JPH09292137A - Cold fan - Google Patents

Abstract

(57) [Abstract] [Problem] To prevent mold and bacteria from mixing into air (cold air) from which heat of vaporization is deprived. A water-absorbing ceramic body having upper and lower surfaces, left and right side surfaces, and a front and rear surface: water is stored, and a lower surface of the ceramic body is positioned in a water tank 11g: the water is absorbed to absorb the water. A water supply body 25 that supplies water to the front and rear surfaces and an upper surface and has a higher water absorption than the ceramic body 20: an optical semiconductor catalyst 27 disposed on the surface of the water supply body 25: and the left and right sides of the ceramic body 20. A cool air fan having a fan 24 disposed near one of the side surfaces, wherein the air sucked by the fan 24 and passing through the ceramic body 20 is cooled by the heat of vaporization of the water, The water in the water absorbent ceramic body 20 is sterilized by using the optical semiconductor catalyst 27.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold air fan that obtains cold air by utilizing heat of vaporization.

[0002]

2. Description of the Related Art Generally, in a cold fan that obtains cold air by utilizing heat of vaporization, the vaporization part is always in a wet state as water is stored in a water tank for a long time. We have created a substrate for breeding algae. However, when these bacteria and the like propagate inside the cold air fan, cold air containing these bacteria is released indoors, which adversely affects the human body and emits a foul odor. In order to eliminate such a problem, in the apparatus disclosed in Japanese Utility Model Laid-Open No. 4-27315, the water in the water tank is heat-sterilized. In this heat sterilization, however, the temperature inside the water tank was raised to 70 degrees Celsius every time the cold air fan was operated, and then this state was maintained for 10 minutes.

[0003]

However, in order to sterilize mold spores, the condition raised to 120 degrees Celsius is 1
It is necessary to hold for about 0 minutes, and the above-mentioned heat sterilization is not sufficient. Not only that, the water in the aquarium with a large specific heat is heated each time it is run, so a large-capacity heater must be provided to complete heat sterilization in a short time, which leads to an increase in the size of the device. It was

Therefore, the present invention has a technical object to provide a cold air fan that does not have such a problem.

[0005]

In order to solve the above technical problems, the technical means taken in the invention of claim 1 is a water-absorbing ceramic body having upper and lower surfaces, left and right side surfaces and front and rear surfaces: water. A water tank in which the lower surface of the ceramic body is located: a water supply body that absorbs the water and supplies the water to the front and rear surfaces and the upper surface of the ceramic body, the water supply body having a higher water absorption than the ceramic body: the water absorption A photosemiconductor catalyst disposed on the surface of the body, and a fan disposed near either one of the left and right side surfaces of the ceramic body, and the air sucked by the fan and passing through the ceramic body is That is, the cold air fan is configured to be cooled by the heat of vaporization of water.

[0006]

In the above structure, when the photosemiconductor catalyst receives light in a water-containing state, it has a bactericidal action, and prevents bacteria and mold from propagating in water in the water supply body and the ceramic body.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a cold air fan according to the present invention will be described below with reference to the accompanying drawings.

1 to 5, the cold air fan 10 has an outer case 11. Upper surface wall 11a of the outer case 11
Has a push-type switch (not shown)
By pressing this switch, the rotary fan 24 operates as described later, and cool air is blown out from the air outlet 13 formed in the front wall 11b of the outer case 11. The blowing direction of the cold air can be appropriately adjusted by the fins 14 that rotate about an axis (not shown). In addition, a pair of wall mounting holes 11f are formed in the rear wall 11d of the outer case 11.

An intake port 18 is formed in the right side wall 11c of the outer case 11, and the air filter 1 is provided in the intake port 18.
9 is mounted. The bottom portion 11g of the outer case 11 is
It constitutes the water tray. On the bottom portion 11g of the outer case 11, the lower surface of the porous and water-absorbing ceramic body 20 serving as a vaporizer is placed, and extends in the upward direction and the lateral direction. In the ceramic body 20, passages 20a penetrating in the left-right direction are arranged in the up-down and front-back directions in an orderly manner. The right side surface of the ceramic body 20 is in close contact with the air filter 19. Left side of ceramic body 20 and outer case 1
An elbow-shaped fan case 23 is disposed between the air outlet 13 and the first air outlet 13, and a fan 24 that rotates when a push-type switch is pressed is mounted in the fan case 23.

