KR20150140933A - Greenhouse facility using heating film - Google Patents

Abstract

Greenhouse facilities using a heat generating film are provided. The greenhouse facilities include: a frame; the film for covering the frame and defining an inner space and an outer space; and a lighting means located in the inner space, for providing light from the outer space toward the side of the film on which snow has accumulated. The film absorbs light and generates heat.

Description

{GREENHOUSE FACILITY USING HEATING FILM}

Technical aspects of the present invention relate to greenhouse facilities, and more particularly, to greenhouse facilities installed using heating films.

In general, greenhouse facilities, such as greenhouses, are important facilities used in farmhouses and the like, and are facilities that form a greenhouse by covering a frame structure with a vinyl film excellent in light transmission and airtightness. Such greenhouse facilities are widely used for cultivating vegetables such as vegetables, fruit trees and flowers, regardless of season, because they are relatively inexpensive to install and have excellent warming effect.

However, the greenhouse facilities have problems in that their durability and bearing capacity are weak and they are easily collapsed due to the snow load accumulated in the winter when snowfall occurs in the winter season. This causes loss of crops cultivated inside the greenhouse facilities as well as maintenance of facilities, Causing property damage. In addition, when a large amount of snow is piled up on the upper part of the greenhouse facilities, sunlight is cut off, which adversely affects the growth of crops, and the productivity is lowered.

In order to prevent such snow damage, conventionally, a snow line is installed on the upper part of the greenhouse, or a water spray is installed on the upper part of the greenhouse to dissolve snow, or an air nozzle is installed on the upper part of the greenhouse, To prevent the snow from being scattered, or to generate vibration on the upper part of the greenhouse to prevent the snow from accumulating.

However, conventionally proposed snow removal technologies have problems such as an increase in initial installation cost due to the installation of a large-scale auxiliary facility, an additional cost for operating / maintaining the auxiliary facility, a fire risk in the case of malfunction of the auxiliary facility and collapse of the greenhouse facilities And it is not widely used in reality.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a greenhouse facility capable of easily removing snow accumulated on a film by using a light-heat conversion characteristic of a heat-generating film without adding a large-

According to an aspect of the present invention, there is provided a greenhouse facility comprising: a frame; a film covering the frame; a film defining an inner space and an outer space; And an illumination means for providing light to the film side, wherein the film absorbs the light and generates heat.

In some embodiments, the film may include a base material and a photo-thermal conversion material dispersed within the base material and absorbing the light to generate heat.

In some embodiments, the film comprises a base film and a heating layer that covers at least a portion of the base film and includes a base material and a photo-thermal conversion material dispersed in the base material and generating heat by absorbing the light can do.

In some embodiments, the photo-thermal conversion material may include at least one of a composite oxide, a transition metal oxide, and an inorganic oxide containing at least one element of Group 3 to Group 5.

In some embodiments, the photo-thermal conversion material may have a particle size of nanometer size.

In some embodiments, the photo-thermal conversion material may comprise an aromatic organic compound.

In some embodiments, the light may have a wavelength from the near-ultraviolet region to the near-infrared region.

In some embodiments, the greenhouse facility is adapted to provide the light to a second region corresponding to an area in which the illumination means accumulates snow on the film in a first region facing the interior space, Direction adjusting means for adjusting the direction of the means, and control means for controlling the direction adjusting means in response to the user's input.

In some embodiments, the control means includes a communication unit configured to be able to communicate with an electronic device located at a remote location, wherein the control means receives the user's input from the electronic device via the communication unit, And the direction adjusting means can be controlled in response to the input.

In some embodiments, the greenhouse facility comprises: a snowfall detection means for sensing a snowfall amount on the film in the external space; and a means for detecting the amount of snowfall detected by the snowfall detection means, And direction adjusting means for adjusting the direction of the illuminating means to provide the light to the second region corresponding to the region where the snow is accumulated on the film.

