KR20230075100A - Air Blower - Google Patents

Abstract

An air blower is disclosed. According to an embodiment of the present invention, an air blower may be provided, comprising: a main housing formed with a space through which fluid flows, extending in one direction, and having a main discharge port communicating with the outside and the space and a sub discharge port physically spaced apart from the main discharge port formed therethrough; a sub-housing coupled to one end of the main housing; and a discharge passage forming part partially covering the outer circumference of the main housing and rotatably coupled to the sub-housing. The discharge passage forming part comprises: a guide member extending in the one direction and arranged to cover the sub discharge port in a radial direction; a guide gear part coupled to the guide member and rotatably accommodated in an internal space of the sub-housing; and a driving gear part gear-coupled with the guide gear part and rotatably accommodated in the internal space of the sub-housing. When the driving gear part rotates, the guide member is rotated in either a clockwise or counterclockwise direction along the outer circumference of the main housing to control the flow of fluid discharged from the sub discharge port. Therefore, a user can easily control the direction of air discharged from the air blower by simply controlling the position of the guide member.

Description

Air Blower {Air Blower}

The present invention relates to an air blower, and more particularly, to an air blower having a structure capable of varying the direction and flow rate of a discharged fluid flow path.

An air blower refers to any device capable of sucking in air from the outside and discharging the sucked air to the outside again. The air blower circulates indoor air and is used to remove dust or the like remaining in the room.

In addition, the air blower may also be used to refresh components of air in a specific space in the room. For example, when a user stays only in a specific space for a long time, there is a possibility that the concentration of carbon dioxide in that space is particularly high. Accordingly, the air blower may circulate air having a composition suitable for living by the user by communicating the corresponding space with another space.

In the case of the recent outbreak of COVID-19, cases of increased contagiousness in closed indoor spaces have been reported. Accordingly, interest in ventilation through circulation of air staying indoors as well as ventilation using outdoor air is increasing, and air blowers are attracting attention.

The air blower is provided with a fan for sucking in outside air and discharging the sucked outside air again in a desired direction. The fan may suck in air through an opening that communicates the inside and outside of the air blower and provide a transfer force for discharging the air.

The air blower may be classified into a case in which the fan is exposed to the outside and a case in which the fan is mounted inside a housing and not exposed to the outside.

The traditional type of air blower, like a fan, is a type in which the fan is exposed to the outside and the flow of air can be intuitively perceived. However, recently, for reasons of safety and aesthetics, an air blower of a type in which the fan is not exposed to the outside has been in the limelight.

Since the air blower as described above discharges air only through the opening, it may be difficult for the user to easily recognize the discharge direction, flow rate and direction of the air.

In addition, since the air blower as described above discharges air through a narrow space compared to the case where the fan is exposed to the outside, there is a limit to the increase in the flow rate of the discharged air. Furthermore, air blowers currently on the market are inconvenient to operate the entire air blower when changing the flow direction of air due to its structural limitations.

Accordingly, techniques for effectively forming a flow path for air discharged from an air blower have been introduced.

Korean Patent Registration No. 10-1767054 discloses a Coanda electric fan. Specifically, a Coanda fan is disclosed which has a Coanda board formed in the shape of a hat, so that discharged air is guided downward along the outer surface of the Coanda board, and the blowing force can be transmitted in all directions of the bottom surface.

However, the Coanda electric fan disclosed in the prior literature provides only a method for forming the flow direction of air in one direction, that is, downward. That is, the prior art documents do not suggest a method for forming the flow of air discharged from the Coanda fan in a direction other than the lower side.

Korean Patent Publication No. 10-2011-0099284 discloses a fan assembly. Specifically, a fan assembly having a structure capable of sucking in external air without a fan exposed to the outside and discharging the sucked air through a nozzle is disclosed.

However, in the fan assembly disclosed in the prior art document, the inside of a member through which air is discharged is formed through, and the air discharge passage is fixedly formed only on the outer circumference surrounding the hollow. Therefore, the prior art documents do not suggest a method for controlling the flow rate or direction of the discharged air without rotating the entire structure.

Korean Patent Document No. 10-1469965 discloses an annular nozzle for a fan without blades. Specifically, an annular nozzle for an electric fan having a structure in which a Coanda inclined surface is formed in front of an outlet formed behind an inner circumference of the annular nozzle to reduce resistance to discharged wind is disclosed.

However, the annular nozzle disclosed in the prior literature assumes that the member through which air is discharged is formed in an annular shape. That is, the structure of the nozzle disclosed in the prior literature is difficult to apply to a nozzle having a shape other than an annular shape.

Furthermore, the annular nozzle disclosed in the prior literature can increase the flow rate of the fluid using the Coanda effect, but does not suggest a method for controlling the flow direction of the fluid.

Korean Registered Patent Document No. 10-1767054 (2017.08.11.) Korean Patent Publication No. 10-2011-0099284 (2011.09.07.) Korean Patent Document No. 10-1469965 (2014.12.08.)

An object of the present invention is to provide an air blower having a structure capable of solving the above problems.

First, an object of the present invention is to provide an air blower having a structure capable of forming a plurality of passages through which air is discharged.

Another object of the present invention is to provide an air blower having a structure capable of easily controlling the direction of a flow path through which air is discharged.

Another object of the present invention is to provide an air blower having a structure capable of easily controlling the flow rate of air discharged in a specific direction.

In addition, an object of the present invention is to provide an air blower having a structure capable of effectively mixing and separating a plurality of formed passages.

In addition, an object of the present invention is to provide an air blower having a structure in which various functions can be easily expanded.

In order to achieve the above object, the present invention has a main outlet in which a space in which fluid flows is formed, extends in one direction, and communicates with the outside of the space, and a sub outlet physically separated from the main outlet a through-formed main housing; a sub-housing coupled to one end of the main housing; and a discharge passage forming part partially covering an outer circumference of the main housing and rotatably coupled to the sub housing, wherein the discharge passage forming part extends in the one direction and covers the sub discharge port in a radial direction. a guide member to be disposed; a guide gear unit coupled to the guide member and rotatably accommodated in the inner space of the sub-housing; and a driving gear part gear-coupled to the guide gear part and rotatably accommodated in the inner space of the sub-housing, so that when the driving gear part is rotated, the guide member moves clockwise along the outer circumference of the main housing. and counterclockwise rotation to control the flow of the fluid discharged from the sub outlet.

In addition, the main housing may include a main frame enclosing a portion of the space of the main housing and having the main discharge port penetrated therethrough; An air blower is provided, which surrounds another part of the space of the main housing and includes a subframe spaced apart from the main frame in a radial direction, wherein the sub outlet is formed by spaced apart from the main frame and the subframe. It can be.

In addition, the main frame extends in a direction toward the sub frame, and its end is positioned radially inside the sub frame so as to overlap with the sub frame in a radial direction, and the sub discharge port is connected to the outer circumference of the main frame. An air blower, defined as a space formed between the inner circumferences of the sub-frames, may be provided.

In addition, the air blower may be provided in which the main frame and the sub-frame are formed to have an arc-shaped cross section, and the diameter of the cross section of the sub frame is larger than the diameter of the cross section of the main frame.

In addition, the guide member is formed to have an arc-shaped cross section, the cross section of the main frame is formed in an arc shape having a different curvature than the cross section of the guide member, when the guide member is moved toward the main discharge port, the An air blower may be provided, the guide member being in contact with the main frame.

In addition, the guide member is rotated along the outer circumference of the sub frame, and is positioned to be spaced apart from the main frame to open the sub discharge port; and a second position positioned adjacent to the main frame to reduce an open area of the sub outlet.

In addition, an air blower is provided inside the main housing, extending along the one direction, and partially surrounded and defined by the main frame and the subframe, respectively, to form a plurality of flow spaces in which the fluid flows. can

In addition, the flow space may include a main flow space partially surrounded by the main frame and the sub frame and communicating with the main discharge port; and a sub flow space partially surrounded by the main frame and the sub frame, in communication with the sub outlet, and physically separated from the main flow space.

In addition, the main housing includes a partition member extending in the one direction and partitioning the space of the main housing into a plurality of flow spaces, and the partition member extends to one side of the space of the main housing. a first partition member positioned biasedly to partition a part of the sub flow space and the main flow space; and a second partition member positioned biased toward the other side of the space of the main housing to partition the main flow space from the remaining part of the sub flow space.

In addition, when the guide member is positioned apart from the main frame and moved to a first position to open the sub discharge port, a discharge angle between the fluid discharged from the main discharge port and the fluid discharged from the sub discharge port is reduced, When the guide member is positioned adjacent to the main frame and moved to a second position where the area in which the sub discharge port is open is reduced, the discharge angle between the fluid discharged from the main discharge port and the fluid discharged from the sub discharge port increases. An air blower may be provided.

In addition, the guide gear portion is formed on the radially inner side, the drive gear portion and gear-coupled (gear fit) teeth portion; And an air blower may be provided including an outer circumferential portion formed radially outward and coupled to the guide member to move together.

In addition, the sub housing may include a sub outer circumference surrounding the space; and a sub-opening through which the outer circumferential portion of the guide gear unit or the guide member passes through the outer circumference of the sub-circumference.

In addition, an air blower may be provided in the sub-opening, which extends by a preset length along a direction in which the sub outer circumference extends.

In addition, a plurality of sub discharge ports are formed, the plurality of sub discharge ports are disposed on opposite sides of the main housing with the main discharge port interposed therebetween, and a plurality of guide members are provided, so that the plurality of guide members An air blower configured to open or close each of the plurality of sub outlets may be provided.

In addition, the main housing may include a main frame surrounding a portion of the space of the main housing, having an arc-shaped cross section, and having the main discharge port penetrated therethrough; and a subframe surrounding another part of the space of the main housing, having an arc-shaped cross section, and spaced apart from the main frame in a radial direction, wherein the sum of extension lengths of the plurality of guide members is An air blower may be provided in which the guide member is formed to be larger than half of the sum of the extension lengths of the main frame and the sub-frame, and the guide member overlaps the main frame and the sub-frame in a radial direction.

