JP2013079804A - Air conditioning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an air conditioning device that continues to operate while still maintaining an antiseptic effect.SOLUTION: The air conditioning device includes a negative electric charge charging part 4, a base material, and an indoor blower fan 6. The negative electric charge charging part 4 negatively charges dust or moisture contained in the air. Polyaniline is applied to the base material or the base material contains polyaniline. The indoor blower fan 6 generates air stream such that air flows from the negative electric charge charging part 4 to the base material. Electrons are supplied to polyaniline from the dust or the moisture charged negatively by the negative electric charge charging part 4.

Description

  The present invention relates to an air conditioner having a function of maintaining internal cleanliness, and mainly relates to sterilization inside the air conditioner.

  Conventionally, in an air conditioner, room air is sucked into an indoor unit, the sucked room air is sent to an indoor heat exchanger to exchange heat, and the air after heat exchange is blown out into the room again. For this reason, microorganisms and dust floating in the air are sucked into the indoor unit together with the indoor air, and they adhere to the inner wall surface of the indoor unit, the indoor heat exchanger, etc., and mold, yeast, There is a problem in that microorganisms such as bacteria grow using organic matter in dust as a nutrient source.

  In particular, during cooling operation, moisture in the air cooled by the heat exchanger is condensed on the air passage wall surface and remains as water droplets. If water remains in the air passage, the relative humidity in the space increases, and the growth of mold and fungi is promoted. In addition, odors are generated by the metabolites of molds and fungi, causing bad odors when operating the air conditioner, and mold spores and bacteria may be blown into the air conditioning room, causing allergies and other harmful effects to the human body. It is known.

  As a means of controlling mold and fungi that grow in such humid places, the method of applying antibacterial agent or kneading on the side of the airway, or the method of eluting water-soluble materials and metal ions was adopted. Things are known.

  However, when the antibacterial agent is applied or kneaded, if dust or the like accumulates on the surface, the bacteria cannot contact the antibacterial agent, so that antibacterial performance cannot be obtained, and furthermore, resistant bacteria that do not work with the antibacterial agent are generated. Therefore, there was a problem that a permanent sterilizing effect could not be obtained. In the method of eluting water-soluble materials and metal ions, it is possible to pass the accumulated dust by contacting the antibacterial agent by eluting the antibacterial component in the water droplets adhering to the surface. If it was completely eluted, the antibacterial component disappeared and there was a problem that the bactericidal effect could not be obtained.

  In response to these problems, polyaniline is used as the material to be applied and contained, and electrons are given to oxygen in the water droplets to generate active oxygen having a strong oxidizing power, thereby generating resistant bacteria and eliminating antibacterial components. There has been proposed one that can realize sterilization and antifouling of the surface without fear (see Patent Document 1).

  In addition, when active oxygen is generated from water by the catalytic action of polyaniline, the structure of polyaniline changes to an oxidized form incapable of generating active oxygen, and no active oxygen is generated. However, by drying polyaniline, The ability to generate active oxygen can be recovered by returning the polyaniline structure to a reduced structure capable of generating active oxygen.

JP 2002-71296 A (page 3)

  In conventional heat exchanger contamination prevention methods, polyaniline is dried as a means of recovering the ability to generate polyaniline that has lost the ability to generate active oxygen, so the surface of the substrate on which polyaniline is applied In order to dry the air-conditioner, the operation of the air conditioner must be stopped, it takes time to recover the active oxygen generation capacity, and the air conditioner cannot be operated continuously while maintaining the sterilizing effect. There was a drawback.

  This invention is made | formed in view of the said problem, and it aims at providing the air conditioning apparatus which can be continuously drive | operated, maintaining a sterilization effect.

  The air conditioner according to the present invention has a negative charge charging unit that charges negative charges to dust or moisture in the air, a base material coated or contained with polyaniline, and air flows from the negative charge charging unit to the base material. In this way, the polyaniline is supplied with electrons from dust or moisture charged with a negative charge by the negative charge charging unit.

  The air conditioner according to the present invention can be operated continuously while maintaining the sterilizing effect.

