KR20220084934A - Safety fan module and portable air purifier having the same - Google Patents

Abstract

Disclosed are a safety fan module and a portable air purifier having the same. The safety fan module of the present invention includes: a rotatably installed fan member, a fan base installed consecutively on the fan member and guiding air inflow in a direction toward the fan member, and a fan base installed consecutively on the fan base and provided in the fan base It includes a blocking unit that blocks the movement of an external object to the inside of the suction unit, and a safety unit having a safety support supporting the blocking unit.

Description

Safety fan module and portable air purifier having the same

The present invention relates to a safety fan module and a portable air purifier having the same, and more particularly, to a safety fan module capable of blocking contact with a finger inside the fan module, and a portable air purifier having the same.

An air purifier is a device widely used in modern life, and it purifies the air by filtering physical particles such as dust, fine dust, and ultrafine dust, chemicals such as odor particles and harmful gases, and microorganisms such as bacteria and viruses. .

Air purifiers are becoming an indispensable device even in general households due to the influence of urbanization, industrialization, and globalization. In addition, the demand for it is rapidly increasing due to the increase in fine dust, the increase in allergy sufferers, and the improvement of living standards.

When the air purifier is intended for an environment exceeding 100 m2, such as a general home, the size of the device may be increased. In such a device, a filter corresponding to physical particles such as dust, a filter corresponding to a chemical substance such as gas, and a filter corresponding to microorganisms such as bacteria or viruses may be used in combination. That is, in a large space, a large-sized air purifier capable of accommodating various filters in combination can be used.

However, using a large-sized air purifier in a narrow space such as a studio room or inside a vehicle is inefficient in terms of space utilization, mobility, and energy consumption. In addition, for users who move frequently, an air purifier that is small in size and can be used by individuals is more suitable than a large-sized air purifier. Under this background, portable air purifiers that can be used by individuals are being developed.

The portable air purifier is provided in a small and light form for easy portability. Such a portable air purifier has the advantage that the user can easily carry it and use it at a desired place. That is, a portable air purifier is a device suitable for a user who has a life pattern of going out frequently or moving to several places rather than staying for a long time in one place, such as at home.

In the prior art (Korean Patent Application Laid-Open No. 2019-0061626), air is sucked in through the inlet of a portable air purifier to purify the air, and then the air is discharged through the outlet. However, since the portable air purifier of the prior art does not have a separate safety device around the fan module, the user's fingers are inside the fan module due to the user's carelessness when using the device, such as performing maintenance work or replacing the filter. There is a problem that a safety accident occurs due to contact.

In addition, even when a separate safety device is installed on the outside of the fan module, there is a problem in that air resistance is increased between the air sucked into the fan module part and the safety device, so that the blowing ability is reduced. Therefore, there is a need to improve it.

Background art of the present invention is published in Korean Patent Publication No. 2019-0061626 (published on June 5, 2019, title of the invention: air purification apparatus and control method thereof).

An object of the present invention is to provide a safety fan module that prevents a user's finger from coming into contact with the inside of the fan module, and a portable air purifier having the same.

Another object of the present invention is to provide a safety fan module capable of reducing air resistance generated between air moving inside the fan module and a safety device installed outside the fan module, and a portable air purifier having the same.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned may be understood by the following description, and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the appended claims.

A safety fan module and a portable air purifier having the same according to the present invention are technically characterized in that a safety part is installed on the outside of the fan base to form a protective net on the outside of the suction part.

Specifically, a safety part including a blocking part and a safety support is installed on the outside of the fan base to prevent a finger from contacting the suction part by being caught by the blocking part and the safety support, thereby preventing the occurrence of a safety accident.

In addition, the safety fan module and the portable air purifier having the same according to the present invention are technical features to provide a safety part having a reduced area in contact with air moving toward the suction part.

Specifically, since the blocking unit is not installed at the position facing the suction unit, the area in which the air moving to the suction unit through the filter contacts the safety unit is reduced, so that the air can move more smoothly.

A safety fan module according to an embodiment of the present invention includes a rotatably installed fan member, a fan base installed consecutively to the fan member and guiding air inflow in a direction toward the fan member, and a fan base installed consecutively, The fan base may include a blocking unit for blocking movement of an external object to the inside of the suction unit provided on the fan base, and a safety unit having a safety support supporting the blocking unit.

In addition, the suction unit is positioned between the hub positioned at the center of the fan member and the fan base, and may form a passage through which air is sucked into the fan member.

Also, the safety unit may be divided into a first area facing the suction unit and a second area not facing the suction unit. In addition, the blocking part may be located in the second area.

Also, the first region may have a higher flow rate of air moving toward the suction unit than the second region.

In addition, the blocking unit may include a first blocking member having an outer diameter smaller than the outer diameter of the hub and a second blocking member having an inner diameter larger than the inner diameter of the fan base.

In addition, the blocking part may further include a central member positioned at the center of the hub and positioned on the radially inner side of the first blocking member.

In addition, the safety support extends radially around the central member, and may be connected to the first blocking member and the second blocking member.

In addition, the blocking unit includes a first blocking member having an outer diameter larger than the outer diameter of the center member and smaller than the outer diameter of the hub, and an inner diameter larger than the outer diameter of the first blocking member and larger than the inner diameter of the fan base. It may include a second blocking member provided.

In addition, the blocking portion, larger than the outer diameter of the second blocking member, may further include an outer member positioned on the outer periphery of the second blocking member.

In addition, the safety support extends radially around the central member, and may be connected to the first blocking member, the second blocking member, and the outer member.

In addition, the central member and the first blocking member are installed at a position facing the hub. In addition, the second blocking member and the outer member are installed at a position facing the fan base.

A safety fan module according to an embodiment of the present invention includes a fan housing having an operating space inside, a fan member rotatably installed inside the fan housing, coupled to the fan housing and facing the fan member It may include a fan base for guiding the inflow of air and a safety unit having a safety support supporting the blocking unit and a blocking unit that is installed consecutively on the fan base and blocks the movement of external objects to the inside of the suction unit provided in the fan base. .

In addition, the blocking unit is installed at a position not facing the air flow area formed between the fan base and the hub located at the center of the fan member.

In addition, the blocking portion includes a central member positioned at the center of the hub, a first blocking member having an outer diameter larger than the outer diameter of the center member and smaller than the outer diameter of the hub, and an inner diameter larger than the outer diameter of the first blocking member and larger than the inner diameter of the fan base It may include a second blocking member having a, and an outer member larger than the outer diameter of the second blocking member and located on the outer periphery of the second blocking member.

In addition, the safety support extends radially around the central member, and may be connected to the first blocking member, the second blocking member, and the outer member.

A portable air purifier having a safety fan module according to an embodiment of the present invention includes a housing having an inlet for introducing air and an outlet for discharging air, and a housing having an air flow path formed therein; A fan fixed to the inside and having an operating space, a fan member rotatably installed inside the fan housing, and a fan coupled to the fan housing and guiding air inflow in a direction toward the fan member a base, a filter part positioned between the fan base and the inlet part, for purifying air flowing into the inlet part, and a suction part installed between the filter part and the fan base, the suction part provided in the fan base It may include a blocking unit for blocking the movement of an external object to the inside, and a safety unit having a safety support supporting the blocking unit.

In addition, the blocking unit may be installed at a position not facing the air flow area formed between the fan base and the hub located at the center of the fan member.

In addition, the blocking unit may include a first blocking member having an outer diameter smaller than the outer diameter of the hub and a second blocking member having an inner diameter larger than the inner diameter of the fan base.

In addition, the blocking unit may further include a center member located at the center of the hub and located inside the first blocking member.

In addition, the blocking portion, larger than the outer diameter of the second blocking member, may further include an outer member positioned on the outer periphery of the second blocking member.

In addition, the safety support extends radially around the central member, and may be connected to the first blocking member, the second blocking member, and the outer member.

In addition, the fan member includes a hub located at the center of the fan housing and rotating by receiving external power, a plurality of fan blades having one end connected to the hub and spaced apart from each other at equal intervals along the outer circumferential surface of the hub, and the other end of the fan blades. It is connected to the annular installation and may include a shroud that is spaced apart from the fan base.

In addition, the fan base has a plate shape extending in an annular shape, and a hollow for air movement may be provided in the center.

In addition, the present invention may include a bell mouse which is disposed in an annular shape along the inner side of the base plate facing the hollow, and surrounds the end of the fan member.

In the safety fan module and portable air purifier having the same according to the present invention, a safety part is installed consecutively on the fan base to form a protective net on the outside of the suction part, so it is possible to prevent the occurrence of a safety accident, and a filter inside the fan member Operation reliability can be improved by blocking the inflow of wealth.

In addition, according to the present invention, since the blocking unit is not installed at the position facing the suction unit, the area in contact with the air moving toward the suction unit is reduced, thereby improving the blowing function.

In addition to the above-described effects, the specific effects of the present invention will be described together while describing specific details for carrying out the invention below.

