JP2014161298A - Hydroponics apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hydroponics apparatus capable of efficiently controlling temperature in cultivation space of plants.SOLUTION: A hydroponics apparatus 1 comprises: a hydroponics unit having a storage tank 42, which is arranged for a lower side of a closed space and pools nutrient water W for a plant P, and a Peltier element 44 which controls the temperature of the nutrient water; an illumination device 52, which is arranged for an upper side of the closed space and radiates light toward the hydroponics unit; a first air intake port 26 arranged for a down wall 24; a first air outlet port 30 arranged for an upper side of a rear part 20; a ventilation fan 54 arranged at a position corresponding to the first air outlet port 30; a second air intake port 40 arranged for a lower side of a front part 34; a second air outlet port 32 arranged for a lower side of the rear part 20; and a ventilation fan 46 arranged at a position corresponding to the second air outlet port 32.

Description

  The present invention relates to a hydroponic cultivation apparatus.

  As a conventional hydroponic cultivation apparatus, for example, one described in Patent Document 1 is known. The hydroponic cultivation apparatus described in Patent Document 1 includes a plurality of cultivation rooms inside a box-shaped main body, and includes a light source provided in the cultivation room and a temperature adjustment unit that adjusts the temperature of the cultivation room. Have. In this hydroponic cultivation apparatus, the temperature adjusting means adjusts the temperature of the cultivation room by causing the air whose temperature is adjusted in the heat exchange room to circulate between the heat exchange room and the cultivation room.

JP 2012-147730 A

  In the said conventional apparatus, the temperature of a cultivation room rises with the heat load by lighting of the light source provided in the cultivation room. Therefore, in the conventional apparatus, in order to keep the temperature of the cultivation room within a certain range, the temperature of the cultivation room must be adjusted in consideration of heat generated from the light source. It was not efficient.

  An object of this invention is to provide the hydroponic cultivation apparatus which can perform control of the temperature of the cultivation space of a plant efficiently.

  The hydroponic cultivation apparatus according to the present invention is a hydroponic cultivation apparatus having a closed space defined by an upper part, a lower part, and four side parts, and is disposed on the upper side of the closed space, and is directed toward the lower side. Among the four sides, a lighting device that irradiates the water, a storage tank that is disposed on the lower side of the closed space and has a temperature control unit that controls the temperature of the nutrient solution, and a storage tank that stores the nutrient solution of the plant A first air intake port disposed on the upper side of one of the side portions, a first air exhaust port disposed on the upper side of the side portion opposite to the side portion on which the first air intake port is disposed, and a first air exhaust port Opposite to the first exhaust means disposed at a position corresponding to the second exhaust port disposed on the lower side of one of the four side portions, and the side portion on which the second intake port is disposed. A second exhaust port disposed on a lower side of the side portion to be performed, and a second exhaust unit disposed at a position corresponding to the second exhaust port.

  In this hydroponic cultivation device, the first intake port and the first exhaust port are arranged on the upper side where the lighting device is arranged, and the second intake port and the second exhaust port are arranged on the lower side where the temperature control unit is arranged. Has been. Thereby, the heat generated from the lighting device is exhausted by the first exhaust means via the ventilation path formed by the first intake port and the first exhaust port. Further, the heat generated from the temperature control unit is exhausted by the second exhaust means through the ventilation path formed by the second intake port and the second exhaust port. Therefore, in the hydroponic cultivation apparatus, a ventilation path corresponding to each heat source is formed, and heat generated from the heat source can be released by each ventilation path. Therefore, in the hydroponic cultivation apparatus, the heat generated from the heat source can be prevented from diffusing in the closed space, and the influence of heat on the plant cultivation space can be reduced, so that the temperature of the plant cultivation space can be controlled. Can be performed efficiently.

  In one embodiment, the first air inlet and the first air outlet may be disposed within a predetermined distance below the lighting device. With this configuration, in the hydroponic cultivation device, heat generated from the lighting device can be further suppressed from diffusing into the plant cultivation space below the lighting device.

  In one embodiment, the 1st inlet and the 1st exhaust may be arranged above the assumption height position of the plant grown. With this configuration, the hydroponic cultivation device can further suppress the diffusion of heat generated from the lighting device into the plant cultivation space.

