CN115398156A

CN115398156A - Air purifier

Info

Publication number: CN115398156A
Application number: CN202080099410.XA
Authority: CN
Inventors: 河志昱; 赵刚义; 韩成卿; 裵世焕; 李名壎
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2020-03-31
Filing date: 2020-11-02
Publication date: 2022-11-25
Also published as: KR20210121930A; WO2021201363A1

Abstract

Disclosed is an air purifier including a blower, the blower including: a housing for defining an appearance of the blower; a blowing fan disposed inside the surface of the case so as to discharge air; an air passage controller provided on the blowing fan and located within the case so as to adjust a flow area of air discharged from the blowing fan; and a discharge hole defined on the air passage controller so as to discharge the air discharged from the blowing fan through the case; a flow regulating device provided on the blower to change a discharge direction of air discharged from the blower; and a guide member provided between the blower and the flow regulation device, one end of which is connected to the blower and the other end of which is connected to the flow regulation device, wherein the guide member causes a state transition of the flow regulation device.

Description

Air purifier

Technical Field

The present disclosure relates to an air purifier.

Background

An air purifier is understood as a home appliance (appliance) that sucks and filters contaminated air and then discharges the filtered air, and is configured to purify an indoor space such as a living room or an office. Generally, an air purifier includes: a blower configured to suck external air and discharge the sucked air; and a filter provided in the blower to filter dust, bacteria, etc. in the air. In this regard, the air purifier may further include a flow adjusting device configured to adjust a discharge direction of air discharged from the blower. However, the hair dryer has a limitation in a discharge area where air cannot be self-regulated, in addition to the case where the flow regulating device is used.

That is, in the case where it is not necessary to discharge air in all directions, for example, in the case where the air cleaner is disposed close to the wall surface of the indoor space, since the air cleaner cannot restrict the air from being discharged from the blower to a portion close to the wall surface, there is a problem that effective blowing cannot be achieved.

The related art (korean patent application laid-open No.10-2017-0101100, hereinafter referred to as prior art 1) discloses an air purifier further including a flow adjusting device configured to adjust a discharge direction of air discharged from a blower. In the air cleaner of the related art 1, air drawn into the blower is filtered through a filter provided in the blower and then discharged in a vertical direction perpendicular to a top surface of the blower. After that, the air discharged from the blower is blown in a direction different from the vertical direction by the flow regulating device.

However, even if the air cleaner of the prior art 1 is used, the hair dryer cannot restrict the discharge area of the air by itself. Therefore, there is a problem that air is discharged from the blower to all areas, so that effective blowing cannot be achieved.

Another prior art (korean patent application publication No.10-2019-0119565, hereinafter referred to as prior art 2) discloses an air cleaner including a discharge guide configured to change a flow direction of air flowing within a blower. In the air cleaner of the related art 2, as the rotary guide plate coupled to the discharge guide rotates, a discharge area of air discharged from the blower may be restricted.

However, in the case of the air cleaner of the related art 2, since the rotation guide plate is formed to have a structure at least partially shielded in the area where the air flows, there is a limitation that the air cannot be discharged to all areas without limiting the discharge area of the air discharged from the blower.

Disclosure of Invention

Technical problem

One of various tasks of the present disclosure is to provide an air purifier including a blower which sucks air from the outside, filters the air, and self-restricts a flow area of the air, thereby discharging the air only in a specific region.

One of various tasks of the present disclosure is to provide an air purifier including an air passage controller provided in a blower to selectively close or open a flow area of air, thereby controlling a discharge area of the air.

Technical scheme

An air cleaner according to an exemplary embodiment of the present disclosure includes a blower including a blowing fan disposed therein and a discharge hole defined in a top surface thereof. The blower may further include an air passage controller disposed between the blowing fan and the discharge hole to selectively close or open a flow area of the air so as to control the discharge area of the air. The air passage controller may include: an air passage control panel provided in the blower to partially cover a space where air flows; and an air passage control link coupled to the air passage control panel and controlled to ascend and descend.

When the air passage control link is controlled to be raised, the air passage control panel may be closed, and the air discharged from the blower may be uniformly blown across all areas.

When the air passage control link is controlled to be lowered, the air passage control panel may be opened, and thus, air discharged from the blower may be selectively blown to a specific area.

An air purifier according to an exemplary embodiment of the present disclosure may include: a blower configured to suck, filter and discharge air; a flow regulating device provided on the blower to change a discharge direction of air discharged from the blower; and a guide member provided between the blower and the flow adjustment device, one end of which is connected to the blower and the other end of which is connected to the flow adjustment device, wherein the guide member causes a state transition of the flow adjustment device. The blower may include: and an air passage controller provided in the blower to selectively close or open a flow area of the air, thereby controlling a discharge area of the air. The air passage controller may selectively close a portion of the flow area such that air discharged from the blowing fan may be selectively concentrated in a specific region, wherein the air flows between the blowing fan provided within the blower and the discharge hole defined in the top surface of the blower.

An air purifier according to an exemplary embodiment of the present disclosure includes a blower including: a housing for defining an external appearance of the hair dryer; a suction hole defined in a sidewall of the housing to suck air from the outside; a filter member disposed within the housing so as to filter the sucked air; a blowing fan disposed in the housing and on a top surface of the filter member to discharge the filtered air; an air passage controller provided on the blowing fan and located within the case so as to adjust a flow area of air discharged from the blowing fan; and a discharge hole defined on the air passage controller and passing through the housing to discharge air discharged from the blowing fan; a flow regulating device provided on the blower to change a discharge direction of air discharged from the blower; and a guide member provided between the blower and the flow regulation device, one end of which is connected to the blower and the other end of which is connected to the flow regulation device, wherein the guide member causes a state transition of the flow regulation device. The air passage controller selectively closes a portion of a flow area through which air flows between the blowing fan and the discharge hole such that air discharged from the blowing fan is selectively concentrated in a specific region.

The air passage controller may include: a first frame rotatably provided on the blowing fan and having a cylindrical shape; a second frame having a top surface at the same vertical height as the top surface of the first frame, spaced from the first frame, and having a ring shape surrounding the top of the first frame; an air passage control panel disposed between the first frame and the second frame, wherein one end of the air passage control panel is fixed to the first frame and the other end thereof is fixed to the second frame, wherein the control panel partially covers a space between the first frame and the second frame; and an air passage control link provided within the first frame, wherein the air passage control link is connected to the other end of the air passage control panel so as to cause opening and closing of the air passage control panel. A portion of the space between the first frame and the second frame, which is not covered by the air passage control panel, may be provided with a concentrated air passage.

The air passage controller may further include: a first actuator provided within the first frame and configured to drive the air passage control link to ascend and descend; and a second actuator disposed within the first frame and configured to drive rotation of the first frame. The first and second actuators may be spaced apart from each other.

The first actuator may include: a first motor for providing electrical power; a first shaft protruding from one end of the first motor and being rotatable; and a first wheel coupled to the first shaft. A first rail extending in a vertical direction perpendicular to the ground may be provided on a portion of an inner wall of the air passage control link. The raising and lowering of the air channel control link may be controlled as the first wheel rotates in engagement with the first track.

The bottom surface of the first frame may have first and second openings defined at positions corresponding to the outer peripheral portion of the air passage control link and the lower portion of the first rail, respectively, the first opening may refer to a region where the outer peripheral portion of the air passage control link passes through the bottom surface of the first frame in a vertical direction when the air passage control link descends, and the second opening may refer to a region where the lower portion of the first rail passes through the bottom surface of the first frame in a vertical direction when the air passage control link descends.

The air passage control panel may include a plurality of control panels and a plurality of through members respectively passing through the control panels and integrally formed with the control panels. Each of the pass-through members may extend through the second frame, each of the control panels, and the first frame in sequence along a first direction parallel to the ground.

Each through member may pass through the first frame in a first direction, then extend over the top surface of the air channel control link, and then bend and extend in a second direction different from the first direction.

The first direction and the second direction may be orthogonal to each other.

The air passage control link may include a plurality of through-fixtures configured to extend from a top surface thereof, one end of each through-member extending from each control panel and through the second frame may be fastened to the second frame, and the other end of each through-member extending from each control panel and through the first frame may be fastened to each through-fastener.

When the air passage control link is lowered by the first actuator, the other end of each through member may be lowered together so that each control panel integrally formed with each through member may be rotated in one direction, so that the air passage control panel may be controlled to be opened. When the air passage control link is raised by the first actuator, the other end of each through member may be raised together so that each control panel integrally formed with the through member may be rotated in a direction opposite to the one direction, so that the air passage control panel may be controlled to be closed.

Each control panel may have a sector shape with rounded top and bottom trapezoidal ring bands.

The control panel may be arranged to partially cover a space between the first frame and the second frame.

The second actuator may include: a second motor for providing power; a second shaft protruding from one end of the second motor and rotatable; and a second wheel coupled to the second shaft. A second rail extending in a horizontal direction horizontal to the ground may be provided on a portion of an inner wall of the housing of the blower. Rotation of the first frame may be controlled as the second wheel rotates in engagement with the second track.

When the first frame is rotated in one direction by the second actuator, the other end of the air passage control panel fixed to the first frame may be rotated in the one direction, and thus, the concentrated air passage may also be controlled to be rotated in the one direction.

In a top view, the air passage control link may have a ring shape surrounded by an inner wall of the first frame.

