KR20220040427A - Fan apparatus for Air conditioner - Google Patents

Abstract

The present invention is to provide a fan device for an air conditioner that controls the temperature of air discharged through a discharge port to a temperature desired by a user. According to the present invention, the fan device for an air conditioner comprises: a base case having a suction port through which air is sucked and accommodating a filter therein; a tower case disposed on the upper side of the base case and having a discharge port through which the air sucked in the suction port is discharged; and a heater disposed inside the tower case to heat the air. The heater includes: a heat dissipation tube including a first heat dissipation tube and a second heat dissipation tube disposed in parallel with each other and a third heat dissipation tube connecting one end of the first heat dissipation tube and one end of the second heat dissipation tube; and a plurality of heat dissipation fins coupled to the first heat dissipation tube and the second heat dissipation tube. The first heat dissipation tube extends in a first direction, and the heat dissipation fin forms a heat dissipation surface crossing the first direction.

Description

Fan apparatus for air conditioner

The present invention relates to a fan device for an air conditioner including a heater for heating air discharged 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.

Japanese Patent Application Laid-Open No. 2019107643 discloses a fan that provides wind to a user using the Coanda effect.

In the case of a conventional fan, a technique for controlling the path of the air discharged through the Coanda effect or changing the shape of the air discharged is not disclosed. Therefore, in the case of the conventional fan, there is a problem in that the flow rate of the discharged air is very weak or the direction of the discharged air cannot be changed, and the discharged air is difficult to reach a user in a distant place.

In addition, Korean Patent Laid-Open Publication No. 20030053400 discloses a plate-shaped heat sink structure that transfers heat by mechanical contact between a straight sheath heater and a rectangular heat sink fin by close contact & welding. As the prior art has a plate-like structure, it occupies a lot of space disposed inside the case, and there is a limit to shape transformation.

In addition, the linear sheath heater of the prior art can exchange heat in only one direction, and as a welding method is used only on a local surface, there is a reliability (lifetime) problem due to external impact, heat or oxidation.

Japanese Patent Application Laid-Open No. 2019107643 Korean Patent Publication No. 20030053400

SUMMARY OF THE INVENTION An object of the present invention is to provide a fan device for a conditioner that controls the temperature of air discharged through a discharge port to a temperature desired by a user.

Another object of the present invention is to provide a fan device for an air conditioner capable of guiding flowing air in a direction of a discharge port while taking up little space by a heater for heating discharged air.

Another object of the present invention is to provide a fan device for an air conditioner in which a heater for heating air is strong against heat, impact and oxidation.

Another object of the present invention is to provide a fan device for an air conditioner that discharges air discharged through a discharge port in various directions and in various shapes.

In addition, the problem to be solved by the present invention is a fan for an air conditioner that allows the cover and the main body to be firmly coupled without any play, and to easily separate the main body and the cover by applying an external force to the cover separation unit when the cover and the main body are separated. to provide the device.

The present invention is characterized by a heater having excellent heat exchange efficiency with air while guiding the air.

Specifically, the present invention provides a base case in which an air intake is formed and a filter is accommodated therein; a tower case disposed on the upper side of the base case and having a discharge port through which the air sucked from the suction port is discharged; and a heater disposed inside the tower case to heat the air, wherein the heater includes a first heat dissipation tube and a second heat dissipation tube disposed in parallel with one another, one end of the first heat dissipation tube, and the second heat dissipation tube a heat dissipation tube including a third heat dissipation tube connecting one end of the tube; and a plurality of heat dissipation fins coupled to the first heat dissipation tube and the second heat dissipation tube, wherein the first heat dissipation tube extends in a first direction, and the heat dissipation fin forms a heat dissipation surface crossing the first direction characterized by

The third heat dissipation tube may have a curvature.

The heat dissipation fin may include a first tube hole into which the first heat dissipation tube is inserted, and a second tube hole into which the second heat dissipation tube is inserted.

The heat dissipation surface of the heat dissipation fin may be the widest surface of the heat dissipation fin.

The heat dissipation surface of the heat dissipation fin may define a surface perpendicular to the first direction.

Each of the heat dissipation fins may be arranged to be spaced apart from each other in the first direction.

A pitch of the plurality of heat dissipation fins may be smaller than a separation distance between the first heat dissipation tube and the second heat dissipation tube.

The outlet may extend in the first direction, and the heat dissipation fin may change the direction of the sucked air and guide it to the outlet.

The heat dissipation fin and the heat dissipation tube may include different materials.

The singi heater may further include a top heat dissipation member coupled to the third heat dissipation tube.

The top heat dissipation member may include a connector into which at least a portion of the third heat dissipation tube is inserted, and a plurality of top heat dissipation fins connected to the connector and having a larger surface area than the connector.

It may further include a protective cover preventing external contact with the heater and allowing air to flow through the heater.

The protective cover may be spaced apart from the heat dissipation fins to surround at least the heat dissipation fins, and may include a cover inlet through which air is introduced, and a cover outlet through which internal air is discharged.

A line connecting the center of the cover inlet and the center of the cover outlet may extend in a direction crossing the first direction.

The protective cover may include a first protective cover made of a heat-resistant material, and a second protective cover disposed between the first protective cover and the heater and made of an insulating material.

The heater may further include a fastening plate to which the protective cover is coupled, and the fastening plate may be coupled to the first heat dissipation tube and the second heat dissipation tube.

The fastening plate may be coupled to the tower case.

One end of the heat dissipation fin may be disposed closer to the outlet than the other end of the heat dissipation fin, and the one end of the heat dissipation fin may be positioned higher than the other end of the heat dissipation fin.

In addition, the present invention is formed with a suction port for air intake, the base case for accommodating the filter therein; a tower case disposed on the upper side of the base case, the first tower having an air flow path therein, and the second tower being spaced apart from each other; a blowing space formed between the first tower and the second tower; a first outlet formed in the first tower and discharging the sucked air to the blowing space; a second outlet formed in the second tower and discharging the sucked air to the blowing space; Doedoe disposed inside the tower case, including a heater disposed adjacent to at least one of the first outlet and the second outlet, wherein the heater includes a first heat dissipation tube and a second heat dissipation tube disposed in parallel with each other; a heat dissipation tube including a third heat dissipation tube connecting one end of the first heat dissipation tube and one end of the second heat dissipation tube; and a plurality of heat dissipation fins coupled to the first heat dissipation tube and the second heat dissipation tube, wherein the first heat dissipation tube extends in a first direction, and the plurality of heat dissipation fins intersect the first direction. can be formed

In addition, the present invention is formed with a suction port for air intake, the base case for accommodating the filter therein; a tower case disposed on the upper side of the base case, the first tower having an air flow path therein, and the second tower being spaced apart from each other; a blowing space formed between the first tower and the second tower; a first outlet formed in the first tower and discharging the sucked air to the blowing space; a second outlet formed in the second tower and discharging the sucked air to the blowing space; Doedoe disposed inside the tower case, including a heater disposed adjacent to at least one of the first outlet and the second outlet, wherein the heater includes a first heat dissipation tube and a second heat dissipation tube disposed in parallel with each other; a heat dissipation tube including a third heat dissipation tube connecting one end of the first heat dissipation tube and one end of the second heat dissipation tube; and a plurality of heat dissipation fins coupled to the first heat dissipation tube and the second heat dissipation tube, wherein the first outlet and the second outlet extend in a first direction, and the heat dissipation fin is a reference plane perpendicular to the first direction. and may have an inclination of less than 45 degrees.

The fan device for an air conditioner according to the present invention has one or more of the following effects.

The present invention uses a heater to control the temperature of the air discharged through the discharge port to a temperature desired by the user, and to guide the air flowing through the case through the heat dissipation fin to the discharge port. There is an advantage that a separate guide can be omitted.

In addition, in the present invention, since a plurality of heat dissipation fins are connected to two heat dissipation tubes, the heat dissipation fins are firmly fixed, and there is an advantage of strong resistance to external impact, heat and oxidation.

In addition, in the present invention, since a plurality of heat dissipation fins are arranged in the longitudinal direction of the heat dissipation tube, the space occupied by the heater is small, and there is an advantage of excellent heat transfer between the heat dissipation tube and the heat dissipation fin.

In addition, the present invention allows the cover and the body to be firmly coupled without any play, so that the user's aesthetic feeling can be improved when the cover and the body are coupled, and when the cover and the body are separated, an external force is applied to the cover separation unit to the body And there is an advantage that the cover can be easily separated.

In addition, the present invention induces the Coanda effect on the air discharged from the first tower and the air discharged from the second tower, respectively, and then merges and discharges in the blowing space, thereby increasing the straightness and reach of the discharged air There are advantages to doing it.

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 a fan device for an air conditioner according to an embodiment of the present invention;
Figure 2 is an example of the operation of Figure 1;
3 is a front view of FIG. 2;
Fig. 4 is a plan view of Fig. 3;
Figure 5 is a right sectional view of Figure 2;
Figure 6a is a front sectional view of Figure 2;
Figure 6b is a view showing the heater shown in Figure 6a, the outlet;
Figure 6c is a plan view of the heat dissipation fin of the heater shown in Figure 6b;
Figure 6d is a perspective view showing a state in which the protective cover is coupled to the heater of the present invention;
Fig. 6e is an exploded perspective view of Fig. 6d;
6f is a perspective view of a heater according to another embodiment of the present invention;
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 perspective view of the fan device for the air conditioner of FIG. 1 viewed from another direction;
10 is a perspective view showing a state in which the filter is separated from the case of FIG. 9;
11 is a cross-sectional perspective view taken along line A-A' of FIG. 9;
12 is a view showing an operation state of FIG. 11;
13 is a view showing the operation of FIG. 9 in a state in which the cover and the case are coupled;
14 is a plan cross-sectional view taken along line IX-IX of FIG. 3;
15 is a bottom cross-sectional view taken along line IX-IX of FIG. 3;
16 is a perspective view showing a first state of the airflow converter;
17 is a perspective view showing a second state of the airflow converter;
18 is an exploded perspective view of the airflow converter;
19 is a front view showing a state in which the space board is removed from the airflow converter;
20 is a front view showing a state in which the space board is installed in FIG. 19;
21 is a side cross-sectional view of the airflow converter;
22 is a view showing the rear side of the space board of the airflow converter;
23 is a cross-sectional view showing an airflow converter in a state in which the second protrusion is inserted into the second slit;
24 is a plan sectional view briefly showing the flow direction of air according to the position of the space board;
24 is a front cross-sectional view of FIG. 2 according to another embodiment of the present invention;
25 is a partially exploded perspective view showing the inside of the second tower of FIG. 24;
Figure 26 is a right side view of Figure 25;
27 is an exemplary view showing the horizontal air flow of the fan device for an air conditioner according to the present invention;
28 is an exemplary view showing an upward airflow of the fan device for an air conditioner according to the present invention;
29 is a perspective view showing a fan of the present invention;
30 is an enlarged view of the leading edge portion of FIG. 29;
31 is a cross-sectional view taken along line C1-C1' of FIG. 30;
Fig. 32 is a view showing the flow of air passing through the notch portion of the leading edge in Fig. 29;
33 is experimental data comparing the sharpness according to the air volume of the Example of Comparative Example;
34 is experimental data comparing noise according to air volume in Examples of Comparative Examples.

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 a fan device for an air conditioner according to an 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 fan device 1 for an air conditioner 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.

And 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.

In this specification, the vertical direction is defined as a direction parallel to the direction of the rotation axis of the fan 320 . The upper direction (vertical direction) refers to a direction in which the tower case 140 is positioned in the case 100 , and the lower direction refers to a direction in which the base case 150 is positioned in the case 100 .

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 is opened at the front, rear and upper side, 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 the 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.

Horizontal airflow should be understood to mean that the flow of air flowing in the horizontal direction is higher than that it does not mean that the air only flows in the horizontal direction. 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 this 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 where the discharge air is mixed and mixed. In addition, by the discharge air discharged to the blowing space 105, the air behind the blowing space can also flow into the blowing space.

Since the discharge air of the first discharge port 117 and the discharge air of the second discharge port 127 are merged in the blowing space, it is possible to improve the straightness of the discharge air. In addition, by merging 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 fan device 1 for the air conditioner.

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 113 of the first tower 110 And the rear end 123 of the second tower 120 is 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 the 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 and the second tower 120 of the first tower 110 The inner walls 125 of the 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 the first inner wall 115 , and the inner surface of the second tower is referred to as the 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 outer wall 114 is formed on the outer side of the first inner wall 115 . The first outer wall 114 and the first inner wall 115 form a space in which air flows. The second outer wall 124 is formed on the outer side of the second inner wall 125 . The first outer wall 124 and the first inner wall 125 form a space in which air flows.

