JP2023133929A - Air cleaner - Google Patents

Abstract

To provide an air cleaner which introduces air at a proper height to purify the air and can discharge the purified air at the proper height in indoor spaces at various heights.SOLUTION: An air cleaner includes: an upper block 11 having air outlets 14a, 14b formed; a middle block 12 which is provided hanging from the upper block 11 and having a duct formed; and a lower block 13 coupled to the middle block 12 and having air inlets 15a, 15b, 15c formed. The upper block 11 has an upper ventilation flue 11pth formed leading to the air outlets, and the lower block 13 has a lower ventilation flue 13pth formed leading to the air inlets. Further, the air cleaner has: a blower 16 provided at the upper block 11; and a purifier 17 provided at the lower block. The upper block 11 and the lower block 13 may be coupled to each other so that the upper ventilation flue and the lower ventilation flue communicate with each other.SELECTED DRAWING: Figure 1

Description

The present invention relates to an air cleaning device.

BACKGROUND ART Conventionally, an air cleaner (air cleaning device) described in Patent Document 1 has been known. This air purifier is used by being installed on the floor of a room that has a space between the ceiling and the floor. An inlet is formed in the lower part of the main body of this air purifier, and an outlet is formed in the top surface of the main body. A ventilation path is formed in the main body to communicate the inlet and the outlet, and the ventilation path is provided with a filter for purifying the air. Further, the ventilation passage is provided with a fan (blower) that introduces air from an inlet and releases the air from an outlet. A louver is provided near the air outlet for changing the direction of air blowing out from the air outlet.

Such an air purifier can suck in air containing fine particles such as dust, microorganisms, mold spores, etc. floating in a space near the floor of a room through an inlet. The filter removes fine particles from the air that is sucked in through the suction port and passes through the ventilation path. Then, the air that has been purified by removing the fine particles is further blown out from the air outlet through the ventilation passage. According to such an air cleaner, clean air can be provided to a user located at a relatively low level in the room, such as a user lying on a bed in the room.

Japanese Patent Application Publication No. 2016-70511

By the way, the height of the ceiling in indoor spaces such as commercial facilities such as large-scale retail stores, ordinary rooms in general houses, open-air rooms in general houses, lofts, tea rooms, etc. varies. Under such circumstances, conventional air purifiers, in which the relative positional relationship between the intake port and the outlet is fixed, are unable to clean the air in the middle layer of the room in many rooms at various heights. It is difficult to introduce air at an appropriate height, purify it, and release the purified air at an appropriate height, such as by introducing and purifying the air and releasing the purified air near the ceiling. .

The present invention was made in view of the above circumstances, and is a method of introducing air at an appropriate height into indoor spaces of various heights, purifying it, and releasing the purified air at an appropriate height. The present invention provides an air purifying device that can perform the following tasks.

The air purifying device according to the present invention includes an upper block in which an air outlet for discharging air forward is formed, and an upper block that is provided to hang down from the upper block and extends from one end of the upper block to the other end. The upper block has a middle block in which a duct is formed, and a lower block connected to an end of the middle block opposite to the end on the upper block side and in which an intake port is formed, and the upper block includes: An upper ventilation passage communicating with the duct of the middle block and continuing to the air outlet is formed, and a lower ventilation passage communicating with the duct of the middle block and continuing to the air intake opening is formed in the lower block, Further, a blower is provided on the upper block and causes air to be introduced from the intake port and discharged from the outlet through the lower ventilation passage, the duct, and the upper ventilation passage; and a blower provided on the lower block. , a purifier that purifies the air introduced from the intake port into the lower ventilation passage, and the upper block and the lower block are arranged so that the upper ventilation passage and the lower ventilation passage communicate with each other. The configuration can be a structure that can be coupled to.

With this configuration, air is introduced from the intake port of the lower block by the operation of the blower, and the introduced air is purified by the purifier. The purified air rises through the lower ventilation passage of the lower block and the duct of the middle block, further passes through the upper ventilation passage of the upper block from the duct, and is blown out from the outlet.

