JP2010051398A - Ion diffusion apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ion diffusion apparatus which improves sterilization performance by supplying a sufficient amount of ions within a room. <P>SOLUTION: The ion diffusion apparatus includes an ion generator 17 having a first ion generating section 17a for generating either a positive ion or a negative ion and a second ion generating section 17b for generating the other ion, a blower fan 5, and an air flow passage 6 for guiding the ion generated at the ion generator 17 to an air outlet 10 by driving the blower fan 5. The air flow passage 6 has a plurality of right and left divided passages 8a which are formed by dividing the air flow passage in the right and left directions and are wider in the right and left directions on the upstream side compared to the downstream side. Each of the right and left divided pathways 8a passes only one of the positive ions and the negative ions. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an ion diffusing apparatus that delivers ions and diffuses them into a room.

  A conventional ion diffusing apparatus is disclosed in Patent Document 1. In this ion diffusing device, a blower fan is provided in a housing having a blower opening at the front, and the blower fan and the blower outlet are connected by a blower path. An ion generator for generating ions is arranged in the air blowing path.

  The air flow generated by the blower fan flows through the blower path, and the air flow containing the ions generated by the ion generator is sent out from the blowout port. The air flow path is formed such that the downstream side spreads in the left-right direction with respect to the upstream side, and the air flow sent from the blowout port spreads in the left-right direction to diffuse ions into the living room. Thereby, positive ions and negative ions can be supplied into the room to sterilize the floating bacteria in the room.

Japanese Patent No. 3797993 (pages 4 to 18, FIGS. 1 and 20)

  However, according to the conventional ion diffusing apparatus, the air flow path is formed so as to extend from side to side, so that the air flow is bent and circulates in the air flow path. For this reason, positive ions and negative ions contained in the airflow easily collide. When positive ions and negative ions collide, they disappear, and there is a problem that the sterilization performance deteriorates due to a decrease in ions sent into the room.

  An object of the present invention is to provide an ion diffusing apparatus that can sufficiently supply ions into a living room to improve sterilization performance.

  In order to achieve the above object, the present invention provides an ion generator having a first ion generator that generates one of positive ions and negative ions and a second ion generator that generates the other, a blower fan, A blower path that guides ions generated by the ion generator to a blower outlet by driving a blower fan, and the blower path is widened in the left-right direction on the downstream side with respect to the upstream side and is divided into a plurality of left and right parts Each of the left and right divided passages has either positive ions or negative ions circulated.

  According to this structure, the airflow which distribute | circulates a ventilation path by the drive of a ventilation fan is sent out to a living room from a blower outlet. The air blowing path is divided in the left-right direction by a plurality of left and right divided passages. For example, positive ions generated in the first ion generating portion circulate in one left and right divided passage, and the second ion generating portion in the other left and right divided passages. Negative ions generated in the circulate.

  According to the present invention, in the ion diffusing apparatus having the above-described configuration, one of the first and second ion generating units is disposed inside each of the left and right divided passages or in the vicinity of an opening end on the air inflow side of each of the left and right divided passages. It is characterized by.

  According to this configuration, for example, the first ion generating part is arranged in one left and right divided passage and positive ions circulate, and the second ion generating part is arranged in another left and right divided passage and negative ions circulate. . In addition, a first ion generating portion is arranged in the vicinity of an opening end on the air inflow side of one of the left and right divided passages, and positive ions circulate in the left and right divided passages, and in the vicinity of the opening end on the air inflow side of the other left and right divided passages. The second ion generator is arranged in the left and right, and negative ions circulate in the left and right divided passages.

  Further, the present invention is characterized in that, in the ion diffusing apparatus configured as described above, the polarity of ions generated by the first and second ion generators is switched every predetermined period. According to this configuration, for example, positive ions generated by the first ion generation unit circulate through one left and right divided passage, and negative ions generated by the second ion generation unit circulate through the other left and right divided passage. When a predetermined time elapses, negative ions generated by the first ion generating unit flow through one of the left and right divided passages, and positive ions generated by the second ion generating unit flow through the other left and right divided passages.

  According to the present invention, in the ion diffusing device having the above-described configuration, the first and second ion generating portions are provided in the left and right divided passages or in the vicinity of the opening end of the left and right divided passages on the air inflow side. It is characterized in that the two ion generators are driven alternately.

