CN111853993B

CN111853993B - Air cleaner

Info

Publication number: CN111853993B
Application number: CN202010738737.9A
Authority: CN
Inventors: 朴裁均; 河炫滭; 郑淳起; 文煐喆; 裴寿铉; 尹相俊
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2016-02-26
Filing date: 2016-11-30
Publication date: 2022-01-28
Anticipated expiration: 2036-11-30
Also published as: JP6700409B2; CN111853993A; JP2019512078A

Abstract

The present disclosure provides an air cleaner, which may include: a cylindrical housing including an inlet through which air is drawn into the cylindrical housing in a radial direction; a filter configured to be detachably disposed in the cylindrical housing and having a cylindrical shape; and a filter frame configured to support the filter. The filter frame may include a lower frame disposed at a lower portion of the filter; an upper frame disposed at an upper portion of the filter; and a plurality of support frames extending from the lower frame to the upper frame. An inlet portion for sucked air may be formed between the plurality of support frames, the inlet portion being configured to receive the filter. With the air cleaner, suction capacity is improved, and a structural resistance of the housing is not generated during air suction, and a suction area of air can be increased.

Description

Air cleaner

This application is a divisional application of an invention patent application (application date is 2016, 11, 30, application No. 201611088199.3, entitled "air cleaner") by LG electronic corporation.

Technical Field

Disclosed herein is an air cleaner (air purifier).

Background

An air cleaner is a device that sucks and purifies polluted air and then discharges the purified air. For example, the air cleaner may include a blower fan that introduces external air into the air cleaner and a filter that can filter out dust, bacteria, and the like.

Generally, an air cleaner is configured to purify an indoor space, such as a home or an office. According to the air cleaner in the related art, there is a problem in that: its capacity is limited and thus the purification of the entire indoor space is limited. Therefore, the air around the air cleaner is purified, but the air in the space far from the air cleaner is not purified.

In order to solve the problem, efforts have been made to improve the performance of a fan provided in an air cleaner. However, since the blowing amount of the fan is large, noise generated from the fan gradually increases. Therefore, there is a problem that reliability of the product is lowered. Finally, there is an inconvenience that: the user can move the air cleaner to purify the air in the desired space.

The related art air cleaner is disclosed in korean laid-open patent document KR10-2012-0071992 entitled "AIR CLEANER (air cleaner)" published on 7/3/2012, which is incorporated herein by reference. According to this publication, air cleaning components such as a fan and a filter are mounted in a housing interior having a substantially rectangular parallelepiped shaped air cleaner main body. The air suction port is formed on a side portion and a lower portion of a main body of the air cleaner, and the air discharge port is formed on an upper portion of the main body thereof.

According to such a configuration, there is a problem that: since the contaminated air is sucked in from a limited direction, that is, from a lateral direction and a downward direction with respect to the air cleaner, a suction capacity is reduced. The corners of the housing, which have a rectangular parallelepiped shape, provide structural resistance that affects the intake of air.

Further, there is also a problem that: since the purified air does not flow to a space far from the air cleaner and the air around the air cleaner is purified, the air cleaning function is limited. That is, the air purified in the air cleaner is discharged only in one direction, i.e., only in an upward direction. There is also a problem that: since only one blowing fan is provided in the main body of the air cleaner, the blowing capacity is limited.

Disclosure of Invention

The present invention aims to solve or partially solve the above-mentioned problems of the prior art.

Embodiments disclosed herein provide an air cleaner including: a cylindrical housing including an inlet through which air is drawn into the cylindrical housing in a radial direction; a filter configured to be detachably disposed in the cylindrical housing and having a cylindrical shape; and a filter frame configured to support the filter, wherein the filter frame includes: a lower frame disposed at a lower portion of the filter; an upper frame disposed at an upper portion of the filter; and a plurality of support frames extending from the lower frame to the upper frame, wherein an inlet portion for sucked air is formed between the plurality of support frames, the inlet portion being configured to receive the filter.

In one embodiment, the plurality of support frames are arranged in a circumferential direction.

In one embodiment, the plurality of support frames comprise: two first frames; and at least one second frame disposed in a space between the two first frames.

In one embodiment, the space includes a front portion and a rear portion, and the entry portion forms the front portion of the space.

In one embodiment, the second frame is disposed in a rear portion of the space.

In one embodiment, the first frame has a length in a circumferential direction greater than a length of the second frame.

In one embodiment, the first frame or the second frame includes an air flow guide that guides air drawn in through the suction inlet to the filter.

In one embodiment, the airflow guide includes a slit.

In one embodiment, the two first frames and the second frame support an outer circumferential surface of the filter.

In one embodiment, the first frame comprises: a flat surface configured to guide installation of the filter; and a curved surface configured to extend in a circular arc shape from a flat surface toward the second frame and support the filter.

In one embodiment, the at least one second frame comprises a plurality of second frames.

In one embodiment, the air cleaner further comprises: a frame cover coupled with an exterior of the plurality of support frames; and a cable space part formed between the plurality of support frames and the frame cover and configured to receive a cable therein.

In one embodiment, the air cleaner further comprises a support member provided in the lower frame to support an underside of the filter, wherein the plurality of support frames are arranged along a circumference of the support member.

In one embodiment, the air cleaner further comprises a handle located at an underside of the support, the handle being configured to be manipulated to move the filter in an upward or downward direction.

In one embodiment, the filter is moved in an upward direction to be mounted in a mounting space within the filter frame when the handle is rotated in a first direction, wherein the filter is moved in a downward direction to be in a position where the filter is detachable from the mounting space when the handle is rotated in a second direction.

The invention has the advantages that the suction capacity is improved, and the structural resistance of the shell is not generated in the air suction process. Also, the suction area of the air can be increased, and the air around the person in the room can be sufficiently sucked regardless of whether the person in the room sits down or stands.

Drawings

The embodiments are described in detail below with reference to the following drawings, wherein like reference numerals represent like elements, and wherein:

fig. 1 is a perspective view illustrating an air cleaner according to an embodiment.

Fig. 2 is a perspective view showing an internal configuration of the air cleaner.

Fig. 3 is a sectional view taken along line III-III' of fig. 2.

Fig. 4 is an exploded perspective view of a first blower device according to an embodiment.

FIG. 5 is an exploded perspective view of components disposed on the underside of a filter according to one embodiment.

Fig. 6 is a bottom perspective view of a support device according to an embodiment.

FIG. 7 is an exploded perspective view of a filter according to an embodiment.

FIG. 8 is a cross-sectional view of a filter according to an embodiment.

Fig. 9 is an enlarged view of a portion "a" of fig. 8.

Fig. 10 is an enlarged view of a portion "B" of fig. 8.

FIG. 11 is a view of a filter frame according to an embodiment.

FIG. 12 is a perspective view of a fan housing according to one embodiment.

FIG. 13 is a schematic view of a filter frame according to an embodiment.

Fig. 14 and 15 are views illustrating a state where a filter is assembled and disassembled in an installation space according to an embodiment.

Fig. 16 to 18 are views showing a state in which air flows into the air cleaner of fig. 1.

FIG. 19 is a view of a filter frame according to another embodiment.

Detailed Description

In the following, embodiments will be described with reference to the schematic drawings. With regard to the reference numerals representing the components in the figures, it should be noted that similar components may be represented by similar reference numerals even though they are shown in different figures, if possible. Also, in the description of the embodiments, when some descriptions of known relevant configurations or functions may cause a vague explanation of the present invention, the descriptions may be omitted.

Also, in the description of the embodiments, terms such as first, second, A, B, (a), (b), or the like may be used herein when describing components. Each of these terms is not intended to define an element, order, or sequence of the corresponding component, but is intended to distinguish the corresponding component from other components. Where any element is described as being "connected" or "coupled" to another element, that element may be directly or indirectly connected or coupled to the other element. It should be understood, however, that another component may be "connected" or "coupled" between the components.

Fig. 1 is a perspective view of an air cleaner according to an embodiment. Referring to fig. 1, the air cleaner 10 according to the embodiment may include: blower devices or

blowers

100 and 200, which generate an air flow; and a flow regulating device or regulator 300 which regulates the discharge direction of the air flow generated in the

air blowing devices

100 and 200. The

air blowing devices

100 and 200 may include a first air blowing device 100 generating a first air flow and a second air blowing device 200 generating a second air flow.

The first and second

air blowing devices

100 and 200 may be vertically disposed. For example, the second air blowing device 200 may be placed on or at the upper side of the first air blowing device 100. In this case, the first air flow is an indoor air flow sucked from a lower side of the air cleaner 10, and the second air flow is an indoor air flow sucked from an upper side of the air cleaner 10.

The air cleaner 10 may include

housings

101 and 201 forming the external appearance thereof. That is, the

housings

101 and 201 may include the first housing 101 forming the external appearance of the first air blowing device 100. The first housing 101 may have a cylindrical shape. The diameter of the upper portion of the first housing 101 may be smaller than that of the lower portion thereof. That is, the first housing 101 may have a truncated cone shape.

