A culture device for culturing potato tissue

Abstract

The present invention relates to a culture device for culturing potato tissue, the culture device comprising: a culture table including a plurality of vertical frame parts erected to be spaced apart from each other and a horizontal frame part connecting the vertical frame parts; a shelf part slidably movable on the horizontal frame part, a culture container containing plantlets cultured in a culture medium being placed on the shelf part, and the shelf part including a plurality of holes on a bottom surface; a light emitting diode (LED) light source unit installed on the culture table and irradiating the culture container with a light beam; a condensation measuring unit installed in the shelf part and measuring condensation generated in the culture container by irradiating the culture container with infrared rays; and a cooling unit installed in the culture table, electrically connected to the condensation measuring unit, and circulating cooling water through the LED light source unit according to condensation information measured by the condensation measuring unit, thereby controlling the temperature of the LED light source unit.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority under 35 U.S.C. §119(a) to Korean Patent Application No. 10-2022-0035622 filed in the Korean Intellectual Property Office on March 22, 2022, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates to a culture device for culturing potato tissue, and more particularly, to a culture device for culturing potato tissue capable of preventing condensation from being generated in a culture container when culturing the potato tissue. Background Art

[0004] Generally, plant tissue culture refers to the growth of plant tissues, organs, cells, etc. by providing necessary nutrients, plant hormones, etc. to the culture container.

[0005] This plant tissue culture technology is being used as an effective technology in various fields, such as large-scale propagation of individuals, molecular breeding, and production of plant materials by large-scale cultivation.

[0006] Meanwhile, in plant tissue culture, a culture container containing a plantlet cultured in a culture medium is provided on a culture table, and the plant tissue is cultured using an artificial light source for photosynthesis installed on the culture table.

[0007] The artificial light source emitting light so that photosynthesis occurs in the plantlets when the plant tissue is cultivated, emits heat itself, and thus the interior of the cultivation table is maintained at a temperature higher than a predetermined temperature.

[0008] In particular, when the artificial light source is overheated, moisture in the culture medium contained in the culture container evaporates due to a rapid temperature rise of the culture table, and condensation occurs to form water droplets on the inner surface of the culture container due to the evaporation of moisture.

[0009] When condensation occurs in the culture container, light transmission efficiency is reduced, so the plant tissue cannot grow properly. In addition, the water droplets condensed on the inner surface of the culture container fall onto the plant tissue, so the plant tissue is secondarily contaminated.

[0010] In order to solve these problems, in the prior art, a blower is installed in the culture table to control the temperature in the culture table by an air circulation method.

[0011] However, in the temperature control method by air circulation according to the related art, the inside of the culture table is contaminated due to wind.

[0012] Background art of the present invention is disclosed in Korean Patent Publication No. 10-1693419 (registered on January 5, 2017, the title of the invention: Table for Plant Tissue Culture). Summary of the invention

[0013] The present invention aims to provide a culture device for culturing potato tissue, which can prevent condensation from occurring in a culture container by cooling heat generated by an artificial light source for photosynthesis and controlling the temperature of a culture table when culturing potato tissue.

[0014] One aspect of the present invention provides a culture device for culturing potato tissue, the culture device comprising: a culture table including a plurality of vertical frame portions erected to be spaced apart from each other and a horizontal frame portion connecting the vertical frame portions; a shelf portion slidably movable on the horizontal frame portion, a culture container containing plantlets cultured in a culture medium being placed on the shelf portion, and the shelf portion including a plurality of holes on a bottom surface; a light emitting diode (LED) light source unit installed on the culture table and irradiating the culture container with a light beam; a condensation measuring unit installed in the shelf portion and measuring condensation generated in the culture container by irradiating the culture container with infrared rays; and a cooling unit installed in the culture table, electrically connected to the condensation measuring unit, and circulating cooling water through the LED light source unit according to condensation information measured by the condensation measuring unit, thereby controlling the temperature of the LED light source unit.

