Air treatment device

Abstract

To provide an air treatment device that can efficiently treat air.SOLUTION: An air treatment device 10 comprises a case 20, an air treatment part 30, a fan 33, and a protruding part 37. The case 20 comprises an air intake port 26 for taking outside air, and an air exhaust port 27 for exhausting the taken air to the outside. The air treatment part 30 is provided in the case 20. The fan 33 is provided in the case 20, and generates a flow passage 28 for the air passing through the air intake port 26, the air treatment part 30, and the air exhaust port 27. The protruding part 37 is provided on the case 20, and inhibits a flow of the air from the air exhaust port 27 to the air intake port 26.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] SUMMARY OF THE DISCLOSURE Embodiments of the present invention relate to an air treatment device. [Background technology]

[0002] 2. Description of the Related Art Conventionally, there is an air treatment device that draws in air in a room through an air intake port, treats it, and exhausts the treated air into the room through an exhaust port.

[0003] In such air treatment devices, if the intake and exhaust ports are placed close to each other for the sake of compactness, for example, some of the treated air exhausted from the exhaust port may be sucked in through the intake port, reducing the efficiency of treating the air in the room. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2022-176014 A Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present invention is to provide an air treatment device capable of treating air efficiently. [Means for solving the problem]

[0006] An air treatment device according to an embodiment includes a housing, an air treatment unit, a fan, and a protrusion. The housing has an intake port for drawing in outside air and an exhaust port for exhausting the drawn-in air to the outside. The air treatment unit is provided within the housing. The fan is provided within the housing and creates an air flow path through the intake port, the air treatment unit, and the exhaust port. The protrusion is provided on the housing and obstructs the flow of air from the exhaust port to the intake port. Effect of the Invention

[0007] According to the embodiment, it is expected that air can be treated efficiently. [Brief description of the drawings]

[0008] [Figure 1] 1 is a schematic cross-sectional view of an air treatment device according to a first embodiment. [Diagram 2] FIG. [Diagram 3] FIG. 4 is a schematic cross-sectional view of an air treatment device according to a second embodiment. [Figure 4] FIG. 2 is a schematic front view showing the schematic structure of the air treatment device. [Diagram 5] 6(a) to 6(f) are schematic diagrams showing various examples of protrusions provided in air treatment devices according to other embodiments. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The first embodiment will be described below with reference to FIGS.

[0010] In the following embodiment, the air treatment device is a device that performs air treatment of any one of sterilization, disinfection, sterilization, sterilization, deodorization, and deodorization by a predetermined method on the air circulating inside the air treatment device. In the following, the treatment of the air treatment device will be described as a disinfection treatment, but the disinfection treatment can be replaced with disinfection treatment, sterilization treatment, sterilization treatment, deodorization treatment, and deodorization treatment. In addition, the air treatment function in the following refers to any one of the functions of disinfection, disinfection, sterilization, sterilization, deodorization, and deodorization. In addition, the predetermined method here is light irradiation, photocatalysis, ozone, and the like. Light irradiation refers to irradiation with light of wavelengths such as the UV-C region, UV-B region, UV-A region, visible light region, and infrared region. Photocatalysis refers to suppressing the activity of bacteria, viruses, and odor sources floating in the air, or decomposing them into water and carbon dioxide, by active enzymes and OH radicals generated by irradiating light (ultraviolet light or visible light) to a photocatalyst such as titanium oxide arranged inside the air treatment device. Ozone oxidizes and deodorizes odorous components in the air and on the surfaces of objects.

[0011] 1 and 2 show an air treatment device 10. The air treatment device 10 is installed in a semi-embedded state in an embedding hole 13 formed in a wall surface 12, which is the surface on which the device is installed in the room, and has an air treatment function of treating the air in the room 11. FIG. 1 is a cross-sectional view showing a cross-sectional state in a direction perpendicular to the wall surface 12 when the air treatment device 10 is installed on the wall surface 12. FIG. 2 is a front view showing a state in which the air treatment device 10 is viewed from the front (perpendicular to the wall surface 12, on the indoor 11 side) when the air treatment device 10 is installed on the wall surface 12. The semi-embedded state here means that the air treatment device 10 is installed in the embedding hole 13 so that at least a part of the air treatment device 10 is located (exposed) on the room side from the surface on which the device is installed. The wall surface 12, which is the surface on which the device is installed in the room, may be any of a ceiling surface, a side wall surface, a partition surface, etc., and will be described as a side wall surface in this embodiment. In addition, the ceiling surface, the side wall surface, and the partition surface will be collectively referred to as the wall surface 12 below. The air treatment device 10 is installed in a semi-embedded state in the wall surface 12, and at least a portion of it is located (exposed) in the space of the room 11 where people stay, which is one of two spaces facing the wall surface 12.