The first and second

air blowing devices

100 and 200 may be referred to as "first air cleaning module or first cleaner 100" and "second air cleaning module or second cleaner 200", respectively, wherein the first and second

air blowing devices

100 and 200 perform a function of cleaning air in a space to be cleaned. The first air blowing device 100 may be referred to as a "lower air cleaning module or cleaner" or a "lower module or cleaner" in which the first air blowing device 100 is disposed at a lower portion of the air cleaner 10, and the second air blowing device 200 may be referred to as an "upper air cleaning module or cleaner" or an "upper module or cleaner" in which the second air blowing device 200 is disposed at an upper portion of the air cleaner 10. The flow regulating device 300 may be referred to as a "flow regulating module or flow regulator 300" or a "flow control module or flow controller 300".

The first housing 101 may include a first separated portion 101a that assembles or disassembles two parts constituting the first housing 101. The first housing 101 may be opened if at least one of the two parts is separated. The internal components of the first blower device 100 can be replaced or repaired by opening the first casing 101.

The first housing 101 may include a first suction portion or first inlet 102 through which air is drawn in a radial direction. The first suction part 102 may include one or more through holes formed to penetrate at least a portion of the first housing 101. A plurality of first pumping parts 102 may be provided.

The plurality of first suction portions 102 may be uniformly disposed in the circumferential direction of the outer circumferential surface of the first casing 101, so that air suction may be performed in any direction with respect to the first casing 101. That is, the air may be sucked in a 360-degree direction with respect to a center line extending in a vertical direction and passing through the inner center of the first housing 101.

Therefore, by having the first housing 101 of a cylindrical shape and the plurality of first suction portions 102 formed along the outer circumferential surface of the first housing 101, the suction amount of air can be increased. By avoiding a cuboidal shape with edges or rim portions (as is the case with prior art air cleaners), the flow resistance of the inhaled air can be reduced.

The air sucked through the first suction portion 102 may flow substantially in a radial direction from the outer circumferential surface of the first housing 101. The direction will be defined below. Referring to fig. 1, the vertical direction may represent the axial direction, and the horizontal direction may represent the radial direction. The axial direction may correspond to a central axial direction of the first and

second fans

160 and 260, which will be described below, that is, to a motor axial direction of the fans. Radial may refer to a direction perpendicular to the axial direction. The circumferential direction may mean a direction of an imaginary circle that is generated when rotating around the axial direction and has a radial distance as a radius of rotation.

The first blowing device 100 may include a base 20, the base 20 being disposed at a lower side of the first housing 101 and being seated on the ground. The base 20 may be positioned to be spaced apart from the lower end or the lower end of the first housing 101 in the downward direction. A base suction or base inlet 103 may be formed in the space between the first housing 101 and the base 20.

The air sucked through the base suction part 103 may flow in an upward direction through the suction ports 112 (see fig. 2) of the suction grill 110 provided in or at the upper side of the base 20. In other words, the first blowing device 100 may include a plurality of suction portions 102 and a base suction portion 103. By the plurality of suction parts 102 and the base suction part 103, air in the lower portion of the indoor space can be easily introduced into the first air blowing device 100. Therefore, the amount of air sucked can be increased.

A first discharge portion or first outlet 105 is formed at an upper portion of the first blowing device 100. The first discharge portion 105 may be formed on a first discharge grill 195 of a first discharge guide device or guide 190 (see fig. 8), and the first discharge guide device or guide 190 may be provided in the first air blowing device 100. The first discharge guide 190 may form an appearance of an upper end or an upper end of the first air blowing device 100. The air discharged through the first discharge portion 105 may flow to the upper side in the axial direction.

The second housing 201 may include a second separation portion 201a that assembles or disassembles two parts constituting the second housing 201. The second housing 201 may be opened if at least one of the two parts is separated. The internal components of the second blower device 200 can be replaced or repaired by opening the second casing 201.

The diameter of the lower end of the second housing 201 may be smaller than the diameter of the upper end of the first housing 101. Accordingly, in the general shape of the

housings

101 and 201, the sectional area of the lower portion of the

housings

101 and 102 may be formed larger than the sectional area of the upper portion. Therefore, the air cleaner 10 can be stably supported on the bottom surface.

The second housing 201 may include a second suction portion or second inlet 202 through which air is sucked in a radial direction. The second suction part 202 may include one or more through holes formed to penetrate at least a portion of the second housing 201. A plurality of second pumping parts 202 may be provided.

The plurality of second suction portions 202 are uniformly provided in the circumferential direction of the outer circumferential surface of the second casing 201, so that air suction can be performed in any direction with respect to the second casing 201. In other words, the air may be sucked in a 360 degree direction with respect to a center line extending in a vertical direction and passing through the inner center of the second housing 201.

Therefore, by having the second housing 201 of a cylindrical shape and the plurality of second suction portions 202 formed along the outer circumferential surface of the second housing 201, the suction amount of air can be increased. By avoiding a cuboidal shape with edge portions (as is the case with prior art air cleaners), the flow resistance of the inhaled air can be reduced. The air sucked through the second suction portion 202 may flow substantially in a radial direction from the outer circumferential surface of the second housing 201.

The air cleaner 10 may include a partition 400 provided between the first and second

air blowing devices

100 and 200. The partition device 400 may include a partition plate 430 that partitions or blocks the air flow generated in the first air blowing device 100 and the air flow generated in the second air blowing device 200. The first and second

air blowing devices

100 and 200 may be vertically spaced apart from each other by the partition plate 430.

The flow regulation device 300 may be disposed at an upper side of the second air blowing device 100. The air flow path of the second air blowing device 100 may communicate with the air flow path of the flow regulating device 300. The air passing through the second air blowing device 100 may be discharged to the outside through the second discharge portion or the second outlet 305 via the air flow path of the flow regulating device 300. The second discharge portion 305 may be provided on or at an upper end of the flow adjustment device 300.

The flow conditioning device 300 may be movable. That is, the flow conditioning device 300 may be moved between a lay-down condition (first position) as shown in fig. 1 and an inclined upright condition (second position) as shown in fig. 18. Further, the upper portion of the flow adjustment device 300 is provided with a display device or display 600 that displays operation information of the air cleaner. The display device 600 is movable with the flow adjustment device 300.

Fig. 2 is a perspective view of the air cleaner of fig. 1. Fig. 3 is a sectional view taken along line III-III' of fig. 2. Fig. 4 is an exploded perspective view of a first blower device according to an embodiment.

Referring to fig. 2 and 3, the first air blowing device 100 according to the embodiment may include a base 20 and a suction grill 110, which may be disposed or provided on or at an upper side of the base 20. The base 20 may include a base body 21, the base body 21 having a grill support or grill support 21a that rests on the ground and supports the suction grill 110. The grill support portion 21a may have a generally circular shape, and the lower protrusion or lower projection 116 of the suction grill 110 may be supported inside the grill support portion 21 a. The base body 21 and the suction grill 110 may be spaced apart from each other in a coupled state. Between the base 20 and the suction grill 110, a base suction portion or base outlet 103 may be formed, which may form a suction space of air.

The first blowing device 100 may comprise a lever device or lever 142, which may be arranged on or at the upper side of the suction grille 110 and may be operated by a user. The lever device 142 may rotate in the circumferential direction. A handle 144 (see fig. 5) may be provided on or at the outer circumferential surface of the lever main body 143.

The support means 140 supporting the first filter 120 may be provided on or at an upper side of the lever means 142. The lever device 142 may support a lower surface of the supporting device 140. The support device 140 may be disposed or provided inside the lower frame 131 to support the lower side of the filter 120, and a plurality of first filter supports or filter supports 135 may be arranged in the circumferential direction of the support device 140.

A first filter 120 may be provided on or at an upper side of the support device 140, the first filter 120 filtering foreign substances in the air sucked through the first suction part 102 or the base suction part 103. The first filter 120 may have a cylindrical shape having an open upper portion, and air may be introduced through an outer circumferential surface of the first filter 120. Fine dust and other foreign substances in the air may be filtered during the process of passing through the first filter 120.

Since the first filter 120 has a cylindrical shape, air may be introduced from any direction with respect to the first filter 120. Therefore, the filtering area of the air can be increased.

The first filter 120 may include: filter

bodies

121 and 125 having a cylindrical filtering part whose inside can be vacant; and a filter hole 122 formed to be opened at an upper end portion or an upper end of the

filter bodies

121 and 125. The

filter bodies

121 and 125 may include a first filter part 121 and a second filter part 125 (see fig. 7).

The first filter 120 may further include a filter handle 120a, and the filter handle 120a may be disposed at an upper or lower portion of the

filter bodies

121 and 125. The air may be introduced into the inside of the

filter bodies

121 and 125 through the outer circumferential surfaces of the

filter bodies

121 and 125 and then discharged from the first filter 120 through the filtering holes 122.

The first air blowing device 100 may further include a first filter frame 130 forming an installation space of the first filter 120. That is, the first filter frame 130 may include: a lower frame 131 which may form a lower portion of the first filter frame 130; and an upper frame 132 that may form an upper portion of the first filter frame 130.

The lower frame 131 may have a ring shape to surround the lower portion of the first filter 120. Further, a locking part or locking piece 131b may be formed in the lower frame 131, wherein a locking protrusion (not shown) of the first housing 101 may be coupled to the locking part 131 b. The locking part 131b may be formed at the outside of the first filter supporting part 135.

The upper frame 132 may have a ring shape to surround the upper portion of the first filter 120. The upper frame 132 may be spaced apart from the lower frame 131 in an upward direction.

