JP7333630B2 - air purifier - Google Patents

Description

TECHNICAL FIELD The present invention relates to an air purifying device that sterilizes and inactivates microorganisms in the air with ozone (O ₃ ) and ultraviolet rays.

Conventionally, a method using ozone and a method using ultraviolet rays are known as means for sterilizing and inactivating microorganisms such as bacteria and viruses. Both methods have been confirmed to be effective against various bacteria and viruses, and are widely used. As an existing device using these, for example, there is a device shown in Patent Document 1. In this device, a long ozone lamp and an ultraviolet lamp are housed in a long rectangular parallelepiped lamp chamber, and a louver is provided at one end of the lamp chamber and a fan is provided at the other end. be. The air flowing from one end to the other end of the lamp chamber is irradiated with light from the ozone lamp and the ultraviolet lamp by the fan.

In addition, in Patent Document 1, a lamp that emits short wavelength (184.9 nm) ultraviolet rays (also referred to as ozone rays) that generates ozone is called an ozone lamp, and a longer wavelength (253.7 nm) ultraviolet rays (germicidal rays) A lamp that emits ultraviolet rays is called an ultraviolet lamp, but since all of them are lamps that emit ultraviolet rays, these lamps will be collectively referred to as ultraviolet lamps hereinafter. A lamp that emits ozone rays is called an ozone lamp, and a lamp that emits germicidal rays (a lamp that suppresses the emission of ozone rays) is called an ozoneless lamp.

In addition, killing bacteria is called "sterilization", eliminating the toxicity and infectivity of viruses is called "inactivation", and these are collectively called "sterilization / inactivation of microorganisms".

JP-A-61-244367

As described above, sterilization and inactivation of microorganisms in the air by ozone lamps and ozoneless lamps are conventionally well known, but there has been a demand for higher efficiency.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an air purifying apparatus capable of more efficiently sterilizing and inactivating microorganisms in the air using ozone and ultraviolet rays.

The present invention comprises a plurality of elongated ultraviolet lamps extending left and right, a long elongated case extending left and right for housing the ultraviolet lamps, an intake port and an exhaust port formed in the case, and an attachment to the intake port. The ultraviolet lamps extend parallel to each other, at least one is an ozone lamp and the others are ozoneless lamps, and the air intakes are located at the left and right ends of the case. The intake fan draws air from the intake port toward the inside of the case, and is attached separately to the left and right intake ports in the case, and the exhaust port is located on either the front or rear surface of the case. The ozoneless lamp is arranged in the case on both front and rear sides of the ozone lamp .

Further, in the present invention, the ozone lamp and the ozoneless lamp may be arranged at different heights , and the ozoneless lamps arranged on both front and rear sides of the ozone lamp may be arranged at the same height .

Further, the present invention may include a controller capable of freely controlling the turning on and off of the ozoneless lamp and the ozone lamp.

Further, according to the present invention, a bracket is provided on the upper surface of the case for fixing the case to the installation surface, and the bracket forms a space between the case and the installation surface . , an upside-down eaves-like one with an opening facing upward .

According to the present invention, since air is sucked from the intake ports at both ends of the long case, microorganisms in the air can be sterilized and inactivated more efficiently by the ozone lamp and the ozoneless lamp.

Also, ozone has the property of being decomposed by the germicidal radiation emitted from ozone-less lamps. Decomposition by germicidal radiation emitted from an ozoneless lamp can be suppressed.

Also, if a controller is provided, it is possible to freely control the lighting and extinguishing of the ozone lamp and the ozoneless lamp.

Moreover, if a space is formed between the case and the installation surface by the bracket, the efficiency of heat dissipation is enhanced by this space, so that the occurrence of defects of the ultraviolet lamp can be suppressed and the life of the lamp can be extended. Also, if the exhaust port is open upward, the light from the ultraviolet lamp will not be directed downward (places where people may be present).

BRIEF DESCRIPTION OF THE DRAWINGS The air cleaner of this invention is shown, (a) is a front view, (b) is a side view. FIG. 1(a) is a cross-sectional view taken along line AA of FIG. 1(a); FIG. 1(a) is a cross-sectional view taken along line BB of FIG. It is an explanatory view showing the flow of air in the case.

