Air purifier

Abstract

An air purifier according to an embodiment of the present disclosure comprises: a case having a suction port formed through a circumferential surface thereof; a first filter disposed inside the case to remove foreign substances in the air introduced through the suction port; a first blowing fan disposed above the first filter; a first discharge port formed above the first blower fan; a second filter disposed inside the case to remove foreign substances in the air introduced through the suction port; a second blowing fan disposed under the second filter; a second discharge port formed above the second blowing fan; and a dual shaft motor having shafts protruding in both directions, upward and downward, wherein the dual shaft motor is disposed between the first blowing fan and the second blowing fan, and comprises a first shaft extending downward to be connected to the first blowing fan and a second shaft extending upward to be connected to the second blowing fan.

Description

air purifier

[0001] The present disclosure relates to an air purifier, and more particularly, to an air purifier capable of improving energy efficiency.

[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] Prior art documents 1 (Korean Patent Publication No. KR10-2022-0083719) and 2 (Korean Patent Publication No. KR10-2017-0140578) disclose air purifiers with blower units arranged vertically to filter large volumes of air. These air purifiers have the advantage of increased blower capacity.

[0004] However, these air purifiers, each equipped with a motor that rotates the fan, consume significant energy during fan operation, potentially increasing power consumption and reducing energy efficiency. Furthermore, these air purifiers require space to mount each fan component, increasing the overall height of the product.

[0005] The problem that the present disclosure seeks to solve is to provide an air purifier that can reduce power consumption and improve energy efficiency.

[0006] 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.

[0007] The problem that the present disclosure seeks to solve is to provide an air purifier that can simplify the internal component mounting structure and reduce the product height.

[0008] 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.

[0009] An air purifier according to an embodiment of the present disclosure can improve energy efficiency by rotating blower fans with a dual-axis motor.

[0010] An air purifier according to an embodiment of the present disclosure can improve air purification performance by stacking an air purification module that discharges clean air downward and an air purification module that discharges clean air upward.

[0011] An air purifier according to one embodiment of the present disclosure includes a case having an intake port formed on a peripheral surface, a first filter disposed inside the case to remove foreign substances in air flowing into the intake port, a first blower fan disposed above the first filter, a first discharge port formed above the first blower fan, a second filter disposed inside the case to remove foreign substances in air flowing into the intake port, a second blower fan disposed below the second filter, a second discharge port formed below the second blower fan, and a dual-shaft motor having shafts protruding in both vertical directions, wherein the dual-shaft motor includes a first shaft disposed between the first blower fan and the second blower fan and extending downwardly to be connected to the first blower fan, and a second shaft extending upwardly to be connected to the second blower fan.

[0012] The above suction port may include a first suction port formed on the lower side of the first discharge port, and a second suction port formed on the upper side of the second discharge port.

[0013] The air purifier may further include a first grill disposed at the first outlet to guide air flowing upward from the first blower fan radially outward, and a second grill disposed at the second outlet to guide air flowing downward from the second blower fan radially outward.

[0014] The first axis may be connected to the first blower fan by penetrating the central opening of the first grill, and the second axis may be connected to the second blower fan by penetrating the central opening of the second grill.

[0015] The first and second grills may each include a plurality of grills bent in an outward direction.

[0016] The above plurality of grills may have a concentric circle structure.

[0017] The length of the plurality of grills may be longer than the spacing between the plurality of grills.

[0018] The first and second grills may each include a plurality of grills arranged to be inclined at a predetermined angle.

[0019] The air purifier further includes a motor fastening portion that accommodates the biaxial motor, and a plurality of grills may be arranged on a periphery of the motor fastening portion.

[0020] The above motor coupling part may include a first motor coupling part disposed on the lower side and including a first grill part corresponding to the first discharge port, and a second motor coupling part disposed on the upper side and including a second grill part corresponding to the second discharge port.

[0021] The first grill can be mounted by being inserted into the first motor fastening portion, and the second grill can be mounted by being inserted into the second motor fastening portion.

[0022] The first grill may be positioned on the lower side of the first grill portion, and the second grill may be positioned on the upper side of the second grill portion.

[0023] The shapes of the first and second discharge ports can correspond to the shapes of the first and second grill parts.

[0024] The above cases may each have a semi-cylindrical shape and include first and second cases in which the suction port and the first and second discharge ports are formed.

