JP2023010498A - air suction purifier - Google Patents

Abstract

To provide a small portable air suction purifier that collects droplets with a high performance.SOLUTION: An air suction purifier 1 is composed of: a screen 2 having a first air inflow part 4 that allows inflow of external air, and an air flowing part 3 that flows the inflow air 9; an air purification part 10 into which the inflow air 9 flows from the screen 2, and which sterilizes or inactivates miscellaneous bacteria and viruses contained in the inflow air 9 with deep ultraviolet rays; a deep ultraviolet emitter 11 that is arranged in the air purification part 10 and emits deep ultraviolet rays; a first purified air discharge part 13 that is arranged in the air purification part 10 and discharges the inflow air 9 purified in the air purification part 10; and an exhaust fan 12 that is arranged near the first purified air discharge part 13 and sucks the external air from the first air inflow part 4 into the air purification part 10 through the air flowing part 3.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to an air suction purification device that purifies indoor air, and in particular, sterilizes and deactivates viruses and germs.

In recent years, due to the outbreak of new viruses such as the new corona, the risk of infection due to droplets scattering into the air due to conversation, coughing, sneezing, etc. has become a social problem.

Wearing a mask or face guard can reduce the risk of viral infection to a certain extent, but as long as droplets containing viruses and germs continue to float in the air, they can be directly inhaled or exposed to the eyes, nose, etc. There is a risk of infection with various viruses and germs by adhering to the mucous membrane of the body.

As a countermeasure against the risk of virus infection during meetings and meetings, there are increasing cases of placing an acrylic board on the desk and having a conversation through the acrylic board. However, if the dimensions of the installed acrylic plate are insufficient due to individual height differences, or if a person looks up slightly when conversing, coughing, or sneezing, the droplets can easily pass over the acrylic plate and reach the other side. will be reached. For this reason, the risk of viral infection cannot be reduced only by installing an acrylic board, and the risk of viral infection remains high.

In addition, when droplets containing viruses and germs float in the air, over time, they will be caught in air currents such as air conditioners and spread throughout the room, increasing the risk of viral infections. There is a problem.

On the other hand, many devices that purify indoor air, such as air purifiers equipped with various types of filters, HEPA filters (High Efficiency Particulate Air Filters), and air purifiers that use hypochlorous acid, are also on sale. . However, since it takes a certain amount of time to purify the indoor air, there is a limit to virus countermeasures in which infection occurs in a few seconds.

Furthermore, in recent years, remote meetings such as ZOOM (registered trademark) and Skype (registered trademark) and telecommuting have been increasing, but there are no opportunities to hold meetings with a few people or go to the workplace to perform daily tasks. It will not go away. For this reason, it is urgently necessary to implement virus infection countermeasures in living rooms when working with a large number of people, virus countermeasures in poorly ventilated places, and virus countermeasures in restaurants where meals are served. Against this background, air suction purification devices for sterilizing indoor air have been proposed (see Patent Documents 1 and 2).

Patent Literature 1 describes an air suction purification device configured to collect viruses and various germs in the air using a HEPA filter and remove them from the air.

Further, Patent Document 2 describes an air suction purification device configured to allow air to pass through a sterilization filter containing hypochlorous acid.

JP 2015-124914 A JP 2016-202191 A

However, with the above-described conventional device, if it takes several minutes or more to collect viruses or germs in the air, the viruses or germs float in the air for several hours thereafter. For this reason, people who are active in the room may directly inhale air containing viruses or germs, or attach them to the mucous membranes of their eyes or nose, increasing the possibility of being infected with viruses. .
In a closed room, if the droplets are spread in the room by air currents such as air conditioners, it takes more than tens of minutes to collect the dispersed droplets, so there is a possibility that the virus will be infected during that time. .

In addition, even if a mask or face shield is worn, as long as virus-containing droplets or germs are floating in the air, the person working in the room may directly The virus can be transmitted by inhaling or contacting the mucous membranes of the eyes or nose.
Furthermore, even if anti-virus equipment is installed in conference rooms where face-to-face meetings are held, it will be difficult to install anti-virus equipment in all locations.

The present invention has been made in view of such a situation, and prevents droplets emitted into the air from directly reaching the other party with whom the person is interacting, and also prevents the droplets emitted into the air from being blown into the air by an air conditioner. To provide an air suction purification device capable of sucking, collecting, purifying and sterilizing airborne droplets before they float on an air current in the air, and capable of collecting droplets in the air.

In addition, when holding a meeting with a barrier such as an acrylic plate installed on the desk in between, or when several people sit side by side in an office, etc., it is possible to solve the lack of height of the acrylic plate due to individual height differences. Air suction that collects droplets in the air that can collect droplets released into the air immediately after they are released (within a few seconds) even when coughing and sneezing while looking slightly upward An object of the present invention is to provide a purification device.

Another object of the present invention is to provide an air suction purification device that can be moved and carried to various places and that can collect droplets. In addition to collecting bacteria and droplets in the air, it also supplies air that has sterilized or inactivated bacteria and viruses in the air to the vicinity of the mouth and nose as exhaled air, greatly reducing the risk of virus infection. An object of the present invention is to provide an air suction purification device capable of

In order to solve the above problems, the invention according to claim 1 of the present invention has a first air inflow portion for inflowing external air, and the first air inflow portion at an upper end portion and the first air inflow inside. and an air purifying unit for sterilizing or inactivating germs and viruses contained in the inflowing air by means of deep ultraviolet rays. a deep ultraviolet light emitting device disposed in the air purifying section and emitting deep ultraviolet light; a screen holding section for holding the screen section and placing the screen section on an upper surface of the air purifying section; and the air purifying section. a connecting port provided on the upper surface of the air flow section for allowing the inflow air from the air flowing section to flow into the air purification section; and an exhaust fan disposed near the first purified air discharge portion for sucking the external air from the first air inlet portion to the air purification portion via the air flow portion. wherein the connection port is configured substantially at an end of the air purification unit, and the inflow air that has flowed into the air purification unit from the connection port passes through the vicinity of the deep ultraviolet light emitting device while passing through the first The air suction purification device is characterized in that the air is discharged from a purified air discharge part.

Similarly, according to the invention of claim 2, in the air suction purification device of claim 1, the inflow pressure of the inflow air to the first air inflow part is made uniform, and the suction speed of the external air is made uniform. It is characterized by having an inflow pressure equalizing port for.

Similarly, according to the invention of claim 3, in the air suction and purification apparatus of claim 1, the screen holding section prevents the inflow air from the air flowing section to flow into the connecting port abruptly to increase the pressure loss. It is characterized by having a pressure loss reducing portion for preventing pressure loss.

Similarly, the invention according to claim 4 has a second air inflow part for inflowing external air, and the inflowing air flows in from the second air inflow part, and the deep ultraviolet rays kill bacteria and viruses contained in the inflowing air. An air purification unit that sterilizes or inactivates, a deep ultraviolet light emitting device that is disposed in the air purification unit and emits deep ultraviolet rays, and an air flow unit that flows the inflow air from the air purification unit inside. A screen portion having a second purified air discharge portion for discharging the inflowing air from the air flow portion to the outside, and a screen portion for holding the screen portion and installing the screen portion on the upper surface of the air purification portion. a screen holding portion, a connection port disposed on the upper surface of the air purification portion and allowing the inflow air from the air purification portion to flow into the air flow portion, and a connection port disposed near the second air inflow portion and the It is composed of a suction fan for causing outside air to flow into the air flow section from the second air inlet section through the air purification section, and the connection port is disposed substantially at the end of the air purification section and the first air purification section. The inflow air that has flowed into the air purification unit from the second air inflow unit passes through the connection port while passing near the deep ultraviolet light emitting device, flows into the air flow unit, and exits from the second purified air discharge unit to the outside. It is an air suction purification device characterized by discharging to.

Similarly, according to the invention of claim 5, in the air suction purification device of claim 4, the discharge pressure of the inflow air discharged from the second purified air discharge part is made uniform, and the discharge speed of the inflow air is reduced. It is characterized by having a discharge pressure equalizing port for equalizing.

Similarly, according to the sixth aspect of the present invention, there is provided the air suction and purification apparatus according to the fourth aspect, wherein the screen holding portion prevents the inflowing air from the connecting port to flow into the air flowing portion abruptly, resulting in an increase in pressure loss. It is characterized by having a pressure loss reducing portion for preventing pressure loss.

Similarly, the invention according to claim 7 is the air suction purification device according to claim 1, wherein the screen portion and the screen holding portion are moved on the upper surface of the air purification portion to move the pressure loss reduction portion to the first air purification portion. The external air is allowed to flow in from the connection port by disposing it above the air discharge part and opening the upper surface of the connection port so that the external air can flow in, and the inflow air from the connection port passes near the deep ultraviolet light emitting device, sterilizes and inactivates various bacteria and viruses contained in the inflowing air, and flows into the pressure loss reduction unit through the exhaust fan and the first purified air discharge unit. and the inflow air flowing into the pressure loss reducing portion flows into the air flowing portion and is exhausted to the outside from the first air inflow portion provided with the uniform inflow pressure port, and the partition portion is The structure is characterized in that the flow direction of the inflow air in the air flow section is reversed by moving it on the upper surface of the air cleaning section.

Similarly, according to an eighth aspect of the present invention, there is provided an air intake/exhaust section for inflowing external air, and an air flow section having the air intake/exhaust section at the upper end thereof and for causing the inflow air from the air intake/exhaust section to flow therein. an air purifier that receives the inflow air from the screen and sterilizes or inactivates viruses contained in the inflow air with deep ultraviolet rays; and is disposed in the air purifier and emits deep ultraviolet rays. a screen holder for holding the screen part and installing the screen part on the upper surface of the air purification part; a connection port through which the inflowing air flows into the air purification unit; a first purified air discharge unit disposed in the air purification unit and discharging the inflowing air purified by the air purification unit; The exhaust fan is disposed near the purified air discharge section and draws the external air from the air intake/exhaust section to the air purification section via the air flow section, and the connection port is an abbreviation of the air purification section. The air, which is arranged at the end and is discharged from the first purified air discharge part while flowing into the air purification part from the connection port, while passing near the deep ultraviolet light emitting device. It has a suction purification device and a second air inflow portion for inflowing the external air, and the inflow air flows in from the second air inflow portion, and the deep ultraviolet rays sterilize or inactivate various bacteria and viruses contained in the inflow air. the air purifier, the deep ultraviolet ray emitting device disposed in the air purifier and emitting deep ultraviolet ray, and the air flow unit for flowing the air flowing in from the air purifier. and the screen for holding the screen and installing the screen on the upper surface of the air purification unit. the partition holding portion; the connecting port disposed on the upper surface of the air purification portion and allowing the inflow air from the air purification portion to flow into the air flow portion; It is composed of a suction fan that is arranged in the vicinity and causes the external air to flow into the air flow section from the second air inflow section through the air cleaning section, and the connection port is configured substantially at an end of the air cleaning section. and the inflow air that has flowed into the air purification unit from the second air inflow unit passes through the connection port while passing near the deep ultraviolet light emitting device and flows into the air flow unit. an air suction purification device characterized in that the air is discharged to the outside from the air intake/exhaust unit, and either the exhaust fan or the suction fan is operated by a changeover switch, and the operation is stopped. provided with a shielding plate that substantially shields the air flow of the second air inflow portion or the first purified air discharge portion disposed on the upper surface of the air intake and exhaust portion by the operation of the suction fan or the exhaust fan This air suction purification device is characterized by reversing the flow of air.