  According to this configuration, the positive ions generated by the first ion generation unit flow through one of the left and right divided passages, and the negative ions generated by the second ion generation unit flow through the other left and right divided passages. When a predetermined time elapses, negative ions generated by the second ion generation unit pass through one of the left and right divided passages, and positive ions generated by the first ion generation unit flow through the other left and right divided passages.

  Further, the present invention is characterized in that, in the ion diffusing apparatus having the above-described configuration, positive ions flow through one of the adjacent left and right divided passages, and negative ions flow through the other. According to this configuration, positive ions and negative ions are sent out from two adjacent left and right divided passages.

  Further, in the ion diffusing device having the above-described configuration, the air blowing path has a left wall and a right wall having curved portions and extends on both sides, the center of the curved portion of the left wall and the curved portion of the right wall. An opening end on the air inflow side of the left and right divided passages is formed on the upstream side of the position connecting with the center of the left and right sides.

  According to this configuration, the airflow that circulates through the ventilation path is likely to go straight due to inertia, and the airflow is likely to be disturbed away from the curved surfaces of the left wall and the right wall. The plurality of left and right divided passages are provided to extend from the upstream side in the direction of the outlet from the position connecting the center of the curved surface portion of the left wall and the center of the curved surface portion of the right wall. The left and right divided passages increase the length of the wet cross section of the channel cross section (the length of the circumference surrounding the cross section) and increase the area in contact with the left and right wall surfaces. Thereby, the airflow which bends and distribute | circulates tends to follow the left and right wall surface of a right-and-left division | segmentation channel | path, and peeling from a wall surface is reduced. Therefore, the air current flowing through the air flow path can be expanded to the left and right by suppressing the disturbance of the air current.

  In the ion diffusing apparatus having the above-described configuration, the present invention includes an upper and lower divided passage that divides the blower path into upper and lower portions, and the left and right divided passages are narrow passages that divide the outlet side of the upper and lower divided passages into left and right. It is characterized by that. According to this configuration, when the blower fan is driven, airflow flows through the plurality of upper and lower divided passages and is rectified. And the ion which generate | occur | produced with the micro flow generator is contained in the right-and-left division | segmentation channel | path formed in the downstream part of an up-and-down division | segmentation channel | path.

  According to the present invention, in the ion diffusing device having the above-described configuration, the ion generator is disposed in the upper and lower divided passages, and the wind speed of the airflow flowing through the upper and lower divided passages is circulated in the lower upper and lower divided passages. It is characterized by being larger than the wind speed of the airflow. According to this configuration, the airflow at the upper part of the outlet becomes an air curtain, and ions contained in the lower airflow are supplied to the lower part of the living room.

  According to the present invention, the left and right divided passages are provided in the air passage extending in the left and right directions, and either positive ions or negative ions are circulated in each of the left and right divided passages. Can be reduced. Therefore, the disappearance of ions can be reduced, ions can be sufficiently supplied into the room, and the sterilization performance can be improved.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view showing the ion diffusing apparatus of the first embodiment. The ion diffusing device 1 is provided with leg portions 2 a at the left and right ends of the main body housing 2, and is installed on the floor surface in the living room. A blower outlet 10 is opened at the upper front of the main body housing 2.

  FIG. 2 shows a side sectional view of the ion diffusing apparatus 1. A suction port 3 for sucking air in the room is provided on the bottom surface of the main body housing 2. A blower fan 5 covered with a housing 5a is disposed at the lower part of the main body housing 2. The blower fan 5 is formed of a cross flow fan, and sucks air into the housing 5a from the circumferential direction of the rotor blade (not shown) through the intake port 5b, and exhausts it from the exhaust port 5c in the circumferential direction. An air filter 4 is provided between the suction port 3 and the blower fan 5.

  The exhaust port 5c of the blower fan 5 and the blower outlet 10 are connected by a blower path 6 through which an airflow from the blower fan 5 flows. The ventilation path 6 is formed integrally with the housing 5a, extends upward, and bends forward. A plurality of upper and lower divided passages 11, 12, 13, and 14 that are divided in the vertical direction are provided in the blower path 6 in order from above.