Further, the middle block can be removed and the upper block and lower block can be directly connected so that the upper ventilation passage and the lower ventilation passage communicate with each other. In this configuration, air is introduced from the intake port of the lower block by the operation of the blower, and the introduced air is purified by the purifier. The purified air passes through the lower ventilation passage of the lower block and the upper ventilation passage of the upper block and is blown out from the outlet.

In this way, the upper block and the lower block can be directly connected by removing the middle block, so that the air inlet formed in the lower block and the upper The distance between the air outlet and the air outlet formed in the block can be changed.

In the air purifying device according to the present invention, the air outlet in the upper block may be configured to open in a direction perpendicular to an extending direction of the middle block.

With this configuration, the purified air rising in the duct of the middle block is blown out from the outlet in a direction perpendicular to the direction in which the air rises. For example, by installing the air purifier so that the upper block is placed near the ceiling of the room, the purified air blown out from the outlet can be made to travel along the ceiling surface. can.

In the air purifying device according to the present invention, the middle block may be configured to include one or more partial blocks out of a predetermined number of partial blocks that can be connected and separated.

With such a configuration, the middle block can be expanded or contracted with the length of a predetermined number of connected partial blocks being the maximum length. As a result, the distance between the air intake port formed in the lower block and the air outlet formed in the upper block can be changed.

The air purifying device according to the present invention includes a back plate provided to hang down from the upper block, and each of the one or more partial blocks of the middle block is configured to cover the back plate. It may be configured to include a compartment cover plate coupled to the plate and forming the space as the duct together with the back plate.

With such a configuration, by combining one or more compartment cover plates corresponding to the length of the back plate to the back plate, it is possible to configure a middle block having a length corresponding to the length of the back plate. can.

In the air purifying device according to the present invention, the lower block is coupled to the compartment cover plate of the middle block and coupled to the back plate to form a space as the lower ventilation passage together with the back plate, and the lower block The configuration may include a bottom compartment cover plate with a mouth formed therein.

With this configuration, the lowermost compartment cover plate is coupled to the back plate so as to follow one or more compartment cover plates constituting the middle block, thereby forming a lower block in which a lower ventilation passage is formed to be coupled to the middle block. can be configured.

In the air purifying device according to the present invention, the purifier includes a photocatalyst carrier that supports a photocatalyst and a light source that irradiates the photocatalyst with excitation light, and the photocatalyst carrier is an inner surface of the lowermost compartment cover plate. The light source may be provided at a portion of the back plate covered by the lowermost section cover plate so as to face the photocatalyst carrier.

With this configuration, by coupling the lowermost compartment cover plate to the rear cover so as to cover the rear cover, a purifier including a photocatalyst activated by excitation light can be configured in the lower ventilation passage of the lower block. I can do it.

In the air purifying device according to the present invention, the purifier may include a filter for removing fine particles, and the filter may be provided on the lowermost compartment cover plate.

With such a configuration, by coupling the lowermost compartment cover plate to the rear cover so as to cover the rear cover, a purifier including a filter for removing fine particles can be constructed.

According to the air purifying device according to the present invention, the interval between the intake port formed in the lower block and the outlet formed in the upper block is changed depending on whether the middle block is included or when the middle block is removed. Therefore, in indoor spaces of various heights, air at an appropriate height can be introduced and purified, and the purified air can be released at an appropriate height.

