JPS636330A - Indoor air treating device of air conditioner and the like - Google Patents

Abstract

PURPOSE:To prevent growth and breeding of microorganism, e.g. mold, by a method wherein dew formed in a device and water staying or stored in a device are brought into contact with a part on which mildewproofing agent is coated. CONSTITUTION:Mold is especially apt to grow in an air blasting system through which indoor air flows, but microorganism, e.g. mold, is also apt to grow at the interior of a drain tray 1 positioned a side from the air blasting system. Therefore, mildewproofing agent is coated on the drain tray 1 of an air conditioner. After 0.1-2wt% the mildewproofing agent is previously added in a raw material resin, e.g. ABS, polypropylene (PP), polystyrol (PS) or nylon, to mold the drain tray 1. For example, cyanobendazole, parachloromethaxynol, zincpyrithion or the like is suitable for the mildewproofing agent. Arrangement of a part, on which the mildewproofing agent is applied, in a spot where mold is apt to grow enables effective prevention of growth and breeding of microorganism, e.g. mold.

Description

Detailed Description of the Invention [Object of the Invention] (Industrial Application Field) The present invention relates to an indoor air treatment device such as an air conditioner that prevents the growth of mold.

(Prior art) Conventionally, the temperature and humidity inside an air conditioner are suitable for the growth of microorganisms such as mold, so mold grows in the ventilation system, and the mold blows out from the air outlet, causing health problems. There was a problem with it emitting a strange odor.

This is due to improvements in housing functions related to airtightness, and the fact that air conditioners provide conditions suitable for the breeding of these house dusts.

Places where mold is most likely to grow in an air conditioner are, for example, the drain pan 1 and air filter 2 shown in FIG.

On the other hand, like an air conditioner, indoor air! ? ! Also in a dehumidifier, which is a heat exchanger 1, as shown in Figure 3,
Conventionally, the drain water generated at 0 is stored in the drain tank 11 until it reaches a certain amount, which has the following disadvantages.

■ If water remains in the tank 11 for a long time,
Microorganisms may grow in the water and produce a bad odor.

■ Slime adheres to the wall of tank 11 and cleanliness cannot be maintained.

Furthermore, as shown in Figure 5, slime caused by mold and microorganisms is likely to occur in the atomization tank 2° of an ultrasonic humidifier, which has the same conditions as air conditioners and dehumidifiers, and the mist is blown into the room. As a result, there was a risk of harming the user's health.

(Problems to be Solved by the Invention) As described above, there has been a problem in that indoor air processing devices such as air conditioners, dehumidifiers, humidifiers, etc. grow mold and harm the indoor environment.

Therefore, an object of the present invention is to provide an indoor air treatment device for an air conditioner that can solve the above-mentioned conventional problems and effectively prevent the growth of microorganisms such as mold by using a fungicide.

[Structure of the Invention] (Means for Solving the Problems) The indoor air treatment device such as an air conditioner of the present invention is provided with parts treated with a fungicide in areas where mold is likely to grow. be.

Indoor air processing equipment refers to dehumidifiers, humidifiers, air purifiers, etc. in the pond of an air conditioner, and is installed indoors for the purpose of heating, cooling, humidifying, dehumidifying, and purifying indoor air. It refers to something that has conditions that allow microorganisms such as mold to grow easily in the process of achieving that purpose.

(Function) Since the condensation that occurs within the device and the water that collects or is stored in the device come into contact with parts that have been treated with fungicides, the growth and propagation of microorganisms such as mold can be suppressed.

(Example) An example of the present invention will be described below based on FIGS. 1 to 6.

Figure 1 shows the internal structure of an air conditioner. Indoor air a enters the interior through an air filter 2, and a heat exchanger 3.
The heat is exchanged with the air, and then the air is blown into the room from the blow-off grill 5 via the cross-flow fan 4. Note that 6 is a casing. Mold is particularly likely to grow in such a ventilation system through which indoor air passes, but microorganisms such as mold are also likely to grow inside the drain pan 1, which is outside the ventilation system. This is because the drain dish 1 receives drain water falling from the heat exchanger 3, and this drain water contains human sweat and the like.

