WO2013038765A1

WO2013038765A1 - Fine particle diffusion device

Info

Publication number: WO2013038765A1
Application number: PCT/JP2012/065267
Authority: WO
Inventors: 毅小河; 公明富本
Original assignee: シャープ株式会社
Priority date: 2011-09-12
Filing date: 2012-06-14
Publication date: 2013-03-21
Also published as: JP2013061095A

Abstract

The present invention is equipped with: a suction port (2a) that opens at the front surface of a case (2) and sucks in air within a room; a first blowing path (4c) through which the air flow sucked in from the suction port (2a) flows and is blown forward via a first discharge port (2c) formed in the case (2); a second blowing path (4d) through which the air flow sucked in from the suction port (2a) flows and is blown in a different direction than the first discharge port (2c) via a second discharge port (2d) formed in the case (2); and a fine particle generation device (10) that generates fine particles and emits said particles in the first blowing path (4c).

Description

Fine particle diffusion device

The present invention relates to a microparticle diffusing apparatus that sends microparticles such as ions and diffuses them into a room.

A conventional fine particle diffusion device is disclosed in Patent Document 1. This fine particle diffusing device constitutes an air cleaner, which opens a suction port on the back surface of the housing and opens a blower outlet on the top surface. A blower duct that connects the suction port and the blowout port is provided in the housing. A blower is arranged in the air duct. A filter that collects dust is disposed on the upstream side of the blower, and an ion generator that generates ions that are fine particles is disposed on the downstream side of the blower.

The fine particle diffusing device is installed on the floor surface, for example, with one side wall facing the back side. Indoor air is taken into the air duct from the suction port by driving the blower, and dust contained in the air is collected by the filter. The air from which the dust has been removed contains positive ions and negative ions generated by the ion generator, and is sent rearward and upward from the air outlet.

The air containing ions sent out from the air outlet rises along the indoor side wall, circulates along the ceiling wall, the side wall facing the front of the housing, and the floor surface, and returns to the suction port. Thereby, while ion distribute | circulates the whole room | chamber interior, ion is supplied to the living space where the user inhabited formed in the approximate center part of the floor. Therefore, the sterilization effect and deodorizing effect of the entire room including the living space can be obtained.

In addition, you may send air toward the front upper direction from a blower outlet. In this case as well, air containing ions sent out from the blowout port flows along the indoor ceiling wall, the side wall facing the front surface of the housing, and the floor surface, and returns to the suction port.

Japanese Unexamined Patent Publication No. 2011-10991 (pages 5-7, FIG. 1)

If the ion concentration in the space is increased, the sterilization effect and the deodorization effect can be improved. For this reason, if the flow rate of the air blown out from the outlet is increased, ions generated by the ion generator are sequentially sent out, so that the ion concentration in the room can be increased.

However, according to the conventional fine particle diffusing apparatus, when the flow rate of the air outlet is increased, the wind speed increases, and the air blown out from the air outlet is immediately guided to the side wall and the ceiling wall. For this reason, the air containing ion reaches | attains the living space on a floor surface, after distribute | circulating along the indoor wall surface. During this time, ions disappeared, and there was a problem that the ion concentration in the living space could not be sufficiently increased. In addition, when air containing ions is sent forward from the air outlet, there is a problem in that the temperature of the sensation decreases due to an increase in the wind speed directly hitting the user in the living space, and the user feels uncomfortable.

Also, there are similar problems when fine particles such as fragrances, deodorants, insecticides, and bactericides other than ions are sent out by a fine particle diffusion device.

An object of the present invention is to provide a microparticle diffusion device that can reduce the user's discomfort and increase the concentration of microparticles in the living space.

In order to achieve the above object, the present invention provides a suction port that opens to the front surface of a housing and sucks indoor air, and a first air outlet that opens to the housing while an airflow sucked from the suction port flows therethrough. The first air passage sent forward through the second airflow and the second airflow sent out in the direction different from the first air outlet through the second air outlet opened in the housing while the airflow sucked from the suction port circulates. It is characterized by comprising an air passage and a fine particle generator that generates fine particles and discharges them to the first air passage.

According to this configuration, indoor air is taken into the housing from the front surface of the housing through the suction port, and branches into the first air passage and the second air passage. The fine particles generated by the fine particle generator are released to the first air passage, and the air containing the fine particles is sent forward from the first air outlet. Moreover, the air which distribute | circulates a 2nd ventilation path is sent in a different direction from a 1st blower outlet from a 2nd blower outlet. The air sent out from the first air outlet is attracted to the air inlet by the intake air from the air inlet that opens to the front surface of the housing, and the fine particles diffuse into the living space. Moreover, even if the flow rate of the suction airflow at the suction port is increased, the flow rate of the air sent from the first air outlet is suppressed because it branches to the first and second air passages, and the increase in the wind speed in the living space is suppressed. .