It is a block diagram of the indoor unit of the air conditioning apparatus which concerns on Embodiment 1. FIG. 2 is a configuration diagram of a negative charge charging unit according to Embodiment 1. FIG. 3 is a characteristic diagram of polyaniline according to Embodiment 1. FIG. 6 is a configuration diagram of an air-conditioning apparatus according to Embodiment 2. FIG. [Fig. 5] Fig. 5 is a configuration diagram of an air-conditioning apparatus according to Embodiment 3. It is a block diagram of the air conditioning apparatus which concerns on Embodiment 4. FIG. 6 is a configuration diagram of a negative charge charging unit according to a fourth embodiment. 6 is a configuration diagram of a dust collection unit according to Embodiment 4. FIG.

Hereinafter, preferred embodiments of an air conditioner according to the present invention will be described with reference to the accompanying materials. Note that the present invention is not limited by these embodiments.
Embodiment 1 FIG.
Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 1 is a configuration diagram of an indoor unit of an air-conditioning apparatus according to Embodiment 1 of the present invention, FIG. 2 is a configuration diagram of a negative charge charging unit according to Embodiment 1, and FIG. 3 is according to Embodiment 1. It is a characteristic view of polyaniline.

  The air conditioner is composed of an outdoor unit (not shown) installed outdoors and an indoor unit 1 installed on the upper wall surface of the room that performs air conditioning. A valve, an outdoor heat exchanger, an expansion valve, and an indoor heat exchanger 2 provided in the indoor unit 1 are connected so as to form a refrigeration cycle, and the indoor unit 1 is switched by switching the refrigerant flow direction using a four-way valve. The installed room can be cooled and heated.

  As shown in FIG. 1, an indoor unit 1 is provided so as to cover a heat exchanger 2 for adjusting temperature and humidity of indoor air and the heat exchanger 2, and a prefilter that prevents dust from adhering to the heat exchanger 2. 3. Negative charge charging unit 4 that charges water or dust in the air with a negative charge, suction port 5 for taking air into the indoor unit 1, and indoor ventilation that sends the taken air to the heat exchanger 2 and flows outside the indoor unit A fan 6, a discharge port 7 for discharging the air in the indoor unit, and a flap 8 for changing the discharge direction are provided.

  Each of the indoor heat exchangers 2 is a so-called finned-tube heat exchanger composed of a plurality of aluminum fins and a copper pipe penetrating the fins in a meandering manner.

  The pre-filter 3 is composed of, for example, a sheet knitted in a mesh shape with resin fibers, and is attached to a frame member. The pre-filter 3 removes dust and dirt contained in the air sucked from the suction port 5 and exchanges heat in the room. The container 2 is prevented from becoming dirty. In addition, since dust and the like adhere to the prefilter 3 by this operation, it is necessary for the user to clean it regularly. However, recently, a mechanism for automatically removing dust and dirt from the pre-filter 3 may be provided.

  The indoor blower fan 6 is driven to rotate by a indoor fan motor (not shown) in a horizontally long lateral flow blade whose longitudinal direction is the rotation axis direction in a main body case of a horizontally long casing in which a discharge port 7 is formed. Is provided. Furthermore, a casing portion (not shown), which is an air path of the indoor blower fan 6, is formed from the suction port 5 serving as a suction port for room air of the indoor unit 1 toward the discharge port 7.

  The discharge port 7 is formed as a blower opening / closing mechanism that opens and closes the discharge port 7, and a flap 8 that is elongated in the left-right direction and whose left and right ends are pivotally supported is vertically moved by a flap motor (not shown). The discharge port 7 can be opened and closed by rotating the flap 8. Further, the discharge port 7 is closed by closing and turning the flap 8.

  The indoor blower fan 6 is coated with a mixture of a water-absorbing material and polyaniline. Since the water-absorbing material is applied together with polyaniline, moisture can be adsorbed actively to the substrate on which polyaniline is applied, and the substrate surface is hydrophilic so that the moisture spreads evenly and efficiency. Thus, active oxygen can be generated.

