JP2007029283A - Air cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air cleaner which is equipped with a filter with a large filtering area despite of its thin shape and can effectively clean the large volume of the polluted air. <P>SOLUTION: The air cleaner is equipped with a laterally thin and vertically long main body 1 of a case and a front section unit 2 to plug a front aperture of the main body 1 of the case. A vertically long suction aperture 18 to occupy almost all of a panel surface is opened in the front section unit 2 and a three-dimensionally structured filter 5 equipped with at least two or more filtering faces 20a is disposed at the inner surface side of the suction aperture. An outer surface of the suction aperture 18 is covered by a three-dimensionally structured suction grille 27 equipped with two or more suction apertures 30. Fan units 4 to discharge the filtered air toward the back outer surface of the main body 1 of the case are disposed at four top and bottom positions of a back wall of the main body 1 of the case facing to a projection end of the filter 5. A vertically long light source 6 is disposed in the filter 5 to excite a photocatalyst material carried by a filter element 20. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an air cleaner used in a pachinko parlor, a karaoke booth, a tatami room in a restaurant, a personal computer booth in an internet cafe, or a general household.

  For example, the ambient air of a pachinko gaming machine is contaminated with cigarette smoke or sidestream smoke generated mainly by the smoking behavior of gaming machine users, or floating dust derived from tobacco. Of course, smokers themselves have mainstream smoke and exhaled smoke, but sidestream smoke, in particular, contains a large amount of harmful substances with carcinogenic properties and has public health problems.

  For example, Patent Document 1 and Patent Document 2 disclose air cleaners for purifying tobacco smoke as described above. In the former document, a narrow and vertically long case disposed on one side of a pachinko machine, a sirocco fan unit disposed in the case, a filter for removing dust, an electrostatic air purifier, etc. It constitutes a purifier. There, the contaminated air drifting in front of the pachinko machine is sucked in from the suction port at the lower front of the case, and the purified air is sent out from the outlet opening at the upper front of the case.

  The air purifier of Patent Document 2 is arranged above the pachinko machine, and after purifying the contaminated air sucked by the cross-flow fan unit at the filter portion, the purified air is disposed above the air purifier. And discharge from the left and right sides. The filter part is a net-shaped front filter that captures relatively large suspended dust such as fiber waste and dust, a non-woven fabric that captures particulates contained in tobacco smoke, and a honeycomb that adsorbs odorous particulates contained in contaminated air It is composed of multiple layers of activated carbon.

JP-A-10-15220 (paragraph numbers 0008 to 9, FIG. 7) Japanese Patent Laid-Open No. 10-165624 (paragraph number 0014, FIG. 2)

  In the air cleaner of Patent Document 1, since the contaminated air is purified by the filter that removes dust and the electrostatic air purification device, the suspended dust can be almost removed, but there is a limit to the purification action of the contaminated air. Tobacco-derived harmful substances such as cannot be removed sufficiently. A polluted air inlet is opened at the upper front of the case and a purified air outlet is opened at the lower front of the case, so the polluted air suction area is limited to the periphery of the inlet, and the front of the pachinko machine The contaminated air drifting in the vicinity cannot be sucked in effectively.

  In the air purifier of Patent Document 2, the contaminated air is purified by the pre-stage filter, the nonwoven fabric that captures the particulates, and the honeycomb activated carbon that adsorbs the odorous particulates contained in the contaminated air. Although fine particles and odorous fine particles can be removed, it cannot be said that it is sufficient yet, and as in Patent Document 1, there is a limit to the ability to purify harmful substances derived from tobacco.

  Filtering the contaminated air with the pre-stage filter, non-woven fabric, and honeycomb-like activated carbon that are arranged in layers, the filtration structure is complicated, and the filtration elements need to be frequently cleaned and replaced, increasing maintenance costs. Inevitable. As each filtration element is clogged, the ventilation resistance increases. However, the ventilation efficiency is low because the ventilation resistance is as much as the filtration elements are stacked. In any of the air purifiers of Patent Documents 1 and 2, the polluted air suction range is limited to the peripheral portion of the suction port. For example, in the passage portion away from the pachinko gaming machine arranged adjacent to the air purifier. Can't purify drifting tobacco smoke.