The greenhouse facilities according to the technical idea of the present invention are constructed by installing facilities using a heating film having a photo-thermal conversion function at the time of initial installation or maintenance / repair, securing a moving view, securing a sunshine for development of crops, Only the configuration for controlling the direction of various lighting means used for installation is added, and the installation cost and the maintenance cost can be reduced because a large-scale auxiliary facility for preventing the snowy weather is not required.

In addition, the greenhouse facilities according to the technical idea of the present invention reduce the risk of malfunction and enable easy construction of the automatic snow removal and / or remote snow removal control system.

In addition, the greenhouse facilities according to the technical idea of the present invention are advantageous from the viewpoint of dissemination because they do not require separate education for implementing the snow removal function.

BRIEF DESCRIPTION OF THE DRAWINGS A brief description of each drawing is provided to more fully understand the drawings recited in the description of the invention.
1 is a view for explaining a greenhouse facility according to an embodiment of the present invention.
Fig. 2 is a view for explaining an embodiment of the film of Fig. 1, and Fig. 3 is a flowchart for explaining a manufacturing process of the film of Fig.
FIG. 4 is a view for explaining another embodiment of the film of FIG. 1, and FIG. 5 is a flowchart for explaining the manufacturing process of the film of FIG.
FIG. 6 is a schematic block diagram showing a configuration for explaining an embodiment of control of lighting means in the greenhouse facility of FIG. 1; FIG.
FIG. 7 is a schematic block diagram showing a configuration for explaining another embodiment of the control of the lighting means in the greenhouse facility of FIG. 1; FIG.
8 is a graph showing the results of a snow removal experiment of the greenhouse facilities of FIG.
FIG. 9 is a view for explaining a greenhouse facility according to another embodiment of the present invention.
FIG. 10 is a schematic block diagram showing a part of the configuration for explaining an embodiment of the control of the lighting means in the greenhouse facility of FIG. 9. FIG.

While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In addition, numerals (e.g., first, second, etc.) used in the description of the present invention are merely an identifier for distinguishing one component from another.

Also, in this specification, when an element is referred to as being "connected" or "connected" with another element, the element may be directly connected or directly connected to the other element, It should be understood that, unless an opposite description is present, it may be connected or connected via another element in the middle.

It should be noted that the terms such as "to", "to", "to", "to", "to" and "to" means the unit for processing at least one function or operation, Or software or a combination of hardware and software.

It is to be clarified that the division of constituent parts in this specification is merely a division by each main function of each constituent part. That is, two or more constituent parts to be described below may be combined into one constituent part, or one constituent part may be divided into two or more functions according to functions that are more subdivided. In addition, each of the constituent units described below may additionally perform some or all of the functions of other constituent units in addition to the main functions of the constituent units themselves, and that some of the main functions, And may be carried out in a dedicated manner.

Hereinafter, embodiments of the present invention will be described in detail.

1 is a view for explaining a greenhouse facility according to an embodiment of the present invention.

1, a greenhouse facility 10 may include a frame 110, a film 130, a control means 150, a direction adjusting means 170 and a lighting means 190.

The frame 110 may define the basic structure of the greenhouse 10 on a ground or support plate (not shown). In some embodiments, the first portion P1 of the frame 110 may have an arch shape. The second portion P2 of the frame 110 may extend from one end of the first portion P1 toward the ground or the support plate to support the first portion P1. The third portion P3 of the frame 110 may extend in a direction orthogonal to the extending direction of the second portion P2 between points connecting the first portion P1 and the second portion P3. The shape of the frame 110 shown in FIG. 1 is illustrative, and the technical idea of the present invention is not limited thereto.

The frame 110 may be made of, for example, a metal material, a wood material, a plastic material, or the like.

The film 130 may cover the frame 110 and define an inner space INS and an outer space EXS. That is, the film 130 blocks the inner space INS and the outer space EXS, thereby keeping the temperature of the inner space INS constant. Although not shown in FIG. 1, crops such as vegetables, grains, and flowers may be arranged in the inner space INS.

