Air purifier

Abstract

The air purifier according to one embodiment of the present disclosure comprises: a case having suction ports in the circumferential surface thereof; air purification modules comprising blower fans disposed inside the case and filters for removing airborne particles introduced through the suction ports; and a booster module disposed on top of the air purification modules. The booster module can generate various airflows by comprising: a head cover; a ring-shaped inner grille with an open center, disposed inside the head cover to form discharge ports; a display panel disposed in front of the inner grille; a front driving unit passing through the central opening of the inner grille to be connected to the display panel; and a first motor for moving the display panel in a first direction.

Description

air purifier

[0001] The present disclosure relates to an air purifier, and more particularly, to an air purifier capable of discharging clean air in various directions.

[0002] An air purifier is a device that filters and expels the air within a space, thereby reducing dust and bacteria. An air purifier filters out foreign substances through the airflow within the space and expels the air free of these contaminants.

[0003] The air purifier can form an outlet at the top and cause the filtered air discharged upward to flow in all directions to quickly increase the cleanliness of the indoor space.

[0004] Additionally, when forming an outlet on the upper side, a separate fan for wind direction control can be placed on the upper side to send the filtered air to a long distance.

[0005] Additionally, research is underway on an air purifier configured with multiple stages by stacking the blower devices vertically.

[0006] Prior art (Korean Patent Publication No. KR10-2022-0007365) relates to an air purifier circulator, and discloses an air purifier that transmits a clean air stream to a long distance by placing a circulator on blower devices arranged in a vertical direction.

[0007] The air purifiers in the previous literature had a limitation in that only a portion of the clean air discharged from the upper blower was moved to a long distance by the circulator.

[0008] In addition, the air purifiers in the prior literature have the problem of requiring an additional fan to send the purified air over a long distance.

[0009] The problem that the present disclosure seeks to solve is to provide an air purifier that can circulate discharged clean air over a longer distance.

[0010] The problem that the present disclosure seeks to solve is to provide an air purifier that can increase the amount of clean air sent over a long distance.

[0011] The problem that the present disclosure seeks to solve is to provide an air purifier capable of implementing various airflows.

[0012] The problem that the present disclosure seeks to solve is to provide an air purifier that can improve air purification performance by preventing discharged clean air from being re-inflowed.

[0013] The problem that the present disclosure seeks to solve is to provide a miniaturized air purifier that prevents backflow without adding a structure such as a partition plate.

[0014] The problem that the present disclosure seeks to solve is to provide an air purifier capable of forming an airflow that effectively removes allergen substances that cause allergies.

[0015] The problem that the present disclosure seeks to solve is to provide an air purifier capable of improving the intake capacity of air sucked into the air purifier.

[0016] The tasks of the present disclosure are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the description below.

[0017] An air purifier according to an embodiment of the present disclosure can send more clean air to a long distance by sending all of the clean air discharged upward to a booster module.

[0018] An air purifier according to an embodiment of the present disclosure can form various airflows by moving a display panel without adding a separate fan.

[0019] An air purifier according to an embodiment of the present disclosure can form various airflows without adding a separate fan by rotating a booster module.

[0020] An air purifier according to one embodiment of the present disclosure includes a booster module disposed on the upper side of an air purification module, a head cover, an inner grill in the shape of a ring having an open center and forming an outlet on the inner side of the head cover, and a display panel disposed in front of the inner grill.

[0021] The booster module includes a motor that rotates the head cover.

[0022] The booster module includes a motor that moves the display panel.

[0023] An internal flow guide is formed on the inside of the head cover, and the internal flow guide connects the front edge of the head cover and the inner grill, and air discharged through the inner grill can pass through a slit formed between the internal flow guide and the display panel.

[0024] An air purifier according to one embodiment of the present disclosure comprises: a case having an intake port formed on a peripheral surface; an air purification module including a blower fan disposed inside the case; and a filter for removing foreign substances in air flowing into the intake port; and a booster module disposed above the air purification module, wherein the booster module comprises: a head cover; an inner grill having a ring shape and having an opening in the center, the inner grill having an outlet formed inside the head cover; a display panel disposed in front of the inner grill; a front driving unit penetrating the central opening of the inner grill and connected to the display panel; and a first motor for moving the display panel in a first direction, thereby forming various airflows.

[0025] The booster module may further include a first gear that is connected to the first motor and rotates, and a second gear that is located on the inner side of the front driving unit and interlocks with the first gear.

[0026] The booster module may further include a first booster motor mounting portion that supports the first motor, and a booster neck that accommodates the first booster motor mounting portion therein and supports the inner grill from the lower side.

[0027] The top of the above booster neck can be formed to be inclined.

[0028] The above display panel can be arranged parallel to the top of the booster neck.

[0029] The above head cover may have a hemispherical shape including a first opening in which the display panel is placed and a second opening in which the booster neck is placed.

[0030] The above first direction may be a direction perpendicular to a plurality of grills connecting the inner wall and the outer wall of the inner grill.

[0031] The booster module may further include a second motor that rotates the head cover in a second direction, a third gear that is connected to the second motor and rotates, and a fourth gear that is arranged on the inner surface of the head cover and is linked to the third gear.

[0032] The second direction may be different from the first direction.

[0033] An internal euro guide is formed on the inside of the head cover, and the internal euro guide can connect the front edge of the head cover and the inner grill.

[0034] Air discharged through the inner grill can pass through a slit formed between the inner euro guide and the display panel.

[0035] The above air purification module may include a first air purification module and a second air purification module disposed above the first air purification module.

[0036] The air purified in the second air purification module can be discharged through the inner grill.

[0037] A first discharge port is formed at the bottom of the first air purification module, and air purified in the first air purification module can be discharged through the discharge port at the bottom of the first air purification module.

[0038] The first air purification module may further include a bottom plate that is arranged on the lower side and in contact with the ground, and a flow guide that guides air discharged downward through the first discharge port laterally may be arranged on the upper surface of the bottom plate.

[0039] The above euro guide may include a curved portion, a flat portion extending laterally from the curved portion, and a boss protruding upward from an end of the flat portion.

[0040] In the above first discharge port, a lower discharge grill including a plurality of grills bent in an outward direction can be arranged.

[0041] According to at least one of the embodiments of the present disclosure, a booster module including a head cover, an inner grill having a ring shape and an opening in the center, an inner grill having a discharge port formed on the inside of the head cover, a display panel disposed in front of the inner grill, a front driving unit connected to the display panel by penetrating the central opening of the inner grill, and a first motor for moving the display panel in a first direction is disposed above an air purification module, thereby forming various airflows without adding a fan.