  In one embodiment, it is provided with a drawer part that can be accommodated and pulled out in a closed space, and the drawer part is formed integrally with the side part on which the second air inlet is arranged and the side part, and is hydroponically cultivated. The second exhaust means arranged at a position corresponding to the second exhaust port may be installed on the mounting unit. With this configuration, in the hydroponic cultivation apparatus, the drawer can be pulled out from the closed space, so that the maintainability of the hydroponic cultivation device can be improved. Moreover, in the hydroponic cultivation apparatus, the second exhaust means is disposed on the placement unit together with the hydroponic cultivation device. Thereby, in a hydroponic cultivation apparatus, since the 2nd exhaust means is arrange | positioned in the vicinity of a temperature control part, the heat | fever generated from the temperature control part can be exhausted suitably.

  In one embodiment, a window is provided on the side of the drawer. With this configuration, in the hydroponic cultivation apparatus, the state of the plant can be confirmed in a state where the drawer portion is accommodated in the closed space.

  In one embodiment, a caster may be provided in the lower part. With this configuration, the hydroponic cultivation apparatus can be easily moved.

  ADVANTAGE OF THE INVENTION According to this invention, control of the temperature of the cultivation space of a plant can be performed efficiently.

It is a perspective view which shows the hydroponic cultivation apparatus which concerns on one Embodiment. It is the figure which looked at the hydroponic cultivation apparatus shown in FIG. 1 from the front. It is the figure which looked at the hydroponic cultivation apparatus shown in FIG. 1 from the back surface. It is a figure which shows the cross-sectional structure in the IV-IV line | wire in FIG. It is a figure which shows the cross-sectional structure in the VV line | wire in FIG. It is a figure which shows the cross-sectional structure in the VI-VI line in FIG. It is a figure which shows the state which pulled out the drawer part in FIG.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or equivalent elements will be denoted by the same reference numerals, and redundant description will be omitted.

  FIG. 1 is a perspective view showing a hydroponic cultivation apparatus according to an embodiment. FIG. 2 is a front view of the hydroponic cultivation apparatus shown in FIG. FIG. 3 is a view of the hydroponic cultivation apparatus shown in FIG. 1 as viewed from the back. FIG. 4 is a diagram showing a cross-sectional configuration taken along line IV-IV in FIG. FIG. 5 is a diagram showing a cross-sectional configuration taken along line VV in FIG. 6 is a diagram showing a cross-sectional configuration taken along line VI-VI in FIG. FIG. 7 is a view showing a state in which the drawer portion is pulled out in FIG.

  The hydroponics apparatus 1 shown in each figure is arrange | positioned, for example in a kitchen, and can cultivate the plant P (refer FIG. 1). The hydroponic cultivation apparatus 1 can be installed in a room in a house or various office spaces other than the kitchen. That is, the hydroponic cultivation apparatus 1 can cultivate the plant P at any place without worrying about the installation place.

  As shown in FIG. 1, the hydroponic cultivation apparatus 1 includes a housing 3, a drawer unit 5, a hydroponic unit 7, a lighting unit 9, and a control unit 10.

  The housing 3 has a rectangular parallelepiped shape, and includes a top surface portion (upper portion) 12, a bottom surface portion (lower portion) 14 that faces the top surface portion 12, and a pair of side surface portions that connect the top surface portion 12 and the bottom surface portion 14. (Side parts) 16, 18, a back part (side part) 20, and a partition part (lower part) 22. The front side facing the back surface portion 20 forms an opening without being covered with a face material or the like in order to insert the drawer portion 5.

  The upper surface portion 12, the lower surface portion 14, the side surface portions 16 and 18, the back surface portion 20, and the partition portion 22 are made of a resin such as acrylic or vinyl chloride, or a wooden plate-like member. The partition portion 22 is disposed at a substantially central portion in the height direction of the side surface portions 16 and 18, and is provided across the side surface portion 16 and the side surface portion 18. The interior of the housing 3 is partitioned into a first space S1 and a second space S2 by a partitioning portion 22.

  The housing 3 has a first opening K1 and a second opening K2 in two upper and lower stages. The first opening K <b> 1 is formed by the upper surface portion 12, the pair of side surface portions 16 and 18, and the partition portion 22, and opens to the front side (front) of the housing 3. The second opening K2 is formed by the lower surface portion 14, the pair of side surface portions 16 and 18, and the partition portion 22, and opens forward.

  The upper surface portion 12 is provided with a downward wall 24 that hangs downward from the inner surface 12 a of the upper surface portion 12. The descending wall 24 is disposed on the front end side of the upper surface portion 12 and extends along the width direction of the housing 3 (opposite direction of the pair of side surface portions 16 and 18). The position of the lower end of the down wall 24 is located below the height position of the illumination device 52 described later.