[0015] The culture station may further include an upper plate portion coupled to an upper end portion of each respective vertical frame portion.

[0016] The horizontal frame portion may include an upper frame portion spaced apart from the upper plate portion and disposed below the upper plate portion, and a lower frame portion spaced apart from the upper frame portion and disposed below the upper frame portion.

[0017] The shelf part may include: a first shelf portion slidably coupled to the upper frame portion; and a second shelf portion slidably coupled to the lower frame portion.

[0018] The LED light source unit may include: a first light source unit installed on a bottom surface of the upper plate portion; and a second light source unit installed below the first shelf portion.

[0019] The coagulation measuring unit may include: a light emitting unit which is installed on a first surface inside the shelf portion and irradiates the outer surface of the culture container with infrared rays; a light receiving unit which is installed on a second surface inside the shelf portion and detects the infrared rays irradiated from the light emitting unit and transmitted through the culture container; and a light quantity measuring module which measures the light quantity of the infrared rays detected by the light receiving unit.

[0020] The cooling unit may include: a circulation pump, which includes an inlet and an outlet, cooling water is sucked through the inlet and the cooling water is discharged through the outlet, and the circulation pump pumps the cooling water so that the cooling water circulates from the outlet to the inlet; a heat dissipation unit, which is installed on the inlet side of the circulation pump and dissipates the heat of the cooling water sucked into the circulation pump; and a cooling water delivery pipeline, which is arranged to pass through the LED light source unit and is connected to the outlet of the circulation pump and the heat dissipation unit to deliver the cooling water.

[0021] The culture apparatus may further include: a culture container fixing unit that fixes the culture container to the shelf portion using an attractive force between the culture container and the shelf portion.

[0022] The culture container fixing unit may include: an iron plate provided on a bottom surface outside the culture container; and an electromagnet provided on a bottom surface outside the shelf portion.

[0023] The culture container fixing unit may further include: a switch unit which performs on-off control of a current applied to the electromagnet.

[0024] The switching unit may include: a non-conductor, which is arranged at the rear end of the outside of the electromagnet; and an electrical connecting rod, which contacts the outer surface of the electromagnet to transmit current to the electromagnet, and when the shelf portion is moved toward the front side of the culture platform and exposed, the electrical connecting rod contacts the outer surface of the non-conductor and thereby cuts off the current applied to the electromagnet.

[0025] The shelf portion may be made of a non-metallic material.

[0026] According to the culture device for culturing potato tissue of the present invention, the temperature of the culture table is maintained at a constant level by cooling the heat generated by the light emitting diode (LED) light source unit by means of a condensation measuring unit that measures condensation generated on the inner surface of the culture container by irradiating the culture container with infrared rays in a non-contact manner, thereby preventing condensation from being generated in the culture container when culturing potato tissue. This facilitates the growth of plantlets, thereby improving productivity.

[0027] Furthermore, according to the present invention, by means of a culture container fixing unit that fixes the culture container to the shelf portion by utilizing an attractive force generated by a magnetic force between the culture container and the shelf portion, the culture container can be firmly fixed even when an earthquake occurs or external force is applied to the culture table to prevent the culture container from being easily separated from the shelf portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 and Figure 2 is a perspective view showing a culture device for culturing potato tissue according to an embodiment of the present invention.

[0029] Figure 3 is a front cross-sectional view showing a culture device for culturing potato tissue according to an embodiment of the present invention.

[0030] Figure 4 FIG. 4 is a partial cross-sectional view showing a culture device for culturing potato tissue according to an embodiment of the present invention.

[0031] Figure 5 1 is a side cross-sectional view showing a shelf portion accommodated in a culture table in the culture device for culturing potato tissue according to an embodiment of the present invention.

[0032] Figure 6 1 is a side cross-sectional view showing a shelf portion moved to the front side of a culture table in the culture device for culturing potato tissue according to an embodiment of the present invention.