  As an example of the water-absorbing material, a material composed of one or more of silica, zeolite, desiccite, allophane, and imogolite can be given. The polyaniline and the water-absorbing material may be directly contained in the substrate as long as the polyaniline and the water-absorbing material are exposed on the surface.

  The polyaniline applied to the substrate is made as follows. 1 g of polyaniline was dissolved in a mixture of 100 ml of N-Methylpyrrolidone and 5 ml of acetic acid. To this, a solution prepared by dissolving 0.75 g of m-chloroperbenzoic acid in 10 ml of acetic acid was added little by little and stirred for 1 hour. The resulting precipitate is filtered and washed thoroughly with acetone to obtain doped polyaniline (emeraldine salt).

  The negative charge charging unit 4 is installed on the windward side of the indoor blower fan 6 and, as shown in FIG. 2, the conductive high voltage electrode 9 in which a part of the electrode member has a sharp shape is opposed to the conductive. An electrode 10 and a high-voltage power supply 11 that connects both electrodes are configured. A high voltage of 11 kV is applied between the high-voltage electrode 9 and the counter electrode 10 by a high-voltage power supply 11 and discharge is generated to ionize dust and moisture mixed in the air inside the indoor unit. To charge negative charges. The discharge generated at this time may be a corona discharge, a glow discharge, a streamer discharge, or other creeping discharge. In any case, the generated ions are negative ions.

Next, in FIG. 3, in the base (a) to which polyaniline is not applied, the polyaniline-coated base (b), and the polyaniline-coated base (c) provided with the negative charge charging unit 4 in the previous stage, The result of comparing changes in the number of remaining bacteria is shown. A micrococcus bacterium adjusted to 10 ⁵ cfu / mL was dropped on the surface of the substrate not coated with polyaniline and the surface of the substrate coated with polyaniline, and the change in the number of bacteria remaining on the substrate surface was verified.

  As a result, as shown in FIG. 3, the base (a) to which polyaniline is not applied is compared with the polyaniline-coated base (b) and the polyaniline-coated base (c) provided with the negatively charged portion 4 in the previous stage. There is little decrease in the number of remaining bacteria. On the other hand, the polyaniline-coated substrate (b) is saturated at a predetermined time or more, although a significant decrease in the number of remaining bacteria is observed in the initial stage. In contrast, in the polyaniline-coated substrate (c) provided with the negative charge charging portion 4 in the previous stage, it can be seen that the number of bacteria continues to decrease with time. Therefore, by providing the negative charge electrification part 4 in the previous stage of the polyaniline coated substrate, active oxygen can be continuously generated and the bactericidal effect can be continuously maintained.

Next, the operation will be described.
Air containing dust is sucked into the indoor unit 1 through the suction port 5 by the indoor blower fan 6, passes through the prefilter 3, passes through the heat exchanger 2, and flows to the negative charge charging unit 4. When the air conditioning apparatus uses cooling operation, when air passes through the heat exchanger 2, moisture in the air cooled by the heat exchanger 2 is condensed on the heat exchanger 2 and the surrounding casing. Remains as water droplets.

  When water remains in the heat exchanger 2 and the casing, the relative humidity in the space increases, and a large amount of moisture is mixed in the air around the heat exchanger 2 and the air that has passed through the heat exchanger 2. The air containing dust and moisture passes through the negative charge charging unit 4 and the negative charge is charged to the dust and moisture in the air. The air containing dust and moisture charged with negative charge flows to the indoor blower fan 6, and dust and moisture charged with negative charge adhere to and accumulate on the indoor blower fan 6 coated with polyaniline and water absorbing material. I will do it.

  When water comes into contact with polyaniline, electrons are supplied to dissolved oxygen in the water in contact with polyaniline to generate active oxygen (superoxide anion radical). The generated active oxygen comes into contact with the bacteria, and the bacteria are oxidized and removed. Therefore, when water adheres to the indoor air blowing fan 6 coated with polyaniline, active oxygen is generated, and the generated active oxygen comes into contact with dust attached and deposited on the indoor air blowing fan 6, and the dust grows as a nutrient source. Oxidative decomposition and removal of mold and fungi.