  As shown in FIG. 2, the first wall 26 is provided in the descending wall 24. The first air inlet 26 is formed through a part of the descending wall 24 (front surface as shown in FIG. 2), and has a substantially rectangular shape. The first air inlet 26 is disposed on the side surface portion 16 side. The 1st inlet 26 is arrange | positioned above the assumption height position H (refer FIG. 5) of the plant P to be cultivated within the range of the predetermined distance below the illuminating device 52. As shown in FIG. 5, the assumed height position H is set in the vicinity of a position corresponding to the lower end side of the ventilation fan 54, for example, about 20 cm to 30 cm from the lid portion 42 c of the storage tank 42 of the hydroponic cultivation unit 7. It is the height position.

  As shown in FIG. 5, the partition portion 22 has a substantially L-shaped cross section, and includes a main body portion 23 a that partitions the first space S <b> 1 and the second space S <b> 2, and a front end (front end) of the main body portion 23 a. And a downward wall 23b that hangs downward. The descending wall 23 b extends along the width direction of the housing 3. A first intake port 28 is provided in the down wall 23b. The first air inlet 28 is formed through a part of the descending wall 23b and has a substantially rectangular shape. The first intake port 28 is disposed on the side surface portion 16 side, and is disposed at the same position as the first intake port 26 in the vertical direction.

  The 1st inlet 28 is arrange | positioned above the assumed height position H of the plant P to be cultivated within the range of predetermined distance below the illuminating device 52 similarly to the 1st inlet 26. Yes.

  As shown in FIGS. 3 to 6, the back surface portion 20 has a first exhaust port 30 and a second exhaust port 32 in each of the upper and lower stages. The first exhaust port 30 and the second exhaust port 32 are provided in each of the first space S1 and the second space S2. The first exhaust port 30 has, for example, a circular shape and is formed through the back surface portion 20. The 1st exhaust port 30 is arrange | positioned above the assumption height position H of the plant P to be cultivated within the range of predetermined distance below from the illuminating device 52. That is, the first exhaust port 30 is disposed at the same height as the first intake port 26 (first intake port 28). It is preferable that the 1st exhaust port 30 is a position near the inner surface 12a of the upper surface part 12 (lower surface 22b of the partition part 22).

  The first exhaust port 30 is disposed diagonally to the first intake port 26 (first intake port 28). That is, the 1st exhaust port 30 is arrange | positioned at the side part 18 side, and the 1st inlet 26 (1st inlet 28) is arrange | positioned at the side part 16 side. The first intake port 26 (the first intake port 28), the first exhaust port 30, and the air flow path connecting the first intake port 26 (the first intake port 28) and the first exhaust port 30 provide the first. A ventilation path is formed above the space S1 (second space S2).

  The second exhaust port 32 has, for example, a substantially rectangular shape, and is formed through the back surface portion 20. The 2nd exhaust port 32 is located in the partition part 22 (lower surface part 14) side, and is arrange | positioned under the 1st exhaust port 30, ie, the side part 18 side.

  The lower surface portion 14 is provided with casters C1, C2, C3, and C4. The casters C <b> 1 to C <b> 4 are arranged at the four corners of the lower surface part 14. In addition, the control unit 10 is disposed on the outer surface 14 b of the lower surface part 14.

  The drawer 5 is provided in each of the first space S1 and the second space S2 of the housing 3 so as to be accommodated and pulled out. The drawer part 5 has a front part 34 and a placement part 36 on which the hydroponic cultivation unit 7 is arranged. The drawer portion 5 is movably provided by rails R1 and R2 disposed on the side surface portions 16 and 18, respectively. The rails R1 and R2 extend along the horizontal direction from the front side to the back side 20 at the side surface parts 16 and 18, and the drawer part 5 moves horizontally along the rails R1 and R2. Accordingly, the drawer portion 5 housed in the housing 3 is configured to be able to repeatedly perform the operation of being pulled out in front of the housing 3 and housed in the housing 3.

  Specifically, in the drawer portion 5, the state shown in FIGS. 5 and 6 is a state accommodated in the second space S2 (first space S1), and the state shown in FIG. 7 is the second space S2 (first space). It is in a state drawn out from the space S1).

