KR20190025420A - Flow generator - Google Patents

Abstract

The present invention relates to a flow generating device. According to an embodiment of the present invention, the flow generating device can comprise: a cover in which a cover inlet part having an opened upper end portion and a cover discharge part having an opened lower end portion are formed; a top cover assembly configured to cover the cover inlet part; a fan housing disposed on the inner side of the cover and having a housing plate covering the cover discharge part; and a fan disposed in the fan housing, and allowing air introduced through the cover inlet part to be introduced in the axial direction and then to be discharged in the radial direction. The fan housing can have a discharge part spaced from the outer circumferential surface of the fan in the radial direction of the fan.

Description

Flow generator [0001]

An embodiment of the invention relates to a flow generating device.

Generally, a flow generating device is understood as a device for driving a fan to generate an air flow and blowing the generated air flow to a position desired by a user. It is usually called "fan". Such a flow generating device is mainly disposed in an indoor space such as a home or office, and can be used to provide a cool and pleasant feeling to a user in hot weather such as summer.

With respect to this flow generating device, the following prior art description has been proposed in the past.

[Prior Art 1]

1. Public number (public date): 10-2012-0049182 (May 16, 2012)

2. Name of invention: Axial fan

[Prior Art 2]

1. Public number (public date): 10-2008-0087365 (October 1, 2008)

2. Name of invention: Fan

The apparatus according to the prior arts 1 and 2 includes a support placed on the ground, a leg extending upward from the support, and a fan coupled to the upper side of the leg. The fan is constituted by an axial flow fan. When the fan is driven, air is sucked from the rear of the apparatus toward the fan, and the sucked air is discharged to the front of the apparatus through the fan.

According to the prior arts 1 and 2, the fan is exposed to the outside. The device according to the prior art 2 includes a safety cover which surrounds the outside of the fan for safety reasons, but there is still a fear that the user's finger passes through the safety cover and touches the fan. When the amount of dust in the space in which the device is placed is large, the dust is accumulated on the fan through the safety cover, and the device easily becomes dirty.

In addition, according to the apparatuses according to the prior art documents 1 and 2, since the air flow is generated and supplied to the user, when the apparatus is used in a space with a high degree of contamination, the user's health may be deteriorated.

In an environment where the temperature of the installation space is somewhat low as in the winter, the use of the device according to the prior arts 1 and 2 is not necessary and the device should be stored until the summer of the next year. Therefore, there is a problem that the usability of the apparatus is deteriorated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a flow generating device in which a fan is not exposed to the outside.

According to an embodiment of the present invention, there is provided a flow generating device including: a cover having a cover inflow portion with an open upper end and a cover discharge portion with a lower end opened; A top cover assembly covering the cover inlet; A fan housing provided inside the cover and having a housing plate covering the cover discharge portion; And a fan disposed in the fan housing and introducing the air introduced through the cover inlet in the axial direction and discharging the air in the radial direction. The fan housing may be formed with a discharge portion spaced apart from an outer peripheral surface of the fan in a radial direction of the fan.

The size of the cover discharge portion may be larger than the size of the cover inflow portion.

The top cover assembly includes: a display cover that is seated on the cover inflow portion and in which a cover grill is formed; A top cover supporter coupled to an upper side of the display cover; And a top cover disposed on the top of the top cover supporting portion.

The space between the top cover supporting part and the display cover may form a suction part communicating with the cover inflow part.

The central portion of the top cover support portion is coupled to a central portion of the display cover, and the edge portion of the top cover support portion is vertically spaced from the display cover.

The flow generating device according to an embodiment of the present invention may further include an air guide coupled to a lower side of the housing plate and guiding air discharged from the discharge portion.

A motor for rotating the fan may be disposed inside the air guide.

According to an aspect of the present invention, there is provided a flow generating device including: an upper cover having an upper cover inlet opened at an upper end thereof and an upper cover outlet opened at a lower end thereof; A top cover assembly covering the top cover inlet; An upper fan housing provided inside the upper cover and having a first housing plate covering the upper cover discharge portion; An upper fan disposed in the upper fan housing and introducing air introduced through the upper cover inlet in an axial direction and discharging the air in a radial direction; A lower cover positioned below the upper cover and having a lower cover inlet opening with a lower end and a lower cover outlet opening with an upper end; A lower fan housing provided inside the lower cover and having a second housing plate covering the lower cover discharge; And a lower fan disposed in the lower fan housing and introducing the air introduced through the lower cover inlet in an axial direction to discharge the air in a radial direction.

The upper fan housing is formed with a first discharge portion spaced apart from an outer circumferential surface of the upper fan in a radial direction of the upper fan, and the lower fan housing is provided with a first discharge portion spaced apart from an outer circumferential surface of the lower fan in a radial direction of the lower fan. 2 discharge portion can be formed.

The size of the upper cover outlet may be greater than the size of the upper cover inlet and the size of the lower cover outlet may be larger than the size of the lower cover inlet.

The flow generating device according to an embodiment of the present invention includes an upper air guide for guiding air discharged to the first discharge portion; And a lower air guide coupled to a lower side of the upper air guide and guiding air discharged to the second discharge portion.

The upper air guide may be fastened to the lower side of the upper fan housing, and the lower air guide may be fastened to the upper side of the lower fan housing.

An upper motor for rotating the upper fan and a lower motor for rotating the lower fan may be disposed in a space between the upper air guide and the lower air guide.

The flow generating device according to an embodiment of the present invention may further include a driving device for rotating the first discharging part and the second discharging part together.

The drive device includes a rotary motor; A pinion gear connected to the rotation motor; And a rack gear gear-engaged with the pinion gear and having a rounded shape.

The flow generating device according to an embodiment of the present invention may further include an upper orifice provided at a lower side of the lower fan housing from the inside of the lower cover and having a motor support portion to which the rotation motor is fixed.

The flow generating device according to an embodiment of the present invention may further include a lower orifice provided at a lower side of the upper orifice from the inside of the lower cover and formed with a rack fastening member to which the rack gear is fastened.

According to an embodiment of the present invention, there is provided a flow generating device comprising: a first supporter fastened to an upper side of a lower orifice and having a supporter center portion; And a second supporter fixed to the lower side of the upper orifice and disposed on the upper side of the first supporter and having a rotation center portion rotatably connected to the supporter center portion.

When the driving device is operated, the upper fan housing, the lower fan housing, the upper orifice and the second supporter can rotate relative to the lower orifice and the first supporter.

The lower orifice may be provided with a roller that contacts the bottom surface of the upper orifice and guides the rotation of the upper orifice.

According to a preferred embodiment of the present invention, since the fan and the fan housing are provided inside the cover, the fan may not be exposed to the outside. Thereby, there is an advantage that the fear that the user's finger is injured by the rotating fan can be reduced, and the fan can be prevented from being contaminated.

Further, since the size of the cover discharge portion is formed to be larger than the size of the cover inflow portion, the air that has passed through the fan flows so as to gradually expand in the circumferential direction and can be easily discharged to the discharge portion.

In addition, since the space between the top cover assembly and the display cover forms the suction portion, there is an advantage that a process for forming a separate suction port is not required.

In addition, the center portion of the top cover support portion and the center portion of the display cover are coupled to each other, and the edge of the top cover support portion is vertically spaced from the display cover, so that air can be sucked smoothly between the display cover and the top cover support portion.

Further, the space utilization of the flow generating device can be improved by disposing the motor for rotating the fan inside the air guide.

Further, the first discharging portion and the second discharging portion can be simultaneously rotated by the driving device, so that the airflow direction of the discharged air can be adjusted.

Further, a roller may be provided between the upper orifice and the lower orifice so that the rotation of the fixing portion can be made more smooth.

1 is a perspective view showing a configuration of a flow generation device according to a first embodiment of the present invention.
2 is a cross-sectional view taken along line II-II 'of FIG.
3 is a cross-sectional view showing the configuration of the upper module and the lower module according to the first embodiment of the present invention.
4 is an exploded perspective view showing a configuration of an upper module according to a first embodiment of the present invention.
5 is a view showing a configuration of an upper fan housing and an upper fan according to the first embodiment of the present invention.
6 is a perspective view showing a configuration of an upper fan housing according to a first embodiment of the present invention.
7 is a bottom perspective view showing the configuration of the upper fan housing according to the first embodiment of the present invention.
FIG. 8 is a view showing a lower structure of a hub seating part according to the first embodiment of the present invention. FIG.
9 is a view showing a state where an upper motor is coupled to a hub seating part according to the first embodiment of the present invention.
10 is a cross-sectional view taken along the line X-X 'in FIG.
11 is an exploded perspective view showing a configuration of a lower module according to the first embodiment of the present invention.
FIG. 12 is a view showing a configuration of a lower fan housing and a lower fan according to the first embodiment of the present invention.
13 is a perspective view illustrating a configuration of a lower fan housing according to a first embodiment of the present invention.
FIG. 14 is a top perspective view showing a configuration of a lower fan housing according to a first embodiment of the present invention. FIG.
15 is a bottom perspective view showing the configuration of the upper orifice and the lower fan according to the first embodiment of the present invention.
16 is a perspective view showing the configuration of the upper orifice and the lower fan according to the first embodiment of the present invention.
17 is a bottom perspective view showing a state where a rotary motor is installed in an upper orifice according to the first embodiment of the present invention.
18 is a perspective view showing a configuration of a heater assembly according to the first embodiment of the present invention.
19 is an exploded perspective view showing a configuration of a heater assembly according to a first embodiment of the present invention.
20 is a cross-sectional view showing a configuration of a rotation motor and a power transmission device according to a first embodiment of the present invention.
FIG. 21 is a cross-sectional view illustrating the configuration of the lower fan and the second support according to the first embodiment of the present invention.
FIG. 22 is a sectional view showing the configuration of the air guide device and the upper fan housing according to the first embodiment of the present invention. FIG.
23 is a sectional view showing the configuration of the air guide device and the lower fan housing according to the first embodiment of the present invention.
FIGS. 24 and 25 are views showing how the air passing through the fan is discharged from the upper module according to the first embodiment of the present invention. FIG.
FIGS. 26 and 27 are views showing a state in which air having passed through a fan is discharged from a lower module according to the first embodiment of the present invention.
28 is a view showing a flow of air discharged from an upper module and a lower module according to the first embodiment of the present invention.
29 is a sectional view showing a fixed portion F and a rotated portion R of the flow generating device according to the first embodiment of the present invention.
30 is a view showing a state in which the flow generating device according to the first embodiment of the present invention discharges air toward the front side.
31 is a view showing a state in which the flow generating device according to the first embodiment of the present invention rotates leftward and discharges air toward the left side.
32 is a view showing a state in which the flow generating device according to the first embodiment of the present invention rotates to the right and discharges air toward the right side.
33 is a perspective view showing a configuration of a flow generation device according to a second embodiment of the present invention.
34 is a sectional view showing the inside of the body shown in Fig.
35 is a perspective view showing a configuration of a flow generation device according to a third embodiment of the present invention.
36 is a sectional view showing the inside of the body shown in Fig.
37 is a perspective view showing a configuration of a flow generation device according to a fourth embodiment of the present invention.
38 is a sectional view showing the inside of the body shown in Fig.

The present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. It is to be understood that the embodiments described herein are illustrated by way of example for purposes of clarity of understanding and that the present invention may be embodied with various modifications and alterations. Also, for ease of understanding of the invention, the appended drawings are not drawn to scale, but the dimensions of some of the components may be exaggerated.

(Embodiment 1)

FIG. 1 is a perspective view showing a configuration of a flow generating device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line I-I 'of FIG.

[main body]

1 and 2, the flow generating device 10 according to the embodiment of the present invention is provided with suction portions 21 and 23 for sucking air and discharge portions 25 and 27 for discharging air The body 20 is included.

