JP2022122709A - Ultraviolet radiation device - Google Patents

Abstract

To provide an ultraviolet radiation device which is for general purpose and is safe.SOLUTION: An ultraviolet radiation device 1 comprises: a human sensing sensor for sensing whether there is a person in a prescribed range around a press button 100 as a sterilization target object; a contact sensor for detecting whether a person has touched the press button 100; an LED for radiating ultraviolet to the press button 100 to sterilize the press button 100; and a control circuit for controlling them. Triggered by a contact with the press button 100 by a person, ultraviolet is radiated to the press button 100 by the LED for a prescribed time after lapse of a prescribed time in a state in which there is no person in the prescribed range.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to an ultraviolet irradiation device that irradiates an object to be sterilized with ultraviolet rays to sterilize the object.

For example, as disclosed in Patent Document 1, there is known a configuration for sterilizing a strap using ultraviolet rays emitted from an LED toward a gripper.

Japanese Patent Application Laid-Open No. 2020-63049

Furthermore, in recent years, sterilization and disinfection of articles have been encouraged, and there is a demand for a device that is both more versatile and safe.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an ultraviolet irradiation device that is both versatile and safe.

The present invention is an ultraviolet irradiation device for sterilizing an object to be sterilized by irradiating ultraviolet rays to the object to be sterilized. Human detection means for detecting whether or not to sterilize, ultraviolet irradiation means for irradiating the object to be sterilized with ultraviolet rays, and control means for controlling the ultraviolet irradiation means based on information obtained from the human detection means. , wherein the control means controls the ultraviolet irradiation means to irradiate the object to be sterilized with ultraviolet light for a predetermined time after a predetermined time has passed without a person existing within the predetermined range. This is an ultraviolet irradiation device characterized by:

Such a configuration irradiates the object to be sterilized with ultraviolet rays when no person exists within the predetermined range, so that it is possible to avoid adversely affecting the human body in the process of sterilizing the object to be sterilized. In addition, the irradiation of ultraviolet rays is started after a predetermined period of time has elapsed since the state in which no person exists within the predetermined range is sufficiently ensured, so that the safety is greatly improved. In addition, by installing the main body in a desired position, it can be installed later even in a place without sterilization equipment, so it is excellent in versatility.

Here, contact detection means for detecting whether or not a person within the predetermined range has touched the object to be sterilized is provided, and the control means controls the ultraviolet irradiation based on information obtained from the contact detection means. Triggered by the contact of a person with the object to be sterilized, after a predetermined period of time has elapsed in which no person exists within the predetermined range, the ultraviolet irradiation means is controlled to remove the object to be sterilized. A configuration is proposed that includes a control content for irradiating an object with ultraviolet light for a predetermined time.

With such a configuration, the object to be sterilized is sterilized only when a person touches the object to be sterilized with a finger or the like. It becomes possible.

Further, when the human detection means detects the presence of a person while the ultraviolet irradiation means is irradiating the object to be sterilized with ultraviolet rays, the control means controls the ultraviolet irradiation means to irradiate the ultraviolet rays. is proposed.

By adopting such a configuration, it is possible to suppress the possibility of irradiating a person who enters the predetermined range with ultraviolet rays, so that the apparatus can be made more excellent in safety.

The ultraviolet irradiation device of the present invention has versatility and high safety.

FIG. 2 is an explanatory diagram showing an installation state of the ultraviolet irradiation device according to the first embodiment; 1 is a perspective view of an ultraviolet irradiation device according to Example 1. FIG. 1 is a block circuit diagram of an ultraviolet irradiation device according to Example 1. FIG. 4 is a flow chart showing the control contents of the control circuit of the ultraviolet irradiation device according to the first embodiment; 4 is a timing chart showing an operation mode of the ultraviolet irradiation device according to Example 1. FIG. FIG. 10 is an explanatory diagram showing an installation state of the ultraviolet irradiation device according to the second embodiment;

Hereinafter, specific examples of the ultraviolet irradiation device of the present invention will be described in detail. It should be noted that the present invention is not limited to the embodiments shown below, and design changes can be made as appropriate.

[Example 1]
As shown in FIG. 1, the ultraviolet irradiation device 1 can use, for example, an elevator push button 100 as an object to be sterilized.

The ultraviolet irradiation device 1 includes a box-shaped main body 10, as shown in FIG. Further, a mounting means (not shown) is provided on the rear surface 11 of the main body 10, and the mounting means can be retrofitted, for example, to the wall of an elevator hall.

A human sensor 20 as a human sensor is provided on the front face of the main body 10 . This human detection sensor 20 can detect whether or not a person exists within a predetermined range around the push button 100, which is an object to be sterilized.