1 is a perspective view illustrating a safety type fan module high filter unit according to an embodiment of the present invention.
2 is a perspective view of a safety fan module according to an embodiment of the present invention.
3 is an exploded perspective view of a safety fan module according to an embodiment of the present invention.
4 is a plan view of a safety unit according to an embodiment of the present invention.
5 is a plan view illustrating a fan base and a safety unit according to an embodiment of the present invention.
6 is a plan view illustrating a fan member and a safety unit according to an embodiment of the present invention.
7 is a view showing a position facing the blocking unit on the fan member and the fan base according to an embodiment of the present invention.
8 is a plan view of a safety fan module according to an embodiment of the present invention.
9 is a bottom view of a fan base and a fan member according to an embodiment of the present invention.
10 is a cross-sectional view of a safety fan module according to an embodiment of the present invention.
11 is a perspective view of a fan member according to an embodiment of the present invention.
12 is a plan view of a fan member according to an embodiment of the present invention.
13 is a bottom view of a fan member according to an embodiment of the present invention.
14 is a front view of a fan member according to an embodiment of the present invention.
15 is a cross-sectional view of a fan member according to an embodiment of the present invention.
16 is a diagram illustrating an air flow passing through a safety fan module according to an embodiment of the present invention.
17 is an exploded perspective view of a portable air purifier having a safety fan module according to an embodiment of the present invention.
18 is a cross-sectional view of a portable air purifier having a safety fan module according to an embodiment of the present invention.
19 is a front view of a portable air purifier having a safety fan module according to an embodiment of the present invention.
20 is a diagram illustrating an air flow passing through a portable air purifier having a safety fan module according to an embodiment of the present invention.

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

Although the first, second, etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from other components, and unless otherwise stated, it goes without saying that the first component may be the second component.

In the following, that an arbitrary component is disposed on the "upper (or lower)" of a component or "upper (or below)" of a component means that any component is disposed in contact with the upper surface (or lower surface) of the component. Furthermore, it may mean that other components may be interposed between the component and any component disposed on (or under) the component.

In addition, when it is described that a component is “connected”, “coupled” or “connected” to another component, the components may be directly connected or connected to each other, but other components are “interposed” between each component. It should be understood that “or, each component may be “connected,” “coupled,” or “connected,” through another component.

Throughout the specification, unless otherwise stated, each element may be singular or plural.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “consisting of” or “comprising” should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps.

Throughout the specification, when “A and/or B” is used, it means A, B or A and B, unless otherwise stated, and when “C to D” is used, it means that there is no specific opposite description. Unless otherwise specified, it means that it is greater than or equal to C and less than or equal to D.

[Safety Fan Module]

1 is a perspective view illustrating a safety fan module 70 and a filter unit 40 according to an embodiment of the present invention, and FIG. 2 is a perspective view of a safety fan module 70 according to an embodiment of the present invention. 3 is an exploded perspective view of the safety fan module 70 according to an embodiment of the present invention.

1 to 3 , in the safety fan module 70 according to the present invention, the safety part 400 is installed on the outside of the fan base 130 to form a protective net on the outside of the suction part 136 . do. Since the safety part 400 including the blocking part 410 and the safety support 430 is installed on the outside of the fan base 130, the blocking part ( 410) and the safety support 430 with a finger caught in contact with the suction unit 136 is blocked.

In addition, since the blocking unit 410 is not installed at a position facing the suction unit 136 and the blocking unit 410 is installed in an area not facing the suction unit 136 , the suction unit is passed through the filter unit 40 . The area in which the air moving to 136 comes into contact with the safety unit 400 is reduced, so that the air can move more smoothly.

In addition, the safety fan module 70 is located between the inlet 22 provided on one side of the housing 10 and the outlet 24 provided on the other side of the housing 10, and rotates the fan. Various modifications are possible within the technical idea of blowing air in the direction toward the outlet 24 .

The fan type of the safety fan module 70 is a double-flow fan, and the internal structure of the safety-type fan module 70 is changed to mount a double-flow fan, so a small air purifier capable of maximizing fluidity is provided. can do.

The safety fan module 70 according to an embodiment of the present invention includes a fan member 90 that is rotatably installed, and a fan member 90 that is installed in series, and air flows in a direction toward the fan member 90 . A blocking unit 410 and a blocking unit that are installed in succession on the fan base 130 and the fan base 130 to guide It may include a safety unit 400 having a safety support 430 supporting the 410 .

In addition, the fan housing 80, the fan member 90, and the fan base 130 are combined to form a module, or the fan housing 80, the fan member 90, the fan base 130 and the safety part 400 are combined. to form a module, assembly and disassembly can be made easily, and production and maintenance costs can be reduced.

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

define the direction When the direction in which the discharge part 140 is positioned from the first case part 20 is upper and the direction in which the second case part 30 is positioned from the first case part 20 is lower, "first direction " means the up-down direction or the axial direction. Also, the first direction may be referred to as having the same meaning as the vertical direction. And the “second direction” is a direction perpendicular to the first direction, and means a left-right direction, a horizontal direction, or a radial direction.

[Fan housing]

The fan housing 80 is provided with an inner working space. The fan housing 80 according to an embodiment of the present invention is fixed to the inner side of the housing unit 10, and various modifications can be made within the technical idea to provide an inner working space for the fan member 90 to rotate. do. The fan housing 80 according to an embodiment of the present invention includes a support plate 81 , a connection support 82 , a wire guide 83 , a side support part 84 , an inner guide part 85 , and a protrusion mounting groove part 87 . ) may include at least any one of.

The support plate 81 is located in the center of the fan housing 80 and may have a disk shape. In addition, a hole is provided in the center of the support plate 81 . A motor may be installed in the center of the support plate 81 , or a shaft connected to the motor may be installed in the first direction, in the vertical direction.

The connecting support 82 extends radially outwardly of the support plate 81 and is connected to the side support 84 . The connecting support 82 according to an embodiment of the present invention is provided in plurality and may be installed in a bar shape. The connection support 82 extending outward in the radial direction of the support plate 81 may be connected to the side support part 84 .

The connection support 82 according to an embodiment of the present invention is located below the core support part 350 of the rotation support part 300 to be described later. Four connection supports 82 are installed at intervals of 90 degrees around the support plate 81 , and the core support part 350 is installed on the upper side facing the connection support 82 .

The wire guide 83 is installed in succession to the connection support 82 , and supports the lower portion of the wire so that the wire of the electronic device can be moved along the side of the connection support 82 . The wire guide 83 has a protrusion shape located on the lower side of the connection support 82 , and guides the electric wire of the motor installed on the support plate 81 to extend to the outside of the fan housing 80 . The wire guide 83 may be installed on the side of the connection support 82 to form a concave groove for arranging the wires. Therefore, the electric wire installed in the electric wire guide 83 is arranged in a concave groove located on the side of the connection support 82, and the lower part is supported by the electric wire guide 83, so that damage to the electric wire can be prevented.

The side support part 84 has a cylindrical pipe shape, and has an open top and bottom. The outside of the side support 84 is in contact with the inside of the housing 10 , and the inside of the side support 84 is connected to the connection support 82 . In addition, the side support portion 84 is spaced apart from the support plate 81 and connected to the connection support 82, and various modifications such as forming a circular curved surface along the outer periphery or having a polygonal shape are possible.

The inner guide portion 85 forms a first inclined surface 86 that is installed to be inclined downwardly from the lower side of the side support portion 84 toward the radially inner side. The inner guide part 85 is formed inside the side support part 84 , and the air blown upward by the fan member 90 moves to the inlet of the fan member 90 through the outer surface of the fan member 90 . It is possible to prevent the vortex phenomenon. In addition, the inner guide portion 85 protrudes to the inside of the side support portion 84 and has a first inclined surface 86 whose inner diameter is gradually narrowed toward the direction in which the fan base 130 is installed. And the inner guide part 85 may be installed below the side support part 84 facing the fan base 130 .

The projection mounting groove portion 87 forms a concave groove shape on the lower surface of the side support portion 84 , and the coupling projection 135 provided on the fan base 130 is connected thereto. The protrusion mounting groove 87 can be modified in various ways within the technical concept of having a groove for inserting the coupling protrusion 135 of the fan base 130 to be described later. A plurality of protrusion mounting groove portions 87 according to an embodiment of the present invention are installed along the circumferential direction of the side support portion 84 .

[Fan member]

11 is a perspective view of a fan member 90 according to an embodiment of the present invention, FIG. 12 is a plan view of the fan member 90 according to an embodiment of the present invention, and FIG. 13 is an embodiment of the present invention 14 is a front view of the fan member 90 according to an embodiment of the present invention, and FIG. 15 is a cross-sectional view of the fan member 90 according to an embodiment of the present invention. .

11 to 15 , the fan member 90 is rotatably installed inside the fan housing 80 , and is capable of moving air in a direction toward the discharge unit 140 in various ways within the technical idea. Variation is possible.

As the fan member 90, a fan may be used, but this is only an 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 an embodiment of the present invention includes a hub 100 positioned at the center of the fan housing 80 and rotating by receiving external power, and one end thereof is connected to the hub 100 and the hub ( A plurality of fan blades 110 arranged at equal intervals along the outer circumferential surface of 100) and a shroud 120 connected to the other end of the fan blade 110 and installed in an annular shape and spaced apart from the fan base 130 are included. can do.

[Herb]

The hub 100 is located at the center of the fan housing 80, and various modifications are possible within the technical idea of rotating by receiving external power. The lower side of the hub 100 has a circular plate shape, and a suction part 136 is formed between the hub 100 and the fan base 130 . Accordingly, the air outside the safety fan module 70 may be moved to the inside of the fan member 90 through the suction unit 136 .

The hub 100 is disposed at the radial center of the fan member 90 , and may rotate together with a rotor constituting the motor and a shaft that is an output shaft of the motor. The hub 100 according to an embodiment of the present invention includes a hub plate part 101, a shaft coupling part 102, an inner protrusion part 105, a skirt part 107, a first reinforcing protrusion 103, and a second reinforcing part. At least one of the protrusions 106 may be included.