In addition, the present invention, a main housing in which a space in which fluid flows is formed, extends in one direction, and a main outlet communicating with the outside and the space and a sub outlet physically spaced apart from the main outlet are formed through the main housing; a sub-housing coupled to one end of the main housing and having a space physically separated from the space of the main housing therein; a suction part coupled to the other end of the main housing, the inside of which communicates with the space and the outside of the main housing, respectively, to filter fluid introduced from the outside; and a discharge passage forming part partially covering an outer circumference of the main housing and rotatably coupled to the sub housing, wherein the discharge passage forming part extends in one direction and covers the sub discharge port in a radial direction. a guide member to be; a guide gear unit coupled to the guide member and rotatably accommodated in the space of the sub-housing; and a driving gear part gear-coupled with the guide gear part and rotatably accommodated in the space of the sub-housing, so that when the driving gear part is rotated, the guide member rotates clockwise and clockwise along the outer circumference of the main housing. The air blower is rotated in one of the counterclockwise directions to control the flow of the fluid discharged from the sub discharge port.

In addition, the suction unit may include an outer case through which a plurality of suction openings communicating with the outside are formed; and a filter member filtering fluid introduced through the intake opening.

According to an embodiment of the present invention, the following effects can be achieved.

First, the main housing of the air blower is provided with a plurality of outlets communicating with the outside. The main outlet is configured to discharge air toward one side of the air blower, for example, the front side. The sub outlet is spaced apart from the main outlet and discharges air in a direction different from that of the main outlet.

Accordingly, the air blower may discharge sucked air to the outside through the plurality of discharge ports. Accordingly, a plurality of air discharge passages are formed so that air can flow toward various spaces.

Also, the discharge passage forming part is coupled to the main housing. The guide member of the discharge passage forming part is coupled to the main housing so as to be movable along the outer circumference of the main housing. As the guide member moves, the open area of the sub discharge port may be changed, and thus the flow direction of air discharged from the sub discharge port may be changed.

Accordingly, the user can easily control the direction of the air discharged from the air blower by simply manipulating the position of the guide member.

Also, as the open area of the sub discharge port is controlled by the guide member, the flow of air discharged from the sub discharge port may be controlled. Specifically, when the sub outlets are opened most widely, most of the air discharged from the sub outlets flows along the direction in which the sub outlets extend. Thus, the air blower can discharge air to the widest space. At this time, the amount of air discharged per unit space is small compared to other cases.

When the sub outlet is opened to an intermediate degree, that is, between the maximum open state and the minimum open state, part of the air in the sub outlet flows along the direction in which the sub outlet extends, and the other part flows into the main air outlet by the Coanda effect. It is mixed with the air discharged from the discharge port. At this time, the air blower can discharge a larger amount of air per unit space into a narrow space than in the above case.

When the sub outlet is opened most narrowly, most of the air from the sub outlet is mixed with the air discharged from the main outlet by the Coanda effect. Accordingly, the air blower may discharge air into the narrowest space, but discharge the largest amount of air per unit space.

Accordingly, the size of the space through which air is discharged and the flow rate of air discharged per unit space can be easily controlled.

In addition, the process can be easily adjusted according to the extent to which the guide member covers the sub discharge port. The user can easily control the direction and flow rate of discharged air simply by controlling the movement of the guide member without additional manipulation.

Therefore, mixing and separation of the plurality of flow passages formed by the air blower can be effectively performed.

In addition, in one embodiment, a filter member, a sterilization module, a humidifying module, and the like may be detachably coupled to the air blower. The air sucked into the air blower passes through the filter member, the sterilization module, or the humidification module, and may be treated and then discharged to the outside.

Accordingly, the air blower can perform various functions simply by coupling an arbitrary member for improving air quality to the air blower. Accordingly, the user's convenience and satisfaction may be increased.

1 is a perspective view showing an air blower according to an embodiment of the present invention.
Figure 2 is a front view showing the air blower of Figure 1;
3 is an exploded perspective view showing the configuration of the air blower of FIG. 1;
Fig. 4 is an AA sectional view showing the configuration of the air blower of Fig. 1;
5 is a BB cross-sectional view showing the configuration of the air blower of FIG. 1;
6 is a perspective view showing an air blower according to another embodiment of the present invention.
7 is a front view showing the air blower of FIG. 6;
8 is an exploded perspective view showing the configuration of the air blower of FIG. 6;
Fig. 9 is a CC sectional view showing the configuration of the air blower of Fig. 6;
Fig. 10 is a DD sectional view showing the configuration of the air blower of Fig. 6;
FIG. 11 is a schematic diagram illustrating a flow process of air when the guide member of the air blower of FIG. 1 is in a first position.
FIG. 12 is a schematic diagram illustrating an air flow process when the guide member of the air blower of FIG. 1 is in a second position.
FIG. 13 is a schematic diagram illustrating an air flow process when the guide member of the air blower of FIG. 1 is in a third position.
FIG. 14 is a schematic diagram illustrating an air flow process when the guide member of the air blower of FIG. 7 is in a first position.
FIG. 15 is a schematic diagram illustrating an air flow process when the guide member of the air blower of FIG. 7 is in a second position.
FIG. 16 is a schematic diagram illustrating a flow process of air when the guide member of the air blower of FIG. 7 is in a third position.

Hereinafter, the air blowers 10 and 20 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the following description, descriptions of some components may be omitted to clarify the characteristics of the present invention.

The term "communication" as used in the following description means that one or more members are fluidly connected to each other. In one embodiment, communication may be formed by a member such as a conduit, pipe, or pipe.

The term "conductive" used in the following description means that one or more members are connected to each other so that a current or an electrical signal can be transmitted. In one embodiment, the current may be formed in a wired form by a conducting wire member or the like or a wireless form such as Bluetooth, Wi-Fi, or RFID.

The term "fluid" used in the following description refers to any form of material that can be transported by an external force. In one embodiment, the fluid may include air or purified air.

The term "air blower" used in the following description refers to any device capable of sucking air or other gas and discharging it to the outside. In one embodiment, the air blower is fanless, that is, to air A fan for providing transfer force may be provided in a structure that is not exposed to the outside.

"Main Discharge (MD)" used in the following description means an opening through which air flowing in the main flow space (MS) is discharged. The main outlet M.D. may be formed through the main housing 100 .

In one embodiment, the main discharge port (MD) may be formed to extend long in the height direction of the main housing 100, in the vertical direction in the illustrated embodiment. When the main housing 100 and the sub-housing 200 communicate with each other, the main outlet M.D. may extend between the main housing 100 and the sub-housing 200 .

A flow path formed by air discharged from the main outlet M.D. may be defined as a main flow path M.F. In one embodiment, the main flow path M.F may extend toward the front side of the air blowers 10 and 20 .

As used in the following description, “sub discharge port (Sub Discharge, SD)” refers to an opening through which air flowing in the sub flow space (S.S) is discharged. The sub discharge port SD may be formed through the main housing 100 .

In one embodiment, the main discharge port (SD) may be formed to extend long in the height direction of the main housing 100, in the vertical direction in the illustrated embodiment. When the main housing 100 and the sub-housing 200 communicate with each other, the sub discharge port SD may extend between the main housing 100 and the sub-housing 200 .

A flow path formed by air discharged from the sub outlet M.D. may be defined as a sub flow path (S.F). In an embodiment, the discharge amount and discharge angle of the sub-passage S.F may be adjusted according to the operation of the discharge passage forming parts 400 and 800 .

The terms “upper side”, “lower side”, “front side”, “rear side”, “left side” and “right side” described below will be understood with reference to the coordinate system shown in FIGS. 1 to 16 respectively.

The air blower 10 according to an embodiment of the present invention may suck external air and discharge it to the outside again. At this time, the air blower 10 may discharge air in various directions and flow rates according to a user's request. At this time, the above process may be performed without moving the main body of the air blower 10 itself.

Hereinafter, the configuration of the air blower 10 according to the present embodiment will be described in detail with reference to FIGS. 1 to 5 .

In the illustrated embodiment, the air blower 10 includes a main housing 100, a sub housing 200, a suction part 300, and a discharge passage forming part 400.

(1) Description of the main housing 100

The main housing 100 forms the body of the air blower 10 . The main housing 100 forms part of the exterior of the air blower 10 . A space may be formed inside the main housing 100 to form a flow path through which air introduced from the outside flows.

The space of the main housing 100 communicates with the outside. External air may enter the space. In addition, the air introduced into the space may flow while forming a predetermined flow path, and then discharged to the outside again. Accordingly, the space may be defined as a "flow space".

Various components may be mounted inside the main housing 100 . In one embodiment, various members for forming a flow path of the introduced air may be accommodated inside the main housing 100 .

The main housing 100 may have an arbitrary shape capable of mounting components of the air blower 10 and forming an external shape of the air blower 10 . In the illustrated embodiment, the main housing 100 has a circular cross section in the horizontal direction and a cylindrical shape having a height in the vertical direction.

The main housing 100 is coupled to the sub housing 200 . The discharge passage forming part 400 rotatably coupled to the main housing 100 may be operated by the sub housing 200 . In the illustrated embodiment, the upper end of the main housing 100 is coupled to the sub-housing 200 .

The main housing 100 is coupled to the suction part 300 . The inside of the main housing 100 communicates with the suction part 300 , and air introduced through the suction part 300 may flow into the inner space of the main housing 100 . In the illustrated embodiment, the lower end of the main housing 100 is coupled to the suction unit 300 .

The main housing 100 is coupled to the discharge passage forming part 400 . Specifically, the discharge passage forming part 400 covers a part of the outer circumference of the main housing 100 and is rotatably coupled to the main housing 100 . In an embodiment in which the main housing 100 has a cylindrical shape, the discharge passage forming part 400 may be rotated by a predetermined angle based on a central axis formed inside the main housing 100 . A detailed description thereof will be described later.

The main housing 100 may be formed of a lightweight yet highly rigid material. In one embodiment, the main housing 100 may be formed of a synthetic resin material such as reinforced plastic.

In the illustrated embodiment, the main housing 100 includes a main frame 110, a sub frame 120 and a partition member 130. The main frame 110, the sub frame 120, and the partition member 130 extend in the height direction of the main housing 100, in the illustrated embodiment, in the vertical direction. In addition, the main frame 110, the sub frame 120 and the partition member 130 may be formed in a plate shape having a predetermined thickness.

The main frame 110 forms a part of the outer circumference of the main housing 100 . In the embodiment shown in FIG. 4 , the main frame 110 forms part of the front of the main housing 100 .