The blower may include: a first blower filtering and blowing air at a relatively low vertical height; and a second blower filtering and blowing air at a relatively high vertical height, wherein the first blower and the second blower are sequentially stacked in a vertical direction perpendicular to the floor. The first blower may include: a first housing for defining an appearance of the first blower; a first filter member disposed in a lower portion of an interior of the first housing so as to filter air; and a first blowing fan provided in an upper portion of an inside of the first case so as to generate an air flow. The second blower may include: a second casing for defining an external appearance of the second blower; a second filter member disposed at a lower portion of an inside of the second housing so as to filter air; and a second blowing fan provided in an upper portion of an interior of the second casing so as to generate an air flow. The air passage controller may be provided in at least one of the first blower and the second blower.

The air passage controller may be composed of a first air passage controller and a second air passage controller, the first air passage controller may be provided in the first blower, and the second air passage controller may be provided in the second blower.

An air purifier according to an exemplary embodiment of the present disclosure includes a blower including: a housing for defining an external appearance of the hair dryer; a suction hole defined in a sidewall of the housing to suck air from the outside; a filter member disposed within the housing so as to filter the sucked air; a blowing fan disposed in the housing and on a top surface of the filter member to discharge the filtered air; an air passage controller provided on the blowing fan and located within the case and configured to adjust a flow area of air discharged from the blowing fan, the air passage controller including a first frame rotatably provided on the blowing fan and having a cylindrical shape, and a second frame having a ring shape surrounding at least a portion of the first frame; and a discharge hole defined on the air passage controller to pass through the housing, and configured to discharge air discharged from the blowing fan; and a flow regulating device provided on the blower and configured to change a discharge direction of air discharged from the blower. The air passage controller further includes: an air passage control panel disposed between the first frame and the second frame and configured to partially cover a space between the first frame and the second frame, a concentrated air passage being disposed on a portion of the space between the first frame and the second frame that is not covered by the air passage control panel.

The air channel controller further includes an air channel control link disposed within the first frame, and the air channel control link is connected to the other end of the air channel control panel and configured to cause opening and closing of the air channel control panel.

The air passage controller further includes: a first actuator disposed within the first frame and configured to drive the air passage control link to ascend and descend; and a second actuator provided within the first frame and configured to drive rotation of the first frame, the air passage control panel being controlled to be opened when the air passage control link is lowered by the first actuator, and the air passage control panel being controlled to be closed when the air passage control link is raised by the first actuator.

Advantageous effects

An air purifier according to an exemplary embodiment of the present disclosure may include a blower that sucks air from the outside and then filters and discharges the sucked air. An air passage controller may be provided within the blower that selectively closes off a portion of the flow area for air to flow therein to allow air discharged from the blower to be selectively concentrated in a particular area.

The air passage controller may be provided within the blower and controlled to selectively close a portion of a flow area in which air flows, and thus, air discharged from the blower may be selectively blown to a specific area.

The air passage controller may be provided inside the blower and controlled to open all flow areas in which air flows, and thus, air discharged from the blower may be uniformly blown across all areas.

Drawings

Fig. 1 to 4 are perspective views for explaining an air purifier according to an exemplary embodiment of the present disclosure.

Fig. 5 to 8 are a perspective view, a sectional view, and a side view for explaining an air purifier according to an exemplary embodiment of the present disclosure.

Fig. 9 to 18 are a perspective view, a sectional view, a top view, and a side view for explaining an air purifier according to an exemplary embodiment of the present disclosure.

Fig. 19 to 26 are a perspective view and a sectional view for explaining an air purifier according to an exemplary embodiment of the present disclosure.

Fig. 27 to 34 are a perspective view, a sectional view, and a rear view for explaining an air purifier according to an exemplary embodiment of the present disclosure.

Detailed Description

Specific embodiments of the present disclosure will be described below with reference to the accompanying drawings. The following detailed description is configured to facilitate a thorough understanding of the methods, apparatuses, and/or systems described herein. However, this is merely an example, and the present disclosure is not limited thereto.

Furthermore, in the following detailed description of the present disclosure, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. However, it is understood that the disclosure may be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail as not to unnecessarily obscure aspects of the present disclosure. Unless defined otherwise, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the inventive concepts belong. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and "including," when used in this specification, specify the presence of stated features, integers, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, operations, elements, components, and/or groups thereof.

It will be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. As such, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the spirit and scope of the present disclosure.

Hereinafter, a direction perpendicular to the ground is defined as a vertical direction. A direction parallel to the ground and perpendicular to the vertical direction is defined as a horizontal direction. The circumferential direction is defined as an imaginary circular direction formed when the object is rotated around the vertical direction with the horizontal direction length as a rotation radius.

Fig. 1 to 4 are perspective views for explaining an air purifier according to an exemplary embodiment of the present disclosure. Specifically, fig. 1 is a perspective view for explaining the overall structure of the air purifier. Fig. 2 to 4 are enlarged perspective views of the region a in fig. 1. In this regard, fig. 2 is a view for explaining components of a flow regulating device included in the air purifier. Fig. 3 and 4 are views for explaining a section of the flow adjustment device.

Referring to fig. 1, an air purifier 1 according to an exemplary embodiment of the present disclosure may include:

blowers

10 and 20 configured to suck air from the outside, and filter the sucked air, and discharge the filtered air; a flow regulating device 30 provided on the

blowers

10 and 20 and configured to suck air discharged from the

blowers

10 and 20 and control a discharge direction of the sucked air; and a guide member 40 disposed between the

blowers

10 and 20 and the flow regulation device 30, wherein one end of the guide member is connected to the blower 30 and the other end is connected to the air discharge assembly 30, wherein the guide member 40 is configured to cause a state transition of the flow regulation device 30.

The

hair dryers

10 and 20 include: a first blower 10 configured to suck, filter and blow air at a relatively low vertical height; and a second blower 20 provided on the first blower 10 and configured to suck, filter and blow air at a relatively high vertical height. The first blower 10 and the second blower 20 are stacked in a vertical direction and may be fastened to each other by various methods such as fitting fastening, rivet fastening, and screw fastening.

The flow regulating device 30 may be provided on the second blower 20. The guide member 40 may be configured to be connected to the second blower 20 and the flow conditioning device 30. The guide member 40 and the second blower 20 may be fastened to each other by various methods such as fitting fastening, rivet fastening, and screw fastening. The guide member 40 and the flow adjustment device 30 may be fastened to each other by various methods such as fitting fastening, rivet fastening, and screw fastening.

In one example, fig. 1 shows that the

blowers

10 and 20 include a first blower 10 and a second blower 20 stacked in series in a vertical direction. However, the concepts of the present disclosure are not necessarily limited thereto. The blower may comprise only one blower.

The first blower 10 may include: a first casing 100 defining an external appearance of the blower; a first filter member 130 disposed in a lower portion of the inside of the first case 100 to filter air; and a first blowing fan 160 disposed in an upper portion of the inside of the first casing 100 to generate an air flow. The second blower 20 includes: a second case 200 defining an external appearance; a second filter member 230 disposed in a lower portion of the interior of the second case 200; and a second blowing fan 260 disposed in an upper portion of the inside of the second case 200 to generate an air flow.

In an exemplary embodiment, each of the first and

second housings

100 and 200 has a truncated cone shape or a cylindrical shape having a diameter gradually decreasing as it extends upward.

The first blower 10 may further include: a first base 105 is provided in a lower portion of the first blower 10. The first base 105 may be disposed on a ground surface and configured to support the first blower 10. The first base 105 may include: a lower portion configured to contact a ground surface; and an upper portion extending in a vertical direction from the lower portion and at least partially covered by the first housing 100. In one example, even though not shown, a first lower suction hole communicating with the inside of the first blower 10 may be further provided in a space between the inner wall of the first casing 100 and the upper portion of the first base 105. Accordingly, the external air may be sucked into the inside of the first blower 10 through the first lower suction hole.

The second blower 20 may further include a second base 205 disposed in a lower portion of the first blower 20. The second base 105 may be disposed on the first blower 10 and configured to support the second blower 20. The second base 205 may include: a lower portion configured to contact the first blower 10; and an upper portion extending in a vertical direction from the lower portion and at least partially covered by the second housing 200. In one example, even though not shown, a second lower suction hole may be provided in a space between an inner wall of the second casing 100 and an upper portion of the second base 205, which communicates with the inside of the second blower 20, and thus, external air may be sucked into the inside of the second blower 20 through the second lower suction hole.

In a sidewall of the first casing 100, a first suction hole 110 configured to suck air from the outside may be defined. The first suction hole 110 may include a plurality of through holes passing through at least a portion of the first housing 100. Also, in the sidewall of the second case 200, a second suction hole 210 configured to suck air from the outside may be defined. The second suction hole 210 may include a plurality of through holes passing through at least a portion of the second casing 100.

The first suction hole 110 may be configured to have a linear shape extending from the bottom to the top of the first housing 100. A plurality of first suction holes 110 may be defined in a sidewall of the first housing 100. The plurality of first suction holes 110 may be uniformly arranged in a circumferential direction along an outer circumferential surface of the first housing 100 so as to be able to suck air in any direction around the first housing 100. Also, the second suction hole 210 may be configured to have a linear shape extending from the top of the second housing 200 to the top. A plurality of second suction holes 210 may be defined in a sidewall of the second housing 200. The plurality of second suction holes 210 may be uniformly arranged in a circumferential direction along the outer circumferential surface of the second casing 100 so as to be able to suck air in any direction around the second casing 200.

A first discharge hole 120 configured to discharge air to the outside is defined in a top surface of the first blower 10. The first discharge hole 120 may include a plurality of through holes passing through at least a portion of the top surface of the first blower 10. Also, a second discharge hole 220 configured to discharge air to the outside may be defined in a top surface of the second blower 20. The second discharge hole 220 may include a plurality of through holes passing through at least a portion of the top surface of the second blower 20.