[0012] The recessed hole 13 in the wall surface 12 is a hole for installing a wall outlet, a wall switch, etc., or a hole opened for a special purpose, and is formed in, for example, a substantially rectangular shape on the wall surface 12. A power line for supplying AC power, which is external power, is wired inside the recessed hole 13. The power line may be configured to be able to be drawn into the room 11 through the recessed hole 13.

[0013] The air treatment device 10 includes a housing 20. The housing 20 has an embedded housing section 21 that is embedded in an embedding hole 13 in a wall surface 12, and a protruding housing section 22 that is provided on the front side of the embedded housing section 21 and protrudes from the wall surface 12 into the room 11. The housing 20 is a small housing with one side measuring 100 mm or less when viewed from the front side of the protruding housing section 22.

[0014] The embedded housing portion 21 is formed in a shape corresponding to the shape of the embedding hole 13, for example, a substantially rectangular parallelepiped or cubic shape.

[0015] The protruding housing part 22 has an outer shape larger than the embedded housing part 21 when viewed from the front side, and the peripheral part on the rear side is provided so as to face or be in contact with the wall surface 12. The protruding housing part 22 has an outer shape substantially square when viewed from the front side, and is formed into a substantially rectangular shape that is long in the left-right direction. The protruding housing part 22 has a front part 23 and side parts 24 around the front part 23, which are left and right side parts 24a and upper and lower side parts 24b. The outer shape of the protruding housing part 22 when viewed from the front side may be square or circular.

[0016] On one side of the protruding housing part 22, that is, the left side (the left side when the protruding housing part 22 is viewed from the front side), an air intake port 26 is provided in the front face part 23 and the side face part 24. On the other side of the protruding housing part 22, that is, the right side (the right side when the protruding housing part 22 is viewed from the front side), an air exhaust port 27 is provided in the front face part 23 and the side face part 24. Note that the air intake port 26 and the air exhaust port 27 may be provided only in the front face part 23 or only in the side face part 24. Also, one of the air intake port 26 and the air exhaust port 27 may be provided in the front face part 23, and the other of the air intake port 26 and the air exhaust port 27 may be provided in the side face part 24.

[0017] The housing 20 contains the first air processing unit 31 and the second air processing unit 32, which are the air processing unit 30, a fan 33, and a power supply unit (not shown). The housing 20 contains a flow path 28 through which air flows in the order of the intake port 26, the first air processing unit 31, the fan 33, the second air processing unit 32, and the exhaust port 27.

[0018] The first air treatment device 31 is an upstream air treatment device located between the intake port 26 and the fan 33, and the second air treatment device 32 is a downstream air treatment device located in the flow path 28 between the fan 33 and the exhaust port 27.

[0019] The air treatment unit 30 (31, 32) includes a photocatalytic filter 34 and an ultraviolet light source 35 that irradiates the photocatalytic filter 34 with light. The ultraviolet light source 35 is an example of a light source, and when the photocatalyst supported on the photocatalytic filter 34 is excited by visible light, a visible light source that irradiates visible light may be used as the light source. Each of the air treatment units 31, 32 includes a photocatalytic filter 34 and an ultraviolet light source 35, and the photocatalytic filter 34 is disposed on the side of the central fan 33, and the ultraviolet light source 35 is disposed on the opposite side of the fan 33. This arrangement prevents light from the ultraviolet light source 35 from leaking to the outside through the intake port 26 and the exhaust port 27.

[0020] The photocatalyst filter 34 includes a support and a photocatalyst supported on the surface of the support. The support has a plurality of vent holes formed therein, which penetrate the flow path 28 in the direction in which air flows. The photocatalyst is titanium oxide or the like, which is applied to and held on the surface of the support (i.e., the surface that comes into contact with air) and supported thereon. The photocatalyst may also be supported on the plurality of vent holes. When the photocatalyst is irradiated with ultraviolet light of, for example, 360 nm to 420 nm UV-A wavelength components or visible light from the ultraviolet light source 35, it generates active enzymes and OH radicals, and the generated active enzymes and OH radicals decompose odor components in the air to deodorize or eliminate odors, or suppress the activity of bacteria and viruses floating in the air.