The main frame 110 may have a shape corresponding to that of the main housing 100 . In the illustrated embodiment, the main housing 100 has a cylindrical shape, and the main frame 110 may be formed in an arc shape with a center located inside the main housing 100 and having a predetermined central angle. there is.

The main frame 110 is partially covered by the discharge passage forming part 400 . That is, in the embodiment shown in FIG. 4 , each end in the direction in which the main frame 110 extends is formed to be partially covered by the discharge passage forming part 400 .

The main frame 110 may be formed such that its curvature changes along its extension direction. That is, in the embodiment shown in FIG. 4 , the curvature of both ends of the main frame 110 is formed to have a different curvature from the curvature of the central portion of the main frame 110 . In the above embodiment, both end portions of the main frame 110 are formed to have a smaller curvature than the central portion of the main frame.

A through hole is formed inside the main frame 110 . The through hole extends in the height direction of the main frame 110, in the vertical direction in the illustrated embodiment. The through hole is formed through the thickness direction of the main frame 110, in the front-rear direction in the illustrated embodiment. The through hole may be defined as a main discharge hole MD, which is one of passages through which air is discharged.

The main discharge port (MD) communicates with the main flow space (MS) of the inner space of the main housing 100 . As will be described later, the main flow space MS may be partitioned and defined by the partition member 130 .

The main frame 110 partially surrounds the main flow space MS and the sub flow space SS. In the illustrated embodiment, the main frame 110 partially surrounds the front side of the main flow space MS. In addition, the main frame 110 partially surrounds the front side, left side and right side of the sub flow space SS.

The main frame 110 is disposed to be spaced apart from the sub frame 120 . A predetermined space is formed between the main frame 110 and the sub frame 120, which may be defined as a sub discharge port SD, which is one of passages through which air is discharged.

The sub discharge port (SD) communicates with the sub flow space (S.S) of the inner space of the main housing 100 . As will be described later, the sub flow space SS may be partitioned and defined by the partition member 130 .

In the illustrated embodiment, the main frame 110 includes a first main end 111 and a second main end 112 .

The first main end 111 and the second main end 112 respectively form respective ends of the main frame 110 in the extending direction. In the illustrated embodiment, the first main end 111 forms the left end of the main frame 110 and the second main end 112 forms the right end of the main frame 110 .

The first main end 111 and the second main end 112 are arranged overlapping the sub frame 120 along the radial direction of the center of the main housing 100 . That is, in the embodiment shown in FIG. 4 , the first main end 111 is located on the rear side of the first sub end 121a of the sub frame 120, and the second main end 112 is the sub frame ( 120) is located on the rear side of the second part end 122a.

The first main end 111 and the second main end 112 are disposed overlapping the discharge passage forming part 400 along the radial direction of the center of the main housing 100 . That is, in the embodiment shown in FIG. 4 , the first main end 111 is disposed to overlap the first guide member 411 of the discharge passage forming part 400, and the second main end 112 is the discharge passage. It is disposed overlapping with the second guide member 412 of the formation part 400 .

Therefore, the first main end 111 is located on the rear side of the front end of the first guide member 411, and the second main end 112 is on the rear side of the front end of the second guide member 412. can be said to be located in

The sub frame 120 forms another part of the outer circumference of the main housing 100 . In the embodiment shown in FIG. 4 , the sub frame 120 forms part of the rear of the main housing 100 .

The sub frame 120 may have a shape corresponding to the shape of the main housing 100 . As described above, since the main housing 100 has a cylindrical shape, the subframe 120 may be formed in an arc shape with a center located inside the main housing 100 and having a predetermined central angle. In one embodiment, the center of the main frame 110 and the center of the sub frame 120 may be formed at the same location.

The sub frame 120 is disposed to be partially covered by the discharge passage forming part 400 . That is, in the embodiment shown in FIG. 4 , the sub frame 120 is disposed to be covered by the discharge passage forming part 400 .

As will be described later, the discharge passage forming part 400 can be moved along the outer circumference of the main housing 100 . In the above embodiment, a part of the sub frame 120 may be covered by the discharge passage forming part 400, and the remaining part may be exposed to the outside. Accordingly, it may be said that at least a portion of the sub frame 120 covers the discharge passage forming part 400 .

The subframe 120 may be formed to have a constant curvature along its extending direction. In this case, the diameter of the cross section of the sub frame 120 may be larger than the diameter of the cross section of the main frame. Accordingly, the sub frame 120 may extend while covering a portion of the main frame 110, the first main end 111 and the second main end 112 in the illustrated embodiment radially outside.

The subframe 120 may extend while forming another part of the outer circumference of the main housing 100 . In the illustrated embodiment, each end of the extension direction of the subframe 120 is positioned closer to the front side than the center of the main housing 100 .

The sub frame 120 partially surrounds the sub flow space S.S. In the illustrated embodiment, the sub frame 120 partially surrounds the rear side, left side and right side of the sub flow space SS.

The sub frame 120 is disposed to be spaced apart from the main frame 110 . As described above, the space in which the sub frame 120 and the main frame 110 are spaced apart from each other may be defined as the sub outlet SD. The sub-discharge port (SD) may be formed in a portion where each end of the sub frame 120 and the main frame 110 are spaced apart from each other, respectively formed on the left and right sides in the illustrated embodiment.

A plurality of subframes 120 may be formed. The plurality of subframes 120 may each form a part of the outer circumference of the main housing 100 at different locations.

In the illustrated embodiment, the sub-frame 120 includes a first sub-frame 121 , a second sub-frame 122 and a third sub-frame 123 .

The first sub-frame 121 forms part of the sub-frame 120, the left part in the illustrated embodiment. In the illustrated embodiment, the first subframe 121 extends from the rear side in a counterclockwise direction by a predetermined length. The first subframe 121 may extend in an arc shape.

The first sub frame 121 is disposed to partially overlap the main frame 110 . Specifically, the first sub frame 121 is disposed to partially overlap the left portion of the main frame 110 in a radial direction.

The first sub-frame 121 together with the main frame 110 forms the sub discharge port SD. In the illustrated embodiment, the first sub-frame 121 may be spaced apart from the first main end 111, and a sub discharge port SD may be formed therebetween.

The first sub-frame 121 partially surrounds the sub-flow space S.S. In the illustrated embodiment, the first subframe 121 partially surrounds the left side of the sub flow space S.S located on the left side.

The first sub frame 121 may be surrounded by the discharge passage forming part 400 . In the illustrated embodiment, the first sub frame 121 may be surrounded by the first guide member 411 located on the left side.

In the illustrated embodiment, the first sub-frame 121 includes a first sub-end 121a.

The first sub-end 121a forms one end in the direction in which the first sub-frame 121 extends, a front side end in the illustrated embodiment. The first sub end 121a is spaced apart from the first main end 111 in a radial direction. Due to the above arrangement, a sub discharge port SD may be formed.

The first sub end 121a is arranged to overlap the main frame 110 and the first guide member 411 in the radial direction. In the embodiment shown in FIG. 4 , the first minor end 121a is located between the first main end 111 and the end of the first guide member 411 .

The first sub-frame 121 is continuous with the second sub-frame 122 through the third sub-frame 123 .

The second sub-frame 122 forms another part of the sub-frame 120, the right part in the illustrated embodiment. In the illustrated embodiment, the second sub-frame 122 extends clockwise from the rear side by a predetermined length. The second sub frame 122 may extend in an arc shape.

The second sub frame 122 is disposed to partially overlap the main frame 110 . Specifically, the second sub frame 122 is disposed to partially overlap the right portion of the main frame 110 in a radial direction.

The second sub-frame 122 together with the main frame 110 forms the sub discharge port SD. In the illustrated embodiment, the second sub-frame 122 may be spaced apart from the second main end 112, and a sub discharge port SD may be formed therebetween.

The second sub-frame 122 partially surrounds the sub-flow space S.S. In the illustrated embodiment, the second sub frame 122 partially surrounds the right side of the sub flow space S.S located on the right side.

The second sub frame 122 may be surrounded by the discharge passage forming part 400 . In the illustrated embodiment, the second sub-frame 122 may be surrounded by a second guide member 412 located on the right side.

In the illustrated embodiment, the second sub frame 122 includes a second sub end 122a.

The second sub end 122a forms one end in the direction in which the second sub frame 122 extends, a front side end in the illustrated embodiment. The second minor end 122a is spaced apart from the second main end 112 in a radial direction. Due to the above arrangement, a sub discharge port SD may be formed.

The second sub end 122a is arranged to overlap the main frame 110 and the second guide member 412 in the radial direction. In the embodiment shown in FIG. 4 , the second minor end 122a is positioned between the second major end 112 and the end of the second guide member 412 .

The second subframe 122 is continuous with the third subframe 123 .

The third sub-frame 123 forms the remaining part of the sub-frame 120, the rear side in the illustrated embodiment. In the illustrated embodiment, the third sub-frame 123 is positioned in the inner space of the main housing 100 and is rounded so as to be convex radially outward of the main housing 100 .

The third sub-frame 123 is arranged to overlap the main frame 110 in one direction, in the front-rear direction in the illustrated embodiment.

The third sub-frame 123 partially surrounds the main flow space MS. In the illustrated embodiment, the third sub-frame 123 surrounds the rear side of the main flow space MS.

The third sub-frame 123 is continuous with the partition member 130 .

The partition member 130 partitions the inner space of the main housing 100 into a plurality of spaces. Some of the plurality of spaces may be defined as the main flow space (MS), and the remaining part of the plurality of spaces may be defined as the sub flow space (S.S).

The main flow space (MS) is communicated with the outside by the main discharge port (MD). The sub flow space (S.S) communicates with the outside through the sub outlet (S.D). The main flow space MS and the sub flow space SS are physically separated by the partition member 130 and do not communicate with each other.

Therefore, the fluid flowing in the main flow space MS and the fluid flowing in the sub flow space SS may flow independently of each other inside the main housing 100 . In addition, each fluid flowing in each flow space (MS, S.S) may be mixed after being discharged to the outside of the main housing 100 through each discharge port (MD, SD). A detailed description thereof will be described later.

The partition member 130 is coupled to the main frame 110 and the sub frame 120, respectively. The partition member 130 extends between the main frame 110 and the sub frame 120 inside the main housing 100 .