Similarly, the invention according to claim 9 is the air suction and purification device according to claim 8, in which the inflow pressure of the inflow air to the air intake/exhaust part is made uniform and the suction speed of the external air is made uniform, It is characterized by comprising an inflow/discharge pressure uniformity port for uniformizing the discharge pressure of the inflow air discharged from the air intake/exhaust part and uniformizing the discharge speed of the inflow air.

Similarly, according to the tenth aspect of the invention, in the eighth aspect of the air suction and purification apparatus, the screen holding portion prevents the inflow air from suddenly flowing from the air flowing portion to the connecting port, or A pressure loss reduction section is provided to prevent the inflow air from suddenly flowing into the air flow section from the connection port.

Similarly, according to the eleventh aspect of the invention, there is provided the air suction purification device of the eighth aspect, wherein the shielding plate is arranged on the upper surface of the fan whose operation is stopped by a shielding plate moving mechanism such as a hinge or a slide mechanism. characterized by substantially shielding the air flow of the second air inflow portion or the first purified air discharge portion.

Similarly, the invention according to claim 12 is the air suction purification device according to claims 1, 4 and 8. The deep ultraviolet light emitting device is characterized by using a germicidal lamp or an LED as a light source and emitting light at a wavelength of 180 nm to 350 nm.

Similarly, according to the invention of claim 13, in the air suction purification apparatus of claims 1, 4 and 8, the exhaust fan and the suction fan are axial fans.

Similarly, according to the invention of claim 14, in the air suction purification apparatus of claims 1, 4, and 8, the screen section and the air purification section are detachable and movable relative to each other. and

Similarly, according to the fifteenth aspect of the invention, there is provided the air suction purification apparatus of the first, fourth and eighth aspects, wherein the screen portion and the screen holding portion are formed of a plate-like member or an integral member. Characterized by

Similarly, according to the sixteenth aspect of the present invention, in the air suction and purification apparatus of the first, fourth and eighth aspects, the mass of the screen portion or the screen holding portion is increased so that the wind pressure of the inflowing air is applied to the screen. It is characterized by constituting a mass balance for preventing the part from floating.

Similarly, according to the seventeenth aspect of the invention, there is provided the air suction and purification apparatus according to the first, fourth and eighth aspects, further comprising a flow rate adjusting mechanism for changing the flow rate of the inflow air of the air flow section. It is characterized by

Similarly, according to the eighteenth aspect of the invention, there is provided the air suction purification apparatus according to the first, fourth and eighth aspects, wherein the height of the upper end of the partition is 5 cm to 50 cm from the ground surface. and

Similarly, the invention according to claim 19 is characterized in that, in the air suction purification device according to claims 1, 4 and 8, the height of the pressure loss reducing portion is 5 mm to 40 cm.

Similarly, according to the invention of claim 20, in the air suction purification apparatus of claims 1, 4 and 8, any one of the lower part of the suction fan, the lower part of the exhaust fan, and the upper part of the connection port is provided. It is characterized in that a reflection reducing portion is provided at more than six locations to prevent leakage of deep ultraviolet rays.

Similarly, according to the invention of claim 21, in the air suction and purification apparatus of claims 4 and 8, a reflection wall is provided around the deep ultraviolet light emitting device for reflecting at least 30% or more of the luminous flux of the deep ultraviolet light emission wavelength. characterized by configuring a reflective wall channel in which

The air suction purification device according to claims 1 to 21 according to the present invention is configured as described above, and includes the first air inlet, the second air inlet, the connection port, and the air suction. By sucking the droplets released into the air by talking, coughing, sneezing, etc. at the air inflow part such as the exhaust part, it is possible to suck and collect various bacteria and viruses floating in the air of the room. Become. In particular, by collecting the droplets released into the air in a few seconds, the droplets can be collected before they get on the air currents of the air conditioner and spread inside the room, which greatly reduces the risk of virus infection. becomes. By installing an air suction purification device between the spaces where people face each other and talk, the droplets generated by each other's conversation, coughing, and sneezing are sucked in a few seconds, and the area around the mouth, eyes, and nose of the person facing each other. It is possible to greatly reduce the risk of direct contact with droplets.

In addition, the deep ultraviolet light emitted from the deep ultraviolet light emitting device in the air purification unit is irradiated to bacteria and viruses for a certain period of time, and the preset cumulative irradiation amount (target value is 1 mJ/cm ² or more) is irradiated. By doing so, bacteria and viruses are sterilized or inactivated, and the inflow air that has collected and sterilized these bacteria and viruses is discharged again to the room or near the mouth or nose, so that it can be used for sterilization and viruses. It is possible to greatly reduce the risk of infection, and it is possible to realize a highly reliable and high-performance air suction purification device with a simple configuration.

In addition, the air suction purification device according to claims 1 to 21 is simple, compact, and portable, and can significantly reduce the installation cost. It is possible to select a structure for sucking, and a structure for generating purified air (air in which germs and viruses are sterilized or inactivated) from the screen and sucking the purified air.

With such a simple configuration, it is portable and can be easily installed on existing desks and tables in meeting rooms and office spaces, making it possible to realize a relatively inexpensive air suction purification device and to use it properly according to the situation. It is possible to realize a highly reliable air suction purification device.

1 is a perspective view (a) of the air suction purification device 1 according to Embodiment 1, and a schematic side view (a cross-sectional view of a substantially central portion of the air flowing portion 3) (b). FIG. 1 shows a schematic diagram of a cross-sectional view (substantially central part of an air flow section 3) of the side surface of the air suction purification device 1 according to Embodiment 1. FIG. 4 shows a configuration example of a reflection reducing section 17 in the air suction device 1 according to Embodiment 1. FIG. FIG. 4 is a diagram showing the flow velocity distribution (a) in the case where the uniform inflow pressure port 6 is not provided in the flow channel according to the first embodiment, and the flow velocity distribution (b) in the case where the uniform inflow pressure port 6 is provided. The pressure distribution (a) when the height of the pressure loss reduction portion 7 in the flow channel according to Embodiment 1 is 5 mm, and the pressure distribution (b) when the height of the pressure loss reduction portion 7 is 20 mm. be. It is a schematic diagram (b) of a perspective view (a) and a side view (partially transparent) of the air suction purification device 1 according to Embodiment 2. FIG. FIG. 10 is a schematic diagram (b) of a perspective view (a) and a side view (a cross-sectional view of a substantially central portion of the air flowing portion 3) of the air suction purification device 1 according to Embodiment 2; FIG. 10 is a diagram showing the flow velocity distribution (a) in the configuration of Embodiment 1 in the channel according to Embodiment 3, and the flow velocity distribution (b) when the screen part 2 and the screen holding part 5 are moved; The figure which showed the usage example of the air suction purification apparatus 1 which concerns on Embodiment 3, The example (a) used as a droplet suction apparatus between two persons, The example (b) which purifies air and uses it as expiration|exhalation is shown. It is a diagram. FIG. 12A is a perspective view (a) and a schematic side view (partially transparent) (b) of an air suction purification device 1 according to Embodiment 4. FIG. FIG. 13A is a schematic diagram (a) showing an example of a movement mechanism of a shielding plate 25 according to Embodiment 4, and (b) is a partially enlarged view thereof. As an operation example of the shielding plate 25 according to Embodiment 4, a schematic perspective view (a) of a configuration used as a droplet suction device and a schematic perspective view (b) of a configuration used as a purified air supply device are shown.

(Circumstances leading to obtaining one form of the present invention)
As a result of extensive research on the conventional air purifier described in "Background Art" and the splash prevention plate using the acrylic plate installed in the conference room, the present inventor found that the splash prevention plate using the conventional acrylic plate When used in , if you cough or sneeze, it may be possible to prevent the droplets from being directly applied to the other person at that moment, but the droplets that become fine particles will float in the air for several minutes to several hours. In addition, if you are tall and your face is positioned beyond the upper side of the acrylic plate, or if you cough or sneeze diagonally upward, the person you are talking to may be directly splashed by the cough or sneeze. There was a problem of becoming

Furthermore, even when an air purifier is installed indoors, the conventional air purifier is configured to purify the indoor air over a certain period of time (for example, several tens of minutes to several hours). Therefore, it takes a considerable amount of time to collect droplets that become fine particles floating in the air, viruses, and other germs with a HEPA filter of an air purifier. We faced the problem that we could not expect much of the purification effect.
In order to be infected with influenza and other viruses such as viruses released into the air by coughing and sneezing, and new coronaviruses floating in the air, it is necessary to enter the body through the mouth or through the eyes. If you touch mucous membranes such as your nose, it is thought that you will be infected in a few seconds at the earliest.
If there is an air ventilation system that instantly replaces all the air in the room within a few seconds when droplets are generated due to coughing or sneezing, or an air conditioner that instantly replaces the air in the room, there is no problem, but it is large and the initial investment is enormous. It becomes difficult to realize. Furthermore, even with air purifiers, if the collected droplets and viruses contained in the air are not killed or inactivated as much as possible, they will be released into the room again and the virus will be contained in the indoor air. faced.

As a result of repeated studies on this problem, the inventors of the present invention have found that the above problem can be solved by improving the following points. That is, the air suction purifying device is used to prevent splashes caused by coughing and sneezing from directly hitting the person sitting opposite the person with whom the conversation is being held.
In addition, it prevents droplets from directly hitting the mouth, eyes, nose, etc. of tall people, and prevents droplets emitted diagonally upward such as coughs and sneezes from exceeding droplet prevention devices such as acrylic plates. Prevent droplets from directly hitting the mouth, eyes, nose, etc. of the person sitting opposite. At this time, since the droplets come down from above, even if the height of the droplet prevention device such as an acrylic plate has some margin, the droplets will not reach the mouth, eyes, nose, etc. of the person sitting opposite. Since it will be directly applied, it is necessary to take into consideration the flow of droplets.

Furthermore, is it possible to prevent airborne droplets from coughs and sneezes, various germs, and viruses released into the air within a second from being suspended in the air by an air suction purification device? We also wondered whether it would be possible to sterilize or inactivate the collected germs and viruses by irradiating them with deep ultraviolet rays.
At this time, instead of repeatedly collecting various bacteria and viruses floating in the room for sterilization and inactivation, the cumulative irradiation dose (mJ/cm ² ) and purify the collected air before returning it to the room.

For this reason, the air suction purification device places a member such as an acrylic plate to prevent droplets between two people who are talking face to face, and locally removes the air around each other's faces, which is a relatively narrow area. The airflow is controlled by sucking with a fan (axial fan, sirocco fan, various small fans, etc.), and droplets, viruses and germs during conversation, coughing and sneezing are sucked in a specific flow path. The inventors came up with the idea that if bacteria and viruses are sterilized or inactivated by ultraviolet irradiation for a certain period of time, an air suction purification device can be realized relatively simply and at low cost.

