Plant cultivation equipment

Abstract

The plant cultivation device of an embodiment of the present invention includes: a shell, which forms a cultivation space; a plurality of cultivation beds, which are arranged in the cultivation space along the up and down direction and are used for cultivating plants; a plurality of lamp assemblies, which are respectively arranged above the cultivation beds and irradiate light to the upper surface of the cultivation beds; a water tank, which stores water supplied to the cultivation beds; a heat exchanger, which is arranged on the inner rear wall of the shell and regulates the temperature of the cultivation space; and a blower assembly, which is arranged in front of the heat exchanger and circulates the air in the cultivation space.

Description

[0001] This application is a divisional application with application number 201911408413.2, application date December 31, 2019, and invention name “Plant cultivation device”. Technical Field

[0002] The present invention relates to a plant cultivation device. Background Art

[0003] A typical plant cultivation device forms a predetermined cultivation chamber with an environment suitable for plant growth, and plants are stored inside the predetermined cultivation chamber. The plant cultivation device is provided with a structure for supplying nutrients and light energy required for plant growth, and the plants grow with the supplied nutrients and light energy.

[0004] Korean Patent Registration No. 10-1240375 discloses a plant cultivation device based on the prior art.

[0005] In the prior art described above, a structure as described below is disclosed, namely, multiple layers of trays are arranged inside a shell, light is irradiated from a light irradiation portion to the trays, nutrient solution is supplied to the trays through a nutrient solution recovery container, and an air conditioning device and an air circulation fan are used to maintain a set temperature inside the shell, thereby allowing plants to be cultivated.

[0006] However, in the conventional technology described above, the air conditioner for adjusting the temperature inside the housing is disposed below the housing, and the air blower fan is also disposed below the housing, thereby causing a problem of reducing the air conditioning efficiency of the space inside the housing.

[0007] Furthermore, since the air supply fan is disposed at a position offset to one side below the housing, there is a problem in that it is difficult to maintain a uniform temperature in the entire space where the plants grow.

[0008] Furthermore, the air supply fan is provided below the tray where the plants grow, and thus there is a problem in that it is difficult to effectively supply air to the area where the plants actually grow.

[0009] In addition, Korean authorized utility model No. 20-0467246 discloses a home plant factory structure, in which nutrient solution is supplied from a nutrient solution barrel to a tray for growing plants inside the main body of the home plant factory, and the temperature inside the main body can be adjusted by an air conditioning module and multiple air conditioning fans.

[0010] However, in the structure described above, the air conditioning module is arranged at the bottom, and the air conditioning fan is used to circulate the air to adjust the temperature inside the main body. Therefore, the ability to directly heat or cool is relatively insufficient, and therefore, there is a problem of low temperature regulation efficiency inside the shell.

[0011] Furthermore, the air conditioning module inside the main body is arranged at the bottom. Therefore, in order to make the temperature inside the main body uniform, an air conditioning fan is used to supply air. However, there is a problem that the air required for plant growth cannot be effectively provided. Summary of the Invention

[0012] An object of the present invention is to provide a plant cultivation device capable of improving the efficiency and performance of temperature regulation in a cultivation space.

[0013] An object of the present invention is to provide a plant cultivation device having an arrangement structure capable of minimizing the loss of cultivation space.

[0014] An object of the present invention is to provide a plant cultivation device having an air circulation structure capable of promoting the growth of plants.

[0015] An object of the present invention is to provide a plant cultivation device that can prevent a lamp assembly from overheating.

[0016] An object of the present invention is to provide a plant cultivation device that reduces manufacturing costs and improves productivity.

[0017] An object of the present invention is to provide a plant cultivation device capable of further improving the internal appearance of a cultivation space.

[0018] An object of the present invention is to provide a plant cultivation device capable of supplying a uniform air volume to the inside of a cultivation space.

[0019] In the present invention, a heat exchanger is arranged on the inner rear wall of the shell, and a blower assembly is provided in front of the heat exchanger, so that the cultivation space can be heated or cooled directly or indirectly.

[0020] The heat exchanger and blower assembly may be located in an area above the machinery room.

[0021] A heater may also be provided on the rear wall of the cultivation space.

[0022] The heat exchanger is formed of a roll-bonded heat exchanger and can be attached to the inner side surface of the rear wall of the cultivation space.

[0023] The heater is provided at a position corresponding to the heat exchanger and may be provided on an outer side surface of a rear wall of the cultivation space.

[0024] The evaporator may overlap with a plurality of spaces divided by the cultivation bed.

[0025] The blower assembly is disposed between the cultivation bed and the lamp assembly, so that air can circulate in the space between the cultivation bed and the lamp assembly.

[0026] The blower assembly may be disposed between a rear end of the cultivation bed and a rear end of the lamp assembly.

[0027] An outlet for discharging air from the blower assembly may be adjacent to a lower surface of the lamp assembly, and an inlet for sucking air may be adjacent to an upper surface of the cultivation bed.

[0028] The blower assembly may be provided with a discharge guide portion for guiding discharged air so that the discharged air passes through a lower surface of the lamp assembly.

[0029] The blower assembly includes: a blower body for mounting an air blower fan; and a blower cover for shielding the blower body, wherein the blower cover can shield the space between the lamp assembly and the cultivation bed.

[0030] The blower body is provided with an air guide extending toward both sides of the blower fan and being formed to be inclined toward the outlet so that air can be discharged from the outlet with a uniform air volume.

[0031] The plant cultivation device according to the embodiment of the present invention can have the following effects.

[0032] According to an embodiment of the present invention, a heat exchanger is positioned on the rear wall of the cultivation space, while a blower assembly is located in front of the heat exchanger. Thus, the heat exchanger can directly cool or heat the interior of the cultivation space, while the blower assembly can also indirectly cool or heat the interior, significantly improving temperature regulation efficiency and performance.

[0033] In addition, the blower assembly has a structure that blows air toward the lower surface of the lamp assembly and blows air toward the upper surface of the cultivation bed, thereby achieving overall air circulation of the lamp assembly and the cultivation bed, and not only has the advantage that the temperature of the cultivation space can be quickly cooled and heated, but also has the advantage that a uniform temperature can be maintained as a whole.

[0034] In particular, the blower assembly is arranged between the lamp assembly and the rear end of the cultivation bed, thereby providing air flow that can circulate in the space formed by the lamp assembly and the cultivation bed as a whole, thereby regulating and maintaining the temperature, and thus significantly improving performance can be expected.

[0035] Furthermore, the air sucked into the blower assembly passes through the upper surface of the cultivation bed, thereby causing the plants growing in the cultivation bed to sway due to the flow of air, and providing a set air volume with appropriate stress, thereby having the advantage of promoting plant growth.

[0036] In addition, an exhaust guide portion is formed on the outlet side of the blower assembly to guide the exhausted air so that the air is directed toward the lower surface of the lamp assembly. As a result, the lamp assembly can be cooled when it generates heat. This has the advantage of eliminating temperature unevenness inside the cultivation space and preventing the lamp assembly from overheating.

[0037] Furthermore, the blower assembly is configured to extend to both ends of the cultivation space, and the air discharged through the air guide structure within the blower assembly has a uniform air volume across the entire outlet area. This allows for a uniform temperature within the cultivation space, and provides plants within the cultivation space with air of uniform intensity, thereby enabling uniform plant growth.

[0038] Furthermore, the air blower cover can shield the space between the lamp assembly and the cultivation bed, thereby preventing unnecessary structures from being exposed inside the cultivation space and improving the appearance.

[0039] Furthermore, the blower cover is formed of the same metal material as the inner side surface of the cultivation space, thereby having the advantage of further improving the appearance.

[0040] In addition, the blower assembly can be composed of a modular type, so that it can be installed in multiple spaces divided by multiple cultivation beds. In particular, by only adjusting the length of the blower cover, the blower cover can be adapted to spaces of various heights, thereby having the advantages of improving productivity and reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a perspective view of a plant cultivation device according to an embodiment of the present invention.

[0042] Figure 2 It is a perspective view of the plant cultivation device with the door opened.

[0043] Figure 3 It is an exploded perspective view of the plant cultivation device.

[0044] Figure 4 This is an exploded perspective view of a housing as one structure of the plant cultivation device.

[0045] Figure 5 is a longitudinal sectional view of the housing.

[0046] Figure 6 It is an exploded perspective view of a water supply assembly as one structure of the plant cultivation device.

[0047] Figure 7This is a cutaway perspective view of a state in which a water tank, which is one component of the plant cultivation device, is installed.

[0048] Figure 8 It is a perspective view with the lid of the water tank opened.

[0049] Figure 9 It is an exploded perspective view of the water tank.

[0050] Figure 10 yes Figure 8 Magnified view of part A.

[0051] Figure 11 It is along Figure 8 A three-dimensional view taken along line 11-11'.

[0052] Figure 12 It is along Figure 8 A three-dimensional view taken along the 12-12' line.

[0053] Figure 13 It is a diagram showing the arrangement of the water supply pipe inside the main body.

[0054] Figure 14 It is shown in Figure 13 The picture shows the state of the lower cultivation bed installed.

[0055] Figure 15 It is a perspective view of a cultivation bed which is one structure of the plant cultivation device.

[0056] Figure 16 This is an exploded perspective view of the cultivation bed as viewed from above.

[0057] Figure 17 This is an exploded perspective view of the cultivation bed as viewed from below.

[0058] Figure 18 It is a three-dimensional diagram of the lower cultivation bed.

[0059] Figure 19 It is an exploded perspective view of a seed package placed on the cultivation bed.

[0060] Figure 20 1 is a top view of a port as a structure of the seed package.

[0061] Figure 21 It is a cross-sectional view showing a state where the seed package is placed on the cultivation bed.

[0062] Figure 22 It is a perspective view of a cultivation bed support as one structure of the cultivation bed.

[0063] Figure 23 This is a bottom view of the cultivation bed as viewed from below.

[0064] Figure 24 It is along Figure 23 A three-dimensional view taken along the 24-24' line.

[0065] Figure 25 It is a cutaway perspective view showing the lower cultivation bed in a pulled-out state.

[0066] Figure 26 It is a perspective view of a pull-out / push-in guide for pulling out / pushing in the cultivation bed.

[0067] Figure 27 This is a diagram showing a state where the cultivation bed is pushed in.

[0068] Figure 28 This is a diagram showing a state where the cultivation bed is pulled out.

[0069] Figure 29 It is a cross-sectional view showing a state where the lamp assembly is mounted on the pull-out / push-in guide.

[0070] Figure 30 FIG. 1 is a diagram illustrating a coupling structure of a lamp mounting member for mounting the lamp assembly.

[0071] Figure 31 This is an exploded perspective view of the lamp assembly as viewed from above.

[0072] Figure 32 This is an exploded perspective view of the lamp assembly as viewed from below.

[0073] Figure 33 This is a diagram showing a state in which a display unit as one structure of the plant cultivation apparatus is installed.

[0074] Figure 34 is an exploded perspective view of the display assembly.

[0075] Figure 35 This is a diagram showing a state in which a blower assembly, which is one structure of the plant cultivation apparatus, is installed.

[0076] Figure 36 This is an exploded perspective view of the blower assembly as viewed from the front.

[0077] Figure 37 This is an exploded perspective view of the blower assembly as viewed from the rear.

[0078] Figure 38 It is a perspective view of the blower assembly as viewed from the rear.

[0079] Figure 39 It is along Figure 38 A three-dimensional view taken along line 39-39'.

[0080] Figure 40 It is a cross-sectional view showing a state of air circulation inside the housing.

[0081] Figure 41 yes Figure 40 Magnified view of part B.

[0082] Figure 42 It is a perspective view of the machine room of the plant cultivation device with the machine room opened.

[0083] Figure 43 This is a partial perspective view of the housing as viewed from below.

[0084] Figure 44 It is a perspective view of a supply pipe as one structure of the plant cultivation device.

[0085] Figure 45 is a top view showing the arrangement of the supply and return ducts in the machinery room.

[0086] Figure 46 FIG. 1 is a diagram showing the state of carbon dioxide being supplied and discharged through the supply pipe and the return pipe.

[0087] Figure 47 It is a perspective view showing the internal structure of a bottom case which is one structure of the plant cultivation device.

[0088] Figure 48 1 is a diagram showing the flow of control signals in the plant cultivation device.

[0089] Figure 49 This is a diagram schematically showing an operating state of the plant cultivation device.

[0090] Figure 50 This is a diagram showing the internal structure of a plant cultivation device according to another embodiment of the present invention. DETAILED DESCRIPTION

[0091] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments of the present invention, and other degenerate inventions or other embodiments within the scope of the present invention can be easily proposed by adding, modifying, or deleting other components.

[0092] [Overall structure]

[0093] Figure 1 It is a perspective view of a plant cultivation device according to an embodiment of the present invention. Figure 2 It is a perspective view of the plant cultivation device with the door opened. Figure 3 It is an exploded perspective view of the plant cultivation device.

[0094] As shown in the figure, the plant cultivation device 1 according to an embodiment of the present invention can be composed of a housing 10 having a space for cultivating plants therein and a door 20 for opening and closing the housing 10. In this case, the plants to be cultivated are preferably leafy vegetables, herbs, or other edible plants that can be used in rice or salads, are easy to cultivate, and do not take up a large amount of space.

[0095] The housing 10 is formed with an open front surface, and a cultivation space 11 may be provided inside the housing 10. The housing 10 may be heat-insulated, so that the cultivation space 11 may maintain a set temperature.

[0096] Multiple cultivation beds 50 can be arranged vertically within the housing 10. In this embodiment, two cultivation beds 50 are provided, one above the other. For ease of description, they are referred to as an upper cultivation bed 50 and a lower cultivation bed 50, respectively. Of course, depending on the size of the housing 10, more than two cultivation beds 50 can be provided.

[0097] Furthermore, the cultivation bed 50 may be configured to house a plurality of seed packages 90 containing plant seeds and nutrients required for cultivation. The cultivation bed 50 may be referred to as a partition or tray. The seed packages 90 may be configured to appropriately combine various types of seeds and nutrients suitable for the seeds, allowing the user to select the desired product to be cultivated. Furthermore, the cultivation bed 50 may be configured to house and maintain the seed packages 90.

[0098] Furthermore, a flow path for the water supplied from the water tank 40 may be formed in the cultivation bed 50 . In addition, the cultivation bed may maintain an appropriate water level so that the moisture can be supplied to the seed package 90 .

[0099] Pull-out / push-in guides 56 may be provided on both side surfaces of the housing 10, and both ends of the cultivation bed 50 may be supported in a state of being placed on the pull-out / push-in guides 56. The cultivation bed 50 may be pulled out / pushed in the front-back direction by the pull-out / push-in guides 56. The cultivation bed 50 may be pulled out / pushed in the inner side of the cultivation space 11. When the cultivation bed 50 is pulled out, the seed package 90 may be easily placed on the cultivation bed 50 for management.

[0100] The housing 10 can be equipped with a refrigeration cycle comprising a compressor 32, a condenser 33, and an evaporator 31, and the internal temperature of the cultivation space can be regulated by the refrigeration cycle. In this case, the evaporator 31 can be located on the inner rear wall of the housing, while the compressor 32, condenser 33, and other components can be located in the machinery compartment 12, which is located at the lower end of the rear half of the housing 10. The machinery compartment 12 can be separated from the cultivation space 11, thereby preventing noise intrusion, maintaining thermal insulation in the cultivation space 11, and ensuring user safety.

[0101] The evaporator 31 may be configured as a roll-bond heat exchanger and may be referred to as a heat exchanger. The evaporator 31 may have a plate-like structure that is easily attached to the inner rear wall of the housing 10. Furthermore, the plate-like structure of the evaporator 31 minimizes heat loss in the cultivation space 11. Furthermore, the proximity of the evaporator 31 to the cultivation space 11 allows for efficient temperature regulation in the cultivation space 11.