The front and rear surfaces and the upper surface of the ceramic body 20 are
It is covered with a sheet-like water supply member 25 made of a sponge or other water-absorbing material, and the edge of the lower opening of the water-absorbing water supply member 25, together with the vicinity of the lower surface of the ceramic body 20, has an exterior. It is immersed in water in the bottom portion 11g of the case 11. The water absorbing capacity of the water absorbent water supplying member 25 is larger than that of the ceramic body 20, and the water absorbed by the water absorbing water supplying member 25 is supplied to the front and rear surfaces and the upper surface of the ceramic body 20. There is. Thus, water is supplied to the entire ceramic body 20. On the upper surface and front and rear surfaces of the water absorbent water supply member 25,
The optical semiconductor catalyst sheet 27 is attached.

A water tank 29 is provided in a space 28 defined between the outer case 11 and the front and upper surfaces of the ceramic body 20.
Is mounted, and a makeup water adjusting device 30 is formed to project from the bottom of the water tank 29. And water tank 2
When the bottom of 9 is locked to the intermediate portion 11j, the makeup water adjusting device 30 abuts against the bottom 11g of the outer case 11 and retracts to open, so that the water in the water tank 29 is the bottom 11g of the outer case 11 serving as a water tray. It is designed to be supplied inside. Water tank 2
9 has an inverted L-shaped cross section and includes a vertical portion 29a extending in the vertical direction and a horizontal portion 29b extending from the upper portion of the vertical portion 29a to the rear. The water tank 29 is made of a transparent or translucent material so that light can easily pass therethrough.

A rear half of the upper surface 11a of the outer case 11 (on the rear surface 11d side) is inclined downward, and a transparent lighting window 31 is mounted on this portion. Further, a glossy silver sheet-shaped reflection plate 32 is attached to the inner surface of the front portion 11b and the inner surface of the rear portion 11d of the outer case 11. A transparent plate 33 with a water level scale is fitted to the front portion 11b of the outer case 11 so that the amount of water in the water tank 29 can be confirmed.

Light that has entered the space 28 in the outer case 11 through the lighting window 31 is transmitted to the photosemiconductor catalyst sheet 27. Then, the route is as follows.

(1) Directly transmitted to the photosemiconductor catalyst sheet 27.

(2) It is transmitted to the photosemiconductor catalyst sheet 27 through the water tank 29.

(3) It is reflected by the reflection plate 32 in the form of a glossy silver sheet attached to the inner surface of the front part 11a of the outer case 11,
It is transmitted to the photosemiconductor catalyst sheet 27 through the water tank 29.

(4) The light is reflected by the reflection plate 32 in the form of a glossy silver sheet attached to the inner surface of the rear portion 11d of the outer case 11 and transmitted to the photosemiconductor catalyst sheet 27.

When light is transmitted to the photosemiconductor catalyst sheet 27 containing water along such a path, the photosemiconductor catalyst sheet 27 exhibits a bactericidal action and is absorbed in the water absorbent water supply member 25 and the ceramic body 20. Perform sterilization of water.

When the fan 24 rotates, air is drawn into the intake port 1.
8 is sucked toward the fan 24 side.
The movement of the air by this suction is performed by passing through each passage 20a of the ceramic body 20 containing water, but the heat in the air is taken away by the vaporization of the water in each passage 20a in the ceramic body 20. The air blown out from the air outlet 13 becomes cold air. Thus, the water is supplied to the passages 20a in the ceramic body 20 directly from the bottom 11g of the outer case 11 from the lower surface of the ceramic body 20, and the water is absorbed from the ceramic body 20 from the bottom 11g of the outer case 11. Since water is supplied to the upper and front and rear surfaces of the ceramic body 20 through the water supply member 25 having a high property, water is uniformly supplied to the upper and lower surfaces and front and rear surfaces of the ceramic body 20 as a whole. Thus, the amount of water supplied into each passage 20a becomes uniform, the heat of vaporization of the air is removed evenly, and the temperature of the cold air blown out from the air outlet 13 is eliminated. At the same time, the vaporization performance can be fully exerted and the required amount of cold air can be secured. Since the vaporized water is sterilized as described above, cold air containing mold, bacteria, etc. is not discharged indoors. In addition, since the vaporized water is sterilized without using the heater, it is possible to avoid increasing the size of the device and consuming a large amount of electric power.