[0042] According to at least one of the embodiments of the present disclosure, the booster module further includes a first gear that is connected to the first motor and rotates, and a second gear that is located on the inner side of the front driving part and interlocks with the first gear, so that the gear structure does not shield the flow path, thereby improving air purification performance.

[0043] According to at least one of the embodiments of the present disclosure, the upper end of the booster neck supporting the inner grill is formed to be inclined, and the display panel is arranged parallel to the upper end of the booster neck, thereby improving the visibility of the displayed information and allowing clean air to be sent far away.

[0044] According to at least one of the embodiments of the present disclosure, the booster module may further include a second motor for rotating the head cover in a second direction, a third gear connected to the second motor for rotating, and a fourth gear disposed on the inner surface of the head cover and linked to the third gear, thereby forming a more diverse airflow.

[0045] According to at least one of the embodiments of the present disclosure, an internal flow guide is formed on the inside of the head cover, and the internal flow guide connects the front edge of the head cover and the inner grill, thereby reducing internal flow resistance.

[0046] According to at least one of the embodiments of the present disclosure, the air purification module can improve air purification performance by including a first air purification module and a second air purification module disposed above the first air purification module.

[0047] According to at least one of the embodiments of the present disclosure, the air purified in the second air purification module is discharged through the inner grill, thereby sending all of the air purified in the second air purification module to the booster module and sending more purified air to a long distance.

[0048] According to at least one of the embodiments of the present disclosure, a first discharge port is formed at the bottom of the first air purification module, and air purified in the first air purification module is discharged through the discharge port at the bottom of the first air purification module, thereby forming a bottom discharge airflow effective for removing allergen particles.

[0049] According to at least one of the embodiments of the present disclosure, a flow guide is arranged on the upper surface of a bottom plate disposed on the lower side of an air purification module to laterally guide air discharged downward through a first discharge port, thereby allowing allergen substances that cause allergies to float and be captured, and the allergen substances can be effectively removed.

[0050] According to at least one of the embodiments of the present disclosure, the euro guide can reduce flow resistance by including a boss protruding upward from an end.

[0051] According to at least one of the embodiments of the present disclosure, the first discharge port may be provided with a lower discharge grille including a plurality of grilles bent in an outward direction to form a lower discharge airflow for floating allergen particles.

[0052] FIG. 1 is a drawing illustrating the appearance of an air purifier according to one embodiment of the present disclosure.

[0053] FIG. 2a is a cross-sectional view of an air purifier according to an embodiment of the present disclosure, and FIG. 2b is an enlarged view of the upper part of the air purifier of FIG. 2a.

[0054] FIG. 3 and FIG. 4 are drawings for reference in the description of the operation of the booster module of the air purifier according to one embodiment of the present disclosure.

[0055] FIGS. 5 and 6 are exploded views of a booster module of an air purifier according to one embodiment of the present disclosure.

[0056] FIGS. 7 to 10 are cross-sectional views of the operation mode of a booster module according to an embodiment of the present disclosure.

[0057] FIG. 11 is an assembly diagram of a first air purification module according to an embodiment of the present disclosure.

[0058] FIG. 12 and FIG. 13 are exploded views of a first air purification module according to one embodiment of the present disclosure.

[0059] Figure 14 is an enlarged view of the lower discharge airflow guide structure.

[0060] FIG. 15 is an assembly diagram of a control module according to one embodiment of the present disclosure.

[0061] FIGS. 16 and 17 are exploded views of a control module according to one embodiment of the present disclosure.

[0062] FIG. 18 and FIG. 19 are exploded views of a second air purification module according to one embodiment of the present disclosure.

[0063] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the attached drawings. However, the present disclosure is not limited to these embodiments and can be modified in various forms.

[0064] In the drawings, parts that are not related to the description are omitted in order to clearly and concisely explain the present disclosure, and the same drawing reference numerals are used for the same or extremely similar parts throughout the specification.

[0065] Meanwhile, the suffixes "module" and "part" used in the following description are given solely for the convenience of writing this specification, and do not impart any particularly significant meaning or role to them. Therefore, the terms "module" and "part" may be used interchangeably.

[0066] Additionally, while terms such as "first" and "second" may be used in this specification to describe various elements, these elements are not limited by these terms. These terms are used only to distinguish one element from another.

[0067] FIG. 1 is a drawing showing the appearance of an air purifier according to an embodiment of the present disclosure, FIG. 2a is a cross-sectional view of an air purifier according to an embodiment of the present disclosure, and FIG. 2b is an enlarged drawing showing the upper part of the air purifier of FIG. 2a.

[0068] FIGS. 3 and 4 are drawings for reference in the description of the operation of the booster module of the air purifier according to one embodiment of the present disclosure, and FIGS. 5 and 6 are exploded views of the booster module of the air purifier according to one embodiment of the present disclosure.

[0069] First, referring to FIGS. 1, 2a, and 2b, the case (10) has suction holes (10a) formed on the circumferential surface so that air can be sucked in from various directions. Air can be sucked in from 360 degrees with respect to the vertical center line passing through the inner center of the case (10). A plurality of suction holes (10a) are formed spaced apart from each other in the circumferential direction. The plurality of suction holes (10a) are evenly formed in the circumferential direction along the circumferential surface of the case (10) so that air can be sucked in from any direction with respect to the case (10).

[0070] Meanwhile, in this specification, the up-down direction or vertical direction is defined as the axial direction. The axial direction may correspond to the central axis direction of the blower fan (140, 240) described later, i.e., the motor axis direction of the fan. In addition, the radial direction or horizontal direction may be understood as a direction perpendicular to the axial direction. In addition, the circumferential direction may be understood as the direction of an imaginary circle formed when rotating with the axial direction as the center and the radial distance as the rotation radius.

[0071] An air purifier (1) includes an air purification module (100, 200) that generates air flow. The air purification module (100, 200) includes a blower fan (140, 240) arranged inside a case (10) and a filter (120, 220) that removes foreign substances in the air flowing in through an intake port (10a).

[0072] The suction port (10a) connects the inside and outside of the case (10). A plurality of suction ports (10a) are formed. The case (10) can form a plurality of suction ports (10a) on its peripheral surface.

[0073] A plurality of suction ports (10a) are formed evenly in a circumferential direction along the outer surface of the case (10) so that air can be sucked in from any direction based on the case (10).

[0074] The plurality of suction ports (10a) are formed in a stripe shape extending vertically. Alternatively, the plurality of suction ports (10a) may be formed by perforating in a circular or oval shape.

