JPH0518574A - Ventilation fan - Google Patents

Abstract

PURPOSE:To decompose organic material, to alleviate and prevent fixture of contaminants by providing an ultraviolet ray lamp for radiating two types of special ultraviolet rays and its lighting circuit in a ventilation fan body. CONSTITUTION:A ventilation fan body is composed of blades 1 to be driven by a motor 5, an outer frame 2 and a shutter 3 for preventing invasion of wind and rain, and an ultraviolet ray lamp 7 radiates ultraviolet rays and generates ozone to decompose organic materials adhered to the blades 1 and the frame 2. The lamp 7 is connected to a lighting circuit 9 and a power source 11, and started by a blow lamp 10 by closing a switch 12. The switch 12 is opened or closed in cooperation with the rotation of the blades 1 by a switch 4. The lamp 7 radiates the ultraviolet rays having 185nm and 254nm, the former of which forms ozone from oxygen molecules in the air, the latter of which separates the material into single atoms of oxygen in the atmosphere in which the ozone exists. The single atoms of the oxygen generates carbon dioxide, carbon monoxide, water from the organic material to be volatilized and decomposed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation fan having a function of reducing or preventing the adherence of dirt by decomposing organic matter which is a main component of dirt adhering to the ventilation fan.

[0002]

2. Description of the Related Art Generally, a ventilation fan is an oil floating in the air,
Smoke or dust in the room adheres to generate dirt. Therefore, the ventilation fan has a structure that can be easily attached and detached and easily cleaned (JIS C9603-1988). In particular, most of the blades can be removed with just fingers without using a special tool. Acrylic resin, polypropylene resin, etc. are used for the material of the blades and the outer frame to make it easier to wash off dirt. .

[0003]

However, when the ventilation fan is used without cleaning for a long period of time, oil attached to the ventilation fan,
Not only is dust and the like adhering and the appearance is impaired and the appearance is impaired, but dirt adhering to the blades causes a decrease in air blowing efficiency.

[0004] As a countermeasure against this, conventionally, a method of prompting the user of the ventilation fan to clean by adopting a structure that is easy to clean has been taken, but even if the structure is easy to clean, it is fixed once. Dirt is difficult to wash off, and it is inevitable that the user will feel annoyed.

The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a ventilation fan having a function of reducing and preventing adherence of dirt.

[0006]

The ventilating fan of the present invention irradiates the ventilating fan body or a ventilating fan having a hood on the ventilating fan body with ultraviolet rays of 254 nm and simultaneously emits ultraviolet rays of 185 nm for generating ozone. And a lighting circuit for lighting the ultraviolet lamp.

Further, according to the present invention, a hood and an on-off valve for opening and closing the suction port of the hood are provided on the indoor side, and an ultraviolet lamp disposed in the hood is turned on and the suction port by the on-off valve is turned on. It is characterized by performing the closure in conjunction.

[0008]

[Function] From the UV lamp, UV of 185nm and 254n
m ultraviolet light is emitted along with other wavelengths of light. 185n
The ultraviolet rays of m act on the oxygen molecules in the air to form ozone from the oxygen molecules. On the other hand, when organic matter is irradiated with ultraviolet rays of 254 nm in the atmosphere where ozone is present, the organic matter is decomposed by the following process. That is, the ozone molecules are separated into single oxygen atoms by the 254 nm ultraviolet light,
The oxygen single atom releases carbon atoms, hydrogen atoms and oxygen atoms constituting the organic substance to generate carbon dioxide, carbon monoxide and water and volatilize to decompose the organic substance. Due to this effect, when ozone generated by 185 nm ultraviolet light is supplied to the surface of an object on which organic matter is adhered and at the same time it is irradiated with 254 nm ultraviolet light, the organic matter is decomposed into carbon monoxide, carbon dioxide, and water. Volatilize.

By installing an ultraviolet lamp in the hood, the organic substances attached to the inner wall of the hood in addition to the blade and the outer frame are decomposed. In addition, the on-off valve that opens and closes the hood sufficiently supplies the generated ozone to the blades, outer frame, and the inner surface of the hood to increase the effect of decomposing organic substances, and also to prevent the emission of ultraviolet rays and the damage to human bodies and things by ozone. be able to.