[0025] The air purifier may further include a top cover disposed on the upper side of the case, a control module disposed on the inner side of the top cover, and a display panel disposed on the upper side of the control module.

[0026] An air purifier according to one embodiment of the present disclosure includes a case having an intake port formed on a peripheral surface, a first filter disposed inside the case to remove foreign substances in air flowing into the intake port, a first blower fan disposed above the first filter, a first discharge port formed below the first filter, a second filter disposed inside the case to remove foreign substances in air flowing into the intake port, a second blower fan disposed below the second filter, a second discharge port formed above the second blower fan, and a dual-axis motor having a shaft protruding in both vertical directions, wherein the dual-axis motor may include a first shaft disposed between the first blower fan and the second blower fan and extending downwardly to be connected to the first blower fan, and a second shaft extending upwardly to be connected to the second blower fan.

[0027] An air purifier according to one embodiment of the present disclosure may further include a grill disposed at the first outlet to guide air flowing downward from the first blower fan radially outward.

[0028] An air purifier according to one embodiment of the present disclosure may further include a grill disposed at the second outlet to guide air flowing upward from the second blower fan radially outward.

[0029] An air purifier according to one embodiment of the present disclosure may further include a motor fastening part that accommodates the biaxial motor.

[0030] The above first blower fan and the above second blower fan can be arranged symmetrically with respect to the two-axis motor.

[0031] According to at least one of the embodiments of the present disclosure, a first blower fan disposed at the upper side, a second blower fan disposed at the lower side, and a dual-axis motor having shafts protruding in both the upper and lower directions and connected to the first and second blower fans can be included, thereby reducing power consumption and improving energy efficiency.

[0032] By locating the common two-axis motor and motor connection part in the center of the air purifier product, the product height can be reduced and manufacturing costs can be reduced.

[0033] By including a first discharge port formed on the upper side of the first blower fan, a second discharge port formed on the lower side of the second blower fan, a first intake port formed on the lower side of the first discharge port, and a second intake port formed on the upper side of the second discharge port, an intake airflow in the upper and lower parts and a concentrated discharge airflow in the central part can be formed.

[0034] By further including a first grill arranged at the first outlet to guide air flowing upward from the first blower fan radially outward, and a second grill arranged at the second outlet to guide air flowing downward from the second blower fan radially outward, the direction of the discharged air can be effectively guided.

[0035] The effects of the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

[0036] Other effects will be apparent to those skilled in the art from the description of the claims.

[0037] FIG. 1 is a drawing illustrating the appearance of an air purifier according to one embodiment of the present disclosure.

[0038] FIG. 2 is a cross-sectional view of an air purifier according to an embodiment of the present disclosure.

[0039] Figure 3 is an exploded view of an air purifier according to one embodiment of the present disclosure.

[0040] FIG. 4 is a drawing illustrating a two-axis motor according to one embodiment of the present disclosure.

[0041] FIG. 5 is a drawing for reference in the description of an inner grill according to one embodiment of the present disclosure.

[0042] FIGS. 6 and 7 are drawings for reference in the description of the first grill according to one embodiment of the present disclosure.

[0043] FIG. 8 and FIG. 9 are drawings for reference in the description of a second grill according to one embodiment of the present disclosure.

[0044] FIG. 10 is a cross-sectional view of an air purifier according to an embodiment of the present disclosure.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] FIG. 1 is a drawing showing the appearance of an air purifier according to an embodiment of the present disclosure, FIG. 2 is a cross-sectional view of an air purifier according to an embodiment of the present disclosure, and FIG. 3 is an exploded view of an air purifier according to an embodiment of the present disclosure.

[0050] Referring to FIGS. 1 to 3, 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 based on 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 based on the case (10).

[0051] 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.

[0052] 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).

[0053] 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.

[0054] 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).

[0055] 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.

[0056] 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.

[0057] 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.

[0058] Meanwhile, referring to FIGS. 1 to 3, 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.

[0059] 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.”

[0060] 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).

[0061] 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.

[0062] 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.

[0063] The case (10) may have a cylindrical shape. The case (10) may include a first case (11) having a semi-cylindrical shape and covering a portion of the outer surface of the air purification module (100, 200), and a second case (12) having a semi-cylindrical shape and covering the remaining portion of the outer surface of the air purification module (100, 200).

