Portable Air Purifier

Abstract

To provide a portable air purifier in which a discharge part which guides air discharge is rotatably installed.SOLUTION: A portable air purifier 1 includes: a housing part 10 which includes an inlet part 22 for suctioning air and in which a filter part 40 and a fan module part 70 are located and an air passage is formed in a vertical direction; a discharge part 150 which is located at a discharge port 24 of the housing part and guides an air discharge direction; a rotation support part 300 which is connected to the housing part to be restrained from moving and rotatably supports the discharge part; and a rotation guide part 400 which is installed in the discharge part and the rotation support part and guides rotation of the discharge part so that the discharge part rotates within a setting angle.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a portable air purifier, and more particularly to a portable air purifier in which an outlet for discharging air upward is rotatably installed.

[0002] [Related Technology] This application claims priority under Article 4 of Korean Patent Application No. 10-2020-0093970 (filing date: July 28, 2020) and Korean Patent Application No. 10-2020-0170567 (filing date: December 8, 2020), and the present invention is based on the disclosures in those Korean patent applications. For reference, the contents of the specification, claims, and drawings of those Korean patent applications are incorporated herein by reference. [Background technology]

[0003] Air purifiers are widely used devices in modern life that purify the air by filtering out physical particles such as dust, fine dust, and ultrafine dust, odor particles, chemical substances such as harmful gases, and microorganisms such as bacteria and viruses.

[0004] Air purifiers have become an essential appliance in the home due to the influence of urbanization, industrialization, and globalization. Demand for air purifiers is also increasing rapidly due to factors such as the increase in fine dust particles, the increase in allergy sufferers, and the improvement in living standards.

[0005] The air purifier is designed to be 100m wide, just like in a regular home. 2 When targeting environments exceeding the above, the size of the device may be larger. Such a device may use a combination of 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 a large space, a large-sized air purifier that can accommodate a combination of various filters may be used.

[0006] However, using a large-sized air purifier in a small space such as a studio apartment or a car is inefficient in terms of space utilization, mobility, and energy consumption. Also, for users who travel frequently, a small-sized air purifier that can be carried by individuals is more suitable than a large-sized air purifier. In this context, portable air purifiers that can be carried by individuals have been developed.

[0007] Portable air purifiers are provided in small and lightweight forms for easy portability. Such portable air purifiers have the advantage that users can easily carry them and use them wherever they want. That is, portable air purifiers are suitable for users who frequently go out or have a lifestyle where they travel to various places, rather than staying in one place such as at home for long periods of time.

[0008] In the prior art (Patent Document 1: Korean Patent Publication No. 2020-0037187), air is drawn in from the rear of a portable air purifier and expelled from the front.

[0009] However, portable air purifiers have a problem in that they are not provided with a separate outlet that can be rotated to adjust the air outlet direction, since the product's external size is set for easy portability, and therefore there is a need to improve this.

[0010] The background art of the present invention is disclosed in Korean Patent Publication No. 2020-0037187 (Patent Document 1: Published on April 8, 2020, Title of Invention: Portable Air Purifier). [Prior art documents] [Patent documents]

[0011] [Patent Document 1] Korean Patent Publication No. 2020-0037187 Summary of the Invention [Problem to be solved by the invention]

[0012] SUMMARY OF THE INVENTION An object of the present invention is to provide a portable air purifier in which an outlet for guiding air discharge is rotatably installed.

[0013] Another object of the present invention is to provide a portable air purifier in which the outlet can be rotated within a set angle, thereby preventing damage to the wires connected to the outlet.

[0014] The object of the present invention is not limited to the object mentioned above, and other unmentioned objects and advantages of the present invention can be understood from the following description and can be more clearly understood from the embodiments of the present invention. Also, it is clear that the object and advantages of the present invention can be realized by the means and combinations thereof set forth in the claims. [Means for solving the problem]

[0015] [One aspect of the present invention] The present invention proposes the following as one aspect thereof. [1] A portable air purifier, a housing section having an inlet section for drawing in air, the filter section and the fan module section being located inside the housing section, and forming an air flow path in the vertical direction; a discharge portion located at the outlet of the housing portion and guiding the direction of air discharge; a rotation support portion connected to the housing portion so as to be restricted in movement and configured to rotatably support the discharge portion; and a rotation guide portion installed on the discharge portion and the rotation support portion, respectively, for guiding the rotation of the discharge portion so that the discharge portion rotates within a set angle; [2] The rotation support part is a core member located below the discharge portion and extending in a direction from the center of the discharge port toward the discharge portion; a core support portion extending outside the core member, fixed to the inside of the housing portion, and constrained from moving together with the core member; and The portable air purifier described in [1] is provided with a ball joint whose lower side is connected to the core member to restrict movement, and whose upper side is inserted inside the discharge portion to rotatably support the discharge portion. [3] The portable air purifier according to [2], wherein the core member has a curved outer surface and a cross-sectional area that gradually decreases from the lower side connected to the core support portion toward the ball joint. [4] The portable air purifier according to [2], wherein the core member is arranged in a conical shape, and the cross-sectional area gradually decreases toward the upper side. [5] The rotation guide portion is a guide protrusion connected to the ball joint or integral with the ball joint and protruding outward from the ball joint; and a guide groove portion having a concave groove on the inner side of the discharge portion facing the guide protrusion; The portable air purifier described in [2], wherein the guide protrusion is inserted into the inside of the guide groove portion, and the guide protrusion engages with the inside of the guide groove portion, restricting rotation of the discharge portion beyond a set angle. [6] The discharge portion includes a discharge body portion located at the outlet of the housing portion and guiding the air discharge direction; a first support portion connected to the discharge body portion or integrally formed with the discharge body portion, the first support portion having a first curved groove in the form of a concave groove; and a second support part coupled to the first support part and having a second curved groove formed therein that is connected to the first curved groove; The portable air purifier described in [5], 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 part and the second support part. [7] The portable air purifier according to [6], wherein the guide groove portion is installed in at least one of the first support portion and the second support portion facing the ball joint. [8] A position indicator that engages with the discharge unit to provide a sense of operation when the discharge unit is in a set position; The position notification unit a moving protrusion that is pressed toward the outside of the ball joint by elastic force, and when the discharge portion is in a set position, the moving protrusion protrudes toward the outside of the ball joint; and The portable air purifier according to [2], further comprising: a notification groove portion that forms a groove into which the movable protrusion is inserted and hangs on the inside of the discharge portion facing the notification protrusion portion. [9] The notification protrusion is a first adjustment bolt fastened to a lower side of a mounting hole provided in the ball joint; and A portable air purifier as described in [8], comprising an inner elastic member whose lower side is supported by the first adjustment bolt and whose upper side supports the movable protrusion and applies pressure to the movable protrusion by elastic force.

[10] A portable air purifier, a housing section having an inlet section for drawing in air, the filter section and the fan module section being located inside the housing section, and forming an air flow path in the vertical direction; a discharge body portion located at the discharge port of the housing portion and guiding the direction of air discharge; a first support part connected to the discharge body part or integrally formed with the discharge body part, the first support part having a first curved groove in the form of a concave groove; a second support portion coupled to the first support portion and having a second curved groove formed therein, the second curved groove being connected to the first curved groove; and a rotary support part connected to the housing part at one side and installed at a position facing the first curved groove and the second curved groove at the other side, and rotatably supporting the first support part and the second support part.

[11] The rotation support part is a core member located below the second support portion and extending in a direction from the center of the discharge port toward the second support portion; a core support portion extending outside the core member, fixed to the inside of the housing portion, and constrained from moving together with the core member; and The portable air purifier according to

[10] , wherein the lower side is connected to the core member and is restricted in movement, and the upper side is provided with a ball joint positioned inside the first curved groove and the second curved groove to rotatably support the first support part and the second support part.

[12] The first support portion is a first support body having the first curved groove in the form of a concave groove on the inside and fixed to the center of the ejection body portion; and a first wing member extending outward from the first support body and facing the second support portion; The portable air purifier according to

[10] , wherein the first wing member and the second support portion are fixed by fastening a fastening member.

[13] The second support portion includes a second support body that has a hollow portion that communicates in the vertical direction and is installed in the circumferential direction; The portable air purifier according to

[10] , wherein the second curved groove is formed on the inside of the second support body facing the hollow portion.

[14] The rotation support portion includes a spherical ball joint located inside a spherical groove formed by the first curved groove and the second curved groove, The portable air purifier described in

[10] , wherein the outer diameter of the ball joint is larger than the inner diameter of the lower end of the second curved groove, thereby preventing the ball joint from coming off outside the second support portion.

[15] The portable air purifier according to

[14] , wherein the frictional force between the first support part and the ball joint and the frictional force between the second support part and the ball joint are inversely proportional to the separation distance between the first support part and the second support part, which are arranged in a shape facing each other via the ball joint.

[0016] The portable air purifier according to the present invention is characterized in that the outlet part located on the upper side of the housing part is rotatably installed by the rotation support part.

[0017] Specifically, the discharge part is rotatably installed on the ball joint provided on the rotation support part, and the discharge part is rotatably installed around the ball joint, making it possible to easily adjust the air discharge direction.

[0018] The portable air purifier according to the present invention is also characterized in that the rotation angle of the discharge part is limited to within a set angle by the rotation guide part.

[0019] Specifically, the guide protrusion protruding from the outside of the ball joint engages with the guide groove formed on the inside of the discharge part, allowing the discharge part to rotate within a set angle, preventing the wires connected to the discharge part from breaking or being damaged.

[0020] A portable air purifier according to one embodiment of the present invention may include a housing part having an inlet part for drawing in air, with a filter part and a fan module part located inside to form an air flow path in an up-down direction; a discharge part located at an outlet of the housing part and guiding the direction of air discharge; a rotation support part connected to the housing part, whose movement is restricted, and rotatably supporting the discharge part; and rotation guide parts installed on the discharge part and the rotation support part, respectively, and guiding the rotation of the discharge part so that the discharge part rotates within a set angle.

[0021] The rotation support portion may also include a core member located below the discharge portion and extending in a direction from the center of the outlet toward the discharge portion, a core support portion extending outside the core member and fixed to the inside of the housing portion and restrained from moving together with the core member, and a ball joint whose lower side is connected to the core member and restrained from moving, and whose upper side is inserted inside the discharge portion and rotatably supports the discharge portion.

[0022] The core member may have a curved outer surface, and the cross-sectional area may gradually decrease from the lower side connected to the core support portion toward the ball joint.

