KR102407570B1 - Flow generator - Google Patents

Abstract

A flow generating device according to an embodiment of the present invention includes: an upper fan for generating a first air flow; an upper fan housing accommodating the upper fan; an upper cover disposed to surround the upper fan and the upper fan housing; an upper locking mechanism for guiding selective coupling between the upper cover and the upper fan housing; a lower fan provided below the upper fan and generating a second air flow close to the first air flow; a lower fan housing accommodating the lower fan; a lower cover disposed to surround the lower fan and the lower fan housing; and a lower locking mechanism for guiding selective coupling between the lower cover and the lower fan housing, wherein the upper locking mechanism can constrain or release the upper cover and the upper fan housing in a circumferential direction by a first operation, 2, the upper cover and the upper fan housing can be constrained or released in the vertical direction, and the lower locking mechanism can constrain or release the upper cover and the upper fan housing in the circumferential direction by a first operation, , by the second operation, the upper cover and the lower fan housing may be constrained or released in the vertical direction.

Description

flow generator {Flow generator}

An embodiment of the present invention relates to a flow generator.

In general, a flow generating device is understood as a device that generates an air flow by driving a fan, and blows the generated air flow to a location desired by a user. Commonly referred to as "the fan". Such a flow generating device is mainly disposed in an indoor space such as a home or an office, and may be used to provide coolness and comfort to a user in hot weather such as summer.

In relation to such a flow generating device, the prior art techniques as follows have been proposed in the prior art.

[Prior Literature 1]

1. Publication number (disclosure date): 10-2012-0049182 (May 16, 2012)

2. Title of invention: Axial fan

[Prior Literature 2]

1. Publication number (disclosure date): 10-2008-0087365 (October 1, 2008)

2. Title of invention: electric fan

The apparatus according to the preceding documents 1 and 2 includes a support placed on the ground, a leg extending upwardly from the support, and a fan coupled to an upper side of the leg. The fan is configured as an axial fan. When the fan is driven, air is sucked from the rear of the device toward the fan, and the sucked air passes through the fan and is discharged to the front of the device.

According to Prior Documents 1 and 2, the fan is exposed to the outside. Although the device according to Prior Document 2 includes a safety cover surrounding the outside of the fan for safety reasons, there is still a risk that a user's finger passes through the safety cover and touches the fan. In addition, when there is a large amount of dust in the space in which the device is placed, the dust passes through the safety cover and accumulates in the fan, causing a problem in that the device is easily dirty.

In addition, according to the device according to the preceding documents 1 and 2, since the air flow is simply generated and supplied to the user, when the device is used in a space with a high degree of pollution, it can rather harm the user's health.

And, in an environment where the temperature of the installation space is rather low, such as in winter, the use of the device according to the preceding documents 1 and 2 is not necessary, and the device must be stored until the summer of the next year. Accordingly, there is a problem in that the usability of the device is lowered.

SUMMARY OF THE INVENTION An object of the present invention is to provide a flow generator capable of discharging conditioned or purified air in order to solve the above problems.

Another object of the present invention is to provide a flow generating device in which the air treated by the upper module and the lower module can be combined while being discharged.

Another object of the present invention is to provide a flow generating device that is easy to assemble or disassemble for cleaning, etc.

Another object of the present invention is to provide a flow generating device capable of easily releasing an electrical connection when a module is separated.

Another object of the present invention is to provide a flow generating device in which the fan is not exposed to the outside.

Another object of the present invention is to provide a flow generating device in which air sucked in from the upper and lower portions, respectively, can be discharged together through the central portion.

Another object of the present invention is to provide a flow generating device in which an upper module and a lower module rotate together to discharge air in various directions.

Another object of the present invention is to provide a flow generating device that is aesthetically clean without accumulating dust on the fan by minimizing the area exposed to the outside of the fan for flowing the internal air.

In order to achieve the above object, a flow generating device according to an embodiment of the present invention includes an upper fan for generating a first air flow; an upper fan housing accommodating the upper fan; an upper cover disposed to surround the upper fan and the upper fan housing; an upper locking mechanism for guiding selective coupling between the upper cover and the upper fan housing; a lower fan provided below the upper fan and generating a second air flow close to the first air flow; a lower fan housing accommodating the lower fan; a lower cover disposed to surround the lower fan and the lower fan housing; and a lower locking mechanism for guiding selective coupling between the lower cover and the lower fan housing, wherein the upper locking mechanism can constrain or release the upper cover and the upper fan housing in a circumferential direction by a first operation, 2, the upper cover and the upper fan housing can be constrained or released in the vertical direction, and the lower locking mechanism can constrain or release the upper cover and the upper fan housing in the circumferential direction by a first operation, , by the second operation, the upper cover and the lower fan housing may be constrained or released in the vertical direction.

In addition, the upper locking mechanism and the lower locking mechanism may include a first locking mechanism for guiding the first operation; and a second locking mechanism for guiding the second operation, wherein the first locking mechanism includes: a latch receiving part provided on the upper cover and the lower cover; a first latch inserted into the latch receiving part; and a second latch movably coupled to the upper fan housing and the lower fan housing, wherein the second latch moves in a vertical direction to restrain or release the latch receiving portion.

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In addition, the first locking mechanism may further include a locking protrusion protruding from the latch receiving portion, and the first operation may include: a first locking operation in which the second latch and the locking protrusion engage; and a first releasing operation in which the latching between the second latch and the locking protrusion is released.

The second locking mechanism may include: a hook protruding from one surface of the upper fan housing and the lower fan housing; and a hook coupling part provided on the upper cover and the lower cover in a shape corresponding to the hook.

In addition, the hook is characterized in that it has a shape bent in one direction. In addition, the hook and the hook coupling unit may include at least one of the upper cover and the upper fan housing sliding in the circumferential direction, and at least one of the lower cover and the lower fan housing sliding in the circumferential direction. can be plugged in

In addition, the second operation may include a second engaging operation in which the hook coupling part is fitted to the hook; and a second releasing operation in which the hook coupling part moves away from the hook.

In addition, the upper engaging mechanism and the lower engaging mechanism include a contact portion capable of electrically disconnecting according to restraint or release of the upper cover and the upper fan housing and restraint or release of the lower cover and the lower fan housing. .

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Meanwhile, in another aspect, in order to achieve the above object, a method for separating a flow generating device according to an embodiment of the present invention includes: a first module including an upper fan and an upper cover disposed to surround the upper fan housing; a second module coupled to the first module and including a lower fan and a lower fan housing accommodating the lower fan; and a third module coupled to the second module and including a base placed on the ground, a leg extending from the base, and a lower cover coupled to the leg, wherein the first module is a first separation step of separating from the second module; and a second separation step of separating the second module from the third module, wherein in the first separation step and the second separation step, the first locking mechanism constraining the circumferential direction between the modules is pressed in the vertical direction. The restraint can be released and the restraint can be released by rotation of the second locking mechanism that restrains the vertical direction between the modules.

In addition, the first separation step may include: releasing the circumferential restraints of the upper cover and the upper fan housing by pressing the first locking mechanism; and releasing the upper and lower restraints of the upper cover and the upper fan housing by the second locking mechanism by circumferential rotation of the upper cover.

In addition, the upper cover may be separated upward to expose the upper fan and the upper fan housing to the outside.

In addition, the second separation step includes the step of releasing the circumferential restraints of the lower cover and the lower fan housing by pressing the first locking mechanism.

In addition, the direction of pressing the first locking mechanism in the first separation step is opposite to the direction of pressing the first locking mechanism in the second separation step.

In addition, the second separation step further includes the step of releasing the vertical restraints between the lower cover and the lower fan housing by the second locking mechanism by the circumferential rotation of the lower fan housing.

In addition, when at least one of the first locking mechanism and the second locking mechanism releases the restraint, electrical disconnection between the modules is made.

According to the present invention, an air flow can be generated by driving the fans provided in the upper module and the lower module, respectively, so that the amount of air discharged to the user can be increased.

According to the present invention, air is sucked in the upper and lower portions of the main body, respectively, so that the blowing capacity can be increased.

According to the present invention, since it is divided into three modules and can be assembled or disassembled, the difficulty of assembling or disassembling is simplified and easy, and there is an effect of improving manageability such as cleaning.

According to the present invention, since the contact for electrical connection is cut when the module for disassembly is separated, the risk of an accident due to the operation of the internal configuration can be prevented. That is, there is an effect that the safety of the user is secured.

According to the present invention, the air rotating in the circumferential direction while passing through the fan can be easily discharged in the radial direction by the air guide device, so that the discharged air can be concentrated.

According to the present invention, since the upper module and the lower module can discharge air while rotating, the air can be discharged in various directions.

According to the present invention, dust does not accumulate on the fan inside the flow generating device, and there is an effect that the appearance is neat.

1 is a perspective view showing the configuration of a flow generating device according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along II-II′ of FIG. 1 .
3 is a cross-sectional view showing the configuration of an upper module and a lower module according to the first embodiment of the present invention.
4 is an exploded perspective view showing the configuration of the upper module according to the first embodiment of the present invention.
5 is a view showing the configuration of the upper fan housing and the upper fan according to the first embodiment of the present invention.
6 is a perspective view showing the configuration of the upper fan housing according to the first embodiment of the present invention.
7 is a bottom perspective view showing the configuration of the upper fan housing according to the first embodiment of the present invention.
8 is a view showing a coupling state of the upper cover and the upper fan housing according to the first embodiment of the present invention.
9 and 10 are views showing the configuration and operation of the first locking mechanism of the upper cover according to the first embodiment of the present invention.
11 and 12 are views showing the configuration and operation of the second locking mechanism of the upper cover according to the first embodiment of the present invention.
13 is an exploded perspective view showing the configuration of a lower module according to the first embodiment of the present invention.
14 is a view showing the configuration of the lower fan housing and the lower fan according to the first embodiment of the present invention.
15 is a perspective view showing the configuration of a lower fan housing according to the first embodiment of the present invention.
16 is a bottom perspective view showing the configuration of the lower fan housing according to the first embodiment of the present invention.
17 is a perspective view showing the configuration of the upper orifice and the lower fan according to the first embodiment of the present invention.
18 is a bottom perspective view showing the configuration of an upper orifice and a lower fan according to the first embodiment of the present invention.
19 is a perspective view showing a state in which the rotation motor is installed in the upper orifice according to the first embodiment of the present invention.
20 is a perspective view showing the configuration of a heater assembly according to the first embodiment of the present invention.
21 is an exploded perspective view showing the configuration of the base according to the first embodiment of the present invention.
22 and 23 are views illustrating a state in which air passing through a fan is discharged from the upper module according to the first embodiment of the present invention.
24 and 25 are views illustrating a state in which air passing through a fan is discharged from the lower module according to the first embodiment of the present invention.
26 is a view showing the flow of air discharged from the upper module and the lower module according to the first embodiment of the present invention.
27 is a cross-sectional view showing a fixed part (F) and a rotating part (R) of the flow generating device according to the first embodiment of the present invention.
28 is a view showing a connection part for assembling and disassembling the flow generating device according to the first embodiment of the present invention.
29 and 30 are views showing a method of disassembling the flow generating device according to the first embodiment of the present invention.