First, by placing a droplet prevention device such as an acrylic plate between two people who talk face-to-face with an air suction purification device, the probability of direct droplets is reduced, and then the top surface of the droplet prevention device sucks the airflow in the part close to the face. Next, the air suction purification device collects droplets, viruses, and germs contained in the sucked air with a filter (at this time, the configuration for collecting with a filter is not essential).

Furthermore, the air suction purification device kills or inactivates the viruses and bacteria that have passed through after collection by irradiating them with deep ultraviolet rays having an emission wavelength near 265 nm or a germicidal lamp for a certain period of time.

On the other hand, instead of permanently installing the above air suction purification device, it is a mobile type that can be carried or a small size that can be easily moved by one person, and has suction performance and virus inactivation performance. The suctioned and purified air can be returned to the room, greatly reducing the risk of virus infection. In addition, when you are alone or in a place with poor ventilation, it is recommended to take in the air in the room and use deep ultraviolet rays to remove bacteria and viruses so that you can breathe in purified air that does not contain viruses and other bacteria as much as possible. It is possible to further reduce the risk of virus infection by adopting a configuration in which the activated air is exhausted near the mouth or nose.

Based on these problems, findings, and inventions, the present inventors have devised a compact, lightweight, and portable air suction and purification device with a simple structure that can switch between air suction and air discharge near the mouth.
Further, the present invention provides an air suction purification device according to the following aspects.

An air suction and purification device according to a first aspect of the present invention has a first air inflow portion for inflowing external air, and the first air inflow portion at an upper end portion, and an airflow from the first air inflow portion is provided inside. a screen portion having an air flow portion for flowing air; an air purifying portion for sterilizing or inactivating bacteria and viruses contained in the inflowing air by deep ultraviolet rays from which the inflowing air flows from the screen portion; and the air purification. a deep ultraviolet light emitting device disposed in a portion and emitting deep ultraviolet light; a screen holding portion for holding the screen portion and installing the screen portion on the upper surface of the air purification portion; a connection port provided for allowing the inflow air from the air flowing section to flow into the air purification section; and a first connection port provided in the air purification section for discharging the inflow air purified by the air purification section. and an exhaust fan disposed in the vicinity of the first purified air discharge portion for sucking the external air from the first air inlet portion to the air purification portion via the air flow portion, The connection port is configured substantially at an end of the air purification unit, and the inflow air that has flowed into the air purification unit from the connection port passes through the vicinity of the deep ultraviolet light emitting device while passing through the first purified air discharge unit. It is configured to be more discharged.

According to the above configuration, a screen made of an acrylic plate or the like is placed between two people who are talking face-to-face, and the local air near each other's faces is sucked from the air intake section and released into the air. Droplets, viruses, germs, and the like can be collected immediately after they are released, so the risk of virus infection can be greatly reduced. In addition, with a relatively simple configuration, it prevents droplets that fly out into the air from reaching the conversation partner directly, and sucks and captures droplets that fly out into the air before they float on air currents such as air conditioners. It is possible to provide an air suction purification device that collects, purifies, and sterilizes high-performance droplets.

Air currents from air conditioners, air purifiers, and movement of people exist in the room, so the air flow near the first air inlet is sucked without being affected by these air currents as much as possible. It is important to control as much as possible.
In addition, if you are tall and your face is positioned beyond the upper side of the acrylic plate, or if you cough or sneeze diagonally upward, it will prevent the droplets from coughing or sneezing from directly hitting the other side. At the same time, it prevents droplets from directly hitting the mouth, eyes, nose, etc. of tall people, and prevents droplets such as coughs and sneezes emitted diagonally upward from splashing prevention devices such as acrylic plates. It is possible to prevent droplets from directly hitting the mouth, eyes, nose, etc. of the person sitting on the opposite side.

On the other hand, there is an air suction purification device that can absorb droplets, viruses, and germs when talking, coughing, and sneezing through a channel with a screen, and can sterilize or inactivate germs and viruses by irradiating them with ultraviolet rays for a certain period of time. The effect is that it can be constructed relatively simply and at low cost.
In addition, the connecting port is formed at the end of the air purifier, and the inflowing air flows from one end of the deep ultraviolet light emitting device and flows to the other end, so that efficient deep ultraviolet irradiation becomes possible, and performance is improved. Miniaturization can be achieved.

Further, an air suction purification device according to a second aspect of the present invention is characterized in that, in the configuration of the air suction purification device according to the first aspect, the inflow pressure of the inflow air to the first air inflow portion is made uniform, and the outside air is It has an inflow pressure equalizing port for equalizing the air suction speed.
With the above-described configuration, the pressure distribution in the vicinity of the first air inlet portion in the air flow portion is uniformed, the inflow pressure of the inflow air is uniformed, and the inflow speed of the external air in the first air inlet portion. can be made uniform and the average speed can be increased.
In addition, by widening the space between the air flow portions and reducing the area of the uniform inflow pressure port, the area of only the external air suction portion (the uniform inflow pressure port) can be reduced. It is possible to reduce the pressure loss in the flow part as much as possible, efficiently increase the suction speed of the external air, and make the suction speed uniform, so that it is possible to provide a high-performance air suction purification device with excellent suction performance. Become.

From the viewpoint of preventing an increase in pressure loss, the width of the flow path between the two surfaces in the air flowing portion is preferably 5 mm or more, and the material of the partition portion is preferably transparent or translucent as much as possible. It is also possible to configure it as a non-transparent material such as wood.

Further, in the air suction purification device according to a third aspect of the present invention, in the configuration of the air suction purification device according to the first aspect, the partition holding portion rapidly moves the incoming air from the air flow portion to the connection port. has a pressure loss reducing portion that prevents the flow of the gas and an increase in the pressure loss.

With the above-described configuration, when the external air is sucked and the inflowing air passes through the air flow portion and flows into the air cleaning portion through the connection port, the air flow portion and the connection port are separated from each other. The pressure loss reduction section is configured between the air flow section, the connection port, and the air purification section to reduce a sudden pressure increase at one or more locations, or the air flow section, the connection port, or the It is possible to prevent a sudden increase in pressure loss in one or more places of the air purification unit, and it is possible to prevent a decrease in the flow rate of the inflow air. can be realized.

Further, the air suction and purification device according to the fourth aspect of the present invention has a second air inflow part for inflowing external air, and the inflowing air flows in from the second air inflow part, and the deep ultraviolet ray is applied to the inflowing air. An air purifying unit that sterilizes or inactivates contained germs and viruses, a deep ultraviolet light emitting device that is disposed in the air purifying unit and emits deep ultraviolet light, and the inflow air from the air purifying unit is made to flow inside. a screen portion having an air flow portion and having a second purified air discharge portion for discharging the inflow air from the air flow portion to the outside; a screen holding part for installing a screen part; a connecting port disposed on an upper surface of the air purification part for allowing the inflow air from the air purification part to flow into the air flow part; and the second air inflow part. It is composed of a suction fan that is arranged in the vicinity and causes the external air to flow into the air flow section from the second air inflow section through the air cleaning section, and the connection port is configured substantially at an end of the air cleaning section. and the inflow air that has flowed into the air purification unit from the second air inflow unit passes through the connection port while passing near the deep ultraviolet light emitting device and flows into the air flow unit to the second purification It is configured to be discharged to the outside from the air discharge portion.

With the above configuration, the external air is sucked by the suction fan, and the inflow air that has flowed in from the second air inflow part is purified by deep ultraviolet rays emitted from the deep ultraviolet light emitting device installed in the air purification part. The air is discharged from the second purified air discharging portion through the connection port, passing through the pressure loss reducing portion and the air flowing portion.

The inflowing air purified by the air purification unit and discharged from the second purified air discharge unit is flowed near the mouth or nose and sucked as exhaled air, thereby purifying bacteria and viruses in a state of being sterilized or inactivated. By taking air into the body, it is possible to greatly reduce the health damage caused by various bacteria and the risk of infection by viruses. By carrying it to various places such as indoors with poor ventilation, restaurants where you eat, places where a lot of droplets fly, outdoors where there is a risk of infection, and sucking inflowing air purified by an air suction purification device as exhalation. It is possible to greatly reduce the risk of virus infection in daily life.
It is said that the amount of air required for human breathing is about 6 L per minute ^{, and a minimum flow rate of 0.002 m 3 /} min is required. The fan supplies 150 times more purified air, which is sufficient from the viewpoint of the required amount of exhaled air.

Further, an air suction purification device according to a fifth aspect of the present invention is the configuration of the air suction purification device according to the fourth aspect, wherein the discharge pressure of the inflowing air discharged from the second purified air discharge portion is made uniform. and a discharge pressure equalizing port for equalizing the discharge speed of the incoming air.

With the above-described configuration, the pressure distribution in the vicinity of the second purified air discharge section in the air flow section is made uniform, and the outflow pressure of the inflow air is made uniform, and the inflow air in the second purified air discharge section. It is possible to equalize the outflow velocity of the water and increase the average velocity.
In addition, by widening the space between the air flowing portions and reducing the area of the uniform discharge pressure port, the area of only the discharge portion for the inflowing air (the uniform discharge pressure port) can be reduced. It is possible to reduce the pressure loss in the flow section as much as possible, efficiently increase the discharge speed of the inflowing air, and make it uniform, so that it is possible to provide a high-performance air suction purification device with excellent exhaust performance.

From the viewpoint of preventing an increase in pressure loss, the width of the flow path between the two surfaces in the air flowing portion is preferably 5 mm or more, and the material of the partition portion is preferably transparent or translucent as much as possible. It is also possible to configure it as a non-transparent material such as wood.
Further, according to a sixth aspect of the present invention, in the configuration of the air suction purification device according to the fourth aspect, the screen holding portion is adapted to rapidly flow into the air flow portion from the connection port. It has a pressure loss reducing portion that prevents air from flowing in and pressure loss from increasing.

With the above-described configuration, when the external air is sucked and the inflowing air passes through the air purification section and flows into the air flow section through the connection port, the air flow section and the connection port are separated from each other. The pressure loss reduction section is configured between the air flow section, the connection port, and the air purification section to reduce a sudden pressure increase at one or more locations, or the air flow section, the connection port, or the It is possible to prevent a sudden increase in pressure loss at one or more points in the air purifying section, and it is possible to prevent a decrease in the flow rate of the inflow air, so that a high-performance air suction purification device with excellent purification performance. can be realized.

Further, in the air suction purification device according to the seventh aspect of the present invention, the screen portion and the screen holding portion are moved on the upper surface of the air purification portion, and the pressure loss reduction portion is moved from the first purified air discharge portion. The external air is allowed to flow in from the connection port by arranging it in the upper part and opening the upper surface of the connection port to the external air so that the external air can flow in, and the inflow air from the connection port passes near the deep ultraviolet light emitting device, sterilizes and inactivates various bacteria and viruses contained in the inflowing air, and flows into the pressure loss reduction unit through the exhaust fan and the first purified air discharge unit. The inflow air flowing into the pressure loss reducing portion flows into the air flow portion and is exhausted to the outside from the first air inflow in which the inflow pressure equalizing port is arranged, and the partition portion is configured to be the It is configured to reverse the flow direction of the inflow air in the air flow section by moving it on the upper surface of the air purification section.