[0033] Figure 7 1 is a front cross-sectional view showing a light emitting diode (LED) light source unit in a culture device for culturing potato tissue according to an embodiment of the present invention.

[0034] Figure 8 2 is a schematic diagram showing the connection relationship between the coagulation measuring unit and the cooling unit in the culture device for culturing potato tissue according to an embodiment of the present invention. DETAILED DESCRIPTION

[0035] Hereinafter, a culture device for culturing potato tissue according to an embodiment of the present invention will be described with reference to the accompanying drawings. In the process, for the sake of clarity and convenience of description, the thickness of the lines or the size of the components shown in the accompanying drawings may be exaggerated.

[0036] In addition, the terms described below are defined in consideration of the functions in the present invention and may be changed according to the intention or habit of the user or operator. Therefore, the definitions of these terms should be based on the contents of the entire text of this specification.

[0037] Figure 1 and Figure 2is a perspective view showing a culture device for culturing potato tissue according to an embodiment of the present invention, Figure 3 is a front cross-sectional view showing a culture device for culturing potato tissue according to an embodiment of the present invention, Figure 4 is a partial cross-sectional view showing a culture device for culturing potato tissue according to an embodiment of the present invention, Figure 5 is a side sectional view showing a shelf portion accommodated in a culture table in a culture device for culturing potato tissue according to an embodiment of the present invention, Figure 6 is a side sectional view showing a shelf portion moved to the front side of a culture platform in a culture device for culturing potato tissue according to an embodiment of the present invention, Figure 7 is a front cross-sectional view showing a light emitting diode (LED) light source unit in a culture device for culturing potato tissue according to an embodiment of the present invention, and Figure 8 2 is a schematic diagram showing the connection relationship between the coagulation measuring unit and the cooling unit in the culture device for culturing potato tissue according to an embodiment of the present invention.

[0038] refer to Figures 1 to 8 , a culture device for culturing potato tissue according to an exemplary embodiment of the present invention includes a culture table 100 , a shelf portion 200 , an LED light source unit 300 , a coagulation measuring unit 400 , a cooling unit 500 , and a culture container fixing unit 600 .

[0039] The culture table 100 has a prism structure having a rectangular bottom surface and open front, rear, left and right sides, and includes a vertical frame portion 110 , an upper plate portion 120 , and a horizontal frame portion 130 .

[0040] The vertical frame part 110 is a rod-shaped member having a predetermined length, and a plurality of the vertical frame parts 110 are arranged to be spaced apart from each other and vertically stand at a corner position of the culture table 100 .

[0041] The upper plate portion 120 is a flat plate-shaped member, formed to shield an open support portion of the culture table 100, seated on the vertical frame portion 110 erected vertically in the horizontal direction, and connected to each upper end of the vertical frame portion 110 in the horizontal direction.

[0042] The horizontal frame part 130 is orthogonal to the vertical frame part 110 and horizontally connects the vertical frame part 110 in the front-rear direction at the left and right sides of the culture platform 100. The horizontal frame part 130 has a shape with both ends open, an opening formed in its outer surface, and a "C"-shaped cross section.

[0043] The horizontal frame part 130 is disposed at the inner side of the culture table 100 in a state where openings formed in outer surfaces thereof face each other, and is coupled to the outer surface of the vertical frame part 110 .

[0044] The horizontal frame portion 130 may include an upper frame portion 131 and a lower frame portion 132. The upper frame portion 131 is spaced apart from the upper plate portion 120, is disposed below the upper plate portion 120, and is coupled to an upper side of each vertical frame portion 110.

[0045] The lower frame portion 132 is spaced apart from the upper frame portion 131, disposed below the upper frame portion 131, and coupled to a lower side of each vertical frame portion 110. Thus, the upper frame portion 131 and the lower frame portion 132 are arranged to be spaced apart from each other in the vertical direction.

[0046] The shelf part 200 is a flat plate-like member, and a culture container 10 accommodating a plantlet cultured in a culture medium and made of a transparent material is accommodated in the shelf part 200 .