The annular interior of the upper frame 132 may form a frame opening or frame opening 132 a. The frame opening portion 132a may communicate with the filter holes 122 of the first filter 120. In other words, the frame opening part 132a may form at least a part of a flow path of air passing through the first filter frame 130, and air discharged through the filter holes 122 of the first filter 120 may be introduced into the first fan housing 150 through the frame opening part 132 a. In other words, the first filter 120 may be installed or disposed at the suction side of the first fan 160.

An upper portion of the upper frame 132 may support the first fan housing 150. A first fan introduction part 156 that guides an air flow to the inside of the first fan housing 150 may be formed at a lower portion of the first fan housing 150. A fan introduction portion 156a communicating with the frame opening portion 132a may be formed in the first fan introduction portion 156.

In other words, the first fan housing 150 may be coupled to the upper side of the upper frame 132, and the fan introduction portion 156a and the frame opening portion 132a may be vertically aligned. According to this structure, air passing through the frame opening portion 132a can be introduced into the inside of the first fan case 150 through the fan introduction portion 156a, and air can be prevented from leaking to the outside of the first fan case 150. In addition, when the first filter 120 is separated by the grill provided in the first fan introduction part 156, it is also possible to prevent, for example, a user's finger from being put into the inside of the first fan housing 150.

The first filter frame 130 may include a first filter support 135 extending from the lower frame 131 toward the upper frame 132 in an upward direction. The lower frame 131 and the upper frame 132 may be spaced apart from each other by the first filter support 135. A plurality of first filter supporting parts 135 may be provided. A plurality of first filter supports 135 may be connected to the lower frame 131 and the upper frame 132 in a circumferential arrangement. The installation space 130a (see fig. 11) of the first filter 120 may be defined by a lower frame 131 and an upper frame 132 and a plurality of first filter supporting parts 135.

The frame cover 136 may be coupled to the outside of the first filter support 135. The frame cover 136 may reinforce the supporting force of the first filter supporting part 135. Further, a cable space portion (wire space) or a cable space, in which a cable can be positioned, may be formed between the first filter support 135 and the frame cover 136. The cable may include, for example, wires connecting the

fan motors

165, 265, and 335, the Printed Circuit Board (PCB) device 500, the display device, or the display 600.

The sensor device or sensor 137 may be mounted or disposed in or on the first filter frame 130. The sensor device 137 may include a dust sensor 137a that detects the amount of dust in the air and a gas sensor 137b that detects the amount of gas in the air, which is a gas to be removed such as toxic gas, harmful gas, etc. that needs to be purified. Further, the sensor device 137 may further include a sensor cover 137c covering the dust sensor 137a and the gas sensor 137 b.

The dust sensor 137a and the gas sensor 137b may be supported by the upper frame 132 of the first filter frame 130. A sensor mounting portion 138, to which the sensor device 137 is mounted or provided, may be provided in the upper frame 132. The sensor mounting portion 138 may protrude from an outer circumferential surface of the upper frame 132.

The first air blowing device 100 may further include an ionizer for removing or eliminating odor particles from the air. The ionizer may be coupled to the first fan housing 150 and may be capable of acting on air flowing in the interior of the first fan housing 150.

The induction device 137 and the ionizer 158 may also be installed or disposed in the second air blowing device 200 described below. For example, the induction device 137 and the ionizer 158 may be installed or disposed in one of the first air blowing device 100 or the second air blowing device 200.

The first fan 160 may be placed at an upper side of the first fan introduction part 156 and may be received in the case space part 150a of the first fan case 150. For example, the first fan 160 may include a centrifugal fan that introduces air in an axial direction and discharges the air to an upper side in a radial direction.

The first fan 160 may include: a hub 161; a rotating shaft 165a of the first fan motor 165 (which may be a centrifugal fan motor) may be coupled thereto; a cover 162 that may be arranged or disposed in a spaced apart condition from the hub 161; and a plurality of fan blades 163, which may be disposed or disposed between the hub 161 and the shroud 162. The first fan motor 165 may be coupled to an upper side of the first fan 160.

The first air blowing device 100 may further include a first air guiding device or first air guide 170 which guides the flow of air passing through the first fan 160 by being coupled to an upper side of the first fan 160. The first air guide 170 may include an outer wall 171 having a cylindrical shape and an inner wall 172 positioned on or at an interior of the outer wall 171 and having a cylindrical shape. The outer wall 171 may be arranged or disposed to surround the inner wall 172. The first air flow path 172a through which the air flows may include an inner circumferential surface of the outer wall 171 and an outer circumferential surface of the inner wall 172.

The first air guide 170 may include a guide rib 175 disposed or provided on or in the first air flow path 172 a. The guide ribs 175 may extend from the outer circumferential surface of the inner wall 172 to the inner circumferential surface of the outer wall 171. The plurality of guide ribs 175 may be arranged or disposed to be spaced apart from each other. The plurality of guide ribs 175 may guide the introduced air to the first air flow path 172a of the first air guide 170 in an upward direction via the first fan 160.

The guide ribs 175 may be obliquely extended from lower portions of the outer wall 171 and the inner wall 172 in an upper direction. For example, the guide rib 175 may be rounded (rounded), thereby guiding the air so that the air may flow obliquely in an upward direction.

The first air guide 170 may further include a motor accommodating part 173, and the motor accommodating part 173 extends from the inner wall 172 to a lower side, thus accommodating the first fan motor 165. The motor accommodating part 173 may have a bowl shape whose diameter is gradually reduced in a downward direction. The shape of the motor receptacle 173 may correspond to the shape of the hub 161. The motor receptacle 173 may be inserted into the hub 161.

The first fan motor 165 may be supported to an upper side of the motor accommodating part 173. The rotation shaft 165a of the first fan motor 165 may extend in a downward direction from the first fan motor 165, and be coupled to the shaft coupling portion 161a of the hub 161 through a lower surface portion of the motor receiving portion 173.

Further, the motor coupling portion 166 may be disposed on or at an upper side of the first fan motor 165. The motor coupling 166 may guide the first fan motor 165 to be fixed to the air guide 170.

The first air blowing device 100 according to the embodiment may further include a second air guide device or a second air guide 180, which may be coupled to an upper side of the first air guide 170 and guide the air passing through the first air guide 170 to the discharge guide 190. The second air guide 180 may include a first guide wall 181 having a substantially cylindrical shape, and a second guide wall 182 having a substantially cylindrical shape, which may be positioned inside the first guide wall 181. The first guide wall 181 may be arranged or disposed to surround the second guide wall 182. The PCB apparatus 500 may control the operation of the air cleaner 10 and may be installed inside the cylindrical second guide wall 182.

The second blowing device may include a second filter member or second filter 220, a second filter frame 230, a second fan housing 250, a second fan 260, and a second fan motor 265. These components may be the same as or similar to the first filter 120, the first filter frame 130, the first fan housing 150, the first fan 160, and the first fan motor 165 of the first air blowing device 100, and thus, duplicated contents are omitted.

Further, the second air blowing device 200 may further include a lever supporting device or support 560 supporting the second filter 220 of the second air blowing device 200. The supporting means 140 and the lever means 142, which may be provided in the first blowing device 100, may be provided on or at an upper side of the lever supporting means 560. The description about the supporting device 140 and the lever device 142 may be the same as the description applied to the second air blowing device 200.

The second air blowing device 200 may further include: a third air guide device or a third air guide 270 may be coupled to an upper side of the second fan 260 to guide the airflow passing through the second fan 260. The third air guide 270 may be the same as or similar to the first air guide 170, and thus, the repeated inside is omitted.

The second air blowing device 200 may include: a second discharge guide means or a second discharge guide 280, which may be disposed or provided on or at an upper side of the third air guide 270 and guides the air flow passing through the third air guide 270. The airflow control device 300 is movably disposed on or at an upper side of the second discharge guide 280. The airflow control device 300 may include a third fan 330. The third fan 330 may guide the air passing through the third air guide 270 to be discharged to the outside of the air cleaner 10. The third fan motor 335 may be coupled to the third fan 330.

The third fan 330 may include an axial flow fan. That is, the third fan 330 may be operated to enable air introduced in an axial direction through the third air guide 270 to be discharged in the axial direction. The air passing through the third fan 330 may be discharged to the outside through the second discharge part 305 located on or at the upper side of the third fan 330.

In the air cleaner 10, the amount of discharged blast air may be improved, and since the second discharge portion 305 and the first discharge portion 105 of the first air blowing device 100 may be provided, air may be discharged in a plurality of directions.

The display device 600 that can display the operation information of the air cleaner 10 may be provided on or at the upper surface of the air cleaner 10.

The first fan motor 165 and the second fan motor 265 may be sequentially arranged or disposed with respect to the longitudinal direction of the air cleaner 10. Further, the second fan motor 265 and the third fan motor 335 may be sequentially arranged or disposed with respect to the longitudinal direction of the air cleaner 10. In other words, the first fan 160, the second fan 260, and the third fan 330 may be arranged or disposed on the same axis.

The airflow control device 300 may further include: a rotation guide means or a rotation guide, guides the rotation of the airflow control device 300 in the lateral direction and guides the rotation of the airflow control device 300 in the vertical direction. Rotation in the lateral direction is referred to as "first direction rotation", and rotation in the vertical direction is referred to as "second direction rotation".

