JP2023132087A - Shading device and air treatment apparatus - Google Patents

Abstract

To provide a shading device by which it is possible to improve ventilation efficiency of air.SOLUTION: A shading device includes a shaft member and a plurality of shading members 35 disposed around the shank member. Each of the shading members 35 includes a first shading plate part 51 and a second shading plate part 52 which are disposed at a predetermined angle by interposing a top part 50 therebetween and have a plate shape. Sides 51a and 52a of one end sides of the first shading plate part 51 and the second shading plate part 52 in a direction along the top part 50 are respectively shorter than sides 51a and 52b of the other end sides. The sides 51a and 52a of the one end side of the first shading plate part 51 and the second shading plate part 51 are disposed on the shaft member side.SELECTED DRAWING: Figure 6

Description

Embodiments of the present invention relate to a shading device and an air treatment device.

BACKGROUND ART Conventionally, a light shielding device is known in which a plurality of plate-shaped light shielding members bent at a predetermined angle through the apex portion are arranged facing in the same direction to ensure air permeability and light shielding performance.

With this configuration, when the shading device is combined with a fan and air is blown through the shading device, the swirling air flow caused by the rotation of the fan may not match the opening direction between adjacent shading members. Passage efficiency decreases.

Utility Model Publication No. 6-43498

The problem to be solved by the present invention is to provide a shading device that can improve air ventilation efficiency, and an air processing device using this shading device.

The light shielding device of the embodiment includes a shaft member and a plurality of light shielding members arranged around the shaft member. The light shielding member has a plate-shaped first light shielding plate part and a second light shielding plate part provided at a predetermined angle through the apex part. The side on one end side of the first light shielding plate part and the second light shielding plate part in the direction along the apex part is shorter than the side on the other end side. A side of one end of the first light shielding plate part and the second light shielding plate part is arranged on the shaft member side.

According to the light shielding device of the embodiment, it can be expected that the air ventilation efficiency will be improved.

FIG. 1 is a schematic diagram of an air treatment device using a light shielding device according to an embodiment. It is a perspective view of the light shielding device same as the above. It is a sectional view of the light shielding device same as the above. It is an exploded perspective view of the light shielding device same as the above. It is an exploded perspective view of the light shielding unit of the light shielding device same as the above. It is a perspective view of the light shielding member of the light shielding device same as the above. It is a perspective view which shows the attachment structure of the one end side of the adjacent light-shielding member of the light-shielding device same as the above. It is a perspective view which shows the attachment structure of the other end side of the adjacent light-shielding member of the light-shielding device same as the above.

Hereinafter, one embodiment will be described with reference to the drawings.

Note that the air treatment device in the following embodiments performs any one of sterilization, sterilization, sterilization, sterilization, deodorization, and deodorization on the air flowing inside the air treatment device using a predetermined method. It is a device that performs In the following, the processing of the air processing device will be described as a sterilization process, but the sterilization process can be replaced with a sterilization process, a sterilization process, a sterilization process, a deodorization process, a deodorization process, and the like. Further, the predetermined method here includes light irradiation, photocatalyst, and the like. Light irradiation refers to irradiation with light having a wavelength in the UV-C region, UV-B region, UV-A region, visible light region, infrared region, or the like. Photocatalysts are activated enzymes and OH radicals that are generated by irradiating light (ultraviolet light or visible light) to a photocatalyst such as titanium oxide installed inside an air treatment device, which can reduce bacteria floating in the air. This refers to suppressing the activities of viruses and odor sources, as well as decomposing them into water and carbon dioxide.

FIG. 1 shows a schematic diagram of an air treatment device 10. The air processing device 10 includes a housing 11. The housing 11 is elongated in the vertical direction and is formed in a rectangular cylindrical shape (approximately rectangular parallelepiped shape), and inside the housing 11 is a processing space 12 that is a processing section that sterilizes the air passing through. is formed. Note that the housing 11 may be formed into a cylindrical housing. The processing space 12 is elongated in the vertical direction and is formed in a rectangular cylindrical rectangular housing (approximately rectangular parallelepiped shape). Note that the housing 11 and the processing space 12 may be formed into a cylindrical housing (approximately cylindrical shape).