  The upper upper and lower divided passages 11 are arranged on the outer peripheral side of the blower fan 5, and the lower upper and lower divided passages 14 are arranged on the inner peripheral side of the blower fan 5. The inner peripheral side of the exhaust port 5c indicates the front in the rotational direction of the rotor blade and is on the lower wall 6D (see FIG. 3) side. The outer peripheral side of the exhaust port 5c indicates the rear side in the rotation direction of the rotor blade, and is the upper wall 6U (see FIG. 3) side. The flow velocity of the airflow on the outer peripheral side of the exhaust port 5c is faster than that on the inner peripheral side due to centrifugal force.

  The blower outlet 10 is divided | segmented up and down corresponding to each up-and-down division | segmentation channel | paths 11-14, and opening part 10a, 10b, 10c, 10d is formed. As will be described in detail later, each of the upper and lower divided passages 11 to 14 is provided with an upper and lower widened portion 7 on the upstream side and a left and right widened portion 8 on the downstream side.

Electrodes 17a and 17b (first and second ion generators, see FIG. 8) of the ion generator 17 are arranged in the lowermost upper and lower divided passages 14 so as to be exposed. A voltage having an AC waveform or an impulse waveform is applied to the electrodes 17a and 17b of the ion generator 17. A positive voltage is applied to the electrode 17a, and ions generated by ionization combine with moisture in the air to form positive cluster ions mainly composed of H ⁺ (H ₂ O) m.

The electrode 17b negative voltage is applied, ions generated by ionization of moisture combined with mainly O ₂ in air ^- (H ₂ O) charge of n is negative cluster ions are formed. Here, m and n are arbitrary natural numbers. H ⁺ (H ₂ O) m and O ₂ ⁻ (H ₂ O) n agglomerate and surround the surface of airborne bacteria, odorous components, and stored bacteria.

Then, as shown in the formulas (1) to (3), the active species [.OH] (hydroxyl radical) and H ₂ O ₂ (hydrogen peroxide) are aggregated and formed on the surface of the microorganism or the like by collision. Destroy airborne bacteria and odor components. Here, m ′ and n ′ are arbitrary natural numbers. Therefore, indoor sterilization and odor removal can be performed by generating positive ions and negative ions and discharging them from the outlet 10.

H ⁺ (H ₂ O) m + O ₂ ⁻ (H ₂ O) n → OH + 1 / 2O ₂ + (m + n) H ₂ O (1)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ 2 OH + O ₂ + (m + m ′ + n + n ′) H ₂ O (2)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ H ₂ O ₂ + O ₂ + (m + m ′ + n + n ′) H ₂ O (3)

Conventionally, it has been known that positive ion ions H ⁺ (H ₂ O) m and negative ions O ₂ ⁻ (H ₂ O) n are sent into the air to sterilize floating bacteria by ion reaction. . Since these ions recombine with each other and disappear, even if a high concentration can be realized in the vicinity of the electrode of the ion generating element, the concentration rapidly decreases as the distance to be transmitted increases.

For this reason, even if the ion concentration can be tens of thousands / cm ^{3 in} a small volume space such as an experimental apparatus, it is at most 2 to 3000 / cm in a large space such as an actual living space or work space. ^The limit was ³ .

On the other hand, according to the experiment, 99% of avian influenza viruses can be removed in 10 minutes when the ion concentration is 7000 / cm ³ , and 99.9% can be removed in 10 minutes at 50,000 / cm ³ . That is, assuming that 1000 viruses / cm ³ of virus exist in the air, 10 / cm ³ and 1 / cm ³ remain by sterilization with ions, respectively. Therefore, the remaining virus can be reduced to 1/10 by increasing the ion concentration from 7000 / cm ³ to 50,000 / cm ³ .

  For this reason, it is very important not only to send out ions but also to maintain a high concentration of ions in the living space where people and the like live and the work space as a whole in preventing infections and purifying the environment.

  FIG. 3 is a side sectional view showing a schematic configuration of the blower path 6. The upper wall 6U and the lower wall 6D of the blower path 6 have curved surface portions 6a and 6b, respectively. Each wall surface forming the upper and lower divided passages 11 to 14 is curved along the upper wall 6U and the lower wall 6D, and one end D1 is provided in the vicinity of the blower fan 5.