[0102] Furthermore, a blower assembly 80 may be installed in front of the evaporator 31. The blower assemblies 80, arranged one above the other, differ only in their mounting positions; their structures and shapes are identical. The blower assemblies 80 may be provided in a number corresponding to the number of growing beds 50, and may blow air from the rear toward the front of the growing beds 50. This allows for independent air circulation within each space within the growing space 11, which is defined by the growing beds 50.

[0103] The air inside the cultivation space is circulated by the blower assembly 80, and in particular, the circulated air is passed through the evaporator, thereby achieving a uniform temperature throughout the cultivation space 11 and enabling rapid temperature adjustment. Furthermore, the air circulated by the blower assembly 80 can flow through the upper surface of the cultivation bed 50 and the lower surface of the lamp assembly 60.

[0104] The air flowing through the blower assembly 80, when passing over the upper surface of the cultivation bed 50, facilitates the breathing of the plants growing from the cultivation bed 50 and causes the plants to shake appropriately, thereby providing optimal airflow required for cultivation by regulating stress. Furthermore, the air flowing through the blower assembly 80, when passing over the lower surface of the lamp assembly 60, prevents the lamp assembly 60 from overheating.

[0105] Furthermore, a lamp assembly 60 may be provided above the cultivation bed 50. The lamp assembly 60 irradiates light toward the cultivation bed 50, thereby providing the light required by the plants. The amount of light irradiated by the lamp assembly 60 can be set to be similar to sunlight, and the amount of light and irradiation time can be set to be optimal for the plants being cultivated.

[0106] A water tank 40 may be provided on the bottom surface of the inner side of the housing 10. The water tank 40 may store water for supplying to the cultivation beds 50. The water tank 40 may be located below the lowest cultivation bed 50 among the plurality of cultivation beds 50, and the front surface of the water tank 40 may be located at a position corresponding to the front end of the cultivation bed 50.

[0107] The lateral length of the water tank 40 may correspond to the width of the inner space of the housing 10. Furthermore, the vertical length of the water tank 40 may correspond to the distance between the lowest cultivation bed 50 and the bottom surface of the cultivation space 11. In other words, the water tank 40 may be formed to fill the entire space below the lowest cultivation bed 50, while also shielding the space behind the water tank 40.

[0108] A water supply tank 49 may be provided in the rear space shielded by the water tank 40. A water pump 494, a flow meter 495, and a water supply valve 496, described later, may be provided inside the water supply tank 49. The water supply tank 49, the structures inside the water supply tank 49, and the pipes connected to these structures may be referred to as a water supply unit or a water supply assembly.

[0109] The water tank 40 can be installed in a manner that can be pulled out / pushed in the front-rear direction inside the housing 10 and has a detachable structure. Therefore, the water tank 40 can have a structure that is easy to supply water or wash and to manage.

[0110] Furthermore, a display assembly 70 may be provided in the front half of the opening of the housing 10. The display assembly 70 can externally display the operating status of the plant cultivation device 1. Furthermore, an operation unit for inputting user operations is provided in the display assembly 70, thereby enabling setting and inputting the overall operation of the plant cultivation device. For example, the display assembly 70 may include a touchscreen structure, and may also include components such as buttons and switches.

[0111] The display assembly 70 may be located on the same front surface as the front end of the cultivation bed 50. The display assembly 70 may also be located at the front end of the front surface of the opening of the housing 10, and when the door 20 is closed, the display assembly 70 may be configured in a manner very close to the back of the door 20.

[0112] The door 20 may be sized to cover the front surface of the opening of the housing 10. Furthermore, an upper hinge 211 and a lower hinge 212 may be pivotally coupled to the upper and lower ends of one of the left and right sides of the door 20. The door 20 may be rotatably coupled to the housing 10 via the upper hinge 211 and the lower hinge 212, and the cultivation space 11 may be opened and closed by rotating the door 20.

[0113] At least a portion of the door 20 may have a see-through structure, and the cultivation space 11 may be visible even when the door 20 is closed.

[0114] Specifically, the door 20 may include a door frame 22 having an outer periphery and an opening in the center, and a door panel 23 for shielding the opening of the door frame 22. The door panel 23 may be formed of glass or a transparent plastic material to provide a structure that allows for a see-through view of the interior. Furthermore, the door panel 23 may be colored or coated with a color, metallized, or attached with a film, thereby selectively allowing the cultivation space 11 to be visible or invisible.

[0115] For example, when the door 20 is closed and the light assembly 60 is turned on, the interior of the cultivation space 11 is illuminated, allowing the interior to be seen through the door panel 23. Conversely, when the door 20 is closed and the light assembly 60 is turned off, the interior of the cultivation space 11 becomes dark, making the cultivation space 11 invisible due to the color or optical characteristics of the door panel 23. This structure makes it easy to check the interior of the cultivation space 11 even when the door 20 is closed, thereby allowing the plant cultivation status to be confirmed and the internal effects to be displayed. When the interior is not required, the appearance of the cultivation space 11 can be maintained in a neat and tidy state.

[0116] Furthermore, when the light assembly 60 is turned on, the display assembly 70 can be viewed through the door panel 23. Therefore, the user can check information on the display assembly 70 while the door 20 is closed. Furthermore, even when the light assembly 60 is turned off, if the display assembly 70 itself is turned on and illuminated, only the display assembly 70 can be viewed through the door 20.

[0117] In addition, the door panels 23 may be arranged in a plurality at the front and rear sides, and a heat-insulating space may be formed between the plurality of door panels 23. Furthermore, the door panels 23 may include heat-insulating glass as needed, thereby heat-insulating the interior of the housing 10 from the exterior.

[0118] A door handle 221 for rotating the door 20 may be provided on the front surface of the door frame 22. Furthermore, a gasket 222 may be provided on the outer periphery of the back surface of the door frame 22 to seal the housing 10 and the door 20. Furthermore, although not shown, a door heater 24 may be provided on the door 20 to prevent condensation on the surface of the door 20.

[0119] Furthermore, the lower surface of the housing 10 may be slightly spaced from the ground on which the plant cultivation device 1 is installed, and a bottom case 19 may be provided on the lower surface of the housing 10. The bottom case 19 may accommodate electrical components disposed outside the housing 10, such as a door switch 195, an external temperature sensor 194, an external humidity sensor 184, and a communication unit 185, which will be described later. The bottom case 19 may be provided on the lower surface of the housing 10 and may be configured so as not to be exposed to the outside when the door 20 is closed.

[0120] [Case structure]

[0121] Hereinafter, the structure of the housing 10 will be described in detail with reference to the accompanying drawings.

[0122] Figure 4 : is an exploded perspective view of a housing as one structure of the plant cultivation device. Figure 5 is a longitudinal sectional view of the housing.

[0123] As shown in the figure, the housing 10 may include an outer shell 130 forming an outer shape and an inner shell 140 forming the cultivation space. In addition, a heat insulating material is provided between the outer shell 130 and the inner shell 140, so that the inside and outside of the housing 10 can be heat-insulated.

[0124] The housing 130 may be formed of a metal material and may be composed of at least one plate forming the outer surface of the housing 10. For example, the housing 130 may include: outer plates 131 forming left and right side surfaces; an outer upper plate 132 forming the upper surface; an outer rear plate 134 forming the rear surface; and an outer bottom plate 133 forming the lower surface.

[0125] Furthermore, the outer bottom plate 133 may be curved so that the machinery compartment 12 is formed at a corner portion at the lower end of the rear half of the housing 10. Thus, the machinery compartment 12, which houses the compressor 32, condenser 33, condenser fan 34, fan guide 341, and the like, can be configured as a separate space from the cultivation space 11. Furthermore, the lower surface of the machinery compartment 12 may be formed by a machinery compartment base 121, and the rear surface of the machinery compartment 12 may be shielded by a machinery compartment grille (not shown).

[0126] A control unit 18 may be provided on the rear surface of the housing 10, i.e., on the back side of the outer rear panel 134. The control unit 18 may be configured to control the overall operation of the plant cultivation device. The control unit 18 may include a separate compressor PCB (printed circuit board) 181 to control the compressor 32.

[0127] The inner shell 140 may be formed of a metal material and may be composed of a plurality of plates forming the inner side of the housing 10, that is, the cultivation space 11. Of course, at least a portion of the inner shell 140 may also be formed of a plastic material.

[0128] The inner shell 140 can be formed of a metal material with excellent thermal conductivity, such as aluminum. The inner shell 140 made of metal material has excellent thermal conductivity, so that when the cultivation space 11 is heated or cooled, the interior of the cultivation space 11 can have a relatively uniform temperature distribution. In addition, the inner shell 140 can be configured to reflect the light irradiated from the lamp assembly 60. The light irradiated from the lamp assembly 60 can be reflected on the surface of the inner shell 140 made of metal material and uniformly irradiate the plants in the entire area of ​​the cultivation bed 50, and can eliminate shadow areas that are not irradiated with light. To this end, surface treatment, coating or adhesion of a film for improving the reflective performance can also be performed on each surface of the inner shell 140.

[0129] The inner shell 140 may include: inner side panels 141 forming two side surfaces; an inner upper panel 142 forming an upper surface; an inner rear panel 146 forming a rear surface; and inner bottom panels 143, 144, 145 forming a lower surface.

[0130] The evaporator 31 is disposed on the front surface of the inner rear plate 146, and the heater 102 can be disposed on the back surface of the inner rear plate 146. Therefore, heating and cooling can be performed in the rear area of ​​the cultivation space.

[0131] The evaporator 31 is located between the inner rear plate 146 and the blower assembly 80 and can be cooled by the refrigerant flowing by driving the compressor 32. In addition, the air cooled by the blower assembly 80 circulates inside the cultivation space 11, thereby uniformly cooling the cultivation space 11.

[0132] The heater 102 is located on the back side of the inner rear panel 146 and can be filled with the thermal insulation material 101. The heater 102 can be located in the area corresponding to the evaporator 31. The interior of the cultivation space 11 can create a humid environment due to a continuous supply of water and the respiration of the plants. Therefore, for safety and durability, the heater 102 is preferably located on the back side of the inner rear panel 146 so that it is not exposed to the interior of the cultivation space 11.

[0133] The heater 102 can be driven to heat the area of ​​the inner rear panel 146. The air heated by the blower assembly 80 can be circulated inside the cultivation space 11, thereby uniformly heating the cultivation space 11. Furthermore, the heater 102 is located in the area corresponding to the evaporator 31. Therefore, it can be operated when the evaporator 31 is frozen and used to defrost the evaporator 31.

[0134] The interior of the cultivation space 11 can be maintained at a temperature suitable for growing plants (e.g., 18° C. to 28° C.) using the evaporator 31 and the heater 102. The temperature inside the cultivation space 11 can be sensed by an internal temperature sensor 182 and can be maintained constant regardless of the external temperature of the housing 10.

[0135] In addition, the inner bottom plates 143 , 144 , and 145 may be formed in a shape corresponding to the curved shape of the outer bottom plate 133 , and the first bottom plate 143 , the second bottom plate 144 , and the third bottom plate 145 may be formed separately and have a structure combined with each other.

[0136] A return duct hole 143 a for installing a return duct 150 may be formed in the first bottom plate 143 . The return duct 150 may be connected to the machine room 12 to discharge air in the cultivation space 11 to the machine room 12 .

[0137] The return duct 150 may include a duct mounting portion 151 mounted on the return duct hole 143 a and a discharge pipe 152 extending from the center of the duct mounting portion 151 through the opening 133 a of the outer bottom plate 133 to the inside of the machine room 12 .

[0138] The duct mounting portion 151 can be formed to be inclined toward the discharge pipe 152. Furthermore, the duct mounting portion 151 is positioned below the inner rear panel 146 and below the evaporator 31. This allows condensation to be discharged toward the machine room 12 when it occurs within the cultivation space 11. In this case, a dry fan can be installed within the machine room 12 to collect water discharged through the return duct 150.

[0139] The machinery room 12 can be connected to the cultivation space 11 via the supply pipe 17, so that carbon dioxide (CO2) required for growing plants can be supplied from the machinery room 12 to the cultivation space 11. In addition, air inside the cultivation space 11 can be exhausted through the return pipe 150. At least one side of the supply pipe 17 and the return pipe 150 can have an openable and closable structure and can be opened when supplying carbon dioxide.

[0140] A decorative member 160 may be provided on the front surface of the housing 10. The decorative member 160 connects the front ends of the inner shell 140 and the outer shell 130 and may contribute to the appearance of the front surface of the housing 10. The decorative member 160 may include a decorative frame 161 formed along the outer periphery of the front surface of the opening of the housing 10; and an upper decorative member 162 and a lower decorative member 163 forming the upper and lower ends of the front surface of the housing 10.

[0141] Furthermore, regarding the configuration of the lower space within the housing 10, the configuration of the machinery compartment 12 forms an inwardly protruding step 147 on the lower surface of the cultivation space 11. Specifically, the step 147 may protrude from the rear end of the lower surface of the cultivation space 11. Due to the formation of the machinery compartment 12, the step 147 may be formed higher than the front half of the cultivation space 11.

[0142] Furthermore, the rear half of the lowest cultivation bed 50 can be positioned on the upper surface of the stepped portion 147. Furthermore, the water tank 40 and the water supply tank 49 can be positioned in the space between the lower surface of the cultivation bed 50 and the front of the stepped portion 147 in the front-to-back direction. In this case, the heights of the water tank 40 and the water supply tank 49 can be configured to correspond to the height of the stepped portion 147. Therefore, when the cultivation bed 50 is positioned, it can be positioned horizontally, providing a stable installation structure that does not interfere with not only the stepped portion 147 but also the water tank 40 and the water supply tank 49 in front of the stepped portion 147.

[0143] The cultivation bed 50 is placed on the step portion 147 of the lower surface of the cultivation space 11, and the water tank 40 and the water supply tank 49 can be configured to fill the space provided between the lower surface of the cultivation space 11 in front of the step portion 147 and the cultivation bed 50. The above-mentioned spatial structure can ensure the height for the multi-layer arrangement of the cultivation bed 50, and at the same time, the water tank 40 and the water supply assembly with sufficient capacity can be effectively arranged in the space to prevent space loss.

[0144] Reference Figure 5The structure of the lower portion of the housing 10 will be described again. The mechanical chamber 12 is separated from the cultivation space 11, and the stepped portion 147 is formed within the cultivation space 11. A water tank 40 and a water supply tank 49 may be arranged in sequence in front of the stepped portion 147. Therefore, by arranging the mechanical chamber 12, the water tank 40, and the water supply assembly in the space below the cultivation bed 50 at the lowest end, the space can be completely filled, thereby preventing loss of the cultivation space 11. Furthermore, the water tank 40 can be positioned close to the front surface of the housing 10, which is open, making it easily accessible to the user.

[0145] The water tank 40 can be configured to be slidably pulled out / pushed inwardly inside the housing 10 for water supply and maintenance. Furthermore, the water supply tank 49 remains fixed within the housing 10, so that the connecting pipe 492 provided in the water supply tank 49 and the suction pipe 412 provided within the water tank 40 can be configured to be selectively connected to or separated from each other.

[0146] [Water supply components]

[0147] Hereinafter, the structure of the water supply assembly will be described in detail with reference to the accompanying drawings.

[0148] Figure 6 This is an exploded perspective view of a water supply assembly as one structure of the plant cultivation device. Figure 7 This is a cutaway perspective view of a state in which a water tank, which is one component of the plant cultivation device, is installed.