The hub plate 101 is rotatably installed inside the fan housing 80 , and is located in the radial center of the fan housing 80 . In addition, the hub plate 101 may be formed in a disk shape parallel to the support plate 81 . A shaft coupling portion 102 may be provided on the hub plate portion 101 .

The shaft coupling portion 102 may be disposed at the radial center of the hub plate portion 101 . The shaft coupling portion 102 may be formed to protrude in at least one direction of an upper side and a lower side of the hub plate unit 101 . In addition, the shaft coupling unit 102 may be coupled to the axial end of the shaft for transmitting the rotational power to receive the rotational power. For example, the coupling between the shaft coupling portion 102 and the shaft may be made in a form in which the shaft is fitted to the shaft coupling portion 102 .

The first reinforcing protrusions 103 are installed at set intervals along the outer periphery of the shaft coupling portion 102 . The first reinforcing protrusion 103 is radially installed around the shaft coupling part 102 , and forms a belt-shaped protrusion on the outside of the shaft coupling part 102 . Therefore, the stress concentrated on the shaft coupling portion 102 is dispersed through the first reinforcing protrusion 103 , so it is possible to reinforce the structural rigidity of the shaft coupling portion 102 .

The inner protrusion 105 extends upward from the hub plate 101 to which the support plate 81 is installed. The inner protrusion 105 according to an embodiment of the present invention is installed in a circular arc direction along the outer edge of the hub plate 101 . The inner protrusion 105 according to an embodiment of the present invention may have a pipe shape extending in the vertical direction.

And the second reinforcing protrusions 106 are installed at set intervals along the inner circumference of the inner protrusion 105 . The second reinforcing protrusion 106 extends in the vertical direction along the inner surface of the inner protrusion 105 , and the lower side thereof is bent in the direction toward the shaft coupling unit 102 to be connected to the hub plate unit 101 in a band shape. The second reinforcing protrusion 106 is installed in the first direction along the inner surface of the inner protrusion 105 , and the lower side of the second reinforcing protrusion 106 has a band-shaped protrusion extending toward the shaft coupling unit 102 . to form Accordingly, since the stress concentrated on the inner protrusion 105 is distributed through the second reinforcing protrusion 106 , the structural rigidity of the inner protrusion 105 can be reinforced. If necessary, the rotor of the motor unit may be fixed to the inside of the inner protrusion 105 .

The skirt part 107 may protrude upward from the inner protrusion part 105 or the hub plate part 101 toward the support plate 81 . The skirt portion 107 according to an embodiment of the present invention extends obliquely upward from the outside of the inner protrusion 105 . In addition, the skirt portion 107 may form an inclined surface that is inclined outward in the radial direction as the distance from the hub plate portion 101 in the first direction increases. The skirt portion 107 is located outside the inner protrusion 105, and the inner diameter of the skirt portion 107 gradually increases from the lower side to the upper side.

For example, the shape in which the hub plate part 101 and the skirt part 107 are connected may have a truncated cone shape in which a hollow 137 is formed and one side is open. The skirt portion 107 may have a funnel shape in which the upper side is opened and the lower side is blocked by the hub plate portion 101 .

[Fan Wings]

The fan blades 110 are provided in plurality, and may be spaced apart from each other at equal intervals along the outer circumferential surface of the hub 100 . The fan blades 110 protrude to the outside of the hub 100 around the hub 100 , and the fan blades 110 extend spirally. In addition, the plurality of fan blades 110 may be disposed to be spaced apart from each other by a predetermined distance along the circumferential direction of the hub 100 .

The fan blade 110 according to an embodiment of the present invention may protrude to the outside of the skirt part 107 along the centrifugal direction extending helically from the center of the shaft coupling part 102 . In addition, when the direction from the outside of the shaft coupling portion 102 toward the shaft coupling portion 102 is referred to as a radial direction, the radially inner side of the fan blade 110 is connected to the skirt portion 107 , and the fan blade 110 . The radially outer side of may be connected to a shroud 120 to be described later. In addition, one end of the fan blade 110 is connected to the hub 100 , connects the skirt portion 107 and the shroud 120 , and extends spirally.

The skirt part 107 is a part directly connected to the fan blade 110 in the configuration of the hub 100 and is also in direct contact with the air passing through the fan blade 110 . The skirt portion 107 may be deeply related to the flow path of the air passing through the safety fan module 70 .

Each fan blade 110 connecting between the shroud 120 and the skirt part 107 has a first end 111 and a second end 112 and a first edge 113 and a second edge 114 . ) may be included.

The first end 111 may be disposed at the front end of the fan blade 110 in the rotation direction, and may be formed in a linear shape extending in the radial direction. The rotational direction is defined as a direction in which the fan member 90 rotates.

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 around the shaft coupling portion 102 .

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

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 peripheral surface of the hub 100 .

That is, one end of the first end 111 and one end of the second end 112 may be connected to the inner peripheral surface of the shroud 120 . In addition, the other end of the first end 111 and the other end of the second end 112 may be connected to the outer peripheral surface of the skirt portion 107 .

One end of the first end 111 may be disposed closer to the radial center of the hub plate 101 than one end of the second end 112 . The other end of the second end 112 may be disposed closer to the radial center of the hub plate 101 than the other end of the first end 111 . In this case, one end and the other end of the first end 111 are disposed forward in the rotational direction than one and the other end of the second end 112 , and the skirt portion 107 has a shape whose radius becomes narrower toward the front in the rotational direction. because it is formed.

According to this embodiment, the fan blade 110 is connected to the skirt portion 107 of the hub 100 . In order to guide the flow of air flowing into the safety fan module 70 in an upwardly inclined direction, the skirt part 107 forms an inclined surface in an upwardly inclined direction.

[Shroud]

The shroud 120 is connected to the other end of the fan blade 110 and is installed in an annular shape, and various modifications can be made within the technical idea that can be spaced apart from the fan base 130 .

The shroud 120 is installed along the outer circumference of the skirt part 107 , and the shroud 120 and the skirt part 107 are connected by the fan blades 110 . Also, the outer diameter of the hub 100 and the inner diameter of the shroud 120 may gradually decrease from the upper side to the lower side.

In addition, since the distance between the shroud 120 and the skirt portion 107 connected by the fan blades 110 gradually increases from the lower side to the upper side, the blowing of the airflow fan discharging air in an upward inclined direction is more It can be done smoothly to increase the airflow.

The shroud 120 is spaced apart from the hub 100 by a predetermined distance in the radial direction, and may be disposed radially outside the hub 100 . In addition, the shroud 120 may be spaced apart from the hub 100 by an interval corresponding to the radial length of the fan blade 110 . And each fan blade 110 may connect between the skirt part 107 and the shroud 120 provided in the hub 100 .

The shroud 120 may form an inclined surface substantially parallel to the skirt part 107 . In this embodiment, the arrangement of the skirt part 107 and the shroud 120 is made in a form in which the distance between the skirt part 107 and the shroud 120 gradually increases toward the upper side of the shroud 120. is exemplified

The shroud 120 according to an embodiment of the present invention further includes an entrance protrusion 121 provided on the lower side of the shroud 120 . The inlet protrusion 121 provided on the lower side of the shroud 120 is a ring-shaped protrusion, and extends from the lower side of the funnel-shaped shroud 120 in the first direction. In addition, the inlet protrusion 121 extends downward and is spaced apart from the fan base 130 at a set interval. Since the inlet protrusion 121 is located on the inside of the bell mouse 132 to be described later, it is possible to prevent rotational movement of the air flowing into the inlet provided at the lower side of the shroud 120 along the outside of the shroud 120 . .

[Fan Base]

9 is a bottom view of the fan base 130 and the fan member 90 according to an embodiment of the present invention, and FIG. 10 is a cross-sectional view of the safety fan module 70 according to an embodiment of the present invention.

3, 9 and 10, the fan base 130 is coupled to the fan housing 80, and various modifications are carried out within the technical idea of guiding the inflow of air in the direction toward the fan member 90. It is possible. The fan base 130 has a plate shape extending in an annular shape, and a base plate (133) having a hollow 137 for air movement in the center and a base plate facing the hollow 137 (133)) It is arranged in an annular shape along the inside of the, and forms a groove of a concave shape toward the upper side and may include a bell mouth 132 surrounding the lower side of the inlet protrusion 121 . The fan base 130 according to an embodiment of the present invention may include at least one of a base plate 133 , a bell mouth 132 , a protruding rib 133 , and a coupling protrusion 135 .

The fan base 130 may be disposed between the filter unit 40 and the fan member 90 . In addition, the shape of the edge of the fan base 130 may be formed in a shape corresponding to the shape of the edge of the filter unit 40 . For example, when the filter unit 40 has a cylindrical shape and the edge shape of the filter unit 40 has a circular shape, the fan base 130 may be installed in an annular shape having a hollow 137 .

In addition, a safety unit 400 may be additionally installed between the fan base 130 and the filter unit 40 . The safety unit 400 blocks the filter unit 40 from being sucked into the suction unit 136 provided in the hand base, and can prevent an external object including the user's finger from approaching the inside of the suction unit 136 . have.

The base plate 131 may be disposed between the filter unit 40 and the fan member 90 or may be disposed between the safety unit 400 and the fan member 90 . The base plate 131 has a plate shape extending in an annular shape, and a hollow 137 for air movement is provided in the center.

