Air purifier

Abstract

This air purifier comprises: a housing assembly having formed therein an inlet port through which external air flows in, a first outlet port opened frontward, and a second outlet port opened backward; and a body portion which filters air flowing into the housing assembly and discharges the filtered air to the outside, wherein the body portion comprises: a fan unit providing a blowing force so that the external air can flow into the internal space of the housing assembly; a filter unit which filters the air flowing into the internal space of the housing assembly; and a flow guide which comprises an air passage guiding the air filtered by the filter unit of the housing assembly to be discharged to the outside, and extends in a back-and-forth direction. The flow guide comprises: a first guide guiding the air to flow to the first outlet port; a second guide guiding the air to flow to the second outlet port; a third guide arranged between the first guide and the second guide; and a damper which is movable in the back-and-forth direction so as to adjust at least one of a wind volume and a wind direction in at least one of the first guide, the second guide, and the third guide.

Description

air purifier

[0001] The present invention relates to an air purifier.

[0002] Typically, an air purifier is a device that draws in polluted indoor air, filters it to remove dust, odor particles, and other contaminants, and then purifies the air. These air purifiers filter indoor air by drawing in polluted air, filtering it, and then expelling the filtered, clean air outside the purifier.

[0003] Such air purifiers may include an inlet for drawing air inside, a filter for filtering out dust and odor particles contained in the air drawn inside, and one or more outlets for discharging air filtered from the filter.

[0004] Existing air purifiers have featured one or more outlets to discharge filtered air in multiple directions. However, these devices have limited flexibility in air discharge direction, depending on their placement, while maintaining the air flow rate and wind volume. For example, existing air purifiers cannot change the air discharge direction forward or backward, or 360 degrees.

[0005] A technology for increasing the flow rate and wind volume of discharged air while having one or more air outlets is disclosed in the applicant's published patent publication No. 10-2018-0018628 "Air Conditioning Device" (Patent Document 1). Patent Document 1 discloses an air conditioning device including an air intake for introducing outside air, a first air outlet for discharging air, an air guide formed in a trumpet shape and penetrating an air purifier to increase the flow rate and wind volume of air discharged through the first air outlet, and a through hole penetrating from one surface to the other surface via the air guide.

[0006] However, Patent Document 1 only discloses that the air conditioning device selectively discharges air forward or upward, and does not disclose that the air can be discharged forward or backward, or that the direction of the air discharge can be varied left and right, and does not disclose that the air can be discharged in all directions. In other words, the air conditioning device disclosed in Patent Document 1 has a problem in that it cannot change the discharge direction differently depending on the shape of the space and the arrangement position of the air purifier.

[0007] One embodiment of the present invention was invented against the background described above, and aims to provide an air purifier capable of changing the discharge direction differently depending on the shape of the space and the placement position of the air purifier.

[0008] In addition, we aim to provide an air purifier that can change the direction of air discharged forward and backward, and whose discharge port can rotate 360 ​​degrees to supply air in all directions.

[0009] An air purifier according to one aspect of the present invention comprises: a housing assembly having an inlet for introducing outside air, a first outlet opening toward the front, and a second outlet opening toward the rear; and a body part for filtering air introduced into the housing assembly and discharging it to the outside, wherein the body part comprises: a fan unit for providing a blowing force so that outside air is introduced into an internal space of the housing assembly; a filter part for filtering air introduced into the internal space of the housing assembly; an air passage for guiding air filtered by the filter part of the housing assembly to be discharged to the outside, and a flow guide extending in a front-rear direction, wherein the flow guide comprises: a first guide for guiding air to flow to the first outlet; a second guide for guiding air to flow to the second outlet; a third guide disposed between the first guide and the second guide; And it includes a damper configured to be movable in the forward and backward direction to adjust at least one of the wind volume and wind direction in at least one of the first guide, the second guide, and the third guide.

[0010] In addition, the second guide may include a second flow path through which air introduced into the internal space of the housing assembly flows, and the damper may be formed to surround the outside of the third guide so as to close the second flow path when moved rearward.

[0011] Additionally, an air purifier may be provided in which the third guide and the damper are connected so that the damper moves together when the third guide moves.

[0012] In addition, the damper may be formed as a separate body from the third guide and configured to move independently of the third guide.

[0013] Additionally, the third guide may be configured not to move when the damper moves.

