WO2010119733A1 - イオン発生装置及び空気清浄装置 - Google Patents
イオン発生装置及び空気清浄装置 Download PDFInfo
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- WO2010119733A1 WO2010119733A1 PCT/JP2010/053295 JP2010053295W WO2010119733A1 WO 2010119733 A1 WO2010119733 A1 WO 2010119733A1 JP 2010053295 W JP2010053295 W JP 2010053295W WO 2010119733 A1 WO2010119733 A1 WO 2010119733A1
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- ion
- ions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/22—Ionisation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/14—Filtering means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Definitions
- the present invention relates to an ion generator and an air purifier for discharging ions generated by an ion generator together with air sucked by a blower into a room and cleaning the room air.
- the air in the living room is contaminated with various substances such as mite dust, pollen and other allergens, floating fungi, viruses and off-flavors.
- various substances such as mite dust, pollen and other allergens, floating fungi, viruses and off-flavors.
- the density of houses has increased, and pollutants tend to stay indoors. Therefore, it is necessary to actively ventilate the house.
- the air purifier includes a blower housed in a housing having a suction port on a rear surface and a discharge port on an upper portion, a filter that allows the air sucked from the suction port to pass through the blower, and an ion generator that generates ions. A part. Then, the ions generated by the ion generation unit are discharged into the room from the discharge port together with the air sucked by the blower. Ions decompose indoor pollutants and clean indoor air (see, for example, Patent Document 1).
- the ion generator has a positive electrode and a negative electrode that are spaced apart from each other. By applying a potential between the positive electrode and the negative electrode, positive ions are released from the positive electrode, and negative ions are released from the negative electrode. The released positive ions and negative ions are included in the air sucked by the blower, and are discharged into the room from the discharge port together with the air.
- the amount of ions generated by the ion generator and the amount of ions in the room released from the discharge port together with air were measured. It was found that the amount of ions in the room was relatively small compared to the amount of ions generated by the ion generator.
- An object of the present invention is to arrange an ion generation unit in a laminar flow part where the flow of air sucked by a blower becomes a laminar flow, so that ions generated by the ion generation part are efficiently converted into air sucked by the blower. It is possible to reduce the difference between the amount of ions generated by the ion generator and the amount of ions in the room, and to increase the amount of ions in the room. is there.
- An ion generator includes a housing having a suction port and a discharge port, a blower accommodated in the housing, a filter through which air sucked from the suction port by the blower, and an ion that generates ions.
- An air purifier that discharges the ions generated by the ion generator together with the air sucked by the blower from the discharge port, wherein the ion generator has a laminar flow of the air. It is arranged in the laminar flow part which becomes.
- the ions generated by the ion generating part can be included in the air in a laminar flow part in which the air flow becomes a laminar flow. Therefore, the ions generated by the ion generator can be efficiently contained in the air. In addition, the amount of ions contained in the air can be increased, and the amount of ions released into the room can be increased. Therefore, the cleaning of indoor air can be further enhanced.
- the blower includes an impeller, and includes an air conditioning body that regulates an airflow generated by the rotation of the impeller, and the ion generating unit is disposed on the air conditioning body.
- ions can be efficiently included in the air that is conditioned by the air conditioning body and flows through the laminar flow, so that the amount of ions discharged from the discharge port together with the air can be further increased. it can.
- the ion generator which concerns on this invention is a casing in which the said air conditioning body accommodates the said impeller.
- ions can be included in laminar air flowing through a relatively narrow passage in the casing. Therefore, the ions generated by the ion generation unit can be efficiently contained in the air, and the amount of ions released from the discharge port together with the air can be further increased.
- the blower includes an impeller and a casing that accommodates the impeller, and is arranged between the casing and the discharge port, and the air is supplied to the discharge port. It has a flow path for flow, and the ion generation part is arranged in the flow path and the casing.
- ions can be included in the laminar air flowing through a relatively narrow passage in the casing.
- produced can be included in the air which blown off from the blower outlet of the casing to the flow path. Therefore, the ions generated by the ion generator can be more efficiently contained in the air, and the amount of ions released from the discharge port together with the air can be further increased.
- the casing has an arc-shaped guide surface for guiding an air flow generated by the rotation of the impeller, and a tangent line of the arc-shaped guide surface from a part of the arc-shaped guide surface.
- a blower outlet opened in one direction is provided, and the ion generating part is arranged on the arc-shaped guide surface.