  An object of the present invention is to provide an air purifier that has a filter with a large filtration area and can effectively purify a larger amount of contaminated air, despite being a thin air purifier. The objective of this invention is providing the air cleaner which can remove | eliminate the harmful substance derived from a tobacco reliably while being able to inhale the surrounding air of an air cleaner effectively. An object of the present invention is to provide an air purifier that can easily replace a filter or the like with less labor.

  The air purifier of the present invention includes a case body 1 that is narrow and long in the left and right direction, and a front unit 2 that closes the front opening of the case body 1, and a fan unit 3 for blowing air inside the case body 1. 4 and a filter 5 are accommodated. A vertically long suction port 18 occupying most of the front surface of the unit is opened on the front surface of the front unit 2, and a three-dimensional filter 5 having at least two or more filtration planes 20 a is disposed on the inner surface side thereof. Fan units 4 for sending filtered air toward the rear outer surface of the case body 1 are arranged at a plurality of locations on the rear wall of the case body 1 facing the protruding end of the filter 5.

  Another air purifier of the present invention includes a case body 1 that is narrow and long in the left and right direction, and an upper panel 41 and a front unit 2 that respectively close the front opening of the case body 1. The fan units 43 and 44 for blowing and the filter 5 are accommodated. First and second centrifugal fan units 43 and 44 for sending filtered air toward the front outer surface of the case body 1 are arranged above and below the inner surface of the upper panel 41. On the front surface of the front unit 2, a suction port 18 that occupies most of the front surface of the unit is opened, and a three-dimensional filter 5 having at least two or more filtration planes 20 a is mounted inside the suction port 18. The case body 1 has a first passage 51 communicating with the suction port 50 of the first centrifugal fan unit 43 located on the upper side and a second passage communicating with the suction port 50 of the second centrifugal fan unit 44 located on the lower side. The passage 52 is partitioned by a partition wall 53, and both passages 51 and 52 face the upper half and the lower half of the filter 5.

  The filter 5 includes a filter element 20 formed of a honeycomb material containing activated carbon fibers, a filtration frame 21 that supports upper and lower ends of the filter element 20, and a photocatalytic substance carried on the filter element 20. A vertically long light source 6 for exciting the photocatalytic substance is disposed in a filtration chamber R defined between the suction port 18 of the front unit 2 and the filter element 20. The filter 5 and the light source 6 mounted on the inner surface of the front unit 2 can be removed from the case body 1 together with the front unit 2.

  The filter element 20 accommodated in the case body 1 is formed in a V-shaped cross section. A ventilation space is secured between the left and right filtration planes 20 a of the filter element 20 and both side walls of the case body 1. The outer surface of the suction port 18 is covered with a three-dimensional suction grille 27 having a plurality of suction openings 30.

  The first centrifugal fan unit 43 and the second centrifugal fan unit 44 are disposed adjacent to the case body 1 in the vertical direction with the suction ports 50 opening in opposite directions.

  The air cleaner of the present invention has a vertically long case body 1 and a front unit 2 disposed on the front surface of the case body 1 as a housing, and a fan unit 3 and 4 for blowing air and a filter inside the case body 1. 5 was accommodated. In addition, a vertically long suction port 18 occupying most of the front surface of the unit was opened on the front surface of the front unit 2 to increase the opening area of the suction port 18. Furthermore, by arranging the three-dimensional filter 5 having two or more filtration planes 20a on the inner surface side of the suction port 18, the filtration area of the filter 5 can be effectively utilized while using the internal space of the narrow case body 1. Can be made much larger than conventional air purifiers. In addition, a plurality of fan units 4 are arranged on the rear wall of the case body 1 facing the protruding end of the filter 5.

  Thus, according to the air cleaner provided with the suction port 18 having a large opening area and the filter 5 having a large filtration area, the ventilation resistance at the suction port 18 and the ventilation resistance at the filter 5 can be reduced, respectively. Since the suction pressure of the fan unit 4 disposed on the rear wall of the main body 1 is applied to the filter element 20 with the shortest distance, the contaminated air can be sucked in effectively, so that a larger amount of pollution is produced compared with the conventional air cleaner. An air purifier with excellent purifying capability that can effectively purify by sucking air is obtained.

