Virus infection preventing apparatus

Abstract

To provide a compact virus infection preventing apparatus capable of effectively preventing virus infection, having high treatment capacity for inactivating viruses and good in operability.SOLUTION: In the virus infection prevention device, the air washing section includes a tubular barrel section having a connection port with the air supply hose at one end and an opening at the other end, a first air supply fan and a first ultraviolet light emitting diode provided in this order inward of the connection port, a second air supply fan and a second ultraviolet light emitting diode provided in this order inward of the opening, and a reflecting mirror between the first ultraviolet light emitting diode and the second ultraviolet light emitting diode. The reflecting mirror has a cylindrical body portion, a first inclined portion provided at one end portion of the cylindrical body portion and substantially matching a light distribution angle of ultraviolet rays emitted from the first ultraviolet ray emitting diode, and a second inclined portion provided at the other end portion of the cylindrical body portion and substantially matching a light distribution angle of ultraviolet rays emitted from the second ultraviolet ray emitting diode.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a virus infection prevention device that continuously supplies clean air in which viruses have been inactivated to a user, or, if the user is infected with a virus, can discharge virus-laden air (exhaled breath) exhaled by the virus-infected person in a virus-inactivated state. [Background technology]

[0002] Although the coronavirus that wreaked havoc on a global scale in recent years is gradually coming to an end, the number of people infected with Ebola hemorrhagic fever, caused by the extremely dangerous Ebola virus, is still increasing in Africa, and medical professionals are continuing to make strenuous efforts to prevent further infections.

[0003] The virus is about 0.1 μm in size, continues to multiply inside the body of an infected person, and is released into the air in feces, urine, or exhaled droplets (about a few μm to a dozen μm in size) or saliva (about tens of μm to a hundred μm in size).

[0004] In this situation, a virus infection prevention device has been developed that irradiates the breath of an infected person with ultraviolet light to inactivate the viruses contained in the breath before releasing it, or takes in air from the atmosphere and irradiates it with ultraviolet light to inactivate the viruses in the air before supplying it to a person's mouth (Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 7296670 Summary of the Invention [Problem to be solved by the invention]

[0006] In workplaces where conventional virus infection prevention devices are actually used, there are no complaints about their performance, but there is a demand for smaller devices so that normal work can be carried out as comfortably and stress-free as possible.

[0007] Furthermore, conventional virus infection prevention devices require different connection positions between the air supply hose and the air cleaning unit depending on whether the device is being used to continuously supply clean, virus-inactivated air to the user, or to exhaust virus-laden air exhaled by a virus-infected person in an inactivated state. This means that further improvements are needed.

[0008] In view of the current situation, the present invention aims to provide a virus infection prevention device that can effectively prevent virus infection, has a high processing capacity for inactivating viruses, is easy to operate, and is compact. [Means for solving the problem]

[0009] The present invention has been invented to solve the problems in the prior art described above, The virus infection prevention device of the present invention comprises: A mouth portion disposed near the mouth of a user; an air cleaning unit that takes in air, irradiates the air that has been taken in with ultraviolet light, and supplies the air that has been irradiated with ultraviolet light to the opening, or discharges the air that has been irradiated with ultraviolet light into the air; an air supply hose that connects the opening and the air cleaning unit; A virus infection prevention device comprising at least The air cleaning unit a cylindrical body portion having a connection port for connecting to the air supply hose at one end and an opening for taking in or discharging the air at the other end; a first air supply fan that is provided further inward than the connection port on one end side of the cylindrical body portion and that takes in the air into the cylindrical body portion and exhausts the air from the cylindrical body portion; a second air supply fan that is provided further inward than the opening on the other end side of the cylindrical body portion and that takes in the air into the cylindrical body portion and exhausts the air from the cylindrical body portion; a first ultraviolet light emitting diode that is provided further inward than the first air supply fan of the cylindrical body portion and that irradiates ultraviolet light onto the air taken into the cylindrical body portion or onto the air discharged from the cylindrical body portion; a second ultraviolet light emitting diode that is provided further inward than the second air supply fan of the cylindrical body portion and that irradiates ultraviolet light onto the air taken into the cylindrical body portion or onto the air discharged from the cylindrical body portion; a reflecting mirror provided between the first ultraviolet light emitting diode and the second ultraviolet light emitting diode in the cylindrical body portion, the reflecting mirror reflecting the ultraviolet light emitted from the first ultraviolet light emitting diode and the second ultraviolet light emitting diode; Equipped with The reflecting mirror is A cylindrical main body portion; a first inclined portion provided at one end of the cylindrical main body and having a light distribution angle substantially matching that of the ultraviolet light emitted from the first ultraviolet light LED; a second inclined portion provided at the other end of the cylindrical main body and having a light distribution angle substantially matching that of the ultraviolet light emitted from the second ultraviolet light-emitting diode; The present invention is characterized by having the following.

[0010] With this configuration, a first ultraviolet light-emitting diode is provided on one end side of the cylindrical body and a second ultraviolet light-emitting diode is provided on the other end side, and further, air can be both taken in and exhausted simply by switching the rotation direction of the first air supply fan and the second air supply fan, resulting in a simple structure that does not require any extra operations and contributes to miniaturization.

