Air purifying device and opening device equipped with air purifying device

Abstract

To improve sterilization ability in the air or inactivation ability of virus.SOLUTION: An air cleaning device includes an ultraviolet light source 2, a flow channel member 4 forming an air distribution channel R, and blowing means 5 for distributing the air into the distribution channel R by the flow channel member 4. The flow channel member 4 is configured to permeate ultraviolet light and develop the distribution channel R along a plane or a curved surface. When the air distribution channel R is developed along the plane or the curved surface, the ultraviolet light from the ultraviolet light source 2 can be easily emitted to a plurality of parts or a wide range, and sterilization ability or inactivation ability of virus for the air passing through the distribution channel R is improved.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an air purifying device and Equipped with an air purifier This relates to an opening device. [Background technology]

[0002] Ultraviolet light has been used for sterilization and virus inactivation. For example, conventional air purifiers have an ultraviolet lamp installed in a cylindrical housing, and sterilize the air drawn into the housing by a fan by irradiating it with ultraviolet light (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-57466 Summary of the Invention [Problem to be solved by the invention]

[0004] In order to effectively remove bacteria and viruses in the air by irradiating it with ultraviolet light, it is preferable that the amount of ultraviolet light irradiated onto the air be as large as possible. However, the conventional air purifiers described above do not have a structure for sufficiently irradiating ultraviolet light, making it difficult to sufficiently improve the ability to remove bacteria and viruses from the air.

[0005] An object of the present invention is to solve the problems of the prior art and to improve the ability to sterilize or inactivate viruses in the air. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention provides an air purifying device, an ultraviolet light source; a flow path member that forms an air flow path; a blower for circulating air through the flow path defined by the flow path member, The flow path member transmits ultraviolet light and develops the flow path along a flat or curved surface. death, the flow path has a plurality of linear portions, the plurality of linear portions are arranged side by side in a stacked state, a plurality of the flow path members; A plurality of the flow path members are arranged around the ultraviolet light source; A plurality of the flow path members are connected so that air passes through all of the flow path members. It is characterized by: The present invention is also characterized in that an opening device includes the air cleaning device described above. [Effects of the Invention]

[0007] With the above-described configuration, the present invention can improve the sterilization ability or virus inactivation ability in the air. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a cross-sectional front view showing a schematic configuration of an air purifying device according to a first embodiment. [Figure 2] FIG. 2 is an explanatory diagram schematically illustrating air flow paths formed within the housing. [Figure 3] FIG. 6 is a cross-sectional front view showing a schematic configuration of an air purifying device according to a second embodiment. [Figure 4] 10 is an explanatory diagram schematically illustrating the direction of irradiation of ultraviolet light with respect to an air flow path formed by a flow path member. FIG. [Figure 5] FIG. 10 is a cross-sectional front view showing a schematic configuration of an air purifying device according to a third embodiment. [Figure 6] 6 is a left side view of the flow path member and the ultraviolet light source of FIG. 5. [Figure 7] FIG. 10 is a cross-sectional front view showing a schematic configuration of an air purifying device according to a fourth embodiment. [Figure 8] FIG. 10 is a cross-sectional front view showing a schematic configuration of an air purifying device according to a fifth embodiment. [Figure 9]FIG. 10 is a cross-sectional front view showing a schematic configuration of an air purifying device according to a sixth embodiment. [Figure 10] FIG. 11 is a cross-sectional front view showing a schematic configuration of an air purifying device according to a seventh embodiment. [Figure 11] FIG. 13 is a cross-sectional front view showing a schematic configuration of an air purifying device according to an eighth embodiment. [Figure 12] FIG. 13 is a plan view showing a schematic configuration of an air purification system according to a ninth embodiment. [Figure 13] FIG. 13 is a plan view showing an example of control of the air purification system of FIG. [Figure 14] FIG. 23 is a front view showing the interior of the indoor side of the opening device according to the tenth embodiment. [Figure 15] FIG. 15 is a vertical cross-sectional view of the opening device taken along line AA in FIG. [Figure 16] 15 is a cross-sectional view of the opening device taken along line BB in FIG. 14. [Figure 17] FIG. 23 is a front view showing the interior of the indoor side of the opening device according to the eleventh embodiment. [Figure 18] 18 is a vertical cross-sectional view of the opening device taken along line CC in FIG. 17. FIG. [Figure 19] FIG. 18 is a cross-sectional view of the opening device taken along line DD in FIG. 17. [Figure 20] FIG. 10 is a partial cross-sectional view taken along the horizontal direction showing an example in which an air purifying device is stored and installed inside the cover member of the left vertical frame in an opening device. DETAILED DESCRIPTION OF THE INVENTION

[0009] [First embodiment] A first embodiment of an air purifying device according to the present invention will be described with reference to the drawings. Note that the embodiments described below are merely examples of the present invention, and the present invention is not limited to the embodiments described below, and can be modified as appropriate within the scope of the technical concept of the present invention. FIG. 1 is a cross-sectional front view showing a schematic configuration of an air purifying device 1 according to a first embodiment of the present invention. In the first embodiment, for convenience, the left-right direction in Fig. 1 is the left-right direction of the air purifying device 1, the up-down direction in Fig. 1 is the up-down direction of the air purifying device 1, and the direction perpendicular to the plane of the paper (depth) in Fig. 1 is the front-to-rear direction of the air purifying device 1 (the front side of the plane of the paper is the front) in the following description. However, the orientation of the air purifying device 1 during use can be changed as desired. Furthermore, the dimensions of each part of the air purifying device 1 in the left-right, up-down, and front-to-rear directions or their ratios can be changed as appropriate.

[0010] As shown in the figure, the air purifying device 1 includes an ultraviolet light source 2, a housing 3 that stores the ultraviolet light source 2 and shields it so that ultraviolet light does not leak to the outside, a flow path member 4 that forms an air circulation path R (see Figure 2) inside the housing 3, and an air supply fan 5 as a blowing means that circulates air within the circulation path R defined by the flow path member 4.

[0011] [UV light source] The ultraviolet light source 2 emits ultraviolet light in a wavelength range of 250 to 300 nm, which includes so-called UVC, which is effective in sterilizing and inactivating viruses. Here, the ultraviolet light source 2 is exemplified by a plurality of LEDs that output ultraviolet light and are arranged in a line on a substrate. In this ultraviolet light source 2, the optical axes (central axes of the directivity angles) of all of the multiple LEDs are directed in the same direction (upward in FIG. 1). The white arrow in FIG. 1 indicates the optical axis direction of the ultraviolet light U that is mainly emitted from the ultraviolet light source 2. The ultraviolet light source 2 is not limited to one having an LED, and may be a type that irradiates ultraviolet light to the surroundings, such as an ultraviolet lamp. When an ultraviolet lamp is used, it is preferable to install it in the same position as the ultraviolet light source 2, with the central axis of the ultraviolet lamp facing left and right (horizontally). In this embodiment, the ultraviolet light source 2 is disposed on the bottom surface inside the housing 3, but if the inner surface of the housing 3 (described later) is made of a material that reflects ultraviolet light, the bottom surface, for example, can be used as a reflection surface for the ultraviolet light U emitted from the ultraviolet light source 2. In this case, the ultraviolet light U is reflected upward by the bottom surface, so the arrangement of the ultraviolet light source 2 is not limited to the bottom surface.