  Thus, the upper and lower divided passages 11 to 14 are formed from the vicinity of the blower fan 5 to the outlet 10. The starting points A1 and A2 of the curved surface portions 6a and 6b are arranged downstream of the starting points (D1) of the upper and lower divided passages 11 to 14. Thereby, the line C1 connecting the centers of the curved surface portions 6a and 6b is arranged on the downstream side of the starting point (D1) of the upper and lower divided passages 11-14.

  When the airflow flowing upward through the air flow path 6 is bent forward by the curved surface portions 6a and 6b, the airflow is directed upward due to inertia and easily separated from the lower wall 6D along the upper wall 6U. Thereby, the airflow flowing through the upper part of the air flow path 6 becomes faster than the airflow flowing through the lower part.

  In addition, the upper and lower divided passages 11 to 14 are arranged in order from the outer peripheral side of the exhaust port 5 c of the blower fan 5. For this reason, the speed of the airflow which distribute | circulates the up-and-down division | segmentation channel | paths 11-14 can be made faster from upper direction in order.

  When the upper and lower divided passages 11 to 14 are not provided, the airflow that peels from the lower wall 6D increases. For this reason, as shown in FIG. 4, in the velocity distribution of the airflow at the outlet 10, a backflow region H in which the airflow flows back on the lower wall 6D side is generated and the airflow is disturbed.

  The plurality of upper and lower divided passages 11 to 14 are provided from the vicinity of the blower fan 5, and the upper and lower divided passages 11 to 14 increase the wetting edge length (periphery length surrounding the cross section) of the flow path cross section. For this reason, the influence of the viscosity is greater than the inertia on the flow, and the airflow is likely to follow along the wall surfaces of the upper and lower divided passages 11-14. Thereby, as shown in FIG. 5, the backflow area | region H is not formed, but peeling of airflow is reduced and turbulence of airflow is suppressed.

  At this time, when the starting point (D1) of the divided passage is on the downstream side of the line C1 connecting the centers B1 and B2 of the curved surface portions 6a and 6b, a backflow region H is generated as shown in FIG. For this reason, the turbulence of the airflow can be suppressed by arranging the line C1 connecting the centers of the curved surface portions 6U and 6b on the downstream side of the starting points (D1) of the upper and lower divided passages 11-14. When the starting point (D1) of the upper and lower divided passages 11 to 14 is in the vicinity of the exhaust port 5c of the blower fan 5, the turbulence of the airflow can be more reliably suppressed.

  Here, when the curved surface portions 6a and 6b have a constant curvature, the centers B1 and B2 are midpoints of the creepage distance. When the curved surface portions 6a and 6b change, the centers B1 and B2 are positions where (θ1 + θ2) / 2 when the angles of the tangent to the horizontal of the start and end points of the curved surface portions 6a and 6b are θ1 and θ2, respectively. .

  As shown in FIG. 7, even when two upper and lower divided passages 11 and 14 are provided, the turbulence of the airflow can be suppressed more than in the case shown in FIGS. At this time, the backflow region H may be formed in part due to the bending state of the blower path 6. On the other hand, increasing the quantity of the divided passages increases the pressure loss. For this reason, the quantity of division | segmentation paths is set according to the flow-path area of the ventilation path 6, and the bending condition.

  In FIG. 3, the vertically widened portion 7 is widened in the vertical direction on the downstream side with respect to the upstream side between the upper wall 6U and the lower wall 6D of the blower path 6. Thereby, an air current spreads from the blower outlet 10 in the vertical direction and is sent out. Each of the upper and lower divided passages 11 to 14 is widened in the vertical direction on the downstream side with respect to the upstream side, and the flow path cross section is formed in a slit shape whose width in the left and right direction is sufficiently larger than the width in the height direction. For this reason, the area which the airflow which distribute | circulates the ventilation path | route 6 contacts the upper and lower wall surface of each upper and lower division | segmentation channel | paths 11-14 becomes large. Thereby, the airflow which distribute | circulates the upper and lower division | segmentation channel | paths 11-14 can be expanded to an up-down direction, without peeling from an up-and-down wall surface.

  The left and right widened portions 8 are arranged on the downstream side of the upper and lower widened portions 7, and the upper and lower wall surfaces are extended in a planar shape from the end of the upper and lower widened portions 7. FIG. 8 shows a plan view of the upper and lower divided passage 14. The left and right widened portion 8 is widened in the left-right direction on the downstream side with respect to the upstream side between the left wall 6L and the right wall 6R of the air flow path 6. Thereby, an airflow spreads from the blower outlet 10 in the left-right direction and is sent out.