  The polyaniline that has supplied electrons to the dissolved oxygen in contact with water changes its structure to an oxidized structure that cannot generate active oxygen, but the negatively charged charged portion 4 is charged with negatively charged dust and water. Since it adheres on the surface of the indoor blower fan 6 that is applied and donates electrons to the polyaniline, the polyaniline can return to a structure capable of generating active oxygen into a reduced structure. Therefore, it becomes possible to continuously generate active oxygen.

  Thereafter, the air from which the bacteria have been decomposed and removed by the action of active oxygen passes through the indoor blower fan 6 and is then discharged from the discharge port 7 through the casing portion, and clean air sterilized is discharged into the room.

  As described above, according to the present embodiment, by providing the negatively charged portion in the previous stage of the polyaniline-coated substrate, the recovery of the active oxygen generation ability is maintained, and the operation is continuously performed while maintaining the bactericidal effect. An air conditioner that can be provided can be provided.

Embodiment 2. FIG.
In the first embodiment, in cases other than the cooling operation and the dehumidifying operation (when the air to be sucked is cold), moisture does not condense in the heat exchanger 2, so the humidity in the casing portion does not increase, and there is not much water in the surrounding air. Since it is not mixed, a large amount of active oxygen cannot be generated, but in Embodiment 2, an air conditioner that can increase the generation of active oxygen even in cases other than cooling operation and dehumidifying operation will be described.

  An air conditioner according to Embodiment 2 will be described with reference to FIG. FIG. 4 is a configuration diagram of an air-conditioning apparatus according to Embodiment 2 of the present invention. In the figure, components that are the same as or equivalent to those in the first embodiment are given the same reference numerals, and descriptions thereof are omitted. The second embodiment is different from the first embodiment in that the water storage section 12 in which water is stored is provided at a position where the high voltage electrode 9 of the negative charge charging section 4 is submerged.

  As shown in FIG. 4, the water storage unit 12 is provided so as to store water therein and to immerse a part of the high voltage electrode 9 of the negative charge charging unit 4 in the stored water. This stored water is generally water and is not particularly limited as long as oxygen is dissolved, but preferably does not contain ionic substances or impurities.

  In addition, the water storage unit 12 has a structure (not shown) that can be easily removed from the air conditioner, and is equipped with equipment (not shown) that can detect the amount of water in the water storage unit 12. The equipment that can detect the amount of water includes, for example, a memory that can check the amount of stored water from the outside, and a device that can check the amount of stored water by the pressure and weight that change according to the amount of water. Thereby, when the water in the water storage part 12 seems to run out, it is easy for a user to notice, and it can supply water to the water storage part 12 easily because it has a structure that can be removed.

  The high voltage electrode 9 is made of a foam metal made of titanium, stainless steel, copper, or the like, a conductive porous material, or a conductive material whose surface is processed to be uneven, and is stored in the water storage section 12. The water that is present can be sucked up to the tip of the high voltage electrode 9 by capillary action.

  When a high voltage of several kV is applied by the high voltage power source 11 of the negative charge charging unit 4, electrostatic force is applied to the surface of the high voltage electrode 9 that sucks up the water in the water storage unit 12 that has been submerged to the tip of the high voltage electrode 9. The water sucked up by the high-voltage electrode 9 becomes finer, atomized and released when the surface becomes unstable. At this time, the discharged water is charged with a negative charge.

Next, the operation will be described.
Air containing dust is sucked into the indoor unit 1 through the suction port 5 by the indoor blower fan 6, passes through the prefilter 3, passes through the heat exchanger 2, and flows to the negative charge charging unit 4. In the air containing dust, water sucked up from the water storage unit 12 is atomized and discharged, and negatively charged by the negative charge charging unit 4, and the negatively charged water and dust become polyaniline and water absorption. It adheres to and accumulates on the indoor fan 6 to which the material is applied.

  When water comes into contact with polyaniline, electrons are supplied to dissolved oxygen in the water in contact with polyaniline to generate active oxygen (superoxide anion radical). The generated active oxygen comes into contact with the bacteria, and the bacteria are oxidized and removed.

