JP2005138034A - Air cleaning apparatus and air conditioning machine fitted with air cleaning apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air cleaning apparatus that is capable of decomposing a harmful gas in air to enhance deodorant properties, decomposing a harmful gas adsorbed by a deodorizing filter to gain the extended efficacy of a deodorant efficacy lasting period, and efficiently capturing the harmful gas at a dust collection part by forming a plasma state in a charging part to produce radicals rich in reactivities. <P>SOLUTION: The air cleaning apparatus is provided with the charging part and the dust collection part wherein indoor suspended dust is charged in the charging part and the charged suspended dust in the charging part is collected in the dust collection part. The charging part is comprised of a flat electrode that is dropped into GND and a discharge electrode that applies high positive or negative voltage to the flat electrode. The air cleaning apparatus is also provided with a deodorizing filter having an adsorption face of an odor at the face along with the air flow in the downstream of the air flow from the charging part. The dust collection part arranges a semi-insulation resin to apply high positive or negative voltage to the downstream of the deodorizing filter and a conductive resin that is dropped into GND alternately. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an air purifier and an air conditioner equipped with the air purifier.

  The conventional air purifying apparatus has a configuration in which a charging part, a deodorizing filter, an electric dust collecting part including a collector electrode, and a deodorizing part filter are made of activated carbon from the flow direction of air to be cleaned (for example, see Patent Document 1).

  In addition, a conventional air cleaning device is composed of a flat plate electrode and a discharge electrode that applies a positive or minor high voltage to the flat plate electrode, and a charging unit provided on the upstream side of the heat exchanger of the air flow. And a collecting filter having a dust and odor adsorbing surface on a surface along the air flow on the downstream side of the air flow in the charging unit. (For example, refer to Patent Document 2).

  In addition, there is a two-stage electrostatic precipitator in which a charging unit is provided upstream and a dust collecting unit is provided downstream of the previous charging unit (see, for example, Non-Patent Document 1).

JP-A-9-131548 (page 3, FIG. 3) JP 2003-066553 A (page 4, FIG. 1) The Electrostatic Society "Static Handbook" Ohmsha, May 30, 1981, 1st edition, first edition, p. 473-555

In the case of an air purifier equipped with a conventional charged part upstream and a deodorizing filter downstream thereof, the odorous component adsorbed on the deodorizing filter creates a plasma state from the charged part, thereby generating radicals rich in reactivity. Decomposes harmful gases, improves deodorization performance, and extends the deodorization effect period of the collection filter. In this configuration, although the dust is collected at the charging portion, the collection efficiency for collecting the floating dust is poor, and as a result, there is a problem that a separate air cleaning filter is provided and the cost is increased.

Moreover, in the case of using a dust collection filter instead of a deodorizing filter as the collection filter, or in a two-stage electric dust collector having a charging part and a dust collection part, the dust collection efficiency for collecting indoor floating dust is improved. However, there is a problem that the ability to remove harmful gases in the room is lost.

  The present invention has been made in order to solve the above-mentioned problems. The first object is to create a plasma state from the charged portion and generate radicals rich in reactivity, thereby removing harmful gases in the air. It improves the deodorizing performance by decomposing and decomposing harmful gas adsorbed on the deodorizing filter, has an effect of extending the deodorizing effect period, and obtains an air cleaning device that can efficiently collect in the dust collecting part. .

  A second object is to obtain an air cleaning device that can maintain a non-combustible state even when dust accumulates between the discharge electrode and the flat plate electrode of the charging portion and spark discharge occurs.

  The third object is to suppress discharge between the discharge electrode other than the discharge electrode and the flat plate electrode, the deodorizing filter, the dust collector, or the heat exchanger, and is necessary for generating plasma and charging floating dust. It is possible to prevent the above current from flowing, and to obtain a downsized and thin air cleaning device.

  The fourth purpose is to collect harmful gases in the room and decompose the harmful gases with reactive radicals generated from the charged part provided upstream of the air flow to maintain the performance of the deodorizing filter. An air purifier that can be used is obtained.

  The fifth object is to decompose harmful gases generated by charged radicals provided upstream of the air flow, and to further decompose harmful gases by the catalytic action of the filter. In addition, it is possible to obtain an air cleaning device that can further extend the life of the deodorizing filter performance.