The rotation guide may include: a first guide mechanism or a first guide member that guides the first-direction rotation of the airflow control device 300; and a second guide mechanism that guides the second-direction rotation of the airflow control device 300. The first guide may include: a first gear motor 363 generating a driving force; and a first gear 360 rotatably coupled to the first gear motor 363. For example, the first gear motor 363 may include a stepping motor whose rotation angle can be easily controlled.

The second guide may include: a rotary guide member or rotary guide 370 (see fig. 18) that guides the second direction rotation of the airflow control device 300. The rotary guide 370 may include a rack 374.

The second guide mechanism may include: a second gear motor 367 generating a driving force; and a second gear 365 that may be coupled to a second geared motor 367. For example, the second gear motor 367 may include a stepping motor. If the second gear motor 367 is driven, the rotation guide 370 may be vertically rotated by the association of the second gear 365 with the second gear frame 374. Accordingly, the airflow control device 300 may perform the second direction rotation according to the movement of the rotation guide 370.

If the air flow control means 300 performs the second direction rotation, the air flow control means 300 may be in the "second position" protruding from the upper surface of the air cleaner 10 (see fig. 18). In contrast, as shown in fig. 1 and 17, the position where the airflow control device 300 is located may be referred to as a "first position".

FIG. 5 is an exploded perspective view of components disposed on an underside of a filter according to an embodiment. Fig. 6 is a bottom perspective view of a support device according to an embodiment.

Referring to fig. 5, the first air blowing device 100 according to the embodiment may include a base 20, a suction grill 110, a lever device 142, and a support device 140. The base 20 may include a base body 21 having a generally disc-like shape. The base body 21 may include: the grill support portion 21a supports the lower protrusion 116 of the suction grill 110. The lower protrusion 116 may protrude from the ground in a downward direction to be supported by the inside of the grill support part 21 a.

The base 20 may include: a grill fastening portion 23, which may be fastened to the suction grill 110. The grill fastening portion 23 may be coupled to the base fastening portion 111b of the suction grill 110 by a predetermined fastening member. A plurality of grill fastening portions 23 may be provided. For example, as shown in fig. 5, four grill fastening portions 23 may be provided at an edge portion or an edge of the base main body 21.

The base 20 may further include: a support coupling 22, which may be coupled to the support device 140. The support coupling portion 22 may be configured to protrude at a substantially central portion of the base main body 21, and the fastening member 25 may be coupled to the support coupling portion 22. The support coupling portion 22 and the fastening member 25 may support the member insertion portion 141a of the support device 140 and may guide the movement of the support device 140.

The support device 140 may be moved in an upward or downward direction. The fastening member 25 may serve as a stopper that restricts the supporting device 140 so that the supporting device 140 is not moved in the upward direction any more in a state where it is moved in the upward direction by a set or predetermined distance. In the case where the supporting device 140 is moved in the upward direction, the first filter 120 may be in a state of being coupled to the installation space 130a (first filtering position). On the other hand, in a state where the supporting device 140 is moved in the downward direction, the first filter 120 is in a released state (second filtering position) detachable from the installation space 130 a.

The suction grill 110 may be fixed to the upper side of the base 20. That is, the suction grill 110 may include: the grill main body 111 may have a generally annular shape and an edge portion or edge 111a that may be disposed outside the grill main body 111. A grill suction portion 112 through which air sucked through the base suction portion 103 may pass may be provided in the edge portion 111 a. The grill suction portion 112 may be formed along the circumference of the edge portion 111 a.

The air sucked through the grill suction part 112 may move in an upward direction and pass through the first filter 120. The first filter 120 may be provided in a cylindrical shape and may have a filtering surface to filter air. The air passing through the grill suction part 112 may be introduced into the inside of the first filter 120 by passing through the outer circumferential surface of the cylindrical first filter 120.

The first housing 101 may be supported on or at an upper side of the grill suction part 112. Thus, the air sucked through the suction grill suction part 112 may be added to the air sucked through the first suction part 102, thereby passing through the first filter 120.

The suction grill 110 may further include: the guide protrusion 113a guides the rotation of the lever device 142. The guide protrusion 113a may protrude from the upper surface of the grill body 111 in an upward direction, and may be inserted into a protrusion penetrating portion (protrusion penetrating portion)145 of the lever device 142. During the rotation of the lever device 142, the guide protrusion 113a may move inside the protrusion penetration portion 145. The plurality of protruding penetration portions 145 may be disposed to be spaced apart from each other in a circumferential direction.

A groove portion or groove 115 may be formed in the suction grill 110, which is recessed in a downward direction from the grill main body 111 to guide a mounting position of the lever device 142. When the lever device 142 is installed on or at the upper side of the suction grill 110, the handle 144 of the lever device 142 may be positioned on or at the upper side of the groove portion 115. Meanwhile, the lever device 142 may be positioned at the "installation reference position".

The lever device 142 may include: the lever body 143 may have a substantially annular shape and may rotate. The lever device 142 may further include: a movement guide or movement guide 143a protruding in an upward direction from an upper surface of the lever body 143 to guide the movement of the first filter 120 in an upward or downward direction. The moving guide 143a may have a shape gradually protruding from the upper surface of the lever main body 143 in a circumferential direction. In other words, the moving guide 143a may include an inclined surface 146 gradually protruding in the circumferential direction.

The plurality of moving guides 143a may be disposed to be spaced apart from each other in a circumferential direction. For example, four moving guides 113 may be provided as shown in fig. 5. However, the number of the movement guides 113 is not limited thereto.

A projection penetration or protrusion 145 may be formed in the lever device 142, and the guide protrusion 113a of the suction grill 110 may be inserted into the projection penetration 145. The protrusion penetration portion 145 may penetrate at least a portion of the lever main body 143. In addition, the protrusion penetration portion 145 may be formed in a circular arc shape having a predetermined curvature in the circumferential direction corresponding to the curvature of the outer or inner circumferential surface of the lever main body 143.

In addition, a plurality of the protruding penetration portions 145 may be disposed to be spaced apart from each other. The plurality of protrusion penetration portions 145 may be arranged in a circumferential direction of the lever main body 143. The number of the protrusion penetration portions 145 may be set to correspond to the number of the guide protrusions 113 a. For example, as shown in fig. 5, four protrusion penetration portions 145 may be provided in the circumferential direction.

The guide protrusion 113a may extend to an upper side of the lever main body 143 by passing through the protrusion penetration portion from a lower side of the lever main body 143. The guide protrusion 113a may move inside the protrusion penetration portion 145 during the rotation of the lever device 142.

The male penetration 145 may include a first end or first end 147a and a second end or second end 147 b. The protruding penetration portion 145 may be a through-hole extending from the first end 147a to the second end 147 b.

When the lever device 142 is positioned at the "filter release position", the guide protrusion 113a may be positioned at a position where it is locked to the first end 147a of the boss penetration part 145. The "filter release position" may be a position for guiding the supporting device 140 to move in a downward direction. The "filter release position" may be a position where the first filter 120 can be separated from the installation space 130 a.

In contrast, when the lever device 142 is positioned at the "filter mounting position", the guide protrusion 113a may be positioned at a position where it is locked to the second end 147b of the projection penetration part 145. The "filter mounting position" may be a position for guiding the support means 400 to move in the upward direction. The "filter installation position" may be a position where the first filter 120 is coupled to the installation space 130 a.

During rotation of the lever device 142, the guide protrusion 113a may move from the first end 147a to the second end 147 b. In other words, the guide protrusion 113a may be fixed to the suction grill 110, but when the lever device 142 is rotated, the members may be relatively moved inside the protrusion penetration portion 145.

The lever device 142 may further include: and a support plate 143b radially extending from an inner circumferential surface of the lever body 143 to the inside. The support plate 143b may support the lower surface of the support device 140. A plurality of support plates 143b may be disposed at both sides of the lever main body 143.

A handle 144 may be formed on an outer circumferential surface of the lever device 142, the handle 144 being operable by a user to rotate the lever device 142. The user may rotate the lever device 142 in a clockwise or counterclockwise direction by manipulating the knob 144.

The supporting means 140 may be movably supported at an upper side of the lever means 142. That is, when the lever device 142 rotates, the supporting device 140 may interfere with the lever device 142 to perform a movement in an upward or downward direction.

When the supporting device 140 moves in the upward direction, the supporting device 140 may push the first filter 120 in the upward direction, so that the first filter 120 may be supported by the first filter frame 130. Conversely, when the supporting device 140 moves in the downward direction, the supporting device 140 may pull the first filter 120 in the downward direction, thereby positioning the first filter 120 in a position detachable from the first filter frame 130.

The support device 140 may include a support body 140a having a generally disc shape. The support body 140 may have a filter support surface that supports the first filter 120. The supporting device 140 may include a member insertion portion 141a, which may be disposed at a substantially central portion of the supporting body 140a, and the fastening member 25 may be inserted into the member insertion portion 141 a. The member insertion part 141a may be a through hole penetrating in a vertical direction.