With the above-described configuration, the suction force of the exhaust fan enables external air to be sucked from the connection port, and the inflow air that has flowed in from the connection port is purified by the air purifying section, and is transferred to the pressure loss reducing section by the exhaust fan. influx. The inflow air that has flowed into the pressure loss reduction portion passes through the air flow portion and is discharged to the outside through the inflow pressure uniform port and the first air inflow portion.
At this time, by utilizing the direction of flow of the exhaust fan and disposing the pressure loss reduction section above the exhaust fan, the direction of the inflow air flowing through the air flow section can be reversed by 180 degrees. As a result, the air suction purification device that sucks droplets from the first air inlet can be used as the air suction purification device that discharges purified air from the first air inlet.

By flowing the purified air discharged from the first air inflow part near the mouth and nose, the purified air can be exhaled, and viruses in poorly ventilated meeting rooms, restaurants, etc. It is possible to significantly reduce the risk of infection to Furthermore, because of its small configuration, it can be installed in various places and carried, so that one or more people can take measures against droplets and viruses.

In this way, one exhaust fan has two functions of sucking droplets from the first air inflow part and discharging purified air, so that it is small, lightweight, low cost, high performance, and portable. It becomes possible to realize a suction purification device.

Further, an air suction purification device according to an eighth aspect of the present invention has an air intake/exhaust part for inflowing external air, and the air intake/exhaust part at an upper end thereof, and the inflow air from the air intake/exhaust part is provided inside the air intake/exhaust part. an air purifying unit for sterilizing or inactivating viruses contained in the inflowing air with deep ultraviolet rays from which the inflowing air flows from the screen; and the air purifying unit. a deep-ultraviolet light-emitting device for emitting deep-ultraviolet rays; a screen holder for holding the screen and for mounting the screen on the upper surface of the air purification unit; a connection port through which the inflow air from the air flow unit flows into the air purification unit; and a first purified air discharge disposed in the air purification unit for discharging the inflow air purified by the air purification unit. and an exhaust fan disposed in the vicinity of the first purified air discharge portion for sucking the external air from the air intake/exhaust portion to the air purification portion via the air flow portion, and the connection port is The air flowing into the air purifying unit from the connecting port is discharged from the first purified air discharging unit while passing near the deep ultraviolet light emitting device. and a second air inflow part for inflowing external air, and the inflowing air flows in from the second air inflow part, and deep ultraviolet rays kill bacteria and viruses contained in the inflowing air. The air purification unit that sterilizes or inactivates, the deep ultraviolet light emitting device that is disposed in the air purification unit and emits deep ultraviolet rays, and the air flow unit that causes the inflow air from the air purification unit to flow therein. and has at its upper end the air intake/exhaust part for discharging the air flowing in from the air flow part to the outside; the partition holding part for installation; the connecting port disposed on the upper surface of the air purification part and allowing the inflow air from the air purification part to flow into the air flow part; and the vicinity of the second air inflow part. and a suction fan disposed near the exhaust fan for allowing the external air to flow from the second air inflow portion to the air flow portion via the air cleaning portion, wherein the connection port is of the air cleaning portion. The inflow air, which is configured substantially at the end and has flowed into the air purification unit from the second air inflow unit, passes through the connection port while passing near the deep ultraviolet light emitting device, and the air an air suction purification device characterized in that the air flows into the flow portion and is discharged to the outside from the air intake/exhaust portion; A shielding plate is provided on the upper surface of the stopped fan and substantially shields the air flow of the second air inflow portion or the first purified air discharge portion, and the operation of the suction fan or the exhaust fan causes the It is configured such that the flow of air in the air intake/exhaust section is reversed by approximately 180 degrees.

With the above-described configuration, when the suction fan is stopped and the exhaust fan is operated, external air is sucked from the air intake/exhaust part, and the inflow air passes through the air flow part and is connected to the connection port. and flows into the air purification unit. The inflow air that has flowed into the air purification unit is purified by a deep ultraviolet light emitting device that is disposed in the air purification unit and emits deep ultraviolet rays, and is discharged to the outside by the exhaust fan. At this time, the second air inlet, which is the external air inlet of the suction fan, is blocked by the shielding plate so that the external air does not flow.

On the other hand, when the exhaust fan is stopped and the suction fan is operated, the external air is sucked by the suction fan, and the inflow air flows into the air cleaning section. The inflow air that has flowed into the air purifier is purified by a deep ultraviolet ray emitting device that is disposed in the air purifier and emits deep ultraviolet rays, passes through the connection port, and flows into the air flow section.

The inflow air that has flowed into the air flowing portion is discharged to the outside through the air intake/exhaust portion. At this time, the first purified air discharge portion, which is the outflow portion of the exhaust fan, is blocked by the shielding plate so that the inflow air does not flow out.
A configuration that utilizes the flow directions of the exhaust fan and the suction fan to reverse the direction of the inflow air flowing through the air flow unit by approximately 180 degrees, and sucks droplets from the air intake and exhaust unit; It is possible to utilize the air suction purification device by properly using the configuration for discharging the purified air from the air intake and exhaust section.

By collecting droplets containing germs and viruses from the air intake/exhaust part, it is possible to greatly reduce the risk of virus infection. In addition, by flowing the purified air discharged from the air intake and exhaust part near the mouth and nose, it is possible to exhale the purified air. It is possible to greatly reduce the risk of infection with viruses such as. By constructing the air suction purification device without moving the components in this way, it is possible to implement the two functions with stable operation, thereby realizing a highly reliable air suction purification device. It becomes possible.

Furthermore, there is no leakage of air from the second air inlet section when the suction fan is stopped, and air leakage from the first purified air discharge section when the exhaust fan is stopped. Therefore, it is possible to prevent a large decrease in the flow rate of the inflow air, and to provide a high-performance air suction purification device with a large flow rate of the inflow air.

Further, an air suction purification device according to a ninth aspect of the present invention, in the configuration of the air suction purification device according to the eighth aspect, equalizes the inflow pressure of the inflow air to the air intake/exhaust portion, and and equalize the discharge pressure of the inflow air discharged from the air intake/exhaust part to equalize the discharge speed of the inflow air. .

With the above-described configuration, when the exhaust fan is operated, the pressure distribution in the vicinity of the air intake/exhaust portion in the air flow portion is made uniform, and the inflow pressure of the inflow air is made uniform. It is possible to equalize the inflow velocity of the external air in the exhaust part and to increase the average velocity.
On the other hand, when the suction fan is operated, the pressure distribution in the vicinity of the air intake/suction/exhaust part in the air flow part is made uniform, and the outflow pressure of the inflow air is made uniform. It is possible to equalize the outflow velocity of the inflow air and increase the average velocity.
Therefore, it is possible to provide a high-performance air suction and purification device excellent in the performance of sucking external air and the performance of discharging inflow air by the air suction and exhaust section.

Further, an air suction purification device according to a tenth aspect of the present invention is the configuration of the air suction purification device according to the eighth aspect, wherein the partition holding portion is adapted to rapidly inflow from the air flowing portion to the connection port. It is configured to have a pressure loss reducing portion that prevents an increase in pressure loss due to inflow of air or an increase in pressure loss due to sudden inflow of air from the connection port into the air flow portion.

With the above-described configuration, when the exhaust fan is in operation, the exhaust fan draws in external air, and the inflow air that has flowed in from the air intake/exhaust unit passes through the air flow unit and flows through the connection port. When flowing into the air purification unit, the pressure loss reduction unit is configured between the air flow unit and the connection port, and at least one of the air flow unit, the connection port, and the air purification unit. or prevent a sudden increase in pressure loss in one or more of the air flow section, the connection port, and the air purification section, thereby reducing the flow rate of the inflow air. can be prevented, it is possible to realize a high-performance air suction purification device having excellent external air intake performance and purified air exhaust performance.

Further, when the suction fan is in operation, external air is sucked from the second air inlet, and the incoming air passes through the air purification unit and flows into the air flow unit through the connection port. When doing so, the pressure loss reduction section is configured between the air flow section and the connection port to prevent a sudden pressure increase at one or more of the air flow section, the connection port, and the air purification section. or prevent a rapid increase in pressure loss at one or more of the air flowing portion, the connection port, and the air cleaning portion, thereby preventing a decrease in the flow rate of the inflowing air. Therefore, it is possible to realize a high-performance air suction purification device with excellent exhaust performance.
Therefore, it is possible to provide a high-performance air suction and purification device having excellent external air intake performance and inflow air exhaust performance due to the pressure loss reduction section.

Further, an air suction purification device according to an eleventh aspect of the present invention is the configuration of the air suction purification device according to the eleventh aspect, wherein the shielding plate is stopped by a shielding plate moving mechanism such as a hinge or a slide mechanism. The air flow of the second air inflow portion or the first purified air discharge portion disposed on the upper surface of the fan is substantially shielded.

With the above-described configuration, a simple and smooth switching operation becomes possible, making it possible to provide a highly reliable air suction purification device.

Further, in the air suction purification device according to the twelfth aspect of the present invention, the deep ultraviolet light emitting device is the germicidal lamp in the configuration of the air suction purification device according to the first aspect, the fourth aspect, and the eighth aspect. Alternatively, an LED is used as the light source, and the emission wavelength is in the range of 180 nm to 350 nm.

With the above-described configuration, it is possible to realize a deep ultraviolet light emitting device that is excellent in emission wavelength, illuminance, emission life, heat generation, emission performance, sterilization or inactivation performance, and is highly reliable and has excellent sterilization or inactivation performance. It becomes possible to provide a suction purification device.

Further, an air suction purification device according to a thirteenth aspect of the present invention is the air suction purification device according to the first aspect, the fourth aspect, and the eighth aspect, wherein the exhaust fan and the suction fan are axially Make it a flow fan.

With the configuration described above, it is possible to provide an air suction purification device that is excellent in flow rate, quietness, and cost.

An air suction purification device according to a fourteenth aspect of the present invention is the air suction purification device according to the first aspect, the fourth aspect, and the eighth aspect, wherein the screen portion and the air purification portion are They are detachable and mutually movable.

With the configuration described above, it is possible to provide an air suction and purification device that is excellent in ease of assembly and mobility.

Further, an air suction purification device according to a fifteenth aspect of the present invention is the configuration of the air suction purification device according to the first aspect, the fourth aspect, and the eighth aspect, wherein the screen portion and the screen holding portion are plates. It consists of a single piece or a single piece.

With the above-described structure, it is possible to provide an air suction purification device that is relatively lightweight, easy and inexpensive to assemble with acrylic or molded with resin, and that is excellent in portability and cost.

Further, an air suction purification device according to a sixteenth aspect of the present invention is the configuration of the air suction purification device according to the first aspect, the fourth aspect, or the eighth aspect, wherein the partition portion or the partition holding portion A mass balance is configured to increase the mass and prevent the screen from being lifted by the wind pressure of the inflowing air.

With the above-described configuration, the air pressure of the inflowing air prevents the screen portion and the screen holding portion from floating, and the gap between the bottom surface of the screen holding portion and the top surface of the air cleaning portion can be reduced. It is possible to provide a high-performance air suction purification device that prevents the decrease in the flow rate of the inflow air.