[0023] The core member may also be arranged in a conical shape, with the cross-sectional area gradually decreasing upward.

[0024] In addition, the rotation guide portion may be connected to the ball joint or may be integral with the ball joint, and may include a guide protrusion that protrudes outward from the ball joint, and a guide groove portion that has a concave groove on the inside of the discharge portion facing the guide protrusion.

[0025] Furthermore, the guide protrusion is inserted into the inside of the guide groove portion, and the guide protrusion is engaged with the inside of the guide groove portion, so that rotation of the discharge portion beyond a set angle can be restricted.

[0026] The discharge part may include a discharge body part located at the discharge port of the housing part and guiding the air discharge direction, a first support part connected to the discharge body part or formed integrally with the discharge body part and having a first curved groove in the shape of a concave groove, and a second support part coupled to the first support part and having a second curved groove on the inside that is connected to the first curved groove.

[0027] Furthermore, the ball joint is positioned in the inner space formed by the first curved groove and the second curved groove, and can rotatably support the first support part and the second support part.

[0028] Furthermore, the guide groove portion may be provided on at least one of the first support portion and the second support portion facing the ball joint.

[0029] The present invention may further include a position notification unit that applies to the discharge unit to provide a sense of operation when the discharge unit is in a set position.

[0030] The position indicator may also include a movable protrusion that is pressurized by elastic force toward the outside of the ball joint, and may include an indicator protrusion portion that protrudes from the outside of the ball joint when the discharge portion is in a set position, and an indicator groove portion that forms a groove into which the movable protrusion is inserted on the inside of the discharge portion facing the indicator protrusion portion.

[0031] The notification protrusion may also include a first adjustment bolt that is fastened to the lower side of the mounting hole provided in the ball joint, and an inner elastic member that is supported on the first adjustment bolt at the lower side and supports the moving protrusion at the upper side, and applies pressure to the moving protrusion by elastic force.

[0032] The present invention may also include a housing portion having an inlet portion for taking in air, with a filter portion and a fan module portion located inside to form an air flow path in a vertical direction; a discharge body portion located at an outlet of the housing portion and guiding the air discharge direction; a first support portion connected to the discharge body portion or formed integrally with the discharge body portion and having a first curved groove in a concave groove shape; a second support portion connected to the first support portion and having a second curved groove on its inside that is connected to the first curved groove; and a rotation support portion connected to the housing portion on one side and 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.

[0033] The rotational support portion may also include a core member located below the second support portion and extending in a direction from the center of the discharge port toward the second support portion, a core support portion extending outside the core member and fixed to the inside of the housing portion and constrained in movement together with the core member, and a ball joint whose lower side is connected to the core member and whose movement is constrained, and whose upper side is located inside the first curved groove and the second curved groove and rotatably supports the first support portion and the second support portion.

[0034] The first support portion may also include a first support body having the first curved groove in the shape of a concave groove on the inside and fixed to the center of the ejection body portion, and a first wing member extending outside the first support body and facing the second support portion.

[0035] The first wing member and the second support portion may be fixed together by fastening with a fastening member.

[0036] The second support portion may include a second support body that has a hollow portion that communicates in the vertical direction and is disposed in the circumferential direction.

[0037] The second curved groove may be formed on the inner side of the second support body facing the hollow portion.

[0038] The rotation support portion may also include a spherical ball joint located inside a spherical groove formed by the first curved groove and the second curved groove.

[0039] Furthermore, the outer diameter of the ball joint is formed to be larger than the inner diameter of the lower end of the second curved groove, thereby preventing the ball joint from coming off to the outside of the second support portion.

[0040] In addition, the friction force between the first support part and the ball joint and the friction force between the second support part and the ball joint may be inversely proportional to the separation distance between the first support part and the second support part, which are installed in a shape facing each other via the ball joint. [Effects of the Invention]

[0041] In the portable air purifier according to the present invention, the outlet part located on the upper side of the housing part is rotatably installed by the rotation support part, so that the air discharge direction can be easily adjusted, thereby improving consumer satisfaction.

[0042] In addition, according to the present invention, the rotation guide unit limits the rotation angle of the discharge unit to within a set angle, preventing breakage or damage to the electric wire connected to the discharge unit, thereby reducing maintenance and repair costs.

[0043] Furthermore, according to the present invention, the moving protrusion protruding from the outside of the ball joint engages with the notification groove formed in the discharge part, so that the user can easily recognize that the ball joint has reached its initial position, thereby improving convenience of use.

[0044] The above-mentioned effects and specific effects of the present invention will be described below together with specific matters for carrying out the invention. [Brief explanation of the drawings]

[0045] [Figure 1] 1 is a perspective view of a portable air purifier according to an embodiment of the present invention; [Figure 2] 1 is a cross-sectional view of a portable air purifier according to one embodiment of the present invention. [Figure 3] FIG. 4 is a cross-sectional view showing a state in which the discharge portion according to the embodiment of the present invention is connected to a rotation guide portion. [Figure 4] FIG. 2 is an exploded perspective view of a discharge portion according to an embodiment of the present invention. [Figure 5] FIG. 2 is an exploded perspective view of a rotation support according to an embodiment of the present invention. [Figure 6] FIG. 2 is an exploded cross-sectional view of a discharge portion and a rotation support portion according to an embodiment of the present invention. [Figure 7] FIG. 3 is a cross-sectional view of a rotation support according to an embodiment of the present invention. [Figure 8] FIG. 2 is a perspective view showing a discharge portion and a rotation support portion according to an embodiment of the present invention. [Figure 9] FIG. 2 is an exploded perspective view of a fan module according to an embodiment of the present invention. [Figure 10] FIG. 2 is a plan view of a fan module according to an embodiment of the present invention. [Figure 11] FIG. 2 is a bottom view of a fan module portion according to an embodiment of the present invention. [Figure 12]FIG. 2 is a cross-sectional view of a fan module portion according to an embodiment of the present invention. [Figure 13] FIG. 2 is a perspective view of a fan member according to an embodiment of the present invention. [Figure 14] FIG. 2 is a top view of a fan member according to one embodiment of the present invention. [Figure 15] FIG. 2 is a bottom view of a fan member according to one embodiment of the present invention. [Figure 16] FIG. 2 is a front view of a fan member according to an embodiment of the present invention. [Figure 17] 2 is a cross-sectional view of a fan member according to one embodiment of the present invention; FIG. [Figure 18] FIG. 10 is a perspective view showing a fan module according to another embodiment of the present invention. [Figure 19] FIG. 10 is an exploded perspective view showing a fan module according to another embodiment of the present invention. [Figure 20] FIG. 3 is a plan view showing a core support according to an embodiment of the present invention. [Figure 21] 1 is a view showing a state in which a ball joint according to an embodiment of the present invention is installed between a first support part and a second support part. DETAILED DESCRIPTION OF THE INVENTION

[0046] The above-mentioned objects, features, and advantages will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can easily implement the technical concept of the present invention. In the description of the present invention, if a detailed description of known technologies according to the present invention is deemed to obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings are used to indicate the same or similar components.

[0047] Although terms such as "first," "second," etc. are used to describe various components, it is understood that these components are not limited by these terms. These terms are used merely to distinguish one component from another, and unless otherwise specified, a first component may also be a second component.

[0048] In the following, when an arbitrary structure is placed "on top (or bottom)" of a component or "on (or below)" a component, it means that the arbitrary structure is not only placed in contact with the upper surface (or lower surface) of the component, but also that other structures may be interposed between the component and the arbitrary structure placed on (or below) the component.

[0049] Furthermore, when a component is described as being "coupled," "coupled," or "connected" to another component, it should be understood that the components may be directly coupled or connected to each other, but that other components may be "intervening" between the components, or that each component may be "coupled," "coupled," or "connected" via other components.

[0050] Throughout the specification, unless otherwise specified, each element may be singular or plural.

[0051] As used herein, singular expressions include plural expressions unless the context clearly dictates otherwise. Terms such as "comprise" or "include" in this application should not be interpreted as including all of the various components or multiple steps described in the specification, but should be interpreted as meaning that some of the components or some of the steps may not be included, or that additional components or steps may be further included.

[0052] Throughout the specification, unless otherwise specified, "A and / or B" means A, B, or A and B, and "C to D" means at least C and at most D, unless otherwise specified.

[0053] [Exterior of the portable air purifier] 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 the portable air purifier 1 according to one embodiment of the present invention.

[0054] 1 and 2, a portable air purifier 1 according to an embodiment of the present invention may be formed in a substantially cylindrical shape. The portable air purifier 1 may include at least one of a housing unit 10, a filter unit 40, a fan module unit 70, a discharge unit 140, a sterilizer unit 200, a rotation support unit 300, a rotation guide unit 400, and a position indicator unit 500.

[0055] The housing 10 includes an inlet 22, and the filter 40, sterilizer 200, and fan module 70 may be located inside the housing 10. The housing 10 also defines an air flow path in the vertical direction. Because a cylindrical air flow path is formed inside the housing 10, frictional resistance of air moving in the vertical direction may be reduced.

[0056] In addition, the centers of the inlet unit 22, the filter unit 40, the sterilizer unit 200, the fan module unit 70, the outlet 24, and the rotation support unit 300 may be aligned in the vertical direction along a vertical reference line that passes through the center of the housing unit 10. Therefore, the air flow moving from the bottom to the top along the housing unit 10 moves in a straight line in the vertical direction, shortening the air movement path, thereby reducing air flow resistance and improving air purification efficiency.

[0057] When the portable air purifier 1 is placed on a horizontal surface, the vertical reference line coincides with the vertical line. The housing 10 may be made of a single member, but preferably may be made of multiple members.

[0058] The portable air purifier 1 may be formed in a cylindrical shape that is long in the vertical direction as a whole. This allows the user to use the portable air purifier 1 either upright or lying down. In addition, in places where vibrations occur, such as inside a car, the portable air purifier 1 is used by being attached to a recessed portion with its downward side facing downward, like a cup holder, so that its position can be stably maintained.

[0059] The direction is defined as follows. When the direction from the first case part 20 to the discharge part 140 is defined as the upper part, and the direction from the first case part 20 to the second case part 30 is defined as the lower part, the "first direction" refers to the up-down direction or the axial direction. The first direction can also be said to have the same meaning as the vertical direction. The "second direction" is perpendicular to the first direction and refers to the left-right direction, the horizontal direction, or the radial direction.

