JP7464275B2 - Sterilizer set - Google Patents

Description

The present invention relates to a sterilizer set .

The recent spread of viruses has led to the need to take measures to prevent infection in theaters, television stations, homes, offices, buildings, public facilities, hospitals, nursing homes, and more.

As a countermeasure, there are already existing products that absorb, purify, and release air, but they are used in situations where people are having quiet conversations, such as hospital waiting rooms.

As a measure against viruses, for example, technology has been proposed that uses ultraviolet light to kill bacteria and viruses indoors to prevent their harmful effects.

For example, Patent Document 1 discloses an indoor sterilization device that is attached to a wall inside a room and is equipped with a light source that irradiates ultraviolet light into the interior of a housing, a member that limits the ultraviolet light from the light source, and a fan, etc., and that moves the air from the lower part of the room upward and sterilizes it by irradiating the air with ultraviolet light from the upper part.

JP 2019-150668 A

However, for example, on stage, the amount of vomit emitted by performers (wind players, singers, actors, and panelists, etc.) can be as much as 30,000 cc (0.03 ^m3 ) per minute, depending on the level of enthusiasm of the performance. Conventional products are not effective when there are performers who emit excessive amounts of vomit.

In other words, because the device in Patent Document 1 is designed to sterilize the entire room, even though it uses ultraviolet light, its effectiveness in combating bacteria, viruses, etc. that may be floating around near performers who emit large amounts of localized vomit on stage is limited and low.

The present invention has been made in consideration of the above problems, and an object of the present invention is to provide a sterilization device set that can effectively sterilize a localized space where, for example, a singer, a wind player, or a speaker is present.

In order to solve the above problems, the sterilization device set of the present invention comprises a sterilization device having a housing, an suction section provided on the upper part of the housing, a gas transfer section which draws gas into the housing from the suction section, an ultraviolet irradiation section which irradiates the sucked gas with ultraviolet light to sterilize it, and a discharge section which discharges the gas irradiated with ultraviolet light from the lower part of the housing, and several stands of different heights which hold the housing vertically, the housing is formed in a cylindrical shape, the ultraviolet irradiation section is provided between the suction section and the discharge section, the gas transfer section is provided between the suction section and the ultraviolet irradiation section, and the stand is configured to support the lower end of the housing by fitting it into its upper part.

According to the present invention, effective sterilization can be performed in a localized space where a performer such as a singer, wind instrument player, or speaker is present, and the suction part 12 can be positioned at a height near the height of the performer's mouth, making it possible to accommodate both standing and seated performers A.

The drawings show specific embodiments of the invention according to the present disclosure, including essential features of the invention as well as alternative and preferred embodiments.
1 is an external view showing a sterilization device set according to one embodiment of the present invention. FIG. FIG. 2 is a perspective view of a sterilization device in the sterilization device set . FIG. 11 is a diagram showing another example of use of the sterilization device set . FIG. 2 is a schematic diagram showing a sterilization system using the sterilization device set . FIG. 2 is a detailed configuration diagram of an ultraviolet lamp device used in the sterilization system.

Hereinafter , an embodiment of the present invention will be described with reference to the drawings.

The sterilization apparatus set according to the present invention includes a sterilization apparatus 10 as shown in Fig. 1, and this sterilization apparatus 10 is an individual installation type for a performer (wind instrument player, singer, actor, and panelist, etc.) A on a stage (a stage on which a wind instrument player, singer, actor, and panelist, etc. are present), and is preferably placed within 1m of the main fixed position of performer A on the stage. In this case, it is preferable to place the sterilization apparatus 10 for the number of people, if possible.

It is also preferable that the sterilizer has a suction force of 0.3 m ³ or more per minute, and a sterilizing dose of 70 joules (nominal output rating) or more and 40 joules (sterilizing radiation output rating) or more per m ² .

