JPS62227357A - Ultraviolet instantaneous sterilization apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) This invention relates to an ultraviolet sterilizing device, and more particularly to a sterilizing device using a compact ultraviolet sterilizing lamp that instantaneously generates powerful ultraviolet rays.

(Prior art) Unlike sterilization using high temperatures or chemicals, ultraviolet sterilization equipment can sterilize objects in a non-contact manner without physically or chemically affecting the objects to be sterilized. All you need to do is prepare a light source.

It is widely used for various purposes as a simple and effective sterilization method.

As a conventional ultraviolet light source, a mercury fluorescent discharge tube type is widely used. However, this discharge tube has a low radiation intensity per unit volume, and it is difficult to make the tube shape small.It takes a long time to sterilize, and it is difficult to sterilize narrow areas such as inside holes.

(Problems to be solved by this invention) This invention provides a sterilizer that uses an extremely small ultraviolet light emitting lamp to enable effective sterilization in a short period of time regardless of the shape of the object to be sterilized. That's what you're trying to get.

Structure of the Invention (Means for Solving Problems) This invention uses a small xenon-filled discharge tube as an ultraviolet light source, and discharges the charge accumulated in a capacitor at high voltage through the discharge tube at high current density. 1. It is characterized by instantaneous generation of strong ultraviolet rays, and this ultraviolet rays has a strong bactericidal effect.

(Function) Xenon-filled discharge tubes are widely used as built-in flash lamps in compact cameras, and are popular as extremely compact and convenient light sources. When used for such purposes, the radiation intensity in the visible wavelength range becomes a problem. As is well known, the emission spectrum from a xenon-filled discharge tube includes a characteristic spectrum and a continuous spectrum as shown in FIG. 1, and the balance between them provides excellent color rendering properties. The above figure shows a discharge current density of 100OA/
d, but the case where the current density is increased to 310OA/d is shown in figure a. Compared to the same figure, the characteristic spectrum intensity in the long wavelength range does not increase that much, but a strong characteristic spectrum is seen in the ultraviolet range, and the continuous spectrum also becomes stronger in the short wavelength range, making it effective as a whole. This shows that it can be used as an ultraviolet light source.

Furthermore, it is known that in order to increase the current density without increasing the discharge voltage that much, and also increase the total discharge current and increase the UV intensity, it is better to shorten the arc length and increase the arc diameter. There is. For this reason.

The arc length is about 201, and the pipe length is about 31. It has been confirmed that a tube with an inner diameter of about 3 jets and a high peak discharge current can be put to practical use as an ultraviolet light source.

(Examples) The ultraviolet sterilizer of the present invention can sterilize many objects that could not be irradiated with conventional germicidal lamps, and some examples will be shown below.

Figure 2 shows a sterilizer for slippers used in hospitals, inns, etc. The main body 1 has a shape suitable for hanging slippers,
The discharge tubes 2 are appropriately arranged, and a switch 3 is provided at the tip of the discharge tube 2, which is turned on by hanging a slipper.

A large number of these sterilizers are arranged in a shoe removal area, and when a removed slipper is hung on the main body 1, the switch 3 is turned on, the discharge tube 2 is energized, and the inner surface of the slipper part of the slipper is irradiated and sterilized. . Therefore, by the time the first person tries to use the slippers, the slippers have already been sterilized and are extremely hygienic without requiring any special operations.

It goes without saying that a similar sterilizing device can also be used as a sterilizing device for the inside of shoes.

FIG. 3 is an example of an apparatus suitable for sterilizing the inside of a narrow hole. The discharge tube has a UV-transparent cylindrical cover 4;
It is connected by a flexible shaft 5 to a power supply device 6 which also serves as a handle. The power supply device uses a battery as a power source and is composed of a boost discharge device similar to a flash power source for a camera.

The tip of this sterilizing device, the ultraviolet radiation part, is small and can be inserted into small holes and irradiated with irradiation, so it is possible to sterilize areas that were previously unimaginable, such as the inside of the finger hole of a Pauling ball.

In the embodiment shown in FIG. 4, a discharge tube is fixed directly to the tip of a power supply device 7 that also serves as a handle, and a cover 8 of a visible light cut filter is provided. It can be used for sterilizing and treating athlete's foot on the fingers.

Effects of the Invention This invention configures an ultraviolet sterilizer using an extremely small xenon discharge tube with high radiation intensity as a light source, as described above, and therefore cannot be considered with a conventional mercury fluorescent discharge tube type light source. Irradiation sterilization is possible by inserting it into narrow spaces such as Furthermore, since the radiation intensity of ultraviolet rays from a unit volume of a xenon discharge tube is high, objects to be sterilized near the discharge tube will be locally exposed to extremely strong ultraviolet rays, sterilizing only the necessary areas in an extremely short time. I can do it. For this reason, it has been extremely difficult to sterilize the inside of footwear that is used one after another by unspecified people, down to the toes, in a short period of time, such as rental shoes for skiing, skating, and polling, and slippers for hospitals. We were able to obtain a sterilizer suitable for difficult uses.

In addition, since it is extremely easy to use with a battery as a power source, it can be used not only for home use, such as for shoes, but also for treating athlete's foot, etc., and is a sterilizing device that opens up new uses that have never been seen before. This is what became.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the radiation spectrum of the xenon discharge lamp used in this invention, Fig. 2 is a front view of a slipper sterilizer which is one embodiment of this invention, and Figs. 3 and 4 are illustrations of other embodiments. It is a conceptual diagram showing the configuration of an example, in which 1 is the main body of the slipper sterilizer, 2 is a xenon discharge tube, 3 is a switch, 4 is a cylindrical cover, 5 is a flexible shaft, 6.
7 is a handle/power supply device, and 8 is a visible light cut filter. Patent applicant Fujimic Co., Ltd. Patent attorney Fumio Sato (2 others) Wavelength (nm) (a) Wave & (nm) (b) Figure 2

Claims (1)

[Scope of Claims] 1) A discharge tube used as an ultraviolet light source, which instantaneously generates strong ultraviolet light by supplying charge energy stored in a capacitor at a high current density to a xenon-filled discharge tube. 2) An instant ultraviolet sterilizer characterized by using: 2) A discharge tube is disposed in a main body that can be inserted into shoes, slippers, etc., and a switch is provided at the tip of the device (claim 1). 3) The instant ultraviolet sterilizer according to claim 1, characterized in that a discharge tube is connected to a power supply device that also serves as a handle through a flexible shaft. The instant ultraviolet sterilizer according to claim 1, characterized in that a tube is fixedly installed.