[0149] As shown in the figure, the water supply tank 49 may be formed in a box shape with an open rear surface. In addition, a space capable of accommodating the connecting pipe 492, the water pump 494, the flow meter 495, the water supply valve 496, etc. may be provided inside the water supply tank 49.

[0150] The water supply box 49 may be formed to have the same height as or slightly lower than the step portion 147 when placed inside the cultivation space 11. In addition, the rear surface of the opening of the water supply box 49 may be shielded by the front surface of the step portion 147.

[0151] A housing hole 491 communicating with a connecting pipe 492 may be formed on one side of the front surface of the water supply tank 49. The housing hole 491 may be formed at a position corresponding to the inlet of the connecting pipe 492. Furthermore, when the water tank 40 is installed, the suction pipe 412 may pass through the housing hole 491 and be connected to the connecting pipe 492.

[0152] A water tank switch 493 may be installed on the other side of the front surface of the water supply tank 49. The water tank switch 493 may protrude toward the water tank 40. Figure 7 As shown, when the water tank 40 is installed, it is configured to be pressed by the rear surface of the water tank 40.

[0153] Therefore, the water tank switch 493 can sense whether the water tank 40 is properly installed and ready to supply water, and transmit this information to the control unit. If the water tank 40 installation signal is not input through the water tank switch 493, the water pump can be disabled. In addition, the user can be informed by displaying the information that the water tank 40 is not installed on the display assembly 70.

[0154] A bracket 497 may be provided inside the water supply tank 49. The bracket 497 may be used to mount the water pump 494, the flow meter 495, and the water supply valve 496.

[0155] The connecting pipe 492 is connected to the water pump 494 , the flow meter 495 and the water supply valve 496 in sequence through pipes. By running the water pump 494 , the water in the water tank 40 can be supplied to the cultivation bed 50 through the flow meter 495 and the water supply valve 496 .

[0156] The flow meter 495 senses the flow rate of supplied water, preventing excessive water from being supplied to the cultivation bed 50 and causing it to overflow. Furthermore, the amount of water supplied to the cultivation bed 50 can be adjusted by metering the water supply using the flow meter 495. This allows the optimal amount of water to be supplied to the cultivation bed 50 according to the plant's growth stage, preventing excessive moisture from accumulating in the cultivation bed 50. This ensures that the cultivation bed 50 remains clean and the humidity within the cultivation bed 50 and the cultivation space 11 is appropriately maintained.

[0157] When the water pump 494 is driven, the water supply valve 496 is opened to supply water to the cultivation beds 50. The water supply valve 496 may be provided in plurality according to the number of the cultivation beds 50, or water may be supplied from one water supply valve 496 to a plurality of cultivation beds 50 through branches.

[0158] In this embodiment, a single water supply valve 496 is branched to form an upper fitting 496a and a lower fitting 496b, and an upper water supply pipe 498 and a lower water supply pipe 497 are respectively coupled to the upper fitting 496a and the lower fitting 496b, thereby providing a structure capable of independently supplying water to the upper and lower cultivation beds 50, 50. Therefore, different water supply environments can be formed in the upper and lower cultivation beds 50, 50, and appropriate amounts of water can be supplied to the upper and lower cultivation beds 50, 50, respectively.

[0159] The water tank 40 can be arranged in front of the water supply tank 49, and the water tank switch 493 can be pressed when it is fully pushed in. In addition, the upper surface of the water tank 40 and the upper surface of the water supply tank 49 can be formed at the same height as the upper surface of the step portion 147 or slightly lower than the height of the upper surface of the step portion 147.

[0160] Therefore, when viewed from the front, the area below the lower cultivation bed 50 can be completely shielded by the water tank 40. In addition, by placing the upper surfaces of the lower cultivation bed 50 and the water tank 40 in close proximity, the capacity of the water tank 40 is ensured, and the water tank 40 and the lower cultivation bed 50 can have a sense of unity.

[0161] In particular, the front surface of the water tank 40 and the front surface of the lower cultivation bed 50 may be located on the same plane and arranged up and down in a state close to each other, thereby providing a more integrated feeling when viewed from the front.

[0162] Hereinafter, the detailed structure of the water tank 40 will be described in detail with reference to the accompanying drawings.

[0163] Figure 8 : is a perspective view of the water tank with the lid opened. Figure 9 It is an exploded perspective view of the water tank.

[0164] The water tank 40 may include a water tank body 41 having an open upper surface for containing water, and a water tank cover 42 for opening and closing the upper surface of the water tank body 41. The water tank cover 42 is rotatably coupled to the water tank body 41 and can be opened and closed by rotating the water tank cover 42. To this end, a cover coupling groove 426 and a cover coupling protrusion 413 may be formed at the upper end of the water tank body 41 and at one side end of the water tank cover 42.

[0165] Furthermore, at least a portion of the water tank cover 42 is transparent so that the interior of the water tank cover 42 can be checked even when the water tank cover 42 is closed. The water tank cover 42 may include a cover frame 422 having an opening formed in the center and a cover plate 421 on the upper surface of the cover frame 422 that covers the opening. The cover plate 421 is transparent so that the water level inside the water tank body 41 can be checked.

[0166] The cover engaging groove 426 may be formed at one end of the cover frame 422, and a restricting protrusion 427 may be formed on the opposite side of the cover engaging groove 426 to keep the water tank cover 42 closed. When the water tank cover 42 is closed, the restricting protrusion 427 may be inserted into a restricting groove (not shown) formed at the upper end of the water tank body 41 and restricted.

[0167] A rubber or silicone gasket groove 424 may be formed along the outer periphery of the lower surface of the cover frame 422. A cover gasket 423 may be installed in the gasket groove 424. When the water tank cover 42 is closed, the cover gasket 423 seals the water tank 40 by contacting the upper end of the water tank body 41.

[0168] The cover gasket 423 is formed along the outer periphery of the cover frame 422. Furthermore, the cover gasket 423 includes a gasket mounting portion 423a that is inserted into and secured in the gasket groove 424, and a sealing portion 423b that extends downward from one side of the gasket mounting portion 423a. The sealing portion 423b can be inserted into the upper surface of the opening of the water tank body 41 and tightly adhere to the inner side surface of the water tank body 41, thereby completely sealing the interior of the water tank body 41.

[0169] Furthermore, a frame rib 425 for pressing the sealing portion 423b may be formed on the lower surface of the cover frame 422. The frame rib 425 may extend downward from the lower surface of the cover frame 422 corresponding to the sealing portion 423b and contact the upper end of the sealing portion 423b. Therefore, when the water tank lid 42 is closed, the frame rib 425 presses the sealing portion 423b, thereby maintaining a tight fit between the sealing portion 423b and the water tank body 41.

[0170] In addition, a suction pipe 412 may be provided inside the water tank body 41. The suction pipe 412 may be provided at a position corresponding to the connecting pipe 492 and may pass through the rear surface of the water tank body 41 and extend to the inside of the water tank body 41.

[0171] Specifically, the suction pipe 412 may be composed of a horizontal portion 412a and a vertical portion 412b. One end of the horizontal portion 412a may extend rearward through the rear surface of the water tank body 41, i.e., the surface facing the front surface of the water supply tank 49. The horizontal portion 412a may be sized to fit within the inner side of the connecting pipe 492.

[0172] The vertical portion 412b is located inside the water tank body 41 and can extend vertically downward from the end of the horizontal portion 412a that passes through the rear surface of the water tank body 41. The vertical portion 412b can extend to a position close to the bottom surface of the water tank body 41. Therefore, water contained inside the water tank body 41 can flow into the connecting pipe 492 through the vertical portion 412b and the horizontal portion 412a.

[0173] Furthermore, a water tank handle 411 protruding forward may be provided at the upper front end of the water tank body 41. The water tank handle 411 extends from the left end to the right end of the water tank body 41 and has an open lower surface, allowing a user to insert their hand and push and pull the water tank 40 to be pulled out or pushed in. Furthermore, the front surface of the water tank handle 411 may be flush with the front surface of the cultivation bed 50 and formed of the same or similar material to provide a sense of integration.

[0174] A water tank fixing portion 415 may be formed at the lower end of the rear surface of the water tank body 41. The water tank fixing portion 415 may be provided in pairs on the left and right sides, and when the water tank 40 is fully pushed in, may be configured to engage with a protrusion provided on one side of the interior of the housing 10.

[0175] The water tank fixing portion 415 may include a pair of ribs extending rearward, wherein a distance between ends of the ribs is narrower than the protrusion, and a distance between middle portions of the ribs may have a size corresponding to that of the protrusion.

[0176] When the water tank 40 is fully inserted, the inlet of the water tank fixing portion 415 expands and elastically deforms. Furthermore, the protrusion can be pressed into the recessed middle portion of the water tank fixing portion 415. As described above, when the water tank 40 is fully inserted, the pressing of the protrusion into the water tank fixing portion 415 can be recognized by sound or feeling.

[0177] Therefore, the water tank 40 is arranged at the rear, so that the connection status of the suction pipe 412 and the connecting pipe 492, which is invisible when the water tank 40 is pushed in, can be identified through the connection of the water tank fixing part 415, and the water tank 40 can be kept in an accurate and firmly pushed-in state.

[0178] Rail mounting portions 414 may be formed at the lower ends of the left and right side surfaces of the water tank body 41. The rail mounting portions 414 extend from the front end to the rear end of the water tank body 41 and provide a space 414a for mounting the water tank rail 43 for pulling out / pushing in the water tank 40.

[0179] The rail mounting portion 414 may be open downward, so that the water tank body 41 may be combined with the water tank rails 43 as a structure disposed from above to below the water tank rails 43 on both sides.

[0180] The water tank rail 43 has a rail structure that can be pulled out / pushed in multiple layers and can have a compact structure. In detail, the water tank rail 43 can be composed of an upper rail 431, a lower rail 432, and an intermediate rail 433 connecting the upper rail 431 and the lower rail 432. The upper rail 431 can be inserted and fixed to the rail mounting portion 414. In addition, a rail bracket 434 is provided on the lower rail 432, and the rail bracket 434 can be fixedly mounted on the two side walls of the cultivation space 11. In addition, the intermediate rail 433 is combined with the upper rail 431 and the lower rail 432 in a slidable manner and connects the upper rail 431 and the lower rail 432. Therefore, when the water tank handle 411 is grasped and pulled or pushed forward, the water tank rail 43 can slide and pull out or push in the water tank 40.

[0181] In addition, the water tank body 41 may be configured to be easily mounted on and detached from the water tank rail 43 without requiring assembly and detachment of additional tools or coupling members for cleaning or management.

[0182] Figure 10 yes Figure 8 Magnified view of part A. Figure 11 It is along Figure 8 The 11-11' line cutaway perspective view. In addition, Figure 12 It is along Figure 8 A three-dimensional view taken along the 12-12' line.

[0183] As shown in the figure, the water tank rail 43 is inserted into the inner side of the rail mounting portion 414. In addition, the rear end of the rail mounting portion 414 is inserted into the rail limiting portion 435 protruding from the upper surface of the upper rail 431, so that the rear end of the water tank body 41 can be fixed to the water tank rail 43.

[0184] The rail restriction portion 435 can be formed by cutting a portion of the upper rail 431. In addition, when the rear end of the rail mounting portion 414 is bent upward and forward and moved backward and inserted, the rear half of the water tank rail 43 and the rail mounting portion 414 can restrict each other.

[0185] Furthermore, a rail lock 44 for securing the front end of the water tank rail 43 to the rail mounting portion 414 and a lock fixing member 45 for mounting the rail lock 44 may be provided at the front end of the water tank rail 43. The rail lock 44 is coupled to the water tank rail 43 and is configured to be selectively coupled to and separated from the water tank body 41 according to user operation. Therefore, the user can couple or separate the water tank body 41 and the water tank rail 43 by operating the rail lock 44.

[0186] More specifically, the lock fixing member 45 is inserted into the front end of the opening of the upper rail 431. In addition, the bolt 453 passing through the bolt hole 435 formed on the upper surface of the upper rail 431 is fastened to the lock fixing member 45, thereby fixing the lock fixing member 45 to the inner side of the upper rail 431.

[0187] A pair of fastening grooves 452 may be formed in the lock fixing member 45, and the bolts 453 are fastened to the pair of fastening grooves 452. The pair of bolts 453 can not only fix the lock fixing member 45, but also fix the track lock 44 to the upper surface of the upper track 431.

[0188] In detail, Figure 12 As shown, the rear bolt 453 is fastened to the fastening groove 452 formed on the rear side of the lock fixing member 45 and passing through the rear bolt hole 436, thereby coupling the upper rail 431 to the lock fixing member 45. In addition, the front bolt 453 is fastened to the fastening groove 452 formed on the front side of the lock fixing member 45 after passing through the bolt hole 436 in front of the track lock 44 and the upper rail 431, thereby maintaining the track lock, upper rail 431, and lock fixing member 45 in a coupled state.

[0189] The track lock 44 extends forward from the upper surface of the upper rail 431 and may extend forward to a point further forward than the front end of the upper rail 431. Furthermore, a lock restricting portion 442 may protrude from the lower surface of the track lock 44 in front of the upper rail 431. After extending downward, the lock restricting portion 442 may protrude toward the front surface of the lock fixing member 45.

[0190] The front end of the lock fixing member 45 can be exposed through the front surface of the opened upper rail 431. In addition, a lock limiting groove 454 is formed on the front surface of the lock fixing member 45, and the lock limiting portion 442 is selectively inserted into the lock limiting groove 454, thereby fixing the track lock 44.

[0191] A lock limiting protrusion 443 protruding laterally may be formed on the side of the lock limiting portion 442. Furthermore, the lock limiting protrusion 443 may be inserted into the mounting portion opening 414b opened on the side surface of the rail mounting portion 414. That is, when the lock limiting protrusion 443 is inserted into the mounting portion opening 414b, the front end of the water tank rail 43, i.e., the front end of the upper rail 431, may be fixed to the inner side of the rail mounting portion 414. As described above, the water tank rail 43 may be in a state where the rear end and the front end are respectively restricted and fixed by the rail mounting portion 414. In particular, when the lock limiting protrusion 443 is inserted into the mounting portion opening 414b, the lock limiting portion 442 is locked and restricted in the lock limiting groove 454, thereby making it difficult for the water tank rail 43 to separate from the rail mounting portion 414.

[0192] The rail lock 44 can be formed of a plastic material and can be configured to have a predetermined elasticity. Furthermore, an inclined surface 443a can be formed on the upper portion of the lock limiting protrusion 443. Therefore, when a user lifts the handle 441 of the rail lock 44, the lock limiting protrusion 443 can be disengaged from the mounting portion opening 414b via the inclined surface 443a, allowing the water tank rail 43 to be separated from the rail mounting portion 414. In this state, when the water tank body 41 is pulled forward, the rear half of the water tank rail 43 can also be separated from the water tank body 41.

[0193] As described above, the water tank 40 can be separated from the water tank rail 43, thereby being cleaned or repaired and easier to manage. In addition, the water tank rail 43 can be re-connected to the rail mounting portion 414. In the state where the water tank rail 43 is connected to the rail mounting portion 414, the water tank 40 can be pulled out / pushed in.

[0194] In addition, the water in the water tank 40 can be supplied to the cultivating bed 50 through the water pump 494 and the water supply valve 496 .

[0195] Figure 13 : is a diagram showing the arrangement of the water supply pipe inside the main body. Figure 14 It is shown in Figure 13 The picture shows the state of the lower cultivation bed installed.

[0196] As shown in the figure, an upper water supply pipe 498 and a lower water supply pipe 497 can be connected to the water supply valve 496 to supply water to the upper cultivation bed 50 and the lower cultivation bed 50, respectively. The upper water supply pipe 498 and the lower water supply pipe 497 are independently arranged and extend toward the rear end of the cultivation bed 50, thereby supplying water required for growing plants.

