JP3236755U - Spatial sterilizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a space sterilization apparatus which can be manufactured at low cost with a simple structure. SOLUTION: An irradiation unit 2 that irradiates an ultraviolet ray, a housing 3 that houses the irradiation unit and has an opening 31 that overlooks the irradiation unit, and a hole 41 that covers the opening and communicates inside and outside the housing. It is a sterilization device 1 including a cover 4 having a cover 4 and a translucent body 5 fitted in a hole portion. It is a cylinder to be erected, has an opening at the upper end of the housing, and further includes an electric fan 7 for sending outside air to the irradiation unit. [Selection diagram] Fig. 2

Description

The present invention relates to a space sterilization device.

Sterilization or sterilization using ultraviolet rays has been studied for a long time, and many reports have been made on its effectiveness, and it is still attracting attention from the viewpoint of preventing the spread of infectious diseases.

The mechanism of sterilization by ultraviolet rays is as follows.
That is, deoxyribonucleic acid (DNA) that controls genetic information exists in the nucleus in the cells of bacteria, and the light absorption spectrum of DNA has an absorption band near the wavelength of 260 nm. The wavelength characteristics of the bactericidal effect of ultraviolet rays on fungi are very similar. From this, it is generally considered that by irradiating bacteria with ultraviolet rays, they act on the DNA in the bacteria to cause photochemical reactions such as hydration phenomenon, dimer formation, and decomposition, and kill the fungi. It is said that the bactericidal effect of ultraviolet rays having a wavelength of around 260 nm is the highest.

Spatial sterilization devices that utilize the bactericidal effect of ultraviolet rays are sold and used by the general public.
Such a space sterilizer has, for example, a substantially cylindrical shape, and an ultraviolet irradiation unit is provided inside the device. Then, using a fan or the like, air is taken into the inside of the device from below the space sterilizer, and the taken-in air is passed through the ultraviolet irradiation part and then circulated so as to be exhausted from the upper part of the device to the outside space again. By doing so, the space where the device is installed is sterilized. For example, refer to Patent Document 1 (Japanese Unexamined Patent Publication No. 2006-26239).

Japanese Unexamined Patent Publication No. 2006-262339

Such spatial sterilizers are already well known and many products are on the market. Therefore, a simpler structure and a design that can be manufactured at a lower cost will lead to the acquisition of competitiveness.

For example, it is generally required to be able to visually recognize whether a device is connected to a power source and is in an operating state or a stopped state, and is usually provided with something like a power light, and the device is turned on and off by turning the power light on and off. The operating status is visible, but an operation panel and circuits are required for that purpose.

In order to omit such a structure, for example, it is conceivable to judge operation or stop by directly visually observing the ultraviolet light emitted in the device, but the effect on the eyes by directly looking at the ultraviolet light. Considering this, such a method is not desirable.

Therefore, it is an object of the present invention to provide a space sterilization apparatus that can be manufactured at low cost with a simple structure.

In order to solve the above-mentioned problems, the present invention
Irradiation part that irradiates ultraviolet rays and
A housing that accommodates the irradiation unit and has an opening overlooking the irradiation unit.
A cover that covers the opening and has a hole that communicates the inside and outside of the housing.
The translucent body fitted in the hole and
Provided is a space sterilization apparatus, characterized in that it is provided with.

In the space sterilization apparatus of the present invention, it is preferable that the translucent body is a glass body having a fine concavo-convex structure on the surface.

Further, in the space sterilization device of the present invention, it is preferable that the housing is a tubular body erected on the installation surface and the opening is provided at the upper end of the housing.

Further, in the space sterilization device of the present invention, it is preferable to further include an electric fan that sends outside air to the irradiation unit.

According to the present invention, it is possible to provide a space sterilization apparatus that can be manufactured at low cost with a simple structure.

It is an external view of the space sterilization apparatus 1 which concerns on this embodiment. It is a partial cross-sectional side view and AA line sectional view of the space sterilization apparatus 1. FIG. It is a perspective view of the head of a space sterilization apparatus 1.