The present invention will become more apparent by describing preferred embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the embodiments described herein are illustratively shown to aid understanding of the invention, and the present invention may be implemented with various modifications different from the embodiments described herein. In addition, in order to help understanding of the invention, the accompanying drawings are not drawn to scale, but dimensions of some components may be exaggerated.

(Example 1)

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

[main body]

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

[No. 1 and 2 suction part]

The suction units 21 and 23 include a first suction unit 21 provided at an upper portion of the main body 20 and a second suction unit 23 provided at a lower portion of the body 20 . The air sucked in through the first suction unit 21 may flow downward and be discharged to the central portion of the body 21 . Also, the air sucked in through the second suction unit 23 may flow upward and be discharged to the central portion of the main body 21 . The "central part" of the main body 21 may mean a central part based on the vertical direction of the main body 21 .

In addition, the first suction unit 21 may be referred to as an upper suction unit, and the second suction unit 23 may be referred to as a lower suction unit/

[1st and 2nd discharge part]

The discharge units 25 and 27 may be disposed in the central portion of the main body 20 . A first discharge unit 25 through which the air sucked in the first suction unit 21 is discharged and a second discharge unit through which the air sucked in the second suction unit 23 is discharged are provided in the discharge units 25 and 27 . A discharge unit 27 is included. The first discharge unit 25 is located above the second discharge unit 27 .

In addition, the first discharge unit 25 discharges air in a direction toward the second discharge unit 27 , and the second discharge unit 27 discharges air in a direction toward the first discharge unit 25 . can be ejected. In other words, the first air flow discharged from the first discharge unit 25 and the second air flow discharged from the second discharge unit 27 may flow close to each other.

The air discharged from the first discharge unit 25 and the air discharged from the second discharge unit 27 may flow in a lateral or radial direction of the body 20 . A flow path through which the air discharged from the first discharge unit 25 flows is referred to as a “first discharge path 26”, and a flow path through which the air discharged from the second discharge unit 27 flows is referred to as a “second discharge path”. It may be called "discharge flow path 28". In addition, the first and second discharge passages 26 and 28 may be combined to be referred to as a “discharge passage”.

In addition, the first discharge unit 25 may be referred to as an upper discharge unit, and the second discharge unit 27 may be referred to as a lower discharge unit.

[Direction Definition]

define the direction 1 and 2 , a vertical direction may be referred to as an “axial direction” or a “vertical direction”, and a horizontal direction perpendicular to the axial direction may be referred to as a “radial direction”.

[leg]

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

The leg 30 includes a leg body 31 coupled to the base 50 and extending upward. The leg 30 further includes leg extensions 33 and 35 extending upward from the leg body 31 . In the leg extension parts 33 and 35 , a first leg extension part 33 extending in one direction from the leg body 31 and a second leg extension part 35 extending in the other direction from the leg body 31 . ) is included. The first and second leg extensions 33 and 35 may be coupled to a lower portion of the main body 20 .

For example, the leg body 31 and the first and second leg extensions 33 and 35 may have a “Y” shape. However, the shape of the leg body 30 and the first and second leg extensions 33 and 35 may not be limited thereto.

For example, the leg extension may consist of three or more. In addition, the leg extension may constitute a trivet type support.

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

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

<Configuration of upper module>

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

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

[Upper fan and upper fan housing]

The upper module 100 includes an upper fan 130 generating an air flow and an upper fan housing 150 in which the upper fan 130 is installed.

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

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

[First air treatment device]

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

The ionizer 179 may be installed in the ionizer mounting part 168 provided in the upper fan housing 150 . The ionizer mounting part 168 is provided on the guide wall 153 . The ionizer 179 may be installed on the ionizer mounting part 168 and exposed to the first fan passage 138a. Accordingly, the ionizer 179 may act on the air passing through the upper fan 130 to perform a sterilization function.

[Upper Motor]

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

[Locking part]

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

The upper locking part 175 may provide a fixing force so that the upper motor 170 is fixed to the upper fan 130 through rotation in one direction, and fixing the upper motor 170 through rotation in the other direction. can also be turned off.

[Upper Cover]

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

The size of the cover outlet 125 may be larger than the size of the cover inlet 121 . Accordingly, the upper cover 120 may have a conical shape with an open upper end and an open lower end. With this configuration, the air that has passed through the upper fan 130 can be easily discharged through the first discharge unit 25 while gradually expanding in the circumferential direction.

[display cover]

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

[First pre-filter]

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

[Top cover and top cover support part]

The upper module 100 further includes a top cover support part 103 coupled to an upper side of the display cover 110 and a top cover 101 placed on an upper side of the top cover support part 103 . The top cover support part 103 may protrude upward of the display cover 110 . It may be understood that the space between the top cover support part 103 and the display cover 110 forms the first suction part 21 .

The central part of the top cover support part 103 is coupled to the central part of the display cover 110 , and the bottom surface of the top cover support part 103 extends from the central part of the top cover support part 103 to the outside radially. can According to the configuration of the top cover support part 103 , the air sucked through the first suction part 21 is directed toward the cover grill 112 of the display cover 110 along the bottom surface of the top cover support part 103 . can be a guide

An input unit capable of inputting a user's command may be provided at an upper portion of the top cover 101 . And, inside the top cover 101, a display PCB may be installed.

[Upper air guide]

The upper module 100 has an upper air guide 180 provided below the upper fan housing 150 and for guiding the air passing through the upper fan housing 150 to the first discharge passage 26 . is further included. The upper air guide 180 is configured to support the upper fan housing 150 . In addition, the upper fan housing 150 includes a first guide coupling part 151b (refer to FIG. 6 ) coupled to the upper air guide 180 . A predetermined fastening member may be fastened to the first housing fastening part 183 of the upper air guide 180 through the first guide coupling part 151b.

The upper air guide 180 has a hollow plate shape. In detail, the upper air guide 180 has a central portion 180a into which the upper motor 170 is inserted, a rim portion 180b forming an outer circumferential surface of the upper air guide 180, and the central portion 180a. A guide extension portion 180c extending in an outer radial direction toward the edge portion 180b is included.

The guide extension portion 180c may extend from the central portion 180a toward the edge portion 180b to be inclined downward or to be rounded downward. According to this configuration, the air discharged downward from the upper fan housing 150 can easily flow outwardly of the main body 20 .

[Detailed configuration of upper fan]

5 is a view showing the configuration of an upper fan housing and an upper fan according to an embodiment of the present invention, FIG. 6 is a perspective view showing the configuration of an upper fan housing according to an embodiment of the present invention, and FIG. 7 is an embodiment of the present invention It is a bottom perspective view showing the configuration of an upper fan housing according to an example.

5 to 7 , in the upper module 100 according to an embodiment of the present invention, an upper fan 130 generating an air flow and the upper fan 130 are supported and the upper fan 130 is provided. An upper fan housing 150 surrounding at least a portion of an outer circumferential surface is included.

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

The upper fan 130 further includes a side plate portion 135 provided on an upper side of the plurality of blades 133 . The side plate part 135 performs a function of fixing the plurality of blades 133 . Lower ends of the plurality of blades 133 may be coupled to the main plate 131 , and upper ends thereof may be coupled to the side plate part 135 .

[Housing plate of upper fan housing]

In the upper fan housing 150 , a housing plate 151 supporting the lower side of the upper fan 130 and a hub 131a of the upper fan 130 are seated at the center of the housing plate 151 . A hub seat 152 is included. The hub seating part 152 may protrude upward from the housing plate 151 to correspond to the shape of the hub 131a.

[Guide Wall]

The upper fan housing 150 further includes a guide wall 153 that protrudes upward from the housing plate 151 and is disposed to surround at least a portion of an outer circumferential surface of the upper fan 130 . The guide wall 153 may extend from the upper surface of the housing plate 151 to be round in the circumferential direction.

[1st Fan Euro]

A first fan flow path 138a through which air passing through the upper fan 130 flows is formed between the guide wall 153 and at least a portion of an outer peripheral surface of the upper fan 130 . The first fan flow path 138a may be understood as an air flow path flowing in a circumferential direction. That is, the air introduced in the axial direction of the upper fan 130 is discharged in the radial direction of the upper fan 130 and is guided by the guide wall 153 in the circumferential direction along the first fan passage 138a. as it rotates and moves.

The cross-sectional area of the first fan passage 138a may be configured to gradually increase in the rotational direction of the air. That is, the first fan passage 138a may be formed to have a spiral shape. This can be called "spiral flow". Due to this flow, the flow resistance of the air passing through the upper fan 130 may be reduced, and noise generated from the upper fan 130 may be reduced.

[First inclined part]

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

The downward inclination direction may correspond to an air flow direction in the first fan passage 138a.

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

By the configuration of the first inclined portion 154, the flow cross-sectional area of the air may gradually increase with respect to the flow direction of the air.

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

[2nd Fan Euro]

In a state in which the upper cover 120 is coupled to the upper fan housing 150 , between a portion of an outer peripheral surface of the upper fan 130 and an inner peripheral surface of the upper cover 120 , the first fan flow path 138a A second fan passage 138b located on the downstream side may be formed. The second fan passage 138b may extend from the first fan passage 138a in a circumferential direction through which air flows. Accordingly, the air passing through the first fan passage 138a may flow through the second fan passage 138b.

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

[Second inclined part]

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

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

According to the configuration of the second inclined portion 154, the flow cross-sectional area of the air gradually increases with respect to the flow direction of the air.

In addition, the second inclined portion 156 has the advantage of being able to disperse the impact applied by the flow of air rotating in the circumferential direction colliding with the other end of the guide wall 153, thereby reducing the noise generated. The first inclined portion 154 and the second inclined portion 156 form both ends of the guide wall 153 . And, the first inclined portion 154 is provided in a region between the first fan passage 138a and the second fan passage 138b, and the second inclined portion 156 is the second fan passage ( 138b) and the flow guide unit 160 may be provided in the region. In this way, the first and second inclined portions 154 and 156 are provided in the boundary region where the air flow is switched, so that the air flow ability can be improved.

[Flow guide part]

The upper fan housing 150 further includes a flow guide unit 160 for guiding the flow of air passing through the second fan passage 138b. The flow guide part 160 is provided to protrude upward from the upper surface of the housing plate 151 .

