KR20220053539A - Air cean fan - Google Patents

Abstract

The present invention relates to an air clean fan, which comprises: a base which rests on the ground; a base cabinet disposed on the upper side of the base and having a suction port through which air is sucked; a rotary motor disposed on the base and receiving applied power to generate a driving force; and a power transmission member transmitting the driving force of the rotary motor to the base cabinet and rotating the base cabinet with respect to the base. The present invention has the advantage of being able to rotate the entire rotary assembly in which the suction port and discharge port are disposed based on the base.

Description

Air clean fan

The present invention relates to an air clean fan that discharges air through the Coanda effect.

In general, a blower is a mechanical device that drives a fan to generate air flow. A conventional blower includes a fan that rotates about a rotating shaft, and a motor rotates the fan to generate wind.

The conventional fan using an axial fan has the advantage of providing wind over a wide range, but has a problem in that it cannot intensively provide wind in a narrow area.

Korean Patent Registration No. 10-1331487 describes a fan that provides wind to a user using the Coanda effect.

Since the conventional fan uses the Coanda effect, there is a problem of intensively providing wind in a narrow area.

Republic of Korea Patent Registration No. 10-1331487

An object of the present invention is to provide a rotating structure of an air clean fan.

An object of the present invention is to provide an air clean fan capable of providing air to a user through the Coanda effect.

An object of the present invention is to provide an air clean fan capable of providing a horizontal air flow and an ascending air flow.

According to the present invention, the entire rotary assembly in which the inlet and outlet are disposed can be rotated with respect to the base.

The present invention can rotate the air discharging direction (S1) of the rotating assembly in the horizontal direction through the driving force of the rotating motor disposed on the base.

The present invention is a base that is seated on the ground; a base cabinet disposed on the upper side of the base and having a suction port through which air is sucked; a rotation motor disposed on the base and receiving applied power to generate a driving force; and a power transmission member that transmits the driving force of the rotary motor to the base cabinet and rotates the base cabinet with respect to the base.

It may further include a; a rotation shaft disposed on at least one of the base or the base cabinet and rotatably assembled with the other one, and the rotation assembly may be rotated based on the rotation shaft.

The rotation shaft may be disposed in a vertical direction, and the base cabinet may be rotated in a horizontal direction.

The power transmission member may include a driving gear coupled to the motor shaft; and a rack gear disposed on the base cabinet.

The base case may include: a base outer disposed on the upper side of the base, having a space therein, and having the suction port formed on a side wall; and a base inner disposed above the base and disposed inside the base outer.

The rotation motor may be disposed inside the base inner, and the rotation shaft may be rotatably assembled with the base inner.

The rotating assembly may include: a blowing space in which the first tower and the second tower are spaced apart; a first outlet formed in the first tower and discharging the sucked air to the blowing space; and a second discharge port formed in the second tower and discharging the sucked air to the blowing space.

a light emitting member receiving applied power to emit light; a printed circuit board on which the light emitting member is installed; It may further include a light-transmitting member for guiding the light generated by the light-emitting member out of the base cabinet.

The error clean fan according to the present invention has one or more of the following effects.

First, the present invention has the advantage of being able to rotate the entire rotary assembly in which the suction port and the discharge port are disposed based on the base.

Second, the present invention has the advantage of being able to rotate the air discharge direction (S1) of the rotary assembly in the horizontal direction through the driving force of the rotary motor disposed on the base.

Third, the present invention has an advantage in that the load of the rotating assembly transmitted to the motor shaft can be minimized by separating the rotating shaft and the motor shaft.

Fourth, the present invention has the advantage of arranging the light-transmitting member between the base cabinet and the base in which relative rotation occurs, and intuitively transmitting the rotation range of the rotating assembly through the emitted light.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of an air clean fan according to a first embodiment of the present invention.
FIG. 2 is an exemplary operation view of FIG. 1 .
3 is a front view of FIG. 2 ;
FIG. 4 is a plan view of FIG. 3 .
FIG. 5 is a right sectional view of FIG. 2 .
FIG. 6 is a front cross-sectional view of FIG. 2 .
7 is a partially exploded perspective view showing the inside of the second tower of FIG. 2 .
FIG. 8 is a right side view of FIG. 7 .
9 is a plan cross-sectional view taken along line IX-IX of FIG. 3 .
FIG. 10 is a bottom cross-sectional view taken along line IX-IX of FIG. 3 .
11 is a plan sectional view showing the airflow converter of FIG.
12 is a perspective view illustrating a lower portion of the case of FIG. 6 .
13 is a plan view of FIG. 12 .
14 is a front view of FIG. 12 ;
FIG. 15 is a front cross-sectional view of FIG. 14 .
FIG. 16 is a side cross-sectional view of FIG. 14 .
17 is an exemplary view showing the rotation operation of the air clean fan according to the first embodiment of the present invention.
18 is an exemplary view showing the horizontal air flow of the air clean fan according to the first embodiment of the present invention.
19 is an exemplary view showing an upward airflow of the air clean fan according to the first embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

1 is a perspective view of an air clean fan according to a first embodiment of the present invention, FIG. 2 is an exemplary operation view of FIG. 1 , FIG. 3 is a front view of FIG. 2 , and FIG. 4 is a plan view of FIG. 3 .

1 to 4 , the air clean fan 1 according to an embodiment of the present invention includes a case 100 providing an external appearance. The case 100 includes a base case 150 on which the filter 200 is installed, and a tower case 140 for discharging air through the Coanda effect.

In addition, the tower case 140 includes a first tower 110 and a second tower 120 that are arranged separately in the form of two pillars. In this embodiment, the first tower 110 is disposed on the left side, and the second tower 120 is disposed on the right side.

The first tower 110 and the second tower 120 are spaced apart, and a blowing space 105 is formed between the first tower 110 and the second tower 120 .

In this embodiment, the blowing space 105 has front, rear, and upper openings, and the upper and lower ends of the blowing space 105 are formed to have the same spacing.

The tower case 140 including the first tower, the second tower and the blowing space is formed in a truncated cone shape.

The discharge ports 117 and 127 respectively disposed in the first tower 110 and the second tower 120 discharge air to the blowing space 105 . When it is necessary to distinguish the outlets, the outlet formed in the first tower 110 is referred to as a first outlet 117 , and the outlet formed in the second tower 120 is referred to as a second outlet 127 .