Further, the present invention is characterized in that, in the fine particle diffusing apparatus having the above-described configuration, an air flow is blown out backward from the second air outlet. According to this structure, the airflow sent from the 2nd blower outlet distribute | circulates along a back side wall, a ceiling wall, a front side wall, and a floor surface.

Further, the present invention is characterized in that, in the fine particle diffusing apparatus having the above-described configuration, a first air outlet is disposed above the suction port. According to this structure, the airflow sent out from the 1st blower outlet is drawn below by the suction airflow of a suction inlet.

In the fine particle diffusing apparatus having the above-described configuration, the present invention can provide a shortcut before a part of the air flow sent from the first outlet reaches the opposite side wall when arranged along one side wall in the room. It is characterized by being guided to the suction port. According to this structure, the airflow sent out from the 1st blower outlet is attracted by the suction airflow of a suction inlet, and a part of airflow is sucked into a suction inlet before reaching an opposing side wall, and it shortcuts.

Further, the present invention is characterized in that in the fine particle diffusing apparatus having the above-described configuration, the fine particles generated by the fine particle generator include any of ions, fragrances, deodorants, insecticides, and bactericides. .

According to the present invention, the suction port that opens to the front surface of the housing, the first air passage that sends the airflow including ions from the first air outlet, and the first air outlet through a second air outlet in a different direction. Since it has the 2nd ventilation passage which sends out an air current, the air sent out from the 1st blower outlet by the suction of a suction mouth is drawn near to a suction mouth, and it can diffuse micro particles into living space. Moreover, even if the flow rate of the suction airflow at the suction port is increased, the flow rate of the air sent from the first air outlet is suppressed because it branches to the first and second air passages, and the increase in the wind speed in the living space is suppressed. . Therefore, the user's discomfort can be reduced and the concentration of the fine particles in the living space can be increased.

Side surface sectional view which shows the microparticle diffusion apparatus of embodiment of this invention The figure which shows distribution of the ion concentration in the room | chamber interior of the microparticle diffusion apparatus of embodiment of this invention. The figure which shows distribution of the ion concentration in the room | chamber interior of the microparticle diffusion apparatus of embodiment of this invention. The figure which shows distribution of the ion concentration in the room | chamber interior of the microparticle diffusion apparatus of a comparative example The figure which shows distribution of the ion concentration in the room | chamber interior of the microparticle diffusion apparatus of a comparative example Front sectional view showing a microparticle diffusion device of a comparative example Side sectional view showing a microparticle diffusion device of a comparative example

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a side cross-sectional view of a microparticle diffusion device 1 according to an embodiment. The fine particle diffusing apparatus 1 has a suction port 2a opened on the front surface of the housing 2, and a first air outlet 2c opened above the suction port 2a. A second air outlet 2d opens on the upper surface of the housing 2. A blower duct 4 formed of a resin molded product is disposed in the housing 2. The air duct 4 allows communication between the suction port 2a and the first air outlet 2c and between the air inlet 2a and the second air outlet 2d.

In the air duct 4, a blower 5 made of a sirocco fan is arranged with the intake side facing the suction port 2a. The air duct 4 has an intake passage 4a formed on the upstream side of the blower 5 and an exhaust passage 4b formed on the downstream side. A filter 3 that collects dust is disposed in the intake passage 4a so as to face the suction port 2a.

The exhaust passage 4b branches into a first air passage 4c and a second air passage 4d, and the first air outlet 2c and the second air outlet 2d are opened at the respective end faces. Near the first air outlet 2c of the first air passage 4c, a wind direction plate 6 that guides the airflow upward is provided. In the vicinity of the second air outlet 2d of the second air passage 4d, there is provided a wind direction plate 7 for guiding the airflow rearward and upward.

An ion generator 10 (microparticle generator) is disposed on the wall surface of the first air passage 4c. In the ion generator 10, an electrode (not shown) to which a voltage having an AC waveform or an impulse waveform is applied generates corona discharge to generate ions. When the voltage applied to the electrode is a positive voltage, hydrogen ions generated by corona discharge combine with moisture in the air to generate positive ions mainly composed of H ⁺ (H ₂ O) m. When the applied voltage of the electrode is a negative voltage, oxygen ions by corona discharge combine with moisture in the air to generate negative ions mainly composed of O ₂ ⁻ (H ₂ O) n. Here, m and n are arbitrary natural numbers. H ⁺ (H ₂ O) m and O ₂ ⁻ (H ₂ O) n aggregate around the surface of airborne bacteria and odorous components and surround them.