The bell mouse 132 is installed in an annular shape on the inside of the base plate 131 facing the hollow 137 . The bell mouse 132 may be installed in a shape surrounding the lower end of the fan member 90 . The bell mouse 132 according to an embodiment of the present invention has a concave longitudinal cross-section surrounding the lower side of the inlet protrusion 121 protruding to the lower side of the shroud 120 and extends in the circumferential direction.

The bell mouth 132 may be formed in a shape surrounding the outer circumferential surface of the hollow 137 formed in the center of the base plate 131 . The bell mouth 132 is formed to be convex toward the lower side, and may form a groove having a concave shape toward the upper side.

Bell mouth 132, at least a portion may be inserted into the radially inner side of the shroud (120). The bell mouse 132 guides the suction flow at the inlet of the safety fan module 70 , thereby contributing to improving the suction and discharge performance of the safety fan module 70 .

The coupling protrusion 135 protrudes upward of the base plate 131, and is fitted to the groove of the protrusion mounting groove 87 provided in the fan housing 80 to fit the fan base on the lower side of the fan housing 80. 130) is fixed.

By the coupling formed between the coupling protrusion 135 and the projection mounting groove 87, coupling between the fan base 130 and the fan housing 80 may be made at a plurality of points. When the coupling between the fan base 130 and the fan housing 80 is made in this way, the fan member 90 may be rotatably installed between the fan base 130 and the fan housing 80 .

The protruding rib 133 protrudes from the base plate 131 and may be disposed radially outside the bell mouth 132 . The protruding rib 133 according to an embodiment of the present invention is located on the radially outer side of the bell mouth 132 and is installed in an annular shape surrounding the outer circumference of the bell mouth 132 . In addition, the protruding ribs 133 may be integrally formed with the base plate 131 . More specifically, the base plate 131, the bell mouth 132, and the protruding rib 133 may be integrally formed.

The protruding rib 133 according to an embodiment of the present invention is spaced apart from the shroud 120 and includes a second inclined surface 134 whose inner diameter gradually increases toward the upper side. In addition, the second inclined surface 134 is installed parallel to the outer surface of the shroud 120 . Also, the first inclined surface 86 and the second inclined surface 134 have the same angle with the horizontal line.

In addition, the protruding ribs 133 may be installed to be inclined at the same angle as the outer surface of the shroud 120 , and a distance between the protruding ribs 133 and the shroud 120 may be maintained constant. The protruding rib 133 facing the shroud 120 protrudes upward of the base plate 131 and forms a second inclined surface 134 on the upper side. The second inclined surface 134 of the protruding rib 133 ) is spaced apart from the shroud 120 by a set interval and may be installed parallel to the outside of the shroud 120 .

In addition, the second inclined surface 134 of the protruding rib 133 may have the same inclination angle as the first inclined surface 86 of the inner guide portion 85 provided in the fan housing 80 . Therefore, a part of the air moved upward through the space between the shroud 120 and the skirt part 107 goes to the inlet of the fan member 90 through the space between the shroud 120 and the protruding rib 133 . It is possible to prevent the phenomenon of moving cyclones.

Since the passage between the fan member 90 and the fan base 130 is narrowly formed, and the bell mouth 132 provided in the fan base 130 is installed in a shape that surrounds the lower end of the shroud 120, the fan member ( 90) to reduce or block the flow of air moving to the inlet of the fan site through the outside of the fan, so it is possible to prevent the vortex phenomenon.

Between the inner diameter of the bell mouth 132 and the outer diameter of the hub plate 101, a suction part 136, which is a space in which air is sucked by the fan member 90, is formed. The suction unit 136 is a ring-shaped region located outside the hub plate unit 101 , and the suction unit 136 includes the hub 100 and the fan base 130 located at the center of the fan member 90 . It is located between the and can form a passage through which air is sucked through the fan member (90).

[Ministry of Safety]

4 is a plan view of the safety unit 400 according to an embodiment of the present invention, FIG. 5 is a bottom view showing the fan base 130 and the safety unit 400 according to an embodiment of the present invention, and FIG. 6 is It is a bottom view showing the fan member 90 and the safety part 400 according to an embodiment of the present invention, and FIG. 7 is a blocking part on the fan member 90 and the fan base 130 according to an embodiment of the present invention. It is a view showing the position facing 410, and FIG. 8 is a plan view of the safety fan module 70 according to an embodiment of the present invention.

3 to 8 , the safety unit 400 is installed in succession to the fan base 130 , and blocks the movement of external objects to the inside of the suction unit 136 provided in the fan base 130 . It includes a part 410 and a safety support 430 for supporting the blocking part 410 . The safety unit 400 minimizes the flow resistance of the air introduced into the suction unit 136 provided between the fan base 130 and the hub 100 of the fan member 90, while minimizing the flow resistance of the air through the suction unit 136. Various modifications are possible within the technical idea of blocking the inflow of objects. The safety unit 400 may be formed in a mesh shape provided with a plurality of through holes. In addition, the safety unit 400 may be coupled to the lower portion of the fan base 130 or may be spaced apart from the fan base 130 and fixed to the inside of the housing unit 10 . In addition, the safety part 400 can be implemented in various modifications, such as being fixed to the filter case facing the fan base 130 is possible.

The safety part 400 has a predetermined thickness and may be installed in a disk shape, and a hole for passing air moving toward the suction part 136 is formed inside the safety part 400 . The safety part 400 is designed in a direction to reduce the flow resistance of the air sucked into the fan member 90 . In addition, the safety unit 400 may be formed integrally with a separate filter case in which the filter unit 40 is mounted, and it is safe by preventing external objects, including fingers, from coming into contact with the fan blade 110 during the filter unit 40 replacement operation. accidents can be prevented.

The safety unit 400 according to an embodiment of the present invention may be divided into a first area 440 facing the suction unit 136 and a second area 450 not facing the suction unit 136 . Since the flow rate of the air moving toward the suction unit 136 is greater in the first region 440 than in the second region 450 , the blocking unit 410 may be located only in the second region 450 . Since the blocking unit 410 is located in the second region 450 , it is possible to minimize an increase in frictional resistance of air flowing into the suction unit 136 through the safety unit 400 .

For example, when the safety part 400 is installed in the disk-shaped region, the first region 440 is a ring-shaped region facing the suction part 136 , and the second region 450 is the first region 440 . ) is a region located at the center and the outer periphery of the first region 440 .

The portable air purifier 1 having a safety fan module includes a filter unit 40 having a dust collecting function, and a safety fan module 70 is installed at the rear end of the filter unit 40 to generate air flow. make it In order to prevent a finger or the like from coming into contact with the fan member 90 when the filter unit 40 is replaced, a mesh-shaped safety unit 400 is installed on the outside of the fan base 130 to provide a contact prevention structure that satisfies safety standards can do.

[Blocking part]

In the blocking part 410 , ring-shaped members having different diameters may be sequentially installed based on the radial center of the safety part 400 . The blocking part 410 is installed at a position that does not face the air flow region 445 formed between the fan base 130 and the hub 100 positioned at the center of the fan member 90 . In addition, the blocking part 410 is a support extending in a ring shape, and various modifications are possible within the technical idea installed between the fan base 130 and the filter part 40 . The blocking part 410 according to an embodiment of the present invention may include at least one of a central member 411 , a first blocking member 412 , a second blocking member 413 , and an outer member 414 . have.

The center member 411 is located at the center of the hub 100 , and is located inside the first blocking member 412 in the radial direction. The central member 411 positioned at the central portion of the hub 100 may have a ring shape.

The first blocking member 412 may have an outer diameter smaller than the outer diameter of the hub 100 . The first blocking member 412 according to an embodiment of the present invention may have an outer diameter larger than the outer diameter of the center member 411 and smaller than the outer diameter of the hub 100 . The first blocking member 412 is installed in a ring shape, and the center of the first blocking member 412 and the center member 411 is the same. In addition, since the first blocking member 412 and the center member 411 are installed in the second region 450 facing the hub 100, the increase in frictional resistance of air moving toward the suction unit 136 is minimized. can

If the size of the suction unit 136 is large, the first blocking member 412 may be installed in the first area 440 facing the suction unit 136 . The first region 440 is an air flow region 445 , and is a passage through which air introduced into the suction unit 136 is mainly moved. Preferably, the blocking part 410 including the first blocking member 412 or the safety support 430 is not installed in the first region 440, but if the interval between the suction parts 136 is wide, the blocking part 410 is blocked. The part 410 or the safety support 430 may be installed in the first area 440 .

When the first blocking member 412 is installed in the first region 440 , a ring-shaped first blocking member 412 may be installed at an intermediate position between the hub plate 101 and the fan base 130 . When the first blocking member 412 is installed in the center of the first region 440 , the air passing through the first blocking member 412 moves in a state of being reunited toward the suction unit 136 , so the flow rate is reduced can be minimized.

The second blocking member 413 may have an inner diameter greater than the inner diameter of the fan base 130 . The second blocking member 413 according to an embodiment of the present invention may have an inner diameter greater than the outer diameter of the first blocking member 412 and greater than the inner diameter of the fan base 130 . The inner diameter of the second blocking member 413 is larger than the inner diameter of the bell mouth 132 facing the hollow 137 of the fan base 130 . The second blocking member 413 is installed in a ring shape, and the center of the second blocking member 413 and the center member 411 is the same. In addition, since it is installed in the second region 450 facing the second blocking member 413 and the bell mouth 132 , an increase in frictional resistance of air moving toward the suction unit 136 can be minimized.