FIG. 1 is a perspective view showing the appearance of an air cleaning device according to an embodiment of the present invention. FIG. 2 is a diagram showing the internal structure of the air purifier shown in FIG. 1 and the relationship between the air purifier and the space of the room in which it is installed. FIG. 3 is a perspective view showing the back plate depending from the upper block. FIG. 4 is a perspective view (part 1) showing the compartment cover plate of the middle block. FIG. 5 is a perspective view (part 2) showing the compartment cover plate of the middle block. FIG. 6 is a cutaway perspective view showing the internal structure of a middle block composed of a plurality (three) of compartment cover plates and the internal structure of an upper block in which an upper ventilation passage is formed. FIG. 7 is a perspective view (part 1) showing an inner plate that is a component of the lowermost compartment cover plate (lower block). FIG. 8 is a perspective view (part 2) showing the inner plate which is a component of the lowermost compartment cover plate (lower block). FIG. 9 is a partial perspective view showing an enlarged area of the lowermost section of the back plate to be covered by the cover plate. FIG. 10 is a partial perspective view showing a state in which the inner plate of the lowermost compartment cover plate is attached to the back plate. FIG. 11 is a partial perspective view showing the basic configuration of the purifier. FIG. 12 is a perspective view (part 1) showing an outer plate that is a component of the lowermost compartment cover plate (lower block). FIG. 13 is a perspective view (part 2) showing the outer plate which is a component of the lowermost compartment cover plate (lower block). FIG. 14 is a partial perspective view showing how the outer plate is attached to the inner plate attached to the back plate. FIG. 15 is a perspective view showing a lowermost compartment cover plate composed of an inner plate and an outer plate. FIG. 16 is a perspective view showing the air purifier in a state where the middle block is removed and the upper block and lower block are directly connected.

Embodiments of the present invention will be described below with reference to the drawings.

An air cleaning device according to an embodiment of the present invention is configured as shown in FIGS. 1 and 2.

The air cleaning device 10 has an upper block 11, a middle block 12, and a lower block 13, which are arranged in series in the vertical direction. The air purifying device 10, which has three blocks arranged in series and has a long shape in the vertical direction, is fixed to the pillar 220 at its back, for example, and the upper surface of the upper block 11 is in contact with the ceiling 210, while the lower block The device is installed in a room (for example, a commercial facility such as a large-scale retail store) so that a space is formed between the lower end of the device 13 and the floor 200.

The middle block 12 has a box shape with a predetermined thickness (thickness in the direction perpendicular to the wall surface of the column 220), and a duct 12dct extending from the lower end to the upper end is formed inside the middle block 12. The upper block 11 has a rising portion 11a continuing from the middle block 12, and a protruding portion 11b continuing from the rising portion 11a and protruding forward. On the front surface of the protrusion 11b of the upper block 11, two air outlets 14a and 14b are formed that extend in parallel in the lateral direction. Further, in the upper block 11, an upper ventilation passage 11pth is formed which communicates with the duct 12dct of the middle block 12 and continues to the two air outlets 14a and 14b. A blower 16 is provided in the upper ventilation passage 11pth.

The lower block 13 has a box shape that has the same thickness as the middle block 12 and is shorter than the middle block 12, and has an intake port 15a formed on its lower surface, and intake ports 15b and 15c formed on its two side surfaces. Inside the lower block 13, a lower ventilation passage 13pth is formed which communicates with the duct 12dct of the middle block 12 and continues to three air supply ports 15a, 15b, and 15c. Further, a purifier 17 is provided in the lower ventilation passage 13pth of the lower block 13 to purify the air passing through the lower ventilation passage 13pth. The purifier 17 includes a filter (e.g., HEPA filter) that removes fine particles (dust, mold spores, microorganisms, etc.), a photocatalyst carrier that supports a photocatalyst (e.g., titanium dioxide), and a photocatalyst that emits excitation light (e.g., ultraviolet light). ) has a light source (for example, an ultraviolet LED). Note that the detailed configuration of the purifier 17 will be described later.

In the air purifying device 10 having such a configuration, the lower ventilation passage 13pth of the lower block 13, the duct 12dct of the middle block 12, and the upper ventilation passage 11pth of the upper block 11 are connected to the three air intake ports 15a, 15b, and 15c. It is formed as one passage that continues to the blow-off ports 14a and 14b. When the blower 16 of the upper block 13 operates, the air introduced into the lower ventilation passage 13pth from the three intake ports 15a, 15b, and 15c of the lower block 13 passes through the purifier 17 and is purified. The purified air is further blown out from the lower ventilation passage 13pth through the duct 12dct (middle block 12) and the upper ventilation passage 11pth, and from the two outlets 14a and 14b (upper block 11) (see thick arrows in FIG. 2). ).