[0047] As an example, the plantlets contained in the culture container 10 are potato tissue cultured plantlets, but the present invention is not limited thereto, and the plantlets may be changed to various types of plant tissue cultured plantlets.

[0048] The shelf portion 200 is made of a non-conductive non-metallic material such as plastic, wood, and glass.

[0049] In addition to the edge of the shelf part 200, a grooved placement part 201 is formed on the upper surface of the shelf part 200. The shelf part 200 may include a plurality of holes 202 formed in a vertical direction so that air can flow to the bottom surface of the placement part 201 for placing the culture container 10.

[0050] The shelf portion 200 is rail-coupled to the inner side of the horizontal frame portion 130 along a horizontal direction.

[0051] The left and right ends of the shelf portion 200 are inserted into the horizontal frame portion 130 through the open front ends of the horizontal frame portions 130 arranged on both sides of the shelf portion 200, and the shelf portion 200 is linearly and slidably moved in the longitudinal direction (axial direction) of the horizontal frame portion 130. That is, the shelf portion 200 is slidably mounted on the horizontal frame portion 130.

[0052] Therefore, the shelf part 200 may be drawn out from the front side of the culture platform 100 or retracted into the front side of the culture platform 100 through the front surface of the culture platform 100 .

[0053] The shelf part 200 may include a first shelf portion 210 and a second shelf portion 220. The first shelf portion 210 is coupled to the upper frame portion 131 by a rail, and the second shelf portion 220 is coupled to the lower frame portion 132 by a rail.

[0054] That is, the first shelf portion 210 is slidably mounted on the upper frame portion 131 , and the second shelf portion 220 is slidably mounted on the lower frame portion 132 .

[0055] Therefore, the first shelf portion 210 and the second shelf portion 220 of the shelf unit 200 are configured as a plurality of stages spaced apart from each other in the vertical direction.

[0056] The LED light source unit 300 is disposed on the culture table 100 and is used to irradiate the culture container 10 placed on the shelf portion 200 with LED light beams so that the plantlets contained in the culture container 10 perform photosynthetic reactions.

[0057] The LED light source unit 300 has a hollow shape, is made of a transparent material so that light is transmitted therethrough, and includes a housing 301 having a partition wall 302 in a longitudinal direction so that an internal space is partitioned in a vertical direction.

[0058] The lower space partitioned by the partition wall 302 within the housing 301 includes a printed circuit board (PCB) 303 mounted on a lower surface outside the partition wall 302 and an LED element 304 surface-mounted on a lower surface outside the PCB 303 .

[0059] In the upper space within the housing 301 , a cooling water delivery line 530 of a cooling unit 500 to be described below is inserted into the housing 301 in a longitudinal direction.

[0060] The LED light source unit 300 includes a first light source unit 310 and a second light source unit 320 .

[0061] The first light source unit 310 is fixedly mounted on the bottom surface of the outer side of the upper plate portion 120 , and irradiates the culture container 10 placed on the upper surface of the first shelf portion 210 with LED beams.

[0062] The second light source unit 320 is disposed below the first shelf portion 210 , and irradiates the culture container 10 placed on the upper surface of the second shelf portion 220 with LED beams.

[0063] The second light source unit 320 is not fixedly installed in the first shelf portion 210 but is installed to be spaced apart from the first shelf portion 210 so as not to interfere with the sliding linear movement of the first shelf portion 210 coupled to the upper frame portion 131 by the rail.

[0064] In other words, the housing 301 is held on the cooling water delivery line 530 which passes through the housing 301 of the second light source unit 320 in the longitudinal direction and passes through the upper space of the housing 301 .

[0065] The coagulation measuring unit 400 is installed in the first shelf part 210 and the second shelf part 220 to measure the coagulation phenomenon generated on the inner surface of the culture container 10 .

[0066] The coagulation measuring unit 400 measures the coagulation phenomenon by irradiating the culture container 10 with infrared rays from the outside of the culture container 10 in a non-contact manner.

