Portable air caring apparatus

Abstract

An invention relating to a portable air purifier is disclosed. The portable air purifier of the present invention may comprise: a housing portion having an inlet portion for inhaling air, wherein a filter portion and a fan module portion are located inside and form an air passage in an up-and-down direction; a discharge portion located at the outlet of the housing portion and guiding the direction of air discharge; a rotational support portion connected to the housing portion and having its movement restricted, and which rotatably supports the discharge portion; and a rotational guide portion installed on the discharge portion and the rotational support portion, respectively, and which guides the rotation of the discharge portion so that the discharge portion rotates within a set angle.

Description

Technology Field

[0001] The present invention relates to a portable air purifier, and more specifically, to a portable air purifier in which a discharge part for discharging air upward is rotatably installed. Background Technology

[0002] An air purifier is a device widely used in modern life that purifies the air by filtering out physical particles such as dust, fine dust, and ultrafine dust, chemical substances such as odor particles and harmful gases, and microorganisms such as bacteria and viruses.

[0003] Air purifiers have established themselves as indispensable household appliances due to the influence of urbanization, industrialization, and globalization. Furthermore, demand is rapidly increasing due to factors such as rising levels of fine dust, an increase in allergy sufferers, and improved living standards.

[0004] When an air purifier is intended for environments exceeding 100 m², such as a typical household, the size of the device may be large. In such devices, a combination of filters can be used, including filters for physical particles such as dust, filters for chemical substances such as gases, and filters for microorganisms such as bacteria and viruses. In other words, in large spaces, a large-sized air purifier capable of accommodating various filters can be used.

[0005] However, using large air purifiers in confined spaces such as studio apartments or vehicle interiors is inefficient in terms of space utilization, mobility, and energy consumption. Additionally, for users who frequently move around, small, portable air purifiers are more suitable than large ones. Against this backdrop, portable air purifiers for personal use are being developed.

[0006] Portable air purifiers are provided in a small and lightweight form to facilitate portability. These portable air purifiers have the advantage of allowing users to easily carry them and use them wherever they want. In other words, portable air purifiers are suitable devices for users with a lifestyle pattern of frequently going out or moving between various locations, rather than staying in one place like their home for a long time.

[0007] In the prior art (Korean Patent Publication No. 2020-0037187), air is drawn in from the rear of a portable air purifier and discharged to the front.

[0008] However, portable air purifiers have a problem in that their external dimensions are set for ease of portability, so they cannot be equipped with a separate rotatable discharge unit to adjust the direction of air discharge. Therefore, there is a need to improve this.

[0009] The background technology of the present invention is disclosed in Korean Published Patent Application No. 2020-0037187 (published April 8, 2020, Title of Invention: Portable Air Purifier). The problem to be solved

[0010] The objective of the present invention is to provide a portable air purifier in which a discharge part guiding the discharge of air is rotatably installed.

[0011] In addition, the objective of the present invention is to provide a portable air purifier that can prevent damage to the wire connected to the discharge unit by rotating the discharge unit within a set angle.

[0012] The objects of the present invention are not limited to those mentioned above, and other unmentioned objects and advantages of the present invention may be understood from the following description and will be more clearly understood by the embodiments of the present invention. Furthermore, it will be readily apparent that the objects and advantages of the present invention can be realized by the means and combinations thereof set forth in the claims. means of solving the problem

[0013] The portable air purifier according to the present invention is characterized by the technical feature that a discharge part located on the upper side of the housing part is rotatably installed by a rotating support part.

[0014] Specifically, since the discharge part is rotatably installed on a ball joint provided in a rotating support part, the discharge part is installed to rotate around the ball joint, allowing the direction of air discharge to be easily adjusted.

[0015] In addition, the portable air purifier according to the present invention is characterized by the technical feature that the rotation angle of the discharge part is limited to within a set angle by the rotation guide part.

[0016] Specifically, since the guide projection protruding outward from the ball joint engages with the guide groove formed on the inner side of the discharge part, the rotation of the discharge part is kept within a set angle, thereby preventing breakage or damage to the wire connected to the discharge part.

[0017] A portable air purifier according to one embodiment of the present invention may include an inlet portion for inhaling air, a housing portion having a filter portion and a fan module portion located inside and forming an air passage in an up-and-down direction, a discharge portion located at the outlet of the housing portion and guiding the direction of air discharge, a rotational support portion connected to the housing portion and having its movement restricted and which rotatably supports the discharge portion, and a rotational guide portion installed on the discharge portion and the rotational support portion, respectively, and guiding the rotation of the discharge portion so that the discharge portion rotates within a set angle.

[0018] Additionally, the rotational support member may include a core member located at the lower side of the discharge member and extending from the center of the discharge port toward the discharge member, a core support member extending outwardly from the core member and fixed to the inner side of the housing member, with movement restricted together with the core member, and a ball joint having its lower side coupled to the core member to restrict movement and its upper side inserted into the inner side of the discharge member to rotatably support the discharge member.

[0019] Additionally, the core member has an outer surface that is curved, and the cross-sectional area can be gradually reduced in the direction toward the ball joint from the lower side connected to the core support.

[0020] In addition, the core member is installed in a conical shape, and the cross-sectional area can gradually decrease as it faces upward.

[0021] Additionally, the rotary guide portion may include a guide groove portion that is connected to or integrally formed with the ball joint and has a guide projection protruding outwardly from the ball joint and a concave groove on the inner side of the discharge portion facing the guide projection.

[0022] In addition, the guide projection is inserted into the inner side of the guide groove, and the guide projection catches on the inner side of the guide groove, thereby restricting rotation of the discharge portion beyond a set angle.

[0023] Additionally, the discharge portion may include a discharge body portion located at the outlet of the housing portion and guiding the direction of air discharge, a first support portion connected to or integrally formed with the discharge body portion and having a first curved groove in the shape of a concave groove, and a second support portion coupled to the first support portion and having a second curved groove connected to the first curved groove on its inner side.

[0024] In addition, the ball joint is located in the inner space formed by the first curved groove and the second curved groove, and can rotatably support the first support member and the second support member.

[0025] Additionally, the guide groove may be installed on at least one of the first support member and the second support member facing the ball joint.

[0026] In addition, the present invention may further include a position notification unit that engages with the discharge unit when the discharge unit is at a set position and provides a sense of operation.

[0027] Additionally, the position notification part may include a movable projection that is pressed by elastic force toward the outer side of the ball joint, a notification projection part in which the movable projection protrudes toward the outer side of the ball joint when the discharge part is at a set position, and a notification groove part in which the movable projection is inserted and caught on the inner side of the discharge part facing the notification projection part.

[0028] Additionally, the notification projection may include a first adjustment bolt fastened to the lower side of the mounting hole portion provided in the ball joint, and an inner elastic member whose lower side is supported by the first adjustment bolt and whose upper side supports the movable projection and presses the movable projection by means of elastic force.

[0029] In addition, the present invention may include a housing portion having an inlet portion for inhaling air, with a filter portion and a fan module portion located inside and forming an air passage in the vertical direction; a discharge body portion located at the outlet of the housing portion and guiding the direction of air discharge; a first support portion connected to or integrally formed with the discharge body portion and having a first curved groove in the shape of a concave groove; a second support portion coupled to the first support portion and having a second curved groove connected to the first curved groove on the inside; and a rotational support portion having one side connected to the housing portion and the other side installed at a position facing the first curved groove and the second curved groove to rotatably support the first support portion and the second support portion.

[0030] Additionally, the rotational support member may include a core member located below the second support member and extending in a direction toward the second support member from the center of the discharge port, a core support member extending outward from the core member and fixed to the inner side of the housing member, and having its movement restricted together with the core member, and a ball joint whose lower side is coupled to the core member and whose movement is restricted, and whose upper side is located inside the first curved groove and the second curved groove, and which rotatably supports the first support member and the second support member.

[0031] Additionally, the first support member may include a first support body fixed to the center of the discharge body part, having a first curved groove with a concave groove shape provided on the inner side, and a first wing member extending outwardly from the first support body and facing the second support member.

[0032] In addition, the first wing member and the second support member can be fixed by fastening with a fastening member.

[0033] In addition, the second support member may include a second support body installed in the circumferential direction, having a hollow portion connected in the vertical direction.

[0034] In addition, the second curved groove may be formed on the inner side of the second support body facing the hollow portion.

[0035] Additionally, the rotational support may include a spherical ball joint located inside the spherical groove formed by the first curved groove and the second curved groove.

[0036] In addition, the outer diameter of the ball joint is formed to be larger than the lower inner diameter of the second curved groove, thereby preventing the ball joint from detaching to the outside of the second support member.

[0037] In addition, the frictional force between the first support member and the ball joint, and the frictional force between the second support member and the ball joint, may be inversely proportional to the distance between the first support member and the second support member, which are installed facing each other with the ball joint in between. Effects of the invention

[0038] The portable air purifier according to the present invention can improve consumer satisfaction by easily adjusting the direction of air discharge, as the discharge part located on the upper side of the housing part is rotatably installed by a rotating support part.

[0039] In addition, according to the present invention, the rotation angle of the discharge unit is limited to within a set angle by the rotation guide unit, thereby preventing breakage or damage to the wire connected to the discharge unit, and thus reducing maintenance costs.

[0040] In addition, according to the present invention, since a movable projection protruding outwardly from the ball joint engages with a notification groove formed in the discharge portion, the user can easily recognize that the ball joint has reached an initial position, thereby improving ease of use.