Therefore, in the first embodiment of the present invention, the drain 1II11 of this air conditioner is subjected to anti-fungal treatment.

For example, the drain plate 1 is molded after adding 0.1 to 2% by weight of a fungicide to a raw material resin, such as ABS1 polypropylene (PP), polystyrene (PS), or nylon, which becomes the drain layer. Suitable anti-sigma agents include, for example, cyanobendazole, parachloromethaxylenol, zinc pyrithione, and the like. Here, add 0.0% of the fungicide.
The reason why it is limited to 1 to 2% by weight is that if it is less than 0.1% by weight, the antifungal effect is insufficient, and if it is more than 2% by weight, it will damage the mechanical properties of the drain pan. .

The drain plate treated in this way is called 8.

Another anti-fungal treatment method is to coat the surface of a molded drain pan or an existing drain pan with the above-mentioned anti-fungal agent. A fungicide may be directly coated, or a resin or paint to which o,isum% or more of a fungicide is added may be coated. The drain plate treated in this way is called B.

In order to confirm the mold resistance of the drain pan created in this way, we conducted a mold resistance test based on the regulations of MSL E5272G using plate-shaped test pieces cut from each of A and B. A large number of molds were observed on conventional products that were not treated with anti-mold treatment, but
No mold growth was observed in both samples B and B, and a remarkable antifungal effect was obtained.

Furthermore, after operating the air conditioners using A and B of this example for one month, we investigated the mold growth on the drain pan, and found that while mold was observed on the conventional products, there was no mold growth on the drain pans. No such trend was observed.

As mentioned above, by molding the drain tray with a material to which a fungicide has been added in advance, or by coating the molded drain tray with a fungicide, mold-producing microorganisms that can grow on the drain tray can be easily removed. Furthermore, by adding an appropriate amount or coating it, it is possible to exhibit a fungicidal effect without impairing the mechanical properties of the drain pan.

As a result, there is no mold or odor emitted from the air conditioner, and there is no need to increase the ventilation frequency due to mold or odor.

In the second embodiment of the present invention, an air filter 2 constituting a part of the air blowing system shown in FIG. 1 is subjected to mold-proofing treatment, and as shown in FIG. After kneading the agent, the air filter is created through the normal manufacturing process. The type of fungicidal agent and the amount added thereof are the same as in the first example from the viewpoint of maintaining the antifungal effect and the mechanical properties of the net.

Furthermore, the air filter after being produced may be coated with a fungicide.

In order to confirm the mold-preventing effect of the air filter created in this way, a test was conducted under the same conditions as in the first example, and a large number of mold colonies were observed in the conventional product.
No mold colonies were observed on this air filter.

Note that by making the mesh of the air filter even finer, the antifungal effect can be further improved.

3 and 4 show a third embodiment in which the present invention is applied to a dehumidifier.

As shown in FIG. 3, the drain water from the heat exchanger 10 received by the drain 1lI 112 is stored in a drain tank 11 until it reaches a certain amount, and this drain tank 11 is treated with anti-fungal treatment. This process is performed as follows: 0.1 as in the first example;
The drain tank is manufactured by blow molding a resin material such as polyethylene (PE) or PP mixed with a fungicide in the range of ~2% by weight (C), or mold-proofing is applied to a molded drain tank. This is done by coating (D) with an agent.

Moreover, instead of treating the drain tank 11 itself, as shown in FIG. ! You may also do so.

The same test results as in the first example were obtained for the drain tanks C and D described above. In addition, when we performed dehumidification operation on the same cylinders for C1D and E for one month, slime formed on the inner wall of the tank and a strange odor appeared in the conventional product, but C,
These effects were not observed in either D or E, and the effect was confirmed.

5 and 6 show a fourth embodiment in which the present invention is applied to an ultrasonic humidifier.