[0014] In addition, the first guide includes a first flow path through which air introduced into the internal space of the housing assembly flows, and the damper can move in the forward and backward direction to be placed in a first position that closes the second flow path and opens the first flow path, or to be placed in a second position that opens the second flow path and the first flow path.

[0015] In addition, when the flow rate of air discharged through the first outlet at the first position is referred to as the first flow rate, and the sum of the flow rates of air discharged through the first outlet and the second outlet at the second position is referred to as the second flow rate, the first flow rate may be greater than the second flow rate.

[0016] Additionally, the fan unit can provide greater blowing force when the damper is positioned in the second position than when the damper is positioned in the first position.

[0017] In addition, the first guide includes a first flow path through which air introduced into the internal space of the housing assembly flows, and the damper can move forward and backward so as to be placed in a third position that closes the first flow path and opens the second flow path, or in a second position that opens the second flow path and the first flow path.

[0018] Additionally, the third guide may be arranged to overlap at least a portion of the first guide or the second guide when viewed in a vertical direction perpendicular to the forward-backward direction.

[0019] In addition, the third guide may be formed in a tapered shape so that one end of the third guide adjacent to the first guide becomes closer to the first guide as it goes forward, and the other end of the third guide opposite the one end may be formed in a tapered shape so that the other end becomes closer to the second guide as it goes rearward.

[0020] In addition, the device may further include a rotating part that rotates the body part about a virtual rotation axis that is connected to the body part and extends in the vertical direction so that the direction of air discharged from the body part through the flow guide changes.

[0021] Additionally, a heating device for heating air flowing between the fan unit and the flow guide may be further included.

[0022] Additionally, the housing assembly may be formed with a cover discharge port that is open toward the top so that air introduced into the internal space of the housing assembly is discharged upward.

[0023] According to one embodiment of the present invention, filtered air can be discharged forward, backward, or both forward and backward depending on the relative positions of the flow guides arranged inside the air purifier, so that the discharge direction can be changed differently depending on the shape of the space and the arrangement position of the air purifier.

[0024] In addition, according to one embodiment of the present invention, a heating device is arranged inside the air purifier so that filtered air can be effectively heated and discharged to the outside, thereby simultaneously purifying and heating the air without taking up a lot of indoor space.

[0025] Figure 1 is a perspective view of an air purifier according to one embodiment of the present invention.

[0026] Figure 2 is an exploded perspective view of the air purifier of Figure 1.

[0027] Figure 3 is a cross-sectional view taken along the III-III section line of Figure 1.

[0028] Fig. 4 is a cross-sectional view of the air purifier taken along the IV-IV section line of Fig. 1 when the damper is in the first position.

[0029] Fig. 5 is a cross-sectional view of the air purifier taken along the VV cut line of Fig. 1 when the damper is in the first position.

[0030] Figure 6 is an enlarged cross-sectional view of part A of Figure 4.

[0031] Figure 7 is a cross-sectional view of the damper illustrated in Figure 4 when it is in the second position.

[0032] Figure 8 is a cross-sectional view of the damper illustrated in Figure 5 when it is in the second position.

[0033] Hereinafter, specific embodiments for implementing the technical idea of ​​the present invention will be described in detail with reference to the drawings.

[0034] In addition, when explaining the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description is omitted.

[0035] Additionally, when it is said that a component is 'inflowing' or 'connected' to another component, it should be understood that it may be directly inflowing or connected to that other component, but there may also be other components in between.

[0036] The terminology used herein is intended solely to describe specific embodiments and is not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

[0037] Additionally, please note that the terms "upper side," "lower side," and "side" in this specification are based on the illustrations in the drawings and may be expressed differently if the orientation of the subject changes. For the same reason, some components in the attached drawings are exaggerated, omitted, or schematically depicted, and the sizes of each component do not fully reflect the actual size.

[0038] Additionally, terms that include ordinal numbers, such as "first," "second," etc., may be used to describe various components, but these components are not limited by such terms. These terms are used solely to distinguish one component from another.

[0039] The term "comprising" as used in the specification means specifying a particular characteristic, region, integer, step, operation, element and / or component, but does not exclude the presence or addition of other particular characteristics, regions, integers, steps, operations, elements, components and / or groups.

[0040] Hereinafter, a specific configuration of an air purifier (1) according to one embodiment of the present invention will be described with reference to the drawings. In the following description, directions are based on the front, back, left, right, up, and down directions shown in FIG. 1.