[0041] In addition to the effects described above, the specific effects of the present invention are described together with the specific details for implementing the invention below. Brief explanation of the drawing

[0042] FIG. 1 is a perspective view of a portable air purifier according to one embodiment of the present invention. FIG. 2 is a cross-sectional view of a portable air purifier according to one embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating a state in which a discharge part according to one embodiment of the present invention is connected to a rotary guide part. FIG. 4 is an exploded perspective view of a discharge unit according to one embodiment of the present invention. FIG. 5 is an exploded perspective view of a rotating support member according to one embodiment of the present invention. FIG. 6 is an exploded cross-sectional view of a rotational support part with a discharge part according to one embodiment of the present invention. FIG. 7 is a cross-sectional view of a rotating support member according to one embodiment of the present invention. FIG. 8 is a perspective view illustrating a discharge part and a rotational support part according to one embodiment of the present invention. FIG. 9 is an exploded perspective view of a fan module part according to one embodiment of the present invention. FIG. 10 is a plan view of a fan module section according to one embodiment of the present invention. FIG. 11 is a bottom view of a fan module according to one embodiment of the present invention. FIG. 12 is a cross-sectional view of a fan module according to one embodiment of the present invention. FIG. 13 is a perspective view of a fan member according to one embodiment of the present invention. FIG. 14 is a plan view of a fan member according to one embodiment of the present invention. FIG. 15 is a bottom view of a fan member according to one embodiment of the present invention. FIG. 16 is a front view of a fan member according to one embodiment of the present invention. FIG. 17 is a cross-sectional view of a fan member according to one embodiment of the present invention. FIG. 18 is a perspective view illustrating a fan module according to another embodiment of the present invention. FIG. 19 is an exploded perspective view illustrating a fan module according to another embodiment of the present invention. FIG. 20 is a plan view illustrating a core support member according to one embodiment of the present invention. FIG. 21 is a drawing showing a state in which a ball joint according to one embodiment of the present invention is installed between a first support member and a second support member. Specific details for implementing the invention

[0043] The aforementioned objectives, features, and advantages are described in detail below with reference to the attached drawings, thereby enabling those skilled in the art to easily implement the technical concept of the present invention. In describing the present invention, detailed descriptions of known technologies related to the present invention are omitted if it is determined that such descriptions would unnecessarily obscure the essence of the invention. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

[0044] Although terms such as "first," "second," etc., are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merely to distinguish one component from another, and unless specifically stated otherwise, the first component may also be the second component.

[0045] In the following, the statement that any configuration is placed on the "upper (or lower)" of a component or on the "upper (or lower)" of a component may mean not only that any configuration is placed in contact with the upper (or lower) surface of said component, but also that another configuration may be interposed between said component and any configuration placed on (or below) said component.

[0046] In addition, where it is stated that one component is "connected," "combined," or "connected" to another component, it should be understood that while the components may be directly connected or connected to each other, another component may be "interposed" between each component, or each component may be "connected," "combined," or "connected" through another component.

[0047] Throughout the specification, unless specifically stated otherwise, each component may be singular or plural.

[0048] Singular expressions used in this specification include plural expressions unless the context clearly indicates otherwise. In this application, terms such as "composed of" or "comprising" should not be interpreted as necessarily including all of the various components or steps described in the specification, and should be interpreted as meaning that some of the components or steps may be omitted or additional components or steps may be included.

[0049] Throughout the specification, "A and / or B" means A, B, or A and B unless specifically stated otherwise, and "C to D" means C or more and D or less unless specifically stated otherwise.

[0050] [Appearance of the portable air purifier]

[0051] FIG. 1 is a perspective view of a portable air purifier (1) according to one embodiment of the present invention, and FIG. 2 is a cross-sectional view of a portable air purifier (1) according to one embodiment of the present invention.

[0052] As illustrated in FIGS. 1 and 2, a portable air purifier (1) according to an embodiment of the present invention may be formed in a roughly cylindrical shape. This portable air purifier (1) may include at least one of a housing part (10), a filter part (40), a fan module part (70), a discharge part (140), a sterilization part (200), a rotational support part (300), a rotational guide part (400), and a position notification part (500).

[0053] The housing portion (10) is equipped with an inlet portion (22), and a filter portion (40), a sterilization portion (200), and a fan module portion (70) may be located inside. Additionally, the housing portion (10) forms an air passage in the vertical direction. Since a cylindrical air passage is formed inside the housing portion (10), the frictional resistance of the air moving in the vertical direction can be reduced.

[0054] In addition, the centers of the inlet (22), filter (40), sterilization (200), fan module (70), outlet (24), and rotation support (300) can be aligned vertically along a vertical reference line penetrating the center of the housing (10). Accordingly, the airflow moving from the lower side to the upper side along the housing (10) moves in a straight line along the vertical direction, shortening the air's path of movement, and as a result, the air flow resistance is reduced, thereby improving air purification efficiency.

[0055] When the portable air purifier (1) is installed on a horizontal plane, the vertical reference line coincides with the vertical line. In addition, the housing part (10) may be made of a single member, but preferably may be made of multiple members.

[0056] The portable air purifier (1) can be formed in the shape of an upright cylinder with an overall length in the vertical direction. Accordingly, the user can use the portable air purifier (1) in an upright position or in a horizontal position. In addition, in places where shaking occurs, such as inside a vehicle, the portable air purifier (1) is used in a position where it is mounted in a concave groove facing downward, like a cup holder, so it can maintain its position stably.

[0057] Directions are defined. When the direction in which the discharge part (140) is located from the first case part (20) is called the upper direction and the direction in which the second case part (30) is located from the first case part (20) is called the lower direction, "first direction" means the up-and-down direction or the axial direction. Additionally, the first direction may be referred to as having the same meaning as the vertical direction. And "second direction" is a direction perpendicular to the first direction, meaning the left-right direction, the horizontal direction, or the radial direction.

[0058] [Overall structure of a portable air purifier]

[0059] The portable air purifier (1) of the present embodiment may include a housing part (10), a filter part (40), a fan module part (70), a discharge part (140), a rotational support part (300), and a rotational guide part (400). Additionally, the portable air purifier (1) may further include a location notification part (500), a sterilization part (200), and a battery (240).

[0060] The housing portion (10) includes a first case portion (20) and a second case portion (30). The first case portion (20) and the second case portion (30) form the external frame of the portable air purifier (1). The side and bottom exteriors of the portable air purifier (1) are formed by the first case portion (20) and the second case portion (30). A receiving space (21) is formed inside the first case portion (20) and the second case portion (30). Electrical components including a filter portion (40), a fan module portion (70), a sterilization portion (200), a rotational support portion (300), and a battery (240) are received in this receiving space (21). It is preferable that the first case portion (20) and the second case portion (30) be formed to have sufficient strength to protect the received components from external impact.

[0061] The filter section (40) is installed in the receiving space (21) of the first case section (20) and is positioned between the fan module section (70) and the inlet section (22). That is, the filter section (40) is positioned below the fan module section (70) and serves to purify the air sucked in through the inlet section (22) of the portable air purifier (1). The air purified while passing through the filter section (40) passes through the fan module section (70) and the discharge section (140) and is discharged to the top of the portable air purifier (1).

[0062] The filter section (40) is installed inside the first case section (20) and purifies the air flowing into the inside of the inlet section (22). Additionally, the filter section (40) may be formed in a cylindrical shape extending in the vertical direction.

[0063] The filter unit (40) may consist of a single filter, or, if necessary, may be installed with multiple filters stacked. Additionally, the filter unit (40) may be further provided with a separate filter case (not shown) for fixing the filter.

[0064] The filter case is fixed to the inside of the first case part (20), and an insertion space for accommodating a filter may be formed on the inside of the filter case.

[0065] The fan module (70) is housed in the receiving space (21) inside the first case section (20) and can be positioned between the discharge section (140) and the filter section (40). More specifically, the fan module (70) can be positioned between the discharge port (24) and the filter section (40). That is, the fan module (70) is located above the filter section (40), and the discharge port (24), the rotation support section (300), the rotation guide section (400), and the discharge section (140) are located above the fan module (70). This fan module (70) serves to suck in air that has flowed into the lower part of the filter section (40) through the inlet section (22) and discharge the air to the upper part of the first case section (20).

[0066] The center of rotation of the discharge section (140) can be aligned with the center of the fan module section (70) in the vertical direction. Air introduced through the inlet section (22) moves upward and passes through the filter section (40), the fan module section (70), and the discharge section (140) in sequence, and is discharged to the upper side of the portable air purifier (1).

[0067] In this embodiment, the fan module (70) is exemplified as comprising a centrifugal fan. This fan module (70) can draw in air that has passed through the filter unit (40) in the axial direction and discharge it in a direction between the axial direction and the radial direction.

[0068] The discharge unit (140) is rotatably installed on the upper side of the first case unit (20) and can guide the discharge direction of air moved upward through the discharge port (24). A rotational support unit (300) is provided on the upper side of the first case unit (20), and the discharge unit (140) is rotatably installed on the rotational support unit (300). Since both the upper and lower sides of the discharge unit (140) are open, air moved to the lower side of the discharge unit (140) through the discharge port (24) can be discharged to the outside of the portable air purifier (1) through the upper side of the discharge unit (140).

[0069] The sterilization unit (200) is located below the filter unit (40) and can be fixed to at least one of the first case unit (20) and the second case unit (30). The sterilization unit (200) is spaced apart from the filter unit (40) by a set distance and irradiates a sterilization light toward the filter unit (40). Since the sterilization light irradiated from the sterilization unit (200) is harmful to the human body, the installation position of the sterilization unit (200) is set so that the sterilization light does not leak out to the outside of the portable air purifier (1) through the inlet unit (22).

[0070] The battery (240) is installed in the receiving space (21) provided inside the second case part (30) and is positioned at the bottom of the sterilization part (200). The battery (240) can supply power for operating the portable air purifier (1).

[0071] [Component layout structure of a portable air purifier]

[0072] The receiving space (21) provided inside the portable air purifier (1) can be divided into a first area (A) and a second area (B). When the receiving space (21) is divided in the vertical direction, the upper area becomes the first area (A), and the lower area becomes the second area (B). It should be noted that the first area (A) and the second area (B) are not physically partitioned areas, but are only conceptually separated areas.

[0073] In one embodiment of the present invention, the receiving space (21) of the first case part (20) forming the frame of the portable air purifier (1) is set as the first area (A), and the receiving space (21) inside the second case part (30) is set as the second area (B).

[0074] In the first area (A), components related to the intake, purification, and discharge of air are arranged. That is, in the first area (A), an inlet section (22), a filter section (40), a fan module section (70), a rotating support section (300), and a discharge section (140) are arranged. Thus, in the first area (A), air flow occurs from the lower side toward the upper side, and the direction of air discharge is controlled through the rotatably installed discharge section (140).

[0075] In the first case section (20), an inlet section (22) is installed having a plurality of inlet holes (23) as a passage for air intake. On the upper part of the first case section (20), a discharge section (140) is installed to be rotatably installed on an outlet (24) and a rotating support section (300) as a passage for discharging air purified in the first area (A). Accordingly, an air passage connecting the filter section (40), the fan module section (70), and the discharge section (140) is formed on the inside of the first case section (20).

[0076] That is, in the first area (A), an inlet section (22), a filter section (40), a fan module section (70), a discharge section (140), a rotation support section (300), a rotation notification section, and an exhaust port (24) are provided. A path necessary for air sucked into the portable air purifier (1) to pass through the interior of the air purifier is formed in the first area (A).

[0077] In the second area (B), components that are not directly related to the airflow for air purification are arranged. That is, in the second area (B), a control unit including a PCB and a battery (240), etc., may be installed.