[0021] The ultraviolet light source 35 is equipped with a light-emitting element that emits light that excites the photocatalyst supported on the photocatalyst filter 34. The light-emitting element is a photocatalyst excitation LED that emits at least light in the ultraviolet region of the UV-A wavelength component of 360 nm to 420 nm, or light in the visible region, to excite the photocatalyst supported on the photocatalyst filter.

[0022] In addition, the air treatment unit 30 can improve the treatment capacity even in a small air treatment device 10 by arranging two air treatment units 31 and 32 on the upstream and downstream sides of the fan 33, but only one may be used. In addition to (or instead of) the photocatalytic filter 34 and the ultraviolet light source 35, the air treatment unit 30 may also be equipped with an ultraviolet light source that is a sterilization LED that emits ultraviolet light with a UV-C wavelength component having a peak wavelength of 300 nm or less for sterilizing air, preferably an ultraviolet light with a wavelength component of 200 to 280 nm, or may be equipped with an ozone generator that generates ozone in addition to (or instead of) the photocatalytic filter 34 and the ultraviolet light source 35. The air treatment unit 30 may be equipped with at least one of the photocatalytic filter 34 and the UV-A ultraviolet light source 35, the UV-C ultraviolet light source, and the ozone generator, or may be equipped with multiple types or all types.

[0023] The fan 33 is an axial fan that draws in air from the intake port 26 side, which is one side in the axial direction, and discharges the air toward the exhaust port 27 side, which is the other side.

[0024] When the housing 20 is installed in the recess 13 of the wall surface 12, the power supply unit is connected to a power line wired in the recess 13 to input AC power, and converts the AC power into a predetermined operating power to supply to the fan 33 and the ultraviolet light source 35. The power supply unit may be disposed outside the housing 20.

[0025] In addition, the housing 20 has a protrusion 37 that blocks the flow of air from the exhaust port 27 to the intake port 26. The protrusion 37 protrudes from the front surface 23 of the housing 20 at an intermediate position where the distances from the exhaust port 27 and the intake port 26 are equal, and functions as a partition for the flow of air from the exhaust port 27 to the intake port 26. The protrusion 37 protrudes over the entire width of the front surface 23 of the housing 20 in the up-down direction with respect to the left-right direction connecting the exhaust port 27 and the intake port 26. The protrusion 37 protrudes perpendicularly from the front surface 23 of the housing 20, that is, the angle between the side surface of the protrusion 37 and the front surface 23 of the housing 20 is 90 degrees.

[0026] If the distance between exhaust port 27 and intake port 26 along only front surface 23, which is the surface of housing 20, when protrusion 37 is not present, is L1, and the distance (corresponding to the creepage distance) including front surface 23, which is the surface of housing 20 between exhaust port 27 and intake port 26, and the surface of protrusion 37, when protrusion 37 is present, is L2, distance L2 is longer than distance L1, and distance L2 is preferably at least twice distance L1. In other words, the protruding height of protrusion 37 from housing 20 is preferably a dimension such that distance L2 is at least twice distance L1.

[0027] The protrusion 37 may protrude from multiple locations, such as two locations on the exhaust port 27 side and the intake port 26 side of the housing 20, and may further protrude from the front surface 23 to the side surface 24 of the housing 20. In addition, when the intake port 26 and the exhaust port 27 are provided only on the side surface 24 of the housing 20, the protrusion 37 may protrude laterally from the side surface 24.

[0028] When the air treatment device 10 is operating, the fan 33 rotates to draw air from the room 11 through the air intake 26, which is then processed through the first air treatment device 31 and the second air treatment device 32, and then exhausted into the room 11 through the exhaust 27.

[0029] In each air treatment device 31, 32, ultraviolet light in the ultraviolet region, for example UV-A wavelength components of 360 nm to 420 nm, or visible light is irradiated onto the photocatalytic filter 34 from the ultraviolet light source 35, and the photocatalyst in the photocatalytic filter 34 generates active enzymes and OH radicals. The generated active enzymes and OH radicals decompose the odorous components in the air passing through each air treatment device 31, 32, thereby deodorizing and eliminating odors, and suppressing the activity of bacteria and viruses floating in the air.

[0030] Furthermore, the air treatment device 10 is small in size, and the air intake 26 and the air exhaust 27 are disposed in close proximity to each other.