  A sixth object is to make the resin surface in a GND state and a high potential state, generate an electrostatic field between the resins and efficiently collect charged particles, and use a semi-insulating resin on the high voltage side to reduce the distance between the resins. It is possible to obtain a dust collection portion of an air cleaning device that can be molded into a safe and complicated shape that does not cause discharge between resins even when it is narrowed.

  A seventh object is to obtain an air cleaning device that can minimize the variation in assembly of the distance between the discharge electrode and the flat plate electrode and can facilitate the assembly.

  The eighth object is to obtain a low-cost air purifier with a small number of components.

  A ninth object is to obtain an air conditioner with an air purifier that can remove airborne dust and harmful gases and create a comfortable living space.

  In addition to the outdoor exhaust function of carbon dioxide and carbon monoxide that cannot be removed by indoor temperature / humidity adjustment and deodorizing filters, the tenth purpose is to remove suspended dust and harmful gases, and to provide a more comfortable living space. An air conditioner with an air cleaning device to be produced is obtained.

  The eleventh object is to remove harmful gases such as NOx that oxidize skin cells with the air purifier of the present invention, and to release antioxidants such as rosemary, and the released antioxidants are skin cells. It is possible to obtain an air conditioner equipped with an air purifier that can prevent skin oxidation by contacting the surface.

  The air cleaning device according to the present invention is provided with a charging unit and a dust collecting unit, and the charging unit charges the airborne dust in the room, and the air purifier includes a dust collecting unit that collects the floating dust charged by the charging unit. In the apparatus, the charging unit is composed of a flat plate electrode dropped on GND and a discharge electrode for applying a positive or negative high voltage to the flat plate electrode, on the surface along the air flow downstream of the air flow in the charging unit. Provided with a deodorizing filter having an odor adsorbing surface, and provided with a dust collecting part in which a semi-insulating resin for applying plus or minus and a conductive resin dropped to GND are alternately arranged on the downstream side of the air flow of the deodorizing filter It is.

  The air conditioner with an air purifier according to the present invention is an air conditioner that adjusts the temperature and humidity in a room by heating or cooling the air sucked from the room with a heat exchanger and adjusting the temperature and humidity in the room. A surface along the air flow on the downstream side of the air flow in the charging unit with respect to the charging unit that is formed of a discharge electrode that applies a positive or negative high voltage to the flat plate electrode and that is provided on the upstream side of the heat exchanger Are provided with a deodorizing filter having a dust and odor adsorbing surface, and the plus or minus air purifier is provided upstream of the heat exchanger of the air conditioner indoor unit on the downstream side of the air flow in the deodorizing filter.

  The air cleaning device according to the present invention includes a charged portion comprising a flat plate electrode dropped on GND, a discharge electrode for applying a positive or negative high voltage to the flat plate electrode, and an air flow downstream of the air flow of the charged portion. A deodorizing filter having an odor adsorbing surface along the surface, and a semi-insulating resin for applying plus or minus and a conductive resin dropped to GND are alternately arranged on the downstream side of the air flow of the deodorizing filter. By creating a plasma state by corona discharge between the electrodes of the charged part and generating radicals rich in reactivity, the harmful gases in the air are decomposed to improve the deodorizing performance and the harmful substances adsorbed on the deodorizing filter Particles that decompose gas and have an effect of extending the deodorizing effect period of the deodorizing filter and that are charged by the electrostatic field generated in the semi-insulating resin and conductive resin of the dust collecting part are high. Rebounded in semi-insulating resin side of applying the pressure has the effect of efficiently airborne dust is attracted to a conductive resin dropped to the GND can be dust collecting conductive resin.

  The air conditioner with an air purifier according to the present invention is an air conditioner that adjusts the temperature and humidity in a room by heating or cooling the air sucked from the room with a heat exchanger and adjusting the temperature and humidity in the room. A surface along the air flow on the downstream side of the air flow in the charging unit with respect to the charging unit that is formed of a discharge electrode that applies a positive or negative high voltage to the flat plate electrode and that is provided on the upstream side of the heat exchanger Is provided with a deodorizing filter having a dust and odor adsorbing surface, and the positive or negative air purifier is provided upstream of the heat exchanger of the air conditioner indoor unit on the downstream side of the air flow in the deodorizing filter. In addition to the basic functions of an air conditioner that cools and blows out indoors and adjusts the indoor temperature and humidity, it is possible to remove indoor dust and harmful gases and create a comfortable indoor space. Having.