A vent 13, which is a first vent that communicates the outside of the casing 11 and the lower end of the processing space 12, is formed at the lower end of the casing 11. A vent hole 14 is formed at the upper end of the casing 11 as a second vent that communicates the outside of the casing 11 with the upper end of the processing space 12 . In this embodiment, the vent 13 on the lower end side is an inlet, and the vent 14 on the upper end is an exhaust port. The ventilation port 13 is opened on the lower surface side of the housing 11, and a gap is formed between the vent hole 13 and the floor surface by, for example, a leg member, so that external air can be sucked in. The ventilation port 14 is opened on the upper surface side of the housing 11. Note that the ventilation port 13 on the suction port side is provided with a ventilation frame, for example, in the form of a lattice, and the ventilation port 14 on the exhaust port side is provided with a louver or the like for rectifying the direction of the exhausted air. You can leave it there. Further, the vents 13 and 14 may be opened on the side surface of the housing 11.

The inner surface of the housing 11 facing the processing space 12 is made of a metal plate or the like that is resistant to UV deterioration and reflects UV rays. Inside the housing 11, a light shielding device 17 having a fan 15 and a light shielding unit 16, which is a first light shielding part, is disposed on the lower end side of the processing space 12, which is the side of the ventilation port 13. A light shielding section 18, which is a second light shielding section, is provided on the upper end side of the processing space 12, which is the opening 14 side. An ultraviolet ray irradiation section 19 is disposed at. Note that the light shielding device 17 may include only the light shielding unit 16, and the fan 15 may be configured separately. Furthermore, the air processing device 10 may have a configuration that does not include the light shielding section 18.

Further, as shown in FIGS. 2 to 4, the light shielding device 17 is configured by combining a fan 15 and a light shielding unit 16.

As the fan 15, an axial fan is used. The fan 15 includes an impeller 21 that sends air in the axial direction, a motor 22 that rotates the impeller 21, and a frame 23 that supports the motor 22.

The frame 23 includes a mounting frame portion 24 and a plurality of leg portions 25 to which the motor 22 is attached to the mounting frame portion 24. The mounting frame portion 24 is provided with a cylindrical ventilation port portion 27 having a ventilation port 26 in which a portion of the impeller 21 is rotatably arranged.

The fan 15 has its rotation axis in the vertical direction, and the impeller 21 rotates clockwise in FIG. 12 to generate an air current that circulates air from the outside. Since the fan 15 is an axial fan, the rotation of the impeller 21 sends air in the axial direction and generates a swirling flow of air in the rotation direction of the impeller 21.

As shown in FIGS. 2 to 5, the light shielding unit 16 includes a light shielding member assembly 31, a light shielding frame 32 in which the light shielding member assembly 31 is arranged, and a light shielding frame 32 that covers the periphery of the light shielding member assembly 31. and a cover member 33 that holds the light shielding member assembly 31 between them.

The light shielding member assembly 31 includes a central shaft member 34 and a plurality of light shielding members 35 arranged radially around the shaft member 34.

The light shielding frame 32 has a flat plate shape and has a circular opening 36 formed in the center. The opening 36 is formed to have a larger diameter than the ventilation port 26 of the fan 15. The light shielding frame 32 is disposed on the mounting frame portion 24 of the fan 15, and in this disposed state, the tip side of the ventilation port portion 27 is inserted into the opening portion 36.

The cover member 33 includes a mounting plate portion 37 that is mounted on the light shielding frame 32 and a cylindrical cover frame portion 38 that stands up from the mounting plate portion 37. An opening 39 that opens in the axial direction is formed inside the cover frame 38, and the light shielding member assembly 31 is disposed within this opening 39. The cover frame portion 38 has a conical shape whose diameter decreases toward the distal end side away from the mounting plate portion 37, and the diameter on the mounting plate portion 37 side is approximately the same diameter as the opening 36 of the light shielding frame 32 or larger than the opening 36. It is formed with a large diameter. A presser portion 40 for pressing the upper surface of the peripheral portion of the light shielding member assembly 31 is provided on the tip side of the cover frame portion 38 . The holding portion 40 is configured to be substantially parallel to the mounting plate portion 37.

