Poratable air purifyung apparatus using microalgae

Abstract

The present invention relates to a portable air purification device using microalgae that can be easily used in limited spaces such as homes, offices, or vehicle interiors by simplifying and miniaturizing the structure, characterized by comprising: a main body; a container connected to the main body and containing a culture medium capable of cultivating microalgae; and a purification means provided in the main body and the container, which forcibly introduces air from outside the container into the culture medium when the air quality value outside the container deviates from a preset range.

Description

Technology Field

[0001] The present invention relates to a portable air purification device using microalgae, and more specifically, to a portable air purification device using microalgae that simplifies and miniaturizes its structure so that it can be easily used in limited spaces such as homes, offices, or the interior of vehicles. Background Technology

[0003] Recently, fine dust concentrations have emerged as a serious social problem due to the increased use of fossil fuels resulting from industrialization and various environmental factors.

[0004] Because these fine dust particles are very small, they are not filtered out by the respiratory system and accumulate in the body, potentially causing various diseases.

[0005] To address these problems, air purification technology is being researched that utilizes the photosynthetic action of microalgae to remove harmful substances and carbon dioxide from the air and supply oxygen.

[0006] Examples of inventions created from the above perspective include the "Indoor Air Purification System Using Microalgae" (hereinafter referred to as prior art) of Registered Patent No. 10-2364640.

[0007] The prior art has a structure including a tank containing a microalgae culture medium, a circulation pump and filter for filtering out the grown microalgae, and an LED lamp for growing the microalgae.

[0008] However, the prior art has the following problems and limitations.

[0009] First, due to the complex structure including an aeration tank and separate circulation and filtration devices, the entire system is bulky and heavy; while suitable for fixed use in a specific location, there are clear limitations to its application for personal, vehicle, or mobile use.

[0010] Second, adopting a method of circulating and filtering the entire culture medium to manage microalgae proliferated in the medium has the disadvantage of a complex structure and being difficult for the user to maintain directly.

[0011] Third, when injecting external air into the culture medium, there is a lack of specific means to filter out harmful bacteria or impurities in the air beforehand, which can cause external contaminants to directly enter the culture medium, contaminate the culture environment, and inhibit the growth of microalgae.

[0012] Therefore, there is a need to develop a new type of portable air purification device that improves upon the problems of conventional technology by drastically simplifying and miniaturizing the structure to increase portability, while simultaneously maximizing user maintenance convenience. Prior art literature

[0014] Registered Patent No. 10-2364640 The problem to be solved

[0015] The present invention was developed to improve upon the aforementioned problems and aims to provide a portable air purification device using microalgae that can be easily used in various spaces such as homes, offices, and vehicles by eliminating complex circulation and filtration structures and simplifying, lightweighting, and miniaturizing the overall structure.

[0016] Furthermore, the present invention is intended to provide a portable air purification device using microalgae that allows a container holding a microalgae culture solution to be easily detached from the main body, thereby maximizing user convenience for maintenance, such as replacing the culture solution or cleaning the container.

[0017] Furthermore, the present invention aims to provide a portable air purification device using microalgae that can improve the stability and durability of the product by clearly separating the space where electrical devices, such as air pumps and LEDs, are installed from the space where the culture medium is contained through a layout board, thereby fundamentally blocking risks such as electrical leakage or malfunction that may occur due to the culture medium coming into direct contact with the electrical devices.

[0018] In addition, the present invention aims to provide a portable air purification device using microalgae that prevents contamination of the culture medium and increases purification efficiency by allowing external air to pass through a double filter including an activated carbon filter and a microfiber filter before being introduced into the culture medium, thereby filtering out harmful bacteria and viruses as well as deodorizing functions.

[0019] In addition, the present invention is intended to provide a portable air purification device using microalgae that can selectively discharge only purified oxygen without leakage of culture medium by providing a discharge slot on one side of the container finished with a hydrophobic porous membrane so that purified air generated by the photosynthetic action of microalgae can be efficiently discharged to the outside.