[0078] According to the present embodiment, the housing portion (10) is formed in a cylindrical shape such that the vertical length is longer than the lateral length. Additionally, the first area (A) positioned at the top is formed to have a longer vertical length than the second area (B) positioned at the bottom. That is, when the portable air purifier (1) is positioned vertically, the first area (A) at the top occupies a larger area than the second area (B) at the bottom.

[0079] Since the discharge unit (140) is rotatably installed on the rotating support unit (300), the direction of discharge of purified air from the upper part of the portable air purifier (1) can be easily adjusted. Therefore, it becomes easier for the air purified by the portable air purifier (1) to reach the user's face.

[0080] When using a portable air purifier (1) placed on a floor surface lower than the user's face, in order to increase the amount of air purified by the portable air purifier (1) reaching the user's face, it is advantageous to use the portable air purifier (1) in a vertical position rather than lying it horizontally.

[0081] To this end, when the portable air purifier (1) is positioned vertically, if air is discharged through the discharge part (140) rotated in a set direction at the top of the portable air purifier (1), the amount of air purified by the portable air purifier (1) reaching the user's face will be further increased.

[0082] [Detailed Composition of Portable Air Purifier Components]

[0083] A portable air purifier (1) according to one embodiment of the present invention may include at least one of a housing part (10), a filter part (40), a fan module part (70), a discharge part (140), a rotational support part (300), a rotational guide part (400), and a position notification part (500). Additionally, a portable air purifier (1) according to one embodiment of the present invention may further include a sterilization part (200) and a battery (240).

[0084] [Case 1]

[0085] The housing portion (10) includes a first case portion (20) and a second case portion (40). The first case portion (20) has a receiving space (21) formed inside, and may be provided with an inlet portion (22) for sucking in air on the lower side. The first case portion (20) is formed in a cylindrical shape and may be installed with an open shape at the top and bottom. The first case portion (20) may be made of a single part, or may be made of multiple members as needed. The first case portion (20) according to one embodiment of the present invention is made of multiple members, and each member may be joined by a snap-fit ​​method, joined by adhesive or welding, or connected to each other by a fastening member (195) such as a bolt, allowing for various modifications.

[0086] Meanwhile, air is drawn in through the lower side of the first case part (20) and discharged through the upper side of the first case part (20). To this end, an inlet part (22) having an inlet hole (23) is installed along the lower perimeter of the first case part (20). Additionally, an outlet (24) for discharging air may be provided on the upper side of the first case part (20).

[0087] In addition, with the air intake inlet (22) installed along the outer circumference of the first case part (20), the filter part (40) is installed on the upper side spaced apart from the inlet (22), so that air can be moved uniformly over the entire surface area of ​​the filter part (40).

[0088] Meanwhile, a plurality of inlet holes (23) are formed in the inlet section (22), and these inlet holes (23) can be installed at an angle in a diagonal shape, and if necessary, holes in the shape of an inequality sign with a bent center can be formed. In addition, various modifications are possible, such as additionally forming inlet holes (23) on the side of the housing section (10) where the filter section (40) is installed to increase the flow rate of air flowing into the filter section (40).

[0089] Meanwhile, the housing part (10) can be modified into various shapes, such as being composed of three or more members.

[0090] [Case 2]

[0091] Various modifications are possible within the technical concept in which the second case part (30) is connected to the lower part of the first case part (20), and a space is formed inside the second case part (30) for installing electrical components including a battery (240).

[0092] At least one of the first case part (20) and the second case part (30) may be formed as a cylindrical case. Both the first case part (20) and the second case part (30) may be cylindrical, or only the second case part (30) may be cylindrical. Alternatively, if necessary, only the first case part (20) may be cylindrical.

[0093] When the second case part (30) is formed in a cylindrical shape and extends in the vertical direction, it is easy for the user to grasp the outer circumference of the second case part (30) with their hand, and the operation of mounting the second case part (30) on a vehicle cup holder that generally has a circular cross-section can be easily performed.

[0094] And when the first case part (20) is formed in a cylindrical shape, the air passing through the inside of the first case part (20) and moving upward can reduce the friction generated when it comes into contact with the inside of the first case part (20) which has a curved shape, thereby allowing the airflow to be smoother.

[0095] Meanwhile, an air passage is formed on the inner side of the first case part (20), and since no air passage is formed on the inner side of the second case part (30), air intake and exhaust through the first case part (20) can be smoothly performed even when the second case part (30) is held in a cup holder or in the user's hand, thereby improving convenience of use.

[0096] [Filter Section]

[0097] The filter section (40) is installed inside the first case section (20), and various modifications can be implemented within the technical concept of purifying the air introduced into the inside of the inlet section (22). The filter section (40) according to one embodiment of the present invention may be formed in a cylindrical shape.

[0098] Since the first case part (20) has a circular pipe shape and the filter part (40) installed inside the first case part (20) also has a cylindrical shape that contacts the inside of the first case part (20), impurities in the air passing through the inside of the first case part (20) can be effectively removed.

[0099] In addition, the cross-section of the filter section (40) is formed in a circular shape, having the maximum surface area inside the first case section (20). Furthermore, the filter section (40) is manufactured in a cylindrical shape, so that when the upper and lower ends of the fabric constituting the filter section (40) are cut, pressure loss is minimized, thereby maximizing the performance of the filter section (40).

[0100] In addition, the outer diameter of the filter section (40) is manufactured to be greater than the suction diameter of the bell mouth (132) through which air is sucked into the fan module section (70), so the volume of the filter section (40) can be maximized.

[0101] In addition, according to the present embodiment, the arrangement of the filter section (40), the fan module section (70), and the discharge section (140) is formed in an up-and-down direction along the housing section (10), and the air flow can also be formed in the same up-and-down direction. That is, the air flow formed by the operation of the fan module section (70) can be formed in a straight direction identical to the arrangement direction of the filter section (40), the fan module section (70), and the discharge section (140).

[0102] When air flows in a straight direction like this, the resistance to air flow is lowered, allowing air flow to be smoother. As a result, a sufficient amount of air intake and a corresponding sufficient amount of air discharge can be achieved by the fan module (70), thereby improving the air purification performance of the portable air purifier (1).

[0103] [Fan Module Section]

[0104] The fan module (70) is located between the filter section (40) and the discharge port (24), and various modifications can be implemented within the technical concept of rotating the fan to blow air toward the discharge port (24).

[0105] FIG. 8 is a perspective view illustrating a discharge unit and a rotational support unit according to an embodiment of the present invention, FIG. 9 is an exploded perspective view of a fan module unit according to an embodiment of the present invention, FIG. 10 is a plan view of a fan module unit according to an embodiment of the present invention, FIG. 11 is a bottom view of a fan module unit according to an embodiment of the present invention, and FIG. 12 is a cross-sectional view of a fan module unit according to an embodiment of the present invention.

[0106] As illustrated in FIGS. 8 to 12, when a fan module (70), which is a circular centrifugal fan module, is applied, it matches or corresponds to the inner shape of the first case (20), which is cylindrical. Therefore, the shape of the first case (20) does not need to be enlarged due to the fixing or fastening of the fan module (70), thus enabling the miniaturization of the product. In addition, when the portable air purifier (1) according to the present invention is used in a vehicle, the size of the portable air purifier (1) can be implemented within a cup holder.

[0107] In addition, since a circular axial fan module is applied to the fan module section (70), a small air purifier with an upper discharge type that can maximize fluidity performance can be provided. The fan type of the fan module section (70) is a axial fan, and the internal structure of the fan module section (70) is modified to accommodate the axial fan.

[0108] The fan member (90) according to the present invention is rotated by the operation of a motor. Only the rotation shaft of the motor that rotates the fan member (90) may be connected to the fan member (90), a rotor may be installed on the fan member (90), and a stator may be installed on the fan housing (80) in which rotation is restricted. Since the magnetic field of the stator changes, a shaft that rotates together with the rotor is connected to the fan member (90), so that the rotor and the fan member (90) can rotate around the stator. Since the configuration of the motor that rotates the fan member (90) is a known configuration, a detailed description thereof is omitted.

[0109] A fan module (70) according to one embodiment of the present invention may include a fan housing (80), a fan member (90), and a fan base (130).

[0110] [Fan Housing]

[0111] The fan housing (80) is fixed to the inside of the first case part (20), and various modifications are possible within the technical concept of providing a space for the fan member (90) to rotate inside. The fan housing (80) according to one embodiment of the present invention may include at least one of a support plate (81), a connecting support (82), a wire guide (83), a side support part (84), an inner guide part (85), and a protruding boss (86).

[0112] The support plate (81) is formed in the shape of a disc, and a hole is provided in the center of the support plate (81). A motor may be installed in the center of the support plate (81), or a shaft connected to the motor may be installed in the first direction. This support plate (81) is located on the lower side of the core member (310).

[0113] The connecting support member (82) extends outward from the support plate (81) and is connected to the side support member (84). According to one embodiment of the present invention, the connecting support member (82) is provided in multiple numbers and can be installed in a rod shape. The connecting support member (82) extending radially outward from the support plate (81) can be connected to the side support member (84).

[0114] According to one embodiment of the present invention, the connecting support member (82) is located below the core support member (350) of the rotational support member (300). Four connecting support members (82) are installed at 90-degree intervals centered on the support plate (81), and the core support member (350) is installed on the upper side facing the connecting support member (82).

[0115] The wire guide (83) is installed in succession to the connecting support (82) and supports the lower part of the wire (600) so that the wire of the electronic device (600) can move along the side of the connecting support (82). The wire guide (83) is a protruding shape located on the lower side of the connecting support (82) and guides the wire (600) of the motor installed on the support plate (81) to be extended to the outside of the fan housing (80). The wire guide (83) can be installed on the side of the connecting support (82) to form a concave groove for the wire (600) to be placed. Accordingly, the wire (600) installed on the wire guide (83) is placed in the concave groove located on the side of the connecting support (82), and since the lower part is supported by the wire guide (83), damage to the wire (600) can be prevented.

[0116] The side support member (84) is in the shape of a cylindrical pipe and has an open shape at the top and bottom. The outer side of the side support member (84) contacts the inner side of the housing member (10), and the inner side of the side support member (84) is connected to the connecting support member (82).

[0117] The inner guide (85) forms an inclined surface that is installed downwardly inclined toward the radial inner side from the lower side of the side support (84). The inner guide (85) is formed on the inner side of the side support (84) and can prevent the circulating phenomenon in which air blown upward by the fan member (90) moves to the inlet of the fan member (90) through the outer surface of the fan member (90).