The configuration of the light shielding member 35 is shown in FIGS. 5 to 8. FIG. 6 shows a state in which two adjacent light shielding members 35 are separated, and FIGS. 7 and 8 show a state in which two adjacent light shielding members 35 are combined.

The light shielding member 35 is made of a material that has low reflectance or transmittance of ultraviolet rays and high resistance to ultraviolet rays, and is made of, for example, a galvanized steel plate. The light shielding member 35 includes a vertex portion 50 bent at a predetermined angle, a first light shielding plate portion 51 and a second plate-shaped light shielding plate portion 51 extending from the vertex portion 50 in a direction at a predetermined angle. The light shielding plate portion 52 is formed in a substantially dogleg shape in cross section. Note that the first light-shielding plate portion 51 and the second light-shielding plate portion 52 may be constructed as separate bodies and integrally combined by joining by welding or the like, or by a fitting structure.

The first light shielding plate portion 51 and the second light shielding plate portion 52 have a substantially rectangular shape having four sides, and the first light shielding plate portion 51 has a side on one end side in the longitudinal direction of the vertex portion 50. The second light shielding plate portion 52 has a trapezoidal shape in which a side 51a is shorter than a side 51b on the other end side, and a side 52a on one end side in the longitudinal direction of the vertex portion 50 is shorter than a side 52b on the other end side. It is formed into a trapezoidal shape. Sides 51a and 52a on one end side of the first light shielding plate part 51 and second light shielding plate part 52 are on the shaft member 34 side and are arranged on the center side of the light shielding member assembly 31, and sides 51b on the other end side, 52b is arranged on the peripheral side of the light shielding member assembly 31.

Further, as shown in FIGS. 6 and 7, the light shielding member 35 includes a first one-end mounting plate extending parallel to the first light shielding plate 51 from the side 51a on the one end side of the first light shielding plate 51. portion 54, a first groove portion 55 provided toward the apex portion 50 between the side 51a on one end side of the first light shielding plate portion 51, and the first one end side mounting plate portion 54; a second one-end mounting plate extending from the side 52a at one end of the second light-shielding plate portion 52 and bent at an angle of less than 90 degrees so as to face and overlap the first one-end mounting plate portion 54; A section 56 is provided. Further, the second one-end mounting plate portion 56 has a second groove portion 57 provided on the side opposite to the side facing the first one-end side mounting plate portion 54, and a second light shielding plate portion 52. A step portion 58, which is a second step portion on the one end side, is provided on the side opposite to the side 52a on the one end side.

A second one-end mounting plate portion 56 is disposed opposite to a portion of the first groove portion 55 . The second part of the light shielding member 35 that is assembled adjacent to the first groove part 55 that opens between the side 51a on one end side of the first light shielding plate part 51 and the second one end side mounting plate part 56 A part of the one end side mounting plate portion 56 can be inserted and arranged.

The stepped portion 58 is a side opposite to the side of the second one-end mounting plate portion 56 bent from the second light shielding plate portion 52, and is recessed on the side facing the first light shielding plate portion 52, and It is provided in a stepped shape with the opposite side protruding from the one light shielding plate part 52.

As shown in FIG. 7, of the two adjacent light shielding members 35, the first groove 55 of one (the right side in FIG. 7) of the light shielding member 35 is connected to the first groove 55 of the other (left side in FIG. 7) light shielding member 35. The second one-end side mounting plate portion 56 is engaged, and the second groove portion 57 of the other (left side in FIG. 7) light shielding member 35 is engaged with the second one end side mounting plate portion 56 (on the right side in FIG. 7). The light shielding plate portion 52 is engaged. The stepped portion 58 of the second one-end mounting plate portion 56 of the other (left side in FIG. 7) light shielding member 35 that is engaged with the first groove portion 55 of one (the right side in FIG. 7) light shielding member 35 is It is engaged with the first end-side mounting plate portion 54, which is the edge of the first groove portion 55, and is prevented from coming off. As a result, one end side of the two adjacent light shielding members 35 is fixed in a state in which movement in directions including the longitudinal direction of the apex portion 50 and the vertical and horizontal directions intersecting the longitudinal direction of the apex portion 50 is regulated. be done.