- ions can be included in the laminar air flowing at a high wind speed through a relatively narrow passage in the casing. Therefore, the ions generated by the ion generator can be more efficiently contained in the air, and the amount of ions released from the discharge port together with the air can be further increased.
- a plurality of the ion generators are arranged apart from each other in a direction intersecting a flow direction through which the air flows.
- a plurality of the ion generators are arranged at positions that are separated in the flow direction and relatively biased in a direction intersecting the flow direction.
- the existing casing can increase the number of locations where ions are included in the laminar air in a relatively narrow passage in the casing. Therefore, the ions generated by the ion generator can be more efficiently contained in the air, and the amount of ions released from the discharge port together with the air can be further increased.
- each of the ion generators is arranged so as not to overlap in the flow direction.
- the ions generated by each of the ion generators can be included in the laminar air without being canceled. Ions can be more efficiently contained in the air, and the amount of ions discharged from the discharge port together with the air can be further increased.
- the ion generator according to the present invention has a holding body that holds each of the ion generating portions, the holding body is curved in the flow direction, and a portion corresponding to each of the ion generating portions is opened.
- Each of the ion generating portions is disposed in the opening of the curved surface.
- the curved surface of the holding body can be brought into contact with the arcuate guide surface that guides the airflow generated by the rotation of the impeller of the casing. Therefore, a plurality of ion generation parts can be made into the same shape, and the ion generation amount of each ion generation part can be made equal.
- the air purifying apparatus which concerns on this invention is provided with the ion generator as described above, It is characterized by the above-mentioned.
- the ions generated by the ion generator can be included in the air in a laminar flow part in which the air flow becomes a laminar flow. Therefore, the ions generated by the ion generator can be efficiently contained in the air.
- the amount of ions contained in the air can be increased, the amount of ions released into the room can be increased, and the cleaning of indoor air can be further enhanced.
- the ions generated by the ion generation unit can be included in the air in the laminar flow unit where the air flow becomes a laminar flow, the ions generated by the ion generation unit can be efficiently contained in the air.
- the amount of ions contained in the air can be increased. Therefore, the amount of ions released into the room can be increased.
- FIG. 1 is a longitudinal side view showing an air cleaning device
- FIG. 2 is a front view showing a main part
- FIG. 3 is a side view showing the main part.
- FIG. 4A is a front view of an ion generator of the air cleaning device.
- FIG. 4B is a side view of the ion generator of the air cleaning device.
- the air purifying apparatus shown in FIG. 1 includes a housing 1 having a suction port 11 in a rear wall 1a and a discharge port 12 in a top wall 1b, and a blower 2 disposed in a lower portion of the housing 1. .
- the air purifier is disposed inside the suction port 11, and allows the air that the blower 2 sucks from the suction port 11 to pass therethrough, removes foreign matters in the air, and produces clean air, the blower 2, and the release air.
- a duct 4 that is disposed between the outlets 12 and that allows the air to flow to the discharge port 12.
- the air cleaning device includes two ion generators 51 and 52 and includes an ion generator 5 that includes positive ions and negative ions in the air blown by the blower 2.
- This air purifier includes positive ions and negative ions generated by the ion generators 51 and 52 in the air blown by the blower 2.
- the air purifier discharges positive ions and negative ions from the discharge port 12 together with air.
- the housing 1 has a bottom wall 1c having a rectangular shape in plan view, a front wall 1d continuous with two sides of the bottom wall 1c, a side wall continuous with the other two sides of the rear wall 1a and the bottom wall 1c, and a top wall 1b. Form a rectangular parallelepiped.
- the rear wall 1a is provided with a rectangular suction port 11 whose longitudinal direction is up and down.
- the ceiling wall 1b is provided with a rectangular discharge port 12 whose longitudinal direction is on both side walls.
- the blower 2 has a cylindrical shape.
- the blower 2 is of a centrifugal type having an impeller 21 that is arranged so that the rotation axis is front and rear, and a casing 22 that rotatably accommodates the impeller 21.
- a motor 6 that drives the impeller 21 is attached to the front side of the casing 22.
- the impeller 21 is a multi-blade impeller having a plurality of blades 21a whose rotation center side is displaced in the rotation direction with respect to the outer edge, in other words, a sirocco impeller having a cylindrical shape.
- One end of the impeller 21 has a bearing plate.
- the output shaft of the motor 6 is attached to a shaft hole opened at the center of the bearing plate. Air sucked into the central cavity from the opening at the other end of the impeller 21 is discharged from between the blades 21a on the outer peripheral portion.