In the illustrated embodiment, the partition member 130 includes a first partition member 131 and a second partition member 132 .

The first partition member 131 and the second partition member 132 are continuous with the main frame 110 and the sub frame 120, respectively, and divide the inner space of the main housing 100 into a plurality of pieces. In the illustrated embodiment, the first partition member 131 and the second partition member 132 extend in the front-rear direction.

The first partition member 131 is positioned close to the first sub frame 121 . In the illustrated embodiment, the first partition member 131 extends between the left end of the third sub frame 123 and the left portion of the main frame 110 . That is, the first partition member 131 is positioned biased toward the left side.

The first partition member 131 is disposed to partially surround the main flow space MS and the sub flow space SS. In the illustrated embodiment, the first partition member 131 is disposed to surround the left side of the main flow space MS and to surround the right side of the sub flow space SS formed on the left side.

Accordingly, it can be said that the first partition member 131 divides the main flow space MS and the left sub flow space SS.

The second partition member 132 is positioned close to the second sub frame 122 . In the illustrated embodiment, the second partition member 132 extends between the right portion of the main frame 110 at the right end of the third sub frame 123 . That is, the second partition member 132 is positioned biased to the right side.

The second partition member 132 is disposed to partially surround the main flow space MS and the sub flow space SS. In the illustrated embodiment, the second partition member 132 surrounds the right side of the main flow space SS and surrounds the left side of the sub flow space SS formed on the right side.

Accordingly, it can be said that the second partition member 132 divides the main flow space MS and the right sub flow space SS.

The sub-housing 200 forms another part of the exterior of the air blower 10 . The sub-housing 200 is coupled to one end of the main housing 100 in the height direction, an upper end in the illustrated embodiment. In the illustrated embodiment, the sub-housing 200 forms the upper side of the air blower 10 .

In the embodiment shown in FIG. 3 , the sub housing 200 may be integrally formed with the main housing 100 . Alternatively, the sub-housing 200 may be separately manufactured and combined with the main housing 100 .

In the illustrated embodiment, the sub-housing 200 and the main housing 100 do not communicate with each other. Alternatively, the interior of the sub housing 200 and the interior of the main housing 100 may be configured to communicate. In the above embodiment, the main discharge port MD and the sub discharge port SD may extend over the main housing 100 and the sub housing 200 as described above.

The sub-housing 200 is coupled to the discharge passage forming part 400 . Specifically, the sub-housing 200 movably supports the discharge passage forming part 400 . Various components for moving the discharge passage forming part 400 may be mounted in a space inside the sub-housing 200 .

The sub-housing 200 is combined with the main housing 100 and the discharge passage forming part 400 and may be provided in any shape capable of mounting various components therein. In the illustrated embodiment, the sub-housing 200 has a circular cross section and a cylindrical shape having a vertical height.

The shape of the sub-housing 200 may correspond to the shape of the main housing 100 . In the above embodiment, since the outer circumferential surfaces of the sub-housing 200 and the main housing 100 are positioned on the same surface, aesthetics can be improved.

In the illustrated embodiment, the sub-housing 200 includes an accommodation space 210, a sub-outer circumference 220, a sub-opening 230, a restraining member 240, and an inner cover 250.

The accommodating space 210 is a space formed inside the sub-housing 200 . Various components of the sub-housing 200 and various components of the discharge passage forming unit 400 may be mounted in the accommodation space 210 .

The accommodating space 210 may be formed in a shape corresponding to the outer shape of the sub-housing 200 . In the illustrated embodiment, the accommodating space 210 has a circular cross-section and is formed as a cylindrical space extending in the vertical direction.

The accommodation space 210 communicates with the outside. Due to the communication of the accommodating space 210 , some components of the discharge passage forming part 400 may be positioned outside but combined with other components accommodated in the accommodating space 210 .

The accommodating space 210 is defined surrounded by the sub outer periphery 220 .

The sub outer circumference 220 partially surrounds the accommodating space 210 . The sub outer circumference 220 forms a part of the exterior of the sub housing 200 . Accordingly, the sub outer circumference 220 may be defined as the outer surface or outer wall of the sub housing 200 .

The sub outer circumference 220 extends along the outer circumferential direction of the sub housing 200 . In the illustrated embodiment, the sub outer circumference 220 is circular with its center located in the accommodating space 210 . In one embodiment, the center may be formed at the same location as the center of the main housing 100.

The sub outer circumference 220 is partially surrounded by the discharge passage forming part 400 . In the embodiment shown in FIG. 5 , a part of the front side and the rear side of the left side of the sub outer circumference 220 are surrounded by the first guide member 411 . In addition, a part of the front side and the rear side of the right side of the sub outer circumference 220 are surrounded by the second guide member 412 .

A sub opening 230 is formed through the sub outer circumference 220 .

The sub-opening 230 communicates the accommodation space 210 with the outside. The discharge passage forming part 400 may pass through the sub-opening 230 and be combined with other components accommodated in the accommodation space 210 .

The sub opening 230 is formed through the sub outer circumference 220 . In the illustrated embodiment, the sub opening 230 is formed through the sub outer circumference 220 in a thickness direction, that is, along a radial direction.

The sub-opening 230 may extend along a direction in which the sub-outer circumference 220 extends. In the illustrated embodiment, since the sub outer circumference 220 has a circular shape, the sub opening 230 may extend in an arc shape whose center is located inside the accommodation space 210 .

The extension length of the sub-opening 230 may be changed according to the length of the coupling protrusions 411a and 412a provided in the discharge passage forming part 400 (see FIG. 5 ).

A plurality of sub-openings 230 may be formed. The plurality of sub-openings 230 are formed at different locations, and the first coupling protrusion 411a and the second coupling protrusion 412a may respectively pass therethrough. In the illustrated embodiment, the sub-opening 230 includes a first sub-opening 231 formed on a left rear side and a second sub-opening 232 formed on a right rear side.

The restricting member 240 limits the moving distance of the guide gear unit 440 of the discharge passage forming unit 400 . The restraining member 240 is accommodated in the accommodating space 210 and can limit the moving distance of the guide gear unit 440 in a form in contact with each end of the guide gear unit 440 .

The restraining member 240 is continuous with the sub outer circumference 220 . The restraining member 240 may extend from the sub outer circumference 220 toward the accommodation space 210 .

A plurality of restraining members 240 may be provided. The plurality of restraining members 240 may be coupled to the sub outer circumference 220 at different positions to limit the movement of the guide gear unit 440 .

In the illustrated embodiment, the constraining member 240 includes a first constraining member 241 coupled to the front side inner surface of the sub outer circumference 220 and a second constraining member 242 coupled to the rear side inner surface of the sub outer circumference 220. ) are provided, including two.

The first restraining member 241 is in contact with one side of the extension direction of the guide gear unit 440, the front end in the illustrated embodiment, and limits the movement of the guide gear unit 440 on the front side. The second restraining member 242 is in contact with the rear side end of the other side of the extension direction of the guide gear unit 440, in the illustrated embodiment, to limit the rearward movement of the guide gear unit 440.

In the illustrated embodiment, the first restraining member 241 extends toward the rear side and has a rear end portion having a circular cross section. In addition, the second restraining member 242 includes a plurality of first parts extending toward the front side and a second part extending between the front side ends of the plurality of first parts.

The shape of the first restraining member 241 may be changed according to the shape of the front side end of the guide gear unit 440 . The shape of the second restraining member 242 may be changed according to the shape of the rear side end of the guide gear unit 440 .

The inner cover 250 forms one side of the sub-housing 200, the upper side in the illustrated embodiment. The inner cover 250 is configured to cover the accommodation space 210 from the upper side.

The inner cover 250 may be formed to correspond to the shape of the accommodation space 210 . In the illustrated embodiment, the inner cover 250 has a circular cross section and is provided in a disk shape having a thickness in the vertical direction.

Although not shown, a hole (not shown) for supporting the shaft portion 420 of the discharge passage forming part 400 may be formed on the lower side of the inner cover 250, that is, on one side facing the accommodation space 210. .

The suction unit 300 sucks air from the outside of the air blower 10 and introduces it into the inner space of the main housing 100 . The suction part 300 is coupled to the other end in the height direction of the main housing 100, the lower end in the illustrated embodiment. The suction part 300 forms the remaining part of the air blower 10, the lower side in the illustrated embodiment.

The suction part 300 communicates with the main housing 100 . Outside air introduced through the inlet 300 flows through the main flow space MS or the sub flow space SS formed inside the main housing 100, and then passes through the main discharge port MD or the sub discharge port SD. It can be discharged to the outside again.

The suction part 300 may be formed in a shape corresponding to the main housing 100 . In the illustrated embodiment, since the main housing 100 is a cylindrical shape having a circular cross section, the suction unit 300 may also have a circular shape in its horizontal direction.

In one embodiment, the suction unit 300 may be rotatably coupled to the main housing 100 . In the above embodiment, the suction part 300 and the main housing 100 can be rotated relative to each other. To this end, a power member (not shown) such as a motor may be provided.

Although not shown, a fan member may be provided in the suction unit 300 . The fan member may provide a transfer force for introducing outside air into the inner space of the suction unit 300 .

In the illustrated embodiment, the suction unit 300 includes a base 310, a suction member 320 and a case 330.

The base 310 supports other components of the suction part 300 . As described above, the suction part 300 forms the lower side of the air blower 10, and the base 310 may be said to support other components of the air blower 10.

The base 310 is coupled to the suction member 320 . The base 310 supports the suction member 320 from the lower side.

The suction member 320 communicates with the outside and functions as a passage through which outside air flows into the air blower 10 .

Suction member 320 is supported by base 310 . In addition, a space communicating with the outside and the inside of the main housing 100 is formed inside the suction member 320 .

The suction member 320 is coupled to the case 330 . Specifically, the suction member 320 partially accommodates the case 330 accommodated in the lower side of the inner space of the main housing 100 and supports the case 330 .

The aforementioned fan member (not shown) may be accommodated inside the suction member 320 . As the fan member (not shown) operates, external air may be introduced into the suction member 320 .

In the illustrated embodiment, the suction member 320 includes a suction frame 321 and a suction opening 322 .