Furthermore, the sterilization device 10 is configured to be, for example, cylindrical with a height H of approximately 1.2 m to 1.6 m (approximately the height of the mouth of performer A), an inner diameter of approximately 15 cm (13 cm to 18 cm: preferably 15 cm), and a weight of approximately 4 kg.

That is , the sterilization device 10 has a movable cylindrical housing 14 having a height of about 90 cm to 130 cm and an inner diameter of about 15 cm.

The housing 14 is preferably made of a material such as plastic, acrylic, hard paper, or aluminum to reduce weight.

The housing 14 also has an opening/closing cover 16 that covers the operating section (not shown).

In addition, the sterilization apparatus set according to the present invention has a stand 15 having a height of about 30 cm. This stand 15 is formed in a trumpet shape with an aluminum frame expanding downwards, and the lower end of the housing 14 is fitted into and supported at the upper part, thereby holding the housing 14 in a vertical position and preventing it from falling over.

The stand 15 also sets the height of the suction part 12, which will be described later, and is formed at a height such that the suction part 12 is at approximately the same height as the mouth of performer A.

In other words, by preparing several stands 15 of different heights, it is possible to accommodate both standing and seated performers A.

Further, on the upper side of the housing 14 of the above-mentioned sterilization device 10 , there is provided a suction section 12 having a plurality of air intake ports 12a for taking in air including exhaled air into the inside.

It is preferable that the suction unit 12 is capable of sucking in 20 times the amount of air exhaled (for example, 0.6 [m ³ ]). The material of the suction unit 12 is preferably plastic, acrylic, or the like, in order to reduce weight.

Furthermore, the underside of the housing 14 is provided with an exhaust side holding section 20 having multiple air exhaust ports (exhaust sections) 20a.

Furthermore, as shown in FIG. 2, a germicidal lamp (ultraviolet ray irradiation unit) 40 is provided within the housing 14, and the discharge holding unit 20 is adapted to hold this germicidal lamp 40.

The discharge side holding portion 20 is cylindrical and made of a material such as plastic, acrylic, paper, fiber, or aluminum.

A lower shade 21 for preventing ultraviolet condensation is provided above the air exhaust port 20a of the exhaust side holding part 20, and a lower socket 22 is provided directly below this lower shade 21.

This lower socket 22 is fixed to the discharge side holding part 20 by a hook (not shown).

On the other hand, a suction side holding portion 30 is provided on the upper side of the housing 14.

The suction side holding part 30 is cylindrical, and has a gas transfer part 33 fitted on the upper part, which is composed of a suction fan part 31 and a fan motor 32. A control part 34 is connected to the fan motor 32. The suction amount of the suction fan part 31 is set to about 0.6 [m ³ ] to 1.2 [m ³ ] per minute, for example.

An upper shade 35 is provided on the underside of the suction side holding portion 30 to prevent ultraviolet light exposure.

Furthermore, an upper socket 36 is provided between the upper shade 35 and the control unit 34. This upper socket 36, like the lower one, is fixed to the peripheral wall of the suction side holding unit 30 by a hook (not shown).

The upper socket 36 and the lower socket 22 are structured to fit a linear germicidal lamp 40 having a length of, for example, 30 cm to 90 cm and a diameter of 2 cm to 5 cm. The germicidal lamp 40 has a power of, for example, about 20 W to 40 W, and preferably 20 W.

In addition, a thin layer of aluminum 42 is attached to the inner wall of the cylindrical housing 14 that faces the germicidal lamp 40. This allows the ultraviolet rays to be reflected, effectively destroying viruses and bacteria.

In addition, a power cord (not shown) for the germicidal lamp 40 is connected to the upper socket 36 and the lower socket 22. If the power source is AC or the UV lamp is DC, a power cord from a battery is connected. It is preferable to install the battery inside.

In this configuration, the control unit 34 activates each unit using the power on/off switch SW on the operation unit (not shown), and drives the fan unit 31 using the suction on/off switch SW, absorbing the exhaled air of performer A into the interior through the multiple exhaled air intakes 12a of the suction hole unit 12, causing it to flow into the germicidal lamp 40 side and along the germicidal lamp 40 (in the direction of the arrow AR), where it is sterilized by the ultraviolet light irradiated from the germicidal lamp 40.