[0010]

EXAMPLES Examples of the present invention will be described below. A first embodiment is shown in FIG. 1 and FIG. FIG. 1 shows a side view of the ventilation fan, and FIG. 2 shows a schematic electric circuit diagram of the ventilation fan. The fan 1 driven by the electric motor 5, the outer frame 2, and the shutter 3 for preventing the entry of wind and rain constitute a ventilation fan body.
A switch 4 for opening and closing a power source 6 for rotating the motor is provided. The shutter 3 is interlocked with the opening and closing of the switch 4, and the shutter 3 opens when the blade 1 rotates. The ultraviolet lamp 7 emits ultraviolet rays and generates ozone, and decomposes the organic substances attached to the blade 1 and the outer frame 2. The ultraviolet lamp 7 is connected to the lighting circuit 9 and the power source 11, and is started by the action of the glow lamp 10 by closing the switch 12. The switch 12 opens and closes in conjunction with the rotation of the blade 1 by the switch 4. The reflector 8 controls the light distribution so that the ultraviolet rays emitted from the ultraviolet lamp 7 are applied to the ventilation fan main body.

[0011] Generally, ultraviolet rays cause damage to the skin and eyes of the human body, and also change or deteriorate things, so that it is not preferable that the irradiation of ultraviolet rays reaches other than the ventilation fan main body. Therefore, the reflection plate 8 effectively distributes the ultraviolet rays emitted from the ultraviolet lamp 7 to the ventilation fan main body, and prevents other things from being irradiated with the ultraviolet rays. A structure is provided below which the ultraviolet radiation does not reach.

The switch 12 is operated in conjunction with the switch 4, and the ultraviolet lamp 7 is turned on when the blade 1 is rotated, and the ultraviolet lamp 7 is turned off when the blade 1 is stopped. By doing so, ozone generated by the 185 nm ultraviolet rays emitted from the ultraviolet lamp 7 is sucked into the ventilation fan main body and blown onto the blades 1 and the outer frame 2 to enhance the effect of decomposing organic substances. Further, it also has an effect of preventing ozone, which is harmful to the living body, from staying indoors.

A second embodiment of the present invention will be described below with reference to FIG. 13 in FIG. 3 is 1 in FIG. 1, 14 in FIG. 3 is 2 in FIG. 1, 15 in FIG. 3 is 3 in FIG. 1, 16 in FIG. 3 is 4 in FIG.
And so on. A hood 19 is installed to improve exhaust efficiency of oil and smoke in the room. An opening / closing valve 20 is provided at the opening of the hood 19 so that the opening can be sealed. The ultraviolet lamp 17 and the reflector 18 are located inside the hood 19 and
The ultraviolet rays emitted from the blades 13, the outer frame 14, and the inner wall of the hood 19 are installed at positions where they can be irradiated.

The electric circuit diagram is similar to that of FIG. 2 of the first embodiment, but the switch 4 and the switch 12 are not interlocked and operate as follows. When ventilation is performed, by turning on the switch 4 in FIG. 2, the blades 13 in FIG. 3 are rotated and the opening of the shutter 15 is interlocked. At this time, the on-off valve 20 is opened, the switch 12 in FIG. 2 is open, and the ultraviolet lamp 17 is not turned on. When the ultraviolet lamp 17 is turned on, the switch 12 in FIG. 2 is closed and the opening / closing valve 20 is closed. In conjunction with this, the switch 4 in FIG. 2 is short-circuited to rotate the blade 13 and the shutter 15 is opened.

Next, a third embodiment will be described. In FIG. 4, the ventilation fan main body is provided with vanes 29, an outer frame 30, and a shutter 21. An arm 27 is connected to an ultraviolet irradiation unit including an ultraviolet lamp 23 and a reflection plate 25, and a rotation shaft 28 provided on both side surfaces of the outer frame 30 is used as a fulcrum to make a quarter turn upward and downward of the ventilation fan main body. The structure is such that it can be moved to and from the position, and can be fixed at the position directly below and a quarter turn. UV lamp 23, reflector 25,
While the arm 27 is rotated upward by a quarter and fixed, the ultraviolet light emitted from the ultraviolet lamp 23 is effectively distributed to the ventilation fan main body, and other things are not irradiated with the ultraviolet light. In particular, the structure is such that the radiation of the ultraviolet rays does not reach below the ventilation fan, which is highly likely to be operated by a person.