[0060] [General structure of a portable air purifier] The portable air purifier 1 of this embodiment may include a housing unit 10, a filter unit 40, a fan module unit 70, a discharge unit 140, a rotation support unit 300, and a rotation guide unit 400. The portable air purifier 1 may further include a position notification unit 500, a sterilization unit 200, and a battery 240.

[0061] The housing 10 includes a first case 20 and a second case 30. The first case 20 and the second case 30 form the exterior framework of the portable air purifier 1. The exterior side and bottom surfaces of the portable air purifier 1 are formed by the first case 20 and the second case 30. An accommodation space 21 is formed inside the first case 20 and the second case 30. Electrical components including the filter unit 40, the fan module unit 70, the sterilizer unit 200, the rotation support unit 300, and the battery 240 are accommodated in the accommodation space 21. The first case 20 and the second case 30 are preferably formed to have sufficient strength to protect the accommodated components from external impact.

[0062] The filter unit 40 is installed in the accommodation space 21 of the first case unit 20 and is disposed between the fan module unit 70 and the inlet unit 22. That is, the filter unit 40 is disposed below the fan module unit 70 and serves to purify the air drawn in through the inlet unit 22 of the portable air purifier 1. The air purified by passing through the filter unit 40 passes through the fan module unit 70 and the discharge unit 140 and is discharged to the top of the portable air purifier 1.

[0063] The filter unit 40 is installed inside the first case unit 20 and purifies the air that has flowed into the inlet unit 22. The filter unit 40 can be formed in a cylindrical shape that extends in the vertical direction.

[0064] The filter unit 40 may be composed of a single filter, or may be composed of a plurality of filters stacked together as needed. The filter unit 40 may further include a separate filter case (not shown) for fixing the filter.

[0065] The filter case is fixed to the inside of the first case portion 20, and an insertion space for accommodating the filter can be formed inside the filter case.

[0066] The fan module unit 70 may be accommodated in the accommodation space 21 inside the first case unit 20 and disposed between the discharge unit 140 and the filter unit 40. More specifically, the fan module unit 70 may be disposed between the exhaust port 24 and the filter unit 40. That is, the fan module unit 70 is located above the filter unit 40, and the exhaust port 24, the rotation support unit 300, the rotation guide unit 400, and the discharge unit 140 are located above the fan module unit 70. The fan module unit 70 serves to draw in air that has flowed into the lower part of the filter unit 40 through the inlet unit 22 and discharge the air to the upper part of the first case unit 20.

[0067] The center of rotation of the discharge unit 140 may vertically coincide with the center of the fan module unit 70. Air flowing in through the inlet unit 22 moves upward, passes through the filter unit 40, the fan module unit 70, and the discharge unit 140 in that order, and is discharged to the top of the portable air purifier 1.

[0068] In this embodiment, the fan module unit 70 is exemplified as including a mixed flow fan. The fan module unit 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.

[0069] The outlet part 140 is rotatably installed on the upper side of the first case part 20 and can guide the discharge direction of air moved upward through the outlet 24. A rotation support part 300 is provided on the upper part of the first case part 20, and the outlet part 140 is rotatably installed on the rotation support part 300. Since both the upper and lower sides of the outlet part 140 are open, the air moved to the lower part of the outlet part 140 through the outlet 24 can be discharged to the outside of the portable air purifier 1 through the upper part of the outlet part 140.

[0070] The sterilization unit 200 is located below the filter unit 40 and may be fixed to at least one of the first case unit 20 and the second case unit 30. The sterilization unit 200 is spaced a set distance from the filter unit 40 and irradiates sterilizing light toward the filter unit 40. Since the sterilizing 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 sterilizing light does not leak out of the portable air purifier 1 through the inlet unit 22.

[0071] The battery 240 is installed in the receiving space 21 provided inside the second case part 30, and is disposed below the sterilization part 200. The battery 240 can supply power for driving the portable air purifier 1.

[0072] [Portable air purifier parts layout] The storage space 21 provided inside the portable air purifier 1 is divided into a first area (A) and a second area (B). When the storage space 21 is divided vertically, the upper area is the first area (A) and the lower area is the second area (B). It should be made clear that the first area (A) and the second area (B) are not physically separated areas but are merely conceptually separated areas.

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

[0074] The first area (A) is where the components related to the intake, purification, and discharge of air are arranged. That is, the inlet section 22, the filter section 40, the fan module section 70, the rotation support section 300, and the discharge section 140 are arranged in the first area (A), so that air flows from the bottom to the top in the first area (A), and the direction of air discharge is adjusted by the rotatably installed discharge section 140.

[0075] The first case portion 20 is provided with an inlet portion 22 having a plurality of inlet holes 23 as a passage for drawing in air. An outlet 24 and a discharge portion 140 rotatably installed on the rotation support portion 300 are installed at the top of the first case portion 20 as a passage for discharging the air purified in the first region (A). Therefore, an air flow path connecting the filter portion 40, the fan module portion 70, and the discharge portion 140 is formed inside the first case portion 20.

[0076] That is, the first area (A) is provided with the inlet section 22, the filter section 40, the fan module section 70, the discharge section 140, the rotation support section 300, the rotation notification section, and the exhaust port 24. The flow path required for the air drawn into the portable air purifier 1 to pass through the inside of the air purifier is formed in the first area (A).

[0077] The second area (B) is where components not directly related to the air flow for purifying the air are located, i.e., the control unit including the PCB and the battery 240 can be installed.

[0078] According to this embodiment, the housing 10 is formed into a cylindrical shape whose vertical length is longer than its lateral length. The first region (A) located at the top is formed to be longer in the vertical direction than the second region (B) located at the bottom. That is, when the portable air purifier 1 is stood upright, the first region (A) at the top occupies a larger area than the second region (B) at the bottom.

[0079] Since the outlet part 140 is rotatably installed on the rotation support part 300, it is possible to easily adjust the direction in which purified air is discharged from the top of the portable air purifier 1. Therefore, the air purified by the portable air purifier 1 can more easily reach the user's face.

[0080] When the portable air purifier 1 is placed on a bottom surface lower than the user's face, it is more advantageous to use the portable air purifier 1 in a vertical position rather than a horizontal position in order to increase the amount of air purified by the portable air purifier 1 that reaches the user's face.

[0081] Therefore, when the portable air purifier 1 is placed vertically and air is discharged from the top of the portable air purifier 1 through the outlet 140 rotated in the set direction, the amount of air purified by the portable air purifier 1 that reaches the user's face will increase.

[0082] [Detailed components of the portable air purifier] The portable air purifier 1 according to an embodiment of the present invention may include at least one of a housing unit 10, a filter unit 40, a fan module unit 70, an outlet unit 140, a rotation support unit 300, a rotation guide unit 400, and a position indicator unit 500. The portable air purifier 1 according to an embodiment of the present invention may further include a sterilizer unit 200 and a battery 240.

[0083] [First case part] The housing 10 includes a first case 20 and a second case 40. The first case 20 may have an internal storage space 21 and an inlet 22 for air intake on its lower side. The first case 20 may be cylindrical and open at the top and bottom. The first case 20 may be a single component, or may be made up of multiple components as needed. The first case 20 according to one embodiment of the present invention may be made up of multiple components, and various modifications are possible, such as connecting the components together by a snap-fit ​​method, adhesive, or welding, or by connecting them together with fasteners 195 such as bolts.

[0084] 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. For this purpose, an inlet part 22 having an inlet hole 23 is provided along the lower periphery of the first case part 20. An outlet 24 for discharging air may be provided on the upper side of the first case part 20.

[0085] In addition, the inlet section 22 for drawing in air is installed along the outer circumference of the first case section 20, and the filter section 40 is installed above and spaced apart from the inlet section 22, so that air can move uniformly over the entire area of ​​the filter section 40.

[0086] Meanwhile, a plurality of inlet holes 23 are formed in the inlet unit 22, and these inlet holes 23 may be installed in a diagonal line shape, or may be formed in an inequality shape with a bent center, if necessary. Also, in order to increase the flow rate of air flowing into the filter unit 40, various modifications are possible, such as additional inlet holes 23 being formed on the side of the housing unit 10 where the filter unit 40 is installed.

[0087] Meanwhile, the housing portion 10 can be modified into various shapes, for example, it can be made up of three or more members.

[0088] [Second case part] The second case part 30 is connected to the lower part of the first case part 20, and various modifications can be made within the technical concept of forming a space inside the second case part 30 in which electrical components including the battery 240 are installed.

[0089] At least one of the first case portion 20 and the second case portion 30 may be a cylindrical case. Both the first case portion 20 and the second case portion 30 may be cylindrical, or only the second case portion 30 may be cylindrical. Alternatively, if necessary, only the first case portion 20 may be cylindrical.

[0090] If the second case portion 30 is cylindrical and extends in the vertical direction, the user can easily grasp the outer periphery of the second case portion 30 and can easily place the second case portion 30 in a vehicle cup holder that has a groove portion with an approximately circular cross section.

[0091] Furthermore, when the first case portion 20 is cylindrical, the air passing through the inside of the first case portion 20 and moving upward can flow more smoothly by reducing the friction that occurs when the air comes into contact with the inside of the curved first case portion 20.

[0092] Meanwhile, an air flow path is formed inside the first case part 20, but no air flow path is formed inside the second case part 30. Therefore, even when the second case part 30 is placed in a cup holder or held in the user's hand, air can be smoothly inhaled and exhaled through the first case part 20, improving usability.

[0093] [Filter section] The filter unit 40 is installed inside the first case unit 20 and can be modified in various ways within the technical concept of purifying the air that has flowed into the inlet unit 22. The filter unit 40 according to one embodiment of the present invention may be formed in a cylindrical shape.

[0094] Since the first case part 20 is in the shape of a circular pipe, and the filter part 40 installed inside the first case part 20 is also in the shape of a cylinder 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.

[0095] The cross section of the filter unit 40 is formed in a circular shape, and has the largest area inside the first case unit 20. The filter unit 40 is manufactured in a cylindrical shape, and when the upper and lower ends of the fabric constituting the filter unit 40 are cut, pressure loss is minimized and the performance of the filter unit 40 can be maximized.

[0096] In addition, since the outer diameter of the filter section 40 is manufactured to be equal to or larger than the intake diameter of the bell mouth 132 through which air is drawn into the fan module section 70, the volume of the filter section 40 can be maximized.

[0097] Furthermore, according to this embodiment, the filter unit 40, the fan module unit 70, and the discharge unit 140 are arranged in the vertical direction along the housing unit 10, and air flow can also occur in the same vertical direction. In other words, the air flow caused by the operation of the fan module unit 70 can occur in a linear direction that is the same as the arrangement direction of the filter unit 40, the fan module unit 70, and the discharge unit 140.