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

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.

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 separation 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 tower of the first tower 110 The separation distance of the rear end 123 of (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 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 B0.

The closer the discharge ports 117 and 127 are disposed 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 tower The outer wall 124 of 120 indirectly provides a 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 outlets 117 and 127 directly provides a horizontal airflow.

Due to the air flow in the blowing space 105 , an indirect air flow is also generated in the outer walls 114 and 124 . The outer walls 114 and 124 induce a Coanda effect on the indirect airflow and guide the indirect airflow 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 discharge air of the first outlet and the air of the second outlet are blown You can induce them to join in space.

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

The tower case 140 includes a first tower 110 and a second tower 120 . In this embodiment, the 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 the present embodiment, the first tower 110 and the second tower 120 may be directly assembled to the base case 150 without the tower base 130 , or may be manufactured integrally with the base case 150 .

The base case 150 forms the lower part of the fan device 1 for the air conditioner, and the tower case 140 forms the upper part of the fan device 1 for the air conditioner.

The fan device 1 for an air conditioner may suck in ambient air from the base case 150 and discharge the filtered air from the tower case 140 . The tower case 140 may discharge air from a position higher than the base case 150 .

The fan device 1 for an air conditioner is in the shape of a column whose diameter becomes smaller toward the upper part. The fan device 1 for an air conditioner may have a conical or truncated cone shape as a whole.

Unlike the present embodiment, the fan device 1 for an air conditioner may include both towers in which two towers are disposed. 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 continuously formed. 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, discharge ports 117 and 127 are disposed on the upper side of the tower base 130 , and an ascending air flow and a 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 surface 131 is connected to the first inner wall 115 , and the other side 131b of the upper 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 the present 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 fan device 1 for an air conditioner includes a filter 200 disposed inside the case 100 , and an air outlet 117 disposed inside the case 100 . It includes a fan device (300) to flow 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 the shape of a truncated cone, and the upper side is opened in this embodiment.

The base case 150 includes a base 151 seated on the ground, a base outer 152 coupled to an upper side of the base 151 , a space is formed therein, and a suction port 155 formed therein.

When viewed from the 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. The 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 port 154 and/or the suction port. The cover 153 may be detachably assembled from the base outer 152 . In this embodiment, the cover 153 and the filter insertion hole 154 are shielded together.

The user can take the filter 200 out of the case 100 by removing the cover 153 . The present invention may further include a cover separation unit for separating the cover (153). The cover separation unit will be described in detail with reference to FIGS. 9 to 13 .

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 form 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. The 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 a 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 at the lower side.

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 on the upper side of the blade, and the shroud is disposed on the lower side of 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 be minimized by discharging air upward in the radial direction.

Meanwhile, the 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 . Also, the 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 inside. are placed Unlike the present embodiment, the motor housing 330 may be disposed inside the tower base 130 or the base case 150 .

Meanwhile, the suction grill 350 may be disposed inside the base case 150 . When the filter 200 is separated, the suction grill 350 blocks the user's finger from entering the fan 320 side, thereby protecting the user and the fan 320 .

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 , the space below the suction grill 350 is defined as the 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 the 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 are defined as the discharge space 103 .

The indoor air is introduced into the filter installation space 101 through the inlet 155 and is then discharged to the outlets 117 and 127 through the blowing space 102 and the outlet space 103 .

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 includes a first border 117a that forms an edge on the air discharge side (front end in this embodiment), and a second border 117b that forms an edge on the air discharge side (rear end in this embodiment) and , 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 air discharge side (front end in this embodiment) edge, and a second border 127b forming an air discharge side (rear end in this embodiment) edge, and , 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 with respect to the vertical direction (V), and the rear end 113 of the first tower 110 is also inclined with respect to 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.

Hereinafter, the heater 500 installed in the fan device for an air conditioner will be described.

Referring to FIGS. 3 and 6A , the heater 500 is a component that is disposed in the first discharge space 103a or the second discharge space 103b to heat flowing air. The heater 500 heats the flowing air to discharge the heated air to the outside of the fan device for the air conditioner.

The heater 500 may be disposed in the first tower 110 or the second tower 120 of the fan device for the air conditioner.

The heater 500 is elongated in the up-down direction. The heater 500 is disposed in the longitudinal direction of the first tower 110 or the second tower 120 . The heater 500 is disposed below the airflow converter 400 .

The heater 500 may be disposed in the first tower 110 and the second tower 120 , respectively. The heater 500 disposed in the first tower 110 may be referred to as a first heater 501 , and the heater 500 disposed in the second tower 120 may be referred to as a second heater 502 . The first tower 110 and the second tower 120 may be formed symmetrically with respect to a central axis, and the first tower 110 and the second tower 120 may be symmetrically disposed with respect to the central axis.

The upper end of the heater 500 may be disposed below the upper end of the space board 410 . The lower end of the heater 500 may be disposed above the lower end of the space board 410 .

Referring to FIG. 4 , when viewed from the top, the upper end of the heater 500 may be disposed at the center in the front-rear direction of the first tower 110 or the second tower 120 . Referring to FIG. 5 , the upper end of the heater 500 is disposed in front of the lower end of the heater 500 . In other words, the heater 500 is inclined so that the lower end is disposed behind the upper end.

As will be described later, when the heater 500 is inclined so that the lower end is disposed behind the upper end, the heat dissipation fins extend in a direction (horizontal direction) intersecting the extension direction of the outlet, thereby preventing a decrease in the flow rate of air passing through the heater. The air moving from the lower part to the upper part is converted to the horizontal direction by the direction of the heat dissipation fin and supplied to the outlet, thereby reducing the air pressure loss.

More specifically, the heater 500 is disposed inclined with respect to the vertical direction. The heater 500 is disposed parallel to the first outlet 117 or the second outlet 127 . Here, the inclination direction of the heater means the inclination direction of the first heat dissipation tube or the second heat dissipation tube to be described later, and the extension direction of the heater means the extension direction of the first heat dissipation tube or the second heat dissipation tube to be described later,

The heater 500 may be inclined to have an inclination (angle) of a3 with respect to the vertical direction. The first heat dissipation tube or the first heat dissipation tube may be inclined to have an inclination (angle) of a3 with respect to the vertical direction.

For example, the heater 500 may be inclined within a certain error range based on an angle of 4 degrees with respect to the vertical direction. The second outlet may be inclined so as to have an inclination of a1 with respect to the vertical direction. For example, the second outlet may be inclined within a certain error range based on an angle of 4 degrees with respect to the vertical direction. Although not shown in FIG. 5 , it is obvious that the first outlet 117 may also be inclined so as to have an inclination of as much as a1 with respect to the vertical direction.

The slope a3 of the heater 500 may correspond to the following value. The vertical axis (V) with respect to the ground and the inclination of the heat sink fin. The vertical axis (V) with respect to the ground and the inclination of the heat dissipation tube (520) trapped. The inclination of the heat dissipation fin 530 and the ground. The inclination of the lower horizontal plate 513 and the ground.

The heater 500 is disposed parallel to the first outlet 117 or the second outlet in the vertical direction. In other words, the inclination a3 of the heater 500 in the vertical direction and the inclination a1 of the first outlet 117/second outlet in the vertical direction may be the same. The heater 500 is disposed parallel to the first outlet 117 or the second outlet, so that an equal amount of air guided by the heat dissipation fin 530 may flow to the first outlet 117 or the second outlet. .

The heater 500 is disposed inside the tower case 140 , and is disposed upstream of the first outlet 117 or the second outlet. Upstream means that it is arranged in the air inflow direction based on the air flow direction. That is, the heater 500 is disposed in the air inflow direction of the first outlet 117 or the second outlet. More specifically, the heater 500 is disposed in front of the first outlet 117 or the second outlet.

Referring to FIG. 6B , the heater 500 includes a heat dissipation tube 520 that generates heat, and heat dissipation fins 530 (Fin) that transfer heat from the heat dissipation tube 520 . In addition, the heater may further include a fastening plate.

The heat dissipation tube 520 is a component that receives energy and converts it into thermal energy to generate heat. The heat dissipation tube 520 may be connected to an electric device to receive electric energy, and may be configured as a resistor to convert electric energy into thermal energy.

Alternatively, the heat dissipation tube 520 may be formed as a pipe through which a refrigerant flows, and heat the air by exchanging heat between the refrigerant flowing inside and the air flowing outside. In addition, the heat dissipation tube 520 includes a heating element within a range that can be easily changed based on a person skilled in the art.

The heat dissipation tube 520 may be formed in a U-shape. Specifically, the heat dissipation tube includes a first heat dissipation tube and a second heat dissipation tube disposed in parallel with each other, and a third heat dissipation tube connecting one end of the first heat dissipation tube and one end of the second heat dissipation tube.

The length of the first heat dissipation tube and the second heat dissipation tube may be longer than the length of the third heat dissipation tube. The third heat dissipation tube may have a straight shape or a curvature. The third heat dissipation tube may have a curvature, and the first to third heat dissipation tubes may be integrally formed and bent to complete the U-shape of the heat dissipation tube.

The first heat dissipation tube or the second heat dissipation tube may extend in a first direction. The first heat dissipation tube or the second heat dissipation tube extends long in the longitudinal direction of the first discharge port 117 or the second discharge port. That is, the first heat dissipation tube, the second heat dissipation tube, the first discharge port 117 and the second discharge port may extend in the first direction. Here, the first direction is a vertical direction or a direction having an inclination within 4 degrees from the vertical direction.

When the first heat dissipation tube and the second heat dissipation tube extend in the longitudinal direction of the discharge port, the temperature of the air discharged from the discharge port becomes constant regardless of the upper and lower portions. When a U-shaped heat dissipation tube is used, since two heat dissipation tubes are coupled to the heat dissipation fin, the amount of heat transferred to the heat dissipation fin increases, and the bonding force between the heat dissipation fin and the heat dissipation tube increases.

The fastening plate provides a space to which a protective cover to be described later is coupled. A coupling hole (not shown) to which the coupling member passing through the protective cover is coupled may be formed in the coupling plate. In addition, the fastening plate fixes the heater to the case.

Specifically, the fastening plate is coupled to the first heat dissipation tube and the second heat dissipation tube. The fastening plate has a plate shape and extends in a direction crossing the extending directions of the first heat dissipation tube and the second heat dissipation tube. The fastening plate is located below the heat dissipation fins. The fastening plate is coupled to the tower case.

Referring to FIGS. 6B and 6C , the heat dissipation fins 530 (Fin) are connected to the heat dissipation tube 520 and are a component that transmits heat from the heat dissipation tube 520 . Since the heat dissipation fin 530 has a large surface area, the heat transmitted to the heat dissipation tube 520 can be effectively transferred to the flowing air.

The heat dissipation fins 530 change the air flow direction to guide the air to the first outlet 117 or the second outlet. The suction port is disposed below, and the first discharge port 117 and the second discharge port are disposed above. Inside the first tower 110 and the second tower 120, air forms a flow that rises from the bottom to the top. The heat dissipation fin 530 converts a flow rising from the bottom to the top into a flow moving from the front to the rear.

A plurality of heat dissipation fins are arranged to be spaced apart from each other in the first direction. The heat dissipation fin is coupled to the first heat dissipation tube and the second heat dissipation tube except for the third heat dissipation tube and the lower end of the first heat dissipation tube and the lower end of the second heat dissipation tube. The pitch of the plurality of heat dissipation fins is not limited.

A pitch of the plurality of heat dissipation fins is preferably smaller than a separation distance between the first heat dissipation tube and the second heat dissipation tube. This is because, when the pitch of the heat sink fins is too large, heat exchange efficiency with air is reduced, and when the pitch of the heat sink fins is too small, the pressure loss increases while passing through the heat sink fins.

The heat dissipation fin may include heat dissipation surfaces disposed to face each other and a fin side surface that connects the edges of the two heat dissipation surfaces and has a smaller area than the heat dissipation surfaces. The heat dissipation surface has the largest area in the heat dissipation fin. The heat dissipation surface is the surface which becomes the main heat dissipation in the heat dissipation fin.

The heat dissipation fin includes a first tube hole into which the first heat dissipation tube is inserted, and a second tube hole into which the second heat dissipation tube is inserted. The first tube hole and the second tube hole are formed through the heat dissipation surfaces. The heat dissipation fin may be coupled to the first heat dissipation tube and the second heat dissipation tube inserted into the first tube hole and the second tube hole by an adhesive.