  Since the filter element 20 is less likely to be clogged by the large filtration area of the filter 5, the trouble of cleaning and replacement of the filter 5 can be greatly reduced, and the air cleaner can be used continuously for a long time in a maintenance-free state. Only maintenance costs can be reduced. There is also an advantage that the air around the suction port 18 can be sucked in a wide range as the opening area of the suction port 18 is large.

  Another air cleaner according to the present invention includes a case body 1 having a narrow left and right width and an upper panel 41 and a front unit 2 arranged on the front surface of the case body 1, and a fan for blowing air inside the case body 1. The units 43 and 44 and the filter 5 were accommodated. In addition, the suction port 18 occupying most of the front surface of the unit was opened on the front surface of the front unit 2 to increase the opening area of the suction port 18. Further, a three-dimensional structure filter 5 having at least two or more filtration planes 20a is arranged on the inner surface side of the suction port 18, and the filtration area of the filter 5 accommodated in the case body 1 having a narrow left and right width is conventionally reduced. It can be made larger than the air purifier.

  Thus, according to the air cleaner provided with the suction port 18 having a large opening area and the filter 5 having a large filtration area, the ventilation resistance at the suction port 18 and the ventilation resistance at the filter 5 can be reduced, respectively. Compared with an air cleaner, polluted air can be effectively sucked in as much as the ventilation resistance is small.

  First and second centrifugal fan units 43 and 44 are arranged above and below the inner surface of the upper panel 41, and a first passage 51 for the first centrifugal fan unit 43 and a second centrifugal fan unit are disposed inside the case body 1. According to the air blowing structure in which each of the passages 51 and 52 faces the upper half and the lower half of the filter 5 after partitioning the second passage 52 for 44, a sufficient amount is provided by the upper and lower fan units 43 and 44. The air can be sucked into the inside of the case body 1 and filtered by the filter 5 and combined with the low ventilation resistance as described above, a larger amount than the conventional air purifier. An air purifier that can effectively purify contaminated air and has an excellent purifying capacity can be obtained.

  Since the divided first and second passages 51 and 52 face the upper half and the lower half of the filter 5, the suction pressure of the fan units 43 and 44 is evenly distributed with respect to the filtration plane 20a of the filter 5. Can act. Therefore, it is possible to eliminate the local clogging of the filter element 20 and reduce the trouble of cleaning and replacement of the filter 5, thereby reducing the maintenance cost.

  The filter element 20 is formed of a filter element 20 formed of a honeycomb material containing activated carbon fibers and a filter frame 21 that supports both upper and lower ends of the filter element 20, and a photocatalytic substance is supported on the filter element 20 and surrounded by the filter element 20. According to the air cleaner in which the vertically long light source 6 that excites the photocatalytic substance is arranged in the filtration chamber R, organic substances and harmful substances such as dust, tobacco smoke, and pollen trapped by the filter element 20 can be removed. In addition to being decomposed by the photocatalytic substance, it is possible to adsorb odorous components and the like by the activated carbon fiber. Therefore, an air cleaner capable of reliably removing harmful substances derived from tobacco and sending out sufficiently purified air can be obtained.

  Since the filter 5 and the light source 6 are mounted on the inner surface of the front unit 2 so that the filter 5 and the light source 6 can be removed from the case body 1 together with the front unit 2, the front unit 2 is removed from the case body 1. Thus, the filter 5 and the light source 6 can be cleaned and replaced while being exposed on the outer surface of the case body 1, and the maintenance work including not only the filter 5 and the light source 6 but also other devices can be performed. This can be done easily with little effort.

  When the filter element 20 is formed in a V-shaped cross section, the filter 5 having a large filtration area can be configured at a low cost while having a simple three-dimensional structure. Further, since a triangular ventilation space is secured between the left and right filtration planes 20a of the filter element 20 and both side walls of the case body 1, the suction pressures of the fan units 3 and 4 are evenly distributed over the entire filtration plane 20a. It can be filtered and purified while effectively sucking a larger amount of contaminated air.

  According to the air cleaner in which the outer surface of the suction port 18 is covered with a three-dimensional suction grille 27 having a plurality of suction openings 30, not only the front space of the suction port 18 but also the left and right spaces of the suction port 18 are included. Since air can be sucked in from all the spaces on the grill peripheral surface, polluted air including tobacco smoke can be sucked and purified effectively.