The first discharge hole 120 may be configured to have a linear shape extending from a distal portion of the top surface of the first blower 10 to a portion adjacent to the central region thereof. A plurality of first discharge holes 120 may be defined in the top surface of the first blower 10. The plurality of first discharge holes 120 may be uniformly arranged to surround the portion of the top surface of the first blower 10 except for the portion where the second base 205 is provided. Also, the second discharge hole 220 may be configured to have a linear shape extending from a distal portion of the top surface of the second blower 20 to a portion adjacent to the central region thereof. A plurality of second discharge holes 220 may be defined in a top surface of the second blower 20. The plurality of second discharge holes 220 may be uniformly arranged to surround a portion of the top surface of the second blower 20 except for the portion where the guide member 40 is provided.

In an exemplary embodiment, the collection of the plurality of first discharge holes 120 may form a ring shape covering a peripheral area of the top surface of the first blower 10 in a plan view. The set of the plurality of second discharge holes 220 may form a ring shape covering a peripheral area of the top surface of the second blower 20. In one embodiment, the ring defined by the collection of the plurality of first discharge holes 110 may have an outer portion located at a higher vertical height than an inner portion thereof. The ring shape defined by the collection of the plurality of second discharge holes 210 may have an outer portion located at a higher vertical height than an inner portion thereof.

The top surface of the first blower 10 may include a peripheral region in which the plurality of first discharge holes 120 are disposed and a central region in which the second base 205 is disposed. The top surface of the second blower 20 may include a peripheral region in which the plurality of second discharge holes 220 are provided and a central region in which the guide member 40 is provided. In this regard, the central region of the top surface of the first blower 10 has a lower vertical height than the peripheral region thereof. A central area of the top surface of the second blower 20 may have a lower vertical height than a peripheral area thereof.

Hereinafter, the top surface of the first blower 10 is defined to mean only a central region where the second base 205 is disposed, except for a peripheral region where the plurality of first discharge holes 120 are disposed. The top surface of the second blower 20 is defined to refer only to the central area where the guide member 40 is disposed, except for the peripheral area where the plurality of second discharge holes 220 are disposed. In an exemplary embodiment, each of the top surface of the first blower 10 and the top surface of the second blower 20 may have a flat surface extending in a horizontal direction.

The flow regulating device 30 may include a rear case forming an external appearance and configured to define a rear surface of the flow regulating device 30, and a suction grill (grip) 310 configured to suck air discharged from the

blowers

10 and 20. The flow conditioning device 30 may include a front housing 300 secured to a rear housing and configured to define a front surface of the flow conditioning device 30. The front housing 300 may include a discharge grill 320 configured to discharge air sucked through the suction grill 310. The rear case includes: a rear panel 310 defining a rear surface of the flow conditioning device 30; and side panels 305 extending from the rear panel 310 to the front housing 300 so as to define side surfaces of the flow conditioning device 30. The rear panel 310 of the rear case 300 may be configured to function as a suction grill 310. That is, the combination of the side panels 305 and the rear panel 310 may form the rear case 300.

The guide member 40 may have various structures for causing the state transition of the flow adjustment device 30. For example, in fig. 1, one end of the guide member 40 is connected to the top surface of the second blower 20 and the other end thereof is connected to the flow regulation device 30, and as the other end of the guide member 40 is raised or lowered, a state transition of the flow regulation device 30 is caused. However, the concepts of the present disclosure are not necessarily limited thereto. That is, the guide member 40 may be controlled to be retracted into the inside of the

blowers

10 and 20 or extended from the top surfaces of the

blowers

10 and 20. Which will be described in detail later with reference to fig. 27 to 34.

In an exemplary embodiment, based on the operation of the guide member 40, the flow regulation device 30 may be oriented in a first position in which the top surface of the flow regulation device 30 is parallel to the top surface of the second blower 20, may be oriented in a second position in which the top surface of the flow regulation device 30 has a predetermined angle with respect to the top surface of the second blower 20, and may be oriented in a third position in which the top surface of the flow regulation device 30 is perpendicular to the top surface of the second blower 20.

Fig. 1 shows the flow regulating device 30 oriented in a third position. A detailed description of the configuration in which the flow adjustment device 30 is oriented in the first and second positions will be described below with reference to fig. 27 to 34.

Referring to fig. 2, the flow regulating device 30 may include: a front housing 300 defining a front surface of the flow regulating device 30; and a side panel 305 defining a side surface of the flow regulating device 30 to prevent air from entering the housing from the outside; a rear panel 310 defining a rear surface of the flow regulation device 30 and functioning as a suction grill 310; a blowing fan 360 disposed between the front case 300 and the rear panel 310 to blow the sucked air toward the discharge grill 320 through the rear panel 310; and a third filter member 350 configured to be seated on an inner surface of the rear panel 310 and disposed between the blowing fan 360 and the rear panel 310 so as to filter air sucked through the suction grill 310.

The display 500 is configured to display operation information of the air purifier 1, and may be disposed on a top surface of the flow adjustment device 30. The flow regulating device 30 and the display 500 may be configured to work together. In an exemplary embodiment, the display 500 may be configured to partially or fully cover the top surface of the flow regulating device 30.

The top surface of the flow regulation device 30 and the side wall of the front housing 300 may be configured to be spaced apart from each other. The discharge grill 320 may be provided in a space between the top surface of the flow adjustment device 30 and the sidewall of the front case 300 so as to discharge air to the outside. In a top view, the discharge grill 320 may have a structure surrounding the top surface of the flow conditioning device 30. Thus, air intake may be performed in any direction around the top surface of the flow conditioning device 30. In an exemplary embodiment, one side of the discharge grill 320 may be connected to the top surface of the flow adjustment device 30, and the other side of the discharge grill 320 may be connected to the inner wall of the front housing 300.

In an exemplary embodiment, when the flow regulating device 30 is oriented in the first position, one side of the discharge grill 320 and the other side of the discharge grill 320 may be disposed at different vertical heights. In one embodiment, when the flow conditioning device 30 is oriented in the first position, one side of the discharge grate 320 may be present at a higher elevation than the other side of the discharge grate 320.

The front case 300 and the rear case may be fastened to each other at the top thereof via first hook fasteners and at the bottom thereof via second hook fasteners.

In particular, the top portion of side panel 305 may be configured to include a first hook 333. The top portion of the front case 300 may be configured to include a first mating hook 335. The top portions of the side panels 305 and the top portion of the front case 300 may be fastened to each other via fastening between the first hooks 333 and the first counterpart hooks 335. Also, the bottom portion of the side panel 305 may be configured to include a pair of second mating hooks 345, which are symmetrical to each other in the horizontal direction. The bottom portion of the front case 300 may be configured to include a pair of second hooks 343 which are respectively disposed at positions corresponding to the second counterpart hooks. The bottom portions of the side panels 305 and the bottom portions of the front case 300 may be fastened to each other via fastening between the second counterpart hooks 345 and 343. In one embodiment, the bottom portion of side panel 305 may be configured to also include a magnet (not shown). The bottom portion of the front case 300 may be configured to further include a magnet counterpart (not shown) made of metal. The coupling between the bottom portions of the side panels 305 and the bottom portion of the front housing 300 may be guided via the coupling between the magnets and the magnet counterparts.

Referring to fig. 3, a third filter member 350 may be provided on the seating 340 at a boundary between the rear panel 310 and the side panel 305.

The seating 340 may have a protruding shape toward the front case instead of the rear panel, and may be configured to surround an edge of the rear panel 310.

In an exemplary embodiment, the inner surface of the rear panel 310 and the filter member 350 may contact each other, and may be configured to have the same area (area) as each other.

Referring to fig. 4, the rear housing of the flow regulation device 30 may be configured to be removable when the flow regulation device 30 is oriented in the third position. The filter member 350 may be configured to be detachable from the flow adjustment device 30 when the rear case is separated from the front case 300.

Specifically, in a state in which the flow adjustment device 30 is oriented in the third position, that is, in a state in which the top surface of the flow adjustment device 30 is oriented perpendicular to the top surface of the second blower 20, the fastening between the first hooks 333 and the first mating hooks 335 is released, so that the top of the side panel 305 and the top of the front case 300 may be separated from each other. Then, as the fastening between the second counterpart hook 345 and the second hook 343 is released, the bottom portions of the side panels 305 and the bottom portion of the upper case 300 may be separated from each other. In one example, the bottom portion of side panel 305 and the bottom portion of upper housing 300 also include a magnet and a magnet counterpart, respectively. Before releasing the fastening between the second pair of hooks 345 and 343, the fastening between the magnet and the magnet counterpart is released so as to cause separation between the bottom portions of the side panels 305 and the bottom portion of the upper case 300.

In an exemplary embodiment, the first and

second filter members

130 and 230 may be composed of filters identical to each other. The third filter 350 may be composed of a filter different from the first and

second filter members

130 and 230. In one embodiment, the first and

second filtering members

130 and 230 may be respectively composed of HEPA filters. The third filter member 350 may be embodied as a pre-filter (pre-filter).

As described above, after the air is filtered by the first filter member 130 and/or the second filter member 230, the air discharged from the

hair dryers

10 and 20 passes through the rear panel 310 of the flow conditioning device 30 and is sucked into the inside of the flow conditioning device 30. The foreign materials contained in the air may be further filtered while passing through the third filter member 350 contacting the inner surface of the rear panel 310. The third blowing fan 360 provided in the interior of the flow adjustment device 30 and the discharge grill 320 provided in the front case 300 of the flow adjustment device 30 may blow and discharge air in which foreign matters are additionally filtered. Therefore, due to the third filter member 350, the inside of the flow regulation device 30 may have only a small amount of foreign substances, so that the cleaning cycle of the inside of the flow regulation device 30 may be extended.