[0020] In addition, the purpose is to provide a portable air purification device using microalgae that enables the efficient irradiation of light of wavelengths optimized for the proliferation of microalgae by directly placing LED bars inside the culture medium to induce stable photosynthesis of microalgae even in environments where external natural light is insufficient. means of solving the problem

[0022] To achieve the above objectives, the present invention may provide a portable air purification device using microalgae, characterized by comprising: a main body; a container connected to the main body and containing a culture medium capable of cultivating microalgae; and a purification means provided in the main body and the container, which forcibly introduces air from outside the container into the culture medium when the air quality value outside the container deviates from a preset range.

[0023] Here, the container is characterized by being detachably coupled to the main body.

[0024] At this time, the main body is characterized by comprising a cover cap that is detachably coupled to the container with an open top surface and has an open bottom surface on which a part of the purification means is installed, and a placement board disposed between the cover cap and the container on which a part of the purification means is installed and which blocks the culture solution from coming into direct contact with the purification means.

[0025] In addition, the fine dust and carbon dioxide contained in the air outside the container that is introduced into the culture medium by the purification means serve as a growth source for the microalgae.

[0026] In addition, it is characterized by further including a gas sensor provided on one side of the main body and electrically connected to the purification means, which monitors and measures the concentration of volatile organic compounds, carbon dioxide concentration, and oxygen concentration in real time in the air outside the container, and a power supply means electrically connected to the gas sensor and the purification means, which supplies power necessary for the operation of the gas sensor and the purification means.

[0027] In addition, the power supply means is characterized by being selected from at least one or a combination of at least one of a battery embedded in the main body that is charged and discharged with power supplied from a household AC power source and operates the gas sensor and the purification means, a household AC power source that directly operates the gas sensor and the purification means, or a vehicle DC power source that directly operates the gas sensor and the purification means.

[0028] In addition, the purification means is characterized by including a filter installed in a ventilation slot formed through one side of the cover cap, and an air pump installed on the upper surface of the arrangement board to forcibly introduce air from outside the container into the culture medium inside the container.

[0029] In addition, the filter is characterized by comprising a hollow cartridge body made of a material through which air from outside the container can pass, a pellet-shaped activated carbon housed in the cartridge body to perform a deodorizing function, and a microfiber filter disposed on one side of the cartridge body to capture harmful bacteria and viruses contained in the air from outside the container that has passed through the activated carbon.

[0030] In addition, the purification means further comprises an air supply pipe connected to the discharge port of the air pump and extending into the interior of the container, an air-dispersing stone installed at the lower end of the air supply pipe to disperse air into the culture medium inside the container, at least one discharge slot penetrating the upper outer surface of the container to discharge air purified by microalgae inside the culture medium, and a hydrophobic porous membrane mounted on the inner surface of the container to block the discharge slot, block the discharge of the culture medium, and discharge only the purified air.

[0031] In addition, the purification means further comprises a main PCB disposed on one side of the upper surface of the placement board, an FPCB connected to the main PCB and extending into the container, and an LED bar connected to the FPCB that irradiates blue light (430~450 nm) and red light (640~680 nm) as main wavelengths into the culture medium. Effects of the invention

[0033] According to the present invention with the above-described configuration, the following effects can be achieved.

[0034] First of all, the present invention has the advantage of providing excellent portability and space utilization, as its overall structure is compact and lightweight, allowing it to be mounted and used not only on a desk at home or in an office but also in places such as a vehicle's cup holder.

[0035] In addition, the present invention has the advantage of being very convenient for maintenance because the container holding the culture medium is designed to be detachable, allowing the user to easily replace or clean it.

[0036] In addition, the present invention adopts a structure that separates the electrical device and the culture medium based on the batch board, thereby preventing failure of electrical components due to moisture and significantly improving the safety and reliability of the product.