A more detailed structure of the air cleaning device 10 will be explained.

The middle block 12 is composed of a predetermined number (for example, three) of partial blocks 12a, 12b, and 12c (see FIG. 1). As shown in FIG. 3 together with FIGS. 1 and 2, the air cleaning device 10 has a back plate 18 that is provided to hang down from the upper block 11. A middle block 12 and a lower block 13 are formed on the back plate 18 . The back plate 18 is provided with three areas 18a, 18b, 18c arranged in the vertical direction corresponding to the three partial blocks 12a, 12b, 12c of the middle block 12, and these areas 18a, 18b, 18c are Subsequently, a region 18d corresponding to the lower block 13 is set. A section cover plate 20 (see FIGS. 4 and 5), which will be described later, is fixed to both sides of the lower end of each of the regions 18a, 18b, 18c corresponding to the middle block 12 (partial blocks 12a, 12b, 12c) of the back plate 18. A pair of brackets 23 are provided.

As shown in FIGS. 4 and 5, the compartment cover plate has a front part and two side parts formed to extend at right angles from both edges of the front part, and are arranged in opposite directions and above and below the front part. It has an open shape in both directions. The compartment cover plate 20 having such a shape has a structure in which a connecting portion 20b of a predetermined length protrudes from the lower edge of the plate main body 20a. A plurality of fitting brackets 21 (see FIG. 5) are provided on the inner surface of the upper edge of the plate body 20a. Furthermore, coupling brackets 22 are provided on the inner surfaces of both end portions of the connecting portion 20b.

As shown in FIG. 6, the three compartment cover plates 20 each having the structure described above are connected to form the middle block 12 (partial blocks 12a, 12b, 12c).

Specifically, first, a compartment cover plate (hereinafter referred to as an upper compartment cover plate as appropriate) is inserted so that the fitting bracket 21 is engaged with the connecting portion 11c formed at the lower edge of the rising portion 11a of the upper block 11. 20 is coupled to the upper block 11. Then, with the upper section cover plate 20 covering the region 18a of the back plate 18, the coupling bracket 23 of the region 18a and the coupling bracket 22 of the upper section cover plate 20 are connected to each other using bolts/nuts, etc. It is secured by fasteners to form a partial block 12a.

Next, a new compartment cover plate (hereinafter referred to as an intermediate compartment cover plate) 20 is coupled to the upper compartment cover plate 20 so that the fitting bracket 21 engages with the connecting portion 20b of the upper compartment cover plate 20. do. Then, with the middle section cover plate 20 covering the region 18b continuing below the region 18a of the back plate 18, the coupling bracket 23 of the region 18b and the coupling bracket 22 of the middle section cover plate 20 are connected. A partial block 12b is formed which continues below the partial block 12a described above by being fixed with a fastener.

Furthermore, a new compartment cover plate (hereinafter referred to as a lower compartment cover plate as appropriate) 20 is coupled to the intermediate compartment cover plate 20 such that the fitting bracket 21 engages with the connecting portion 20b of the intermediate compartment cover plate 20. do. Then, with the lower section cover plate 20 covering the region 18c continuing below the region 18b of the back plate 18, the coupling bracket 23 of the region 18c and the coupling bracket 22 of the lower section cover plate 20 are connected to the fastening portion. A partial block 12c is formed which continues below the partial block 12b described above.

By connecting the three compartment cover plates (upper compartment cover plate, middle compartment cover plate, lower compartment cover plate) 20 to cover the back plate 18 (regions 18a, 18b, 18b) in this way, the back plate 18 and the three compartment cover plates 20, a middle block 12 is constructed having a space as a duct 12dct.