  The front surface portion 34 covers the first opening K1 (second opening K2) when the drawer portion 5 is stored in the first space S1 (second space S2) of the housing 3. The upper end portion of the front surface portion 34 is located above the lower end portion of the descending wall 24 (23b) and is in contact with the descending wall 24 (23b). At this time, the front surface portion 34 and the descending wall 24 (23b) constitute side portions that define a closed space. That is, as shown in FIG. 5, when the drawer portion 5 is accommodated in the first space S <b> 1, the upper surface portion 12, the side surface portions 16 and 18, the back surface portion 20, and the front surface portion 34 and the descending wall 24 are formed. The first space S1 is closed by the side surface portion. Similarly, when the drawer portion 5 is accommodated in the second space S2, the partition portion 22, the side surface portions 16 and 18, the back surface portion 20, and the side portion including the front surface portion 34 and the descending wall 23b, The space S2 is a closed space.

  The front part 34 has a window part 38 and a second air inlet 40. The window portion 38 is configured by arranging a transparent plate 38b on a substantially rectangular window frame 38a. The window portion 38 is provided along the width direction of the front surface portion 34. With the window part 38, the plant P can be visually observed in the state in which the drawer part 5 is accommodated in the housing 3.

  The second air inlet 40 is disposed below the window portion 38. The second air inlet 40 is provided along the width direction of the front surface portion 34. (The second intake port 40 is composed of a first intake hole 40a that penetrates the front surface portion 34, and a second intake hole 40b that penetrates the base front plate for reinforcement. 40a and the second air intake hole 40b communicate with each other, the first air intake hole 40a is located in front of the front surface portion 34, and the second air intake hole 40b is located behind the first air intake hole 40a. (The height dimension (width) of the first intake hole 40a is smaller than that of the second intake hole 40b.)

  The mounting portion 36 is a plate-like member that constitutes the floor surface of the drawer portion 5 and extends substantially orthogonal to the front surface portion 34, and is connected to the lower end side of the front surface portion 34. When the drawer part 5 is accommodated in the first space S <b> 1 (second space S <b> 2), the mounting part 36 is slightly spaced from the upper surface 22 a (the inner surface 14 a of the lower surface part 14) of the partition part 22. Opposite. The mounting portion 36 is configured not to rub against the upper surface 22a of the partition portion 22 (the inner surface 14a of the lower surface portion 14) even when the drawer portion 5 moves horizontally along the rails R1 and R2.

  The hydroponic unit 7 is disposed on the placement unit 36 of the drawer unit 5. The hydroponics unit 7 is provided in the drawer part 5 so as to be attachable and detachable. The hydroponic unit 7 includes a storage tank (hydroponic culture device) 42 that stores plant nutrient water (a nutrient solution) W, and a Peltier element (temperature control unit) that controls the temperature of the nutrient water W in the storage tank 42. 44 and a ventilation fan (second exhaust means) 46. As shown in FIG. 6, the storage tank 42 is accommodated in a cross-sectional container 41 placed on the placement unit 36.

  The storage tank 42 is a tray-like container, and includes a bottom part 42a, a side part 42b extending upward from an edge of the bottom part 42a, and a lid part 42c. The storage tank 42 is preferably formed of a material such as a foam of a resin such as styrene resin or urethane resin. The lid part 42c is arranged so as to cover the opening formed by the side part 42b. The lid portion 42c is a plate-like member, has a through hole, and has a plurality of support holes 43 for fitting a medium pot or the like (not shown) that is a container for storing the medium of the plant P.

  A cooling plate 48 made of, for example, an aluminum material is disposed below the storage tank 42 so as to be in surface contact with the bottom 42a. The cooling plate is in surface contact with a heat transfer plate 50 such as a heat lane (registered trademark), and the heat transfer plate 50 is connected to the Peltier element 44. That is, the Peltier element 44 controls the temperature of the nutrient water W in the storage tank 42 via the heat transfer plate 50 and the cooling plate 48. The Peltier element 44 is disposed on the heat radiating fin F (not shown in cross section in FIGS. 5 and 7).

  The ventilation fan 46 is hydroponically moved without transferring the heat generated from the Peltier element 44 in a controlled state for cooling the cooling plate 48 to the cultivation layer PL in the first space S1 and the second space S2, as will be described later. It exhausts outside the cultivation apparatus 1 (housing 3). The ventilation fan 46 is disposed on the mounting portion 36 and is adjacent to the heat radiation fin F on which the Peltier element 44 is disposed. The heat of the Peltier element 44 is transmitted to the radiation fin F, and the ventilation fan 46 exhausts the heat of the radiation fin F.