Hereinafter, a typical embodiment of the space sterilization apparatus according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to these drawings. In addition, since the drawings are for conceptually explaining the present invention, the dimensions, ratios, or numbers may be exaggerated or simplified as necessary for easy understanding.

The space sterilization device 1 according to the present embodiment is suitably used for sterilization of spaces such as medical facilities, restaurants, offices, conference rooms, and changing rooms. Here, the target of sterilization includes not only bacteria but also viruses, molds, protists and the like.

As shown in FIG. 1, the space sterilizer 1 has a substantially cylindrical shape as a whole, but is not limited to a cylindrical shape. As shown in FIG. 2, the space sterilization device 1 includes an irradiation unit 2, a housing 3, a cover 4, and a translucent body 5.
Hereinafter, each component will be described in detail.

The irradiation unit 2 is an ultraviolet lamp that irradiates ultraviolet rays. The type of ultraviolet rays used in the present embodiment is preferably UV-C (100 nm to 280 nm), particularly far UV-C (200 nm to 230 nm) from the viewpoint of effectively sterilizing the above-mentioned sterilized target. ..

The irradiance of ultraviolet rays by the irradiation unit 2 is preferably 0.05 to 0.08 [W / cm ² ]. Further, the irradiation time of ultraviolet rays is preferably 0.3 to 0.7 [sec]. Sufficient bactericidal effect can be expected within the above irradiance and irradiation time range.

The irradiation unit 2 may be any as long as it can irradiate a desired type of ultraviolet light, and examples thereof include LEDs and barrier discharge excimer lamps.

In the present embodiment, the irradiation unit 2 has a substantially cylindrical shape or a substantially cylindrical shape, and is arranged along the longitudinal direction or the axial direction of the housing 3. From the viewpoint of irradiating the air passing through the housing 3 with a sufficient amount of ultraviolet rays, the irradiation unit 2 may have a length of approximately 50 [cm] under the above-mentioned irradiance. However, the dimensions and arrangement of the irradiation unit 2 may be appropriately set according to the required sterilization ability and the shape of the housing 3.

The housing 3 accommodates the irradiation unit 2 and shields the ultraviolet rays from the irradiation unit 2 from leaking to the outside. As the material of the housing 3, for example, a metal such as aluminum can be preferably used, but other materials such as resin may be used as long as it has the required strength and ultraviolet resistance.

The housing 3 is a hollow cylinder and is erected on the installation surface. The housing 3 has openings 31 and 32 at the upper and lower ends that overlook the irradiation unit 2. Therefore, the housing 3 also functions as an air flow path. The volume of the ultraviolet irradiation space (flow path around the irradiation unit 2) in the housing 3 is 5000 to 10000 [cm ³ ] from the viewpoint of obtaining a sufficient sterilization effect under the above-mentioned irradiance and irradiation time. It is preferable to have.

The cover 4 is a member that covers the opening 31 of the housing 3 and shields ultraviolet rays from the irradiation unit 2 from leaking to the outside from the top surface side of the space sterilizing device 1. However, there is a gap S1 between the cover 4 and the housing 3, which functions as a vent (exhaust port).

Although the cover 4 has a disk shape in the present embodiment, it may have another shape such as a rectangle as long as it has sufficient shielding performance against ultraviolet rays from the irradiation unit 2. Further, the cover 4 can be made of, for example, a metal material or a resin material, but the material of the cover 4 is not limited to these.

The cover 4 has a hole 41 that communicates the inside and outside of the housing 3. The hole 41 may be provided in the center of the cover 41, for example. The hole 41 may be widened from the upper surface side to the lower surface side of the cover 4 so that the translucent body 5 can be reliably held.

A translucent body 5 is fitted in the hole 41. The translucent body 5 is for confirming whether or not the ultraviolet rays are irradiated from the irradiation unit 2 while preventing the user's eyes from being directly exposed to the ultraviolet rays from the irradiation unit 2.