- the casing 22 induces an air flow generated by the rotation of the impeller 21 in the rotation direction of the impeller 21 to form a laminar flow.
- the casing 22 includes an arc-shaped guide wall 22a for increasing the speed of the airflow, and an air outlet 22b opened upward from a part of the arc-shaped guide wall 22a in one direction tangential to the arc-shaped guide wall 22a. And an arcuate partition wall 22c disposed between the peripheral surface of the impeller 21 and the arcuate guide wall 22a.
- the air outlet 22b has a rectangular tube shape protruding from a part of the arc-shaped guide wall 22a to one side in the tangential direction of the arc-shaped guide wall 22a.
- the casing 22 has a deep dish shape.
- the casing 22 has a casing main body 2a having an arc-shaped guide wall 22a, an arc-shaped partition wall 22c and an opening for the air outlet 22b, and a portion corresponding to the opening of the impeller 21 is opened. And a lid plate 2b that closes the open side.
- the lid plate 2b is attached to the casing body 2a by a plurality of male screws.
- the arcuate guide wall 22a constitutes an air conditioning body that regulates the airflow generated by the rotation of the impeller 21.
- an arc-shaped passage 22d between the arc-shaped guide wall 22a and the arc-shaped partition wall 22c is a laminar flow portion F.
- the arcuate guide wall 22a of the casing 22 is provided with a through hole corresponding to the ion generating portions 51 and 52 and a mounting hole that is separated from the through hole.
- the ion generator 5 is attached by a male screw that is screwed into the attachment hole.
- the duct 4 has a rectangular tube shape whose lower end is connected to the air outlet 22b and whose upper end is open, and is integrally formed with the casing body 2a and the cover plate 2b.
- the duct 4 includes a side wall 4a disposed along one tangential direction of the arc-shaped guide surface 22a from the air outlet 22b, and another side wall 4b in which a separation distance from the air outlet 22b to the one side wall gradually increases.
- the rear wall 4c is connected to the one side wall 4a and the other side wall 4b, and the front wall 4d is arranged vertically and the front wall 4d is gradually shortened from the air outlet 22b to the rear wall 4c.
- the duct 4 has a laminar flow portion F on the side facing the impeller 21 of the front wall 4d, and the air blown from the outlet 22b is laminar along the one side wall 4a, the rear wall 4c, and the front wall 4d.
- the front wall 4d is provided with a through hole corresponding to the ion generating portions 51 and 52 and a mounting hole that is separated from the through hole.
- the ion generator 5 faces the laminar flow part F, is fitted into the through hole in the front wall, and is fixed by a male screw inserted into the mounting hole.
- the ion generator 5 includes two ion generators 51 and 52 that are separated from each other in a direction intersecting with the flow direction of the air blown by the blower 2, a power supply unit that supplies a voltage to the ion generators 51 and 52, Parts 51 and 52 and a holding body 53 for holding the power feeding part.
- the power supply unit supplies a voltage to the ion generation units 51 and 52
- the ion generation units 51 and 52 undergo corona discharge to generate ions.
- the ion generating parts 51 and 52 have discharge electrode convex parts 51a and 52a having a sharp shape, and induction electrode rings 51b and 52b surrounding the discharge electrode convex parts 51a and 52a. Discharge electrode convex portions 51a and 52a are arranged at the central portions of the induction electrode rings 51b and 52b, respectively.
- one ion generator 51 generates positive ions
- the other ion generator 52 generates negative ions.
- the ion generator 5 is attached to the arc-shaped guide wall 22a that constitutes the air conditioning body of the casing 22 and the front wall 4d of the duct 4.
- Two ion generating parts 51 and 52 are arranged at a position intersecting with the flow direction through which air flows.
- Three ion generators 5 attached to the arc-shaped guide wall 22 a of the casing 22 are held by one holding body 53.
- the three ion generators 5 are spaced apart from each other in the flow direction (the arc direction of the arc-shaped guide wall 22a) and cross in the flow direction (the rotation axis direction of the impeller 21). It is relatively biased.
- the ion generators 51 and 52 of the three ion generators 5 are arranged so that the polarities in the relatively deviating directions are equal and there is no overlap in the flow direction.
- the ion generators 51 and 52 of each of the ion generators 5 face the casing 22 from the through hole.
- the attachment side of the holding body 53 to the casing 22 has a curved surface 53b which is curved in the flow direction and has three openings 53a corresponding to the ion generating portions 51 and 52, respectively.