[0037] In addition, the present invention has the advantage that the double filter pre-filters impurities and harmful bacteria from the outside air, so the culture medium remains clean for a long time and microalgae grow stably, allowing the air purification performance to be consistently sustained.

[0038] In addition, the present invention has the advantage of effectively creating a pleasant indoor air quality by allowing only purified oxygen to be smoothly discharged to the outside through a hydrophobic porous membrane without worrying about leakage of the culture medium.

[0039] In addition, the present invention has the distinctive advantage of maximizing the photosynthetic efficiency of microalgae regardless of ambient light intensity and ensuring stable air purification performance by embedding an LED bar that directly irradiates light of an optimal wavelength inside the culture medium. Brief explanation of the drawing

[0041] FIG. 1 is a conceptual diagram illustrating the overall exterior and internal structure of a mobile air purification device using microalgae according to an embodiment of the present invention. FIG. 2 is an exploded perspective conceptual diagram illustrating the overall coupling relationship of a mobile air purification device using microalgae according to one embodiment of the present invention. FIG. 3 is a conceptual perspective view illustrating the periphery of the placement board, which is a main part of the main body of a mobile air purification device using microalgae according to an embodiment of the present invention. FIGS. 4 and 5 are exploded perspective conceptual diagrams illustrating the overall coupling relationship of a mobile air purification device using microalgae according to an embodiment of the present invention. FIG. 6 is a photograph illustrating the state of a culture medium proliferated using a mobile air purification device utilizing microalgae according to an embodiment of the present invention. Specific details for implementing the invention

[0042] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described in detail below together with the accompanying drawings.

[0043] However, the present invention is not limited to the embodiments disclosed below but will be implemented in various different forms.

[0044] The embodiments described in this specification are provided to ensure that the disclosure of the invention is complete and to fully inform those skilled in the art of the scope of the invention.

[0045] And the present invention is defined only by the scope of the claims.

[0046] Accordingly, in some embodiments, well-known components, well-known operations, and well-known techniques are not specifically described to avoid the invention being interpreted ambiguously.

[0047] Additionally, throughout the specification, the same reference numerals refer to the same components, and the terms used (mentioned) in this specification are for describing embodiments and are not intended to limit the invention.

[0048] In this specification, the singular form includes the plural form unless specifically stated otherwise in the text, and components and operations referred to as 'comprising (or comprising)' do not exclude the presence or addition of one or more other components and operations.

[0049] Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning that is commonly understood by those skilled in the art to which the present invention belongs.

[0050] Also, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless otherwise defined.

[0052] Hereinafter, preferred embodiments of the present invention will be described with reference to the attached drawings.

[0054] First, FIG. 1 is a conceptual diagram illustrating the overall exterior and internal structure of a mobile air purification device using microalgae according to one embodiment of the present invention, FIG. 1(b) is a conceptual cross-sectional view along the ib-ib line of FIG. 1(a), and FIG. 1(d) is a conceptual cross-sectional view along the id-id line of FIG. 1(c).

[0055] And, FIG. 2 is an exploded perspective conceptual diagram illustrating the overall coupling relationship of a mobile air purification device using microalgae according to one embodiment of the present invention.

[0056] And, FIG. 3 is a perspective conceptual diagram showing the periphery of a placement board (120) in the main body (100), which is the main part of a mobile air purification device using microalgae according to one embodiment of the present invention.

[0057] In addition, FIGS. 4 and 5 are exploded perspective conceptual diagrams illustrating the overall coupling relationship of a mobile air purification device using microalgae according to an embodiment of the present invention at various viewpoints.

[0058] In addition, Fig. 6 is a photograph showing the state of a culture medium proliferated using a mobile air purification device using microalgae according to one embodiment of the present invention.

[0060] As shown in FIG. 1, the present invention may be applied in an embodiment comprising a main body (100), a container (200) connected to the main body (100) and containing a culture medium (400) capable of culturing microalgae, and a purification means (300) provided in the main body (100) and the container (200).