[0064] Alternatively, the case (10) may have a conical shape (a truncated cone shape), and the first case (11) and the second case (12) may each have a semi-conical shape.

[0065] The first case (11) and the second case (12) can be combined to form the exterior of the air purifier (1). The first case (11) covers the front of the air purifier (1) and may be referred to as a "front case" or "front cover." The second case (12) covers the rear of the air purifier (1) and may be referred to as a "rear case" or "rear cover."

[0066] The first case (11) includes an upper portion (11a) corresponding to the second air purification module (200) and a lower portion (11b) corresponding to the first air purification module (100). An intake port (10a) is formed in each of the upper portion (11a) and the lower portion (11b).

[0067] The second case (12) includes an upper portion (12a) corresponding to the second air purification module (200) and a lower portion (12b) corresponding to the first air purification module (100). An intake port (10a) is formed in each of the upper portion (12a) and the lower portion (12b).

[0068] The suction port (10a) may include a first suction port (10aa) formed at the lower portion (11b, 12b) and a second suction port (10ab) formed at the upper portion (11a, 12a).

[0069] A central discharge portion (30) is formed between the first case (11) and the second case (12). Air drawn into the intake port (10a) is purified in the filter (120, 220), and the purified air is discharged through the central discharge portion (30).

[0070] In another embodiment, the case (10) may include an upper case (not shown) and a lower case (not shown). In this case, a central discharge portion (30) may be formed between the upper case and the lower case.

[0071] The upper case may include a first upper case having a semi-cylindrical shape and covering a portion of the outer surface of the second air purification module (200), and a second upper case having a semi-cylindrical shape and covering a remaining portion of the outer surface of the second air purification module (200). In addition, the lower case may include a second lower case having a semi-cylindrical shape and covering a portion of the outer surface of the first air purification module (200), and a second lower case having a semi-cylindrical shape and covering a remaining portion of the outer surface of the first air purification module (100).

[0072] Meanwhile, the first blower fan (140) is positioned above the first filter (120). A first discharge port (30a) is formed on the upper side of the first blower fan (140). As the first blower fan (140) rotates, air sucked through the suction port (10a) formed in the lower case (11b, 12b) flows upward through the first filter (120) and is discharged through the first discharge port (30a).

[0073] The second blower fan (240) is positioned below the second filter. A second discharge port (30b) is formed at the lower side of the second blower fan (240). Air sucked through the suction port (10a) formed in the upper case (11a, 12a) flows downward through the second filter (220) and is discharged through the second discharge port (30b).

[0074] The first discharge port (30a) and the second discharge port (30b) may be formed adjacent to the central portion of the air purifier (1). The first discharge port (30a) and the second discharge port (30b) may be collectively referred to as the central discharge portion (30).

[0075] The first suction port (10aa) may be formed on the lower side of the first discharge port (30a), and the second suction port (10ab) may be formed on the upper side of the second discharge port (30b). The lower suction airflow flowing into the first suction port (10aa) passes through the first filter (120) and is discharged through the upper first discharge port (30a). The upper suction airflow flowing into the second suction port (10ab) passes through the second filter (220) and is discharged through the lower second discharge port (30b).

[0076] Meanwhile, a dual-axis motor (500) with shafts protruding in both the vertical and horizontal directions is placed between the first blower fan (140) and the second blower fan (240).

[0077] FIG. 4 is a drawing illustrating a two-axis motor according to one embodiment of the present disclosure.

[0078] Referring to FIGS. 1 to 4, a dual-axis motor (500) includes a motor body (510) and a shaft (515) protruding from the motor body (510) in both the upper and lower directions. The shaft (515) includes a first shaft (515a) extending in a downward direction and connected to a first blower fan (140), and a second shaft (515b) extending in an upward direction and connected to a second blower fan (240).

[0079] The first blower fan (140) is rotatably connected to the first shaft (515a). The second blower fan (240) is rotatably connected to the second shaft (515b).

[0080] Meanwhile, a first gear (520) is connected to the first shaft (515a), and the first gear (520) can be inserted into the center of the first blower fan (140) and connected. A second gear (530) is connected to the second shaft (515b), and the second gear (530) can be inserted into the center of the second blower fan (240) and connected.

[0081] The first blower fan (140) and the second blower fan (240) can rotate by receiving rotational power from the dual-axis motor (500). When the dual-axis motor (500) operates, the first blower fan (140) and the second blower fan (240) connected to the dual-axis motor (500) rotate at the same rotational speed.