[0075] In this way, the case (10) is configured in a cylindrical shape, and a plurality of suction ports (10a) are formed along the outer surface of the case (10), so that the amount of air sucked in can increase.

[0076] Air flowing into the intake port (10a) can pass through the filter (120, 220). The filter (120, 220) is provided in a cylindrical shape and may have a filter surface for filtering air.

[0077] The case (10) may have a cylindrical or conical (truncated cone) shape. A top cover (270) is placed on the top of the case (10). A booster module (300) is placed on the upper side of the top cover (270).

[0078] Referring to FIGS. 1 to 6, the booster module (300) may be coupled to the top cover (270) to seal the top of the air purification module (100, 200). The top cover (270) may have a cylindrical shape with an opening in the center. A portion of the booster module (300) may be inserted into the central opening of the top cover (270) from the top to the bottom.

[0079] Meanwhile, referring to FIG. 1 and FIG. 2a, the air purification module (100, 200) includes a first air purification module (100) and a second air purification module (200) arranged in a vertical direction.

[0080] For example, the second air purification module (200) may be arranged above the first air purification module (100). Since the first air purification module (100) is arranged at the bottom of the air purifier (1), it may be called a “lower air purification module” or “lower module,” and since the second air purification module (200) is arranged at the top of the air purifier (1), it may be called an “upper air purification module” or “upper module.”

[0081] The first air purification module (100) and the second air purification module (200) each include a blower fan (140, 240) and a filter (120, 220) that removes foreign substances in the air flowing into the intake port (10a).

[0082] The first air purification module (100) includes a first blower fan (140) and a first filter (120) that removes foreign substances in the air flowing into the intake port. In addition, the first air purification module (100) further includes a first motor (130) that rotates the first blower fan (140).

[0083] The second air purification module (200) includes a second blower fan (240) and a second filter (220) that removes foreign substances in the air flowing into the intake port. In addition, the second air purification module (200) further includes a second motor (230) that rotates the second blower fan (240).

[0084] Meanwhile, the air purification module (100, 200) includes an outlet (110a) formed at the bottom. The outlet (110a) is formed at the lower side of the first blower fan (140) and the first filter (120). When the second air purification module (200) is arranged above the first air purification module (100), the first outlet (110a) is formed at the bottom of the first air purification module (100).

[0085] Air from which foreign substances have been removed in the first filter (120) is discharged downward through the discharge port (110a). Since the air purified in the first air purification module (100) is discharged through the discharge port (110a), the discharge port (110a) may be referred to as the first discharge port (110a).

[0086] Meanwhile, the air purifier (1) includes a discharge port (310a) formed in the booster module (300). The discharge port (310a) is formed inside the booster module (300). In addition, the discharge port (310a) is formed above the second blower fan (240) and the second filter (220). That is, the discharge port (310a) is formed above the second air purification module (200).

[0087] Air from which foreign substances have been removed in the second filter (220) is discharged upward through the discharge port (310a). Since the purified air in the second air purification module (200) is discharged through the discharge port (310a), the discharge port (310a) may be referred to as a second discharge port (310a).

[0088] Additionally, a lower discharge grill (110) including multiple grills and designed to guide lower airflow is disposed at the bottom of the first air purification module (100). Additionally, an inner grill (310) including multiple grills and designed to guide upper airflow is disposed inside the booster module (300).

[0089] The inner grill (310) may each include a cylindrical inner wall (311) and an outer wall (312). The plurality of grills of the inner grill (310) may each connect the inner wall (311) and the outer wall (312) and may be arranged in a radial structure.

[0090] The lower discharge grille (110) may include a plurality of grilles having a concentric circle structure. The plurality of grilles may be a plurality of circles having the same center and different radii. The plurality of grilles may each include a section that is bent outward in the radial direction. The lower discharge grille (110) may include a plurality of grilles that are bent outward at a predetermined angle. The lower discharge grille (110) may be arranged at the discharge port (110a) to transmit downward discharge airflow laterally.

[0091] A bottom plate (170) is placed on the lower side of the first air purification module (100). The bottom plate (170) is placed so as to contact the ground and supports the air purification module (100, 200).

[0092] On the upper surface of the bottom plate (170), a flow guide (see 170a in FIG. 12) is arranged to laterally guide air discharged downward through the first discharge port (110a). The bottom plate (170) may further include a base (see 170b in FIG. 12) that supports the flow guide (170a). The flow guide (170a) may be formed on the upper surface of the base (170b). In addition, the flow guide (170a) and the base (170b) may be combined to form the bottom plate (170).

[0093] According to the present disclosure, the booster module (300) is integrated with the upper discharge path of the air purifier (1), so that 100% of the air flowing upward passes through the booster module (300), thereby enabling more purified air to be transmitted to a long distance.

[0094] According to the present disclosure, even if two air purification modules are stacked vertically, air is not discharged upward from the lower air purification module. Therefore, by forming an intake port (10a) on the peripheral surface of the case (10), it is possible to improve suction performance while preventing air discharged from the air purification module positioned at the lower side from being re-introduced into the air purification module positioned at the upper side.

[0095] Conventional two-stage air purifiers have a problem in that the discharge airflow of the lower air purification module is configured to be directed upward, which reduces air purification performance due to re-intake of the purified airflow. In the present disclosure, the discharge airflow direction of the lower air purification module is changed to downward, thereby preventing a backflow and improving air purification performance.

[0096] In addition, according to the present disclosure, since the air purifier (1) product does not have a mechanical structure for preventing a return airflow and a configuration for discharge, the product can be made more compact and the degree of freedom in design, such as the arrangement of internal components, can be improved.

[0097] For example, by positioning the control module (400) at the center of the air purifier (1) product, the length of the power and signal wires and the connection structure can be made more efficient, and the overall product height can be reduced. In addition, by positioning the control module (400) between the air purification modules (100, 200) and controlling the air purification modules (100, 200) with a single integrated control module (400), the air purification modules (100, 200) do not each have a control module, so the overall product height can be reduced.

[0098] Meanwhile, the particle size of general allergen substances is on the order of 3 to 100 ㎛, and since it is larger than fine dust, it has the property of settling to the bottom. Therefore, the airflow for floating allergen particles and capturing them with the filter (120, 220) can be implemented through the lower airflow discharged downward by the first air purification module (100). Therefore, allergen substances that cause allergies can be effectively removed through the lower airflow discharged downward by the first air purification module (100).

[0099] Meanwhile, the air purifier (1) may be equipped with a UVC LED (not shown) that outputs ultraviolet rays of a wavelength band that has a sterilizing effect on bacteria, mold, and microorganisms, and an ionizer (not shown) that eliminates bacteria and mold by passing electricity inside the case (10).