[0098] In this way, when air flows in a straight line, resistance to the air flow is reduced and the air flows more smoothly, allowing the fan module 70 to draw in a sufficient amount of air and discharge a correspondingly sufficient amount of air, thereby improving the air purification performance of the portable air purifier 1.

[0099] [Fan module section] The fan module unit 70 is located between the filter unit 40 and the exhaust port 24, and various modifications are possible within the technical concept of rotating the fan to blow air in the direction toward the exhaust port 24.

[0100] FIG. 8 is an oblique view showing the discharge section and the rotation support section according to one embodiment of the present invention, FIG. 9 is an exploded oblique view of the fan module section according to one embodiment of the present invention, FIG. 10 is a plan view of the fan module section according to one embodiment of the present invention, FIG. 11 is a bottom view of the fan module section according to one embodiment of the present invention, and FIG. 12 is a cross-sectional view of the fan module section according to one embodiment of the present invention.

[0101] 8 to 12, when the fan module unit 70, which is a circular mixed-flow fan module, is applied, it matches or corresponds to the inner shape of the cylindrical first case unit 20, so the shape of the first case unit 20 does not need to be increased by fixing or fastening the fan module unit 70, making it possible to make the product more compact. Also, 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 embodied so that it fits within a cup holder.

[0102] In addition, a top-discharge type compact air purifier that maximizes airflow performance can be provided by applying a circular mixed-flow fan module to the fan module unit 70. The fan type of the fan module unit 70 is a mixed-flow fan, and the internal structure of the fan module unit 70 is modified to allow the mixed-flow fan to be installed.

[0103] The fan member 90 according to the present invention is rotated by the operation of a motor. Only the rotating shaft of the motor that rotates the fan member 90 may be connected to the fan member 90, and a rotor may be installed in the fan member 90, with a stator installed in the fan housing 80, which is restricted from rotating. As the magnetic field of the stator changes, a shaft that rotates together with the rotor is connected to the fan member 90, and the rotor and fan member 90 can rotate around the stator. The configuration of the motor that rotates the fan member 90 is well known, so a detailed description thereof will be omitted.

[0104] The fan module portion 70 according to one embodiment of the present invention may include a fan housing 80, a fan member 90, and a fan base 130.

[0105] [Fan housing] The fan housing 80 is fixed to the inside of the first case portion 20, and various modifications are possible within the technical concept of providing a space inside for rotating the fan member 90. 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 base 82, an electric wire guide 83, a side support portion 84, an inner guide portion 85, and a protruding boss 86.

[0106] The support plate 81 has a disk shape and has a hole 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. The support plate 81 is located below the core member 310.

[0107] The connecting support 82 extends outward from the support plate 81 and is connected to the side support portion 84. According to an embodiment of the present invention, a plurality of connecting support portions 82 may be provided and installed in a rod shape. The connecting support portions 82 extending radially outward from the support plate 81 may be connected to the side support portion 84.

[0108] According to an embodiment of the present invention, the connecting support 82 is located below the core support 350 of the rotation support 300. Four connecting supporters 82 are installed at 90-degree intervals around the support plate 81, and the core support 350 is installed above and facing the connecting supporters 82.

[0109] The wire guides 83 are installed one after the other on the connection support base 82 and support the lower part of the wire 600 so that the wire 600 of the electronic device moves along the side of the connection support base 82. The wire guides 83 are protrusions located on the lower part of the side of the connection support base 82 and guide the wire 600 of the motor installed on the support plate 81 so that it extends to the outside of the fan housing 80. The wire guides 83 are installed on the side of the connection support base 82 and may form grooves in which the wire 600 is arranged. Therefore, the wire 600 installed in the wire guides 83 is placed in the grooves located on the side of the connection support base 82 and its lower part is supported by the wire guides 83, preventing damage to the wire 600.

[0110] The side support part 84 is a cylindrical pipe shape that is open on the top and bottom. The outside of the side support part 84 contacts the inside of the housing part 10, and the inside of the side support part 84 is connected to the connecting support base 82.

[0111] The inner guide portion 85 forms an inclined surface that is installed sloping downward radially inward from the lower side of the side support portion 84. The inner guide portion 85 is formed inside the side support portion 84 and can prevent a swirling wind phenomenon in which air blown upward by the fan member 90 moves toward the inlet of the fan member 90 through the outer surface of the fan member 90.

[0112] The protruding boss 86 extends from the lower end of the side support part 84 and has a groove for receiving the coupling protrusion 134 of the fan base 130, which will be described later. Various modifications are possible within the technical concept. According to one embodiment of the present invention, a plurality of protruding bosses 86 are installed along the circumferential direction of the side support part 84.

[0113] [Fan parts] The fan member 90 is rotatably installed inside the fan housing 80 and can be modified in various ways within the technical concept of moving air in a direction toward the discharge portion 140.

[0114] Although a mixed flow fan may be used as the fan member 90, 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 a hub 100, fan blades 110, and / or a shroud 120.

[0115] 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, and FIG. 17 is a cross-sectional view of a fan member according to one embodiment of the present invention.

[0116] As shown in FIGS. 13 to 17, the hub 100 is located at the center of the fan housing 80 and can be modified in various ways within the technical concept of being rotated by receiving external power.

[0117] The hub 100 is disposed at the radial center of the fan member 90 and can rotate together with the rotor constituting the motor and the shaft serving as 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 105, and a skirt portion 107.

[0118] The hub plate portion 101 may be formed in a circular plate shape parallel to the support plate 81. The hub plate portion 101 may be provided with a shaft coupling portion 102. The shaft coupling portion 102 may be disposed at the center of the hub plate portion 101 in the radial direction. The shaft coupling portion 102 may be formed to protrude from the upper and lower sides of the hub plate portion 101.

[0119] The shaft coupling part 102 may be coupled to an axial end of a shaft that transmits rotational power. For example, the shaft coupling part 102 and the shaft may be coupled together in a manner in which the shaft is sandwiched between the shaft coupling part 102.

[0120] 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 from the shaft coupling part 102 as the center, forming band-shaped protrusions on the outside of the shaft coupling part 102. Therefore, stress concentrated on the shaft coupling part 102 is dispersed via the first reinforcing protrusions 103, thereby reinforcing the structural rigidity of the shaft coupling part 102.

[0121] The inner protrusion 105 may protrude from the hub plate 101 toward the upper portion where the support plate 81 is installed. The inner protrusion 105 according to one embodiment of the present invention is installed in an arc direction along the outer edge of the hub plate 101. The inner protrusion 105 has a pipe shape that extends in the vertical direction.

[0122] In addition, second reinforcing protrusions 106 are installed at set intervals along the inner circumference of the inner protrusion 105. The second reinforcing protrusions 106 are installed in a first direction along the inner surface of the inner protrusion 105, and the lower sides of the second reinforcing protrusions 106 form band-shaped protrusions extending toward the shaft coupling portion 102. Therefore, stress concentrated on the inner protrusion 105 is dispersed via the second reinforcing protrusions 106, thereby reinforcing the structural rigidity of the inner protrusion 105. If necessary, a rotor of a motor unit can be fixed inside the inner protrusion 105.

[0123] The skirt portion 107 may protrude upward from the edge of the hub plate portion 101 toward the support plate 81. The skirt portion 107 may form an inclined surface that slopes outward in the second direction the further it is from the hub plate portion 101 in the first direction. The skirt portion 107 is located outside the inward protrusion 105, and the inner diameter of the skirt portion 107 gradually increases from the bottom to the top.

[0124] For example, the shape of the hub plate portion 101 and the skirt portion 107 connected together may be a truncated cone shape with a hollow interior and one open side. The skirt portion 107 may be funnel-shaped with an open top and a closed bottom by the hub plate portion 101.

[0125] The shroud 120 is annularly connected to the end of the fan blade 110 and can be separated from the fan base 130 in various ways within the technical concept.

[0126] The shroud 120 is installed along the outer periphery of the skirt portion 107, and the shroud 120 and the skirt portion 107 are connected by the fan blades 110. In addition, the outer diameter of the hub 100 and the inner diameter of the shroud 120 may gradually decrease from the top to the bottom.

[0127] The shroud 120 may be disposed radially outward of the hub 100 at a predetermined radial distance. The shroud 120 may also be spaced apart from the hub 100 by a distance corresponding to the radial length of the fan blades 110. Each fan blade 110 may be connected between the shroud 120 and a skirt portion 107 provided on the hub 100.

[0128] The shroud 120 can form an inclined surface that is approximately parallel to the skirt portion 107. In this embodiment, the distance between the skirt portion 107 and the shroud 120 increases toward the upper side of the shroud 120, and this is exemplified as an arrangement of the skirt portion 107 and the shroud 120.

[0129] The inlet protrusion 121 provided on the underside of the shroud 120 is a ring-shaped protrusion that extends in a first direction from the underside of the funnel-shaped shroud 120. Because the inlet protrusion 121 is located inside a bell mouth 132 (described later), it is possible to prevent swirling movement of air flowing along the outside of the shroud 120 into the inlet provided on the underside of the shroud 120.

[0130] A plurality of fan blades 110 may be provided and arranged at equal intervals along the outer circumferential surface of hub 100. The fan blades 110 protrude outward from hub 100, and extend in a spiral pattern. Alternatively, the plurality of fan blades 110 may be arranged at predetermined intervals along the circumferential direction of hub 100.

[0131] The fan blades 110 according to one embodiment of the present invention may protrude outward from the skirt portion 107 in a centrifugal direction that extends spirally from the center of the shaft coupling portion 102. 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 blades 110 may be connected to the skirt portion 107, and the radially outer side of the fan blades 110 may be connected to the shroud 120, which will be described later.

[0132] The skirt portion 107 is a portion of the hub 100 that is directly connected to the fan blades 110 and is in direct contact with the air passing through the fan blades 110. The skirt portion 107 may also be closely related to the air flow path that passes through the fan module portion 70.

[0133] Each fan blade 110 connecting between shroud 120 and skirt 107 may include a first end 111 , a second end 112 , a first edge 113 , and a second edge 114 .

[0134] The first end 111 may be formed as a straight line extending in the radial direction and disposed at the tip of the rotation direction of the fan blade 110. The rotation direction is defined as the direction in which the fan member 90 rotates.

[0135] The second end 112 may be disposed at the rear end of the fan blade 110 in the rotational direction and may be formed radially from the shaft coupling portion 102 as the center.