As shown in FIG. 5, the water 22 in the tank is atomized by the vibration of the ultrasonic vibrator 21 attached to the bottom of the jM Ihi tank 20 and blown out from the air outlet 23 at the top. The chemical tank 20 was subjected to the same anti-fungal treatment as in the first to third embodiments. The same test results as in the first example were obtained for this product as well.

In addition, as shown in Fig. 6, a plate material 24 containing a fungicide, for example, a PP material of 10 x 10 x 2 tons mixed with a fungicide of 0.2% or more by weight, is installed or floated as a float in the atomization [20]. You can do it like this.

A humidifier equipped with the atomization tank 20 shown in FIGS. 5 and 6 is 2'!
When the atomization tank was inspected after running for Fi, the generation of microorganisms was observed in the atomization tank with the conventional product, but no microorganisms were observed with the crystal.

In this way, slime caused by microorganisms such as mold is not generated in the atomization tank of an ultrasonic humidifier, so it is especially useful for ultrasonic humidifiers that pulverize not only water but also slime and blow it into the room. , there is no danger of harming the user's health, and the effect is great.

Note that the humidifier can be applied not only to an ultrasonic humidifier but also to a centrifugal humidifier.

[Effects of the Invention] In summary, according to the present invention, by providing parts coated with a fungicide in areas where mold is likely to grow, it is possible to effectively suppress the generation and propagation of microorganisms such as mold. There will be no more mold, etc., or strange odors.

[Brief explanation of the drawing]

Fig. 1 is a structural diagram of main parts of an air conditioner common to the present invention and the conventional one, Fig. 2 is a manufacturing process diagram of an air filter according to an embodiment of the present invention, and Fig. 3 is a diagram showing the main parts of the air conditioner common to the present invention and the conventional one. FIG. 4 is a structural diagram of the main parts of a common dehumidifier, FIG. 4 is a structural diagram of a drain tank of a dehumidifier according to another embodiment of the present invention, and FIG. 5 is a fog diagram of an ultrasonic humidifier common to the present invention and the conventional one. FIG. 6 is a structural diagram of an atomization tank of an ultrasonic humidifier according to yet another embodiment of the present invention. In the figure, 1 is the drain of the air conditioning system, 2 is the same air filter, 11 is the drain tank of the dehumidifier, 13 is a board containing a fungicide, 20 is an atomization tank, and 24 is a board containing a fungicide. be. Representative Patent Attorney Noriyuki Chika Udo Yukio Yama
m-” Absolutely

Claims (10)

[Claims] (1) Indoor air processing equipment, such as an air conditioner, characterized by having parts treated with a fungicide in areas where mold is likely to grow. (2) The parts treated with the above fungicide are 0.1 to 0.
Claim 1, characterized in that it is molded from a resin such as ABS, polypropylene, polystyrene, or nylon to which 2% by weight of a fungicide such as cyanobendazole, parachromataxylenol, or zinc pyrithione is added. Apparatus described in section. (3) Claim 1, characterized in that the above-mentioned parts treated with a fungicide are made of members coated with a fungicide such as cyanobendazole, paracrometaxylenol, or zinc pyrithione. The device described. (4) The device according to claim 1, 2, or 3, wherein the component is a drain pan of an air conditioner. (5) The device according to claim 1, 2, or 3, wherein the component is an air filter of an air conditioner. (6) The device according to claim 5, wherein the air filter has a fine mesh. (7) The device according to claim 1, 2 or 3, wherein the component is a drain tank of a dehumidifier. (8) The device according to claim 1, 2, or 3, wherein the component is an atomization tank of a humidifier. (9) The device according to claim 1, 2, or 3, wherein the component is attached to a part of the inner wall of the drain tank of the dehumidifier that is always in contact with water. (10) Claims 1, 2, or 3, characterized in that the component is an installation or a float installed in the atomization tank of a humidifier so as to be in constant contact with water. Device.