[0118] The protruding boss (86) extends to the lower end of the side support member (84) and can be implemented in various variations within the technical concept of having a groove into which the connecting projection (134) of the fan base (130), which will be described later, is inserted. According to one embodiment of the present invention, the protruding boss (86) is installed in multiple numbers along the circumferential direction of the side support member (84).

[0119] [Fan Absence]

[0120] The fan member (90) is rotatably installed inside the fan housing (80), and various modifications can be implemented within the technical concept of being able to move air toward the discharge part (140).

[0121] A centrifugal fan may be used as the fan member (90), but this is only one embodiment of the present invention, and other types of fans may also be used as the fan member (90) according to the present invention. The fan member (90) according to one embodiment of the present invention may include at least one of a hub (100), a fan blade (110), and a shroud (120).

[0122] FIG. 13 is a perspective view of a fan member according to an embodiment of the present invention, FIG. 14 is a plan view of a fan member according to an embodiment of the present invention, FIG. 15 is a bottom view of a fan member according to an embodiment of the present invention, FIG. 16 is a front view of a fan member according to an embodiment of the present invention, and FIG. 17 is a cross-sectional view of a fan member according to an embodiment of the present invention.

[0123] As illustrated in FIGS. 13 to 17, the hub (100) is located at the center of the fan housing (80), and various modifications can be implemented within the technical concept of receiving external power and rotating.

[0124] The hub (100) is positioned at the radial center of the fan member (90) and can rotate together with the rotor constituting the motor and the shaft which is the output shaft of the motor. The hub (100) according to one embodiment of the present invention may include at least one of a hub plate portion (101), a shaft coupling portion (102), an inner protrusion portion (105), and a skirt portion (107).

[0125] The hub plate (101) may be formed in a circular shape parallel to the support plate (81). An axial coupling portion (102) may be provided in the hub plate (101). The axial coupling portion (102) may be positioned at the radial center of the hub plate (101). This axial coupling portion (102) may be formed to protrude upward and downward from the hub plate (101).

[0126] The shaft coupling portion (102) can be coupled to the axial end of a shaft that transmits rotational power. For example, the coupling between the shaft coupling portion (102) and the shaft can be formed by fitting the shaft into the shaft coupling portion (102).

[0127] First reinforcing protrusions (103) are installed at set intervals along the outer circumference of the shaft coupling part (102). The first reinforcing protrusions (103) are installed radially around the shaft coupling part (102) and form a band-shaped protrusion on the outer side of the shaft coupling part (102). Therefore, the stress concentrated on the shaft coupling part (102) is distributed through the first reinforcing protrusions (103), thereby reinforcing the structural rigidity of the shaft coupling part (102).

[0128] The inner protrusion (105) may protrude from the hub plate portion (101) toward the upper portion where the support plate (81) is installed. In one embodiment of the present invention, the inner protrusion (105) is installed in an arc direction along the outer edge of the hub plate portion (101). The inner protrusion (105) is in the shape of a pipe extending in the vertical direction.

[0129] Then, a second reinforcing projection (106) is installed at set intervals along the inner circumference of the inner protrusion (105). The second reinforcing projection (106) is installed in a first direction along the inner surface of the inner protrusion (105), and the lower side of the second reinforcing projection (106) forms a band-shaped projection extending toward the shaft coupling part (102). Therefore, the stress concentrated on the inner protrusion (105) is distributed through the second reinforcing projection (106), thereby reinforcing the structural rigidity of the inner protrusion (105). If necessary, the rotor of the motor part can be fixed to the inner side of the inner protrusion (105).

[0130] The skirt portion (107) may protrude upward toward the support plate (81) from the edge of the hub plate portion (101). The skirt portion (107) may form an inclined surface that slopes outward in the second direction as it moves away from the hub plate portion (101) along the first direction. The skirt portion (107) is located on the outer side of the inner protrusion (105), and the inner diameter of the skirt portion (107) gradually increases as it moves from the lower side to the upper side.

[0131] For example, the shape in which the hub plate (101) and the skirt portion (107) are connected may be a truncated cone shape with a hollow formed inside and one side open. The skirt portion (107) may be a funnel shape with the upper side open and the lower side blocked by the hub plate (101).

[0132] The shroud (120) is connected to the end of the fan blade (110) and installed in an annular shape, and various modifications can be implemented within the technical concept of being spaced apart from the fan base (130).

[0133] The shroud (120) is installed along the outer circumference of the skirt portion (107), and the shroud (120) and the skirt portion (107) are connected by a fan blade (110). Additionally, the outer diameter of the hub (100) and the inner diameter of the shroud (120) can gradually decrease from the upper side to the lower side.

[0134] The shroud (120) may be spaced apart from the hub (100) at a predetermined distance in the radial direction and may be positioned on the radial outer side of the hub (100). Additionally, the shroud (120) may be spaced apart from the hub (100) by a distance corresponding to the radial length of the fan blade (110). Each fan blade (110) may connect the skirt portion (107) provided on the hub (100) with the shroud (120).

[0135] The shroud (120) can form an inclined surface approximately parallel to the skirt portion (107). In this embodiment, the arrangement of the skirt portion (107) and the shroud (120) is exemplified such that the gap between the skirt portion (107) and the shroud (120) widens as it extends upward toward the shroud (120).

[0136] The inlet projection (121) provided on the lower side of the shroud (120) is a ring-shaped projection and extends in a first direction from the lower side of the funnel-shaped shroud (120). Since the inlet projection (121) is located on the inner side of the bell mouth (132) to be described later, it is possible to prevent the airflow of air flowing into the inlet provided on the lower side of the shroud (120) along the outer side of the shroud (120).

[0137] Fan blades (110) are provided in multiple numbers and can be spaced apart at equal intervals along the outer surface of the hub (100). The fan blades (110) protrude outward from the hub (100) with the hub (100) as the center, and these fan blades (110) extend in a spiral shape. Additionally, multiple fan blades (110) can be spaced apart at predetermined intervals along the circumferential direction of the hub (100).

[0138] A fan blade (110) according to one embodiment of the present invention may protrude outward from the skirt portion (107) along a centrifugal direction extending spirally from the center of the shaft coupling portion (102). Additionally, when the direction from the outside of the shaft coupling portion (102) toward the shaft coupling portion (102) is defined as the radial direction, the radially inner side of the fan blade (110) may be connected to the skirt portion (107), and the radially outer side of the fan blade (110) may be connected to a shroud (120) to be described later.

[0139] The skirt portion (107) is a part of the hub (100) that is directly connected to the fan blade (110) and is in direct contact with the air passing through the fan blade (110). This skirt portion (107) can also be deeply related to the air flow path passing through the fan module portion (70).

[0140] Each fan blade (110) connecting the shroud (120) and the skirt portion (107) may include a first end portion (111), a second end portion (112), a first edge (113), and a second edge (114).

[0141] The first end (111) is positioned at the leading end of the fan blade (110) in the rotational direction and can be formed in a straight line extending radially. The rotational direction is defined as the direction in which the fan member (90) rotates.

[0142] The second end (112) is positioned at the rear end of the fan blade (110) in the rotational direction and can be formed radially around the shaft coupling part (102).

[0143] The first edge (113) can connect one end of the first end (111) and one end of the second end (112). This first edge (113) can be connected to the inner surface of the shroud (120).

[0144] The second edge (114) can connect the other end of the first end (111) and the other end of the second end (112). This second edge (114) can be connected to the outer surface of the hub (100).

[0145] That is, one end of the first end (111) and one end of the second end (112) can be connected to the inner surface of the shroud (120). And the other end of the first end (111) and the other end of the second end (112) can be connected to the outer surface of the skirt portion (107).

[0146] One end of the first end (111) may be positioned closer to the radial center of the hub plate (101) than one end of the second end (112). And the other end of the second end (112) may be positioned closer to the radial center of the hub plate (101) than the other end of the first end (111). This is because the first and other ends of the first end (111) are positioned further forward in the rotational direction than the first and other ends of the second end (112), and the skirt portion (107) is formed in a shape in which its radius narrows as it moves forward in the rotational direction.

[0147] According to the present embodiment, the fan blade (110) is connected to the skirt portion (107) of the hub (100). In order to guide the flow of air entering the fan module portion (70) in an upwardly inclined direction, the skirt portion (107) forms an inclined surface in an upwardly inclined direction.

[0148] [Fanbase]

[0149] As illustrated in FIG. 9, the fan base (130) is coupled to the lower side of the fan housing (80), and various modifications can be implemented within the technical concept of guiding air passing through the filter section (40) to flow into the fan member (90).

[0150] The fan base (130) can be positioned between the filter section (40) and the fan member (90). Additionally, the rim shape of the fan base (130) can be formed to correspond to the rim shape of the filter section (40). For example, when the filter section (40) is cylindrical and the rim shape of the filter section (40) is circular, the fan base (130) can be installed in an annular shape having a hollow.

[0151] A base plate (131) can be positioned between the filter section (40) and the fan member (90). This base plate (131) is in the shape of a plate extending in an annular manner and has a hollow in the center for air movement.

[0152] The bellmouth (132) is installed annularly on the inner side of the base plate (131) facing the hollow. The bellmouth (132) has a concave cross-section that wraps around the lower side of the entrance projection (121) of the shroud (120) and extends along the circumferential direction.

[0153] The bell mouth (132) can be formed in a shape that surrounds the outer surface of the hollow formed in the center of the base plate (131). The bell mouth (132) can be formed convexly toward the lower side and can form a concave groove toward the upper side.

[0154] The bell mouth (132) can be inserted radially inward of at least a portion of the shroud (120). This bell mouth (132) can contribute to improving the suction and discharge performance of the fan module (70) by guiding the suction flow at the inlet of the fan module (70).

[0155] The connecting projection (134) protrudes upward from the base plate (131) and is fitted into the groove of the protruding boss (86) provided in the fan housing (80) to fix the fan base (130) to the lower side of the fan housing (80).

[0156] By means of a connection formed between the connecting projection (134) and the protruding boss (86), a connection between the fan base (130) and the fan housing (80) can be formed at multiple points. When a connection between the fan base (130) and the fan housing (80) is formed in this way, a fan member (90) can be rotatably installed between the fan base (130) and the fan housing (80).

[0157] The protruding rib (133) protrudes from the base plate (131) and may be positioned on the radially outer side of the bellmouth (132). In one embodiment of the present invention, the protruding rib (133) is located on the radially outer side of the bellmouth (132) and is installed in an annular shape that surrounds the outer circumference of the bellmouth (132). Additionally, the protruding rib (133) may be formed integrally with the base plate (131). More specifically, the base plate (131), the bellmouth (132), and the protruding rib (133) may be formed integrally.