The length W22 of the heat dissipation fin may be greater than a distance between the first heat dissipation tube and the second heat dissipation tube. The first tube hole and the second tube hole are spaced apart from each other in the longitudinal direction of the heat dissipation fin. The separation distance between the first tube hole and the second tube hole may be smaller than the length W22 of the heat dissipation fin. The separation distance between the first tube hole and the second tube hole may be 30% to 50% of the length W22 of the heat dissipation fin. The width W21 of the heat dissipation fin may be 30% to 50% of the length W22 of the heat dissipation fin.

The longitudinal direction of the heat dissipation fins is preferably arranged in the front-rear direction. When the heat dissipation fins are disposed in the front-rear direction, the air moving from the lower part to the upper part exchanges heat with the heat radiation fins while moving from the front to the rear, thereby increasing the heat exchange area and time.

The heat dissipation surface may define a surface intersecting the first direction in which the first heat dissipation tube extends. Preferably, the heat dissipation surface defines a surface perpendicular to the first direction. As another example, the heat dissipation fin may have an inclination of less than 45 degrees from a reference plane perpendicular to the first direction.

Specifically, when the first heat dissipation tube 520 forms an angle of about 4 degrees between the vertical axis V and the heat dissipation surface of the heat dissipation fin 530 forms an angle of about 4 degrees with the ground. can

Accordingly, while the sucked air rises inside the tower case and comes into contact with each heat dissipation fin, it exchanges heat with the heat dissipation fin, is converted to a horizontal direction along the heat dissipation surface, and is supplied to the outlet.

More specifically, one end of the heat dissipation fin may be disposed closer to the outlet than the other end of the heat dissipation fin, and the one end of the heat dissipation fin may be positioned higher than the other end of the heat dissipation fin. Accordingly, since the air sucked from the lower part to the upper part is switched smoothly when the direction is changed in the horizontal direction, the pressure loss applied to the air is reduced.

The first outlet 117 is elongated in the longitudinal direction (first direction) of the first tower 110, the second outlet is elongated in the longitudinal direction (first direction) of the second tower 120, the heat dissipation fin A plurality of 530 is disposed along the longitudinal direction of the first outlet 117 or the second outlet, so that air can be uniformly discharged to each outlet in the longitudinal direction.

The heat dissipation fin may have an inclination smaller than 45 degrees from a reference plane perpendicular to the first direction.

For the heat dissipation fin, a metal material with excellent heat transfer may be selected. For example, the material of the heat dissipation fin may be different from that of the heat dissipation tube.

The present invention may further include a protective cover for protecting the heater.

6D and 6E , the protective cover prevents the heater from coming into contact with the outside, thereby preventing the heater from being damaged. The protective cover fixes the heater to the case, and restricts heat emitted from the heater from being transferred to the case. In addition, the protective cover allows the air flowing inside the case to flow to the heater.

The protective cover may be spaced apart from the heat dissipation fins to surround at least the heat dissipation fins. In addition, the protective cover may include a cover inlet through which air is introduced and a cover outlet through which internal air is discharged, and the cover inlet and the cover outlet may be positioned to face each other.

A line connecting the center of the cover inlet and the center of the cover outlet may extend in a direction crossing the first direction. Specifically, a line connecting the center of the cover inlet and the center of the cover outlet may be parallel to the front-rear direction or may be parallel to the longitudinal direction of the heat dissipation fin.

For example, the protective cover includes a first side cover plate and a second side cover plate disposed to face each other, and a third side cover plate connecting one end of the first side cover plate and one end of the second side cover plate can do.

At least a heat dissipation fin is positioned between the first side cover plate and the second side cover plate. Preferably, a heat dissipation fin and a heat dissipation tube are positioned between the first side cover plate and the second side cover plate. A cover inlet and a cover outlet are defined between the first side cover plate and the second side cover plate.

The first side cover plate and the second side cover plate are disposed parallel to the longitudinal direction of the heat dissipation fin and extend in the vertical direction. The length of the first side cover plate and the second side cover plate is preferably longer than the length of the heater.

More specifically, in the protective cover, the first side cover plate and the second side cover plate extend up and down, and the upper end of the first side cover plate and the upper end of the second side cover plate are connected to the third cover cover plate.

The lower end of the first side cover plate and the lower end of the second side cover plate are coupled to the fastening plate of the heater. A fastening hole to which a fastening member for fastening the first side cover plate and the second side cover plate to the tower case is coupled is formed at the upper end or lower end of the first side cover plate and the second side cover plate.

The left and right directions of the heat dissipation fin are covered by the first side cover plate and the second side cover plate, the upper direction of the heat dissipation fin is covered by the third side cover plate, and the lower direction of the heat dissipation fin is covered by the fastening plate, A cover inlet and a cover outlet are defined in the front-rear direction.

Accordingly, the protective cover protects the heat radiation fins and does not obstruct the air flowing through the heat radiation fins.

The protective cover is preferably made of a material having excellent heat resistance and insulation properties in order to prevent not only external physical impact, but also to prevent short circuit of the electric heater and to limit the transfer of heat from the heater to the case.

In addition, the protective cover may have a composite material or a multi-layer structure to provide such heat resistance and insulation. For example, the protective cover may include a first protective cover made of a heat-resistant material, and a second protective cover disposed between the first protective cover and the heater and made of an insulating material.

The first protective cover may include SUS, and the second protective cover may include mica or PPS/PPA.

The heater according to another embodiment of the present invention may further include a top heat dissipation member.

Referring to FIG. 6F , the top heat dissipation member is coupled to the third heat dissipation tube to radiate heat of the third heat dissipation tube and exchange heat with air. The top heat dissipation member may be detachably coupled to the third heat dissipation tube.

Since the third heat dissipation tube is bent, the heat dissipation fins inserted into the first heat dissipation tube and the second heat dissipation tube cannot be coupled. Accordingly, the top heat dissipation member transfers the heat of the third heat dissipation tube to the air.

The top heat dissipation member may include a connector into which at least a portion of the third heat dissipation tube is inserted, and a plurality of top heat dissipation fins connected to the connector and having a larger surface area than the connector.

The connector may be coupled to the third heat dissipation tube in an interference fit manner. Specifically, it is preferable that the cross section of the connector is 2/3. The top heat dissipation fins may extend in the front-rear direction.

Hereinafter, the cover separation unit 600 for separating the cover 153 from the base case 150 will be described in detail.

Referring to FIGS. 9 and 10 , the cover 153 of the present invention is coupled to the case 100 without space for an aesthetic feeling to the user. Specifically, the cover 153 is magnetically coupled to the case 100 , and a magnet (not shown) may be installed in the cover 153 and the case 100 . Hereinafter, a direction to be described means a direction in a state in which the cover 153 is coupled to the case 100 unless otherwise specified.

In addition, the cover 153 has a shape surrounding the entire outer surface (in detail, the outer peripheral surface) of the base case (150). Accordingly, the cover 153 has a cylindrical shape corresponding to the outer circumferential surface of the base case 150 . In addition, the cover 153 may be separated into two pieces for the convenience of separation and to reduce the play when combined.

Specifically, the cover 153 may include a front cover 153a that covers the front surface of the base case 150 and a rear cover 153b that covers the remaining surfaces except for the front surface of the base case 150 . A semi-cylindrical shape of the front cover (153a) and the rear cover (153b). Accordingly, the cover 153 shields both the filter insertion port 154 and the suction port 155 formed in the base case 150 , thereby providing an excellent aesthetic feeling to the user.

In addition, the outer surface of the cover 153 coincides with the surface or the line extending the outer surface of the tower case (140). Therefore, when the cover 153 is coupled to the base case 150, it has a sense of unity with the tower case 140, and there is no play. In this case, although the aesthetic feeling given to the user is improved, it is difficult for the user to separate the cover 153 from the base case 150 because there is no space for the user's hand to enter.

The present invention provides a cover separation unit 600 for a user to easily separate the cover 153 from the base case 150 .

The cover separation unit 600 is installed in the case 100 to separate the cover 153 from the base case 150 . For example, the cover separation unit 600 may include a lever 610 and an upper cover pusher 620 . For another example, the cover separation unit 600 may include a lever 610 and an upper cover pusher 620 , a slider 630 and a lower cover pusher 640 to simultaneously separate the upper and lower portions of the cover 153 . can

11 and 12 , the lever 610 is installed on the case 100 and slid along the outer surface of the case 100 . The lever 610 may be installed in the base case 150 or the tower case 140 . In this embodiment, the cover 153 shields the entire base case 150 , and the lever 610 is installed on the tower case 140 , and slides along the outer surface of the tower case 140 .

The lever 610 transmits an external force to the upper cover pusher 620 and/or the lower cover pusher 640 . At least a portion of the lever 610 is exposed on the outer surface of the case 100 . In this embodiment, at least a part of the lever 610 is exposed on the outer surface of the tower case 140 . The lever 610 may be disposed above the cover 153 .

The lever 610 is exposed on one surface of the tower case 140 to be moved up and down by an external force. Therefore, the user can operate the lever 610 without bending the waist excessively, and since the lever 610 moves along the outer surface of the case 100 , when the lever 610 moves, the It will not protrude outside. Accordingly, the possibility that the lever 610 is protruded to the outside of the case 100 during use of the lever 610 and the lever 610 is damaged is reduced.

The lever 610 may be accommodated in the lever receiving groove 1310 formed in the case 100 . The lever receiving groove 1310 may be formed in the tower case 140 or may be formed in the base case 150 .

In this embodiment, the lever receiving groove 1310 is formed by recessing the outer peripheral surface of the tower case 140 in the central direction. In addition, the lever receiving groove 1310 may communicate with a pusher receiving groove 1521 to be described later. That is, the lower portion of the lever receiving groove 1310 is opened to communicate with the pusher receiving groove 1521 . The lever receiving groove 1310 accommodates the lever 610 and provides a space in which the lever 610 moves.

A guide slit 1311 is formed in the lever receiving groove 1310 . The guide slit 1311 guides the lever 610 and prevents the lever 610 from being separated from the case 100 . A holder 611 may be further formed on the lever 610 .

One end of the holder 611 is connected to the lever 610 and the guide slit 1311 , and the other end of the holder 611 is located inside the tower case 140 , and has a width greater than the width of the guide slit 1311 . have Accordingly, even when the lever 610 is moved up and down, the lever 610 is prevented from being separated from the case 100 .

The cover separation unit 600 further includes a return spring 660 that provides a restoring force to the lever 610 . The return spring 660 provides an upward restoring force to the lever 610 . Specifically, one end of the return spring 660 is connected to the case 100 , and the other end is connected to the lever 610 . More specifically, one end of the return spring 660 is connected to the inner surface of the tower case 140 , and the other end is connected to the holder 611 .

The upper cover pusher 620 is rotatably coupled to the lever 610 , and is guided to the outer surface of the case 100 to push the cover 153 . Accordingly, when an external force is applied to the lever 610 , the cover 153 is separated from the case 100 by the upper cover pusher 620 .

The upper cover pusher 620 is rotatably coupled to the lever 610 is that the upper cover pusher 620 is hinged to the lever 610 to rotate, and the upper cover pusher 620 is connected to one end of the lever 610 to be bent and rotated. include that In addition, the fact that the upper cover pusher 620 is rotatably coupled to the lever 610 is that the upper cover pusher 620 is a flexible material, and as the whole is bent, one end of the upper cover pusher 620 moves in the outer direction. include In this embodiment, the cover 153 pusher is hinged to the lower end of the lever 610 .

The upper cover pusher 620 may be disposed in a coupling region of the base case 150 where the cover 153 is coupled to the base case 150 . Here, the coupling region means a position that horizontally overlaps the cover 153 in the base case 150 . The coupling region may be a part of the base case 150 or the entire base case 150 .

The upper cover pusher 620 is positioned between the cover 153 and the base case 150 . When the cover 153 is coupled to the base case 150 , the upper cover pusher 620 is not exposed to the outside by the cover 153 . The upper cover pusher 620 is located in the pusher receiving groove 1521 formed in the base case 150 to be described later.

Therefore, in a state in which the cover 153 is coupled to the base case 150 , the upper cover pusher 620 is covered by the cover 153 , thereby improving the aesthetic feeling given to the user. Also, since there is no need for a separate space in which the upper cover pusher 620 rotates, there is an advantage that a slim product can be implemented.

The upper rotation guide 1520 guides the upper cover pusher 620 to rotate in one direction when the upper cover pusher 620 moves along the outer surface of the base case 150 . In addition, the upper rotation guide 1520 accommodates the upper cover pusher (620).

The upper rotation guide 1520 may include an upper guide surface 1522 extending in a direction crossing the outer surface (outer peripheral surface) of the base case 150 and guiding the upper cover pusher 620 . The upper guide surface 1522 may extend in a direction crossing the vertical direction of the outer peripheral surface of the base case 150 . Specifically, the upper guide surface 1522 may have an inclination angle greater than 0 degrees with the outer surface of the base case 150 . The upper guide surface 1522 may be inclined downward from the inside to the outside of the base case 150 .