[0082] According to the present disclosure, by rotating two fans (140, 240) with one dual-axis motor (500), power consumption can be reduced and energy efficiency can be improved compared to when two motors are used.

[0083] According to the present disclosure, the discharge portion (30) is integrated into the center, the discharge structure is simplified, and a concentrated airflow can be formed in the center of the air purifier (1) product.

[0084] Meanwhile, an inner grill (110, 210) is arranged in the central discharge portion (30) to guide air radially outward.

[0085] A first grill (110) is arranged at the first outlet (30a) to guide air flowing upward from the first blower fan (140) radially outward. A second grill (210) is arranged at the second outlet (30b) to guide air flowing downward from the second blower fan (240) radially outward.

[0086] FIG. 5 is a drawing for reference in the description of an inner grill according to an embodiment of the present disclosure, FIGS. 6 and 7 are drawings for reference in the description of a first grill according to an embodiment of the present disclosure, and FIGS. 8 and 9 are drawings for reference in the description of a second grill according to an embodiment of the present disclosure.

[0087] Referring to FIGS. 5 to 9, the inner grill (110, 210) may include a plurality of grills (613) having a concentric circle structure. The plurality of grills (613) may be a plurality of circles each having the same center and different radii. The inner grill (110, 210) has a plurality of grills (613) having a concentric circle structure arranged between the outer wall (612) and the inner wall (611).

[0088] A central opening (614) may be located on the inner side of the inner wall (611). The first shaft (515a) of the dual-axis motor (500) passes through the central opening (614) of the first grill (110) and is connected to the first blower fan (140). The second shaft (515b) of the dual-axis motor (500) passes through the central opening (614) of the second grill (210) and is connected to the second blower fan (240).

[0089] The length of the grill (613) may be longer than the spacing (d1) between the grills (613). Accordingly, a sufficient length can be secured to guide the airflow laterally.

[0090] The plurality of grilles (613) may each include a section that is bent radially outward. The inner grilles (110, 210) may each include a plurality of grilles (613) that are bent outward at a predetermined angle. The first grill (110) is arranged at the first outlet (30a) and can laterally transmit the discharge airflow flowing upward. The second grill (210) is arranged at the second outlet (30b) and can laterally transmit the discharge airflow flowing downward.

[0091] Meanwhile, each grill (900) of the inner grill (110, 210) may be bent at a predetermined angle (ag). The grill bending angle (ag) may be formed at 20 to 40 degrees. If the grill bending angle (ag) is less than 20 degrees, the airflow may not be sufficiently diverted to the side. If the grill bending angle (ag) is greater than 40 degrees, loss may increase. The thickness (d2) of the grill (900) may also be configured differently in some sections.

[0092] In another embodiment, the inner grille (110, 210) may include a plurality of straight grilles, each arranged at an angle. The straight grilles may be arranged at an angle corresponding to the discharge angle (ag). In this case, the airflow may be formed along the discharge angle (ag) corresponding to the angle of arrangement of the straight grilles.

[0093] A dual-axis motor (500) can be accommodated in a motor fastening member (125, 225). A plurality of grills can be arranged on the periphery of the motor fastening member (125, 225).

[0094] The motor fastening part (125, 225) includes a first motor fastening part (125) positioned on the lower side and a second motor fastening part (225) positioned on the upper side. The first motor fastening part (125) and the second motor fastening part (225) can be combined to form an internal space that accommodates a dual-axis motor (500).

[0095] The first motor fastening part (125) includes a first grill part (125a) corresponding to the first discharge port (30a), and the second motor fastening part (225) includes a second grill part (225a) corresponding to the second discharge port (30b).

[0096] In addition, the first grill (110) may be inserted and mounted into the first motor fastening portion (125), and the second grill (210) may be inserted and mounted into the second motor fastening portion (225). The first motor fastening portion (125) may further include a coupling portion (125b) for accommodating the dual-axis motor (500) and for mounting the first grill (110). The second motor fastening portion (225) may further include a coupling portion (225b) for accommodating the dual-axis motor (500) and for mounting the second grill (210).

[0097] At this time, the first grill (110) may be positioned on the lower side of the first grill part (125a), and the second grill (210) may be positioned on the upper side of the second grill part (225a).