[0158] Additionally, the protruding rib (133) may be installed at an angle equal to the outer surface of the shroud (120), and the distance between the protruding rib (133) and the shroud (120) may be maintained constant. The protruding rib (133) may protrude in a shape that forms an inclined surface. The inclined surface of the protruding rib (133) may be formed as an inclined surface parallel to the inclined surface of the shroud (120), spaced apart from the shroud (120) by a set distance.

[0159] Additionally, the inclined surface of the protruding rib (133) may have the same angle of inclination as the inclined surface of the inner guide (85) provided in the fan housing (80). Thus, the phenomenon of airflow being prevented can be avoided in which some of the air moved upward through the space between the shroud (120) and the skirt portion (107) moves to the inlet of the fan member (90) through the space between the shroud (120) and the protruding rib (133).

[0160] [Another example of the fan module]

[0161] FIG. 18 is a perspective view illustrating a fan module part (370) according to another embodiment of the present invention, and FIG. 19 is an exploded perspective view of a fan module part (370) according to another embodiment of the present invention.

[0162] As illustrated in FIGS. 18 and 19, the outer shape of the fan module (370) may be square. Additionally, since a circular centrifugal fan module is applied to the inner side of the fan module (370), a small air purifier with an upper discharge type that can maximize fluidity performance can be provided. A fan module (370) according to another embodiment of the present invention may include a fan housing (380), a fan member (90), and a fan base (430).

[0163] [Fan Housing]

[0164] The external shape of the fan housing (380) can be implemented in various variations within the technical concept of including a border on a rectangular shape. A fan housing (380) according to one embodiment of the present invention may include at least one of a support plate (381), a connecting support (382), a wire guide (383), a side support (384), an inner guide (385), and a protruding boss (386).

[0165] The support plate (381) is formed in the shape of a disc, and a hole is provided in the center of the support plate (381). A motor may be installed in the center of the support plate (381), or a shaft connected to the motor may be installed in the first direction.

[0166] The connecting support member (382) extends outward from the support plate (381) and is connected to the side support member (384). According to one embodiment of the present invention, the connecting support member (382) is provided in a plurality and can be installed in a rod shape. The connecting support member (382) extending radially outward from the support plate (381) can be connected to the side support member (384).

[0167] The wire guide (383) is installed in succession to the connecting support (382) and supports the lower part of the wire (600) so that the wire of the electronic device (600) can move along the side of the connecting support (382). The wire guide (383) is a protruding shape located on the lower side of the connecting support (382) and guides the wire (600) of the motor installed on the support plate (381) to be extended to the outside of the fan housing (380). The wire guide (383) can be installed on the side of the connecting support (382) to form a concave groove for the wire (600) to be placed. Accordingly, the wire (600) installed on the wire guide (383) is placed in the concave groove located on the side of the connecting support (382), and since the lower part is supported by the wire guide (383), damage to the wire (600) can be prevented.

[0168] The side support member (384) has a square frame shape and is open at the top and bottom. The outer side of the side support member (384) has a square frame shape, and the inner side of the side support member (384) forms a passage for air to move through and forms a square or circular inner space.

[0169] The inner guide (385) forms an inclined surface that is installed downwardly inclined toward the radial inner side from the lower side of the side support (384). The inner guide (385) is formed on the inner side of the side support (384) and can prevent the circulating phenomenon in which air blown upward by the fan member (90) moves to the inlet of the fan member (90) through the outer surface of the fan member (90).

[0170] The protruding boss (386) extends to the bottom of the side support member (384) and can be implemented in various variations within the technical concept of having a groove for inserting the connecting projection (134) of the fan base (430) to be described later. According to one embodiment of the present invention, the protruding boss (386) is installed at each corner of the side support member (384).

[0171] The fan member (90) uses a cylindrical fan, and since the explanation for this has been described above, a detailed explanation is omitted.

[0172] [Fanbase]

[0173] A rectangular fan base (430) is coupled to the lower side of a rectangular fan housing (380), and various modifications can be implemented within the technical concept of guiding air passing through the filter section (40) to flow into the fan member (90).

[0174] The rim shape of the fan base (430) can be formed to correspond to the rim shape of the fan housing (380). For example, if the fan housing (380) is square in shape, the fan base (430) can be installed in the shape of a square plate with a hollow.

[0175] The base plate (431) is in the shape of a square plate and has a hollow in the center for air movement.

[0176] The bellmouth (432) is installed in an annular shape on the inner side of the base plate (431) facing the hollow. The bellmouth (432) has a concave cross-section that surrounds the lower side of the entrance projection (121) provided on the shroud (120) and extends along the circumferential direction. The bellmouth (432) can be formed in a shape that surrounds the outer surface of the hollow formed in the center of the base plate (431). The bellmouth (432) is formed convexly toward the lower side and can form a concave groove toward the upper side.

[0177] The connecting projection (434) protrudes upward from the base plate (431) and is fitted into the groove of the protruding boss (386) provided in the fan housing (380) to fix the fan base (430) to the lower side of the fan housing (380). Through the connection made between the connecting projection (434) and the protruding boss (386), the fan base (430) and the fan housing (380) can be connected at multiple points. When the fan base (430) and the fan housing (380) are connected in this way, the fan member (90) can be rotatably installed between the fan base (430) and the fan housing (380).

[0178] [Discharge section]

[0179] FIG. 3 is a cross-sectional view showing the discharge unit (140) according to one embodiment of the present invention connected to the rotation guide unit (400), FIG. 4 is an exploded perspective view of the discharge unit (140) according to one embodiment of the present invention, FIG. 5 is an exploded perspective view of the rotation support unit (300) according to one embodiment of the present invention, and FIG. 6 is an exploded cross-sectional view of the discharge unit (140) according to one embodiment of the present invention and the rotation support unit (300).

[0180] As illustrated in FIGS. 3 to 6, the discharge unit (140) is located at the outlet (24) of the housing unit (10) and is rotatably installed on the rotating support unit (300), and various modifications can be implemented within the technical concept of guiding the discharge direction of air passing through the fan module unit (70). Since the discharge unit (140) according to the present invention is rotatably installed on a spherical ball joint (360) provided on the rotating support unit (300), the rotational operation can be performed smoothly.

[0181] The discharge unit (140) installed on the upper side of the housing unit (10) is open in the vertical direction and is rotatably connected to the rotational support unit (300), so that the discharge direction of the air passing through the fan module unit (70) can be controlled. The discharge unit (140) according to one embodiment of the present invention may include a discharge body unit (141), a first support unit (180), and a second support unit (190).

[0182] [Discharge body]

[0183] The discharge body portion (141) is located at the outlet (24) of the housing portion (10) and guides the direction of air discharge. The discharge body portion (141) according to one embodiment of the present invention may include a first discharge portion (150), a second discharge portion (160), and a core mounting portion (170).

[0184] [1st Discharge Section]

[0185] The first discharge unit (150) is located on one side (upper side based on FIG. 3) of the ball joint (360), and various modifications can be implemented within the technical concept in which a plurality of vanes (156) that guide the discharge of air are provided. The first discharge unit (150) according to one embodiment of the present invention may include a first discharge core (152), a first discharge body (154), and vanes (156).

[0186] The first discharge core (152) is located on the upper side of the ball joint (360) and can be formed in various shapes, including a disc shape. The first discharge body (154) is spaced apart from the first discharge core (152) and can be installed in an annular shape that surrounds the outer side of the first discharge core (152). Additionally, the outer side of the first discharge body (154) is formed in a curved shape and is installed spaced apart from the housing part (10), so that contact with the housing part (10) can be prevented when the first discharge part (150) rotates.

[0187] And since the first discharge core (152) and the first discharge body (154) are connected by a plurality of vanes (156), the first discharge core (152), the first discharge body (154), and the vanes (156) can rotate together.

[0188] [2nd Discharge Section]

[0189] The second discharge unit (160) is located on the other side (lower side based on FIG. 3) of the ball joint (360) and is connected to the first discharge unit (150). Various modifications are possible within the technical concept of rotating around the ball joint (360) together with the first discharge unit (150). The second discharge unit (160) according to one embodiment of the present invention may include a second discharge core (161), a second discharge body (162), and a discharge core support unit (163).

[0190] The second discharge core (161) is coupled to the first discharge core (152) with the core mounting portion (170) in between. The second discharge core (161) forms a concave groove facing downward, and a first support portion (180) and a second support portion (190) that surround the ball joint (360) are located on the inner side of the second discharge core (161).

[0191] The second discharge body (162) is spaced apart from the second discharge core (161) and is installed in an annular shape that surrounds the outer side of the second discharge core (161). The outer side of the second discharge body (162) is formed in a curved shape and is installed spaced apart from the housing part (10), so that it can prevent contact with the housing part (10) when the second discharge part (160) rotates.

[0192] And since the second discharge core (161) and the second discharge body (162) are connected by a plurality of discharge core support members (163), the second discharge core (161), the second discharge body (162), and the discharge core support members (163) can rotate together.

[0193] [Core Mounting Section]

[0194] A core mounting unit (170) may be installed between the first discharge unit (150) and the second discharge unit (160) to receive an operation signal through the first discharge unit (150) or to display the operating status of the portable air purifier (1) through the first discharge unit (150). A core mounting unit (170) according to one embodiment of the present invention includes a touch panel (171) installed below the first discharge core (152) and receiving a user operation signal through the first discharge core (152), a display (172) including a PCB located below the touch panel (171) that provides image information in a direction toward the first discharge core (152) and receives an operation signal from the touch panel (171), and a fixing case (173) that surrounds the touch panel (171) and the display (172) and is fixed to the first discharge unit (150).

[0195] [1st Branch]

[0196] The first support member (180) is connected to the discharge body member (141) or formed integrally with the discharge body member (141), and various modifications are possible within the technical concept of having a first curved groove (182) in the shape of a concave groove. The first curved groove (182) is installed in a shape that surrounds the upper side of a ball joint (360) formed in a spherical shape. The first support member (180) according to one embodiment of the present invention may include a first support body (181) and a first wing member (183).

[0197] The first support body (181) is provided with a first curved groove (182) having a concave groove shape on its inner side and is fixed to the center of the discharge body part (141). The first support body (181) according to one embodiment of the present invention is coupled to the lower side of the second discharge part (160). It is inserted into the lower side of the second discharge core (161) provided in the second discharge part (160) and is fixed to the inner side of the second discharge core (161).

[0198] The first wing member (183) may include a first wing member (183) that extends outwardly from the first support body (181) and faces the second support member (190). The first wing member (183) and the second support member (190) are fixed by fastening with a fastening member (195), and the first wing member (183) and the second support member (190) may be joined with a gap between them.