Further, a contact sensor 30, which is a distance measuring sensor as contact detection means, is provided on the bottom surface of the main body 10. As shown in FIG. The contact sensor 30 can detect whether or not a person has touched the push button 100, which is an object to be sterilized.

Furthermore, an LED 40 as an ultraviolet irradiation means is provided on the bottom surface of the main body 10 . The LED 40 makes it possible to irradiate the push button 100, which is an object to be sterilized, with ultraviolet rays.

In addition, in the bottom view of the main body 10, an auxiliary LED 50 that emits visible light (for example, blue) is separately provided adjacent to the LED 40. As shown in FIG. The auxiliary LED 50 irradiates the irradiation range of the LED 40 with visible light (for example, blue) while the LED 40 for irradiating ultraviolet rays is irradiating ultraviolet rays, which is invisible. And it functions as irradiation notification means for notifying the irradiation range.

Further, a control circuit 60 and a battery (not shown) are provided inside the main body 10 . Power can be supplied to the battery through a terminal 70 provided on the side surface of the main body 10 .

As shown in FIG. 3 , the control circuit 60 can receive signals emitted by the human sensor 20 and the contact sensor 30 . It also has a function of controlling the lighting and extinguishing of the LED 40 and the auxiliary LED 50 based on the received signal.

More specifically, when the contact sensor 30 detects that a person touches the push button 100, the control circuit 60 detects that the human sensor 20 does not exist within a predetermined range for a predetermined time. It has a control content of lighting the LED 40 and irradiating the push button 100 with ultraviolet light for a predetermined time.

Further, the control circuit 60 has a control content for stopping irradiation of ultraviolet rays when the human sensor 20 detects the presence of a person while the LED 40 is irradiating the push button 100 with ultraviolet rays.

Furthermore, the control circuit 60 turns on the auxiliary LED 50 (first notification state) while the LED 40 is emitting ultraviolet rays, and turns off the auxiliary LED 50 while the LED 40 is not emitting ultraviolet rays. It has control contents to be in a state (second notification state).

Next, the contents of control processing based on the control circuit 60 will be described in detail according to the flowchart shown in FIG.

In S10, it is determined whether or not the human sensor 20 has detected a person. If detected (S10: YES), the process proceeds to S90, and if not detected (S10: NO), the process proceeds to S20.

In S20, which proceeds from the NO determination in S10, the operation of the contact sensor 30 is stopped, and the process proceeds to S30.

In S30 after shifting from S20, it is determined whether or not the contact timer X is zero. If the contact timer X is 0 (S30: YES), the process proceeds to S40, and if not 0 (S30: NO), the process proceeds to S50.

In S40, which proceeds from the YES determination in S30, the LED 40 is turned off and the auxiliary LED 50 is turned off, which is the second notification state. Then the process ends.

In S50 following the NO determination in S30, it is determined whether or not the motion timer Y is zero. If the motion timer Y is 0 (S50: YES), the process proceeds to S60, and if not 0 (S50: NO), the process proceeds to S80.

In S60 after the YES determination in S50, the LED 40 is turned on and the auxiliary LED 50 is turned on, which is the first notification state. Then, the process proceeds to S70.

In S70 which is shifted from S60, the contact timer X is decremented according to the elapsed time. Then the process ends.

In S80 after the NO determination in S50, the motion timer Y is decremented according to the elapsed time. Then the process ends.

In S90, which proceeds from the YES determination in S10, the LED 40 is turned off and the auxiliary LED 50 is put in the second notification state. Then, the process proceeds to S100.

In S100 which transfers from S90, the contact sensor 30 is operated and it transfers to S110.

In S110, which is the transition from S100, the motion timer Y is set to, for example, 10 seconds. Then, the process proceeds to S120.

In S120 following S110, it is determined whether the contact sensor 30 has detected contact with the push button 100 or not. If they are in contact (S120: YES), the process proceeds to S130, and if they are not in contact (S120: NO), the process ends.

In S130, which proceeds from the YES determination in S120, the contact timer X is set to, for example, 15 seconds, and the process ends.

Next, the lighting timing and lighting time of the LED 40 will be described according to the timing chart of FIG.

When the human sensor 20 detects a person and the contact sensor 30 detects contact with the push button 100, the LED 40 turns on after Y time (10 seconds) after the human sensor 20 stops detecting the person. Start UV irradiation. Also, the ultraviolet irradiation continues for X hours (15 seconds), and then the light is turned off.

As a safety measure, in S90 shown in FIG. 4, when the human sensor 20 detects a person while the LED 40 is emitting ultraviolet rays, the LED 40 is turned off.

The ultraviolet irradiation device 1 described so far can be attached to a wall surface and used alone. be able to.