The film 130 can absorb heat generated by the lighting means 130 and generate heat. Accordingly, snow accumulated on the film 130 at the time of snowfall can be melted and removed. The film 130 will be described in detail below with reference to FIGS. 2 to 5. FIG. Although not shown in FIG. 1, for example, a thermal insulating material may be interposed between the film 130 and the frame 110.

The control means 150 may control the direction adjusting means 170 to adjust the direction of the light provided by the lighting means 190 in response to the user's input. 1, the control means 150 is shown as being located in the internal space INS, but the present invention is not limited thereto, and the control means 150 may be located in the external space EXS.

The direction adjusting means 170 can adjust the direction of the illuminating means 190 to adjust the direction of the light provided by the illuminating means 190. [

In some embodiments, the orienting means 170 is arranged so that the illuminating means 190 is located in a first area in which the illuminating means 190 faces the crop in the inner space INS or in a region where the snow snow on the film 130 is accumulated in the outer space EXS The direction of the illuminating means 190 may be adjusted to provide light to the second region corresponding to the first light. In FIG. 1, the second area is shown as a fixed area facing the ceiling of the facility 10, but the technical idea of the present invention is not limited thereto. The second region may be a concept comprising an area for covering all areas of the eye 130 that have accumulated on the film 130, wherein the orientation means 170 is adapted such that the illumination means The illumination means 190 may be rotated so as to provide light over the entire region.

Likewise, in FIG. 1, the first region is shown as being a fixed region facing a specific crop in the inner space INS, but not limited thereto, wherein the first region is a region in which the crops are arranged in the inner space INS The direction adjusting means 170 may be a concept including an area for covering the entire area, in which the direction adjusting means 170 is arranged so that the illuminating means 190 can illuminate the entire area of the crop, (Not shown).

The direction adjusting means 170 may be constituted by a motor for rotating the lighting means 190, that is, a motor for rotating the lighting means 190, or the like.

1, the direction adjusting means 170 is shown as being separate from the illuminating means 190, but the direction adjusting means 170 may be formed integrally with the illuminating means 190.

The lighting means 190 may be located in the interior space INS and may provide light towards the film 130 or the crop. The light may have a wavelength from the near-ultraviolet region to the near-infrared region. For example, the light may have a wavelength of about 300 nm to about 2500 nm.

The lighting unit 190 may use a tungsten lamp, a xenon lamp, a halogen lamp, an LED lamp, or the like as a light source. The lighting unit 190 may use the pre-installed lighting for ensuring the amount of sunshine, securing the view, and preventing pests.

Unlike FIG. 1 in which only one illumination means 190 is provided in the inner space INS, a plurality of illumination means 190 may be provided in the inner space INS. In this case, the direction adjusting unit 170 may also be composed of a plurality of units.

1, the lighting means 190 is shown as being located in the third portion P3 of the frame 110, but the lighting means 190 is not limited to the frame 110, And may be installed in the inner space INS through the through holes.

In this way, when a large amount of snow is accumulated on the film 130, the greenhouse facility 10 adjusts the direction of the lighting means 190 so as to face the accumulated film 130 side, By allowing the film 130 to generate heat, accumulated eyes can be easily removed.

Accordingly, the greenhouse facilities 10 can be installed and operated at low cost without installing additional facilities such as a hot-water facility for implementing a snow-melting function, a water supply facility for snow removal, or an air supply facility.

Fig. 2 is a view for explaining an embodiment of the film of Fig. 1, and Fig. 3 is a flowchart for explaining a manufacturing process of the film of Fig. FIG. 2 is an enlarged view of a portion A in FIG. 1. In the description of FIG. 2 and FIG. 3, a description overlapping with FIG. 1 will be omitted.

Referring to FIGS. 1 and 2, the film 130a may be formed of a molded body including a base material 131 and a photo-thermal conversion material 133. FIG.

The base material 131 may be a polymer capable of melt-molding into a matrix material. In some embodiments, the base material 131 may be made of an acrylic resin, a polycarbonate resin, a polyester resin, a polyvinyl chloride resin, a polyvinylidene resin, a polypropylene resin, a polystyrene resin, and an ABS resin. In another embodiment, the base material 131 may be made of a high-strength resin, a heat-resistant resin, a weather-resistant resin, or the like.