[0100] The motors (130, 230) can be accommodated in the motor fastening portions (125, 225), respectively. The air purification module (100, 200) includes a filter mounting portion (160, 260) on which a filter (120, 220) is mounted. A control module (400) is arranged between the filters (120, 220).

[0101] A first circular discharge port (110a) is formed at the bottom of the first air purification module (100). Air from which foreign substances have been removed in the first filter (120) is discharged downward through the first discharge port (110a).

[0102] The lower discharge grill (110) may include a plurality of grills bent at a predetermined angle in the outward direction. The lower discharge grill (110) may be arranged at the first discharge port (110a) to transmit the downward discharge airflow laterally.

[0103] The first filter (120) has a hollow cylindrical shape, and air can be introduced through the outer surface of the first filter (120). In the process of passing through the first filter (120), impurities such as fine dust in the air can be filtered out.

[0104] Since the first filter (120) has a cylindrical shape, air can be introduced from any direction based on the first filter (120). Accordingly, the air filtering area can be increased.

[0105] The first air purification module (100) includes a first fan housing (145) positioned on the lower side of the first filter (120), a first blower fan (140) positioned rotatably inside the first fan housing (145), and a first fan motor (130) that rotates the first blower fan (140).

[0106] The first blower fan (140) draws in air in the axial direction and discharges the air radially upward. The first fan housing (145) can accommodate the first blower fan (140) and form a fan path that guides the air flowing by the first blower fan (140) downward.

[0107] A second discharge port (310a) is formed inside the booster module (300). An inner grill (310) is arranged in the second discharge port (310a) to change the wind direction of air flowing upward. For example, the second discharge port (310a) may be formed in a ring shape. The inner grill (310) may be formed in a radial shape.

[0108] The air from which foreign substances have been removed in the second filter (220) is discharged upward through the second discharge port (210a). The second air purification module (200) includes a second fan housing (245) disposed above the second filter (120), a second blower fan (240) rotatably disposed inside the second fan housing (245), and a second fan motor (230) that rotates the second blower fan (240).

[0109] The second blower fan (240) draws in air in the axial direction and discharges the air radially upward. The second fan housing (245) can accommodate the second blower fan (240) and form a fan path that guides the air flowing by the second blower fan (240) upward.

[0110] The air flowing by the second blower fan (240) moves to the booster module (300).

[0111] The booster module (300) includes a head cover (320) forming the exterior and a display panel (390) that displays various information such as the operating mode and the concentration of fine dust / harmful gases indoors.

[0112] The head cover (320) may have a hemispherical shape with a hollow interior. In this specification, 'hemisphere' may mean a shape with a portion removed from a spherical shape, and is not limited to half of a spherical shape.

[0113] Meanwhile, the head cover (320) can accommodate components therein and form an internal path through which air flowing in from the second air purification module (200) moves. The head cover (320) can include a plurality of openings (320a, 320b).

[0114] The head cover (320) may include a first opening (320a) through which a display panel (390) is placed and through which air can be discharged, and a second opening (320b) through which air is introduced from a second air purification module (200).

[0115] The first opening (320a) may be formed to be inclined at a predetermined angle. The first opening (320a) may be positioned at the front of the head cover (320). Here, the front may refer to the direction in which the display panel (390) that displays information for the user faces, and the rear may refer to the opposite direction of the front.

[0116] The display panel (390) can be placed in the first opening (320a) to form the front exterior. In addition, the display panel (390) and the head cover (320) can form a slit (351) that is a space through which air passes.

[0117] A second opening (320b) may be formed on the lower side of the head cover (320). Accordingly, air is introduced from the second air purification module (200). The air introduced through the second opening (320b) may be discharged through the slit (351), thereby forming an upper airflow.

[0118] Meanwhile, a second discharge port (310a) is formed on the inner side of the head cover (320), and a ring-shaped inner grill (310) with an open center is arranged. A display panel (390) is arranged in front of the inner grill (310).

[0119] Air introduced through the second opening (320b) passes through the inner grill (310) and slit (351) in sequence.

[0120] The front driving unit (380) can be connected to the display panel (390) by penetrating the central opening (313) of the inner grill (310). Meanwhile, the booster module (300) includes a first motor (330) that moves the display panel (390) in a first direction.

[0121] The booster neck (360) can support the inner grill (310) from the lower side. In addition, the booster neck (360) can support the front driving unit (380). The booster neck (360) can be located at the center of the second opening (320b).

[0122] Additionally, the booster neck (360) may be positioned above the second fan motor (230) so as not to obstruct internal air flow. The booster neck (360) is coupled to the air purification module (100, 200), which is the main body of the air purifier (1).

[0123] The upper part of the booster neck (360) can be coupled with the booster module (300). The upper part of the booster neck (360) can be connected to the inner side of the inner grill (310). In order not to block the airflow discharged from the inner grill (310), the booster neck (360) is coupled to the inner side of the inner grill (310). That is, the booster neck (360) can be coupled between the inner walls (311) of the inner grill (310).

[0124] Meanwhile, a first booster motor mounting portion (335) supporting a first motor (330) is accommodated inside the booster neck (360). The first motor (330) can be coupled to the first booster motor mounting portion (335). Since the first motor (330) is also located inside the booster neck (360), the first motor (330) does not shield the internal flow path leading to the outlet (310a) of the inner grill (310).

[0125] The first motor (330) generates a driving force for moving the display panel (390). For example, the first motor (330) may be a step motor whose rotation angle can be easily controlled. In addition, the first motor (330) may include a motor capable of bidirectional rotation.

[0126] The lower end of the booster neck (360) may be coupled to another mechanical structure of the second air purification module (200). For example, the lower end of the booster neck (360) may be coupled to the upper side of the second fan housing (245). Alternatively, the lower end of the booster neck (360) may be coupled to the upper side of the second motor coupling portion (225). In another embodiment, a separate coupling portion (not shown) may be provided between the lower end of the booster neck (360) and the upper end of the second fan housing (245) or the second motor coupling portion (225).

[0127] The front driving unit (380) is connected to the display panel (390) and can move at least partly according to the movement of the display panel (390).

[0128] The top of the booster neck (360) may be formed to be inclined. Accordingly, the inner grill (310) may also be arranged to be inclined. In addition, the display panel (390) may be arranged parallel to the top of the booster neck (360). Accordingly, the visibility of information displayed on the display panel (390) can be increased, and clean air discharged through the slit (351) between the display panel (390) and the head cover (320) can be directed away.