The suction frame 321 forms a part of the exterior of the suction member 320 . The suction frame 321 is a part where the suction part 300 is coupled to the outer circumference of the main housing 100 .

The suction frame 321 may be formed such that a diameter of its cross section increases in a direction toward the main housing 100 . That is, in the illustrated embodiment, the suction frame 321 is inclined radially outward from the lower side to the upper side. A suction frame 321 surrounds the space radially outwardly.

A space is formed inside the suction frame 321 . The space communicates with the outside and inside of the main housing 100 . In addition, the case 330 may be accommodated in the space.

A suction opening 322 is formed through the suction frame 321 .

The intake opening 322 communicates the interior space and the outside of the intake frame 321 . Outside air may be introduced into the inner space of the suction frame 321 through the suction opening 322 .

The suction opening 322 extends in one direction. In the illustrated embodiment, the suction opening 322 extends in the vertical direction. As described above, it will be understood that the suction frame 321 is inclined radially outward toward the upper side, and the suction opening 322 penetrating the suction frame 321 also extends in the same direction.

A plurality of suction openings 322 may be formed. The plurality of suction openings 322 may be spaced apart from each other and communicate with the inside and outside of the suction frame 321 at different locations. In the illustrated embodiment, the suction openings 322 are spaced apart from each other along the outer circumference of the suction frame 321 .

The case 330 functions as a passage through which the air introduced into the suction part 300 flows into the inner space of the main housing 100 . A hollow is formed inside the case 330 so that the inner space of the suction frame 321 and the inner space of the main housing 100 communicate with each other.

The case 330 is coupled to the main housing 100 . One side of the case 330 in the height direction, in the illustrated embodiment, the upper side is accommodated inside the main housing 100 and is not exposed to the outside. At this time, the one side, that is, the upper end of the case 330 may come into contact with the lower end of the partition member 130 extending inside the main housing 100 .

The case 330 is coupled to the suction frame 321. The case 330 is partially inserted into the inner space of the suction frame 321, the other side in the height direction, the lower side in the illustrated embodiment. Due to the above structure, the case 330 is not exposed to the outside.

The case 330 may have any shape that can satisfy the coupling structure. In the illustrated embodiment, the case 330 has a circular cross section like the main housing 100 and the suction frame 321, and is formed to have a vertical height.

In the illustrated embodiment, case 330 includes an outer case 331 and an inner case 332 .

The outer case 331 forms a radially outside of the case 330 . A hollow is formed through the outer case 331 to communicate the inner space of the suction frame 321 and the inner space of the main housing 100 . In addition, the inner case 332 may be accommodated in the hollow of the outer case 331 .

The hollow of the outer case 331 may be defined as an external through hole 331a. The external through hole 331a is defined as a space formed surrounded by the external case 331 . The external through hole (331a) is formed through the extension direction of the outer case 331, in the vertical direction in the illustrated embodiment.

Inner case 332 forms a radially inner side of case 330 . The inner case 332 is accommodated in the outer through hole 331a.

A hollow may be formed through the inside of the inner case 332 to communicate with the inner space of the suction frame 321, the inner space of the main housing 100, and the external through hole 331a, respectively.

The hollow of the inner case 332 may be defined as an inner through hole 332a. The inner through hole 332a is defined as a space formed surrounded by the inner case 332 . The inner through hole 332a is formed through the extension direction of the inner case 332, in the vertical direction in the illustrated embodiment.

The discharge passage forming unit 400 substantially serves to form various passages through which the air introduced into the air blower 10 is discharged to the outside.

The discharge passage forming part 400 is movably coupled to the main housing 100 . Specifically, the discharge passage forming part 4000 partially covers the outer periphery of the main housing 100, that is, the main frame 110 and the sub frame 120, and is coupled to the main housing 100.

In addition, the discharge passage forming part 400 is coupled to the main housing 100 to be reciprocally movable along the outer circumference of the main housing 100 . In the illustrated embodiment, since the main housing 100 has a cylindrical shape, it will be understood that the path of the discharge passage forming part 400 may be formed in an arc shape.

The discharge passage forming part 400 is movably coupled to the sub-housing 200 . The discharge passage forming part 400 may be moved along an arc-shaped path in a clockwise or counterclockwise direction by the operation of components accommodated in the accommodating space 210 of the sub-housing 200 .

The discharge passage forming unit 400 may adjust the degree to which the sub discharge port SD is opened. That is, as the discharge passage forming unit 400 is moved, the open area of the sub discharge port SD and the flow path formed by the air discharged from the sub discharge port SD may be adjusted. As a result, the flow of air discharged from the air blower 10 may be changed, and a detailed description thereof will be described later.

In the illustrated embodiment, the discharge passage forming portion 400 includes a guide member 410, a shaft portion 420, a drive gear portion 430, and a guide gear portion 440.

The guide member 410 is movably coupled to the main housing 100 and the sub housing 200 to adjust the degree of opening of the sub discharge port SD.

The guide member 410 partially covers the outer circumference of the main housing 100 and is coupled to the main housing 100 . Specifically, the guide member 410 covers a part of the rear side of the main frame 110 and the sub frame 120 and is coupled to the main housing 100 .

As described above, the guide member 410 may move along the outer circumference of the main housing 100 . Accordingly, as will be described later, when the guide member 410 is moved to the frontmost side, the guide member 410 may cover a portion of the main frame 110 and a portion of the sub frame 120 .

Accordingly, it can be said that the guide member 410 is disposed to surround at least a portion of each of the main frame 110 and the sub frame 120 .

The guide member 410 may be formed in a shape corresponding to the outer circumferential shape of the main housing 100 . In the embodiment shown in FIG. 4 , the guide member 410 has an arc shape with a center located inside the main housing 100 and having a predetermined central angle.

In the above embodiment, the main frame 110, the sub frame 120, the sub housing 200, and the guide member 410 of the main housing 100 may include portions having the same curvature.

In one embodiment, the size of the predetermined central angle of the guide member 410 may be formed to be more than a right angle. That is, the guide member 410 may be formed to cover more than 1/4 of the outer circumference of the left or right side of the main housing 100 . Due to the shape, the guide member 410 may be disposed while surrounding parts of the main frame 110 and the sub frame 120, respectively.

The guide member 410 extends in the direction in which the main housing 100 extends, in the illustrated embodiment, in the vertical direction. An upper end of the guide member 410 may extend to the sub-housing 200 . Also, the lower end of the guide member 410 may extend to the lower end of the sub discharge port SD.

Accordingly, as the guide member 410 moves, the sub discharge ports SD may be formed to have the same opening degree along the extending direction.

A plurality of guide members 410 may be provided. The plurality of guide members 410 may be coupled to the main housing 100 or the sub housing 200 at different positions. In the illustrated embodiment, the guide member 410 includes a first guide member 411 coupled to the main housing 100 or sub-housing 200 on the left side and the main housing 100 or sub-housing 200 on the right side. It includes a coupled second guide member 412.

In the embodiment shown in FIG. 5 , the first guide member 411 and the second guide member 412 are positioned at the rearmost side. As the driving gear unit 430 and the guide gear unit 440, which will be described later, operate, the first guide member 411 and the second guide member 412 cover the outer circumference of the main housing 100 or the sub-housing 200. It can be moved to the front side along the

The first guide member 411 and the second guide member 412 each include a first coupling protrusion 411a and a second coupling protrusion 412a.

The first coupling protrusion 411a is a portion where the first guide member 411 is coupled to the guide gear unit 440 . The first coupling protrusion 411a protrudes radially inward from the inner circumferential surface of the first guide member 411 .

The first coupling protrusion 411a is through-coupled to the first sub-opening 231 . The first coupling protrusion 411a is inserted into and coupled to a recess formed on the outer circumference of the first guide gear 441 of the guide gear unit 440 . Accordingly, the first guide member 411 may move together with the first guide gear 441 .

The second coupling protrusion 412b is a portion where the second guide member 412 is coupled to the guide gear unit 440 . The second coupling protrusion 412a protrudes radially inward from the inner circumferential surface of the second guide member 412 .

The second coupling protrusion 412a penetrates and is coupled to the second sub-opening 232 . The second coupling protrusion 412a is inserted into and coupled to a recess formed on the outer circumference of the second guide gear 442 of the guide gear unit 440 . Accordingly, the second guide member 412 may move together with the second guide gear 442 .

In the illustrated embodiment, the cross-sectional area of the first coupling protrusion 411a and the second coupling protrusion 412a is reduced in a radially inward direction. This is for easy coupling between the first coupling protrusion 411a and the second coupling protrusion 412a and the sub-opening 230 and the guide gear unit 440 .

The shape of the first coupling protrusion 411a and the second coupling protrusion 412a is any shape capable of stably coupling the first guide member 411 and the second guide member 412 to the guide gear unit 440. can be

The shaft portion 420 functions as a central shaft for rotating the driving gear portion 430 . The shaft portion 420 is coupled to the sub-housing 200 .

Specifically, the shaft portion 420 is accommodated in the accommodation space 210 and rotatably supports the drive gear portion 430 . The shaft portion 420 may extend in the height direction of the sub-housing 200, or in the vertical direction in the illustrated embodiment. As described above, a structure for supporting the shaft portion 420 may be formed on the inner cover 250 covering the accommodation space 210 from the upper side.

A power member (not shown) such as a motor may be connected to the shaft unit 420 . When the power member (not shown) is operated, the shaft portion 420 and the driving gear portion 430 connected to the shaft portion 420 may be rotated.

Shaft portion 420 may be provided with a plurality. The plurality of shaft parts 420 may be spaced apart from each other and rotatably support the plurality of drive gear parts 430 , respectively. In the illustrated embodiment, the shaft portion 420 includes a first shaft 421 coupled to the first driving gear 431 on the left side and a second shaft 422 coupled to the second driving gear 432 on the right side. So, two are provided.

Any one of the plurality of shaft parts 420 may be connected to the power member (not shown). In the illustrated embodiment, the first shaft 421 located on the left side may be coupled to the power member (not shown) to receive rotational force. In the above embodiment, it will be understood that the second driving gear 432 is configured to transmit the rotational force of the first driving gear 431 to the second guide gear 442 .

The drive gear unit 430 is coupled to the shaft unit 420 and the guide gear unit 440, respectively, and transmits the rotational force generated by the power member (not shown) to the guide gear unit 440.