Specific contents of the air purifier of the present invention will be described below. In the following, left and right refer to left and right in FIG. 1(a), the front side refers to the front side of FIG. 1(a), and the rear side refers to the back side of FIG. 1(a). Moreover, screws, bolts, and the like for fixing the members are omitted from the drawings as appropriate. As shown in FIGS. 1 to 3, this air purifying device is installed with the installation surface P being the ceiling surface of the interior of a building. The air purifier includes three elongated ultraviolet lamps 1 and 2 and an elongated cuboid case 3 that houses the ultraviolet lamps 1 and 2 .

Of the three ultraviolet lamps 1 and 2, one is an ozone lamp 1 that emits ozone rays, and the other two are ozoneless lamps 2 that emit germicidal rays. The ozone lamp 1 and the ozone-less lamp 2 have exactly the same appearance, and consist of elongated light-emitting portions 11 and 21 extending left and right (horizontally), and base portions 12 provided at both ends of the light-emitting portions 11 and 21. , 22. The light emitting units 11 and 21 are made of glass tubes having a circular cross section, and house a light emitting mechanism (not shown) inside. The caps 12 and 22 are made of metal and have a cylindrical shape with a bottom, and close the ends of the light emitting parts 11 and 21 . Cables 13 and 23 extend from both caps 12 and 22, and connectors 14 and 24 are provided at the tips of the cables 13 and 23. As shown in FIG. Cables 16, 26 are further connected to these connectors 14, 24 through paired connectors 15, 25, and these cables 16, 26 are connected to the ballast and controller (not shown) installed outside the case 3. )It is connected to the. Cables 13, 23 on the side of the ultraviolet lamps 1, 2 and cables 16, 26 on the side of the ballast and controller are detachable through connectors 14, 15, 24, 25, respectively. The ballast and controller are then further connected to a power supply (not shown).

The ozone lamp 1 emits ozone rays (ultraviolet rays with a wavelength of 184.9 nm), and the ozone rays react with oxygen in the air to generate ozone. The ozoneless lamp 2 emits germicidal rays (ultraviolet rays with a wavelength of 253.7 nm). The ozone lamp 1 emits germicidal rays in addition to the ozone rays. Further, the ozone-less lamp 2 differs from the ozone lamp 1 in the material of the light-emitting portion 21, and the material of the light-emitting portion 21 has a property of cutting short-wave ultraviolet rays including ozone rays. , which suppresses the emission of ozone rays and emits only germicidal rays.

The case 3 is made of metal and has a box-shaped case body 31 that is elongated in the left-right direction and has an open bottom surface, and a lid body 32 that closes the bottom surface of the case body 31 . The case main body 31 is sized to accommodate the three ultraviolet lamps 1 and 2 therein, and has a horizontally oriented rectangular plate-shaped upper surface portion 31a and rectangular plate-shaped side portions extending downward from the front and rear sides of the upper surface portion 31a. 31b, rectangular plate-like end face portions 31c extending downward from the left and right sides of the upper surface portion 31a, and extension portions 31d extending inwardly from the lower ends of the side face portions 31b and the end face portion 31c. The cover 32 has a box-like shape lower than the case body 31, and is sized to just cover the lower surface of the case body 31. A rectangular plate-shaped side surface portion 32b extending upward from the front and rear sides of the lower surface portion 32a, a rectangular plate-shaped end surface portion 32c extending upward from the left and right sides of the lower surface portion 32a, and the upper ends of the side surface portion 32b and the end surface portion 32c toward the inner peripheral side It is composed of an extension portion 32d that extends in a vertical direction. The rear side portion 31b of the case body 31 and the rear side portion 32b of the lid body 32 are connected at two left and right locations by hinges 33, and the lid body 32 is an opening on the lower surface of the case body 31. can be opened and closed freely. Two snap locks 34 are provided on the left and right sides of the front side portion 31b of the case body 31 and the front side portion 32b of the lid 32 so that the lid 32 can be fixed in a closed state. . Note that when the lid 32 is closed, the extending portion 31d of the case main body 31 and the extending portion 32d of the lid 32 are in contact with each other.

In the vicinity of the left and right ends of the lower surface of the upper surface portion 31a of the case body 31 (the inner surface of the case body 31), a mounting pedestal 35 having a convex shape (upside down) when viewed in the horizontal direction is provided. The mounting pedestal 35 is formed by bending a strip-shaped metal plate. An upper mounting surface 35b positioned above the surface 35a, and a fixing surface 35c positioned on the front side of the front upper mounting surface 35b and on the rear side of the rear upper mounting surface 35b and positioned above the upper mounting surface 35b. have. The lower mounting surface 35a and the upper mounting surface 35b, and the upper mounting surface 35b and the fixing surface 35c are continuous through vertical surfaces. The mounting pedestal 35 is fixed by screwing a fixing surface 35c to the upper surface portion 31a of the case body 31 . As a result, the front and rear upper attachment surfaces 35b are one step lower than the upper surface portion 31a of the case main body 31, and the central lower attachment surface 35a is two steps lower than the upper surface portion 31a.