The outer member 414 is larger than the outer diameter of the second blocking member 413 and is located on the outer periphery of the second blocking member 413 . The outer member 414 is installed in a ring shape, and the center of the outer member 414 and the center member 411 is the same. In addition, the outer member 414 may be fixed to the fan base 130 or to the inside of the housing 10 through a separate fastening device, and may be connected to a filter case supporting the filter unit 40 if necessary. may be Since the outer member 414 is installed in the second region 450 facing the fan base 130 together with the second blocking portion 410 , the increase in frictional resistance of air moving toward the suction unit 136 is minimized. can do.

The safety unit 400 facing the suction unit 136 provided in the safety fan module 70 minimizes the cross-sectional area facing the suction unit 136 , so that it is possible to minimize a decrease in the flow rate of air. To this end, the cross-sectional area of the safety part 400 installed in the air flow region 445 that is the first region 440 is minimized. When the first area 440 is formed between the inner diameter of the bell mouth 132 and the outer diameter of the hub plate 101 , the blocking part 410 may not be installed in the first area 440 .

However, when the distance between the inner diameter of the bell mouse 132 and the outer diameter of the hub plate 101 is greater than or equal to the set distance, the blocking part 410 is located at the center of the inner diameter of the bell mouse 132 and the outer diameter of the hub plate 101 . You may. The set distance may be set to 12mm, and the set distance may be increased or decreased based on 12mm in consideration of the average thickness of the fingers.

When the distance between the inner diameter of the bell mouse 132 and the outer diameter of the hub plate 101 is within a set distance, the center member 411 and the first blocking member 412 are installed at a position facing the hub 100 and , the second blocking member 413 and the outer member 414 are installed at positions facing the fan base 130 .

[Safety support]

The safety support 430 extends radially around the central member 411 , and may be connected to the first blocking member 412 , the second blocking member 413 , and the outer member 414 . A plurality of safety supports 430 are installed, and the safety support 430 and the blocking part 410 material may be located on the same plane.

As described above, the safety unit 400 minimizes the cross-sectional area of the blocking unit 410 located in the air flow region 445 to minimize the decrease in the air flow rate. When the interval between the inner diameter and the outer diameter of the suction part 136 is narrow, the blocking part 410 is not installed in the first area 440 . In addition, when the interval between the inner and outer diameters of the suction unit 136 is wider than the set interval, the blocking unit 410 is installed in the center of the first area 440 . Therefore, the air passing through both sides of the blocking unit 410 installed in the first region 440 and moving to the suction unit 136 minimizes the non-uniform air flow generated by the blocking unit 410 to minimize the It is possible to minimize the decrease in the flow rate and decrease in the flow rate of the air flowing to (136).

[Portable air purifier with safety fan module]

16 is a view showing the air flow passing through the safety fan module 70 according to an embodiment of the present invention, and FIG. 17 is a portable air purifier having a safety fan module according to an embodiment of the present invention. (1) is an exploded perspective view, FIG. 18 is a cross-sectional view of a portable air purifier 1 having a safety fan module according to an embodiment of the present invention, and FIG. 19 is a safety fan according to an embodiment of the present invention It is a front view of the portable air purifier 1 having a module, and FIG. 20 is a view showing the air flow passing through the portable air purifier 1 having a safety fan module according to an embodiment of the present invention.

16 to 20, the portable air purifier 1 having a safety fan module according to an embodiment of the present invention includes an inlet 22 through which air is introduced and an outlet 22 through which air is discharged ( 24), a housing portion 10 having an air flow path 25 formed therein, a fan housing 80 fixed to the inside of the housing portion 10 and having an operating space, and the fan housing A fan member 90 rotatably installed inside the 80, a fan base 130 coupled to the fan housing 80 and guiding air inflow in a direction toward the fan member 90; , a filter unit 40 positioned between the fan base 130 and the inlet unit 22 to purify the air flowing into the inlet unit 22, and the filter unit 40 and the fan A blocking part 410 installed between the base 130 and blocking the movement of an external object to the inside of the suction part 136 provided in the fan base 130, and supporting the blocking part 410 It may include a safety unit 400 having a safety support 430 . In addition, the portable air purifier 1 having a safety fan module may include at least one of a discharging unit 140 , a sterilizing unit 170 , a battery 200 , and a rotating support unit 300 .

[Housing part]

The housing part 10 according to an embodiment of the present invention includes a first case part 20 and a second case part 30 . The first case part 20 and the second case part 30 form an external skeleton of the portable air purifier 1 having a safety fan module. The inside of the housing part 10 forms a cylindrical air flow path 25, and guides the movement of air in a direction from the lower side to the upper side. In addition, a safety fan module 70 having a circular rim is mounted inside the housing 10 . Accordingly, since a gap is prevented from being generated between the safety fan module 70 and the housing part 10 , the movement of air between the safety fan module 70 and the housing part 10 is blocked.

In addition, the air introduced into the lower part of the housing unit 10 is discharged to the upper side of the housing unit 10 through the safety fan module 70 to easily reach a user located above the air purifier.

The side and bottom exteriors of the portable air purifier 1 having a safety fan module are formed by the first case part 20 and the second case part 30 . An accommodating space 21 is formed inside the first case part 20 and the second case part 30 . In the accommodation space 21 , the filter unit 40 , the safety fan module 70 , the sterilization unit 170 , the rotation support unit 300 , and electrical components including the battery 200 are accommodated. The first case part 20 and the second case part 30 are preferably formed to have sufficient strength to protect the components accommodated in this way from external impact.

[Filter part]

The filter unit 40 is installed in the accommodation space 21 of the first case unit 20 , and is disposed between the safety fan module 70 and the inlet unit 22 . That is, the filter unit 40 is disposed below the safety fan module 70, and serves to purify the air sucked through the inlet 22 of the portable air purifier 1 having the safety fan module. . The purified air passing through the filter unit 40 passes through the safety fan module 70 and the discharge unit 140 and is discharged to the upper part of the portable air purifier 1 having the safety fan module.

The filter unit 40 is installed inside the first case unit 20 and purifies the air introduced into the inlet unit 22 . In addition, the filter unit 40 may be formed in a cylindrical shape extending in the vertical direction.

The filter unit 40 may be formed of a single filter, and if necessary, a plurality of filters may be installed in a stacked state. In addition, the filter unit 40 may be additionally provided with a separate filter case for fixing the filter.

The filter case is fixed to the inside of the first case part 20, and an insertion space for accommodating the filter may be formed inside the filter case.

The safety fan module 70 is accommodated in the accommodating space 21 inside the first case unit 20 , and may be disposed between the discharge unit 140 and the filter unit 40 . More specifically, the safety fan module 70 may be disposed between the outlet 24 and the filter unit 40 . That is, the safety fan module 70 is located above the filter unit 40 , and the discharge port 24 , the rotation support unit 300 , and the discharge unit 140 are located above the safety type fan module 70 . The safety fan module 70 serves to suck air introduced into the lower part of the filter part 40 through the inlet part 22 and discharge the air to the upper part of the first case part 20 .

In addition, the safety part 400 provided in the safety fan module 70 can be modified in various ways, such as being fixed to the filter case or formed integrally with the filter case.

[Discharge part]

The rotation center of the discharge unit 140 may coincide with the center of the safety fan module 70 in the vertical direction. The air introduced through the inlet part 22 moves upward, passes through the filter part 40, the safety fan module 70, and the discharge part 140 in sequence, and a portable air purifier (1) having a safety fan module. ) is discharged to the upper side of the

The safety fan module 70 may suck in the 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.

The discharge unit 140 is rotatably installed on the upper side of the first case unit 20 , and may guide the discharge direction of the air moved upward through the discharge port 24 . The rotation support part 300 is provided on the upper part of the first case part 20 , and the discharge part 140 is rotatably installed on the rotation support part 300 . Since both upper and lower sides of the discharge unit 140 are open, the air moved to the lower part of the discharge unit 140 through the discharge port 24 is a portable air purifier having a safety fan module through the upper portion of the discharge unit 140 . It can be discharged to the outside of (1).

The sterilization unit 170 may be located under the filter unit 40 and be fixed to at least one of the first case unit 20 and the second case unit 30 . The sterilization unit 170 is spaced apart from the filter unit 40 by a set distance, and irradiates a light for sterilization toward the filter unit 40 . Since the sterilization light irradiated from the sterilization unit 170 is harmful to the human body, the sterilization unit ( 170) to set the installation location.

The battery 200 is installed in the accommodating space 21 provided inside the second case unit 30 , and is disposed under the sterilization unit 170 . The battery 200 may supply power for driving the portable air purifier 1 having a safety fan module.

The housing unit 10 includes an inlet unit 22 , and the filter unit 40 , the sterilization unit 170 , and the safety fan module 70 may be located inside. In addition, the housing 10 forms an air flow path in the vertical direction. Since the cylindrical air flow path 25 is formed inside the housing part 10, the frictional resistance of air moving in the vertical direction can be reduced.

In addition, the inlet part 22, the filter part 40, the sterilization part 170, the safety fan module 70, and the outlet 24 rotate along a vertical reference line penetrating the center of the housing part 10 in the vertical direction. The center of the support part 300 may coincide in the vertical direction. Accordingly, the flow of air moving from the lower side to the upper side along the housing part 10 is moved in a straight line along the vertical direction to shorten the air movement path, thereby reducing the air flow resistance and improving the air purification efficiency.