[0012] [Case] The shape of the housing 3 is not particularly limited, but here a rectangular parallelepiped shape is shown as an example. The housing 3 is a box that is hollow inside and airtight. As shown in FIG. 1, the housing 3 is rectangular when viewed from the front, with its long sides aligned in the left-right direction and its short sides aligned in the up-down direction. There are also no particular restrictions on the width of the housing 3 in the front-to-rear direction (the direction perpendicular to the plane of the paper in FIG. 1), and this can be set appropriately depending on the environment in which the air purifying device 1 is installed. For example, if the air purifying device 1 is installed in an area such as a gap, the width in the front-to-rear direction may be made thinner.

[0013] All inner surfaces of the housing 3 on the top, bottom, left, right, front and back sides are made of a material that does not transmit at least ultraviolet light, and more preferably, at least the inner surfaces are made of a material that reflects ultraviolet light well. An inlet 31 is formed at the lower end of the right wall 33 of the housing 3 to draw air outside the housing 3 into the interior. In addition, an outlet 32 is formed at the upper end of the right wall 33 of the housing 3 to discharge air outside the housing 3 to the outside. The inlet 31 and the outlet 32 are made up of numerous through-holes and slits. In addition, slits or a shutter structure that penetrates obliquely relative to the surface of the housing 3 may be provided to prevent ultraviolet rays from leaking out from inside. The arrangement of the inlet 31 and the outlet 32 can be changed as appropriate depending on the shape and structure of the internal flow path R.

[0014] [Flow path components] FIG. 2 is an explanatory diagram schematically showing an air flow path R formed inside the housing 3. As shown in FIG. Inside the housing 3, an air flow path R is formed by the flow path member 4 along a plane P. The flow path member 4 has three horizontal (parallel in the front-rear and left-right directions) flat partition walls 41-43. These partition walls 41-43 form four straight linear portions S1-S4, all parallel to the left-right direction, stacked one above the other inside the housing 3, which are connected to form a serpentine air flow path R. Note that the linear portion in this application refers to a space through which air drawn into the housing 3 flows, and in this embodiment is a rectangular parallelepiped space that is continuous in the left-right direction.

[0015] Specifically, the four linear portions S1 to S4 are arranged by three plate-like partition walls 41 to 43 such that the linear portions S1 to S4 are aligned in the vertical direction (the direction intersecting the linear portions S1 to S4). The right end of the first linear portion S1 from the bottom is connected to the inlet 31, which is the starting end of the flow path R. On the other hand, the first partition wall 41 from the bottom extends leftward from the right side wall 33 of the housing 3 to near the front of the left side wall 34. Therefore, the left end of the first linear portion S1 is connected to the left end of the second linear portion S2 from the bottom, which is located above it.

[0016] Furthermore, the second-lowest partition wall 42 extends rightward from the left sidewall 34 of the housing 3 to the vicinity of the right sidewall 33. Therefore, the right end of the second-lowest linear portion S2 is connected to the right end of the third-lowest linear portion S3 located above it. Furthermore, the third partition wall 43 from the bottom (top) extends leftward from the right side wall 33 of the housing 3 to near the front of the left side wall 34. Therefore, the left end of the third linear portion S3 from the bottom is connected to the left end of the fourth linear portion S4 from the bottom (top) located above it. The right end of the uppermost linear portion S4 is connected to the outlet 32, which is the end of the flow path R.

[0017] An air supply fan 5 is provided at the starting end of the flow path R inside the housing 3, sending air toward the downstream side of the flow path R. As a result, air is taken into the housing 3 from the inlet 31, circulates along the flow path R that meanders through the four linear portions S1 to S4, and is discharged to the outside of the housing 3 from the outlet 32. The air supply fan 5 may be provided at the end of the flow path R indicated by the two-dot chain line in Fig. 1. In this case, too, it is possible to promote the flow of air from the inlet 31 through the flow path R to the outlet 32. Furthermore, when the air supply fan 5 is provided at the end of the flow path R, the rotation direction of the fan can be reversed periodically or at any interval to expel any remaining foreign matter, such as dust, that has been drawn into the housing 3. Moreover, the air supply fans 5 may be provided at both the start end and the end end of the circulation path R.

[0018] In the housing 3, the ultraviolet light source 2 is arranged so as to emit ultraviolet light U upward from the bottom surface inside the housing 3. Each of the partition walls 41 to 43 is made of a material (such as fluororesin, quartz glass, or borosilicate glass) that transmits ultraviolet light well. The partition walls 41 to 43 are arranged to intersect with the optical axis of the ultraviolet light source 2. Therefore, as shown in FIG. 2 , ultraviolet light U from the ultraviolet light source 2 is irradiated along a plane P on which the flow path R is developed, passing through each of the partition walls 41 to 43 that constitute the flow path member 4. Therefore, ultraviolet light can be irradiated so as to penetrate all of the linear portions S1 to S4 of the flow path R. Note that the plane P in this application refers to a plane that defines the layout of the flow path R, and refers to the plane on which the flow path R is developed. That is, the flow path R is arranged on a single plane P so as not to deviate from the plane. Note that the plane on which the flow path R is developed is not limited to a flat surface, and may be a curved surface, as will be described in other embodiments. As a result, the air flowing through the flow path R inside the housing 3 is irradiated with ultraviolet rays every time it passes through each of the linear portions S1 to S4, thereby effectively sterilizing the air and inactivating viruses.

[0019] The distribution route R is not limited to the above shape. The flow path R does not have to have a shape that extends in only one direction, but it is preferable that it is developed along the plane P, bent or curved at each part, and has parts that face in different directions.

[0020] [Technical effect of the first embodiment] As described above, in the air purifying device 1, the flow path member 4 extends along the flow path R on the plane P. Therefore, while passing through the flow path R formed in a stacked state from the inlet 31 to the outlet 32, the ultraviolet light U can be irradiated onto the entire flow path R or multiple locations thereof, and by effectively irradiating the flowing air with the ultraviolet light U, it is possible to improve the sterilizing ability or virus inactivation ability in the air.

[0021] Furthermore, by irradiating ultraviolet light U along plane P so that the ultraviolet light source 2 passes through each partition 41 to 43 of the flow path member 4, the ultraviolet light U traveling in a certain direction passes through multiple points within the circulation path R, allowing the ultraviolet light U to be effectively irradiated onto the circulating air, thereby improving the sterilization ability or virus inactivation ability in the air.

[0022] In particular, in the air purifying device 1, the circulation path R has a plurality of linear portions S1 to S4, and these linear portions S1 to S4 are arranged in a line in the vertical direction. This makes it possible to provide an air circulation path R inside the air purifying device 1 that is longer than the size of the device. Furthermore, the flow path R having the above-described shape allows ultraviolet light U traveling in a fixed direction to be irradiated so as to penetrate multiple linear portions S1 to S4 at once. Therefore, the flowing air can be irradiated with ultraviolet light U efficiently and effectively, making it possible to further improve the sterilizing ability and virus inactivation ability in the air. Note that, although the flow path member 4 has three partition walls in this embodiment, it may have more than three. If the number of partition walls is increased, the number of linear portions increases, the flow path R is extended in the vertical direction, and the number of times ultraviolet light is irradiated increases accordingly.