[0061] The purification means (300) performs the function of forcibly introducing air from outside the container (200) into the culture medium (400) when the air quality value outside the container (200) deviates from a preset range.

[0063] The present invention is applicable to the above-described embodiments, and it goes without saying that it is also applicable to various embodiments as follows.

[0065] First, the container (200) can be detachably coupled to the main body (100), for example, the container (200) can be coupled to the cover cap (110) of the main body (100) in various ways, such as a twist cap method or a snap-fit ​​method.

[0067] Meanwhile, the main body (100) may include a cover cap (110) that is detachably coupled to a container (200) with an open top surface and has an open bottom surface to which a part of a purification means (300) is installed, and a placement board (120) that is disposed between the cover cap (110) and the container (200) and has a part of a purification means (300) installed thereon to block the culture solution (400) from coming into direct contact with the purification means (300).

[0068] Here, fine dust and carbon dioxide contained in the air outside the container (200) that is introduced into the culture medium (400) by the purification means (300) become a source of proliferation for microalgae.

[0070] Meanwhile, the mobile air purification device using microalgae according to the present invention may further include a gas sensor (not shown below) that is provided on one side of the main body (100) and electrically connected to a purification means (300), and monitors and measures the concentration of volatile organic compounds, carbon dioxide concentration, and oxygen concentration in real time in the air outside the container (200).

[0071] In addition, the mobile air purification device using microalgae according to the present invention may further include a power supply means (not shown below) that is electrically connected to the gas sensor and the purification means (300) and supplies power necessary for the operation of the gas sensor and the purification means (300).

[0073] Meanwhile, the power supply means may be selected from at least one or a combination of at least one of a battery built into the main body (100) that is charged and discharged with power supplied from a household AC power source and operates the gas sensor and purification means (300), a household AC power source that directly operates the gas sensor and purification means (300), or a vehicle DC power source that directly operates the gas sensor and purification means (300).

[0075] Meanwhile, the purification means (300) may include a filter (310) installed in a ventilation slot (111) formed through one side of the cover cap (110), and an air pump (320) installed on the upper surface of the placement board (120) to forcibly introduce air from outside the container (200) into the culture medium (400) inside the container (200).

[0077] Here, the filter (310) may include a hollow cartridge body (310) made of a material through which air from outside the container (200) can pass, a pellet-shaped activated carbon (hereinafter not shown) that is housed in the cartridge body (310) and performs a deodorizing function, and a microfiber filter (hereinafter not shown) disposed on one side of the cartridge body (310) to capture harmful bacteria and viruses contained in the air from outside the container (200) that has passed through the activated carbon.

[0079] For the installation of the cartridge body (310), a fixing slot (112) is formed through one side of the cover cap (110) and can be positioned on the outer edge of the ventilation slot (111).

[0080] Additionally, the mobile air purification device using microalgae according to the present invention may further include a fixed hook (331) that is detachable from a fixed slot (112), a grill body (330) connected to the fixed hook (331) to seal the ventilation slot (111), a grill slot (332) that penetrates the grill body (330) in a plurality of rows and columns and allows air from outside the container (200) to enter, and a cartridge bracket (333) that is formed on the inner side of the cover cap (110) and fixes and supports a cartridge body (310) that is placed in the ventilation slot (111).

[0082] Meanwhile, the purification means (300) may further include an air supply pipe (322) connected to the discharge port (321, see FIG. 3 below) of the air pump (320) and extending into the interior of the container (200), and an air-dispersing stone (323) installed at the lower end of the air supply pipe (322) to disperse air into the culture medium (400) inside the container (200).

[0083] Additionally, the purification means (300) may further include a discharge slot (340) that penetrates at least one outer surface of the container (200) to discharge air purified by microalgae inside the culture medium (400), and a hydrophobic porous membrane (341) that is mounted on the inner surface of the container (200) and blocks the discharge slot (340), thereby blocking the discharge of the culture medium (400) and discharging only the purified air.