The drive gear unit 430 is accommodated in the accommodating space 210 . The drive gear unit 430 may be rotatably supported by the shaft unit 420 .

The drive gear unit 430 is coupled with the guide gear unit 440 . Rotation of the drive gear unit 430 may be transmitted to the guide gear unit 440 . As can be seen from the name, in the illustrated embodiment, the drive gear unit 430 may be gear-coupled with the guide gear unit 440.

A plurality of driving gear units 430 may be provided. The plurality of drive gear parts 430 may be coupled to different shaft parts 420 and guide gear parts 440, respectively. In the illustrated embodiment, the plurality of driving gear units 430 are provided with two including a first driving gear 431 on the left and a second driving gear 432 on the right.

The first driving gear 431 is rotatably supported on the first shaft 421 . The first driving gear 431 may be gear-coupled with the first guide gear 441 and transmit its rotational force to the first guide gear 441 .

The second driving gear 432 is rotatably supported on the second shaft 422 . The second driving gear 432 may be gear-coupled with the second guide gear 442 and transmit its rotational force to the second guide gear 442 .

The first driving gear 431 and the second driving gear 432 may be coupled to each other. In the illustrated embodiment, the first driving gear 431 and the second driving gear 432 may be gear-coupled with each other and rotated in different directions.

Accordingly, the first guide gear 441 and the second guide gear 442 are also rotated in different directions, so that both can be moved to the front side or both can be moved to the rear side. As a result, the flow rate and direction of the sub flow path S.F formed while air passes through the sub outlet SD may be diversified.

Although not shown, an additional gear may be provided between the first driving gear 431 and the second driving gear 432 . In the above embodiment, the rotation direction and speed of the first driving gear 431 and the second driving gear 432 are adjusted, so that the sub flow path S.F can be additionally diversified.

A guide gear unit 440 is positioned radially outside the driving gear unit 430 .

The guide gear unit 440 is rotated according to the rotation of the driving gear unit 430 to move the guide member 410 .

The guide gear unit 440 is accommodated in the accommodation space 210 . Specifically, the guide gear unit 440 is accommodated in the accommodating space 210 to be movable along the sub-outer circumference 220 radially inside the sub-outer circumference 220 .

As described above, the sub outer circumference 220 is formed in an arc shape. Accordingly, it will be understood that the path of the guide gear unit 440 is also formed in an arc shape.

The length of the movement path of the guide gear unit 440 may be limited by the restraining member 240 . In the illustrated embodiment, the movement distance of the front side of the guide gear unit 440 may be limited by the first restraining member 241 . The guide gear unit 440 may be moved forward only to a position where its front end comes into contact with the first restraining member 241 . To this end, the shape of the front side end of the guide gear unit 440 may be complementary to the shape of the first restraining member 241 .

Also, in the illustrated embodiment, the movement distance of the rear side of the guide gear unit 440 may be limited by the second restraining member 242 . The guide gear unit 440 may move rearward only to a position where its rearward end comes into contact with the second restraining member 242 . To this end, the shape of the rear side end of the guide gear unit 440 may be complementary to the shape of the second restraining member 242 .

The guide gear unit 440 is coupled to the guide member 410 . Specifically, the coupling protrusions 411a and 412a of the guide member 410 are inserted into grooves formed on the outer circumferential surface of the guide gear unit 440, and the guide gear unit 440 and the guide member 410 may be coupled. . The guide gear unit 440 and the guide member 410 may move together.

The guide gear unit 440 is coupled to the drive gear unit 430 . Specifically, the guide gear unit 440 may be gear-coupled with the driving gear unit 430 to receive rotational force of the driving gear unit 430 . The guide gear unit 440 may be moved along an arc-shaped path in a clockwise or counterclockwise direction along the outer circumference 220 by the rotational force.

The guide gear unit 440 may be formed in a shape corresponding to the shape of the sub outer circumference 220 . In the illustrated embodiment, the guide gear unit 440 is formed in an arc shape whose center is located inside the main housing 100 or the sub-housing 200. In one embodiment, the curvature of the guide gear unit 440 may be formed at least partially equal to the curvature of the sub outer circumference 220 .

The guide gear unit 440 may extend by a predetermined length along the extension direction of the sub outer circumference 220 . At this time, the guide gear unit 440 may extend so that the size of the central angle is equal to or greater than a right angle.

A plurality of guide gear units 440 may be provided. The plurality of guide gear parts 440 may be coupled to the plurality of guide members 410 and the plurality of driving gear parts 430 , respectively.

In the illustrated embodiment, the guide gear unit 440 is coupled to the first guide member 411 and the first drive gear 431, the first guide gear 441 and the second guide member 412, and the second drive Two are provided, including the second guide gear 442 coupled with the gear 432.

The first guide gear 441 is located on the left side of the accommodating space 210 . The first guide gear 441 is positioned between the first guide member 411 and the first driving gear 431, respectively, adjacent to each other. The first guide gear 441 is coupled to the first guide member 411 and the first drive gear 431, respectively.

In the illustrated embodiment, the first guide gear 441 includes a first toothed portion 441a and a first outer peripheral portion 441b.

The first tooth portion 441a is formed on an inner circumferential surface of the first guide gear 441 and gear-coupled with the first drive gear 431 . The first tooth portion 441a extends along the inner circumferential surface of the first guide gear 441 . The first tooth portion 441a includes a plurality of concave portions and a plurality of convex portions alternately continuous along the inner circumferential surface of the first guide gear 441 .

The first outer circumferential portion 441b is defined as the outer circumference or outer circumferential surface of the first guide gear 441 . The first outer circumference 441b is positioned adjacent to the inner circumferential surface of the sub outer circumference 220 . A groove into which the first coupling protrusion 411a is inserted is recessed in the first outer circumferential portion 441b.

The second guide gear 442 is located on the right side of the accommodating space 210 . The second guide gear 442 is positioned between the second guide member 412 and the second drive gear 432, respectively, adjacent to each other. The second guide gear 442 is coupled to the second guide member 412 and the second driving gear 432, respectively.

The second tooth portion 442a is formed on the inner circumferential surface of the second guide gear 442 and gear-coupled with the second driving gear 432 . The second tooth portion 442a extends along the inner circumferential surface of the second guide gear 442 . The second tooth portion 442a includes a plurality of concave portions and a plurality of convex portions alternately continuous along the inner circumferential surface of the second guide gear 442 .

The second outer circumferential portion 442b is defined as an outer circumference or an outer circumferential surface of the second guide gear 442 . The second outer circumference 442b is positioned adjacent to the inner circumferential surface of the sub outer circumference 220 . A groove into which the second coupling protrusion 412a is inserted is recessed in the second outer circumferential portion 442b.

A description of the main flow path M.F and the sub flow path S.F formed by the air blower 10 according to an embodiment of the present invention described above will be described later.

The air blower 20 according to another embodiment of the present invention may suck external air and discharge it to the outside again. At this time, the air blower 20 may discharge air in various directions and flow rates according to the user's request. At this time, the above process may be performed without moving the main body of the air blower 20 itself.

Furthermore, a separate filter module (not shown) may be coupled to the air blower 20 according to the present embodiment. The filter module (not shown) may purify the air introduced into the air blower 20 and then discharge it again. Accordingly, the air blower 20 according to the present embodiment may be referred to as an “air purifier”.

Compared to the air blower 10 according to the above-described embodiment, the air blower 20 according to the present embodiment includes the main housing 500, the sub-housing 600, the suction part 700, and the discharge passage forming part ( 800), there are some differences in the structure.

Accordingly, in the following description, overlapping descriptions will be excluded and differences from the air blower 10 according to the above-described embodiment will be mainly described.

Hereinafter, the configuration of the air blower 20 according to the present embodiment will be described in detail with reference to FIGS. 6 to 10 .

In the illustrated embodiment, the air blower 20 includes a main housing 500, a sub housing 600, a suction part 700, and a discharge passage forming part 800.

In the illustrated embodiment, the main housing 500 includes a main frame 510, a sub frame 520 and a partition member 530.

The main housing 500 of this embodiment has some differences in the shapes of the main frame 510 and the sub frame 520 compared to the main housing 100 of the above-described embodiment.

Referring to FIG. 9 , the main frame 510 forms the front side of the main housing 500, but the first main end 511 and the second main end 512 are closer to the third sub-frame 523. is located That is, in the illustrated embodiment, the main frame 510 is formed to extend more rearward.

In one embodiment, each end of the main frame 510, that is, the first main end 511 and the second main end 512 may be located closer to the rear than the center of the main housing 500 in the front-back direction. .

In addition, each end of the sub frame 520 , that is, the first sub end 521a and the second sub end 522a may also be positioned close to the rear side of the main housing 500 in the front-rear direction. In the illustrated embodiment, the first minor end 521a and the second minor end 522a are positioned closer to the rear than the first major end 511 and the second major end 512 .

Therefore, the sub discharge port SD formed between the main ends 511 and 512 of the main frame 510 and the respective end parts 521a and 522a of the sub frame 520 is also an air blower according to the above-described embodiment ( 10) can be located more rearward.

Structures and functions of other components of the main housing 500 are similar to those of the main housing 100 according to the above-described embodiment, and thus descriptions thereof will be replaced with the above-described descriptions.

In the illustrated embodiment, the sub-housing 600 includes a receiving space 610, a sub-outer circumference 620, a sub-opening 630, a restraining member 640, and an inner cover 650.

When compared with the sub-housing 200 of the above-described embodiment, the sub-housing 600 according to the present embodiment has some differences in the structure of the sub-outer circumference 620 and the position of the sub-opening 630 .

Referring to FIG. 10 , the sub outer circumference 620 according to the present embodiment is coupled to the discharge passage forming part 800 at a rear side compared to the sub outer circumference 220 according to the above-described embodiment.

Accordingly, it will be appreciated that the positions of the first sub-opening 631 and the second sub-opening 632 through which the first coupling protrusion 811a and the second coupling protrusion 812a respectively pass are also changed accordingly.

Structures and functions of other components of the sub-housing 600 are similar to those of the sub-housing 200 according to the above-described embodiment, and thus descriptions thereof will be replaced with the above-described descriptions.

In the illustrated embodiment, the suction unit 700 includes a base 710, a suction member 720 and a case 730.