[0023] Furthermore, the air purifying device 1 includes a housing 3 that houses the flow path member 4 and the ultraviolet light source 2 and blocks ultraviolet light, so that it is possible to effectively suppress the influence of ultraviolet light on the outside of the housing 3. Furthermore, the entire inner surface of the housing 3 is a reflective surface that reflects ultraviolet light, thereby effectively blocking ultraviolet light. Furthermore, the ultraviolet light U emitted from the ultraviolet light source 2 hits the upper surface, is reflected, and is repeatedly refracted, thereby being reflected by the inner surface of the housing 3, and the reflected light of the ultraviolet light U is irradiated many times onto the air circulating within the distribution channel R, allowing the ultraviolet light U to be irradiated more efficiently, thereby further improving the sterilization ability or virus inactivation ability in the air.

[0024] [Second embodiment] A second embodiment of the air purifying device according to the present invention will be described with reference to the drawings. Figure 3 is a cross-sectional front view showing the schematic configuration of an air purifying device 1A according to the second embodiment of the present invention. In the second embodiment, for convenience, the left-right direction in Fig. 3 is the left-right direction of the air purifying device 1A, the up-down direction in Fig. 3 is the up-down direction of the air purifying device 1A, and the direction perpendicular to the plane of the paper in Fig. 3 is the front-to-rear direction of the air purifying device 1A (the front side of the paper is the front). However, the orientation of the air purifying device 1A during use can be changed as desired. Furthermore, the dimensions of each part of the air purifying device 1A in the left-right, up-down, and front-to-rear directions or their ratios can be changed as appropriate.

[0025] Regarding the air purifying device 1A of the second embodiment, the differences from the air purifying device 1 will be mainly explained, and the same symbols will be used for the components that are substantially or functionally identical to the air purifying device 1 described above, and duplicate explanations will be omitted.

[0026] This air purifying device 1A differs from the air purifying device 1 in that it has an ultraviolet light source 2A that is different from the ultraviolet light source 2, and in that the flow path member 4A is a tubular body that follows the flow path R1 (see FIG. 4).

[0027] The flow path member 4A is a tubular body made of a material that transmits the ultraviolet light U (the same material as the partition wall 41), and the shape of the flow path member 4A directly becomes the shape of the flow path R1. Note that the flow path member 4A may be formed from a tube made of a material that transmits the ultraviolet light U. The flow path member 4A has three linear portions S11 to S13 that are aligned in a stacked state and that are oriented in the left-right direction, forming a meandering air flow path R1 that extends along a plane P1 (see FIG. 4).

[0028] The right end of the first linear portion S11 from the top is connected to the inlet 31 formed in the upper part of the right side wall 33 of the housing 3. The left end of the linear portion S11 is curved downward and connected to the left end of the second linear portion S12 from the top. The right end of the second linear portion S12 from the top is curved downward and connected to the right end of the third linear portion S13 from the top (the bottom). The left end of the third linear portion S13 from the top is connected to an outlet 32 formed in the lower part of the left wall 34 of the housing 3.

[0029] The flow path member 4A is structured to allow air to circulate only inside itself, and therefore does not allow air taken in from outside the housing 3 to circulate in the space inside the housing 3 but outside the flow path member 4A.

[0030] An air chamber is provided between the inlet 31 of the housing 3 and the right end of the linear portion S11, and an air supply fan 5 is provided inside the air chamber to circulate air toward the outlet 32 side (downstream in the flow direction). An air chamber is also provided between the exhaust port 32 of the housing 3 and the left end of the linear portion S13. As shown by the two-dot chain line in Fig. 3, instead of the air chamber on the inlet 31 side or together with the air chamber on the inlet 31 side, an air supply fan 5 that circulates air toward the exhaust port 32 side (downstream side in the air flow direction) may be provided in the air chamber on the exhaust port 32 side.

[0031] The ultraviolet light source 2A is a cylindrical ultraviolet lamp that emits ultraviolet light U radially in a 360° rotation around its central axis. The ultraviolet light source 2A is arranged within the housing 3, behind the flow path member 4A (toward the rear of the paper in Figure 3), between the flow path member 4A and the rear wall of the housing 3, with its central axis oriented left-right and parallel to the flow path member 4A.

[0032] An ultraviolet lamp generally refers to a device in which a rare gas is sealed inside a tubular body made of an ultraviolet-transmitting material and ultraviolet light is irradiated to the surrounding area by applying a high voltage to an internal electrode to cause discharge. However, in this specification, the term "ultraviolet lamp" also refers to an ultraviolet lamp-type light-emitting device in which a tubular body made of an ultraviolet-transmitting material is equipped with multiple ultraviolet LEDs inside so as to radiate ultraviolet light in multiple directions around its central axis.

[0033] FIG. 4 is an explanatory diagram showing a schematic view of the direction of irradiation of ultraviolet light with respect to the air flow path formed by the flow path member 4A. As described above, the flow path member 4A develops the flow path R1 along the plane P1. The ultraviolet light source 2A is disposed opposite the plane P1 and emits the ultraviolet light U radially around an axis along the left-right direction immediately behind the plane P1, so that the ultraviolet light U can be effectively irradiated onto each of the three linear portions S11 to S13 arranged vertically.

[0034] In the case of the air purifying device 1A described above, the flow path member 4A also develops the flow path R1 along the plane P1. Therefore, while passing through the flow path R1, which is not the shortest path connecting the inlet 31 to the outlet 32 but has a shape that is folded back multiple times, the ultraviolet light U can be irradiated onto the entire flow path R1 or multiple locations thereof, thereby improving the ability to sterilize or inactivate viruses in the air.

[0035] Furthermore, since the flow path member 4A extends the circulation path R1 along the plane P1, even if the ultraviolet light source 2A emits ultraviolet light U radially, by positioning the ultraviolet light source 2A opposite the plane P1, it is possible to effectively irradiate the ultraviolet light U over a wide area onto the circulation path R1. Note that the flow path member 4A may be made of a material that does not transmit ultraviolet light U well in part. For example, the curved portions located between the linear portions S11 to S13 of the flow path member 4A may be made of a material that is easy to form or a deformable material such as rubber. However, the smaller the proportion of material that does not transmit ultraviolet light U well, the better.

[0036] The distribution route R1 is not limited to the above shape. The flow path R1 does not have to have a shape that extends in only one direction, but it is preferable that it is developed along the plane P and has a shape that has parts facing in different directions, such as being bent or curved at each part.

[0037] [Third embodiment] An air purifying device according to a third embodiment of the present invention will be described with reference to the drawings. Fig. 5 is a cross-sectional front view showing a schematic configuration of an air purifying device 1B according to the third embodiment of the present invention, and Fig. 6 is a left side view of a flow path member 4B and an ultraviolet light source 2A, which will be described later. In the third embodiment, for convenience, the left-right direction in Fig. 5 is the left-right direction of the air purifying device 1B, the up-down direction in Fig. 5 is the up-down direction of the air purifying device 1B, and the direction perpendicular to the plane of the paper in Fig. 5 is the front-to-rear direction of the air purifying device 1B (the front side of the paper is the front). However, the orientation of the air purifying device 1B during use can be changed as desired. Furthermore, the dimensions of each part of the air purifying device 1B in the left-right, up-down, and front-to-rear directions or their ratios can be changed as appropriate.

[0038] In the case of the air purifying device 1B, which is the third embodiment, we will mainly explain the differences from the air purifying devices 1 and 1A already described, and the same symbols will be used for components that are substantially or functionally identical to the air purifying devices 1 and 1A described above, and duplicate explanations will be omitted.

[0039] This air purifying device 1B differs from the air purifying devices 1 and 1A in that it has an ultraviolet light source 2A, and a plurality of flow path members 4B are arranged radially around the ultraviolet light source 2A.