In one example, the rear case (i.e., the side panels 305 and the rear panel 310) may be easily separated from the front case 300 by releasing the first and second hook fasteners, respectively. Therefore, the internal cleaning of the flow regulation device 30 can be performed efficiently.

Also, the rear panel 310 serving as the suction grill 310 to suck air and the third filter member 350 disposed on the inner surface of the rear panel 310 may be separately washed after the rear case is separated from the front case 300. Therefore, maintenance of the flow adjustment device 30 can be easily performed.

Fig. 5 to 8 are a perspective view, a sectional view, and a side view for illustrating an air purifier according to an exemplary embodiment of the present disclosure. Specifically, fig. 5 is a perspective view for illustrating the overall structure of the air purifier. Fig. 6 is an enlarged perspective view of a region B in fig. 5. Fig. 7 is a sectional view for illustrating an internal structure of a second blower and a flow adjusting device included in the air cleaner. Fig. 8 is a side view showing an external structure of the second blower and the flow adjustment device. In this regard, fig. 6 is a view showing a cross section of the second blower and the flow adjustment device.

The air purifier described with reference to fig. 5-8 is substantially the same as or similar to the air purifier described with reference to fig. 1-4. As such, like reference numerals are used for like parts. Detailed description of the same parts will be omitted.

Referring to fig. 5, the air purifier 1 according to an exemplary embodiment of the present disclosure may include

blowers

10 and 20, a guide member 40, and a flow regulation device 30, which are sequentially stacked. In this regard, the

blowers

10 and 20 may include: a first blower 10 configured to suck, filter and blow air at a relatively low vertical height; and a second blower 20 disposed above the first blower 10 and configured to suck, filter, and blow air at a relatively high vertical height.

The first blower 10 may include: a first casing 100 defining an external appearance of the blower; a first filter member 130 disposed in a lower portion of the inside of the first case 100 so as to filter air; and a first blowing fan 160 provided in an upper portion of the inside of the first casing 100 so as to generate an air flow. The second blower 20 includes: a second case 200 defining an external appearance; a second filter member 230 disposed in a lower portion of the interior of the second case 200; and a second blowing fan 260 provided in an upper portion of the inside of the second casing 200 so as to generate an air flow.

In the sidewall of the first casing 100, a first suction hole 110 configured to suck air from the outside may be defined. Also, in the sidewall of the second case 200, a second suction hole 210 configured to suck air from the outside may be defined. A first discharge hole 120 configured to discharge air to the outside may be defined in a top surface of the first blower 10. Also, a second discharge hole 220 configured to discharge air to the outside may be defined in a top surface of the second blower 20.

Referring to fig. 6 to 8, in a state in which the top surface of the flow regulation device 30 and the top surface of the second blower 20 are oriented parallel to each other, the flow regulation device 30 and the second blower 20 are spaced apart from each other such that at least a portion of the air discharged from the second discharge hole 220 flows along the outer sidewall of the flow regulation device 30 and is discharged to the outside through the space between the flow regulation device 30 and the second blower 20.

The flow regulation device 30 may include a rear case forming an external appearance and configured to define a rear surface of the flow regulation device 30, and the rear case includes a suction grill 310, the suction grill 310 being configured to suck air discharged from the

hair dryers

10 and 20. The flow conditioning device 30 may include a front housing 300 secured to a rear housing and configured to define a front surface of the flow conditioning device 30. The front housing 300 may include a discharge grill 320 configured to discharge air sucked through the suction grill 310. The flow regulation device 30 may include a blowing fan 360 disposed between the front case 300 and configured to generate an air flow so as to discharge air sucked through the suction grill 310 through the discharge grill 320. The rear case includes: a rear panel 310 defining a rear surface of the flow conditioning device 30; and a side panel 305 extending from the rear panel 310 to the front housing 300 so as to define a side surface of the flow regulation device 30. The rear panel 310 of the rear case 300 may be configured to function as a suction grill 310. That is, the combination of the side panels 305 and the rear panel 310 may form the rear case 300.

In this regard, a portion of the rear case other than the portion where the suction grill 310 is disposed, that is, the portion where the side panel 305 is disposed, may be formed as a shielding structure so as to restrict air movement. Accordingly, the air discharged from the second discharge hole 220 may be drawn into the inside of the flow regulation device 30 only through the suction grill 310.

The back panel 310 and the side panels 305 may be integrally formed with each other. The side panels 305 and the front case 300 may be configured to be fastened to each other via, for example, hook and loop fastening.

Based on the operation of the guide member 40, the flow adjustment device 30 may be oriented in a first position, a second position, and a third position. When the flow conditioning device 30 is oriented in the first position, the side wall of the rear housing may be spaced apart from the side wall of the second blower 20.

In an exemplary embodiment, a sidewall of the second blower 20, i.e., a sidewall of the second housing 200, may be configured to have an inclined portion (tilt) perpendicular to the rear panel 310. The side panels 305 may be configured to have an inclined ramp relative to the back panel 310.

In an exemplary embodiment, each of the top and bottom surfaces of side panel 305 may be configured to have a ring shape. The perimeter of the bottom surface of side panel 305 may be configured to have a dimension that is smaller than the circumferential dimension of the top surface of side panel 305.

In an exemplary embodiment, the outer side wall of the side panel 305 may be configured to have a curved shape. In one embodiment, when the flow conditioning device 30 is oriented in the first position, the outer side walls of the side panels 305 may be configured to extend away from the second vent hole 220 as the side panels approach the front housing 300.

In an exemplary embodiment, when the flow conditioning device 30 is oriented in the first position, the second drain hole 220 may be configured to be partially covered by the rear grill 310 of the flow conditioning device 30. Accordingly, a portion of the air discharged from the second discharge hole 220 may be discharged to the outside along the outer sidewall of the side panel 305. The remaining portion of the air discharged from the second discharge hole 220 may be sucked into the inside of the flow regulation device 30 through the rear grill 310.

The second blower 20 is configured to be disposed above the second blowing fan 260 and may further include a guide member seating 270 configured such that the guide member 40 is seated thereon. The guide member seat 270 may be controlled to rotate clockwise or counterclockwise. Therefore, the moving direction of the guide member 40 can be freely adjusted in the circumferential direction.

The second blower 20 may further include a protrusion 280 configured to be disposed in the second discharge hole 220 and configured to increase a flow rate of air moving along the inner wall of the second housing 200. The protrusion 280 may have a shape protruding from the inner wall of the second housing 200 in a horizontal direction.

In one example, fig. 6 and 7 show only the structure of the second blower 20 and do not show the structure of the first blower 10. The first blower 10 may also include a protrusion (not shown) configured to be disposed in the first discharge hole 120 and configured to increase the flow rate of air moving along the inner wall of the first casing 100. The protrusion included in the first blower 10 may have a shape protruding from the inner wall of the first casing 100 in the horizontal direction. When the first blower 10 and the second blower 20 each include the protrusion, the protrusion included in the first blower 10 may be referred to as a first protrusion, and the protrusion included in the second blower 20 may be referred to as a second protrusion. However, hereinafter, for convenience of description, whether the first blower 10 includes the first protrusion is not specifically described. However, the second protrusion included in the second blower 20 will be referred to as the protrusion 280.

Each of the second blowing fan 260 provided in the interior of the second blower 20 and the third blowing fan 360 provided in the interior of the flow regulating device 30 may be embodied as a mixed flow fan.

In one example, fig. 6 and 7 show only the structure of the second blower 20, and do not show the structure of the first blower 10. However, the first blowing fan 16 provided in the interior of the first blowing fan 10 may be embodied as a mixed flow fan.

As described above, in a state in which the top surface of the flow regulation device 30 and the top surface of the second blower 20 are horizontally oriented, that is, in a state in which the flow regulation device 30 is oriented in the first position, the side panel 305 of the flow regulation device 30 and the second discharge hole 220 of the second blower 20 may be spaced apart from each other in the vertical direction. At least a portion of the air discharged from the second discharge hole 220 may be discharged to the outside through a space between the side panel 305 and the second discharge hole 220.

That is, due to the Coand γ effect in which the fluid jet tends to remain adhered to the convex surface, at least a part of the air blown upward in the vertical direction using the second blowing fan 260 may be blown out from a portion close to the inner wall of the second casing 200. Then, the air may be directly discharged to the outside through the second discharge hole 220 while bypassing the flow regulation device 30. Therefore, the components provided in the flow adjustment device 30 may not function as unnecessary resistance elements against the airflow. Thus, the speed of the air discharged from the second blower 20 is not reduced, and the blowing distance can be increased. In one example, when the second blower 20 further includes the protrusion 280, the speed of the air discharged from the second blower 20 may be increased.

Fig. 9 to 18 are a perspective view, a sectional view, a top view, and a side view illustrating an air purifier according to an exemplary embodiment of the present disclosure. Specifically, fig. 9, 11, 14, and 18 are perspective views. Fig. 10 and 17 are sectional views. Fig. 12 and 15 are plan views. Fig. 13 and 16 are side views. In this regard, fig. 9 is a perspective view illustrating the overall structure of the air cleaner. Fig. 10 is an enlarged sectional view of the region C of fig. 9. Fig. 11 to 18 are views illustrating an air passage controller included in the air cleaner.

Since the air purifier described with reference to fig. 9 to 18 is substantially the same as or similar to the air purifier described with reference to fig. 1 to 4, the same reference numerals are used for the same components. Detailed description of the same components will be omitted.