[0011] Furthermore, since a first ultraviolet light-emitting diode is provided on one end side of the cylindrical body and a second ultraviolet light-emitting diode is provided on the other end side, ultraviolet light can be irradiated onto the virus-infested air inside the cylindrical body by sandwiching it from both sides, thereby inactivating the virus-infested air more efficiently than before.

[0012] Furthermore, by simply changing the direction of rotation of the first and second air supply fans, this virus infection prevention device can supply the user with air in which viruses have been inactivated, and when worn by a virus-infected person, it can inactivate the air exhaled (exhaled) by the virus-infected person before releasing it into the atmosphere.

[0013] Furthermore, the first and second ultraviolet light-emitting diodes have a fixed output wavelength, are safe and do not pose a risk of ozone generation during emission, and are easy to obtain, which can contribute to reducing manufacturing costs.

[0014] Furthermore, if a reflecting mirror is provided in this manner, ultraviolet light can be irradiated onto the air taken into the air cleaning section without leaking, thereby reliably inactivating viruses in the air or in the exhaled breath.

[0015] Furthermore, if the reflecting mirror has a first inclined portion that approximately matches the light distribution angle of the first ultraviolet light-emitting diode and a second inclined portion that approximately matches the light distribution angle of the second ultraviolet light-emitting diode, ultraviolet light can be efficiently irradiated onto the air taken into the air cleaning section.

[0016] Furthermore, the virus infection prevention device of the present invention comprises: The reflecting mirror is A plate-like body; and an ultraviolet reflective film formed on the surface of the plate-like body.

[0017] With this configuration, it is possible to reliably form an ultraviolet reflective film on the plate-shaped body regardless of its shape, thereby reliably inactivating viruses in the air or exhaled breath.

[0018] Furthermore, the virus infection prevention device of the present invention comprises: In the first ultraviolet light emitting diode and the second ultraviolet light emitting diode, a light distribution lens is provided on the exit surface from which the ultraviolet rays are emitted, The light distribution angle of the ultraviolet light is adjusted by the light distribution lens.

[0019] By using a light distribution lens in this manner, the light distribution angle of the first ultraviolet light-emitting diode and the second ultraviolet light-emitting diode can be adjusted to the desired light distribution angle, thereby allowing ultraviolet rays to be efficiently irradiated onto the air taken into the air cleaning section.

[0020] Furthermore, the virus infection prevention device of the present invention comprises: The ultraviolet light emitted from the first ultraviolet light emitting diode and the second ultraviolet light emitting diode has a distribution angle within a range of 25 degrees to 140 degrees. In particular, with such a light distribution angle, the air taken into the air cleaning section can be efficiently irradiated with ultraviolet light.

[0021] Furthermore, the virus infection prevention device of the present invention comprises: The first ultraviolet light emitting diode is the air filter is disposed on a base plate having a plurality of air passage holes via a substrate; The base plate is fixed to the inner surface of the cylindrical body.

[0022] Furthermore, the virus infection prevention device of the present invention includes: The second ultraviolet light emitting diode is the air filter is disposed on a base plate having a plurality of air passage holes via a substrate; The base plate is fixed to the inner surface of the cylindrical body.

[0023] In this way, if the first ultraviolet light emitting diode (second ultraviolet light emitting diode) is disposed via a substrate on a base plate having a plurality of air passage holes, the first ultraviolet light emitting diode (second ultraviolet light emitting diode) can be disposed approximately in the center of the cylindrical body when viewed from the front, so that ultraviolet light can be evenly irradiated onto the air taken in.

[0024] Furthermore, the virus infection prevention device of the present invention comprises: a heat sink is provided on a surface of the base plate opposite to a surface on which the first ultraviolet light emitting diode is provided, The heat sink is disposed at a position where the first ultraviolet light emitting diode and the heat sink overlap each other when viewed from above.

[0025] Furthermore, the virus infection prevention device of the present invention includes: a heat sink is provided on a surface of the base plate opposite to a surface on which the second ultraviolet light emitting diode is provided, The heat sink is disposed at a position where the second ultraviolet light emitting diode and the heat sink overlap each other when viewed from above.

[0026] With this configuration, the first ultraviolet light emitting diode (second ultraviolet light emitting diode) is cooled by the heat sink, so that the first ultraviolet light emitting diode (second ultraviolet light emitting diode) can be used for a long period of time and failure of the first ultraviolet light emitting diode (second ultraviolet light emitting diode) can be prevented.

[0027] Furthermore, the virus infection prevention device of the present invention comprises: The first ultraviolet light emitting diode and the second ultraviolet light emitting diode are It is characterized by its ability to inactivate more than 98% of viruses present in the air taken into the space formed by the reflecting mirror inside the cylindrical body within one second. The first and second ultraviolet light-emitting diodes having such performance can reliably inactivate viruses in the air.

[0028] Furthermore, the virus infection prevention device of the present invention comprises: The ultraviolet intensity of the ultraviolet light emitted from the first ultraviolet light emitting diode and the second ultraviolet light emitting diode is 2 mW / cm 2 ~500mW / cm 2 The range is characterized in that: Such ultraviolet light intensity can reliably inactivate viruses in the air or in exhaled breath.