[0040] Each flow path member 4B is provided with partition walls 41B-44B having the same structure as the plurality of partition walls 41-43 described above inside a rectangular parallelepiped case. Therefore, each flow path member 4B has a plurality of parallel, straight, linear portions S21-S25 arranged in a stacked state, like the flow path R of the air purifier 1. Furthermore, each flow path member 4B has a meandering flow path R2 inside, in which the ends of the linear portions S21-S25 are connected to each other and deployed along a plane. Note that the number of stacked linear portions S21-S25 may be one or more. The entire flow path member 4B, including the outer case and the inner partition walls 41B to 44B, is made of a material that transmits ultraviolet light well.

[0041] The ultraviolet light source 2A is arranged along the front-rear direction, and the flow path members 4B are arranged radially around the ultraviolet light source 2A. Note that, although an example in which four flow path members 4B are arranged for the ultraviolet light source 2A is shown here, the number can be increased or decreased. Each flow path member 4B is arranged so that the linear portions S21 to S25 inside are parallel to the front-rear direction. Furthermore, each flow path member 4B is arranged close to the ultraviolet light source 2A so that the stacking directions of the linear portions S21 to S25 inside are aligned in the radial direction around the ultraviolet light source 2A.

[0042] As described above, each flow path member 4B is entirely made of a material that transmits ultraviolet light well. Therefore, the ultraviolet light U emitted radially from the ultraviolet light source 2A passes through the multiple linear portions S21 to S25 arranged in a stacked state in each flow path member 4B at one time. As a result, the air flowing through each flow path member 4B is constantly irradiated with the ultraviolet light U while passing through almost the entire internal flow path R2.

[0043] In the case of the air purifying device 1B, an air chamber is provided inside the inlet 31 of the housing 3, and an air supply fan 5 is provided inside the air chamber to circulate air toward the outlet 32 side (downstream side in the flow direction). An air chamber is also provided inside the outlet 32 of the housing 3. As shown by the two-dot chain line in Fig. 5, instead of the air chamber on the inlet 31 side or together with the air chamber on the inlet 31 side, an air supply fan 5 to circulate air toward the outlet 32 side (downstream side in the flow direction) may be provided in the air chamber on the outlet 32 side.

[0044] The air chamber on the inlet 31 side of the housing 3 is connected by a pipe or a tube to an inlet provided at the starting end of the flow path R2 of the first flow path member 4B. Furthermore, the outlet provided at the end of the flow path R2 of the first flow path member 4B is connected to the inlet of the second flow path member 4B via piping or tubing. Similarly, the outlet of the second flow path member is connected to the inlets of the three flow path members, and the outlet of the third flow path member is connected to the inlet of the fourth flow path member via piping or tubing. The outlet of the fourth flow path member 4B is connected to the air chamber on the outlet 32 side of the housing 3 via a pipe or a tube.

[0045] As a result, in the air purifying device 1B, a long flow path is formed between the inlet 31 and the outlet 32 of the housing 3, passing through all of the flow paths R2 in the four flow path members 4B. The four flow path members 4B are arranged as described above relative to the ultraviolet light source 2A, so that the ultraviolet light U is irradiated over almost the entire area of the flow path R2 in each of the flow path members 4B. Therefore, in the air purifying device 1B, it is possible to provide a flow path longer than the distance from the inlet 31 to the outlet 32 inside. Furthermore, since the air purifying device 1B has a circulation path that can irradiate ultraviolet light U over almost the entire interior area, the circulating air can be irradiated with ultraviolet light U efficiently and effectively, thereby further improving the sterilizing ability and virus inactivation ability in the air.

[0046] [Fourth embodiment] An air purifying device according to a fourth embodiment of the present invention will be described with reference to the drawings. Figure 7 is a cross-sectional front view showing the schematic configuration of an air purifying device 1C according to the fourth embodiment of the present invention. In the fourth embodiment, for convenience, the left-right direction in Fig. 7 is the left-right direction of the air purifying device 1C, the up-down direction in Fig. 7 is the up-down direction of the air purifying device 1C, and the direction perpendicular to the plane of the paper in Fig. 7 is the front-to-rear direction of the air purifying device 1C (the front side of the paper is the front). However, the orientation of the air purifying device 1C during use can be changed as desired. Furthermore, the dimensions of each part of the air purifying device 1C in the left-right, up-down, and front-to-rear directions or their ratios can be changed as appropriate.

[0047] Regarding the fourth embodiment of the air purifying device 1C, we will mainly explain the differences from the air purifying devices 1 to 1B, and the same symbols will be used for components that are substantially or functionally identical to the air purifying devices 1 to 1B described above, and duplicate explanations will be omitted. This air purifying device 1C differs from the air purifying devices 1 to 1B in that a flow path member 4C is arranged around an ultraviolet light source 2A.

[0048] The flow path member 4C is a tubular body made of a material that transmits the ultraviolet light U (the same material as the partition wall 41 described above). The flow path member 4C has a spiral shape, and the shape of the flow path member 4C itself is the shape of the flow path. The flow path member 4C may also be made of a tube made of a material that transmits the ultraviolet light U. The ultraviolet light source 2A is arranged along the left-right direction, and the flow path member 4C is arranged around the ultraviolet light source 2A so that its central axis is approximately on the same line as the central axis of the ultraviolet light source 2A. Since the flow path member 4C is spiral, the flow path is developed on a curved surface (peripheral surface) along the outer circumferential surface of a cylinder centered on the ultraviolet light source 2A.

[0049] The right end of the flow path member 4C is connected to an air chamber provided inside an inlet 31 formed in an upper part of the right side wall 33 of the housing 3. The left end of the flow path member 4C is connected to an air chamber provided inside an outlet 32 formed in a lower part of the left side wall 34 of the housing 3.

[0050] The flow path member 4C is structured to allow air to circulate only inside itself, and therefore does not allow air taken in from outside the housing 3 to circulate in the space inside the housing 3 but outside the flow path member 4C.

[0051] Inside the air chamber of the inlet 31 of the housing 3, an air supply fan 5 is provided to circulate air toward the outlet 32 side (downstream side in the flow direction). An air chamber is also provided inside the exhaust port 32 of the housing 3. As shown by the two-dot chain line in Fig. 7, instead of the air chamber on the inlet 31 side or together with the air chamber on the inlet 31 side, an air supply fan 5 for circulating air toward the exhaust port 32 side (downstream side in the flow direction) may be provided in the air chamber on the exhaust port 32 side.

[0052] The flow path member 4C develops a circulation path in a spiral shape along the circumferential surface centered on the ultraviolet light source 2A. Therefore, a circulation path is formed that circles around the ultraviolet light source 2A multiple times, and the ultraviolet light U can be irradiated over almost the entire circulation path at a position close to the ultraviolet light source 2A. Therefore, while passing through a sufficiently long distribution path compared to the distance from the inlet 31 to the outlet 32, ultraviolet light U can be irradiated at a high irradiation concentration over almost the entire distribution path, making it possible to improve the sterilization ability or virus inactivation ability in the air.