In addition, the flow guide part 160 may be disposed on the outer surface of the guide wall 153 . By the arrangement of the flow guide unit 160 , the air flowing in the circumferential direction while passing through the first and second fan passages 138a and 138b can be easily introduced into the flow guide unit 160 . . The flow guide part 160 includes a guide body 161 extending downwardly in the flow direction of the air, that is, in the circumferential direction. That is, the guide body 161 includes a round surface or an inclined surface.

An air flow path is formed inside the flow guide part 160 . In detail, an inlet 165 through which air passing through the second fan passage 138b is introduced is formed at the front end of the flow guide 160 based on the air flow direction. The inlet 165 may be understood as an open space. The guide body 161 may extend from the inlet 165 to an inclined downward direction toward the upper surface of the housing plate 151 .

[Incision]

A cutout 151a is formed in the housing plate 151 . The cutout 151a is understood as a portion in which at least a portion of the housing plate 151 penetrates in the vertical direction. The inlet 165 may be positioned above the cutout 151a.

The inlet 165 may define the first outlet 25 together with the cutout 151a. The first discharge part 25 directs the air flow existing on the upper side of the housing plate 151 , that is, the air flowing through the first and second fan passages 138a and 138b to the lower side of the housing plate 151 . It can be understood as an outlet for discharging. Accordingly, the air flowing through the second fan passage 138b may flow to the lower side of the housing plate 151 through the first discharge unit 25 .

[First discharge guide part]

A first discharge guide part 158 is provided on the bottom surface of the housing plate 151 to guide the air flow discharged through the first discharge part 25 in a radial direction. The first discharge guide part 158 may protrude downward from the bottom surface of the housing plate 151 and may extend radially outward from the central portion of the housing plate 151 . In addition, the first discharge guide part 158 may be disposed on an exit side of the first discharge part 25 .

In the housing plate 151, a plate depression 158a that is depressed downward is formed. The protruding shape of the first discharge guide portion 158 may be realized by the plate depression portion 158a. For example, the first discharge guide portion 158 may be configured by a method of forming the plate depression portion 158a by recessing a portion of the housing plate 151 downward.

The first discharge guide part 158 may be formed so that an outer circumferential surface of the air discharged through the first discharge part 25 has a curved surface in both directions so as to change the flow path by minimizing the flow loss.

The air flow discharged through the first discharge unit 25 has a rotating property, and when it meets the first discharge guide unit 158 , the direction is changed in the radial direction by the first discharge guide unit 158 . can be emitted. Of course, together with the first discharge guide part 158 , the upper air guide 180 may also guide the air flow in the radial direction.

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

[The first locking mechanism of the upper cover, the latch assembly]

8 is a view showing a coupling state between the upper cover and the upper fan housing according to the first embodiment of the present invention, and FIGS. 9 and 10 are the configuration of the first locking mechanism of the upper cover according to the first embodiment of the present invention. and an action thereof, and FIGS. 11 and 12 are views showing the configuration and action of the second locking mechanism of the upper cover according to the first embodiment of the present invention.

8, 9 and 10 , the upper cover 120 according to the first embodiment of the present invention may be detachably provided from the flow generating device 10 . In detail, the upper module 100 may include a locking mechanism capable of selectively engaging the upper cover 120 with respect to the upper fan housing 150 in the circumferential direction and in the vertical direction.

The locking mechanism includes latch assemblies 177a and 177b, a hook 157b, and a hook coupling portion 127. Here, the latch assemblies 177a and 177b are called a first locking mechanism, and the hook 157b and the hook coupling part 127 are called a second locking mechanism.

First, the first locking mechanism will be described in detail.

The upper fan housing 150 is provided with a latch coupling portion 157a to which the latch assemblies 177a and 177b are coupled. The latch coupling part 157a is provided on the edge of the housing plate 151 and may protrude upward from the upper surface of the housing plate 151 .

The latch assemblies 177a and 177b include a first latch 177a inserted into the upper cover 120 and a second latch 177b movably coupled to the latch coupling part 157a. The first and second latches 177a and 177b may be coupled by an elastic member. In addition, the second latch 177b is understood as a latch operated by a user, and may be referred to as a “latch switch”.

[Latch receiving part]

The upper cover 120 includes a latch receiving portion 128 into which the first latch 177a is inserted. The latch receiving part 128 is provided on the inner peripheral surface of the upper cover 120 and may have an open lower end into which the first latch 177a can be inserted.

[stumbling block]

The upper cover 120 is provided with a locking protrusion 128a through which the second latch 177b can be locked. The locking protrusion 128a may be provided to protrude downward from the lower portion of the latch receiving portion 128 . For example, a plurality of the locking protrusions 128a may be provided on the lower edge of the latch receiving part 128 .

[Latch recessed part]

A latch recessed portion 177c is provided in the second latch 177b. The latch recessed portion 177c is configured to be recessed downward from the upper portion of the second latch 177b. When the second latch 177b moves upward, the locking protrusion 128a is inserted into the latch recessed portion 177c to be locked. When the locking protrusion 128a is inserted, the second latch 177b is elastically deformed to guide the locking protrusion 128a to be inserted into the latch recessed portion 177c. And, when the insertion of the locking protrusion 128a is completed, the second latch 177b may be restored to be engaged with the locking protrusion 128a.

[Action of Latch Assembly]

When the second latch 177b is pressed once, the engagement with the locking protrusion 128a is made, and when it is pressed again, the engagement with the locking projection 128a can be released.

In detail, when the user moves the second latch 177b upward by pressing the lower portion of the second latch 177b, the second latch 177b may be caught by the locking protrusion 128a. At this time, the second latch 177b is inserted into the upper fan housing 150 , that is, protruded upward from the housing plate 151 . Accordingly, the movement of the upper cover 120 in the circumferential direction can be prevented.

That is, since the latch assemblies 177a and 177b are constrained or released in the vertical direction, the upper cover 120 can be fixed so as not to move in the circumferential direction.

In this state, when the second latch 177b is pressed once again, the second latch 177b is released from the locking projection 128a and moves downward by the restoring force of the elastic member, so that the housing It is in a state protruding downward of the plate 151 . Also, the upper cover 120 may be in a detachable state from the flow generating device 10 . (The first module to be described later is separated from the second and third modules)

In this state, the power applied to the flow generating device 10 may be cut off. Accordingly, even when the upper cover is removed during operation of the flow generating device 10 , the operation of the upper fan 130 is stopped, so that use stability can be improved. In this regard, a detailed description of the electrical connection and disconnection will be described later.

In addition, since the upper cover 120 can be separated or coupled to the flow generating device 10 only by a simple manipulation of the second latch 177b, ease of use can be improved.

[Second locking mechanism of upper cover]

11 and 12 , in the upper module 100 , the upper cover 120 moves in the circumferential direction with respect to the upper fan housing 150 to selectively engage in the vertical direction. A second locking mechanism may be included.

The second locking mechanism may include a hook 157b and a hook coupling part 157b.

The hook 157b may have a shape that protrudes from the upper surface of the housing plate 151 and is bent in one direction, for example, a “L” shape. A hook coupling part 127 having a shape corresponding to the hook 157b is provided on the upper cover 120 . The hook coupling part 127 may be provided on the inner circumferential surface of the upper cover 120 and may be disposed to be seated on the upper surface of the housing plate 151 .

That is, the upper cover 120 may slide in the circumferential direction until the hook 157 and the hook coupling part 127 are coupled. And in a state in which the upper cover 120 and the upper fan housing 150 are coupled, the hook coupling part 127 may be inserted between the upper surface of the housing plate 151 and the upper part of the hook 157b. have.

A fastening groove 127a is formed in the hook coupling part 127, and a hook protrusion 157c is provided in the hook 157b. For example, the fastening groove 127a may be formed to be depressed downwardly from the top of the hook coupling part 127, and the hook projection 157c may be provided to protrude downward from the upper bottom surface of the hook 157b. have.

While the upper cover 120 is rotating, the hook protrusion 157c is inserted into the fastening groove 127a, so that the upper cover 120 and the upper fan housing 150 can be stably coupled. .

[Operation of hook and hook coupling part]

By inserting the upper cover 120 on the outside of the upper fan housing 150 , the hook coupling part 127 may be seated on the upper surface of the housing plate 151 . And, when the upper cover 120 is rotated clockwise or counterclockwise, the hook coupling part 127 rotates while being inserted between the upper surface of the housing plate 151 and the upper part of the hook 157b. have. That is, the hook may be caught between the hook 157b and the hook coupling part 127 .

Due to this engaging action, the upper cover 120 can be prevented from being separated upwardly or downwardly from the upper fan housing 150 .

That is, since the hook 157a and the hook coupling part 127b are constrained or released in the circumferential direction, the upper cover 120 can be fixed so as not to move in the vertical direction. Accordingly, the second locking mechanism may be understood as a locking mechanism in the vertical direction of the upper cover 120 .

[Effect of the locking mechanism]

As such, the upper cover 120 is connected to the upper fan housing ( 150) can be stably bound. In addition, the upper cover 120 can be easily separated from the upper fan housing 150 .

That is, the locking mechanism can stably guide the selective coupling between the upper cover 120 and the upper fan housing 150 .

In addition, when the upper cover 120 is separated from the flow generating device 10 , the upper fan housing 150 and the upper fan 130 may be exposed to the outside. In addition, the exposed upper fan housing 150 and the upper fan 130 may be cleaned.

In addition, in a state in which the flow generating device 10 is operated, the upper fan housing 150 and the upper fan 130 are shielded by the upper cover 120 to prevent a safety accident and have a beautiful appearance. can be done

Also, since the upper cover 120 can be separated by simply manipulating the latch assemblies 177a and 177b, the cleaning convenience of the upper fan housing 150 or the upper fan 130 can be improved.

It should be noted in advance that the description of the coupling structure of the upper cover 120 can be equally applied to the coupling structure of the lower cover 290 to be described later.

<Configuration of sub-module>

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

[Lower fan and lower fan housing]

3 and 8 together, in the lower module 200 according to the embodiment of the present invention, a lower fan 230 generating an air flow and a lower fan housing 220 in which the lower fan 130 is installed This is included. The lower fan 230 may include a centrifugal fan that sucks in air in an axial direction and discharges it in a radial direction. For example, the lower fan 230 may include a sirocco fan.

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

[lower motor]

The lower module 200 further includes a lower motor 236 connected to the lower fan 230 to provide a driving force. A lower motor shaft 236a is provided under the lower motor 236 . The lower motor shaft 236a may extend downward from the lower motor 236 . In addition, the lower motor 236 may be disposed above the lower fan housing 220 , and the lower motor shaft 236a may be disposed to pass through the lower fan housing 220 and the lower fan 230 . have. In addition, the lower fan 230 is provided with a shaft coupling portion 234 (refer to FIG. 13 ) to which the lower motor shaft 236a is coupled.