[Example 2]
As shown in FIG. 6, the ultraviolet irradiation device 2 has a stand shape in which the main body 10 is provided with a leg portion 15. For example, a pen 110 as an object to be sterilized is accommodated in the leg portion 15 so that the pen 110 can be sterilized by UV irradiation. Thus, the ultraviolet irradiation device 2 can be suitably applied to, for example, writing instruments used by many and unspecified persons.

The ultraviolet irradiation devices 1 and 2 described so far can also be applied to the following objects as objects to be sterilized.

[For store facilities]
Common water faucets such as toilets, wash basins, surroundings of items in hand washing areas (hand soap and paper outlets, etc.), automatic door push buttons, touch sensors, ATMs, ticket vending machines, vending machines, ticket vending machines Touch panels, shoe horns installed at entrances, signature pens for credit card payments, wall-mounted remote controls for toilets, self-checkouts at supermarkets, corners where chopsticks and spoons are placed in hotels and restaurants

[For office]
Storage space for shared items (car keys, etc.), shared telephones, shared computers (mouse), static electricity removal sheets, etc., frequently used cabinet handles, cash register drawers, counters for exchanging slips with delivery companies

[For housing, buildings, and management companies]
The numeric keypad at the entrance, the intercom of the apartment

[For welfare and medical institutions]
Nursing care facility tables and chairs, stored walkers and canes, nameplates and writing utensils used when entering hospitals and facilities, thermometers placed at the entrance of facilities, etc. Bed remote controls and nurse calls at hospital facilities

[For schools and public facilities]
Sports equipment used at schools, nursery school and elementary school facilities, indoors such as taxis and buses

[For home use]
Remote controllers, smartphones, tablets, etc.

[For commercial facilities]
Escalator handrail etc.

〔others〕
Refueling nozzles and static electricity removal materials of self-service gas stations, grip parts of rental bicycles, game buttons of game arcades, handles of pachinko slots, books or products of general stores and bookstores, clothing as products, coin lockers, toilets Inside, the living room space in the sales office, the toilet seat and toilet bowl, the steering wheel of the car, etc.

Also, in the above embodiments, the dimensions and shape of each part can be freely selected as appropriate.

In addition, depending on the distance between the object to be sterilized and the ultraviolet irradiation device 1, the range detected by the human sensor 20, the distance detected by the contact sensor 30, or the emission intensity and lighting time of the LED 40 can be changed as appropriate. It is possible.

As the attachment means, for example, an adhesive tape, an adhesive, or fixing means such as bolts and nuts may be employed.

Further, the irradiation notification means is not limited to the light emitting means, and sound means for emitting a warning sound may be employed.

Also, when the human sensor detects a person, only the blue LED light may be emitted so that the doorknob can be easily seen at night. Also, the recording function of the security camera may be turned on when the motion sensor detects a person. Also, a pest repellent function may be added.

1, 2 Ultraviolet irradiation device 10 Main body 11 Rear surface 15 Legs 20 Human sensor (human detection means)
30 contact sensor (contact detection means)
40 LED (ultraviolet irradiation means)
50 auxiliary LED (irradiation notification means)
60 control circuit 70 terminal 100 push button (object to be sterilized)
110 pen (object to be sterilized)

Claims (3)

An ultraviolet irradiation device that irradiates an object to be sterilized with ultraviolet rays to sterilize the object,
a main body installed at a predetermined position;
Human detection means for detecting whether or not a person exists within a predetermined range around the object to be sterilized;
UV irradiation means for irradiating the object to be sterilized with UV light;
a control means for controlling the ultraviolet irradiation means based on information obtained from the human detection means;
with
The control means is
An ultraviolet irradiation device characterized by comprising a control content of controlling the ultraviolet irradiation means to irradiate the object to be sterilized with ultraviolet rays for a predetermined time after a predetermined time has passed without a person existing within the predetermined range. Contact detection means for detecting whether or not a person within the predetermined range has touched the object to be sterilized,
The control means controls the ultraviolet irradiation means based on the information obtained from the contact detection means, and is triggered by a person's contact with the sterilization object, and detects that a person exists within the predetermined range. 2. The ultraviolet irradiating device according to claim 1, further comprising control contents for controlling said ultraviolet ray irradiation means to irradiate said object to be sterilized with ultraviolet rays for a predetermined period of time after a predetermined period of time has passed. The control means is
When the human detection means detects the presence of a person while the ultraviolet irradiation means is irradiating the object to be sterilized with ultraviolet rays, the ultraviolet irradiation means is controlled to stop the irradiation of the ultraviolet rays. The ultraviolet irradiation device according to claim 1 or 2.

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