Further, an air suction purification device according to a seventeenth aspect of the present invention is the configuration of the air suction purification device according to the first aspect, the fourth aspect, and the eighth aspect, wherein the air flowing into the air flowing portion is It is configured to have a flow rate adjusting mechanism for changing the flow rate.

With the above-described configuration, it is possible to change the flow rate of the inflowing air according to the scene and situation of use, and it is possible to provide an air suction and purification device that is excellent in quietness and flow rate characteristics.

Further, according to an eighteenth aspect of the present invention, there is provided an air suction purification device according to the first aspect, the fourth aspect, and the eighth aspect of the air suction purification device, wherein the upper end of the screen has a height of It is 5 cm to 50 cm from the ground surface.

With the above-described configuration, it is possible to select the optimum height of the upper end of the screen part in consideration of the user's height, mobility, usability when sucking droplets and when discharging purified air. , it is possible to provide an air suction purification device suitable for the application.

Further, an air suction purification device according to a nineteenth aspect of the present invention is the configuration of the air suction purification device according to the first aspect, the fourth aspect, and the eighth aspect, wherein the height of the pressure loss reducing portion is 5 mm to 40 cm.

With the above-described configuration, it is possible to prevent a sudden increase in pressure loss at one or more of the air flow portion, the connection port, and the air purification portion, and the high-performance air with excellent fluidity of the inflow air. It becomes possible to realize a suction purification device.

Further, an air suction purification device according to a twentieth aspect of the present invention is the configuration of the air suction purification devices according to the first aspect, the fourth aspect, and the eighth aspect, wherein the lower portion of the suction fan and the exhaust fan A reflection reducing portion for preventing leakage of deep ultraviolet rays is disposed at one or more locations of the lower portion of the connection port and the upper portion of the connection port.

With the above-described configuration, it is possible to greatly reduce the leakage of deep ultraviolet rays to the outside, and to realize a highly safe and high-performance air suction purification device.

Further, an air suction purification device according to a twenty-first aspect of the present invention is the structure of the air suction purification device according to the first aspect, the fourth aspect, and the eighth aspect, in which, around the deep ultraviolet light emitting device, A reflective wall flow path is formed by arranging a reflective wall that reflects at least 30% or more of the luminous flux of the emission wavelength of deep ultraviolet rays.

With the above-described configuration, it is possible to greatly improve the average illuminance of deep ultraviolet rays in the reflective wall flow path and significantly reduce the unevenness of the illuminance of deep ultraviolet rays in the reflective wall flow path. And it is possible to realize an air suction purification device that is excellent in virus sterilization or inactivation performance.

With these configurations, the air suction purification device is used to efficiently remove viruses and germs in the room, and viruses and germs contained in coughs and sneezes are also removed efficiently and precisely immediately after they are released into the air. It is possible to greatly reduce the risk of being infected with a virus, and by making it portable, it is possible to realize safer and more secure meetings, meetings, work, customer service, etc.

Embodiment of the present invention

An air suction purification device according to an embodiment (hereinafter simply referred to as an embodiment) of the present invention will be described below with reference to the drawings. In addition, hereinafter, the same or corresponding constituent members are denoted by the same reference numerals throughout all the drawings, and redundant description of the constituent members with the same numerals is omitted.

(Embodiment 1)
An air suction purification device 1 according to Embodiment 1 will be described with reference to FIGS. 1 to 5. FIG. 1 to 3 are schematic diagrams showing an example of the configuration of an air suction purification device 1 according to Embodiment 1. FIG. FIG. 4 is a diagram showing the flow velocity distribution in the flow path of the inflow air 9 of the air suction purification device 1 after performing CFD (fluid analysis using a computer) in the configuration of the air suction purification device 1 according to the first embodiment. 5 is a diagram showing the pressure distribution in the flow path of the inflow air 9 of the air suction purification device 1 by performing CFD (fluid analysis using a computer) in the configuration of the air suction purification device 1 according to the first embodiment. .

FIG. 1 shows a perspective view (a) of an air suction purification device 1 according to Embodiment 1, and a schematic side view (a cross-sectional view of a substantially central portion of an air flowing portion 3) (b). FIG. 2 shows a schematic diagram of a cross-sectional view (approximately the center of the air flow section 3) of the side surface of the air suction purification device 1 according to Embodiment 1. As shown in FIG. FIG. 3 shows a configuration example of the reflection reducing section 17 in the air suction device 1 according to the first embodiment.

As shown in FIGS. 1 to 3, the air suction purification device 1 has a first air inflow portion 4 for inflowing external air, the first air inflow portion 4 at the upper end, and the first air inflow portion 4 inside. A screen part 2 having an air flow part 3 for flowing the inflow air 9 from the screen part 2, and the inflow air 9 flowing from the screen part 2 and sterilizing or inactivating various bacteria and viruses contained in the inflow air 9 by deep ultraviolet rays. a deep ultraviolet light emitting device 11 arranged in the air purification unit 10 and emitting deep ultraviolet rays; , a connection port 8 arranged on the upper surface of the air purification unit 10 and through which the inflow air 9 from the air flow unit 3 flows into the air purification unit 10; and a first purified air discharge portion 13 for discharging the inflowed air 9, which is arranged in the vicinity of the first purified air discharge portion 13, and external air is sent from the first air inflow portion 4 through the air flow portion 3 to the air purification portion. 10 is composed of an exhaust fan 12 that draws in air.

In addition, the connection port 8 is formed substantially at the end of the air purification unit 10, and the inflow air 9 that has flowed into the air purification unit 10 from the connection port 8 passes near the deep ultraviolet light emitting device 11 while discharging the first purified air. It is discharged from the part 13 .
Further, the first air inflow part 4 is provided with an inflow pressure equalizing port 6 for equalizing the inflow pressure of the inflow air 9 and making the suction speed of the outside air uniform. On the other hand, the screen holding part 5 includes a pressure loss reducing part 7 in order to prevent the inflow air 9 from suddenly flowing into the connecting port 8 from the air flowing part 3 and increasing the pressure loss. The contact between the upper surface of the screen 10 and the lower surface of the screen holder 5 makes it difficult for the inflow air 9 to leak to the outside.

Around the deep ultraviolet light emitting device 11 arranged in the air purification unit 10, a light beam with a deep ultraviolet light emission wavelength (in the case of a germicidal lamp, a light beam distributed in the range of 200 nm to 300 nm, with the highest light intensity or illuminance around 250 nm). A reflecting wall channel 14 is formed by arranging a reflecting wall 16 that reflects at least 30% of the light. In general, the illuminance (mW/cm ² ) sharply decreases as the distance from the deep ultraviolet light emitting device 11 increases. By multiple reflection of the deep ultraviolet rays from the deep ultraviolet light emitting device 11 by the reflecting wall 16, the illuminance variation in the passage of the inflowing air 9, which is the internal space of the reflecting wall passage 14, is reduced and the average value of illuminance is increased. It will be done.

The sterilization performance and deactivation performance of the inflowing air 9 passing through the reflecting wall flow path 14 become higher as the cumulative irradiation dose increases, and when the cumulative irradiation dose falls below a predetermined irradiation dose, sufficient sterilization performance and deactivation performance are achieved. will not be obtained. The integrated dose J (J/m2) is calculated by J=dt×I=(L/U)×I. At this time, L (m): channel length (length of reflecting wall channel 14), I (W/m ² ): UV irradiation amount, U (m/s): flow velocity, dt: unit time (UV irradiation time).
Areas where the flow velocity of the inflowing air 9 passing through each area of the reflective wall channel 14 is made uniform as much as possible, the integrated irradiation amount composed of the flow velocity and the ultraviolet irradiation amount is made uniform as much as possible, and the integrated irradiation amount is locally reduced. is an important item in maintaining bactericidal performance and inactivation.
By providing the reflective wall 16, it is possible to averagely improve the cumulative irradiation amount of ultraviolet rays in the air purifying section 10, thereby greatly improving the sterilization of germs and the inactivation of viruses. The reflectance of the reflecting wall 16 at the emission wavelength of 200 nm to 300 nm is desirably 70% or more, but there is no problem even if it is less than that.

In FIGS. 1 to 3, the inflow air 9 that has flowed in from the first air inflow portion 4 passes through the air flow portion 3 and passes through the connecting portion port 8 to be reflected in the air purification portion 10 . It flows into the wall channel 14 . The bacteria and viruses contained in the inflowing air 9 are irradiated with deep ultraviolet rays emitted from the deep ultraviolet light emitting device 11 inside the reflective wall flow path 14, and the ultraviolet rays are irradiated for a certain period of time. / cm ² or more) to sterilize or inactivate various bacteria and viruses, and collect and sterilize these various bacteria and viruses. released to the outside. At this time, it is desirable that each channel through which the inflow air 9 flows is close to a closed state without leakage of the inflow air 9 as much as possible.

The suction force for sucking external air and the flow rate of the inflow air 9 are determined by the capacity of the exhaust fan 12 (PQ curve) and the flow path of the inflow air 9 (from the first air inflow part 4 to the first purified air discharge part 13). Determined by pressure loss. The inflow velocity of the inflow air 9 at the uniform inflow pressure port 6 is desirably high in order to suck the external air, and the inflow velocity of the inflow air 9 at the uniform inflow pressure port 6 is preferably uniform with small variations.

2 and 3, the configuration of the reflection reduction unit 17 for reducing the amount of light (μW) that leaks to the outside after the deep ultraviolet rays are reflected directly from the deep ultraviolet light emitting device 11 or the reflection channel wall 14 or reflected on the surfaces of various components. , which are arranged below the connection port 8 and the exhaust fan 12. FIG. Since ultraviolet rays (including deep ultraviolet rays) are harmful to the human body, the amount of light leaking to the outside must be kept below a specified level. In addition, ultraviolet rays (deep ultraviolet rays) have been confirmed to have the property of degrading resin, rubber, acrylic, adhesives, etc. when irradiated, not only to reduce the leakage of deep ultraviolet rays to the outside, but also to prevent ultraviolet irradiation deterioration of resin parts. Therefore, it is essential to protect the components from deep UV irradiation.

The reflection reduction part 17 attached to the lower part of the exhaust fan 12 using an axial fan has a function of reducing ultraviolet irradiation to the resin blades of the exhaust fan 12 and reducing ultraviolet leakage to the outside. there is
At this time, the exterior of the exhaust fan 12 mounted in the first embodiment is made of aluminum. Furthermore, if pressure loss is increased by disposing the reflection reducing portion 17 under the exhaust fan 12, an antireflection material 19 that greatly reduces the reflection of ultraviolet rays may be disposed under the exhaust fan 12.

On the other hand, the reflection reducing portion 17 disposed at the exhaust fan one connecting port 8 has the function of reducing ultraviolet irradiation to the screen portion 3 made of acrylic and reducing the leakage of ultraviolet rays to the outside. . In this way, by taking measures against leakage of ultraviolet rays to the outside and measures against irradiation of ultraviolet rays to resin parts, it is possible to realize the air suction purification device 1 excellent in safety and reliability.
The air purifying unit 10, the screen unit 3 and the screen holding unit 5 are detachable and portable. With this configuration, it is possible to realize the air suction purification device 1 with improved mobility, portability, and mobility.