Further, the lower block 13 includes an inner cover 25a as shown in FIGS. 7 and 8 and an outer cover 25b as shown in FIGS. 11 and 12, which will be described later, in the lowest region 18c of the back plate 18. It is formed by combining two compartment cover plates (hereinafter referred to as the lowermost compartment cover plate) 25.

, 7 and 8, the inner plate 25a of the lowermost compartment cover plate 25 has a connecting portion 25aa formed at its upper portion, and has a generally quadrangular pyramidal outer shape as a whole. A rectangular opening (not shown) is formed in the inner plate 25a (see FIG. 7), and a plate-shaped filter unit 171 (for example, a HEPA filter) for removing fine particles is installed so as to cover the opening from the outer surface side. ) is provided. This plate-shaped filter unit 171 is detachably attached to the outer surface of the inner plate 25a and can be replaced. Furthermore, four roller catches 27 are provided around the filter unit 171 on the outer surface of the inner plate 25a.

On the inner surface of the inner plate 25a (see FIG. 8), a plurality of photocatalyst supporting plates 172 each supporting a photocatalyst (for example, titanium dioxide) are provided in a predetermined arrangement. A plurality of fitting brackets 26 are provided at the inner edge portion of the connecting portion 25aa formed at the upper part of the inner plate 25a.

On the other hand, as shown in FIG. 9, in the lowest area 18d of the back plate 18 to which the lowest compartment cover plate 25 is attached, there are a plurality of light source plates 173 that each irradiate the excitation light of the photocatalyst forward. is provided. These plurality of light source plates 173 are arranged in the same arrangement form as the plurality of photocatalyst supporting plates 172 (see FIG. 8) described above. Each of the plurality of light source plates 173 is fixed to a mounting plate 28 provided in a region 18d of the back plate 18.

The inner plate 25a, on which the filter unit 171 and the plurality of photocatalyst supporting plates 172 are provided as described above (see FIGS. 7 and 8), is slid onto the lowest region 18d of the back plate 18, as shown in FIG. It is attached. Then, the inner plate 25a is arranged so that the fitting bracket 26 (see FIG. 8) is engaged with the connecting portion 20b of the lower section cover plate 20 (see FIG. 6) constituting the lowest partial block 12c of the middle block 12. (connecting portion 25aa) is coupled to the lower section cover plate 20 (partial block 12c: middle block 12). The inner plate 25a coupled to the lower section cover plate 20 constituting the middle block 12 (partial block 12c) is fixed to the back plate 18 (region 18d) with a fixing device such as a screw.

With the inner plate 25a of the lowermost compartment cover plate 25 fixed to the back plate 18 (area 18d) in this way, each of the plurality of photocatalyst supporting plates 172 (see FIG. 8) provided on the inner surface of the inner plate 25a is opposed to one of the plurality of light source plates 173 (see FIG. 9) provided on the back plate 18 (region 18d). In this way, the purifier 17 is configured with the inner plate 25a fixed to the back plate 18 (region 18d). As shown in FIG. 11, this purifier 17 includes a filter unit 171, a photocatalyst support plate 172 that supports a photocatalyst, and a light source plate 173 that irradiates light (ultraviolet light) that excites the photocatalyst on the photocatalyst support plate 172 at predetermined intervals. It becomes the one arranged with . The light source plate 173 has a structure in which a plurality of ultraviolet LEDs 175a, 175b, 175c, 175d, 175e, and 175f are mounted on a substrate 174.