[Locking part]

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

The lower locking part 239 may provide a fixing force so that the lower motor 236 is fixed to the lower fan 230 through rotation in one direction, and the upper motor 236 is fixed through rotation in the other direction. can also be turned off.

[Lower cover]

The lower module 200 further includes a lower cover 290 disposed to surround the lower fan 230 and the lower fan housing 220 . In detail, the lower cover 290 includes a cover inlet 291a that forms an open lower end and into which air sucked through the second suction unit 23 flows. In addition, the lower cover 290 further includes a cover discharge portion 291b having an open upper end. The air passing through the lower fan 230 may flow to the second discharge passage 28 through the cover discharge portion 291b.

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

In addition, the lower cover 290 includes an orifice coupling portion 292a and a hook coupling portion 292b. This will be described later.

[Protection member]

The lower module 200 further includes a protection member 294 provided under the lower cover 290 to block heat generated from the heater assembly 260 . The protection member 294 may have a substantially disk shape. The protection member 294 may be made of a steel material that does not burn due to heat. By the protection member 294 , the heat is blocked from being transmitted to the second pre-filter 295 , and accordingly, damage to the second pre-filter 295 can be prevented.

[Second pre-filter]

The lower module 200 further includes a second pre-filter 295 provided under the protection member 294 . The second pre-filter 295 may include a filter frame 296 and a filter member 297 coupled to the filter frame 296 . Foreign substances in the air sucked through the second suction unit 23 may be filtered by the second pre-filter 295 . It may be understood that the lower space portion of the second pre-filter 295 forms the second suction portion 23 .

[Lower air guide]

The lower module 200 further includes a lower air guide 210 provided on the upper side of the lower fan housing 220 and for guiding the air passing through the lower fan housing 220 . The lower air guide 210 has a hollow plate shape. In detail, the lower air guide 210 has a central portion 210a into which the lower motor 236 is inserted, a rim portion 210b forming an outer circumferential surface of the lower air guide 210, and the central portion 210a. A guide extension portion 210c extending in an outer radial direction toward the edge portion 210b is included.

The guide extension portion 210c may extend from the central portion 210a toward the edge portion 210b to be inclined upward or to be rounded upward. According to this configuration, the air discharged upward from the lower fan housing 220 through the second discharge unit 27 is guided outward of the main body 20 to flow into the second discharge passage 28 . have.

[PCB device]

A plurality of parts may be installed on the upper surface of the guide extension part 210c. The plurality of components includes a PCB device in which a main PCB 215 for controlling the flow generating device 10 is provided. In addition, the PCB device further includes a regulator 216 for stably supplying power supplied to the flow generating device 10 . By the regulator 216 , power of a constant voltage can be supplied to the flow generating device 10 even when the voltage or frequency of the input power is changed.

[Communication module]

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

[LED device]

The plurality of components further includes an LED device. The LED device may constitute a display unit of the flow generating device 10 .

The LED device includes an LED PCB 218 on which an LED is installed and an LED cover 219 provided on the radially outer side of the LED PCB 218 and for diffusing the light irradiated from the LED. The LED cover 219 may be referred to as a “diffusion plate”.

The LED cover 219 is integrally coupled to the outer peripheral surfaces of the upper air guide 180 and the lower air guide 220 along the outer circumference where the upper air guide 180 and the lower air guide 220 come into contact with each other. can do.

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

The upper air guide 180 and the lower air guide 210 may be coupled to each other. The combination of the upper air guide 180 and the lower air guide 210 may be referred to as an “air guide device”. The air guide device divides the upper module 100 and the lower module 200 . In other words, the air guide device may separate the upper module 100 and the lower module 200 from each other. In addition, the air guide device may support the upper module 100 and the lower module 200 .

In detail, the lower air guide 210 may be coupled to the lower side of the upper air guide 180 . By the coupling of the upper air guide 180 and the lower air guide 210 , a motor installation space is formed inside the air guide devices 180 and 210 . In addition, the upper motor 170 and the lower motor 236 may be accommodated in the motor installation space. With this configuration, space utilization of the device can be improved.

[The first locking mechanism of the lower fan housing 220]

The lower fan housing 220 may be detachably provided from the flow generating device 10 . And, like the upper module 100, in the lower module 200, the lower cover 290 can selectively engage the lower fan housing 220 in the circumferential and vertical directions. A locking mechanism may be included.

In more detail, a latch coupling part 225b (refer to FIG. 16 ) may be provided in the lower fan housing 220 . In addition, latch assemblies 238a and 238b that are selectively engaged with the lower cover 290 are coupled to the latch coupling portion 225b.

[Latch Assembly]

The latch coupling part 225b is provided on the edge of the housing plate 221 , and may protrude downward from the lower surface of the housing plate 221 . In addition, the latch coupling part of the lower fan housing 220 may be provided at a position corresponding to the latch coupling part 157a provided in the upper fan housing 150 . The detailed description of the latch coupling part 225b refers to the description of the latch coupling part 157a of the upper module 100 .

The latch assemblies 238a and 238b include a first latch 238a inserted into the lower cover 290 and a second latch 238b movably coupled to the latch coupling portion. In addition, the description of the first and second latches 238a and 238b refers to the description of the first and second latches 177a and 177b of the upper module 100 .

However, the difference between the first and second latches 238a and 238b of the lower module 200 from the first and second latches 177a and 177b of the upper module 100 is that the second latch 238b is pressed once When the locking with the ground locking projection is made, and the locking with the locking projection is released when pressed again, the direction in which the pressing is made and the rotation and fixation will be made.

In detail, when the user moves the second latch 238b downward by pressing the upper portion of the second latch 238b, the second latch 238b may be caught by the locking protrusion. At this time, the second latch 238b is inserted into the lower fan housing 220 , that is, protruded downward from the housing plate 221 . Accordingly, since the lower fan housing 220 is vertically coupled to the lower cover 290 , the movement of the lower fan housing 220 from rotating in the circumferential direction can be prevented.

In this state, when the second latch 238b is pressed once again, the second latch 238b is released from the locking projection and moves upward by the restoring force of the elastic member, so that the housing plate 221 ) is in a state protruding upwards. In addition, the lower fan housing 220 may be in a detachable state from the flow generating device 10 . (The second module to be described later is separated from the third module) In this state, the power applied to the flow generating device 10 may be cut off.

[Definition of upper and lower latching mechanism]

On the other hand, the latch assemblies 177a and 177b of the upper module 100 may be called an upper latch assembly or an upper first latching mechanism, and the latch assemblies 238a and 238b of the lower module 200 are connected to the lower latch assembly. Alternatively, it may be called a lower first locking mechanism.

Similarly, the hook 157b and the hook coupling part 127 of the upper module 100 may be called the upper hook and the upper hook coupling part or the upper second locking mechanism, and the hook 225a of the lower module 200 ) and the hook coupling part 292b may be called a lower hook and a lower hook coupling part or a lower second locking mechanism.

[First operation and second operation]

An operation in which the user first presses (pressurizes) the second latch 177b of the upper module 100 or the second latch 238b of the lower module 200 is called a first latching operation, and the first operation Then, the operation of pressing (pressing) again is called a first release operation.

The first latching operation may be understood as a pressing operation in which the second latch is engaged with the engaging projection, and the first releasing operation may be understood as a pressing operation in which the second latch is released from the engaging projection.

In addition, an operation in which the user rotates the upper cover 120 of the upper module 100 or the lower fan housing 220 of the lower module 200 in one direction is called a second engaging operation, and rotates in the other direction. This operation is called the second release operation.

The second locking operation may be understood as an operation in which the hook and the hook coupling unit are engaged, and the second releasing operation may be understood as an operation in which the hook and the hook coupling unit are disengaged.

[Upper Orifice]

In the lower module 200 , an upper orifice 240 is provided under the lower fan housing 220 and a driving device for rotating the upper module 100 and some parts of the lower module 200 is installed. is further included. The upper orifice 240 may have an open central portion 240a and may have an annular shape. The central part 240a may form a flow path for air sucked through the second suction part 23 .

[Driver]

The driving device includes a rotation motor 270 for generating a driving force. For example, the rotation motor 270 may include a step motor that is easy to adjust the rotation angle.

The driving device further includes a power transmission device connected to the rotary motor 270 . The power transmission device may include a pinion gear 272 coupled to the rotation motor 270 and a rack gear 276 interlocking with the pinion gear 272 . The rack gear 276 may have a rounded shape corresponding to the rotational curvature of the upper module 100 and the lower module 200 .

[Lower Orifice]

The lower module 200 further includes a lower orifice 280 provided below the upper orifice 240 . The lower orifice 280 is coupled to the leg 30 . In detail, both sides of the lower orifice 280 may be coupled to the first leg extension 33 and the second leg extension 35 . Accordingly, the lower orifice 280 may be understood as a fixed configuration of the lower module 200 .

[Rack Gear]

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

[Second air treatment device]

The lower module 200 further includes a second air treatment device that operates for conditioning or purification of air flowing through the lower module 200 . The second air treatment device may perform a function different from that of the first air treatment device. For example, the second air treatment device includes a heater assembly 260 supported by the lower orifice 280 and generating predetermined heat.

[heater assembly]

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

The PTC heater starts heating when electricity is applied to both sides, but when the intrinsic Curie temperature (Tc) is reached, the resistance rapidly increases to limit the current, so that no further heating is progressed. Accordingly, the PTC heater has advantages in that the risk of fire is small and the surface temperature is not high.

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

[Roller]

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

[supporter]

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

The first supporter 265 separates the heater assembly 260 from the lower fan 230 to prevent the heat generated from the heater assembly 260 from adversely acting on other components. can And, in the second supporter 267, the rotating upper module 100 and the lower module 200 form a rotation center. In addition, the second supporter 267 is provided with a bearing 275 to guide the movement of the rotating component.

[Lower fan and lower fan housing]

14 is a view showing the configuration of the lower fan housing and the lower fan according to the first embodiment of the present invention, FIG. 15 is a perspective view showing the configuration of the lower fan housing according to the first embodiment of the present invention, and FIG. 16 is It is a bottom perspective view showing the configuration of the lower fan housing according to the first embodiment of the present invention.

3 and 14 to 16 , in the lower module 200 according to an embodiment of the present invention, a lower fan 230 generating an air flow and a lower fan 230 are coupled to the upper side of the lower fan 230 and the A lower fan housing 220 in which the lower fan 230 surrounds at least a portion of an outer circumferential surface is included.