[0197] Specifically, the ends of the upper water supply pipe 498 and the lower water supply pipe 497 can be connected to the water supply valve 496 provided inside the water supply tank 49. The water supply valve 496 includes the upper fitting 496a and the lower fitting 496b, which are independently constructed. The upper water supply pipe 498 can be connected to the upper fitting 496a, and the lower water supply pipe 497 can be connected to the lower fitting 496b.

[0198] The connecting pipe 492, water pump 494, flow meter 495, and water supply valve 496 can be arranged in a continuous manner in the horizontal direction to ensure space in the water tank 40 and facilitate the configuration of the flow path. The water supply valve 496 can be located at the outermost side of the water supply tank 49, and the upper water supply pipe 498 and the lower water supply pipe 497 can also be arranged to pass through the side wall of the water supply tank 49.

[0199] In addition, a water supply pipe guide 103 may be formed on the side wall of the housing 10 near the water supply valve 496. The water supply pipe guide 103 may be formed to be recessed or opened from one of the left and right side walls of the storage space, i.e., the inner plate 141.

[0200] The water supply pipe guide portion 103 may extend upward from the side near the water supply valve 496 and then extend rearward along the upper end of the step portion 147. Therefore, the upper water supply pipe 498 and the lower water supply pipe 497 connected to the water supply valve 496 may be guided along the side wall of the cultivation space 11 to the rear wall of the cultivation space 11, that is, the position of the inner rear plate 146.

[0201] Pull-out / push-in guides 56 are installed on both sides of the cultivation space 11 to facilitate installation of the lower cultivation bed 50. These pull-out / push-in guides 56 are configured to shield the front-to-rear portion of the water supply pipe guide 103. Therefore, when the lower cultivation bed 50 is installed, the water supply pipe guide 103 is not exposed to the outside, further enhancing the appearance.

[0202] The upper water supply pipe 498 and the lower water supply pipe 497 are located at the corner region between the rear surface and the side surface of the cultivation space 11. Specifically, the upper water supply pipe 498 and the lower water supply pipe 497 can be bent upward and extend from the corner region where the inner rear plate 146 and the inner side plate 141 are adjacent to each other. The upper water supply pipe 498 extends to the water supply portion 524 of the upper cultivation bed 50, and the lower water supply pipe 497 extends to the water supply portion 524 of the lower cultivation bed 50, thereby enabling water to be supplied to both the upper cultivation bed 50 and the lower cultivation bed 50, respectively.

[0203] The water supply pipes 497 and 498 are guided along the inner side of the cultivation space 11 and can be easily arranged, and can extend upward along the corner area of ​​the cultivation space 11, thereby minimizing interference between internal structures.

[0204] In particular, the water supply pipes 497 and 498 are positioned away from the sides of the evaporator so as not to interfere with the evaporator 31 mounted on the front surface of the inner rear panel 146. This prevents the water flowing along the water supply pipes 497 and 498 from freezing or excessively cooling due to the cold air from the evaporator. Furthermore, the water supply pipes 497 and 498 are designed to prevent interference with the evaporator 31 and other internal structures of the housing 10, making the placement process easier.

[0205] The water supply pipes 497 and 498 can be formed of metal pipes such as stainless steel. Therefore, the sanitation of the water supply pipes 497 and 498 can be managed and a firm shape can be maintained, thereby preventing the flow path from being deformed or bent, and ensuring reliable water supply.

[0206] The water supply pipes 497 and 498 have a structure that extends upward through the water supply portion 524 and then bends toward the water supply portion 524. The outlets of the water supply pipes 497 and 498 may be formed to extend from above near the water supply portion 524 toward the inside of the water supply portion 524.

[0207] In addition, a water supply pipe holder 48 may be installed at a position corresponding to the water supply portion 524. The water supply pipe holder 48 may be formed of plastic or rubber and may be fixed to the inner rear plate 146. Furthermore, by fixing the water supply pipes 497 and 498, the outlets of the water supply pipes 497 and 498 may always face the inside of the water supply portion 524 at a predetermined height.

[0208] Specifically, the water supply pipe holder 48 can be formed in a semicircular shape, and a circular portion 481 can be formed along the circular outer circumference of the water supply pipe holder 48, through which the water supply pipes 497 and 498 pass. The circular portion 481 can be formed to correspond to the bend of the water supply pipes 497 and 498, and its rear surface can be open and concave to accommodate the bend of the water supply pipes 497 and 498. Furthermore, the outlets of the water supply pipes 497 and 498 can extend further downward through the circular portion 481, closer to the water supply unit 524.

[0209] Furthermore, a retainer fixing hole 482 may be formed in the center of the water supply pipe retainer 48, and a bolt may be fastened to the retainer fixing hole 482. The bolt passes through the retainer fixing hole 482 and is fastened to the inner rear plate 146, thereby keeping the water supply pipe retainer 48 fixed at a set position.

[0210] In addition, when the blower assembly 80 is installed on the inner rear plate 146, the water supply pipes 497, 498 and the water supply pipe holder 480 can be shielded, so that when the plant cultivation device 1 is normally used, the water supply pipes 497, 498 and the water supply pipe holder 480 can be not exposed to the outside.

[0211] The structure for supplying water to the upper cultivation bed 50 and the lower cultivation bed 50 differs only in their upper and lower positions, and the other structures are the same. In addition, the water supplied to the water supply part 524 can be stored in the water collection part 523 on the inner side of the cultivation bed 50, thereby supplying moisture to the seed package 90 installed on the cultivation bed 50.

[0212] [Growing bed structure]

[0213] Hereinafter, the structure of the cultivation bed 50 will be described in detail with reference to the accompanying drawings. Although a plurality of the cultivation beds 50 are provided, all of the cultivation beds 50 have the same structure except for the different installation positions, so only one cultivation bed 50 will be described.

[0214] Figure 15 It is a perspective view of a cultivation bed which is one structure of the plant cultivation device. Figure 16 This is an exploded perspective view of the cultivation bed as viewed from above. Figure 17 This is an exploded perspective view of the cultivation bed as viewed from below. Figure 18 It is a three-dimensional diagram of the lower cultivation bed.

[0215] As shown in the drawings, the cultivation bed 50 may be formed in a quadrilateral plate shape that divides the housing 10 , and may be placed on pull-out / push-in guides 56 installed on both sides of the housing 10 in a pull-out / push-in manner.

[0216] The cultivation bed 50 may include a lower cultivation bed 52 forming a lower structure for integral water supply. The lower cultivation bed 52 forms the overall shape of the cultivation bed 50 and may be formed of a plastic material.

[0217] Cultivation bed flanges 522 extending laterally are formed at both side ends of the lower cultivation bed 52. The cultivation bed edge 53 can be combined with the lower surface of the cultivation bed flanges 522.

[0218] A recessed portion 521 is formed in the lower cultivation bed 52, and the upper cultivation bed 51 can be placed in the recessed portion 521. The recessed portion 521 can be formed in a shape corresponding to the upper cultivation bed 51. In other words, the recessed portion 521 is formed at a position corresponding to the package placement portion 511 formed in the upper cultivation bed 51 and can be recessed in a shape corresponding to the package placement portion 511 to overlap the package placement portion 511.

[0219] Furthermore, a water collecting portion 523 may be formed in the lower cultivating bed 52 to store water supplied by the water supply portion 524. The water stored in the water collecting portion 523 may be continuously supplied to the seed package 90.

[0220] Specifically, the water collection portion 523 is located in the center of the lower cultivation bed 52 and may extend from the left end to the right end of the lower cultivation bed 52. Furthermore, the water collection portion 523 is recessed further downward than the recessed portion 521, thereby allowing water to be stored only within the water collection portion 523. The water collection portion 523 may be formed to have a predetermined width in the front-to-back direction to fully accommodate the seating opening 512 of the upper cultivation bed 51.

[0221] Furthermore, a water supply portion 524 may be formed at a corner at the rear end of the lower cultivation bed 52. The water supply portion 524 is formed to protrude slightly rearward from the lower cultivation bed 50 and has an open and concave upper surface, thereby allowing water to be supplied from the water supply pipes 497 and 498 located above. Furthermore, the water supply portion 524 is located above the water collection portion 523, allowing water in the water supply portion 524 to flow naturally into the water collection portion 523.

[0222] A water guide portion 525 may be formed recessed between the water supply portion 524 and the water collection portion 523. The water supply portion 524 and the water collection portion 523 may be connected by the water guide portion 525, and water supplied to the water supply portion 524 may flow along the water guide portion 525 to the water collection portion 523. Furthermore, the water guide portion 525 may be formed to have a slope that gradually decreases as it moves from the water supply portion 524 toward the water collection portion 523. Therefore, when water is supplied to the water supply portion 524, it may naturally flow along the water guide portion 525 to the water collection portion 523.

[0223] A water sensor 526 capable of sensing the water level may be provided in the water collecting portion 523. Therefore, when water needs to be supplied to the growing plants, the water level or presence of water in the water collecting portion 523 is confirmed by the water sensor 526, and then a decision is made as to whether water should be supplied from the water tank 40 to the growing bed 50.

[0224] The water sensing members 526 may be provided in pairs and spaced apart from each other. The water sensing members 526 may be disposed on both sides of the center of the water collecting portion 523 to facilitate sensing of moisture and easy placement of wires 544 for supplying power to the water sensing members 526 .

[0225] A recessed portion 521 formed in the center of the lower cultivation bed 52 has recessed, respectively, left and right front ends formed therein for mounting the water sensing member 526. The sensing member mounting portion 527 can be recessed in the same shape as the water sensing member 526 and can be elongated in the vertical direction. Furthermore, a slot 527a can be formed at the upper end of the sensing member mounting portion 527, through which the water sensing member 526 passes.

[0226] The water sensing member 526 is formed of a conductive metal material and may be formed into a curved plate shape so as to pass through the slot 527a and be mounted on the sensing member mounting portion 527. The lower end of the vertically extending portion 526a of the water sensing member 526 may extend to the bottom surface of the water collecting portion 523. Furthermore, the water sensing member 526 may be configured such that a horizontally extending portion 526b extending horizontally from the lower cultivation bed 52 has a rear end that passes through the slot 527a and is exposed on the lower surface of the lower cultivation bed 52. Furthermore, the horizontally extending portion 526b exposed on the lower surface of the lower cultivation bed 52 may be fixed to the lower cultivation bed 52 via bolts.

[0227] Furthermore, the power supply can be supplied to the pair of water sensing members 526, and when water is present in the water collecting portion 523, electricity can flow between the pair of water sensing members 526. Furthermore, when water is absent from the water collecting portion 523, electricity is not supplied between the pair of water sensing members 526. In this case, water can be supplied to the water collecting portion 523 by driving the water pump 494. In other words, the pair of water sensing members 526 function as electrodes inside the water collecting portion 523, and the presence of electricity between the pair of water sensing members 526 can determine whether water is being supplied from the water tank 40.

[0228] Cultivation bed edges 53 may be formed on the left and right sides of the lower cultivation bed 52, respectively, and are positioned on the pull-out / pushing guide 56 to guide the pulling out / pushing in of the cultivation bed 50. The cultivation bed edges 53 may be formed separately and then joined to both ends of the lower cultivation bed 52. Of course, the cultivation bed edges 53 may be formed integrally when the lower cultivation bed 52 is formed.

[0229] Furthermore, a cultivation bed handle 520 may be formed on the front surface of the lower cultivation bed 52. The cultivation bed handle 520 may have a recessed lower surface so that a user can grasp it when pulling out or pushing in the cultivation bed 50. Furthermore, the front surface of the cultivation bed handle 520 may be formed of the same material or material having the same texture as the water tank handle 411, thereby creating a sense of unity.

[0230] The upper cultivation bed 51 is placed on the upper surface of the lower cultivation bed 52 and may form the upper surface appearance of the cultivation bed 50. The upper cultivation bed 51 is formed of a metal material such as stainless steel to enable neat and hygienic appearance.

[0231] The upper cultivation bed 51 is sized to cover the recessed portion 521 of the lower cultivation bed 52 and may be formed in a plate shape. Furthermore, the upper cultivation bed 51 may be formed with multiple package placement portions 511, upon which the seed packages 90 are placed. Each package placement portion 511 is shaped to correspond to the shape of the seed packages 90 and may be arranged in a continuous pattern. Thus, multiple seed packages 90 may be placed on the upper cultivation bed 51.

[0232] The package placement portion 511 may be provided with a plurality of packages in the front and rear halves, with the center being the reference point, and each package placement portion may be formed to be of the same size. Furthermore, a placement opening 512 may be formed in the package placement portion 511. The placement opening 512 allows a portion of the seed package to pass through and come into contact with the water in the lower cultivation bed 52.

[0233] At least one placement opening 512 may be formed in each package placement portion 511 . One or more placement openings 512 may be formed depending on the structure of the seed package 90 . Furthermore, the placement opening 512 may be located in a region corresponding to the water collecting portion 523 .

[0234] Specifically, when the upper cultivating bed 51 is placed on the lower cultivating bed 52 , the placement opening 512 may be located on the water collecting portion 523 , so that the water stored in the water collecting portion 523 is supplied to the seed package 90 through the placement opening 512 .

[0235] In this embodiment, the water collecting portion 523 can be arranged in the center of the lower cultivation bed 52 along the horizontal direction. Therefore, it can be formed near the center of the upper cultivation bed 51 so as to be located above the placement portion opening 512 and the inner side of the water collecting portion 523. The position of the placement portion opening 512 can have various structures according to the configuration and shape of the water collecting portion 523.

[0236] A cultivation bed support 54 may be provided on the lower surface of the lower cultivation bed 52. The cultivation bed support 54 may be located in the center of the rear half of the lower cultivation bed 52. Furthermore, the cultivation bed support 54 may be positioned so as to shield the water sensing member 526 exposed to the lower surface of the lower cultivation bed 52 from below. Furthermore, the cultivation bed support 54 may be fixedly mounted to the bottom cover 55.

[0237] The bottom cover 55 is formed in a plate shape and is bent to have a lower surface and a rear surface, thereby shielding the rear half of the lower cultivation bed 52 from below. In addition, the cultivation bed support 54 may be mounted on the bottom case 19.

[0238] The bottom cover 55 can be fixedly mounted on the inner housing 140, and thus remains fixed even when the cultivation bed 50 is pulled out or pushed in. Furthermore, when the lower cultivation bed 52 is pushed in, power can be supplied to the water sensing member 526. Conversely, when the lower cultivation bed 52 is pulled out, power cannot be supplied to the water sensing member 526.

[0239] Figure 19 It is an exploded perspective view of a seed package placed on the cultivation bed. Figure 20 : is a top view of a port as a structure of the seed package. In addition, Figure 21 It is a cross-sectional view showing a state where the seed package is placed on the cultivation bed.

[0240] As shown in the figure, the seed package 90 placed on the upper cultivation bed 51 can accommodate a culture medium 93 containing seeds and nutrient solution in a port 91 having a shape corresponding to the package placement portion 511. The seed package 90 can be configured to contain a nutrient solution suitable for the plant being cultivated.

[0241] The seed packages 90 may be composed of plant species that can be cultivated by the plant cultivation device 1. Of course, the seed packages 90 composed of various plants all have the same size and can be sized to fit within the package placement portion 511. Thus, a user selects the seed package 90 of the plant they wish to cultivate and places it in a desired location on the cultivation bed 50, thereby beginning cultivation.