Then, as shown in the formulas (1) to (3), active species [· OH] (hydroxyl radicals) and H ₂ O ₂ (hydrogen peroxide) are agglomerated and produced on the surface of microorganisms or the like by collision. Destroy airborne bacteria and odorous 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 sending them out from the first outlet 2c.

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)

In the fine particle diffusing apparatus 1 having the above-described configuration, when the operation start is instructed, the blower 5 and the ion generator 10 are driven. As the blower 5 is driven, indoor air flows into the blower duct 4 from the suction port 2a as indicated by an arrow A. The air flowing into the air duct 4 is collected by the filter 3 and guided to the exhaust passage 4b, and branches into the first air passage 4c and the second air passage 4d.

The air flowing through the first air passage 4c contains ions generated by the ion generator 10, and is sent out from the first air outlet 2c upward and forward as indicated by an arrow B1. The air flowing through the second air passage 4d is sent upward and rearward from the second air outlet 2d as shown by the arrow B2.

At this time, the flow passage areas of the first and

second blower passages

4c and 4d are set so that the flow rate of the blown airflow at the first blowout port 2c is ½ or less of the suction airflow at the suction port 2a. Thereby, even if the flow volume of the suction | inhalation airflow of the suction inlet 2a is increased, the wind speed of the 1st blower outlet 2c can be maintained low. The flow rate of the suction airflow at the suction port 2a is preferably ³ m ³ / min or more, and is set to 8 m ³ / min, for example.

The airflow sent out from the second air outlet 2d rises along the indoor side wall facing the back surface of the housing 2 and flows along the ceiling wall, the side wall facing the front surface of the housing 2 and the floor surface.

The air stream sent out from the first outlet 2c flows toward the side wall facing the front surface of the fine particle diffusion device 1. At this time, since the flow rate of the suction airflow at the suction port 2a arranged on the front surface is increased, the airflow sent from the first air outlet 2c is attracted to the suction airflow and bent downward. Thereby, the wind speed of the indoor living space is suppressed and ions are diffused and spread throughout the living space. Therefore, the ion concentration in the living space can be increased, and the sterilization effect and the deodorizing effect can be improved. The living space is a range from the floor surface in the center of the room to the height of the person.

At this time, the flow rate of the suction air flow may be set so that a part of the air flow is short-cut before reaching the side wall facing the front surface of the microparticle diffusion device 1 and flows into the suction port 2a. Thereby, although ventilation efficiency falls a little, ion can be reliably diffused in living space.

2 and 3 show the ion concentration distribution in the room by the microparticle diffusion device 1 of the present embodiment. 4 and 5 show the distribution of ion concentration in the room by the microparticle diffusion device 1 'of the comparative example. The room R has a size of about 6 tatami mats, and the width W, the depth D, and the height H are 3500 mm, 3000 mm, and 2500 mm, respectively. 2 and 4 show distributions on a vertical plane passing through the center in the depth D direction, and FIGS. 3 and 5 show distributions on a horizontal plane having a height of 1250 mm.

In the fine particle diffusing apparatus 1 of the present embodiment, the ion concentration at the first outlet 2c is 5 million / cm ³ , the suction flow rate at the inlet 2a is 8 m ³ / min, the first outlet 2c and the second outlet. The flow rate of the 2d blown airflow is 4 m ³ / min, the wind speed of the first blower outlet 2 c is 2.5 m / second, and the wind speed of the second blower outlet 2 d is 2 m / second.

6 and 7 show a front sectional view and a side sectional view of a comparative microparticle diffusion device 1 '. For convenience of explanation, the same reference numerals are given to the same parts as those of the fine particle diffusion device 1 of the present embodiment shown in FIG.

The fine particle diffusion device 1 ′ is configured by arranging two similar air flow paths in the left and right directions in the housing 2. Suction ports 2 a each having a filter (not shown) are opened on both side surfaces of the housing 2. Two first air outlets 2c are opened on the upper surface of the housing 2, and the second air outlet 2d (see FIG. 1) is omitted. The first air outlet 2c is provided with a wind direction plate 6 that guides the airflow upward and forward.

The two air inlets 2a and the first air outlets 2c communicate with each other through the air ducts 4 having the same shape. In the blower duct 4, a blower 5 composed of a sirocco fan facing the suction side of each suction port 2 a is arranged. Further, an ion generator 10 (microparticle generator) is disposed on the downstream side of the blower 5.

When the blower 5 and the ion generator 10 are driven, indoor air flows into the air duct 4 from the suction port 2a. The air that has flowed into the air duct 4 collects dust by a filter and includes ions generated by the ion generator 10. And the airflow containing ion is sent to the front upper direction from the 1st blower outlet 2c.