[0067] The coagulation measuring unit 400 may include a light emitting unit 410 , a light receiving unit 420 , a light quantity measuring module (also referred to as “light quantity measuring unit”) 430 , and a controller 440 .

[0068] The light emitting unit 410 is an optical element that emits infrared rays and is installed on a first surface in the mounting portion 201 formed on the upper surface of the shelf portion 200. The light emitting unit 410 irradiates the outer surface of the culture container 10 with infrared rays. That is, infrared rays are irradiated in the lateral direction of the culture container 10.

[0069] The light receiving unit 420 is a sensor for detecting infrared rays and is installed on a second surface facing the light emitting unit 410 within the mounting portion 201 formed on the upper surface of the shelf portion 200. The light receiving unit 420 detects infrared rays irradiated from the light emitting unit 410 and passing through the culture container 10.

[0070] The light amount measuring module 430 is electrically connected to the light emitting unit 410 and the light receiving unit 420 and measures the light amount of infrared rays detected by the light receiving unit 420 .

[0071] When the amount of infrared light irradiated from the light emitting unit 410 and measured by the light amount measuring module 430 is the same as the amount of infrared light received by the light receiving unit 420, the judgment module of the controller 440 determines that no condensation occurs in the culture container 10, and the controller 440 turns off the cooling unit 500.

[0072] When a condensation phenomenon in which water droplets are formed occurs on the inner surface of the culture container 10, a light amount that is less than the total light amount of infrared rays irradiated from the light emitting unit 410 due to scattering by or absorption into the water droplets is received by the light receiving unit 420, and the cooling unit 500 electrically connected to the condensation measuring unit 400 is operated under the control of the controller 440.

[0073] In other words, the circulation pump 510 of the cooling unit 500 is operated by the controller 440 , thereby circulating cooling water in the cooling water delivery line 530 .

[0074] The cooling unit 500 is installed in the culture table 100 and is electrically connected to the condensation measuring unit 400. When the condensation phenomenon of the culture container 10 is measured by the condensation measuring unit 400, cooling water passing through the inside of the LED light source unit 300 is circulated to control the temperature of the LED light source unit 300.

[0075] That is, the condensation measuring unit 400 measures the condensation information of the culture container 10 and transmits the measured condensation information to the controller 440, and the controller 440 controls the operation of the cooling unit 500 according to the received condensation information. Since the cooling water circulates by the operation of the cooling unit 500, the heat generated by the LED light source unit 300 can be cooled.

[0076] The cooling unit 500 may include a circulation pump 510 , a heat dissipation unit 520 , and a cooling water delivery line 530 .

[0077] The circulation pump 510 is mounted on the upper plate portion 120. An inlet and an outlet are formed on both sides of the circulation pump 510, cooling water is sucked through the inlet, and cooling water is discharged through the outlet.

[0078] The circulation pump 510 pumps the cooling water so that the cooling water discharged from the outlet passes through a cooling water delivery line 530 to be described below, is sucked to the inlet, and is thus circulated.

[0079] The heat radiating unit 520 is installed at the inlet side of the circulation pump 510. The circulation pump 510 and the heat radiating unit 520 are communicated with each other so that cooling water flows.

[0080] The heat dissipation unit 520 is used to reduce the temperature of the cooling water by dissipating the heat of the cooling water pumped into the circulation pump 510 .

[0081] The heat dissipation unit 520 may include a hollow body 521 forming a spiral flow path to maximally buffer cooling water pumped into the circulation pump 510 and a plurality of heat dissipation pins 522 formed on an outer surface of the body 521 to maximize cooling efficiency.

[0082] The cooling water delivery line 530 passes through the LED light source unit 300, and both ends of the cooling water delivery line 530 are connected to the outlet of the circulation pump 510 and the heat dissipation unit 520. Cooling water is delivered through the cooling water delivery line 530.

[0083] The cooling water delivery line 530 may be made of an aluminum material having excellent thermal conductivity.