[First and second suction portions]

The suction units 21 and 23 include a first suction unit 21 provided at an upper portion of the main body 20 and a second suction unit 23 provided at a lower portion of the main body 20. The air sucked through the first suction unit 21 flows downward and can be discharged to the center of the main body 21. [ The air sucked through the second suction unit 23 flows upward and can be discharged to the center of the main body 21. [ The " central portion " of the main body 21 may mean a central portion with respect to the vertical direction of the main body 21. [

[First and second discharging portions]

The discharge portions 25 and 27 may be disposed at a central portion of the main body 20. The discharge portions 25 and 27 are provided with a first discharge portion 25 through which the air sucked by the first suction portion 21 is discharged and a second discharge portion 25 through which the air sucked by the second suction portion 23 is discharged. And a discharge portion 27 is included. The first discharge portion 25 is located above the second discharge portion 27.

The first discharging portion 25 discharges air in a direction toward the second discharging portion 27 and the second discharging portion 27 discharges air in a direction toward the first discharging portion 25 Can be discharged. In other words, the first air flow discharged from the first discharge portion 25 and the second air flow discharged from the second discharge portion 27 can flow to be close to each other.

The air discharged from the first discharging portion 25 and the air discharged from the second discharging portion 27 can flow laterally or radially of the main body 20. The flow path through which the air discharged from the first discharge portion 25 flows is referred to as a "first discharge flow path 26" and the flow path through which the air discharged from the second discharge portion 27 flows is referred to as " Discharge duct 28 ". The first and second discharge passages 26 and 28 may be collectively called a " discharge passage ".

[Direction Definition]

Define the direction. 1 and 2, the longitudinal direction may be referred to as "axial direction" or "vertical direction", and the lateral direction perpendicular to the axial direction may be referred to as "radial direction".

[Leg]

The flow generating device 10 further includes a leg 30 provided below the main body 20. The legs 30 may extend downward from the body 20 and be coupled to the base 50. The base 50 serves to support the main body 20 and the legs 30 on the ground.

The leg 30 includes a leg body 31 coupled to the base 50 and extending upwardly. The leg 30 further includes leg extensions 33 and 35 extending upward from the leg body 31. A first leg extension 33 extending in one direction from the leg body 31 and a second leg extension 35 extending in the other direction from the leg body 31 are formed in the leg extensions 33, ). The first and second leg extensions (33, 35) may be connected to the lower portion of the body (20). For example, the leg body 30 and the first and second leg extensions 33 and 35 may have a "Y" shape.

However, the shape of the leg body 30 and the first and second leg extensions 33 and 35 may not be limited thereto.

For example, the leg extensions may be comprised of three or more. Further, the leg extension part may constitute a trivet-type base.

As another example, the leg extension portion may be omitted and only a straight leg body may be provided.

As another example, the leg body may be omitted, and a plurality of leg extensions may extend upwardly from the base.

≪ Configuration of upper module >

FIG. 3 is a cross-sectional view illustrating a configuration of an upper module and a lower module according to an embodiment of the present invention, and FIG. 4 is an exploded perspective view illustrating a configuration of an upper module according to an embodiment of the present invention.

Referring to FIGS. 3 and 4, the main body 20 according to the embodiment of the present invention includes an upper module 100 and a lower module 200 provided below the upper module 100. The upper module 100 and the lower module 200 may be vertically stacked.

[Top Fan and Top Fan Housing]

The upper module 100 includes an upper fan 130 for generating an air flow and an upper fan housing 150 having the upper fan 130 installed therein.

The upper fan 130 may include a centrifugal fan that sucks air in an axial direction and discharges the air in a radial direction. For example, the upper fan 130 may include a sirocco fan.

The upper fan housing 150 supports a lower side of the upper fan 130 and includes a guide structure for guiding the air flow generated by the rotation of the upper fan 130 to the first discharge portion 25 can do.

[First Air Treatment Apparatus]

The upper fan housing 150 may be provided with a first air treatment device that operates to harmonize or purify the air flowing through the upper module 100. For example, the first air treatment apparatus may include an ionizer 179 capable of removing airborne microorganisms from the air to be inhaled.

The ionizer 179 may be installed in the ionizer mounting portion 168 of the upper fan housing 150. The ionizer mounting portion 168 is provided in the guide wall 153. The ionizer 179 may be installed in the ionizer mounting portion 168 to be exposed to the first fan flow path 138a. Accordingly, the ionizer 179 acts on air passing through the upper fan 130 to perform the sterilizing function.

[Upper motor]

The upper module 100 further includes an upper motor 170 connected to the upper fan 130 to provide a driving force. An upper motor shaft 171 is provided on the upper motor 170. The upper motor shaft 171 may extend upward from the upper motor 170. The upper motor 170 is disposed below the upper fan housing 150 and the upper motor shaft 171 may be disposed to pass through the upper fan housing 150 and the upper fan 130. have.

[Locking section]

The upper module 100 further includes a locking portion 175 coupled to the upper motor shaft 171. The locking portion 175 is disposed on the hub 131a of the upper fan 130 and guides the upper motor 170 to be fixed to the upper fan 130. [

[Motor damper]

The upper module 100 further includes motor dampers 173a and 173b for damping the gap between the upper motor 170 and the upper fan housing 150. [ A plurality of motor dampers 173a and 173b may be provided.

An upper motor damper 173a of the plurality of motor dampers 173a and 173b is provided on the upper side of the upper fan housing 150 to support a portion of the upper motor shaft 171. [ The lower motor damper 173b of the plurality of motor dampers 173 is provided below the upper fan housing 150 to support another part of the upper motor shaft 171, And the bottom surface of the upper fan housing 150.

[Top cover]

The upper module 100 further includes an upper cover 120 disposed to surround the upper fan 130 and the upper fan housing 150. In detail, the upper cover 120 includes a cover inlet 121 through which the air sucked through the first suction unit 21 flows, forming an opened upper end. The upper cover 120 further includes a cover discharge unit 125 having an opened lower end. The air that has passed through the upper fan 130 can flow into the first discharge passage 26 through the cover discharge portion 125.

The size of the cover discharging part 125 may be larger than the size of the cover inflow part 121. Accordingly, the upper cover 120 may have a truncated conical shape with an upper end and a lower end opened. With this configuration, the air that has passed through the upper fan 130 can be easily discharged through the first discharge portion 25 while flowing to gradually expand in the circumferential direction.

<Top cover assembly>

The upper module 100 may further include a top cover assembly 102 covering the cover inlet 121 of the upper cover 120. The top cover assembly 102 may be coupled to the top cover 120 to prevent the top fan 130 and the top fan housing 150 of the top cover 120 from being exposed to the outside, Can be made beautiful.

Also, the first cover unit 102 may be formed with the first suction unit 21. The first suction portion 21 communicates with the cover inlet portion 121 of the upper cover 120 and the air sucked into the first suction portion 21 passes through the cover inlet portion 121 to the upper fan 130 Can be introduced.

The top cover assembly 102 may include a display cover 110, a top cover support 103, and a top cover 101. Hereinafter, each configuration will be described in more detail.

[Display cover]

The upper module 100 further includes a display cover 110 that is seated on the upper cover 120. The display cover 110 includes a cover grill 112 forming an air flow path. The air sucked through the first suction unit 21 can flow downward through the open space of the cover grill 112.

[First Prefilter]

The upper module 100 further includes a first pre-filter 105 supported by the display cover 110. The first pre-filter 105 may include a filter frame 106 and a filter member 107 coupled to the filter frame 106. The foreign matter in the air sucked through the first suction unit (21) can be filtered by the first pre-filter (105).

[Top cover and top cover supporting part]

The top cover assembly 102 further includes a top cover supporting portion 103 coupled to the display cover 110 and a top cover 101 disposed on the top cover supporting portion 103. The top cover supporting part 103 may protrude above the display cover 110. It can be understood that the space between the top cover supporting portion 103 and the display cover 110 forms the first suction portion 21. [

The central portion of the top cover supporting portion 103 is coupled to a central portion of the display cover 110 and the bottom surface of the top cover supporting portion 103 is extended radially outwardly from the central portion of the top cover supporting portion 103 . That is, the edge portion of the top cover supporting portion 103 may be spaced apart from the display cover 110 in the vertical direction.

The air sucked through the first suction portion 21 is guided to the cover grill 112 side of the display cover 110 along the bottom surface of the top cover supporting portion 103 Can be guided.

An upper part of the top cover 101 may be provided with an input unit for inputting commands by the user. A display PCB may be installed inside the top cover 101.

[Upper air guide]

The upper module 100 includes an upper air guide 180 provided below the upper fan housing 150 to guide the air having passed through the upper fan housing 150 to the first discharge passage 26, . The upper air guide 180 is configured to support the upper fan housing 150. The upper fan housing 150 includes a first guide engaging portion 151b (see FIG. 6) coupled to the upper air guide 180. The predetermined fastening member can be fastened to the first housing coupling portion 183 of the upper air guide 180 through the first guide coupling portion 151b.

The upper air guide 180 has a hollow plate shape. In detail, the upper air guide 180 includes a central portion 180a into which the upper motor 170 is inserted, a rim portion 180b that forms an outer peripheral surface of the upper air guide 180, And a guide extension 180c extending in the outer radial direction toward the rim 180b.

The guide extension 180c may extend downwardly or downwardly from the central portion 180a toward the rim 180b. According to this configuration, the air discharged downward from the upper fan housing 150 can easily flow in the outer radial direction.

[Detailed configuration of upper fan]

FIG. 5 is a view illustrating the configuration of an upper fan housing and an upper fan according to an embodiment of the present invention, FIG. 6 is a perspective view illustrating a configuration of an upper fan housing according to an embodiment of the present invention, and FIG. Is a bottom perspective view showing the structure of the upper fan housing according to an example.

5 to 7, an upper module 100 according to an embodiment of the present invention includes an upper fan 130 for generating an air flow and a lower fan 130 for supporting the upper fan 130, And an upper fan housing 150 surrounding at least a portion of the outer circumferential surface.

The upper fan 130 may have a generally cylindrical shape. In detail, the upper fan 130 includes a main plate 131 to which a plurality of blades 133 are coupled, and a hub 131a provided at a central portion of the main plate 131 and protruding upward. The upper motor shaft 171 may be coupled to the hub 131a. The plurality of blades 133 may be spaced apart from each other in the circumferential direction of the main plate 131.

The upper fan 130 further includes a side plate 135 provided on the upper side of the plurality of blades 133. The side plate portion 135 functions to fix the plurality of blades 133. The lower ends of the plurality of blades 133 may be coupled to the main plate 131 and the upper ends thereof may be coupled to the side plate portions 135.

[Housing Plate of Top Fan Housing]

The upper fan housing 150 is provided with a housing plate 151 for supporting the lower side of the upper fan 130 and a hub 131a of the upper fan 130 at the center of the housing plate 151 And a hub seating portion 152 for supporting the hub. The hub seating part 152 may protrude upward from the housing plate 151 corresponding to the shape of the hub 131a.

The housing plate 151 may cover the cover discharge portion 125 of the upper cover 120. The housing plate 151 can prevent the air that has flowed into the upper fan 130 through the cover inlet 121 from escaping to the outside of the upper cover 120 through the cover outlet 125. [ Thereby, the air flow discharged from the first discharge portion 25 can be further strengthened.

[Guide wall]

The upper fan housing 150 further includes a guide wall 153 protruding upward from the housing plate 151 and disposed to surround at least a part of the outer circumferential surface of the upper fan 130. The guide wall 153 may extend roundly in the circumferential direction on the upper surface of the housing plate 151. The guide wall 153 may extend in the circumferential direction and may be configured to be further away from the upper fan 130.

[First fan flow path]

A first fan flow path 138a through which the air having passed through the upper fan 130 flows is formed between the guide wall 153 and at least a part of the outer peripheral surface of the upper fan 130. [ The first fan flow path 138a may be understood as an air flow path that flows in the circumferential direction. That is, the air introduced in the axial direction of the upper fan 130 is discharged in the radial direction of the upper fan 130 and guided by the guide wall 153 to be guided along the first fan flow path 138a in the circumferential direction As shown in Fig.

The cross-sectional area of the first fan flow path 138a may be increased in the direction of rotation of the air. That is, the first fan flow path 138a may have a spiral shape. This can be called "spiral flow". By this flow, the flow resistance of air passing through the upper fan 130 is reduced, and the noise generated from the upper fan 130 can be reduced.