  The ventilation fan 46 is disposed at a position corresponding to the second exhaust port 32 in the mounting portion 36. In this embodiment, the ventilation fan 46 is arrange | positioned at the rear part and the side part 18 side of the hydroponic cultivation unit 7 (drawer part 5). The position corresponding to the second exhaust port 32 means that at least a part of the ventilation fan 46 is connected to the second exhaust port 32 when the drawer portion 5 is housed in the housing 3 and viewed from the back surface portion 20 side. In other words, the ventilation fan 46 is located at a position overlapping the second exhaust port 32. The ventilation fan 46 takes in air from the second air inlet 40 and exhausts heat generated from the Peltier element 44 from the second air outlet 32.

  The lighting unit 9 includes a lighting device 52 and a ventilation fan (first exhaust unit) 54. The illumination device 52 irradiates light toward the hydroponic cultivation unit 7. The lighting device 52 is disposed on the inner surface 12a of the upper surface portion 12 (the lower surface 22b of the partition portion 22). The illumination device 52 includes a plurality of LEDs (Light Emitting Diodes) 52a that are light sources. The LED 52a has an optical spectrum characteristic that increases the light intensity in a wavelength region including, for example, wavelengths of 440 nm and 660 nm. In the illumination device 52, each LED 52a is provided with a substantially conical reflecting portion 52b. The light source may be, for example, a fluorescent lamp or an organic EL.

  The ventilation control unit (not shown) of the lighting unit 9 controls the operation of the ventilation fan 54 so that the temperature of the hot air reservoir HL does not increase excessively, so that the temperature becomes a constant temperature (for example, 20 ° C. or less). For example, a temperature detector (not shown) may be provided in the lighting unit 9 so as to operate at a predetermined temperature. In another embodiment of the ventilation control unit of the lighting unit 9, the lighting fan is turned on (turned off) and the ventilation fan 54 is operated (stopped), and the ventilation fan is turned on (turned off) and the ventilation fan is turned on (stopped). )

  The heat generated from the ventilation fan 54 and the lighting device 52 is exhausted to the outside of the hydroponic cultivation device 1. The ventilation fan 54 is disposed at a position corresponding to the first exhaust port 30. The ventilation fan 54 sucks air from the first air inlet 26 (first air inlet 28), and collects heat generated from the lighting device 52 without moving the first space S1 and the second space S2 to the cultivation layer PL. The heat generated in the layer HL is exhausted directly from the first exhaust port 30. In the present embodiment, the ventilation fan 54 operates in conjunction with the lighting device 52 being turned on and off, and is activated when the lighting device 52 is turned on.

  The control unit 10 includes a circuit board that controls energization of the Peltier element 44, a circuit board that controls energization of the ventilation fan 46, and the like.

  The Peltier element 44 is energized based on a temperature detected by a temperature detection unit (not shown) provided in the storage tank 42 of the hydroponic cultivation unit 7, and the nutrient water W in the storage tank 42 is at a constant temperature (for example, The heat transfer plate 50 at the bottom 42a of the storage tank 42 is heated or the cooling plate 48 is cooled so that the temperature is between 15 ° C and 20 ° C. The temperature detection unit may be a temperature sensor that measures the temperature around the storage tank 42.

  The ventilation fan 46 operates by detecting the temperature around the Peltier element 44 with a temperature sensor. Thus, the heat generated from the energized Peltier element 44 in the cooling control state is exhausted from the second exhaust port 32.

  For example, the Peltier element 44 enters a cooling control state when the temperature detection unit reaches 20 ° C., which is the upper limit of the set temperature, and the Peltier element 44 itself cools the cooling plate 48 when energized. Heat is generated and the air around the Peltier element 44 exceeds the set temperature (20 ° C.). At this time, the temperature sensor of the ventilation fan 46 senses, activates the ventilation fan 46, and exhausts it from the second exhaust port 32 to the outside of the housing 3.

  On the other hand, when the temperature detection unit falls below 15 ° C. which is the lower limit of the set temperature, the Peltier element 44 is in a heating control state, and the heat transfer plate 50 is switched by switching the polarity of the Peltier element 44 and energizing. The Peltier element 44 itself cools and takes away the surrounding heat. At this time, since the temperature around the Peltier element 44 decreases, warm air outside the housing 3 is introduced from the second air inlet 40 by natural convection.