[Detailed configuration of lower fan]

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

The lower fan 230 further includes a side plate portion 235 provided under the plurality of blades 233 . The side plate part 235 performs a function of fixing the plurality of blades 233 . Upper ends of the plurality of blades 233 may be coupled to the main plate 231 , and lower ends thereof may be coupled to the side plate part 235 .

[Difference in size between upper and lower pans]

The upper and lower heights Ho of the upper cover 120 and the upper and lower heights Ho' of the lower cover 290 may be formed to be substantially the same. By this configuration, the appearance of the flow generating device 10 can be compact and the design can be beautiful.

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

For example, when the upper fan 130 and the lower fan 230 are driven at the same rotation speed, the amount of air discharged from the upper module 100 is greater than that of the air discharged from the lower module 200 . can be many Therefore, in order to equally control the amount of air discharged from the upper module 100 and the lower module 200 , the rotation speed of the lower fan 230 may be adjusted to be greater than the rotation speed of the upper fan 130 . . As a result, the air flow discharged from the upper module 100 and the lower module 200 and combined can be easily discharged in the radial direction without being biased upward or downward.

[Detailed configuration of lower fan housing]

The lower fan housing 220 includes a housing plate 221 supporting the upper side of the lower fan 230 and a central portion of the housing plate 221 and coupled to the hub 231a of the lower fan 230 . A hub seat 222 is included. The hub seating part 222 may protrude downward from the housing plate 221 to correspond to the shape of the hub 231a. In addition, a shaft through hole 222a through which the lower motor shaft 236a passes may be formed in the hub seating portion 222 .

The lower fan housing 220 further includes a guide wall 223 protruding downward from the housing plate 221 and disposed to surround at least a portion of an outer circumferential surface of the lower fan 230 . The guide wall 223 may extend from the upper surface of the housing plate 151 to be round in the circumferential direction. Since the height H2 of the lower fan 230 is smaller than the height H1 of the upper fan 130 , the height of the guide wall 223 of the lower fan housing 220 is the lower fan housing 150 . may be smaller than the height of the guide wall 153 of

[1st Fan Euro]

A first fan flow path 234a through which air passing through the lower fan 230 flows is formed between the guide wall 223 and at least a portion of an outer peripheral surface of the lower fan 230 . The first fan flow path 234a may be understood as an air flow path flowing in a circumferential direction. That is, the air introduced in the axial direction of the lower fan 230 is discharged in the radial direction of the lower fan 230 and is guided by the guide wall 223 in the circumferential direction along the first fan passage 234a. as it rotates and moves.

The cross-sectional area of the first fan passage 234a may be configured to gradually increase in the rotational direction of the air. That is, the first fan passage 234a may be formed to have a spiral shape. This can be called "spiral flow". Due to this flow, the flow resistance of the air passing through the lower fan 230 may be reduced and noise generated from the upper fan 230 may be reduced.

[First inclined part]

The guide wall 223 includes a first inclined portion 224 extending from one lower end of the guide wall 223 to an upward slope toward the housing plate 221 . The upwardly inclined direction may correspond to an air flow direction in the first fan passage 234a. According to the configuration of the first inclined portion 224, the flow cross-sectional area of the air gradually increases with respect to the flow direction of the air.

[Second locking mechanism of lower fan housing]

The lower module 200 may include a lower second locking mechanism in which the lower fan housing 220 moves in the circumferential direction to the lower cover 290 to selectively engage in the vertical direction.

The lower second locking mechanism may include a hook 157b and a hook coupling part 157b. The housing plate 221 includes a hook 225a engaged with the lower cover 290 . The hook 225a may have a shape that protrudes from a lower surface of the housing plate 221 and is bent in one direction, for example, a “L” shape.

A hook coupling portion 292b having a shape corresponding to the hook 225a is provided on the lower cover 290 .

The hook coupling part 292b may be provided on the inner circumferential surface of the lower cover 290 and may be disposed to engage with the hook 225a formed on the bottom surface of the housing plate 221 .

That is, the hook 225a of the housing plate 221 may slide in the circumferential direction until it is engaged with the hook coupling portion 292b of the lower cover 290 .

And in a state in which the lower cover 290 and the lower fan housing 220 are coupled, the hook coupling part 292b may be inserted between the bottom surface of the housing plate 221 and the lower part of the hook 225a. have.

The shape and configuration of the hook coupling part 292b and the hook 225a are the same as the hook coupling part 127 and the hook 157b of the top module 100 except for a different arrangement, so the above-described upper module 100 ), the description of the hook coupling portion 127 and the hook 157b is cited.

[Difference in the action of the locking mechanism between the upper module and the lower module]

Meanwhile, in the upper module 100 , the upper cover 120 slides in the circumferential direction, whereas in the lower module 200 , the housing plate 221 , that is, the lower fan housing 220 , not the lower cover 290 . ) can slide in the circumferential direction. This difference is to further improve user convenience due to the shape of the lower cover 290 having a conical shape so that the cross-sectional area increases upward.

In more detail, when the user separates the flow generating device 10 , because of the shape of the lower cover 290 , the lower orifice 280 fixed from the leg 30 , the heater assembly coupled to the lower orifice 280 . It is very difficult to take out and separate the lower cover 290 upward in a state in which the 260 and the upper orifice 240 are fixed, and it is inconvenient to release the coupling of other components.

Accordingly, the user's convenience can be further improved by rotating the lower fan housing 220 to separate it from the lower cover 290 and taking the lower fan housing 220 upward to separate it. In addition, since the flow generating device 10 is located at a lower height than the user, it will be more convenient for the user to sequentially separate the flow generating device 10 from the upper side to the lower side.

[Operation of hook and hook coupling part]

By inserting a lower cover 290 on the outside of the lower fan housing 220 , the hook coupling part 292b may be coupled to the bottom surface of the housing plate 221 .

And, when the lower fan housing 220 is rotated clockwise or counterclockwise, the hook coupling part 292b rotates while being inserted between the lower surface of the housing plate 221 and the lower part of the hook 225a. can That is, the hook may be caught between the hook 225a and the hook coupling portion 292b. Due to this engaging action, the lower fan housing 220 can be prevented from being separated upwardly or downwardly from the lower cover 290 .

That is, since the hook 225a and the hook coupling portion 292b are constrained or released in the circumferential direction, the lower cover 290 and the lower fan housing 220 may be fixed so as not to move in the vertical direction. Accordingly, the lower second locking mechanism may be understood as a locking mechanism in the vertical direction of the lower fan housing 220 .

[Effect of lower latching mechanism]

As such, by the lower first locking mechanism for engaging the lower fan housing 220 and the lower cover 290 in the circumferential direction and the lower second locking mechanism for engaging in the vertical direction, the lower cover 290 and the lower fan housing 220 may be stably coupled. In addition, the lower fan housing 220 can be easily separated from the lower cover 290 .

When the lower fan housing 220 is separated from the flow generating device 10, the lower fan 230 connected to the lower fan housing 220 can be exposed to the outside as well as the lower air guide coupled together. 210 , the upper air guide 180 , the upper fan 130 , and the upper fan housing 150 may be separated and exposed. Accordingly, the cleaning convenience of the separated configuration is improved, and there is an effect that the manageability is improved.

[2nd Fan Euro]

In a state in which the lower cover 290 is coupled to the lower fan housing 220, between a portion of the outer peripheral surface of the lower fan 230 and the inner peripheral surface of the lower cover 290, the first fan flow path 234a A second fan flow path 234b located on the downstream side may be formed. The second fan passage 234b may extend in a circumferential direction through which air flows from the first fan passage 234a. Accordingly, the air passing through the first fan passage 234a may flow through the second fan passage 234b.

A flow cross-sectional area of the second fan passage 234b may be larger than a flow cross-sectional area of the first fan passage 234a. Accordingly, as the flow cross-sectional area increases while the air flows from the first fan flow path 234a to the second fan flow path 234b, the flow resistance of the air passing through the upper fan 230 is reduced and the lower Noise generated from the fan 230 may be reduced.

[Second inclined part]

The guide wall 223 includes a second inclined portion 226 that is inclined upwardly from the other lower end of the guide wall 223 toward the housing plate 221 . The upwardly inclined direction may correspond to an air flow direction in the second fan passage 234b. The second inclined portion 226 may be referred to as a cut-off. According to the configuration of the second inclined portion 226, the flow cross-sectional area of the air gradually increases with respect to the flow direction of the air.

The first inclined portion 224 and the second inclined portion 226 form opposite ends of the guide wall 223 . In addition, the first inclined portion 224 is provided in a region between the first fan passage 234a and the second fan passage 234b, and the second inclined portion 226 is the second fan passage ( 234b) and the flow guide part 227 may be provided in the region. In this way, the first and second inclined portions 224 and 226 are provided in the boundary region where the air flow is switched, so that the air flow ability can be improved.

[Flow guide part]

The lower fan housing 220 further includes a flow guide portion 227 for guiding the air passing through the second fan passage 234b. The flow guide part 227 is provided to protrude downward from the bottom surface of the housing plate 221 . For convenience of explanation, the flow guide unit 160 provided in the upper module 100 is referred to as a “first flow guide unit”, and the flow guide unit 227 provided in the lower module 200 is referred to as a “first flow guide unit”. 2 It is called "flow guide part".

In addition, the flow guide part 227 may be disposed on the outer surface of the guide wall 223 . By the arrangement of the flow guide part 227 , the air flowing in the circumferential direction while passing through the first and second fan flow paths 234a and 234b can be easily introduced into the flow guide part 227 . . The flow guide part 227 includes a guide body 228 that is inclined downward in the flow direction of the air, that is, in the circumferential direction. That is, the guide body 228 includes a round surface or an inclined surface.

An air flow path is formed inside the flow guide part 227 . In detail, an inlet 228a into which air passing through the second fan flow path 234b is introduced is formed at the front end of the flow guide part 227 based on the air flow direction. The inlet 228a may be understood as an open space. The guide body 228 may extend from the inlet 228a to be inclined upward toward the upper surface of the housing plate 221 .

[Incision]

A cutout 221a is formed in the housing plate 221 . The cutout 221a is understood as a portion in which at least a portion of the housing plate 221 penetrates in the vertical direction. The inlet 228a may be positioned below the cutout 221a.

The inlet portion 228a may define a second discharge portion 27 together with the cutout 221a. The second discharge part 27 directs the air flow existing under the housing plate 221 , that is, the air flowing through the first and second fan passages 234a and 234b to the upper side of the housing plate 221 . It can be understood as an outlet for discharging. Accordingly, the air flowing through the second fan passage 234b may flow upwards of the housing plate 221 through the second discharge part 27 .