The translucent body 5 is preferably a glass body (frosted glass, frosted glass) having a fine concavo-convex structure on the surface from the viewpoint of scattering ultraviolet rays from the irradiation unit 2, but may be made of a resin material. In this embodiment, the translucent body 5 is a sphere. For example, marbles can be used as the translucent body 5. The translucent body 5 may be fixed to the hole 41 by, for example, a metal piece attached to the lower surface side of the cover 4. The method for forming the fine concavo-convex structure is not particularly limited, and examples thereof include sandblasting, wet blasting, frosting, and combinations thereof.

A base 6 is arranged at the lower end of the housing 3. The base 6 supports the housing 3. There is a gap S2 between the base 6 and the housing 3, which functions as a ventilation port (intake port).

In the present embodiment, the base 6 has a disk shape, but other shapes may be used. Further, the base 6 can be made of, for example, a metal material or a resin material, but the material of the base 6 is not limited to these.

The space sterilization device 1 may further include an electric fan 7 that sends outside air to the irradiation unit 2. In the present embodiment, the electric fan 7 is arranged on the lower end side of the housing 3, and sucks outside air from the gap S2 and sends it to the irradiation unit 2. The ventilation capacity of the electric fan 7 is preferably 0.85 to 1.0 [m ³ / min] from the viewpoint of efficient sterilization.

Further, the space sterilization device 1 may include a power source (not shown) that supplies electric power to electric parts such as the irradiation unit 2 and the electric fan 7. The power source may be an AC power source or a DC power source, and may have a timer function.

Next, the operation of the space sterilization device 1 will be described.
When the power of the space sterilizing device 1 is turned on, the electric fan 7 is activated, and the outside air is sucked from the gap S2 at the lower end of the housing 3 and sent toward the irradiation unit 2. The air sent around the irradiation unit 2 is sterilized by the ultraviolet rays from the irradiation unit 2 while passing around the irradiation unit 2, and is discharged from the gap S1 at the upper end of the housing 3. In this way, sterilization of the space is carried out.

At this time, the translucent body 5 glows faintly due to the ultraviolet rays leaking from the irradiation unit 2 (see FIG. 3). Therefore, the user can easily grasp that the space sterilization device 1 is in operation by the faint light.

That is, is the space sterilizer 1 operating using the light of the irradiation unit 2 while preventing the ultraviolet light from leaking directly to the outside of the space sterilizer 1 so that the user does not directly see the ultraviolet light? As a structure that can be visually recognized, the space sterilizer 1 is provided with a hole 41 in which the irradiation unit 2 can be seen, and the translucent body 5 is fitted in the hole 41. With this structure, the ultraviolet light is diffusely reflected or attenuated by the translucent body 5, so that there is no possibility that the user directly looks at the ultraviolet light in the space sterilizing device 1.

In addition, it is possible to check the operating state of the space sterilizing device 1 without having to bother to provide a power lamp. Since the translucent body 5 (marbles, etc.) is inexpensive and easily available, it is more advantageous in terms of price and material procurement than providing a circuit or the like for providing a power light.

Further, when the space sterilizing device 1 has a substantially cylindrical shape, a viewing window (hole 41) provided with the translucent body 5 is provided on the disk-shaped cover 4 covering the upper end of the housing 3. As a result, visibility can be improved.

The space sterilization device, which is an embodiment of the present invention, has been described above, but the present invention is not limited to these, and various design changes are possible as long as the technical idea of the present invention is provided. Yes, all such design changes are within the technical scope of the present invention.

1 Spatial sterilizer 2 Irradiation unit 3 Housing 4 Cover 5 Translucent body 6 Base 41 Hole

Claims (4)

Irradiation part that irradiates ultraviolet rays and
A housing that accommodates the irradiation unit and has an opening overlooking the irradiation unit.
A cover that covers the opening and has a hole that communicates the inside and outside of the housing.
The translucent body fitted in the hole and
A space sterilizer characterized by being equipped with. The translucent body is a glass body having a fine uneven structure on the surface.
The space sterilization apparatus according to claim 1. The housing is a cylinder that is erected on the installation surface.
The opening is provided at the upper end of the housing,
The space sterilization apparatus according to claim 1 or 2. Further equipped with an electric fan for sending outside air to the irradiation unit,
The space sterilization apparatus according to any one of claims 1 to 3.

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