The fastening member 25 may extend in a downward direction by inserting the member insertion portion 141a at an upper side of the supporting device 140, and may be coupled to the support coupling portion 22 of the base 20. By means of the fastening member 25, the support device 140 can be moved in an upward or downward direction in a state in which its center is fitted with respect to the base 20, the suction grill 110 and the lever device 142 without shaking in a lateral direction. For example, the fastening member 25 may include a screw.

The supporting device 140 may include: a support protrusion or support projection 141b, which may be in contact with the moving guide 143 a. A support protrusion 141b having an inclined surface that gradually protrudes more downward in a circumferential direction of the supporting device 140 may protrude in a downward direction from a lower surface of the supporting body 140a, and a plurality of support protrusions 141b may be provided at positions corresponding to the plurality of moving guides 143 a. Further, the shape of the support protrusion 141b may correspond to the shape of the moving guide 143a, and include an inclined surface that may be gradually convex in the circumferential direction.

The circumferential direction in which the moving guide 143a gradually protrudes and the circumferential direction in which the support protrusion 141b gradually protrudes may be opposite directions to each other. For example, if the circumferential direction in which the moving guide 143a gradually protrudes is a counterclockwise direction, the circumferential direction in which the support protrusion 141b gradually protrudes may be a clockwise direction. In contrast, if the circumferential direction in which the moving guide 143a gradually protrudes is a clockwise direction, the circumferential direction in which the support protrusion 141b gradually protrudes may be a counterclockwise direction.

The moving guide 143a and the support protrusion 141b may interfere with each other during the rotation of the lever device 142, and the support device 140 may perform a movement in an upward or downward direction during the process. That is, if the upper portion of the supporting projection 141b and the upper portion of the moving guide 143a contact each other (the inclined surface of the supporting projection and the inclined surface of the moving guide make surface contact) when the lever device 142 is positioned at a certain position, the supporting device 140 may move in the upward direction. Further, the first filter 120 supported by the support device 140 is in a state of being coupled to the first blowing device to be moved in an upward direction.

On the other hand, if the upper portion of the support protrusion 141b and the lower portion of the moving guide 143a contact each other (the surface contact of the inclined surface of the support protrusion and the inclined surface of the moving guide is released), or if the interference between the support protrusion 141b and the moving guide 143a is released when the lever device 142 is rotatably positioned at another position, the supporting device 140 may move in the downward direction. Further, the first filter 120 supported by the support device 140 may be in a detachable state (released state) from the first air blowing device 100.

FIG. 7 is an exploded perspective view of a filter member according to an embodiment. FIG. 8 is a cross-sectional view of a filter member according to an embodiment. Fig. 9 is an enlarged view of a portion "a" of fig. 8. Fig. 10 is an enlarged view of a portion "B" of fig. 8.

Referring to fig. 7 to 10, the first filter 120 according to this embodiment may include a first filter part 121 and a second filter part 125. The second filter part may be inserted into the inside of the first filter part 121.

The first filter part 121 may be a "foreign material removing filter" that filters microorganisms such as fine dust or viruses in the air. For example, the first filtering part 121 may include a HEPA filter. That is, the first filter part 121 may include: a first filter body 121a which may have a hollow cylindrical shape; and fixing

frames

122a and 122b supporting the first filter body 121 a. The first filter body 121a may provide a filtering surface to filter foreign substances.

The fixing frames 122a and 122b may include: a first fixing frame 122a supporting an upper portion of the first filter body 121 a; and a second fixing frame 122b supporting a lower portion of the first filter body 121 a. The first fixing frame 122a may include: a first outer surface supporting part or first outer surface supporter 122c supporting an upper outer circumferential surface of the first filter body 121 a; and a first inner surface supporting part or first inner surface supporter 122d supporting an upper inner circumferential surface of the first filter body 121 a. In other words, the first fixing frame 122a may be coupled to the upper surface, the lower outer circumferential surface, and the lower inner circumferential surface of the first filter body 121a by the first outer surface supporting part 122c and the first inner surface supporting part 122 d.

The second fixing frame 122b may include: a first outer surface supporting part or first outer surface supporter 122c supporting a lower outer circumferential surface of the first filter body 121 a; and a first inner surface supporting part or first inner surface supporter 122d supporting a lower inner circumferential surface of the first filter body 121 a. In other words, the second fixing frame 122b may be coupled to the lower surface, the lower outer circumferential surface, and the lower inner circumferential surface of the first filter body 121a by the first outer surface supporting part 122c and the first inner surface supporting part 122 d. According to the structures of the first and second fixing frames 122a and 122b, the first filter part 121 may stably maintain its cylindrical shape.

The first filter part 121 may further include: the filter handle 120a can be grasped by a user. The filter handle 120a may be provided to at least one of the first and second fixing frames 122a and 122 b. The filter handle 120a may protrude in a radial direction from an outer circumferential surface of the first fixing frame 122a or the second fixing frame 122 b.

The second filter part 125 may be a "deodorizing filter" that filters odor particles in the air. That is, the second filter part 125 may include: a second filter body 125a having a hollow cylindrical shape; and fixing

frames

126a and 126b supporting the second filter body 125 a. The second filter body 125a may provide a filtering surface to filter foreign substances.

The fixing frames 126a and 126b may include: a third fixing frame 126a supporting an upper portion of the second filter body 125 a; and a fourth fixing frame 126b supporting a lower portion of the second filter body 125 a. The third fixing frame 126a may include: a second outer surface supporting part or second outer surface supporting part 126c supporting an upper outer circumferential surface of the second filter body 125 a; and a second inner surface support portion 126d supporting an upper inner circumferential surface of the second filter main body 125 a. In other words, the third fixing frame 126a may be coupled to the upper surface, the upper outer circumferential surface, and the upper inner circumferential surface of the second filter body 125a through the second outer surface supporting part 126c and the second inner surface supporting part 126 d.

The third fixing frame 126a may further include: and a locking protrusion 126e lockable to an upper side of the first fixing frame 122 a. If the second filter part 125 is inserted into the inside of the first filter part 121, the locking protrusion 126e may be supported on the upper surface of the first fixing frame 122 a. Therefore, the second filter part 125 may be stably supported by the first filter part 121.

The fourth fixing frame 126b may include: a second outer surface supporting part or second outer surface supporting part 126c supporting a lower outer circumferential surface of the second filter body 125 a; and a second inner surface support portion 126d supporting a lower inner circumferential surface of the second filter body 125 a. In other words, the fourth fixing frame 126b may be coupled to the lower surface, the lower outer circumferential surface, and the lower inner circumferential surface of the second filter body 125a through the second outer surface supporting part 126c and the second inner surface supporting part 126 d. According to the structures of the third and fourth fixing frames 126a and 126b, the second filter part 125 may stably maintain its cylindrical shape.

The second fixing frame 122b may further include: a frame support portion or frame support 126e supporting the lower side of the fourth fixing frame 126 b. In other words, the second fixing frame 122b may radially extend to the inside, from the lower side of the first filter part 121 to the lower side of the second filter part 125, and a portion positioned on or at the lower side of the second filter part 125 may form the frame support part 126 e. Accordingly, the second filter part 125 may be stably supported by the first filter part 121.

The air flowing toward the outer circumferential surface of the first filter 120 through the first suction part 102 or the base suction part 103 may be purified while sequentially passing through the first filter part 121 and the second filter part 125. The filtering holes 122 may be formed at an upper portion of the second filtering portion 125. The air passing through the first filter 120 may be introduced to the first fan 160 while flowing through the filter holes 122 in an upward direction.

FIG. 11 is a view of a filter frame according to an embodiment. FIG. 12 is a perspective view of a fan housing according to one embodiment. FIG. 13 is a schematic view of a filter frame according to an embodiment.

Referring to fig. 11 to 13, the first filter frame 130 according to this embodiment may include: a lower frame 131 which may form a lower portion of the first filter frame 130; an upper frame 132 that may form an upper portion of the first filter frame 130; and a first filter support part or first filter supporter 135 extending from the lower frame 131 toward the upper frame 132 in an upward direction. A plurality of first filter supporting parts 135 may be provided. The first filter support part 135 may be referred to as a "support frame" in which the first filter support part 135 may support an outer surface of the first filter 120. The installation space 130a in which the first filter 120 may be positioned may be composed of a lower frame 131 and an upper frame 132 and a plurality of first filter supporting parts 135.

That is, the lower frame 131 may have a ring shape to surround the lower portion of the first filter 120. The lower frame 131 may include: the frame cut-out portion (frame cut-out) or the frame cut 131a may have a shape formed by cutting at least a portion of the lower frame 131. The frame cut-off portion 131a may form a space in which the handle 144 of the lever device 142 is positioned or disposed, and may be formed to have a size corresponding to a rotation path of the handle 144. In other words, the frame cut-off portion 131a may provide a space portion or space in which the handle 144 moves.

The frame fastening part 131c may be formed at the lower frame 131. The frame fastening portion 131c may be coupled to the grill fastening portion 23 of the base 20 and the base fastening portion 111b of the suction grill 110 by a predetermined fastening member.

The upper frame 132 may have a ring shape to surround the upper portion of the first filter 120, and may be spaced apart from the lower frame 131 in an upward direction. Further, the annular inner space of the upper frame 132 may form a frame opening portion 132 a. The frame opening portion 132a may communicate with the filter holes 122 of the first filter 120.