  The left and right widened portion 8 has a left and right divided passage 8a composed of a plurality of narrow passages obtained by further dividing the upper and lower divided passages 11 to 14 in the left and right direction. The electrodes 17a and 17b of the ion generator 17 are provided in the vicinity of the opening end on the air inflow side of each of the left and right divided passages 8a. Thereby, the positive ions generated at the electrode 17a circulate through the one left and right divided passage 8a. Negative ions generated at the electrode 17b flow through the left and right divided passages 8a adjacent to the left and right divided passages 8a. Thereby, the annihilation by the collision of positive and negative ions can be reduced.

  The left wall 6L and the right wall 6R have curved surface portions 6c and 6d, respectively. Each wall surface forming the left and right divided passages 8a is curved along the left wall 6L and the right wall 6R. Each of the left and right divided passages 8 a is widened in the left-right direction on the downstream side with respect to the upstream side by the left and right wall surfaces, and the width in the left-right direction of the flow path cross section is narrowed with respect to the vertical widened portion 7. As a result, the wet spot length of the cross section of the flow path is increased, and the area of the airflow flowing through the blower path 6 is increased in contact with the left and right wall surfaces of the left and right divided paths 8a. Therefore, it is possible to spread the airflow in the left-right direction without causing the airflow flowing through the left and right divided passages 8a to peel from the left and right wall surfaces.

  Further, a line C2 connecting the centers of the curved surface portions 6c and 6d is arranged on the downstream side of one end D2 of the wall surface of the left and right divided passage 8a. That is, the opening end on the air inflow side of the left and right divided passages 8a is arranged upstream of the line C2. Therefore, the airflow can be reliably bent along the left and right divided passages 8a, and the turbulence of the airflow in the left and right widened portion 8 due to the separation of the airflow can be prevented.

  The left and right widened portions 8 may be arranged on the upstream side of the vertical widened portion 7. At this time, the air blowing path 6 has a left and right divided passage divided in the left and right direction, and a left and right widened portion 8 is formed in an upstream portion of the left and right divided passage. The left and right widened portion 8 is widened in the left-right direction on the downstream side with respect to the upstream side. An upper and lower divided passage is formed by a narrow passage obtained by further dividing each left and right divided passage in the vertical direction in the upper and lower widened portion 7 arranged in the downstream portion of the left and right divided passage. Each of the upper and lower divided passages is widened in the vertical direction on the downstream side with respect to the upstream side.

  However, it is more desirable to arrange the left and right widened portions 8 on the downstream side of the vertical widened portion 7. Thereby, the ventilation path 6 integral with the housing 5a of the blower fan 5 can be molded with the removal direction of the upper widened portion 7 as the left and right and the removal direction of the left and right widened portion 8 as the front and rear. Therefore, the ventilation path 6 can be easily formed.

  Further, as shown in FIG. 2 described above, the upper and lower divided passages 14 are provided with a throttle portion 14 a on the upstream side of the ion generator 17. The narrowed portion 14 a has a width d in the height direction that is narrower than a width D in the height direction of the starting point of the upper and lower divided passages 14. The air flow is rectified while the wind speed is increased in the ion generator 17 by the throttle unit 14a. Thereafter, the flow path is widened by the upper and lower widened portions 7.

  When the ion concentration is high and saturated near the electrodes 17a and 17b of the ion generator 17, ions are hardly generated. For this reason, it is possible to increase the velocity of the airflow of the electrodes 17a and 17b of the ion generating device 17 at the throttle portion 14a and to reduce the ion concentration. Thereby, many ions can be generated by the ion generator 17 and included in the airflow.

  In the ion diffusing device 1 having the above-described configuration, when the blower fan 5 and the ion generating device 17 are driven, the air in the living room is taken into the main body housing 2 from the suction port 3. The air taken into the main body housing 2 collects dust by the air filter 4 and is guided to the blower fan 5 from the air inlet 5b.

  Exhaust air from the blower fan 5 flows through the blower path 6 through the exhaust port 5c. The airflow flowing through the blower path 6 branches into the upper and lower divided passages 11 to 14, and the flow path expands in the vertical direction in the upper widened portion 7 and the flow path expands in the horizontal direction in the left and right widened portion 8. Thereby, the airflow which spreads up and down and the left-right direction from the blower outlet 10 is sent out.