  In the hydroponic cultivation apparatus 1 of the present embodiment having the above-described configuration, the heat accumulation layer HL and the cultivation layer PL are formed with the assumed height position H of the plant P as a boundary in the first and second spaces S1 and S2. Is done. The heat accumulation layer HL is formed between the inner surface 12a of the upper surface portion 12 (the lower surface 22b of the partition portion 22) and the assumed height position H of the plant P, and is a layer in which heat generated by the lighting device 52 accumulates. The cultivation layer PL is formed between the surface of the lid portion 42 c of the storage tank 42 and the assumed height position H of the plant P.

  Thus, in the hydroponic cultivation apparatus 1 of the present embodiment, the air around the lighting device 52 (heat accumulation layer HL) that is a heat source in the hydroponic cultivation apparatus 1 is exhausted by the ventilation fan 54 to control the temperature rise. This provides an optimum temperature environment for cultivation of the plant P.

  In addition, even if the heat accumulation layer HL is exhausted, the temperature of the cultivation layer PL becomes hot when the temperature in the cultivation layer PL exceeds the optimum temperature for plant cultivation, or becomes lower than the optimum temperature due to cold in winter. There is. In this case, by heating or cooling the storage tank 42 of the hydroponic cultivation unit 7 via the heat transfer plate 50 and the cooling plate 48 by the Peltier element 44, the nutrient water W itself is kept at an appropriate temperature, and the plant P is I try not to wither.

  Furthermore, in the hydroponic cultivation apparatus 1 of the present embodiment, the Peltier element 44 that is the temperature control unit senses the heat generated by the Peltier element 44 itself when the nutrient water W is cooled, and the ventilation fan 46 that is the second exhaust means. Activates and exchanges heat with external air to exhaust heat. When the Peltier element 44 heats the nutrient water W, external warm air is introduced from the second air inlet 40 as the Peltier element 44 itself deprives the surrounding heat.

  As described above, the hydroponic cultivation apparatus 1 of the present embodiment has the first intake port 26 (first intake port 28) and the first exhaust on the upper surface part 12 (partition unit 22) side where the lighting device 52 is disposed. The second intake port 40 and the second exhaust port 32 are disposed on the side of the partition portion 22 (lower surface portion 14) where the port 30 is disposed and the Peltier element 44 is disposed. Thereby, in the hydroponic cultivation device 1, the heat generated from the lighting device 52 is supplied to the ventilation fan 54 via the ventilation path formed by the first intake port 26 (first intake port 28) and the first exhaust port 30. Is exhausted to the outside. Thereby, in the hydroponic cultivation apparatus 1, the heat of the heat reservoir layer HL can be released to the outside. Further, the heat generated from the Peltier element 44 is exhausted to the outside by the ventilation fan 46 through the ventilation path formed by the second intake port 40 and the second exhaust port 32.

  Therefore, in the hydroponic cultivation apparatus 1, a ventilation path corresponding to each heat source is formed, and heat generated from the heat source can be released by each ventilation path. Therefore, in the hydroponic cultivation apparatus 1, the heat generated from the heat source can be prevented from diffusing in the first and second spaces S1 and S2 that are closed spaces, and the plant P is transferred to the cultivation layer PL (cultivation space). Since the influence of heat can be reduced, the temperature of the cultivation layer PL of the plant P can be controlled efficiently.

  In the present embodiment, the first intake port 26 (first intake port 28) and the first exhaust port 30 are within a predetermined distance downward from the lighting device 52, and the assumed height of the plant P to be cultivated. It is arranged above the position H. Thereby, in the hydroponics apparatus 1, it can suppress further that the heat | fever which generate | occur | produces from the illuminating device 52 spread | diffuses to the cultivation layer PL of the plant P below the illuminating device 52. FIG.

  In the present embodiment, the hydroponic cultivation apparatus 1 includes a drawer unit 5. Thereby, in the hydroponic cultivation apparatus 1, since the drawer | drawing-out part 5 can be pulled out from 1st and 2nd space S1, S2, the improvement of the maintainability in the hydroponic cultivation unit 7 can be aimed at. In the hydroponic cultivation apparatus 1, the ventilation fan 46 is disposed on the placement unit 36 together with the Peltier element 44. Thereby, in the hydroponic cultivation apparatus 1, since the ventilation fan 46 is arrange | positioned in the vicinity of the Peltier element 44, the heat generated from the Peltier element 44 can be suitably exhausted.