[First inclined portion]

The guide wall 153 includes a first inclined portion 154 extending downward from the upper end of the guide wall 153 toward the housing plate 151. At this time, one side of the guide wall 153 may be farther from the upper fan 130 than the other side located on the opposite side of the one side.

The direction of the downward slope may correspond to the air flow direction in the first fan flow path 138a.

The angle between the first inclined portion 154 and the housing plate 151 may be greater than 0 degrees and less than 60 degrees.

The first inclined portion 154 can have the effect of gradually increasing the cross sectional area of the air flowing in the direction of air flow.

The first inclined portion 154 may be formed in a shape corresponding to the inner surface of the upper cover 120. With this configuration, the first inclined portion 154 can extend in the circumferential direction without interfering with the upper cover 120.

[Second fan flow path]

The first fan flow path 138a is formed between a part of the outer circumferential surface of the upper fan 130 and an inner circumferential surface of the upper cover 120 in a state where the upper cover 120 is coupled to the upper fan housing 150. [ And a second fan flow path 138b positioned on the downstream side may be formed. The second fan flow path 138b may extend in a circumferential direction in which air flows from the first fan flow path 138a. Therefore, the air passing through the first fan flow path 138a can flow through the second fan flow path 138b.

Sectional area of the second fan flow path 138b may be larger than a flow cross-sectional area of the first fan flow path 138a. Accordingly, since the flow cross-sectional area increases as the air flows from the first fan passage 138a to the second fan passage 138b, the flow resistance of the air passing through the upper fan 130 is reduced, The noise generated from the fan 130 can be reduced.

[Second inclined portion]

The guide wall 153 includes a second inclined portion 156 extending downward from the upper end of the guide wall 153 toward the housing plate 151. The direction of the downward slope may correspond to the air flow direction in the second fan flow path 138b. The second inclined portion 156 may be referred to as a cut-off.

The angle between the second inclined portion 156 and the housing plate 151 may be greater than 0 degrees and less than 60 degrees.

The second inclined portion 154 has the effect of gradually increasing the cross-sectional area of the air with respect to the flow direction of the air.

The second inclined portion 156 is advantageous in that the flow of the air rotating in the circumferential direction collides with the other end of the guide wall 153 to disperse impact applied thereto and noise generated thereby can be reduced .

The first inclined portion 154 and the second inclined portion 156 form both side ends of the guide wall 153. The first inclined portion 154 is provided between the first fan flow path 138a and the second fan flow path 138b and the second inclined portion 156 is provided between the second fan flow path 138a and the second fan flow path 138b. 138b and the flow guide portion 160. The flow guide portions 160, In this manner, the first and second slopes 154 and 156 are provided in the boundary region where the air flow is switched, thereby improving the flow performance of the air.

[Flow guide portion]

The upper fan housing 150 further includes a flow guide part 160 for guiding the flow of air passing through the second fan flow path 138b. The flow guide part 160 protrudes upward from the upper surface of the housing plate 151.

The flow guide part 160 may be disposed on the outer surface of the guide wall 153. Due to the arrangement of the flow guide part 160, air flowing in the circumferential direction while passing through the first and second fan flow paths 138a and 138b can easily flow into the flow guide part 160 . The flow guide portion 160 includes a guide body 161 extending downward in a direction of air flow, that is, in a circumferential direction. That is, the guide body 161 includes a round surface or an inclined surface.

An air flow path is formed in the flow guide portion 160. In detail, an inlet portion 165 through which the air passed through the second fan flow path 138b flows is formed at the front end of the flow guide portion 160 with reference to the air flow direction. The inflow portion 165 can be understood as an open space portion. The guide body 161 may extend downward from the inlet 165 toward the upper surface of the housing plate 151.

[Cutting section]

In the housing plate 151, a cutout 151a is formed. The cutout 151a is understood as a portion formed at least a part of the housing plate 151 penetrating in the vertical direction. The inlet 165 may be located above the cutout 151a.

[First discharging portion]

The inflow portion 165 may define the first discharge portion 25 together with the cut-out portion 151a. That is, the first discharge portion 25 may be spaced apart from the outer circumferential surface of the upper fan 130 in the radial direction of the upper fan 130.

The first discharging portion 25 discharges air flowing on the upper side of the housing plate 151, that is, air flowing in the first and second fan flow paths 138a and 138b to the lower side of the housing plate 151 It can be understood as an outlet for discharging. Therefore, the air that has flowed through the second fan flow path 138b can flow to the lower side of the housing plate 151 through the first discharge portion 25. [

[First Discharge Guide Portion]

A first discharge guide portion 158 for radially guiding the air flow discharged through the first discharge portion 25 is provided on the bottom surface of the housing plate 151. The first discharge guide portion 158 protrudes downward from the bottom surface of the housing plate 151 and may extend radially outward from the center of the housing plate 151. The first discharge guide portion 158 may be disposed on the outlet side of the first discharge portion 25.

The housing plate 151 is formed with a plate depression 158a which is depressed downward. The protruding shape of the first discharge guide portion 158 can be realized by the plate depression 158a. For example, the first discharge guide portion 158 can be formed by a method of forming a depression 158a of the housing plate 151 by depressing a part of the housing plate 151 downward.

The air flow discharged through the first discharge portion 25 has a rotating property. When the first discharge guide portion 158 is contacted with the first discharge guide portion 158, the first discharge guide portion 158 turns in the radial direction Can be discharged. Of course, together with the first discharge guide portion 158, the upper air guide 180 can also guide the air flow in the radial direction.

According to this configuration, the air sucked downward toward the upper fan 130 through the first suction portion 21 is guided in the circumferential direction and discharged through the first discharge portion 25 with a rotational force. The discharged air can be guided by the first discharge guide portion 158 and the upper air guide 180 and can be easily discharged in the radial direction through the first discharge passage 26.

[Supporting Mechanism of Upper Motor]

FIG. 8 is a view showing a lower structure of a hub seating part according to a first embodiment of the present invention, FIG. 9 is a view showing a state where an upper motor is coupled to a hub seating part according to the first embodiment of the present invention, 10 is a cross-sectional view taken along the line X-X 'in FIG.

A support mechanism for the upper motor 170 is provided below the hub seating portion 152. An axial through hole 152a through which the upper motor shaft 171 passes may be formed in the support mechanism. The upper motor shaft 171 extends upward from the upper motor 170 and can be coupled to the upper fan 130 through the shaft through hole 152a.

[Support ribs]

The supporting mechanism further includes a supporting rib 152b for supporting the upper motor 170. [ The support rib 152b protrudes downward from the bottom surface of the hub seating portion 152 and may extend in a substantially circumferential direction to support the rim of the upper motor 170. [

[Reinforcing rib]

The supporting mechanism may include a reinforcing rib 152c extending radially from the supporting rib 152b. A plurality of the reinforcing ribs 152c may be provided, and the plurality of reinforcing ribs 152c may be spaced apart from each other and arranged in the circumferential direction.

[Fasteners]

The support mechanism further includes a fastening hole 152d into which the fastening member 178 is fastened. The fastening hole 152d is formed on the outer side of the shaft through-hole 152a, and may include a plurality of fastening holes 152d. The coupling member 178 functions to fasten the upper motor damper 173a and the lower motor damper 173b to the upper motor 170, and may include a screw, for example.

The upper motor damper 173a may be disposed on the hub seating portion 152 and the lower motor damper 173b may be disposed on the lower side of the hub seating portion 152. [ That is, the hub seating part 152 may be positioned between the upper motor damper 173a and the lower motor damper 173b.

The coupling member 178 extends downward through the upper motor damper 173a and passes through the lower motor damper 173b via the coupling hole 152d. The fastening member 178 extends downward through the fastening hole 152d and can be coupled to the upper motor 170. [

[Exhaust hole]

A discharge hole 152e for discharging heat generated in the upper motor 170 is formed in the hub seating part 152. [ A plurality of the discharge holes 152e may be provided and the plurality of discharge holes 152e may be spaced apart from each other in the circumferential direction of the hub seat 152. [ For example, the plurality of discharge holes 152e may be arranged in the circumferential direction on the outer side of the shaft through-hole 152a.

[Combined structure of upper motor and fastening member]

The fastening member 178 may be coupled to the motor fixing portion 170b of the upper motor 170. [ In detail, the upper motor 170 includes a motor rotation part 170a that rotates together with the upper motor shaft 171 and a motor fixing part 170b that is fixed to one side of the motor rotation part 170a. That is, the upper motor 170 includes an outer rotor type motor.

The motor fixing portion 170b includes a motor PCB 170c. The motor PCB 170c may be supported by the support ribs 152b. In detail, the motor PCB 170c is restrained inside the support rib 152b to prevent the upper motor 170 from moving in the left-right direction (radial direction).

[Assembly of upper motor]

A method of assembling the upper motor 170 will be briefly described.

The motor rotation part 170a of the upper motor 170 is held and the upper motor 170 is positioned below the hub seating part 152. [ At this time, the upper motor damper 173a and the lower motor damper 173b may be disposed on the upper surface and the lower surface of the hub seating portion 152, respectively.

The upper motor 170 is moved upward so that the upper motor shaft 171 is inserted into the shaft through hole 152a of the hub seating portion 152 and the motor PCB 170c is moved upward 152b.

The motor dampers 173a and 173b and the motor fixing portion 170b are fastened using the fastening member 178. [ The motor fixing portion 170b may be formed with a fastening member coupling portion to which the fastening member 178 can be coupled. According to such a structure and assembly method, the motor PCB 170c can be easily disposed in a fixed position, and the upper motor 170 can be stably supported in the upper fan housing 150.

It should be noted in advance that the description of the fastening structure of the upper motor 170 can be applied to the fastening structure of the lower motor 236 to be described later.

<Configuration of sub-module>

11 is an exploded perspective view showing a configuration of a lower module according to an embodiment of the present invention.

[Lower Fan and Lower Fan Housing]

3 and 11, the lower module 200 according to the embodiment of the present invention includes a lower fan 230 for generating an air flow and a lower fan housing 220 having the lower fan 230 installed therein. . The lower fan 230 may include a centrifugal fan that sucks air in an axial direction and discharges the air in a radial direction. For example, the lower fan 230 may include a sirocco fan.

The lower fan housing 220 is coupled to the upper portion of the lower fan 230 and includes a guide structure for guiding the air flow generated by the rotation of the lower fan 230 to the second discharge portion 27 can do.

[Lower motor]

The lower module 200 further includes a lower motor 236 connected to the lower fan 230 to provide a driving force. A lower motor shaft 236a is provided below the lower motor 236. The lower motor shaft 236a may extend downward from the lower motor 236. [ The lower motor 236 is disposed on the upper side of the lower fan housing 220 and the lower motor shaft 236a can be disposed to pass through the lower fan housing 220 and the lower fan 230. [ have. The lower fan 230 is provided with a shaft coupling portion 234 (see FIG. 16) to which the lower motor shaft 236a is coupled.

[Locking section]

The lower module 200 further includes a locking portion 239 coupled to the lower motor shaft 236a. The locking portion 239 is disposed below the hub 231a of the lower fan 230 and guides the lower motor 236 to be fixed to the lower fan 230. [

[Motor damper]

The lower module 200 further includes a motor damper 237 for damping the gap between the lower motor 236 and the lower fan housing 220. A plurality of motor dampers 237 may be provided.

One of the plurality of motor dampers 237 is provided on the upper side of the lower fan housing 220 to support a portion of the lower motor shaft 236a and is connected to one surface of the lower motor 236, (Not shown). The other one of the plurality of motor dampers 237 may be provided below the lower fan housing 220 to support another part of the lower motor shaft 236a.

[Lower cover]

The lower module 200 further includes a lower cover 290 disposed to surround the lower fan 230 and the lower fan housing 220. In detail, the lower cover 290 includes a cover inflow portion 291a through which the air sucked through the second suction portion 23 flows, forming an opened lower end portion. The lower cover 290 further includes a cover discharge portion 291b having an opened upper end. The air having passed through the lower fan 230 can flow into the second discharge passage 28 through the cover discharge portion 291b.