[0085] Meanwhile, the mobile air purification device using microalgae according to the present invention may further include a support tube (121) with upper and lower ends penetrating, which is installed on the upper surface of a placement board (120) and fixes and supports the upper side of an air supply pipe (322), and a reinforcing structure (122) spaced apart from the support tube (121) to prevent twisting deformation of the placement board (120).

[0086] The reinforcing structure (122) may largely include an inner wall (1221), an outer wall (1222), and a connecting wall (1223).

[0087] The inner wall (1221) has an inner surface facing the outer surface of the support tube (121) and is formed to protrude in an arc shape on the upper surface of the arrangement board (120) at a certain distance from the support tube (121).

[0088] The outer wall (1222) has an inner surface facing the outer surface of the inner wall (1221) and is formed to protrude in an arc shape on the upper surface of the arrangement board (120) at a certain distance from the inner wall (1221).

[0089] The connecting wall (1223) is formed to protrude in a flat shape on the upper surface of the arrangement board (120), connecting each end of the inner wall (1221) and the outer wall (1222).

[0091] Meanwhile, the purification means (300) may further include a main PCB (350) disposed on one side of the upper surface of the placement board (120), an FPCB (361) connected to the main PCB (350) and extending into the container (200), and an LED bar (360) connected to the FPCB (361) and irradiating blue light (430~450 nm) and red light (640~680 nm) as main wavelengths into the culture medium (400).

[0093] Meanwhile, the mobile air purification device using microalgae according to the present invention may further include an installation hole (123) penetrating the placement board (120) with a diameter smaller than or equal to the inner diameter of the support tube (121), a sealing packing (1231) made of an elastic material installed on the inner edge of the installation hole (123), an upper outer surface that contacts the sealing packing (1231), an air supply pipe (322), an FPCB (361), and a protective tube (370) made of a transparent or translucent material that accommodates an LED bar (360).

[0094] Here, it can be seen through FIG. 1(b) and FIG. 1(d) that a sandstone (323) is fixedly mounted on the lower part of the protective tube (370).

[0096] Meanwhile, the mobile air purification device using microalgae according to the present invention may further include a dispersion grill (380) which is coupled to the outer surface of the lower part of the protective tube (370), accommodates the lower part of the protective tube (370) and the aeration stone (323), and further crushes the particles of air bubbles dispersed into the culture medium (400) through the aeration stone (323) so that they are discharged into the culture medium (400).

[0097] Here, the scatter grill (380) may include a cylindrical casing (381) having a through hole (382) on its upper surface that faces the outer surface of the lower portion of the protective tube (370) and a space formed inside that can accommodate the lower portion of the protective tube (370) and the scatter stone (323), and scatter slots (383) arranged radially on the outer surface of the casing (381) and communicating with the space.

[0099] Meanwhile, the mobile air purification device using microalgae according to the present invention may further include a main PCB (350) disposed on one side of the upper surface of a placement board (120), and a power state PCB (391) connected to the main PCB (350) and installed orthogonally to the upper surface of the placement board (120).

[0100] Additionally, the mobile air purification device using microalgae according to the present invention may further include an on / off button (392) installed on a power state PCB (391) and exposed through a button slot penetrating one side of a cover cap (110), and an air quality status display means (390) positioned on the lower side of the on / off button (392) to visually output an air quality value outside the container (200) measured in real time by a gas sensor.

[0102] Here, the air quality status display means (390) may include at least one RGB LED (393) installed on the power status PCB (391) and positioned on the lower side of the on / off button (392) to display the air quality value outside the container (200) measured in real time by the gas sensor in color, and an LED slot (394) that penetrates one side of the cover cap (110) as many times as the number of RGB LEDs (393).