Embodiment 1 FIG.
FIG. 1 is a cross-sectional view of an air purifying apparatus according to Embodiment 1 of the present invention, FIG. 2 is an enlarged cross-sectional view of the main part of the air purifying apparatus according to Embodiment 1 of the present invention, and FIG. 4 is an exploded perspective view of the air cleaning device, FIG. 4 is a perspective view of a state in which the discharge electrode portion is incorporated in the front outer frame, FIG. 5 is a perspective view of the discharge electrode portion, and FIG. It is a perspective view of a state. In the figure, the air cleaning device 1 has a front outer frame 10 and a rear outer frame 11, and a flat plate electrode 2 formed by punching a sheet metal dropped on a ground (hereinafter referred to as GND) and a positive or minor in parallel with the flat plate electrode 2. A non-combustible member having a charging portion 4 formed of a discharge electrode 3 formed by punching a sheet metal to apply a high voltage, and an odor adsorbing surface on a surface along the air flow on the downstream side of the air flow of the charging portion 4 A deodorizing filter 5 having a surface resistance value of 10 ³ MΩ or more, a conductive resin 7 having a surface resistance value of 10 ⁶ Ω or less dropped to GND on the downstream side of the air flow of the deodorizing filter 5, and a positive or negative high value The semi-insulating resin 6 having a surface resistance value of about 10 ¹⁰ to 10 ¹³ Ω to which a voltage is applied is alternately arranged, the charged part 4 charges indoor floating dust, and the charged part 4 collects the suspended dust. Collection It is composed of part 8.

  As shown in FIGS. 4 and 6, the discharge electrode portion 10 a or the flat plate electrode portion 11 a is formed integrally with the front outer frame 10 or the rear outer frame 11 of the air cleaning device 1.

  Next, the operation will be described. In the air cleaning device 1 configured as described above, a plasma state is generated by corona discharge between the flat plate electrode 2 and the discharge electrode 3 of the charging unit 4 to generate radicals rich in reactivity. The harmful gas adsorbed to the deodorizing filter 5 is decomposed to extend the deodorizing effect period of the deodorizing filter 5, and the conductive resin 6 of the dust collecting portion 8 and the semi-conductive gas 6 are improved. Particles charged by the electrostatic field generated in the insulating resin 7 are repelled on the side of the semi-insulating resin 6 to which a high voltage is applied, and are attracted to the conductive resin 7 dropped on the GND to efficiently collect floating dust on the conductive resin 7. be able to.

  In addition, when dust is accumulated between the flat plate electrode 2 and the discharge electrode 3 of the charging unit 4 and spark discharge occurs in an abnormal mode due to deformation of the electrode, the deodorizing filter 5 is made of a non-combustible member such as ceramic. Generation | occurrence | production of the combustion of the apparatus which takes in this air cleaning apparatus 1 can be suppressed.

Further, by setting the surface resistance value of the deodorizing filter 5 made of a non-combustible member to 10 ³ MΩ or more, the deodorizing filter 5 from the discharge electrode 3 is not discharged between the flat plate electrode 2 and the discharge electrode 3 and the dust collecting portion 8 Since the discharge to the conductive resin 6 can be suppressed, the air cleaning device 1 can be reduced in thickness, and more than the current necessary for generating plasma in the charging unit 4 and charging floating dust is passed. Since only a small amount of current flows, the power for burning the accumulated dust can be reduced, and the high voltage generating substrate can be miniaturized.

  Further, by using the deodorizing filter 5 made of the non-combustible member containing at least one of inexpensive activated carbon, zeolite, and a deodorizing additive, the indoor harmful gas is collected, and the air flow The deodorizing filter 5 can be maintained at a high performance by decomposing harmful gases with radicals rich in reactivity generated from the charging unit 4 provided upstream of the deodorizing filter 5.