[0242] The port 91 of the seed package 90 serves as a container forming a space 911 for accommodating the seeds and culture medium. Its upper surface is open and has a shape and size corresponding to the package receiving portion 511. Furthermore, a port protrusion 912 having a shape corresponding to the receiving portion opening 512 may be formed on the bottom surface of the port 91. When the seed package 90 is placed in the package receiving portion 511, the port protrusion 912 is formed so as to pass through the receiving portion opening 512.

[0243] Furthermore, the lower end of the port protrusion 912 may extend to a position that contacts or approaches the bottom surface of the water collecting portion 523. Furthermore, a water inlet 913 may be formed on the bottom surface of the port protrusion 912. Furthermore, a water absorbent sheet 92 for absorbing water may be provided inside the port protrusion 912. The water absorbent sheet 92 may be formed from a variety of water-absorbing materials, such as non-woven fabric, felt, or sponge.

[0244] Therefore, if Figure 21 As shown, when the seed package 90 is placed in the package placement portion 511, the port protrusion 912 is located inside the water collection portion 523 where water is stored. In addition, the water of the water collection portion 523 flows in through the water inlet 913 of the port protrusion 912, and can be supplied to the inside of the port 91 through the absorbent sheet 92. The water supplied to the inside of the port 91 can be mixed with the nutrient solution of the culture medium 93 and supplied to the seeds or plants, so that the seeds or plants can be actively grown. In addition, a package cover 94 is provided on the inner upper surface of the port 91, that is, the upper surface of the culture medium 93, so that the culture medium 93 and the seeds inside the port 91 can be protected.

[0245] The culture medium 93 contains the nutrient solution necessary for plant growth and is designed to maintain plant growth at an appropriate rate simply by supplying water, eliminating the need for additional components. Furthermore, the nutrient solution resides solely within the box, and within the plant cultivation device 1, water is supplied only to the cultivation bed 50. This prevents contamination of the plant cultivation device 1, particularly the water tank 40 and water supply pipes 497 and 498, by the nutrient solution. This structure ensures that the interior of the plant cultivation device 1 remains clean and maintains a consistent supply of nutrients, even when cultivating multiple plant species simultaneously.

[0246] The cultivation bed 50 is configured to be pulled out and pushed in, making it easier to place the seed package 90 and manage and collect the plants growing in the cultivation bed 50. Furthermore, when the cultivation bed 50 is pulled out, the water supply must be stopped. When the cultivation bed 50 is pushed in, water supply must be resumed after the water level is confirmed by the water sensor 526. To this end, the cultivation bed 50 is configured to selectively supply power to the water sensor 526 when the cultivation bed 50 is pulled out and pushed in.

[0247] Next, a structure for supplying power to the water sensing member 526 will be described in detail with reference to the accompanying drawings.

[0248] Figure 22 It is a perspective view of a cultivation bed support as one structure of the cultivation bed. Figure 23 This is a bottom view of the cultivation bed as viewed from below. Figure 24 It is along Figure 23 The 24-24' line cutaway perspective view. In addition, Figure 25 It is a cutaway perspective view showing the lower cultivation bed in a pulled-out state.

[0249] As shown in the figure, the cultivation bed 50, when arranged inside the cultivation space 11, has a structure that is pulled out and pushed in by pull-out / pushing guides 56 arranged on both sides of the cultivation bed 50. At this time, the bottom cover 55, which forms the lower surface of the rear half of the cultivation bed 50, and the cultivation bed support 54 of the bottom cover 55 remain fixedly mounted inside the cultivation space 11, and the upper cultivation bed 51 placed on the lower cultivation bed 52 and the lower cultivation bed 52 are pulled out and pushed in.

[0250] Furthermore, as the lower cultivation bed 52 moves forward and backward, the water sensing member 526 can selectively contact or separate from the power supply terminal 543 of the cultivation bed support 54. Thus, when the lower cultivation bed 52 is fully inserted, power is supplied to the water sensing member 526, activating water sensing. Conversely, when the lower cultivation bed 52 is extended, power is disabled. Water can be supplied to the lower cultivation bed 52 based on the state of the water sensing member 526 and the state sensed by the water sensing member 526.

[0251] Specifically, the bottom cover 55 is formed into a metal plate corresponding to the lateral width of the cultivation bed 50, and its ends can be fixedly mounted to the inner shell 140. Furthermore, when installed, the bottom cover 55 can shield a portion of the lower surface and the rear surface of the lower cultivation bed 52. The bottom cover 55 can include a vertically curved lower surface portion 552 and a rear surface portion 551. The lower surface portion 552 can shield the rear half of the lower surface of the lower cultivation bed 52, and the rear surface portion 551 can shield the rear surface of the lower cultivation bed 52.

[0252] The rear surface portion 551 extends upward and may extend to the lower end of the blower assembly 80 located above. The extended upper end of the rear surface portion 551 may be slightly spaced from the lower end of the blower assembly 80, allowing air to flow through the upper end of the rear surface portion 551 and the lower end of the blower assembly 80 toward the interior of the blower assembly 80. Furthermore, when the lower cultivation bed 52 is extended, the rear surface portion 551 may shield the evaporator 31 located at the rear from exposure. Furthermore, the rear surface portion 551 is positioned near the lower end of the blower assembly 80, thereby not only preventing the evaporator 31 from being exposed to the outside but also shielding the water supply pipes 497, 498 and the water supply pipe retainer 48 located at the rear surface of the cultivation space 11, thereby preventing other structures located on the inner rear panel 146 from being exposed.

[0253] Furthermore, a rear surface opening 553 may be formed on a side of the rear surface portion 551 that corresponds to the water supply portion 524. The rear surface opening 553 may have a size corresponding to that of the water supply portion 524. Furthermore, when the cultivation bed 50 is pushed in, the water supply portion 524 may be inserted through the rear surface opening 553. Furthermore, the actual water supply to the water supply portion 524 may be performed in the space behind the rear surface portion 551. Therefore, the water supply pipes 497 and 498 can be prevented from being exposed, and water supplied to the cultivation bed 50 can be prevented from scattering near the cultivation bed 50.

[0254] The lower surface portion 552 can extend from the rear end of the lower cultivation bed 52 to the water collecting portion 523 and can extend to a position that at least partially covers the water sensing member 526. Furthermore, a cultivation bed support 54 can be mounted in the center of the lower surface portion 552. The cultivation bed support 54 is located between the lower cultivation bed 52 and the bottom cover 55 and can be mounted with a power supply terminal that selectively contacts the water sensing member 526.

[0255] Specifically, the cultivation bed support 54 may be injection-molded from a plastic material and formed into a plate shape and mounted in the center of the lower surface portion 552 of the bottom cover 55. Furthermore, the upper surface of the cultivation bed support 54 may be arranged to face the lower surface of the lower cultivation bed 52.

[0256] A pair of upwardly projecting terminal mounting portions 541 may be provided on either side of the upper surface of the cultivation bed support 54. These terminal mounting portions 541 may be located corresponding to the horizontal extension portion 526b. That is, when the lower cultivation bed 52 is inserted, the terminal mounting portions 541 may be located vertically below the horizontal extension portion 526b. The terminal mounting portions 541 may extend in a long, forward-backward direction.

[0257] In addition, a terminal hole 541a is formed on the upper surface of the terminal mounting portion 541, and a portion of the power terminal 543 can be exposed through the terminal hole 541a. The power terminal 543 can be fixedly installed in the space inside the terminal mounting portion 541. The power terminal 543 may include a contact portion 543b that is tilted and bent forward and backward and a fixing portion 543a that extends from one side of the contact portion 543b and is fixed to the inner side of the terminal mounting portion 541. The fixing portion 543a is fixed to the terminal mounting portion 541 using a bolt tightened from below, and the contact portion 543b is configured to protrude to the outside through the terminal hole 541a. In addition, the end of the fixing portion 543a can be connected to the electric wire 544 flowing into the inner side of the terminal mounting portion 541 and supply power.

[0258] A wire guide 542 may be formed between the pair of terminal mounting portions 541. The wire guide 542 is recessed into the lower surface of the cultivation bed support 54 and, when the cultivation bed support 54 is coupled to the bottom cover 55, provides space for accommodating the wires 544. Furthermore, the wire guide 542 is formed to connect the terminal mounting portions 541 on both sides and may be configured to extend from the center of the cultivation bed support 54 to the rear end of the cultivation bed support 54. Therefore, the wires 544 connected to the power terminals 543 arranged on both sides can extend along the wire guide 542 to the rear end of the cultivation bed support 54.

[0259] The rear end of the wire guide portion 542 further protrudes to form a wire outlet portion 542a. When the cultivation bed bracket 54 is installed on the bottom cover 55, the wire outlet portion 542a passes through the rear surface portion 551, and the wire 544 can be connected to the connectors 111, 112, and 113 on the rear wall of the cultivation space 11 without being exposed to the outside.

[0260] In addition, if Figure 24 As shown, when the lower cultivation bed 52 is fully pushed into place, the water sensing member 526 and the power terminal 543 may be in contact with each other. At this point, the horizontal extension 526b of the water sensing member 526 is in contact with the contact portion 543b of the power terminal 543, and the contact portion 543b may remain in contact with the water sensing member 526 in a pressurized state.

[0261] In the above state, power can be supplied to the water sensing members 526, thereby activating their operation. Therefore, when water is stored in the water collection portion 523, the water sensing members 526 on both sides can be energized, deactivating the water pump 494. Conversely, when power is supplied to the water sensing members 526 and the water collection portion 523 is empty, the water sensing members 526 on both sides are deenergized, and water can be supplied to the cultivation bed 50 by driving the water pump 494 and the water supply valve 496.

[0262] In addition, if Figure 25 As shown, when a user performs a pulling-out operation on the cultivating bed 50 , the lower cultivating bed 52 is pulled out while the cultivating bed support 54 and the bottom cover 55 are fixed.

[0263] The moment the lower cultivation bed 52 is pulled out, the power terminal 543 is disconnected from the water sensing member 526, shutting off the power supply to the water sensing member 526. Specifically, the power supply to the water sensing member 526 is interrupted the moment the lower cultivation bed 52 is pulled out. In this state, the water pump 494 and / or the water supply valve 496 are forcibly stopped, rendering them inoperative. While operating the water pump 494 or opening the water supply valve 496 with the cultivation bed 50 pulled out could potentially cause water supplied through the water supply pipes 497 and 498 to not reach the cultivation bed 50 and spill, the water pump 494 or the water supply valve 496 can be disabled by sensing the pulled-out state of the cultivation bed 50 as described above.

[0264] Furthermore, by not configuring additional wires on the lower cultivation bed 52 on which the water sensing component 526 is configured and configuring the wires 544 on the fixed bottom cover 55, a structure can be provided in which no interference occurs with the wires 544 when the lower cultivation bed 52 is pulled out / pushed in and the lower cultivation bed 52 can be smoothly pulled out / pushed in.

[0265] Both ends of the cultivation bed 50 are supported by the pull-out / push-in guides 56 provided on both side surfaces inside the housing 10. The lower cultivation bed 52 slides along the pull-out / push-in guides 56 and is guided to be pulled out / pushed in. The structure of the pull-out / push-in guides 56 and the pull-out / push-in structure of the cultivation bed 50 will be described below with reference to the accompanying drawings.

[0266] Figure 26 It is a perspective view of a pull-out / push-in guide for pulling out / pushing in the cultivation bed. Figure 27 : is a diagram showing a state where the cultivation bed is pushed in. Figure 28 This is a diagram showing a state where the cultivation bed is pulled out.

[0267] As shown in the figure, a pair of pull-out / push-in guides 56 are provided on either side of the housing 10 to support both ends of the cultivation bed 50. The pull-out / push-in guides 56 on both sides have the same structure and can be arranged to face each other. The pull-out / push-in guides 56 extend long in the front-to-back direction, thereby allowing the cultivation bed 50 to be pulled out a sufficient distance.

[0268] The pull-out / push-in guide 56 may be formed with a guide groove 563 that is recessed in the front-to-back direction. The cultivation bed roller 531 mounted on the rear end of the cultivation bed side 53 may be accommodated in the guide groove 563. Furthermore, the guide groove 563 extends from the front end to the rear end of the pull-out / push-in guide 56, so that the cultivation bed roller 531 can move along the guide groove 563. At this time, the cultivation bed roller 531 can contact the inner upper surface 562 and lower surface 561 of the guide groove 563 and rotate to move.

[0269] In addition, the upper surface 562 of the front end of the guide groove 563 can be formed to have a downward slope. Therefore, when the lower cultivation bed 52 is separated and then assembled, the cultivation bed roller 531 can be easily inserted. In addition, a pull-out groove 562a can be formed on one side of the upper surface of the guide groove 563. When the lower cultivation bed 52 is pulled out a set distance, a part of the cultivation bed roller 531 can be accommodated in the pull-out groove 562a. Therefore, when the lower cultivation bed 52 is pulled out a set distance that is easy to operate, the guide roller 564 is in a state of being accommodated in the pull-out groove 562a. In the state described above, the lower cultivation bed 52 is not easy to move in the front-to-back direction and remains in a state of being pulled out a set distance. Therefore, the user can easily perform operations such as placing the seed package 90 or collecting plants.

[0270] A rear stopper 566a may be formed at the rear end of the guide groove 563 to support the cultivation bed roller 531 when the lower cultivation bed 52 is fully inserted, preventing the cultivation bed roller 531 from moving backward. A buffer member 566 formed of an elastic material such as rubber or polyurethane may be mounted on the rear stopper 566a to cushion the impact when the buffer member 566 contacts the cultivation bed roller 531.

[0271] Furthermore, a guide protrusion 567 may be formed at the rear end of the pullout / push-in guide 56, projecting rearward and inserted into the inner wall surface of the cultivation space 11. Furthermore, a bolt hole 565 may be formed on the inner side surface of the guide groove 563, into which a bolt for securing the pullout / push-in guide 56 is fastened. Thus, by fastening the guide protrusion 567 and the bolt, the pullout / push-in guide 56 can be securely fixed to the side wall of the cultivation space 11.

[0272] Furthermore, the guide roller 564 may be provided at the front end of the pull-out / push-in guide 56. The guide roller 564 is slightly below the vertical center of the pull-out / push-in guide 56 and contacts the side rib 532 formed on the cultivation bed side 53, thereby further smoothly performing the pull-out / push-in operation of the lower cultivation bed 52.

[0273] In addition, the cultivation bed rollers 531 and side ribs 532 may be formed on both sides of the lower cultivation bed 52, i.e., the cultivation bed side 53. The cultivation bed rollers 531 may be rotatably mounted on the rear end of the cultivation bed side 53 and rotate while being accommodated in the guide grooves 563, thereby smoothly performing the operation of pulling out / pushing in the lower cultivation bed 52.

[0274] The side ribs 532 may extend from the front of the cultivation bed roller 531 to the front end of the cultivation bed edge 53. The side ribs 532 protrude laterally from the upper and lower center portions of the cultivation bed edge 53, so that the guide rollers 564 contact and roll against the lower surfaces of the side ribs 532.

[0275] That is, Figure 28 As shown, during the process of pulling out the lower cultivation bed 52, the cultivation bed roller 531 contacts the guide groove 563, and the guide roller 564 contacts the side rib 532. Therefore, the lower cultivation bed 52 does not sink or flow in the vertical direction during the process of being pulled out / pushed in, and maintains a stable support state and is pulled out.

[0276] In addition, a rear restriction portion 533 may be formed at the rear end of the side rib 532. The rear restriction portion 533 is formed to be inclined downward. When the lower cultivation bed 52 is fully pulled out, the rear restriction portion 533 interferes with the guide roller 564, making it difficult for the lower cultivation bed 52 to be separated.

[0277] In addition, a push-in groove 534 may be formed in the front half of the side rib 532. The push-in groove 534 may be formed at a position corresponding to the guide roller 564 when the lower cultivation bed 52 is fully pushed in.