[0199] The first wing member (183) may be formed in a plate shape extending along an arc shape, and the first support body (181) may be in a cylindrical shape protruding upward from the central part of the first wing member (183), and the first curved groove (182) may be formed on the inner side of the first support body (181), and the lower side may be installed in an open shape.

[0200] [2nd Branch]

[0201] The second support member (190) is coupled to the first support member (180), and a second curved groove (192) connected to the first curved groove (182) is provided on the inside. The second curved groove (192) can be installed in a shape that wraps around the spherical side and a portion of the lower side of the ball joint (360).

[0202] A second support member (190) according to one embodiment of the present invention may include a second support body (191) installed in a circumferential direction and having a hollow portion (193) connected in the vertical direction. A second curved groove (192) may be formed on the inner side of the second support body (191) facing the hollow portion (193).

[0203] The upper side of the discharge section (140) is positioned in a horizontal direction, and the position where the air passing through the discharge section (140) moves upward is set as the initial position of the discharge section (140). When the discharge section (140) is in the initial position, the lower inner diameter of the second curved groove (192) is smaller than the maximum outer diameter of the ball joint (360). At that time, the second support section (190) is fixed to the first support section (180) by being coupled to the lower side of the ball joint (360), and the second support section (190) supports the ball joint (360) in a shape that surrounds it, so that the phenomenon of the ball joint (360) moving outward from the second support section (190) can be prevented.

[0204] FIG. 21 is a drawing showing a state in which a ball joint (360) according to one embodiment of the present invention is installed between a first support member (180) and a second support member (190).

[0205] As shown in FIG. 21, the frictional force between the first support member (180) and the ball joint (360) is denoted as F1, and the frictional force between the second support member (190) and the ball joint (360) is denoted as F2. When the distance between the first support member (180) and the second support member (190) is denoted as D, F1 and F2 are inversely proportional to D.

[0206] That is, the frictional force between the first support member (180) and the ball joint (360), and the frictional force between the second support member (190) and the ball joint (360), may be inversely proportional to the distance between the first support member (180) and the second support member (190), which are installed facing each other with the ball joint (360) in between. If D is large, F1 and F2 become small, and if D is small, F1 and F2 become large.

[0207] Therefore, the discharge unit (140) must maintain the rotated state after rotating around the ball joint (360). If the discharge unit (140) fails to maintain the rotated state, the fastening state of the fastening member (195) is adjusted so that D becomes smaller, causing F1 and F2 to become larger. And, if F1 and F2 become larger and the rotation of the discharge unit (140) is not smooth, the fastening member (195) is adjusted so that D becomes larger, thereby reducing F1 and F2.

[0208] When manually adjusting the rotation direction of the discharge unit (140), the discharge unit (140) can be easily rotated, and the discharge unit (140) can be prevented from shaking after rotation is complete, thereby improving the operational reliability of the discharge unit (140).

[0209] As illustrated in FIG. 6, the first support member (180) is provided with a first curved groove (182) that forms a concave groove shape facing downward, and the second support member (190) is provided with a second curved groove (192) that forms a concave groove shape along the inner circumference of the second support body (191) facing the hollow part (193). When the discharge part (140) is in the initial position, the upper side of the ball joint (360) is inserted into the first curved groove (182), and the second curved groove (192) is installed in a shape that wraps around the side and a portion of the lower part of the ball joint (360). Accordingly, the first support member (180) and the second support member (190) rotate around the ball joint (360).

[0210] And, the second support member (190) is fixed to the first support member (180) by the fastening member (195), and the first support member (180) is fixed to the discharge body member (141). Thus, the discharge body member (141), the first support member (180), and the second support member (190) form a single module, and rotation can be performed around the ball joint (360).

[0211] [Sterilization Section]

[0212] As illustrated in FIG. 2, the sterilization unit (200) is located between the filter unit (40) and the second case unit (30), and various modifications are possible within the technical concept of irradiating a sterilization light toward the filter unit (40). The sterilization unit (200) according to one embodiment of the present invention may include at least one of a sterilization support unit (210), a base unit (220), and an irradiation unit (230).

[0213] [Sterilization Support]

[0214] The sterilization support member (210) is located between the first case part (20) and the second case part (30) and shields the lower part of the first case part (20). Additionally, the sterilization support member (210) is located below the irradiation part (230) and is connected to the housing part (10), allowing for various modifications within the technical concept where movement is restricted.

[0215] Air introduced into the interior of the first case section (20) through the inlet section (22) is blocked from moving to the second case section (30) by the sterilization support section (210), thereby increasing the air flow rate to the fan module section (70) and improving the air purification performance of the portable air purifier (1).

[0216] The support member (220) can be modified in various ways within the technical concept of protruding upward from the center of the sterilization support member (210) to support the lower part of the irradiation member (230). Additionally, the support member (220) is located at the radial center of the inlet member (22), and the cross-section of the support member (220) is circular to reduce friction with the air.

[0217] The support portion (220) may be in the shape of a column protruding upward from the center of the sterilization support portion (210). Additionally, the support portion (220) may be in the shape of a cylinder or a cone. In one embodiment of the present invention, the support portion (220) has a shape in which the cross-section gradually narrows from the lower side toward the upper side, and since it is located in the center of the first case portion (20) in which the inlet portion (22) is formed, friction with the air can be minimized.

[0218] The cross-section of the sterilization support member (210) installed to sterilize the filter member (40) is circular, and the air introduced through the inlet member (22) rotates spirally due to the inclined shape of the inlet hole (23), rotates around the outer side of the support member (220), and moves toward the upper side where the filter member (40) is installed. That is, the sterilization member (200) is located in the center of the first case member (20), and since the air introduced through the inlet member (22) rotates around the outer circumference of the sterilization member (200) and moves toward the upper side, the flow resistance of the sterilization member (200) is reduced.

[0219] Since the rotation center of the base (220) and the fan member (90) and the core member (310) of the rotation support member (300) described later are located in a straight line in the vertical direction, the resistance to the air flow moving from the lower side to the upper side is lowered, allowing the air flow to be more smooth, thereby improving the air purification performance of the portable air purifier (1).

[0220] The irradiation unit (230) is mounted on the upper side of the support unit (220) and can irradiate a sterilizing light beam in a direction toward the filter unit (40). Additionally, the irradiation unit (230) can be positioned on a vertical reference line that penetrates the radial center of the inlet unit (22) in an up-and-down direction. Therefore, when the filter unit (40) is positioned above the irradiation unit (230), the entire lower surface area of ​​the filter unit (40) can be sterilized by a relatively small number of sterilizing light sources (232), thereby reducing production costs and maintenance costs.

[0221] In addition, the irradiation unit (230) can be implemented in various variations within the technical concept of being installed at a position higher than or equal to the top of the inlet unit (22). The irradiation unit (230) according to one embodiment of the present invention may include a printed circuit board (231) and a sterilization light source (232). A printed circuit board (231) is installed on the upper side of the support unit (220), and a sterilization light source (232) that irradiates sterilization light is installed on the upper side of the printed circuit board (231). The sterilization light source (232) may be a UVC LED, and in addition to this, various types of sterilization devices may be used within the technical concept of sterilizing bacteria in the filter unit (40).

[0222] Meanwhile, since the sterilization light source (232) of the sterilization unit (200) is located above the entrance unit (22), it is possible to prevent the sterilization light source (232) from being irradiated to the outside of the first case unit (20) through the entrance unit (22).

[0223] [Rotational support]

[0224] FIG. 7 is a cross-sectional view of a rotational support member (300) according to one embodiment of the present invention, FIG. 8 is a perspective view showing a discharge member (140) and a rotational support member (300) according to one embodiment of the present invention, and FIG. 20 is a plan view showing a core support member (350) according to one embodiment of the present invention.

[0225] As illustrated in FIGS. 6 to 8 and FIG. 20, the rotational support member (300) is connected to the housing member (10) so that its movement is restricted, and rotatably supports the discharge member (140) located at the discharge port (24) of the housing member (10). One side of the rotational support member is connected to the housing member (10), and the other side is a rotational member installed at a position facing the first curved groove (182) and the second curved groove (192), which rotatably supports the first support member (180) and the second support member (190). The rotational support member (300) according to one embodiment of the present invention includes a core member (310), a core support member (350), and a ball joint (360).

[0226] [Absence of Core]

[0227] The core member (310) is located below the discharge section (140) which controls the direction of air discharge, and can extend from the center of the discharge port (24) toward the discharge section (140). Additionally, the core member (310) is located below the second support section (190) and can extend from the center of the discharge port (24) toward the second support section (190) to support the ball joint (360). Furthermore, the core member (310) has an outer surface that is curved, and since the cross-sectional area gradually decreases from the lower side connected to the core support section (350) toward the direction toward the ball joint (360), the air resistance moving from the lower side to the upper side can be minimized.

[0228] Additionally, the core member (310) is installed in a conical shape, and the cross-sectional area may gradually decrease as it faces upward. A core member (310) according to one embodiment of the present invention may include a core base (312), a core body (314), and a core connecting part (320).

[0229] The core base (312) forms the lower part of the core member (310) and is fixed to the core support part (350). The core base (312) is located in the center of the housing part (10) and is in the shape of a pipe extending in the vertical direction.

[0230] The core body (314) extends above the core base (312) and can be installed in a conical shape with the upper and lower sides open.

[0231] The core connection part (320) can be implemented in various modifications within the technical concept of forming a space for installing a position notification part (500) and a space for connecting a ball joint (360) inside the core body (314). The core connection part (320) according to one embodiment of the present invention may include a joint seating part (330) and an inner fastening support part (340).

[0232] The joint seating portion (330) forms a space for the ball joint (360) to be coupled through the upper side of the core body (314). The joint seating portion (330) according to one embodiment of the present invention includes a curved surface support portion (332) that forms a concave curved surface on the upper side of the core body (314) facing the ball joint (360) to which the outer side of the ball joint (360) is seated, and a joint connection hole (334) that forms a hole for installing the ball joint (360) on the upper side of the core body (314).

[0233] The inner fastening support member (340) extends inwardly to the core body (314) and can be implemented in various modifications within the technical concept of supporting the ball joint (360) and the first adjustment bolt (520) of the position notification member (500). The inner fastening support member (340) according to one embodiment of the present invention includes a first fastening support member (342) that extends inwardly to the core body (314) and forms a hole for the body of the first adjustment bolt (520) to pass through, and a second fastening support member (344) that is located on the upper side of the first fastening support member (342) and surrounds the outer side of a mounting projection (369) that extends downwardly to the ball joint (360).