The photothermal conversion material 133 may have a particle size of a nanometer size and may be dispersed in the base material 131 to absorb heat supplied from the lighting means 190 to generate heat . The photothermal conversion material 133 may have a particle size of, for example, from about 10 nm to about 300 nm.

In some embodiments, the photothermal conversion material 133 may comprise a composite oxide such as tin-doped indium oxide (ITO), antimony-doped tin oxide (ATO), and indium and antimony doped tin oxide (IATO). In another embodiment, the photothermal conversion material 133 may be comprised of a transition metal oxide, such as tungsten oxide. In yet another embodiment, the photo-thermal conversion material 133 may be comprised of an inorganic oxide comprising at least one element from Group 3 to Group 5 elements, such as tin oxide, indium oxide, antimony oxide, and the like.

The photo-thermal conversion material 133 may be an aromatic organic compound that absorbs light provided from the illuminating unit 190 to generate heat. IRG-022, IRG-040, SIR-128, SIR-130 and SIR-132 of Hayamitsu Chemical Industry Co., Ltd., NK-3555, NK-2674, NK- NK-3508, NK-124, NK-2545 and the like.

Thus, the film 130a is directly heated by the light-heat converting function of the photo-thermal conversion material 133 using the absorbed light, so that the accumulated snow on the film 130a can be melted and removed.

The base material 131 and the photo-thermal conversion material 133 are prepared (S310), and then the base material 131 and the photo-thermal conversion material 133 are laminated together To form a molding composition (S320). A dispersing agent, a coupling agent, a wetting agent, and the like may be added to the molding composition. Subsequently, a film 130a is formed by molding the molding composition, for example, injection molding, extrusion molding, press molding, inflation molding or the like (S330).

FIG. 4 is a view for explaining another embodiment of the film of FIG. 1, and FIG. 5 is a flowchart for explaining the manufacturing process of the film of FIG. FIG. 4 is an enlarged view of a portion A in FIG. 1. In the description of FIG. 4 and FIG. 5, a description overlapping with FIG. 1 will be omitted and the description will be made with reference to FIG. 4 and 5, a description overlapping with FIG. 2 and FIG. 3 will be omitted, and differences will be mainly described.

Referring to FIGS. 1 and 4, the film 130b may include a base film 135 and a heating layer 137 covering at least a part of the base film 135. FIG.

The base film 135 may be made of glass, metal, ceramic, polymer or the like having transparency.

The heating layer 137 may be formed to cover at least a part of a surface of the base film 135, for example, a surface facing the inner space INS. However, the present invention is not limited thereto, and the heat generating layer 137 may be formed on at least a part of the surface facing the outer space EXS, or at least a part of the surface facing the inner space INS and the surface facing the outer space EXS As shown in Fig. In another embodiment, the heat generating layer 137 may be formed inside the base film 135 to be spaced apart from the surface facing the inner space INS and / or the surface facing the outer space INS. At this time, the heat generating layer 137 may be formed of a plurality of layers.

The heat generating layer 137 includes a base material 137a and a light heat conversion material 137b dispersed in the base material 137a and absorbing light provided from the lighting means 190 to generate heat can do. The base material 137a and the photo-thermal conversion material 137b correspond to the base material 131 and the photo-thermal conversion material 133 shown in Fig. 2, respectively, and therefore their detailed description will be omitted.

As described above, in the film 130b, the heat generating layer 137 generates heat by the light-heat converting function of the photo-thermal conversion material 137b, so that the accumulated snow on the film 130b can be melted and removed.

The base material 137a, the photo-thermal conversion material 137b and the base film 135 are prepared (S510). Thereafter, the base material 137a, the light heat conversion material 137b, And the converted material (137b) is blended to produce a coating composition (S520). Subsequently, the coating composition is applied to at least one side of the base film 135 to produce a film 130b (S530).

FIG. 6 is a schematic block diagram showing a configuration for explaining an embodiment of control of lighting means in the greenhouse facility of FIG. 1; FIG.