Further, as shown in FIGS. 6 and 8, the light shielding member 35 has a first light shielding member 35 extending from the other end side 51b of the first light shielding plate 51 in parallel with the first light shielding plate 51. Between the other end side mounting plate part 60, the other end side side 51b of the first light shielding plate part 51, and the first other end side mounting plate part 60, so as to be parallel to the other end side side 51b. The fourth groove 61 provided in An engaging portion 62 provided in the shape of a recess.

Further, the light shielding member 35 connects the first other end mounting plate 60 and the first light shielding plate 51 from a position away from the vertex 50 on the other end side 52 b of the second light shielding plate 52 . The second other end side mounting plate part 63 is bent at an angle of 90 degrees or more so as to face and overlap, and the second other end side mounting plate part 63 is on the opposite side from the apex part 50 side. The third groove portion 64 provided on the side opposite to the side facing the first light shielding plate portion 51 and the second groove portion 64 provided on the side opposite to the side facing the first light shielding plate portion 51, A protrusion 65 extending from between the end mounting plate 63 and the apex 50 and a second other end stepped portion provided on the tip side of the second other end mounting plate 63. A step portion 66 is provided.

The step portion 66 is a step on the tip end side of the second other end side mounting plate portion 63, in which the side facing the first light shielding plate portion 52 is depressed and the opposite side to the first light shielding plate portion 52 protrudes. It is set in shape.

As shown in FIG. 8, of the two adjacent light shielding members 35, the protrusion 65 of one (the right side in FIG. 8) of the light shielding member 35 is the third one of the other (left side in FIG. 8) light shielding member 35. At the same time, the stepped portion 66 of the other (left side in FIG. 8) light shielding member 35 is engaged with the fourth groove 61 of one (the right side in FIG. 8) of the light shielding member 35. As a result, the other ends of the two adjacent light shielding members 35 are restricted from moving in the longitudinal direction of the apex portion 50 and in the vertical and horizontal directions intersecting the longitudinal direction of the apex portion 50. Fixed.

In the light shielding member assembly 31, a plurality of light shielding members 35 are assembled in a line in the circumferential direction so that the apex portion 50 of the light shielding member 35 faces one side of the circumferential direction (clockwise direction in plan view) centering on the shaft member 34. It is being That is, in the light shielding member assembly 31, the light shielding member 35 has the apex portion 50 located on the most clockwise side or the most counterclockwise side in the circumferential direction around the shaft member 34 with respect to the light shielding plate portions 51 and 52. It is arranged so that.

In the assembled state of the light shielding member assembly 31, the adjacent light shielding members 35 are connected to the apex portion 50 or the light shielding plate portions 51, 52 of one adjacent light shielding member 35 and the other adjacent light shielding member 35 in plan view or top view. The light shielding plate portions 51 and 52 or the apex portion 50 of the member 35 are arranged so as to overlap.

Further, as shown in FIG. 5, the shaft member 34 has a pair of disc-shaped holding plates 68, and the pair of holding plates 68 sandwich the center part of the light shielding member assembly 31 from both sides in the axial direction. By fixing the holding plate 68 with a shaft such as a screw. The center side of the light shielding member assembly 31 is held.

Further, the light shielding member assembly 31 is held between the light shielding frame 32 and the cover member 33. At this time, the engaging portion 62 provided on the other end side 51b of the first light shielding plate portion 51 engages with the edge of the opening 36 of the light shielding frame 32, and the light shielding member 35 is positioned and held. Ru.

Further, as shown in FIG. 3, when the fan 15 and the light shielding unit 16 are combined, the first light shielding plate portion 51 of the light shielding member 35 faces the fan 15. Rotation of the impeller 21 of the fan 15 generates a swirling flow (clockwise direction in FIG. 3) in the air sent into the light shielding unit 16, so the rotation direction of the swirling flow of air from the fan 15 and the first light shielding The plate portion 51 is arranged in a positional relationship such that the inclination direction of the plate portion 51 is substantially the same direction.

Further, in FIG. 1, the light shielding part 18 is formed of a material such as metal that is not easily deteriorated by ultraviolet light. The light shielding part 18 may have any light shielding structure as long as it has ventilation properties for the air in the processing space 12 exhausted from the upper end side ventilation port 14 and a light shielding property for ultraviolet rays from passing through the ventilation port 14 to the outside. For example, the structure may be similar to that of the light shielding unit 16.