Mounting tools 36 for mounting the ultraviolet lamps 1 and 2 are provided on the lower mounting surface 35a and the two upper mounting surfaces 35b of the two left and right mounting bases 35, respectively. The mounting fixture 36 has a substantially U-shaped opening downward when viewed in the left-right direction. It has hanging pieces 36b that extend, and the front and rear hanging pieces 36b are formed with arc-shaped curved portions 36c that protrude outward. The width between the front and rear hanging pieces 36b is narrower than the diameter of the caps 12, 22 of the ultraviolet lamps 1, 2, and is expanded to spread the caps 12, 22 between the front and rear curved portions 36c. By putting it in, the base portions 12 and 22 are sandwiched and fixed by the front and rear hanging pieces 36b due to the elastic force of the hanging pieces 36b.

The ozone lamp 1 is attached to the fixture 36 on the lower mounting surface 35a of the mounting base 35, and the ozoneless lamp 2 is attached to the fixtures 36 on the front and rear upper mounting surfaces 35b. As a result, the ultraviolet lamps (ozone lamp 1 and ozoneless lamp 2) extend parallel to each other in the left-right direction (horizontal direction). An ozone lamp 1 is arranged in the center in the front-rear direction, and ozoneless lamps 2 are arranged on both front and rear sides of the ozone lamp 1 and at positions higher than the ozone lamp 1 . That is, the ozone lamps 1 and the ozoneless lamps 2 are arranged alternately when viewed from above, and the ozone lamps 1 and the ozoneless lamps 2 are arranged at different heights.

A circular intake port 4 is formed in the central portion of the left and right end faces 31c of the case main body 31. As shown in FIG. That is, the intake ports 4 are located at both ends of the case 3 in the longitudinal direction. Intake fans 5 are attached inside the left and right air intake ports 4 (inside the case body 31). The intake fan 5 is a fan housed inside a frame, and is mounted in a direction in which air flows from the outside to the inside of the case body 31 . Also, the intake fan 5 is connected to a controller (not shown) via a cable (not shown). A net-like guard member 41 is attached to the outside of each of the left and right air intakes 4 (the outside of the case body 31) to prevent fingers from touching the rotating fan.

Furthermore, exhaust ports 6 are formed in the front and rear side portions 31b of the case main body 31 . The exhaust port 6 is formed by pressing out the corresponding portion of the side surface 31b from the inside (so-called louver processing), and has a shape of an upside-down eaves that is long in the left and right direction (longitudinal direction of the case 3). is open. Three of these exhaust ports 6 are arranged vertically, and eight of them are arranged horizontally. Of the three vertically aligned exhaust ports 6, the lower exhaust port 6 is at substantially the same height position as the ozone lamp 1, and the central exhaust port 6 is at substantially the same height position as the ozoneless lamp 2. . That is, a plurality of exhaust ports 6 are arranged at approximately the same height as the ultraviolet lamps 1 and 2 and along the longitudinal direction of the ultraviolet lamps 1 and 2 . Here, "substantially the same height position" means that the exhaust port 6 and at least a part of the ultraviolet lamp (ozone lamp 1 or ozoneless lamp 2) overlap in the height direction.

Further, a wiring hole 37 is formed vertically through the corner of the upper surface 31a of the case body 31, and the cables 13, 23 of the ultraviolet lamps 1, 2 are connected through connectors 14, 15, 24, 25. The connected cables 16 and 26 and the cable of the intake fan 5 pass through the wiring hole 37 and extend to the ballast and controller arranged outside the case 3 . The connectors 14 and 24 provided at the ends of the cables 13 and 23 of the ultraviolet lamps 1 and 2 and the connectors 15 and 25 paired therewith are located inside the case body 31 .

Brackets 7 for fixing the case main body 31 (case 3) to the installation surface P are provided on the left and right sides of the upper surface portion 31a of the case main body 31 (the outer surface of the case main body 31). . The bracket 7 is formed by bending a strip-shaped metal plate, and includes a mounting piece 71 extending in the front-rear direction by substantially the same width as the case body 31 and standing pieces 72 extending upward from the front and rear ends of the mounting piece 71 . and a fixed piece 73 extending forward from the front standing piece 72 and rearward from the rear standing piece 72 . The mounting piece 71 is in contact with the upper surface of the upper surface portion 31a of the case body 31 and is fixed by screwing, and the fixing piece 73 is in contact with the installation surface P and is fixed by screwing. As a result, the case main body 31 (case 3) is attached to the installation surface P, and a space S corresponding to the height of the standing piece 72 is formed between the case main body 31 and the installation surface P.