Referring to fig. 9, an air purifier 1 according to an exemplary embodiment of the present disclosure may include

blowers

10 and 20 may include: a first blower 10 configured to suck, filter and blow air at a relatively low vertical height; and a second blower 20 provided on the first blower 10 and configured to suck, filter and blow air at a relatively high vertical height.

The first blower 10 may include: a first casing 100 defining an external appearance of the blower; a first filter member 130 disposed in a lower portion of the inside of the first case 100 so as to filter air; and a first blowing fan 160 disposed at an upper portion of the inside of the first casing 100 to generate an air flow. The second blower 20 includes: a second case 200 defining an external appearance; a second filter member 230 disposed in a lower portion of the inside of the second case 200; and a second blowing fan 260 provided in an upper portion of the inside of the second casing 200 so as to generate an air flow.

In the sidewall of the first casing 100, a first suction hole 110 configured to suck air from the outside may be defined. Also, in the sidewall of the second case 200, a second suction hole 210 configured to suck air from the outside may be defined. In the top surface of the first blower 10, a first discharge hole 120 configured to discharge air to the outside may be defined. Also, in the top surface of the second blower 20, a second discharge hole 220 configured to discharge air to the outside may be defined.

Referring to fig. 10, the first blower 10 may further include: and a first air passage controller 170 provided on the first blowing fan 160 and in the interior of the first casing 100, and configured to control a flow area of air discharged from the first blowing fan 160. The first air passage controller 170 may be configured to selectively close a portion of a flow area in which air flows between the first blowing fan 160 and the first discharge hole 120 such that air discharged from the first blowing fan 160 is selectively concentrated at a specific region.

Although not shown, the second blower 20 may further include a second air passage controller (not shown) provided on the second blowing fan 260, located inside the second casing 200, and configured to control a flow area of air discharged from the second blowing fan 260. The second air passage controller may be configured to selectively close a portion of a flow area in which air flows between the second blowing fan 260 and the second discharge hole 220 such that air discharged from the second blowing fan 160 is selectively concentrated on a specific area.

Fig. 10 to 18 show only the first air passage controller 170 included in the first blower 10, but do not show the second air passage controller included in the second blower 20. However, the second air passage controller may be configured to have substantially the same or similar structure as the first air passage controller 170. Therefore, hereinafter, for convenience of description, only the first air passage controller 170 will be described in detail. A detailed description of the second air passage controller included in the second blower 20 will be omitted.

The first air passage controller 170 is configured to be rotatable, and is provided on the first blowing fan 160. The first air passage controller 170 may include: a first frame 170a configured to have a cylindrical shape; and a second frame 170b configured to have a top surface having the same vertical height as the upper surface of the first frame 170a, spaced apart from the first frame 170a, and having a ring shape surrounding the top of the first frame 170a.

Referring to fig. 11 to 13, the first air passage controller 170 may include an air passage control panel disposed between the first frame 170a and the second frame 170b. One end of the control panel is fixed to the first frame 170a, and the other end thereof is fixed to the second frame 170b. The control panel is configured to partially cover a space between the first frame 170a and the second frame 170b. The first air passage controller 170 may include an air passage control link 180 disposed in the interior of the first frame 170a. An air channel control link 180 may be connected to the other end of the air channel control panel and configured to cause the opening and closing of the air channel control panel. A concentrated air passage 190 may be provided on a portion of the space between the first frame 170a and the second frame 170b, which is not covered by the air passage control panel.

Also, the first air passage controller 170 may include a first actuator disposed inside the first frame 170a and configured to drive the ascent and descent of the air passage control link 180. The first air passage controller 170 may further include a second actuator disposed inside the first frame 170a and configured to drive the rotation of the first frame 170a. The first and second actuators may be spaced apart from each other and disposed in an inner space defined in the first frame 170a.

The first actuator may include: a first electric motor 183 for supplying electric power; a first shaft configured to protrude from one end of the first motor 183 and to be rotatable; and a first wheel 184 coupled to the first shaft. On a portion of an inner wall of the air passage control link 180, a first rail 187 extending in a vertical direction may be provided. The air channel control link 180 may be controlled such that the first wheel 184 ascends or descends while rotating in engagement with the first rail 187.

The second actuator may include: a second motor 173 for providing power; a second shaft configured to protrude from one end of the second motor 173 and to be rotatable; and a second wheel 174 secured to the second shaft. A second rail 177 extending in a horizontal direction horizontal to the ground may be provided on a portion of the inner wall of the first housing 100. The first frame 170a may be controlled to rotate in a circumferential direction along the inner wall of the first housing 100 when the second wheel 174 rotates in engagement with the second rail 177.

The air passage control panel may include a plurality of control panels 175 and a plurality of penetration members 171, the plurality of penetration members 171 penetrating the control panels 175, respectively, and being integrally formed with the control panels 175. Each penetration member 171 may be configured to sequentially extend through the second frame 170b, the control panel 175, and the first frame 170a along the horizontal direction.

In an exemplary embodiment, each control panel 175 may have an annular sector shape, wherein both the top and bottom sides of the trapezoid are circular. The plurality of control panels 175 may be arranged to partially fill a space between the first frame 170a and the second frame 170b.

The pass-through member 171 may be configured to extend through the first frame 170a in one horizontal direction, then extend on the top surface of the air passage control link 180, and then bend and extend in another horizontal direction different from the one horizontal direction.

In an exemplary embodiment, the pass-through member 171 may be configured to extend through the first frame 170a in a first direction of the horizontal direction, then extend on the top surface of the air passage control link 180, and then bend and extend in a second direction of the horizontal direction different from the first direction. In one embodiment, the first direction and the second direction may be mutually orthogonal.

Hereinafter, a portion of the penetration member 171 extending in the first direction will be referred to as a first portion. The portion of the penetration member 171 extending in the second direction will be referred to as a second portion.

Air channel control link 180 may include a through fastener 181 configured to protrude from the top surface. The pass-through member extending from the control panel 175 and passing through one end of the second frame 170b may be fastened to the second frame 170b. The penetrating member 171 extends from the control panel 175 and passes through the other end of the first frame 170a may pass through the penetrating fastener 181 and be fastened to the air passage control link 180.

In an exemplary embodiment, the air passage control link 180 may have a ring shape surrounded by an inner wall of the first frame 170a in a plan view. The sidewall of the first frame 170a may have a ring shape surrounding the outer peripheral surface of the air passage control link 180. The second frame 170b may have a ring shape spaced apart from the first frame 170a.

The plurality of control panels 175 included in the air passage control panel may be uniformly arranged in a space between the first frame 170a and the second frame 170b in a circumferential direction along the outer peripheral surface of the first frame 170a. The control panel 175 may be disposed in a portion of a space between the first frame 170a and the second frame 170b. Accordingly, a concentrated air passage 190, through which the air discharged from the first blowing fan 160 may be concentrated, may be provided in a portion of the space that is not covered by the control panel 175.

The concentrated air channel 190 may be generated only when the air channel control link 180 is raised via the first actuator control air channel. When the air channel control link 180 is lowered via the first actuator, the channel 190 may not be created.

In an exemplary embodiment, in a state where the air passage control link 180 has ascended, the top portion of the through fastener 181 may protrude upward beyond the first and

second frames

170a and 170b in the vertical direction.

Referring to fig. 14 to 16, the air passage control link 180 may be controlled to descend via the first actuator. Thus, the air passage control panel can be opened.

Specifically, as the first wheel 184 of the first actuator rotates in engagement with the first track 187 disposed on the inner surface of the air channel control link 180 in order to control the air channel control link 180 to descend, the through fastener 181 disposed on the top surface of the air channel control link 180 descends along with the air channel control link 180. The portion of the penetration member 171 fastened to the penetration fastener 181, that is, the second portion of the penetration member 171 bent and extending in the second direction moves downward in the vertical direction. The remaining portion of the pass through member 171 other than the second portion of the pass through member 171 (i.e., the first portion extending in the first direction of the pass through member 171) may be rotated clockwise or counterclockwise. The control panel 175 fixed to the first portion of the pass-through member 171 may rotate together with the pass-through member 171.

Accordingly, as the plurality of control panels 175 are individually rotated, the air passage control panel may be partially opened. The air discharged from the first blowing fan 160 may move through a specific portion of the space between the first frame 170a and the second frame 170b. In this regard, the specific portion of the space refers to a space where the concentrated air channel 190 is not provided.

Fig. 16 shows that each of the plurality of control panels 175 is rotated to form an angle not perpendicular to the second frame 170 in a side view. However, the concepts of the present disclosure are not necessarily limited thereto. Each of the plurality of control panels 175 may be rotated to form an angle perpendicular to the second frame 170.

Although not shown in the drawings, the bottom surface of the first frame 170a may be configured to have first and second openings defined at positions corresponding to the outer peripheral portion of the air passage control link 180 and the lower portion of the first rail 187, respectively. The first opening may refer to a region where the outer peripheral portion of the air passage control link 180 passes through the bottom surface of the first frame 170a in a vertical direction when the air passage control link 180 descends. The second opening may refer to a region where a lower portion of the first rail 187 passes through the bottom surface of the first frame 170a in a vertical direction when the air passage control link 180 descends.

In an exemplary embodiment, in a state where the air passage control link 180 has been lowered, a lower portion of the through fastener 181 may protrude downward in a vertical direction beyond a bottom surface of the first frame 170a.

Referring to fig. 17, a first track 187 may correspond in position to the first wheel 184. Thus, the raising and lowering of the link 180 may be controlled by the first actuator controlling air passage.

Referring to fig. 18, the second rail 177 may be positioned in contact with the second wheel 174. Thus, the rotation of the air passage control link 180 in the circumferential direction may be controlled by the second actuator.