[0031] If the protrusion 37 does not protrude from the front portion 23 of the housing 20 between the exhaust port 27 and the intake port 26, the suction force drawing air from the room 11 into the intake port 26 will cause some of the treated air exhausted from the exhaust port 27 to easily flow into and be sucked into the intake port 26, possibly resulting in it being treated again.

[0032] Protruding portion 37 protrudes from front surface 23 of housing 20 between exhaust port 27 and intake port 26, thereby obstructing the flow of air from exhaust port 27 to intake port 26 and preventing treated air exhausted from exhaust port 27 from being drawn into intake port 26. This allows treated air exhausted from exhaust port 27 to be diffused into room 11, enabling the air in room 11 to be efficiently treated.

[0033] Furthermore, assuming that protrusion 37 is not present, the distance between exhaust port 27 and intake port 26 along only front portion 23, which is the surface of housing 20, is L1, and when protrusion 37 is present, the distance between exhaust port 27 and intake port 26, including front portion 23, which is the surface of housing 20, and the surface of protrusion 37, is L2, it is preferable that distance L2 is at least twice distance L1, and the presence of protrusion 37 in this relationship obstructs the flow of air from exhaust port 27 to intake port 26, and prevents treated air exhausted from exhaust port 27 from being drawn into intake port 26.

[0034] Furthermore, by protruding portion 37 vertically from front portion 23 of housing 20, it functions as a partition that obstructs the flow of air from exhaust port 27 to intake port 26, and prevents treated air exhausted from exhaust port 27 from being drawn into intake port 26.

[0035] Next, a second embodiment is shown in Figures 3 and 4. Note that the same components as those in the first embodiment are given the same reference numerals, and the description of the components and their functions and effects will be omitted.

[0036] The housing 20 is a small housing with one side measuring 100 mm or less when viewed from the front side of the protruding housing portion 22. The housing 20 is provided with an intake port 26 in a central region of the front portion 23 of the protruding housing portion 22, and an exhaust port 27 is provided in the side portion 24 surrounding the protruding housing portion 22. The protruding housing portion 22 of the housing 20 is rectangular when viewed from the front side, and exhaust ports 27 are provided in all of the side portions 24 on all four sides.

[0037] The protruding housing portion 22 of the housing 20 may be circular when viewed from the front side, and the intake port 26 provided in the central region of the front portion 23 of the protruding housing portion 22 and the exhaust port 27 provided in the side portion 24 around the intake port 26 may be arranged concentrically. Also, the exhaust port 27 may be provided in the central region of the front portion 23 of the protruding housing portion 22, and the intake port 26 may be provided in the side portion 24.

[0038] An air processing unit 30, a fan 33, and a power supply unit 39 are arranged inside the housing 20. A flow path 28 is formed inside the housing 20, through which air flows through the intake port 26, the air processing unit 30, the fan 33, and the exhaust port 27 in this order.

[0039] The air treatment unit 30 includes a photocatalytic filter 34 and an ultraviolet light source 35 that irradiates light onto the photocatalytic filter 34. The photocatalytic filter 34 is disposed inside the air intake 26, and air drawn in from the air intake 26 passes through the photocatalytic filter 34. The ultraviolet light source 35 is disposed on four sides of the protruding housing portion 22 of the housing 20, facing the periphery of the photocatalytic filter 34. The light from the ultraviolet light source 35 is also irradiated onto the central region of the photocatalytic filter 34.

[0040] The fan 33 is a centrifugal fan that draws in air from the intake port 26 side, which is one side in the axial direction, and discharges the air from the peripheral surface. For this reason, it is preferable to provide the air processing unit 30 upstream of the fan 33 in the flow path 28. By providing the air processing unit 30 upstream of the fan 33, the air processing unit 30 only needs to be located in one place, and the volume occupied by the air processing unit 30 in the housing 20 can be reduced, making it possible to miniaturize the housing 20. The air discharged from around the fan 33 flows to the exhaust port 27 through the flow path 28.

[0041] When the housing 20 is installed in the recess 13 of the wall surface 12, the power supply unit 39 is connected to a power line wired in the recess 13 to input AC power, and converts the AC power into a predetermined operating power to supply to the fan 33 and the ultraviolet light source 35. The power supply unit 39 may be disposed outside the housing 20.