The size of the cover discharge portion 291b may be larger than that of the cover inflow portion 291a. Accordingly, the lower cover 290 may have a truncated conical shape with an upper end and a lower end opened. With this configuration, the air that has passed through the lower fan 290 can be easily discharged through the second discharge portion 27 while gradually flowing in the circumferential direction.

[Top cover and bottom cover]

The cover inlet 121 and the cover outlet 125 of the upper cover 120 may be referred to as an upper cover inlet 121 and an upper cover outlet 125 respectively, The portion 291a and the cover discharge portion 291b may be referred to as a lower cover inflow portion 291a and a lower cover discharge portion 291b, respectively.

[Upper fan housing and lower fan housing]

The housing plate 151 and the guide wall 153 of the upper fan housing 150 may be referred to as a first housing plate 151 and a first guide wall 153, respectively, The second guide plate 221 and the guide wall 223 may be referred to as a second housing plate 221 and a second guide wall 223, respectively.

[Protective member]

The lower module 200 further includes a protection member 294 disposed below the lower cover 290 to block heat generated from the heater assembly 260. The protective member 294 may have a substantially disc shape. The protection member 294 may be made of a steel material that is not burnt by heat. The protection member 294 prevents the heat from being transmitted to the second pre-filter 295, thereby preventing the second pre-filter 295 from being damaged.

[Second Prefilter]

The lower module 200 further includes a second pre-filter 295 provided below the protection member 294. The second pre-filter 295 may include a filter frame 296 and a filter member 297 coupled to the filter frame 296. The foreign matter in the air sucked through the second suction part (23) can be filtered by the second pre-filter (295). It can be understood that the lower space portion of the second pre-filter 295 forms the second suction portion 23.

[Lower air guide]

The upper module 200 further includes a lower air guide 210 provided at a lower side of the lower fan housing 220 to guide the air that has passed through the lower fan housing 220. The lower air guide 210 has a hollow plate shape. The lower air guide 210 includes a central portion 210a into which the lower motor 236 is inserted, a rim portion 210b that forms an outer peripheral surface of the lower air guide 210, And a guide extension 210c extending in the outer radial direction toward the rim 210b.

The guide extension 210c may extend upwardly or upwardly from the central portion 210a toward the rim 210b. According to such a configuration, the air discharged upward from the lower fan housing 220 through the second discharge portion 27 can be radially guided to flow into the second discharge passage 28.

[PCB device]

A plurality of parts can be provided on the upper surface of the guide extension part 210c. The plurality of components includes a PCB device having a main PCB 215 for controlling the flow generating device 10. [ The PCB device further includes a regulator 216 for stably supplying electric power to the flow generating device 10. [ By the regulator 216, even if the voltage or frequency of the input power source changes, a constant voltage power can be supplied to the flow generating device 10.

[Communication module]

The plurality of components further include a communication module. The flow generation device 10 can communicate with an external server through the communication module. For example, the communication module may include a Wi-Fi module.

[LED device]

The plurality of components further includes an LED device. The LED device may constitute a display unit of the flow generating device 10. [ The LED device is installed between the upper air guide 180 and the lower air guide 220 and can display a predetermined color. The hue generated in the LED device may indicate operation information of the flow generating device 10. [

The LED device includes an LED PCB 218 on which LEDs are mounted and an LED cover 219 on the outside of the LED PCB 218 in a radial direction for diffusing light emitted from the LEDs. The LED cover 219 may be referred to as a " diffusion plate ".

[Combined structure of upper air guide and lower air guide]

The upper air guide 180 and the lower air guide 210 may be coupled to each other. The upper air guide 180 and the lower air guide 210 may be collectively referred to as an " air guide apparatus ". The air guiding device divides the upper module 100 and the lower module 200. In other words, the air guide device can separate the upper module 100 and the lower module 200 from each other. The air guiding device can support the upper module 100 and the lower module 200.

In detail, the lower air guide 210 may be coupled to the lower side of the upper air guide 180. By the engagement of the upper air guide 180 and the lower air guide 210, a motor installation space is formed in the air guide devices 180 and 210. The upper motor 170 and the lower motor 236 can be accommodated in the motor installation space. By such a configuration, space utilization of the apparatus can be improved.

[LATCH ASSEMBLY]

The lower cover 290 may be detachably attached to the flow generating device 10. In detail, the lower fan housing 220 may be provided with a latch engaging portion 225b (see FIG. 11). Latch assemblies 238a and 238b, which are selectively engaged with the lower cover 290, are coupled to the latch coupling part 225b. The latch assemblies 238a and 238b include a first latch 238a inserted into the lower cover 290 and a second latch 238b movably coupled to the latch engaging portion.

The latch engaging portion of the lower fan housing 220 may be provided at a position corresponding to the latch engaging portion 157a of the upper fan housing 150. The description of the first and second latches 238a and 238b is based on the description of the first and second latches 177a and 177b of the upper module 100.

[Upper orifice]

The lower module 200 includes an upper orifice 240 provided below the lower fan housing 220 and provided with a driving device for rotating the upper module 100 and a part of the lower module 200, .

The upper orifice 240 may be provided on the inner side of the lower cover 290 and on the lower side of the lower fan housing 220.

The upper orifice 240 has an open central portion 240a and may have an annular shape. The central portion 240a may form a flow path of the air sucked through the second suction portion 23. [

[Driving device]

The driving device may rotate the first discharging part 25 and the second discharging part 27 together to adjust the airflow direction of the airflow discharged from the flow generating device.

The driving device includes a rotating motor (270) for generating a driving force. For example, the rotary motor 270 may include a step motor that is easily adjustable in the angle of rotation.

The driving device further includes a power transmitting device connected to the rotating motor (270). The power transmission apparatus may include a pinion gear 272 coupled to the rotary motor 270 and a rack gear 276 coupled to the pinion gear 272. The rack gear 276 may have a rounded shape corresponding to the rotational curvatures of the upper module 100 and the lower module 200.

[Lower orifice]

The lower module 200 further includes a lower orifice 280 provided below the upper orifice 240. The lower orifice 280 may be provided on the inner side of the lower cover 290 and on the lower side of the upper orifice 240.

The lower orifice 280 is coupled to the leg 30. In particular, both sides of the lower orifice 280 may be coupled to the first leg extension 33 and the second leg extension 35. Accordingly, the lower orifice 280 can be understood as a fixed configuration of the lower module 200.

[Racks]

The rack gear 276 may be coupled to the lower orifice 280. The lower orifice 280 has an open central portion 280a and may have an annular shape. The central portion 280a may form a flow path of the air sucked through the second suction portion 23. [ Air that has passed through the central portion 280a of the lower orifice 280 can pass through the central portion 240a of the upper orifice 240. [

[Second Air Treatment Apparatus]

The lower module 200 may further include a second air processing unit that operates to harmonize or purify the air flowing through the lower module 200. The second air processing apparatus may perform a function different from that of the first air processing apparatus. For example, the second air treatment apparatus includes a heater assembly 260 supported by the lower orifice 280 and generating a predetermined heat.

In detail, the heater assembly 260 includes a heater 261. The heater 261 is disposed in the open central portion 280a of the lower orifice 240 and can heat the air sucked through the second suction portion 23. For example, the heater 261 may include a PTC heater.

The heater assembly 260 further includes a heater bracket 263 for supporting both sides of the heater 261. The heater bracket 263 may be coupled to the lower orifice 280.

[roller]

The lower orifice 280 is provided with a roller 278 for guiding the rotation of the upper module 100 and the lower module 200. The rollers 278 are coupled to the rim of the lower orifice 280, and a plurality of rollers 278 may be disposed in the circumferential direction. The roller 278 may contact the bottom surface of the upper orifice 240 to guide rotation or rotation of the upper orifice 240.

[supporter]

The lower module 200 further includes supporters 265 and 267 disposed on the upper side of the heater assembly 260. The supporters 265 and 267 include a first supporter 265 coupled to the upper side of the heater 261 and a second supporter 267 coupled to the upper side of the first supporter 265.

The first supporter 265 separates the heater assembly 260 from the lower fan 230 to prevent heat generated from the heater assembly 260 from adversely affecting other components . The second supporter 267 forms a rotation center of the rotating upper module 100 and the lower module 200. The second supporter 267 is provided with a bearing 275 to guide the movement of the rotating component.

[Lower Fan and Lower Fan Housing]

FIG. 12 is a perspective view of a lower fan housing and a lower fan according to an embodiment of the present invention. FIG. 13 is a perspective view illustrating a configuration of a lower fan housing according to an embodiment of the present invention. FIG. 2 is a top perspective view showing a configuration of a lower fan housing according to an example. FIG.

Referring to FIG. 3 and FIG. 12 to FIG. 14, a lower module 200 according to an embodiment of the present invention includes a lower fan 230 for generating an air flow, And a lower fan housing 220 surrounding at least a portion of the outer circumferential surface of the lower fan 230.

[Detailed configuration of lower fan]

The lower fan 230 may have a generally cylindrical shape. In detail, the lower fan 230 includes a main plate 231 to which a plurality of blades 233 are coupled, and a hub 231a which is provided at a central portion of the main plate 231 and protrudes upward. The lower motor shaft 236a may be coupled to the hub 231a. The plurality of blades 233 may be spaced apart from each other in the circumferential direction of the main plate 231.

The lower fan 230 further includes a side plate portion 235 provided below the plurality of blades 233. The side plate portion 235 functions to fix the plurality of blades 233. An upper end of the plurality of blades 233 may be coupled to the main plate 231 and a lower end thereof may be coupled to the side plate 235.

[Position relationship between upper and lower fans]

The rotation axis of the upper fan 130 and the rotation axis of the lower fan 230 may be positioned on a straight line perpendicular to each other. More specifically, the upper motor shaft 171 of the upper motor 170 and the lower motor shaft 236a of the lower motor 236 may be positioned in a straight line.

This makes it easier to control the combined air flow by rotation of the upper fan 130 and the lower fan 230, respectively.

[Size difference between upper and lower fans]

The vertical height Ho of the upper cover 120 and the vertical height Ho 'of the lower cover 290 may be substantially the same. With such a configuration, the appearance of the flow generating device 10 can be made compact and the design can be made beautiful.

On the other hand, the vertical height H2 of the lower fan 230 may be smaller than the vertical height H1 of the upper fan 130. In order to compensate for the height of the heater assembly 260 provided only in the lower module 200, the height of the lower fan 230 is relatively small. Therefore, the maximum capacity of the upper fan 130 may be greater than the maximum capacity of the lower fan 230.

For example, when the upper fan 130 and the lower fan 230 are driven at the same rotational speed, the discharge amount of the air discharged from the upper module 100 is smaller than the discharge amount of the air discharged from the lower module 200 Can be many. Therefore, the number of revolutions of the lower fan 230 may be adjusted to be greater than the number of revolutions of the upper fan 130 in order to control the amount of air discharged from the upper module 100 and the lower module 200 to be equal to each other . As a result, the combined air discharged from the upper module 100 and the lower module 200 can be easily discharged in the radial direction without being biased upward or downward.

[Detailed configuration of lower fan housing]

The lower fan housing 220 is provided with a housing plate 221 for supporting the upper side of the lower fan 230 and a lower plate 230 provided at the center of the housing plate 221 and coupled to the hub 231a of the lower fan 230 And a hub seating portion 222 for supporting the hub. The hub seating part 222 may protrude downward from the housing plate 221 in correspondence with the shape of the hub 231a. An axial through hole 222a through which the lower motor shaft 236a passes may be formed in the hub seat 222a.

The housing plate 221 can cover the cover discharge portion 291b of the lower cover 290. [ The housing plate 221 can prevent the air that has flowed into the lower fan 230 through the cover inlet 291a from escaping to the outside of the lower cover 290 through the cover outlet 291b. Thereby, the air flow discharged from the second discharge portion 27 can be further strengthened.