[0278] The push-in groove 534 may be formed to accommodate a portion of the upper portion of the guide roller 564. Figure 27 As shown, when the lower cultivating bed 52 is fully pushed in, the guide roller 564 is accommodated in the pushing groove 534, so that the lower cultivating bed 52 can remain in the pushed-in state and not be pulled out at will.

[0279] With the above-described structure, the lower cultivation bed 5 can be stably maintained in the pushed-in state and the pulled-out state, and the lower cultivation bed 52 can be prevented from moving due to external vibration or impact. In addition, when a user performs a pull-out / pushing operation on the lower cultivation bed 52, the pull-out / pushing operation can be smoothly performed using the cultivation bed rollers 531 and the guide rollers 564.

[0280] [Light assembly mounting structure]

[0281] Furthermore, a lamp assembly 60 for irradiating light toward the cultivation bed 50 may be installed above the cultivation bed 50. Hereinafter, the structure and mounting structure of the lamp assembly 60 will be described in detail with reference to the accompanying drawings.

[0282] Figure 29 : is a cross-sectional view showing a state where the lamp assembly is mounted on the pull-out / push-in guide. Figure 30 FIG. 1 is a diagram illustrating a coupling structure of a lamp mounting member for mounting the lamp assembly.

[0283] The lamp assembly 60 is disposed above the cultivation bed 50 and can irradiate light above the cultivation bed 50. In addition, the lamp assembly 60 can have a configuration structure that minimizes loss of the cultivation space 11 and improves space utilization.

[0284] To this end, the lamp assembly 60 can be positioned near the upper surface of the cultivation space 11 and the lower surface of the cultivation bed 50 positioned above. In particular, regardless of the mounting position of the lamp assembly 60, the structure can be the same. Therefore, both the lamp assembly 60 positioned above and the lamp assembly 60 positioned below can have the same mounting structure.

[0285] As will be described in detail with reference to the accompanying drawings, the lamp assembly 60 can be mounted on the inner side surface of the housing 10 and the pull-out / push-in guide 56 via a lamp mounting member 64. In other words, the lamp assembly 60 of the same structure can be mounted at various locations inside the cultivation space 11 using the same lamp mounting member 64.

[0286] Furthermore, a housing fastening hole 142a is formed on the upper surface of the housing 10 for mounting the lamp mounting member 64. A guide fastening hole 561a may be formed in the pull-out / push-in guide 56. The housing fastening hole 142a and the guide fastening hole 561a are formed in the same shape except for their positions, so that the lamp mounting member 64 of the same structure can be mounted in the housing fastening hole 142a and the guide fastening hole 561a.

[0287] The housing fastening holes 142a may be formed in the inner upper plate 142, which forms the upper surface of the cultivation space 11. Four housing fastening holes 142a may be provided, one each in the front half, the rear half, and the left and right sides of the upper surface of the cultivation space, to stably secure the lamp assembly 60 at the four corners of the upper surface.

[0288] The lamp mounting member 64 may include a mounting member fastening portion 641 fixed to the housing fastening hole 142 a and the guide fastening hole 561 a and a mounting member head 642 that restricts the lamp assembly 60 .

[0289] The mounting member fastening portion 641 is formed in a threaded shape and is screwed into the housing fastening hole 142a or the guide fastening hole 561a, thereby firmly mounting the lamp assembly 60. In addition, the mounting member fastening portion 641 can be formed to be longer than the depth of the housing fastening hole 142a and the guide fastening hole 561a.

[0290] The mounting member head 642 is formed at the lower end of the mounting member fastening portion 641 and may be formed in the shape of a circular plate having a predetermined size. The mounting member head 642 may be formed to correspond to the size of the insertion portion 612a formed in the housing restriction hole 612 formed on the upper surface of the lamp assembly 60. Therefore, when the lamp assembly 60 is installed, the mounting member head 642 can be inserted into the housing restriction hole 612.

[0291] In addition, when the lamp mounting member 64 is coupled to the inner side surface of the housing 10 or the pull-out / push-in guide 56, the mounting member head 642 may be spaced apart from the inner upper plate 142 and the pull-out / push-in guide 56 by a set distance. The set distance may be formed to correspond to the thickness of the lamp housing 61 forming the upper surface of the lamp assembly 60.

[0292] The housing limiting hole 612 formed on the upper surface of the lamp housing 61 can be composed of an insertion portion 612a and a limiting portion 612b. The insertion portion 612a can be formed to be the same size as the mounting member head 642 or slightly larger than the mounting member head 642, so that the lamp assembly 60 can be inserted into the insertion portion 612a.

[0293] In addition, if Figure 31 As shown, the restricting portion 612b may be formed to be further concave forward from the front end of the inserting portion 612a. The restricting portion 612b may be formed to have a cross section slightly larger than the mounting member fastening portion 641 and may be formed to be smaller than the inserting portion 612a.

[0294] Therefore, when the lamp housing 61 is moved backward while the mounting member head 642 is inserted into the insertion portion 612a, the mounting member fastening portion 641 is inserted into the inner side of the limiting portion 612b. At this time, the mounting member head 642 will limit the outer periphery of the limiting portion 612b. Figure 29 As shown, the outer periphery of the restricting portion 612b can be inserted into the space between the mounting member head 642 and the lower surface of the pull-out / push-in guide 56 and thereby restricted. Conversely, when the lamp housing 61 is moved forward with the lamp housing 61 mounted, the mounting member head 642 moves toward the insertion portion 612a, thereby separating the lamp assembly 60.

[0295] In addition, the guide fastening holes 561a can be opened in the front and rear halves of the lower surface of the pull-out / push-in guide 56. The pull-out / push-in guides 56 are provided on both the left and right sides of the cultivation space 11, so a total of four lamp mounting members 64 are provided to fix the four corners of the upper surface of the lamp assembly 60.

[0296] As described above, the lamp mounting member 64 of the same structure can be mounted on the inner upper plate 142 and the pull-out / push-in guide 56, respectively, thereby being able to mount the lamp assembly 60 of the same structure regardless of the mounting position.

[0297] The pull-out / push-in guide may be further provided depending on the number of the cultivation beds 50 arranged in the cultivation space 11. When a plurality of pull-out / push-in guides 56 are arranged vertically, the lamp mounting member 64 may be mounted on each of the pull-out / push-in guides 56 to mount the lamp assembly 60.

[0298] The lamp assembly 60 may include: a lamp housing 61 , in which a receiving space 611 is formed and fixedly installed by the lamp mounting member 64 ; an LED module 62 in the lamp housing 61 ; and a lamp cover 63 for shielding the lamp housing 61 .

[0299] [Light assembly structure]

[0300] Hereinafter, the structure of the lamp assembly 60 will be described in detail with reference to the accompanying drawings.

[0301] Figure 31 This is an exploded perspective view of the lamp assembly as viewed from above. Figure 32 This is an exploded perspective view of the lamp assembly as viewed from below.

[0302] As shown in the figure, the lamp assembly 60 may have a size corresponding to the upper surface of the cultivation space 11 or the cultivation bed 50. Therefore, light can be uniformly irradiated to the entire area of ​​the cultivation bed 50 disposed therebelow.

[0303] The lamp assembly 60 may include a lamp housing 61 having an open lower surface, and an LED module 62 may be housed within the lamp housing 61. The lamp housing 61 may be formed in a quadrilateral plate shape and may have an edge 613 extending downward along the outer circumference. Furthermore, a front surface 613a of the edge 613 may be formed at an angle, thereby minimizing exposure of the lamp assembly 60 when a user opens the door 20.

[0304] In addition, a plurality of housing restriction holes 612 may be formed on the upper surface of the lamp cover 63. The housing restriction holes 612 are combined with the lamp mounting member 64, and thus may be formed at four corners of the upper surface of the lamp cover 63. In addition, when the positions of the lamp mounting member 64 fastened to the pull-out / push-in guide 56 and the inner upper plate 142 are different, as shown in FIG. Figure 31 As shown, the housing limiting holes 612 can also be formed at corresponding positions so that all the lamp mounting members 64 can be combined, thereby forming a total of eight housing limiting holes. Of course, when the positions of the lamp mounting members 64 are the same, four housing limiting holes 612 can be formed.

[0305] The housing limiting hole 612 may include an insertion portion 612a having a size corresponding to the mounting member head 642 and a limiting portion 612b formed so as to be further recessed from the front end of the insertion portion 612a. In this case, the limiting portion 612b may be formed to be larger than the thickness of the mounting member fastening portion 641 and smaller than the size of the mounting member head 642.

[0306] Therefore, in a state where the mounting member head 642 is inserted into the insertion portion 612 a , the lamp assembly 60 can be mounted or detached by moving the lamp housing 61 in the front-rear direction.

[0307] Wire guide ribs 614 for guiding the wires connected to the LED module 62 may be formed on both sides of the lower surface of the lamp cover 63. These ribs 614 extend long in the front-to-back direction and may be provided in pairs on the left and right sides. The pair of wire guide ribs 614 are spaced apart from each other, and a plurality of wire terminations 615 may be formed in the spaced-apart spaces.

[0308] The wire guide ribs 614 and the wire end portions 615 are disposed on both sides so as not to interfere with the LED module 62 when the LED module 62 is installed. Furthermore, the wire guide ribs 614 and the wire end portions 615 are located between the housing restriction holes 612, thereby preventing interference between the wire guide ribs 614 and the wire end portions 615 when the lamp assembly 60 is installed.

[0309] The wire end portion 615 is used to press and restrain the wires guided by the wire guide ribs 614. It can be formed into a shape such as a loop, so that it can surround multiple wires at the same time. The wire end portion 615 can be arranged in a direction facing each other on the left and right sides, and multiple wire end portions 615 can be formed at regular intervals along the wire guide ribs 614.

[0310] Furthermore, an LED module 62 can be mounted on the lamp housing 61. The LED module 62 can be configured by mounting multiple LEDs on a substrate. The multiple LEDs can be arranged continuously on the substrate at predetermined intervals. The LEDs can be configured to have a light intensity (wavelength) similar to sunlight and to emit light of a color that promotes photosynthesis in plants.

[0311] The LED module 62 may be formed of a plurality of LED modules. Figure 31 As shown, the LED modules 62 can be arranged in the front-to-back direction, as shown in FIG. Figure 32 As shown, a plurality of LED modules 62 may be continuously arranged in the left-right direction. In this case, the plurality of LED modules 62 may generate different outputs, or may be configured to irradiate light of different outputs or different wavelengths according to the position of the cultivated plants.

[0312] For example, plants located on the left and right sides of the cultivation bed 50 may receive relatively less light than plants located in the center of the cultivation bed 50. Therefore, the output of the LED modules 62 located on the left and right sides can be increased compared to the output of the LED modules 62 located in the center, thereby ensuring that the plants throughout the cultivation bed receive light evenly. Furthermore, as needed, the spacing or arrangement of the LEDs mounted on the substrate can be adjusted to ensure that light is evenly distributed throughout the cultivation bed 50.

[0313] Furthermore, a lamp cover 63 may be provided on the lower surface of the opening of the lamp housing 61. The lamp cover 63 is attached to the lamp housing 61 to shield the lower surface of the opening of the lamp housing 61 and to protect the LED module 62 disposed therein.

[0314] The lamp cover 63 may be formed of a transparent material so as to allow light to pass therethrough, and a coating or surface treatment for diffusing light may be added to the lower surface of the lamp cover 63 .

[0315] A rim 632 is formed on the outer periphery of the lower surface of the lamp cover 63, providing a space 631 inside the rim for accommodating the LED module 62. Furthermore, the rim 632 can be coupled to the lamp housing 61 to seal the interior of the lamp housing 61. Furthermore, a wire outlet 632a can be formed on the rear surface of the lamp cover 63. The wire outlet 632a serves as a passage for the wires inside the lamp housing 61 to enter and exit. The wires, which are open to the rear and enter and exit the lamp housing 61, are not exposed and are directed toward the connectors 111, 112, and 113 on the rear wall of the cultivation space 11.

[0316] Furthermore, blower assembly mounting portions 633 may be formed on both sides of the rear end of the lamp cover 63, and the blower assembly 80 may be mounted on the blower assembly mounting portions 633. The blower assembly mounting portions 633 are recessed to receive the blower brackets 816 provided on both sides of the upper end of the blower assembly 80.

[0317] [Display unit structure]

[0318] In addition, a display unit 70 is provided inside the cultivation space 11, and the operating status of the plant cultivation device 1 can be displayed to the outside through the display unit 70. The display unit 70 will be described in detail below with reference to the accompanying drawings.

[0319] Figure 33 1 is a diagram showing a state where a display unit as one structure of the plant cultivation device is installed. Figure 34 is an exploded perspective view of the display assembly.

[0320] As shown in the figure, the display assembly 70 may include: a display case 71 forming an exterior; a display module 74 accommodated in an inner space 711 of the display case 71; and a rear cover 75 for shielding the rear surface of the opening of the display case 71.

[0321] Specifically, the display housing 71 may be provided in front of the lamp assembly 60 . In this case, the display housing 71 may be mounted on any of the lamp assemblies 60 except the lamp assembly 60 mounted on the upper surface of the cultivation space 11 .

[0322] The display housing 71 is disposed at the front end of the lamp assembly 60 and can be fixedly mounted to the front end of the upper surface of the lamp assembly 60. The lateral length of the display housing 71 can correspond to the lateral length of the lamp assembly 60 and can extend from one end to the other end of the cultivation space 11. Furthermore, the upper and lower widths of the display housing 71 can be formed to be the same as or slightly greater than the thickness of the lamp assembly 60. Therefore, the front surface of the lamp assembly 60 is shielded by the display housing 70, and the lamp assembly 60 is not exposed to the outside when viewed from the front.

[0323] A display opening 712 may be formed on the front surface of the display housing 71. The display opening 712 allows information output from the display module 74 to be displayed externally. Furthermore, a display sheet 73 may be provided on the front surface of the display housing 71. The display sheet 73 is formed of a transparent or translucent material, thereby displaying the output image of the display module 74 exposed through the display opening 712.

[0324] Additionally, housing mounting portions 72 may be provided on the left and right sides of the upper surface of the display housing 71. The housing mounting portions 72 may be formed by extending rearward by a predetermined length. The housing mounting portions 72 may extend rearward and rest on the upper surface of the lamp housing 61. Furthermore, bolt holes 721 are formed in the housing mounting portions 72, and the lamp housing 61 is secured to the upper surface thereof using bolts secured in the bolt holes 721.

[0325] The display module 74 may include a display 742 housed inside the display housing 71 for outputting information, and a substrate 741 for mounting the display 742. The display 742 may be a touchscreen display 742 capable of user input. Furthermore, the display 742 may be exposed to the outside through the display opening 712. Optionally, buttons for inputting operations may also be provided on the display housing 71.

[0326] A rear cover 75 may be provided on the rear surface of the opening of the display housing 71. A module mounting portion 751 for mounting the display module 74 may be formed on the rear cover 75. An edge protruding forward is formed on the periphery of the module mounting portion, and the edge 752 may be coupled to the display housing 71.

[0327] Furthermore, wire inlets 753 may be opened on both sides of the upper end of the module mounting portion 751 for the entry and exit of wires connected to the display module 74. The wires passing through the wire inlets 753 can be guided through the lamp housing 61 together with the wires of the lamp assembly 60. Furthermore, the wires passing through the wire inlets 753 can be guided rearward through the space between the cultivation bed 50 and the display assembly 70 as needed.