When compared with the suction unit 300 according to the above-described embodiment, the suction unit 700 according to the present embodiment has some differences in the structure and configuration of the case 730.

6 to 8 , the case 730 according to the present embodiment is partially exposed to the outside. The case 730 is positioned between the suction member 720 and the main housing 500 . The upper side of the case 730 is coupled to the main housing 500, and the lower side of the case 730 is coupled to the suction member 720.

In the illustrated embodiment, the case 730 includes a first outer case 731 , a second outer case 732 , an inner case 733 and a filter accommodating member 734 .

The first outer case 731 forms a part of the outer side of the case 730 . The lower side of the first outer case 731 is coupled to the suction member 720 .

Inside the first outer case 731, a first external through hole 731a is penetrated in the height direction, in the illustrated embodiment, in the vertical direction. The first external through hole 731a communicates the inner space of the suction member 720 with the inner space of the main housing 500 and accommodates the inner case 733 and the filter accommodating member 734 .

An opening may be formed on one side of an outer circumferential surface of the first outer case 731 . A filter accommodating member 734 may be retractably coupled to the opening.

The second outer case 732 forms the remaining part of the outer side of the case 730 . The lower side of the second outer case 732 is coupled to the first outer case 731 and the upper side is coupled to the main housing 500 .

Inside the second outer case 732, second external through-holes 732a are formed through in the height direction, in the illustrated embodiment, in the vertical direction. The second external through hole 732a communicates the inner space of the suction member 720 and the inner space of the main housing 500 and accommodates the inner case 733 .

That is, the first external through hole 731a and the second external through hole 732a communicate with each other.

Inner case 733 forms a radially inner side of case 730 . The inner case 733 is accommodated in the first external through hole 731a or the second external through hole 732a.

A hollow may be formed through the inside of the inner case 733 to communicate with the inner space of the suction frame 721, the inner space of the main housing 100, and the external through-holes 731a and 732a, respectively.

The hollow of the inner case 733 may be defined as an inner through hole 733a. The inner through hole 733a is defined as a space formed surrounded by the inner case 733 . The inner through hole 733a is formed through the extension direction of the inner case 733, in the vertical direction in the illustrated embodiment.

The filter accommodating member 734 accommodates a filter member (not shown) that purifies air introduced into the suction member 720 . A hollow may be formed inside the filter accommodating member 734 to form a space in which a filter member (not shown) is accommodated. The hollow may be defined by being surrounded by an inner circumferential surface of the filter accommodating member 734 .

The filter accommodating member 734 may be retractably inserted into the first outer case 731 . In an embodiment in which a filter member (not shown) is provided, the air sucked into the inner space of the suction member 720 may pass through the filter member (not shown), be filtered, and then flow into the inner space of the main housing 500. there is.

The filter accommodating member 734 may be coupled to the first outer case 731 by being moved in a horizontal direction, in a front-back direction in the illustrated embodiment. The filter accommodating member 734 may be coupled with the first outer case 731 in any direction and manner in which a user can easily insert and withdraw it.

Alternatively, any member for improving the quality of discharged air, such as a humidification module and a sterilization module, may be accommodated in the filter accommodating member 734 .

Structures and functions of other components of the suction unit 700 are similar to those of the suction unit 300 according to the above-described embodiment, and thus descriptions thereof will be replaced with the above description.

In the illustrated embodiment, the discharge passage forming part 800 includes a guide member 810, a shaft part 820, a driving gear part 830, and a guide gear part 840.

When compared with the discharge passage forming part 400 according to the above-described embodiment, there is a partial difference in the shape of the guide member 810 in the discharge passage forming part 800 according to the present embodiment.

That is, referring to FIGS. 6 to 10, the guide member 810 according to the present embodiment extends by a shorter length along the outer circumference of the main housing 500 than the guide member 410 of the above-described embodiment. . In one embodiment, the size of the central angle of the guide member 810 may be less than a right angle.

Therefore, in this embodiment, the angle at which the guide member 810 can be moved, that is, the movement distance can be increased compared to the guide member 410 according to the above-described embodiment.

In addition, in the guide member 810 according to the present embodiment, the coupling protrusions 811a and 812a are positioned more rearward than the coupling protrusions 411a and 412a according to the above-described embodiment. Accordingly, the position of the sub-opening 630 is also changed as described above.

Structures and functions of other components of the discharge passage forming unit 800 are similar to those of the discharge passage forming unit 800 according to the above-described embodiment, and thus descriptions thereof will be replaced with the above description.

The air blowers 10 and 20 according to each embodiment of the present invention described above may include the discharge passage forming parts 400 and 800 to form passages of various shapes. The process of forming the discharge passage by the air blowers 10 and 20 according to each embodiment of the present invention can be explained using the Coanda Effect.

Specifically, the main flow path (MF), which is the flow of air discharged from the main discharge port (MD), flows along the inner surface of the main frame (110, 510) formed round to be convex outward, and the discharge speed, discharge amount, and straightness are enhanced. can

In addition, the sub flow path S.F, which is the flow of air discharged from the sub discharge port SD, flows along the outer surfaces of the main frames 110 and 510 and the sub frames 120 and 520, which are also rounded to be convex outward. Speed, discharge amount and straightness can be enhanced.

Furthermore, the discharge direction of the sub-passage S.F may be formed in various ways by changing the area and shape of the sub-discharge port SD according to the operation of the discharge passage forming parts 400 and 800 .

Hereinafter, the main flow path M.F and the sub flow path S.F formed by the air blowers 10 and 20 according to each embodiment of the present invention will be described in detail with reference to FIGS. 11 to 16 .

In the following description, the first position P1 refers to a position where the guide members 410 and 810 are most spaced apart from the main discharge port MD, that is, a position where the guide members 410 and 810 are moved to the rearmost side. Since the main discharge port MD is formed through the main frames 110 and 510, the first position P1 may also be defined as a position most spaced apart from the main frames 110 and 510.

Also, the third position P3 means a position where the guide members 410 and 810 are closest to the main discharge port MD, that is, a position where the guide members 410 and 810 are moved most forward. Since the main discharge port MD is formed through the main frames 110 and 510, the second position P2 may also be defined as a position closest to the main frames 110 and 510.

In addition, the second position (P2) is an arbitrary position between the first position (P1) and the third position (P3), the guide members (410, 810) compared to the first position (P1) the main discharge port (M.D. ), or a position in which the guide members 410 and 810 are moved apart from the main outlet M.D. compared to the third position P3. As described above, the relative positional relationship with the main discharge port M.D. can be understood as the relative positional relationship with the main frames 110 and 510.

Hereinafter, referring to FIGS. 11 to 13 , a change in a flow path according to a position change of the guide member 410 of the air blower 10 according to an embodiment of the present invention is shown. Also, referring to FIGS. 14 to 16 , a change in a flow path according to a position change of the guide member 810 of the air blower 20 according to another embodiment of the present invention is shown.

As described above, the air blowers 10 and 20 according to each embodiment have some differences in their structures, but the air flow process is the same. Accordingly, the flow of air in the air blowers 10 and 20 according to each embodiment will be described below.

First, the air discharged through the main outlet (MD) flows along the inner circumferential surface of the main frame 110 formed to be rounded inward.

Accordingly, the main flow path M.F formed by the air discharged through the main outlet M.D. has increased flow rate, flow rate, and straightness. That is, the main flow path M.F is intensively discharged toward the radially outer side of the main outlet M.D., toward the front side in the illustrated embodiment.

Therefore, in the following description, the change of the sub-passage S.F according to the change in the position of the guide members 410 and 810 and the change of the entire passage will be mainly described.

Referring to FIGS. 11 and 14 , a state in which the guide members 410 and 810 are moved to the first position P1 is illustrated.

In this state, the area covered by the guide members 410 and 810 on the sub discharge port SD is minimized. That is, the open area of the sub discharge port SD is maximized. Also, the area where the guide members 410 and 810 cover the main frames 110 and 510 is minimized.

At this time, the length of the portion passing through the space between the main frames 110 and 510 and the guide members 410 and 810 among the portions of the sub-passage S.F is also minimized. Therefore, the Coanda effect of the sub flow path S.F discharged from the sub discharge port SD is smaller than that of the other two positions P2 and P3. As a result, the sub flow passage S.F is mainly formed along the direction in which the sub discharge port SD extends.

Meanwhile, an angle between a virtual straight line extending the main flow path M.F and a virtual straight line extending the sub flow path S.F may be defined as the discharge angle a. The discharge angle a may be minimized when the guide members 410 and 810 are at the first position P1. That is, the main flow path M.F. and the sub flow path S.F. are most spaced apart from each other and proceed close to parallel.

Accordingly, the main passage M.F and the sub passage S.F discharged from the air blowers 10 and 20 may travel to a relatively wider space than the other two positions P2 and P3.

Referring to FIGS. 12 and 15 , a state in which the guide member 410 is moved to the second position P2 is illustrated.

In this state, the area covered by the guide members 410 and 810 is a value between the minimum and the maximum. That is, the open area of the sub discharge hole SD becomes an area between the minimum area (ie, in the first state P1) and the maximum area (ie, in the third state P3). In addition, the area covered by the guide members 410 and 810 on the main frames 110 and 510 also has a value between minimum and maximum.

At this time, the length of the portion passing through the space between the main frames 110 and 510 and the guide members 410 and 810 among the portions of the sub flow path S.F is one length between the minimum and the maximum. Accordingly, the Coanda effect of the sub flow path S.F discharged from the sub discharge port SD is greater than that at the first position P1 but smaller than that at the third position P3.

As a result, a part of the sub flow path S.F is formed partly along the direction in which the sub discharge port S.D extends, and the other part proceeds along the outer circumference of the main frames 110 and 510 to join the main flow path M.F. do.

Accordingly, the discharge angle a is increased compared to when the guide members 410 and 810 are positioned at the first position P1, but when the guide members 410 and 810 are positioned at the third position P3. can be reduced compared to That is, the main flow path M.F. and the sub flow path S.F are spaced apart by the maximum and minimum size.