[Second discharge guide part]

A second discharge guide part 229 is provided on the upper surface of the housing plate 221 to guide the air flow discharged through the second discharge part 27 in a radial direction. The second discharge guide part 229 may protrude upward from the upper surface of the housing plate 221 , and may extend radially outward from the central portion of the housing plate 221 . The second discharge guide part 229 may be disposed on an exit side of the second discharge part 27 , and may be located below the first discharge guide part 158 .

In the housing plate 221, a plate depression 229a that is depressed upward is formed. The protruding shape of the second discharge guide portion 229 may be realized by the plate depression portion 229a. For example, the second discharge guide portion 229 may be configured by a method of forming the plate depression portion 229a by recessing a portion of the housing plate 221 upward.

In addition, the second discharge guide part 229 may be formed so that the outer circumferential surface is curved in both directions so that the flow path can be changed by minimizing the flow loss of the air discharged through the second discharge part 27. can

[Operation of the second discharge guide part]

The air flow discharged through the second discharge unit 27 has a rotating property, and when it meets the second discharge guide unit 229, the direction is changed in a radial direction by the second discharge guide unit 229. can be emitted. Of course, together with the second discharge guide part 229 , the lower air guide 210 may also guide the air flow in the radial direction.

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

[Guide seating part]

A guide seating portion 221c on which the lower air guide 210 is seated is provided on the upper surface of the housing plate 221 . The lower air guide 210 may be stably supported by the guide seating portion 221c. A second guide coupling part 221d to which the lower air guide 210 is coupled is provided in the guide seating part 221c. A predetermined fastening member may be fastened to the lower air guide 210 through the second guide coupling part 221d.

[Upper Orifice and Lower Fan]

17 is a perspective view showing the configuration of the upper orifice and the lower fan according to the first embodiment of the present invention, and FIG. 18 is a bottom perspective view showing the configuration of the upper orifice and the lower fan according to the first embodiment of the present invention, FIG. 19 is a perspective view showing a state in which the rotation motor is installed in the upper orifice according to the first embodiment of the present invention.

[Upper Orifice Body]

3 and 17 to 19 together, the upper orifice 240 according to the embodiment of the present invention is located below the lower fan housing 220 . In detail, the upper orifice 240 includes an upper orifice body 241 having an open central portion 241a. The opened central portion 241a may form an air flow path for transferring air to the lower fan 230 . Due to the opened central portion 241a, the upper orifice body 241 may have a substantially annular shape.

[Fan Guide]

The upper orifice 240 includes a fan guide 242 into which the side plate 235 of the lower fan 230 is inserted. The fan guide 244 may protrude downward from the bottom surface of the upper orifice body 241 . The fan guide 244 may be disposed to surround the opened central portion 241a.

[Motor support part]

The upper orifice 240 further includes a motor support 244 supporting the rotation motor 270 . The motor support part 244 may protrude downward from the upper orifice body 241 and may be disposed to surround an outer circumferential surface of the rotation motor 270 . The rotation motor 270 is supported on the bottom surface of the upper orifice body 241 and may be inserted into the motor support part 244 .

[Driver]

The lower module 200 includes a driving device for guiding the rotation of the upper module 100 and the lower module 200 by generating a driving force. By the driving device, the upper module 100 and the lower module 200 may rotate integrally.

The driving device includes a rotating motor 270 and gears 272 and 276 . The gears 272 and 276 may include a pinion gear 272 and a rack gear 276 .

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

The pinion gear 272 may cooperate with the rack gear 276 . The rack gear 276 may be located in the inner direction of the flow generating device 10 than the pinion gear 272 . And the rack gear 276 is fixed to the lower orifice (280).

Since the rack gear 276 has a fixed configuration, when the pinion gear 272 rotates, the rotation motor 270 and the pinion gear 272 are located at the center of the open central portion 241a of the upper orifice 240 . It rotates, i.e., revolves around And, the upper orifice 240 supporting the rotation motor 270 rotates.

[Second supporter coupling part]

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

[Cover coupling part]

The upper orifice 240 further includes a cover coupling portion 249 coupled to the lower cover 290 . A plurality of cover coupling parts 249 may be provided at the edge of the upper orifice body 241 . The plurality of cover coupling portions 249 may be disposed to be spaced apart from each other in the circumferential direction.

[Orifice coupling part]

The lower cover 290 is provided with an orifice coupling portion 292a coupled to the cover coupling portion 249 . The orifice coupling part 292a is disposed on the inner circumferential surface of the lower cover 290 , and a plurality of orifice coupling parts 292a may be provided corresponding to the number of the cover coupling parts 249 . A predetermined fastening member may be fastened to the cover coupling part 249 through the orifice coupling part 292a.

[Wall support part]

The upper orifice 240 further includes a wallpaper support part 246 supporting the guide wall 223 of the lower fan housing 220 . The wallpaper support part 246 may be provided to protrude upward from the upper surface of the upper orifice body 241 . In addition, the wallpaper support part 246 may support the outer peripheral surface of the guide wall 223 .

[lower orifice and heater assembly]

20 is a perspective view showing the configuration of a heater assembly according to a first embodiment of the present invention;

[Lower orifice body]

Referring to FIG. 20 , the heater assembly 260 according to the embodiment of the present invention may be mounted on the lower orifice 280 . The lower orifice 280 includes a lower orifice body 281 having an open central portion 280a (refer to FIG. 13). The opened central portion 280a may form an air flow path for transferring air sucked through the second suction portion 23 to the opened central portion 241a of the upper orifice 240 . Due to the opened central portion 280a, the lower orifice body 281 may have a substantially annular shape.

[Rack coupling part]

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

[Bracket support part]

The heater assembly 260 includes a heater 261 and a heater bracket 263 supporting both sides of the heater 261 . A heater 261 may be inserted into the opened central portion 280a.

The lower orifice body 281 further includes a bracket support portion on which the heater bracket 263 is mounted. The bracket support part may be provided on both sides of the lower orifice body 281 .

[Roller Support]

A roller support for supporting the roller 278 is provided at an upper portion of the lower orifice body 281 . While the upper orifice 240 rotates, the roller 278 may contact the upper orifice 240 to perform a rolling action.

[First Supporter]

The first supporter 265 is disposed above the lower orifice 280 . In addition, the first supporter 265 may be placed on the upper side of the heater assembly 260 . The first supporter 265 may be made of a metal material, for example, an aluminum material.

The first supporter 265 supports a rotating part of the lower module 200 . In addition, the first supporter 265 together with the second supporter 267 performs a function of protecting components disposed on the upper portion of the lower module 200 from being in direct contact with the heater assembly 260 . That is, the first and second supporters 265 and 267 guide the lower fan 130 and the lower fan housing 220 to be spaced apart from the heater assembly 260 .

[Second Supporter]

The lower orifice 280, the heater assembly 260, and the first supporter 265 are in a fixed configuration, and portions provided above the second supporter 267 and the second supporter 267, that is, The lower fan 230 , the lower fan housing 220 , and the upper orifice 240 may rotate (rotate).

The second supporter 267 includes a second supporter body having a substantially ring shape, and a second supporter frame extending from a point on the inner circumferential surface of the second supporter body to the center of the second supporter body).

A rotation center portion forming a rotation center of the second supporter 267 is provided at a central portion of the second supporter body. The rotation center portion forms a rotation center axis of the second supporter 267 .

[Base]

21 is an exploded perspective view showing the configuration of the base according to the first embodiment of the present invention.

Referring to FIG. 21 , the base 50 according to the embodiment of the present invention includes a base body 51 placed on the ground and a base cover 53 coupled to an upper side of the base body 51 .

The base cover 53 includes a through hole 54 . The through hole 54 may be formed in the center of the base cover 53 . The base 50 further includes a base supporter 58 extending upward from the base body 51 and passing through the through hole 54 . The leg body 31 may be coupled to the base supporter 58 .

The base body 51 may include a base cover fastening portion that is coupled to the base cover 53 . For example, the base cover fastening portion may be provided in plurality to be positioned along the inner circumference of the base body 51 .

A battery 55 and a power PCB 57 may be installed in the base body 51 . The battery 55 and the power PCB 57 may be disposed on both sides of the base supporter 58 . For example, the battery 55 and the power PCB 57 may be installed at positions symmetrical to each other with respect to the base supporter 58 .

Since the battery 55 installed inside the base body 51 has a relatively heavy weight, it is possible to lower the center of gravity of the flow generating device 10 downward. In detail, the upper module 100 and the lower module 200 including relatively heavy parts are disposed above the flow generating device 10 .

Accordingly, although the center of gravity of the flow generating device 10 is formed on the upper portion of the flow generating device 10 , the battery 55 is disposed on the base 50 , so that the overall weight of the flow generating device 10 is It has the effect of lowering the center of gravity downward. As a result, it is possible to reduce the risk of overturning of the flow generating device 10 , and there is an advantage in that safety accidents can be prevented.

Meanwhile, the base body 51 may further include an insertion hole into which a power line for supplying external power is inserted. In addition, the power line inserted through the insertion hole may be connected to the battery 55 or the power PCB 57 .

Power supplied from the outside or power stored in the battery 55 may be supplied to electric components through the power PCB 57 . The electric component may include the upper motor 170 , the lower motor 236 , the main PCB 215 , or the rotation motor 270 .

An electric wire 60 (refer to FIG. 2 ) may be connected to the power PCB 57 . The electric wire 60 extends upward from the base 50 and may be located inside the leg 30 .

In detail, the electric wire 60 extends from the power PCB 57 to the inside of the leg body 31 , and passes through the inside of the first leg extension 33 or the second leg extension 35 . to extend to the main body 20 . That is, the leg 30 may provide an installation space for the electric wire 60 together with the function of supporting the main body 200 .

[Air flow in the upper module]

22 and 23 are views illustrating a state in which air passing through a fan is discharged from the upper module according to the first embodiment of the present invention.

2, 22 and 23 , when the upper fan 130 according to the first embodiment of the present invention is driven, air is sucked through the first suction unit 21 of the upper module 100 . and a flow discharged from the first discharge unit 25 through the upper fan 130, that is, a first air flow Af1 may be generated.

In detail, as the upper fan 130 rotates, air is sucked downward through the first suction unit 21 provided at the upper portion of the upper module 100 . The air sucked in through the first suction unit 21 is sucked in the axial direction of the upper fan 130 through the first pre-filter 105 .

The air introduced in the axial direction of the upper fan 130 is discharged in the radial direction of the upper fan 130 and is guided by the guide wall 153 of the upper fan housing 150 to form a first fan passage 138a. It flows while rotating in the circumferential direction along the Further, the air passing through the first fan passage 138a may flow in the circumferential direction through the second fan passage 138b located on the downstream side of the first fan passage 138a.