  Further, the deodorizing filter 5 made of the non-combustible member uses a catalyst for decomposing collected odor components such as an expensive photocatalyst such as titanium oxide or a metal ion catalyst such as manganese oxide. In addition to the decomposition of harmful gases by radicals rich in reactivity, the catalytic action of the deodorizing filter 5 can further decompose harmful gases, maintaining the performance of the deodorizing filter 5 with high performance and extending the life. Can be made.

Further, in the dust collecting portion 8, the conductive resin 7 whose surface resistance value dropped to GND is 10 ⁶ Ω or less and the semi-insulation whose surface resistance value for applying a positive or negative high voltage is about 10 ¹⁰ to 10 ¹³ Ω. By using the resin 6, the resin surface is brought into a GND state and a high potential state, an electrostatic field is generated between the resins to efficiently collect charged particles, and the distance between the resins is obtained by using the semi-insulating resin 6 on the high voltage side. Since the discharge between the resins does not occur even when the width is narrowed, it can be molded into a safe and complex shape.

  In the charging unit 4, at least one of the flat plate electrode 2 dropped to GND or the discharge electrode 3 to which a positive or negative high voltage is applied is used as a front outer frame 10 and a rear outer frame 11 constituting an air purifier. By forming the discharge electrode portion 10a and the flat plate electrode portion 11a by in-mold molding, it is possible to minimize the assembly variation in the distance between the electrodes and facilitate the assembly of the air cleaning device.

  In addition, the flat plate electrode 2 formed by punching the sheet metal of the charging unit 9 cuts the sheet metal so that one end face of the discharge electrode 3 and the resin of the dust collecting unit 20 are in contact with each other, thereby reducing the number of components. An inexpensive air cleaning device can be obtained.

Embodiment 2. FIG.
The first embodiment described above relates to the air purifying apparatus of the present invention. Next, a second embodiment in which the air purifying apparatus is incorporated as an air performance function of an air conditioner will be described. FIG. 8 is a sectional view showing an air conditioner with an air purifier according to the present invention, and FIG. 9 is a front view showing the air conditioner indoor unit with the front panel and the prefilter removed. In the figure, the air conditioner body 12 is provided with a front panel 14 and an upper panel 15 each having an air suction port 13 and an air outlet 16, and a heat exchanger 17 and a blower 18 are incorporated therein. A prefilter 19 is disposed between the heat exchanger 17 and the front panel 14 and the top panel 15. In the air conditioner 12, the air purifier 1 and the antioxidant release mechanism 20 are arranged side by side on the front surface of the heat exchanger 17.

  As described above, since the air purifying apparatus 1 of the present invention is arranged in the air conditioner indoor unit 12, the air sucked from the room is passed through the heat exchanger 17 before the air purifying of the present invention. By providing the apparatus 1, in addition to the basic function of the air conditioner 12 that heats or cools with the air conditioner 12 and blows out into the room and adjusts the temperature and humidity in the room, the air purifier 1 removes dust and harmful gases in the room. Can have.

  The air conditioner of FIG. 10 is a perspective view of the air conditioner indoor unit with the front panel removed. A ventilation device 21 that is disposed between the heat exchangers 17 of the air conditioner indoor unit 12 and that extends from the front surface of the heat exchanger 17 and that has an air suction port 21b having a small filter 21a at the inlet is disposed.

  FIG. 11 is a configuration diagram showing an air conditioner and an outdoor unit incorporating an air purifying device according to another embodiment of the present invention. In the figure, an air conditioner 12 installed on a wall surface 22 includes an air purifier 1, a heat exchanger 17, and a blower 18. The air conditioner 12 is connected to the air conditioner 12 through a refrigerant pipe 23, and is disposed outside the room. An air conditioner outdoor unit 24 is provided, and a ventilator 21 is disposed in the outdoor unit 24, and communicates with an air exhaust pipe 25 in which an air suction port (not shown) is disposed on the air conditioner 12 side. Configured.

  Therefore, carbon dioxide and carbon monoxide that cannot be removed by the air purifier 1 by disposing a ventilator that exhausts indoor air in the indoor unit or the outdoor unit of the air conditioner with the air purifier of the present invention. It is possible to obtain an air conditioner with an air cleaning device that can discharge gas and generate a comfortable living space.