  When the first centrifugal fan unit 43 and the second centrifugal fan unit 44 are arranged adjacent to each other in the upper and lower sides of the case body 1 with their suction ports 50 opened in opposite directions, the suction of the fan units 43 and 44 Since the facing distance between the opening 50 and the side wall of the case can be increased, even when the lateral width of the case body 1 is small, the air suction efficiency of each of the fan units 43 and 44 is reliably prevented from being reduced. Air blowing efficiency can be improved.

(Example 1) FIG. 1 thru | or FIG. 4 shows Example 1 of the air cleaner which concerns on this invention. In FIG. 2, the air purifier is configured with a case body 1 having a narrow left and right width and a front unit 2 detachably mounted on the front surface of the case body 1 as a housing. The fan units 3 and 4 for blowing air are housed, and a filter 5 and an ultraviolet lamp (light source) 6 (see FIG. 1) are incorporated in the front unit 2.

  The case body 1 is formed in a thin box shape whose front surface is opened by a steel plate case 1a having a U-shaped cross section formed of a thin steel plate and an end plate 1b that closes the upper and lower openings of the steel plate case 1a. The case body 1 has a left-right width of 50 mm, a depth of 170 mm, and a height of 810 mm. Air outlets 7 (see FIG. 1) are opened at four locations on the upper and lower sides of the rear wall of the steel plate case 1a, and the fan units 4 are mounted and fixed on the inner surfaces of these air outlets 7, respectively.

  In the upper part of the inner surface of the case main body 1, one fan unit 3, a wind guide case 8 and a blowout case 9 made of a plastic molded product, a power supply unit 10 for the ultraviolet lamp 6, and the like are arranged. The power supply unit 10 is disposed in a space above the air guide case 8. As shown in FIG. 3, the space in the air guide case 8 is bent downward, and its inlet is directed above the protruding end of the filter 5. Most of the blowout case 9 protrudes forward from the front opening of the case body 1. Reference numeral 11 denotes an LED for lighting and displaying the operation state of the air cleaner.

  The four fan units 4 provided on the rear wall of the case send filtered air toward the rear outer surface of the case body 1, whereas the upper fan unit 3 filters the filtered air toward the outer surface of the front unit 2. Send a part of. The fan units 3 and 4 are made of commercially available unit parts in which an axial flow type fan 13 and a motor 14 are incorporated in a case 12, and the case 12 is fastened to the steel plate case 1 a and the air guide case 8 with screws. It is attached. The end plate 1b is made of an injection-molded product, and mounting rails 15 having an L-shaped cross section project from the left and right sides near the front end of the outer surface.

  The front unit 2 is composed of a panel frame 2a having a U-shaped section that is long in the vertical direction and formed of a thin steel half, and a plastic end wall 2b that covers both the upper and lower ends of the panel frame 2a. A vertically long suction port 18 occupying most of the panel surface is opened on the front surface of the panel frame 2a, and an air outlet 19 for the fan unit 3 is opened above the suction port 18. The suction port 18 includes two main openings 18a that are long in the vertical direction and small openings 18b that are adjacent to the top and bottom of the main opening 18a. A socket 24 for the ultraviolet lamp 6 is mounted using a wall surface between the main opening 18a and the small opening 18b. The end wall 2b is made of an injection-molded product similar to the end plate 1b. A handle 25 is formed at the front end of the end wall 2b, and mounting rails 26 continuous to the mounting rail 15 are formed on the left and right sides of the outer surface.

  The filter 5 includes a filter element 20 formed of a honeycomb material including activated carbon fibers, a filtration frame 21 that supports upper and lower ends of the filter element 20, a presser frame 22 that fixes upper and lower ends of the filter element 20 to the filtration frame 21, and the like. Consists of. By attaching the filter element 20 to the filtration frame 21 and fixing its upper and lower ends with the holding frame 22, the filter element 20 is held in a V-shaped cross section. Thereby, the filter 5 having a three-dimensional structure having a large filtration area and having two filtration planes 20a (see FIG. 1) is obtained. The presser frame 22 is inserted into and engaged with the proximal end portion of the filtration frame 21 to maintain the mounting posture. When the filter element 20 is replaced, it can be removed with a single touch.