The first discharge port and the second discharge port are disposed within the height of the blowing space, and a direction traversing the blowing space 105 is defined as an air discharge direction.

Since the first tower 110 and the second tower 120 are disposed on the left and right, the air discharge direction may be formed in the front-rear direction and the vertical direction in this embodiment.

That is, the air discharging direction crossing the blowing space 105 includes a first air discharging direction S1 arranged in a horizontal direction and a second air discharging direction S2 formed in an up-down direction.

The air flowing in the first air discharging direction S1 is referred to as a horizontal airflow, and the air flowing in the second air discharging direction S2 is referred to as an upward airflow.

It should be understood that the horizontal air flow does not mean that the air flows only in the horizontal direction, but that the flow rate of the air flowing in the horizontal direction is greater. Likewise, it should be understood that the updraft flow does not mean that the air flows only in the upward direction, but that the flow rate of the air flowing in the upward direction is greater.

In this embodiment, the upper gap and the lower gap of the blowing space 105 are formed to be the same. Unlike the present embodiment, the upper gap of the blowing space 105 may be formed to be narrower or wider than the lower gap.

By forming the left and right widths of the blowing space 105 uniformly, the flow of air flowing in the front of the blowing space can be formed more uniformly.

For example, when the width of the upper side is different from the width of the lower side, the flow velocity of the wide side may be formed low, and a deviation of the velocity may be generated based on the vertical direction. When the air flow velocity deviation occurs in the vertical direction, the arrival length of the air may vary.

After the air discharged from the first discharge port and the second discharge port is merged in the blowing space 105, it may flow to the user.

That is, in the present embodiment, the discharge air of the first discharge port 117 and the discharge air of the second discharge port 127 do not individually flow to the user, but the discharge air of the first discharge port 117 and the second discharge port 127 ) is merged in the blowing space 105 and then provided to the user.

The blowing space 105 may be used as a space in which the discharge air is mixed. In addition, the air behind the blowing space may also flow into the blowing space by the discharge air discharged to the blowing space 105 .

Since the discharge air of the first discharge port 117 and the discharge air of the second discharge port 127 merge in the blowing space, the straightness of the discharge air can be improved. In addition, by combining the discharge air of the first discharge port 117 and the discharge air of the second discharge port 127 in the blowing space, the air around the first tower and the second tower can also indirectly flow in the air discharge direction.

In this embodiment, the first air discharge direction S1 is formed from the rear to the front, and the second air discharge direction S2 is formed from the lower side to the upper side.

The upper end 111 of the first tower 110 and the upper end 121 of the second tower 120 are spaced apart for the second air discharge direction S2. That is, the air discharged in the second air discharge direction S2 does not interfere with the case of the air clean fan 1 .

And for the first air discharge direction (S1), the front end 112 of the first tower 110 and the front end 122 of the second tower 120 are spaced apart, the rear end of the first tower 110 ( 113) and the rear end 123 of the second tower 120 are also spaced apart.

The surface facing the blowing space 105 in the first tower 110 and the second tower 120 is referred to as an inner surface, and a surface not facing the blowing space 105 is referred to as an outer surface.

The outer wall 114 of the first tower 110 and the outer wall 124 of the second tower 120 are disposed in opposite directions, and the inner wall 115 of the first tower 110 and the second tower ( The inner walls 125 of 120 are opposed to each other.

When it is necessary to separate the inner walls 115 and 125 , the inner surface of the first tower is referred to as a first inner wall 115 , and the inner surface of the second tower is referred to as a second inner wall 125 .

Similarly, when it is necessary to separate the outer walls 114 and 124 , the outer surface of the first tower is referred to as the first outer wall 114 , and the outer surface of the second tower is referred to as the second outer wall 124 .

The first tower 110 and the second tower 120 are formed in a streamlined shape with respect to the air flow direction.

Specifically, the first inner wall 115 and the first outer wall 114 are formed in a streamline with respect to the front-rear direction, and the second inner wall 125 and the second outer wall 124 are formed in a streamline with respect to the front-rear direction. do.

The first outlet 117 is disposed on the first inner wall 115 , and the second outlet 127 is disposed on the second inner wall 125 .

The shortest distance between the first inner wall 115 and the second inner wall 125 is referred to as B0. The discharge ports 117 and 127 are located on the rear side of the shortest distance B0.

A distance between the front end 112 of the first tower 110 and the front end 122 of the second tower 120 is referred to as a first separation distance B1, and the rear end 113 and the second end of the first tower 110 The separation distance of the rear end 123 of the tower 120 is referred to as a second separation distance B2.

In this embodiment, B1 and B2 are formed identically. Unlike the present embodiment, any one of B1 and B2 may be formed to have a longer length.

The first outlet 117 and the second outlet 127 are disposed between the B0 and B2.

The first outlet 117 and the second outlet 127 are preferably disposed closer to the rear end 113 of the first tower 110 and the rear end 123 of the second tower 120 than the B0.

The closer the discharge ports 117 and 127 are to the rear ends 113 and 123, the easier it is to control the airflow through the Coanda effect, which will be described later.

The inner wall 115 of the first tower 110 and the inner wall 125 of the second tower 120 directly provide the Coanda effect, and the outer wall 114 of the first tower 110 and the second 2 The outer wall 124 of the tower 120 indirectly provides the Coanda effect.

The inner walls 115 and 125 directly guide the air discharged from the outlets 117 and 127 to the front ends 112 and 122 .

That is, the air discharged from the discharge ports 117 and 127 directly provides a horizontal airflow.

Indirect air flow is also generated in the outer walls 114 and 124 due to the air flow in the blowing space 105 .

The outer walls 114 and 124 induce a Coanda effect on the indirect air flow and guide the indirect air flow to the front ends 112 and 122 .

The left side of the blowing space is blocked by the first inner wall 115 and the right side of the blowing space is blocked by the second inner wall 125 , but the upper side of the blowing space 105 is open.

An airflow converter to be described later may convert a horizontal airflow passing through the blowing space into an upward airflow, and the rising airflow may flow to an open upper side of the blowing space. The updraft can prevent the discharge air from flowing directly to the user and actively convection the indoor air.

In addition, the width of the discharge air can be adjusted through the flow rate of the air joined in the blowing space.