Further, the ultraviolet irradiation unit 19 is disposed below the light shielding unit 18 and irradiates ultraviolet rays into the processing space 12 below. The ultraviolet irradiation section 19 uses an ultraviolet light source such as an ultraviolet light emitting element or an ultraviolet lamp. When an ultraviolet light-emitting element is used, an ultraviolet LED that emits light in the ultraviolet wavelength range (UV-C) with a peak wavelength of 300 nm or less, preferably in the ultraviolet wavelength range of 260 to 280 nm (hereinafter referred to as ultraviolet light). etc. are used. Furthermore, an irradiation section that irradiates UV-A light or an irradiation section that irradiates visible light may be provided, either integrally or separately from the ultraviolet irradiation section 19.

Then, the operation of the air treatment device 10 will be explained.

As shown in FIG. 1, when the fan 15 rotates, it sucks in outside air from the vent 13 on the lower end side, sends the air to the lower end side of the processing space 12 through the shading unit 16, and also blocks light on the upper end side of the processing space 12. Air from the outside circulates in the processing space 12 by exhausting the air from the upper end side vent 14 through the section 18 to the outside.

As shown in FIG. 3, in the light shielding unit 16 in which a plurality of light shielding members 35 are arranged in parallel in the circumferential direction around the shaft member 34, air sent from the fan 15 is processed through the gaps between the plurality of light shielding members 35. It is sent into space 12. A swirling flow is generated in the air sent into the light shielding unit 16 by the rotation of the fan 15, and the swirling direction of the swirling flow of air from the fan 15 and the first light shielding plate portion of each light shielding member 35 facing the fan 15 are Since the positional relationship is such that the inclination direction of 51 is substantially the same direction, air can be efficiently sent from the fan 15 into the light shielding unit 16, and the configuration is such that the swirling flow of the air that has passed through the light shielding unit 16 is not obstructed. Become. Furthermore, since the covering member 33 covers the periphery of the plurality of light shielding members 35, it is possible to prevent the air sent from the fan 15 from flowing out around (to the sides) of the plurality of light shielding members 35. Along with this, it can be expected that the flow rate of air sent into the processing space 12 through the light shielding unit 16 will increase.

In the light-shielding unit 16, the second light-shielding plate portion 52 of the light-shielding member 35 faces the processing space 12, and the air sent from the fan 15 is discharged in the direction of the inclination of the second light-shielding plate portion 52. be done.

A plurality of light shielding members 35 are arranged in parallel in the circumferential direction around the shaft member 34, and the flow of air discharged along the inclination of the second light shielding plate portion 52 of each light shielding member 35 is arranged in a plane around the shaft member 34. Since the air flows in a counterclockwise direction in a plan view, a swirling flow of air in a counterclockwise direction in a plan view is generated within the processing space 12, as shown in FIG. This swirling flow of air is generated from the lower end side of the processing space 12 toward the upper end side.

Here, if the light shielding part 18 also has a structure that has the same function of generating a swirling flow as the light shielding unit 16, and is configured to generate a swirling flow in the same direction as the direction of the swirling flow by the light shielding part 18, , a swirling flow of air can be generated in the entire area from the upper end side to the lower end side of the processing space 12.

The ultraviolet irradiation unit 19 irradiates ultraviolet rays downward into the processing space 12, and irradiates the air that has become a swirling flow with the ultraviolet rays. By irradiating the swirling air with ultraviolet rays, the entire air in the processing space 12 can be irradiated with ultraviolet rays, and the irradiation time of the ultraviolet rays on the air can be lengthened, thereby improving the sterilization effect. The air that has been sterilized by being irradiated with ultraviolet rays is exhausted to the outside of the casing 11 through the light shielding part 18 and from the vent 14 on the upper end side.

The light shielding unit 16 disposed on the vent 13 side of the housing 11 blocks ultraviolet rays directed toward the vent 13, thereby preventing the ultraviolet rays from leaking from the vent 13 to the outside of the housing 11. In addition, the light blocking portion 18 provided on the side of the vent 14 of the housing 11 blocks ultraviolet rays directed toward the side of the vent 14, thereby preventing the ultraviolet rays from leaking to the outside of the housing 11 from the vent 14.