[0029] Furthermore, the virus infection prevention device of the present invention comprises: The wavelength of the ultraviolet light emitted from the first ultraviolet light emitting diode and the second ultraviolet light emitting diode is within the range of 210 nm to 290 nm. In particular, ultraviolet light of this wavelength can inactivate viruses in the air or in exhaled breath with high efficiency and reliability.

[0030] Furthermore, the virus infection prevention device of the present invention comprises: The amount of air sent by the first air supply fan and the second air supply fan is 600 cc or more per second.

[0031] With this amount of air, virus-inactivated air is constantly supplied near the user's mouth, reliably preventing the user from breathing in surrounding virus-containing droplets, etc. Furthermore, when worn by a virus-infected person, the air exhaled from the mouth (exhaled breath) can be reliably released into the air in a virus-inactivated state.

[0032] Furthermore, the virus infection prevention device of the present invention comprises: One end of the air supply hose is detachably connected to a connection port provided in the mouth portion. If one end of the air supply hose and the connection port of the mouth portion are detachably connected in this way, the ease of maintenance such as detachment, replacement, repair, and cleaning of the air supply hose can be improved.

[0033] Furthermore, the virus infection prevention device of the present invention comprises: The other end of the air supply hose is detachably connected to a connection port on one end side of the cylindrical body of the air cleaning unit.

[0034] In this way, if the other end of the air supply hose and the connection port on one end side of the cylindrical body of the air cleaning unit are detachably connected, the ease of maintenance such as detachment, replacement, repair, and cleaning of the air supply hose can be improved.

[0035] Furthermore, the virus infection prevention device of the present invention comprises: The mouth portion is It is characterized by being made from a highly transparent resin with a total light transmittance of over 80% (measured on a 1mm thick sheet in accordance with JIS K7105).

[0036] If the mouth part is made of such a highly transparent resin, the user's mouth will not be difficult to see, and the virus infection prevention device of the present invention can be used effectively by, for example, hearing-impaired people who can read what a speaker is saying by the shape and movement of their mouth. It goes without saying that it is desirable that the surface of such a mouth portion be provided with an anti-fogging function.

[0037] Furthermore, the virus infection prevention device of the present invention comprises: The mouth is configured in a funnel shape. With such a funnel-shaped mouth portion, it is possible to reliably supply inert air to the mouth of the user.

[0038] Furthermore, the funnel-shaped opening is simply placed around the mouth without covering it, so it does not interfere with eating and allows a good view of the mouth, making the virus infection prevention device of the present invention suitable for use by, for example, hearing-impaired people who read what a speaker is saying by the shape and movement of their mouths.

[0039] Furthermore, the virus infection prevention device of the present invention comprises: The mouth portion is configured like an oxygen mask that covers the mouth and nose of the user.

[0040] With a mouth section configured like an oxygen mask, if the user is infected with a virus, the breath exhaled from the mouth and nose of the infected person can be reliably collected in the air purifying section and the virus can be inactivated before being released. Note that, in the case of a mouth section configured like an oxygen mask, it is preferable to provide a band that can be attached to the user's head.

[0041] Furthermore, the virus infection prevention device of the present invention comprises: a holding part for holding the air cleaning part; a strap for hanging the holding portion diagonally; The present invention is characterized by comprising:

[0042] In this way, by holding the air purifying unit with the holder and allowing it to be worn diagonally with a strap, the virus infection prevention device of the present invention can be used with both hands free, making it easy to carry and less likely to get in the way of work, making it particularly suitable for use by medical professionals and virus-infected people.

[0043] Furthermore, the virus infection prevention device of the present invention comprises: The strap has: The nozzle is characterized in that a fixture is provided to hold the mouth portion in a predetermined position near the mouth.

[0044] By holding the mouth part in a predetermined position with a fixture in this way, the user can hold the mouth part near the mouth without using eyeglass temples or head fixtures, thereby reducing stress caused by wearing the glasses for long periods of time.

[0045] Furthermore, the virus infection prevention device of the present invention comprises: Switching the power supply and rotation direction of the first and second air supply fans on and off; Turning on and off the power of the first ultraviolet light emitting diode and the second ultraviolet light emitting diode and adjusting the irradiation intensity of ultraviolet light; The present invention is characterized in that an operation control unit that performs at least the above is provided.