[0328] A rearwardly protruding support portion 752 may be formed on the back of the module mounting portion 751. The support portion 752 may protrude rearwardly to contact the front surface of the lamp assembly 60. The rear surface of the support portion 752 is formed at an angle, with a slope corresponding to the inclined front surface of the lamp assembly 60. Therefore, when the display assembly 70 is installed, the support portion 752 is completely in contact with the front surface of the lamp housing 61, maintaining a stable installation and creating a more integrated feel.

[0329] [Blower assembly structure]

[0330] Figure 35 This is a diagram showing a state in which a blower assembly, which is one structure of the plant cultivation apparatus, is installed.

[0331] As shown in the figure, the evaporator 31 is installed on the rear wall surface of the cultivation space 11, that is, the inner rear plate 146, and the blower assembly 80 can be installed in front of the evaporator 31.

[0332] The blower assembly 80 is configured to circulate air over the cultivation space 11 divided by the cultivation beds 50. Therefore, the blower assemblies 80 may be provided in a number corresponding to the number of the cultivation beds 50 and disposed at the lower end of the lamp assembly 60 and above the cultivation beds 50.

[0333] In addition, the blower assembly 80 has a structure as described below, that is, it discharges air heated or cooled by the heater 102 or the evaporator 31 from the upper end and sucks air at a position close to the upper surface of the cultivation bed 50, thereby circulating the air inside the cultivation space 11.

[0334] The heater 102 and evaporator 31 may be disposed in a vertically intermediate region of the inner rear panel 146, and may be configured so that at least a portion overlaps with a portion of the blower assembly 80 disposed above and below. Therefore, air heated and cooled by the heater 102 and evaporator 31 may circulate through the blower assembly 80, and the entire divided space within the cultivation space 11 may be uniformly cooled or heated by a single heater 102 and evaporator 31.

[0335] The blower assembly 80 is spaced apart from the inner rear panel 146 to allow cooled or heated air to flow smoothly and to avoid interference with the evaporator 31. The blower assembly 80 may be configured such that its upper end is coupled to the rear end of the lower surface of the lamp assembly 60.

[0336] The blower assembly 80, when installed inside the cultivation space 11, shields the evaporator 31 and the structure provided on the inner rear plate 146, thereby preventing them from being exposed to the outside. Figure 35 In FIG. 1 , in order to explain the arrangement relationship between the evaporator 31 and the blower assembly 80 , the blower cover 84 forming the front surface of the blower assembly 80 is shown in a separated state.

[0337] The blower assembly 80 is formed to be elongated in the transverse direction and can be configured to correspond to the transverse length of the inner rear panel 146. Furthermore, air blown by the centrally located blower fan 82 is branched to both sides by the blower body 81 and discharged forward from the outlet side at a uniform air volume. The detailed structure of the blower assembly 80 will be described in detail below.

[0338] An outlet 171 of the supply duct 17 may be opened at the lower portion of the inner rear panel 146, more specifically, at a position lower than the blower assembly 80 disposed thereunder. The supply duct 17 may communicate with the machine room 12 and supply carbon dioxide to the interior of the cultivation space 11.

[0339] Furthermore, a plurality of connectors 111, 112, and 113 may be provided on the inner rear panel 146. These connectors 111, 112, and 113 are configured to connect electrical wires extending from the lamp assembly 60, the display assembly 70, and the blower assembly 80 within the cultivation space. This facilitates connection of electrical components within the cultivation space 11.

[0340] Furthermore, a connector 114 for connecting electric wires extending from the water pump 494, the flow meter 495, and the water supply valve 496 may be further provided on the second bottom plate 144. The connector 114 is disposed inside the water supply tank 49 so as to be shielded by the water supply tank 49.

[0341] Hereinafter, the structure of the blower assembly 80 will be described in detail with reference to the accompanying drawings.

[0342] Figure 36 It is an exploded perspective view of the blower assembly as viewed from above. Figure 37 This is an exploded perspective view of the blower assembly as viewed from the rear. Figure 38 This is a perspective view of the blower assembly from the rear. Figure 39 It is along Figure 38 A three-dimensional view taken along line 39-39'.

[0343] As shown in the figure, the blower assembly 80 may include: a blower fan 82; a blower body 81 for mounting the blower fan 82; and a blower cover 84, which covers a portion of the inner rear plate 146 including the blower body 81.

[0344] Specifically, the blower fan 82 is formed in a box fan shape and may be provided at the center of the blower body 81. In addition, the blower fan 82 may discharge air flowing in from the rear of the blower assembly 80 to the front.

[0345] The blower body 81 provides a space for mounting the blower fan 82 and is configured to guide the air discharged by the blower fan 82. The blower body 81 is formed by injection molding of a plastic material, and a fan mounting portion 811 is formed in the center of the back side of the blower body 81. The fan mounting portion 811 is recessed in a shape corresponding to the blower fan 82. Furthermore, an air hole 812 is formed in the fan mounting portion 811 to allow air to flow toward the blower fan 82 when the blower fan 82 rotates.

[0346] Furthermore, an air guide 813 is formed on the front surface of the blower body 81 to guide upward the air discharged from the blower fan 82. The air guide 813 may be provided on both left and right sides of the fan mounting portion 811.

[0347] The air guide 813 extends from the lower end of the fan mounting portion 811 toward both sides and may be formed with an inclined surface that gradually increases in height along the extension direction. Therefore, air discharged from the air supply fan 82 flows along the inclined surface and, as it moves outward, approaches the protruding outlet formed at the upper end of the air supply unit body 81.

[0348] Furthermore, upwardly extending ribs 813a may be formed on the upper surface of the air guide 813. The ribs 813a extend upward from the air guide 813 and may extend perpendicularly to the upper end of the blower body 81. The ribs 813a may be connected to the inner side of the blower body 81, thereby reinforcing the air guide 813 and guiding the air flowing along the air guide 813 upward. With the structure of the air guide 813 and the ribs 813a described above, the air discharged from the air blower fan 82 can be evenly discharged across the entire discharge port of the blower body 81.

[0349] In addition, a discharge guide portion 815 may be formed at the upper end of the front surface of the blower body 81. The discharge guide portion 815 guides the air discharged by the air supply fan 82 to be discharged toward the front of the blower body 81. The discharge guide portion 815 forms a surface that bulges toward the front from the bottom to the top. That is, the discharge guide portion 815 forms an inclined surface or a circular surface, and guides the air flowing from the bottom to the top toward the front. At this time, the end of the discharge guide portion 815 is close to the lower surface of the lamp assembly 60, so that the air discharged from the blower assembly 80 can flow forward from the rear end of the lower surface of the lamp assembly 60 through the discharge guide portion 815. When the lamp assembly 60 dissipates heat through the air flow as described above, the lamp assembly 60 can be cooled.

[0350] A connector hole 814 may be formed on one side of the blower body 81. The connector hole 814 is formed to open at a position corresponding to the connectors 811 and 812 mounted on the inner rear panel 146. Therefore, when the blower assembly 80 is installed, the connectors 811 and 812 are inserted into the connector hole 814 without interfering with each other. Furthermore, the electrical wires connected to the blower fan 82 can be connected to the electrical wires through the connector hole 814.

[0351] The air supply fan 82 can be kept fixed to the fan mounting portion 811 by a plate-shaped fan fixing member 821 mounted on the fan mounting portion 811 and a bolt 822 passing through the fan fixing member 821 and fastened to the blower body 81 .

[0352] Blower brackets 816 for inserting and mounting on the blower assembly mounting portion 633 can be provided on the left and right sides of the upper surface of the blower body 81. The blower brackets 816 can be formed into a vertically curved shape. One end of the blower bracket 816 is coupled to the upper surface of the blower body 81, and the other end can be mounted on the blower assembly mounting portion 633 formed at the rear end of the lower surface of the lamp assembly 60. Therefore, the lamp assembly 60 and the blower assembly 80 can be coupled to each other in a form that intersects perpendicularly with each other. In addition, the blower assembly 80 can discharge air from the rear end of the lamp assembly 60 toward the front.

[0353] Recessed spaces may be formed on both sides of the blower body 81. A recessed space may be formed below the air guide 813, and a first guide heat insulating material 831 and a second guide heat insulating material 832 may be installed in each of these recessed spaces. Furthermore, a recessed space is formed at the upper back end of the air guide 813, and a third guide heat insulating material 833 may be installed in this recessed space. The first, second, and third heat insulating materials 831, 832, and 833 prevent the cold air generated by the evaporator 31 from directly passing through the blower assembly 80 and being transferred forward.

[0354] In addition, the blower cover 84 can shield all components mounted on the blower body 81 and the blower body 81 in front of the blower body 81. In addition, when the blower assembly 80 is installed, the blower cover 84 can form the appearance of the rear wall of the cultivation space 11.

[0355] The blower cover 84 may be formed of the same metal material as the inner plate 141 and may be formed by bending a plate-shaped material. The blower cover 84 may have an edge portion 841 curved along the outer periphery, and the blower body 81, on which the blower fan 82 is mounted, may be accommodated in a space 842 inside formed by the edge portion 841.

[0356] The upper surface of the blower cover 84 is formed in an open manner. In addition, it can be located at a position corresponding to the upper end of the blower body 81. Therefore, the air discharged through the discharge guide 815 can pass through the upper surface of the open blower cover 84 and be discharged.

[0357] The side surfaces of the blower cover 84 in the edge portion 841 can be formed so as to surround the side surfaces of the blower body 81. Furthermore, the blower cover 84 can extend further below the blower body 81. The blower cover 84 can extend to the upper surface of the cultivation bed 50. Therefore, when the blower assembly 80 is installed, a rear wall surface corresponding to the space between the lamp assembly 60 and the cultivation bed 50 is formed. Furthermore, by shielding the structure mounted on the inner rear panel 146, a clean appearance can be achieved.

[0358] Furthermore, the edge portion 841 of the edge portion 841 forming the lower surface of the blower cover 84 can extend shorter than the two side surfaces. Therefore, the lower surface of the blower cover 84 can be separated from the inner rear panel 146, thereby creating a space for air to flow downward. In other words, when the blower assembly 80 is installed, an air intake is formed on the lower surface of the blower cover 84.

[0359] Furthermore, the edge portion 841 forming the lower surface of the blower cover 84 can be bent downward to form a curved portion 841a. The curved portion 841a can extend further downward from the rear of the cultivation bed 50. This shields the structure on the inner rear panel 146 while leaving the lower end of the blower cover 84 uncovered, resulting in a cleaner appearance. Furthermore, the curved portion 841a is separated from the rear end of the cultivation bed 50 and the inner rear panel 146, respectively, to form an intake for air flowing into the blower cover 84.

[0360] Next, in a state where the blower unit 80 having the above-described structure is installed, the air flow state inside the cultivation space 11 will be described again with reference to the drawings.

[0361] Figure 40 is a cross-sectional view showing the state of air circulation inside the housing. Figure 41 yes Figure 40 Magnified view of part B.

[0362] As shown in the figure, the internal temperature of the cultivation space 11 is sensed by the internal temperature sensor 182, and the cultivation space 11 is maintained at a set temperature by operating the heater 102 or the evaporator 31. In addition, the air in the cultivation space 11 can be circulated by driving the air supply fan 82, and the air can be heated or cooled by the heater 102 or the evaporator 31, so that the entire cultivation space 11 can maintain a uniform temperature.

[0363] When the air supply fan 82 is activated, air in the cultivation space 11 flows along the upper surface of the cultivation bed 50 and toward the rear end of the cultivation bed 50. During this process, the plants growing in the cultivation bed 50 are swayed by the flowing air, further promoting their growth. To this end, the air supply fan 82 maintains a set air volume and, as needed, periodically changes the air volume and applies appropriate stress to the plants, thereby accelerating plant growth or further improving their growth.

[0364] The air flowing to the rear end of the cultivation bed 50 can flow into the inner side of the blower cover 84 through the space between the lower end of the blower cover 84 and the rear end of the cultivation bed 50. In this case, the curved portion 841a at the lower end of the blower cover 84 can be used to prevent the air intake space of the cultivation space 11 from being exposed and to allow the air to flow in smoothly.

[0365] Air flowing into the inner side of the blower cover 84 flows upward toward the blower fan 82. During this process, the flowing air may be cooled by the evaporator 31 or heated by the heater 102. Furthermore, the cooled or heated air is forced forward by the blower fan 82. The forward-flowing air flows to both sides and upward through the air guide 813. At this point, the discharged air is evenly distributed toward the discharge guide 815 thanks to the inclined surface of the air guide 813 and the ribs 813a. Specifically, near the blower fan 82, the distance between the air guide 813 and the discharge guide 815 is greater, allowing air to flow at a higher speed over a relatively longer distance. Furthermore, as the distance from the blower fan 82 decreases, the distance between the air guide 813 and the discharge guide 815 gradually decreases, allowing air to flow at a slower speed over a relatively shorter distance. Therefore, the air discharged through the discharge guide 815 can be discharged at a constant flow rate throughout the entire area.

[0366] The air discharged from the discharge guide 815 flows forward along the lower surface of the lamp assembly 60, that is, the lamp cover 63. At this time, the air flowing along the lamp cover 63 can reduce the heat generated by the lamp assembly 60 during operation.

[0367] The air flowing forward along the lower surface of the lamp assembly 60 flows to the front half of the cultivation space 11, flows downward, and then flows backward along the cultivation bed 50 and into the inside of the blower cover 84. This continuous circulation of air uniformly heats the entire cultivation space 11 and maintains a constant temperature, thereby creating optimal conditions for plant growth within the cultivation bed 50.

[0368] [Carbon dioxide cycle structure]

[0369] In addition, carbon dioxide is essential for actively maintaining photosynthesis of the plants arranged in the cultivation space 11. In order to continuously supply carbon dioxide to the cultivation space 11, a supply pipe 17 and a return pipe 150 connecting the machine room 12 and the interior of the cultivation space may be further provided.

[0370] Hereinafter, the structures of the supply pipe 17 and the return pipe 150 will be described in detail with reference to the accompanying drawings.

[0371] Figure 42 : is a perspective view of the machine room of the plant cultivation device with the machine room opened. Figure 43 This is a partial perspective view of the housing as viewed from below.

[0372] As shown in the figure, the machine room 12 opens toward the rear of the housing 10, and the bottom surface of the machine room 12 can be formed by the machine room base 121. In addition, the compressor 32 and condenser 33 constituting the refrigeration cycle can be mounted on the machine room base 121. In addition, a fan guide 341 is provided between the compressor 32 and the condenser 33, and the condenser fan 34 can be installed on the fan guide 341.

[0373] By driving the condenser fan 34, external air is drawn into the condenser 33 and then passes through the condenser fan 34 toward the compressor 32. The condenser fan 34 forces air to flow inside the machine room 12, thereby cooling the condenser 33 and the compressor 32 or performing heat exchange.

[0374] Furthermore, the supply duct 17, which communicates with the cultivation space 11, extends to a position close to the condenser fan 34. In this case, the supply duct 17 can extend downward from the space in which the compressor 32 is located within the space defined by the fan guide 341. In particular, the lower end of the opening of the supply duct 17 can be formed to face the condenser fan 34. Therefore, an additional fan for supplying carbon dioxide is unnecessary. When the condenser fan 34 rotates, air from the machinery room 12 can flow into the inlet of the supply duct 17. Furthermore, air within the machinery room 12 flows into the cultivation space 11 through the supply duct 17.

[0375] The return duct 150 may extend downward from a side separated from the supply duct 17. The discharge pipe 152 of the return duct 150 may extend to the blade area of ​​the condenser fan 34. In addition, the lower end of the opening of the discharge pipe 152 may be formed to face downward. Therefore, the air forcibly blown by the condenser fan 34 can quickly pass through the opening of the discharge pipe 152. Therefore, a negative pressure can be formed on the lower surface of the opening of the discharge pipe 152, and the air inside the cultivation space 11 can flow into the return duct 150 and be discharged into the machine room 12.