According to the light shielding device 17 of the embodiment, the light shielding plate parts 51 and 52 are bent at a predetermined angle through the vertex part 50, and the light shielding plate parts 51 and 52 are bent at a predetermined angle through the vertex part 50. A state in which the sides 51a, 52a on one end side are shorter than the sides 51b, 52b on the other end side are used, and the sides 51a, 52a on the one end side of the light shielding plate parts 51, 52 are arranged on the shaft member 34 side. Since a plurality of light shielding members 35 are arranged around the shaft member 34, the swirling air flow caused by the rotation of the fan 15 is not obstructed, and air ventilation efficiency can be improved.

Further, on one end side of the light shielding member 35, the second one end side mounting plate portion 56 of the other light shielding member 35 is engaged with the first groove portion 55 of one light shielding member 35 among the adjacent light shielding members 35. At the same time, since the second light shielding plate portion 52 of one light shielding member 35 is engaged with the second groove portion 57 of the other light shielding member 35, positional shift on one end side of the adjacent light shielding member 35 is restricted. It can be fixed by

The second one-end mounting plate part 56 is bent at an angle of less than 90 degrees from the one-end side 52a of the second light shielding plate part 52 so as to face and overlap the first one-end mounting plate part 54. Therefore, the second one-end mounting plate portion 56 can be engaged with the first groove portion 55.

Further, on the other end side of the light shielding member 35, the projection 65 of one of the two adjacent light shielding members 35 is engaged with the third groove 64 of the other light shielding member 35. , it is possible to restrict and fix positional displacement of the other end sides of two adjacent light shielding members 35.
Since the second other end attachment plate portion 63 provided with the third groove portion 64 is provided by being bent from the second light shielding plate portion 52, a light shielding effect in the outward direction can be ensured.

Further, since the stepped portion 66 of the other light shielding member 35 is engaged with the fourth groove portion 61 of one light shielding member 35, the positional shift of the other end side of the two adjacent light shielding members 35 is restricted and fixed. can.

Further, the engaging portion 62 provided on the other end side 51b of the first light shielding plate portion 51 engages with the edge of the opening 36 of the light shielding frame 32, and positions the light shielding member 35 in the light shielding frame 32. Can be fixed.

Further, since the covering member 33 covers the periphery of the plurality of light shielding members 35, air can be prevented from flowing out from around the plurality of light shielding members 35, and the light shielding effect on the periphery of the plurality of light shielding members 35 can be ensured.

In addition, in the air treatment device 10, a swirling flow is generated in the air from the outside that is circulated in the housing 11 by the light shielding device 17, and the air that has become this swirling flow can be irradiated with ultraviolet rays. Ultraviolet rays can be irradiated evenly over the entire area, improving sterilization efficiency.

Moreover, since the air flow inside the casing 11 becomes a swirling flow, the air flow inside the casing 11 becomes smoother, the amount of air sterilized per unit time increases, and the sterilization efficiency is improved. can.

Note that the ventilation port 13 on the lower end side of the housing 11 remains an intake port, the ventilation port 14 on the upper end side remains an exhaust port, the light shielding device 17 is provided on the upper end side of the ventilation port 14 side, and the light shielding part 18 is provided on the lower end side. It may be arranged on the ventilation port 13 side.

In this case, the light shielding unit 16 of the light shielding device 17 may be arranged downstream of the fan 15 in the ventilation path. The light shielding unit 16 may be placed at a position where the ventilation hole 14 is visible from the outside, since it has a preferable design.

Further, the ventilation port 13 on the lower end side of the housing 11 may be an exhaust port, and the ventilation port 14 on the upper end side may be an intake port. In this case, the fan 15 may be rotated in the opposite direction, or the light blocking device 17 may be provided on the upper end side of the vent 14 and the light blocking portion 18 may be provided on the vent 13 side.

Furthermore, although it is preferable that the fan 15 be disposed outside between the light shielding unit 16 and the light shielding section 18, it may be disposed between the light shielding unit 16 and the light shielding section 18.