[0053] [Fifth embodiment] An air purifying device according to a fifth embodiment of the present invention will be described with reference to the drawings. Figure 8 is a cross-sectional front view showing the schematic configuration of an air purifying device 1D according to the fifth embodiment of the present invention. In the fifth embodiment, for convenience, the left-right direction in Fig. 8 is the left-right direction of the air purifying device 1D, the up-down direction in Fig. 8 is the up-down direction of the air purifying device 1D, and the direction perpendicular to the plane of the paper in Fig. 8 is the front-to-rear direction of the air purifying device 1D (the front side of the paper is the front). However, the orientation of the air purifying device 1D during use can be changed as desired. Furthermore, the dimensions of each part of the air purifying device 1D in the left-right, up-down, and front-to-rear directions or their ratios can be changed as appropriate.

[0054] Regarding the fifth embodiment, the air purifying device 1D, the differences from the air purifying devices 1 to 1C will be mainly explained, and the same symbols will be used for the components that are substantially or functionally identical to the air purifying devices 1 to 1C described above, and duplicate explanations will be omitted. This air purifying device 1D differs from the air purifying device 1C in that the terminal end (downstream end) of the flow path member 4C is open inside the housing 3, but other configurations are the same as those of the air purifying device 1C.

[0055] 8, when the terminal end of the flow path member 4C is opened inside the housing 3, the interior of the housing 3 acts as a buffer, and the air that has passed through the flow path member 4C is temporarily diffused inside the housing 3. Meanwhile, since the ultraviolet light source 2A is irradiating the surroundings with ultraviolet light U inside the housing 3, the diffused air is again irradiated with ultraviolet light U. The air is then discharged to the outside of the housing 3 through the outlet 32. In this air purifying device 1D, the outlet 32 of the housing 3 is positioned away from the terminal end of the flow path member 4C so that the air that has passed through the terminal end of the flow path member 4C is temporarily diffused inside the housing 3.

[0056] In the case of the air purifying device 1D as well, the air supply fan 5 may be provided on either or both of the inlet 31 side and the outlet 32 side.

[0057] As described above, in the air purifying device 1D, the air that has passed through the terminal end of the flow path member 4C is temporarily diffused inside the housing 3, so that the ultraviolet light U can be more effectively irradiated onto the air taken into the device. Therefore, the air purification device 1D can improve the ability to sterilize or inactivate viruses in the air.

[0058] [Sixth embodiment] An air purifying device according to a sixth embodiment of the present invention will be described with reference to the drawings. Figure 9 is a cross-sectional front view showing the schematic configuration of an air purifying device 1E according to the sixth embodiment of the present invention. In the sixth embodiment, for convenience, the left-right direction in Fig. 9 is the left-right direction of the air purifying device 1E, the up-down direction in Fig. 9 is the up-down direction of the air purifying device 1E, and the direction perpendicular to the plane of the paper in Fig. 9 is the front-to-rear direction of the air purifying device 1E (the front side of the paper is the front). However, the orientation of the air purifying device 1E during use can be changed as desired. Furthermore, the dimensions of each part of the air purifying device 1E in the left-right, up-down, and front-to-rear directions or their ratios can be changed as appropriate.

[0059] Regarding the sixth embodiment, the air purifying device 1E, the differences from the air purifying devices 1 to 1D will be mainly explained, and the same symbols will be used for the components that are substantially or functionally identical to the air purifying devices 1 to 1D described above, and duplicate explanations will be omitted. This air purifier 1E differs from air purifier 1C in that a filter 61E made of an ozone decomposition catalyst is provided as an ozone removal section in the air chamber on the exhaust port 32 side to which the terminal end (downstream end) of the flow path member 4C is connected; otherwise, the configuration is the same as that of air purifier 1C.

[0060] When air is irradiated with ultraviolet light, oxygen molecules in the air dissociate and combine with other oxygen molecules to generate ozone. Ozone has the ability to kill bacteria and inactivate viruses, but if its concentration in the air exceeds a certain level, it can also have an adverse effect on the human body. For this reason, all air discharged from the air purifier 1E's exhaust port 32 is passed through a filter 61E made of an ozone decomposition catalyst to reduce or prevent ozone from being released to the outside. An example of an ozone decomposition catalyst is magnesium. In the air purifying device 1E, a filter 61E having a honeycomb structure made of magnesium is provided in the air chamber on the exhaust port 32 side to reduce and remove ozone.

[0061] The ozone removal unit is not limited to the filter 61E, and may be an adsorption decomposition unit using activated carbon, ozone decomposition by high temperature heating, or catalytic decomposition by silica, alumina, or ferric oxide.

[0062] In this way, since the air purifying device 1E is equipped with the filter 61E, even if ozone is generated by irradiating the air with ultraviolet rays, it is possible to reduce or suppress the release of ozone outside the device, thereby making it possible to effectively suppress the effects of ozone. The filter 61E may also be provided in all of the other air purifiers 1 to 1D already described. Also, in the case of the air purifying device 1E, the air supply fan 5 may be provided on either or both of the inlet 31 side and the outlet 32 side.

[0063] [Seventh embodiment] An air purifying device according to a seventh embodiment of the present invention will be described with reference to the drawings. Figure 10 is a cross-sectional front view showing the schematic configuration of an air purifying device 1F according to the seventh embodiment of the present invention. In the seventh embodiment, for convenience, the left-right direction in Fig. 10 is the left-right direction of the air purifying device 1F, the up-down direction in Fig. 10 is the up-down direction of the air purifying device 1F, and the direction perpendicular to the plane of the paper in Fig. 10 is the front-to-rear direction of the air purifying device 1F (the front side of the paper is the front). However, the orientation of the air purifying device 1F during use can be changed as desired. Furthermore, the dimensions of each part of the air purifying device 1F in the left-right, up-down, and front-to-rear directions or their ratios can be changed as appropriate.

[0064] Regarding the seventh embodiment, the air purifying device 1F, the differences from the air purifying devices 1 to 1E will be mainly explained, and the same symbols will be used for components that are substantially or functionally identical to the air purifying devices 1 to 1E described above, and duplicate explanations will be omitted. This air purifier 1F differs from air purifier 1D in that a filter 61E made of an ozone decomposition catalyst is provided in the air chamber on the outlet 32 side, and an ozone generator 62F is provided in the air chamber on the inlet 31 side; otherwise, the configuration is the same as that of air purifier 1D.

[0065] As mentioned above, ozone has the ability to kill bacteria and inactivate viruses. Therefore, in the air purifying device 1F, ozone is actively generated by the ozone generator 62F and added to the air that is taken in, thereby sterilizing the air and inactivating viruses through a synergistic effect with ultraviolet rays. Examples of the ozone generator 62F include silent discharge devices and corona discharge devices. Silent discharge devices generate ozone by arranging a plate-shaped dielectric and a metal, or a dielectric and a dielectric, at a fixed distance and applying an AC voltage between them to cause a discharge in the air. Corona discharge devices are equipped with needle-shaped electrodes and apply a high voltage to the electrodes to cause a discharge in the air, thereby generating ozone.

[0066] In this way, the air purifying device 1F adds ozone generated by the ozone generator 62F to the air taken in from the inlet 31, sterilizes the air and inactivates viruses using ultraviolet light within the flow path member 4C, and also sufficiently diffuses the ozone into the air within the housing 3 to further sterilize and inactivate viruses, and then reduces and removes the ozone using the filter 61E before discharging it. The ozone generator 62F may be provided in an area in the housing 3 where the air passes through the flow path member 4C and is diffused, rather than in the air chamber on the inlet 31 side.