[0234] [Core Support]

[0235] The core support member (350) extends outward from the core member (310) and is fixed to the inner side of the housing member (10), and various modifications can be implemented within the technical concept in which movement is restricted together with the core member (310). The core support member (350) according to one embodiment of the present invention may include a first core support member (352), a second core support member (354), and a connecting member (356).

[0236] The first core support member (352) is coupled to the lower part of the core member (310) and is installed in a ring shape. A core base (312) is coupled to the inner side of the first core support member (352), and a second core support member (354) in a ring shape is installed on the outer side spaced apart from the first core support member (352). The movement of the second core support member (354) can be restricted by various fixing methods, such as being fixed to the housing member (10) by fitting or by being fixed by bolts, etc.

[0237] Additionally, the first core support member (352) and the second core support member (354) may be connected by a connecting member (356). The connecting member (356) may be installed spirally or radially around the first core support member (352). Since the first core support member (352) according to one embodiment of the present invention is installed spirally along the direction of the wind discharged from the fan module (70), the frictional resistance of the connecting member (356) in contact with the air can be reduced.

[0238] [Ball Joint]

[0239] The ball joint (360) is coupled to the core member (310), and various modifications can be implemented within the technical concept of rotatably supporting the discharge part (140). The lower side of the ball joint (360) is coupled to the core member (310) so that movement is restricted. The upper side of the ball joint (360) is inserted into the inner side of the discharge part (140) to rotatably support the discharge part (140). According to one embodiment of the present invention, the upper side of the ball joint (360) is located inside the first curved groove (182) and the second curved groove (192) and rotatably supports the first support part (180) and the second support part (190).

[0240] The ball joint (360) is a spherical shape located inside the spherical groove formed by the first curved groove (182) and the second curved groove (192), and since the outer diameter of the ball joint (360) is formed larger than the lower inner diameter of the second curved groove (192), the ball joint (360) can be prevented from coming out of the second support part (190).

[0241] The end of the ball joint (360) is spherical in shape and is located inside the discharge portion (140), and can rotatably support the discharge portion (140). The upper side of the ball joint (360) is spherical in shape, and a bar-shaped mounting projection (369) extending from the upper side of the spherical shape downward is inserted into the inside of the core member (310) through a joint connection hole (334) located on the upper side of the core member (310) and fixed. The ball joint (360) and the core member (310) can be fixed by various fixing methods, such as by screw fastening, by pin fastening, or by adhesive.

[0242] A ball joint (360) according to one embodiment of the present invention includes a joint body (362) and a mounting projection (369). The joint body (362) is formed in a spherical shape, and a first mounting hole portion (363) and a second mounting hole portion (364) are formed on the inner side of the joint body (362). The first mounting hole portion (363) forms a groove on the outer side of the joint body (362) for fastening a guide projection (410) of a rotation guide portion (400).

[0243] Additionally, the second mounting hole (364), spaced apart from the first mounting hole (363), forms a hole that penetrates the joint body (362) in the vertical direction. The second mounting hole (364) is located in the center of the joint body (362) and forms a hole for installing the notification projection (510) of the position notification part (500). The second mounting hole (364) according to one embodiment of the present invention includes a small diameter hole (368) that forms a hole extending from the upper end of the ball joint (360) toward the inner side of the ball joint (360), and a large diameter hole (366) that communicates with the lower side of the small diameter hole (368) and forms a hole toward the lower side. The inner diameter of the large diameter hole (366) is larger than the inner diameter of the small diameter hole (368). Accordingly, the moving head (512) of the moving projection (511) of the position notification part (500) is located on the inner side of the large diameter hole part (366), and the moving head (512) of the moving projection (511) can protrude upward from the ball joint (360) through the small diameter hole part (368).

[0244] The mounting projection (369) is pipe-shaped and extends downward from the joint body (362), and an inner elastic member (530) of the position indicator (500) is installed on the inner side of the mounting projection (369). The mounting projection (369) is inserted into the inner side of the core member (310) through the joint connection hole (334) and is positioned on the inner side of the second fastening support member (344). The mounting projection (369) is positioned in a state where it is simply inserted into the inner side of the second fastening support member (344), and since a screw thread is formed on the inner side of the mounting projection (369), the first adjustment bolt (520) can be fastened to the inner side of the mounting projection (369).

[0245] Alternatively, screw threads may be formed on the outer side of the mounting projection (369) and the inner side of the second fastening support (344) so ​​that the mounting projection (369) can be fastened to the second fastening support (344).

[0246] [Rotation guide section]

[0247] The rotation guide section (400) is installed on the discharge section (140) and the rotation support section (300), respectively, and various modifications can be implemented within the technical concept of guiding the rotation of the discharge section (140) so that the discharge section (140) rotates within a set angle. The rotation guide section (400) according to one embodiment of the present invention includes a guide projection (410) and a guide groove section (420).

[0248] The guide projection (410) is connected to the ball joint (360) or formed integrally with the ball joint (360), and has a projection shape that protrudes outward from the ball joint (360). The guide projection (410) according to one embodiment of the present invention is bolt-shaped and may include a locking head (411) that engages with the outside of the ball joint (360), and a fastening body (412) that extends from the locking head (411) and is fastened to the inside of the ball joint (360). The fastening body (412) is fastened to the first mounting hole portion (363).

[0249] The guide groove portion (420) can be implemented in various variations within the technical concept of having a concave groove on the inner side of the discharge portion (140) facing the guide projection (410). The guide groove portion (420) according to one embodiment of the present invention may be installed in at least one of the first support portion (180) and the second support portion (190) facing the ball joint (360). Additionally, the guide groove portion (420) may be formed in the first support portion (180) and the second support portion (190), respectively. A first groove portion (421) is formed on the inner side of the first support portion (180) located in the movement path of the guide projection (410), and a second groove portion (422) is formed on the inner side of the second support portion (190).

[0250] When the set angle, which is the rotation angle of the discharge part (140), is 30 degrees, the angle between one end and the other end of the guide groove part (420) is 30 degrees with respect to the center of the joint body (362). If the rotation angle of the discharge part (140) changes, the angle between one end and the other end of the guide groove part (420) is also changed with respect to the center of the joint body (362). Accordingly, the guide projection (410) is inserted into the inner side of the guide groove part (420), and the guide projection (410) catches on the inner side of the guide groove part (420), thereby restricting rotation of the discharge part (140) beyond the set angle.

[0251] [Location Notification Section]

[0252] The position notification unit (500) can be implemented in various variations within the technical concept of providing a sense of operation by engaging with the discharge unit (140) when the discharge unit (140) is in a set position. The set position of the discharge unit (140) is set as the initial position where air passing through the discharge unit (140) is discharged upward, but is not limited thereto, and various rotational positions of the discharge unit (140) may also be set as the set position.

[0253] A location notification part (500) according to one embodiment of the present invention may include a notification projection part (510) and a notification groove part (540).

[0254] The notification projection (510) is equipped with a movable projection (511) that is pressed by elastic force toward the outside of the ball joint (360), and various modifications are possible within the technical concept in which the movable projection (511) protrudes toward the outside of the ball joint (360) when the discharge portion (140) is in a set position. The notification projection (510) according to one embodiment of the present invention may include a movable projection (511), a first adjustment bolt (520), and an inner elastic member (530).

[0255] The movable projection (511) can be moved up and down along the second mounting hole portion (364) provided in the joint body (362). The movable projection (511) according to one embodiment of the present invention is bolt-shaped and may include a movable head (512) and a movable body (514). The movable head (512) is located inside the large diameter hole portion (366) and is restrained from moving upward by engaging with a step provided between the large diameter hole portion (366) and the small diameter hole portion (368). A convex curved surface is formed on the upper end of the movable body (514) that extends upward from the movable head (512).

[0256] And the first adjustment bolt (520) can be fastened to the first fastening support member (342) provided in the core member (310). And the first adjustment bolt (520) can be fastened to the large diameter hole portion (366) provided on the inside of the joint body (362). Alternatively, the first adjustment bolt (520) may be fastened to the screw thread provided on the inside of the large diameter hole portion (366) and may not be fastened to the inside of the first fastening support member (342).

[0257] The lower side of the inner elastic member (530) is supported by the first adjustment bolt (520), and the upper side supports the movable projection (511). In one embodiment of the present invention, the inner elastic member (530) uses a coil spring and presses the movable projection (511) by means of elastic force.

[0258] Various modifications are possible within the technical concept of forming a groove in which the movable projection (511) is inserted and caught within the inner side of the discharge part (140) facing the notification projection part (510). According to one embodiment of the present invention, the notification groove part (540) is formed in the first support part (180). A concave-shaped notification groove part (540) is formed on the lower side of the first support body (181), and when the discharge part (140) is in the initial position, the notification groove part (540) is in a position facing the movable projection (511). Accordingly, the movable projection (511) is inserted into the inner side of the notification groove part (540) to provide a sense of operation to the user.

[0259] [Air flow in portable air purifiers]

[0260] Since an inlet section (22) for sucking in external air is installed along the outer circumference of the first case section (20), air on the outside of the first case section (20) moves to the inside of the first case section (20) through the inlet section (22), thereby increasing the air intake flow rate.

[0261] By operating the fan module (70), air from the outside of the portable air purifier (1) flows into the interior of the portable air purifier (1). At this time, the air from the outside of the portable air purifier (1) passes through the inlet hole (23) installed in a tilted shape and forms a spiral airflow that rotates around the outer circumference of the sterilization support (210).

[0262] Air flowing into the inside of the first case (20) and rising while rotating in a spiral passes through the filter section (40), and in this process, physical particles such as dust / fine dust / ultrafine dust, chemical substances such as odor particles / harmful gases, and microorganisms such as bacteria / viruses contained in the air can be filtered out.

[0263] Since the filter section (40) and the fan module section (70) are arranged in a straight line in the vertical direction, effective air intake and filtering can be achieved while minimizing flow loss.

[0264] Air that has passed through the filter section (40), i.e., purified air, can be introduced into the interior of the fan module section (70). The flow of air can be guided by the bell mouth (132), thereby effectively inducing smooth air inflow into the fan module section (70).

[0265] Air introduced into the interior of the fan module (70) is discharged to the upper side of the fan module (70). The air discharged to the upper side of the fan module (70) can be discharged in a diagonal direction. Here, the diagonal direction can be defined as an upward diagonal direction.

[0266] Air sucked into the lower central part of the fan module (70) moves upward through an annular discharge port provided along the inner edge of the fan module (70), and moves upward through the space formed between the core support part (350) of the rotating support part (300). That is, since a centrifugal fan is applied to the fan module (70), the air introduced into the lower part of the fan module (70) is discharged in an upwardly inclined direction, and since the air flow path of the rotating support part (300) matches the flow path direction, flow path loss can be reduced.