[0046] The provision of such an operation control unit allows the user to operate the air purifying unit at their chest without directly touching it, improving convenience during use. It also allows the virus infection prevention device to be quickly activated in an emergency. [Effects of the Invention]

[0047] According to the present invention, ultraviolet light-emitting diodes are provided on both one end and the other end of the cylindrical body, and furthermore, air can be both taken in and exhausted simply by switching the direction of rotation of the air supply fan, thereby making it possible to provide a virus infection prevention device that can effectively prevent virus infection, has a high processing capacity for inactivating viruses, is easy to operate, and is compact. [Brief explanation of the drawings]

[0048] [Figure 1] FIG. 1 is a schematic diagram of a virus infection prevention device of the present invention. [Figure 2] FIG. 2 is a schematic diagram showing the state in which the virus infection prevention device of the present invention is worn. [Figure 3] FIG. 3 is a schematic diagram of the air cleaning unit of the virus infection prevention device according to the embodiment of the present invention. [Figure 4] FIG. 4(a) is a cross-sectional view of the ultraviolet light emitting diode and peripheral members, and FIG. 4(b) is a top view of the ultraviolet light emitting diode and peripheral members. [Figure 5] FIG. 5(a) is an explanatory diagram for explaining the light distribution angle of ultraviolet light emitted by an ultraviolet light-emitting diode, and FIG. 5(b) is an explanatory diagram for explaining the light distribution angle of an ultraviolet light-emitting diode and a reflecting mirror. [Figure 6] FIG. 6 is an explanatory diagram for explaining the light distribution lens. [Figure 7] FIG. 7 is a schematic diagram showing a state in which a virus infection prevention device according to another embodiment of the present invention is attached. DETAILED DESCRIPTION OF THE INVENTION

[0049] The virus infection prevention device of the present invention will be described in more detail below with reference to the drawings. The present invention provides a virus infection prevention device that can effectively prevent virus infection, has a high processing capacity for inactivating viruses, is easy to operate, and is compact.

[0050] Furthermore, it can effectively prevent viral infection for many people, including medical workers, in place of masks such as nonwoven masks, and it can also release virus-laden air (exhaled breath) exhaled by a virus-infected person into the air in an inactivated state.

[0051] <Virus infection prevention device 80> As shown in Figures 1 and 2, a virus infection prevention device 80 in one embodiment of the present invention has a funnel-shaped mouth section 10 that is placed around the mouth of a user 30, an air purification section 50 that takes in air and irradiates the air that has been taken in with ultraviolet rays, and supplies the ultraviolet-irradiated air to the mouth section 10 or exhausts the ultraviolet-irradiated air into the air, and an air supply hose 40 that connects the mouth section 10 and the air purification section 50.

[0052] As shown in FIG. 3, this air cleaning unit 50 has a cylindrical body 52, one end A of which has a connection port 68 for connecting to the other end D of the air supply hose 40, and the other end B of which has an opening 56 for taking in air or discharging air.

[0053] Here, one end C of the air supply hose 40 is adapted to be detachably connected to a connection port 14 provided in the mouth portion 10, as shown in FIGS. Furthermore, the cylindrical body 52 is provided with a first air supply fan 54a further inward from the connection port 68 on one end A side of the cylindrical body 52, which takes in air into the cylindrical body 52 and expels air irradiated with ultraviolet rays from inside the cylindrical body 52.

[0054] Further inward from the first air supply fan 54a, a first ultraviolet light emitting diode 58a is provided, which irradiates ultraviolet light onto the air taken into the cylindrical body 52 or onto the air discharged from the cylindrical body 52.

[0055] On the other hand, further inward from the opening 56 on the other end B side of the cylindrical body 52, a second air supply fan 54b is provided which takes in air into the cylindrical body 52 and expels air irradiated with ultraviolet rays from inside the cylindrical body 52.

[0056] Further inward from the second air supply fan 54b, a second ultraviolet light emitting diode 58b is provided, which irradiates ultraviolet light onto the air taken into the cylindrical body 52 or onto the air discharged from the cylindrical body 52.

[0057] A reflector 66 is provided between the first ultraviolet light emitting diode 58a and the second ultraviolet light emitting diode 58b in the cylindrical body 52 to reflect the ultraviolet light emitted from the first ultraviolet light emitting diode 58a and the second ultraviolet light emitting diode 58b.

[0058] The reflecting mirror 66 comprises a cylindrical main body 69, an umbrella-shaped first inclined portion 70a provided at one end of the cylindrical main body 69 and having a light distribution angle θ that approximately matches the light distribution angle θ of the ultraviolet light emitted from the first ultraviolet light-emitting diode 58a, and an umbrella-shaped second inclined portion 70b provided at the other end of the cylindrical main body 69 and having a light distribution angle θ that approximately matches the light distribution angle θ of the ultraviolet light emitted from the second ultraviolet light-emitting diode 58b, and the area formed by the reflecting mirror 66 is configured as a virus inactivation chamber F.

[0059] Such a reflecting mirror 66 can be produced, for example, by processing a known cylindrical reflecting mirror. The reflecting mirror 66 can be constructed by depositing an ultraviolet reflective film on the surface of a plate-like body (not shown). The material of the ultraviolet reflective film is not particularly limited, but the reflecting mirror 66 can be formed, for example, by depositing an aluminum film on the surface of a plate-like body (not shown).

[0060] Here, the size of the virus inactivation chamber F, which is the area formed by the reflector 66 inside the cylindrical body 52, is not particularly limited, but it is preferable that the diameter is within the range of 50 mm to 200 mm, the total length is within the range of 100 mm to 300 mm, and the space is approximately 500 cc to 2500 cc.