[0103] At this time, the air quality status display means (390) may include a display panel (not shown below) installed on the power status PCB (391) and positioned on the lower side of the on / off button (392) to output air quality values ​​outside the container (200) measured in real time by the gas sensor, and a panel slot (not shown below) penetrating one side of the cover cap (110) to correspond to the shape of the display panel.

[0105] Meanwhile, it can be seen that the state of the culture medium proliferated using the mobile air purification device using microalgae according to the present invention is as shown in FIG. 6.

[0106] That is, Figure 6(a) illustrates the state of culture in a seawater (MA) medium with a salinity of 1%, and it can be seen that phytoplankton (microalgae) appearing as green dots and bacteria appearing as gray fine dots are coexisting in a colony.

[0107] In addition, Figure 6(b) shows the state of culture in a freshwater medium (R2A) with 0% salinity, and it can be seen that microalgae and bacteria maintain a stable symbiotic relationship and inhabit the environment even in a freshwater environment.

[0108] This suggests that when the air purification device according to the present invention is operated, airborne bacteria are also captured during the process in which external air flows into the culture medium (400) through the filter (310).

[0109] And, the captured bacteria do not cause problems such as killing the microalgae, but rather form a stable symbiotic relationship with the microalgae in the culture medium (400).

[0110] Therefore, in addition to the primary effect of removing fine dust and carbon dioxide, the present invention can also be expected to have the additional effect of reducing the concentration of bacteria suspended in the indoor air.

[0112] As described above, it can be seen that the basic technical concept of the present invention is to provide a portable air purification device using microalgae that can be easily used in various spaces such as homes, offices, and vehicles by eliminating complex circulation and filtration structures and simplifying, lightweighting, and miniaturizing the overall structure.

[0113] And, it goes without saying that many other variations and applications are also possible for those skilled in the art within the scope of the basic technical concept of the present invention. Explanation of the symbols

[0115] 100...main body 110...Cover Cap 111...Ventilation slot 112...fixed slot 120...batch board 121...Jijitong 122...Reinforcement structure 1221...inner wall 1222...Exterior wall 1223...connecting wall 123...Installation hole 1231... airtight packing 200...courage 300...means of purification 310...Filter (Cartridge body) 320...air pump 321...Discharge port 322...air supply pipe 323...Sangiseok 330...Grill body 331...Fixing hook 332...grill slot 333...Cartridge bracket 340...Discharge slot 341...hydrophobic porous membrane 350...Main PCB 360...LED bar 361...FPCB 370...Protector 380... Sanpo Grill 381...Casing 382...Tonggong 383...Scatter slot 390...Method of displaying air quality status 391...Power status PCB 392...On / Off button 393...RGB LED 394...LED slot 400...culture solution