[0067] In this way, the air purifying device 1F is provided with an ozone generator 62F, and actively generates ozone and adds it to the air, thereby making it possible to further improve the sterilizing ability or virus inactivation ability in the air. The ozone generator 62F may be provided in all of the other air purifiers 1 to 1E described above, but it is preferable to also provide a filter 61E on the exhaust port 32 side. Also, in the case of the air purifying device 1F, the air supply fan 5 may be provided on either the inlet 31 side or the outlet 32 side, or on both sides.

[0068] [Eighth embodiment] An eighth embodiment of an air purifying device according to the present invention will be described with reference to the drawings. Figure 11 is a cross-sectional front view showing the schematic configuration of an air purifying device 1G according to the eighth embodiment of the present invention. In the eighth embodiment, for convenience, the left-right direction in Fig. 11 is the left-right direction of the air purifying device 1G, the up-down direction in Fig. 11 is the up-down direction of the air purifying device 1G, and the direction perpendicular to the plane of the paper in Fig. 11 is the front-to-rear direction of the air purifying device 1G (the front side of the paper is the front). However, the orientation of the air purifying device 1G during use can be changed as desired. Furthermore, the dimensions of each part of the air purifying device 1G in the left-right, up-down, and front-to-rear directions or their ratios can be changed as appropriate.

[0069] Regarding the air purifying device 1G, which is the eighth embodiment, we will mainly explain the differences from the air purifying devices 1 to 1F, and the same symbols will be used for components that are substantially or functionally identical to the air purifying devices 1 to 1F described above, and duplicate explanations will be omitted. This air purifying device 1G differs from air purifying device 1D in that a filter 61E made of an ozone decomposition catalyst is provided in the air chamber on the exhaust port 32 side, and in that a heating device 63G is provided in the air chamber on the inlet port 31 side; otherwise, the configuration is the same as that of air purifying device 1D.

[0070] Generally, bacteria and viruses can be killed or inactivated by high-temperature heating. Therefore, in the air purifying device 1G, the air taken in by the heating device 63G is heated to a high temperature to sterilize the air and inactivate viruses. The heating device 63G may be a metal heater, an infrared heater, or the like.

[0071] In this way, the air purifying device 1G sterilizes and inactivates viruses by heating the air taken in through the inlet 31 to a predetermined high temperature using the heating device 63G, and further sterilizes and inactivates viruses using ultraviolet rays.

[0072] In this way, the air purifying device 1G is provided with a heating device 63G, and sterilization and virus inactivation are carried out by combining heating and ultraviolet light, making it possible to further improve the sterilization ability or virus inactivation ability in the air. The heating device 63G may also be provided in all of the other air purifying devices 1 to 1F already described. Also, in the case of the air purifying device 1G, the air supply fan 5 may be provided on either the inlet 31 side or the outlet 32 side, or on both sides.

[0073] [Ninth embodiment] A ninth embodiment of an air purifying device according to the present invention will be described with reference to the drawings. Fig. 12 is a plan view showing a schematic configuration of an air purifying system 100H according to the ninth embodiment of the present invention. This air purification system 100H includes a plurality of air purification devices 1H. The air purification device 1H has the same configuration as any of the air purification devices 1 to 1G described above. The air purification device 1H may be any of the air purification devices 1 to 1G described above, but as the configurations of these devices have all been described above, a description thereof will be omitted in this embodiment. For example, as shown in FIG. 12 , in a room F that is rectangular in plan view, air purifiers 1H are installed at each corner of the room F. Each air purifier 1H is arranged with its air inlet 31 facing the adjacent air purifier 1H located upstream in the clockwise direction and its air outlet 32 facing the adjacent air purifier 1H located downstream in the clockwise direction. This allows each air purifier 1H to take in air discharged from the adjacent air purifier 1H located upstream in the clockwise direction, sterilize and inactivate viruses, and then discharge the air toward the adjacent air purifier 1H located downstream in the clockwise direction. Therefore, each air purifier 1H circulates the air in the room F in the clockwise direction, constantly sterilizing and inactivating viruses, thereby maintaining a clean state. The air circulation direction may also be counterclockwise. Additionally, filters may be provided at the intake and exhaust ports of each air purifier 1H. In this case, the intake filter is preferably a coarse-mesh filter that removes dirt, dust, etc. The exhaust filter is preferably a fine-mesh filter that can block bacteria and viruses that could not be sterilized or inactivated by ultraviolet light. Viruses and bacteria remaining in the filter are sterilized or inactivated by ultraviolet light from the inside. These filters may also be provided in all other air purifiers 1 to 1G already described. Furthermore, if the air exhaust force of the air supply fan 5 is insufficient to reach the adjacent air purifying device 1H, a circulator may be provided outside the outlet 32 of each air purifying device 1H.

[0074] Furthermore, in the example of FIG. 12, air stagnates in the center of room F, and there is a risk that sterilization and virus inactivation may be insufficient in that area. In this case, an actuator may be provided to change the airflow direction of the air supply fan 5 or circulator of each air purifying device 1H, and a control device that comprehensively controls the actuators of each air purifying device 1H may be used to periodically or cyclically change the airflow direction of the air supply fan 5 or circulator.

[0075] In this case, as shown in Fig. 13, the actuators of one of a pair of diagonally positioned air purifying devices 1H and one of a pair of diagonally positioned air purifying devices 1H are controlled so that they each blow air toward the air purifying device 1H located diagonally therefrom. Also, the actuators of the remaining two air purifying devices 1H are controlled so that they blow air toward the adjacent air purifying device 1H in the clockwise or counterclockwise direction of the air circulation direction. By controlling the control device to alternate between the air blowing state of Figure 12 and the air blowing state of Figure 13, air is periodically blown to the center of room F, making it possible to sterilize the air throughout the room and inactivate viruses.

[0076] Furthermore, if one of a pair of diagonally positioned air purifying devices 1H and one of a pair of diagonally positioned air purifying devices 1H each blow air toward the diagonally positioned air purifying device 1H, the air blowing directions may cross, interfering with each other's air blowing. Therefore, it is preferable that a pair of air purifying devices 1H located diagonally from one another and another pair of air purifying devices 1H located diagonally from one another be placed at different heights. Alternatively, the heights of the four air purifying devices 1H may be set to be equal, and the air blown in the center of the room F may be intentionally made to cross each other, thereby stirring the air in the room F.

[0077] [Tenth embodiment] A tenth embodiment of an opening device including an air cleaning device according to the present invention will be described with reference to the drawings. The opening device 200I is installed in a rectangular opening formed in the skeleton of a building, and in this embodiment is a fixed window in which a surface material such as a glass plate is housed in a frame. Figure 14 is a front view showing the interior of the indoor side of the single window opening device 200I, Figure 15 is a vertical cross-sectional view of the opening device 200I taken along line AA in Figure 14, and Figure 16 is a horizontal cross-sectional view of the opening device 200I taken along line BB in Figure 14.

[0078] In the description of the opening device 200I, the width direction is defined as the left-right direction (sometimes referred to as the view direction or in-plane direction), the height direction as the up-down direction (sometimes referred to as the view direction), and the direction perpendicular to the plane of the paper in Fig. 14 (the left-right direction on the plane of the paper in Fig. 15) as the front-rear direction (sometimes referred to as the view direction or out-of-plane direction). Note that for the air purifying device 1 incorporated into this opening device 200I, the left-right direction, up-down direction, and front-rear direction defined in Fig. 1 do not coincide with the left-right direction, up-down direction, and front-rear direction in the opening device 200I. Furthermore, for opening device 200I, the top, bottom, left, and right when viewed from the indoor side are defined as the top, bottom, left, and right of opening device 200I. Furthermore, for opening device 200I, the indoor side is defined as the front, and the outdoor side is defined as the rear. In this embodiment, unless otherwise specified, the directions of each part will be described on the assumption that the opening device 200I is installed in a building so that the top and bottom are parallel to the vertical up and down direction, and the front, back, left and right of the opening device 200I are parallel to the horizontal direction.