  The airflow flowing through the upper and lower divided passages 14 below the blower path 6 branches into a plurality of left and right divided passages 8a. Each of the left and right divided passages 8a includes one of positive ions and negative ions from the electrodes 17a and 17b of the ion generator 17. Thereby, the air flow containing positive ions and negative ions is sent out from the opening 10d.

  Moreover, the airflow sent from the openings 10a, 10b, and 10c flows through the upper and lower divided passages 11, 12, and 13 above the air blowing path 6, and the wind speed is high. For this reason, the airflow sent from the openings 10a, 10b, and 10c serves as an air curtain to prevent ions from diffusing upward. Therefore, sufficient ions are supplied to the living space by sending an air flow from the opening 10d toward the living space in the living room, and sending an air current upward from the opening 10a, 10b, 10c to the living space. A high bactericidal effect can be obtained.

  Further, the upper and lower divided passages 11 to 14 are arranged in order from above, and the air velocity sent from the openings 10a to 10d is increased in order from the top as shown in FIG. Thereby, turbulence of the airflow can be reduced.

  FIG. 9 and FIG. 10 are diagrams showing the results of examining the distribution of ions in the room by the ion diffusing apparatus 1 of the present embodiment. The living room R has a height of 4800 mm, a width of 6400 mm, and a depth of 6400 mm. The ion diffusing device 1 is installed on the floor surface F of one side wall W1, and sends an airflow obliquely upward toward the side wall W2 facing the side wall W1. The ion concentration is measured on a horizontal plane E having a height of 1600 mm. Further, since equal amounts of positive ions and negative ions are required for sterilization, the concentration of the smaller positive ions and negative ions is shown.

  For comparison, as shown in FIG. 11, the distribution of ions when an electrode 17c that simultaneously generates positive and negative ions is provided in each of the left and right divided passages 8a is shown in FIG. In FIG. 11, positive ions and negative ions are included in the airflow flowing through each of the left and right divided passages 8 a. Further, as shown in FIG. 13, the distribution of ions when the left and right divided passages 8a are not provided is shown in FIG.

  In the present embodiment shown in FIG. 10, the disappearance of ions is suppressed, and the ion concentration in the central portion of the living room R can be increased. On the other hand, according to FIG. 12, the part with high ion concentration of the center part in the living room R is narrow. Moreover, according to FIG. 14, the part with low ion concentration of the right-and-left end part in the living room R spreads, and the part with high ion concentration of the center part is further narrowed.

  According to the present embodiment, the left and right divided passages 8a are provided in the left and right widened portions 8 that extend to the left and right of the air blowing path 6, and either positive ions or negative ions are circulated in the left and right divided passages 8a. It is possible to reduce the collision of ions due to the air current that is bent and distributed. Therefore, the disappearance of ions can be reduced, ions can be sufficiently supplied into the room, and the sterilization performance can be improved. In addition, if one of the positive ions and the negative ions mainly circulates in each of the left and right divided passages 8a, the above-described effect can be obtained even if a small amount of the other is included.

  Further, since one of the electrodes 17a and 17b (first and second ion generating portions) is disposed in the vicinity of the opening end on the air inflow side of each of the left and right divided passages 8a, positive ions and negative ions are provided in each of the left and right divided passages 8a. Any one of these can be easily distributed. In addition, you may arrange | position the electrodes 17a and 17b (1st, 2nd ion generation part) inside each right-and-left division | segmentation channel | path 8a.

  Further, since positive ions circulate in one of the adjacent left and right divided passages 8a and negative ions circulate in the other, positive ions and negative ions can be evenly supplied to each position in the living room. Since equal amounts of positive ions and negative ions are required for sterilization of airborne bacteria, positive ions and negative ions can be supplied uniformly to obtain a sterilizing effect.

  Further, since the opening end on the air inflow side of the left and right divided passage 8a is formed on the upstream side of the position connecting the center of the curved surface portion 6c of the left wall 6L of the air flow path 6 and the center of the curved surface portion 6d of the right wall 6R, The airflow that peels off from the curved surface portions 6c and 6d can be reduced. Therefore, the turbulence of the air current can be suppressed and the disappearance due to the collision of ions can be prevented.