Since the flow cross-sectional area of the second fan passage 138b is larger than the flow cross-sectional area of the first fan passage 138a, the flow resistance of the air passing through the upper fan 130 is reduced and It is possible to reduce the generated noise.

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

The direction of the air flowing along the flow guide part 160 may be changed by the first discharge guide part 158 provided under the housing plate 151 . In detail, the air flowing in the circumferential direction may flow outward in the radial direction while meeting the first discharge guide part 158 . At this time, together with the first discharge guide part 158 , the upper air guide 180 may also guide the air flow in the radial direction.

According to this configuration, the air passing through the upper fan 130 is guided in the circumferential direction by the upper fan housing 150 and the upper cover 120 and is discharged through the first discharge unit 25 with rotational force. In addition, the discharged air is guided by the first discharge guide part 158 and the upper air guide 180 so that it can be easily discharged in a radial direction.

On the other hand, the ionizer mounting portion 168 is formed on the outside of the guide wall 153, the ionizer 179 for sterilization of microorganisms in the air is installed. The ionizer 179 may emit negative ions toward the first fan passage 138a or the second fan passage 138b. Therefore, since the air passing through the upper module 100 can be sterilized through the ionizer 179, there is an advantage that clean air can be supplied to the user.

[Air flow in the lower module]

24 and 25 are views showing how air that has passed through the fan is discharged from the lower module according to the first embodiment of the present invention, and FIG. 26 is the upper module and the lower module according to the first embodiment of the present invention. This is a diagram showing the flow of exhausted air.

2 and 24 and 25 , when the lower fan 230 according to the first embodiment of the present invention is driven, air is sucked through the second suction unit 23 of the upper module 200 . and a flow discharged from the second discharge unit 27 through the lower fan 230 , that is, a second air flow Af2 may be generated.

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

The air introduced in the axial direction of the lower fan 230 is discharged in the radial direction of the lower fan 230 and is guided by the guide wall 223 of the lower fan housing 220 to form a first fan passage 234a. It flows while rotating in the circumferential direction along the Also, the air passing through the first fan passage 234a may flow in the circumferential direction through the second fan passage 234b located on the downstream side of the first fan passage 234a.

Since the flow cross-sectional area of the second fan passage 234b is larger than the flow cross-sectional area of the first fan passage 234a, the flow resistance of the air passing through the lower fan 230 is reduced and It is possible to reduce the generated noise.

The air passing through the second fan passage 234b is discharged through the second discharge part 27 and flows upwards of the housing plate 221 . In this case, the flow direction of the air discharged through the second discharge unit 27 may be toward the first discharge unit 25 . In addition, the air discharged from the second discharge unit 27 may be guided by the flow guide unit 227 to easily flow in the circumferential direction.

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

According to this configuration, the air passing through the lower fan 230 is guided in the circumferential direction by the lower fan housing 220 and the lower cover 290 and is discharged through the second discharge unit 27 with rotational force. In addition, the discharged air is guided by the second discharge guide part 229 and the upper air guide 210 so that it can be easily discharged in a radial direction.

[Concentrated discharge of air through the first and second outlets]

Referring to FIG. 26 , the second discharge unit 27 may be disposed to face the first discharge unit 25 with respect to the air guides 180 and 210 . In addition, the air flow toward the second discharge unit 27 may discharge air in a direction toward the first discharge unit 25 . In other words, the first air discharged from the first discharge unit 25 and the second air discharged from the second discharge unit 27 may flow close to each other.

And, the air discharged from the first discharge unit 25 is guided by the first discharge guide unit 158 and the upper air guide 180 and discharged to the first discharge passage 26, and the second discharge The air discharged from the unit 27 may be guided by the second discharge guide unit 229 and the lower air guide 229 to be discharged to the second discharge passage 28 .

At this time, since the second discharge guide part 229 may be located just below the first discharge guide part 158 , the air flowing through the first and second discharge passages 26 and 28 is concentrated. can be discharged outside. According to this flow of air, the flow pressure acting on the flow generating device 10 can be balanced, so that vibration or noise of the flow generating device 10 can be reduced.

The air discharged through the second discharge unit 27 is easily discharged in a radial direction toward the second discharge passage 28 by the second flow guide unit 227 and the second discharge guide unit 229 . can be ejected.

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

[Flowing direction of the air discharged through the first and second discharge units]

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

For example, when the flow generating device 10 is viewed from above, the air discharged from the first discharge unit 25 rotates in any one of a clockwise direction and a counterclockwise direction. On the other hand, the air discharged from the second discharge unit 27 rotates in any other direction among a clockwise direction and a counterclockwise direction.

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

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

Conversely, when the air passing through the upper fan 130 rotates counterclockwise and moves to the first discharge guide unit 158 , the air is guided by the left side of the first discharge guide unit 158 . and discharged in the radial direction. And, when the air passing through the lower fan 230 rotates clockwise and moves to the second discharge guide part 229 , the air is guided by the right side of the second discharge guide part 229 and has a radius discharged in the direction

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

[Rotational action of flow generator]

27 is a cross-sectional view showing a fixed part (F) and a rotating part (R) of the flow generating device according to the first embodiment of the present invention;

Referring to FIG. 27 , the flow generating device 10 according to the first embodiment of the present invention may include a device fixing unit F fixed at one position and a device rotating unit R performing a rotational movement. . The device rotating part R may be rotated clockwise or counterclockwise with respect to the axial direction.

The device fixing part (F) includes a lower orifice 280, a rack gear 276, and a heater assembly 260 of the lower module 100. And, in the device rotating part (R), the upper module 100 and the lower module 100, it can be understood that the remaining parts except for the fixed part (R).

[Assembly and disassembly of flow generator]

28 is a view showing a connection part for assembling and disassembling the flow generating device according to the first embodiment of the present invention.

The flow generating device 10 can be divided into three modules so that separation or assembly can be conveniently performed from the coupling relationship between the above-described components.

That is, the flow generating device 10 may include a first module 410 , a second module 420 , and a third module 430 .

[1st module]

The first module 410 includes an upper cover 120 , a display cover 110 seated on the upper cover 120 , a pre-filter 105 coupled to the display cover 110 , and a top cover support part 103 . and a top cover 101 . And, since the configuration of the first module 410 is coupled to each other as described above, the first module 410 may form an integral body.

The first module 410 can be selectively separated or assembled from the second module 420 by the action of the above-described upper locking mechanism (177a, 177b, 157b, 127).

[Second Module]

The second module 420 includes an upper fan 130 , an upper fan housing 150 , an upper motor 170 , an upper locking part 175 , an upper air guide 180 , a lower air guide 210 , and a lower motor. 236 , a lower fan housing 220 , a lower fan 230 , and a lower locking part 239 . And, since the configuration of the second module 420 is coupled to each other as described above, the second module 420 may form an integral body.

The second module 420 may be selectively separated or assembled from the third module 430 by the action of the lower engaging mechanisms 238a, 238b, 225a, and 292b described above.

[3rd module]

The third module 430 includes a base 50 placed on the ground, a leg 30 coupled to the base, a lower orifice 280 coupled to the leg 30, and the lower orifice 280 coupled with a heater assembly 260 and a first supporter 265 that become It may include a lower cover 290 coupled to the 240. As described above, since the components of the third module 430 are coupled to each other, the third module 430 may form an integral body.

The third module 430 may be selectively separated or assembled from the second module 420 by the action of the lower engaging mechanisms 238a, 238b, 225a, and 292b. However, the third module 430 is a part fixed to the ground by the base 50 . Accordingly, it will be more convenient for the user to separate the second module 420 from the third module 430 .

[Fixed part and separated part]

The flow generating device 10 can be understood by dividing it into a fixed part and a separate part for the convenience of separation or assembly. For example, the first module 410 and the second module 420 may be defined as separate parts, and the third module 430 may be defined as a fixed part.

In addition, the separation portion can be understood as a portion that can be separated by rotation in the flow generating device (10).

Here, the fixed part is somewhat different from the meaning of the rotating part (R) and the fixed part (F) that do not rotate in the fixed part (F) described with reference to FIG. 27 . In detail, the fixing part means all the configurations of the third module 430 standing in contact with the ground. That is, the fixed portion includes a portion of the above-described fixed portion (F) and the rotating portion (R).

The fixing portion is provided with a base 50 in contact with the ground and a leg 30 extending upwardly from the base 50 . Therefore, it is inconvenient for the user to first separate the third module 430 in a state in which the first module 410 to the third module 430 are all combined to separate the flow generating device 10 . have.

Therefore, the user releases the restraint of the first module 410 by the action of the upper locking mechanism and rotates and separates the first module 410 from the second module 420 for cleaning, etc. of the flow generating device 10 . , the second module 420 can be released from the restraint by the action of the lower locking mechanism and rotated from the third module 430 to be separated.

According to this, it is possible to easily separate the upper cover 120 that is opened upward and can accumulate a lot of dust, and the upper fan 130 and the lower fan 230 that require cleaning by the suction force. In addition, it is possible to conveniently perform cleaning or management for each separated module.

That is, the separation portion may be understood as a portion that can be easily separated by the user and the flow generating device 10 in a standing state.

Hereinafter, a separation method through which a user can easily separate the flow generating device 10 for each module will be described in detail.

[Method of separating flow generator]

29 and 30 are views showing a method of disassembling the flow generating device according to the first embodiment of the present invention. In detail, (a), (b), (c), and (d) of FIG. 29 are views showing the separation of the first module and separation of the upper fan, and FIGS. 30 (a), (b), (c) , (d) is a view showing the separation of the second module and the separation of the lower fan.

The separation method of the flow generator 10 includes a first separation step of separating the first module 410 from a second module 420 and a second separation step of separating the second module from a third module 430 . may include steps.

[First Separation Step]

Referring to FIG. 29( a ), the separation step may start in the flow generating device 10 in which all of the first to third modules are combined.

In the first separation step, the user may press the second latch 177b of the first locking mechanism of the upper module 100 upward once. At this time, the pressed second latch 177b may be released from the locking projection 128a and protrude downward. Accordingly, the circumferential restraint of the upper cover 120 with respect to the upper fan housing 150 may be released.

In addition, the user can rotate the upper cover 120 in any one direction while holding it. At this time. The fixing between the second locking mechanisms 127 and 157b of the upper module 100 may be released. That is, as the upper cover 120 rotates, the hook coupling part 127 comes out in the opened circumferential direction of the hook 157b to release the vertical restraint of the upper cover 120 .

And, referring to FIG. 29( b ), the user can separate the first module 410 by lifting the upper cover 120 upwards. Accordingly, the user can not only easily clean or manage the first module 410 , but also expose the upper fan 130 and the upper fan housing 150 to the outside, thereby making management easier.