[0129] Meanwhile, the display base (350) can support the display panel (390) from the lower side and form a space therein for accommodating a printed circuit board or the like. The display base (350) can move together with the display panel (390). Therefore, movement of the display panel (390) can mean movement of the display base (350).

[0130] Additionally, the bottom surface of the display base (350) can form a slit (351) through which air passes between the head covers (320). Accordingly, the display base (350) can guide the air discharged through the second discharge port (310a) radially outward.

[0131] The first motor (330) can change at least one of the shape, size, and angle of the slit (351) by moving the display panel (390) in the first direction. The shape of the discharge airflow can change depending on the movement of the display panel (390).

[0132] Depending on the movement direction and movement distance of the display panel (390), the size of the space between the display panel (390) and the head cover (320) can be varied, and the direction and distance in which the air discharged from the second air purification module (200) flows can be varied.

[0133] The first direction may be a direction perpendicular to the plurality of grills connecting the inner wall (311) and the outer wall (312) of the inner grill (310). For example, the first direction may be forward or backward.

[0134] A first gear (331) is connected to the first motor (330). The first gear (331) can be coupled to the motor shaft of the first motor (330). The first gear (331) can be connected to the first motor (330) and rotate.

[0135] Meanwhile, on the inner surface of the front driving unit (380), a second gear (381) extending in the vertical direction is arranged.

[0136] The first gear (331) is gear-coupled to the second gear (381). The second gear (381) is linked to the first gear (331) and can extend forward. The second gear (381) is formed with a plurality of gear teeth as a guide rail that converts rotational motion into linear motion. The first gear (331) is also formed with a plurality of gear teeth. The second gear (381) may be a type of rack gear in which a plurality of gear teeth are arranged in the longitudinal direction. When the first motor (330) is driven, the first gear (331) meshes with the second gear (381) and rotates.

[0137] As the first motor (330) is driven, the first gear (331) rotates and engages the second gear (381). As the first gear (331) rotates in a predetermined direction, the second gear (381) of the front drive unit (380) can be pushed upward. Conversely, as the first motor (330) rotates in the opposite direction, the second gear (381) of the front drive unit (380) can be lowered.

[0138] According to an embodiment, the front driving unit (380) may include a coupling unit (not shown) connected to the booster neck (360), a second gear (381) installed, and a moving unit (not shown) connected to the coupling unit and the display base (350). Depending on the operation of the first motor (330), the moving unit may move forward or backward, thereby moving the display panel (390) and the display base (350).

[0139] Figure 3 illustrates a state in which the display panel (390) has moved forward, and Figure 4 illustrates a state in which the display panel (390) has moved backward.

[0140] The first motor (330) can move the display panel (390) forward / backward and control the discharge airflow pattern of the booster module (300). For example, when the display panel (390) moves forward, the air discharged through the slit (351) can move forward a long distance. Additionally, when the display panel (390) moves backward, the air discharged through the slit (351) can move laterally.

[0141] According to the present disclosure, various airflows can be formed without adding a fan, and the gear structure does not shield the flow path, thereby improving air purification performance.

[0142] Meanwhile, an internal euro guide (321) is formed on the inside of the head cover (320). The internal euro guide (321) can connect the front edge (322) of the head cover (320) and the inner grill (310).

[0143] The inner surface of the inner euro guide (321) is formed into a curved surface to reduce flow resistance and change the flow direction of air discharged through the discharge port (310a) of the inner grill (310).

[0144] Additionally, a slit (351) is formed between the inner euro guide (350) and the display panel (390). Air discharged through the discharge port (310a) of the inner grill (310) passes through the slit (351) and is discharged from the booster module (300).

[0145] The booster module (300) may include a second motor (340) that rotates the head cover (320) in a second direction. The second motor (340) may be a step motor whose rotation angle can be easily controlled. In addition, the second motor (340) may include a motor capable of bidirectional rotation. The second motor (340) may be coupled to a second booster motor mounting portion (345).

[0146] A third gear (341) is connected to the second motor (340). The third gear (341) can be coupled to the motor shaft of the second motor (340). The third gear (341) can be connected to the second motor (340) and rotate.

[0147] Meanwhile, a fourth gear (325) extending along the inner surface of the head cover (320) is arranged. Meanwhile, the head cover (320) may include a curved portion (323) extending downward from the front edge (322). A fourth gear (325) may be arranged at the lower end of the inner surface of the curved portion (323).

[0148] The third gear (341) is gear-coupled to the fourth gear (325). The fourth gear (325) is linked to the third gear (341) and can extend forward. The fourth gear (325) is formed with a plurality of gear teeth as a guide rail that converts rotational motion into linear motion. The third gear (341) is also formed with a plurality of gear teeth. The fourth gear (325) may be a type of rack gear in which a plurality of gear teeth are arranged in the longitudinal direction. When the second motor (340) is driven, the third gear (341) meshes with the fourth gear (325) and rotates.

[0149] As the second motor (340) is driven, the third gear (341) rotates and engages the fourth gear (325). As the third gear (341) rotates in a predetermined direction, the fourth gear (325) of the head cover (320) can be pushed upward. Conversely, as the second motor (340) rotates in the opposite direction, the fourth gear (325) of the head cover (320) can be lowered.

[0150] As the second motor (340) is driven, the head cover (320) can rotate in a second direction. The second direction may be different from the first direction. Accordingly, a more diverse airflow can be formed.

[0151] To deliver the purified air from the air purifier over long distances, an additional fan was often installed. Furthermore, because the purifier discharge path and the Clean Booster path were separate, only a portion of the purified air discharged from the air purifier was transmitted over long distances via the fan.

[0152] However, according to the present disclosure, the air purifier discharge path and the clean booster path are integrated to transmit the clean air flow to a long distance without a separate fan, and the direction and shape of the discharge air flow can be controlled by moving the display panel (390).

[0153] FIGS. 7 to 10 are cross-sectional views of the operation mode of a booster module according to an embodiment of the present disclosure.

[0154] Referring to Fig. 7, as the first motor (330) operates, the first gear (331) rotates and the second gear (381) moves forward. The second gear (381) is positioned inside the front driving unit (380), and the front driving unit (380) is connected to the display panel (390) and the display base (350). Therefore, as the second gear (381) moves, the display panel (390) moves forward.

[0155] When the display panel (390) moves forward, the slit (351) between the display panel (290) and the head cover (320) becomes wide enough to allow the airflow to flow forward. Therefore, when the display panel (390) moves forward, a forward airflow is formed.