Claims

Claim 1 Main body; a container connected to the main body and containing a culture medium capable of cultivating microalgae; The device comprises a purification means provided in the main body and the container, which forcibly introduces air from outside the container into the culture medium when the air quality value outside the container deviates from a preset range, wherein the main body is detachably coupled to the container with an open top surface, and includes a cover cap with an open bottom surface on which a part of the purification means is installed, and a placement board disposed between the cover cap and the container on which a part of the purification means is installed and which blocks the culture medium from contacting the purification means directly, wherein the purification means comprises a filter installed in a ventilation slot formed through one side of the cover cap, an air pump installed on the upper surface of the placement board to forcibly introduce air from outside the container into the culture medium inside the container, an air supply pipe connected to the discharge port of the air pump and extending to the inside of the container, an air diffuser installed at the lower end of the air supply pipe to disperse air into the culture medium inside the container, and a discharge slot that penetrates at least one or more of the outer surface of the container to discharge air purified by microalgae inside the culture medium, and the A portable air purification device using microalgae, characterized by further including a hydrophobic porous membrane mounted on the inner surface of a container, which blocks the discharge slot, blocks the discharge of the culture medium, and discharges only the purified air. Claim 2 A mobile air purification device using microalgae according to claim 1, characterized in that the container is detachably coupled to the main body. Claim 3 delete Claim 4 A mobile air purification device using microalgae according to claim 1, characterized in that fine dust and carbon dioxide contained in the air outside the container introduced into the culture medium by the purification means become a growth source for the microalgae. Claim 5 A mobile air purification device using microalgae according to claim 1, further comprising: a gas sensor provided on one side of the main body and electrically connected to the purification means, which monitors and measures the concentration of volatile organic compounds, carbon dioxide concentration, and oxygen concentration in real time in the air outside the container; and a power supply means electrically connected to the gas sensor and the purification means, which supplies power necessary for the operation of the gas sensor and the purification means. Claim 6 A portable air purification device using microalgae according to claim 5, wherein the power supply means is selected from at least one or a combination of at least one of a battery built into the main body and charged / discharged with power supplied from a household AC power source and operating the gas sensor and the purification means, a household AC power source that directly operates the gas sensor and the purification means, or a vehicle DC power source that directly operates the gas sensor and the purification means. Claim 7 delete Claim 8 A portable air purification device using microalgae according to claim 1, wherein the filter comprises a hollow cartridge body made of a material through which air from outside the container can pass, a pellet-shaped activated carbon housed in the cartridge body to perform a deodorizing function, and a microfiber filter disposed on one side of the cartridge body to capture harmful bacteria and viruses contained in the air from outside the container that has passed through the activated carbon. Claim 9 delete Claim 10 A portable air purification device using microalgae according to claim 1, wherein the purification means further comprises a main PCB disposed on one side of the upper surface of the placement board, an FPCB connected to the main PCB and extending into the interior of the container, and an LED bar connected to the FPCB that irradiates blue light (430~450 nm) and red light (640~680 nm) as main wavelengths into the culture medium. Claim 11 A portable air purification device using microalgae according to claim 8, further comprising: a fixed slot formed through one side of the cover cap and disposed on the outer edge of the ventilation slot; a fixed hook detachably attached to the fixed slot; a grill body connected to the fixed hook to seal the ventilation slot; and a grill slot formed through the grill body in a plurality of rows and columns and allowing air from outside the container to enter. Claim 12 A portable air purification device using microalgae according to claim 11, further comprising a cartridge bracket formed on the inner side of the cover cap and fixedly supporting the cartridge body disposed in the ventilation slot. Claim 13 A mobile air purification device using microalgae according to claim 1, further comprising a support tube with upper and lower ends penetrating, which is installed on the upper surface of the placement board and fixably supports the upper side of the air supply pipe, and a reinforcing structure installed on the upper surface of the placement board and spaced apart from the support tube, which prevents twisting deformation of the placement board. Claim 14 A mobile air purification device using microalgae according to claim 13, wherein the reinforcing structure comprises: an inner wall having an inner surface facing the outer surface of the support tube and protruding in an arc shape on the upper surface of the placement board spaced a certain distance from the support tube; an outer wall having an inner surface facing the outer surface of the inner wall and protruding in an arc shape on the upper surface of the placement board spaced a certain distance from the inner wall; and a connecting wall mutually connecting both ends of the inner wall and the outer wall and protruding in a flat plate shape on the upper surface of the placement board. Claim 15 A portable air purification device using microalgae according to claim 1, further comprising: a gas sensor provided on one side of the cover cap or the placement board and electrically connected to the purification means, which monitors and measures the concentration of volatile organic compounds, carbon dioxide concentration, and oxygen concentration in real time in the air outside the container; a main PCB disposed on one side of the upper surface of the placement board; a power status PCB connected to the main PCB and installed orthogonally to the upper surface of the placement board; an on / off button installed on the power status PCB and exposed through a button slot penetrating one side of the cover cap; and an air quality status display means disposed on the lower side of the on / off button and outputting the air quality value outside the container measured in real time by the gas sensor in a visually recognizable manner.

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