  Further, since the upper and lower divided passages 11 to 14 that divide the air blowing path 6 into upper and lower portions and the left and right divided passages 8a are formed by narrow passages that divide the upper and lower divided passages 11 to 14 into the left and right sides, the upper and lower divided passages are provided. The airflow can be rectified by 11 to 14 and guided to the left and right divided passages 8a. Further, the backflow region H can be prevented from being generated. Therefore, the turbulence of the airflow can be further suppressed, and the disappearance due to the collision of ions can be prevented.

  Further, the ion generator 17 is arranged in the lower vertical division passage 14 and the wind speed of the airflow flowing through the upper vertical division passages 11 to 13 is higher than the wind speed of the airflow flowing through the lower vertical division passage 14. By sending the airflow from the upper and lower divided passages 11 to 13 above the living space, the airflow becomes an air curtain and the diffusion of the airflow sent from the lower upper and lower divided passages 14 is prevented. Thereby, ions are not diffused above the living space, and ions can be sufficiently supplied to the living space. In addition, you may form the airflow of a different wind speed by several ventilation fans.

  Next, a second embodiment will be described. In the present embodiment, both the electrodes 17a and 17b shown in FIG. 8 can be generated by switching between positive ions and negative ions. Other parts are the same as those of the first embodiment shown in FIGS.

  And the polarity of the ion which generate | occur | produces by electrode 17a, 17b is switched for every predetermined period. That is, as shown in FIG. 8 described above, as in the first embodiment, positive ions are generated from the electrode 17a and negative ions are generated from the electrode 17b. When a predetermined period elapses, negative ions are generated from the electrode 17a and positive ions are generated from the electrode 17b as shown in FIG. Further, when a predetermined period elapses, ions are generated as shown in FIG.

  As a result, positive ions and negative ions are alternately sent to the left end and the right end of the airflow sent from the left and right widened portions 8 to the left and right. Therefore, positive ions and negative ions can be distributed at a high concentration over a wide range in the left-right direction in the room.

  FIG. 16 is a diagram showing the result of examining the distribution of ions in the room by the ion diffusing apparatus 1 of the present embodiment. Similarly to FIG. 9 described above, the living room R has a height of 4800 mm, a width of 6400 mm, and a depth of 6400 mm. The ion diffusing device 1 is installed on the floor surface F of one side wall W1, and sends an air flow toward the side wall W2 facing the side wall W1. The ion concentration indicates the concentration of the positive ion and the negative ion with respect to the horizontal plane E having a height of 1600 mm. According to the figure, the ion concentration can be increased in a wider range in the left-right direction than in the first embodiment.

  According to the present embodiment, since the polarity of the ions generated by the electrodes 17a and 17b (first and second ion generators) is switched every predetermined period, positive ions and negative ions are spread over a wide range on the left and right sides of the room. It can be distributed at a high concentration. Accordingly, the sterilization performance can be further improved. Moreover, since the polarity of the ion which distribute | circulates in the ventilation path 6 alternates, the charging of the ventilation path 6 can be reduced and adhesion of dust etc. can be suppressed.

  Next, a third embodiment will be described. In the present embodiment, as shown in FIG. 17, an electrode 17a and an electrode 17b are arranged in the vicinity of the opening end on the air inflow side of each of the left and right divided passages 8a. Other parts are the same as those in the first embodiment. The electrodes 17a and 17b corresponding to the left and right divided passages 8a are driven alternately. In the figure, the upper electrodes 17a and 17b are driven and then the lower electrodes 17a and 17b are driven. As a result, when the electrode 17a is driven in one left and right divided passage 8a and positive ions are generated, the electrode 17b is driven in the adjacent left and right divided passages 8a and negative ions are generated.

  As a result, as in the second embodiment, positive ions and negative ions are alternately sent to the left end and the right end of the air current that is sent while spreading the left and right widened portions 8 left and right. Therefore, positive ions and negative ions can be distributed at a high concentration over a wide range in the left-right direction in the room. Moreover, since the polarity of the ion which distribute | circulates in the ventilation path 6 alternates, the charging of the ventilation path 6 can be reduced and adhesion of dust etc. can be suppressed.

  According to the present invention, the present invention can be used for an ion diffusing apparatus that delivers ions and diffuses them into a room.