1 and 6, the control means 150 may be connected to the direction adjusting means 170 and / or the lighting means 190 in a wired manner. The control means 150 may control the direction adjusting means 170 and / or the lighting means 190 in response to the user's input. The input of the user may be sensed through, for example, an on / off control unit and a direction adjustment unit (not shown) of the direction adjusting unit 170 provided in the control unit 150. The input of the user may be detected through an on / off control unit (not shown) of the lighting unit 190 provided in the control unit 150, for example.

In another embodiment, the control means 150 may be connected wirelessly with the direction adjusting means 170 and / or the lighting means 190. In this case, the control means 150, the direction adjusting means 170 and the illuminating means 190 may each include a communication module (not shown), and the control means 150 may use the communication module, (170) and / or lighting means (190).

FIG. 7 is a schematic block diagram showing a configuration for explaining another embodiment of the control of the lighting means in the greenhouse facility of FIG. 1; FIG. In the description of FIG. 7, a description overlapping with FIG. 6 will be omitted, and differences will be mainly described.

Referring to FIGS. 1 and 7, the control unit 150 may include a communication unit 151. The control means 150 may receive a signal from the electronic device 30 via the communication portion 151 to control the direction adjusting means 150 and / or the lighting means 190 to a signal corresponding to the user's input .

Here, the electronic device 30 may be any one of a tablet PC, a laptop PC, a smart phone, a personal digital assistant (PDA), a smart TV, and a mobile communication terminal. The electronic device 30 may include a communication unit 31. The electronic device 30 generates the control signal based on a user's input sensed through a display or input pad, (150).

The communication units 31 and 151 may be a communication module for using a communication network such as the Internet or an intranet, or may be a communication module for using a mobile communication network. In another embodiment, the communication units 31 and 151 may be configured as at least one of a local communication module such as a Wi-Fi communication module, a Bluetooth communication module, a Zigbee communication module, and an NFC communication module.

In this manner, remote control of the direction adjusting means 170 and / or the lighting means 190 becomes possible as the control means 150 can wirelessly communicate with the user's electronic device 30 and can easily cope with unexpected heavy snow .

8 is a graph showing the results of a snow removal experiment of the greenhouse facilities of FIG. The snow removal experiments were carried out in an atmospheric environment with an outside air temperature of minus 16 캜 and a snowfall of 15 cm. Fig. 8 (a) shows the experimental results of a facility that schematically implements the greenhouse facilities of Fig. 1 for experiment, 8 (b) shows the experimental results of a facility that roughly implements general greenhouse facilities.

Referring to FIG. 8 (b), it can be seen that in the case of a typical facility, the snow accumulated on the film was not removed at a temperature of -14 ° C. on the film surface. On the other hand, referring to FIG. 8 (a), it can be seen that the temperature of the film surface of the facility according to the technical idea of the present invention is almost 22.9 ° C, and most of the snow accumulated on the film is removed.

As described above, the greenhouse facilities according to the technical idea of the present invention can be easily fused by providing light to the heating film using the lighting means without any additional facilities, and thus it is effective in preventing sea ice.

FIG. 9 is a view for explaining a greenhouse facility according to another embodiment of the present invention. In the description of FIG. 9, the configuration corresponding to that of FIG. 1 is substantially the same, and therefore, overlapping description will be omitted and differences will be mainly described.

9, the greenhouse facilities 20 may include a frame 210, a film 230, a snowfall detecting means 250, a direction adjusting means 270, and a lighting means 290.

The snowfall sensing means 250 may sense the snowfall amount of the film 230 in the external space EXS. The snowfall detection means 250 may be constituted by a sensing means for sensing the snowfall amount based on the accumulated snow load, for example. In another embodiment, the snowfall sensing means 250 may comprise means for sensing the snowfall amount based on a change in tension of the film 230 due to accumulated snow.

The snowfall sensing means 230 may be disposed between the frame 210 and the film 230. However, the present invention is not limited to this, and the snowfall detecting means 230 may be disposed in the frame 210 toward the inner space INS.