[0041] Referring to FIGS. 1 and 2, an air purifier (1) according to one embodiment of the present invention can filter polluted air into clean air by filtering dust, odor particles, etc. in the air introduced into the interior of the air purifier (1). The air purifier (1) can heat the filtered air and discharge it to the outside. In addition, the air purifier (1) can include a housing assembly (10), a body part (20), and a rotating part (30).

[0042] The housing assembly (10) can accommodate a body portion (20) and a rotating portion (30). The housing assembly (10) may be formed with an inlet (121) through which external air, which will be described later, is introduced, a first discharge port (122) open toward the front, and a second discharge port (131) open toward the rear. In addition, the housing assembly (10) may include a cover portion (110), a first body portion (120), and a second body portion (130).

[0043] The cover part (110) can be connected to the first body part (120) and the second body part (130) to form the exterior of the air purifier (1). This cover part (110) can be placed on the upper side of the air purifier (1). In addition, the cover part (110) can include a cover outlet (111), a cover body (112), and a cover rib (113).

[0044] The cover outlet (111) can provide a space for air introduced into the internal space of the housing assembly (10) to be discharged upward. This cover outlet (111) can be formed in the cover body (112) so as to be open toward the top.

[0045] The cover body (112) can be placed on the upper side of the air purifier (1) to support the cover rib (113). This cover body (112) can be connected to the first body part (120) and the second body part (130) and can form the upper surface of the air purifier (1).

[0046] The cover rib (113) can open a path through which air is discharged to the cover outlet (111). This cover rib (113) can be placed on the lower side of the cover body (112). In addition, the cover rib (113) can be connected to a driving member (not shown) and opened and closed by receiving driving force from the driving member.

[0047] The first body part (120) can be interlocked with the second body part (130) to form the exterior of the air purifier (1). An inlet (121) and a first outlet (122) can be formed in the first body part (120).

[0048] An inlet (121) may be formed in the first body part (120) and may be a space through which air flows from the outside of the air purifier (1) into the inside of the air purifier (1). A plurality of such inlets (121) may be provided. In addition, the inlet (121) may be formed in a circular shape. A plurality of inlets (121) may be formed in the first body part (120) at a certain interval from each other.

[0049] Referring further to FIG. 3, the first discharge port (122) may be formed in the first body portion (120) and may be a space through which air introduced into the interior of the housing assembly (10) is discharged to the outside. This first discharge port (122) may be opened toward the front of the housing assembly (10). In addition, the first discharge port (122) may be formed in a circular shape. The diameter of the first discharge port (122) may be formed to be larger than the diameter of the second discharge port (131).

[0050] The second body part (130) can be connected to the first body part (120) and form the exterior of the air purifier (1) together with the second body part (120). A second discharge port (131) can be formed in the second body part (130).

[0051] A second discharge port (131) is formed in the second body portion (130) to discharge air introduced into the interior of the housing assembly (10) to the outside. This second discharge port (131) may be opened toward the rear of the housing assembly (10). In addition, the second discharge port (131) may be formed in a circular shape. The diameter of the second discharge port (131) may be formed to be smaller than the diameter of the first discharge port (122).

[0052] The body part (20) can filter the air introduced into the housing assembly (10) and discharge the filtered air to the outside. The body part (20) can be configured to be rotatable with respect to the rotating part (30). In addition, the body part (20) can include a heating device (210), a flow guide (220), a guide housing (230), a driving part (240), a fan unit (250), a filter part (260), and a controller (270).

[0053] Referring to FIGS. 4 to 6, a heating device (210) can heat air flowing between a fan unit (250) and a flow guide (220). This heating device (210) can generate heat by receiving electric current. In addition, a plurality of heating devices (210) may be provided. A plurality of heating devices (210) may be arranged on both sides with the flow guide (220) at the center. The plurality of heating devices (210) may be oriented to form a predetermined angle with respect to each other. In addition, the plurality of heating devices (210) may be arranged such that a lower distance, which is a distance spaced apart from the lower side, is smaller than an upper distance, which is a distance spaced apart from the upper side. The heating device (210) may be arranged closer to the rear part of the housing assembly (10) than to the front part of the housing assembly (10) when viewed from the side. This heating device (210) can be placed adjacent to the third guide (223) described later when viewed from the side.