By forming the upper and lower lengths of the first outlet 117 and the second outlet 127 much longer than the left and right widths B0, B1, and B2 of the blowing space, the outlet air of the first outlet and the outlet air of the second outlet are You can induce them to join in the blowing space.

1 to 3 , the case 100 of the air clean fan 1 according to the embodiment of the present invention includes a base case 150 to which a filter is detachably installed, and an upper side of the base case 150 . and a tower case 140 supported on the base case 150 .

The tower case 140 includes the first tower 110 and the second tower 120 .

In this embodiment, a tower base 130 connecting the first tower 110 and the second tower 120 is disposed, and the tower base 130 is assembled to the base case 150 . The tower base 130 may be manufactured integrally with the first tower 110 and the second tower 120 .

Unlike this embodiment, the first tower 110 and the second tower 120 may be directly assembled to the base case 150 without the tower base 130 , and may be manufactured integrally with the base case 150 . may be

The base case 150 forms a lower portion of the air clean fan 1 , and the tower case 140 forms an upper portion of the air clean fan 1 .

The air clean fan 1 may suck in ambient air from the base case 150 and discharge air filtered from the tower case 140 . The tower case 140 may discharge air at a position higher than the base case 150 .

The air clean fan 1 has a columnar shape whose diameter decreases toward the top. The air clean fan 1 may have a conical or truncated cone shape as a whole.

Unlike this embodiment, the air clean fan 1 may include both towers in which two towers are arranged. In addition, unlike the present embodiment, the cross section does not need to be in a form that becomes narrower toward the upper side.

However, when the cross section becomes narrower toward the upper side as in the present embodiment, the center of gravity is lowered and the risk of overturning due to external impact is reduced.

For the convenience of assembly, in this embodiment, the base case 150 and the tower case 140 are separated and manufactured.

Unlike the present embodiment, the base case 150 and the tower case 140 may be integrated. For example, the base case and the tower case may be manufactured in the form of a front case and a rear case in which they are integrated and then assembled.

In this embodiment, the base case 150 is formed to gradually decrease in diameter toward the top. The tower case 140 is also formed to gradually decrease in diameter toward the top.

The outer surfaces of the base case 150 and the tower case 140 are formed to be reversed. In particular, the lower end of the tower base 130 and the upper end of the base case 150 are in close contact, and the outer surface of the tower base 130 and the outer surface of the base case 150 form a continuous surface.

To this end, the diameter of the lower end of the tower base 130 may be the same as or slightly smaller than the upper diameter of the base case 150 .

The tower base 130 distributes the filtered air supplied from the base 150 tower, and provides the distributed air to the first tower 110 and the second tower 120 .

The tower base 130 connects the first tower 110 and the second tower 120 , and the blowing space 105 is disposed above the tower base 130 .

In addition, the discharge ports 117 and 127 are disposed on the upper side of the tower base 130 , and the rising air flow and the horizontal air flow are formed on the upper side of the tower base 130 .

In order to minimize friction with air, the upper surface 131 of the tower base 130 is formed in a curved surface. In particular, the upper surface is formed as a curved surface concave downward, and is formed to extend in the front-rear direction. One side 131a of the upper side surface 131 is connected to the first inner wall 115 , and the other side 131b of the upper side surface 131 is connected to the second inner wall 125 .

Referring to FIG. 4 , when viewed from a top view, the first tower 110 and the second tower 120 are symmetrical with respect to the center line L-L'. In particular, the first outlet 117 and the second outlet 127 are symmetrically disposed with respect to the center line L-L'.

The center line L-L' is an imaginary line between the first tower 110 and the second tower 120 , and is disposed in the front-rear direction in this embodiment, and is disposed to pass through the upper side surface 131 .

Unlike the present embodiment, the first tower 110 and the second tower 120 may be formed in an asymmetrical shape. However, it is more advantageous to control the horizontal airflow and the rising airflow if the first tower 110 and the second tower 120 are symmetrically disposed with respect to the center line L-L'.

FIG. 5 is a right sectional view of FIG. 2 , and FIG. 6 is a front sectional view of FIG. 2 .

1, 5 or 6, the air clean fan 1 includes a filter 200 disposed inside the case 100, and a filter 200 disposed inside the case 100 to discharge air through the outlet ( 117) and a fan device (300) for flowing to (127).

In this embodiment, the filter 200 and the fan device 300 are disposed inside the base case 150 .

The base case 150 is formed in a truncated cone shape, and has an upper side opening in this embodiment.

The base case 150 includes a base 151 seated on the ground, a base outer 152 disposed above the base 151 , a space is formed therein, and a suction port 155 .

When viewed from a top view, the base 151 is formed in a circular shape. The shape of the base 151 may be formed in various ways.

The base outer 152 is formed in the shape of a truncated cone with upper and lower sides open. In addition, a portion of the side surface of the base outer 152 is opened. An opened portion of the base outer 152 is referred to as a filter insertion hole 154 .

The case 100 further includes a cover 153 for shielding the filter insertion hole 154 . The cover 153 may be detachably assembled from the base outer 152 , and the filter 200 may be mounted or assembled to the cover 153 .

A user may remove the cover 153 to take the filter 200 out of the case 100 .

The suction port 155 may be formed in at least one of the base outer 152 and the cover 153 . In this embodiment, the suction port 155 is formed in both the base outer 152 and the cover 153 , and can suck air in 360 directions around the case 100 .

In this embodiment, the suction port 155 is formed in the shape of a hole, and the shape of the suction port 155 may be formed in various ways.

The filter 200 is formed in a cylindrical shape having a hollow in the vertical direction therein. An outer surface of the filter 200 faces the suction port 155 .

Indoor air flows through the filter 200 from the outside to the inside, and in this process, foreign substances or harmful gases in the air can be removed.

The fan device 300 is disposed above the filter 200 . The fan device 300 may flow the air that has passed through the filter 200 to the first tower 110 and the second tower 120 .

The fan device 300 includes a fan motor 310 and a fan 320 rotated by the fan motor 310 , and is disposed inside the base case 150 .

The fan motor 310 is disposed above the fan 320 , and a motor shaft of the fan motor 310 is coupled to the fan 320 disposed below.

A motor housing 330 in which the fan motor 310 is installed is disposed above the fan 320 .