[0376] As described above, by rotating the condenser fan 34, the air in the machine room 12 is forcibly supplied to the cultivation space 11 through the supply duct 17, thereby supplying carbon dioxide to the interior of the cultivation space 11. In addition, the plants in the cultivation space 11 can perform photosynthesis using the supplied carbon dioxide.

[0377] The air inside the cultivation space 11 can be exhausted into the machinery room via the return duct 150. The forced air flow through the supply duct 17 and the return duct 150 allows carbon dioxide to be continuously supplied to the cultivation space 11. Furthermore, the amount of air flowing from the machinery room 12 into the cultivation space 11 can be adjusted based on the type of plant being cultivated and the amount of carbon dioxide required at the cultivation stage.

[0378] Although not shown, a filter may be installed in the supply duct 17 or the return duct 150. Such a filter can prevent dust from flowing into the machine room 12 or the cultivation space 11 when air flows into the machine room 12 or the cultivation space 11. Furthermore, if necessary, an opening and closing mechanism, such as a damper that opens only in one direction, may be installed in the supply duct 17 and the return duct 150. This mechanism can be opened only when necessary, thereby adjusting the amount of carbon dioxide supplied.

[0379] Figure 44 It is a perspective view of a supply pipe as one structure of the plant cultivation device.

[0380] The structure of the supply duct 17 will be described in detail with reference to the accompanying drawings. The supply duct 17 can be formed to extend vertically and longitudinally, and can have an outlet 171 at the upper end for discharging air and an inlet 175 at the lower end for inletting air. The inlet 175 and outlet 171 can be formed to face different directions. Specifically, the inlet 175 can be positioned facing the condenser fan 34, while the outlet 171 can be formed to face the rear wall of the cultivation space 11.

[0381] A flange portion 172 is formed on the outer periphery of the outlet 171. The flange portion 172 is bent outward from the outer periphery of the outlet 171 and can be fixed to the inner rear plate 146 in contact therewith.

[0382] In addition, the supply duct 17 may include an upper duct portion 173 and a lower duct portion 174. The upper duct portion 173, which is a portion that bends downward from the outlet of the supply duct 17, may have an elliptical cross-section. In particular, the diameter in the front-to-back direction is significantly smaller than the diameter in the left-to-right direction. This structure is intended to be configured in the space between the outer shell 130 and the inner shell 140, which are formed shorter at the upper portion of the supply duct 17. Although the diameter of the upper duct portion 173 in the front-to-back direction is formed smaller, the cross-sectional area can be formed similarly to the outlet 171 and the inlet 175, so that the air passing through the supply duct 17 flows smoothly.

[0383] The lower duct portion 174 extends from the lower end of the upper duct portion 173 and may extend to the inlet 175. The lower duct portion 174 is located in the inner area of ​​the machinery compartment 12 and is therefore relatively unrestricted by thickness. Furthermore, the inlet 175 may be formed to have a more circular cross-sectional shape than the upper duct portion 173, allowing air blown by the condenser fan 34 to flow more smoothly into the inside of the supply duct 17 through the inlet 175. Furthermore, a duct connection portion 176 may be formed between the upper duct portion 173 and the lower duct portion 174 to naturally connect the upper duct portion 173 and the lower duct portion 174.

[0384] Next, the air flow path for supplying carbon dioxide will be described in detail with reference to the accompanying drawings.

[0385] Figure 45 is a top view showing the arrangement of the supply and return pipes in the machine room. Figure 46 FIG. 1 is a diagram showing a state in which carbon dioxide is supplied and discharged through the supply pipe and the return pipe.

[0386] As shown in the figure, the inlet 175 of the supply duct 17 is actually located on a side surface close to the fan guide 341. In addition, the opening surface of the inlet 175 is formed so as to face the blades of the air supply fan 82 and can be arranged to be parallel to the front surface of the condenser fan 34 (the surface intersecting the rotation axis of the condenser fan).

[0387] Therefore, when the condenser fan 34 rotates, the air forced by the condenser fan 34 effectively flows into the inlet of the supply duct 17. At this time, the front-to-back width D2 of the lower duct portion 174 can be formed to be larger than the front-to-back width D1 of the upper duct portion 173. The air flowing into the lower duct portion 174 flows upward and into the upper duct portion 173. Then, after passing through the upper duct portion 173, it flows through the outlet 171 toward the rear of the blower assembly 80.

[0388] At this time, the front-to-rear width of the upper duct portion 173 is relatively smaller than that of the lower duct portion 174 . However, the cross-sectional areas of the upper duct portion 173 and the lower duct portion 174 are the same, thereby preventing flow loss.

[0389] The air flowing into the machinery compartment 12 behind the blower assembly 80 contains carbon dioxide and is evenly supplied to the interior of the cultivation space 11 by the blower assembly 80. The carbon dioxide flowing into the cultivation space 11 contributes to the photosynthesis of the cultivated plants. Furthermore, the carbon dioxide is used for photosynthesis, and the relatively carbon dioxide-deficient air in the cultivation space 11 flows back into the machinery compartment via the return duct 150.

[0390] At this time, the outlet of the return duct opens downward, so the air blown by the condenser fan 34 passes through the outlet 171 of the return duct 150. Therefore, negative pressure can be formed at the outlet of the return duct 150, and the air in the cultivation space 11 can flow back into the machine room 12.

[0391] The return pipe 150 is formed such that a pipe installation portion 151 formed at an upper portion thereof has an inclined surface and a wide area, so that when defrost water is generated, the defrost water can be discharged to the machine room 12 through the pipe installation portion 151 and the discharge pipe 152 .

[0392] In addition, a bottom cover 55 may be provided on the lower surface of the housing 10 to accommodate electrical components.

[0393] Figure 47 It is a perspective view showing the internal structure of a bottom case which is one structure of the plant cultivation device.

[0394] As shown in the figure, the bottom case 19 is formed in a shape with an open upper surface, and the open upper surface may be formed so as to face the bottom surface of the housing 10. The bottom case 19 may be located between the ground on which the housing 10 and the plant cultivation device 1 are installed. In an environment where a user primarily observes the plant cultivation device 1 from above, the bottom case 19 and the electrical components inside the bottom case 19 are not exposed to the outside.

[0395] The bottom case 19 has an edge formed along the outer periphery of the lower surface of the planar shape. In addition, the bottom case 19 has a space formed therein for accommodating electrical components disposed in an inner space 190 of the bottom case 19 .

[0396] For example, a door switch 195 for sensing the opening and closing of the door 20 may be provided in the internal space of the bottom shell 19. In addition, a communication unit 185 for communicating with an external device may be formed inside the bottom shell 19. The communication unit 185 is configured to be capable of performing wireless communications such as Wi-Fi (wireless local area network), ZigBee, NFC (near field communication), Bluetooth, etc., and may be configured to transmit operating information, input commands, or stored processing and usage information of the plant cultivation device 1 through the user's mobile phone and computer. Furthermore, an external temperature sensor 194 may be provided inside the bottom shell 19 to sense the outdoor temperature. In addition, an external humidity sensor 194 may also be provided inside the bottom shell 19, and an internal humidity sensor 183 may be provided inside the cultivation space 11.

[0397] In addition, a wire guide portion 192 may extend laterally from one side of the bottom case 19. The upper portion of the wire guide portion 192 is open to accommodate wires 195 connected to the door switch 195, the external temperature sensor 194, and the communication unit 185, and may be formed to communicate with the space where the electrical components are accommodated.

[0398] [Overall Operation]

[0399] Next, the operation of the plant cultivation device 1 according to the embodiment of the present invention having the above-described structure will be described in detail.

[0400] Figure 48 is a block diagram showing the flow of control signals of the plant cultivation device. Figure 49 It is a diagram schematically showing the operating state of the plant cultivation device.

[0401] As shown in the figure, a seed package 90 is placed on the cultivation bed 50, and water from the water tank 40 is quantitatively supplied to the cultivation bed 50. In addition, the water supplied to the cultivation bed 50 and the nutrient solution contained in the seed package 90 can be supplied to the plants inside the seed package 90.

[0402] Furthermore, the light assembly 60 is operated to illuminate the plants growing in the cultivation bed 50. The light assembly 60 can be turned on and off at appropriate time intervals according to the plant's cultivation status and environment. In particular, by turning the light assembly 60 on and off according to the actual amount of sunlight in each season, the plants within the plant cultivation device 1 can be provided with an environment similar to that found in the natural environment outside.

[0403] The plants in the cultivation bed 50 perform photosynthesis using the light provided by the lamp assembly 60 and can receive the carbon dioxide required for the above process through the supply pipe 17. In particular, the condenser fan 34 can simultaneously supply carbon dioxide to the cultivation space without requiring an additional dedicated fan, and the air inside the cultivation space 11 is recycled into the machinery room 12, thereby circulating between the machinery room 12 and the cultivation space 11.

[0404] In addition, when the temperature inside the cultivation space 11 is too low, the heater 102 is driven, and when the temperature inside the cultivation space 11 is too high, the refrigeration cycle is driven and the evaporator 31 performs a cooling function.

[0405] The air heated or cooled by the heater 102 or the evaporator 31 is discharged forward through the blower assembly 80. At this time, the air flows forward from the rear end of the lamp assembly 60 and cools the lower surface of the lamp assembly 60 during the flow of the air.

[0406] Furthermore, the air moving forward moves downward and then flows from the front end of the cultivation bed 50 to the rear end of the cultivation bed 50. The flow of air flowing over the upper surface of the cultivation bed 50 causes the stems and leaves of the plants growing on the cultivation bed 50 to shake, thereby significantly improving the condition of the cultivated plants.

[0407] The air flowing into the rear end of the cultivation bed 50 passes through the space where the evaporator and the heater 102 are installed again, and can be discharged to the lamp unit 60 side by the air supply fan 82 .

[0408] The air flowing by driving the air supply fan 82 circulates inside the cultivation space 11 , and during the circulation process, continuously cools the lamp assembly 60 to promote the growth of the plants in the cultivation bed 50 .

[0409] In addition, during the repeated air circulation process, the air passing through the evaporator 31 and the heater 102 can be heated or cooled, and the cultivation space 11 can be kept at a set temperature as a whole by continuously and uniformly heating and cooling the interior of the cultivation space 11.

[0410] [Another embodiment: three or more layers of cultivation beds / multiple evaporators]

[0411] In addition, in addition to the aforementioned embodiments, the present invention may also have various other embodiments. For example, the housing may have a structure that is longer in the vertical direction and may have a larger number of cultivation beds and lamp assemblies.

[0412] Hereinafter, this will be described with reference to the accompanying drawings. In addition, the same reference numerals are used for the same structures in another embodiment of the present invention as those in the above-mentioned embodiment, and detailed description thereof will be omitted.

[0413] Figure 50 This is a diagram showing the internal structure of a plant cultivation device according to another embodiment of the present invention.

[0414] As shown in the figure, another embodiment of the plant cultivation device 1 of the present invention has a vertically elongated structure. Furthermore, a cultivation space is formed inside the housing 10 , and a plurality of cultivation beds 50 and corresponding lamp assemblies 60 may be disposed within the cultivation space 11 .

[0415] In addition, the water tank 40 is arranged at the front of the lowermost end of the shell 10, and a water supply component such as a water pump 494 and a valve is arranged at the rear. A mechanical room 12 separated by an additional partition wall is arranged behind the water supply component, and the compressor 32 can be arranged on the inner side of the mechanical room 12.

[0416] A plurality of cultivation beds 50 and light assemblies 60 may be provided within the cultivation space 11. Furthermore, only the light assemblies 60 may be provided on the uppermost surface of the cultivation space 11, and the cultivation beds 50 may be provided at the lowermost portion of the cultivation space 11 to shield the water tank 40 and the water pump 494. The light assemblies 60 and cultivation beds 50 may be arranged vertically in the space excluding the space between the uppermost and lowermost portions of the cultivation space 11.

[0417] Furthermore, the length of the housing 10 becomes longer. In the above-mentioned case, if the evaporator 31 and the heater 102 are only provided on one side, the entire interior of the housing 10 cannot be cooled or heated.

[0418] Therefore, a blower assembly 80 may be provided at the rear side of the space between the cultivation bed 50 and the lamp assembly 60 above. Furthermore, an evaporator 31 and a heater 102 may be provided in sequence behind the blower assembly 80. The evaporator 31 and heater 102 may be provided in each space where the cultivation bed 50 and the lamp assembly 60 are provided.

[0419] Due to the above-described structure, even when the length of the housing 10 is increased, each space where the cultivation bed 50 is provided can be effectively maintained at a set temperature.

[0420] In addition, multiple heaters 102 and evaporators 31 can be installed in each space to independently adjust the temperature of the corresponding space. Therefore, each space divided by the cultivation bed 50 is kept at a different temperature, thereby providing an optimal temperature environment suitable for various plants.

Claims

1. A plant cultivation device, characterized in that: include: The shell forms a cultivation space; a plurality of cultivation beds arranged in an up-down direction inside the cultivation space for cultivating plants; a plurality of lamp assemblies, respectively disposed above the plurality of cultivation beds and irradiating light toward the upper surfaces of the cultivation beds; a water tank for storing water supplied to the cultivation bed; a heat exchanger disposed on a rear surface of the cultivation space and regulating the temperature of the cultivation space; as well as The blower assembly is arranged between the cultivation bed and the lamp assembly in front of the heat exchanger, so that the heat exchanged air circulates in the space between the cultivation bed and the lamp assembly. The blower assembly comprises: Air supply fan; as well as The blower body is equipped with the blower fan and guides the flow of the discharged air. A discharge guide is formed at an upper end of the blower body, and the discharge guide guides discharged air toward a lower surface of the lamp assembly.

2. The plant cultivation device according to claim 1, characterized in that The heat exchanger is formed of a plate-shaped roll-bonded heat exchanger, and is disposed on an inner side surface of the cultivation space so as to overlap with a plurality of spaces partitioned by the plurality of cultivation beds.

3. The plant cultivation device according to claim 2, characterized in that Also includes: A heater is provided on an outer side surface of the cultivation space and is arranged in a region corresponding to the heat exchanger.

4. The plant cultivation device according to claim 1, wherein: The blower assembly comprises: The blower cover is provided on the front surface of the blower body and shields the rear wall surface between the upper surface of the cultivation bed and the lower surface of the lamp assembly.

5. The plant cultivation device according to claim 4, characterized in that , An outlet for discharging air is formed at the upper end of the blower assembly facing the lamp assembly. An inlet for sucking air is formed at a lower end of the blower assembly facing the cultivation bed.

6. The plant cultivation device according to claim 5, characterized in that: The blower main body comprises: The air supply fan mounting portion is formed in the center of the air supply machine body and is used to mount the air supply fan. The air guide is formed on both left and right sides of the blower fan mounting portion and is formed so as to be inclined upward as it extends outward.

7. The plant cultivation device according to claim 6, characterized in that: The blower body further includes a plurality of ribs arranged at regular intervals along an extending direction of the air guide and extending from the air guide to the outlet.

8. The plant cultivation device according to claim 7, characterized in that The discharge guide portion is formed into an inclined surface or a circular surface so as to guide the air flowing from the bottom to the top toward the front.

9. The plant cultivation device according to claim 7, characterized in that: The blower cover shields the area between the rear end of the lamp assembly and the rear end of the cultivation bed.

10. The plant cultivation device according to claim 9, characterized in that: A bent portion is formed at a lower end of the blower cover. The bent portion is spaced rearward from a rear end of the cultivation bed and extends to a position lower than an upper end of the cultivation bed.

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