[0042] In addition, the housing 20 has a protrusion 37 that blocks the flow of air from the exhaust port 27 to the intake port 26. The protrusion 37 protrudes in an annular shape from the periphery of the intake port 26 in the central region on the front surface 23 of the housing 20, and functions as a partition for the flow of air from the exhaust port 27 to the intake port 26. The protrusion 37 protrudes perpendicularly from the front surface 23 of the housing 20, that is, the angle between the side surface of the protrusion 37 and the front surface 23 of the housing 20 is 90 degrees. In this embodiment, the protrusion 37 can also act as a guide that guides air to the intake port 26.

[0043] If the distance between exhaust port 27 and intake port 26 along side portion 24 and front portion 23, which are the surfaces of housing 20, when protrusion 37 is assumed not to exist, is L1, and the distance including side portion 24 and front portion 23, which are the surfaces of housing 20 between exhaust port 27 and intake port 26, and the surface of protrusion 37, when protrusion 37 is present, is L2, distance L2 is longer than distance L1, and distance L2 is preferably at least twice distance L1. In other words, the protruding height of protrusion 37 from housing 20 is preferably a dimension such that distance L2 is at least twice distance L1.

[0044] The protrusion 37 may protrude laterally from the side surface portion 24 between the exhaust port 27 and the intake port 26 .

[0045] When the air treatment device 10 is operating, the rotation of the fan 33 draws air from the room 11 into the air intake 26 in the central area of ​​the front portion 23, processes it through the air treatment device 30, and then exhausts it into the room 11 through the air exhaust 27 in the side portion 24.

[0046] Furthermore, the air treatment device 10 is small in size, and the air intake 26 and the air exhaust 27 are disposed in close proximity to each other.

[0047] If the protrusion 37 does not protrude from the front portion 23 of the housing 20 between the exhaust port 27 and the intake port 26, the suction force drawing air from the room 11 into the intake port 26 will cause some of the treated air exhausted from the exhaust port 27 to easily flow into and be sucked into the intake port 26, possibly resulting in it being treated again.

[0048] Protruding portion 37 protrudes from front surface 23 of housing 20 between exhaust port 27 and intake port 26, thereby obstructing the flow of air from exhaust port 27 to intake port 26 and preventing treated air exhausted from exhaust port 27 from being drawn into intake port 26. This allows treated air exhausted from exhaust port 27 to be diffused into room 11, enabling the air in room 11 to be efficiently treated.

[0049] Furthermore, assuming that protrusion 37 is not present, the distance between exhaust port 27 and intake port 26 along only side portion 24 and front portion 23, which are the surfaces of housing 20, is L1, and when protrusion 37 is present, the distance between exhaust port 27 and intake port 26 including side portion 24 and front portion 23, which are the surfaces of housing 20, and the surface of protrusion 37 is L2, it is preferable that distance L2 is at least twice distance L1, and the presence of protrusion 37 in this relationship obstructs the flow of air from exhaust port 27 to intake port 26, and prevents treated air exhausted from exhaust port 27 from being drawn into intake port 26.

[0050] Furthermore, by protruding portion 37 vertically from front portion 23 of housing 20, it functions as a partition that obstructs the flow of air from exhaust port 27 to intake port 26, and prevents treated air exhausted from exhaust port 27 from being drawn into intake port 26.

[0051] 5(a) to 5(f) are schematic diagrams showing various examples of the protrusion 37 of the air treatment device 10 according to other embodiments. The same components as those in the second embodiment are designated by the same reference numerals, and the description of the components and the effects thereof will be omitted.

[0052] 5(a), in the air treatment device 10 of the second embodiment, a protrusion 37 that protrudes in an annular shape from the periphery of the intake port 26 in the central region on the front portion 23 of the housing 20 protrudes in an inclined manner toward the intake port 26. That is, the protrusion 37 is arranged so that the intake port 26 and at least a part of the protrusion 37 overlap when viewed from the front. This protrusion 37 narrows the opening width of the region facing the intake port 26, and linearizes the air so that the air is drawn into the intake port 26 from a direction perpendicular to the intake port 26, thereby preventing the processed air exhausted from the exhaust port 27 from being drawn into the intake port 26.

[0053] 5(b) to (d) show various examples of the air treatment device 10 of the second embodiment in which the protrusion 37 is provided on the exhaust port 27 side. Note that only some of the protrusions 37 are shown, and the rest are omitted.