[0136] The first edge 113 may connect one end of the first end portion 111 and one end of the second end portion 112. The first edge 113 may be connected to an inner circumferential surface of the shroud 120.

[0137] The second edge 114 may connect the other end of the first end 111 and the other end of the second end 112. The second edge 114 may be connected to the outer circumferential surface of the hub 100.

[0138] That is, one end of the first end portion 111 and one end of the second end portion 112 may be connected to the inner circumferential surface of the shroud 120. The other end of the first end portion 111 and the other end of the second end portion 112 may be connected to the outer circumferential surface of the skirt portion 107.

[0139] One end of the first end 111 may be positioned closer to the radial center of the hub plate portion 101 than one end of the second end 112. The other end of the second end 112 may be positioned closer to the radial center of the hub plate portion 101 than the other end of the first end 111. This is because one and the other ends of the first end 111 are positioned further forward in the rotational direction than one and the other ends of the second end 112, and the skirt portion 107 is formed in a shape in which the radius becomes smaller as it goes further forward in the rotational direction.

[0140] According to this embodiment, the fan blades 110 are connected to the skirt portion 107 of the hub 100. The skirt portion 107 forms an inclined surface in an upward direction to guide the airflow entering the fan module portion 70 in an upward inclined direction.

[0141] [Fanbase] As shown in FIG. 9, the fan base 130 is coupled to the underside of the fan housing 80 and guides the air that has passed through the filter unit 40 into the fan member 90. Various modifications are possible within the technical concept.

[0142] The fan base 130 may be disposed between the filter unit 40 and the fan member 90. The edge of the fan base 130 may be shaped to correspond to the edge of the filter unit 40. For example, when the filter unit 40 is cylindrical and the edge of the filter unit 40 is circular, the fan base 130 may be disposed in the shape of a hollow ring.

[0143] The base plate 131 may be disposed between the filter unit 40 and the fan member 90. The base plate 131 is a plate extending in an annular shape, and has a hollow space in the center for air movement.

[0144] The bell mouth 132 is disposed in an annular shape on the inner side of the base plate 131 facing the hollow. The bell mouth 132 has a concave vertical cross section that surrounds the lower side of the inlet projection 121 of the shroud 120, and extends along the circumferential direction.

[0145] The bell mouth 132 may be formed to surround a hollow outer circumferential surface formed in the center of the base plate 131. The bell mouth 132 may be formed to be convex downward and have a concave groove formed upward.

[0146] At least a portion of the bell mouth 132 can be inserted radially inside the shroud 120. The bell mouth 132 can contribute to improving the intake and discharge performance of the fan module section 70 by guiding the intake flow at the inlet of the fan module section 70.

[0147] The coupling protrusion 134 protrudes from the upper side of the base plate 131 and is fitted into the groove of the protruding boss 86 provided on the fan housing 80 to fix the fan base 130 to the lower side of the fan housing 80 .

[0148] The connection between the coupling protrusions 134 and the protruding bosses 86 allows the fan base 130 and the fan housing 80 to be connected at multiple points. When the fan base 130 and the fan housing 80 are connected in this manner, the fan member 90 can be rotatably installed between the fan base 130 and the fan housing 80.

[0149] The protruding rib 133 may protrude from the base plate 131 and be disposed radially outward of the bellmouth 132. According to one embodiment of the present invention, the protruding rib 133 is located radially outward of the bellmouth 132 and is disposed in a ring shape surrounding the outer periphery of the bellmouth 132. The protruding rib 133 may also 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.

[0150] Furthermore, the protruding rib 133 may be installed at an equal angle 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 manner that forms an inclined surface. The inclined surface of the protruding rib 133 may be spaced apart from the shroud 120 by a set distance and formed as an inclined surface parallel to the inclined surface of the shroud 120.

[0151] In addition, the inclined surface of the protruding rib 133 may have the same inclination angle as the inclined surface of the inner guide portion 85 of the fan housing 80. This prevents a swirling wind phenomenon in which a portion of the air moving 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.

[0152] [Another example of a fan module] FIG. 18 is a perspective view showing a fan module unit 370 according to another embodiment of the present invention, and FIG. 19 is an exploded perspective view of the fan module unit 370 according to another embodiment of the present invention.

[0153] 18 and 19, the outer shape of the fan module unit 370 may be rectangular. In addition, a circular mixed flow fan module is applied inside the fan module unit 370, thereby providing a top-discharge type compact air purifier that can maximize flow performance. The fan module unit 370 according to another embodiment of the present invention may include a fan housing 380, a fan member 90, and a fan base 430.

[0154] [Fan housing] The outer shape of the fan housing 380 may be modified in various ways within the technical concept, including a rectangular shape. The fan housing 380 according to an embodiment of the present invention may include at least one of a support plate 381, a connecting support base 382, ​​an electric wire guide 383, a side support portion 384, an inner guide portion 385, and a protruding boss 386.

[0155] The support plate 381 has a disk shape and has a hole 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 a first direction.

[0156] The connecting support 382 extends outward from the support plate 381 and is connected to the side support portion 384. According to an embodiment of the present invention, a plurality of connecting support portions 382 may be provided and installed in a rod shape. The connecting support portions 382 extending radially outward from the support plate 381 may be connected to the side support portion 384.

[0157] The wire guides 383 are installed on the connection support 382 and support the lower part of the wire 600 so that the wire 600 of the electronic device moves along the side of the connection support 382. The wire guides 383 are protrusions located on the lower part of the side of the connection support 382 and guide the wire 600 of the motor installed on the support plate 381 so that it extends to the outside of the fan housing 380. The wire guides 383 are installed on the side of the connection support 382 to form a groove in which the wire 600 is arranged. Therefore, the wire 600 installed in the wire guide 383 is placed in the groove located on the side of the connection support 382 and its lower part is supported by the wire guide 383, preventing damage to the wire 600.

[0158] The side support part 384 has a rectangular frame shape with upper and lower openings. The outside of the side support part 384 is rectangular frame-shaped, and the inside of the side support part 384 forms a passage through which air moves, forming a rectangular or circular inner space.

[0159] The inner guide portion 385 forms an inclined surface that is installed sloping downward radially inward from the lower side of the side support portion 384. The inner guide portion 385 is formed inside the side support portion 384 and can prevent a swirling wind phenomenon in which air blown upward by the fan member 90 moves toward the inlet of the fan member 90 through the outer surface of the fan member 90.

[0160] The protruding bosses 386 extend from the lower ends of the side support portions 384 and may be modified in various ways within the technical concept of providing grooves into which the coupling protrusions 134 of the fan base 430, which will be described later, are inserted. The protruding bosses 386 according to one embodiment of the present invention are installed at each corner of the side support portions 384.

[0161] The fan member 90 is a mixed flow fan, and as the explanation of this has been given above, a detailed explanation will be omitted.

[0162] [Fanbase] The rectangular fan base 430 is coupled to the underside of the rectangular fan housing 380 and guides the air that has passed through the filter unit 40 into the fan member 90. Various modifications are possible within the technical concept.

[0163] The edge shape of the fan base 430 may be formed to correspond to the edge shape of the fan housing 380. For example, if the fan housing 380 is square, the fan base 430 may be installed in the shape of a hollow square plate.

[0164] The base plate 431 is a rectangular plate with a hollow space in the center for air movement.

[0165] The bell mouth 432 is annularly installed on the inside of the base plate 431 facing the hollow. The bell mouth 432 has a concave longitudinal cross section that surrounds the lower side of the inlet protrusion 121 provided on the shroud 120 and extends in the circumferential direction. The bell mouth 432 may be formed in a shape that surrounds the outer circumferential surface of the hollow formed in the center of the base plate 431. The bell mouth 432 may be formed convexly downward and have a concave groove formed upward.

[0166] The coupling protrusions 434 protrude from the upper side of the base plate 431 and are fitted into grooves of protruding bosses 386 provided on the fan housing 380 to fix the fan base 430 to the underside of the fan housing 380. The coupling between the coupling protrusions 434 and the protruding bosses 386 allows the fan base 430 and the fan housing 380 to be coupled at multiple points. When the fan base 430 and the fan housing 380 are coupled in this manner, the fan member 90 can be rotatably installed between the fan base 430 and the fan housing 380.

[0167] [Discharge part] FIG. 3 is a cross-sectional view showing a state in which the discharge unit 140 according to one embodiment of the present invention is 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 and the rotation support unit 300 according to one embodiment of the present invention.

[0168] 3 to 6, the discharge part 140 is located at the outlet 24 of the housing part 10, and is rotatably installed on the rotation support part 300, and various modifications are possible within the technical concept of guiding the direction of exhaust of air that has passed through the fan module part 70. The discharge part 140 according to the present invention is rotatably installed on a spherical ball joint 360 provided on the rotation support part 300, and therefore, can smoothly rotate.

[0169] The outlet part 140 installed on the upper side of the housing part 10 opens in the vertical direction and is rotatably connected to the rotation support part 300, thereby adjusting the direction in which air is discharged after passing through the fan module part 70. The outlet part 140 according to an embodiment of the present invention may include an outlet body part 141, a first support part 180, and a second support part 190.

[0170] [Discharge body] The discharge body portion 141 is located at the discharge port 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.

[0171] [First discharge section] The first discharge part 150 is located on one side (upper side in FIG. 3) of the ball joint 360 and includes a plurality of vanes 156 for guiding the discharged air. Various modifications are possible within the technical concept of the first discharge part 150. The first discharge part 150 according to one embodiment of the present invention may include a first discharge core 152, a first discharge body 154, and the vanes 156.

[0172] The first discharge core 152 is located above the ball joint 360 and may be formed in various shapes, including a disk shape. The first discharge body 154 may be spaced apart from the first discharge core 152 and installed in an annular shape surrounding the outside of the first discharge core 152. The outside of the first discharge body 154 has a curved surface 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.

[0173] Furthermore, 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.

[0174] [Second outlet section] The second discharge part 160 is located on the other side of the ball joint 360 (the lower side in FIG. 3), is connected to the first discharge part 150, and rotates together with the first discharge part 150 around the ball joint 360. Various modifications are possible within the technical concept. The second discharge part 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 part 163.

[0175] The second discharge core 161 is coupled to the first discharge core 152 via the core mounting portion 170. The second discharge core 161 forms a concave groove portion facing downward, and a first support portion 180 and a second support portion 190 that surround the ball joint 360 are located inside the second discharge core 161.