[0061] In the virus infection prevention device 80 of this embodiment, the power ON / OFF and rotation direction of at least the first air supply fan 54a and the second air supply fan 54b, and the power ON / OFF and adjustment of the ultraviolet radiation intensity of the first ultraviolet light emitting diode 58a and the second ultraviolet light emitting diode 58b can be controlled by operating the operation control unit 22, and it is preferable to use a battery (not shown) as the power source.

[0062] Furthermore, in order to make it easier to operate the operation control unit 22, the operation control unit 22 may be configured to control these operations collectively using a wireless controller (not shown).

[0063] In addition, in the virus infection prevention device 80 of this embodiment, the second ultraviolet light-emitting diode 58b is arranged via a substrate 59 on a base plate 63 having multiple (12 in Figure 4(b)) air passage holes 62, as shown in Figures 3, 4(a) and 4(b), and the substrate 59 is fixed to the base plate 63 by soldering.

[0064] The base plate 63 is fixed to the inner surface of the cylindrical body 52 by adhesive or other means. A heat sink 60 is provided on the surface of the base plate 63 opposite to the side on which the second ultraviolet light emitting diode 58b is disposed, and the heat sink 60 is disposed so that the position of the second ultraviolet light emitting diode 58b overlaps the position of the heat sink 60 when viewed from above (FIG. 4(b)). As the heat sink 60, it is preferable to use, for example, a known commercially available product. Such a heat sink 60 is fixed to the base plate 63 with an adhesive.

[0065] On the other hand, the first ultraviolet light-emitting diode 58a located on one end A side of the air cleaning section 50, like the second ultraviolet light-emitting diode 58b, is arranged via a substrate 59 on a base plate 63 having multiple (12) air passage holes 62, and the substrate 59 is fixed to the base plate 63 by soldering, and this base plate 63 is fixed to the inner surface of the cylindrical body 52 by means of adhesive or the like.

[0066] A heat sink 60 is provided on the surface of the base plate 63 opposite to the side on which the first ultraviolet light emitting diode 58a is disposed, and the heat sink 60 is disposed so that the position of the first ultraviolet light emitting diode 58a overlaps the position of the heat sink 60 when viewed from above (not shown). It is preferable to use, for example, a known commercially available product as the heat sink 60. Such a heat sink 60 is fixed to the base plate 63 with an adhesive.

[0067] That is, the first ultraviolet light-emitting diode 58a, the second ultraviolet light-emitting diode 58b, the first air supply fan 54a, and the second air supply fan 54b are arranged in line symmetry with respect to the reflecting mirror 66 in the direction from one end A to the other end B (the up-and-down direction in FIG. 3).

[0068] Here, the performance of the first ultraviolet light-emitting diode 58a and the second ultraviolet light-emitting diode 58b is preferably such that they are capable of inactivating, within one second or less, 98% or more of the viruses in droplets present in 1000 cc of air taken into the virus inactivation chamber F, which is the area defined by the reflector 66 inside the cylindrical body 52 described below.

[0069] Specifically, the intensity of the ultraviolet light emitted from each of the first ultraviolet light emitting diode 58a and the second ultraviolet light emitting diode 58b is preferably 2 mW / cm. 2 ~500mW / cm 2 in the range of 20 mW / cm 2 ~200mW / cm 2 is within the range.

[0070] Moreover, the wavelength of the ultraviolet light emitted from each of the first ultraviolet light LED 58a and the second ultraviolet light LED 58b is preferably within the range of 210 nm to 290 nm.

[0071] Here, as shown in Figures 5(a) and 5(b), the first ultraviolet light emitting diode 58a and the second ultraviolet light emitting diode 58b are preferably configured so that the irradiation range of the ultraviolet light emitted from the second ultraviolet light emitting diode 58b has a predetermined angle (wide angle) (ultraviolet light distribution area E). This angle, i.e., the light distribution angle θ, is preferably within the range of 25 to 140 degrees.

[0072] In addition, if the ultraviolet light emitted from the second ultraviolet light-emitting diode 58b does not have a predetermined light distribution angle θ, the desired light distribution angle θ can be obtained by disposing light distribution lenses 64 having the desired light distribution angle θ on the first ultraviolet light-emitting diode 58a and the second ultraviolet light-emitting diode 58b, respectively, as shown in Figure 6.

[0073] The ultraviolet light emitted from the second ultraviolet light-emitting diode 58b is reflected by the first inclined portion 70b provided at the other end of the reflecting mirror 66 within the virus inactivation chamber F, which is the area defined by the reflecting mirror 66 within the cylindrical body 52, so that the ultraviolet light is irradiated efficiently and without leakage onto the air taken into the virus inactivation chamber F, which is the area defined by the reflecting mirror 66 within the cylindrical body 52.

[0074] At the same time, the ultraviolet light emitted from the first ultraviolet light-emitting diode 58a is reflected by the first inclined portion 70a provided at one end of the reflecting mirror 66 within the virus deactivation chamber F, which is the area defined by the reflecting mirror 66 within the cylindrical body 52, so that the ultraviolet light is irradiated efficiently and without leakage onto the air taken into the virus deactivation chamber F, which is the area defined by the reflecting mirror 66 within the cylindrical body 52.