[0054] The flow guide (220) can provide an air passage that guides air filtered by the filter unit (260) to be discharged to the outside. The flow guide (220) can extend in the front-rear direction. In addition, the flow guide (220) can guide air introduced into the internal space of the housing assembly (10) to flow to the first discharge port (122) or the second discharge port (131), or can guide air introduced into the internal space of the housing assembly (10) to flow to the first discharge port (122) and the second discharge port (131). The flow guide (220) can include a first guide (221), a second guide (222), a third guide (223), and a damper (224).

[0055] The first guide (221) can guide air to flow to the first outlet (122). This first guide (221) can be connected to the first body part (120). In addition, the first guide (221) can be formed in a tapered shape. For example, the diameter of one end of the first guide (221) adjacent to the first outlet (122) can be formed to be larger than the diameter of the other end opposite the one end. The first guide (221) can include a first flow path (221a).

[0056] The first flow path (221a) can guide the filtered air introduced into the internal space of the housing assembly (10) to flow to the first outlet (122). The first flow path (221a) can be formed between the first guide (221) and the third guide (223) when viewed from above and below. In addition, the first flow path (221a) can be formed on the opposite side of the first outlet (122). The first flow path (221a) can be closed or opened by the damper (224) moving forward and backward.

[0057] The second guide (222) can guide air to flow to the second outlet (131). This second guide (222) can be connected to the second body part (130). In addition, the second guide (222) can be formed in a tapered shape. For example, the diameter of the other end of the second guide (222) adjacent to the second outlet (131) can be formed to be larger than the diameter of one end opposite the other end. The second guide (222) can include a second flow path (222a).

[0058] The second flow path (222a) can guide the filtered air introduced into the internal space of the housing assembly (10) to flow to the second outlet (131). This second flow path (222a) can be formed between the second guide (222) and the third guide (223) when viewed from the top and bottom. In addition, the second flow path (222a) can be formed on the opposite side of the second outlet (131). The second flow path (222a) can be closed or opened by the damper (224) moving forward and backward.

[0059] The third guide (223) may be arranged between the first guide (221) and the second guide (222) to guide air to flow to the first outlet (122) or the second outlet (131). The third guide (223) may be connected to the damper (224). In other words, when the third guide (223) moves, the damper (224) may also move together. However, the spirit of the present invention is not limited thereto, and the third guide (223) may be formed as a separate body from the damper (224) and configured to be independently movable relative to the third guide (223), so that the third guide (223) may not move when the damper (224) moves. In addition, the third guide (223) may be arranged to overlap at least a portion of the first guide (221) or the second guide (222) when viewed in a direction perpendicular to the front-rear direction. The third guide (223) may be formed so that both ends in the front-back direction have the same diameter, but is not limited thereto. For example, although not illustrated, one end of the third guide (223) adjacent to the first guide (221) may be formed in a tapered shape so as to become closer to the first guide (221) as it goes forward. The other end of the third guide (223), which is opposite to one end of the third guide (223), may be formed in a tapered shape so as to become closer to the second guide (222) as it goes rearward. In other words, the third guide (223) may be formed so that the first flow path (221a) becomes narrower as it goes forward, and the second flow path (222a) becomes narrower as it goes rearward.

[0060] The damper (224) can control at least one of the air volume and the air direction in at least one of the first guide (221), the second guide (222), and the third guide (223). The damper (224) can be configured to be movable in the forward and backward direction by the driving unit (240). In addition, the damper (224) can be positioned in a first position that closes the second flow path (222a) and opens the first flow path (221a), a second position that opens both the second flow path (222a) and the first flow path (221a), or a third position that closes the first flow path (221a) and opens the second flow path (222a) by being moved in the forward and backward direction. In addition, the damper (224) can be formed to surround the outside of the third guide (223).

[0061] When the damper (224) is placed in the first position, it moves to the rearmost side to close the gap between the second guide (222) and the third guide (223), thereby closing the second flow path (222a). In addition, when the damper (224) is placed in the second position, it moves further forward than the first position, so that the third guide (223) can be positioned between the first guide (221) and the second guide (222) when viewed from the side (when viewed from the left and right). In addition, when the damper (224) is placed in the third position, it moves to the frontmost side to close the gap between the first guide (221) and the third guide (223), thereby closing the first flow path (221a).