In this case, the lower surface of the upper cover pusher 620 may be inclined downward from the inside to the outside to correspond to the upper guide surface 1522 . The lower surface of the upper cover pusher 620 may have an inclination angle of a predetermined angle with respect to the vertical direction. Accordingly, when the upper cover pusher 620 moves downward due to the interference between the lower surface of the upper cover pusher 620 and the upper guide surface 1522 , the lower end of the upper cover pusher 620 protrudes to the outside.

At least a portion of the upper guide surface 1522 vertically overlaps with the upper end of the upper cover pusher 620 . At least a portion of the upper guide surface 1522 vertically overlaps with the upper end of the upper cover pusher 620 in a state in which the filter is coupled.

The upper rotation guide 1520 is formed in the base case 150 . Specifically, the base case 150 is disposed in an area that horizontally overlaps with the cover 153 . Accordingly, when the cover 153 is coupled to the base case 150 , the upper rotation guide 1520 is not exposed to the outside by the cover 153 .

More specifically, the base case 150 includes an inner base case 150a and an outer base case 150b disposed to surround at least a portion of the inner base case 150a, and the upper guide surface 1522 is the outer base case It is formed on the outer surface of (150b).

The upper rotation guide 1520 may further include an upper pusher receiving groove 1521 for accommodating the upper cover pusher 620 . The upper pusher receiving groove 1521 may receive a portion of the lever 610 when the lever 610 moves downward.

The upper pusher receiving groove 1521 accommodates the upper cover pusher 620 when the lever 610 does not operate, and guides the movement of the upper cover pusher 620 when the lever 610 moves downward. , to guide the movement of the lever 610 .

In this embodiment, the upper pusher receiving groove 1521 is formed by recessing the outer peripheral surface of the outer base case 150b in the inward direction. That is, the upper pusher receiving groove 1521 is opened outwardly in the outer base case 150b. In addition, in order to accommodate and guide the lever 610 when the upper pusher receiving groove 1521 lever 610 moves downward, the upper direction is opened and communicates with the lower part of the lever receiving groove 1310 . The upper pusher receiving groove 1521 and the lever receiving groove 1310 are vertically positioned to at least partially overlap.

An upper guide surface 1522 is formed on one surface of the upper pusher receiving groove 1521 . The upper guide surface 1522 is formed on the lower surface of the upper pusher receiving groove 1521 . Guided along the upper guide surface 1522, the upper cover pusher 620 is separated from the pusher receiving groove 1521 to the outside.

The slider 630 is spaced apart from the upper cover pusher 620 and slidably installed on the case 100 , and is connected to the lever 610 . The slider 630 is moved while being constrained by the lever 610 . The slider 630 is slidably installed on the base case 150 . The slider 630 transmits the external force transmitted from the lever 610 to the lower cover pusher 640 .

The slider 630 may be accommodated in the lower rotation guide 1530 formed in the case 100 . While the slider 630 moves within the lower rotation guide 1530 , its movement direction is guided by the lower rotation guide 1530 .

The slider 630 may be located lower than the upper cover pusher 620 . The slider 630 may be positioned between the base case 150 and the cover 153 . Accordingly, there is an advantage that the slider 630 is not visible from the outside in a state in which the cover 153 is coupled to the case 100 .

A slide slit 1534 is formed in the lower rotation guide 1530 . The slide slit 1534 guides the slider 630 and prevents the slider 630 from being separated from the case 100 .

A slide holder 631 may be further formed on the slider 630 . One end of the slide holder 631 is connected to the slider 630 and the slide slit 1534, and the other end of the slide holder 631 is located inside the base case 150, and is wider than the slide slit 1534. have a large width. Accordingly, even when the slider 630 is moved up and down, the slider 630 is prevented from being separated from the case 100 .

The slider 630 and the lever 610 are connected by a connection link 650 . One end of the connection link 650 is connected to the holder 611 , and the other end of the connection link 650 is connected to the slide holder 631 . The connection link 650 is constrained by the movement of the lever 610 and moves together.

The connection link 650 may be located inside the case 100 . In this embodiment, the connection link 650 is positioned in the space between the inner base case 150a and the outer base case 150b, and may be guided to the inner base case 150a and the outer base case 150b.

The lower cover pusher 640 is rotatably coupled to the slider 630 and is guided to the outer surface of the case 100 to push the cover 153 . Accordingly, when an external force is applied to the slider 630 , the cover 153 is separated from the case 100 by the lower cover pusher 640 .

The lower cover pusher 640 is rotatably coupled to the slider 630, the lower cover pusher 640 is hinged to the slider 630 to rotate, and the lower cover pusher 640 is connected to one end of the slider 630 to be bent and rotated. include that In addition, the lower cover pusher 640 is rotatably coupled to the slider 630 is that the lower cover pusher 640 is a flexible material, and as the whole is bent, one end of the lower cover pusher 640 moves in the outer direction. include In this embodiment, the cover 153 pusher is hinged to the lower end of the slider 630 .

The lower cover pusher 640 may be disposed in a coupling region of the base case 150 where the cover 153 is coupled to the base case 150 . Here, the coupling region means a position that horizontally overlaps the cover 153 in the base case 150 . The coupling region may be a part of the base case 150 or the entire base case 150 .

The lower cover pusher 640 is positioned between the cover 153 and the base case 150 . When the cover 153 is coupled to the base case 150 , the lower cover pusher 640 is not exposed to the outside by the cover 153 . The lower cover pusher 640 is located in the lower pusher receiving groove 1531 formed in the base case 150 to be described later.

Accordingly, in a state in which the cover 153 is coupled to the base case 150 , the lower cover pusher 640 is covered by the cover 153 , thereby improving the aesthetic feeling given to the user. Also, since there is no need for a separate space in which the lower cover pusher 640 rotates, there is an advantage that a slim product can be implemented.

The lower cover pusher 640 may be located lower than the upper cover pusher 620 . When the lever 610 is operated, the upper and lower parts of the cover 153 are separated at the same time by the upper cover pusher 620 and the lower cover pusher 640 , so that the cover 153 is stably separated.

The lower rotation guide 1530 guides the lower cover pusher 640 to rotate in one direction when the lower cover pusher 640 moves along the outer surface of the base case 150 . In addition, the lower rotation guide 1530 accommodates the lower cover pusher 640 .

The lower rotation guide 1530 may include an outer surface (outer peripheral surface) of the base case 150 and a lower guide surface 1532 having an inclination to guide the lower cover pusher 640 .

The lower guide surface 1532 may extend in a direction crossing the vertical direction of the outer peripheral surface of the base case 150 . The lower guide surface 1532 may extend in a direction crossing the vertical direction. Specifically, the lower guide surface 1532 may have an inclination that is not parallel to the outer surface of the base case 150 . The lower guide surface 1532 may be inclined downward from the inside to the outside of the base case 150 .

At this time, the lower surface 641 of the lower cover pusher 640 may be inclined downward from the inside to the outside to correspond to the lower guide surface 1532 . Accordingly, when the lower cover pusher 640 moves downward due to the interference between the lower surface of the lower cover pusher 640 and the lower guide surface 1532 , the lower end of the lower cover pusher 640 protrudes to the outside.

At least a portion of the lower guide surface 1532 vertically overlaps with the upper end of the lower cover pusher 640 . At least a portion of the lower guide surface 1532 vertically overlaps with the upper end of the lower cover pusher 640 in a state in which the cover 153 is coupled.

The lower rotation guide 1530 is formed in the base case 150 . Specifically, the base case 150 is disposed in an area that horizontally overlaps with the cover 153 . Accordingly, when the cover 153 is coupled to the base case 150 , the lower rotation guide 1530 is not exposed to the outside by the cover 153 .

More specifically, the base case 150 includes an inner base case 150a and an outer base case 150b disposed to surround at least a portion of the inner base case 150a, and the lower guide surface 1532 is the outer base case It is formed on the outer surface of (150b).

The lower rotation guide 1530 may further include a lower pusher receiving groove 1531 accommodating the lower cover pusher 640 . The lower pusher receiving groove 1531 may receive a portion of the slider 630 when the slider 630 moves downward.

The lower pusher receiving groove 1531 accommodates the lower cover pusher 640 and the slider 630 when the slider 630 does not operate, and when the slider 630 moves downward, the lower cover pusher 640 . and guides the movement of the slider 630 .

In this embodiment, the lower pusher receiving groove 1531 is formed by recessing the outer peripheral surface of the outer base case 150b in the inward direction. That is, the lower pusher receiving groove 1531 is opened outwardly from the outer base case 150b. In addition, in order to accommodate and guide the slider 630 when the lower pusher accommodating groove 1531 and the slider 630 move downward, the lower direction is opened and communicates with the lower portion of the slider 630 accommodating groove. The lower pusher receiving groove 1531 and the slider 630 receiving groove are vertically positioned to at least partially overlap.

A lower guide surface 1532 is formed on one surface of the lower pusher receiving groove 1531 . The lower guide surface 1532 is formed on the lower surface of the lower pusher receiving groove 1531 . Guided along the lower guide surface 1532, the lower cover pusher 640 is detached from the pusher receiving groove 1521 to the outside.

The position of the cover separation unit 600 is not limited. Preferably, since it is common for the user to arrange the rear of the fan device 1 for the air conditioner toward the wall, the cover separation unit 600 is disposed on the rear side of the fan device 1 for the air conditioner.

Specifically, the cover separation unit 600 is disposed at a position where at least a portion of the blowing space 105 vertically overlaps. The lever 610 is positioned to vertically overlap with the blowing space 105 at least in part. The lever 610 is disposed under the blowing space 105 . In addition, the upper cover pusher 620 , the lower cover 153 pusher and the slider 630 may be disposed at positions that vertically overlap the blowing space 105 .

14 is a plan cross-sectional view taken along line IX-IX of FIG. 3 , and FIG. 15 is a bottom cross-sectional view taken along line IX-IX of FIG. 3 .

5, 14 or 15, the first outlet 117 of the first tower 110 is disposed to face the second tower 120, the second outlet 127 of the second tower 120 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 is installed to penetrate the inner wall 125 of the second tower 120 . .

A first discharge opening 118 in which the first discharge case 170 is installed is formed in the first tower 110, and a second discharge opening 118 in which the second discharge case 180 is installed in the second tower 120 ( 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 a first discharge port 117, A second discharge guide 174 disposed on the opposite side of the air discharge of the first discharge port 117 is included.

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 inner side of the first discharge guide 172 is disposed to face the first discharge space (103a), 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 curved surface continuous with the outer surface of the first inner wall 115 .

The outer surface 174a of the second discharge guide 174 may provide a surface continuous 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 may form a continuous curved surface with the inner surface of the first outer wall 115 , and through this, the air in the first discharge space 103a may be guided toward the first discharge guide 172 .

A 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 is blown through the first discharge port 117 through the blowing space 105. is discharged with

Specifically, the air of 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 172 A discharge interval 175 is defined between the outer surface 172a of the 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 is gradually narrowed from the inlet to the middle portion 175b of the discharge interval 175, and the cross-sectional area is again widened from the middle portion 175b to the outlet 175c. 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 greater than the radius of curvature of the outer surface 172a of the first discharge guide 172 is formed.

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 a second discharge port 127, 2 and a second discharge guide 184 disposed on the opposite side of the air discharge of the 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 fan device 1 for the air conditioner may further include an air flow converter 400 for changing the air flow direction of the blowing space 105 . The airflow converter 400 is a component that opens the blowing space 105 or closes the blowing space 105 to change the direction of air flowing through the blowing space 105 .

Of course, the airflow converter 400 may change the direction of air flowing through the blowing space 105 by partially opening the blowing space 105 or partially closing the blowing space 105 . Blowing space 105 In the present embodiment, the airflow converter 400 may convert the horizontal airflow flowing through the blowing space 105 into an upward airflow.

16 and 17 are perspective views of the airflow converter 400 . In more detail, FIG. 16 shows an airflow converter 400 that opens the front of the blowing space 105 to implement a front discharge airflow. 1 to 6, the airflow converter 400 is shown as a box, and the airflow converter 400 is disposed on the top of the first tower 110 or on the top of the second tower 120 .

FIG. 17 shows an airflow converter 400 that blocks the front of the blowing space 105 to implement an upward airflow, and referring to FIG. 6 , the airflow converter 400 is the first disposed in the first tower 110 It includes a first airflow converter 401 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. Hereinafter, the first airflow converter 401 will be mainly described, and the description of the second airflow converter 402 having the same configuration as the first airflow converter 401 will be omitted.