  The filter element 20 carries a photocatalytic substance that decomposes and renders organic substances harmless. Specifically, titanium oxide (photocatalytic substance) powder is mixed with a liquid binder, and the obtained coating liquid is sprayed onto the surface of the filter element 20 with a coating gun, and then dried to carry the titanium oxide on the filter element 20. . The filtration frame 21 is formed of a press fitting having a V-shape in plan view, and a base end portion thereof is fastened and fixed to the inner surface of the panel frame 2a.

  In order to excite and activate the titanium oxide supported on the filter element 20, the ultraviolet lamp 6 is disposed in the filtration chamber R defined between the suction port 18 and the filter element 20. The ultraviolet lamp 6 is composed of a round tube lamp that is long in the vertical direction, similar to a fluorescent lamp, and its upper and lower ends are supported by sockets 24.

  When the filter 5 and the ultraviolet lamp 6 are attached to the inner surface of the front unit 2 as described above, the filter 5 and the ultraviolet lamp 6 are removed from the case body 1 by removing the front unit 2 from the case body 1. Therefore, the replacement work of the filter element 20 and the ultraviolet lamp 6 and the maintenance work of the fan units 3 and 4 can be easily performed. The filter element 20 can be regenerated by washing with water approximately every 6 months, and its lifetime is 2 years or more.

  In a state where the front unit 2 is attached to the case body 1, the four fan units 4 face the protruding end of the filter element 20 with a small interval therebetween, and the suction pressure acts on the filter element 20 with the shortest distance. The suction air can be filtered by the left and right filtration planes 20a having a large V-shaped cross section. Further, since a triangular ventilation space is secured between the left and right filtration planes 20a and both side walls of the case body 1, the suction pressure of the fan units 3 and 4 is applied evenly over the entire filtration plane 20a. It can be filtered and purified while effectively sucking a larger amount of contaminated air. Organic substances such as dust, tobacco smoke, and pollen trapped in the filter element 20 are decomposed by titanium oxide or odorous components are adsorbed by the activated carbon fiber, so that the air sent from the outlets 7 and 19 is sufficient. Has been purified.

  On the outer surface of the front unit 2, a three-dimensional suction grille 27 that covers the outer surface of the suction port 18 and an outlet grille 28 that covers the outer surface of the outlet 19 are mounted. The suction grill 27 is made of a plastic molded product whose outer shape is curved outwardly, and includes three suction openings 30 along the curved peripheral surface, and a vertically long grill frame 31 that divides the adjacent suction openings 30 in the circumferential direction. And are formed alternately. Thus, when the suction grille 27 has a three-dimensional structure and the suction opening 30 is arranged along the grille circumferential surface, not only the front space of the suction port 18 but also all the spaces on the grille circumferential surface including the left and right spaces of the suction port 18. Since air can be inhaled, polluted air including tobacco smoke can be effectively purified.

  The blowing grill 28 is made of a flat plastic molded product, and a blowing opening 32 is formed at a position facing the outlet opening of the blowing case 9. In this way, when a part of the purified air is blown out forward of the case body 1, for example, as shown in FIG. 4, when the air purifier is disposed between adjacent pachinko gaming machines 34, the air Purified air can be supplied to the player in the front side space of the cleaner.

  Most of the purified air is sent to the inside of the gaming machine booth 35 to which the pachinko gaming machine 34 is attached, and flows out from the upper surface opening to the passage. When the air cleaner is mounted in the gaming machine booth 35 with the panel frame 2a of the front unit 2 exposed, replacement work, maintenance work, and the like can be performed more easily. The mounting rails 15 and 26 provided in the case main body 1 and the front unit 2 are provided in order to simplify the loading and unloading of the air cleaner with respect to the gaming machine booth 35.

(Embodiment 2) Figs. 5 to 8 show another embodiment 2 of the air cleaner according to the present invention. In the second embodiment, the same reference numerals are given to substantially the same members as those in the first embodiment, and the description thereof is omitted. In FIG. 5, the air purifier has a vertically long case body 1, an upper panel 41 that closes the front opening of the case body 1, and a lower front unit 2 as a casing. Inside the main body 1, there are first and second centrifugal fan units (fan units) 43 and 44 for sending filtered air toward the front outer surface of the case main body 1, a filter 5, an ultraviolet lamp (light source) 6, and the like. It is housed. The vertical dimension of the lower front unit 2 is set to be half or more (a little less than 60%) of the vertical dimension of the case body 1 and is larger than the vertical dimension of the upper panel 41.