  Further, by placing the air cleaning device 1 of the present invention in an air conditioner provided with a mechanism 20 for releasing an antioxidant such as rosemary in the room, the air cleaning device 1 oxidizes skin cells and the like harmful Further, by releasing the antioxidant substance into the room while removing the gas, the released antioxidant comes into contact with the skin cells and can further prevent the skin cells from being oxidized.

FIG. 4 is a perspective view of the discharge electrode portion, and FIG. 6 is a perspective view of the assembled state. It is a principal part expanded sectional view which shows the air purifying apparatus in Embodiment 1 of this invention. It is a disassembled perspective view of the air purifying apparatus in Embodiment 1 of this invention. It is a perspective view which shows the perspective view of the state which incorporated the discharge electrode part of the air purifying apparatus in Embodiment 1 of this invention in the front outer frame. It is a perspective view which shows the discharge electrode part of the air purifying apparatus in Embodiment 1 of this invention. It is a perspective view which shows the state which incorporated the flat-plate electrode part of the air purifying apparatus in Embodiment 1 of this invention in the back outer frame. It is a perspective view which shows the flat electrode part of the air purifying apparatus in Embodiment 1 of this invention. It is sectional drawing which shows the air conditioner incorporating the air purifying apparatus in Embodiment 2 of this invention. It is a front view which shows the state which removed the front panel of the air conditioner incorporating the air purifying apparatus in Embodiment 2 of this invention. It is a perspective view which shows the state which removed the front panel of the air conditioner incorporating the air purifying apparatus in other embodiment of this invention. It is a block diagram which shows the air conditioner and outdoor unit which incorporated the air purifying apparatus in other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air purifier 2 Flat plate electrode 3 Discharge electrode 4 Charging part 5 Deodorizing filter 6 Semi-insulating resin 7 Conductive resin 8 Dust collection part 10 Outer outer frame 11 Rear outer frame 12 Air conditioner 13 Air inlet 16 Air outlet 17 Heat exchange Ventilator 18 Blower 20 Anti-acid substance release mechanism 21 Ventilator 24 Outdoor unit.

Claims (11)