In this embodiment, the motor housing 330 has a shape that surrounds the entire fan motor 310 . Since the motor housing 330 surrounds the entire fan motor 310 , it is possible to reduce flow resistance with air flowing from the lower side to the upper side.

Unlike the present embodiment, the motor housing 330 may be formed in a shape that surrounds only the lower portion of the fan motor 310 .

The motor housing 330 includes a lower motor housing 332 and an upper motor housing 334 . At least one of the lower motor housing 332 and the upper motor housing 334 is coupled to the case 100 .

In this embodiment, the lower motor housing 332 is coupled to the case 100 . After the fan motor 310 is installed on the upper side of the lower motor housing 332 , the upper motor housing 334 is covered to surround the fan motor 310 .

The motor shaft of the fan motor 310 passes through the lower motor housing 332 and is assembled to the fan 320 disposed below.

The fan 320 may include a hub to which the shaft of the fan motor is coupled, a shroud spaced apart from the hub, and a plurality of blades connecting the hub and the shroud.

After the air that has passed through the filter 200 is sucked into the shroud, it flows by being pressurized by the rotating blade. The hub is disposed above the blade, and the shroud is disposed below the blade. The hub may be formed in a downwardly concave bowl (BOWL) shape, and a lower side of the lower motor housing 332 may be partially inserted.

In this embodiment, the fan 320 is a flow fan. The four-flow fan sucks air in the center of the shaft and discharges air in the radial direction, but the discharged air is characterized in that it is inclined with respect to the axial direction.

Since the overall air flow flows from the lower side to the upper side, when air is discharged in a radial direction like a general centrifugal fan, a flow loss due to the flow direction change occurs greatly.

The airflow fan can minimize the flow loss of air by discharging air upward in the radial direction.

Meanwhile, a diffuser 340 may be further disposed above the fan 320 . The diffuser 340 guides the air flow by the fan 320 upward.

The diffuser 330 serves to further reduce the radial component in the air flow and enhance the upward direction air flow component.

The motor housing 330 is disposed between the diffuser 330 and the fan 320 .

In order to minimize the vertical installation height of the motor housing, the lower end of the motor housing 330 may be inserted into the fan 320 and overlap the fan 320 . In addition, an upper end of the motor housing 330 may be inserted into the diffuser 340 and overlap the diffuser 340 .

Here, the lower end of the motor housing 330 is disposed higher than the lower end of the fan 320 , and the upper end of the motor housing 330 is disposed lower than the upper end of the diffuser 340 .

In order to optimize the installation position of the motor housing 330 , in this embodiment, the upper side of the motor housing 330 is disposed inside the tower base 130 , and the lower side of the motor housing 330 is the base case 150 . ) is placed inside. Unlike the present embodiment, the motor housing 330 may be disposed inside the tower base 130 or the base case 150 .

Meanwhile, a suction grill 350 may be disposed inside the base case 150 . The suction grill 350 is for protecting the user and the fan 320 by blocking the intrusion of the user's finger toward the fan 320 when the filter 200 is separated.

The filter 200 is disposed on the lower side of the suction grill 350, and the fan 320 is disposed on the upper side. The suction grill 350 is formed with a plurality of through holes in the vertical direction so that air can flow.

Inside the case 100 , a space below the suction grill 350 is defined as a filter installation space 101 . A space between the suction grill 350 and the discharge ports 117 and 127 inside the case 100 is defined as a ventilation space 102 . The inner space of the first tower 110 and the second tower 120 in which the discharge ports 117 and 127 are disposed inside the case 100 is defined as the discharge space 103 .

After the indoor air is introduced into the filter installation space 101 through the suction port 155 , it is discharged to the discharge ports 117 and 127 through the ventilation space 102 and the discharge space 103 .

7 is a partially exploded perspective view showing the inside of the second tower of FIG. 2 , and FIG. 8 is a right side view of FIG. 7 .

5 to 8 , an air guide 160 for converting the flow direction of air to a horizontal direction is disposed in the discharge space 103 . A plurality of air guides 160 may be disposed.

The air guide 160 changes the direction of the air flowing from the lower side to the upper side in a horizontal direction, and the changed air flows to the outlets 117 and 127 .

When it is necessary to separate the air guides, the first air guide 161 disposed inside the first tower 110 is referred to as a first air guide 161 , and the second air guide disposed inside the second tower 120 is referred to as a second air guide 162 .

When viewed from the front, the first air guide 161 may be coupled to the inner wall and/or the outer wall of the first tower 110 . When viewed from the side, the front end 161a of the first air guide 161 is close to the first outlet 117 , and the rear end 161b is spaced apart from the rear end of the first tower 110 .

In order to guide the air flowing from the lower side to the first outlet 117, the first air guide 161 is formed in a convex curved surface from the lower side to the upper side, and the rear end 161b is greater than the front end 161a. placed low.

At least a portion of the left end 161c of the first air guide 161 may be in close contact with or coupled to the left wall of the first tower 110 . At least a portion of the right end 161d of the first air guide 161 may be in close contact with or coupled to the right wall of the first tower 110 .

Therefore, the air moving upward along the discharge space 103 flows from the rear end of the first air guide 161 to the front end.

The second air guide 162 is symmetrical to the left and right with the first air guide 161 .

When viewed from the front, the second air guide 162 may be coupled to the inner wall and/or the outer wall of the second tower 110 . When viewed from the side, the front end 162a of the second air guide 162 is close to the second outlet 127 , and the rear end 162b is spaced apart from the rear end of the second tower 120 .

In order to guide the air flowing from the lower side to the second outlet 127, the second air guide 162 has a convex curved surface from the lower side to the upper side, and the rear end 162b is greater than the front end 162a. placed low.

At least a portion of the left end 162c of the second air guide 162 may be in close contact with or coupled to the left wall of the second tower 120 . At least a portion of the right end 162d of the second air guide 162 may be in close contact with or coupled to the right wall of the first tower 110 .

Next, referring to FIG. 5 or 8 , the first outlet 117 and the second outlet 127 according to the present embodiment are arranged to extend in the vertical direction.

The first outlet 117 is disposed between the front end 112 and the rear end 113 of the first tower 110 , and is disposed close to the rear end 113 . Air discharged from the first outlet 117 may flow along the first inner wall 115 due to the Coanda effect, and may flow toward the front end 112 .