[0084] The cooling water passes through the housing 301 of the LED light source unit 300 in the longitudinal direction and circulates through the cooling water delivery pipeline 530 inserted into the upper space in the housing 301, and the cooling water can be used to cool the heat generated by the PCB 303 of the LED light source unit 300 installed in the lower space in the housing 301.

[0085] The culture container fixing unit 600 fixes the culture container 10 to the shelf part 200 using an attractive force between the culture container 10 and the shelf part 200 .

[0086] The culture container fixing unit 600 may include an iron plate 610 , an electromagnet 620 , and a switch unit 630 .

[0087] The iron plate 610 is thin and is detachably attached to the bottom surface of the outside of the culture container 10 .

[0088] The electromagnet 620 has a flat plate shape and is installed on the bottom surface of the outer side of the shelf part 200 in such a manner as to be spaced apart from and face the iron plate 610 .

[0089] The switch unit 630 is an on / off switch and performs on-off control of current applied to the electromagnet 620. The switch unit 630 includes a non-conductor 631 and an electrical connection rod 632.

[0090] The non-conductor 631 is provided at the rear end outside the electromagnet 620. In other words, the non-conductor 631 may be made of a non-conductive material such as plastic, wood, and glass. The non-conductor 631 is mounted on the outer surface of the rear end of the electromagnet 620.

[0091] The electrical connection rod 632 is provided in the culture table 100. The electrical connection rod 632 is positioned at the front end of the culture table 100 and is installed in the vertical frame part 110.

[0092] The electrical connection rod 632 contacts the outer surface of the electromagnet 620 and transfers current to the electromagnet 620. Electric power is applied to the electrical connection rod 632 from the outside.

[0093] The electrical connection rod 632 is positioned on a side portion of the electromagnet 620 , and a free end of the electrical connection rod 632 contacts an outer surface of the electromagnet 620 .

[0094] That is, in a state where the shelf part 200 is positioned in the culture table 100 , the free end of the electrical connection rod 632 contacts the electromagnet 620 , current is transmitted to the electromagnet 620 through the electrical connection rod 632 , and the electromagnet 620 is magnetized to have polarity.

[0095] In this case, the culture container 10 is firmly fixed to the shelf part 200 by the attraction force between the electromagnet 620 and the iron plate 610 installed on the lower side portion of the culture container 10 placed on the upper surface of the shelf part 200 .

[0096] In this case, when the user moves the shelf portion 200 toward the front side of the culture platform 100 and exposes the shelf portion 200 to the front side of the culture platform 100, the current applied to the electromagnet 620 is cut off because the electrical connection rod 632 contacts the outer surface of the non-conductor 631 positioned at the rear end of the electromagnet 620.

[0097] In this way, when the current applied to the electromagnet 620 is cut off, the attraction between the iron plate 610 and the electromagnet 620 is released, so the user can freely move or replace the culture container 10 fixed to the shelf part 200.

[0098] In the culture device for culturing potato tissue according to the embodiment of the present invention, heat generated by the LED light source unit 300 is cooled by the condensation measuring unit 400 for measuring condensation generated on the inner surface of the culture container 10 by irradiating the culture container 10 with infrared rays in a non-contact manner, so that the temperature of the culture table 100 is maintained at a constant level, and thus it is possible to prevent condensation from being generated in the culture container 10 when culturing potato tissue.

[0099] In the culture device for culturing potato tissue according to the embodiment of the present invention, by means of the culture container fixing unit 600 that fixes the culture container 10 to the shelf portion 200 by utilizing the attraction force generated by the magnetic force between the culture container 10 and the shelf portion 200, even when an earthquake occurs or an external force is applied to the culture table 100, the culture container 10 can be firmly fixed to prevent the culture container 10 from being easily separated from the shelf portion 200.