[0098] According to an embodiment, the shapes of the first and second discharge ports (30a, 30a) may correspond to the shapes of the first and second grill portions (125a, 225a). For example, if the first and second discharge ports (30a, 30a) are formed in a stripe type, the first and second grill portions (125a, 225a) may also be formed in a stripe type.

[0099] According to the present disclosure, a common two-axis motor (500) and a motor fastening part (125, 225) are placed between the first and second air purification modules (100, 200), thereby reducing the product height and reducing manufacturing costs.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] The first air purification module (100) includes a first fan housing (145) arranged above the first filter (120). The first blower fan (140) can be rotatably arranged inside the first fan housing (145).

[0104] 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) upward.

[0105] 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 above 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 below the first blower fan (140) and the first fan housing (145).

[0106] 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) downward.

[0107] 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 (350). 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 (340). The first air purification module (100) may include a lower filter mounting portion cover (320), and the second air purification module (200) may include an upper filter mounting portion cover (310).

[0108] A support (170) is placed on the lower side of the first air purification module (100). The support (170) can be combined with a plate (330). The support (170) is placed so as to contact the ground and supports the air purification module (100, 200).

[0109] Meanwhile, a top cover (270) is placed on the top of the combined case (10). A control module (400) is placed on the inside of the top cover (270). The control module (400) can accommodate a main PCB on which circuits such as a controller that controls the overall operation of the air purifier (1) are mounted.

[0110] A display (390) is arranged at the top of the control module (400). In addition, operation buttons for operating the air purifier (1) may be further arranged at the top of the control module (400). The display base (350) may support the display (390) from the bottom.

[0111] According to the present disclosure, a dual-axis motor (500) is applied to the center of an air purifier (1), so that the upper / lower fans (140, 240) can be rotated with a single motor, thereby improving power consumption during rated operation and enhancing energy efficiency. In addition, since the number of motors is reduced, the component fastening structure is simplified and the overall height of the product can be reduced.

[0112] Unlike the above-described embodiment, it is also possible for the discharge port to be formed separately on the upper and lower sides of the air purifier (1).

[0113] FIG. 10 is a cross-sectional view of an air purifier according to an embodiment of the present disclosure, showing an embodiment in which the discharge port is formed separately on the upper and lower sides of the air purifier (1).

[0114] Hereinafter, the embodiment of FIG. 10 will be described mainly with reference to the differences between the embodiment described with reference to FIGS. 1 to 9, but it will be apparent that the omitted common parts are also applicable to the embodiment of FIG. 10.

[0115] Referring to Fig. 10, the first air purification module (100) includes a first blower fan (140a) and a first filter (120) that removes foreign substances in the air flowing into the intake port. A first discharge port (110b) may be positioned at the lower side of the first filter (120).

[0116] Additionally, the second air purification module (200) includes a second blower fan (240a) and a second filter (220) that removes foreign substances in the air flowing into the intake port. A second discharge port (210b) may be positioned on the upper side of the second filter (220).

[0117] Between the first blower fan (140a) and the second blower fan (240a), a dual-axis motor (500) with shafts protruding in both the vertical and horizontal directions is placed. The dual-axis motor (500) can be accommodated in the motor fastening portion (125, 225). Since no discharge portion is formed in the center, multiple grills are not required on the peripheral surface of the motor fastening portion (125, 225).

[0118] When the dual-axis motor (500) operates, the first blower fan (140a) and the second blower fan (240a) connected to the dual-axis motor (500) rotate. Air flowing into the intake port (10a) on the side of the case (10) can pass through the filter (120, 220).

[0119] The first blower fan (140a) and the second blower fan (240a) can be arranged symmetrically with respect to the two-axis motor (500).

[0120] The first blower fan (140a) of Fig. 10 is arranged to face the opposite direction from the second blower fan (140) of Fig. 2, and can push air to flow downward. As the first blower fan (140a) rotates, air sucked through the suction port (10a) flows downward through the first filter (120) and is discharged through the first discharge port (110b). A grill (110a) that discharges the discharged airflow flowing downward laterally may be arranged in the first discharge port (110b). For example, the grill (110a) may be implemented in a shape similar to the grill (210) illustrated in Fig. 8.