The first discharge port 117 has a first border 117a forming an edge on the air discharge side (front end in this embodiment), and a second border 117b forming an edge on the air discharge side (rear end in this embodiment) opposite to the air discharge side (rear end in this embodiment). ), an upper border 117c forming an upper edge of the first outlet 117 , and a lower border 117d forming a lower edge of the first outlet 117 .

In this embodiment, the first border 117a and the second border 117b are disposed parallel to each other. The upper border 117c and the lower border 117d are disposed parallel to each other.

The first border 117a and the second border 117b are inclined with respect to the vertical direction (V). In addition, the rear end 113 of the first tower 110 is also inclined with respect to the vertical direction (V).

In this embodiment, the inclination a1 of the first border 117a and the second border 117b with respect to the vertical direction V is formed at 4 degrees, and the inclination a2 of the rear end 113 is formed at 3 degrees. . That is, the inclination a1 of the outlet 117 is formed to be greater than the inclination of the outer surface of the tower.

The second outlet 127 is symmetrical with the first outlet 117 .

The second discharge port 127 includes a first border 127a forming an edge on the air discharge side (front end in this embodiment), and a second border 127b forming an edge on the air discharge side (rear end in this embodiment). ), an upper border 127c forming an upper edge of the second outlet 127 , and a lower border 127d forming a lower edge of the second outlet 127 .

The first border 127a and the second border 127b are inclined in the vertical direction V, and the rear end 113 of the first tower 110 is also inclined in the vertical direction V. And the inclination (a1) of the outlet 127 is formed to be greater than the inclination (a2) of the outer surface of the tower.

* FIG. 9 is a plan cross-sectional view taken along line IX-IX of FIG. 3 , and FIG. 10 is a bottom cross-sectional view taken along line IX-IX of FIG. 3 .

5, 9 or 10 , the first outlet 117 of the first tower 110 is disposed to face the second tower 120, and the second outlet of the second tower 120 127 is disposed to face the first tower (110).

The air discharged from the first outlet 117 causes the air to flow along the inner wall 115 of the first tower 110 through the Coanda effect. The air discharged from the second outlet 127 causes the air to flow along the inner wall 125 of the second tower 120 through the Coanda effect.

In this embodiment, a first discharge case 170 and a second discharge case 180 are further included.

The first discharge port 117 is formed in the first discharge case 170 , and the first discharge case 170 is assembled to the first tower 110 . The second discharge port 127 is formed in the second discharge case 180 , and the second discharge case 180 is assembled to the second tower 120 .

The first discharge case 170 is installed to penetrate the inner wall 115 of the first tower 110 , and the second discharge case 180 forms the inner wall 125 of the second tower 120 . installed penetratingly.

A first discharge opening 118 in which the first discharge case 170 is installed is formed in the first tower 110 , and the second discharge case 180 is installed in the second tower 120 . 2 The discharge opening 128 is formed.

The first discharge case 170 forms a first discharge port 117 , a first discharge guide 172 disposed on the air discharge side of the first discharge port 117 , and the first discharge port 117 are formed. and a second discharge guide 174 disposed on the opposite side of the air discharge of the first discharge port 117 .

The outer surfaces 172a and 174a of the first discharge guide 172 and the second discharge guide 174 provide a portion of the inner wall 115 of the first tower 110 .

The inside of the first discharge guide 172 is disposed to face the first discharge space 103a, and the outside is disposed to face the blowing space 105 . The inner side of the second discharge guide 174 is disposed to face the first discharge space (103a), the outside is disposed to face the blowing space (105).

The outer surface 172a of the first discharge guide 172 may be formed in a curved surface. The outer surface 172a may provide a surface continuous with the first inner wall 115 . In particular, the outer surface 172a forms a continuous curved surface with the outer surface of the first inner wall 115 .

The outer surface 174a of the second discharge guide 174 may provide a continuous surface with the first inner wall 115 . The inner surface 174b of the second discharge guide 174 may have a curved surface. In particular, the inner surface 174b forms a curved surface continuous with the inner surface of the first outer wall 115, and through this, the air in the first discharge space 103a can be guided toward the first discharge guide 172. there is.

The first discharge port 117 is formed between the first discharge guide 172 and the second discharge guide 174 , and the air in the first discharge space 103a passes through the first discharge port 117 . It is discharged to the blowing space (105).

Specifically, the air in the first discharge space 103a is discharged between the outer surface 172a of the first discharge guide 172 and the inner surface 174b of the second discharge guide 174, and the first discharge guide A discharge interval 175 is defined between the outer surface 172a of 172 and the inner surface 174b of the second discharge guide 174 . The discharge interval 175 forms a predetermined channel.

In the discharge interval 175 , the width of the middle portion 175b is narrower than that of the inlet 175a and the outlet 175c. The middle portion 175b is defined as the shortest distance between the second border 117b and the outer surface 172a.

The cross-sectional area from the inlet to the middle part 175b of the discharge interval 175 is gradually narrowed, and the cross-sectional area from the middle part 175b to the outlet 175c is wide again. The middle portion 175b is located inside the first tower 110 . When viewed from the outside, the outlet 175c of the discharge interval 175 may be seen as the discharge port 117 .

In order to induce the Coanda effect, the radius of curvature of the inner surface 174b of the second discharge guide 174 is larger than the radius of curvature of the outer surface 172a of the first discharge guide 172 .

The center of curvature of the outer surface 172a of the first discharge guide 172 is located in front of the outer surface 172a, and is formed inside the first discharge space 103a. The center of curvature of the inner surface 174b of the second discharge guide 174 is located on the side of the first discharge guide 172 and is formed inside the first discharge space 103a.

The second discharge case 180 forms a second discharge port 127 , a first discharge guide 182 disposed on the air discharge side of the second discharge port 127 , and the second discharge port 127 . and a second discharge guide 184 disposed on the opposite side of the air discharge of the second discharge port 127 .

A discharge interval 185 is formed between the first discharge guide 182 and the second discharge guide 184 .

Since the second discharge case 180 is symmetrical to the left and right with the first discharge case 170 , a detailed description thereof will be omitted.

Meanwhile, the air clean fan 1 may further include an air flow converter 400 for changing the air flow direction of the blowing space 105 .

11 is a plan sectional view showing the airflow converter of FIG.

An airflow converter 400 capable of forming an upward airflow will be described with reference to FIG. 7 or 11 .