[0176] The second discharge body 162 is spaced apart from the second discharge core 161 and is disposed in a ring shape surrounding the outside of the second discharge core 161. The outside of the second discharge body 162 is curved and disposed apart from the housing part 10, so that the second discharge part 160 can be prevented from coming into contact with the housing part 10 when it rotates.

[0177] Furthermore, since the second discharge core 161 and the second discharge body 162 are connected by a plurality of discharge core support parts 163, the second discharge core 161, the second discharge body 162, and the discharge core support parts 163 can all rotate.

[0178] [Core mounting part] A core mounting unit 170 may be provided between the first outlet unit 150 and the second outlet unit 160 to receive an operation signal from the first outlet unit 150 or to display the operating status of the portable air purifier 1 via the first outlet unit 150. The core mounting unit 170 according to an embodiment of the present invention includes a touch panel 171 that is provided below the first outlet core 152 and receives an operation signal from a user via the first outlet core 152, a display 172 that is located below the touch panel 171 and includes a PCB that provides image information in a direction toward the first outlet 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 outlet unit 150.

[0179] [First support part] The first support part 180 is connected to the discharge body part 141 or is formed integrally with the discharge body part 141, and includes a recessed first curved groove 182. Various modifications are possible within the technical concept. The first curved groove 182 is disposed in a shape surrounding the upper side of the spherical ball joint 360. The first support part 180 according to one embodiment of the present invention may include a first support body 181 and a first wing member 183.

[0180] The first support body 181 has a recessed first curved groove 182 formed on its inside and is fixed to the center of the discharge body part 141. The first support body 181 according to an embodiment of the present invention is coupled to the underside of the second discharge part 160. The first support body 181 is inserted below the second discharge core 161 provided in the second discharge part 160 and fixed to the inside of the second discharge core 161.

[0181] The first wing member 183 may include a first wing member 183 that extends outside the first support body 181 and faces the second support portion 190. The first wing member 183 and the second support portion 190 may be fixed together by fastening a fastening member 195, and the first wing member 183 and the second support portion 190 may be coupled with a gap therebetween.

[0182] The first wing member 183 may be a plate extending along an arc, and the first support body 181 may be a cylinder protruding upward from the center of the first wing member 183, with a first curved groove 182 formed on the inside of the first support body 181 and an open shape on the bottom.

[0183] [Second support part] The second support part 190 is coupled to the first support part 180 and has a second curved groove 192 formed therein that is connected to the first curved groove 182. The second curved groove 192 may be disposed in a shape that surrounds the spherical side surface and a portion of the lower side of the ball joint 360.

[0184] The second support part 190 according to an embodiment of the present invention may include a second support body 191 that is provided with a hollow part 193 that is connected in the vertical direction and that is installed in the circumferential direction. A second curved groove 192 may be formed on the inner side of the second support body 191 that faces the hollow part 193.

[0185] The initial position of the outlet 140 is defined as a position where the upper side of the outlet 140 is positioned horizontally and the air passing through the outlet 140 moves upward. When the outlet 140 is in the initial position, the inner diameter of the lower end of the second curved groove 192 is smaller than the maximum outer diameter of the ball joint 360. Therefore, since the second support 190 is fixed to the first support 180 by being coupled to the lower side of the ball joint 360, the second support 190 supports the ball joint 360 in a shape that surrounds it, thereby preventing the ball joint 360 from detaching outside the second support 190.

[0186] FIG. 21 is a view showing a state in which a ball joint 360 according to an embodiment of the present invention is installed between a first support part 180 and a second support part 190. As shown in FIG.

[0187] 21, the friction force between the first support 180 and the ball joint 360 is F1, and the friction force between the second support 190 and the ball joint 360 is F2. When the separation distance between the first support 180 and the second support 190 is D, F1 and F2 are inversely proportional to D.

[0188] That is, the friction force between the first support part 180 and the ball joint 360 and the friction force between the second support part 190 and the ball joint 360 may be inversely proportional to the separation distance between the first support part 180 and the second support part 190, which are disposed in a shape facing each other via the ball joint 360. If D is large, F1 and F2 become small, and if D is small, F1 and F2 become large.

[0189] Therefore, after the discharge part 140 rotates around the ball joint 360, it must maintain the rotated state. If the discharge part 140 cannot maintain the rotated state, the fastening state of the fastening member 195 is adjusted to decrease D, thereby increasing F1 and F2. If F1 and F2 increase and the discharge part 140 does not rotate smoothly, the larger D becomes, the more the fastening member 195 is adjusted to decrease F1 and F2.

[0190] When the rotation direction of the discharge part 140 is manually adjusted, the discharge part 140 can be easily rotated, and the phenomenon of the discharge part 140 shaking after rotation is prevented, thereby improving the operational reliability of the discharge part 140.

[0191] 6, the first support part 180 has a first curved groove 182 that forms a concave groove toward the bottom, and the second support part 190 has a second curved groove 192 that forms a concave groove along the inner periphery of the second support body 191 that faces 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 surrounds the side and part of the bottom of the ball joint 360. Therefore, the first support part 180 and the second support part 190 rotate around the ball joint 360.

[0192] The second support part 190 is fixed to the first support part 180 by a fastening member 195, and the first support part 180 is fixed to the discharge body part 141. Thus, the discharge body part 141, the first support part 180, and the second support part 190 form a single module and can rotate around the ball joint 360.

[0193] [Sterilization Department] 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 sterilizing 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 receiving unit 220, and an irradiating unit 230.

[0194] [Sterilization support part] The sterilization support part 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. In addition, the sterilization support part 210 is located below the irradiation part 230, and is connected to the housing part 10, so various modifications are possible within the technical concept of being restricted in movement.

[0195] The air that flows into the inside of the first case part 20 through the inlet part 22 is prevented from moving to the second case part 30 by the sterilization support part 210, and the air flow rate moving to the fan module part 70 increases, thereby improving the air purification performance of the portable air purifier 1.

[0196] The receiving part 220 protrudes upward from the center of the sterilization support part 210 and can be modified in various ways within the technical concept of supporting the lower part of the irradiation part 230. In addition, the receiving part 220 is located at the center of the inlet part 22 in the radial direction, and the cross section of the receiving part 220 is circular, which can reduce friction with air.

[0197] The receiving portion 220 may be a columnar shape that protrudes upward from the center of the sterilization support portion 210. The receiving portion 220 may also be cylindrical or conical. The receiving portion 220 according to one embodiment of the present invention has a shape in which the cross section gradually tapers from the bottom to the top, and is located in the center of the first case portion 20 where the inlet portion 22 is formed, thereby minimizing friction with the air.

[0198] The sterilization support part 210 installed to sterilize the filter part 40 has a circular cross section, and the air flowing in through the inlet part 22 rotates spirally due to the inclined shape of the inlet hole 23, rotates around the outside of the receiving part 220, and moves to the upper side where the filter part 40 is installed. That is, the sterilization part 200 is located in the center of the first case part 20, and the air flowing in through the inlet part 22 moves around the outer periphery of the sterilization part 200 and moves upward, so the flow resistance of the sterilization part 200 is reduced.

[0199] Since the receiving portion 220, the center of rotation of the fan member 90, and the core member 310 of the rotation support portion 300 described later are positioned in a vertical line, resistance to the air flow moving from the bottom to the top is reduced, and the air flow is smoother, improving the air purification performance of the portable air purifier 1.

[0200] The irradiation unit 230 is attached to the upper side of the receiving unit 220 and can irradiate sterilizing light in a direction toward the filter unit 40. In addition, the irradiation unit 230 can be located on a vertical reference line that passes through the radial center of the inlet unit 22 in the up-down direction. Therefore, when the filter unit 40 is located above the irradiation unit 230, the entire lower end area of ​​the filter unit 40 can be sterilized with a relatively small number of sterilizing light sources 232, thereby reducing production costs and maintenance and repair costs.

[0201] Furthermore, various modifications can be made within the technical concept of irradiating unit 230, such as being installed at a position higher than or at the same position as the upper end of inlet unit 22. The irradiating unit 230 according to one embodiment of the present invention may include a printed circuit board 231 and a sterilizing light source 232. The printed circuit board 231 is installed above the receiving unit 220, and the sterilizing light source 232 that irradiates sterilizing light is installed above the printed circuit board 231. The sterilizing light source 232 may be a UVC LED, or various other types of sterilization devices may be used within the technical concept of sterilizing bacteria in filter unit 40.

[0202] On the other hand, since the sterilizing light source 232 of the sterilizing unit 200 is located above the entrance 22, the sterilizing light source 232 can be prevented from irradiating the outside of the first case unit 20 through the entrance 22.

[0203] [Rotation support part] FIG. 7 is a cross-sectional view of a rotation support part 300 according to one embodiment of the present invention, FIG. 8 is a perspective view showing a discharge part 140 and a rotation support part 300 according to one embodiment of the present invention, and FIG. 20 is a plan view showing a core support part 350 according to one embodiment of the present invention.

[0204] 6 to 8 and 20, the rotation support unit 300 is connected to the housing unit 10 to restrict its movement, and rotatably supports the discharge unit 140 located at the outlet 24 of the housing unit 10. One side of the rotation support unit is connected to the housing unit 10, and the other side has a rotating unit installed at a position facing the first curved groove 182 and the second curved groove 192, which rotatably supports the first support unit 180 and the second support unit 190. The rotation support unit 300 according to one embodiment of the present invention includes a core member 310, a core support unit 350, and a ball joint 360.

[0205] [Core member] The core member 310 may be located below the outlet 140, which adjusts the air discharge direction, and extend from the center of the outlet 24 toward the outlet 140. The core member 310 may also be located below the second support 190, and extend from the center of the outlet 24 toward the second support 190 to support the ball joint 360. The core member 310 has a curved outer surface, and its cross-sectional area gradually decreases from the lower side connected to the core support 350 toward the ball joint 360, thereby minimizing air resistance moving from the bottom to the top.

[0206] The core member 310 may be conically disposed, with a cross-sectional area gradually decreasing toward the top. The core member 310 according to an embodiment of the present invention may include a core base 312, a core body 314, and a core connecting portion 320.

[0207] 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 has a pipe shape that extends in the vertical direction.

[0208] The core body 314 may extend above the core base 312 and have a conical shape with open top and bottom sides.

[0209] The core connecting part 320 may be modified in various ways within the technical concept of forming a space for installing the position indicating part 500 inside the core body 314 and a space for connecting the ball joint 360. The core connecting part 320 according to an embodiment of the present invention may include a joint seating part 330 and an inner fastening support part 340.