[0121] The second blower fan (240a) of Fig. 10 is arranged to face the opposite direction from the second blower fan (240) of Fig. 2 and can push air upward. As the second blower fan (240a) rotates, the air sucked through the intake port (10a) flows upward through the second filter (220) and is discharged through the second discharge port (210b). A grill (210a) that discharges the discharged airflow flowing upward laterally may be arranged in the second discharge port (210b). For example, the grill (210a) may be implemented in a shape similar to the grill (110) illustrated in Fig. 6.

[0122] 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; A first filter disposed inside the case to remove foreign substances in the air flowing into the intake port; A first blower fan disposed on the upper side of the first filter; A first discharge port formed on the upper side of the first blower fan; A second filter disposed inside the case to remove foreign substances in the air flowing into the intake port; A second blower fan disposed on the lower side of the second filter; A second discharge port formed on the lower side of the second blower fan; and A dual-axis motor having a shaft protruding in both the vertical and vertical directions; The above two-axis motor, It is placed between the first blower fan and the second blower fan, An air purifier comprising a first shaft extending downward and connected to the first blower fan and a second shaft extending upward and connected to the second blower fan.

2. In paragraph 1, The above suction port is, A first suction port formed on the lower side of the first discharge port, An air purifier including a second intake port formed on the upper side of the second outlet port.

3. In paragraph 1, A first grille arranged in the first outlet and guiding air flowing upward from the first blower fan radially outward; and An air purifier further comprising a second grill disposed at the second outlet and guiding air flowing downward from the second blower fan radially outward.

4. In paragraph 3, The first axis is connected to the first blower fan through the central opening of the first grill, The second axis is an air purifier that penetrates the central opening of the second grill and is connected to the second blower fan.

5. In paragraph 3, The first and second grills are each an air purifier including a plurality of grills bent in an outward direction.

6. In paragraph 5, An air purifier in which the above plurality of grills have a concentric circle structure.

7. In paragraph 5, An air purifier in which the length of the plurality of grills is longer than the interval between the plurality of grills.

8. In paragraph 3, An air purifier in which the first and second grills each include a plurality of grills arranged at a predetermined angle.

9. In paragraph 3, Further comprising a motor fastening part for accommodating the above two-axis motor; An air purifier having a plurality of grills arranged on the circumference of the above motor fastening portion.

10. In paragraph 9, The above motor connection part is, A first motor fastening part disposed on the lower side and including a first grill part corresponding to the first discharge port, An air purifier comprising a second motor fastening part disposed on the upper side and including a second grill part corresponding to the second discharge port.

11. In paragraph 10, The above first grill is inserted and mounted into the above first motor fastening portion, The above second grill is an air purifier that is inserted and mounted into the second motor fastening part.

12. In paragraph 11, The above first grill is located on the lower side of the above first grill part, The above second grill is an air purifier located on the upper side of the second grill section.

13. In paragraph 10, An air purifier in which the shapes of the first and second discharge ports correspond to the shapes of the first and second grill parts.

14. In paragraph 1, The above case is, An air purifier comprising first and second cases, each having a semi-cylindrical shape, in which the suction port and the first and second discharge ports are formed.

15. In paragraph 1, A top cover placed on the upper side of the case; A control module disposed on the inside of the upper cover; An air purifier further comprising a display panel disposed on the upper side of the control module.

16. A case with suction holes formed on the periphery; A first filter disposed inside the case to remove foreign substances in the air flowing into the intake port; A first blower fan disposed on the upper side of the first filter; A first discharge port formed on the lower side of the first filter; A second filter disposed inside the case to remove foreign substances in the air flowing into the intake port; A second blower fan disposed on the lower side of the second filter; A second discharge port formed on the upper side of the second filter; and A dual-axis motor having a shaft protruding in both the vertical and vertical directions; The above two-axis motor, It is placed between the first blower fan and the second blower fan, An air purifier comprising a first shaft extending downward and connected to the first blower fan and a second shaft extending upward and connected to the second blower fan.

17. In paragraph 16, An air purifier further comprising a grill disposed at the first outlet and guiding air flowing downward from the first blower fan radially outward.

18. In paragraph 16, An air purifier further comprising a grill disposed at the second outlet and guiding air flowing upward from the second blower fan radially outward.

19. In paragraph 16, An air purifier further comprising a motor fastening part for accommodating the above-mentioned two-axis motor.

20. In paragraph 16, The above first blower fan and the above second blower fan, An air purifier arranged symmetrically based on the above two-axis motor.

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