In this embodiment, the airflow converter 400 may convert the horizontal airflow flowing through the blowing space 105 into an upward airflow.

The airflow converter 400 includes a first airflow converter 401 disposed in the first tower 110 and a second airflow converter 402 disposed in the second tower 120 . The first airflow converter 401 and the second airflow converter 402 are symmetrical and have the same configuration.

The airflow converter 400 is disposed in a tower, and a guide board 410 protruding into the blowing space 105 and a guide motor 420 providing a driving force for movement of the guide board 410 . ), a power transmission member 430 for providing the driving force of the guide motor 420 to the guide board 410, and a board guider disposed inside the tower and guiding the movement of the guide board 410 ( 440).

The guide board 410 may be hidden inside the tower, and may protrude into the blowing space 105 when the guide motor 420 is operated.

In this embodiment, the guide board 410 includes a first guide board 411 disposed on the first tower 110 and a second guide board 412 disposed on the second tower 120 .

To this end, a board slit 119 penetrating the inner wall 115 of the first tower 110 is formed, and a board slit 129 penetrating the inner wall 125 of the second tower 120 is formed. each is formed

The board slit 119 formed in the first tower 110 is referred to as a first board slit 119 , and the board slit formed in the second tower 120 is referred to as a second board slit 129 .

The first board slit 119 and the second board slit 129 are symmetrically disposed. The first board slit 119 and the second board slit 129 are formed to elongate in the vertical direction. The first board slit 119 and the second board slit 129 may be disposed to be inclined with respect to the vertical direction (V).

The front end 112 of the first tower 110 is formed with an inclination of 3 degrees, and the first board slit 119 is formed with an inclination of 4 degrees. The front end 122 of the second tower 120 is formed with an inclination of 3 degrees, and the second board slit 129 is formed with an inclination of 4 degrees.

The guide board 410 may be formed in a flat or curved plate shape. The guide board 410 may be formed to extend long in the vertical direction, and may be disposed in front of the blowing space 105 .

The guide board 410 may block the horizontal airflow flowing into the blowing space 105 to change the direction in the upward direction.

In this embodiment, the inner end 411a of the first guide board 411 and the inner end 412a of the second guide board 412 may come into contact with or close to each other to form an updraft. Unlike this embodiment, one guide board 410 may be in close contact with the opposite tower to form an upward airflow.

When the airflow converter 400 is not operated, the inner end 411a of the first guide board 411 closes the first board slit 119, and the inner end of the second guide board 412 ( 412a) may close the second board slit 129 .

When the airflow converter 400 is operated, the inner end 411a of the first guide board 411 penetrates the first board slit 119 and protrudes into the blowing space 105, and the second guide board The inner end 412a of the 412 may protrude into the blowing space 105 through the second board slit 129 .

In this embodiment, the first guide board 411 and the second guide board 412 protrude into the blowing space 105 by a rotational operation. Unlike the present embodiment, at least one of the first guide board 411 and the second guide board 412 may be linearly moved in a slide manner to protrude into the blowing space 105 .

When viewed from a top view, the first guide board 411 and the second guide board 412 are formed in an arc shape. The first guide board 411 and the second guide board 412 form a predetermined radius of curvature, and the center of curvature is located in the blowing space 105 .

When the guide board 410 is hidden inside the tower, it is preferable that the radially inner volume of the guide board 410 is larger than the radially outer volume.

* The guide board 410 may be formed of a transparent material. A light emitting member such as an LED may be disposed on the guide board 410 , and the entire guide board 410 may emit light through the light generated from the light emitting member. The light emitting member may be disposed in the discharge space 103 inside the tower, and disposed at the outer end of the guide board 410 .

The guide motor 420 includes a first guide motor 421 providing a rotational force to the first guide board 411 and a second guide motor 422 providing a rotational force to the second guide board 412 . include

The first guide motor 421 may be disposed on the upper side and the lower side, respectively, and, if necessary, may be divided into an upper first guide motor 421 and a lower first guide motor 421 .

The second guide motor 422 may also be disposed on the upper side and the lower side, respectively, and, if necessary, may be divided into an upper second guide motor 422 and a lower second guide motor 422 .

In this embodiment, the rotation shafts of the first guide motor 421 and the second guide motor 422 are disposed in a vertical direction, and a rack-and-pinion structure is used to transmit a driving force.

The power transmission member 430 includes a driving gear 431 coupled to the motor shaft of the guide motor 420 , and a rack 432 coupled to the guide board 410 .

The driving gear 431 uses a pinion gear and rotates in the horizontal direction.

The rack 432 is coupled to the inner surface of the guide board 410 . The rack 432 may be disposed in the discharge space 103 and pivotally moved together with the guide board 410 .

The board guider 440 may guide the turning movement of the guide board 410 . The board guider 440 may support the guide mode 410 when the guide board 410 pivots.

In this embodiment, the board guider 440 is disposed on the opposite side of the rack 432 with respect to the guide board 410 . The board guider 440 may support the force applied from the rack 432 . Unlike this embodiment, a groove corresponding to the turning radius of the guide board may be formed in the board guider 440, and the guide board may be moved along the groove.

The board guider 440 may be assembled to the outer walls 114 and 124 of the tower. The board guider 440 may be disposed radially outward relative to the guide board 410 , thereby minimizing contact with the air flowing through the discharge space 103 .

12 is a perspective view showing the lower case of FIG. 6 , FIG. 13 is a plan view of FIG. 12 , FIG. 14 is a front view of FIG. 12 , FIG. 15 is a front sectional view of FIG. 14 , and FIG. 16 is a side sectional view of FIG. and FIG. 17 is an exemplary view showing the rotational operation of the air clean fan according to the first embodiment of the present invention.

12 to 17 , the air clean fan 1 has a rotation structure 500 configured to rotate the first tower 110 and the second tower 120 . In this embodiment, the rotating structure is disposed on the base case 150 .

The rotation structure 500 includes a rotation motor 510 , a power transmission member 540 , and a bearing 530 . The rotation shaft 511 of the rotation structure 500 may be disposed in a vertical direction, and the case 100 excluding the base 151 may be rotated in a horizontal direction based on the rotation shaft 511 .

A structure rotated by the rotation motor 510 is defined as a rotation assembly 2 .