The outer plate 25b, which constitutes the lowermost section cover plate 25 together with the inner plate 25a described above, has a rectangular dish shape with an open upper side, as shown in FIGS. 12 and 13. Four locking protrusions 29 are provided on the inner surface of the outer plate 25b so as to correspond to the four roller catches 27 provided on the outer surface of the inner plate 25a. Then, as shown in FIG. 14, the inner surface of the outer plate 25b is directed toward the outer surface of the inner plate 25a fixed to the back plate 18 (area 18d), and the upper edge of the outer plate 25b is connected to the connecting portion 25aa of the inner plate 25a. Align the outer plate 25b with the inner plate 25a while making contact with the outer edge of the outer plate 25b. In this state, the four locking projections 29 (see FIG. 13) of the outer plate 25b fit into the four roller catches 27 of the inner plate 25a, and the inner plate 25a and the outer plate 25b are integrated. As shown in FIG. 15, the lowermost section cover plate 25 is constituted by an inner plate 25a and an outer plate 25b that are integrated. Three intake ports 15a, 15b, and 15c are formed on the lower side and both sides of the lowermost section cover plate 25 as a gap between the inner plate 25a and the outer plate 25b.

By fixing the lowermost compartment cover plate 25 (inner plate 25a, outer plate 25b) to the rear plate 18 so as to cover the region 18d of the rear plate 18 in this way, the lowermost compartment cover plate 25 and the rear plate 18 Specifically, between the outer plate 25b and the inner plate 25a and between the inner plate 25a and the region 18d of the back plate 18, a space as the lower ventilation passage 13pth is formed in the lower part. Block 13 is configured. Then, the purifier 17 including the filter unit 171, the photocatalyst support plate 172, and the light source plate 173 arranged to face the photocatalyst support plate 172 is arranged in the lower ventilation passage 13pth.

When the air purifying device 10 having the above-described structure is installed in a room (for example, a commercial facility such as a large-scale retail store), for example, as shown in FIG. , 15b, 15c are a quarter height (h1) from the floor 200 and a half height (h2) from the floor 200 in the space (height H) between the floor 200 and the ceiling 210. It is located in the intermediate layer portion Em between the two. Further, the two air outlets 14a and 14b of the upper block 11 are connected to the upper part Eu of the quarter (height H) on the ceiling 210 side in the space (height H) between the floor 200 and the ceiling 210, especially the upper part Eu. It is located in the upper half range Euu in the height direction.

For example, in a facility space where the height H of the ceiling 210 from the floor 200 is H = 3.85 m, the middle layer portion Em is from the height h1 = 0.963 m from the floor 200 to the height h2 = 1.925 m from the floor 200. Can be set as an area up to a height of . Further, the upper part Eu can be set as an area from the ceiling 210 to 0.9623 m below, and the upper half range Euu can be set as an area from the ceiling 210 to 0.481 m.

As described above, in the air purifying device 10 installed in a room (for example, a commercial facility such as a large-scale retail store), the operation of the blower 16 causes the air in the middle layer portion Em of the room space to flow through the three intake ports 15a, The air is introduced from 15b and 15c, and is purified by the cleaner 17 while passing through the lower ventilation passage 13pth of the lower block 13. Then, the purified air flows from the lower ventilation passage 13pth of the lower block 13 through the duct 12dc of the middle block 12 to the upper ventilation passage 11ph of the upper block 11. The purified air flowing into the upper ventilation passage 11pth flows through the two air outlets 14a and 14b into the upper part Eu, especially above it, parallel to the surface of the ceiling 110 and along the surface of the ceiling 210. It is blown out within half the range Euu.

By purifying the air in the indoor space using the air purifying device 10 as described above, the temperature environment is relatively stable, but the middle layer part Em where many minute substances such as mold spores can float. The air collected from the air is purified. Then, the purified air whose temperature is relatively stable is released in parallel along the ceiling 210, where air tends to stagnate nearby. In this way, fine particles such as mold spores are removed and air whose temperature is relatively stable is supplied to the surface of the ceiling 210, so that air can be effectively removed from indoor spaces where people and objects frequently move. Fine particles such as mold spores can be removed (purified), and air stagnation near the ceiling 210 can be prevented to prevent dew condensation on the ceiling 210, resulting in mold growth on the ceiling 210. can be effectively prevented.