Although not shown, the first frame 170a may include a third opening that passes through a bottom surface of the first frame 170a in a vertical direction. A second shaft secured to the second actuator and the second wheel 174 may move in the circumferential direction and along the third opening. The third opening may be formed to partially pass through the lower surface of the first frame 170a in a circumferential direction around a central region of the bottom surface of the first frame 170a.

In an exemplary embodiment, when the first frame 170a is rotated in one direction via the second actuator, the other end of the air passage control panel fixed to the first frame 170a may be rotated in the one direction. Accordingly, the concentrated air channel 190 may be controlled to rotate in the one direction.

As described above, when the air passage control link 180 has been lowered via the first actuator, the other end of the through member 171 fastened to the through fastener 181 is lowered therewith, so that the control panel 175 integrally formed with the through member 171 may be rotated in the one direction, so that the air passage control panel may be controlled to be opened. Accordingly, when the air passage control link 180 is controlled to ascend, a portion of a flow area through which air flows between the first blowing fan 160 and the first discharge hole 120 may be selectively closed. Accordingly, the air discharged from the first blowing fan 160 may be controlled to be selectively blown to a specific area.

Conversely, when the air passage control link 180 is raised via the first actuator, the other end of the through member 171, which is fastened to the through fastener 181, is raised together therewith, whereby the control panel 175, which is integrally formed with the through member 171, may be rotated in a direction opposite to the one direction, so that the air passage control panel may be controlled to be closed. Accordingly, when the air passage control link 180 is controlled to be lowered, the whole of the flow area through which the air flows between the first blowing fan 160 and the first discharge hole 120 may be opened. Accordingly, the air discharged from the first blowing fan 160 may be controlled to be uniformly blown to all regions.

Also, the air passage control panel 180 may be rotated along the inner wall of the first housing 100 in the circumferential direction via the second actuator. Accordingly, the collecting air passage 190 may be controlled to rotate in the circumferential direction.

Fig. 19 to 26 are a perspective view and a sectional view for explaining an air purifier according to an exemplary embodiment of the present disclosure. Specifically, fig. 19 and 20 are a perspective view and a sectional view for explaining the overall structure of the air purifier. Fig. 21, 22 and 23 are drawings for explaining a first filter member and a first foreign matter purifier included in an air purifier. Fig. 24, 25 and 26 are enlarged perspective views of the region D in fig. 19, respectively.

Since the air cleaner described with reference to fig. 19 to 26 is substantially the same as or similar to the air cleaner described with reference to fig. 1 to 4, the same reference numerals are used for the same components, and detailed description of the same components will be omitted.

Referring to fig. 19 and 20, the air purifier 1 according to an exemplary embodiment of the present disclosure may include the

blowers

10 and 20, the guide member 40, and the flow regulation device 30, which are sequentially stacked. In this regard, the

blowers

The first blower 10 may include: a first casing 100 defining an external appearance of the blower; a first filter member 130 disposed in a lower portion of the inside of the first case 100 so as to filter air; and a first blowing fan 160 disposed in an upper portion of the inside of the first casing 100 to generate an air flow. The second blower 20 includes: a second case 200 defining an external appearance; a second filter member 230 disposed in a lower portion of the interior of the second case 200; and a second blowing fan 260 disposed in an upper portion of the inside of the second case 200 to generate an air flow.

In a sidewall of the first casing 100, a first suction hole 110 configured to suck air from the outside may be defined. Also, in the sidewall of the second case 200, a second suction hole 210 configured to suck air from the outside may be defined. A first discharge hole 120 configured to discharge air to the outside may be defined in a top surface of the first blower 10. Also, a second discharge hole 220 configured to discharge air to the outside may be defined in a top surface of the second blower 20.

The first blower 10 further includes a third actuator positioned below the first filter member 130 and configured to rotate the first filter member 130, and the first foreign substance purifier is configured to at least partially contact an outer sidewall of the first filter member 130. The first filter member 130 may be rotated via a third actuator. When the outer sidewall of the first filter member 130 contacts the first foreign matter purifier, foreign matters existing on the outer sidewall of the first filter member 130 can be removed.

Although not shown, the second blower 20 further includes: a fourth actuator positioned below the second filter member 230 and configured to rotate the second filter member 230; and a second foreign matter purifier configured to at least partially contact an outer sidewall of the second filter member 230. The second filter member 230 may be rotated via a fourth actuator. When the outer sidewall of the second filter member 230 contacts the second foreign substance cleaner, the foreign substances existing on the outer sidewall of the second filter member 230 can be removed.

The fourth actuator and the second foreign matter purifier included in the second blower 20 may be configured to have the same or similar structures as the third actuator and the first foreign matter purifier included in the first blower 10, respectively. Therefore, hereinafter, for convenience of description, only the third actuator and the first foreign matter purifier included in the first blower 10 will be described in detail. A detailed description of the fourth actuator and the second foreign matter purifier included in the second blower 20 will be omitted.

Referring to fig. 21 to 23, the first foreign material purifier may include: a first dust collecting plate 140 configured to form a portion of a sidewall of the first housing 100; a first foreign material cleaning module 145 fixed to an inner wall of the first dust collecting plate 140 and configured to contact an outer sidewall of the first filter member 130; a first through hole 149a configured to pass through a sidewall of the first dust collection plate 140; and a door 155 provided at an outer sidewall of the case to open or close the first through hole 149a.

The third actuator may include: a third motor 131 for supplying power; a third shaft configured to protrude from one end of the third motor 131 and to be rotatable; and a third wheel 132 secured to the third shaft.

Between the first filter member 130 and the third actuator, the first lower plate 125 may be disposed below the first filter member 130, and may be configured to rotate the first filter member 130. A third rail 133 extending in a circumferential direction around a central region of the first lower plate 125 may be disposed under the first lower plate 125. The third wheel 132 may be configured to rotate in engagement with the third rail 133. Accordingly, the first filter member 130 may be controlled to rotate in the circumferential direction along the inner wall of the first lower plate 125 via the third actuator.

Referring to fig. 20 and 21 together, a first upper plate may be formed on the first filter member 130. Between the first filter member 130 and the first upper plate, a first bearing 135 configured to reduce a frictional force generated when the first filter member 130 rotates may be provided.

As the first filter member 130 is rotated via the third actuator, the foreign substances attached to the outer sidewall of the first filter member 130 are separated therefrom by the first foreign substance cleaning module 145 and then discharged through the first through hole 149a. In one embodiment, the first through hole 149a may be provided at a central region of the sidewall of the first dust collection plate 140.

The first foreign substance cleaning module 145 may include: a first foreign-matter cleaning member 145a extending in a vertical direction and configured such that both ends thereof are fixed to the top and bottom of the inner wall of the first dust collection plate 140, respectively; and a second foreign substance cleaning member 145b extending in the vertical direction and fixed to the first foreign substance cleaning member 145a. The first and second foreign substance cleaning members 145a and 145b may be sequentially stacked in a direction from the first dust collection plate 140 toward the first filter member 130. In this regard, the first foreign substance cleaning member 145a may be disposed near an outer sidewall of the first filter member 130. The second foreign substance cleaning member 145b may contact an outer sidewall of the first filter member 130.

In an exemplary embodiment, the first foreign substance cleaning member 145a may be made of a rubber material in order to remove relatively large foreign substances. The second foreign substance cleaning member 145b may be embodied as a brush in order to remove relatively small foreign substances.

The inner wall of the first dust collecting plate 140 may have a concave shape toward the first through hole 149a. The first foreign substance cleaning module 145 may be configured to extend across the inner wall of the first dust collection plate 140 in a vertical direction.

The hollow space between the first filter member 130 and the inner wall of the first dust collecting plate 140 may be used as an air passage through which foreign substances removed from the outer sidewall of the first filter member 130 by the first foreign substance cleaning module 145 may move, except for the region where the first foreign substance cleaning module 145 is disposed.

In one example, the first housing 100 may further include a second through hole 149b configured to pass through a sidewall of the first housing 100 and corresponding in position to a position where the first through hole 149a is provided. The combination of the first through hole 149a and the second through hole 149b may define the first through hole 149. The diameter of the second through hole 149b may be larger than that of the first through hole 149a.

The shock-absorbing member 150 may be disposed between the first through hole 149a and the second through hole 149 b. The vibration absorbing member 150 may be made of an elastic rubber material in order to mitigate the impact generated when the external foreign object cleaner approaches the first through hole 149.

In an exemplary embodiment, the shock-absorbing member 150 may be configured to have a ring shape in which a central portion is hollow. The diameter of the ring may be smaller than the diameter of the second through hole 149b and greater than or equal to the diameter of the first through hole 149a.

In one example, the vibration absorbing member 150 may include a detection sensor capable of recognizing an external foreign matter purifier. The third actuator may be controlled to be activated when the detection sensor detects the external foreign matter cleaner.

To illustrate the inner walls of the third rail 133, the third wheel 132 is not shown in fig. 22. To avoid duplicate explanation, fig. 23 does not show the third motor 131. However, one of ordinary skill in the art to which the present disclosure pertains can readily appreciate that the third wheel 132 is engaged with the top of the third motor 131 and rotates along the third track 133 disposed between the first lower plate 125 and the third motor 131.

Referring to fig. 24 to 26, a first door 155 for opening or closing the first and second through

holes

149a and 149b may be provided on an outer sidewall of the first case 100. The first door 155 may be configured to move on and along an outer sidewall of the first housing 100 in an up-down direction or a left-right direction.