  The case body 1 is formed in a thin box shape whose front surface is opened by a steel plate case 1a having a U-shaped cross section and an end plate 1b that closes the upper and lower openings of the steel plate case 1a. A handle 25 is formed integrally with the end plate 1b. The width of the case body 1 is smaller (40 mm) than that of the first embodiment, but the depth and height are the same. In the air cleaner in the first embodiment, most of the purified air is sent to the back side of the case body 1, but in the air cleaner according to the second embodiment, all of the purified air is supplied to the case body 1. Send to the front side. For this purpose, the air outlets 7 are opened at two upper and lower portions of the upper panel 41, and the first and second centrifugal fan units 43 and 44 are arranged on the inner surfaces of the air outlets 7.

  As shown in FIG. 6, the centrifugal fan units 43 and 44 are made of commercially available unit parts in which a centrifugal fan 48 and a motor 49 are incorporated in a case 47, and a suction port 50 is opened on one side of the case 47. It is. As shown in FIG. 8, the upper first centrifugal fan unit 43 is arranged such that the suction port 50 faces the left side wall of the steel plate case 1 a, and the blower port is connected to the blower outlet 7 through the blowout duct 46. Therefore, it is positioned in the back of the case by the amount of the blowout duct 46. The lower second centrifugal fan unit 44 is arranged such that the suction port 50 faces the right side wall of the steel plate case 1 a, and the air blowing port is directly connected to the air outlet 7.

  When the upper and lower centrifugal fan units 43 and 44 are arranged above and below with the respective suction ports 50 in opposite directions as described above, the distance between the suction ports 50 of the fan units 43 and 44 and the case sidewalls is opposed to each other. Can be increased (approximately 10 mm), so that even if the left and right width dimensions of the case body 1 are small, the air suction efficiency of the fan units 43 and 44 is reliably prevented from decreasing, and the blowing efficiency of purified air is improved. it can.

  A first communicating with the suction port 50 of the first centrifugal fan unit 43 is provided inside the case body 1 so that the suction pressures of the centrifugal fan units 43 and 44 adjacent to each other on the upper and lower sides are evenly applied to the filter 5. A passage 51 and a second passage 52 communicating with the suction port 50 of the second centrifugal fan unit 44 are formed. Specifically, as shown in FIG. 6, a partition wall 53 is provided between the upper half of the filter 5 and the second centrifugal fan unit 44 on the lower side so that the space in the case is separated from the first passage 51 on the front side and the rear side. The second passage 52 is divided into two, and both passages 51 and 52 face the upper half and the lower half of the filter 5.

  The front unit 2 is composed of a frame having a U-shaped section that is long in the vertical direction, and a vertically long suction port 18 that occupies most of the frame surface is opened on the front surface thereof. The suction port 18 includes a main opening 18a that is vertically long and a small opening 18b that is adjacent to the top and bottom of the main opening 18a. The socket 24 for the ultraviolet lamp 6 is mounted using the wall surface between the main opening 18a and the small opening 18b.

  The filter 5 has basically the same structure as the filter 5 of the previous embodiment, and is configured by a filter element 20 having a V-shaped cross section, a filtration frame 21, a presser frame 22, and the like. As shown in FIG. 6, the upper and lower filtration frames 21 have openings 54, and the outer surfaces of both openings 54 are covered with a wind guide cover 55. Since each wind guide cover 55 is opened facing the upper and lower small openings 18b, the air before filtration is sucked into the filtration chamber R from both the main opening 18a and the small openings 18b. The air sucked into the filtration chamber R also serves to cool the ultraviolet lamp 6. The filter element 20 carries a photocatalytic substance, and an ultraviolet lamp 6 is disposed in the filtration chamber R to excite the photocatalytic substance.

  A blowout grill 28 that covers the outer surface of the blowout port 7 is mounted on the upper panel 41, and a three-dimensional suction grille 27 that covers the outer surface of the suction port 18 is mounted on the outer surface of the front unit 2. The suction grille 27 has the same cross-sectional structure as the suction grille 27 described in the first embodiment, but has a small vertical dimension. Both grills 27 and 28 are detachably attached.