[0079] The opening device 200I includes left and right vertical frames 210, an upper frame 220, and a lower frame 230. The air purifying device 1 is provided on the lower frame 230 of the opening device 200I. As the configuration of the air purifying device 1 has already been explained, detailed explanation will be omitted, but in this embodiment, a curved portion 252 of a lid member 250, which will be described later, serves as a reflective surface, and ultraviolet light U (not shown) emitted from the ultraviolet light source 2 is reflected upward by the curved portion 252. In this case, the reflected light is reflected upward along the curved surface of the curved portion 252, so the angle of the ultraviolet light U is an inclined angle rather than vertical as in the first embodiment, but the sterilization ability and the like are the same. Note that opening device 200I may be equipped with any of air purifying devices 1A to 1G instead of air purifying device 1 described above.

[0080] The vertical frame 210 forms the left and right frames of the opening device 200I, and as shown in Figure 16, it has a surface material accommodating groove portion 211 that accommodates one end of the left and right sides of the surface material 240 such as a glass plate, and an installation space portion 212 for installing the cover member 250.

[0081] The installation space 212 is provided with a receiving piece 213 for locking one end of the cover member 250 and a receiving groove 214 for locking the other end. Further, an elastic member 251 is provided in the installation space 212 to serve as a spacer when the cover member 250 is installed.

[0082] 15, the upper frame 220 constitutes the upper frame of the opening device 200I, and has substantially the same structure as the vertical frame 210. The upper frame 220 is provided with a surface material accommodating groove 221 that accommodates the upper end of a surface material 240 such as a glass plate, and an installation space 222 for installing the lid member 250. The lid member 250 is a hollow member that extends in a fixed direction with the cross-sectional shape shown in the drawing. Some of the lid members 250 described below store the air purifying device 1 inside. Furthermore, the lid members 250 that do not store the air purifying device 1 may be configured as a plate-shaped member that closes the installation space 222 instead of having a hollow structure.

[0083] The installation space 222 is provided with a receiving piece 223 and a receiving groove 224. These have the same structure as the receiving piece 213 and the receiving groove 214 of the vertical frame 210 described above. Also, similar to the vertical frame 210, the mounting space 222 is provided with a cover member 250 and an elastic member 251.

[0084] The lower frame 230 constitutes the lower frame of the opening device 200I, and as shown in Fig. 15, is made up of a main body 231 and a push edge 232 that is removable from the main body 231 and that is separated when assembling or removing a face material 240 such as a glass plate. The lower frame 230 has a face material accommodating groove 233 on the upper rear side, and an assembly space 234 on the upper front side for assembling the lid member 250.

[0085] The installation space 234 is provided with a receiving piece 235 and a receiving groove 236. These have the same structure as the receiving piece 213 and receiving groove 214 of the vertical frame 210 described above. Also, similar to the vertical frame 210, the mounting space 234 is provided with a cover member 250 and an elastic member 251.

[0086] The air purifying device 1 is stored inside the cover member 250 incorporated into the lower frame 230. The air purifying device 1 forms a circulation path inside the cover member 250, which functions as the housing 3, and is equipped with an ultraviolet light source 2, an air supply fan 5, etc. Also, an inlet 31 is provided near the left end of the top surface of the cover member 250, and an outlet 32 is provided near the right end, both of which face upward. Note that the inlet 31 and the outlet 32 may be arranged in reverse in the left-right direction. Furthermore, the housing 3 of the air purifying device 1 may be configured inside the lid member 250, or instead of the lid member 250, the frame wall surface of the lower frame 230 may configure the housing of the air purifying device 1. Furthermore, the shapes and arrangements of the ultraviolet light source 2 and the air supply fan 5 in FIG. 15 are merely examples, and can be changed as appropriate depending on which of the air purifying devices 1 to 1G is installed. In addition, the power source of the air supply fan 5 may be a battery, in which case there is no need to run wiring from the main body to the lower frame, which is easy to install.

[0087] The arrows in Fig. 14 indicate the flow of air through the air purifying device 1. As shown in Fig. 14, the opening device 200I takes in air through the inlet 31 on the left side of the top surface of the lower frame 230, sterilizes the air and inactivates viruses as it passes through the interior, and discharges the air upward from the outlet 32 on the right side of the top surface of the lower frame 230.

[0088] As described above, in the opening device 200I, the inlet 31 and outlet 32 of the air purifying device 1 are arranged on the indoor side of the face material 240 such as a glass plate in the lower frame 230, so by installing the opening device 200I in a building, it is possible to sterilize bacteria and inactivate viruses in the air inside the building. Furthermore, because the air purifying device 1 is provided in the internal space of the lower frame 230, it is possible to achieve effective space saving.

[0089] [Eleventh embodiment] An eleventh embodiment of an opening device including an air cleaning device according to the present invention will be described with reference to the drawings. The opening device 200J is installed in a rectangular opening formed in the skeleton of a building, and in this embodiment, it is also a fixed window. Figure 17 is a front view showing the interior of the indoor side of the opening device 200J of the multi-tiered window, Figure 18 is a vertical cross-sectional view of the opening device 200J along line CC in Figure 17, and Figure 19 is a horizontal cross-sectional view of the opening device 200J along line DD in Figure 17. Furthermore, the definitions of the left-right direction, the up-down direction, and the front-rear direction in the opening device 200J are the same as those in the opening device 200I described above. Furthermore, in the configuration of the opening device 200J, the same components as those of the opening device 200I described above are denoted by the same reference numerals, and duplicated explanations will be omitted.

[0090] The opening device 200J includes a vertical frame 210, an upper frame 220, a lower frame 230, a mullion 260, and a transom 270. The vertical frame 210, the upper frame 220, the lower frame 230, and the transom 270 are provided on both the left and right sides of the mullion 260. In addition, the opening device 200J has upper panel members 280 made of glass plates or the like above the transom 270 and on the left and right sides of the upright 260, and has lower panel members 290 made of glass plates or the like below the transom 270 and on the left and right sides of the upright 260. The air cleaning device 1 is provided individually on the lower frame 230, the upper frame 220 and the transom 270 of the opening device 200J. In the case of opening device 200J, any one of air purifying devices 1A to 1G may be installed instead of air purifying device 1 described above.

[0091] The vertical frame 210, upper frame 220, and lower frame 230 have the same configuration as the opening device 200I.

[0092] 19, the mullion 260 is made up of a left mullion member 261 and a right mullion member 262, each of which has a panel receiving groove 263 that receives one end of the upper and lower panel members 280, 290. The left mullion member 261 and the right mullion member 262 are connected by connecting portions 264, 265, and further fastened with screws. The left upright member 261 and the right upright member 262 are formed in a concave shape and are provided with an installation space portion 266 for installing the cover member 250 therein. The installation space 266 is provided with a receiving piece 267 that engages one end of the cover member 250 and a receiving groove 268 that engages the other end of the cover member 250. These have the same structure as the receiving piece 213 and receiving groove 214 of the vertical frame 210 described above. Also, similar to the vertical frame 210, the mounting space 266 is provided with an elastic member 251 together with the cover member 250.