The airflow converter 400 is disposed in the tower case 140 and provides a driving force for movement of the space board 410 and the space board 410 reciprocating between the blowing space 105 and the tower case 140 . and a guide motor 420 that is installed in the tower case 140 and includes a board guider 430 that guides the movement of the space board 410 .

15 to 17, the space board 410 is disposed in at least one of the first tower 110 or the second tower 120, and by moving between the inside of the tower and the blowing space 105, It is a component that selectively changes the discharge area in front of the blowing space 105 . The space board 410 is exposed to the front of the blowing space 105 through the board slits 119 and 129 .

The space board 410 may be hidden inside the tower, and when the guide motor 420 is operated, it may protrude from the tower to shield the blowing space 105 . In this embodiment, the space board 410 includes a first space board 410 and 411 disposed on the first tower 110 and a second space board 410 and 412 disposed on the second tower 120 . includes

To this end, referring to FIG. 15 , a board slit 119 penetrating the inner wall 115 of the first tower 110 is formed, and a board slit penetrating the inner wall 125 of the second tower 120 . (129) are respectively 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 extend long in the vertical direction (the second 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 space board 410 may be formed in a flat or curved plate shape. The space board 410 may be formed to extend long in the vertical direction, and may be disposed to be biased forward in the center of the blowing space 105 . The space board 410 may include a curved portion convex in a radial direction. The space board 410 may block the horizontal airflow flowing into the blowing space 105 and change the direction in the upward direction.

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

When the airflow converter 400 forms an upward airflow, the inner end 411a of the first space board 410, 411 closes the first board slit 119, and the second space board 410, 412 ) of the inner end 412a may close the second board slit 129 .

When the airflow converter 400 forms a horizontal airflow, the inner ends 411a of the first space boards 410 and 411 penetrate the first board slit 119 and protrude into the blowing space 105, 2 The inner ends 412a of the space boards 410 and 412 may protrude into the blowing space 105 through the second board slit 129 .

In the present embodiment, the first space boards 410 and 411 and the second space boards 410 and 412 protrude into the blowing space 105 by a rotation operation. Unlike the present embodiment, at least one of the first space boards 410 and 411 and the second space boards 410 and 412 may be linearly moved in a slide manner to be exposed to the blowing space 105 . The first space boards 410 and 411 and the second space boards 410 and 412 move in a first direction (horizontal direction).

When viewed from the top view, the first space boards 410 and 411 and the second space boards 410 and 412 are formed in an arc shape. The first space boards 410 and 411 and the second space boards 410 and 412 form a predetermined radius of curvature, and the center of curvature is located in the blowing space 105 .

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

The space board 410 may be formed of a transparent material.

The guide motor 420 is a component that provides a driving force to the space board 410 . The guide motor 420 is disposed in at least one of the first tower 110 and the second tower 120 . The guide motor 420 is disposed above the space board 410 .

The guide motor 420 includes a first guide motor 421 for providing a rotational force to the first space boards 410 and 411, and a second guide motor for providing a rotational force to the second space boards 410 and 412 ( 422).

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 particular, referring to FIG. 18 , the guide motor 420 may be coupled to the tower case 140 . The tower case 140 may include a guide body 440 in which the guide motor 420 is installed. In this embodiment, the guide motor 420 is fastened to the guide body 440 . The guide body 440 may be formed integrally with the tower case 140 or may be configured separately for the convenience of assembly.

A pinion gear 423 is shaft-coupled to the guide motor 420 . The pinion gear 423 is coupled to a shaft (not shown) of the guide motor 420 . When the guide motor 420 operates, the pinion gear 423 rotates.

The axis of rotation of the pinion gear 423 may be disposed in a direction crossing the longitudinal direction of the space board 410 . The axis of rotation of the pinion gear 423 is preferably arranged in parallel with the horizontal direction.

The pinion gear 423 is gear-coupled to the rack 436 formed on the board guider 430 . When the pinion gear 423 rotates in the horizontal direction as an axis, the rack 436 moves up and down, and the board guider 430 connected to the rack 436 is raised and lowered.

The board guider 430 is a component that transmits the driving force of the guide motor 420 to the space board 410 . The board guider 430 is disposed in front of the guide motor 420 and disposed in the rear of the space board 410 . The board guider 430 is connected to the space board 410 and moves in a direction crossing the movement direction of the space board 410 . The board guider 430 is lifted up and down in the vertical direction.

The board guider 430 disposed in the first tower 110 is defined as the first board guider 430a, and the board guider 430 disposed in the second tower 120 is defined as the second board guider 430b. do.

The board guider 430 may be disposed in parallel with the space board 410 . The board guider 430 may be disposed parallel to the first board slit 119 or the second board slit 129 .

The board guider 430 may have a curved front surface. The front surface of the board guider 430 is adjacent to the rear surface of the space board 410 . When the rear surface of the space board 410 is formed in an arc shape, the front surface of the board guider 430 is formed in a curved surface so that the space board 410 can slide along the front surface of the board guider 430 .

The board guider 430 may have a flat rear surface. The rear surface of the board guider 430 is adjacent to the front surface of the airflow converter first cover 441 . The board guider 430 may slide along the airflow converter first cover 441 .

The upper end of the board guider 430 is disposed above the space board 410 . When a plate for shielding the guide motor 420 from the discharge spaces 103a and b is formed, the upper end of the space board 410 may be disposed lower than the plate, and the upper end of the board guider 430 may be disposed above the plate.

The board guider 430 may have a first slit 432 formed therein. The first protrusion 4111 of the space board 410 is inserted into the first slit 432 , and when the board guider 430 moves, the space board 410 is moved.

19 and 20 , the first slit 432 is formed by opening the board guider 430 of the board guider 430 to guide the movement of the space board 410 . The first protrusion 4111 is formed to protrude from one side of the space board 410 , and at least a portion is inserted into the first slit 432 , and slides along the first slit 432 .

The left end of the first slit 432 (refer to FIG. 19 ) is disposed close to the left end of the board guider 430 , and the right end of the first slit 432 is disposed at the right end of the board guider 430 .

A portion of the first slit 432 relatively close to the blowing space 105 may have a lower height than a portion relatively far from the blowing space 105 . Specifically, the lower end of the first slit 432 is disposed closer to the blowing space 105 than the upper end of the first slit 432 . For example, referring to FIG. 19 , the lower end of the first slit 432 formed in the first board guiders 430 and 430a is disposed to the right of the upper end of the first slit 432 . Likewise, although not shown, the lower end of the second slit 434 formed in the second board guiders 430 and 430b will be disposed to the left of the upper end of the second slit 434 .

The first slit 432 includes a slit inclined portion 4321 . The slit inclined portion 4321 may include a downwardly inclined inclination toward the blowing space 105 . For example, referring to FIG. 19 , the first slit 432 formed in the first board guider 430a is inclined downward in the right direction. Similarly, although not shown, the first slit 432 formed in the second board guider 430b is inclined downward in the left direction. Preferably, the slit inclined portion 4321 may have an inclination angle of 40 degrees to 60 degrees with respect to the vertical direction.

When the slit inclined portion 4321 is inclined downward in the direction of the blowing space 105, the titent torque ( Detent Torque) is reduced.

The position of the slit inclined portion 4321 of the first slit 432 is moved up and down as the board guider 430 rises and falls. When the board guider 430 rises, the first protrusion 4111 moves toward the lower end of the slit inclined portion 4321 of the first slit 432 . Conversely, when the board guider 430 descends, the first protrusion 4111 moves toward the upper end of the slit inclined portion 4321 of the first slit 432 .

19 and 21 , the slit inclined portion 4321 of the first slit 432 may form a chin. The width of the front end of the slit inclined portion 4321 of the first slit 432 may be smaller than the width of the rear end.

When the width of the front end of the slit inclined portion 4321 of the first slit 432 is smaller than the width of the rear end, when the first protrusion 4111 moves along the slit inclined portion 4321, the first protrusion 4111 escape is prevented.

The first protrusion 4111 forms a locking protrusion 4111b to correspond to the chin of the slit inclined portion 4321 of the first slit 432 . That is, the locking protrusion 4111b of the first protrusion 4111 is disposed at the rear end of the slit inclined portion 4321 of the first slit 432 . Accordingly, the first protrusion 4111 is not separated from the slit inclined portion 4321 of the first slit 432 .

The first slit 432 includes a vertical portion 4322 . The lower end of the vertical portion 4322 is connected to the upper end of the slit inclined portion 4321 . The vertical portion 4322 extends in the longitudinal direction (vertical direction) of the board guider 430 .

The vertical portion 4322 of the first slit 432 functions as a stopper. That is, the first protrusion 4111 has a maximum upward movement distance of the upper end of the slit inclined portion 4321 , and does not slide along the vertical portion 4322 .

The vertical portion 4322 of the first slit 432 may form a jaw. The vertical portion 4322 of the first slit 432 may have a front end width smaller than a rear end width. The first protrusion 4111 forms a locking protrusion 4111b to correspond to the chin of the vertical portion 4322 of the first slit 432 . That is, at the rear end of the vertical portion 4322 of the first slit 432 , the locking protrusion 4111b of the first protrusion 4111 is disposed. Accordingly, the first protrusion 4111 is not separated from the slit inclined portion 4321 of the first slit 432 .

The first slit 432 is disposed on the upper end of the vertical part 4322 , and includes a first protrusion insertion part 4323 for inserting the first protrusion 4111 into the first slit 432 .

The first protrusion insertion part 4323 may be formed in a shape corresponding to the cross-sectional shape of the first protrusion 4111 . The diameter of the first protrusion insertion part 4323 may be larger than the diameter of the first protrusion 4111 . In more detail, the diameter of the first projection insertion portion 4323 is formed to be larger than the diameter of the engaging projection (4111b) of the first projection.

The first protrusion 4111 is inserted into the first protrusion insertion part 4323 . The first protrusion 4111 descends along the vertical portion 4322 so that the space board 410 is fastened to the board guider 430 . The first protrusion 4111 slides down or slides up along the slit inclined portion 4321 and the space board 410 moves.

A plurality of first slits 432 may be formed. Three first slits 432 are formed in the board guider 430 . A second slit 434 is formed between the first slit 432 . The number of the first slits 432 is not limited and may be changed within a range that can be easily adopted by a person skilled in the art.

Referring to FIG. 18 , a second slit 434 may be formed in the board guider 430 . The second slit 434 extends in the longitudinal direction (vertical direction) of the board guider 430 . The second slit 434 is formed by opening the board guider 430 in the horizontal direction.

The second slit 434 is disposed between one first slit 432 and the other first slit 432 . The second slit 434 and the first slit 432 are disposed to cross each other. The second slit 434 and the first slit 432 may be alternately disposed to distribute the force and offset the bending stress of the board guider 430 .

The body protrusion 444 of the guide body 440 is inserted into the second slit 434 , and the board guider 430 slides along the body protrusion 444 .

The body projection 444 of the guide body 440 protrudes in a direction crossing the longitudinal direction of the guide body 440 . Specifically, the body projection 444 protrudes from the guide body 440 in the horizontal direction.

In more detail, the body protrusion 444 is formed on the front surface of the first cover 441 . The body protrusion 444 is formed to protrude from the first cover 441 to the front. The body projection 444 is extended in the longitudinal direction of the side of the first tower 110 or the second tower 120 . Referring to FIG. 18 , the body protrusion 444 extends in the vertical direction.

Board guider 430 may be formed with a rack (436). The rack 436 is connected to the pinion gear 423 to move the board guider 430 when the guide motor 420 operates. The rack 436 transmits the rotational force of the guide motor 420 to the board guider 430 in a linear motion. The rack 436 is disposed on the opposite side to the side facing the space board 410 in the board guider 430 . Specifically, the rack 436 may be disposed on the rear side of the upper portion of the board guider 430 .

It includes an airflow converter 400, a guide motor 420, and a guide body 440 to which the board guider 430 is installed. The guide body 440 is disposed at the rear of the board guider 430 . The guide body 440 includes a first cover 441 , a second cover 442 , and a motor support plate 443 .

The first cover 441 supports the rear surface of the board guider 430 and guides the sliding of the board guider 430 . The left end of the first cover 441 , that is, the outer end of the first cover 441 is disposed on the outer wall of the first tower 110 . The right end of the first cover 441 , that is, the inner end of the first cover 441 is disposed on the inner wall of the first tower 110 .

The outer end of the second cover 442 is in contact with the inner surface of the board guider 430 . Accordingly, the board guider 430 may slide along the outer surface of the second cover 442 . The motor support plate 443 is disposed on the upper end of the first cover 441 , and one side supports the guide motor 420 , and the other side supports the board guider 430 .