[0100] Although the present invention has been described with reference to the embodiments shown in the accompanying drawings, this description is only illustrative, and those skilled in the art will appreciate that various modifications and other equivalent embodiments may be made. Therefore, the true technical scope of the present invention should be determined by the appended claims.

Claims

1. A culture device for culturing potato tissue, comprising: A culture platform, the culture platform comprising a plurality of vertical frame parts erected to be spaced apart from each other and a horizontal frame part connecting the vertical frame parts; a shelf portion that is slidably movable on the horizontal frame portion, on which a culture container containing plantlets cultured in a culture medium is placed, and the shelf portion includes a plurality of holes on a bottom surface; a light emitting diode light source unit which is mounted on the culture table and irradiates the culture container with a light beam; a coagulation measuring unit installed in the shelf portion and measuring a coagulation phenomenon generated in the culture container by irradiating the culture container with infrared rays; as well as a cooling unit installed in the culture table, electrically connected to the coagulation measuring unit, and circulating cooling water through the LED light source unit according to the coagulation information measured by the coagulation measuring unit, thereby controlling the temperature of the LED light source unit, in: The culture platform further includes an upper plate portion coupled to each of the vertical frame portions, The coagulation assay unit comprises: a light emitting unit which is mounted on the first surface inside the shelf portion and irradiates the outer surface of the culture container with infrared rays; a light receiving unit which is installed on the second surface inside the shelf portion and detects infrared rays irradiated from the light emitting unit and transmitted through the culture container; and a light quantity measuring module that measures the light quantity of infrared rays detected by the light receiving unit, The cooling unit comprises: a circulation pump, the circulation pump comprising an inlet and an outlet, the cooling water being sucked in through the inlet and the cooling water being discharged through the outlet, and the circulation pump pumping the cooling water so that the cooling water circulates from the outlet to the inlet; a heat dissipation unit installed at an inlet side of the circulation pump and dissipating heat of the cooling water sucked into the circulation pump; and a cooling water delivery pipeline, the cooling water delivery pipeline being arranged to pass through the LED light source unit and being connected to the outlet of the circulation pump and the heat dissipation unit to deliver the cooling water, The light emitting diode light source unit comprises: a housing having a hollow shape, being made of a transparent material so that light is transmitted through the housing, and having a partition wall so that an inner space is partitioned in a vertical direction; a printed circuit board mounted on a lower surface partitioned by the partition wall in the housing; and a light emitting diode element mounted on a lower surface of the printed circuit board, In the upper space of the housing separated by the partition wall, the cooling water delivery pipeline is inserted into the housing along the longitudinal direction. The culture device further comprises: a culture container fixing unit that fixes the culture container to the shelf using an attraction force between the culture container and the shelf, The culture container fixing unit comprises: an iron plate detachably attached to the culture container; an electromagnet disposed on the shelf portion; and a switch unit for controlling the on-off of the current applied to the electromagnet, The switch unit comprises: a non-conductor attached to the electromagnet; and an electrically connected rod to transmit electric current to the electromagnet, and When the shelf portion is arranged below the upper plate portion, current is applied to the electromagnet as the electromagnet contacts the electrical connection rod. When the shelf portion moves on the culture table so that the shelf portion is exposed outward from the upper plate portion, the electrical connection rod comes into contact with the non-conductor and thus cuts off the current applied to the electromagnet.

2. The culture device according to claim 1, wherein: The horizontal frame portion comprises: an upper frame portion spaced apart from the upper plate portion and disposed below the upper plate portion; and A lower frame portion is spaced apart from the upper frame portion and disposed below the upper frame portion.

3. The culture device according to claim 2, wherein: The shelf portion comprises: a first shelf portion slidably coupled to the upper frame portion; and A second shelf portion is slidably coupled to the lower frame portion.

4. The culture device according to claim 3, wherein: The light emitting diode light source unit comprises: a first light source unit mounted on a bottom surface of the upper plate portion; and A second light source unit is installed below the first shelf portion.

5. The culture device according to claim 1, wherein: The shelf portion is made of non-metallic material.

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