When the portable air purifier 1 having a safety fan module is installed on a horizontal surface, the vertical reference line coincides with the vertical line. In addition, the housing 10 may be formed of a single member, but may preferably be formed of a plurality of members.

The portable air purifier 1 having a safety fan module may be formed in an upright cylindrical shape as a whole. Accordingly, the user can use the portable air purifier 1 having the safety fan module upright or lying down. In addition, since the portable air purifier 1 having a safety fan module is used in a place where shaking occurs, such as inside a vehicle, mounted in a recess concave toward the bottom, such as a cup holder, it can stably maintain its position.

[Detailed composition of portable air purifier parts]

The portable air purifier 1 having a safety fan module according to an embodiment of the present invention may include a housing unit 10 , a filter unit 40 , and a safety fan module 70 . In addition, the portable air purifier 1 having a safety fan module according to an embodiment of the present invention may further include a discharge unit 140 , a rotation support unit 300 , a sterilization unit 170 , and a battery 200 . may be

[1st case part]

The housing part 10 includes a first case part 20 and a second case part 30, and the first case part 20 has an accommodation space 21 formed therein, and sucks air on its lower side. An inlet portion 22 may be provided. The first case part 20 may have a cylindrical shape, and may be installed in a shape in which upper and lower sides are opened. The first case unit 20 may be formed of a single component, or may be formed of a plurality of members, if necessary. The first case portion 20 according to an embodiment of the present invention is made of a plurality of members, each member may be coupled by fitting or by adhesive or welding, and may be connected to each other even by a fastening member such as a bolt. Various modifications are possible.

Meanwhile, air is sucked in through the lower side of the first case unit 20 , and air is discharged through the upper side of the first case unit 20 . To this end, an inlet part 22 having an inlet hole 23 is installed along the lower periphery of the first case part 20 . And an outlet 24 for discharging air may be provided on the upper side of the first case unit 20 .

In addition, since the filter part 40 is installed on the upper side spaced apart from the inlet part 22 in a state in which the inlet part 22 for sucking air is installed along the outer periphery of the first case part 20, the filter part 40 Air movement can be made uniformly over the entire area of

On the other hand, a plurality of inlet holes 23 are formed in the inlet portion 22, and these inlet holes 23 may be installed obliquely in a diagonal shape, and if necessary, a hole in the shape of an inequality sign with a bent center may be formed. . In addition, in order to increase the flow rate of the air flowing into the filter unit 40, various modifications such as an inlet hole 23 may be additionally formed on the side of the housing unit 10 in which the filter unit 40 is installed are possible. .

On the other hand, the housing 10 can be deformed into various shapes, such as being made of a plurality of three or more members.

[Second case part]

The second case part 30 is connected to the lower part of the first case part 20, and inside the second case part 30, there are various Variation is possible.

At least one of the first case part 20 and the second case part 30 may be formed of a cylindrical case. Both the first case part 20 and the second case part 30 may have a cylindrical shape, and only the second case part 30 may have a cylindrical shape. Alternatively, only the first case part 20 may be formed in a cylindrical shape, if necessary.

When the second case portion 30 is formed in a cylindrical shape and extends in the vertical direction, it is convenient for the user to grip the outer periphery of the second case portion 30 by hand, and a cup of a vehicle having a groove portion having a generally circular cross-section. The operation of mounting the second case part 30 to the holder can be easily performed.

And when the first case part 20 is formed in a cylindrical shape, friction generated when air passing through the inside of the first case part 20 and moving upward comes in contact with the inside of the first case part 20 having a curved shape. By reducing the air flow can be made more smoothly.

On the other hand, since the air flow path 25 is formed inside the first case part 20 and the air flow path 25 is not formed inside the second case part 30, the second case part 30 is a cup holder. Even when held in the user's hand, suction and discharge of air through the first case unit 20 can be smoothly performed, thereby improving the convenience of use.

[Filter part]

The filter unit 40 is installed inside the first case unit 20 , and various modifications are possible within the technical idea of purifying the air introduced into the inlet unit 22 . The filter unit 40 according to an embodiment of the present invention may be formed in a cylindrical shape.

The first case part 20 has a circular pipe shape, and the filter part 40 installed inside the first case part 20 also has a cylindrical shape in contact with the inside of the first case part 20 , so the first case part The impurities in the air passing through the inside of (20) can be effectively removed.

In addition, the cross section of the filter unit 40 is formed in a circular shape to have the largest area inside the first case unit 20 . In addition, the filter unit 40 is manufactured in the form of a cylinder, and when the upper and lower ends of the fabric constituting the filter unit 40 are cut, the pressure loss is minimized to maximize the performance of the filter unit 40 .

In addition, since the outer diameter of the filter unit 40 is manufactured to be larger than the suction diameter of the bell mouth 132 through which air is sucked into the safety fan module 70 , the volume of the filter unit 40 can be maximized.

In addition, according to this embodiment, the filter unit 40, the safety fan module 70, and the discharge unit 140 are arranged in the vertical direction along the housing unit 10, and the air flow is also in the same vertical direction. can be made with That is, the flow of air made by the operation of the safety fan module 70 may be made in the same linear direction as the arrangement directions of the filter unit 40 , the safety fan module 70 , and the discharge unit 140 .

As such, when the flow of air in the linear direction is made, the resistance to the air flow is lowered by that amount, so that the flow of air can be made more smoothly. As a result, a sufficient amount of air can be sucked by the safety fan module 70 and a sufficient amount of air corresponding thereto can be discharged, so the air purification performance of the portable air purifier 1 having the safety fan module is improved by that much. can become

A safety part 400 is installed between the filter part 40 and the fan base 130 . The safety unit 400 may be fixed inside the first case unit 20 or connected to a filter case in which the filter unit 40 is accommodated. Alternatively, various modifications are possible, such as being fixed to the fan base 130 through a separate fastening device.

[Discharge part]

The discharge unit 140 is located at the discharge port 24 of the housing unit 10 , is rotatably installed in the rotation support unit 300 , and guides the discharge direction of the air passing through the safety fan module 70 . Various modifications are possible within the idea. Since the discharge unit 140 according to the present invention is rotatably installed in the spherical ball joint 360 provided in the rotation support unit 300 , the rotating operation can be performed smoothly.

The discharge unit 140 installed on the upper side of the housing unit 10 is opened in the vertical direction and is rotatably connected to the rotation support unit 300 , so that the discharge direction of the air passing through the safety fan module 70 can be adjusted. have. The discharge unit 140 according to an embodiment of the present invention may include a first discharge unit 150 and a second discharge unit 160 .

[First discharge unit]

The first discharge unit 150 is located on one side of the ball joint 360, and various modifications are possible within the technical idea in which a plurality of vanes 156 for guiding air discharge are provided. The first discharge unit 150 according to an embodiment of the present invention may include a first discharge core 152 , a first discharge body 154 , and a vane 156 .

The first discharge core 152 is located above the ball joint 360 and may be formed in various shapes including a disk shape. In addition, the first discharge body 154 may be spaced apart from the first discharge core 152 , and may be installed in an annular shape surrounding the outside of the first discharge core 152 . In addition, since the outer side of the first discharge body 154 has a curved shape and is installed in a spaced apart state from the housing unit 10, it is possible to prevent contact with the housing unit 10 when the first discharge unit 150 rotates. have.

And since the first discharge core 152 and the first discharge body 154 are connected by a plurality of vanes 156, the first discharge core 152, the first discharge body 154, and the vane 156 are connected together. Rotation can be made.

[Second discharge part]

The second discharge unit 160 is located on the other side of the ball joint 360 , is connected to the first discharge unit 150 , and rotates around the ball joint 360 together with the first discharge unit 150 . Various modifications are possible within the idea. The second discharging unit 160 according to an embodiment of the present invention may include a second discharging core 161 , a second discharging body 162 , and a discharging support 163 .

The second discharge core 161 is installed in a shape surrounding the spherical lower side of the ball joint 360 , and is located below the first discharge core 152 . In addition, the second discharge body 162 is installed in an annular shape surrounding the outside of the second discharge core 161, and the outside of the second discharge body 162 has a curved shape.

In addition, since the second discharge core 161 and the second discharge body 162 are connected by a plurality of discharge supports 163 , the second discharge core 161 , the second discharge body 162 and the discharge support 163 . can be rotated together.

[Sterilization Department]

The sterilization unit 170 is located between the filter unit 40 and the second case unit 30 , and various modifications are possible within the technical idea of irradiating a sterilizing light toward the filter unit 40 . The sterilization unit 170 according to an embodiment of the present invention may include at least one of a sterilization support unit 171 , a support unit 176 , and an irradiation unit 180 .

[Sterilization support part]

The sterilization support unit 171 is positioned between the first case unit 20 and the second case unit 30 , and shields the lower portion of the first case unit 20 . In addition, the sterilization support unit 171 is located below the irradiation unit 180, it is connected to the housing unit 10, it is possible to carry out various modifications within the technical concept that the movement is restricted.

The air introduced into the first case unit 20 through the inlet 22 is blocked from moving to the second case unit 30 by the sterilization support unit 171 and moves to the safety fan module 70 . The air flow rate is increased to improve the air purification performance of the portable air purifier 1 having the safety fan module.

The support part 176 protrudes upward from the center of the sterilization support part 171 to support the lower part of the irradiation part 180, and various modifications are possible within the technical idea. In addition, the support portion 176 is located in the radial center of the inlet portion 22, the cross section of the support portion 176 is made of a circular shape can reduce air and friction.