The motor support plate 443 may be formed to protrude upward from the upper end of the first cover 441 . The motor support plate 443 is disposed on the outer side of the second cover 442 . The upper end of the motor support plate 443 is disposed above the motor. In more detail, the upper end of the motor support plate 443 is disposed above the pinion gear 423 .

As shown in FIG. 22 , the guide body 440 may include a rail 445 for guiding a roller 412 to be described later.

The first protrusion 4111 is formed on the space board 410 . In more detail, the first protrusion 4111 is formed on the rear surface of the space board 410 . Referring to FIG. 22 , the first protrusion 4111 is formed adjacent to one end of the space board 410 in the width direction. However, the present invention is not limited thereto, and the position of the first protrusion 4111 may be changed within a range that can be easily adopted by a person skilled in the art.

The first protrusion 4111 may form a locking protrusion 4111b. Referring to FIG. 21 , the locking jaw 4111b of the first protrusion is formed to protrude outward in the radial direction from the end of the first protrusion 4111 . The locking jaw 4111b of the first protrusion is caught by the chin of the slit inclined portion 4321 or the vertical portion 4322 of the first slit 432 and is not separated.

When the board guider 430 and the first slit 432 rise or fall, the first protrusion 4111 and the space board 410 are drawn in or protrude. When the board guider 430 rises, the first protrusion 4111 is located at the lower end of the slit inclined portion 4321 of the first slit 432 . When the first protrusion 4111 is located at the lower end of the slit inclined portion 4321, the space board 410 moves in the circumferential direction, and is introduced into the tower case 140 through the first board slit 119. . When the board guider 430 descends, the first protrusion 4111 is positioned on the upper end of the slit inclined portion 4321 of the first slit 432 . When the first protrusion 4111 is located on the upper end of the slit inclined portion 4321 , the space board 410 moves in the circumferential direction, and protrudes to the outside of the tower case 140 through the first board slit 119 . .

The board guider 430 includes a second slit 434 formed through one side. The guide body 440 is formed to protrude from one side, and at least a portion includes a body protrusion 444 inserted into the second slit 434 .

Referring to FIG. 18 , the airflow converter 400 includes a friction reducing protrusion 437 spaced apart between the board guider 430 and the space board 410 to prevent surface contact. The friction reducing protrusion 437 separates the space board 410 and the board guider 430 from each other in the horizontal direction.

The friction reducing protrusion 437 may be formed on at least one of the board guider 430 and the space board 410 . The friction reducing protrusion 437 may protrude from the board guider 430 and the space board 410 in a horizontal direction. Hereinafter, although the description is based on the fact that the friction reducing protrusion 437 is formed on the board guider 430 , this description may be directly applied to the space board 410 having the friction reducing protrusion 437 formed thereon.

The friction reducing protrusion 437 is formed on the board guider 430 , protrudes from a surface facing the space board 410 , and may be in contact with the space board 410 . Specifically, the friction reducing protrusion 437 is formed to protrude forward from the front surface 438, which is the surface facing the space board 410 in the board guider 430 .

As another example, the friction reducing protrusion 437 may be formed on the space board 410 , protrude from a surface facing the board guider 430 , and come into contact with the space board 410 . Specifically, the friction reducing protrusion 437 is formed to protrude backward from the rear surface of the space board 410 facing the board guider 430 .

Since the space board 410 reciprocates in the horizontal direction (first direction), the friction reducing protrusion 437 extends in the first direction. That is, the friction reducing protrusion 437 has the longest length in the first direction. The width of the friction reducing protrusion 437 in the second direction (vertical direction) is smaller than the length of the friction reducing protrusion 437 in the first direction, and is smaller than the width of the board guider 430 . If the width of the friction reducing protrusion 437 is too wide, the friction reducing effect cannot be expected, so 5 mm or less is preferable.

Accordingly, the friction reducing protrusion 437 reduces friction between the space board 410 and the board guider 430 moving in the first direction. However, when only one friction reducing protrusion 437 is disposed, the movement of the space board 410 becomes unstable, so that a plurality of friction reducing protrusions 437 are arranged spaced apart in the second direction intersecting the first direction. it is preferable More preferably, three friction reducing protrusions 437 may be disposed on the upper part, the middle part, and the lower part of the board guider 430 .

Referring to FIGS. 18 and 22 , the airflow converter 400 separates the tower case 140 and the space board 410 from each other to prevent surface contact between the tower case 140 and the space board 410. A roller 412 ) may be further included.

The roller 412 may be installed on one of the tower case 140 and the space board 410 . In this embodiment, the roller 412 is installed on the space board 410 . The roller 412 may be located under the space board 410 . A rotation axis of the roller 412 may extend in a horizontal direction. More specifically, the axis of rotation of the roller 412 extends in the front-rear direction.

The roller 412 is installed on the lower rear surface of the space board 410 , and the roller 412 is supported on the upper surface of the tower case 140 . The roller 412 is in sliding friction with the tower case 140 while supporting the weight of the space board 410 . Specifically, the roller 412 is supported on the guide body 440 of the tower case 140 . The roller 412 may be guided by the guide body 440 by the rail 445 .

When the roller 412 moves in the tower case 140 while supporting the space board 410 in the vertical direction, friction between the tower case 140 and the space board 410 while supporting the weight of the space board 410 . will reduce In addition, the roller 412 stably maintains the space board 410 when the space board 410 moves.

In particular, even when the space board 410 protrudes toward the blowing space 105 , the roller 412 is biased toward one side in the width direction of the space board 410 so that the roller 412 is supported by the tower case 140 . can be placed. Specifically, the roller 412 may be located at one end far from the blowing space 105 side among both ends in the width direction of the space board 410 .

Although not shown in the drawing, the airflow converter 400 separates the tower case 140 and the space board 410, and may further include a guide pin installed on one of the tower case 140 and the space board 410. there is.

The guide pin may be installed on one of the tower case 140 and the space board 410 . In this embodiment, the guide pin is installed on the space board 410 . The guide pin may be positioned under the space board 410 . The guide pin has a cylindrical shape extending in the horizontal direction. The guide pins extend in the front-rear direction.

When the guide pin slides in the tower case 140 while supporting the space board 410 in the vertical direction, while supporting the weight of the space board 410, friction is generated between the tower case 140 and the space board 410. will reduce The guide pin may be located at one end far from the blowing space 105 side among both ends of the space board 410 in the width direction.

The airflow converter 400 is disposed in front of the first outlet 117 or the second outlet with respect to the air outlet direction. Air is discharged forward from the first discharge port 117 or the second discharge port. As the air passes through the first inner wall 115 or the second inner wall 125, the Coanda effect is generated. The airflow transducer 400 is disposed on the first inner wall 115 or the second inner wall 125 to selectively change the wind direction. The airflow converter 400 may implement a wide headwind, a concentrated wind, or an updraft according to the degree of protrusion.

A driving method of the airflow converter 400 will be described as follows.

16 and 17 , when the guide motor 420 operates, the pinion gear 423 rotates, and the rack 436 meshed with the pinion gear 423 moves while the board guider 430 is raised and lowered.

When the board guider 430 rises, the positions of the first slit 432 and the second slit 434 also increase. The second slit 434 slides down along the body protrusion 444 . As the position of the first slit 432 increases, the first protrusion 4111 gradually moves to the right, and the space board 410 penetrates the board slit and protrudes into the blowing space 105 .

That is, the blowing space 105 is closed by the space board 410 . The air discharged through the blowing space 105 forms an upward airflow.

When the board guider 430 descends, the positions of the first slit 432 and the second slit 434 are also lowered. The second slit 434 slides up along the body protrusion 444 . As the position of the first slit 432 is lowered, the first protrusion 4111 gradually moves to the left, and the space board 410 is introduced into the tower case 140 through the board slit. That is, the blowing space 105 is opened by the space board 410 . The air discharged through the blowing space 105 spreads to the left and right while being discharged forward to form a wide wind.

When the board guider 430 is raised or lowered and positioned in the middle, the space board 410 penetrates the board slit to shield a part of the blowing space 105 . That is, the blowing space 105 is partially opened by the space board 410 . The air discharged through the blowing space 105 is intensively discharged forward to form a concentrated wind.

14 and 15 , the first tower 110 is disposed toward the blowing space 105 and includes a first inner wall 115 having a first outlet 117 formed therein. The second tower 120 is disposed toward the blowing space 105 and includes a second inner wall 125 in which a second outlet is formed. The heater 500 is disposed to be spaced apart from the inner surface of at least one of the first inner wall 115 and the second inner wall 125 . A space through which air can flow is formed between the heater 500 and the first inner wall 115 , and air flows through the space. A space in which air can flow is formed between the heater 500 and the second inner surface, and air flows in the space. Air flows between the heater 500 and the inner surface, thereby forming a wall of air. Therefore, the heat emitted from the heater 500 does not convect to the first inner wall 115 or the second inner wall 125, and prevents the first inner wall 115 and the second inner wall 125 from being overheated. prevent.

14 and 15 , the first tower 110 includes a first outer wall 114 formed on an outer side of the first inner wall 115 . The second tower 120 includes a second outer wall 124 formed outside of the second inner wall 125 . The heater 500 is disposed to be spaced apart from the inner surface of the first outer wall 114 or the second outer wall 124 . A space in which air can flow is formed between the heater 500 and the inner surface of the first outer wall 114 , and air flows in the space. A space in which air can flow is formed between the heater 500 and the inner surface of the second outer wall 124 , and air flows in the space. Air flows between the heater 500 and the inner surface of the outer wall, thereby forming a wall of air. Accordingly, heat emitted from the heater 500 does not convect to the first outer wall 114 or the second outer wall 124 , and the first outer wall 114 and the second outer wall 124 are prevented from being overheated.

14 and 15 , the heater 500 is disposed closer to the first inner wall 115 than the first outer wall 114 . The heater 500 is disposed closer to the second inner wall 125 than the second outer wall 124 . The air discharged from the first outlet 117 flows at a high speed to the first inner wall 115 , and the air discharged from the second outlet flows to the second inner wall 125 at a high speed. Forced convection occurs in the first inner wall 115 and the second inner wall 125 as air flows at a high speed, and the first inner wall 115 and the second inner wall 125 are cooled faster. can However, air flows at a slow speed in the first outer wall 114 and the second outer wall 124 due to the indirect Coanda effect. Accordingly, the cooling rate of the first outer wall 114 is slower than that of the first inner wall 115 , and the cooling rate of the second outer wall 124 is slower than that of the second inner wall 125 . Accordingly, by disposing the heater 500 closer to the first inner wall 115 or the second outer wall 124 , overheating of the tower case 140 may be more effectively prevented.

Referring to FIG. 5 , the lower end of the heater 500 is disposed closer to the rear lower end than the front lower end of the first tower 110 or the second tower 120 . Accordingly, the cross-sectional area of the discharge space 103 is larger in the lower part than the upper part.

The amount of air flowing from the lower end of the first tower or the second tower 120 is the maximum, and it passes through the heater 500 toward the upper part and is discharged into the blowing space 105, the first tower 110 or the second tower The amount of air flowing at the top of 120 is minimal. The lower end of the heater 500 may be disposed closer to the rear lower end than the front lower end of the first tower 110 or the second tower 120 to form a discharge space 103 suitable for the air flow rate. Accordingly, it is possible to prevent pressure loss and improve efficiency by compensating for the pressure difference.

The heater 500 further includes a flow path shielding member 540 that blocks air from flowing between the heat dissipation fins 530 and the first or second outlets 117 or 117 . Referring to FIG. 5 , the flow path blocking member 540 is disposed at the lower end of the heater 500 and extends toward the lower end of the first outlet 117 or the second outlet.

The flow path shielding member 540 is disposed inside the tower case 140 . The lower end of the flow path shielding member 540 is disposed above the suction grill.

The flow path shielding member 540 is inclined so that the rear end is disposed above the front end.

The flow path shielding member 540 extends to the rear end of the first tower 110 or the second tower 120 .

A lower end of the first outlet 117 or the second outlet is disposed above the flow path blocking member 540 .

As shown in FIG. 7 , the flow path shielding member 540 extends to the left or right from the front end of the lower horizontal plate 513 , and also extends to the rear. Accordingly, it may be formed in a semicircular shape. Alternatively, the flow path shielding member 540 may be formed to have the same width as that of the lower horizontal plate 513 as shown in FIG. 5 , and may extend to the rear end.