[0054] In Figure 5 (b), a protrusion 37 protrudes vertically from the side of the exhaust port 27 on the side portion 24 of the housing 20 between the exhaust port 27 and the intake port 26. This protrusion 37 prevents the treated air exhausted from the exhaust port 27 from flowing sideways along the wall surface 12 and toward the intake port 26 on the front portion 23 of the housing 20.

[0055] 5(c), the protrusion 37 is protruded at an angle toward the exhaust port 27, in comparison with the structure of the protrusion 37 in FIG. 5(b). That is, the protrusion 37 is arranged so that the exhaust port 27 and at least a part of the protrusion 37 overlap in a side view. This protrusion 37 obstructs the flow of air from the exhaust port 27 toward the intake port 26, and the gap between the tip side of the protrusion 37 and the wall surface 12 becomes narrow, so that the flow speed of the passing air increases, and the treated air exhausted from the exhaust port 27 flows farther along the wall surface 12, and is prevented from flowing toward the intake port 26 of the front surface 23 of the housing 20.

[0056] 5(d), the protrusion 37 is protruded in a cross shape toward the exhaust port 27, in comparison with the structure of the protrusion 37 in FIG. 5(b) or (c). That is, the protrusion 37 is arranged so that the exhaust port 27 and at least a part of the protrusion 37 overlap in a side view. This protrusion 37 obstructs the flow of air from the exhaust port 27 toward the intake port 26, and the gap between the tip side of the protrusion 37 and the wall surface 12 is narrowed, so that the flow speed of the passing air increases, and the treated air exhausted from the exhaust port 27 flows farther along the wall surface 12, and is prevented from flowing toward the intake port 26 of the front surface 23 of the housing 20.

[0057] 5(e) and 5(f) show various examples of the air treatment device 10 of the second embodiment in which the protrusion 37 is provided on the inside of the exhaust port 27. Note that only a portion of the protrusion 37 is shown, and the rest is omitted. By providing the protrusion 37 on the inside of the exhaust port 27, it is possible to reduce the external size of the air treatment device 10.

[0058] 5(e), the protrusion 37 protrudes obliquely into the exhaust port 27 from the inner surface of the exhaust port 27 that is located on the intake port 26 side. That is, the protrusion 37 is arranged so that the exhaust port 27 and at least a part of the protrusion 37 overlap in a side view. This protrusion 37 narrows the gap between the tip side of the protrusion 37 and the exhaust port 27, so that the flow speed of the passing air increases, and the treated air exhausted from the exhaust port 27 flows farther along the wall surface 12, and is prevented from flowing to the intake port 26 of the front surface 23 of the housing 20.

[0059] 5(f), the protrusion 37 is protruded in a cross shape into the exhaust port 27, in comparison with the structure of the protrusion 37 in FIG. 5(e). That is, the protrusion 37 is arranged so that the exhaust port 27 and at least a part of the protrusion 37 overlap in a side view. This protrusion 37 narrows the gap between the tip side of the protrusion 37 and the inner surface of the exhaust port 27, so that the flow speed of the passing air is increased, and the treated air exhausted from the exhaust port 27 flows farther along the wall surface 12, and is suppressed from flowing into the intake port 26 of the front surface 23 of the housing 20.

[0060] The air treatment device 10 is not limited to being embedded in the wall surface 12, but may be disposed on the surface of the wall surface 12 or placed on a support surface such as a table.

[0061] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0062] 10 Air Treatment Equipment 20. Cabinet 26 Air Intake 27 Exhaust port 28 Flow Path 30 Air Processing Unit 33 Fans 37 Protrusion

Claims

1. a housing having an intake port for taking in outside air and an exhaust port for exhausting the intake air to the outside; an air treatment unit disposed within the housing; a fan disposed within the housing and configured to create an air flow path through the air intake, the air treatment unit, and the air exhaust; a protrusion provided on the housing and obstructing airflow from the exhaust port to the intake port; An air treatment device comprising:

2. the protrusion protrudes from a surface of the housing between the exhaust port and the intake port, The distance between the exhaust port and the intake port, including the surface of the housing and the surface of the protruding portion, is at least twice as long as the distance between the exhaust port and the intake port along the surface of the housing.

2. The air treatment system of claim 1.

3. The protrusion protrudes perpendicularly from the surface of the housing between the intake port and the exhaust port.

2. The air treatment system of claim 1.

4. The protrusion protrudes obliquely from the surface of the housing between the intake port and the exhaust port toward the intake port or the exhaust port.

2. The air treatment system of claim 1.

Images