In the air purifying device 10 having the above-described structure, by changing the length of the back plate 18, the length (vertical direction) of the middle block 12 can be changed. Specifically, by changing the length of the back plate 18, the middle block 12 can be configured by only one partial block 12a out of the three partial blocks 12a, 12b, 12c, or by two partial blocks 12a, 12b. can do.

Furthermore, the air cleaning device 10 can be constructed by removing the entire middle block 12 and directly joining the upper block 11 and lower block 13 as shown in FIG.

In this case, the length of the back plate 18 is changed to correspond to the area 18d. The lowermost section cover plate 25 is coupled to the upper block 11 so that the fitting bracket 26 is engaged with the connecting portion 11c formed at the lower edge of the rising portion 11a of the upper block 11. The lowermost section cover plate 25 is fixed to the back plate 18 in a state where the lowermost section cover plate 25 covers the back plate 18 (corresponding to the region 18d). In this state, the upper ventilation passage 11pth formed in the upper block 11 and the lower ventilation passage 13pth formed in the lower block 13 are in communication.

In the air purifying device 10 described above, since the length of the middle block 12 can be changed, the air intake ports 15a, 15b, 15c formed in the lower block 13 and the upper block 11 can be adjusted according to the length of the middle block 12. The distance between the formed blow-off ports 14a and 14b can be changed. Furthermore, since the middle block 12 itself can be removed and the upper block 11 and the lower block 13 can be directly connected, the lower block 13 can be formed differently depending on whether the middle block 12 is included or not. The distance between the air intake ports 15a, 15b, 15c and the air outlets 14a, 14b formed in the upper block 11 can be changed.

According to the air purifying device 10 described above, the distance between the intake ports 15a, 15b, 15c and the air outlets 14a, 14b can be varied, so that air at an appropriate height can be supplied to indoor spaces of various heights. It will be possible to introduce and purify the air, and then release the purified air to an appropriate height.

In the air purifying device 10 described above, the maximum number (predetermined number) of the partial blocks 12a, 12b, 12c constituting the middle block 12 is three, but is not limited to this, and may be four or more. Also, there may be two or less.

Further, the middle block 12 may be configured as a fixed length block. Even in this case, the intake ports 15a, 15b, 15c formed in the lower block 13 and the outlet 14a formed in the upper block 11, depending on whether the middle block 12 is included or not. , 14b can be changed.

In the lowermost section cover plate 25 described above, by pulling the outer plate 25b forward, the four engaging protrusions 29 are pulled out from the four roller catches 27, and the outer plate 25b can be removed from the inner plate 25a. As a result, the filter unit 171 detachably provided on the inner plate 25a is exposed, and in this state, the filter unit 171 can be replaced. Although not shown, a sensor (for example, a microswitch) is provided that outputs a detection signal depending on whether or not the outer plate 25b is attached to the inner plate 25a. Power supply to the ultraviolet LEDs 175a to 175f of the light source plate 173 is controlled based on the detection signal of the sensor. Thereby, for example, when the outer plate 25b is removed for maintenance (including replacement of the filter unit 171 described above), the ultraviolet rays (excitation light) irradiated to the photocatalyst can be automatically stopped. Moreover, if the outer plate 25b is attached to the inner plate 25a after maintenance is completed, the photocatalyst is automatically irradiated with ultraviolet rays (excitation light), allowing the purifier 17 to return to its normal state.

Further, it is also possible to provide a display indicating that the outer plate 25b is properly attached to the inner plate 25a and that the photocatalyst is irradiated with excitation light (ultraviolet light) from the light source plate 173.

The configuration of the purifier 17 is not limited to that described above. Even if it is only the filter plate 171 (for example, a HEPA filter) that removes fine particles, or even if it is only a combination of the photocatalyst support plate 172 (photocatalyst support) and the light source plate 17 (light source), the air Other members that can be cleaned may also be used. Furthermore, the structure of the purifier 17 is not limited to that shown in FIGS. 8, 9, 10, and 11.