When the ventilation fan is used for a normal purpose, as shown in FIG.
As described above, the ultraviolet radiation unit is arranged immediately below the outer frame, the blades 29 are rotated, and the shutter 21 is opened. At this time, the ultraviolet lamp 23 is not turned on. When operating the function of preventing dirt from sticking, as shown in FIG. 5, the ultraviolet unit is fixed in a state of being rotated upward by a quarter, the ultraviolet lamp 23 is turned on, the blade 29 is rotated, and the shutter is released. 21 is opened.

Further, an ultraviolet lamp that radiates ultraviolet rays of at least 185 nm and 254 nm irradiates the blades and the outer frame of the ventilation fan main body with the ultraviolet rays, and ozone generated near the ultraviolet lamp is located at a position where it is easily ventilated by the ventilation fan main body. If installed, it is possible to more effectively decompose and volatilize the organic substance, which is the main component of the dirt adhering to the blades and the outer frame, to volatilize and reduce or prevent the adhesion of dirt.

Further, by making the ultraviolet lamp movable between the position directly below the ventilation fan body and the position where the blades face each other, it is possible to prevent a reduction in ventilation efficiency that occurs when the ultraviolet lamp and the reflector are fixed to the front surface of the ventilation fan body. it can. In addition, since the ventilation fan and the ultraviolet radiation unit are integrated, compared to the case where the ultraviolet lamp and the ventilation fan body are separated,
It is easy to install a ventilation fan. In addition, since ozone is ventilated while the ultraviolet lamp is on, ozone that is harmful to the human body does not stay indoors.

[0019]

As described above, the ozone generated by the 185 nm ultraviolet rays emitted from the ultraviolet lamp and the 254 nm
The effect of decomposing organic matter by ultraviolet rays decomposes organic matter adhering to the blades, outer frame, hood, etc., and can reduce or prevent the adherence of dirt, thus realizing an excellent ventilation fan that can be easily cleaned. .

Further, by installing an ultraviolet lamp in the hood, the blades and the outer frame are sufficiently irradiated to decompose organic substances attached to the inner wall of the hood. Furthermore, the on-off valve that opens and closes the hood can supply the generated ozone sufficiently to the blades, the outer frame, and the inner surface of the hood to increase the effect of decomposing organic substances, and prevent injury to human bodies and damage to things.

[Brief description of drawings]

FIG. 1 is a side view of a ventilation fan according to a first embodiment of the present invention.

FIG. 2 is a schematic electric circuit diagram for controlling the ventilation fan.

FIG. 3 is a side view of a ventilation fan according to a second embodiment of the present invention.

FIG. 4 is a perspective view of a ventilation fan according to a third embodiment of the present invention.

FIG. 5 is a perspective view showing an ultraviolet irradiation state of the ventilation fan of the third embodiment.

[Explanation of symbols]

1, 13, 29 blades 2, 14, 30 outer frame 3, 15, 21 shutter 4, 16, 22 blade drive switch 5 electric motor 6, 11 power supply 7, 17, 23 UV lamp 8, 18, 25 Reflector 9 lighting circuit 10 glow lamp 12 UV lamp lighting switch 19 hood 20 open / close valve 27 arms 28 rotation axis

Claims (3)

[Claims] 1. A ventilating fan main body having a vane driven by an electric motor and an outer frame of the vane as constituent elements, an ultraviolet lamp emitting at least 254 nm ultraviolet ray and 185 nm ultraviolet ray to the ventilating fan main body, and the ultraviolet lamp. A ventilation fan having a lighting circuit for lighting. 2. The hood according to claim 1, wherein a hood and an on-off valve for opening and closing the suction port of the hood are provided on the indoor side, and an ultraviolet lamp disposed in the hood is turned on and the inhalation is performed by the on-off valve. Ventilation fan characterized by interlocking the mouth closure. 3. The ventilation fan according to claim 1, wherein the ultraviolet lamp is arranged to face the blade on the indoor side and is rotatably supported on the side surface of the ventilation fan main body.