The upper frame 132 may include a frame inner wall 133 and a frame outer wall 134 surrounding the frame inner wall 133. Each of the frame inner wall 133 and the frame outer wall 134 may have an annular shape. Further, the frame opening portion 132a may be understood as an inner space of the frame inner wall 133.

The inner circumferential surface of the frame outer wall 134 may be spaced apart from the outer circumferential surface of the frame inner wall 133. The upper frame 132 may further include: and a wall connection part 134a extending from a lower portion of the frame outer wall 134 to a lower portion of the frame inner wall 133.

A case insertion portion 134b, in which at least a portion of the first fan case 150 may be positioned, may be formed in a space defined by the inner circumferential surface of the frame outer wall 134, the outer circumferential surface of the frame inner wall 133, and the wall connection portion 134 a. Further, a case coupling portion 134c, which may be coupled to the first fan case 150, may be provided to the wall connection portion 134 a. A plurality of housing coupling parts 134c may be provided at both sides of the wall connection part 134 a. The predetermined fastening member may be coupled to the housing coupling portion 134c and the frame coupling portion 151a of the first fan housing 150.

The upper frame 132 may further include: a case mounting part or case mounting part 133a protruding from an inner circumferential surface of the frame inner wall 133 to support the first fan case 150. The inner space of the case mounting part 133a may form a frame opening part 132 a.

An upper portion of the upper frame 132 may support the first fan housing 150. The first fan housing 150 may be installed or disposed at an outlet side of the first filter 120. That is, the first fan housing 150 may include: and case

main bodies

151, 152 and 153 forming a case space part 150a in which the first fan 160 is received. The

housing bodies

151, 152, and 153 may be supported by the first filter frame 130.

The

housing bodies

151, 152, and 153 may have a stepped shape such that the diameters thereof are varied. That is, the

case bodies

151, 152, and 153 may include: the first body 151 may have a set or predetermined first diameter (hereinafter, referred to as a "first set diameter") and have a generally cylindrical shape. The first body 151 may form an upper portion of the

case bodies

151, 152, and 153.

The case

main bodies

151, 152, and 153 may include case cut-off

portions

154a and 154 b. The

case cutting parts

154a and 154b may be formed by cutting at least a portion of the third body 153. For example, the

case cutting parts

154a and 154b may be cut by a predetermined height in an upward direction from a lower end or a lower end of the third body 153.

The

case cutting parts

154a and 154b may include: a first cut part or a first slit 154a is formed at a position corresponding to the first filter supporting part 135 to support the first filter supporting part 135. The first filter support 135 or the frame cover 136 may be positioned in the first cut-off portion 154 a.

The

case cutting parts

154a and 154b may include: a second cut-off portion or second cutout 154b is formed at a position corresponding to the sensor mounting portion 138 to support the sensor mounting portion 138. The sensor mounting portion 138 may be positioned in the second cut-off portion 154 b. Further, a sensor supporting part or sensor support 155 supported by the sensor mounting part 138 may be arranged or provided on or at an upper side of the second cut-off part 154 b. A mounting space portion or mounting space in which the sensor device 137 can be mounted or disposed may be defined by the sensor mounting portion 138 and the sensor supporting portion 155.

The third body 153 may be inserted into the housing insertion part 134b, and the housing insertion part 134b may be formed in the upper frame 132. In summary, the third body 153 may be inserted into the case insertion portion 134b, and the

case cutoff portions

154a and 154b support the upper portions of the first filter frame 130 and the sensor mounting portion 138, so that the filter frame 130 and the first fan case 150 may be stably coupled to each other.

A plurality of first filter support parts 135 may be arranged along the edge portions of the lower and

upper frames

131 and 132 in the circumferential direction to support the outer circumferential surface of the first filter 120. For example, a plurality of first filter supports 135 may be disposed or provided at the rear of the first filter frame 130. In addition, an insertion part 130b may be formed at the front of the first filter frame 130, the insertion part 130b providing a space into or from which the first filter 120 is inserted or removed.

The directions are defined below. The direction in which the first filter 120 is removed may be defined as the "front" side of the first filter frame 130, and the direction in which the first filter 120 is inserted may be defined as the "rear" side of the first filter frame 130. The frame cut part 131a may be formed at a front portion of the lower frame 131 with respect to the shape of the lower frame 131.

In other words, the insertion portion 130b may be formed in a space formed in front of the first filter frame 130 in a space between two first filter supports 135 of the plurality of first filter supports 135. The two first filter supports 135 may include

first frames

135a and 135 b. The

first frames

135a and 135b may be arranged or disposed opposite to each other.

The

second frames

135c and 135d may be arranged or disposed in a space formed in a space between the

first frames

135a and 135b behind the first filter frame 130 in the circumferential direction. A plurality of

second frames

135c and 135d may be provided.

FIG. 13 is a schematic view of a filter frame according to an embodiment. That is, fig. 13 shows the lower frame 131 and the plurality of first filter supporting parts 135 in the first filter frame 130.

The two

first frames

135a and 135b may be arranged or disposed opposite to each other with respect to the center C of the lower frame 131. In other words, the center line l1 passing through the center C may pass through the two

first frames

135a and 135 b. The insertion portion 130b may be formed in a front space between the two

first frames

135a and 135b, the first filter 120 may be taken out of the insertion portion 130b or inserted into the insertion portion 130b, and the

second frames

135c and 135d may be disposed or provided in a rear space.

When considering the supporting force of the first filter frame 130, the supporting force of the front portion (where the insertion portion 130b is formed or disposed) of the first filter frame 130 may be less than that of the rear portion (where the

second frames

135c and 135d are disposed or disposed). In this embodiment, the

first frames

135a and 135b may be larger than the

second frames

135c and 135d in order to reinforce a relatively small front supporting force.

That is, the length L1 of the circumferential

first frames

135a and 135b may be greater than the length L2 of the circumferential

second frames

135c and 135 d. According to this structure, the supporting force of the

first frames

135a and 135b may be greater than that of the

second frames

135c and 135 d. Thus, since any separate frame is not provided at the front of the first filter frame 130, a supporting force, which may be insufficient, may be reinforced.

Further, the angle θ may be equal to or greater than 180 degrees, and among two angles formed by two extension lines l2 and l3, the angle θ is formed by a rear portion of the center C, and the extension lines l2 and l3 extend from the center C to front portions of the two

first frames

135a and 135b, respectively. In other words, the front portions of the

first frames

135a and 135b may extend forward with respect to the center C of the lower frame 131, so that the supporting force of the front portion of the first filter frame 130 may be reinforced.

Each of the

first filter frames

135a and 135b may include a flat surface or flat surface portion 135e and a curved surface or curved surface 135 f. The flat surface portion 135e may extend rearward from the front end portions of the

first frames

135a and 135b to guide the insertion of the first filter 120. Further, the curved surface portion 135f may support the first filter 100 by extending rearward in a circular arc shape from the flat surface portion 135 e. The circular arc curvature of the curved surface portion 135f may correspond to the curvature of the lower frame 131. In other words, since the flat surface portion 135e and the curved surface portion 135f are provided, the first filter 120 may not interfere with the

first frames

135a and 135b when the first filter 120 is inserted into the installation space 130a, and the

first frames

135a and 135b may easily support the outer circumferential surface of the first filter 120 when the installation of the first filter 120 in the installation space 130a is completed.

The first casing 101 may be disposed outside the lower frame 131. In other words, the first casing 101 may surround the lower frame 131. If the first fan 160 is driven, air may be drawn in a radial direction through the first suction part 102 of the first case 101 and then flow into the first filter 120 supported by the first filter frame 130. According to this structure, air can be sucked in the circumferential direction of the air cleaner 10, i.e., in the 360-degree direction, so that the suction capacity of the air cleaner can be increased.

Fig. 14 and 15 are views illustrating a state where a filter is assembled and disassembled in an installation space according to an embodiment. Referring to fig. 14 and 15, the first filter 120 is detachably installed in an installation space 130a formed in the first filter frame 130 according to an embodiment.

The installation space 130a may be provided in a cylindrical shape corresponding to the shape of the first filter 120. During the installation of the first filter 120, the filter 120 may be slidably inserted toward the installation space 130a in a radial direction. In contrast, during the separation of the first filter 120, the first filter 120 may be slidably removed from the installation space 130a in a radial direction.

Fig. 14 shows a state where the first filter 120 is separated. In this state, the handle 144 of the lever device 142 may be positioned at a release position of the first filter 120, for example, an end of the frame cut-off portion 131 a. Meanwhile, the position of the handle 144 may be referred to as a "first position" or a "release position".

When the handle 144 is positioned at the first position, the support device is in a state of moving in a downward direction. Thus, the installation space 130a forms a space enough for the first filter 120 to be inserted.

In the state of fig. 14, the first filter 120 may be installed in the installation space 130a by moving backward through the insertion part 130 b. In addition, the supporting device 140 may be moved in an upward direction by rotating the handle 144 in a certain direction. For example, referring to fig. 14 and 15, the handle 144 may be rotated in a clockwise direction.

If the supporting device 140 is moved in the upward direction, the first filter 120 may be closely attached to the upper portion of the first filter frame 130, i.e., the upper frame 132, by being moved in the upward direction. Thus, the first filter 120 may be positioned at the coupled position.