Fig. 24 to 26 show that the first door 155 is configured to be movable up and down in the vertical direction. More specifically, fig. 24 shows the first door 155 closed. Fig. 25 shows the first door 155 opened. Fig. 26 illustrates that the first filter member 130 disposed in the interior of the first housing 100 is cleaned using an external foreign matter cleaner when the first door 155 is opened.

In one embodiment, the third actuator may be activated only when the first door 155 is open. The third actuator may be deactivated when the first door 155 is in the closed state.

As described above, the first filter member 130 disposed in the interior of the first blower 10 may be controlled to rotate in the circumferential direction via the third actuator disposed below the first filter member 130. Foreign substances attached to the outer sidewall of the first filter member 130 may be separated therefrom using the first foreign substance cleaning module 145 configured to at least partially contact the outer sidewall of the first filter member 130. Thereafter, foreign substances separated from the first filter member 130 may be removed through the first through-hole 149 using an external foreign substance cleaner disposed outside the first blower 10. Therefore, the user of the air purifier 1 can easily clean the first filter member 130 disposed inside the first blower 10 without disassembly.

Fig. 27 to 34 are a perspective view, a sectional view, and a rear view for explaining an air purifier according to an exemplary embodiment of the present disclosure. Specifically, fig. 27 is a perspective view for explaining the overall structure of the air purifier. Fig. 28 to 34 are an enlarged sectional view and an enlarged rear view of a region E in fig. 27. In this regard, fig. 28 to 34 are views for explaining a flow regulating device and a guide member included in the air cleaner.

Since the air purifier described with reference to fig. 27 to 34 is substantially the same as or similar to the air purifier described with reference to fig. 1 to 4, the same reference numerals are used for the same components, and detailed description of the same components will be omitted.

Referring to fig. 27, the air purifier 1 according to an exemplary embodiment of the present disclosure may include the

blowers

The first blower 10 may include: a first casing 100 defining an external appearance of the hair dryer; a first filter member 130 disposed in a lower portion of the inside of the first case 100 so as to filter air; and a first blowing fan 160 provided in an upper portion of the inside of the first casing 100 so as to generate an air flow. The second blower 20 includes: a second case 200 defining an external appearance; a second filter member 230 disposed in a lower portion of the interior of the second case 200; and a second blowing fan 260 provided in an upper portion of the inside of the second casing 200 so as to generate an air flow.

The flow regulation device 30 may be provided on the second blower 20, and may be configured to suck air discharged from the second blower 20 and control a discharge direction of the sucked air.

The guide member 40 may be configured such that one end thereof is introduced into the inside of the second blower 20 and the other end thereof is connected to the flow regulation device 30. The guide member 40 may be controlled to be retracted into the inside of the second blower 20 or extended from the top surface of the second blower 20 so as to cause the state transition of the flow adjustment device 30. In an exemplary embodiment, the angle formed between the top surface of the flow adjustment device 30 and the top surface of the second blower 20 may be increased or decreased depending on the extent to which the guide member 40 extends from the top surface of the second blower 20.

According to the operation of the guide member 40, the orientation of the flow regulation device 30 may be switched among a first position in which the top surface of the flow regulation device 30 is parallel to the top surface of the second blower 20, a second position in which the top surface of the flow regulation device 30 is oriented to form a predetermined angle with respect to the top surface of the second blower 20, and a third position in which the top surface of the flow regulation device 30 is perpendicular to the top surface of the second blower 20.

Fig. 28 and 29 show the flow adjustment device 30 oriented in the first position.

Referring to fig. 28 and 29, the guide member 40 may include: a housing 400 defining an external appearance, having one end configured to enter the inside of the second blower 20, and configured to extend from the upper surface of the second blower 20; and an inner case 405, one end of which is introduced into the inside of the outer case 400 and the other end of which is connected to the flow regulation device 30. The other end of the inner housing 405 is configured to extend from the other end of the outer housing 400 opposite the end of the outer housing 400 received inside the second blower 20. The outer case 400 may have a structure partially surrounding the inner case 405.

In an exemplary embodiment, the housing 400 may have a substantially curved cylindrical shape. The inner shell 405 has a cylindrical dimension that is relatively smaller than the cylindrical dimension of the outer shell 400. In this regard, the cylindrical shape of the housing 400 is configured such that the top surface thereof is open. The inner shell 405 may be introduced into the interior of the outer shell 400 or may extend from the open top surface of the outer shell 400.

The angle defined between the top surface of the flow adjustment device 30 and the top surface of the second blower 20 may increase or decrease depending primarily on the extent to which the housing 400 extends from the second blower 20. The angle defined between the top surface of the flow adjustment device 30 and the top surface of the second blower 20 may secondarily increase or decrease further depending on the degree to which the inner housing 405 extends from the outer housing 400.

In an exemplary embodiment, the housing 400 may be introduced into the interior of the second blower 20 and may not be exposed to the exterior when the flow conditioning device 30 is oriented in the first position.

The guide member 40 includes: a fourth actuator 420 disposed inside the second blower 20 and adjacent to an outer surface of the casing 400; and a fifth actuator 430 disposed inside the inner housing 405 and adjacent to the inner surface of the outer housing 400.

The fourth actuator 420 may include: a fourth motor 421 for supplying electric power; a fourth shaft 423 configured to protrude from one end of the fourth motor 421 and to be rotatable; and a fourth wheel 425 secured to the fourth shaft 423. The fifth actuator 430 may include: a fifth motor 431 to supply power; a fifth shaft 433 configured to protrude from one end of the fifth motor 431 and to be rotatable; and a fifth wheel 435 secured to fifth shaft 433.

Referring to fig. 29 and 34 together, the housing 400 may include: a first guide rail 410 configured to extend across an outer surface of the housing 400 in a longitudinal direction thereof; and a second guide rail 410b configured to extend across the inner surface of the housing 400 in the longitudinal direction. Each of the first and

second guide rails

410a and 410b may extend across the central region along the longitudinal direction of the housing 400. The first guide rail 410a and the second guide rail 410b may face each other. The first guide rail 410a and the second guide rail 410b may be integrally formed with each other to form the guide rail 410.

Referring to fig. 29 and 34 together, the inner case 405 may include: a channel 407 configured to extend across the outer surface of inner housing 405 in a longitudinal direction; and a fourth opening oriented through a portion of trench 407.

The channel 407 may have a concave shape into the outer surface of the inner housing 405. The groove may correspond in position to the second guide rail 410b. That is, the second guide rail 410b formed on the inner surface of the outer case 400 may have a shape protruding toward the outer surface of the inner case 405. In this regard, the channel 407 has a concave shape into the outer surface of the inner housing 40. In this way, the inner case 405 may extend from the outer case 400 without being caught by the second guide rail 410b.

The fourth opening may have various shapes such as a polygonal shape and/or a circular shape. The fourth opening may correspond in position to the fourth wheel 435 of the fourth actuator 430. That is, the fourth wheel 435 may be engaged with the second guide rail 410b formed on the inner surface of the case 400 through the fourth opening. As the fourth wheel 435 rotates, the inner shell 405 may retract into the outer shell 400 or extend from the outer shell 400.

In an exemplary embodiment, the fourth opening may be closer to one end of the inner housing 405 that is introduced into the interior of the outer housing 400 than the other end of the inner housing 405 that is connected to the flow regulation device 30.

A fourth wheel 425 disposed in the interior of the second blower 20 may be configured to rotate in engagement with the first guide track 410 a. A fifth wheel 435 disposed in the interior of the inner housing 405 may be configured to rotate in engagement with the second guide rail 410b. In an exemplary embodiment, the fifth wheel 435 may be closer to an end of the inner housing 405 that is introduced into the interior of the outer housing 400 than the other end of the inner housing 405 that is connected to the flow regulation device 30.

Fig. 30 and 31 show the flow adjustment device 30 oriented in the second position.

Referring to fig. 30 and 31, the vertical orientation of flow adjustment device 30 may be switched between the first position to the second position based on rotational movement of fourth wheel 425 included in fourth actuator 420. In this case, the fifth wheel 435 included in the fifth actuator 430 may be controlled not to rotate.

Specifically, the rotational movement of the housing 400 via the fourth wheel 425 may be controlled to retract into the interior of the second blower 20 or extend from the top surface of the second blower 20. Thus, the vertical orientation of the flow adjustment device 30 may be switched between the first and second positions.

That is, the housing 400 may extend from the top surface of the second blower 20 as it rotates in one direction while the fourth wheel 425 is engaged with the first guide rail 410 a. In this way, the flow regulating device 30 may be raised. Conversely, as the fourth wheel 425 engages with the first guide rail 410a and rotates in the direction opposite to the one direction, the housing 400 may be introduced into the inside of the second blower 20. In this case, the flow regulating device 30 may be lowered.

In an exemplary embodiment, the fifth wheel 435 may be controlled not to rotate until the flow regulation device 30 is oriented in the second position, and may be controlled to rotate only after the flow regulation device 30 is oriented in the second position.

In an exemplary embodiment, when the flow conditioning device 30 is oriented in the second position, the outer housing 400 may extend at least partially from the second blower 20 and be exposed to the outside, while the inner housing 405 is retracted into the interior of the outer housing 400 and not exposed to the outside.

Fig. 32-34 illustrate the flow regulating device 30 oriented in a third position.

Referring to fig. 32-34, the flow adjustment device 30 may be oriented in the second or third position based on rotational movement of the fifth wheel 435 included in the fifth actuator 430.

Specifically, the inner housing 405 may be controlled to retract into the outer housing 400 or extend from the outer housing 400 via rotational movement of the fifth wheel 435. Thus, the flow regulating device 30 may be oriented in the second position or the third position.