[0062] When the damper (224) is placed in the first position, the air flow rate discharged through the first outlet (122) can be referred to as the first flow rate. In addition, the sum of the air flow rates discharged through the first outlet (122) and the second outlet (131) when the damper (224) is placed in the second position can be referred to as the second flow rate. In addition, the air flow rate discharged through the second outlet (131) when the damper (224) is placed in the third position can be referred to as the third flow rate. The first flow rate may be greater than the second flow rate, and the third flow rate may be greater than the second flow rate.

[0063] The guide housing (230) can guide the filtered air filtered in the filter unit (260) to flow upward in the internal space of the housing assembly (10) by the blowing force of the fan unit (250). The guide housing (230) can be positioned above the fan unit (250) and the rotating unit (30). In addition, the guide housing (230) can accommodate a flow guide (220) on the inside.

[0064] The driving unit (240) can move the third guide (223) and the damper (224) in the forward and backward directions. The driving unit (240) can be positioned below the second guide (222) and the third guide (223). In addition, the driving unit (240) can include a moving member (241) and a rotating member (242).

[0065] The movable member (241) can be moved forward and backward by the rotating member (242) to move the third guide (223) forward and backward. This movable member (241) can be connected to the lower side of the damper (224). In addition, a plurality of protrusions spaced at regular intervals can be formed on the lower side of the movable member (241).

[0066] The rotary member (242) can be rotated while being engaged with a plurality of protrusions formed on the lower side of the damper (224). This rotary member (242) can be formed to be engaged with a plurality of protrusions formed on the movable member (241). In other words, as the rotary member (242) rotates, it can be engaged with the movable member (241) to move the movable member (241) forward and backward, and the third guide (223) connected to the damper (224) can also be moved together as the movable member (241) moves forward and backward.

[0067] The fan unit (250) can provide a blowing force so that outside air is introduced into the internal space of the housing assembly (10). The fan unit (250) can provide a greater blowing force when the damper (224) is positioned in the second position than when the damper (224) is positioned in the first position. In addition, the fan unit (250) can be positioned lower than the heating device (210) and the flow guide (220). By the blowing force of the fan unit (250), outside air can be filtered in the filter unit (260) and then flow upward through the guide housing (230) in the internal space of the housing assembly (10).

[0068] The filter unit (260) can filter air introduced into the internal space of the housing assembly (10). This filter unit (260) can be formed to extend vertically. In addition, the filter unit (260) can be placed on the upper side of the rotating unit (30).

[0069] The controller (270) can control the driving unit (240) based on a plurality of operating modes. The plurality of operating modes can include a first mode, a second mode, and a third mode based on the position of the damper (224). This controller (270) can be implemented by a computing device including a microprocessor, and the implementation method thereof is obvious to those skilled in the art, so a further detailed description is omitted.

[0070] The first mode is a mode in which filtered air flows through the first flow path (221a) and the filtered air is discharged only forward toward the first discharge port (122). In this first mode, the controller (270) can control the driving unit (240) so that the damper (224) is placed in a first position that closes the second flow path (222a) and opens the first flow path (221a).

[0071] The second mode is a mode in which filtered air flows through the first flow path (221a) and the second flow path (222a) and the filtered air is discharged forward and backward toward the first discharge port (122) and the second discharge port (131). In this second mode, the controller (270) can control the driving unit (240) so that the damper (224) is placed in the second position that opens the first flow path (221a) and the second flow path (222a).

[0072] The third mode is a mode in which filtered air flows through the second flow path (222a) and is discharged only toward the rear toward the second outlet (131). In this second mode, the controller (270) can control the driving unit (240) so that the damper (224) is placed in the third position, which closes the first flow path (221a) and opens the second flow path (222a).

[0073] The rotating part (30) can rotate the body part (20) about an imaginary rotation axis extending in the vertical direction so that the direction of air discharged from the body part (20) through the flow guide (220) changes. This rotating part (30) can be connected to the body part (20).

[0074] Below, the operation and effect of the air purifier (1) having the configuration described above will be described.

[0075] An air purifier (1) according to one embodiment of the present invention can discharge filtered air forward, backward, or both forward and backward by changing the relative positions of the flow guides (220) arranged inside to close or open the first flow path (221a) and the second flow path (222a). In other words, the discharge direction can be changed differently depending on the shape of the space and the arrangement position of the air purifier (1).