In a state where the first filter 120 is installed in the installation space 130a, the supporting device 140 may be moved in a downward direction by rotating the handle 144 in an opposite direction. For example, the handle 144 may be rotated in a counterclockwise direction, with reference to fig. 14 and 15. If the supporting device 140 is moved in the downward direction, the first filter 120 may be positioned at a position where it is separated from the installation space 130 a.

Fig. 16 to 18 are views showing a state where air flows into the air cleaner of fig. 1.

First, the air flow according to the driving of the first air blowing device 100 will be described. If the first fan 160 is driven, indoor air may be drawn into the inside of the first casing 101 through the first suction part 102 and the base suction part 103. The sucked air may pass through the first filter 120, and foreign materials in the air may be filtered in this process. During the air passes through the first filter 120, the air may be sucked in a radial direction of the first filter 120, filtered, and then flow in an upward direction.

That is, the air sucked through the lower suction portion 102a of the first suction portion 102 may pass through the first filter 120 while flowing radially inward. Further, the air sucked through the upper suction part 102b may flow in a downward direction along the housing suction flow path 159, and may pass through the first filter 120 by flowing to the outer circumferential surface of the first filter 120. The air sucked through the base suction part 103 may pass through the first filter 120 by flowing to the outer circumferential surface of the first filter 120. In the process that the air sucked through the first suction part 102 and the base suction part 103 passes through the first filter 120, the air may be sucked in a radial direction of the first filter 120, filtered, and then flow in an upward direction.

The air passing through the first filter 120 may flow to an upper side in a radial direction while passing through the first fan 160, and stably flow in an upward direction while passing through the first and second air guides 170 and 180. The air passing through the first and second air guides 170 and 180 may bypass the first discharge guide 190 and flow through the first discharge portion 105 in an upward direction. The air discharged through the first discharge part 105 may be guided by the separation plate 430 positioned at the upper side of the first discharge guide 190 and thus may be discharged to the outside of the air cleaner 10.

If the second fan 260 is driven, indoor air may be sucked into the inside of the second case 201 through the second suction part 202 and the base suction part 103. The sucked air may pass through the second filter 220, and foreign materials in the air may be filtered out in the process. During the air passes through the second filter 220, the air may be sucked in a radial direction of the second filter 220, filtered, and then flow in an upward direction.

That is, the air sucked through the lower suction portion 202a of the second suction portion 202 may pass through the second filter 220 while flowing radially inside. Further, the air sucked through the upper suction portion 202b may flow in a downward direction along the housing suction flow path 259 and pass through the second filter 220 by flowing to the outer circumferential surface of the second filter 220. During the air passes through the second filter 220, the air may be sucked in a radial direction of the second filter 220, filtered, and then flow in an upward direction.

The air passing through the second filter 220 may flow to an upper side in a radial direction while passing through the second fan 160, and may stably flow in an upward direction while passing through the third air guide 270 and the second discharge guide 280. The air passing through the third air guide 270 and the second discharge guide 280 may be discharged through the second discharge portion 305 via the flow regulation device 300.

Meanwhile, if the air flow control device 300 is in the first position where the air flow control device 300 is tiled as shown in fig. 17, the air discharged from the air flow control device 300 may flow in an upward direction. On the other hand, if the airflow control device 300 is in the second position in which the airflow control device 300 is inclined as shown in fig. 18, the air discharged from the airflow control device 300 may flow toward the front upper side. By the air flow control means 300, the amount of air discharged from the air cleaner 10 can be increased, and purified air can be supplied to a location remote from the air cleaner 10.

FIG. 19 is a view of a filter frame according to another embodiment. Referring to fig. 19, the first filter frame 130 according to this embodiment may include: flow guide portions or flow guides 135g and 136a that guide the air flow so that the air sucked through the first suction part 102 or the base suction part 103 can be easily introduced to the first filter 120.

The flow guides 135g and 136a may include a first flow guide or first flow guide 135g provided to the first filter support 135. A first flow guide 135g may be formed at each of the

first frames

135a and 135b and the

second frames

135c and 135 d. In addition, the flow guides 135g and 136a may further include a second flow guide or a second flow guide 136a provided to the first support cap 136.

The flow guides 135g and 136a may include slits through which air may pass. Since the flow guides 135g and 136a are provided, air may be introduced into the first filter 120 through the first support cover 136 and the first filter support 135. In other words, a phenomenon in which the first support cover 136 and the first filter support 135 function as air flow obstacles can be avoided.

According to the embodiments disclosed herein, since the suction part may be formed along the outer circumferential surface of the cylindrical housing and air may be sucked in a radial direction through the suction part or the inlet, the suction capability may be improved and structural resistance of the housing may not be generated during air suction. In particular, the suction part may include a plurality of holes (apertures) thereon, and since the plurality of holes may be uniformly formed on the entire outer circumferential surface of the housing, a suction flow path that may be guided into the air cleaner may be formed in a 360-degree direction with respect to the air cleaner. Finally, the suction area of the air can be increased, and the air around the person in the room can be sufficiently sucked regardless of whether the person in the room sits down or stands.

The filter member of the filter may be stably supported by the filter frame and may be conveniently installed in an installation space formed inside the filter frame. In particular, the filter member may be coupled to the installation space by moving in a radial direction, and may be separated from the installation space by moving away from the installation space in a radial direction, so that a user may increase the convenience of attaching and detaching the filter.

Since the filter member may be provided in a cylindrical shape, air may be introduced from the outside of the filter member to the inside of the filter member in all directions, so that the suction area may be increased. Therefore, the air cleaning capability of the filter can be improved. Further, the filter frame may include: a lower frame which can be disposed at a lower portion of the filtering member; an upper frame which may be disposed at an upper portion of the filtering member; and a support frame extending from the lower frame to the upper frame, so that an installation space of the filter member can be provided, thereby improving space utilization of the air cleaner.

Since a plurality of support frames may be provided, the upper frame and the lower frame may be stably supported. Also, it is possible to stably support the components of the air cleaner, which may be disposed at the upper side of the filter frame. The plurality of support frames may include: two lower frames, and an upper frame may be disposed at a rear portion in a space between the two lower frames, and an insertion portion into or from which the filter member may be inserted or removed may be formed at a front portion in the space between the two lower frames. Therefore, the filter member can be easily attached and detached, and the fan that can be disposed on or at the upper side of the filter member can be stably supported.

Also, since the length (or width) of the circumferential direction of the lower frame may be greater than the length (or width) of the circumferential direction of the upper frame, the supporting force of the front portion in the space between the two lower frames may be enhanced. Further, a lever device, which may include a support device or a supporter and a handle, may be provided on or at a lower side of the filter member, and the movement to the mounting position or the releasing position of the filter member may be easily performed by manipulating the handle.

The support frame may include: a flow guide part or a flow guide (slit) may guide air sucked through the suction part or the inlet of the housing to the filter member so that the air may smoothly flow. Further, the first housing or the second housing may be stably supported by the filter frame, and the suction part or the inlet formed in each of the first housing and the second housing may be positioned relatively close to the filter member. Finally, the flow loss of the air flowing into the filter member through the suction portion can be reduced.

Since a plurality of air blowing devices may be provided, the blowing capability of the air cleaner may be improved. Since a centrifugal fan for increasing the blowing capacity of the air cleaner and the air guide may be provided, wherein the air guide may be arranged on or at the outlet side of the centrifugal fan, the air flowing through the centrifugal fan in the radial direction may be easily directed in the upward direction towards the discharge portion.

Since the airflows are generated independently of each other by the first and second air blowing devices, a phenomenon in which the airflows interfere with each other can be prevented. Thus, the air flow capacity can be improved. Since the blower fan may include therein a turbo fan that sucks air in an axial direction and then discharges the air in a radial direction, the amount of blowing air may be increased.

Embodiments disclosed herein provide an air cleaner capable of improving a suction capacity of air sucked into the air cleaner. Embodiments disclosed herein also provide an air cleaner that improves a position of a suction inlet formed in a housing, thereby increasing a flow rate of air sucked through the suction inlet.

Embodiments disclosed herein provide an air cleaner that facilitates air drawn in through a suction inlet to flow into a filter member or a filter by improving the shape of a fan housing in which a fan of the air cleaner is received. In particular, embodiments disclosed herein also provide an air cleaner capable of smoothly achieving an air flow toward a filter member by improving the size of an air flow path arranged or provided from a suction part toward the filter member by improving the shape of a fan housing.

Embodiments also provide an air cleaner capable of easily separating a housing and easily accessing internal components of the air cleaner by a user by improving a structure of the housing. Embodiments also provide an air cleaner, the blowing capacity of which can be improved.

Embodiments provide an air cleaner that improves the purification capability of a filter and can easily perform replacement of the filter. In particular, embodiments provide an air cleaner that includes a filter member or filter that is easily removable from the interior of a cylindrical housing. Embodiments also provide an air cleaner in which a filter member can be stably supported.

Embodiments also provide an air cleaner in which a fan housing disposed or provided at an outlet portion of a filter can be stably supported.