Instead of the optical semiconductor catalyst sheet 27 described above, the following may be used.

(1) As shown in FIGS. 6 and 7, a plurality of strip-shaped photosemiconductor catalysts 27A are attached to a water-absorptive water supply member (not shown) on the ceramic body 20 at equal intervals.

(2) As shown in FIGS. 8 and 9, the width of the photosemiconductor catalyst sheet 27 is about half the width of the water absorbing and water-supplying member (not shown) on the ceramic body 20, and the slits 50 are formed in the vertical direction. Are formed at equal intervals in the lateral direction (width direction). Such an optical semiconductor catalyst sheet 27 is pulled in the width direction and attached to a water absorbing and water supplying member (not shown) on the ceramic body 20. In this case, each slit is a diamond-shaped void or hole.

(3) As shown in FIGS. 8 and 9, the width of the optical semiconductor catalyst sheet 27 is set to about half the width of the water absorbing and water-supplying member (not shown) on the ceramic body 20, and the slit 50 is formed in the vertical direction. Are formed at equal intervals in the lateral direction (width direction). Such an optical semiconductor catalyst sheet 27 is pulled in the width direction and attached to a water absorbing and water supplying member (not shown) on the ceramic body 20. In this case, each slit is a diamond-shaped void or hole.

(4) As shown in FIGS. 10 and 11,
On the outer surface of the water absorbent / water supply member 25 on the ceramic body 20,
The optical semiconductor catalyst fine powder 27P is welded.

[0025]

As described above, according to the first aspect of the invention, the water in the ceramic body is completely sterilized without using a heater, so that the heat of vaporization of the air passing through the ceramic body is removed. The generated cold air does not contain bacteria and mold.

Further, since the vaporized water is sterilized without using a heater, it is possible to avoid an increase in size of the apparatus and a large amount of power consumption.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an embodiment of a cold air fan of the present invention.

FIG. 2 is a vertical sectional view taken along the line AA in FIG.

FIG. 3 is a cross-sectional view showing in detail the relationship between the photosemiconductor catalyst sheet and the water absorbent water supply member in FIG.

FIG. 4 is a plan view of the photosemiconductor catalyst sheet in FIG.

5 is a perspective view of the photosemiconductor catalyst sheet in FIG. 1. FIG.

FIG. 6 is a plan view of a first modified example of the photosemiconductor catalyst sheet.

7 is a perspective view of the photosemiconductor catalyst sheet in FIG.

FIG. 8 is a plan view of a second modified example of the photosemiconductor catalyst sheet.

9 is a perspective view of the photosemiconductor catalyst sheet in FIG.

FIG. 10 is a plan view of a third modification of the photosemiconductor catalyst sheet.

11 is a perspective view of the photosemiconductor catalyst sheet in FIG.

FIG. 12 is a plan view of a water-absorbing and water-supplying member on which optical semiconductor catalyst fine powder is welded. 10 Cold Air Fan 11g Water Tank 20 Ceramic Body 24 Fan 25 Water Supply Body 27 Optical Semiconductor Catalyst 27A Optical Semiconductor Catalyst

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masahiro Ichikawa 2-1, Asahimachi, Kariya city, Aichi Aisin Seiki Co., Ltd.

Claims (1)

[Claims] 1. A water-absorbent ceramic body having upper and lower surfaces, left and right side surfaces, and front and rear surfaces: a water tank for storing water, and a lower surface of the ceramic body is located: front and rear surfaces of the ceramic body for absorbing the water A water supply body that supplies the water to the upper surface and has higher water absorption than the ceramic body: a photosemiconductor catalyst disposed on the surface of the water body: and in the vicinity of one of the left and right side surfaces of the ceramic body. A cold air fan having a fan disposed therein, wherein air sucked by the fan and passing through the ceramic body is cooled by heat of vaporization of the water.