Accordingly, the main flow path (MF) and the sub flow path (S.F) discharged from the air blowers (10, 20) are relatively narrow compared to the first position (P1), but relatively wide compared to the third position (P3). can proceed with

In addition, the flow rate and speed of air flowing along the main flow path M.F. are enhanced by the other part of the sub flow path S.F. As a result, more air than in the first state P1 can quickly flow to the space located on the extension line of the main flow path M.F.

Referring to FIGS. 13 and 16 , a state in which the guide members 410 and 810 are moved to the third position P3 is illustrated.

In this state, the area covered by the guide members 410 and 810 over the sub discharge port SD is maximized. That is, the open area of the sub discharge port SD is minimized. In addition, the area where the guide members 410 and 810 cover the main frames 110 and 510 is also maximized.

At this time, the length of the portion passing through the space between the main frames 110 and 510 and the guide members 410 and 810 of the sub-passage S.F portion becomes maximum. Accordingly, the Coanda effect of the sub flow path S.F discharged from the sub discharge port SD is larger than that of the other two positions P1 and P2.

As a result, most of the sub-passage S.F. proceeds along the outer periphery of the main frames 110 and 510 and joins the main passage M.F.

Accordingly, the discharge angle a is maximized, and the main flow path M.F. and the sub flow path S.F proceed closest to each other.

Accordingly, the main flow path M.F and the sub flow path S.F discharged from the air blowers 10 and 20 are directed toward a space located on the extension line of the main flow path M.F, compared to the other two positions P1 and P2. can be intensively pursued.

As a result, the air discharged from the air blowers 10 and 20 may be intensively discharged in the direction of movement of the narrow space (ie, the main flow path M.F).

At this time, the position of the front side of the guide members 410 and 810, that is, the position of the guide members 410 and 810 at the third position P3 may be limited by the first restraining member 241. In addition, the position of the rear side of the guide members 410 and 810, that is, the position of the guide members 410 and 810 at the first position P1 may be limited by the second restraining member 242.

Meanwhile, as the guide members 410 and 810 move from the first position P1 to the third position P3, the inner circumferential surface of the guide member 410 and 810 partially overlaps the outer circumferential surface of the main frame 110 and 510. can be contacted. Accordingly, the size of the space between the guide members 410 and 810 and the main frames 110 and 510 is reduced, so that the speed of air flow forming the sub-passage SD can be increased.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the present invention described in the claims below. You will understand that you can.

10: air blower according to an embodiment
20: air blower according to another embodiment
100: main housing
110: main frame
111: first main end
112: second main end
120: sub frame
121 First part frame
121a: first part end
122: second part frame
122a: second part end
123: Part 3 frame
130: partition member
131: first partition member
132: second partition member
200: sub housing
210: accommodation space
220: sub outsourcing
230: sub opening
231: first sub-opening
232: second sub-opening
240: constraining member
241: first constraining member
242: second restraining member
250: inner cover
300: inlet
310: base
320: suction member
321: suction frame
322 suction opening
330: case
331: outer case
331a: external through hole
332 inner case
332a: internal through hole
400: discharge passage forming unit
410: guide member
411: first guide member
411a: first coupling protrusion
412: second guide member
412a: second coupling protrusion
420: shaft part
421: first axis
422: second axis
430: drive gear unit
431: first driving gear
422: second driving gear
440: guide gear unit
441: first guide gear
441a: first tooth
441b: first outer periphery
442: second guide gear
442a: second tooth
442b: second outer periphery
500: main housing
510: main frame
511 first main end
512 second main end
520: sub frame
521 First part frame
521a: first part end
522 Second sub frame
522a: second part end
523: Part 3 frame
530: partition member
531: first partition member
532: second partition member
600: sub housing
610: accommodation space
620: sub outsourcing
630: sub opening
631: first sub-opening
632: second sub-opening
640: constraining member
641: first constraining member
642: second restraining member
650: inner cover
700: inlet
710: base
720: suction member
721: suction frame
722 intake opening
730: case
731 first outer case
731a: first external through hole
732 second outer case
732a: second external through hole
733a: internal through hole
733 inner case
734: filter accommodating member
800: discharge passage forming unit
810: guide member
811: first guide member
811a: first coupling protrusion
812: second guide member
812a: second coupling protrusion
820: shaft part
821: first axis
822: second axis
830: drive gear unit
831: first driving gear
822: second drive gear
840: guide gear unit
841: first guide gear
841a: first tooth
841b: first outer periphery
842: second guide gear
842a: second tooth
842b: second outer periphery
MS: main flow space
SS: sub flow space
MD: main outlet
SD: sub outlet
MF: Main Euro
SF: Sub Euro
P1: first position
P2: second position
P3: third position
a: discharge angle

Claims (17)

a main housing having a space in which fluid flows, extending in one direction, and having a main outlet communicating with the outside and a sub outlet physically spaced apart from the main outlet through which the main outlet is formed;
a sub-housing coupled to one end of the main housing; and
A discharge passage forming part partially covering an outer circumference of the main housing and rotatably coupled to the sub-housing;
The discharge passage forming part,
a guide member extending in the one direction and disposed to cover the sub discharge port in a radial direction;
a guide gear unit coupled to the guide member and rotatably accommodated in the inner space of the sub-housing; and
A driving gear part gear-coupled to the guide gear part and rotatably accommodated in the inner space of the sub-housing,
When the drive gear unit rotates, the guide member is rotated in one of clockwise and counterclockwise directions along the outer circumference of the main housing, so that the flow of the fluid discharged from the sub discharge port is controlled.
air blower. According to claim 1,
The main housing,
a main frame surrounding a part of the space of the main housing and through which the main discharge port is formed;
A subframe surrounding another part of the space of the main housing and spaced apart from the main frame in a radial direction;
The sub discharge port,
The main frame and the sub frame are formed apart from each other,
air blower. According to claim 2,
The main frame extends in a direction toward the sub frame, and its end is positioned radially inside the sub frame so as to overlap the sub frame in a radial direction,
The sub discharge port is defined as a space formed between the outer circumference of the main frame and the inner circumference of the sub frame.
air blower. According to claim 2,
The main frame and the sub frame are formed to have an arc-shaped cross section,
The diameter of the cross section of the sub frame is larger than the diameter of the cross section of the main frame,
air blower. According to claim 2,
The guide member is formed to have an arc-shaped cross section,
The cross section of the main frame is formed in an arc shape having a different curvature than the cross section of the guide member,
When the guide member is moved toward the main discharge port, the guide member contacts the main frame.
air blower. According to claim 2,
The guide member is rotated along the outer circumference of the sub frame,
a first position spaced apart from the main frame and opening the sub outlet; and
It is located adjacent to the main frame and is moved between a second position in which the open area of the sub discharge port is reduced.
air blower. According to claim 2,
Inside the main housing,
It extends along the one direction and is partially surrounded and defined by each of the main frame and the sub frame to form a plurality of flow spaces in which the fluid flows.
air blower. According to claim 7,
The flow space is
a main flow space partially surrounded by the main frame and the sub frame and communicating with the main discharge port; and
A sub flow space partially surrounded by the main frame and the sub frame, in communication with the sub outlet, and physically spaced apart from the main flow space,
air blower. According to claim 8,
The main housing,
A partition member extending in the one direction and partitioning the space of the main housing into a plurality of flow spaces;
The partitioning member,
a first partition member positioned biasedly in the space of the main housing to partition a part of the sub flow space and the main flow space; and
A second partition member disposed in the space of the main housing to the other side to partition the remaining part of the sub flow space and the main flow space,
air blower. According to claim 2,
When the guide member is positioned to be spaced apart from the main frame and moved to a first position in which the sub discharge port is opened,
A discharge angle between the fluid discharged from the main discharge port and the fluid discharged from the sub discharge port is reduced;
When the guide member is positioned adjacent to the main frame and moved to a second position where the area in which the sub discharge port is opened is reduced,
The discharge angle between the fluid discharged from the main discharge port and the fluid discharged from the sub discharge port is increased.
air blower. According to claim 1,
The guide gear part,
a tooth portion formed radially inside the driving gear portion and gear-fitted; and
It is formed radially outside and includes an outer periphery that is coupled to the guide member and moves together.
air blower. According to claim 11,
The sub-housing,
a sub outer periphery surrounding the space; and
It is formed through the sub outer circumference and includes a sub opening through which the outer circumference of the guide gear part or the guide member passes.
air blower. According to claim 12,
The sub opening extends by a predetermined length along the direction in which the sub outer circumference extends,
air blower. According to claim 1,
A plurality of sub discharge ports are formed, and the plurality of sub discharge ports are disposed on opposite sides of the main housing with the main discharge port interposed therebetween;
A plurality of guide members are provided, and the plurality of guide members are configured to open or close the plurality of sub discharge ports, respectively.
air blower. According to claim 14,
The main housing,
a main frame enclosing a portion of the space of the main housing, having an arc-shaped cross section, and having the main discharge port penetrated therethrough;
A subframe surrounding another part of the space of the main housing, having an arc shape in cross section, and spaced apart from the main frame in a radial direction;
The sum of the extension lengths of the plurality of guide members is greater than half of the sum of the extension lengths of the main frame and the sub frame,
The guide member is disposed to overlap the main frame and the sub frame along the radial direction, respectively.
air blower. a main housing having a space in which fluid flows, extending in one direction, and having a main outlet communicating with the outside and a sub outlet physically spaced apart from the main outlet through which the main outlet is formed;
a sub-housing coupled to one end of the main housing and having a space physically separated from the space of the main housing therein;
a suction part coupled to the other end of the main housing, the inside of which communicates with the space and the outside of the main housing, respectively, to filter fluid introduced from the outside; and
A discharge passage forming part partially covering an outer circumference of the main housing and rotatably coupled to the sub-housing;
The discharge passage forming part,
a guide member extending in one direction and covering the sub discharge port in a radial direction;
a guide gear unit coupled to the guide member and rotatably accommodated in the space of the sub-housing; and
Including a driving gear part gear-coupled with the guide gear part and rotatably accommodated in the space of the sub-housing,
When the drive gear unit rotates, the guide member is rotated in one of clockwise and counterclockwise directions along the outer circumference of the main housing, so that the flow of the fluid discharged from the sub discharge port is controlled.
air blower. According to claim 16,
the suction part,
an outer case through which a plurality of suction openings communicating with the outside are formed; and
Including a filter member for filtering (filtering) the fluid introduced through the intake opening,
air blower.

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