FIG. 4 is a diagram showing the difference in flow velocity distribution in the vicinity of the first air inflow portion 4 in the uniform inflow pressure port 6 by CFD. In FIG. 4(a), there is no inflow pressure equalizing port 6, and in FIG. 4(b), an inflow pressure equalizing port 6 is provided. The inflow pressure equalizing port 6 equalizes the pressure in the vicinity of the first air inflow part 4, so that the flow velocity of the inflow air 9 passing through the inflow pressure equalizing port 6 is equalized and several times faster. I understand.

FIG. 5 shows the result of calculating the pressure loss distribution in the flow path of the inflow air 9 of the air suction purification device 1 by CFD (computer-based fluid analysis). 7A and 7B are diagrams showing the effect of the pressure loss reducing portion 7 formed in the partition holding portion 5. FIG.
FIG. 5(a) shows the calculation results of the pressure distribution when the height dimension of the pressure loss reduction portion 7 is 5 mm, and FIG. 5(b) shows the pressure loss reduction portion 7 having a height dimension of 20 mm. This is the calculation result of the pressure distribution when It can be seen that the pressure change (pressure loss) of the inflow air 9 flowing into the connection port 8 from the air flow portion 3 is greatly improved (decreased). By appropriately setting the dimensions of the pressure loss reduction section 7, it is possible to prevent an increase in the pressure loss in the flow path of the inflow air 9 and increase the flow rate of the inflow air 9, and at the same time, the inflow pressure uniform port 6 can be used. It is possible to increase the flow velocity of the passing inflow air 9 .

Like the air suction purification device 1 shown in Embodiment 1, a screen 3 made of an acrylic plate or the like having a first air inlet 4 (air suction) is placed between two people who are talking face to face. , By sucking the local air (external air) near each other's faces from the first air inflow part 4, it is possible to collect droplets, viruses, various germs, etc. released into the air immediately after they are released. Therefore, the risk of virus infection can be greatly reduced. In addition, with a relatively simple configuration, it prevents droplets that fly out into the air from reaching the conversation partner directly, and sucks and captures droplets that fly out into the air before they float on air currents such as air conditioners. It is possible to provide the air suction purification device 1 that collects, purifies, and sterilizes high-performance droplets.

Since air currents from air conditioners, air purifiers, and movement of people exist in the room, the flow of outside air in the vicinity of the first air inlet section 4 is as far as possible without being affected by these air currents. It is important to control so that it can be sucked.

On the other hand, the air suction purification device 1 is capable of sterilizing or inactivating bacteria and viruses by sucking droplets, viruses, and germs during conversations, coughs, and sneezes through the flow path of the screen part 3 and irradiating them with ultraviolet rays for a certain period of time. Relatively simple and inexpensive to build. In addition, since the connecting port 8 is formed at the end of the air purifier 10 and the inflow air 9 flows from one end of the deep ultraviolet light emitting device 11 and flows to the other end, efficient deep ultraviolet irradiation becomes possible. It is possible to realize an air suction purification device 1 with high performance and miniaturization, and it is possible to carry, move, relocate, and make it mobile, so that the installation cost can be greatly reduced and the risk of virus infection can be greatly reduced. Therefore, the air suction purification device 1 with high performance can be realized.

In the second embodiment, filters are not provided in any of the air flowing section 3, the pressure loss reducing section 7, and the air purifying section 10, which are the flow paths of the inflow air 9. There is no problem even if a filter is arranged in the path.

(Embodiment 2)
Next, the air suction purification device 1 according to Embodiment 2 will be described with reference to FIG. FIG. 6 is a schematic diagram showing an example of the configuration of the air suction purification device 1 according to Embodiment 2.
The perspective view (a) of the air suction purification apparatus 1 which concerns on Embodiment 2, and the schematic diagram (b) of a side view (partially transparent) are shown. A detailed description of the parts having the same configuration as in the first embodiment is omitted.

As shown in FIGS. 6(a) and 6(b), the air suction purification device 1 has a second air inflow portion 18 for inflowing external air, and the inflow air 9 flows in from the second air inflow portion 18. An air purification unit 10 that sterilizes or inactivates various bacteria and viruses contained in the inflowing air 9, a deep ultraviolet light emitting device 11 that is disposed in the air purification unit 10 and emits deep ultraviolet rays. A screen 2 having an air flow section 3 for flowing the inflowing air 9 and having a second purified air discharge section 21 for discharging the inflowing air 9 from the air flow section 9 to the outside at the upper end, and the screen 2 are held. a screen holding part 5 for installing the screen part 2 on the upper surface of the air purification part 10; and a suction fan 15 which is arranged near the second air inlet 18 and causes external air to flow from the second air inlet 18 to the air flow section 3 via the air purification section 10. is configured at substantially the end of the air purification unit 10, and the inflow air 9 that has flowed into the air purification unit 10 from the second air inflow unit 18 passes through the connection port 8 while passing near the deep ultraviolet light emitting device 11. It is configured to flow into the air flow portion 3 and be discharged to the outside from the second purified air discharge portion 21 .

With the above configuration, the external air is sucked by the suction fan 15, and the inflow air 9 that has flowed in from the second air inflow part 18 is purified by the deep ultraviolet light emitted from the deep ultraviolet light emitting device 11 installed in the air purification part 10. It is configured to pass through the pressure loss reduction section 7 and the air flow section 3 via the connection port 8 and be discharged from the second purified air discharge section 21 .

The inflowing air 9 purified by the air purification part 10 and discharged from the second purified air discharge part 21 is flowed near the mouth or nose and sucked as exhaled air, thereby purifying the bacteria and viruses in a state of being sterilized or inactivated. By taking the air 9 into the body, it is possible to greatly reduce the risk of health damage caused by bacteria and infection caused by viruses. In particular, it can be carried to various places such as indoors with poor ventilation, eating and drinking establishments, places where a lot of droplets fly, outdoors where there is a risk of infection, and sucking inflowing air purified by the air suction purification device 1 as exhalation. It is possible to greatly reduce the risk of virus infection in daily life.

In addition, a uniform discharge pressure port 20 is provided to equalize the discharge pressure of the inflow air 9 discharged from the second purified air discharge part 21 and to equalize the discharge speed of the inflow air 9 . The discharge pressure equalizing port 20 equalizes the pressure distribution in the vicinity of the second purified air discharge portion 21 in the air flowing portion 3, and equalizes the outflow pressure of the inflow air 9, so that the inflow air in the second purified air discharge portion 21 It is possible to equalize the outflow velocity of 9 and increase the average velocity.
Furthermore, by widening the interval of the air flow portion 3 and reducing the area of the uniform discharge pressure port 20, the area of only the discharge portion (uniform discharge pressure port 20) for the inflowing air 9 can be reduced. It is possible to reduce the pressure loss in the part 3 as much as possible, efficiently increase the discharge speed of the inflowing air 9, and make it uniform, so that it is possible to provide a high-performance air suction purification device 1 with excellent purification performance. Become.

Further, the screen holding portion 5 has a pressure loss reducing portion 7 that prevents the inflow air 9 from suddenly flowing into the air flowing portion 3 from the connecting port 8 and increasing the pressure loss. With this configuration, when the inflow air 9 that has sucked the outside air passes through the air purification unit 10 and flows into the air flow unit 3 via the connection port 8, the air flow unit 3 and the connection port 8 are separated from each other. The pressure loss reduction unit 7 is configured in the air flow unit 3, the connection port 8, and the air purification unit 10 to reduce a sudden pressure increase at one or more locations, or the air flow unit 3, the connection port 8, the air purification It is possible to prevent a sudden increase in pressure loss in one or more places of the part 10, and it is possible to prevent a decrease in the flow rate of the inflow air 9, so the high-performance air suction purification device 1 with excellent exhaust performance. can be realized.

The configurations and functions of the ultraviolet light emitting device 11, the reflecting wall channel 14, the reflecting wall 16, the reflection reducing portion 17, and the antireflection material 19 in Embodiment 2 are the same as those in Embodiment 1, and thus description thereof is omitted.
In the second embodiment, filters are not provided in any of the air flowing section 3, the pressure loss reducing section 7, and the air purifying section 10, which are the flow paths of the inflow air 9. There is no problem even if a filter is arranged in the path.

(Embodiment 3)
Next, the air suction purification device 1 according to Embodiment 3 will be described with reference to FIGS. 7 to 9. FIG. 7A and 7B are schematic diagrams showing an example of the configuration of the air suction purification device 1 according to Embodiment 3. FIG. FIG. 2B is a schematic diagram (b) of a cross-sectional view of a substantially central portion). In FIG. 7, the detailed description of the parts having the same configuration as those of the first and second embodiments will be omitted.

Further, the air suction purification device 1 according to the third embodiment is the air suction purification device 1 having the configuration of the first embodiment shown in FIGS. , the pressure loss reduction unit 7 is arranged above the first purified air discharge unit 13, and the upper surface of the connection port 8 is opened to the external air so that the external air can flow in. External air is introduced from the connection port 8, and the inflow air 9 that has flowed in from the connection port 8 passes through the vicinity of the deep ultraviolet light emitting device 11 to sterilize and inactivate various bacteria and viruses contained in the inflow air 9, and the exhaust fan 12 and the first The inflow air 9 that has flowed into the pressure loss reduction unit 7 via the purified air discharge unit 13 and has flowed into the pressure loss reduction unit 7 flows into the air flow unit 3, and the first air in which the inflow pressure equalizing port 6 is arranged. Air is discharged from the inflow portion 4 to the outside, and the flow direction of the inflow air 9 in the air flow portion 3 is reversed by moving the screen portion 2 and the screen holding portion 5 on the upper surface of the air purification portion 10.
At this time, since the inflow air 9 passes through, the contact surface between the upper surface of the air purification unit 10 and the lower surface of the screen holding unit 5 having the pressure loss reduction unit 7 is almost sealed without leakage of the inflow air 9 as much as possible. is desirable.

With the above configuration, external air can be sucked from the connection port 8 by the suction force of the exhaust fan 12, and the inflow air 9 flowing from the connection port 8 is purified by the air purifier 10 and is transferred to the pressure loss reduction unit 7 by the exhaust fan 12. influx. The inflow air 9 that has flowed into the pressure loss reducing portion 7 passes through the air flowing portion 3 and is exhausted to the outside through the inflow pressure equalizing port 6 and the air inflow portion 3 .
At this time, by utilizing the flow direction of the exhaust fan 12 and disposing the pressure loss reduction unit 7 above the exhaust fan 12, it is possible to reverse the direction of the inflow air 9 flowing through the air flow unit 3 by 180 degrees. Therefore, the air suction purification device 1 of Embodiment 1 shown in FIGS. It becomes possible to utilize it as the air suction purification device 1 of Embodiment 3 shown in FIG.

Purified air (inflow air 9) discharged from the first air inflow part 4 is allowed to flow in the vicinity of the mouth, nose, etc., so that the purified air can be exhaled. , etc., can significantly reduce the risk of virus infection. Furthermore, because of its small configuration, it can be installed in various places and carried, so that one or more people can take measures against droplets and viruses.