The sterilized air is discharged from multiple air discharge ports (discharge sections) 20a in the discharge side holding section 20 of the housing 14 (see Figure 1).

In other words, a maximum of 30,000 cc (0.03 ^m3 ) of exhaled air per minute exhaled by performer A is sucked into the cylindrical main body 14 together with 20 times that amount of air, 0.6 ^m3 , and is sterilized and discharged.

However, depending on the type of performance and the proximity of the performer to the equipment, the suction volume may be 0.5 to 2 times the amount mentioned above.

In experiments conducted by a leading manufacturer, it was confirmed that when 1.6 ^m3 of air (including coronavirus) was passed per minute through a 200 mm diameter cylinder equipped with a 30 W germicidal lamp, 99.9% of the viruses were killed.

Based on the air volume and the cylindrical diameter of the housing 14 in this embodiment, the air passing speed is calculated to be 90 m per second, and with a 30 W germicidal lamp length of 66 cm, the result is that "coronavirus is killed when exposed to ultraviolet light for 1 second or more in a space of 10 cm or less." As an empirical rule combining the germicidal lamp output, irradiation area, residence time, etc., it is concluded that "the required germicidal dose is 70 joules/ ^m3 ."

The device of the present invention uses a 20 W fluorescent lamp, a cylindrical housing 14 with a diameter of 130 cm, and an air volume of 0.6 ^m3 per minute, but is small and lightweight, so it does not look out of place even when installed close to performer A. Furthermore, the air passing speed inside the cylindrical housing 14 is 76 cm per second, and even if the germicidal lamp output is reduced from 30 W to 20 W, a reduction of 0.67 times, the distance from the germicidal lamp is reduced by 0.65 times, resulting in the same illuminance and maintaining the same germicidal performance. The germicidal dose in this case is calculated to be 80 joules/ ^m2 .

However, this does not deny the possibility of doubling the sterilization performance by increasing the diameter of the cylindrical housing 14 to 15 cm, doubling the suction volume to 1.2 ^m3 , or increasing the sterilization lamp output to 40 W, all of which are possible without impairing the aesthetic appearance of the stage.

According to the above configuration, the sterilization device 10 forcibly sucks in the gaseous exhaled air of the performer A, irradiates the sucked-in air with ultraviolet light to kill bacteria and the like, and then exhausts the air, thereby preventing each individual performer A from becoming a source of infection. In other words, effective sterilization can be performed in a localized space.
Moreover, the suction portion 12 can be adjusted to a height that is close to the height of the performer's mouth, and can accommodate both a standing performer A and a seated performer A.

In addition, because the exhaled breath of the performer is sterilized with ultraviolet light in close proximity to the performer, bacteria and viruses floating in the air around the performer can be killed. This is particularly effective in preventing bacteria and viruses floating in the air around a performer who emits a large amount of exhaled breath on stage, etc. Furthermore, it makes it possible to carry out artistic and cultural activities without endangering the health of other performers or the audience.

Next, another example of how the sterilization device 10 can be used will be described with reference to Figure 3.

Figure 3 shows an example in which the sterilization device 10 (e.g., sterilization devices 102 to 104) is installed in a room in a home, which is a localized space where people are talking, for example.

First, the sterilization device 102 is installed next to the table 121. In this case, the sterilization device 103 is designed so that the air intake 12a of the suction unit 12 is positioned near the height of the mouth of the seated performer A (slightly above the top plate 108 of the table 121). In this case, by using a low-height stand 15, the air intake 12a of the suction unit 12 is set to be at a low position.

Next, the sterilization device 103 has a duct 109 attached to the suction section 12.

The duct 109 is bendable, for example with a bellows, so that the opening 110 can be turned sideways or upward. In the usage mode shown in the figure, the opening 110 is bent so that it is located near the upper surface of the top plate 108.