  At this time, a large amount of fine water released from the negative charge charging unit 4 adheres to the indoor fan 6 to which the polyaniline and the water absorbing material are applied, and the amount of active oxygen generated is increased. The increased active oxygen promotes the oxidative decomposition removal of the bacteria remaining in the dust attached to the indoor fan 6 to which the polyaniline and the water absorbing material are applied.

  The polyaniline that has supplied electrons to the dissolved oxygen in contact with water changes its structure to an oxidized structure that cannot generate active oxygen, but the negatively charged charged portion 4 is charged with negatively charged dust and water. Since it adheres on the surface of the indoor blower fan 6 that is applied and donates electrons to the polyaniline, the polyaniline can return to a structure capable of generating active oxygen into a reduced structure. Therefore, it becomes possible to continuously generate active oxygen.

  Thereafter, the air from which the bacteria have been decomposed and removed by the action of active oxygen passes through the indoor blower fan 6 and is then discharged from the discharge port 7 through the casing portion, and clean air sterilized is discharged into the room.

  As described above, according to the present embodiment, the generation amount of active oxygen can be increased regardless of the amount of moisture in the air by immersing the negative charge charging unit in the water storage unit. It is possible to provide an air conditioner that can continuously operate while maintaining the ability recovery and maintaining the sterilizing effect.

  In addition, by using this embodiment, even when the air conditioner is used for other than the cooling operation and the dehumidifying operation, the generation of active oxygen can be increased even in an air conditioner that does not include a heat exchanger. Therefore, it is not limited to the air conditioner that performs the cooling operation and the dehumidifying operation, and the operation can be continuously performed while maintaining the sterilizing effect.

  In the present embodiment, as a method for supplying the water in the water storage section 12 to the high voltage electrode 9, an example in which the high voltage electrode 9 is made of a foam metal, a porous material, or an uneven processing material, and water is sucked up by a capillary phenomenon. Although shown, it is not limited to this, The high voltage electrode 9 is made into the base material containing water-absorbing materials, such as a silica, a zeolite, and carbon, The method of attracting water and supplying to the front-end | tip of the high voltage electrode 9 is shown Alternatively, a method of installing a pump in the water storage unit 12, pumping up water in the water storage unit 12 by the pump, and supplying the water to the high voltage electrode 9 may be used.

Embodiment 3 FIG.
Next, an air conditioner according to Embodiment 3 will be described with reference to FIG. FIG. 5 is a configuration diagram of an air-conditioning apparatus according to Embodiment 3 of the present invention. In the figure, components that are the same as or equivalent to those of the second embodiment are given the same reference numerals, and descriptions thereof are omitted. The third embodiment is different from the second embodiment in that drain water condensed on the heat exchanger 2 is stored in the water storage section 12. A drain water receiving section 13 is provided at the lower part of the heat exchanger 2. Yes.

  As shown in FIG. 5, the drain water receiving portion 13 includes a receiving portion 13 a that receives drain water and a flow path portion 13 b that flows the received drain water to the water storage portion 12. When the air conditioner is performing a cooling operation, moisture in the air cooled by the heat exchanger 2 is condensed on the heat exchanger 2 when the air passes through the heat exchanger 2. The condensed moisture flows into the drain water receiving unit 13 and is collected by the water storage unit 12.

Next, the operation will be described.
Air containing dust is sucked into the indoor unit 1 through the suction port 5 by the indoor blower fan 6, passes through the prefilter 3, passes through the heat exchanger 2, and flows to the negative charge charging unit 4. When the air conditioner is performing a cooling operation, when air passes through the heat exchanger 2, moisture in the air cooled by the heat exchanger 2 is condensed on the heat exchanger 2, and the drain water receiver 13 It is collected in the flow and water storage section 12. The drain water stored in the water storage unit 12 is sucked up by the high voltage electrode 9 and atomized and released into the air.

  In the air containing dust flowing through the negative charge charging unit 4, the water sucked up from the water storage unit 12 is atomized and discharged, and charged by the negative charge charging unit 4 to be negatively charged. Dust adheres to and accumulates on the indoor blower fan 6 coated with polyaniline and a water-absorbing material.