[0156] Referring to Fig. 8, as the first motor (330) operates, the first gear (331) rotates and the second gear (381) moves backward. As the second gear (381) moves, the display panel (390) moves forward.

[0157] When the display panel (390) moves rearward, the slit (351) between the display panel (290) and the head cover (320) narrows. Therefore, when the display panel (290) moves rearward, a lateral airflow is formed along the narrowed slit (351).

[0158] Referring to Fig. 9, as the second motor (340) operates, when viewed from the side, the third gear (341) rotates clockwise and the fourth gear (325) rotates clockwise. As the fourth gear (325) rotates clockwise, the head cover (320) can be driven downward.

[0159] Referring to Fig. 10, as the second motor (340) operates, when viewed from the side, the third gear (341) rotates counterclockwise and the fourth gear (325) rotates counterclockwise. As the fourth gear (325) rotates counterclockwise, the head cover (320) can be driven upward.

[0160] As shown in FIGS. 9 and 10, when the head cover (320) is driven up and down, the slits (351a, 352b) are formed asymmetrically, thereby forming more diverse airflows.

[0161] FIG. 11 is an assembly diagram of a first air purification module according to an embodiment of the present disclosure, and FIGS. 12 and 13 are exploded views of the first air purification module according to an embodiment of the present disclosure.

[0162] Referring to FIGS. 11 to 13, a first discharge port (110a) that opens downward is formed at the bottom of the first air purification module (100). A lower discharge grill (110) that changes the wind direction of air flowing downward is arranged at the first discharge port (110a).

[0163] A first circular discharge port (110a) is formed at the bottom of the first air purification module (100). Air from which foreign substances have been removed in the first filter (120) is discharged downward through the first discharge port (110a).

[0164] The lower discharge grill (110) may include a plurality of grills bent at a predetermined angle in the outward direction. The lower discharge grill (110) may be arranged at the first discharge port (110a) to transmit the downward discharge airflow laterally.

[0165] The first air purification module (100) includes a first filter mounting portion (160) on which a first filter (120) is mounted. The first filter (120) can be detachably mounted on the first filter mounting portion (160). The first filter (120) has a hollow cylindrical shape, and air can be introduced through the outer circumference of the first filter (120). In the process of passing through the first filter (120), impurities such as fine dust in the air can be filtered out.

[0166] Since the first filter (120) has a cylindrical shape, air can be introduced from any direction based on the first filter (120). Accordingly, the air filtering area can be increased.

[0167] The first filter mounting portion (160) may be provided in a cylindrical shape corresponding to the shape of the first filter (120). The first filter (120) may be slidably introduced toward the first filter mounting portion (160) during the mounting process. Conversely, the first filter (120) may be slidably withdrawn from the first filter mounting portion (160) during the dismounting process.

[0168] The first air purification module (100) includes a first fan housing (145) disposed on the lower side of the first filter (120), a first blower fan (140) rotatably disposed inside the first fan housing (145), and a first fan motor (130) that rotates the first blower fan (140). In addition, the first air purification module (100) may further include a wire cover (115) that protects a wire connected to the first fan motor (130).

[0169] The first blower fan (140) draws in air in the axial direction and discharges the air radially upward. The first fan housing (145) can accommodate the first blower fan (140) and form a fan path that guides the air flowing by the first blower fan (140) downward.

[0170] The first fan motor (130) may be supported by the first motor fastening member (125). The rotational axis of the first fan motor (130) may extend upward from the first fan motor (130) and may be connected to the first blower fan (140) by penetrating the bottom portion of the first motor fastening member (125).

[0171] A first magnet (180) is arranged on both sides of the first fan housing (145). The first magnet (180) can be coupled to a metal piece of the case (10). In addition, the magnet and the metal piece can be implemented by being replaced with each other. For example, the metal pieces can be arranged on both sides of the first fan housing (145), and the magnets can be arranged on the case (10).

[0172] A plurality of support members (150) extend upward from the first fan housing (145). For example, the support members (150) may be long beams. A wire cover (155) covering the support members (150) may be arranged on at least one surface of the plurality of support members (150). The support members (150) and the wire cover (155) may be spaced apart from each other to form a space in which wires, etc. may be arranged.

[0173] Net steel (165) is placed between the first filter (120) and the first blower fan (140) to prevent a body or other objects from entering the space where the first blower fan (140) is placed.

[0174] A bottom plate (170) is placed on the lower side of the first air purification module (100). The bottom plate (170) is placed so as to contact the ground and supports the air purification module (100, 200).

[0175] On the upper surface of the bottom plate (170), a flow guide (170a) is arranged to laterally guide air discharged downward through the first discharge port (110a). The bottom plate (170) may further include a base (170b) that supports the flow guide (170a).

[0176] Figure 14 is an enlarged view of the lower discharge airflow guide structure.

[0177] Referring to FIGS. 11 to 14, a first discharge port (110a) is formed at the bottom of the first air purification module (100), and a bottom discharge grill (110) for guiding the bottom discharge airflow is arranged at the first discharge port (110a).

[0178] The lower discharge grill (110) may include a plurality of grills bent at a predetermined angle in the outward direction. The lower discharge grill (110) may be arranged at the first discharge port (110a) to transmit the downward discharge airflow laterally.

[0179] When the first motor (130) rotates the first blower fan (140), a bottom discharge airflow is formed in which the air purified in the first filter (120) is discharged to the first discharge port (110a).

[0180] On the upper surface of the bottom plate (170), a flow guide (170a) is arranged to guide air discharged downward through the first discharge port (110a) laterally.

[0181] Particles of common allergens are larger and heavier than indoor airborne dust particles measuring 1 ㎛, ranging from 3 to 100 ㎛ in size, and tend to settle to the floor. For example, mold particles are 10 ㎛ in size, house dust allergen particles are 15 ㎛ in size, and pollen particles are 50 ㎛ in size.

[0182] Viruses, cigarette smoke, etc. are very small and do not settle but rather remain suspended, and indoor floating dust remains suspended for a considerable period of time, taking 9 to 10 hours to settle from the ceiling to the floor of a house.

[0183] However, under the same conditions, mold particles, house dust allergen particles, and pollen particles float and settle for only a short time, from a few minutes to a few seconds. Therefore, air purifiers struggle to capture allergen particles, and using a vacuum cleaner to remove the accumulated particles is the only option.

[0184] According to the present disclosure, by floating allergen particles in the downward airflow discharged by the first air purification module (100), an airflow for capturing them by the filter (120, 220) can be implemented.