[0210] The joint seating part 330 forms a space for coupling the ball joint 360 through the upper side of the core body 314. The joint seating part 330 according to an embodiment of the present invention includes a curved surface support part 332 that forms a concave curved surface on the upper side of the core body 314 facing the ball joint 360, on which the outer side of the ball joint 360 is seated, and a joint connection hole 334 that forms a hole at the upper end of the core body 314 for installing the ball joint 360.

[0211] The inner fastening support part 340 extends inside the core body 314 and supports the ball joint 360 and the first adjustment bolt 520 of the position indicator 500. Various modifications are possible within the technical concept of the inner fastening support part 340. The inner fastening support part 340 according to one embodiment of the present invention includes a first fastening support part 342 that extends inside the core body 314 and forms a hole through which the body of the first adjustment bolt 520 passes, and a second fastening support part 344 that is located above the first fastening support part 342 and surrounds the outside of the mounting protrusion 369 that extends below the ball joint 360.

[0212] [Core support] The core support portion 350 extends outside the core member 310, is fixed inside the housing portion 10, and is constrained from moving together with the core member 310. Various modifications are possible within the technical concept. The core support portion 350 according to one embodiment of the present invention may include a first core support portion 352, a second core support portion 354, and a connecting base 356.

[0213] The first core support part 352 is connected to the lower part of the core member 310 and installed in a ring shape. The core base 312 is connected to the inside of the first core support part 352, and the ring-shaped second core support part 354 is installed on the outside and spaced apart from the first core support part 352. The second core support part 354 may be fixed to the housing part 10 by a snap fit or by various fixing methods, such as by being fixed with bolts, etc., so that its movement can be restricted.

[0214] Furthermore, the first core support 352 and the second core support 354 may be connected by a connecting block 356. The connecting block 356 may be installed in a spiral or radial shape around the first core support 352. Since the first core support 352 according to an embodiment of the present invention is installed in a spiral shape along the direction of the air discharged from the fan module unit 70, it is possible to reduce the frictional resistance when the connecting block 356 comes into contact with the air.

[0215] [Ball joint] Ball joint 360 is connected to core member 310 and can be modified in various ways within the technical concept of rotatably supporting discharge part 140. The lower side of ball joint 360 is connected to core member 310 and is restricted in movement. The upper side of ball joint 360 is inserted into discharge part 140 and rotatably supports discharge part 140. The upper side of ball joint 360 according to one embodiment of the present invention is positioned inside first curved groove 182 and second curved groove 192 and rotatably supports first support part 180 and second support part 190.

[0216] Ball joint 360 is spherical and located inside the spherical groove formed by first curved groove 182 and second curved groove 192, and the outer diameter of ball joint 360 is larger than the inner diameter of the lower end of second curved groove 192, thereby preventing ball joint 360 from detaching outside second support part 190.

[0217] The end of ball joint 360 is spherical and is positioned inside discharge part 140 to rotatably support discharge part 140. The upper side of ball joint 360 is spherical, and a plate-shaped mounting protrusion 369 extending downward from the upper side of the sphere is inserted into and fixed to the inside of core member 310 through joint connection hole 334 located on the upper side of core member 310. Ball joint 360 and core member 310 can be fixed to each other using various fixing methods, such as screw fastening, pin fastening, or adhesive.

[0218] Ball joint 360 according to one embodiment of the present invention includes a joint body 362 and a mounting protrusion 369. Joint body 362 is formed in a spherical shape, and a first mounting hole 363 and a second mounting hole 364 are formed inside joint body 362. First mounting hole 363 forms a groove on the outside of joint body 362 to which guide protrusion 410 of rotation guide part 400 is fastened.

[0219] In addition, 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 at the center of the joint body 362 and forms a hole into which the indicating protrusion 510 of the position indicating unit 500 is installed. According to an embodiment of the present invention, the second mounting hole 364 includes a small diameter hole 368 that forms a hole extending from the upper end of the ball joint 360 toward the inside 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 extending downward. The inner diameter of the large diameter hole 366 is larger than the inner diameter of the small diameter hole 368. Therefore, the moving head 512 of the moving protrusion 511 of the position indicating unit 500 is located inside the large diameter hole 366, and the moving head 512 of the moving protrusion 511 can protrude upward to the ball joint 360 through the small diameter hole 368.

[0220] The mounting protrusion 369 has a pipe shape extending below the joint body 362, and the inner elastic member 530 of the position indicating part 500 is installed inside the mounting protrusion 369. The mounting protrusion 369 is inserted into the core member 310 through the joint connecting hole 334 and is positioned inside the second fastening support part 344. The mounting protrusion 369 is simply inserted into the second fastening support part 344, and a screw thread is formed inside the mounting protrusion 369, so that the first adjustment bolt 520 may be fastened inside the mounting protrusion 369.

[0221] Alternatively, a screw thread may be formed on the outer side of the mounting protrusion 369 and the inner side of the second fastening support 344 so that the mounting protrusion 369 is fastened to the second fastening support 344 .

[0222] [Rotation guide] The rotation guide unit 400 is installed on the discharge unit 140 and the rotation support unit 300, respectively, and various modifications are possible within the technical concept of guiding the rotation of the discharge unit 140 so that the discharge unit 140 rotates within a set angle. The rotation guide unit 400 according to one embodiment of the present invention includes a guide protrusion 410 and a guide groove 420.

[0223] The guide protrusion 410 is connected to the ball joint 360 or is integral with the ball joint 360 and is a protrusion-like structure that protrudes outward from the ball joint 360. The guide protrusion 410 according to one embodiment of the present invention is bolt-shaped and may include a locking head 411 that engages with the outer side of the ball joint 360 and a fastening body 412 that extends from the locking head 411 and fastens to the inner side of the ball joint 360. The fastening body 412 is fastened to the first mounting hole portion 363.

[0224] The guide groove portion 420 may be modified in various ways within the technical concept of providing a recessed groove on the inner side of the discharge portion 140 facing the guide protrusion 410. The guide groove portion 420 according to an embodiment of the present invention may be installed on at least one of the first support portion 180 and the second support portion 190 facing the ball joint 360. The guide groove portion 420 may also be formed on each of the first support portion 180 and the second support portion 190. A first groove portion 421 is formed on the inner side of the first support portion 180 located on the movement path of the guide protrusion 410, and a second groove portion 422 is formed on the inner side of the second support portion 190.

[0225] 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 420 based on the center of the joint body 362 is 30 degrees. If the rotation angle of the discharge part 140 is changed, the angle between one end and the other end of the guide groove 420 based on the center of the joint body 362 also changes. Therefore, the guide protrusion 410 is inserted into the inside of the guide groove 420, and the guide protrusion 410 engages with the inside of the guide groove 420, so that rotation of the discharge part 140 beyond the set angle can be restricted.

[0226] [Location notification section] The position indicator 500 can be modified in various ways within the technical concept of providing a sense of operation by engaging with the discharge unit 140 when the discharge unit 140 is in the set position. The set position of the discharge unit 140 is set to the initial position where air that has passed through the discharge unit 140 is discharged upward, but is not limited to this, and various rotation positions of the discharge unit 140 can also be set as the set position.

[0227] The position indicator 500 according to an embodiment of the present invention may include an indicator protrusion 510 and an indicator groove 540 .

[0228] The indicator protrusion 510 includes a moving protrusion 511 that is pressed by an elastic force toward the outside of the ball joint 360, and various modifications are possible within the technical concept that the moving protrusion 511 protrudes outward from the ball joint 360 when the discharge part 140 is in a set position. The indicator protrusion 510 according to one embodiment of the present invention may include the moving protrusion 511, a first adjustment bolt 520, and an inner elastic member 530.

[0229] The moving protrusion 511 can be moved up and down along the second mounting hole 364 provided in the joint body 362. The moving protrusion 511 according to an embodiment of the present invention may be bolt-shaped and include a moving head 512 and a moving body 514. The moving head 512 is located inside the large diameter hole 366 and engages with a step provided between the large diameter hole 366 and the small diameter hole 368, thereby restricting its upward movement. A convex curved surface is formed on the upper end of the moving body 514 extending above the moving head 512.

[0230] The first adjustment bolt 520 may be fastened to the first fastening support portion 342 provided on the core member 310. The first adjustment bolt 520 may 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 a 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 portion 342.

[0231] The lower side of the inner elastic member 530 is supported by the first adjustment bolt 520, and the upper side supports the moving protrusion 511. The inner elastic member 530 according to an embodiment of the present invention uses a coil spring to press the moving protrusion 511 by elastic force.

[0232] The notification groove 540 may be modified in various ways within the technical concept of forming a groove inside the discharge part 140 facing the notification protrusion 510, into which the moving protrusion 511 is inserted. The notification groove 540 according to one embodiment of the present invention is formed in the first support part 180. The concave notification groove 540 is formed on the underside of the first support body 181, and when the discharge part 140 is in the initial position, the notification groove 540 is located in a position facing the moving protrusion 511. Therefore, the moving protrusion 511 is inserted inside the notification groove 540, providing the user with a sense of operation.

[0233] [Air flow of portable air purifier] An inlet section 22 for drawing in external air is installed along the outer periphery of the first case section 20, so that air outside the first case section 20 can be moved to the inside of the first case section 20 through the inlet section 22, thereby increasing the air intake flow rate.

[0234] By operating the fan module unit 70, the air outside the portable air purifier 1 flows into the portable air purifier 1. At this time, the air outside the portable air purifier 1 passes through the inlet hole 23 installed in an inclined shape, forming a spiral air flow that rotates around the outer circumference of the sterilization support unit 210.

[0235] The air that flows into the inside of the first case 20 and rises while rotating in a spiral passes through the filter unit 40, and in this process, 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 contained in the air are filtered out.

[0236] Since the filter unit 40 and the fan module unit 70 are vertically aligned, air intake and filtering can be performed effectively while minimizing flow loss.

[0237] The air that has passed through the filter unit 40, i.e., the purified air, can flow into the fan module unit 70. The air flow can be guided by the bell mouth 132, which can effectively guide the air to flow smoothly into the fan module unit 70.

[0238] The air that has flowed into the fan module unit 70 is discharged to the upper side of the fan module unit 70. The air discharged to the upper side of the fan module unit 70 may be discharged in a diagonal flow direction. Here, the diagonal flow direction may be defined as an upward diagonal direction.

[0239] Air drawn into the lower center of the fan module unit 70 flows upward through the discharge ports arranged in a ring shape along the inner edge of the fan module unit 70, and then flows upward through the spaces formed between the core support members 350 of the rotation support unit 300. That is, since a mixed flow fan is used in the fan module unit 70, air flowing into the lower part of the fan module unit 70 is discharged in an upwardly inclined direction, and the flow path direction coincides with the air movement path of the rotation support unit 300, thereby reducing flow path loss.