  When water comes into contact with polyaniline, electrons are supplied to dissolved oxygen in the water in contact with polyaniline to generate active oxygen (superoxide anion radical). The generated active oxygen comes into contact with the bacteria, and the bacteria are oxidized and removed.

  At this time, a large amount of fine water released from the negative charge charging unit 4 adheres to the indoor fan 6 to which the polyaniline and the water absorbing material are applied, and the amount of active oxygen generated is increased. The increased active oxygen promotes the oxidative decomposition removal of the bacteria remaining in the indoor blower fan 6 to which the polyaniline and the water absorbing material are applied.

  The polyaniline that has lost electrons due to the generation of active oxygen cannot generate active oxygen, and changes its structure to an oxidized structure. However, dust and water charged from the negative charge charging unit 4 adhere to the surface and electrons to the polyaniline. As a result of the donation, the polyaniline can be returned to a reduced structure that can generate active oxygen. Therefore, it becomes possible to continuously generate active oxygen.

  The air from which the bacteria are decomposed and removed by the action of the active oxygen is discharged from the discharge port 7 through the casing part after passing through the indoor blower fan 6, and sterilized clean air is discharged into the room.

  As described above, according to the present embodiment, by providing the water storage unit 12 with the drain water receiving unit 13 that collects the drain water condensed on the heat exchanger 2, the labor of supplying water to the water storage unit 12 can be saved, Air conditioner that can be operated continuously while maintaining the bactericidal effect, since the water content exceeding the amount of water in the air can be supplied to the surface of polyaniline, so that the bactericidal effect can be further enhanced, the recovery of the ability to generate active oxygen can be sustained. Can be provided.

  Moreover, in this Embodiment, as a method of supplying the water in the water storage part 12 to the high voltage electrode 9, although the high voltage electrode 9 is made into foaming form and the example which sucks up water by a capillary phenomenon is shown, it is limited to this Instead, the high voltage electrode 9 is made a base material containing a water-absorbing material such as silica, zeolite, carbon, etc., and water is attracted and supplied to the tip of the high voltage electrode 9, A method may be employed in which the water in the water storage unit 12 is pumped up by a pump and supplied to the high voltage electrode 9.

  In Embodiments 1 to 3, a mixture of a water-absorbing material and polyaniline is applied to the indoor blower fan 6, but the present invention is not limited to this. Polyaniline and a water-absorbing material may be applied and contained directly on the wall surface, the discharge port 7, the flap 8, or the like. By doing so, it is possible to sterilize and remove molds and fungi that grow using dust attached to the casing wall surface, the discharge port 7 and the flap 8 as a nutrient source.

  In the first to third embodiments, the negative charge charging unit 4 is provided on the lee of the heat exchanger 2. However, the present invention is not limited to this, and the negative charge charging unit 4 may be the prefilter 3 or the heat exchanger 2. Mold that grows using the dust attached to the prefilter 3 and the heat exchanger 2 as a nutrient source by applying and containing polyaniline and a water-absorbing material on the surface of the prefilter 3 and the heat exchanger 2 And bacteria can be sterilized and removed.

  In addition, the base material described in a claim is the location where dust adheres inside air conditioners, such as the indoor air blower fan 6, the casing part, the discharge port 7, the flap 8, the prefilter 3, and the heat exchanger 2. It corresponds to.

Embodiment 4 FIG.
Next, an air conditioner according to Embodiment 4 will be described with reference to FIGS. FIG. 6 is a block diagram of the air conditioner according to the fourth embodiment, FIG. 7 is a block diagram of the negative charge charging unit 14 according to the fourth embodiment, and FIG. 8 is a dust collecting unit 15 according to the fourth embodiment. FIG. In the figure, components that are the same as or equivalent to those of the second embodiment are given the same reference numerals, and descriptions thereof are omitted.

  The fourth embodiment is different from the first embodiment in that a plurality of high voltage electrodes 9 and counter electrodes 10 are provided in the negative charge charging portion 14, and polyaniline is applied to the indoor fan 6 and the like without applying polyaniline. This is the point that a dust collecting part 15 provided with electrodes is provided.