[0075] That is, the air taken into the virus deactivation chamber F, which is the area obtained by the reflecting mirror 66, is irradiated with ultraviolet rays from both directions, and the viruses in the air are deactivated. In the virus infection prevention device 80 of this embodiment, it is preferable that the amount of air sent from each of the first air supply fan 54a and the second air supply fan 54b be 600 cc or more per second.

[0076] If the amount of air sent from each of the first air supply fan 54a and the second air supply fan 54b is 600 cc or more per second, a sufficient amount of virus-inactivated air for breathing will always be supplied near the mouth of the user 30, thereby reliably preventing the user from inhaling surrounding virus-containing droplets.

[0077] Furthermore, if the amount of air sent from each of the first air supply fan 54a and the second air supply fan 54b is 600 cc per second or more, even if the user 30 is infected with a virus, all viruses in the infected person's exhaled breath can be exhausted in an inactivated state every time the infected person breathes, thereby reliably preventing virus-containing droplets from being exhausted around the user 30.

[0078] That is, the virus infection prevention device 80 of the present invention has the capability to be applied to both the role of preventing virus infection in the user and the role of preventing the spread of infection from a virus-infected person.

[0079] Here, when supplying virus-inactivated air near the mouth of the user 30, a funnel-shaped mouth 10 is used as shown in Figure 2, and one end C of the air supply hose 40 is connected to the connection port 14 of this mouth 10.Furthermore, the other end D of the air supply hose 40 is connected to the connection port 68 on the one end A side of the air cleaning unit 50, and the mouth 10 is arranged so as to be located near the mouth of the user 30.

[0080] In this state, the operation control unit 22 is operated to operate the first air supply fan 54a and the second air supply fan 54b so as to rotate in the same direction, thereby drawing air into the cylindrical body 52 from the opening 56 on the other end B side of the cylindrical body 52. ​​This drawn-in air first passes through the air passage hole 62 on the other end B side and is drawn into the virus inactivation chamber F, which is the area defined by the reflector 66, where it is subjected to ultraviolet light emitted from the second ultraviolet light-emitting diode 58b and ultraviolet light emitted from the first ultraviolet light-emitting diode 58a on the one end A side of the cylindrical body 52, thereby inactivating the viruses in the air.

[0081] The air in which the viruses have been inactivated passes from the virus inactivation chamber F, which is the area created by the reflector 66, through the air passage hole 62 on one end A side of the cylindrical body 52, via the connection port 68 to the air supply hose 40, and is then supplied to the mouth of the user 30 via the air supply hose 40.

[0082] In this way, virus-inactivated air can be supplied around the mouth of the user 30, allowing them to live their lives safely, and since the mouth of the user 30 is not covered by the mouth part 10, it can be used suitably by, for example, hearing-impaired people who read what a speaker is saying by the shape and movement of their mouth. Furthermore, since the mouth of the user 30 is not covered by the mouth part 10, they can eat and drink safely while using the virus infection prevention device 80.

[0083] On the other hand, when a person infected with a virus uses the virus infection prevention device 80 of this embodiment, the operation control unit 22 is operated to rotate the first air supply fan 54a and the second air supply fan 54b in the direction opposite to that when supplying virus-inactivated air near the mouth of the user 30.

[0084] As a result, the exhaust (exhaled breath) of a virus-infected person is taken into the cylindrical body 52 from the connection port 68 on one end A side of the cylindrical body 52 via the air supply hose 40, and first passes through the air passage hole 62 on one end A side.The air that has passed through the air passage hole 62 is exposed to ultraviolet rays emitted from the first ultraviolet light-emitting diode 58a and the second ultraviolet light-emitting diode 58b in the virus inactivation chamber F, which is the area defined by the reflector 66, and the viruses in the air are inactivated.The air in which the viruses have been inactivated then passes through the air passage hole 62 on the other end B side and is discharged from the opening 56.

[0085] In addition, as shown in Figures 1 and 2, it is preferable that the virus infection prevention device 80 of this embodiment holds the air purifying unit 50 with a holding unit 94, and that this holding unit 94 can be worn diagonally across the shoulders and waist of the user 30 with a strap 96.

[0086] Here, the holding part 94 is preferably configured so that the air cleaning unit 50 is firmly held by the holding part 94. For example, the holding part 94 may be made of a band so that it firmly holds the outer periphery of the air cleaning unit 50, or the air cleaning unit 50 may be configured to fit into the holding part 94. Furthermore, the holding part 94 and the strap 96 are preferably configured to be detachable.

[0087] Furthermore, the strap 96 is preferably provided with a fixture 18 for fixing one end C of the air supply hose 40. By fixing one end C of the air supply hose 40 with this fixture 18, the mouth part 10 can be always positioned in the correct position near the mouth of the user 30.

[0088] It is also preferable that the strap 96 be designed so that the operation control unit 22 can be connected to the fastener 18 as well. This allows the air purifying unit 50 to be operated near the chest without direct contact, improving convenience during use. Furthermore, the virus infection prevention device 80 can be quickly activated in an emergency.

[0089] The strap 96 for draping the device diagonally across the user 30, the holder 94, and the fixture 18 may be omitted. If they are omitted, this is suitable for when the user 30 uses the virus infection prevention device 80 while lying in bed, for example. Furthermore, when the user 30 does not wear the strap 96, the mouth unit 10 may be positioned near the mouth of the user 30, and the air purifying unit 50 may be left leaning against the edge of the bed.