The lower fan housing 220 further includes a guide wall 223 protruding downward from the housing plate 221 and disposed to surround at least a part of the outer circumferential surface of the lower fan 230. The guide wall 223 may extend roundly in the circumferential direction on the upper surface of the housing plate 151. The guide wall 223 may extend in the circumferential direction and be configured to be further away from the lower pan 230. The height H2 of the lower fan 230 is smaller than the height H1 of the upper fan 130 so that the height of the guide wall 223 of the lower fan housing 220 is greater than the height H1 of the upper fan housing 150. [ The height of the guide wall 153 may be smaller than the height of the guide wall 153 of FIG.

[First fan flow path]

A first fan flow path 234a through which the air passing through the lower fan 230 flows is formed between the guide wall 223 and at least a part of the outer circumferential surface of the lower fan 230. The first fan flow path 234a can be understood as an air flow path that flows in a circumferential direction. That is, the air introduced in the axial direction of the lower fan 230 is discharged in the radial direction of the lower fan 230 and is guided by the guide wall 223 and is guided along the first fan flow path 234a in the circumferential direction As shown in Fig.

The cross-sectional area of the first fan flow path 234a may be increased in the direction of rotation of the air. That is, the first fan flow path 234a may have a spiral shape. This can be called "spiral flow". By this flow, the flow resistance of air passing through the lower fan 230 is reduced, and the noise generated from the upper fan 230 can be reduced.

[First inclined portion]

The guide wall 223 includes a first inclined portion 224 extending upward from the lower end of the guide wall 223 toward the housing plate 221. At this time, one side of the guide wall 223 may be farther from the lower fan 230 than the other side located on the opposite side of the one side.

The upward sloping direction may correspond to the air flow direction in the first fan flow path 234a.

The angle between the first inclined portion 224 and the housing plate 221 may be greater than 0 degrees and less than 60 degrees.

The first inclined portion 224 has the effect of gradually increasing the cross-sectional area of air flowing on the basis of the flow direction of air.

The first inclined portion 224 may be formed in a shape corresponding to the inner surface of the lower cover 290. With this configuration, the first inclined portion 224 can extend in the circumferential direction without interfering with the lower cover 290.

[Operation of Hook and Hook Coupling Portion]

The housing plate 221 includes a hook 225a which is engaged with the lower cover 290. The hook 225a may have a shape that protrudes from the upper surface of the housing plate 151 and is bent in one direction, for example, "A". The lower cover 290 is provided with a hook coupling portion 292b (see FIG. 8) having a shape corresponding to the hook 225a. The description of the hooks 225a and the hook engaging portions 292b explains the description of the hooks 157b and the hook engaging portions 127 of the upper module 100. [

[Second fan flow path]

The first fan flow path 234a is formed between a part of the outer circumferential surface of the lower fan 230 and an inner circumferential surface of the lower cover 290 in a state where the lower cover 290 is coupled to the lower fan housing 220. [ And a second fan flow path 234b positioned on the downstream side may be formed. The second fan flow path 234b may extend in a circumferential direction in which air flows from the first fan flow path 234a. Accordingly, the air passing through the first fan flow path 234a can flow through the second fan flow path 234b.

Sectional area of the second fan flow path 234b may be larger than a flow cross-sectional area of the first fan flow path 234a. Accordingly, since the flow cross-sectional area of the air flows from the first fan flow passage 234a to the second fan flow passage 234b, the flow resistance of the air passing through the upper fan 230 is reduced, The noise generated from the fan 230 can be reduced.

[Second inclined portion]

The guide wall 223 includes a second inclined portion 226 extending upward from the lower end of the guide wall 223 toward the housing plate 221. The upward sloping direction may correspond to an air flow direction in the second fan flow path 234b. The second inclined portion 226 may be referred to as a cut-off.

The angle between the second inclined portion 226 and the housing plate 221 may be greater than 0 degrees and less than 60 degrees.

With the configuration of the second inclined portion 226, it is possible to have an effect that the cross sectional area of the air gradually increases on the basis of the direction of air flow.

Also, the second inclined portion 226 has an advantage that the flow of the air rotating in the circumferential direction can disperse the impact applied to the other end of the guide wall 223, thereby reducing the noise generated thereby .

The first inclined portion 224 and the second inclined portion 226 form both side ends of the guide wall 223. The first inclined portion 224 is provided between the first fan flow path 234a and the second fan flow path 234b and the second inclined portion 226 is provided between the second fan flow path 234a and the second fan flow path 234b. 234b and the flow guide portion 227, as shown in FIG. In this manner, the first and second slopes 224 and 226 are provided in the boundary region where the air flow is switched, thereby improving the flow performance of the air.

[Flow guide portion]

The lower fan housing 220 further includes a flow guide part 227 for guiding air passing through the second fan flow path 234b. The flow guide part 227 protrudes downward from the bottom surface of the housing plate 221. The flow guide portion 160 provided in the upper module 100 is referred to as a " first flow guide portion ", and the flow guide portion 227 provided in the lower module 200 is referred to as a & 2 flow guide ".

The flow guide portion 227 may be disposed on the outer surface of the guide wall 223. Due to the arrangement of the flow guide portions 227, air flowing in the circumferential direction while passing through the first and second fan flow paths 234a and 234b can easily flow into the flow guide portion 227 . The flow guide portion 227 includes a guide body 228 extending upward in a direction of air flow, that is, in the circumferential direction. That is, the guide body 228 includes a round surface or an inclined surface.

In the flow guide portion 227, an air flow path is formed. In detail, an inlet portion 228a through which the air passed through the second fan flow passage 234b flows is formed at the front end of the flow guide portion 227 with respect to the air flow direction. The inlet 228a can be understood as an open space. The guide body 228 may extend upward from the inlet 228a toward the upper surface of the housing plate 221. [

[Cutting section]

The housing plate 221 is provided with a cutout 221a. The cut-out portion 221a is understood as a portion formed by penetrating at least a part of the housing plate 221 in a vertical direction. The inlet 228a may be located below the cutout 221a.

The inlet 228a may define the second outlet 27 together with the cutout 221a. The second discharging portion 27 discharges the air flowing below the housing plate 221, that is, the air flowing through the first and second fan flow paths 234a and 234b to the upper side of the housing plate 221 It can be understood as an outlet for discharging. Accordingly, the air that has flowed through the second fan flow path 234b can flow to the upper side of the housing plate 221 through the second discharge portion 27. [

[Second Discharge Guide Portion]

The upper surface of the housing plate 221 is provided with a second discharge guide portion 229 for radially guiding the air flow discharged through the second discharge portion 27. The second discharge guide portion 229 protrudes upward from the upper surface of the housing plate 221 and may extend in an outer radial direction from a central portion of the housing plate 221. The second discharge guide portion 229 may be disposed on the outlet side of the second discharge portion 27 and may be located below the first discharge guide portion 158.

The housing plate 221 is formed with a plate depression 229a which is depressed upward. The protruding shape of the second discharge guide portion 229 can be realized by the plate depression 229a. For example, the second discharge guide portion 229 may be formed by recessing a part of the housing plate 221 upward to form the plate depression 229a.

[Operation of Second Discharge Guide Portion]

The air flow discharged through the second discharge portion 27 has a property of rotating. When the second discharge guide portion 229 is encountered, the second discharge guide portion 229 changes direction in the radial direction Can be discharged. Of course, along with the second discharge guide portion 229, the lower air guide 210 can also guide the air flow in the radial direction.

According to this configuration, the air sucked upward toward the lower fan 230 through the second suction portion 23 is guided in the circumferential direction and discharged through the second discharge portion 27 with a rotational force, 2 discharge guide portion 229 and the lower air guide 210 and can be easily discharged in the radial direction through the second discharge passage 28.

[Guide seating part]

The upper surface of the housing plate 221 is provided with a guide seat 221c on which the lower air guide 210 is seated. The lower air guide 210 can be stably supported on the guide seat 221c. The guide seat 221c is provided with a second guide engaging portion 221d to which the lower air guide 210 is coupled. The predetermined fastening member can be fastened to the lower air guide 210 through the second guide engaging portion 221d.

[Upper orifice and lower fan]

FIG. 15 is a bottom perspective view showing the configuration of the upper orifice and the lower fan according to the embodiment of the present invention, FIG. 16 is a perspective view showing the configuration of the upper orifice and the lower fan according to the embodiment of the present invention, FIG. 5 is a bottom perspective view showing a state where a rotary motor is installed in the upper orifice according to the embodiment of FIG.

[Upper orifice body]

Referring to FIG. 3 and FIGS. 15 through 17, the upper orifice 240 according to the embodiment of the present invention is coupled to the lower side of the lower fan housing 220. Specifically, the upper orifice 240 includes an upper orifice body 241 having an open central portion 241a. The opened center portion 241a may form an air flow path for transmitting air to the lower fan 230. [ By the opened central portion 241a, the upper orifice body 241 may have a substantially annular shape.

[Fan Guide]

The upper orifice 240 includes a fan guide 242 into which the side plate portion 235 of the lower fan 230 is inserted. The fan guide 242 may protrude downward from the bottom surface of the upper orifice body 241. The fan guide 242 may be disposed so as to surround the opened center portion 241a.

[Motor Support]

The upper orifice 240 further includes a motor support portion 244 for supporting the rotation motor 270. The motor support portion 244 protrudes downward from the upper orifice main body 241 and may be arranged to surround the outer circumferential surface of the rotation motor 270. [ The rotation motor 270 is supported on the bottom surface of the upper orifice body 241 and can be inserted into the motor support portion 244.

[Driving device]

The lower module 200 includes a driving unit that generates driving force to guide rotation of the upper module 100 and the lower module 200. The driving device includes a rotation motor 270 and gears 272 and 276. [ The gears 272 and 276 may include a pinion gear 272 and a rack gear 276.

A pinion gear 272 can be coupled to the rotation motor 270. The pinion gear 272 is disposed below the rotary motor 270 and may be coupled to the motor shaft 270a of the rotary motor 270. [ When the rotation motor 270 is driven, the pinion gear 272 can rotate.

The pinion gear 272 can be interlocked with the rack gear 276. The rack gear 276 is fixed to the lower orifice 280. Since the rack gear 276 has a fixed configuration, when the pinion gear 272 rotates, the rotation motor 270 and the pinion gear 272 rotate about the center of the opened central portion 241a of the upper orifice 240 I.e., idle. The upper orifice 240 supporting the rotary motor 270 is rotated.

[Second Supporting Member]

The upper orifice 240 further includes a second supporter coupling portion 248 coupled to the second supporter 267. The second supporter engaging portion 248 may be provided on an inner circumferential surface of the central portion 241a of the upper orifice 240. The second supporter 267 includes a second coupling portion 267d coupled to the second supporter coupling portion 248. [ The predetermined fastening member may be fastened to the second fastening portion 267d through the second supporter engaging portion 248. [

[Cover coupling portion]

The upper orifice 240 further includes a cover engagement portion 249 coupled to the lower cover 290. A plurality of the cover engaging portions 249 may be provided at the rim of the upper orifice body 241. The plurality of cover engaging portions 249 may be spaced apart in the circumferential direction.

[Orifice coupling portion]

The lower cover 290 is provided with an orifice engaging portion 292a which is engaged with the cover engaging portion 249. The orifice coupling portion 292a may be disposed on the inner circumferential surface of the lower cover 290 and may include a plurality of orifice coupling portions 292a corresponding to the number of the cover coupling portions 249. [ The predetermined fastening member can be fastened to the cover engaging portion 249 through the orifice engaging portion 292a.

[Wallpaper section]

The upper orifice 240 further includes a wall bracket 246 for supporting the guide wall 223 of the lower fan housing 220. The wallpaper support portion 246 may protrude upward from the upper surface of the upper orifice body 241. The wallpaper support portion 246 can support the outer peripheral surface of the guide wall 223.

[Lower orifice and heater assembly]

19 is an exploded perspective view showing a configuration of a heater assembly according to an embodiment of the present invention, FIG. 20 is a perspective view illustrating a rotation according to an embodiment of the present invention, FIG. FIG. 21 is a cross-sectional view illustrating a configuration of a lower fan and a second support according to an embodiment of the present invention. FIG.