The rotating assembly (2) includes a structure except for the base in the base case (150). The rotating assembly 2 includes a tower case 140 and all components installed inside the tower case 140 . The rotary assembly 2 may include all parts of the base case 150 except for the components assembled to the base 151 . For example, it may include a filter 200 and a fan device 300 installed inside the base case 150 .

In this embodiment, the motor shaft 515 of the rotary motor 510 is disposed in the horizontal direction. The rotation shaft 511 and the motor shaft 515 may be configured as one.

In this case, since the load of the case 100 may be concentrated on the motor shaft 515 , it may be a cause of failure, and operation reliability may be deteriorated. Therefore, in the present embodiment, the rotation shaft 511 and the motor shaft 515 are configured separately.

In this embodiment, the driving force of the rotation motor 510 is provided to the motor shaft 515 , and the rotation shaft 511 provides the rotation center of the case 100 .

The rotation motor 510 is installed on the base 151 and rotates the structure above the base 151 . In this embodiment, the base outer 152 , the filter 200 , and the tower case 140 except for the base 151 are rotated by the driving force of the rotation motor 510 .

The base case 150 is disposed above the base 151 and further includes a base inner 156 disposed inside the base outer 152 . The base inner 156 may be coupled to the base outer 152 and rotated together with the base outer 152 .

The base inner 156 and the base outer 152 may be integrally manufactured. The base inner 156 and the base outer 152 are defined as a base cabinet.

The base cabinet may be rotated above the base 151 .

The filter 200 is disposed on the upper side of the base inner 156 , and the rotation motor 510 is disposed on the lower side of the base inner 156 . The base inner 156 may be rotated in a horizontal direction with respect to the base 151 .

The base 151 may be formed in a disk shape to facilitate rotation, and the base outer 152 may be formed in a truncated cone shape in which the filter installation space 101 is formed.

The overall shape of the base inner 156 is a cylindrical shape or a truncated cone shape, and has a diameter smaller than that of the base outer 152 .

The base inner 156 is rotated by the driving force of the rotation motor 510 . The rotation shaft 511 may be directly coupled to the base inner 156 . In this embodiment, the rotation shaft 511 is assembled to the shaft coupling member 512 , and the shaft coupling member 512 is assembled to the base inner 156 .

The base inner 156 includes an upper wall 156a and a side wall 156b.

The shaft coupling member 512 is formed in a flat plate shape, and is formed in a square shape when viewed from a top view. Preferably, the shaft coupling member 512 is not formed in a disk shape.

The shaft coupling member 512 may be inserted into the upper wall 156a of the base inner 156 and disposed at the same height as the upper wall. In this embodiment, the shaft coupling member 512 is assembled to the lower surface of the upper wall.

A bearing 530 may be further disposed to support the load of the case 100 excluding the base 151 and to reduce friction during rotation.

In this embodiment, the bearing 530 supports the base inner 156 , and by supporting the base inner 156 , it is possible to support the load of the structure of the air clean fan excluding the base 151 .

The base case 150 is disposed on the base 151 and further includes a bearing installation part 531 protruding upward from the base 151 .

The bearing installation part 531 is vertically disposed on the upper surface of the base 151 . The bearing installation part 531 may be formed in a cylindrical shape, and a space is formed therein.

The rotation motor 510 is disposed inside the bearing installation part 531 . The bearing installation part 531 is disposed to surround the rotation motor 510 .

The bearing 530 is installed on the upper end of the bearing installation part 531 . The bearing 530 is disposed between the bearing installation part 531 and the base inner 156 .

In this embodiment, the rotation shaft 511 is rotatably installed in the rotation shaft installation part 513 . Unlike the present embodiment, the rotation shaft 511 may be directly installed on the base 151 .

The rotation shaft installation part 513 is disposed in the center of the base 151 . The rotation shaft installation part 513 may be manufactured integrally with the base 151 .

The rotation motor 510 is disposed on the side of the rotation shaft installation part 513 . The motor shaft 515 of the rotary motor 510 is disposed in a horizontal direction.

The power transmission member 540 transmits the driving force of the rotation motor 510 to the rotation assembly 2 . In this embodiment, the power transmission member 540 includes a drive gear 541 assembled to the motor shaft 515 and a rack gear disposed on the base outer 152 and meshed with the drive gear 541 ( 542).

When viewed from a top view, the rack gear 542 may be formed in a ring shape or an arc shape.

The rack gear 542 may be disposed on the inner surface of the base inner 156 . The rack gear 542 may be manufactured integrally with the base inner 156 .

The rack gear 542 may be disposed above or below the driving gear 541 . The driving gear 541 and the rack gear 542 maintain a meshing state.

In order to firmly maintain a meshing state between the driving gear 541 and the rack gear 542 , the driving gear 541 is disposed below the rack gear 542 . A portion of the load of the rotary assembly 2 may be transmitted to the rack gear 542 , and a firm engagement may be formed through the load. In this embodiment, the teeth of the rack gear 542 are disposed downward.

In this embodiment, the teeth of the driving gear 541 and the rack gear 542 are meshed in the form of spur gears. Unlike the present embodiment, the teeth of the driving gear 541 and the rack gear 542 may be meshed in the form of a helical gear.

Referring to FIG. 17 , when the rotation motor 510 is operated, the rotation assembly 2 may be rotated above the base 151 . The first air discharging direction S1 of the blowing space 105 may be rotated through the rotation of the rotating assembly 2 .

Meanwhile, referring to FIGS. 12 to 17 , the air clean fan 1 further includes a light emitting assembly 550 , and the light emitting assembly 600 guides the rotation range of the rotating assembly 2 through a light source.

The light emitting assembly 600 includes a light emitting member 610 that emits light by receiving applied power, a printed circuit board 620 on which the light emitting member 610 is installed, and the light emitting member 610 . and a light-transmitting member 630 for guiding light out of the case 100 .

The printed circuit board 620 is disposed on the upper side of the base 151 , and the light emitting member 610 is disposed on the lower side of the printed circuit board 620 , and emits light toward the light transmitting member 630 . .

In this embodiment, the printed circuit board 620 may be formed in an arc shape or a ring shape. The printed circuit board 620 is installed on the base 151 , and the printed circuit board 620 is disposed below the driving gear 541 .

A plurality of support ribs 621 for supporting the printed circuit board 620 are disposed on the base 151 .