Embodiments disclosed herein provide an air cleaner, which may include: a cylindrical housing including a suction portion or an inlet to suck air in a radial direction; a filter member or filter configured to be detachably disposed in the housing and having a cylindrical shape; and a filter frame configured to support the filter member. The filter frame may include: a lower frame disposed at a lower portion of the filter member; an upper frame disposed at an upper portion of the filter member; and a plurality of support frames extending from the lower frame to the upper frame. An access portion may be formed between the plurality of support frames, the access portion configured to receive a filter member. The plurality of support frames may be arranged in a circumferential direction.

The plurality of support frames may include: two first frames; and a second frame disposed or provided in a space between the two first frames. The space may include a front portion and a rear portion. The entrance portion may form a front portion of the space. The second frame may be arranged or disposed in the rear portion of the space. The length of the first frame in the circumferential direction may be greater than the length of the second frame in the circumferential direction.

The first frame or the second frame may include: an air flow guide part or an air flow guide part which guides the air sucked through the suction part to the filter member. The airflow guide may include a slit.

The second frame and the two first frames may be arranged or provided to support the outer circumferential surface of the filter member. The first frame may include: a flat surface portion or a flat surface configured to guide installation of the filter member; and a curved surface portion or a curved surface configured to extend in a circular arc shape from the flat surface toward the second frame and support the filter member. The second frame may be provided in plural.

The air cleaner may further include: a frame cover coupled with an outside of the support frame; and a cable space part or a cable space formed between the support frame and the frame cover, in which the cable is arranged or disposed. The air cleaner may further include: a support member or support disposed or provided within the lower frame to support the underside of the filter member. A plurality of support frames may be arranged along the periphery of the support member.

The air cleaner may further include: a handle mounted or provided in or at the underside of the support member, the handle being manipulated to move the filter member in an upward or downward direction. The filter member may be moved in an upward direction so as to be installed in an installation space within the filter frame when the handle is rotated in one direction or a first direction. The filter member may be moved in a downward direction to a position where the filter member is detachable from the installation space when the handle is rotated in one direction or a second direction.

Embodiments disclosed herein also provide an air cleaner, which may include: a housing including a suction portion or an inlet to suck air in a radial direction; a filter member or filter detachably provided in the housing; a fan disposed or provided in an outlet side of the filter member; a lower frame disposed at a lower portion of the filter member; an upper frame disposed at an upper portion of the filter member; and a support frame extending from the lower frame to the upper frame. The lower frame, the upper frame and the support frame may form an installation space of the filter member. The filter member may be installed therein to be movable radially toward the installation space.

The housing may have a cylindrical shape, and the suction portion may be formed in an outer circumferential surface of the housing to guide air sucked in a radial direction. The support frame may include a plurality of first frames. The entrance portion of the installation space may be formed in or at the front portion of the space between the plurality of first frames.

The support frame may include a second frame, which may be disposed or set in a rear portion of a space between the plurality of first frames.

The air cleaner may further include a fan housing that receives the fan. The upper frame may support the fan housing.

The details of one or more embodiments are set forth in the accompanying drawings and the description. Other technical features will be readily apparent from the description and drawings, and from the claims.

Reference in the specification to "one embodiment," "an example embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment. Further, when a feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments.

While the invention has been described with reference to a number of illustrative embodiments, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More particularly, various modifications and variations may be made in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.

Claims

1. An air cleaner comprising:

an air cleaning module comprising: a fan housing in which the fan is disposed; a filter frame forming an installation space for a cylindrical filter and a discharge outlet provided at an outlet side of the fan;

a housing coupled to the air cleaning module, the housing having a suction opening in which a plurality of through-holes are formed and having a cylindrical shape,

wherein the filter frame comprises:

a lower frame disposed at a lower portion of the air cleaning module;

an upper frame disposed at an upper portion of the air cleaning module; and

a plurality of support frames connecting the lower frame and the upper frame,

wherein the fan housing is disposed above and supported by the filter frame,

wherein the plurality of support frames are arranged in a circumferential direction along the lower frame, and

wherein the plurality of support frames include two frames disposed along a center line passing through a center of the lower frame and forming an insertion portion through which the cylindrical filter passes,

wherein the front surfaces of the two frames form an angle equal to or less than 180 degrees with respect to the center of the lower frame,

wherein the case formed with a plurality of through holes is spaced apart from the plurality of support frames.

2. The air cleaner according to claim 1 wherein said plurality of support frames further comprises a frame disposed at a rear surface of said two frames.

3. The air cleaner according to claim 1 wherein said plurality of support frames further comprises frames disposed on opposite sides of said insertion portion.

4. The air cleaner according to claim 3 wherein a circumferential length of each of said two frames is different from a circumferential length of a frame disposed on an opposite side of said insertion portion.

5. The air cleaner according to claim 4 wherein a circumferential length of each of said two frames is greater than a circumferential length of a frame disposed on an opposite side of said insertion portion.

6. The air cleaner according to claim 1 wherein a front portion of said two frames is formed integrally with said upper frame or said lower frame.

7. The air cleaner according to claim 1 wherein said two frames are disposed along a center line passing through a center of said lower frame and opposite to each other at a periphery of said lower frame.

8. The air cleaner according to claim 1 wherein said filter frame includes a flow guide including an aperture through which air passes, wherein said flow guide is disposed at a space between said housing and said support frame.

9. The air cleaner according to claim 1 wherein at least one of said plurality of support frames is formed with a flow guide through which air sucked through said plurality of through-holes passes to prevent said plurality of support frames from generating resistance to the flow of air.

10. The air cleaner according to claim 1 further comprising a frame cover coupled to one of said plurality of support frames,

wherein a cable space in which a cable is positioned is formed between one of the plurality of support frames and the frame cover.

11. The air cleaner according to claim 1 wherein said housing comprises two portions separable from said air cleaning module.

12. The air cleaner according to claim 11 wherein said two portions are arranged to surround an outer peripheral surface of said cylindrical filter, said filter frame and an outer surface of said fan housing when said two portions are coupled to said air cleaning module,

wherein, when the two parts are separated from the air cleaning module to separate the cylindrical filter, an outer circumferential surface of the cylindrical filter, the filter frame, and an outer surface of the fan housing are opened, and the cylindrical filter can be drawn out to the outside in a radial direction through a space between the plurality of support frames.

13. The air cleaner according to claim 11 wherein said two portions are disposed facing relative to a separate portion of said housing.

14. The air cleaner according to claim 1 wherein said plurality of through holes are circumferentially spaced along an outer peripheral surface of said housing such that air is drawn in a 360 degree direction relative to a centerline of said housing along a vertical direction.

15. The air cleaner according to claim 1 wherein said suction inlet includes:

a lower suction part through which air flows radially into the interior of the housing and passes through the cylindrical filter; and

an upper suction part through which air flows in a downward direction along a casing suction flow path formed between the case and the fan casing and passing through the cylindrical filter.

16. The air cleaner according to claim 15 wherein said housing suction flow path is formed between an inner surface of said housing and an outer surface of said fan housing to allow air sucked through said upper suction portion to flow toward said cylindrical filter.

17. The air cleaner according to claim 15 wherein said plurality of through-holes comprises a lower through-hole formed at a height corresponding to said cylindrical filter and an upper through-hole formed at a height higher than said cylindrical filter.

18. The air cleaner according to claim 1, further comprising a sensor disposed at said filter frame, and

wherein the sensor comprises at least one of the following sensors:

a dust sensor sensing an amount of dust in the air sucked through the plurality of through holes; and

a gas sensor sensing a quantity of gas in the air inhaled through the plurality of through holes.

19. The air cleaner according to claim 18 wherein said sensor is disposed at an upper portion of said filter frame.

20. The air cleaner according to claim 18 further comprising a sensor mounting portion in which said sensor is mounted,

wherein the sensor mounting part protrudes from an outer circumferential surface of the filter frame.

21. The air cleaner according to claim 20 wherein said housing covers said sensor and said sensor mounting portion.

22. The air cleaner according to claim 1, wherein the cylindrical filter is formed with filter holes formed to vertically pass through the cylindrical filter,

wherein the upper frame has a ring shape and an inner space of the upper frame forms a frame opening, and

wherein the filter holes and the frame opening are provided in a vertical arrangement.

23. The air cleaner according to claim 22 wherein said upper frame further comprises a housing mounting portion protruding from an inner peripheral surface of said upper frame to support said fan housing, and

wherein an inner space of the housing mounting part forms the frame opening.

24. The air cleaner according to claim 22 further comprising a fan introduction part formed at a lower portion of said fan housing,

wherein the fan introduction part and the frame opening are provided to be vertically arranged.

25. The air cleaner according to claim 1 wherein said lower frame is annular and

wherein a support part supporting the cylindrical filter is provided at an inner space of the lower frame.

26. The air cleaner according to claim 1 wherein said cylindrical filter comprises a filter body comprising a cylindrical filter surface and a filter grip,

wherein the filter body is formed with filter holes penetrating an upper portion of the cylindrical filter such that air passing through the surface of the filter flows through the filter holes.

27. The air cleaner according to claim 26 wherein said filter body includes a first filter portion and a second filter portion disposed within said first filter portion,

wherein the first filter portion and the second filter portion are hollow cylindrical, and

wherein the filter holes are formed in an inner circumferential surface of the second filter portion.

28. The air cleaner according to claim 27 wherein said filter grip protrudes from an outer peripheral surface of an upper portion of said first filter portion.