  As shown in FIG. 8, the dust collector 15 applies a voltage to the plate-like electrodes 16 and every other plate-like electrode 16 arranged at regular intervals, and a high electric field is generated between the plate-like electrodes. The polyaniline is applied to the plate electrode 16a on the positive electrode side of the plate electrode 16 to which a voltage is applied. The plate electrode 16 to which no voltage is applied is the plate electrode 16b on the negative electrode side.

  The plate electrode 16 is conductive, and examples thereof include metal, aluminum, stainless steel, carbon, titanium, copper, silica, and zeolite. It is preferable that the polyaniline is uniformly applied to the surface of the plate electrode 16 with a film thickness of 0.5 μm or more. Thereby, even when the plate-like electrode 16 is a metal, it is not exposed to the surface, so there is no fear of oxidative corrosion due to an inflowing gas component or the like.

Next, the operation will be described.
Air containing dust is sucked into the indoor unit 1 through the suction port 5 by the indoor blower fan 6, passes through the prefilter 3, passes through the heat exchanger 2, and flows to the negative charge charging unit 14. When the air conditioning apparatus uses cooling operation, when air passes through the heat exchanger 2, moisture in the air cooled by the heat exchanger 2 is condensed on the heat exchanger 2 and the surrounding casing. Remains as water droplets.

  When water remains in the heat exchanger 2 and the casing, the relative humidity in the space increases, and a large amount of moisture is mixed in the air around the heat exchanger 2 and the air that has passed through the heat exchanger 2. The air containing dust and moisture passes through the negative charge charging unit 14 and is charged with a negative charge. The negatively charged dust and moisture-containing air flow to the dust collector 15 and receive an electric force by the action of an electric field formed around the plate-like electrode 16 of the dust collector 15 to be coated with polyaniline. It is adsorbed and collected on the surface of the plate-like electrode 16a on the positive electrode side.

  When moisture comes into contact with polyaniline, electrons are supplied to dissolved oxygen in the water that polyaniline contacts to generate active oxygen. The produced active oxygen comes into contact with the bacteria and oxidatively decomposes and removes the bacteria. Therefore, it is possible to oxidatively decompose and remove molds and fungi that grow on the nutrient source using the dust adhered and deposited on the plate electrode 16a on the positive electrode side.

  At this time, the polyaniline supplied with electrons changes in structure to an oxidized structure that cannot generate active oxygen, but dust or water charged to a negative charge from the negative charge charging unit 14 adheres to the surface of the polyaniline and donates electrons. Thus, the polyaniline can return to a reduced structure that can generate active oxygen. Therefore, it becomes possible to continuously generate active oxygen.

  The air from which the bacteria are decomposed and removed by the action of the active oxygen is discharged from the discharge port 7 through the casing part after passing through the indoor blower fan 6, and sterilized clean air is discharged into the room. Further, most of the negatively charged dust and water can be adsorbed and collected by the dust collecting unit 15 including the plate-like electrode 16a coated with polyaniline, so that active oxygen can be generated efficiently. In addition to being able to remove bacteria efficiently.

  As described above, according to the present embodiment, the dust charged with the negative charge by the negative charge charger 14 is collected by the dust collector 15 where a high electric field is generated by the action of the electric field. Providing an air conditioner that can more efficiently generate active oxygen and remove bacteria, maintain the recovery of active oxygen generation capacity, and maintain continuous bactericidal effects can do.

  In the present embodiment, the negative charge charging unit 14 has been described as an example having a plurality of high-voltage electrodes 9 and counter electrodes 10, but it is not always necessary to have a plurality of electrodes. The charge charging unit 4 may be used.

In the present embodiment, the plate-like electrode 16 is made of a conductive material. However, the plate-like electrode 16a on the positive electrode side to which polyaniline is applied may not be a conductive material, and in a state where polyaniline is applied. Is preferably 10 ⁰ to 10 ⁶ Ω / m ² . Moreover, in order to express the amount of active oxygen produced by polyaniline, the solid content of polyaniline is desirably 2 wt% or more.