And, referring to FIG. 29(c), the user checks the upper fan 130 and the upper fan housing 150 exposed to the outside, and when it is determined that management such as replacement or cleaning is necessary, the upper fan 130 is removed. can be separated. In detail, the user may release the fixed coupling between the upper fan 130 and the upper motor 170 by rotating the upper locking part 150 in one direction.

And, referring to FIG. 29( d ), when the upper locking part 150 is separated, the upper fan 130 may be lifted upward to be separated from the upper fan housing 150 . That is, the upper fan 130 may be separated from the second module 420 according to a user's selection.

[Second separation step]

Referring to FIG. 30A , the second separation step may start in a state in which the first module 410 is separated and the second module 420 and the third module 430 are combined.

In the second separation step, the user may press the second latch 238b of the first locking mechanism (lower first locking mechanism) of the lower module 200 downward once. At this time, the pressed second latch 238b may be elastically restored upward by releasing the locking projection and the locking protrusion. Accordingly, circumferential restraint on the lower cover 290 of the lower fan housing 220 may be released.

In addition, the user may rotate the air guides 180 and 210 in any one direction while holding them. At this time. The lower fan housing 220 integrally connected to the air guides 180 and 210 may be rotated. Of course, for rotation of the lower fan housing 220 , the user may grip and rotate other components.

When the lower fan housing 220 is rotated, the fixing between the second locking mechanisms 225a and 292b of the lower module 200 may be released.

That is, due to the rotation of the lower fan housing 220 , the hook 225a may come out in the circumferential direction from the state in which it is connected to the hook coupling part 292b. Accordingly, it is possible to release the vertical restraint on the lower cover 290 of the lower fan housing 220 .

And, referring to FIG. 30B , the user may lift the lower fan housing 220 upward to separate the second module 420 from the third module 430 . Accordingly, the user can not only easily clean or manage the second module 420 , but also include the lower fan 230 and the lower fan housing 220 of the second module 420 , and the third module Since the upper orifice 240 and the heater assembly 260 of the 430 can be exposed to the outside, management can be facilitated.

And, referring to FIG. 30(c), the user checks the lower fan 230 and the lower fan housing 220 exposed to the outside, and when it is determined that management such as replacement or cleaning is necessary, the lower fan 230 is removed. can be separated. In detail, the user may release the fixed coupling between the lower fan 230 and the lower motor 236 by rotating the lower locking part 239 in one direction.

And, referring to FIG. 30(d), when the lower locking part 239 is separated, the lower fan 230 can be taken out (or turned upside down and lifted upward) to be separated from the lower fan housing 220. have. That is, the lower fan 230 may be separated from the second module 420 according to a user's selection.

As described above, by using the action of the first and second upper engaging mechanisms and the first and second lower engaging mechanisms, the user can separate the flow generating device 10 into three modules by a simple operation, so that the flow generating device The cleaning convenience of (10) can be improved.

[Method of assembling the flow generator]

Meanwhile, it will be apparent that the reverse order of the separation step will be the assembly method of the flow generating device 10 . That is, after coupling the second module 420 to the third module 430 , the flow generating device 10 may be assembled by coupling the first module 410 to the second module 420 . have. In addition, the assembly method of each module may be performed in reverse of the above-described separation method.

[Electrical connection and disconnection]

On the other hand, electrical disconnection may be made in the first separation step and the second separation step. Conversely, an electrical connection may be made in the first assembling step and the second assembling step.

That is, when the circumferential or vertical restraint by the locking mechanism (upper locking mechanism) of the upper module 100 is released in the first separation step, the second module 420 and the third module 430 ) and the electrical connection between the first module 410 may be cut off.

Specifically, the first module 410 and the second module 420 may be provided in a contact structure for electrical connection. For example, the first latch 177a of the upper module 100 may be positioned with a Pogo PIN inserted therein. In addition, the second latch 177b may be formed of a conductor and may include a contact portion contacting the first latch 177a. In addition, the conductor may be provided so that a ring-type electric wire (wire) is wound downwardly so that a current can flow.

Accordingly, when the second latch 177b is pressed to engage the locking protrusion 128a, the contact part comes into contact with the pogo pin. In this case, the first module 410 may form an electrical connection with the second module 420 and the third module 430 .

Then, when the second latch 177b is pressed again and the locking protrusion 128a is released, the contact part is separated from the pogo pin and moves downward, so that an electrical disconnection can be made.

Accordingly, when the first module 410 is separated, the current flowing to the display cover 110 and the like can be immediately cut off, so that the user's safety can be improved.

On the other hand, the flow generating device 10 may be provided with a central control unit for controlling the power supply inside the base (50). The central control unit may include the above-described power PCB 57 .

The central control unit may detect a contact connection or a contact release with respect to the first module 410 . That is, when an electrical disconnection to the first module 410 is detected, the controller may turn off the power supplied to the main PCB 215 located inside the air guides 180 and 210 . .

That is, the central control unit may control the power to be connected to the upper fan 130 and/or the lower fan 230 only when a contact connection with the first module 410 is made. In addition, when the disconnection of the contact with the first module 410 is sensed, it is possible to control so that the power connection to the upper fan 130 and/or the lower fan 230 is cut off.

According to this, through the contact connection or contact release of the first module 410 , the central control unit can recognize the separation situation of the flow generating device 10 , and the user is exposed to the outside when operating for separation. Since the operation of the upper fan and/or the lower fan can be stopped, there is an advantage in preventing a safety accident.

The above-described electrical connection or electrical disconnection method is equally applied to the engaging mechanism (lower engaging mechanism) of the lower module 200 . Accordingly, the description of the electrical disconnection or connection made during the separation or assembly of the second module 420 refers to the description of the first module 410 .

That is, when the restraint in the circumferential direction or the vertical direction by the locking mechanism of the lower module 200 is released in the second separation step, the electrical connection between the second module 420 and the third module 430 is cut off. can get For example, the power connection of all components controlled through the main PCB 215 may be released.

In addition, when an electrical disconnection between the second module 420 and the third module 430 is detected, the central control unit is configured to prevent external power or power supplied from the battery 55 from being provided to the main body 10 . can be turned off.

Accordingly, it is possible to forcibly terminate the operation of the configuration provided in the third module 430 to prevent a user safety accident that may occur during separation.

10: flow generator 20: body
100: upper module 200: lower module

Claims (20)

an upper fan for generating a first air flow;
an upper fan housing accommodating the upper fan;
an upper cover disposed to surround the upper fan and the upper fan housing;
an upper locking mechanism for guiding selective coupling between the upper cover and the upper fan housing;
a lower fan provided below the upper fan and generating a second air flow close to the first air flow;
a lower fan housing accommodating the lower fan;
a lower cover disposed to surround the lower fan and the lower fan housing;
and a lower locking mechanism for guiding selective coupling between the lower cover and the lower fan housing,
The upper locking mechanism,
By the first operation, the upper cover and the upper fan housing can be constrained or released in the circumferential direction,
By the second operation, the upper cover and the upper fan housing can be constrained or released in the vertical direction,
The lower engaging mechanism,
By the first operation, the upper cover and the upper fan housing can be constrained or released in the circumferential direction,
The flow generating device according to claim 1, wherein the upper cover and the lower fan housing can be constrained or released in the vertical direction by a second operation.
The method of claim 1,
The upper engaging mechanism and the lower engaging mechanism,
a first locking mechanism for guiding the first operation;
A flow generating device including a second locking mechanism for guiding the second operation.
3. The method of claim 2,
The first locking mechanism,
a latch receiving part provided on the upper cover and the lower cover;
a first latch inserted into the latch receiving part; and
and a second latch movably coupled to the upper fan housing and the lower fan housing.
4. The method of claim 3,
The second latch moves in the vertical direction to be constrained or released from the latch receiving part.
4. The method of claim 3,
The first locking mechanism may further include a locking projection protruding from the latch receiving portion.
6. The method of claim 5,
The first operation is
a first locking operation in which the second latch and the locking protrusion are engaged; and
and a first releasing operation for releasing the latches between the second latch and the locking protrusion.
7. The method according to any one of claims 2 to 6,
The second locking mechanism,
a hook protruding from one surface of the upper fan housing and the lower fan housing; and
and a hook coupling part provided on the upper cover and the lower cover in a shape corresponding to the hook.
8. The method of claim 7,
The hook is a flow generating device, characterized in that having a shape bent in one direction.
8. The method of claim 7,
At least one of the upper cover and the upper fan housing is fitted by sliding the hook and the hook coupling part in a circumferential direction;
at least one of the lower cover and the lower fan housing is fitted by sliding in a circumferential direction.
8. The method of claim 7,
The second operation is
a second engaging operation in which the hook coupling part is fitted to the hook; and
and a second releasing operation in which the hook engaging portion moves away from the hook.
delete delete The method of claim 1,
The upper engaging mechanism and the lower engaging mechanism,
and a contact part capable of electrically disconnecting according to restraint or release of the upper cover and the upper fan housing and restraint or release of the lower cover and the lower fan housing.
a first module including an upper fan and an upper cover disposed to surround the upper fan housing;
a second module coupled to the first module and including a lower fan and a lower fan housing accommodating the lower fan; and
In the flow generating device coupled to the second module and including a third module including a base placed on the ground, a leg extending from the base, and a lower cover coupled to the leg,
a first separation step of separating the first module from the second module; and
a second separation step of separating the second module from the third module;
The first separation step and the second separation step,
The first locking mechanism constraining the circumferential direction between the modules is pressed in the vertical direction to release the constraint,
A method of separating a flow generating device, characterized in that the second locking mechanism for restraining the vertical direction between the modules releases the restraint by rotation.
15. The method of claim 14,
The first separation step is
releasing the circumferential restraints of the upper cover and the upper fan housing by pressing the first locking mechanism; and
and releasing, by the second locking mechanism, vertical restraints between the upper cover and the upper fan housing by circumferential rotation of the upper cover.

16. The method of claim 15,
The separation method of the flow generating device, characterized in that the upper cover is separated upwardly to expose the upper fan and the upper fan housing to the outside.
15. The method of claim 14,
The second separation step is
and releasing the circumferential restraints of the lower cover and the lower fan housing by pressing the first locking mechanism.
18. The method of claim 17,
A direction in which the first locking mechanism is pressed in the first separation step is opposite to a direction in which the first locking mechanism is pressed in the second separation step.

15. The method of claim 14,
The second separation step is
and releasing, by the second locking mechanism, vertical restraints between the lower cover and the lower fan housing by circumferential rotation of the lower fan housing.
15. The method of claim 14,
When at least one of the first locking mechanism and the second locking mechanism releases the restraint, an electrical disconnection between the modules is achieved.

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