[0076] In addition, according to one embodiment of the present invention, by arranging a rotating part (30) configured to be rotatable at the lowest side of the internal space of the housing assembly (10), the filtered air discharged through the first discharge port (122) and the second discharge port (131) can be discharged 360 degrees based on the air purifier (1).

[0077] In addition, according to one embodiment of the present invention, a heating device (210) is arranged inside the air purifier (1), so that filtered air can be heated and discharged to the outside, thereby filtering air drawn into the air purifier (1) by a user, or heating the air while filtering it. In other words, air purification and air heating can be performed simultaneously without taking up a large amount of indoor space.

[0078] Although the embodiments of the present invention have been described as specific embodiments, these are merely examples, and the present invention is not limited thereto, but should be construed to have the broadest scope in accordance with the technical concepts disclosed in this specification. Those skilled in the art may combine / substitute the disclosed embodiments to implement patterns of shapes not specified, but this also does not depart from the scope of the present invention. In addition, those skilled in the art may easily modify or alter the disclosed embodiments based on this specification, and it is clear that such modifications or alterations also fall within the scope of the present invention.

Claims

1. A housing assembly having an inlet for external air to flow in, a first outlet opening toward the front, and a second outlet opening toward the rear; and It includes a body part that filters the air introduced into the housing assembly and discharges it to the outside, The above body part, A fan unit that provides blowing force to allow outside air to flow into the internal space of the housing assembly; A filter unit that filters air introduced into the internal space of the housing assembly; It includes an air passage that guides air filtered by the filter part of the housing assembly to be discharged to the outside, and includes a flow guide extending in the forward and backward direction. The above fluid guide is, A first guide for guiding air to flow into the first outlet; a second guide for guiding air to flow into the second outlet; a third guide arranged between the first guide and the second guide; and a damper configured to be movable in the forward and backward direction to adjust at least one of the air volume and the air direction in at least one of the first guide, the second guide, and the third guide. Air purifier.

2. In paragraph 1, The above second guide includes a second flow path through which air introduced into the internal space of the housing assembly flows, The above damper, It is formed to surround the outer side of the third guide, and is configured so that the second path is closed when moved backward. Air purifier.

3. In paragraph 2, The third guide and the damper are connected so that when the third guide moves, the damper also moves. Air purifier.

4. In paragraph 2, The above damper is formed as a separate body from the third guide and is configured to move independently of the third guide. Air purifier.

5. In paragraph 4, The third guide is configured not to move when the damper moves. Air purifier.

6. In paragraph 2, The above first guide includes a first flow path through which air introduced into the internal space of the housing assembly flows, The damper is moved in the forward and backward direction so as to be in a first position that closes the second yuan and opens the first yuan, or in a second position that opens the second yuan and the first yuan. Air purifier.

7. In paragraph 6, When the flow rate of air discharged through the first outlet at the first position is referred to as the first flow rate, and the sum of the flow rates of air discharged through the first outlet and the second outlet at the second position is referred to as the second flow rate, the first flow rate is greater than the second flow rate. Air purifier.

8. In paragraph 6, The above fan unit provides a greater blowing force when the damper is placed in the second position than when the damper is placed in the first position. Air purifier.

9. In paragraph 2, The above first guide includes a first flow path through which air introduced into the internal space of the housing assembly flows, The damper is moved in the forward and backward direction so as to be in a third position that closes the first verse and opens the second verse, or in a second position that opens the second verse and the first verse. Air purifier.

10. In paragraph 1, The third guide above is, When viewed in a vertical direction perpendicular to the forward-backward direction, it is arranged to overlap at least a portion of the first guide or the second guide. Air purifier.

11. In paragraph 1, The third guide above is, One end of the third guide adjacent to the first guide is formed in a tapered shape so that it gets closer to the first guide as it goes forward. The other end of the third guide, which is opposite to the first end, is formed in a tapered shape so that it gets closer to the second guide as it goes toward the rear. Air purifier.

12. In paragraph 1, In order to change the direction of air discharged from the body through the flow guide, the body part further includes a rotating part that rotates the body part about an imaginary rotating axis that is connected to the body part and extends in the vertical direction. Air purifier.

13. In paragraph 1, Further comprising a heating device for heating the air flowing between the fan unit and the flow guide. Air purifier.

14. In paragraph 1, The above housing assembly has a cover discharge port formed upwardly so that air flowing into the internal space of the housing assembly is discharged upward. Air purifier.

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