[Lower orifice body]

18 to 20, a heater assembly 260 according to an embodiment of the present invention may be mounted on a lower orifice 280. [ The lower orifice 280 includes a lower orifice body 281 having an open central portion 281a. The opened central portion 281a may form an air flow path for transmitting the air sucked through the second suction portion 23 to the open central portion 241a of the upper orifice 240. [ The lower orifice body 281 may have a substantially annular shape by the opened central portion 281a.

[Rack joint part]

The lower orifice 280 further includes a rack coupling portion 285 coupled to the rack gear 276. The rack coupling portion 285 protrudes upward from the upper surface of the lower orifice main body 281 and has an insertion groove into which the rack coupling member 286 can be inserted. The rack coupling member 286 may be coupled to the rack coupling portion 285 through the rack gear 276.

[Bracket Support]

The heater assembly 260 includes a heater 261 and a heater bracket 263 for supporting both sides of the heater 261. A heater 261 may be inserted into the opened central portion 281a.

The lower orifice body 281 further includes a bracket supporting portion 282 on which the heater bracket 263 is mounted. The bracket support 282 may be provided on both sides of the lower orifice body 281. The heater bracket 263 may be fastened to the bracket support portion 282 by a predetermined fastening member.

[Roller support part]

A roller support portion 280 for supporting the roller 278 is provided on the lower orifice main body 281. During the rotation of the upper orifice 240, the roller 278 may contact the upper orifice 240 to perform a rolling action.

[First supporter coupling portion]

The lower orifice body 281 is provided with a first supporter engaging portion 283 coupled to the first supporter 265. The first supporter engaging portion 283 may be provided at the edge of the center portion 241a. The first supporter 265 includes a first coupling part 265e coupled to the first supporter coupling part 283. The predetermined fastening member may be fastened to the first fastening portion 265e through the first supporter engaging portion 283. [

[First supporter]

The first supporter 265 is disposed above the lower orifice 280. The first supporter 265 may be disposed above the heater assembly 260. The first supporter 265 may be made of a metal material, for example, aluminum.

The first supporter 265 supports a rotating component of the lower module 200. The first supporter 265 protects the second supporter 267 from being brought into direct contact with the heater assembly 260 at the upper part of the lower module 200. That is, the first and second supporters 265 and 267 guide the lower fan 230 and the lower fan housing 220 to be separated from the heater assembly 260.

The first supporter 265 includes a first supporter main body 265a having a substantially ring shape and a first supporter frame 265c extending from one point of the inner peripheral surface of the first supporter main body 265a to another point do. A plurality of the first supporter frames 265c may be provided, and the plurality of first supporter frames 265c may be disposed to intersect with each other.

A supporter central portion 265b is provided at the intersection of the plurality of first supporter frames 265c. The rotation center portion 267b of the second supporter 267 may be inserted into the supporter center portion 265b. The bearing 275 may be provided at the supporter center portion 265b. In short, the bearing 275 is provided on the outer side of the rotation center 267b so that the rotation can be easily guided when the rotation center 267b rotates within the supporter center 265b.

[Second supporter]

The lower orifice 280 and the heater assembly 260 and the first supporter 265 have a fixed configuration and a portion provided on the upper side of the second supporter 267 and the second supporter 267, The lower fan 230, the lower fan housing 220, the upper orifice 240, and the like can rotate (rotate).

The second supporter 267 includes a second supporter main body 267a having an approximately ring shape and a second supporter main body 267b extending from one point of the inner circumferential surface of the second supporter main body 267a to the center of the second supporter main body 267a 2 supporter frame 267c. A plurality of the second supporter frames 267c may be provided and the plurality of second supporter frames 267c may meet at the center of the second supporter main body 267a.

At the center of the second supporter main body 267a, there is provided a rotation center 267b which forms the rotation center of the second supporter 267. [ The rotation center portion 267b forms a rotation center axis of the second supporter 267. [ The rotation center portion 267b protrudes downward from the central portion of the second supporter main body 267a and is rotatably inserted into the central portion 265b of the first supporter 265. [

[Arrangement structure of the second supporter and the locking portion]

On the upper surface of the plurality of second supporter frames 267c, a step 267e which is downwardly recessed is formed. The stepped portion 267e has a shape corresponding to the stepped shape of the locking portion 239. The stepped portion 267e may be positioned below the locking portion 239.

21, a lower motor 236 is disposed above the lower fan 230 and a lower motor shaft 236a is disposed below the lower surface of the lower motor 236 And is coupled to the lower fan 230. The lower fan 230 is provided with an axial coupling portion 234 through which the lower motor shaft 236a passes. The shaft coupling portion 234 may protrude upward from the hub 231a of the lower fan 230.

The lower motor shaft 236a protrudes to the lower side of the lower fan 230 through the shaft coupling part 234 and is coupled to the locking part 239. [ The bottom surface of the locking portion 239 may have a protruding or stepped shape corresponding to the shape of the hub 231a of the lower fan 230.

The stepped portion 267e of the second supporter 267 may be positioned below the locking portion 239. Therefore, interference between the locking portion 239 and the second supporter 267 can be prevented. The bottom surface of the locking portion 239 and the step 267e of the second supporter 267 may be spaced apart by a set distance S1. With this configuration, it is possible to prevent interference between the lower fan 230 or the locking portion 239 and the second supporter 267 even if vibration occurs during the operation of the lower fan 230 .

[Combined structure of upper air guide and lower air guide]

FIG. 22 is a sectional view showing the configuration of the air guide device and the upper fan housing according to the embodiment of the present invention, and FIG. 23 is a sectional view showing the configuration of the air guide device and the lower fan housing according to the embodiment of the present invention.

22 and 23, the air guiding apparatuses 180 and 210 according to the embodiment of the present invention can be coupled to each other. In detail, the upper air guide 180 is provided with a first guide coupling part 188, and the lower air guide 210 is provided with a second guide coupling part 218. The first guide coupling part 188 is aligned on the upper side of the second guide coupling part 218 and can be coupled by a predetermined coupling member. For example, the coupling member may be coupled to the second guide coupling portion 218 through the first guide coupling portion 188.

[Top Fan Housing Support Structure of Upper Air Guide]

The central portion 180a of the upper air guide 180 is provided with a first depressed portion 187 which is downwardly recessed. The guide recess 152a of the upper fan housing 150 may be inserted into the first depression 187. [ The guide supporting portion 152a may be provided on the edge of the hub seating portion 152 of the upper fan housing 150 and may be depressed downward. The upper fan housing 150 can be stably supported on the upper air guide 180 due to the configuration of the first depression 187 and the guide support 152a. The first guide coupling part 151b of the upper fan housing 150 may be fastened to the first housing coupling part 183 of the upper air guide 180 as described above.

[Lower Fan Housing Support Structure of Lower Air Guide]

A housing support part 217 supported by the guide seating part 221c of the lower fan housing 220 is provided at a central part 210a of the lower air guide 210. [ The guide extension 210c may extend radially outward from the housing support 217. [ The lower air guide 210 can be stably supported on the upper side of the lower fan housing 220 by the structure of the housing support part 217 and the guide seat part 221c.

The lower air guide 210 includes a second housing coupling part 217a coupled to the second guide coupling part 221d of the lower fan housing 220. [ The predetermined fastening member can be fastened to the second housing fastening part 217a through the second guide engaging part 221d.

[Air flow in the upper module]

FIGS. 24 and 25 are views showing how the air passing through the fan is discharged from the upper module according to the first embodiment of the present invention. FIG.

Referring to FIGS. 2, 24 and 25, when the upper fan 130 according to the first embodiment of the present invention is driven, air is sucked through the first suction portion 21 of the upper module 100, The first air flow Af1 may be generated through the upper fan 130 and discharged from the first discharge portion 25. [

In detail, according to the rotation of the upper fan 130, the air is sucked down through the first suction part 21 provided at the upper part of the upper module 100. The air sucked through the first suction unit 21 is sucked in the axial direction of the upper fan 130 through the first pre-filter 105.

The air flowing in the axial direction of the upper fan 130 is discharged in the radial direction of the upper fan 130 and is guided by the guide wall 153 of the upper fan housing 150, And flows in the circumferential direction. The air that has passed through the first fan flow path 138a can flow in the circumferential direction through the second fan flow path 138b positioned on the downstream side of the first fan flow path 138a.

Since the flow cross sectional area of the second fan flow path 138b is larger than the flow cross sectional area of the first fan flow path 138a, the flow resistance of air passing through the upper fan 130 is reduced, The generated noise can be reduced.

The air having passed through the second fan passage 138b is discharged through the first discharge portion 25 and flows to the lower side of the housing plate 151. [ In this case, the flow direction of the air discharged through the first discharge portion 25 may be a direction toward the second discharge portion 27. The air discharged from the first discharge portion 25 is guided by the flow guide portion 160 and can easily flow in the circumferential direction.

The air flowing along the flow guide part 160 can be changed in direction by the first discharge guide part 158 provided on the lower side of the housing plate 151. In detail, the circumferentially flowing air can flow radially outward while meeting the first discharge guide portion 158. At this time, together with the first discharge guide portion 158, the upper air guide 180 can also guide the air flow in the radial direction.

The air having passed through the upper fan 130 is guided circumferentially by the upper fan housing 150 and the upper cover 120 and discharged through the first discharging portion 25 with a rotational force. The discharged air can be guided by the first discharge guide portion 158 and the upper air guide 180 and can be easily discharged in the radial direction.

On the other hand, an ionizer mounting portion 168 is provided on the outer side of the guide wall 153, in which an ionizer 179 for sterilizing microorganisms in the air is installed. The ionizer 179 may discharge negative ions toward the first fan flow path 138a or the second fan flow path 138b. Therefore, since the air passing through the upper module 100 can be sterilized through the ionizer 179, clean air can be supplied to the user.

[Air flow in the lower module]

26 and 27 are views showing a state in which air having passed through a fan is discharged from a lower module according to the first embodiment of the present invention. FIG. 28 is a perspective view of the upper module and the lower module according to the first embodiment of the present invention. FIG. 5 is a view showing a flow of discharged air. FIG.

Referring to FIGS. 2, 26 and 27, when the lower fan 230 according to the first embodiment of the present invention is driven, air is sucked through the second suction portion 23 of the upper module 200, The second air flow Af2 may be generated through the lower fan 230 and discharged from the second discharge portion 27. [

In detail, according to the rotation of the lower fan 230, the air is sucked upward through the second suction part 23 provided at the lower part of the lower module 200. The air sucked through the second suction portion 23 is sucked in the axial direction of the lower fan 230 through the second pre-filter 295.

The air flowing in the axial direction of the lower fan 230 is discharged in the radial direction of the lower fan 230 and is guided by the guide wall 223 of the lower fan housing 220, And flows in the circumferential direction. The air that has passed through the first fan flow path 234a can flow in the circumferential direction through the second fan flow path 234b positioned on the downstream side of the first fan flow path 234a.

Since the flow cross sectional area of the second fan flow path 234b is larger than the flow cross sectional area of the first fan flow path 234a, the flow resistance of the air passing through the lower fan 230 is reduced, The generated noise can be reduced.

The air that has passed through the second fan flow path 234b is discharged through the second discharge portion 27 and flows to the upper side of the housing plate 221. At this time, the flow direction of the air discharged through the second discharge portion 27 may be a direction toward the first discharge portion 25. The air discharged from the second discharge portion 27 is guided by the flow guide portion 227 and can easily flow in the circumferential direction.

The air flowing along the flow guide part 227 can be changed in direction by the second discharge guide part 229 provided on the upper side of the housing plate 221. In detail, the circumferentially flowing air can flow radially outwardly while meeting the second discharge guide portion 229. At this time, together with the second discharge guide portion 229, the lower air guide 210 can also guide the air flow in the radial direction.

The air having passed through the lower fan 230 is guided circumferentially by the lower fan housing 220 and the lower cover 290 and discharged through the second discharge portion 27 with a rotational force. The discharged air can be guided by the second discharge guide portion 229 and the upper air guide 210 and can be easily discharged in the radial direction.