The flow path shielding member 540 prevents the air flowing through the first discharge space 103a or the second discharge space 103b from being directly discharged to the first discharge port 117 or the second discharge port without passing through the heater 500 . prevent. In more detail, the flow path shielding member 540 shields the rear lower end, the left lower end, the right lower end of the heater 500 and the inner surface of the first tower 110 , and the rear lower end, the left lower end, and the right side of the heater 500 . The lower end and the inner surface of the second tower 120 are shielded. Accordingly, the air flow directly discharged from the lower rear end, the left lower end, and the right lower end of the heater 500 to the first outlet 117 or the second outlet is shielded to improve efficiency.

24 to 26, in the fan device for an air conditioner according to another embodiment of the present invention, in addition to the heater 500, the air guide 160 for guiding the air whose direction has been changed to the first outlet 117 or the second outlet ) may be further included.

The air guide 160 is a component that converts the flow direction of air to a horizontal direction 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 the horizontal direction, and the redirected air flows to the outlets 117 and 127 .

When it is necessary to separate the air guide 160 , the first air guide 161 disposed inside the first tower 110 is referred to as the first air guide 161 , and the second air guide 162 disposed inside the second tower 120 . say

The outer end of the first air guide 161 is coupled to the outer wall of the first tower (110). The inner end of the first air guide is adjacent to the first heater (501).

The first air guide 161 has a front end close to the first outlet 117 . The front end of the first air guide may be coupled to an inner wall adjacent to the first outlet 117 . The rear end of the first air guide 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 has a convex curved surface from the lower side to the upper side, and the rear end is disposed lower than the front end.

The first air guide 161 may be divided into a curved portion 161f and a flat portion 161e.

The rear end of the flat portion 161e of the first air guide 161 is close to the first discharge guide. The flat portion 160e of the first air guide may extend forward, and in more detail, may extend horizontally on the ground.

The rear end of the curved portion 161f of the first air guide is disposed on the flat portion of the first air guide. The curved portion 160f of the first air guide extends downward in the front while forming a curved surface. The front end of the curved portion 160f of the first air guide is disposed lower than the rear end. The front end and the rear end of the curved portion 160f of the first air guide may be formed with a horizontal distance between 10 mm and 20 mm from the ground. The horizontal distance between the front and rear ends of the curved portion 160f of the first air guide from the ground is defined as the curvature length. That is, the curvature length of the curved portion of the first air guide may be formed between 10 mm and 20 mm.

The entrance angle a4 of the front end of the curved portion 160f of the first air guide may be formed at 10 degrees. The entrance angle a4 is defined as an angle between a vertical line with respect to the ground and a tangent line of the front end of the curved surface portion 160f of the first air guide.

At least a part of the right end of the first air guide 161 is adjacent to the outside of the heater 500 , and the other part is coupled to the inner wall of the first tower 110 . The left end of the first air guide 161 may be in close contact with or coupled to the outer 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. In other words, the air that has passed through the fan device 300 rises and flows backward under the guidance of the first air guide 161 .

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

The outer end of the second air guide 162 is coupled to the outer wall of the second tower (120). An inner end of the second air guide 162 is adjacent to the second heater 502 .

The second air guide 162 has a front end close to the second outlet 127 . The front end of the second air guide 162 may be coupled to an inner wall adjacent to the second outlet. The rear end of the second air guide 162 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 is disposed lower than the front end.

The second air guide 162 may be divided into a curved portion 162f and a flat portion 162e.

The rear end of the flat portion 162e of the second air guide approaches the second discharge guide. The flat portion of the second air guide may extend forward, and in more detail, may extend horizontally to the ground.

The rear end of the curved portion 162f of the second air guide is disposed at the front end of the flat portion 162e of the second air guide. The curved portion 162f of the second air guide extends downward in the front while forming a curved surface. The front end of the curved portion 162f of the second air guide is disposed lower than the rear end. The front end and the rear end of the curved portion 162f of the second air guide may be formed with a horizontal distance between 10 mm and 20 mm from the ground. The horizontal distance between the front and rear ends of the curved portion 162f of the second air guide from the ground is defined as the curvature length. That is, the curvature length of the curved surface portion 162f of the second air guide may be formed between 10mm and 20mm.

The entrance angle a4 of the front end of the curved portion 162f of the second air guide may be formed at 10 degrees. The entrance angle (a4) is defined as the angle between the vertical line to the ground and the tangent to the front end of the curved surface of the second air guide.

At least a portion of the left end of the second air guide 162 is adjacent to the outside of the second heater 502 , and the remaining portion is coupled to the inner wall of the second tower 120 . The right end of the second air guide 162 may be in close contact with or coupled to the outer wall of the second tower 120 .

Therefore, the air moving upward along the discharge space 103 flows from the rear end of the second air guide 162 to the front end. In other words, the air that has passed through the fan device 300 rises and flows backward under the guidance of the second air guide 162 .

When the air guide 160 is installed, the direction of air rising in the vertical direction is changed to the horizontal direction. Accordingly, there is an advantage in that air at a uniform flow rate can be discharged from the air outlets formed long vertically. In addition, there is an effect that air can be discharged horizontally.

When the inlet angle a4 of the air guide 160 is large or the curvature length is long, there is a problem in that noise increases by acting as a resistance to the air rising in the vertical direction. Conversely, when the curvature length of the air guide is short, horizontal discharge is impossible because it does not serve to guide the air. Therefore, when the inlet angle (a4) according to the present invention is arranged or formed in a curvature length, there is an effect of increasing the air volume and reducing the noise.

29 shows a graph for explaining the difference in the effect between the air guide according to the present invention and the prior art.

The upper graph of FIG. 29 shows the amount of discharged air compared to the rotational speed of the fan according to the inlet angle a4 of the air guide. Although not mentioned in FIG. 29, the curvature length of the curved portion of the air guide may also have an effect. When the rotation speed of the fan is low, there is no significant difference, but when the rotation speed of the fan increases, there is a difference in the amount of air discharged. For example, when the rotation speed of the fan is 2500 RPM, the flow rate discharged from the air purifier according to the prior art is about 13.4 CMM, but the flow rate discharged from the air purifier having the air guide according to the present invention is about 14 CMM. . According to the present invention, when the fan is based on the same RPM, there is an effect that the air volume is increased by about 4% compared to the prior art.

The lower graph of FIG. 29 shows the noise generated compared to the air volume of the fan according to the inlet angle a4 of the air guide. Although not mentioned in FIG. 29, the curvature length of the curved portion of the air guide may also have an effect. There is no significant difference when the discharged air volume is low, but there is a difference in the generated noise when the air volume increases. For example, when the air volume is 10.0 CMM, the noise generated by the air purifier according to the prior art is about 40.5 dB, but the noise generated from the air purifier having the air guide according to the present invention is about 40 dB. According to the present invention, based on the same air volume, there is an effect that the noise generated in the prior art is reduced by about 0.5 dB.

The airflow converter 400 may be disposed above the heater 500 . In more detail, the guide motor 420 may be disposed above the heater 500 . The guide motor 420 generates a driving force, the space board 410 changes the discharged air, and the board guider 430 transmits the driving force of the guide motor 420 to the space board 410 . The space board 410 and the board guider 430 may be disposed in front of the heater 500 , but the guide motor 420 is disposed above the heater 500 . Therefore, it is possible to efficiently utilize the space and prevent the guide motor 420 from interfering with the flow of air inside the discharge space 103 . The guide motor 420 is a component that generates heat, and has a disadvantage in being vulnerable to heat. Accordingly, by disposing the guide motor 420 above the heater 500 , it is not disposed on the air flow path, and heat from the heater 500 can be prevented from convection to the guide motor 420 .

Hereinafter, with reference to FIG. 24, the flow of air flowing around the heater viewed from the top will be described. The air that has passed through the fan device 300 rises in front of the heater. The flow direction of the air rising in front of the heater is changed to the rear. Most of the air is heated through the heater, and warm air is discharged into the blowing space. Some air flows through the space between the heater and the outer walls 114 and 124 . This air forms an air curtain between the heater and the outer wall, preventing heat from the heater from convecting to the outer wall. Some other air flows into the space between the heater and the inner wall. This air forms an air curtain between the heater and the inner wall, preventing heat from the heater from convecting to the inner wall.

27 is an exemplary view showing the horizontal air flow of the fan device for an air conditioner according to the first embodiment of the present invention.

Referring to FIG. 27 , when a horizontal airflow is provided, the first space board 411 is hidden inside the first tower 110 , and the second space 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 joined in the blowing space 105 and may flow forward through the front ends 112 and 122 .

And the air behind the blowing space 105 may flow forward after being guided into the blowing space 105 .

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 . there is.

Since the first outlet 117 and the second outlet 127 are formed to extend long in the vertical direction and are symmetrically disposed, the air flowing from the upper side of the first outlet 117 and the second outlet 127 and the lower side It is possible to form more uniform air flowing in the

In addition, since the air discharged from the first discharge port and the second discharge port are merged in the blowing space 105 , the straightness of the discharged air can be improved, and the air can be flowed to a more distant place.

28 is an exemplary view illustrating an upward airflow of the fan device for an air conditioner according to the first embodiment of the present invention.

Referring to FIG. 28 , when an upward airflow is provided, the first space board 411 and the second space 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 space board 411 and the second space board 412, the air discharged from the outlets 117 and 127 is the first space board 411 and the second It rises along the rear surface of the space board 412 and is discharged to the upper part of the blowing space 105 .

By forming an upward airflow in the fan device 1 for the air conditioner, 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 fan device 1 for an air conditioner may be operated with an upward airflow.

For example, when an air conditioner and a fan device for an air conditioner are used at the same time, the fan device 1 for the air conditioner can be operated with an upward air flow to promote convection of indoor air, and it can cool or heat indoor air more quickly. can

Hereinafter, the fan 320 for an air conditioner for reducing noise and noise sharpness will be described in detail.

Referring to FIG. 29 , the fan 320 of the present invention includes a hub 328 connected to a rotation shaft Ax, a plurality of blades 325 and a hub 328 installed at regular intervals on the outer circumferential surface of the hub 328 . It is spaced apart from and disposed to surround the hub 328 , and includes a shroud 32 connected to one end of the plurality of blades 325 .

The fan 320 may further include a back plate 324 provided with a hub 328 for coupling the central axis of rotation. In some embodiments, the back plate 324 and the shroud 32 may be omitted. The hub 328 has a cylindrical shape with an outer circumferential surface parallel to the axis of rotation Ax.

A plurality of blades 325 extending from the back plate 324 may be provided. The blade 325 may extend so that an outline of the blade 325 forms a curve.

The blade 325 constitutes the rotary blade of the fan 320 and performs a function of transferring the kinetic energy of the fan 320 to the fluid. A plurality of blades 325 may be provided at a predetermined interval, and may be arranged radially on the back plate 324 . One end of the plurality of blades 325 is connected to the outer peripheral surface of the hub 328 .

In addition, the shroud 32 is connected (coupled) to one end of the blade 325 . The shroud 32 is formed at a position opposite to the back plate 324 and may be formed in a circular ring shape. The shroud 32 and the hub 328 share the rotation axis Ax as a center.

The shroud 32 has a suction end 321 through which the fluid is introduced and a discharge end 323 through which the fluid is discharged. The shroud 32 may be formed to be curved so that the diameter decreases from the discharge end 323 toward the suction end 321 side.

That is, it may include a connection part 322 connecting the suction end 321 and the discharge end 323 in a curved line. The connection part may be rounded with a curvature so that the inner cross-sectional area of the shroud 32 is widened.

The shroud 32 may form a movement path of the fluid together with the back plate 324 and the blade 325 . Looking at the movement direction of the fluid, it can be seen that the fluid introduced in the central axis direction flows in the circumferential direction of the fan 320 by the rotation of the blade 325 .

That is, the fan 320 may discharge the fluid in the radial direction of the fan 320 by increasing the flow speed by centrifugal force.

The shroud 32 coupled to the end of the blade 325 may be formed to be spaced apart from the back plate 324 by a predetermined distance. The shroud 32 is provided so as to have a surface facing parallel to the back plate 324 .

Hereinafter, the blade 325 and the notch 40 formed in the blade 325 will be described in detail.

30 and 31 , each blade 325 has a leading edge 33 defining one surface in a direction in which the hub 328 is rotated, and a trailing edge defining one surface in a direction opposite to the leading edge 33 . Edge 37, a negative pressure surface 34 connecting the upper end of the leading edge 33 and the upper end of the trailing edge 37, and having a larger area than the leading edge 33 and the trailing edge 37, leading edge ( 33) and a pressure surface 36 connecting the lower end of the trailing edge 37 and facing the negative pressure surface 34;

That is, each blade 325 has a negative pressure surface 34 in the shape of a plate, and a pressure surface 36 defines a wide upper and lower surface assumed in the blade 325, and both ends in the longitudinal direction form both sides of the blade 325, , both ends in the width direction (left and right direction in FIG. 31 ) intersecting the longitudinal direction form the leading edge 33 and the trailing edge 37 . The areas of the trailing edge 37 and the leading edge 33 are smaller than the negative pressure surface 34 and the pressure surface 36 .