4 and 5, four microparticle diffusion devices 1 ′ of the comparative example are arranged along one side wall. The ion concentration at the first outlet 2c is 5 million pieces / cm ³ , the suction flow rate at the suction port 2a and the blowout flow rate at the first blower outlet 2c are 1.5 m ³ / min (per unit), and the first blower outlet 2c. The wind speed is 4.2 m / sec.

According to the comparative example of FIGS. 4 and 5, the airflow sent forward and upward from the first air outlet 2 c circulates along the ceiling wall, the opposite side wall, and the floor surface. Thereby, the ion concentration is 100,000 / cm ³ or less in the upper part of the living space of the room R, and a sterilizing effect and a deodorizing effect cannot be sufficiently obtained.

On the other hand, in this embodiment of FIG. 2 and FIG. 3, the ion concentration of the living space is 100,000 / cm ³ or more, and a sterilization effect and a deodorizing effect can be sufficiently obtained.

According to the present embodiment, the suction port 2a that opens to the front surface of the housing 2, the first air passage 4c that forwards the airflow containing ions from the first air outlet 2c, and the rear through the second air outlet 2d. Since it has the 2nd ventilation path 4d which sends out an air current, the air sent out from the 1st blower outlet 2c by the suction of suction mouth 2a is drawn near to suction mouth 2a, and can diffuse ion into living space. Moreover, even if the flow rate of the suction airflow at the suction port 2a is increased, the flow rate of the air sent out from the first blowout port 2c is suppressed because it branches into the first and

second air passages

4c, 4d, and the wind speed of the living space is reduced. Increase is suppressed. Therefore, the user's discomfort can be reduced and the ion concentration in the living space can be increased.

In addition, the airflow sent out from the 2nd blower outlet 2d should just be a different direction (side, back, upward) from the 1st blower outlet 2c, but it is more desirable to send an airflow back from the 2nd blower outlet 2d. As a result, the airflow rises along the indoor side wall facing the back surface of the housing 2 in the vicinity, and the airflow flows along the ceiling wall and the side wall facing the front surface of the housing 2. For this reason, the airflow which goes to living space can be suppressed reliably, and a user's discomfort can be reduced more.

Moreover, since the 1st blower outlet 2c has been arrange | positioned above the suction inlet 2a, the airflow sent out from the 1st blower outlet 2c to the front upper direction bends below. Thereby, ions can be diffused over a wide range in the center of the room.

Further, if a part of the air flow sent out from the first air outlet 2c is short-cut before reaching the opposite side wall and guided to the inlet 2a, ions can be diffused more reliably.

In the present embodiment, the microparticle diffusion device 1 generates positive ions and negative ions by the ion generator 10 to sterilize the room, but is not limited thereto. The fine particle diffusion device 1 that generates only negative ions by the ion generator 10 and obtains an indoor relaxation effect may be used. Moreover, even if it is the microparticle spreading | diffusion apparatus 1 which discharge | releases a fragrance | flavor, a deodorant, an insecticide, a disinfectant, etc. to the 1st ventilation path 4c instead of ion and performs indoor deodorization, insecticide, disinfection, etc. Good.

According to the present invention, the present invention can be used for a microparticle diffusion device that sends out microparticles such as ions and diffuses them into the room.

DESCRIPTION OF SYMBOLS 1 Fine particle diffusion apparatus 2 Housing | casing 2a Inlet 2c 1st blower outlet 2d 2nd blower outlet 3 Filter 4 Blower duct 4c 1st ventilation path 4d 2nd ventilation path 5

Blower

6, 7 Wind direction board 10 Ion generator

Claims

A suction port that opens to the front of the housing and sucks indoor air, and a first air passage that forwards air through the first air outlet that flows in the housing while the airflow sucked from the suction port circulates And a second air passage that flows in the direction different from the first air outlet through the second air outlet that is opened in the housing while the airflow sucked from the air inlet circulates, and generates fine particles. A fine particle diffusing device comprising: a fine particle generator for discharging to one air passage.
The fine particle diffusing apparatus according to claim 1, wherein an air flow is sent backward from the second air outlet.
The fine particle diffusion device according to claim 1 or 2, wherein a first air outlet is disposed above the suction port.
2. When arranged along one side wall of a room, a part of the air flow sent out from the first air outlet is short-cut before reaching the opposite side wall and is guided to the suction port. Or the microparticle diffusion apparatus of Claim 2.
The microparticle diffusion device according to claim 1 or 2, wherein the microparticles generated by the microparticle generator include any of ions, fragrances, deodorants, insecticides, and bactericides. .