In this air purifier, the controller can freely control the lighting and extinguishing of the ozone lamp 1 and the ozoneless lamp 2 . For example, a switch corresponding to each of the ozone lamp 1 and the ozone-less lamp 2 may be provided so that each switch can be turned on and off at an arbitrary timing by an on/off operation. A corresponding switch may be provided to turn on/off the lights at the same time by an on/off operation. Also, the time to turn on and turn off the ozone lamp 1 and the ozone-less lamp 2 may be set by a timer, and at that time, the ozone lamp 1 and the ozone-less lamp 2 are turned on and off alternately. may Further, the intake fan 5 may be started/stopped in conjunction with turning on/off the ozone lamp 1 and the ozoneless lamp 2 .

According to the air purifying device of the present invention configured in this way, as shown in FIG. 4 (arrows indicate the flow of air), air is drawn from the intake ports 4 at both ends of the elongated case 3. Light from the ozone lamp 1 and the ozoneless lamp 2 is applied to this air. Then, the air is immediately exhausted efficiently from an exhaust port 6 formed along the longitudinal direction of the ultraviolet lamps 1 and 2 at a position substantially at the same height as the ultraviolet lamps 1 and 2 on the side surface of the case 3. Therefore, airborne microorganisms can be sterilized and inactivated more efficiently. In addition, since the exhaust port 6 is open upward, the light from the ultraviolet lamps 1 and 2 is not irradiated downward (a place where people may be present). Also, ozone has the property of being decomposed by the sterilizing radiation emitted from the ozoneless lamp 2, but since the ozone lamp 1 and the ozoneless lamp 2 are arranged at different heights, the ozone generated by the ozone lamp 1 can be suppressed from being decomposed by the germicidal radiation emitted from the ozoneless lamp 2. Further, a space S is formed between the case 3 and the installation surface P by the bracket 7, and the efficiency of heat radiation is enhanced by the space S, so that the ultraviolet lamps 1 and 2 are prevented from malfunctioning and their life is extended. can be done.

The invention is not limited to the embodiments described above. For example, the number of ozone lamps and ozone-less lamps can be appropriately changed according to circumstances such as the size of the room in which this air purifier is installed. Also, the intake port may be positioned at the end in the longitudinal direction of the case, and does not necessarily have to be positioned at the end face. Furthermore, the position, number, and shape of the exhaust ports are only examples, and can be changed as appropriate as long as the above requirements are met. Alternatively, the ozone lamp and the ozoneless lamp may be arranged at different heights by providing mounting fixtures with different heights on the same height surface without using the mounting pedestal. Furthermore, connectors connected to cables on the ballast and controller sides may be fixed to the case body.

1 ozone lamp (ultraviolet lamp)
2 Ozoneless lamp (ultraviolet lamp)
3 Case 4 Intake Port 5 Intake Fan 6 Exhaust Port 7 Bracket

Claims (4)

A plurality of elongated ultraviolet lamps extending to the left and right, a elongated case extending to the left and right to house these ultraviolet lamps, an intake port and an exhaust port formed in the case, and an intake fan attached to the intake port with
The ultraviolet lamps extend parallel to each other, at least one of which is an ozone lamp and the rest are ozoneless lamps,
The air intakes are located on the left and right sides of the case,
The intake fan sucks air from the intake port toward the inside of the case, and is attached separately to the left and right intake ports in the case.
The exhaust port is formed on either the front or rear surface of the case,
An air purifier , wherein the ozoneless lamps are arranged on both front and rear sides of the ozone lamp in the case . The ozoneless lamp and the ozone lamp are placed at different heights ,
2. The air purifier according to claim 1, wherein the ozoneless lamps arranged on both front and rear sides are arranged at the same height. 3. The air purifier according to claim 1 , further comprising a controller capable of freely controlling on/off of the ozoneless lamp and the ozone lamp. A bracket is provided on the top surface of the case to fix the case to the installation surface.
A space is formed between the case and the installation surface by the bracket,
4. The air purifier according to claim 1 , wherein the exhaust port is in the form of an upside-down eaves and opens upward .

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