The support part 176 may have a column shape protruding upward from the center of the sterilization support part 171 . In addition, the support portion 176 may have a cylindrical or conical shape. The support part 176 according to an embodiment of the present invention has a shape in which the cross section is gradually narrowed from the lower side to the upper side, and is located in the center of the first case part 20 in which the inlet part 22 is formed, so that friction with air can be minimized

The cross section of the sterilization support 171 installed to sterilize the filter unit 40 is made in a circular shape, and the air introduced through the inlet 22 rotates spirally by the inclined shape of the inlet hole 23 and supports It rotates the outside of the column 177 and moves to the upper side where the filter unit 40 is installed. That is, the sterilization unit 170 is located in the central portion of the first case unit 20, and the air introduced through the inlet unit 22 moves upward around the outer circumference of the sterilization unit 170, so the sterilization unit 170 flow resistance is reduced.

Since the center of rotation of the support part 176 and the fan member 90 and the core member 310 of the rotation support part 300 to be described later are located on a straight line in the vertical direction, the resistance to the air flow moving from the lower side to the upper side is lowered. Since the flow of air can be made more smoothly, the air purification performance of the portable air purifier 1 having the safety fan module is improved.

The irradiation unit 180 is mounted on the upper side of the support unit 176 , and may irradiate a light for sterilization in a direction toward the filter unit 40 . In addition, the irradiation unit 180 may be located on a vertical reference line penetrating the radial center of the inlet unit 22 in the vertical direction. Therefore, when the filter unit 40 is located above the irradiation unit 180, it is possible to sterilize the entire bottom area of the filter unit 40 by a relatively small number of sterilization light sources 182, thereby reducing production and maintenance costs. can do.

In addition, the irradiation unit 180 can be implemented in various modifications within the technical idea to be installed in the same position or higher than the upper end of the inlet portion (22). The irradiation unit 180 according to an embodiment of the present invention may include a printed circuit board 181 and a sterilizing light source 182 . A printed circuit board 181 is installed on the upper side of the support part 176 , and a sterilizing light source 182 for irradiating a sterilizing light is installed on the upper side of the printed circuit board 181 . The sterilization light source 182 may be a UVC LED, and in addition to this, various types of sterilization devices may be used within the technical idea for sterilizing the bacteria in the filter unit 40 .

Meanwhile, since the sterilization light source 182 of the sterilization unit 170 is located above the inlet part 22 , the sterilization light source 182 is prevented from being irradiated to the outside of the first case part 20 through the inlet part 22 . can do.

[Rotation support part]

The rotation support unit 300 is connected to at least one of the second case body 31 and the tube expansion member 32 , and various modifications can be made within the technical idea of rotatably supporting the discharge unit 140 . In addition, the rotation support unit 300 may rotatably support the discharge unit 140 at the center of the discharge port 24 located inside the pipe expansion member 32 . The rotation support part 300 according to an embodiment of the present invention may include at least one of a core member 310 , a core support part 350 , and a ball joint 360 .

The core member 310 is positioned below the discharge unit 140 for controlling the discharge direction of air, and may extend from the center of the discharge port 24 toward the discharge unit 140 . The core member 310 is positioned in the radial center of the second case 30 .

The cross section of the lower portion of the core member 310 is circular, and coincides with the central portion of the safety fan module 70 to be described later. That is, the support plate 81 positioned in the radial center of the safety fan module 70 is positioned below the core member 310 . Therefore, the air moving upward through the outer periphery of the support plate 81 moves upward along the outer side of the core member 310 and moves to the inside of the discharge unit 140, thereby reducing the flow resistance of the air to increase the air cleaning efficiency. can be improved

Since the lower surface of the core member 310 facing the support plate 81 of the safety fan module 70 has the same or smaller area as the support plate 81, the air passing through the safety fan module 70 is It is in contact with the lower portion of the member 310 and it is possible to prevent an increase in flow resistance. The cross-sectional area of the lower end of the core member 310 is equal to or smaller than the cross-sectional area of the support plate 81 of the safety fan module 70 , and the core member 310 is positioned above the support plate 81 in the first direction.

In addition, since the core member 310 is formed in a cone shape toward the upper side, the frictional area with the air moving outside the core member 310 is minimized, and the air cleaning efficiency can be improved by reducing friction with the air. .

Since the core support part 350 extends to the outside of the core member 310 and is connected to the housing part 10 , the movement of the core support part 350 and the core member 310 is restricted.

In addition, the core support part 350 according to an embodiment of the present invention may be located above the connection support 82 of the safety fan module 70 to be described later. For example, when four connection supports 82 are installed at intervals of 90 degrees with respect to the support plate 81 , four core support units 350 are also installed at intervals of 90 degrees with respect to the core member 310 . The connecting support 82 is positioned at the lower side of the core support 350 , and when viewed from the upper side of the core support 350 , the core support 350 and the connecting support 82 are installed in an overlapping shape.

Therefore, the air that passes through the outside of the connection support 82 and moves upward passes through the outside of the core support part 350 located above the connection support 82, so it minimizes friction generated during air movement to improve air cleaning efficiency. can be improved

Four or more core support parts 350 according to another embodiment of the present invention may be radially installed around the core member 310 . In addition, in a state in which the core support part 350 is connected to the rim member having a separate ring shape, various modifications such as the rim member can be fixed to the housing part 10 are possible.

The ball joint 360 is coupled to the core member 310 , and various modifications are possible within the technical idea of rotatably supporting the discharge unit 140 . The end of the ball joint 360 according to an embodiment of the present invention has a spherical shape, and may be coupled to the inner side of the discharge unit 140 to rotatably support the discharge unit 140 . The upper side of the ball joint 360 has a spherical shape, and the body of the bar-shaped ball joint 360 extending from the upper side of the spherical shape to the lower side is a core member 310 through a hole provided on the upper side of the core member 310 . is inserted and fixed inside the The ball joint 360 and the core member 310 may be fixed by various fixing methods, such as being fixed by screw fastening, fixed by a pin fastening method, or fixed by an adhesive.

[Air flow of portable air purifier]

20 is a cross-sectional view showing the flow of air passing through the portable air purifier according to an embodiment of the present invention, and FIG. 22 is a sterilization unit ( 170) is a plan view showing a state in which it rotates and moves in a spiral, and FIG. 23 is a cross-sectional view showing air passing through the safety fan module 70 according to an embodiment of the present invention.

Hereinafter, an air flow aspect of the portable air purifier according to the present embodiment will be described with reference to FIGS. 20 to 22 .

Since the inlet part 22 for sucking external air is installed along the outer periphery of the first case part 20 , the air outside the first case part 20 passes through the inlet part 22 to the first case part (20) is moved to the inside of the intake flow rate of air can be increased.

By the operation of the safety fan module 70, air outside the portable air purifier 1 having the safety fan module is introduced into the portable air purifier 1 having the safety fan module. At this time, the air outside the portable air purifier 1 having a safety fan module passes through the inlet hole 23 installed in an inclined shape to form a spiral air flow that rotates around the outer circumference of the sterilization support unit 171 .

The air, which is introduced into the first case 20 and rotates spirally, ascends, passes through the filter unit 40, and in this process, physical particles such as dust/fine dust/ultra-fine dust, etc. contained in the air, odor Chemicals such as particles/toxic gases, and microorganisms such as bacteria/viruses can be filtered out.

Since the filter unit 40 and the safety fan module 70 are arranged in a straight line in the vertical direction, effective air intake and filtering can be achieved while a flow loss is minimized.

The air that has passed through the filter unit 40, that is, the purified air, passes through the safety unit 400 provided at the lower part of the safety fan module 70 and moves to the suction unit 136 . At this time, since the cross-sectional area of the safety unit 400 positioned in the air flow region 445 is minimized, a decrease in the flow rate of air passing through the filter unit 40 to the suction unit 136 can be minimized.

In addition, since an object moving from the filter unit 40 to the suction unit 136 is caught in the blocking unit 410 and the safety support 430 provided in the safety unit 400, damage to the fan member 90 can be prevented. Also, it is possible to prevent a safety accident that occurs when a finger is caught on the fan member 90 .

On the other hand, the flow of air toward the suction unit 136 may be guided by the bell mouth 132, whereby a smooth air inflow to the safety fan module 70 may be induced. The air introduced into the safety fan module 70 is discharged to the upper side of the safety fan module 70 . The air discharged to the upper side of the safety fan module 70 may be discharged in the direction of a dead flow. Here, the direction of the current may be defined as an upward diagonal direction.

Air sucked into the lower central portion of the safety fan module 70 moves in an upwardly inclined direction through the space between the hub 100 where the fan blades 110 are located and the shroud 120 . And the air moving upward along the side support part 84 installed in the vertical direction has straightness toward the upper side.

A rotational wind in which some of the air moved to the rear of the fan member 90 by the rotation of the fan member 90 goes back to the inlet of the fan member 90 through the space between the fan member 90 and the fan base 130 . In order to prevent the phenomenon, a bell mouse 132 is installed. The bell mouse 132 surrounds the inlet protrusion 121 of the shroud 120 in a hemispherical shape and is installed apart from the inlet protrusion 121 at a set interval.

In addition, the second inclined surface 134 and the shroud 120 of the protruding rib 133 are installed in parallel, and the gap between the second inclined surface 134 and the shroud 120 is formed as small as possible to prevent a cyclonic phenomenon. do.

In addition, the first inclined surface 86 formed on the upper side of the inner guide part 85 is inclined at the same angle as the second inclined surface 134 , and connects the side support part 84 and the protruding rib 133 .