FIG. 8 shows the result of CFD calculation of the flow velocity distribution of the inflowing air 9 inside the flow path of the air suction purification device 1 when the flow direction of the inflow air 9 is reversed 180 degrees in the air suction purification device 1 in Embodiment 3. It is a diagram showing.
FIG. 8A shows a structure similar to that of the first embodiment, in which external air flows in from the first air inlet 4, and the inflow air 9 is discharged to the outside from the first purified air outlet 13 via the exhaust fan 12. Fig. 3 shows the flow velocity distribution of the flow path through which the

In FIG. 8B, the screen 2 and the screen holding part 5 are moved from the first embodiment, the upper part of the connection port 8 is opened to the outside air, and the screen holding part 3 is positioned directly above the first purified air discharge part 13. FIG. 10 is a diagram showing the result of computation by CFD of the flow velocity distribution of the inflowing air 9 inside the flow path of the air suction purification device 1 in the configuration in which the pressure loss reduction unit 7 is arranged.

The inflow air 9 that has flowed in from the connection port 8 flows into the reflecting wall flow path 14 of the air cleaning section 10 , and flows into the pressure loss reduction section 7 via the exhaust fan 12 from the first receiving hill air discharge section 13 . The inflow air 9 that has flowed into the air flow section 3 passes through the air flow section 3 and flows out from the first air flow section 4 to the outside.
8(a) and 8(b), due to the effects of the pressure loss reducing portion 7 and the inflow pressure equalizing port 6, external air is sucked from the first air inflow portion 4 and purified air (inflow) from the first air inflow portion 4 It can be seen that the discharge of the air 9) is several times faster than the flow velocity of the air flow part 3, and the flow velocity is several meters, and it can be operated without problems.

FIG. 9 is a diagram showing an example of use of the air suction purification device 1, and FIG. It shows a configuration in which droplets and external air containing various germs and viruses that exist between them are sucked in, purified, and then released into the air. On the other hand, FIG. 9(b) draws the air suction purification device 1 in front of the user, sucks the droplets and external air containing various germs and viruses, purifies it with the air purification unit 10, and then releases the purified air to the mouth and nose. , and the purified air is directly sucked in as exhaled air.

In this way, one exhaust fan 12 has two functions of sucking droplets from the first air inlet 4 and discharging purified air from the first air inlet 4. A lightweight, low-cost, high-performance, and portable air suction purification device 1 can be realized.

(Embodiment 4)
Next, an air suction purification device 1 according to Embodiment 4 will be described with reference to FIGS. 10 to 12. FIG. 10A and 10B are schematic diagrams showing an example of the configuration of an air suction purification device 1 according to Embodiment 4, and a perspective view (a) and a side view (partially transparent) of the air suction purification device 1 according to Embodiment 4. FIG. The schematic diagram (b) of is shown. 11(a) and 11(b) are perspective views of the structure of the hinge portion 26 as an example of the mechanism for disposing the shielding plate 25. FIG. 12(a) and 12(b) show perspective views of the air suction purification device 1 as an operation example of the shield plate 25. FIG.
In FIGS. 10 to 12, detailed descriptions of the same configurations as in Embodiments 1, 2, and 3 will be omitted.

As shown in FIGS. 10(a), 10(b) and 12(a), the air suction purification device 1 has an air intake/exhaust section 22 for inflowing external air, an air intake/exhaust section 22 at the upper end, and an internal air intake/exhaust section. A screen part 2 having an air flow part 3 for flowing the inflow air 9 from the air intake and exhaust part 22, and the inflow air 9 flows from the screen part 2, and the virus contained in the inflow air 9 is sterilized or inactivated by deep ultraviolet rays. an air purifying unit 10 for performing air purifying, a deep ultraviolet light emitting device 11 disposed in the air purifying unit 10 and emitting deep ultraviolet ray, and a screen 2 for holding the screen 2 and installing the screen 2 on the upper surface of the air purifying unit 10 a partition holding portion 5; a connection port 8 disposed on the upper surface of the air purification portion 10 for allowing the inflow air 9 from the air flowing portion 3 to flow into the air purification portion 10; A first purified air discharge section 13 for discharging the inflow air 9 purified in the section 10, and a first purified air discharge section 13 disposed near the first purified air discharge section 13 for discharging the outside air from the air intake/exhaust section 22 through the air flow section 3. It is composed of an exhaust fan 12 that sucks into the air purification unit 10, and the connection port 8 is formed at substantially the end of the air purification unit 10, and the inflow air 9 that has flowed into the air purification unit 10 from the connection port 8 is emitted by the deep ultraviolet light emitting device. The air suction purification device 1 configured to discharge the air from the first purified air discharge portion 13 while passing the vicinity of 11 is one operation mode.

Further, as shown in FIGS. 10(a), (b) and 12(b), the air suction purification device 1 has a second air inflow portion 18 for inflowing external air, and the second air inflow portion 18 inflows air from the second air inflow portion 18. An air purifying unit 10 that receives air 9 and sterilizes or inactivates various bacteria and viruses contained in the inflowing air 9 with deep ultraviolet rays, a deep ultraviolet light emitting device 11 that is disposed in the air purifying unit 10 and emits deep ultraviolet rays; a screen portion 2 having an air flowing portion 3 for flowing the inflowing air 9 from the air purifying portion 10 therein, and having an air intake/exhausting portion 22 for discharging the inflowing air 9 from the air flowing portion 3 to the outside; A screen holding part 5 for holding the screen part 2 and for setting the screen part 2 on the upper surface of the air purification part 10, and a screen holding part 5 arranged on the upper surface of the air purification part 10 to make the inflow air 9 from the air purification part 10 flow. A connection port 8 for flowing into the unit 3, and a second air inlet 18 and an exhaust fan 12 are arranged to allow external air to flow from the second air inlet 18 to the air flow unit 3 via the air cleaning unit 10. The connection port 8 is formed at substantially the end of the air purification unit 10, and the inflow air 9 flowing into the air purification unit 10 from the second air inflow unit 18 is supplied to the deep ultraviolet light emitting device 11. The other operation mode is the air suction and purification device 1 configured such that the air passes through the connection port 8 while passing through the vicinity, flows into the air flowing portion 3, and is discharged to the outside from the air intake/exhaust portion 22. FIG.

In the air suction and purification device 1 having the two operation modes described above, either the exhaust fan 12 or the suction fan 15 is operated by the changeover switch 24, and the second fan is arranged on the upper surface of the fan whose operation is stopped. Equipped with a shielding plate 25 for substantially shielding the flow of air in the second air inlet 18 or the first purified air discharge part 13, the air flow in the air intake/exhaust part 22 is deflected approximately 180 degrees by the operation of the suction fan 15 or the exhaust fan 12. It is configured to be inverted.

With the above configuration, when the suction fan 15 is stopped and the exhaust fan 12 is operated, the outside air is sucked from the air intake/exhaust part 22, and the inflow air 9 passes through the air flow part 3 and the connection port 8 and flows into the air purifier 10 through the The inflow air 9 that has flowed into the air purifier 10 is purified by a deep ultraviolet light emitting device 11 that is disposed in the air purifier 10 and emits deep ultraviolet rays, and is discharged to the outside by an exhaust fan 12 . At this time, the second air inflow portion 18, which is the external air inflow portion of the suction fan 15, is blocked by the shielding plate 25 so that the external air does not flow in. As shown in FIG.

On the other hand, when the exhaust fan 12 is stopped and the suction fan 15 is operated, the outside air is sucked by the suction fan 15 and the inflow air 9 flows into the air cleaning section 10 . The inflow air 9 that has flowed into the air purification unit 10 is purified by a deep ultraviolet light emitting device 11 that is disposed in the air purification unit 10 and emits deep ultraviolet light, passes through the connection port 8 and flows into the air flow unit 3 .

The inflow air 9 that has flowed into the air flowing portion 3 is discharged to the outside through the air intake/exhaust portion 22 . At this time, the first purified air discharge portion 13, which is the outflow portion of the exhaust fan 12, is blocked by the shield plate 25 so that the inflow air 9 does not flow out.

A configuration in which the direction of the inflowing air 9 flowing through the air flow section 3 can be reversed by approximately 180 degrees using the flow directions of the exhaust fan 12 and the suction fan 15, and droplets are sucked from the air suction and exhaust section 22; It is possible to utilize the air suction purification device 1 by selectively using the configuration for discharging the purified air from the air intake/exhaust part 22 .

By collecting droplets containing germs and viruses from the air intake/exhaust part 22, it is possible to greatly reduce the risk of virus infection. In addition, by flowing the purified air discharged from the air intake/exhaust part 22 near the mouth and nose, the purified air can be exhaled. It is possible to greatly reduce the risk of infection with viruses such as. By constructing the air suction purification device 1 without moving the components in this way, it is possible to perform the two functions with stable operation, and the highly reliable air suction purification device 1 can be realized.

Furthermore, there is no air leakage from the second air inlet portion 18 when the suction fan 15 is stopped, and air leakage from the first purified air discharge portion 13 when the exhaust fan 12 is stopped. Therefore, it is possible to prevent a large decrease in the flow rate of the inflow air 9, and it is possible to provide a high-performance air suction purification device 1 with a large flow rate of the inflow air 9.
FIG. 11 is a diagram showing an example of a mechanism for moving the shielding plate 25, in which a hinge portion 26 fixed to the shielding plate 25 is rotatably held by a hinge rotation portion 27. As shown in FIG.

In Embodiment 4, the first purified air discharge section 13 or the second air flow section 18 is substantially shielded by the hinge mechanism, but a slide mechanism or other mechanism capable of shielding may be used without any problem.

In Embodiments 1 to 4, the air purifier 10 is provided with the deep ultraviolet light emitting device 11, but it is also possible to arrange a filter in the flow path of the inflow air 9 from the air inlet to the air outlet. good. At this time, the deep ultraviolet light emitting device 11 may be installed together, or the deep ultraviolet light emitting device 11 may be omitted.
In Embodiments 1 to 4, the uniform inlet pressure port 6, the uniform outlet pressure port 20, and the uniform inlet and outlet pressure port 23 may or may not be provided. Moreover, the shape of the hole of the opening may be circular, or may be rectangular as long as it has a hole.

In Embodiments 1 to 4, the width of the flow path between the two surfaces of the airflow portion 3 is preferably 5 mm or more from the viewpoint of preventing an increase in pressure loss. Translucent is desirable, but non-transparent materials such as metal or wood are also acceptable.
In Embodiments 1 to 4, the screen portion 2 and the screen holding portion 5 are made of a plate material such as acrylic, but there is no problem if they are made of metal or molded resin.
In addition, in Embodiments 1 to 4, the deep ultraviolet light emitting device is a germicidal lamp, but there is no problem if it is a light source that emits deep ultraviolet light, such as an LED or a laser.