[0240] In this way, the air discharged to the upper side of the fan module section 70 , that is, the purified air, flows from the inside of the discharge section 140 to the lower side and is discharged to the upper side of the discharge section 140 .

[0241] The discharge part 140 rotates within a set angle range, so that the direction of the discharged air can be adjusted by changing the installation angle of the discharge part 140.

[0242] In addition, the inside of the discharge part 140 forms a concave groove, which reduces the increase in discharge resistance of air diverted through the discharge part 140. In addition, the filter part 40, the fan module part 70, and the discharge part 140 are arranged in a vertically aligned line, which minimizes airflow loss and allows for effective intake of air and discharge of filtered and purified air.

[0243] [Rotation of the outlet] Since a spherical ball joint 360 is located inside the first support part 180 and the second support part 190 of the discharge part 140, the discharge part 140 can rotate around the ball joint 360. Since the discharge part 140 is rotatably installed on the ball joint 360 provided on the rotation support part 300, the discharge part 140 is rotatably installed around the ball joint 360, and the air discharge direction can be easily adjusted.

[0244] When the rotation angle of outlet part 140, which functions as a circulator, is 0 degrees, the upper side of outlet part 140 is installed horizontally, and notification groove 540 formed on first support part 180 of outlet part 140 faces notification protrusion 510. Therefore, moving protrusion 511, which is pressed by inner elastic member 530, engages with the inside of notification groove 540, so that the user can easily recognize that outlet part 140 is positioned in its home position, which is its initial position.

[0245] Meanwhile, a core mounting part 170 that functions as a touch panel is installed in the center of the discharge part 140, and the electric wire 600 connected to the core mounting part 170 is connected to the underside of the housing part 10. Therefore, if the panel part were to rotate 360 ​​degrees without any additional rotation restraint, there is a high possibility that the electric wire 600 would be cut or damaged. Therefore, by installing the rotation guide part 400, the rotation angle of the discharge part 140 can be adjusted within a set angle, preventing damage to the electric wire 600.

[0246] That is, the guide protrusion 410 protruding from the outside of the ball joint 360 engages with the guide groove portion 420 formed on the inside of the discharge portion 140, so that the rotation of the discharge portion 140 is performed within the set angle, and the electric wire 600 connected to the discharge portion 140 can be prevented from being cut or damaged.

[0247] If the discharge part 140 attempts to rotate beyond the set angle, the guide protrusion 410 protruding outward from the ball joint 360 hits 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 performed within the set angle.

[0248] Meanwhile, the upper pressure force of the moving protrusion 511 can be adjusted by adjusting the position where the first adjusting bolt 520 is fastened to the mounting protrusion 369 .

[0249] Although the present invention has been described above with reference to the drawings illustrating the present invention, the present invention is not limited to the embodiments and drawings disclosed in this specification, and it is obvious that various modifications can be made by those 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 are not explicitly described and explained while the embodiments of the present invention are described above, it is natural that the effects that can be predicted by the configuration should also be recognized. [Explanation of symbols]

[0250] 1: Portable air purifier 10: Housing section 20: First case part 21: Containment space 22: Entrance 23: Entrance hole 24: Outlet 30: Second case part 40: Filter section 70, 370: Fan module section 80, 380: Fan housing 81, 381: Support plate 82, 382: Connecting support stand 83, 383: Wire guide 84, 384: Side support part 85, 385: Inner guide section 86, 386: Protruding boss 90: Fan parts 100: Hub 101: Hub plate 102: Shaft joint 103: First reinforcing protrusion 105: Inner protrusion 106: Second reinforcing protrusion 107: Skirt Club 110: Fan wing 111: First end 112:Second end 113: First Edge 114: Second Edge 120: Shroud 121: Entrance protrusion 130, 430: Fanbase 131, 431: Base plate 132, 432: Bellmouth 133: Protruding rib 134, 434: Combination process 140:Discharge part 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 part 170: Core mounting part 171: Touch panel 172: Display 173: Fixed case 180: First support 181: First support body 182: First curved groove 183: First wing member 190: Second support 191: Second support body 192: Second curved groove 193: Hollow part 195: Fastening member 200: Sterilization department 210: Sterilization support part 211: Support base 212: Fixed edge 220: Receiving part 221: Support pillar 222: Support plate 230: Irradiation unit 231: Printed circuit board 232: Sterilization light source 240: Battery 300: Rotation support part 310: Core member 312: Core Base 314: Core Body 320: Core connection part 330: Joint mounting part 332: Curved 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 354: Second core support 356: Connecting stand 360: Ball joint 362: Joint Body 363: First mounting hole 364: Second mounting hole 366: Greater foramen 368: Small diameter hole 369: Mounting protrusion 400: Rotating guide part 410: Guide protrusion 411: Locking head 412: Fastening body 420: Guide groove 421: First groove 422: Second groove 500: Position notification unit 510: Notification protrusion 511: Moving protrusion 512: Moving Head 514: Moving body 520: First adjustment bolt 530: Inner elastic member 540: Notification groove 600: Electric wire

Claims

1. A portable air purifier, a housing section having an inlet section for drawing in air, the filter section and the fan module section being located inside the housing section, and forming an air flow path in the vertical direction; a discharge portion located at the outlet of the housing portion and guiding the direction of air discharge; a rotation support portion connected to the housing portion, the movement of which is restricted, and which rotatably supports the discharge portion; and a rotation guide portion that is installed on the discharge portion and the rotation support portion, respectively, and that guides the rotation of the discharge portion so that the discharge portion rotates within a set angle; The rotation support portion is a core member located below the discharge portion and extending in a direction from the center of the discharge port toward the discharge portion; a core support portion extending outside the core member, fixed to the inside of the housing portion, and constrained from moving together with the core member; and a ball joint having a lower side connected to the core member and restricted in movement, and an upper side inserted into the discharge part and rotatably supporting the discharge part; The rotation guide portion is a guide protrusion connected to the ball joint or integral with the ball joint and protruding outward from the ball joint; and a guide groove portion having a concave groove on the inner side of the discharge portion facing the guide protrusion; The guide protrusion is inserted into the inside of the guide groove portion, and the guide protrusion is hooked onto the inside of the guide groove portion, thereby restricting rotation of the discharge portion beyond a set angle.

2. The portable air purifier according to claim 1 , wherein the core member has an outer curved surface, and a cross-sectional area of ​​the core member gradually decreases from a lower side connected to the core support portion toward the ball joint.

3. The portable air purifier of claim 1 , wherein the core member is arranged in a conical shape, and the cross-sectional area of ​​the core member gradually decreases upward.

4. The discharge part is a discharge body part located at the outlet of the housing part and guiding the air discharge direction; a first support portion connected to the ejection body portion or integrally formed with the ejection body portion, the first support portion having a first curved groove in the form of a concave groove; and a second support part coupled to the first support part and having a second curved groove formed therein and connected to the first curved groove; 2. The portable air purifier according to claim 1, wherein the ball joint is located in an inner space formed by the first curved groove and the second curved groove, and rotatably supports the first support part and the second support part.

5. The portable air purifier according to claim 4 , wherein the guide groove is installed in at least one of the first support part and the second support part facing the ball joint.

6. a position indicator that engages with the discharge unit to provide a sense of operation when the discharge unit is in a set position; The position notification unit a moving protrusion that is pressed toward the outside of the ball joint by an elastic force, and when the discharge portion is in a set position, the moving protrusion protrudes outside the ball joint; and The portable air purifier according to claim 1 , further comprising: a notification groove portion that forms a groove into which the moving protrusion is inserted and hangs on the inside of the discharge portion facing the notification protrusion portion.

7. The notification protrusion is a first adjustment bolt fastened to a lower side of a mounting hole provided in the ball joint; and 7. The portable air purifier according to claim 6, further comprising: an inner elastic member whose lower side is supported by the first adjustment bolt and whose upper side supports the moving protrusion and presses the moving protrusion with elastic force.

8. A portable air purifier, a housing section having an inlet section for drawing in air, the filter section and the fan module section being located inside the housing section, and forming an air flow path in the vertical direction; a discharge body portion located at the discharge port of the housing portion and guiding the direction of air discharge; a first support portion connected to the discharge body portion or integrally formed with the discharge body portion, the first support portion having a first curved groove in the form of a concave groove; a second support part coupled to the first support part and having a second curved groove formed therein and connected to the first curved groove; and a rotation support part, one side of which is connected to the housing part and the other side of which is installed at a position facing the first curved groove and the second curved groove, and which rotatably supports the first support part and the second support part; The rotation support portion is a core member located below the second support portion and extending in a direction from the center of the outlet toward the second support portion; a core support portion extending outside the core member, fixed to the inside of the housing portion, and constrained from moving together with the core member; and a ball joint having a lower side connected to the core member and restricted in movement, and an upper side positioned inside the first curved groove and the second curved groove to rotatably support the first support portion and the second support portion; The portable air purifier comprises: a guide protrusion connected to the ball joint or integral with the ball joint and protruding outward from the ball joint; and a guide groove portion having a concave groove on the inside of the first support portion or the second support portion; The guide protrusion is inserted into the inside of the guide groove portion, and the guide protrusion is hooked onto the inside of the guide groove portion, thereby restricting rotation of the discharge body portion beyond a set angle.

9. The first support portion includes a first support body having the first curved groove formed therein and fixed to the center of the ejection body portion; and a first wing member extending outward from the first support body and facing the second support portion; The portable air purifier according to claim 8 , wherein the first wing member and the second support portion are fixed together by fastening a fastening member.

10. the second support portion includes a second support body that has a hollow portion that communicates in the vertical direction and is installed in the circumferential direction; The portable air purifier according to claim 8 , wherein the second curved groove is formed on the inner side of the second support body facing the hollow portion.

11. the rotation support portion includes a spherical ball joint located inside a spherical groove formed by the first curved groove and the second curved groove, 9. The portable air purifier according to claim 8, wherein an outer diameter of the ball joint is larger than an inner diameter of a lower end of the second curved groove to prevent the ball joint from coming off outside the second support portion.

12. 12. The portable air purifier of claim 11, wherein a frictional force between the first support part and the ball joint and a frictional force between the second support part and the ball joint are inversely proportional to a separation distance between the first support part and the second support part that are disposed in a shape facing each other via the ball joint.

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