[0090] With a virus infection prevention device 80 equipped with a strap 96, a holding part 94, and a fixing device 18 in this way, the user 30 does not have to use both hands, making this virus infection prevention device 80 particularly suitable for use by medical professionals and people infected with viruses.

[0091] In this embodiment, a strap 96 is used that can be worn diagonally across the shoulders and waist of the user 30, but this is not particularly limited, and any desired type can be used depending on the usage situation, such as a type that can be carried on the back like a backpack, a type that can be worn over the shoulder, or a type that can be worn around the neck.

[0092] The manner in which the mouth part 10 is attached to the user 30 is not limited to the funnel-shaped configuration shown in FIG. 2, but may be configured, for example, like an oxygen mask that covers the mouth and nose of the user 30, as shown in FIG. 7.

[0093] Furthermore, it is preferable that the mouth portion 10 is transparent so that it is as easy to see as possible. Specifically, it is preferable that the mouth portion 10 is made of a highly transparent resin with a total light transmittance of 80% or more (measured on a 1 mm thick sheet in accordance with JIS K7105). It is also preferable that the surface of the mouth portion 10 is subjected to an anti-fogging treatment.

[0094] Since the mouth part 10 is made of such a highly transparent resin, the mouth of the user 30 can always be seen, and therefore it can be used suitably by, for example, hearing impaired people who can read what the speaker is saying by the shape and movement of their mouth.

[0095] As described above, the virus infection prevention device 80 of the present invention can use ultraviolet light emitted from the first ultraviolet light-emitting diode 58a and the second ultraviolet light-emitting diode 58b to turn the air taken into the virus inactivation chamber F, which is the area defined by the reflector 66 of the cylindrical body 52, into virus-inactivated air, and can reliably supply this virus-inactivated air to the mouth of the user 30 via the mouth part 10.

[0096] Furthermore, if the user 30 is infected with a virus, all of the breath of the virus-infected person is taken into the virus inactivation chamber F of the air cleaning section 50, and ultraviolet light is irradiated onto this virus-containing breath via the first ultraviolet light-emitting diode 58a and the second ultraviolet light-emitting diode 58b, so that the virus can be inactivated and then released into the air.

[0097] In other words, the structure allows ultraviolet light to be irradiated from both the one end A side and the other end B side onto the air taken into the virus inactivation chamber F, which is the area obtained by the reflector 66, thereby improving the processing capacity for inactivating viruses compared to conventional methods.

[0098] Furthermore, the virus infection prevention device 80 of the present invention can both take in and exhaust air simply by switching the rotation direction of the first air supply fan 54a and the second air supply fan 54b, so there is no need to change the connection position between the air cleaning unit 50 and the air supply hose 40 according to the purpose of use, as was the case with conventional devices. This means there is no need to attach or detach the air cleaning unit 50 and the air supply hose 40, making it highly operable and simple in structure, which can contribute to miniaturization.

[0099] Furthermore, the virus infection prevention device 80 of the present invention is not limited to the above-described embodiment, and the user 30 may use the virus infection prevention device 80 while wearing, for example, protective glasses (not shown).

[0100] Furthermore, various modifications are possible within the scope of the purpose of the present invention, such as the use of the technical content of the virus infection prevention device described in Patent No. 7296670, which has already been patented by the present applicant. [Explanation of symbols]

[0101] 10 Mouth 14 Connection port 18 Fixtures 22 Operation control section 30 User 40 Air supply hose 50 Air Cleaning Unit 52 Cylindrical body 54a First air supply fan 54b Second air supply fan 56 Opening 58a First ultraviolet light-emitting diode 58b Second ultraviolet light-emitting diode 59 Circuit Board 60 Heatsink 62 Air passage hole 63 Base Plate 64 Light distribution lens 66 Reflector 68 Connection port 69 Cylindrical main body 70a 1st slope 70b 2nd slope 80 Virus infection prevention device 94 Holding part 96 Strap A One end B Other end C One end D Other end E UV light distribution range F. Virus inactivation chamber θ Light distribution angle