[0093] The transom 270 forms a horizontal frame used for an opening, and as shown in Figure 18, is composed of a main body 271 and a ledge 272 that can be removed from the main body 271 and separated when the upper panel 280 is installed or removed. In addition, panel material accommodating grooves 273, 274 that accommodate one ends of the upper and lower panel materials 280, 290 are provided on the upper and lower sides of the rear of the transom 270. Furthermore, an installation space 275 for installing the lid member 250 is provided on the lower front side of the transom 270.

[0094] The installation space 275 is provided with a receiving piece 276 and a receiving groove 277. These have the same structure as the receiving piece 213 and receiving groove 214 of the vertical frame 210 described above. Also, similar to the vertical frame 210, the mounting space 275 is provided with a cover member 250 and an elastic member 251.

[0095] The air purifying device 1 is stored inside the cover member 250 incorporated into the transom 270. The air purifying device 1 forms a circulation path inside the cover member 250, which functions as the housing 3, and is equipped with an ultraviolet light source 2, an air supply fan 5, etc. Also, an inlet 31 is provided near the left end of the underside of the cover member 250, and an outlet 32 is provided near the right end, both of which face downward. Note that the inlet 31 and the outlet 32 may be arranged in the reversed left-right direction. Furthermore, the housing 3 of the air purifying device 1 may be configured inside the lid member 250, or instead of the lid member 250, the frame wall surface of the transom 270 may configure the housing of the air purifying device 1.

[0096] Although the transom 270 has the installation space 275 only on the lower side, it may also have the installation space 275 on the upper side. In this case, the air purifying device 1 may be housed and installed inside the lid member 250 that is installed in the installation space 275.

[0097] In addition, in the opening device 200J, the air purifying device 1 is also stored inside the lid member 250 incorporated into the upper frame 220. The upper frame 220 has an inlet 31 near the left end of the lower surface and an outlet 32 near the right end, both of which face downward, penetrating the lower surface of the lid member 250. The inlet 31 and the outlet 32 may be arranged in the reversed left-right direction. Also, in the case of the upper frame 220, the housing 3 of the air purifying device 1 may be configured inside the lid member 250, or instead of the lid member 250, the frame wall surface of the upper frame 220 may configure the housing of the air purifying device 1.

[0098] The arrows in Fig. 17 indicate the flow of air through the air purifying device 1. As shown in Fig. 17, opening device 200J takes in air through inlet 31 on the left side of the top surface of lower frame 230, sterilizes the taken-in air and inactivates viruses as the air passes through the interior, and discharges the air from outlet 32 on the right side of the top surface of lower frame 230. In addition, air is taken in through the inlet 31 on the left side of the underside of the upper frame 220 and the transom 270, and the air taken in is sterilized and viruses are inactivated as it passes through the interior, and then discharged from the outlet 32 on the right side of the underside of the upper frame 220 and the transom 270.

[0099] In the opening device 200J, the inlet 31 and outlet 32 of the air purifying device 1 are positioned on the indoor side of the upper panel 280 and the lower panel 290 in the upper frame 220, lower frame 230 and transom 270, so that by installing the opening device 200J in a building, it is possible to sterilize bacteria and inactivate viruses in the air inside the building.

[0100] Furthermore, the opening device 200J has the air purifying device 1 provided inside the cover member 250 not only in the lower frame 230 but also in the upper frame 220 and the transom 270, so it is possible to more effectively sterilize bacteria and inactivate viruses in the air inside a building. In this case, the air purifying device 1 is provided not only in the lower frame 230 but also in the internal space of the cover member 250 of the upper frame 220 and the transom 270, so it is possible to increase the number of air purifying devices 1 while achieving effective space saving.

[0101] Furthermore, the opening devices 200I and 200J may be equipped to store the air purifying device 1 (or 1A to 1G) inside the vertical frame 210, the cover member 250 of the mullion 260, or the inside of the installation space portions 212 and 266. FIG. 20 is a partial cross-sectional view taken along the horizontal direction, showing an example in which the air purifying device 1 is stored and installed inside the cover member 250 of the left vertical frame 210.

[0102] The vertical frame 210 has an inlet 31 near the upper end of the right face and an outlet 32 near the lower end of the right face, both of which face rightward, penetrating the right face of the lid member 250 (the left face in the case of the right-side vertical frame 210). The inlet 31 and the outlet 32 may be arranged in the reversed vertical direction. In the case of the vertical frame 210, the housing 3 of the air purifying device 1 may be configured inside the lid member 250, or instead of the lid member 250, the frame wall surface of the vertical frame 210 may configure the housing of the air purifying device 1. In this case, air is taken in through the inlet 31 on the upper right side of the vertical frame 210, sterilized and viruses are inactivated as it passes through the interior, and then discharged through the outlet 32 on the lower right side. In addition, in the case of the left and right installation spaces 266, 266 of the mullion 260, it is possible to install the air purifying device 1 in the same way as the vertical frame 210.

[0103] Although the opening device 200I, 200J has been described above as a fixed window in which a face material is housed in a frame, the opening type is not limited to this and may be a sliding window, a casement window, etc. In this case, the air purifying device 1 is housed in a paper door set into the frame. Moreover, the opening device 200I, 200J may be a curtain wall configured as an outer wall of a building. [Explanation of symbols]

[0104] 1~1H Air Purifier 2,2A UV light source 3. Housing 31 Inlet 32 Outlet 4~4C Flow path components 5. Air supply fan (air supply means) 41~43 Bulkhead 41B~44B Bulkhead 61E Filter (ozone removal part) 62F Ozone Generator 63G heating device 100H Air Purification System 200I, 200J opening device 250 Lid member P,P1 plane R, R1, R2 distribution channel S1~S4,S11~S13,S21~S25 Linear part U ultraviolet light

Claims

1. an ultraviolet light source; a flow path member that forms an air flow path; a blower for circulating air through the flow path defined by the flow path member, the flow path member transmits ultraviolet light, and the flow path extends along a flat or curved surface; the flow path has a plurality of linear portions, the plurality of linear portions are arranged side by side in a stacked state, a plurality of the flow path members; A plurality of the flow path members are arranged around the ultraviolet light source; An air purifying device, wherein a plurality of the flow path members are connected to each other so that air passes through all of the flow path members.

2. the flow path member extends the flow path along a plane, The air purifying device according to claim 1 , wherein the ultraviolet light source irradiates ultraviolet light along the plane so as to transmit the ultraviolet light through the flow path member.

3. The air purifying device according to claim 1 , wherein the shape of the flow path member corresponds to the shape of the circulation path.

4. 4. The air purifying device according to claim 1, further comprising a housing that houses the flow path member and the ultraviolet light source and blocks ultraviolet light.

5. 5. The air purifying device according to claim 4, wherein the housing has a reflective surface that reflects ultraviolet rays to block ultraviolet rays.

6. 6. The air purifying device according to claim 4, wherein the housing includes an air chamber inside at least one of the inlet and the outlet.

7. 7. The air purifying device according to claim 4, wherein a terminal end of the flow path is open inside the housing.

8. 8. The air purifying device according to claim 1, further comprising an ozone removing unit that removes ozone from the air that is discharged to the outside of the device.

9. 9. The air purifying device according to claim 8, further comprising an ozone generator for supplying ozone to the air taken into the device.

10. 10. The air purifying device according to claim 1, further comprising a heating device for heating the air taken into the device.

11. An opening device equipped with an air purifying device described in any one of claims 1 to 10.

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