Next, the sterilization device 104 is equipped with a support stand 111. This support stand 111 has a rotation shaft 112 that rotatably supports the housing 14, and is capable of holding the housing 14 in a tilted state. Therefore, the direction and height of the suction unit 12 can be changed depending on the tilt position.

As another example of use, as shown in Figures 4 and 5, even if the sterilization device 10 is installed near a performer A on a stage, not all of the breath exhaled by the performer A is sucked in, but 20 to 30 percent of the breath escapes.

For example, because the escaped breath is hotter than the surrounding air, it floats slowly within a space 2 to 4 meters above the head and 4 meters to the left and right (remaining there for more than a minute).

Therefore, the germicidal lamp is surrounded on all four sides and the bottom by opaque panels, and the case is open at the top, and is held facing upwards at a height of 2 m (symbol H2) above the stage (FE). For example, two germicidal lamps are placed in the left and right width directions, and two more are placed in the left and right width directions with a gap in the axial direction, for a total of four lamps in one set. Furthermore, they are placed at an angle that makes them appear as points when viewed from the spectator seats. Here, an aluminum reflector that forms an angle of 30° ANG is provided to properly reflect the ultraviolet rays.

On the other hand, during a break or for a few minutes after the performance has ended, performers and audience members can be asked to leave the venue and the devices can be switched from facing upward to facing downward, which can kill bacteria that may be attached to the floor, music stands, etc.

It is said that a virus placed 10 cm away from a germicidal lamp will die within one second. A light source that is aligned along its axis is called a linear light source, and the illuminance is inversely proportional to the distance to the side of the tube, so the illuminance at a distance of 4 m is kept to 1/40th of the illuminance at a distance of 10 cm.

Therefore, if the virus in that location is exposed to UV light for 40 seconds, it can be killed. To put it another way, if this device is placed every few meters (maximum 8 meters: symbol W2), it can kill and remove viruses in the overhead space above the stage.

A special shade may be added to the upward-facing fluorescent lamp. A system for sterilizing the air that has escaped from the sterilization device 10 of the above embodiment will now be described.

Fig. 4 is a schematic diagram of the stage sterilization system. Fig. 5 is a detailed diagram of the germicidal lamp device (ultraviolet ray irradiation device) 70 used in the stage sterilization system . In Figs. 4 and 5, the same reference numerals as in Figs. 1 and 2 will not be described.

The stage sterilization system shown in FIG. 4 is provided with the above-mentioned stand-type sterilization device 10 for each performer A (for example, 10A, 10B, 10C, 10D).

In addition, a germicidal lamp device 70 is provided in which a germicidal lamp unit 60 is connected to the horizontal pole portion 50a of an L-shaped pole 50 with a height of 2 m or more (e.g., 2 m to 3 m: preferably 220 cm) when viewed from the side. If the stage width is 8 m or less, one device is used, and if it is more than 8 m but less than 16 m, two devices are used.

The L-shaped pole 50 is made up of a horizontal pole section 50a and a vertical pole 50b. The ultraviolet light section 60 is made up of a front germicidal light section 62a at the front of the stage, a rear germicidal light section 62b at the rear of the stage, and a front and rear germicidal light connector section 63 that connects the front and rear ultraviolet light sections of the same size.

The front germicidal lamp unit 62a and the rear germicidal lamp unit 62b make up one set. This front and rear germicidal lamp connection unit 63 is an empty case that is installed to prevent ultraviolet rays from reaching the rear performer A (e.g., A1, A3) and the front performer A (e.g., A2, A4). The size can be changed depending on the distance between the rear performer A (e.g., A1, A3) and the front performer A (e.g., A2, A4).

The front germicidal lamp section 62a and the rear germicidal lamp section 62b (collectively referred to as the germicidal lamp section 62) of the germicidal lamp section 60 house two germicidal lamps 64a and 64b.

