JP2022165354A - Air gate device - Google Patents

Abstract

To provide an air gate device that blocks droplets, etc. by generating a forced air current in one direction from the bottom to the top, and generates safe and secure clean air by removing viruses and bacteria contained in the droplets, in order to prevent droplet infection, etc. to a face-to-face person, etc.SOLUTION: An air gate device comprises a blowout part 4 for blowing air, and a suction part 5 positioned above the blowout part 4 and suctioning air 10 blown out from the blowout part 4; and is composed of a U-shaped body that forms an air curtain through air circulation. A blower 1 for circulating air and air cleaning members 2, 3 are provided in a separate body other than a main body, and three air ducts are provided in a left column 6 of the main body.SELECTED DRAWING: Figure 3

Description

In order to prevent droplet infection etc. to the person facing the other person, etc., the present invention generates a forced air current in one direction from the bottom to the top to block droplets, etc., while removing viruses and bacteria contained in the droplets. The present invention relates to an air gate device with a clean air function that generates safe and secure clean air.

While referring to the prior art disclosed in Patent Documents 1 to 8, the applicant of the present application created a forced air current from the bottom to the top between the person facing the person to block the droplets, while sucking the droplets. In addition to preventing droplet infection by sterilizing bacteria and exhausting clean air, it has a sterilization function that minimizes the parts that require sterilization even when used repeatedly by an unspecified number of people. A patent application was filed with the aim of providing an air curtain device (filed on Jan. 29, 2021 and Mar. 6, 2021).

Japanese Utility Model Laid-Open No. 6-59546 Japanese Patent No. 5105507 Japanese Patent No. 6586180 Utility Model Registration No. 3223623 Japanese Patent No. 6807070 Utility Model Registration No. 3228217 Japanese Patent No. 3099234 Japanese Patent No. 3438107

The applicant of the present application has recently proceeded with further research and development, and has decided to file a patent application for the present invention as an addition to the previous patent application.

A first aspect of the present invention provides a blowout portion for blowing out air, and a suction portion positioned above the blowout portion for sucking in the air blown out from the blowout portion, and forms an air curtain by air circulation. An air gate device consisting of a letter-shaped main body, comprising a blower that circulates air to a blowout part and a suction part, and an air cleaning member that removes viruses and bacteria contained in the circulated air to make clean air. It is characterized by circulating the circulated air.
Here, the substances to be removed by the air curtain include not only viruses and bacteria, but also substances harmful to the human body such as PM2.5, pollen, and house dust, and substances that interfere with social activities. It is not intended to exclude them.
A second aspect of the present invention is the same air gate device characterized in that a blower for circulating air and an air cleaning member are provided in a separate body other than the main body.
The third invention separates the air sucked from two air ducts and the suction part provided at the top of the main body so that the air circulated from the separate body can be evenly blown from the blowing parts provided on the left and right of the main body. This air gate device is characterized in that a total of three air ducts, one air duct for blowing air to the body, are provided on either the left or right pillar of the main body.

The present invention has the following effects.
(1) The airflow in one direction (from bottom to top) blocks the droplets from the person facing the other person, and the droplets are sucked in by the airflow to remove viruses and bacteria. Even in places where you have to remove it, you can prevent droplet infection. Also, compared to partitions, there is no need to wipe off droplets.
(2) Since the blower is located in a place other than the blowout portion and the suction portion, the blowout portion and the suction portion can be made compact. As a result, the entire air gate device can be made slim and lightweight, and the stability when installed is excellent.
(3) Since the blower is located in a place other than the blowout part and the suction part, it can be arranged in a place that does not interfere with the user. This avoids noise and exhaust.

BRIEF DESCRIPTION OF THE DRAWINGS Explanatory drawing explaining 1st Embodiment of this invention. Explanatory drawing explaining 2nd Embodiment of this invention. Explanatory drawing explaining 3rd Embodiment of this invention.

An embodiment of an air curtain device according to the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram showing a first embodiment of an air gate device.
The air gate device shown in FIG. 1 is of an air circulation type.

Here, the air gate device shown in FIG. 1 is formed by molding a metal such as stainless steel or a resin having heat resistance and light resistance, and is framed with a size of, for example, 650 mm in width, 750 mm in height, and 100 mm in depth. Although the predetermined space can be set to have a width of 600 mm and a height of 700 mm, it is not necessary to limit the materials and numerical values shown here.