- the ion generators 51 and 52 are arranged in the respective openings 53a of the curved surface 53b.
- the above air purifiers are installed near the wall in the living room so that the suction port 11 is on the wall side.
- the impeller 21 is rotated by driving the blower 2. Indoor air is sucked into the housing 1 from the suction port 11, and an air flow path is generated between the suction port 11 and the discharge port 12. Foreign matter such as dust in the sucked air is removed by the filter 3 to become clean air.
- the air that has passed through the filter 3 is sucked into the casing 22 of the blower 2.
- the air sucked into the casing 22 becomes an air flow along the arc-shaped partition wall 22c around the impeller 21, and the arc-shaped flow path 22d between the arc-shaped partition wall 22c and the arc-shaped guide wall 22a.
- the airflow is rectified by the arcuate guide wall 22a and becomes a laminar flow at the laminar flow part F of the arcuate passage 22d.
- the air flowing through the laminar flow in the laminar flow portion F is guided to the air outlet 22b along the circular arc guide wall 22a as indicated by the two-dot chain line arrow X in FIG. It is blown in.
- Ion generating portions 51 and 52 are arranged on the arc-shaped guide wall 22 a of the casing 22 in the blower 2. Therefore, the ions generated by the ion generating portions 51 and 52 can be efficiently included in the air flowing through the laminar flow through the relatively narrow laminar flow portion F along the arc-shaped guide wall 22a. In addition, since the air flowing along the arc-shaped guide wall 22a flows at a high wind speed, ions can be more efficiently contained in the air.
- the ion generator 5 since the ion generator 5 has two ion generating parts 51 and 52 arranged at a position intersecting with the air flow direction, and increases the number of places where ions are included in the air for the first time, the ions are made more efficient. Can be included in the air.
- three ion generators 5 are arranged apart from each other in the flow direction of the clean air, and the three ion generators 5 are relatively biased in a direction crossing the flow direction to generate ions.
- the ion generators 51 and 52 of each of the vessels 5 are arranged so as not to overlap in the flow direction. This arrangement of the ion generator 5 increases the number of locations where ions are first included in the air, so that the positive ions generated by the ion generators 51 and 52 of the ion generator 5 and the negative ions are prevented from being canceled out. It is. Therefore, ions can be more efficiently contained in the air without making the casing 22 large.
- the positive ions and the negative ions included in the air flowing in the laminar flow are mixed when the air is blown out from the outlet 22 b of the casing 22 into the duct 4.
- the duct 4 allows air to flow in a laminar flow along the one side wall 4a, the rear wall 4c, and the front wall 4d.
- Ion generators 51 and 52 are arranged on the front wall 4d that allows this laminar flow to flow. Therefore, the positive ion and the negative ion generated by the ion generators 51 and 52 arranged in the duct 4 are included in the air containing the positive ion and the negative ion in the casing 22 of the blower 2. Can do. In addition, the amount of ions in the air can be increased.
- FIG. 5 is a sketch for measuring the air blown out from the discharge port of the air purifier placed on the floor in the room.
- Table 1 shows data showing the results of measuring the amount of ions in the room. The amount of ions at points A to E in the room of a conventional air purifier equipped with an ion generator and the air purifier according to this embodiment was measured. The results shown in Table 1 were obtained.
- the room has a floor area of 5.1 m ⁇ 5.7 m.
- the air purifier is installed on a floor 0.3m away from one wall on the 5.7m side.
- the measurement point A is a place separated by 0.1 m from one wall on the 5.1 m side in the room, and is a point of 1, 3, 5 points on the 5.7 m side.
- the measurement point C is the center of the room on the 5.1m side, and is the 1, 3, and 5 points on the 5.7m side.
- the measurement point E is a place which is separated by 0.1 m from the other wall on the 5.1 m side in the room, and is 1, 3, 5 places on the 5.7 m side.
- the measurement time is 20 minutes from the start of blowing, and the amount of ions is the number of positive ions in the air (number / cm 3 ) and the number of negative ions (number / cm 3 ).
- the average sterilization ion amount at the measurement point is 39,611 (pieces / cm 3 ), and the increase rate is 154%. Therefore, it was proved that the amount of ions released into the room can be increased.
- positive ions H + (H 2 O) m (m is an arbitrary integer) and negative ions O 2 ⁇ (H 2 O) n (n is an arbitrary integer) are sent into the air to react with ions. It has been known to sterilize floating bacteria and the like. However, since the ions recombine with each other and disappear, even if a high concentration can be achieved in the immediate vicinity of the ion generating element, the concentration decreases sharply as the transmission distance increases.