Power lines (not shown) for the germicidal lamps 64a and 64b run through the inside of the L-shaped pole 50. Furthermore, the vertical pole 50b is provided with an adjustment section 80 for adjusting the height. The vertical pole 50b is also provided with a switch (not shown) for turning the power on.

A fixing device 52 is provided at the bottom of the vertical pole 50b. The fixing device 52 may be a screw or may be something like a weight.

As shown in Figure 5, the UV lamps (64a, 64b) are housed in opaque cases to prevent performers and viewers from seeing UV rays, which are harmful to the eyes.

In FIG. 5, a thin aluminum plate 67 is placed on the surface. This thin aluminum plate 67 is for reflecting ultraviolet light sufficiently in the horizontal direction as well, and may be provided on either the front germicidal lamp unit 62a or the rear germicidal lamp unit 62b, or both (although this is not essential).

Figure 5 shows an example in which a thin reflecting plate 67 is provided under the right germicidal lamp 64a and the left germicidal lamp 64b, allowing ultraviolet light to be sufficiently reflected horizontally as well.

The thin reflective plate 67 below the right germicidal lamp 64a and the left germicidal lamp 64b is inclined at 30 degrees near the center as shown by the symbol ANG, so that sufficient ultraviolet light is reflected horizontally as well. It is preferable to attach a thin aluminum plate with excellent reflective properties to the surface of the reflector.

Therefore, for example, even if the germicidal lamp is 20 W, the exhaled air is directed into a narrow space of 6.5 cm, and a reflector made of thin aluminum that is excellent at reflecting ultraviolet rays is installed, so high germicidal power is achieved even in the horizontal direction.

This will improve the situation where singers, brass players, speakers, and other "performers" who exhale a considerable amount of air spread germ-containing exhaled air around them. In other words, it will provide a sterilization device that prevents people from becoming infection perpetrators, rather than just preventing infection damage.

The present invention is not limited to use on stage or at home, but can also be used in places such as schools, stores, and hospitals, and can effectively sterilize localized spaces.

Although the embodiments have been described in detail above, they are not limited to specific embodiments, and various modifications and changes are possible within the scope of the claims. It is also possible to combine all or some of the components of the embodiments described above.

For example, a sound detector (e.g., a microphone) that detects the volume of sound (such as a voice) may be provided in or near the sterilizer, and the gas transfer section may be controlled according to the volume of the sound to increase or decrease the amount of suction in the suction section, or the amount of ultraviolet light in the ultraviolet light irradiation section may be controlled according to the volume of the sound.

Furthermore, a direction detector that detects the direction of sound may be provided in the sterilizer or in its vicinity, and the suction unit may be configured to automatically face the direction of the sound. Alternatively, the suction unit may be fixed and provided with a duct that automatically changes direction, so that the suction unit is automatically directed in the direction of the detected sound.

Furthermore, when multiple sterilization devices are installed, a sound source detector that detects the source of sound may be provided, and the operation of the sterilization devices may be controlled according to the position of the sound source (for example, by operating a nearby sterilization device or controlling it with AI).

10 Sterilization device 12 Suction unit 14 Housing 15 Stand
20a Exhaust section (air exhaust port)
33 Gas transfer section 40 Ultraviolet irradiation section (germicidal lamp )

Claims (1)

A housing and
A suction unit provided on an upper portion of the housing;
a gas transfer section that draws gas from the suction section into the housing;
An ultraviolet irradiating unit that irradiates the sucked gas with ultraviolet light to sterilize it;
an exhaust section that exhausts the gas irradiated with ultraviolet light from a lower portion of the housing;
A sterilization device having
Several stands of different heights that hold the housing vertically;
Equipped with
The housing is formed in a cylindrical shape,
The ultraviolet ray irradiation unit is provided between the suction unit and the discharge unit,
The gas transfer unit is provided between the suction unit and the ultraviolet ray irradiation unit,
The stand is configured to support the lower end of the housing by fitting it into an upper portion of the stand.
A sterilization apparatus set comprising:

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