The perspective view which shows the ion diffusion apparatus of 1st Embodiment of this invention. Side surface sectional drawing which shows the ion diffusion apparatus of 1st Embodiment of this invention. Side surface sectional drawing which shows the ventilation path | route of the ion diffusion apparatus of 1st Embodiment of this invention. Side surface sectional drawing explaining the function of the up-and-down division | segmentation channel | path of the ventilation path | route of the ion diffusion apparatus of 1st Embodiment of this invention. Side surface sectional drawing explaining the function of the up-and-down division | segmentation channel | path of the ventilation path | route of the ion diffusion apparatus of 1st Embodiment of this invention. Side surface sectional drawing explaining the function of the up-and-down division | segmentation channel | path of the ventilation path | route of the ion diffusion apparatus of 1st Embodiment of this invention. Side surface sectional drawing explaining the function of the up-and-down division | segmentation channel | path of the ventilation path | route of the ion diffusion apparatus of 1st Embodiment of this invention. The top view which shows the right-and-left widened part of the ventilation path | route of the ion diffusion apparatus of 1st Embodiment of this invention. The perspective view which shows the ventilation state in the interior of the ion diffusion apparatus of 1st Embodiment of this invention. The figure which shows the measurement result of the ion concentration by the ion diffusion apparatus of 1st Embodiment of this invention. The perspective view which shows the ventilation state in the room of the ion diffusing apparatus of the comparative example of this invention The figure which shows the measurement result of the ion concentration by the ion diffusion apparatus of the comparative example of this invention The perspective view which shows the ventilation state in the room of the ion diffusing apparatus of the comparative example of this invention The figure which shows the measurement result of the ion concentration by the ion diffusion apparatus of the comparative example of this invention The top view which shows the right-and-left widened part of the ventilation path | route of the ion diffusing apparatus of 2nd Embodiment of this invention. The figure which shows the measurement result of the ion concentration by the ion diffusion apparatus of 2nd Embodiment of this invention. The top view which shows the right-and-left widened part of the ventilation path | route of the ion diffusing apparatus of 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ion diffuser 2 Main body housing 3 Suction port 4 Air filter 5 Blower fan 6 Blower path 6a, 6b Curved surface part 7 Vertically widened part 8 Left and right widened part 8a Narrow passage 10 Outlet 10a-10d Opening part 11-14 Dividing path 17 Fine particle generator 17a, 17b, 17c Electrode

Claims (8)

  Generated by the ion generating device having a first ion generating portion that generates one of positive ions and negative ions and a second ion generating portion that generates the other, a blower fan, and driving the blower fan. And a plurality of right and left divided passages that are widened in the left-right direction on the downstream side with respect to the upstream side and divided into the left and right sides. An ion diffusing apparatus characterized in that either positive ions or negative ions are circulated in the passage.   2. The ion diffusing apparatus according to claim 1, wherein one of the first and second ion generators is disposed in each of the left and right divided passages or in the vicinity of an opening end on an air inflow side of each of the left and right divided passages. .   3. The ion diffusing apparatus according to claim 2, wherein the polarity of ions generated by the first and second ion generators is switched every predetermined period.   The first and second ion generators are provided in the left and right divided passages or in the vicinity of the opening end on the air inflow side of each of the left and right divided passages, and the first and second ion generators are driven alternately. The ion diffusing apparatus according to claim 1.   The ion diffusing apparatus according to any one of claims 2 to 4, wherein positive ions flow through one of the adjacent left and right divided passages and negative ions flow through the other.   The left and right walls have curved portions on the left wall and the right wall, spread on both sides, and the left and right sides upstream of the position connecting the center of the curved portion of the left wall and the center of the curved portion of the right wall. 6. The ion diffusing apparatus according to claim 1, wherein an opening end on the air inflow side of the divided passage is formed.   7. The apparatus according to claim 1, further comprising an upper and lower divided passage that divides the blower path into upper and lower portions, and the left and right divided passages are narrow passages that divide the outlet side of the upper and lower divided passages into left and right. The ion diffusing apparatus according to any one of the above.   The ion generator is disposed in the upper and lower divided passages in the lower portion, and the wind speed of the airflow flowing through the upper and lower divided passages in the upper portion is larger than the wind speed of the airflow flowing in the lower and upper divided passages. Item 8. The ion diffusing device according to Item 7.

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