The direction adjusting means 270 can adjust the direction of the lighting means 290 to adjust the direction of the light provided by the lighting means 290 based on the snowfall detected by the snowfall detecting means 250 . For example, if the sensed snowfall is less than a predetermined threshold, the direction adjusting means 270 may cause the illumination means 290 to illuminate the first area of the interior space INS towards the crop, Can be adjusted. The direction adjusting means 270 may be configured such that the illuminating means 290 corresponds to an area where the snow on the film 230 is accumulated in the outer space EXS if the detected snowfall amount is larger than the threshold value The direction of the illumination means 290 may be adjusted to provide light to the second area. Here, the threshold value may be set based on a snowfall amount that causes breakage or collapse of the greenhouse facilities 20. [

As described above, the greenhouse facility 20 can easily construct a system capable of automatically controlling the direction adjusting means 270 by using the snowfall detecting means 250, and thus can quickly respond to snowfall, Can be minimized.

FIG. 10 is a schematic block diagram showing a part of the configuration for explaining an embodiment of the control of the lighting means in the greenhouse facility of FIG. 9. FIG.

9 and 10, the snowfall amount sensing means 250 may be connected to the direction adjusting means 270 in a wired or wireless manner. When the snowfall detecting means 250 and the direction adjusting means 270 are connected to each other wirelessly, the snowfall detecting means 250 and the direction adjusting means 270 are provided with a communication module (not shown) .

Although not shown in FIG. 10, the amount of snowfall sensed by the snowfall sensing means 250 may be determined based on the amount of snowfall sensed by the snowfall sensing means 250 by connecting the snowfall sensing means 250 and the illumination means 290, On / off of the lighting means 290 can be controlled. The greenhouse facility 20 may also include the control means 150 shown in Figures 5 and 6 separately from the snowfall sensing means 250 and may include a directional control means 270, It is of course possible to control the means 270.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, This is possible.

10, 20: Greenhouse facilities 110, 210: Frame
130, 230: Film 150: Control means
250: snowfall detecting means 170, 270: direction adjusting means
190, 290: Lighting means

Claims (10)

frame;
A film covering the frame, defining an inner space and an outer space; And
And illumination means located in the interior space and providing light to the film side of the eye in the exterior space,
Wherein the film absorbs the light to generate heat.
The film according to claim 1,
Base material; And
A photo-thermal conversion material dispersed in the base material and absorbing the light to generate heat;
≪ / RTI >
The film according to claim 1,
A base film; And
And a heat generating layer covering at least a part of the base film and including a base material and a photo-thermal conversion material dispersed in the base material and absorbing the light to generate heat.
The method according to claim 2 or 3, wherein the photo-
A complex oxide, a transition metal oxide, and an inorganic oxide containing at least one element selected from Group 3 to Group 5 elements.
The method of claim 4, wherein the photo-
Facility having a particle size of nanometer size.
The method according to claim 2 or 3, wherein the photo-
An aromatic organic compound.
The light source according to claim 1,
A facility having wavelengths from near ultraviolet to near infrared.
The method according to claim 1,
Direction adjusting means for adjusting the direction of the illuminating means so as to provide the light in a first region facing the inner space or in a second region corresponding to an area where snow is accumulated on the film in the outer space; And
Control means for controlling said direction adjusting means in response to a user input;
Further comprising:
9. The method of claim 8,
Wherein the control means includes a communication unit configured to be capable of communicating with an electronic device located at a remote location,
Wherein the control means receives the user's input from the electronic device via the communication unit and controls the direction adjusting means in response to the input of the user.
The method according to claim 1,
A snowfall amount sensing means for sensing snowfall amount on the film in the external space; And
Wherein the illuminating means is arranged to direct the direction of the illuminating means to provide the light in a second region corresponding to an area in which the snow is accumulated on the film in the outer space if the snowfall detected by the snowfall detecting means is greater than a predetermined threshold, A direction adjusting means for adjusting the direction of the light;
Further comprising:

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