- the ion concentration can be tens of thousands / cm 3 in a small-capacity space such as an experimental device, it is at most 2 to 3,000 / cm in a large space such as an actual living space or work space.
- the limit was 3 .
- the inventors have found that when the ion concentration is 7000 / cm 3 at the laboratory level, 99% of avian influenza viruses can be removed in 10 minutes, and 99.9% can be removed at 50,000 / cm 3 . .
- the meanings of both removal rates indicate that 10 / cm 3 and 1 / cm 3 remain, respectively, assuming that 1,000 viruses / cm 3 were present in the air.
- the three ion generators 5 are arranged on the circular arc guide wall 22a of the casing having the laminar flow portion F in which the air flow is a laminar flow, and the air flow is performed.
- One ion generator 5 is arranged on the front wall 4d of the duct 4 having a laminar flow portion F that becomes laminar flow.
- the ion generator 5 should just be distribute
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Abstract
Description
この発明にあっては、整風体により整風にされて層流に通流する空気にイオンを効率的に含ませることができるため、空気とともに放出口から放出されるイオン量をより一層増すことができる。
この発明にあっては、ケーシング内の比較的狭い通路を通流する層流の空気にイオンを含ませることができる。従って、イオン発生部が発生したイオンを効率的に空気に含ませることができ、空気とともに放出口から放出されるイオン量をより一層増すことができる。
この発明にあっては、ケーシング内の比較的狭い通路を通流する層流の空気にイオンを含ませることができる。さらに、ケーシングの吹出口から通流路へ吹出された空気に、イオン発生部が発生したイオンを含ませることができる。因って、イオン発生部が発生したイオンをより一層効率的に空気に含ませることができ、空気とともに放出口から放出されるイオン量をより一層増すことができる。
この発明にあっては、ケーシング内の比較的狭い通路を高風速で通流する層流の空気にイオンを含ませることができる。因って、イオン発生部が発生したイオンをより一層効率的に空気に含ませることができ、空気とともに放出口から放出されるイオン量をより一層増すことができる。
この発明にあっては、ケーシング内の比較的狭い通路で層流の空気にイオンを含ませる箇所を多くすることができる。因って、イオン発生部が発生したイオンをより一層効率的に空気に含ませることができ、空気とともに放出口から放出されるイオン量をより一層増すことができる。
この発明にあっては、ケーシング内の比較的狭い通路で層流の空気にイオンを含ませる箇所を、既存のケーシングで多くすることができる。因って、イオン発生部が発生したイオンをより一層効率的に空気に含ませることができ、空気とともに放出口から放出されるイオン量をより一層増すことができる。
この発明にあっては、イオン発生部夫々が発生したイオンが打ち消されることなく層流の空気に含ませることができる。イオンをより一層効率的に空気に含ませることができ、空気とともに放出口から放出されるイオン量をより一層増すことができる。
この発明にあっては、ケーシングの、羽根車の回転により発生する気流を誘導する円弧形誘導面に保持体の湾曲面を対接させることができる。従って、複数のイオン発生部を同形状にすることができ、イオン発生部夫々のイオン発生量を均等にすることができる。
この発明にあっては、イオン発生部が発生したイオンを、空気の通流が層流となるようになしてある層流部で空気に含ませることができる。因って、イオン発生部が発生したイオンを空気に効率的に含ませることができる。また、空気に含まれるイオン量を増すことができ、室内へ放出されたイオン量を多くすることができ、室内空気の清浄化をより一層高めることができる。
11 吸込口
12 放出口
2 送風機
21 羽根車
22 ケーシング
22a 円弧形誘導壁
22b 吹出口
3 フィルタ
4 ダクト
5 イオン発生器
51,52 イオン発生部
53 保持体
F 層流部
また、従来から正イオンH+(H2O)m(mは任意の整数)、負イオンO2 -(H2O)n(nは任意の整数)を空気中に送出し、イオンの反応によって浮遊細菌等を殺菌することは知られていた。しかし、前記イオンは各々が再結合して消滅するため、イオン発生素子の極近傍では高濃度が実現できても、送出する距離が遠くなればなるほど急激にその濃度が減少してしまっていた。従って、実験装置のような小容量の空間ではイオン濃度を数万個/cm3とすることが出来ても、実際の居住空間や作業空間等の大きな空間ではせいぜい2~3,000個/cm3の濃度とするのが限度であった。