FIG. 2 is a diagram showing a second embodiment of the air gate device.
The air gate device shown in FIG. 2 is of an air circulation type, and is also a separator type in which a blower for circulating air and an air cleaning member are provided in a separate body other than the main body.
Here, the symbols in FIG. 2 will be explained as follows.
1: Suction motor 2: Biofilter and sterilizing filter 3: Ultraviolet lamp 4: Air outlet 5: Air inlet 6: Hollow left pillar 7: Hollow right pillar 8: Hollow upper horizontal pillar 9: Small hollow tube 10 inside main body :the flow of air

FIG. 3 is a diagram showing a third embodiment of the air gate device.
The air gate device shown in FIG. 3 is the air circulation type+separator type of FIG. 2, but is superior to the air gate device of FIG.
Here, the symbols in FIG. 3 will be explained as follows.
1: Suction motor 2: Biofilter and sterilizing filter 3: Ultraviolet lamp 4: Air outlet 5: Air inlet 6: Hollow left pillar 7: Hollow right pillar 8: Hollow upper horizontal pillar 9: Small hollow tube 10 inside main body : Air flow 11: Right hollow tube air duct (to equalize left and right air pressure)
12: Left hollow tube air duct (to equalize left and right air pressure)
13: shield plate

The air gate device according to the present invention is provided with a fan (blower) driven by a motor. The motor has control means, from which a rotation control signal and electric power are sent, and the number of rotations can be controlled.
In addition, an ultraviolet lamp serving as an air cleaning section may be provided, and a reflecting plate made of aluminum or the like that reflects ultraviolet rays may be provided on the inner peripheral surface. Furthermore, a filter (for example, a biofilter) is installed to collect viruses, bacteria and other impurities.

Therefore, viruses, bacteria, and other impurities contained in the air blown by the fan are extinguished by the ultraviolet rays emitted from the ultraviolet lamps, and any impurities that are not extinguished are filtered out, resulting in clean air. It is returned to the blowout part.

The air gate device according to the present invention has an ultraviolet lamp and a filter as means for removing impurities such as viruses and bacteria, but it is not necessary to have both of them, and either one of them may be provided.
Inside the air gate device, the pressure in the air gate device can be adjusted by an air decompression adjustment valve.

When the air gate device is placed on a dining table or table and the power switch is turned on, the fan rotates and air is blown upward at a predetermined flow rate from the blowing part, and at the same time, air is blown from the suction part at a predetermined flow rate. The sucked air is returned to the blowout part through the circulation passage. In the rectangular space enclosed by the main body, an air curtain is generated by air currents from the bottom to the top. The reason why the airflow is directed from the bottom to the top is that if the airflow is from the top to the bottom, when coughing, sneezing, or the like, the airflow will scatter downward, and air turbulence will easily occur. On the other hand, it is because droplets and the like are easily sucked in from the lower side to the upper side, and the infection prevention effect is high.

Then, when droplets or the like are emitted from the facing person, the droplets or the like are carried by the air current and sucked into the suction portion. Since the airflow is returned to the blowout part through the circulation passage, viruses, bacteria and other impurities contained in the sucked droplets are carried on the airflow and irradiated by the ultraviolet lamp, and most of them are killed (inactivated). )do. Any remaining impurities are then completely removed by the filter.

Although a fan is used in the illustrated embodiment, it is not necessarily limited to a cross fan or a counter-rotating fan, and may be any of a sirocco fan, a turbo fan, a propeller fan, a counter-rotating fan, or the like. A fan may be used.
However, since it is necessary to move the droplets upward by the airflow blown out from the blowing part, it is necessary to increase the flow velocity of the discharged airflow. In addition, in order to absorb all the droplets in the suction part, it is necessary to set the flow velocity of the air to a certain level or higher. You have to choose.

The air gate device according to the present invention is installed in places where people have face-to-face conversations, places where they eat, places where they work closely, places where they work in a limited space under clean air, etc. It is effective for aiming at infection such as droplets.

(First embodiment)
1: Left and right vertical cylinder main body 2: Upper horizontal cylinder main body 3: Air intake fan motor (1 or more locations) (A rotary motor or other motor other than a fan motor is also acceptable.)
4: Air exhaust fan motor (at least one) (other than fan motors such as rotary motors are acceptable)
5: Air discharge window and fins 6: Ultraviolet lamp (type not specified) (location not specified)
7: Air biofilter or sterilizing filter (location not specified)
8: Air pressure regulating valve (not essential)
9: Air flow (arrow)

Claims (3)

An air gate device consisting of a U-shaped main body that forms an air curtain by air circulation, provided with a blowout part for blowing out air and a suction part that is positioned above the blowout part and sucks in the air blown out from the blowout part. There is
Equipped with a blower that circulates air to the blowing part and the suction part, and an air cleaning member that removes viruses and bacteria contained in the circulated air to make clean air,
An air gate device characterized by circulating the circulated air. 2. The air gate device according to claim 1, wherein the blower for circulating air and the air cleaning member are provided in a separate body other than the main body. There are two air ducts to evenly blow out the air circulated from the separate body from the blowing parts provided on the left and right sides of the main body, and one that blows the air sucked from the suction part provided on the top of the main body to the separate body. 3. The air gate device according to claim 2, wherein a total of three air ducts are provided on either the right or left column of the main body.

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