Claims

1. A mouth portion disposed near the mouth of a user; an air cleaning unit that takes in air, irradiates the air that has been taken in with ultraviolet light, and supplies the air that has been irradiated with ultraviolet light to the opening, or discharges the air that has been irradiated with ultraviolet light into the air; an air supply hose that connects the opening and the air cleaning unit; A virus infection prevention device comprising at least The air cleaning unit a cylindrical body portion having a connection port for connecting to the air supply hose at one end and an opening for taking in or discharging the air at the other end; a first air supply fan that is provided further inward than the connection port on one end side of the cylindrical body portion and that takes in the air into the cylindrical body portion and exhausts air from the cylindrical body portion; a second air supply fan that is provided further inward than the opening on the other end side of the cylindrical body portion and that takes in the air into the cylindrical body portion and exhausts the air from the cylindrical body portion; a first ultraviolet light emitting diode that is provided further inward than the first air supply fan of the cylindrical body portion and that irradiates ultraviolet light onto the air taken into the cylindrical body portion or onto the air discharged from the cylindrical body portion; a second ultraviolet light emitting diode that is provided further inward than the second air supply fan of the cylindrical body portion and that irradiates ultraviolet light onto the air taken into the cylindrical body portion or onto the air discharged from the cylindrical body portion; a reflecting mirror provided between the first ultraviolet light emitting diode and the second ultraviolet light emitting diode in the cylindrical body portion, the reflecting mirror reflecting the ultraviolet light emitted from the first ultraviolet light emitting diode and the second ultraviolet light emitting diode; Equipped with The reflecting mirror is A cylindrical main body portion; a first inclined portion provided at one end of the cylindrical main body portion and having a light distribution angle substantially matching that of the ultraviolet light emitted from the first ultraviolet light LED; a second inclined portion provided at the other end of the cylindrical main body and having a light distribution angle substantially equal to that of the ultraviolet light emitted from the second ultraviolet light-emitting diode; A virus infection prevention device comprising:

2. The reflecting mirror is A plate-like body; 2. The virus infection prevention device according to claim 1, further comprising an ultraviolet reflective film formed on the surface of the plate-like body.

3. In the first ultraviolet light emitting diode and the second ultraviolet light emitting diode, a light distribution lens is provided on the exit surface from which the ultraviolet rays are emitted, 2. The virus infection prevention device according to claim 1, wherein the light distribution angle of the ultraviolet light is adjusted by the light distribution lens.

4. 2. The virus infection prevention device according to claim 1, wherein the ultraviolet light emitted from the first ultraviolet light emitting diode and the second ultraviolet light emitting diode has a light distribution angle in the range of 25 degrees to 140 degrees.

5. The first ultraviolet light emitting diode is the air filter is disposed on a base plate having a plurality of air passage holes via a substrate; 2. The virus infection prevention device according to claim 1, wherein the base plate is fixed to the inner surface of the cylindrical body.

6. a heat sink is provided on a surface of the base plate opposite to a surface on which the first ultraviolet light emitting diode is provided, The virus infection prevention device according to claim 5, characterized in that the position of the heat sink is set so that the position of the first ultraviolet light emitting diode overlaps the position of the heat sink when viewed from above.

7. The second ultraviolet light emitting diode is the air filter is disposed on a base plate having a plurality of air passage holes via a substrate; 2. The virus infection prevention device according to claim 1, wherein the base plate is fixed to the inner surface of the cylindrical body.

8. a heat sink is provided on a surface of the base plate opposite to a surface on which the second ultraviolet light emitting diode is provided, The virus infection prevention device described in claim 7, characterized in that the position of the heat sink is set so that the position of the second ultraviolet light emitting diode overlaps the position of the heat sink when viewed from above.

9. The first ultraviolet light emitting diode and the second ultraviolet light emitting diode are The virus infection prevention device according to claim 1, characterized in that it has the ability to inactivate more than 98% of viruses present in the air taken into the space formed by the reflecting mirror inside the cylindrical body within one second.

10. The ultraviolet intensity of the ultraviolet light emitted from the first ultraviolet light emitting diode and the second ultraviolet light emitting diode is 2 mW / cm 2 ~500mW / cm 2 2. The virus infection prevention device according to claim 1, wherein the range is .gtoreq..times ...

11. 2. The virus infection prevention device according to claim 1, wherein the wavelength of the ultraviolet light emitted from the first ultraviolet light emitting diode and the second ultraviolet light emitting diode is in the range of 210 nm to 290 nm.

12. 2. The virus infection prevention device according to claim 1, wherein the amount of air sent by the first air supply fan and the second air supply fan is 600 cc or more per second.

13. 2. The virus infection prevention device according to claim 1, wherein one end of the air supply hose is detachably connected to a connection port provided in the mouth portion.

14. 2. The virus infection prevention device according to claim 1, wherein the other end of the air supply hose is detachably connected to a connection port on one end side of the cylindrical body of the air cleaning unit.

15. The mouth portion is 2. The virus infection prevention device according to claim 1, characterized in that it is made of a highly transparent resin having a total light transmittance of 80% or more (measured in accordance with JIS K7105 using a 1 mm thick sheet).

16. 2. The virus infection prevention device according to claim 1, wherein the opening is configured in a funnel shape.

17. 2. The virus infection prevention device according to claim 1, wherein the mouth portion is configured like an oxygen mask that covers the mouth and nose of the user.

18. a holding part for holding the air cleaning part; a strap for hanging the holding portion diagonally; 2. The virus infection prevention device according to claim 1, further comprising:

19. The strap has: The virus infection prevention device according to claim 18, characterized in that a fixture is provided to hold the mouth portion in a predetermined position near the mouth.

20. Switching the power supply of the first air supply fan and the second air supply fan on and off and changing the rotation direction of the first air supply fan and the second air supply fan; Turning on and off the power of the first ultraviolet light emitting diode and the second ultraviolet light emitting diode and adjusting the irradiation intensity of ultraviolet light; 2. The virus infection prevention device according to claim 1, further comprising an operation control unit that performs at least the above.

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