一方発明者らは、実験室レベルで前記イオン濃度が7000個/cm3の時には、トリインフルエンザウイルスが10分間で99%、50,000個/cm3においては99.9%除去できることを発見した。双方の除去率が持つ意味は、空気中に1,000個/cm3のウイルスが存在したと仮定すると、各々10個/cm3及び1個/cm3が残留することを示す。つまり、イオン濃度を7,000個/cm3から50,000個/cm3に高めることによって、残留するウイルスが1/10になるのである。
このことから、人などが生活する居住空間や作業空間において、高濃度のイオンを送出するだけではなく、空間全体にイオン濃度を高濃度にすることが感染症予防や環境浄化において重要なことであることがわかる。
Claims (9)
- 吸込口及び放出口を有するハウジングと、該ハウジング内に収容されている送風機と、
該送風機が前記吸込口から吸込む空気を通過させるフィルタと、イオンを発生させるイオン発生部とを備え、該イオン発生部が発生したイオンを、前記送風機により吸込まれた空気とともに前記放出口から放出する空気清浄装置において、前記イオン発生部は、前記空気の通流が層流となる層流部に配してあることを特徴とするイオン発生装置。 - 前記送風機は羽根車を有し、該羽根車の回転により発生する気流を整風する整風体を備え、該整風体に前記イオン発生部を配してある請求項1記載のイオン発生装置。
- 前記送風機は、羽根車及び該羽根車を収容してあるケーシングを有し、該ケーシング及び前記放出口の間に配され、前記空気を前記放出口へ通流させる通流路を有し、該通流路及び前記ケーシングに前記イオン発生部を配してある請求項1記載のイオン発生装置。
- 前記ケーシングは、前記羽根車の回転により発生する気流を誘導する円弧形誘導壁及び該円弧形誘導壁の一部から円弧形誘導壁の接線方向一方へ開放されている吹出口を有し、前記円弧形誘導壁に前記イオン発生部を配してある請求項3記載のイオン発生装置。
- 前記イオン発生部は、前記空気が通流する通流方向と交差する方向に離隔して複数配してある請求項1から4のいずれか一つに記載のイオン発生装置。
- 前記イオン発生部は、前記通流方向へ離隔し、且つ前記通流方向と交差する方向へ相対的に偏倚した位置に複数配してある請求項1から4のいずれか一つに記載のイオン発生装置。
- 前記イオン発生部夫々は、前記通流方向の重なりがないように配してある請求項6記載のイオン発生装置。
- 前記イオン発生部夫々を保持する保持体を有し、該保持体は、前記通流方向へ湾曲し、且つ前記イオン発生部夫々に対応する箇所が開口している湾曲面を有し、該湾曲面の前記開口に前記イオン発生部夫々を配してある請求項7記載のイオン発生装置。
- 請求項1から8までのいずれか一つに記載のイオン発生装置を備える空気清浄装置。
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EP10764319A EP2420259A4 (en) | 2009-04-16 | 2010-03-02 | ION GENERATING APPARATUS AND AIR CLEANING APPARATUS |
US13/264,434 US8934212B2 (en) | 2008-08-28 | 2010-03-02 | Ion generating apparatus and air cleaner |
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JP2003090571A (ja) * | 2001-09-20 | 2003-03-28 | Sharp Corp | 空気改質機器 |
JP2005076906A (ja) * | 2003-08-28 | 2005-03-24 | Sharp Corp | 空気調節装置 |
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CN100346839C (zh) * | 2003-10-07 | 2007-11-07 | 陈锦星 | 等离子纳米催化消毒净化器 |
JP4716927B2 (ja) * | 2006-06-02 | 2011-07-06 | シャープ株式会社 | 冷蔵庫 |
MY164590A (en) * | 2008-08-28 | 2018-01-15 | Sharp Kk | Ion detectiing apparatus and ion generating apparatus provided with the same |
EP2413443B1 (en) * | 2009-03-26 | 2017-05-03 | Sharp Kabushiki Kaisha | Ion generation apparatus |
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JP2002257408A (ja) | 2001-03-02 | 2002-09-11 | Sharp Corp | 空気調和機 |
JP2003090571A (ja) * | 2001-09-20 | 2003-03-28 | Sharp Corp | 空気改質機器 |
JP2005076906A (ja) * | 2003-08-28 | 2005-03-24 | Sharp Corp | 空気調節装置 |
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