[0185] Meanwhile, according to one embodiment of the present disclosure, the bottom discharge airflow velocity can be controlled in response to the gravitational settling velocity (Terminal Velocity) of the allergen particles. The bottom discharge airflow velocity can be set to be greater than the gravitational settling velocity.

[0186] The rotation speed of the first blower fan (140) can be controlled based on the gravitational settling velocity of the allergen particles. The rotation speed of the first blower fan (140) can correspond to a lower discharge airflow velocity set greater than the gravitational settling velocity. A controller mounted on the main PCB (430) of the control module (400) can control the speed of the first blower fan (140).

[0187] Gravitational settling velocity can be calculated by using the balance between gravity, buoyancy, and drag of a particle. For example, the gravitational settling velocity of an allergen particle can be calculated using the well-known Stokes equation for calculating the settling velocity.

[0188] The bottom exhaust airflow velocity can be set to be greater than the gravitational settling velocity of larger house dust allergen particles so as to suspend both 10 μm mold particles and 15 μm house dust allergen particles. For example, the bottom exhaust airflow velocity can be set to be greater than 0.0038 m / s.

[0189] The euro guide (170a) includes a curved portion (173), a flat portion (171) extending laterally from the curved portion (173), and a boss (172) protruding upward from an end of the flat portion (171).

[0190] The boss (172) can form an airflow that is effective in floating allergen particles. The boss (172) can reduce the flow resistance at the end. The boss (172) can prevent a flow separation phenomenon at the end. The boss (172) can prevent a flow separation phenomenon at the end. The boss (172) can be formed in a ring shape along the edge of the flow guide (170a). The boss (172) protrudes from the flat portion (171) by a predetermined height (d1) to prevent turbulence at the end and to raise the airflow. Accordingly, the flow separation phenomenon can be prevented while effectively floating allergen particles on the floor.

[0191] Meanwhile, if the height (d1) of the boss (172) is too high, the airflow may be excessively upwardly diverted, which may be inappropriate for floating allergen particles on the floor. Therefore, it is preferable that the height (d1) of the boss (172) be formed to be less than several millimeters to prevent the flow separation phenomenon.

[0192] The curved portion (173) may be formed to surround the central pillar (175) of the bottom plate (170). The curved portion (173) reflecting the curvature of the euro guide (170a) may be formed to be round with a predetermined radius of curvature (R1). The radius of curvature (R1) may be set so as to naturally guide the lower discharge airflow to the side.

[0193] The grill bending angle of the lower discharge grill (110) can be formed at 20 to 40 degrees so as to raise the airflow by more than 20 degrees to float particles on the floor.

[0194] In addition, the radius of curvature (R1) may be set corresponding to the grill bending angle of the lower discharge grill (110). For example, a predetermined angle (ag1) may be determined from the vertical direction corresponding to the grill bending angle of the lower discharge grill (110), and a radius of curvature (R1) capable of forming the determined angle (ag1) may be applied. More specifically, the angle (ag1) may be set smaller than the grill bending angle of the lower discharge grill (110).

[0195] The predetermined angle (ag1) may be the angle between the central pillar (175) and the curved portion (173). In this case, the predetermined angle (ag1) may be smaller than the discharge airflow angle through the discharge port (110). The discharge airflow angle may correspond to the grill arrangement angle and the grill bending angle of the lower discharge grill (110).

[0196] The curved portion (173) can naturally guide the lower discharge airflow laterally to reduce flow resistance. According to the present disclosure, a curvature is applied to the bottom plate (170) to transfer the lower discharge airflow laterally, and a boss (171) is applied to the end to form a turbulent flow for floating allergen particles. That is, the flow guide (170a) reflects the slope and curvature, and a boss is reflected to improve flow separation, thereby minimizing the resistance of the lower discharge airflow.

[0197] FIG. 15 is an assembly diagram of a control module according to an embodiment of the present disclosure, and FIGS. 16 and 17 are exploded views of a control module according to an embodiment of the present disclosure.

[0198] Referring to FIGS. 15 to 17, the control module (400) has an outer appearance formed by combining an upper cover (410) and a lower cover (420), and houses a main PCB (430) on which circuits such as a controller that controls the overall operation of the air purifier (1) are mounted.

[0199] In addition, the upper cover (410) and the lower cover (420) have an open center, and an upper filter pressing plate (440) and a lower filter pressing plate (450) are respectively arranged in the open center. The upper filter pressing plate (440) and the lower filter pressing plate (450) may each be connected to a plurality of springs (435).

[0200] The control module (400) may be located between the first air purification module (100) and the second air purification module (200). The control module (400) may be located above the first air purification module (100) and below the second air purification module (200).

[0201] Since the control module (400) is placed in the middle of the first air purification module (100) and the second air purification module (200), the length and deviation of the wiring connecting the control module (400) and the first and second air purification modules (100) can be minimized, and there is an advantage in that the wiring structure can be simplified.

[0202] In addition, since the filter press plate (440, 450) is integrated with the upper and lower covers (410, 420), vibration and noise can be further reduced, and manufacturing costs can be reduced.

[0203] When the first filter (120) is mounted on the first filter mounting portion (160) of the first air purification module (100), the first filter (120) presses the lower filter pressing plate (450). When the second filter (220) is mounted on the second filter mounting portion (260) of the second air purification module (200), the second filter (220) presses the upper filter pressing plate (440). Accordingly, the filters (120, 220) can be better supported.

[0204] Additionally, the control module (400) includes an upper UVC LED (481) and a lower UVC LED (482). The upper UVC LED (481) outputs UVC light upward toward the second air purification module (200) and the second filter (220). The lower UVC LED (482) outputs UVC light downward toward the first air purification module (100) and the first filter (120).

[0205] UV light can typically be categorized by wavelength. For example, UV light can be categorized into UVA (320 to 400 nm), UVB (280 to 320 nm), and UVC (200 to 280 nm). In particular, short-wavelength UVC is effective for sterilization, as it destroys bacterial DNA and causes chemical reactions in specific substances.

[0206] The mounting portion (460) supports the main PCB (430). In addition, various sensors such as an LED sensor (471), a laser sensor (472), and a gas sensor (473) may be mounted on the mounting portion (460). Some sensors (e.g., the LED sensor (471)) may further include a cover (465).

[0207] The LED sensor (471) can sense the amount of dust by shining infrared LED light and detecting the light scattered by dust. The laser sensor (472) can detect the amount of dust using laser light. The gas sensor (473) can detect the amount of gas in the air.

[0208] Although an LED sensor (471), a laser sensor (472), and a gas sensor (473) are exemplified in FIGS. 16 and 17, the present disclosure is not limited thereto, and the types and combinations of sensors provided may vary. In addition, one or more communication modules (not shown), such as Wi-Fi, may be provided within the control module (400).