The light transmitting member 630 is disposed below the base outer 152 and the base inner 156 . The light transmitting member 630 is disposed above the base 151 .

The outer surface 631 of the light transmitting member 630 is exposed to the outside of the case 100 . The outer surface 631 of the light transmitting member 630 provides a surface continuous with the outer surface of the base 151 .

When viewed from a top view, the light transmitting member 630 may be formed in a ring shape or an arc shape. Light is incident through the upper surface 632 of the light transmitting member 630 , and the light emitting member 610 is disposed above the upper surface 632 .

The light incident through the upper surface 632 is refracted inside the light transmitting member 630 and guided to the outer surface 631 .

A vertical cross-section of the light transmitting member 630 may be formed in an “L” shape.

A plurality of the light emitting members 610 are disposed. The plurality of light emitting members 610 may be arranged in a circumferential direction along the printed circuit board 620 .

When the rotating assembly 2 is rotated, power is applied to the light emitting members 610 corresponding to the rotation range of the rotating assembly 2 , and the corresponding light emitting members 610 may be turned on simultaneously or sequentially. In this embodiment, the light emitting member 610 is LED is used.

18 is an exemplary view showing the horizontal air flow of the air clean fan according to the first embodiment of the present invention.

Referring to FIG. 18 , when a horizontal airflow is provided, the first guide board 411 is hidden inside the first tower 110 , and the second guide board 412 is hidden inside the second ellipse 120 . .

The discharge air of the first discharge port 117 and the discharge air of the second discharge port 127 may be merged in the blowing space 120 and may flow forward through the front ends 112 and 122 .

And, after the air behind the blowing space 105 is guided into the blowing space 105, it may flow forward.

In addition, air around the first tower 110 may flow forward along the first outer wall 114 , and air around the second tower 120 may flow forward along the second outer wall 124 . can be moved to

Since the first outlet 117 and the second outlet 127 extend long in the vertical direction and are symmetrically disposed, air flowing above the first outlet 117 and the second outlet 127 and the air flowing from the lower side can be formed more uniformly.

In addition, the air discharged from the first discharge port and the second discharge port are merged in the blowing space, thereby improving the straightness of the discharged air and allowing the air to flow farther away.

19 is an exemplary view showing an upward airflow of the air clean fan according to the first embodiment of the present invention.

Referring to FIG. 19 , when an upward airflow is provided, the first guide board 411 and the second guide board 412 protrude into the blowing space 105 and block the front of the blowing space 105 .

As the front of the blowing space 105 is blocked by the first guide board 411 and the second guide board 412, the air discharged from the discharge ports 117 and 127 is the first guide board 411 and It rises along the rear surface of the second guide board 412 and is discharged to the upper portion of the blowing space 105 .

By forming an upward airflow in the airflynn fan 1, it is possible to suppress the direct flow of the discharge air to the user. In addition, when it is desired to circulate indoor air, the air clean fan 1 may be operated with an upward airflow.

For example, when an air conditioner and an air clean fan are used at the same time, the air clean fan 1 can be operated with an upward airflow to promote convection of indoor air, and it is possible to more rapidly cool or heat the indoor air.

Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. should be interpreted

100: case 110: first tower
120: second tower 130: tower base
140: tower case 150: base case
200: filter 300: fan device
400: air flow converter

Claims (20)

Base;
a case disposed on the upper side of the base and having an inlet and an outlet formed therein;
a rotation motor disposed on the upper side of the base and having a motor shaft receiving a driving force;
a driving gear coupled to the motor shaft; and
and a rack gear disposed in the case and disposed above the driving gear to vertically mesh with the driving gear. The method according to claim 1,
The case is
a base case disposed on the upper side of the base and having a suction port; and
An air clean fan disposed on the upper side of the base case and including a tower case having a discharge port. The method according to claim 1,
The motor shaft of the rotary motor is an air clean fan extending in a horizontal direction. 3. The method according to claim 2,
The air clean fan further comprising; a rotation shaft disposed on at least one of the base or the base case and rotatably assembled with the other one, wherein the base case is rotated about the rotation shaft. 5. The method according to claim 4,
The rotating shaft is arranged in a vertical direction, and the base case is rotated in a horizontal direction for an air clean fan. 5. The method according to claim 4,
The rotating shaft is an air clean fan disposed in the center of the base case. 5. The method according to claim 4,
The base case is
a base outer disposed above the base; and
and a base inner disposed inside the base outer and having a space therein;
The rotating motor is disposed inside the base inner, and the rotating shaft is rotatably assembled to the base inner. The method according to claim 1,
When viewed from a top view, the rack gear is an air clean fan formed in an arc shape or a ring shape. The method according to claim 1,
An air clean fan with the teeth of the rack gear facing downward. The method according to claim 1,
The drive gear and the rack gear are meshed in the form of spur gears in an air clean fan. The method according to claim 1,
The air clean fan is meshed with the driving gear and the rack gear in the form of a helical gear. 8. The method of claim 7,
The rotation motor is an air clean fan disposed below the base inner. 8. The method of claim 7,
The rack gear is an air clean fan formed along an inner circumferential surface of the base inner. 8. The method of claim 7,
The air clean fan further comprising; a filter disposed inside the base outer and positioned above the base inner. 3. The method according to claim 2,
The tower case is an air clean fan that rotates together with the base case. 3. The method according to claim 2,
The tower case is
a first tower extending upward from the base case and having a first outlet;
and a second tower extending upward from the base case, spaced apart from the first tower, and formed with a second outlet,
Between the first tower and the second tower, a blowing space having an open portion in the horizontal direction and air discharged through the first outlet and the second outlet is discharged through the open portion is formed,
The rotation motor is an air clean fan for rotating the rack gear so that the opening direction of the blowing space is changed. 17. The method of claim 16,
It further includes; a rotation shaft disposed on at least one of the base or the base case and rotatably assembled with the other one,
The rotating shaft is an air clean fan disposed below the blowing space. 3. The method according to claim 2,
a light emitting member receiving applied power to emit light; a printed circuit board on which the light emitting member is installed; The air clean fan further comprising a; a light transmitting member for guiding the light generated by the light emitting member toward the outside of the base case. 19. The method of claim 18,
The light transmitting member is an air clean fan disposed between the base case and the base. 19. The method of claim 18,
The light transmitting member is an air clean fan having a ring shape or an arc shape.

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