The air outlets formed in the upper block 11 are not limited to the two air outlets 14a and 14b having the shapes described above, and the air intake ports formed in the lower block 13 may also have the shapes described above. It is not limited to three intake ports 15a, 15b, and 15c.

Further, the shape of the entire supply air purifying device 10 is not limited to the shape shown in FIGS. 1 and 2, and may be any structure in which an upper block, a middle block, and a lower block are arranged in the vertical direction.

Further, the middle block 12 and the lower block 13 are not limited to the structure configured with respect to the back plate 18, and instead of using a common back plate 18, the middle block 12 and the lower block 13 have a common member. It can also be configured as a separate entity.

Although the embodiments of the present invention have been described above, the embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments described above can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention.

The air purifying device according to the present invention can introduce and purify air at an appropriate height in indoor spaces of various heights, and can discharge the purified air at an appropriate height, thereby improving air purification. It is useful as a device.

10 Air purifier 11 Upper block 11a Rising part 11b Projecting part 11c Connecting part 11pth Upper ventilation passage 12 Middle block 12a, 12b, 12c Partial block 12dct Duct 13 Lower block 13pth Lower ventilation passage 14a, 14b Air outlet 15a, 15b, 15c Intake port 16 Air blower 17 Purifier 171 Filter unit 172 Photocatalyst support plate 173 Light source plate 174 Substrate 175a to 175f Ultraviolet LED
18 Rear plate 18a to 18d Area 20 Compartment cover plate 21 Fitting bracket 22, 23 Connection bracket 25 Lowermost compartment cover plate 25a Inner plate 25aa Connecting portion 25b Outer plate 26 Fitting bracket 27 Roller catch tool 28 Mounting plate 29 Locking protrusion Body 200 Floor 210 Ceiling 220 Column

Claims (7)

An upper block formed with an air outlet that releases air forward;
a middle block that is provided to hang down from the upper block and is formed with a duct that extends from an end on the upper block side to the other end;
a lower block that is connected to an end of the middle block on the side opposite to the upper block and has an intake port formed therein;
The upper block is formed with an upper ventilation passage that communicates with the duct of the middle block and continues to the air outlet,
A lower ventilation passage is formed in the lower block and communicates with the duct of the middle block and continues to the intake port,
Further, a blower provided in the upper block, which introduces air from the intake port, and discharges the air from the outlet through the lower ventilation passage, the duct, and the upper ventilation passage;
a purifier that is provided in the lower block and that purifies the air introduced from the intake port into the lower ventilation passage;
The upper block and the lower block have a structure that can be combined so that the upper ventilation passage and the lower ventilation passage communicate with each other. The air purifying device according to claim 1, wherein in the upper block, the air outlet opens in a direction perpendicular to an extending direction of the middle block. The air cleaning device according to claim 1 or 2, wherein the middle block is constituted by one or more partial blocks out of a predetermined number of partial blocks that can be connected and separated. a back plate provided to hang down from the upper block;
3. Each of the one or more partial blocks of the middle block includes a compartment cover plate coupled to the back plate so as to cover the back plate, and forming a space as the duct together with the back plate. The air purifying device described. The lower block is coupled to the compartment cover plate of the middle block and to the rear plate to form a space as the lower ventilation passage with the rear plate, and a lowermost compartment cover in which the air intake port is formed. The air cleaning device according to claim 4, comprising a plate. The purifier includes a photocatalyst carrier that supports a photocatalyst, and a light source that irradiates the photocatalyst with excitation light,
The photocatalyst carrier is provided on the inner surface side of the lowermost compartment cover plate,
The air purifying device according to claim 5, wherein the light source is provided in a portion of the back plate covered by the lowermost compartment cover plate so as to face the photocatalyst carrier. The purifier has a filter that removes fine particles,
The air purifying device according to claim 5 or 6, wherein the filter is provided on the lowermost compartment cover plate.

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