  In the present embodiment, only the polyaniline is applied to the plate-like electrode 16a on the positive electrode side. However, the present invention is not limited to this. The polyaniline may be contained in the plate-like electrode so as to be exposed on the surface, or the water-absorbing material together with the polyaniline. May be applied. Since the water-absorbing material is applied together with polyaniline, moisture can be adsorbed actively to the substrate on which polyaniline is applied, and the substrate surface is hydrophilic so that the moisture spreads evenly and efficiency. Thus, active oxygen can be generated.

  Examples of the water-absorbing material include those composed of one or more of silica, zeolite, desiccite, allophine, and imogolite. The polyaniline and the water-absorbing material may be directly contained in the substrate as long as the polyaniline and the water-absorbing material are exposed on the surface.

  Also in the present embodiment, the negative charge charging unit 14 may be immersed in the water storage unit as in the second embodiment described above. By doing so, the production amount of active oxygen can be increased regardless of the moisture content in the air. Moreover, you may provide the drain water receiving part 13 which collect | recovers the drain water condensed on the heat exchanger 2 in the water storage part 12 like Embodiment 3 mentioned above. By doing so, it is possible to save the trouble of supplying water to the water storage unit 12 and to supply more water than the amount of water in the air to the polyaniline surface, so that the sterilizing effect can be further enhanced.

  In this Embodiment 1-4, although the example in the air conditioner provided with the heat exchanger is shown as an example of an air conditioning apparatus, it is not limited to this, humidification other than a dehumidifier, a refrigerator, or a freezer The same sterilizing effect is exhibited even in an air conditioner that is not equipped with a heat exchanger, such as an oven, an air cleaning device, or a ventilation fan.

  DESCRIPTION OF SYMBOLS 1 Indoor unit, 2 Heat exchanger, 3 Pre filter, 4 Negative charge charging part, 5 Suction inlet, 6 Indoor ventilation fan, 7 Outlet, 8 Flap, 9 High voltage electrode, 10 Counter electrode, 11 High voltage power supply, 12 water storage unit, 13 drain water receiving unit, 14 negative charge charging unit, 15 dust collecting unit, 16 plate electrode, 16a plate electrode (positive electrode side), 16b plate electrode (negative electrode side), 17 high voltage power supply

Claims (7)

A negative charge charging section that charges dust or moisture in the air with a negative charge;
A substrate coated with or containing polyaniline;
A blowing means for generating a flow of air so that air flows from the negative charge charging portion to the substrate;
With
The polyaniline is an air conditioner in which electrons are supplied from dust or moisture that is negatively charged by the negative charge charging unit. The negative charge charging portion is
A high voltage electrode;
A counter electrode facing the high voltage electrode;
A power source for applying a voltage for generating a discharge between the high voltage electrode and the counter electrode;
The air conditioning apparatus according to claim 1, comprising: The negative charge charging portion is provided on the windward side of the air blowing means,
The air conditioner according to claim 1 or 2, wherein the base material is provided in the blowing means. A heat exchanger,
With
The air conditioner according to any one of claims 1 to 3, wherein the blowing unit generates an air flow so that air sequentially flows from the heat exchanger to the negative charge charging unit and the base material. . A water storage section for storing water, and a portion of the high voltage electrode is submerged;
With
The air conditioning apparatus according to claim 2, wherein the high voltage electrode sucks up water in the water storage section by capillary action and vaporizes and discharges the sucked up water when a voltage is applied by the power source. A water storage section for storing water, and a portion of the high voltage electrode is submerged;
With
3. The air according to claim 2, wherein the high voltage electrode attracts water in the water storage unit by an electrode base material containing a water absorbing material, and vaporizes and discharges the attracted water when a voltage is applied by the power source. Harmony device. A water reservoir for storing water;
A pump that pumps water from the reservoir and supplies it to the high-voltage electrode;
With
The air conditioner according to claim 2, wherein the high voltage electrode vaporizes and discharges water supplied by the pump when a voltage is applied by the power source.

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