In an electric air cleaning device that is equipped with a charging unit and a dust collecting unit, and that charges the indoor floating dust in the charging unit and collects the floating dust charged in the charging unit, the charging unit drops to GND A deodorizing filter having a odor adsorbing surface on a surface along the air flow on the downstream side of the air flow in the charging unit. And an air cleaning device provided with a dust collecting portion in which a semi-insulating resin for applying plus or minus and a conductive resin dropped on GND are alternately arranged on the downstream side of the air flow of the deodorizing filter. In an electric air cleaning device that is equipped with a charging unit and a dust collecting unit, and that charges the indoor floating dust in the charging unit and collects the floating dust charged in the charging unit, the charging unit drops to GND A deodorizing filter having a odor adsorbing surface on a surface along the air flow on the downstream side of the air flow in the charging unit. A dedusting filter is provided on the downstream side of the air flow of the deodorizing filter, a semi-insulating resin for applying plus or minus and a conductive resin dropped on GND are provided alternately, and the deodorizing filter is made of a non-flammable member An air purifier characterized by that. In an electric air cleaning device that is equipped with a charging unit and a dust collecting unit, and that charges the indoor floating dust in the charging unit and collects the floating dust charged in the charging unit, the charging unit drops to GND A deodorizing filter having a odor adsorbing surface on a surface along the air flow on the downstream side of the air flow in the charging unit. The air purifier according to claim 1, wherein the deodorizing filter has a surface resistance value of 10 ³ MΩ or more. In an electric air cleaning device that is equipped with a charging unit and a dust collecting unit, and that charges the indoor floating dust in the charging unit and collects the floating dust charged in the charging unit, the charging unit drops to GND A deodorizing filter having a odor adsorbing surface on the surface along the air flow on the downstream side of the air flow of the charging unit. The air cleaning device according to claim 1, wherein the collection filter contains at least one of activated carbon, zeolite, and an additive having a deodorizing action. A flat plate electrode dropped in GND in an electric air cleaning apparatus comprising a dust collecting unit that is provided with a charging unit and a dust collecting unit, charges floating dust in the room by the charging unit, and collects floating dust charged by the charging unit. And a discharge electrode for applying a positive or negative high voltage to the flat plate electrode, and generating plasma by corona discharge in the charging portion, and on the surface along the air flow downstream of the air flow in the charging portion. The air purifier according to claim 1, further comprising a deodorizing filter having an odor adsorbing surface, wherein the collection filter includes a photocatalyst such as titanium oxide and a catalyst such as a metal ion catalyst such as manganese oxide. A flat plate electrode dropped in GND in an electric air cleaning apparatus comprising a dust collecting unit that is provided with a charging unit and a dust collecting unit, charges floating dust in the room by the charging unit, and collects floating dust charged by the charging unit. And a deodorizing filter having a charging portion comprising a discharge electrode for applying a positive or negative high voltage to the flat plate electrode, and having an odor adsorbing surface on a surface along the air flow on the downstream side of the air flow in the charging portion the provided, on the downstream side of the air flow of the deodorizing filter, a semi-insulating surface resistance surface resistance value dropped to the GND is applied to conductive resin and plus or minus less 10 ⁶ Omega is about ¹⁰ 10 ~10 ¹³ Ω The air cleaning apparatus according to claim 1, further comprising a dust collection unit in which resins are alternately arranged. A flat plate electrode dropped in GND in an electric air cleaning apparatus comprising a dust collecting unit that is provided with a charging unit and a dust collecting unit, charges floating dust in the room by the charging unit, and collects floating dust charged by the charging unit. And a charging portion that is provided on the upstream side of the heat exchanger in the air flow and charges at least one of the plate electrode and the discharge electrode. An air purifier characterized by being molded integrally with a frame resin that constitutes the part. A flat plate electrode dropped in GND in an electric air cleaning apparatus comprising a dust collecting unit that is provided with a charging unit and a dust collecting unit, charges floating dust in the room by the charging unit, and collects floating dust charged by the charging unit. And a charging part provided on the upstream side of the heat exchanger of the air flow with respect to the flat electrode and a discharge electrode for applying a positive or negative high-voltage power supply, and air on the downstream side of the air flow in the charging part. Dust collection comprising a deodorizing filter having an odor adsorbing surface on the surface along the flow, and a semi-insulating resin for applying plus or minus on the downstream side of the air flow in the deodorizing filter and a conductive resin dropped to GND In the air purifier provided with a portion, the flat electrode, the conductive resin of the dust collecting portion, the discharge electrode for applying a positive or negative high voltage power source and the semi-insulating resin are in contact with each other. Air cleaning device according to claim 7. In an air conditioner that heats or cools the air sucked from the room with a heat exchanger and blows it into the room to adjust the temperature and humidity in the room, and applies a positive or minor high voltage to the plate electrode dropped to GND and this plate electrode A deodorizing filter having a dust and odor adsorbing surface on a surface along the air flow on the downstream side of the air flow in the charging unit, with respect to the charging unit provided on the upstream side of the heat exchanger. An air conditioner with an air purifier, wherein a dust collecting unit is provided on the downstream side of the air flow in the deodorizing filter, in which a conductive resin for applying plus or minus and a conductive resin dropped on GND are alternately arranged. In an air conditioner that heats or cools inhaled air with a heat exchanger and blows it out into the room to adjust the temperature and humidity in the room, a flat plate electrode dropped on GND and a positive or minor high voltage with respect to this flat plate electrode A deodorizing filter having a dust and odor adsorbing surface on a surface along the air flow on the downstream side of the air flow in the charging unit with respect to the charging unit made of an applied discharge electrode and provided on the upstream side of the heat exchanger. The air conditioner with an air purifier according to claim 9, wherein the air conditioner is provided with a ventilation device for exhausting indoor air. In an air conditioner that heats or cools inhaled air with a heat exchanger and blows it into the room to adjust the temperature and humidity in the room, a flat plate electrode dropped on GND and a positive or negative high voltage with respect to this flat plate electrode A deodorizing filter having a dust and odor adsorbing surface on a surface along the air flow on the downstream side of the air flow in the charging unit with respect to the charging unit made of an applied discharge electrode and provided on the upstream side of the heat exchanger. The air conditioner with an air purifier according to claim 9, wherein the air conditioner is provided with a mechanism for releasing an antioxidant substance into the room.

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