Incidentally, in Embodiments 1 to 4, there is no problem even if the number of revolutions of the exhaust fan 12 and the suction fan 15 are adjusted to adjust the flow rate of the inflow air 9 .
In Embodiments 1, 2, and 4, the screen holding portion 5 is provided with the pressure loss reducing portion 7, but the screen holding portion 5 may be configured without the pressure loss reducing portion 7. .
In Embodiments 1 to 4, the exhaust fan 12 and the suction fan 15 are axial fans, but other fans may be used as long as they have a suction function.

In Embodiments 1 to 4, the screen portion 2, the screen holding portion 5, and the air purifying portion 10 may be fixed with screws or an adhesive, or may be separately configured and movable. .
In Embodiments 1 to 4, the screen portion 2 and the screen holding portion 5 are made of acrylic or the like. The lower surface of the air purifier 10 and the upper surface of the air purification unit 10 may be configured to increase the degree of close contact, and may also be configured so that they are not lifted by the wind pressure of the inflowing air 9 .
In Embodiments 1 to 4, the screen portion 2, the screen holding portion 5, the air flow portion 3, and the pressure loss reduction portion 7 are made of plate material such as acrylic and assembled using screws or the like. It is good also as integral molding, such as.

The exhaust fan 12, the suction fan 15, and the deep ultraviolet light emitting device 11 may be powered by a 100V power source, or may be equipped with a battery to supply power.
From the above description many modifications and other embodiments of the invention will be apparent to those skilled in the art. Accordingly, the above description is to be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the invention. Substantial details of construction and/or function may be changed without departing from the spirit of the invention.

The present invention uses an air suction purification device installed on a desk or table, sucks air containing various bacteria and viruses floating in the air from an air inflow part configured in a screen part, and removes air in the air with an air purification part. After sterilizing and inactivating various germs and viruses, they are released into the air again, or the purified air is released around the mouth and nose from the air outflow part configured in the screen. It is an air suction purification device that sterilizes and inactivates various bacteria and viruses that are in the air, and has excellent reliability, economic efficiency, performance, and portability. It will be an effective technology for doing so, and it will be possible to use it in workplaces, convenience stores, conference rooms, restaurants, assembly halls, various meetings, concert halls, etc.

1 Air suction purification device 2 Screen part 3 Air flow part 4 First air inflow part 5 Screen holding part 6 Inflow pressure uniform port 7 Pressure loss reduction part 8 Connection port 9 Inflow air 10 Air purification part 11 Deep ultraviolet light emitting device 12 Exhaust fan 13 First purified air discharge part 14 Reflection wall channel 15 Suction fan 16 Reflection wall 17 Reflection reduction part 18 Second air inflow part 19 Antireflection material 20 Exhaust pressure uniform port 21 Second purified air discharge part 22 Air intake/exhaust part 23 Uniform inlet/outlet pressure port 24 changeover switch 25 shielding plate 26 hinge portion 27 hinge rotating portion

Claims (21)

a first air inflow portion for inflowing external air; a screen portion having the first air inflow portion at its upper end and an air flow portion for flowing the inflow air from the first air inflow portion; an air purifying unit for sterilizing or inactivating various bacteria and viruses contained in the inflowing air with deep ultraviolet rays, and a deep ultraviolet light emitting device disposed in the air purifying unit for emitting deep ultraviolet rays. a screen holding part for holding the screen part and installing the screen part on the upper surface of the air purification part; A connection port for flowing into a purification unit, a first purified air discharge unit arranged in the air purification unit and discharging the inflowing air purified by the air purification unit, and a vicinity of the first purified air discharge unit and sucks the external air from the first air inflow portion to the air purification portion via the air flow portion, and the connection port is formed substantially at an end portion of the air purification portion. and the inflow air that has flowed into the air purification unit from the connecting port is discharged from the first purified air discharge unit while passing near the deep ultraviolet light emitting device. 2. The air suction purification device according to claim 1, wherein said first air inlet has an inlet pressure uniform port for uniformizing the inlet pressure of said inflow air and uniformizing the suction speed of said external air. . 2. The air suction purification device according to claim 1, wherein said screen holding portion has a pressure loss reducing portion for preventing an increase in pressure loss due to sudden inflow of said inflowing air from said air flowing portion to said connecting port. . an air purification unit that has a second air inflow part for inflowing external air, and that the inflowing air flows in from the second air inflow part and sterilizes or inactivates various bacteria and viruses contained in the inflowing air with deep ultraviolet rays; A deep ultraviolet light emitting device disposed in the air purifying section for emitting deep ultraviolet light, and an air flowing section for flowing the air flowing in from the air purifying section, and the air flowing in from the air flowing section is provided at the upper end. A screen part having a second purified air discharge part for discharging air to the outside, a screen holding part for holding the screen part and installing the screen part on the upper surface of the air purification part, and the air purification part. a connecting port disposed on an upper surface for allowing the inflow air from the air purifying section to flow into the air flow section; and a connection port disposed near the second air inflow section for allowing the external air to It is composed of a suction fan that allows the air to flow into the air flow section through the air purification section, and the connection port is disposed substantially at the end of the air purification section and flows into the air purification section from the second air inlet section. The inflow air passes through the connection port while passing near the deep ultraviolet light emitting device, flows into the air flow part, and is discharged to the outside from the second purified air discharge part. purifier. 5. The apparatus according to claim 4, further comprising a discharge pressure equalizing port for equalizing discharge pressure of said inflowing air discharged from said second purified air discharge part and equalizing discharge speed of said inflowing air. Air suction purification device. 5. The air suction purification according to claim 4, wherein the screen holding portion has a pressure loss reducing portion for preventing the inflow air from suddenly flowing into the air flowing portion from the connecting port and increasing the pressure loss. Device. The screen portion and the screen holding portion are moved on the upper surface of the air purifying portion to dispose the pressure loss reducing portion above the first air discharge portion, and the upper surface of the connecting port is opened to the external air. The external air is allowed to flow in from the connection port by allowing the external air to flow in, and the inflow air that has flowed in from the connection port passes near the deep ultraviolet light emitting device and is contained in the inflow air. and viruses are sterilized and inactivated and flowed into the pressure loss reduction section via the exhaust fan and the first purified air discharge section, and the inflow air that has flowed into the pressure loss reduction section flows into the air flow section The air flows in and is exhausted to the outside from the first air inflow portion provided with the uniform inflow pressure port, and the partition portion is moved on the upper surface of the air cleaning portion, so that the inflow in the air flow portion 2. The air suction purification device according to claim 1, wherein the direction of air flow is reversed. an air intake/exhaust portion for inflowing outside air; a screen portion having the air intake/exhaust portion at the upper end thereof and an air flow portion for flowing the inflowing air from the air intake/exhaust portion; An air purifying unit that receives inflowing air and sterilizes or inactivates viruses contained in the inflowing air with deep ultraviolet rays, a deep ultraviolet light emitting device that is disposed in the air purifying unit and emits deep ultraviolet rays, and the partition unit. a screen holding part for holding and installing the screen part on the upper surface of the air purification part; a first purified air discharge section disposed in the air purification section for discharging the inflowing air purified by the air purification section; and a connection port disposed in the vicinity of the first purified air discharge section and the An exhaust fan for sucking outside air from the air intake/exhaust unit to the air purification unit via the air flow unit, and the connection port is formed substantially at an end of the air purification unit and extends from the connection port. an air suction purification device characterized in that the inflowing air that has flowed into the air purification unit passes through the vicinity of the deep ultraviolet light emitting device and is discharged from the first purified air discharge unit; the air purifying unit having two air inflow units, the inflowing air inflowing from the second air inflow unit, and sterilizing or inactivating bacteria and viruses contained in the inflowing air with deep ultraviolet rays; The deep ultraviolet light emitting device is disposed to emit deep ultraviolet light, and the air flow section for flowing the inflow air from the air purification section is provided inside. the screen portion having the air intake/exhaust portion for discharging air into the air; the screen holding portion for holding the screen portion and installing the partition portion on the upper surface of the air purification portion; The connection port, which is arranged to allow the inflow air from the air cleaning section to flow into the air flow section; The suction fan causes the air to flow from the air inflow portion to the air flow portion via the air purification portion, and the connection port is formed substantially at the end of the air purification portion, and the air flows from the second air inflow portion. The inflow air that has flowed into the purification unit passes through the connection port while passing near the deep ultraviolet light emitting device, flows into the air flow unit, and is discharged to the outside through the air intake/exhaust unit. wherein either the exhaust fan or the suction fan is operated by a changeover switch, and the second air disposed on the upper surface of the fan whose operation is stopped Equipped with a shielding plate that substantially shields the flow of air in the inflow portion or the first purified air discharge portion, the air flow in the air intake/exhaust portion is reversed by the operation of the suction fan or the exhaust fan. Small screen type air suction purification device. The inflow pressure of the inflow air to the air intake/exhaust part is made uniform to make the suction speed of the external air uniform, and the discharge pressure of the inflow air discharged from the air intake/exhaust part is made uniform to make the inflow air uniform. 9. The air suction purification device according to claim 8, further comprising an inflow/discharge pressure equalizing port for equalizing the discharge speed of the air. The partition holding portion prevents the inflow air from suddenly flowing into the connection port from the air flow portion to prevent pressure loss from increasing, or prevents the inflow air from suddenly flowing into the air flow portion from the connection port to prevent pressure loss. 9. The air suction purification device according to claim 8, further comprising a pressure loss reducing portion for preventing an increase in loss. The shielding plate is arranged on the upper surface of the fan whose operation is stopped by a shielding plate moving mechanism such as a hinge or a slide mechanism, and the air flow of the second air inflow part or the first purified air discharge part is substantially controlled. 9. The air suction purification device according to claim 8, characterized in that it has a shielding structure. 9. The air suction purification device according to claim 1, wherein the deep ultraviolet light emitting device uses a germicidal lamp or an LED as a light source, and has an emission wavelength of 180 nm to 350 nm. 9. The air suction purification device according to claim 1, wherein said exhaust fan and said suction fan are axial fans. 9. The air suction purification device according to claim 1, wherein said screen and said air purification unit are detachable and movable relative to each other. 9. The air suction and purification device according to claim 1, wherein said screen portion and said screen holding portion are composed of a plate-like member or an integral member. 1, 4, and 5, wherein a mass balance is formed for increasing the mass of the screen portion or the screen holding portion to prevent the screen portion from being lifted by the wind pressure of the inflowing air. Item 9. The air suction purification device according to item 8. 9. The air suction purification device according to claim 1, further comprising a flow rate adjusting mechanism for changing the flow rate of the air flowing into the air flow section. 9. The air suction purification device according to claim 1, wherein the height of the upper end of said screen is 5 cm to 50 cm from the ground surface. 9. The air suction purification device according to claim 1, wherein the height of said pressure loss reducing portion is 5 mm to 40 cm. Claim 1, Claim 4, characterized in that a reflection reducing portion for preventing leakage of deep ultraviolet rays is disposed at one or more of the lower portion of the suction fan, the lower portion of the exhaust fan, and the upper portion of the connection port. and the air suction purification device according to claim 8. Claims 1, 4 and 4, characterized in that a reflecting wall flow path is formed around the deep ultraviolet light emitting device, in which a reflecting wall reflecting at least 30% or more of the luminous flux of the deep ultraviolet light emission wavelength is arranged. Item 9. The air suction purification device according to item 8.

Images