The leading edge 33 is located above the trailing edge 37 (see FIG. 31 ).

A plurality of notches 40 are formed in each blade 325 to reduce the noise generated by the fan and the sharpness of the noise.

Each notch 40 may be formed over a portion of the leading edge 33 and a portion of the negative pressure surface 34 . In addition, each notch 40 may be formed by recessing a corner 35 where the leading edge 33 and the negative pressure surface 34 meet in a downward direction. That is, each notch 40 is formed over an upper middle portion of the leading edge 33 and a partial region adjacent to the leading edge 33 on the negative pressure surface 34 .

The cross-sectional shape of the notch 40 is not limited and may have various shapes. However, in order to reduce fan efficiency and noise, the cross-sectional shape of the notch 40 preferably has a U-shape or a V-shape. The shape of the notch 40 will be described later.

The width W of the notch 40 may be extended from the bottom to the top. The width W of the notch 40 may be gradually or stepwise expanded toward the top.

The direction of the notch 40 may be a tangential direction of any circumference centered on the axis of rotation Ax. Here, the direction of the notch 40 means the direction of the length L11 of the notch 40 . That is, the same cross-sectional shape of the notch 40 extends in the tangential direction of the circumference.

The notch 40 may be formed along an arc of any circumference centered on the rotation axis Ax of the fan 320 . That is, the notch 40 may have a curved shape. Specifically, the same cross-sectional shape of the notch 40 is formed along the circumference.

The depth H11 of the notch 40 may become smaller as the distance from the point where the leading edge 33 and the negative pressure surface 34 meet. The depth H11 of the notch 40 is high in the center and decreases toward both ends in the longitudinal direction.

Hereinafter, the shape of each notch 40 will be described in detail. In this embodiment, the cross-sectional shape of the notch 40 is V-shaped.

Specifically, the notch 40 has a first inclined surface 42 , a second inclined surface 43 that faces the first inclined surface 42 and is connected to the lower end of the first inclined surface 42 , the first inclined surface 42 and the second The inclined surface 43 may include a bottom line 41 defined by being connected thereto.

The separation distance between the first inclined surface 42 and the second inclined surface 43 may increase toward an upper direction. The separation distance between the first inclined surface 42 and the second inclined surface 43 may be gradually increased or stepped away from each other. The first inclined surface 42 and the second inclined surface 43 may be flat or curved. The first inclined surface 42 and the second inclined surface 43 may have a triangular shape.

The bottom line 41 may extend in a tangential direction of any circumference centered on the rotation axis Ax. As another example, it may extend along an arbitrary circumference centered on the rotation axis Ax. That is, the bottom line 41 may form an arc centered on the rotation axis Ax.

The bottom line 41 is equal to the length L11 of the notch 40 . The direction of the bottom line 41 refers to the direction of the notch 40 . The direction of the bottom line 41 may be a direction for reducing flow separation occurring at the leading edge 33 and the negative pressure surface 34 and reducing air resistance.

Specifically, the bottom line 41 may have a horizontal plane perpendicular to the rotation axis Ax and an inclination of 0 degrees to 10 degrees. Preferably, the bottom line 41 may be parallel to a horizontal plane perpendicular to the rotation axis Ax. Accordingly, resistance can be reduced by the notch 40 while the blade 325 rotates.

The length L11 of the bottom line 41 may be longer than the height H22 of the leading edge 33 . If the length L11 of the bottom line 41 is too short, the flow separation occurring on the negative pressure surface 34 cannot be reduced, and if the length L11 of the bottom line 41 is too long, the efficiency of the fan is lowered. am.

The length L11 of the notch 40 (the length L11 of the bottom line 41 ) may be greater than the depth H11 of the notch 40 and the width W of the notch 40 . Preferably, the length L11 of the notch 40 is 5 mm to 6.5 mm, the depth H11 of the notch 40 is 1.5 mm to 2.0 mm, and the width W of the notch 40 is 2.0 mm to 2.2 can be mm.

The length L11 of the notch 40 is 2.5 to 4.33 times the depth H11 of the notch 40 , and the length L11 of the notch 40 is 2.272 times to 3.25 times the width W of the notch 40 can be a boat

One end of the bottom line 41 is positioned on the leading edge 33 , and the other end of the bottom line 41 is positioned on the negative pressure surface 34 . In the leading edge 33 , the position of the point at which one end of the bottom line 41 is positioned is preferably an intermediate height of the leading edge 33 .

At the leading edge 33 , the distance between the point at which one end of the bottom line 41 is positioned and the corner 35 is between the point at which the other end of the bottom line 41 is positioned on the negative pressure surface 34 and the corner 35 . It may be smaller than the separation distance.

The position of the point at which the other end of the bottom line 41 is positioned on the negative pressure surface 34 is preferably located between 1/5 and 1/10 points in the width of the negative pressure surface 34 .

The angle A11 between the bottom line 41 and the negative pressure surface 34 and the angle A12 between the bottom line 41 and the leading edge 33 are not limited. The angle A11 between the bottom line 41 and the negative pressure surface 34 is preferably smaller than the angle A12 between the bottom line 41 and the leading edge 33 .

It is preferable that three notches 40 are provided. The notch 40 includes a first notch 40 and a second notch 40 located further from the hub 328 than the first notch 40 and a second notch 40 located further from the hub 328 than the second notch 40 . A third notch 40 may be included. The spacing between the notches 40 is preferably 6 mm to 10 mm. The spacing between the notches 40 may be greater than the depth H11 of the notch 40 and the width W of the notch 40 .

The leading edge 33 is divided into a first area S1 adjacent to the hub 328 and a second area S2 adjacent to the shroud 32 with respect to the center, and two of the three notches 40 are The notch 40 may be positioned in the first region S1 , and the remaining notch 40 may be positioned in the second region S2 .

Specifically, the first notch 40 and the second notch 40 may be positioned in the first region S1 , and the third notch 40 may be positioned in the second region S2 . More specifically, the separation distance from the hub 328 of the first notch 40 is 19% to 23% of the length of the leading edge 33, and the separation distance from the hub 328 of the second notch 40 is the leading edge ( 33), and the distance from the hub 328 of the first notch 40 may be 65% to 69% of the length of the leading edge 33.

Among the plurality of notches 40 , the notch 40 spaced farthest from the hub 328 may have the longest length. Specifically, the length L11 of the third notch 40 is greater than the length L11 of the second notch 40, and the length L11 of the second notch 40 is the length of the first notch 40 ( L11) may be greater.

Through the shape, arrangement, and number of the notch 40 , flow separation occurring in the blade 325 of the fan is reduced, and consequently, noise generated by the fan can be reduced.

Referring to FIG. 32 , some of the fluid passing through the leading edge 33 causes turbulence in the flow through the notch 40 and flows along the wing surface to mix with the fluid passing through the leading edge 33 . Therefore, the flow separation does not occur on the surface of the blade and the noise is improved by the flow along the surface.

Referring to FIGS. 33 and 34 , it can be seen that noise and sharpness are significantly reduced when the noise and sharpness of the general fan (comparative example) and the embodiment are tested in the same environment.

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 114: first outer wall
115: first inner wall 117: first outlet
119: first board slit
120: second tower 124: second outer wall
125: second inner wall 127: second outlet
129: second board slit
130: tower base 140: tower case
150: base case 160: air guide
200: filter
400: air flow converter 410: space board
420: guide motor 430: board guider
440: airflow converter cover
500: heater

Claims (21)

a base case having a suction port through which air is sucked and accommodating a filter therein;
a tower case disposed on the upper side of the base case and having a discharge port through which the air sucked from the suction port is discharged; and
and a heater disposed inside the tower case to heat the air,
The heater is
a heat dissipation tube comprising a first heat dissipation tube and a second heat dissipation tube disposed in parallel with each other, and a third heat dissipation tube connecting one end of the first heat dissipation tube and one end of the second heat dissipation tube; a plurality of heat dissipation fins coupled to the first heat dissipation tube and the second heat dissipation tube; and
and a protective cover preventing external contact with the heater and allowing air to flow through the heater;
The first heat dissipation tube extends in a first direction, and the heat dissipation fin forms a heat dissipation surface crossing the first direction,
The protective cover,
The fan device for an air conditioner comprising: a cover inlet through which air is introduced into the cover, and a cover outlet through which air is discharged; According to claim 1,
The third heat dissipation tube is a fan device for an air conditioner having a curvature. According to claim 1,
The heat dissipation fin is
a first tube hole into which the first heat dissipation tube is inserted;
and a second tube hole into which the second heat dissipation tube is inserted. According to claim 1,
The heat dissipation surface of the heat dissipation fin is the widest surface of the heat dissipation fin. According to claim 1,
The heat dissipation surface of the heat dissipation fin defines a surface perpendicular to the first direction. According to claim 1,
The respective heat dissipation fins are arranged to be spaced apart from each other in the first direction. According to claim 1,
A pitch of the plurality of heat dissipation fins is smaller than a separation distance between the first heat dissipation tube and the second heat dissipation tube. The method of claim 1,
The discharge port extends in the first direction,
The heat dissipation fin is a fan device for an air conditioner that redirects the sucked air and guides it to the outlet. The method of claim 1,
The heat dissipation fin and the heat dissipation tube include different materials from each other. The method of claim 1,
The heater is
The fan device for an air conditioner further comprising a top heat dissipation member coupled to the third heat dissipation tube. 11. The method of claim 10,
The top heat dissipation member,
a connector into which at least a portion of the third heat dissipation tube is inserted;
and a plurality of top heat dissipation fins connected to the connector and having a larger surface area than the connector. According to claim 1,
A line connecting the center of the cover inlet and the center of the cover outlet extends in a direction intersecting the first direction, and is parallel to the longitudinal direction of the heat dissipation fin. According to claim 1,
The protective cover is
A first protective cover made of a heat-resistant material;
and a second protective cover disposed between the first protective cover and the heater and made of an insulating material. According to claim 1,
The heater is
Further comprising a fastening plate to which the protective cover is coupled,
The fastening plate is a fan device for an air conditioner coupled to the first heat dissipation tube and the second heat dissipation tube. 15. The method of claim 14,
The fastening plate is a fan device for an air conditioner coupled to the tower case. According to claim 1,
One end of the heat dissipation fin is disposed closer to the outlet than the other end of the heat dissipation fin,
The one end of the heat dissipation fin is positioned higher than the other end of the heat dissipation fin. The method of claim 1,
The protective cover,
A first side cover plate, a second side cover plate disposed to face each other, and
and a third side cover plate connecting one end of the first side cover plate and one end of the second side cover plate,
A fan device for an air conditioner in which the heat dissipation fin and the heat dissipation tube are positioned between the first side cover plate and the second side cover plate. 18. The method of claim 17,
The first side cover plate and the second side cover plate are disposed parallel to the longitudinal direction of the heat dissipation fins and extend in the vertical direction. 18. The method of claim 17,
The left and right directions of the heat dissipation fins are covered by the first side cover plate and the second side cover plate,
An upper direction of the heat dissipation fin is covered by the third side cover plate. 20. The method of claim 19,
The heater is
Further comprising a fastening plate to which the protective cover is coupled,
The lower direction of the heat dissipation fin is covered by the fastening plate,
A cover inlet and a cover outlet are defined in the front and rear directions of the heat dissipation fin,
A fan device for an air conditioner in which air is introduced into the protective cover through the cover inlet and discharged through the cover outlet. a base case having a suction port through which air is sucked and accommodating a filter therein;
a tower case disposed on the upper side of the base case and having a discharge port through which the air sucked from the suction port is discharged; and
and a heater disposed inside the tower case to heat the air,
The heater is
a first heat dissipation tube and a second heat dissipation tube disposed in parallel with each other; a plurality of heat dissipation fins coupled to the first heat dissipation tube and the second heat dissipation tube; and
and a protective cover preventing external contact with the heater and allowing air to flow through the heater;
The first heat dissipation tube extends in a first direction, the heat dissipation fins form a heat dissipation surface intersecting the first direction, and the heater is disposed to be spaced apart from the outlet,
The first heat dissipation tube is disposed parallel to the outlet,
The protective cover,
The fan device for an air conditioner comprising: a cover inlet through which air is introduced into the cover, and a cover outlet through which air is discharged;

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