  The air cleaners described in the first and second embodiments can be used by being arranged between the pachinko gaming machines 34 as described with reference to FIG. 4, but as shown in FIG. When it is fixed on 60 and can be made independent, it can be used in a karaoke booth, a tatami room in a restaurant, a personal computer booth in an internet cafe, or a general home. If necessary, as shown in FIG. 9B, the air purifier can be used in a horizontally long posture supported by a bracket 61 fixed to a wall or a ceiling.

  In addition to the embodiment described above, the filter element 20 can be formed into a W-shaped cross section, a U-shaped cross section, or a trapezoidal cross section having a filtration plane 20a at the tip, in addition to a V-shaped cross section. The filtration plane 20a does not need to be a flat surface, and can be formed of an outwardly bulged or indented curved surface. Of course, the filtration surface folded into a continuous chevron can be formed in a V-shaped cross section as a whole.

  As the photocatalytic substance, strontium titanate, zinc oxide, tungsten oxide, or the like can be used alone or in combination of two or more kinds in addition to titanium oxide. As the light source 6, a germicidal lamp, an ozone ray lamp, a cold cathode tube, a light emitting diode, or the like can be used depending on the difference in the photocatalytic substance.

It is the sectional view on the AA line in FIG. It is the disassembled perspective view which fractured | ruptured a part of air cleaner. It is a vertical side view of an air cleaner. It is a front view which shows the usage example of an air cleaner. It is a perspective view which shows the use condition of the air cleaner of Example 2. FIG. It is a vertical side view of the air cleaner of Example 2. It is the BB sectional view taken on the line in FIG. It is CC sectional view taken on the line in FIG. It is a perspective view which shows another example of use of an air cleaner.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case body 2 Front part 3 * 4 Fan unit 5 Filter 6 Ultraviolet lamp 18 Suction port 20a Filtration plane R Filtration chamber

Claims (6)

A vertically long case body (1) and a front unit (2) for closing the front opening of the case body (1),
An air purifier in which a fan unit (3), (4) for blowing air and a filter (5) are housed inside the case body (1),
A three-dimensional filter (5) having a vertically long suction port (18) that occupies most of the front of the unit in front of the front unit (2) and having at least two filtration planes (20a) on the inner surface side. Is placed,
Air in which fan units (4) for sending filtered air toward the rear outer surface of the case body (1) are arranged at a plurality of locations on the rear wall of the case body (1) facing the protruding end of the filter (5). Cleaner. A vertically long case main body (1), and an upper panel (41) and a front unit (2) for closing the front opening of the case main body (1), respectively,
An air purifier in which a fan unit (43), (44) for blowing air and a filter (5) are housed inside the case body (1),
First and second centrifugal fan units (43) and (44) for sending filtered air toward the front outer surface of the case body (1) are arranged above and below the inner surface of the upper panel (41),
A three-dimensional filter having a suction port (18) that occupies most of the front surface of the front unit (2), and at least two filtration planes (20a) inside the suction port (18) ( 5) is installed,
A first passage (51) communicating with the suction port (50) of the first centrifugal fan unit (43) located on the upper side and a second centrifugal fan unit (44 located on the lower side inside the case body (1). ) And a second passage (52) communicating with the suction port (50) is partitioned by a partition wall (53),
Both air passages (51) and (52) face the upper half and lower half of the filter (5). The filter (5) was carried by the filter element (20) formed of a honeycomb material containing activated carbon fibers, the filtration frame (21) supporting the upper and lower ends of the filter element (20), and the filter element (20). Containing a photocatalytic substance,
In the filtration chamber (R) partitioned between the suction port (18) of the front unit (2) and the filter element (20), a vertically long light source (6) for exciting the photocatalytic substance is disposed,
The air purifier according to claim 1 or 2, wherein the filter (5) and the light source (6) mounted on the inner surface of the front unit (2) can be removed from the case body (1) together with the front unit (2). Machine. The filter element (20) accommodated in the case body (1) is formed in a V-shaped cross section,
The air cleaner according to any one of claims 1 to 3, wherein a ventilation space is secured between the left and right filtration planes (20a) of the filter element (20) and both side walls of the case body (1).   The air cleaner according to any one of claims 1 to 4, wherein an outer surface of the suction port (18) is covered with a three-dimensional suction grille (27) provided with a plurality of suction openings (30).   The first centrifugal fan unit (43) and the second centrifugal fan unit (44) are vertically adjacent to the case body (1) with the suction ports (50) opening in opposite directions. Air purifier.

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