[Centralized discharge of air through the first and second discharge units]

Referring to FIG. 28, the second discharge portion 27 may be disposed to face the first discharge portion 25 with respect to the air guide devices 180 and 210. The air flow toward the second discharge portion 27 can discharge air in a direction toward the first discharge portion 25. [ In other words, the first air discharged from the first discharge portion 25 and the second air discharged from the second discharge portion 27 can flow to be close to each other.

The air discharged from the first discharge portion 25 is guided by the first discharge guide portion 158 and the upper air guide 180 to be discharged into the first discharge passage 26, The air ejected from the ejection portion 27 can be guided by the second ejection guide portion 229 and the lower air guide 229 and can be ejected to the second ejection flow path 28.

At this time, since the second discharge guide portion 229 can be positioned directly below the first discharge guide portion 158, the air flowing through the first and second discharge flow paths 26 and 28 is concentrated And can be discharged to the outside. With this air flow, the flow pressure acting on the flow generating device 10 can be balanced so that the vibration or noise of the flow generating device 10 can be reduced.

The air discharged through the second discharge portion 27 is easily radially directed toward the second discharge passage 28 by the second flow guide portion 227 and the second discharge guide portion 229 Can be discharged.

The lower module 200 further includes a heater assembly 260 for heating air passing through the lower module 200. The heater assembly 260 is disposed on the suction side of the second blowing fan 230 and the air heated by the heater assembly 260 passes through the second blowing fan 230. The heater assembly 260 has an advantage that warm air can be supplied to the user. In addition, since the heater assembly 260 is provided in the lower module 200, heat generated from the heater assembly 260 can easily act on the air flowing upward.

[Flow direction of the air discharged through the first and second discharge portions]

The rotation direction of the upper fan 130 and the rotation direction of the lower fan 230 may form an opposite direction.

For example, when the flow generator 10 is viewed from the top, the air discharged from the first discharge portion 25 rotates in either the clockwise or counterclockwise direction. On the other hand, the air discharged from the second discharge portion 27 rotates in either the clockwise direction or the counterclockwise direction.

Accordingly, the air discharged through the upper fan 130 and discharged to the lower side of the upper fan housing 150 can be radially guided by one side of the first discharge guide part 158. On the other hand, air discharged through the lower fan 230 to the upper side of the lower fan housing 220 can be radially guided by one side of the second discharge guide part 229.

For example, when the air passing through the upper fan 130 rotates clockwise and moves to the first discharge guide portion 158, the air is guided by the right side of the first discharge guide portion 158 And is discharged in the radial direction. When the air that has passed through the lower fan 230 rotates counterclockwise and moves to the second discharge guide portion 229, the air is guided by the left side of the second discharge guide portion 229 And is discharged in the radial direction.

On the contrary, when the air passing through the upper fan 130 rotates counterclockwise and moves to the first discharge guide part 158, the air is guided by the left side of the first discharge guide part 158 And is discharged in the radial direction. When the air passing through the lower fan 230 rotates clockwise and moves to the second discharge guide portion 229, the air is guided by the right side surface of the second discharge guide portion 229, Direction.

According to this configuration, the flow direction of the air generated in the upper module 100 and the flow direction of the air generated in the lower module 200 may be opposite to each other, 10 can be offset from each other. As a result, the vibration of the flow generating device 10 and the noise thereof can be reduced.

[Definition of Terms]

The upper module 100 and the lower module 200 may be referred to as a "first module" and a "second module", respectively. The upper fan 130, the upper fan housing 150, the upper air guide 180 and the upper cover 120 provided in the upper module 100 are respectively referred to as "first fan", "first fan housing", " The lower fan 230, the lower fan housing 220, the lower air guide 210, and the lower cover 290 provided in the lower module 200 are called a "first air guide" and a "first cover" Quot; second fan ", " second fan housing ", " second air guide ", and " second cover ".

[Rotating Operation of Flow Generating Device]

FIG. 29 is a sectional view showing a fixed portion F and a rotated portion R of the flow generating device according to the first embodiment of the present invention, and FIG. 30 is a sectional view showing the flow generating device according to the first embodiment of the present invention, FIG. 31 is a view showing a state in which the flow generating device according to the first embodiment of the present invention rotates leftward and discharges air toward the left side, and FIG. 32 Is a view showing a state in which the flow generating device according to the first embodiment of the present invention rotates to the right and discharges air toward the right side.

29, the flow generating device 10 according to the first embodiment of the present invention may include a device fixing portion F fixed in one position and a device rotating portion R performing rotating motion . The device rotation part R may be rotated clockwise or counterclockwise with respect to the axial direction.

The apparatus fixing portion F includes a lower orifice 280 of the lower module 100, a rack gear 276 and a heater assembly 260. The device rotation part R can be understood to be the upper module 100 and the rest of the lower module 100 except for the fixed part R. [

[First position of upper module and lower module]

30 is a view showing a first air flow Af1 discharged from the upper module 100 and a second air flow Af2 discharged from the lower module 200 when the upper module 100 and the lower module 200 are in the first position. 2 air flow (Af2). For example, the " first position " can be understood as being a front discharge position for concentrating and discharging air forward. At this time, the first discharge guide portion 158 and the second discharge guide portion 229 may be disposed to face forward.

31 is a view showing a first air flow Af1 discharged from the upper module 100 and a second air flow Af2 discharged from the lower module 200 when the upper module 100 and the lower module 200 are in the second position. 2 air flow (Af2). For example, the " second position " can be understood as a left side discharge position for concentrating and discharging air to the left side room. At this time, the first discharge guide portion 158 and the second discharge guide portion 229 may be disposed to face the left chamber.

[Second Position of Upper Module and Lower Module]

30, when the rotary motor 270 provided in the lower module 200 is driven in one direction, the pinion gear 272 coupled to the rotary motor 270 and the rack gear 276, . Since the rack gear 276 is fixed to the lower orifice 280, the pinion gear 272 rotates along the rack gear 276. In this process, the rotation motor 270 and the pinion gear 272 revolve in the clockwise direction A1 with respect to the axial center of the lower module 200.

The rotary motor 270 is supported by the upper orifice 240 and the upper orifice 240 and the second supporter 267 are coupled to each other, (Rotating). At this time, the center of rotation 267b of the second supporter 267 forms the center of rotation of the upper orifice 240 and the second supporter 267.

The rotary motor 270 and the pinion gear 272 revolve around the rotation center 267b of the second supporter 267 and the upper orifice 240 and the second supporter 267 rotate, Is rotated about the rotation center 267b. At this time, the bearing 275 coupled to the lower orifice 280 is in rolling contact with the bottom of the upper orifice 240.

Since the upper orifice 240 is coupled to the lower cover 290 and the lower cover 290 and the lower fan housing 220 are engaged with each other by the engagement structure, And the lower fan housing 220 are also rotated. The lower fan 230 supported by the lower fan housing 220 and the lower air guide 210 coupled to the lower fan housing 220 are also rotated.

When the rotary motor 270 is driven, the remaining parts of the lower module 200, except for the rack gear 276 and the heater assembly 260 coupled to the fixed lower orifice 280, 267 are rotated integrally with reference to the rotation center portion 267b of the rotation shaft 267b.

Since the lower air guide 210 and the upper air guide 180 are coupled to each other, the rotational force of the lower module 200 can be transmitted to the upper module 100 through the air guides 180 and 210 .

Since the upper fan housing 150 is coupled to the upper air guide 180 and the upper cover 120 and the upper fan 130 are coupled to the upper fan housing 150, The upper fan housing 150, the upper fan 130, and the upper cover 120 rotate integrally. The display cover 110, the top cover supporting portion 103 and the top cover 101, which are supported on the upper side of the upper cover 120, can also rotate together.

When the rotary motor 270 is driven when the upper fan 130 and the lower fan 230 are driven, the first discharging unit 25 and the lower module 200, which are provided in the upper module 100, The second discharging portion 27 provided in the second discharging portion 27 also rotates. Therefore, the flow direction of the discharged air can be changed.

31, the first and second discharge units 25 and 27 rotate in the clockwise direction A1 and can be rotated to the left when viewed from the front.

[Third position of upper module and lower module]

32 is a view showing a first air flow Af1 discharged from the upper module 100 and a second air flow Af2 discharged from the lower module 200 when the upper module 100 and the lower module 200 are in the third position. 2 air flow (Af2). For example, the " third position " can be understood as a right side discharge position for concentrating and discharging air to the right side room. At this time, the first discharge guide portion 158 and the second discharge guide portion 229 may be arranged to face the right chamber.

The third position of the upper module 100 and the lower module 200 is such that the rotary motor 270 is driven in the other direction at the first position so that the pinion gear 272 and the rack gear 276 Can be performed by interlocking. The description of the principle of the rotation of the device rotation portion R in accordance with the interlocking of the pinion gear 272 and the rack gear 276 explains the second position.

However, the third position is different from the second position in that the rotated portion R rotates counterclockwise (A2) with respect to the axial direction to discharge air in the right direction. 32, the first and second discharging portions 25 and 27 rotate in the counterclockwise direction (A2) and can be rotated to the right when viewed from the front.

Due to the movement of the apparatus rotating portion R, the air discharged from the flow generating device 10 can flow in various directions, so that usability can be improved.

Hereinafter, the second to fourth embodiments of the present invention will be described. These embodiments differ from those of the first embodiment only in some configurations. Therefore, differences will be mainly described, and the description and the reference numerals of the first embodiment are used for the same parts as those of the first embodiment.

(Second Embodiment)

FIG. 33 is a perspective view showing the construction of a flow generating device according to a second embodiment of the present invention, and FIG. 34 is a sectional view showing the inside of the main body shown in FIG.

[main body]

The flow generating device according to the second embodiment of the present invention may include a main body 20 'provided with suction portions 21 and 23 and inner discharge portions 25' and 27 'and an outer discharge portion 29 .

The body 20 'may include an upper cover 120, an upper fan housing 150, a lower cover 390, and a lower fan housing 220, as in one embodiment of the present invention. The main body 20 'may further include an outer discharge body 390.

The outer discharge body 390 may constitute a housing assembly together with the upper cover 120, the upper fan housing 150, the lower cover 390 and the lower fan housing 220.

The flow generating device of the present embodiment may further include air guides 180 and 210, as in the embodiment of the present invention.

[Suction section]

The suction portions 21 and 23 may be provided on the body 20 'and the pair of suction portions 21 and 23 may be located on the opposite side of the body 20'. The pair of suction portions 21 and 23 may include a first suction portion 21 and a second suction portion 23.

When one of the first suction portion 21 and the second suction portion 23 is formed on the upper portion of the main body 20 ', the other of the first suction portion 21 and the second suction portion 23 And may be formed at the bottom of the body 20 '. In this case, the first suction portion 21 and the second suction portion 23 may be formed at different heights of the main body 20 '.

The first suction portion 21 may be formed in the upper cover 120. The second suction portion 23 may be formed on the lower cover 290.

[Inner discharging portion]

The inner discharge portions 25 'and 27' may be provided inside the body 20 ', and the pair of inner discharge portions may include a first inner discharge portion 25' and a first inner discharge portion 27 ' And a second inner discharge portion 27 'spaced apart from the second inner discharge portion 27'.

The first inner discharge portion 25 'may be a first discharge portion through which the air flowed by the upper fan 130 passes. The first inner discharge portion 25 'may be formed in the upper fan housing 150.

The second inner discharge portion 27 'may be a second discharge portion through which the air blown by the lower fan 230 passes. The second inner discharge portion 27 'may be formed in the lower fan housing 220.

[Outer discharge portion]

At least one outer discharge portion 29 may be provided in the main body 20 'and air passing through the first inner discharge portion 25' and air passing through the second inner discharge portion 29 ' And can be discharged to the outside of the main body 20 '

The outer discharge portion 29 is an opening formed in a central portion of the main body 20 'and air in the main body 20' may be discharged to the outside of the main body 20 'through the outer discharge portion 29.