  In this embodiment, the hydroponic cultivation apparatus 1 is provided with the casters C <b> 1 to C <b> 4 in the housing 3. Thereby, the hydroponic cultivation apparatus 1 can move easily.

  In this embodiment, the hydroponics unit 7 can be removed from the drawer part 5. Thereby, the drawer | drawing-out part 5 can be used as a storage shelf.

  The present invention is not limited to the above embodiment. For example, the positions and the number of the first intake ports 26 and 28 and the first exhaust ports 30 may be set as appropriate. Further, the positions and the number of the second intake ports 40 and the second exhaust ports 32 may be set as appropriate.

  In the said embodiment, although the structure by which the caster C1-C4 was provided in the housing | casing 3 of the hydroponic cultivation apparatus 1 was demonstrated to an example, the caster C1-C4 does not need to be provided. Moreover, in the said embodiment system, although the structure by which the hydroponic cultivation apparatus 1 is provided independently was demonstrated to an example, a hydroponic cultivation apparatus may be provided as a part of chitin set, and a storage shelf (furniture) ).

  In the said embodiment, although the structure by which 1st and 2nd space S1, S2 is formed in the hydroponic cultivation apparatus 1 was demonstrated to an example, if the number of the space formed in a hydroponic cultivation apparatus is set suitably. Good.

  In the above-described embodiment, the configuration including the drawer portion 5 has been described as an example. However, the configuration without the drawer portion 5 may be used. For example, the hydroponic cultivation apparatus may be provided with a double door so as to cover the opening of the housing. Moreover, in addition to the drawer | drawing-out part 5, the hydroponic cultivation apparatus may be provided with the door of a double door.

  DESCRIPTION OF SYMBOLS 1 ... Hydroponic cultivation apparatus, 5 ... Drawer part, 7 ... Hydroponic cultivation unit (hydroponic cultivation machine), 12 ... Upper surface part (upper part), 14 ... Lower surface part (lower part), 16, 18 ... Side surface part (side part) ), 20... Back portion (side portion) 22. Partition portion (lower portion) 23 b, 24... Projection portion (side portion) 26, 28... First intake port, 30. Exhaust port, 34 ... front part (side part), 36 ... mounting part, 40 ... second intake port, 44 ... Peltier element (temperature control part), 46 ... ventilation fan (second exhaust means), 52 ... lighting device 54, ventilation fans (first exhaust means), C1 to C4, casters, S1, S2 ... first and second spaces (closed spaces), W ... nourishing water (nourishing liquid).

Claims (6)

A hydroponic cultivation apparatus having a closed space defined by an upper part, a lower part and four side parts,
An illumination device that is disposed on the upper side of the closed space and irradiates light toward the lower side;
A hydroponics device disposed on the lower side of the closed space and having a storage tank for storing the nutrient solution of the plant and a temperature control unit for controlling the temperature of the nutrient solution;
A first air inlet disposed on the upper side of one of the four side portions;
A first exhaust port disposed on the upper side of the side portion facing the side portion on which the first intake port is disposed;
A first exhaust means disposed at a position corresponding to the first exhaust port;
A second air inlet disposed on the lower side of one of the four side parts;
A second exhaust port disposed on the lower side of the side portion opposite to the side portion on which the second intake port is disposed;
A hydroponic cultivation apparatus comprising: a second exhaust unit disposed at a position corresponding to the second exhaust port.   The hydroponic cultivation apparatus according to claim 1, wherein the first intake port and the first exhaust port are disposed within a predetermined distance downward from the illumination device.   The hydroponic cultivation apparatus according to claim 1 or 2, wherein the first intake port and the first exhaust port are disposed above an assumed height position of the plant to be cultivated. A drawer portion provided to be able to be accommodated and pulled out in the closed space;
The drawer portion is composed of the side portion on which the second air inlet is disposed, and a placement portion that is formed integrally with the side portion and on which the hydroponic device is placed,
The hydroponic cultivation apparatus according to any one of claims 1 to 3, wherein the second exhaust unit disposed at a position corresponding to the second exhaust port is installed in the mounting unit.   The hydroponic cultivation apparatus of Claim 4 with which the window part is provided in the said side part of the said drawer | drawing-out part.   The hydroponic cultivation apparatus according to any one of claims 1 to 5, wherein a caster is provided in the lower part.

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