That is, as the fifth wheel 435 is engaged with the second guide rail 410b through the fourth opening and then rotated in one direction, the inner housing 405 may extend from the other end of the outer housing 400. In this case, the flow regulating device 30 may be raised. In contrast, as the fifth wheel 435 is engaged with the second guide rail 410b through the fourth opening and then rotated in a direction opposite to the one direction, the inner housing 405 may be introduced into the inside of the outer housing 400. In this case, the flow regulating device 30 may be lowered.

In an exemplary embodiment, the housing 400 may extend from the second blower 20 and be exposed to the outside when the flow conditioning device 30 is oriented in the third position. The inner case 405 may extend from the outer case 400 and may be exposed to the outside.

As described above, the air purifier 1 according to the exemplary embodiment of the present disclosure may include the

blowers

10 and 20, the guide member 40, and the flow regulation device 30, which are sequentially stacked. The guide member 40 may include: a housing 400 configured to be retracted into the inside of the

blowers

10 and 20 or extended from the top surfaces of the

blowers

10 and 20; and an inner case 405 configured to be retracted into the inside of the outer case 400 or extended from the outer case 400.

In this regard, the angle formed between the top surface of the flow adjustment device 30 and the top surfaces of the

blowers

10 and 20 may be increased primarily due to the extension of the housing 400 from the blower 20. The angle may then be further increased due to the extension of the inner shell 405 from the outer shell 400.

Thus, the top surface of the flow conditioning device 30 may be oriented perpendicular to the top surface of the

blowers

10 and 20. Thus, the air discharged from the blowing fan 20 is blown farther by the flow regulating device 30.

Although various embodiments of the present disclosure have been described in detail above, those of ordinary skill in the art to which the present disclosure pertains will appreciate that various modifications can be made to the above-described embodiments without departing from the scope of the present disclosure. Therefore, the scope of the claims of the present invention should not be limited to the described embodiments, but should be determined by the claims and their equivalents.

Claims

1. An air purifier, comprising:

a hair dryer, comprising:

a housing for defining an appearance of the blower;

a suction hole defined in a sidewall of the housing to suck air from the outside;

a filter member disposed within the housing to filter the inhaled air;

a blowing fan disposed within the housing and on a top surface of the filter member so as to discharge the filtered air;

an air passage controller provided on the blowing fan and within the case, and configured to adjust a flow area of air discharged from the blowing fan; and

a discharge hole defined on the air passage controller so as to pass through the housing, and configured to discharge air discharged from the blowing fan;

a flow regulating device provided on the blower and configured to change a discharge direction of air discharged from the blower; and

a guide member provided between the blower and the flow adjustment device, wherein one end of the guide member is connected to the blower and the other end thereof is connected to the flow adjustment device, wherein the guide member is configured to cause a state transition of the flow adjustment device,

wherein the air passage controller is configured to selectively close a portion of a flow area through which air flows between the blowing fan and the discharge hole such that the air discharged from the blowing fan is selectively concentrated at a specific region.

2. The air purifier of claim 1 wherein the air channel controller comprises:

a first frame rotatably provided on the blowing fan and having a cylindrical shape;

a second frame configured to have a top surface having the same vertical height as the top surface of the first frame, the second frame being spaced apart from the first frame and having a ring shape surrounding a top of the first frame;

an air passage control panel disposed between the first frame and the second frame, wherein one end of the air passage control panel is fixed to the first frame and the other end thereof is fixed to the second frame, wherein the control panel is configured to partially cover a space between the first frame and the second frame; and

an air channel control link disposed within the first frame, wherein the air channel control link is connected to the other end of the air channel control panel and is configured to cause opening and closing of the air channel control panel,

wherein a concentrated air passage is provided on a portion of a space between the first frame and the second frame, which is not covered by the air passage control panel.

3. The air purifier of claim 2 wherein the air channel controller further comprises:

a first actuator disposed within the first frame and configured to drive the air channel control link to ascend and descend; and

a second actuator disposed within the first frame and configured to drive rotation of the first frame,

wherein the first actuator and the second actuator are spaced apart from each other.

4. The air purifier of claim 3, wherein the first actuator comprises:

the first motor is used for providing power;

a first shaft configured to protrude from one end of the first motor and configured to be rotatable; and

a first wheel coupled to the first shaft,

wherein the first track extends in a vertical direction perpendicular to the ground and is provided on a portion of an inner wall of the air passage control link,

wherein the raising and lowering of the air channel control link is controlled while the first wheel rotates in engagement with the first track.

5. The air purifier of claim 4, wherein a bottom surface of the first frame is configured to have a first opening and a second opening defined at locations corresponding to a peripheral portion of the air channel control link and a lower portion of the first rail, respectively,

wherein the first opening refers to a region where an outer peripheral portion of the air passage control link passes through a bottom surface of the first frame in the vertical direction when the air passage control link descends,

wherein the second opening refers to a region where a lower portion of the first rail passes through a bottom surface of the first frame in the vertical direction when the air passage control link descends.

6. The air purifier of claim 4 wherein the air passage control panel includes a plurality of control panels and a plurality of pass-through members that pass through the control panels, respectively, and are integrally formed with the control panels,

wherein each of the pass-through members is configured to extend sequentially through the second frame, each of the control panels, and the first frame in a first direction parallel to the ground.

7. The air purifier of claim 6 wherein each of the pass-through members is configured to pass through the first frame in the first direction, then extend over a top surface of the air passage control link, and then bend and extend in a second direction different from the first direction.

8. The air purifier of claim 7 wherein the first direction and the second direction are orthogonal to each other.

9. The air purifier of claim 7 wherein the air passage control link includes a plurality of pass-through fixtures configured to protrude from a top surface thereof,

wherein one end of each of the penetrating members extending from each of the control panels and passing through the second frame is fastened to the second frame,

wherein the other end of each of the through members extending from each of the control panels and passing through the first frame is fastened to each of the through fixtures.

10. The air cleaner of claim 9, wherein when the air passage control link is lowered by the first actuator, the other end of each of the pass-through members is lowered together such that each of the control panels integrally formed with each of the pass-through members is rotated in one direction such that the air passage control panels are controlled to be opened,

wherein when the air passage control link is raised by the first actuator, the other end of each of the through-members is raised together so that each of the control panels integrally formed with the through-members is rotated in a direction opposite to the one direction, so that the air passage control panels are controlled to be closed.

11. The air purifier of claim 6 wherein each of the control panels has a trapezoidal annulus sector shape with rounded top and bottom edges.

12. The air purifier of claim 11, wherein the control panel is arranged to partially cover a space between the first frame and the second frame.

13. The air purifier of claim 3, wherein the second actuator comprises:

a second motor for providing electrical power;

a second shaft configured to protrude from one end of the second motor and configured to be rotatable; and

a second wheel coupled to the second shaft,

wherein a second rail is provided on a portion of an inner wall of the housing of the blower, the second rail extending in a horizontal direction horizontal to the ground,

wherein rotation of the first frame is controlled while the second wheel rotates in engagement with the second track.

14. The air cleaner of claim 13, wherein when the first frame is rotated in one direction by the second actuator, the other end of the air passage control panel fixed to the first frame is rotated in the one direction, and thus, the concentrated air passage is also controlled to be rotated in the one direction.

15. The air purifier of claim 2 wherein the air passage control link has an annular shape in plan view surrounded by an inner wall of the first frame.

16. The air purifier of claim 1, wherein the blower comprises: a first blower configured to filter and blow air at a relatively low vertical height; and a second blower configured to filter and blow air at a relatively high vertical height, wherein the first blower and the second blower are sequentially stacked in a vertical direction perpendicular to a floor surface,

wherein the first blower includes: a first housing for defining an appearance of the first blower; a first filter member disposed in a lower portion of an interior of the first housing so as to filter air; and a first blowing fan provided in an upper portion of an inside of the first case so as to generate an air flow,

wherein the second blower comprises: a second casing for defining an external appearance of the second blower; a second filter member disposed in a lower portion of an inside of the second case so as to filter air; and a second blowing fan provided in an upper portion of an inside of the second case so as to generate an air flow,

wherein the air passage controller is provided in at least one of the first blower and the second blower.

17. The air purifier of claim 16 wherein the air channel controller is comprised of a first air channel controller and a second air channel controller,

wherein the first air passage controller is provided in the first blower, an

Wherein the second air passage controller is provided in the second blower.

18. An air purifier, comprising:

a hair dryer, comprising:

a housing for defining an appearance of the blower;

a filter member disposed within the housing to filter the sucked air;

an air passage controller provided on the blowing fan and within the housing and configured to adjust a flow area of air discharged from the blowing fan, the air passage controller including a first frame rotatably provided on the blowing fan and having a cylindrical shape, and a second frame having a ring shape surrounding at least a portion of the first frame; and

a discharge hole defined on the air passage controller to pass through the housing and configured to discharge air that has been discharged from the blowing fan; and

a flow regulating device provided on the blower and configured to change a discharge direction of air discharged from the blower;

wherein the air passage controller further comprises an air passage control panel disposed between the first frame and the second frame and configured to partially cover a space between the first frame and the second frame; and

19. The air purifier of claim 18 wherein the air passage controller further comprises an air passage control link disposed within the first frame, and

wherein the air passage control link is connected to the other end of the air passage control panel and is configured to cause opening and closing of the air passage control panel.

20. The air purifier of claim 19 wherein the air channel controller further comprises: a first actuator disposed within the first frame and configured to drive the air passage control link to ascend and descend; and a second actuator disposed within the first frame and configured to drive rotation of the first frame,

wherein the air passage control panel is controlled to open when the air passage control link is lowered by the first actuator, an

Wherein the air channel control panel is controlled to close when the air channel control link is raised by the first actuator.