[0209] FIG. 18 and FIG. 19 are exploded views of a second air purification module according to one embodiment of the present disclosure.

[0210] Referring to FIGS. 18 and 19, a hollow upper cover (270) is placed on the upper portion of the second air purification module (200). Air from which foreign substances have been removed in the second filter (220) flows upward and passes through the upper cover (270) to enter the booster module (300).

[0211] In the second air purification module (200), the second filter (220) is also arranged in the second filter mounting portion (260), and can be described similarly to the first filter (120) and the first filter mounting portion (160) described above. However, there is a difference in that the second filter (220) and the second filter mounting portion (260) are located on the lower side of the second blower fan (240) and the second fan housing (245), whereas the first filter (120) and the first filter mounting portion (160) are located on the upper side of the first blower fan (140) and the first fan housing (145).

[0212] The second air purification module (200) includes a second fan housing (245) positioned on the upper side of the second filter (120), a second blower fan (240) positioned rotatably inside the second fan housing (245), and a second fan motor (230) that rotates the second blower fan (240).

[0213] In addition, the second air purification module (200) may further include a wire cover (215) that protects the wire connected to the second fan motor (230). The second air purification module (200) may further include a rotation bearing (290) that reduces frictional force generated during rotation.

[0214] The second blower fan (240) draws in air in the axial direction and discharges the air radially upward. The second fan housing (245) can accommodate the second blower fan (240) and form a fan path that guides the air flowing by the second blower fan (240) upward.

[0215] The second fan motor (230) may be supported by the second motor fastening member (225). The rotational axis of the second fan motor (230) may extend downward from the second fan motor (230) and may be connected to the second blower fan (240) by penetrating the upper surface of the second motor fastening member (225).

[0216] Second magnets (280) are arranged on both sides of the second fan housing (245). The second magnets (280) can be combined with metal pieces of the case (10). In addition, the magnets and metal pieces can be implemented by being interchangeable. For example, metal pieces can be arranged on both sides of the second fan housing (245), and magnets can be arranged on the case (10).

[0217] A plurality of support members (250) extend downward from the second fan housing (245). For example, the support members (250) may be long beams. A wire cover (255) covering the support members (250) may be arranged on at least one surface of the plurality of support members (250). The support members (250) and the wire cover (255) may be spaced apart from each other to form a space in which wires, etc. may be arranged. A net steel (265) may be arranged between the second filter (220) and the second blower fan (240) to prevent a body or other objects from entering the space in which the second blower fan (240) is arranged.

[0218] Although the preferred embodiments of the present disclosure have been illustrated and described above, the present disclosure is not limited to the specific embodiments described above, and various modifications may be made by a person having ordinary skill in the art to which the present disclosure pertains without departing from the gist of the present disclosure as claimed in the claims, and such modifications should not be understood individually from the technical idea or prospect of the present disclosure.

Claims

1. A case with a suction port formed on the periphery; An air purification module including a blower fan disposed inside the case and a filter for removing foreign substances in the air flowing into the intake port; and A booster module disposed above the air purification module; The above booster module, head cover, An inner grill in the shape of a ring with an open center and an outlet formed on the inside of the above head cover, A display panel placed in front of the inner grille, A front driving unit connected to the display panel through the central opening of the inner grill, and An air purifier comprising a first motor for moving the display panel in a first direction.

2. In paragraph 1, The above booster module, A first gear that is connected to the first motor and rotates; An air purifier further comprising a second gear located on the inner side of the front driving unit and interlocked with the first gear.

3. In paragraph 1, The above booster module, A first booster motor holder supporting the first motor, An air purifier further comprising a booster neck that accommodates the first booster motor mounting portion therein and supports the inner grill from the lower side.

4. In paragraph 3, An air purifier in which the upper part of the booster neck is formed to be inclined.

5. In paragraph 4, An air purifier wherein the above display panel is arranged parallel to the top of the booster neck.

6. In paragraph 3, The above head cover, An air purifier having a hemispherical shape including a first opening in which the display panel is placed and a second opening in which the booster neck is placed.

7. In paragraph 1, The above first direction is an air purifier that is perpendicular to a plurality of grills connecting the inner wall and the outer wall of the inner grill.

8. In paragraph 1, The above booster module, A second motor that rotates the head cover in a second direction; A third gear that is connected to the second motor and rotates, An air purifier further comprising a fourth gear arranged on the inner side of the head cover and linked to the third gear.

9. In paragraph 8, An air purifier in which the second direction is different from the first direction.

10. In paragraph 1, An internal euro guide is formed on the inside of the above head cover, The above inner euro guide is an air purifier that connects the front edge of the head cover and the inner grill.

11. In paragraph 10, An air purifier in which air discharged through the inner grill passes through a slit formed between the inner euro guide and the display panel.

12. In paragraph 1, The above air purification module, It includes a first air purification module and a second air purification module arranged above the first air purification module, An air purifier in which air purified in the second air purification module is discharged through the inner grill.

13. In paragraph 12, A first outlet is formed at the bottom of the first air purification module, An air purifier in which air purified in the first air purification module is discharged through the first discharge port.

14. In paragraph 13, Further comprising a bottom plate disposed on the lower side of the first air purification module and in contact with the ground; An air purifier in which a flow guide is arranged on the upper surface of the bottom plate to guide air discharged downward through the first discharge port laterally.

15. In paragraph 14, The above Euro guide is, An air purifier comprising a curved portion, a flat portion extending laterally from the curved portion, and a boss protruding upward from an end of the flat portion.

16. In paragraph 13, In the above first outlet, An air purifier having a lower discharge grille including a plurality of grilles bent in an outward direction.

17. A case in which a suction port is formed on the periphery; An air purification module including a blower fan disposed inside the case and a filter for removing foreign substances in the air flowing into the intake port; and A booster module disposed above the air purification module; The above booster module, head cover, An inner grill in the shape of a ring with an open center and an outlet formed on the inside of the above head cover, A display panel placed in front of the inner grille, A front driving unit connected to the display panel through the central opening of the inner grill, and An air purifier comprising a motor for rotating the head cover.

18. In paragraph 17, An air purifier comprising a motor for moving the above display panel.

19. In paragraph 18, An internal euro guide is formed on the inside of the above head cover, The above inner euro guide is an air purifier that connects the front edge of the head cover and the inner grill.

20. In paragraph 19, An air purifier in which air discharged through the inner grill passes through a slit formed between the inner euro guide and the display panel.

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