[0267] In this way, the air discharged to the upper side of the fan module (70), i.e., the purified air, flows into the lower side of the discharge section (140) and is discharged to the upper side of the discharge section (140).

[0268] Since the discharge unit (140) rotates within a set angle range, the direction of the discharged air can be adjusted according to the installation angle of the discharge unit (140).

[0269] In addition, since the inner side of the discharge section (140) forms a concave groove, the increase in discharge resistance of air diverted through the discharge section (140) can be reduced. Also, since the filter section (40), the fan module section (70), and the discharge section (140) are arranged in a straight line in the vertical direction, effective air intake, filtering, and discharge of purified air can be achieved while minimizing air flow loss.

[0270] [Rotation of the discharge section]

[0271] Since a spherical ball joint (360) is located on the inner side of the first support member (180) and the second support member (190) of the discharge member (140), the discharge member (140) can rotate around the ball joint (360). Since the discharge member (140) is rotatably installed on the ball joint (360) provided in the rotational support member (300), the discharge member (140) is installed to rotate around the ball joint (360), allowing the direction of air discharge to be easily adjusted.

[0272] When the rotation angle of the discharge unit (140) functioning as a circulator is 0 degrees, the upper side of the discharge unit (140) is installed in a horizontal direction, and the notification groove (540) formed in the first support part (180) of the discharge unit (140) faces the notification projection (510). Therefore, since the movable projection (511) pressed by the inner elastic member (530) is caught on the inner side of the notification groove (540), the user can easily recognize that the discharge unit (140) is positioned in the initial position.

[0273] Meanwhile, a core mounting part (170) that functions as a touch panel is installed in the center of the discharge part (140), and a wire (600) connected to the core mounting part (170) is connected to the lower side of the housing part (10). Therefore, if the panel part rotates 360 degrees without any rotational constraint, there is a high possibility that the wire (600) will be cut or damaged. Therefore, by installing a rotation guide part (400), the rotation angle of the discharge part (140) can be adjusted within a set angle to prevent damage to the wire (600).

[0274] That is, since the guide projection (410) protruding outward from the ball joint (360) engages with the guide groove (420) formed on the inner side of the discharge part (140), the rotation of the discharge part (140) is made within a set angle, thereby preventing the wire (600) connected to the discharge part (140) from breaking or being damaged.

[0275] When the discharge part (140) attempts to rotate beyond a set angle, the guide projection (410) protruding outward from the ball joint (360) collides with the first support part (180) and the second support part (190) located at the boundary of the guide groove part (420), so that the rotation of the discharge part (140) can be achieved within the set angle.

[0276] Meanwhile, the upper pressure of the movable projection (511) can be adjusted by adjusting the position where the first adjustment bolt (520) is fastened to the mounting projection (369).

[0277] Although the present invention has been described above with reference to the illustrated drawings, the present invention is not limited by the embodiments and drawings disclosed in this specification, and it is obvious that various modifications can be made by a person skilled in the art within the scope of the technical concept of the present invention. Furthermore, even if the effects of the configuration of the present invention were not explicitly described while explaining the embodiments of the present invention above, it is natural to acknowledge that the effects predictable by said configuration should also be recognized. Explanation of the symbols

[0278] 1: Portable air purifier 10: Housing Department 20: First case section 21: Receiving space 22: Entrance section 23: Entrance hall 24: Outlet 30: Second case section 40: Filter section 70,370: Fan module section 80,380: Fan housing 81,381: Support plate 82,382: Connecting support 83,383: Wire guide 84,384: Side support 85,385: Inner guide 86,386: Projecting boss 90: Absence of fans 100: Hub 101: Hub plate section 102: Shaft coupling section 103: First reinforcing projection 105: Inner projection 106: Second reinforcing projection 107: Skirt section 110: Fan blade 111: First section 112: Second section 113: First edge 114: Second edge 120: Shroud 121: Entrance Turn 130,430: Fan base 131,431: Base plate 132,432: Bell mouth 133: Protruding rib 134,434: Connecting projection 140: Discharge section 141: Discharge body part 150: First discharge section 152: First discharge core 154: First discharge body 156: Vane 160: Second discharge section 161: Second discharge core 162: Second discharge body 163: Discharge core support 170: Core mounting section 171: Touch panel 172: Display 173: Fixing case 180: First support member 181: First support body 182: First curved groove 183: First wing member 190: Second support part 191: Second support body 192: Second curved groove 193: Hollow part 195: Fastening member 200: Sterilization section 210: Sterilization support part 211: Support base 212: Fixing frame 220: Base part 221: Support column 222: Support plate 230: Irradiation unit 231: Printed circuit board 232: Sterilization light source 240: Battery 300: Rotating support 310: Core component 312: Core base 314: Core body 320: Core connection part 330: Joint seating part 332: Curved surface support part 334: Joint connection hole 340: Inner fastening part 342: First fastening part 344: Second fastening part 350: Core support part 352: First core support part 354: Second core support part 356: Connecting rod 360: Ball joint 362: Joint body 363: First mounting hole 364: Second mounting hole 366: Large diameter hole 368: Small diameter hole 369: Mounting protrusion 400: Rotation guide part 410: Guide projection 411: Locking head 412: Fastening body 420: Guide Home 421: 1st Home 422: 2nd Home 500: Location Notification Unit 510: Notification projection 511: Moving projection 512: Moving head 514: Moving body 520: First adjustment bolt 530: Inner elastic member 540: Notification Home 600: Wire

Claims

Claim 1 A housing portion having an inlet portion for inhaling air, with a filter portion and a fan module portion located inside and forming an air passage in the vertical direction; a discharge portion located at the outlet of the housing portion and guiding the direction of air discharge; a rotational support portion connected to the housing portion and restricted from movement, and rotatably supporting the discharge portion; and a rotational guide portion installed on the discharge portion and the rotational support portion, respectively, and guiding the rotation of the discharge portion so that the discharge portion rotates within a set angle; wherein the rotational support portion comprises: a core member located below the discharge portion and extending from the center of the outlet portion toward the discharge portion; and a core support portion extending outward from the core member and fixed to the inside of the housing portion, with movement restricted together with the core member. A portable air purifier comprising: a ball joint, wherein the lower side is coupled to the core member and restricted from movement, and the upper side is inserted into the inner side of the discharge part and rotatably supports the discharge part; wherein the rotation guide part comprises: a guide projection connected to or integrally formed with the ball joint and protruding outward from the ball joint; and a guide groove part having a concave groove on the inner side of the discharge part facing the guide projection; wherein the guide projection is inserted into the inner side of the guide groove part, and the guide projection catches on the inner side of the guide groove part, thereby restricting rotation of the discharge part beyond a set angle. Claim 2 delete Claim 3 A portable air purifier according to claim 1, wherein the core member has an outer surface that is curved, and the cross-sectional area gradually decreases in the direction toward the ball joint from the lower side connected to the core support. Claim 4 A portable air purifier according to claim 1, wherein the core member is installed in a conical shape and the cross-sectional area gradually decreases as it faces upward. Claim 5 delete Claim 6 A portable air purifier according to claim 1, wherein the discharge portion comprises: a discharge body portion located at the outlet of the housing portion and guiding the direction of air discharge; a first support portion connected to or formed integrally with the discharge body portion and having a first curved groove in the shape of a concave groove; and a second support portion coupled to the first support portion and having a second curved groove connected to the first curved groove on the inside; wherein the ball joint is located in the inner space formed by the first curved groove and the second curved groove and rotatably supports the first support portion and the second support portion. Claim 7 In claim 6, the guide groove portion is a portable air purifier installed on at least one of the first support portion and the second support portion facing the ball joint. Claim 8 A portable air purifier according to claim 1, further comprising: a position notification part that engages with the discharge part when the discharge part is in a set position and provides a sense of operation; wherein the position notification part comprises a movable projection that is pressed by elastic force toward the outside of the ball joint, and a notification projection part in which the movable projection protrudes toward the outside of the ball joint when the discharge part is in a set position; and a notification groove part that forms a groove in which the movable projection is inserted and engaged on the inside of the discharge part facing the notification projection part. Claim 9 A portable air purifier according to claim 8, wherein the notification projection comprises: a first adjustment bolt fastened to the lower side of a mounting hole portion provided in the ball joint; and an inner elastic member, the lower side of which is supported by the first adjustment bolt and the upper side of which supports the movable projection and presses the movable projection by means of elastic force. Claim 10 A portable air purifier comprising: a housing portion having an inlet portion for inhaling air, with a filter portion and a fan module portion located on the inside and forming an air passage in the vertical direction; a discharge body portion located at the outlet of the housing portion and guiding the direction of air discharge; a first support portion connected to or formed integrally with the discharge body portion and having a first curved groove in the shape of a concave groove; a second support portion coupled to the first support portion and having a second curved groove connected to the first curved groove on the inside; and a rotational support portion having one side connected to the housing portion and the other side installed at a position facing the first curved groove and the second curved groove to rotatably support the first support portion and the second support portion; wherein the second support portion includes a second support body installed in the circumferential direction having a hollow portion communicating in the vertical direction, and the second curved groove is formed on the inside of the second support body facing the hollow portion. Claim 11 A portable air purifier according to claim 10, wherein the rotational support member comprises: a core member located below the second support member and extending in a direction toward the second support member from the center of the discharge port; a core support member extending outwardly from the core member and fixed to the inside of the housing member, and having its movement restricted together with the core member; and a ball joint, the lower side of which is coupled to the core member and has its movement restricted, and the upper side of which is located inside the first curved groove and the second curved groove, and which rotatably supports the first support member and the second support member. Claim 12 In claim 10, the first support member comprises: a first support body fixed to the center of the discharge body part, wherein the first curved groove having a concave groove shape is provided on the inner side; and a first wing member extending outwardly from the first support body and facing the second support member; wherein the first wing member and the second support member are fixed by fastening with a fastening member. Claim 13 delete Claim 14 A portable air purifier according to claim 10, wherein the rotational support member includes a spherical ball joint located inside a spherical groove formed by the first curved groove and the second curved groove, and the outer diameter of the ball joint is formed to be larger than the lower inner diameter of the second curved groove to prevent the ball joint from detaching to the outside of the second support member. Claim 15 A portable air purifier according to claim 14, wherein the frictional force between the first support member and the ball joint and the frictional force between the second support member and the ball joint are inversely proportional to the distance between the first support member and the second support member installed facing each other with the ball joint in between.

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