[Opening Direction of Outer Discharge Portion]

The outer discharge portion 29 can be opened radially to the main body 20 '. The opening direction of the outer discharge portion 29 may be orthogonal to the opening direction of the first suction portion 21 and the opening direction of the second suction portion 23. [

When the first suction portion 21 is opened in the upper portion of the main body 20 in the up and down direction and the second suction portion 23 is opened in the lower portion of the main body 20 in the up and down direction, And can be opened horizontally to the main body 20.

[Size of outer discharge portion]

The size of the outer discharge portion 29 may be smaller than the sum of the size of the first suction portion 21 and the size of the second suction portion 23. When the size of the outer discharge portion 29 is small, the concentrated air can be discharged to the outside of the main body 20 '.

[Air guide and outer discharge part]

The air guides 180 and 210 may be a connector for connecting the upper fan housing 150 and the lower fan housing 220 and may be connected to the discharge fan 26 between the upper fan housing 150 and the lower fan housing 220. [ The upper fan housing 150 and the lower fan housing 220 can be connected to each other.

The air guides 180 and 210 may be connected to the upper fan housing 150 and the lower fan housing 220 such that the upper fan housing 150 and the lower fan housing 220 are disposed in parallel.

The air guides 180 and 210 include a first air guide 180 forming a first discharge passage 26 through which air having passed through the first inner discharge portion 25 'is guided; And a second air guide 210 for forming a second discharge passage 28 for guiding air that has passed through the second inner discharge portion 27 '.

The outer discharge portion 29 can communicate with the discharge flow paths 26, The outer discharge portion 29 can communicate with each of the first discharge passage 26 and the second discharge passage 28. [

When the upper fan 130 is driven, the air can be discharged to the first discharge passage 26 after sequentially passing through the first suction portion 21 and the first inner discharge portion 25 ' The air of the flow passage 26 can be discharged to the outside of the main body 20 'through the outer discharge portion 29.

The air can be discharged to the second discharge passage 28 after sequentially passing through the second suction portion 23 and the second inner discharge portion 27 when the lower fan 230 is driven, The air in the flow path 28 can be discharged to the outside of the main body 20 'through the outer discharge portion 29.

[Outer discharge body]

The outer discharge body 390 can constitute a part of the appearance of the flow generating device, and its outer surface can be exposed to the outside.

The outer discharge body 390 may be disposed so as to surround at least a part of the outer circumference of the air guides 180 and 210. The outer discharge body 390 may be disposed between the upper cover 120 and the lower cover 290. [

The outer discharge body 390 may have an outer discharge portion 29 formed therein. The air discharged into the discharge flow paths 26 and 28 can be guided by the outer discharge body 390 to be flowed to the outer discharge portion 29 and discharged through the outer discharge portion 29 to the outside of the main body 20 ' .

The outer discharge body 390 may have a circular cross-sectional shape. One end and the other end of the outer discharge body 390 may be spaced apart in the circumferential direction. The sectional shape of the outer discharge body 390 may be a friendly shape.

The outer discharging part 29 may be formed between one end of the outer discharging body 390 and the other end of the outer discharging body 390.

An inner curved surface 391 for guiding the air that has passed through the first inner discharging portion 25 'and the air that has passed through the second inner discharging portion 27' to the outer discharging portion 29 is provided in the outer discharging body 390 . The outer discharge body 390 may include an outer curved surface 392 which is an opposite surface of the inner curved surface.

[Inner surface of outer discharge body]

The inner curved surface 391 can be brought into contact with the outer peripheries of the air guides 180 (210).

The upper part of the inner curved surface 391 can face the first air guide 180 in the horizontal direction and the first inner discharge part 25 'is formed between the upper part of the inner curved surface 391 and the first air guide 180. [ The air can be guided to the outer discharge portion 29 through the first discharge passage 26. [

A lower portion of the inner curved surface 391 faces the second air guide 210 in the horizontal direction and a second inner discharge portion 27 'is formed between the lower portion of the inner curved surface 391 and the second air guide 210. [ The second discharge passage 28 can be formed in which the air discharged from the second discharge passage 28 is guided to the outer discharge portion 29.

[Outer surface of outer discharge body]

The outer curved surface 392 may have a convex shape having a curvature in the up-and-down direction. The outer curved surface 392 may be in contact with the lower surface of the outer surface of the upper cover 120,

(Third Embodiment)

FIG. 35 is a perspective view showing a configuration of a flow generating device according to a third embodiment of the present invention, and FIG. 36 is a sectional view showing the inside of the body shown in FIG.

[Outer discharge portion]

The outer discharging portion 29 of the present embodiment includes a first outer discharging portion 29A communicating with the first discharging flow passage 26 and a second outer discharging portion 29B communicating with the second discharging flow passage 28 And other structures and actions other than the first outer discharging portion 29A and the second outer discharging portion 29B are the same as or similar to those of the second embodiment of the present invention, and thus a detailed description thereof will be omitted.

The outer discharging body 390 of the present embodiment may include a shielding portion 29C positioned between the first outer discharging portion 29A and the second outer discharging portion 29B.

[Height of open mouth]

The shielding portion 29C may be formed at a height that allows the outer circumference of the lower end of the first air guide 180 and the outer circumference of the upper end of the second air guide 210 to face together.

[Inner surface of shielding part]

The shielding portion 29C may include an inner surface facing the air guides 180 and 210. The inner surface of the shield portion 29C may surround the lower end outer periphery of the first air guide 180 and the upper end outer periphery of the second air guide 210 Respectively.

The lower outer circumference of the first air guide 180 and the outer circumference of the upper end of the second air guide 210 may be surrounded by the inner curved surface 391 of the outer discharge body 390 and the inner surface of the shield 29C .

[Effect of outer discharge body]

The air guides 180 and 210 can cover the entire gap between the first air guide 180 and the second air guide 210 by the outer discharge body 390, .

The air guided to the first discharge passage 26 and the air guided to the second discharge passage 28 are dispersed and discharged to the first outer discharge portion 29A and the second outer discharge portion 29B .

(Fourth Embodiment)

FIG. 37 is a perspective view showing a configuration of a flow generating device according to a fourth embodiment of the present invention, and FIG. 38 is a sectional view showing the inside of the main body shown in FIG.

The upper cover 120 'of the present embodiment may include a lower flow path body portion 120A forming the first discharge flow path 26. [ The lower cover 290 'may include an upper flow path body portion 290A forming the second discharge flow path 28. [

[Lower air body portion of upper cover]

The lower air body 120A may surround the outer circumferential surface of the first air guide 180. The first discharge passage 26 may be formed between the outer circumferential surface of the first air guide 180 and the inner circumferential surface of the lower flow path body portion 120A.

[Upper flow body of lower cover]

The upper air body portion 290A may be formed to surround the outer circumferential surface of the second air guide 210. [ The second discharge passage 28 may be formed between the outer circumferential surface of the second air guide 210 and the inner circumferential surface of the upper oil passage body portion 290A.

[Contact between upper cover and lower cover]

The lower end 120B of the upper cover 120 'may be in contact with the upper end 290B of the lower cover 290'.

[Outer discharge portion]

In this embodiment, the outer discharge portion 29 'may be formed in each of the upper cover 120' and the lower cover 290 '. The upper cover 120 'may be provided with a first outer discharging portion 29A' communicating with the first discharging flow path 26. A second outer discharge portion 29B 'communicating with the second discharge flow passage 28 may be formed in the lower cover 290'.

The first outer discharging portion 29A 'and the second outer discharging portion 29B' can form one opening when the upper cover 120 'and the lower cover 290' are in contact with each other, Can communicate with each of the first discharge passage (26) and the second discharge passage (28).

10: flow generating device 100: upper module
110: display cover 120: upper cover
130: upper fan 150: upper fan housing
180: upper air guide 200: lower module
210: lower air guide 220: lower fan housing
230: Lower fan 240: Upper orifice
260: heater assembly 270: rotary motor
280: Lower orifice 290: Lower cover

Claims (20)

A cover having a cover inflow portion with an upper end opened and a cover discharge portion with a lower end opened;
A top cover assembly covering the cover inlet;
A fan housing provided inside the cover and having a housing plate covering the cover discharge portion; And
And a fan disposed in the fan housing and introducing the air introduced through the cover inlet in an axial direction and discharging the air in a radial direction,
Wherein the fan housing is provided with a discharge portion spaced apart from an outer peripheral surface of the fan in a radial direction of the fan. The method according to claim 1,
Wherein a size of the cover discharge portion is larger than a size of the cover inflow portion. The method according to claim 1,
The top cover assembly includes:
A display cover which is seated in the cover inflow portion and in which a cover grill is formed;
A top cover supporter coupled to an upper side of the display cover; And
And a top cover disposed on the top of the top cover supporting portion. The method of claim 3,
Wherein the space between the top cover supporting portion and the display cover forms a suction portion communicating with the cover inflow portion. The method of claim 3,
A central portion of the top cover supporting portion is coupled to a central portion of the display cover,
And an edge portion of the top cover supporting portion is vertically spaced from the display cover. The method according to claim 1,
Further comprising an air guide coupled to a lower side of the housing plate and guiding air discharged from the discharge unit. The method according to claim 6,
And a motor for rotating the fan is disposed inside the air guide. An upper cover having an upper cover inflow portion having an upper end opened and an upper cover discharge portion having a lower end opened;
A top cover assembly covering the top cover inlet;
An upper fan housing provided inside the upper cover and having a first housing plate covering the upper cover discharge portion;
An upper fan disposed in the upper fan housing and introducing air introduced through the upper cover inlet in an axial direction and discharging the air in a radial direction;
A lower cover positioned below the upper cover and having a lower cover inlet opening with a lower end and a lower cover outlet opening with an upper end;
A lower fan housing provided inside the lower cover and having a second housing plate covering the lower cover discharge; And
And a lower fan disposed in the lower fan housing and introducing air introduced through the lower cover inlet in an axial direction and discharging the air in a radial direction. 9. The method of claim 8,
Wherein the upper fan housing is provided with a first discharge portion spaced apart from an outer peripheral surface of the upper fan in a radial direction of the upper fan,
Wherein the lower fan housing has a second discharge portion spaced apart from an outer peripheral surface of the lower fan in a radial direction of the lower fan. 9. The method of claim 8,
The size of the upper cover discharge portion is larger than the size of the upper cover inflow portion,
Wherein a size of the lower cover discharge portion is larger than a size of the lower cover inflow portion. 11. The method of claim 10,
An upper air guide for guiding air discharged to the first discharge portion; And
And a lower air guide coupled to a lower side of the upper air guide and guiding air discharged to the second discharge portion. 12. The method of claim 11,
The upper air guide is fastened to the lower side of the upper fan housing,
And the lower air guide is fastened to the upper side of the lower fan housing. 12. The method of claim 11,
Wherein an upper motor for rotating the upper fan and a lower motor for rotating the lower fan are disposed in a space between the upper air guide and the lower air guide. 12. The method of claim 11,
And a drive device for rotating the first discharge portion and the second discharge portion together. 15. The method of claim 14,
The driving device includes:
A rotary motor;
A pinion gear connected to the rotation motor; And
And a rack gear gear-engaged with the pinion gear and having a rounded shape. 16. The method of claim 15,
Further comprising an upper orifice formed on an inner side of the lower cover below the lower fan housing and having a motor support portion to which the rotation motor is fixed. 17. The method of claim 16,
Further comprising a lower orifice provided on an inner side of the lower cover below the upper orifice and formed with a rack fastening member to which the rack gear is fastened. 18. The method of claim 17,
A first supporter fastened to the upper side of the lower orifice and having a supporter center portion; And
And a second supporter coupled to a lower side of the upper orifice and disposed on the upper side of the first supporter and having a rotation center portion rotatably connected to the supporter center portion. 19. The method of claim 18,
Wherein the upper fan housing, the lower fan housing, the upper orifice and the second supporter rotate about the lower orifice and the first supporter when the drive device operates. 18. The method of claim 17,
Wherein the lower orifice is provided with a roller that contacts the bottom surface of the upper orifice to guide rotation of the upper orifice.

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