Accordingly, the air moved to the rear of the fan member 90 by the rotation of the fan member 90 has a passage formed by the first inclined surface 86 and the second inclined surface 134 and the shroud 120 of the fan member ( Since it is smaller than the space formed between the 90 ) and the side support part 84 , it is discharged to the upper side of the fan member 90 without a rotational phenomenon.

If some air introduced between the second inclined surface 134 and the shroud 120 is also formed narrowly the passage between the bell mouth 132 and the inlet protrusion 121, between the bell mouth 132 and the inlet protrusion 121 It is possible to prevent the phenomenon of circulating air into the space.

Meanwhile, since the first inclined surface 86 inclinedly extends toward the side support part 84 , the air moving toward the upper side of the fan housing 80 through the fan member 90 moves upward along the first inclined surface 86 . Since it guides the movement to the upper side along the side support part 84 after being formed, it is possible to prevent the air from moving to the lower side of the first inclined surface 86 and generating a circulating wind.

On the other hand, the air discharged to the upper side of the safety fan module 70 flows into the inner side of the discharge unit 140 to the lower side, and is discharged to the upper side of the discharge unit 140 . Since the discharge unit 140 rotates within a set angle range, the direction of the discharged air may be adjusted according to the installation angle of the discharge unit 140 .

In addition, since the inner side of the discharge unit 140 forms a concave groove, it is possible to reduce an increase in the discharge resistance of the air whose direction is changed through the discharge unit 140 . In addition, since the filter unit 40, the safety fan module 70, and the discharge unit 140 are arranged in a straight line in the vertical direction, air flow loss is minimized and effective air intake, filtering, and discharge of purified air are performed. can be done

Since the safety fan module 70 according to the present invention uses a flow fan, the blowing performance can be maximized when the air discharge direction is in the axial direction under a fixed pressure condition. In addition, the fan base 130 maintains a constant distance from the fan member 90 and provides a cyclone prevention structure, which extends to the inner wall surface of the fan housing 80 to minimize flow loss due to rotatory wind. can

In addition, the safety fan module 70 is custom-installed on the inside of the cylindrical housing 10 compared to other fan modules using a fan of the same diameter, so there is no increase in size due to the fastening part. It is possible to miniaturize the portable air purifier provided.

And since the safety part 400 is installed successively on the fan base 130 to form a protective net on the outside of the suction part 136 , it is possible to prevent the occurrence of a safety accident, and the filter part 40 to the inside of the fan member 90 . ), etc., can be blocked to improve operational reliability.

In addition, according to the present invention, since the blocking unit 410 is not installed at the position facing the suction unit 136, the area in contact with the air moving toward the suction unit 136 is reduced, thereby improving the blowing function. .

As described above, the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed in this specification, and various methods can be obtained by those skilled in the art within the scope of the technical spirit of the present invention. It is obvious that variations can be made. In addition, although the effects according to the configuration of the present invention have not been explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the configuration should also be recognized.

1: Portable air purifier with safety fan module
10: housing unit
20: first case part 21: receiving space 22: inlet part 23: inlet hole 24: exhaust port 25: air flow path
30: second case part
40: filter unit
70: safety fan module
80: fan housing 81: support plate 82: connection support 83: wire guide 84: side support 85: inner guide 86: first inclined surface 87: projection mounting groove portion
90: fan member
DESCRIPTION OF SYMBOLS 100: Hub 101: Hub plate part 102: Shaft coupling part 103: First reinforcing protrusion 105: Inner protrusion 106: Second reinforcing protrusion 107: Skirt part
110: fan blade 111: first end 112: second end 113: first edge 114: second edge
120: shroud 121: entrance projection
130: fan base 131: base plate 132: bell mouse 133: protruding rib 134: second inclined surface 135: coupling protrusion 136: suction unit 137: hollow
140: discharge unit
150: first discharge part 152: first discharge core 154: first discharge body 156: vane
160: second discharge unit 161: second discharge core 162: second discharge body 163: discharge support
170: sterilization unit 171: sterilization support unit 176: support unit 180: irradiation unit 181: printed circuit board 182: sterilization light source
200: battery
300: rotation support 310: core member 350: core support 360: ball joint
400: safety department
410: blocking part 411: central member 412: first blocking member 413: second blocking member 414: outer member
430: safety support
440: first region 445: air flow region
450: second area

Claims (22)

a fan member rotatably installed;
a fan base installed consecutively on the fan member and guiding air inflow in a direction toward the fan member; and
A safety fan module comprising a; a safety part installed consecutively on the fan base, the safety part having a blocking part for blocking movement of an external object to the inside of the suction part provided on the fan base, and a safety support supporting the blocking part.
According to claim 1,
The suction unit is located between the hub located at the center of the fan member and the fan base, and forms a passage through which air is sucked into the fan member.
3. The method of claim 2,
The safety unit may include: a first area facing the suction unit; and
It is divided into a second area that does not face the suction unit,
The blocking part is a safety fan module located in the second area.
4. The method of claim 3,
The first area is a safety fan module in which a flow rate of air moving toward the suction unit is higher than that of the second area.
4. The method of claim 3,
The blocking unit may include: a first blocking member having an outer diameter smaller than an outer diameter of the hub; and
Safety fan module including a; a second blocking member having an inner diameter larger than the inner diameter of the fan base.
6. The method of claim 5,
The safety fan module further comprising a; the blocking part is located at the center of the hub, the central member located inside the radial direction of the first blocking member.
7. The method of claim 6,
The safety support is a safety fan module that extends radially around the central member and is connected to the first blocking member and the second blocking member.
3. The method of claim 2,
The blocking unit may include a central member positioned at the center of the hub;
a first blocking member having an outer diameter larger than the outer diameter of the central member and smaller than the outer diameter of the hub; and
and a second blocking member having an inner diameter greater than an outer diameter of the first blocking member and greater than an inner diameter of the fan base.
9. The method of claim 8,
The safety fan module further comprising a; wherein the blocking portion is larger than an outer diameter of the second blocking member and is located on an outer periphery of the second blocking member.
10. The method of claim 9,
The safety support is a safety fan module that extends radially around the central member and is connected to the first blocking member, the second blocking member, and the outer member.
10. The method of claim 9,
The central member and the first blocking member are installed at a position facing the hub,
The second blocking member and the outer member are installed in a position facing the fan base safety fan module.
a fan housing having an inner working space;
a fan member rotatably installed inside the fan housing;
a fan base coupled to the fan housing and guiding air inflow in a direction toward the fan member; and
a safety part installed consecutively on the fan base and having a blocking part that blocks an external object from moving inside the suction part provided on the fan base, and a safety support supporting the blocking part;
The safety fan module is installed in a position where the blocking part does not face the air flow area formed between the hub positioned at the center of the fan member and the fan base.
13. The method of claim 12,
The blocking unit may include a central member positioned at the center of the hub;
a first blocking member having an outer diameter larger than the outer diameter of the central member and smaller than the outer diameter of the hub;
a second blocking member greater than an outer diameter of the first blocking member and having an inner diameter greater than an inner diameter of the fan base; and
The safety fan module comprising a; an outer member larger than the outer diameter of the second blocking member and located on the outer periphery of the second blocking member.
14. The method of claim 13,
The safety support is a safety fan module that extends radially around the central member and is connected to the first blocking member, the second blocking member, and the outer member.
a housing portion having an inlet through which air is introduced and an outlet through which air is discharged, the housing portion having an air flow path formed therein;
a fan housing fixed to the inside of the housing and having an operating space;
a fan member rotatably installed inside the fan housing;
a fan base coupled to the fan housing and guiding air inflow in a direction toward the fan member;
a filter part positioned between the fan base and the inlet part and purifying the air flowing into the inlet part; and
Safety including; a safety unit installed between the filter unit and the fan base, the blocking unit blocking the movement of an external object to the inside of the suction unit provided in the fan base, and a safety support supporting the blocking unit; A portable air purifier equipped with a fan module.
16. The method of claim 15,
and a safety fan module installed in a position where the blocking part does not face the air flow area formed between the hub positioned at the center of the fan member and the fan base.
17. The method of claim 16,
The blocking unit may include: a first blocking member having an outer diameter smaller than an outer diameter of the hub; and
A portable air purifier having a safety fan module including a second blocking member having an inner diameter greater than the inner diameter of the fan base.
18. The method of claim 17,
The blocking unit is located at the center of the hub and includes a central member located inside the first blocking member.
19. The method of claim 18,
The blocking portion is larger than the outer diameter of the second blocking member, the portable air purifier having a safety fan module further comprising an outer member located on the outer periphery of the second blocking member.
20. The method of claim 19,
The safety support includes a safety fan module extending radially around the central member and connected to the first blocking member, the second blocking member, and the outer member.
16. The method of claim 15,
The fan member may include a hub positioned at the center of the fan housing and rotating by receiving external power;
a plurality of fan blades having one end connected to the hub and spaced apart from each other at equal intervals along an outer circumferential surface of the hub; and
A portable air purifier having a safety fan module including a shroud connected to the other end of the fan blade and installed in an annular shape, the shroud being spaced apart from the fan base.
16. The method of claim 15,
The fan base has a plate shape extending in an annular shape, and a base plate having a hollow for air movement in the center; and
A portable air purifier having a safety fan module including; a bell mouse disposed in an annular shape along the inner side of the base plate facing the hollow, and surrounding the end of the fan member.

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