Further, the processing space 12 of the housing 11 may be formed into a cylindrical shape, and the light shielding device 17 and the light shielding portion 18 disposed within the housing 11 may be formed into a cylindrical shape. In this case, the swirling flow of air can be generated efficiently.

Although several embodiments of the invention have been described, these embodiments are presented by way of example 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 changes can be made without departing from the gist of the invention. These embodiments and their modifications are included within the scope and gist of the invention, as well as within the scope of the invention described in the claims and its equivalents.

10 air treatment device 11 housing 13, 14 vent 15 fan 17 light shielding device 19 ultraviolet irradiation unit 32 light shielding frame 33 cover member 34 shaft member 35 light shielding member 36 opening 50 vertex 51 first light shielding plate 51a one end side Side 51b Side on the other end side 52 Second light shielding plate part 52a Side on one end side 52b Side on the other end side 54 First one end side mounting plate part 55 First groove part 56 Second one end side mounting plate part 57 2 groove part 60 first other end side mounting plate part 61 fourth groove part 62 engaging part 63 second other end side mounting plate part 64 third groove part 65 protrusion part 66 step part

Claims (9)

A shaft member;
a plurality of light shielding members arranged around the shaft member;
Equipped with
The light shielding member is
It has a plate-shaped first light shielding plate part and a second light shielding plate part provided at a predetermined angle through the apex part,
A side on one end side of the first light shielding plate portion and the second light shielding plate portion in a direction along the vertex portion is shorter than a side on the other end side,
A light shielding device, wherein a side of one end of the first light shielding plate portion and the second light shielding plate portion is disposed on the shaft member side. The light shielding member is
a first one-end mounting plate portion extending from one end side of the first light-shielding plate portion;
a first groove portion provided toward the apex portion between a side on one end side of the first light shielding plate portion and the first one end side mounting plate portion;
a second one-end mounting plate portion bent from one end side of the second light-shielding plate portion so as to overlap the first one-end mounting plate portion;
a second groove provided on a side opposite to a side of the second one-end mounting plate facing the first one-end mounting plate;
The second one end side mounting plate portion of the other adjacent light shielding member is engaged with the first groove portion of the other adjacent light shielding member, and the second one end side mounting plate portion of the other adjacent light shielding member is engaged with the first groove portion of the other adjacent light shielding member. The light shielding device according to claim 1, wherein the second light shielding plate portion of one of the adjacent light shielding members is engaged with the groove portion. The light shielding member is
a second other-end mounting plate portion bent from the other-end side of the second light-shielding plate portion;
a third groove provided on the side opposite to the apex side of the second other end side mounting plate;
a protrusion extending from between the second other-end side mounting plate part and the apex part on the other-end side of the second light-shielding plate part;
The light shielding device according to claim 1 or 2, wherein the protrusion of one of the adjacent light shielding members is engaged with the third groove of the other adjacent light shielding member. The light shielding member is
a first other-end mounting plate extending from the other-end side of the first light-shielding plate;
a fourth groove portion provided toward the apex portion between the other end side of the first light shielding plate portion and the first other end side mounting plate portion;
a step portion provided on the tip side of the second other end side attachment plate portion of the second light shielding plate portion;
The light shielding device according to any one of claims 1 to 3, wherein the step portion of the other adjacent light shielding member is engaged with the fourth groove of one of the adjacent light shielding members. Equipped with a light-shielding frame with a circular opening,
The light shielding member is
5. The light shielding device according to any one of claims 1 to 4, further comprising an engaging portion that engages with an edge of the opening of the light shielding frame on a side of the other end of the first light shielding plate. Shading device. The light shielding device according to any one of claims 1 to 5, further comprising a cylindrical cover member that covers the periphery of a plurality of light shielding members attached around the shaft member. The light shielding device according to any one of claims 1 to 6, further comprising a fan that blows air through the light shielding member. a casing having a vent;
an ultraviolet irradiation unit disposed within the housing;
a fan disposed within the housing for blowing air;
The light shielding device according to any one of claims 1 to 6, which is disposed within the housing;
An air treatment device comprising: The air processing device according to claim 8, wherein the light shielding device is disposed downstream of the fan in a ventilation path.

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