JP4830697B2 - Air cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air cleaner enabling an easy maintenance of an air quality improving function of the inside in a constitution in which the operation improving the air quality of an objective space is possible. <P>SOLUTION: The air cleaner 1 carries out an air cleaning operation mode by a main passage connecting from an intake 13, 14 to a blow-out opening 12, and a bypass flow path sending the air of the downstream of the main passage to the upstream. When an openable and closable flap 12 closes the blow-out opening 12, a flow blowing out from the main passage is wind-shielded to form a recirculating air flow flowing in a circulation pass. The odorous component adsorbed to a deodorization catalyst cartridge 49 arranged in the circulation pass is decomposed and reproduced by active species from a streamer discharge unit 63 arranged in the circulation pass. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to an air cleaner.

  2. Description of the Related Art Conventionally, there is an air purifier that returns air purified by removing odor components, dust, bacteria, viruses, and the like floating in the indoor air to the room again. In such an air cleaner, odor components, dust, viruses, and the like are cleaned by decomposing, dying, or inactivating them with ozone.

On the other hand, in recent years, for example, an air purifier described in Patent Document 1 shown below has been provided with a plurality of stages for purifying air. For example, in the air cleaner described in Patent Document 1, a stage in which relatively large dust is captured by a pre-filter, a stage in which electrostatic dust is collected using an electrostatic dust collection filter, dust floating in the air, odor Multiple steps such as cleaning the components by generating active species of fast electrons, ions, and hydroxy radicals that have high reaction activity while adsorbing components and viruses to the adsorption unit and sending them to the adsorption unit It has a cleaning stage.
JP-A-2005-300111

  However, in the air cleaner described in Patent Document 1 described above, the stages of cleaning are arranged in series with each other in one flow path from the suction port toward the outlet. For this reason, when it is necessary to wash | clean the cleaning part located inside a main body, after removing other cleaning parts, it is necessary to remove the target cleaning part and to wash | clean. Similarly, when it is necessary to replace a functional part located inside the main body, the other cleaning part must be removed and then the target cleaning part must be removed and replaced with a new functional part. I must.

  This invention is made | formed in view of the point mentioned above, and the subject of this invention is to perform the maintenance of the internal air quality improvement function easily in the structure which can be drive | operated which improves the air quality of object space. An object is to provide an air purifier capable of the above.

An air purifier according to a first aspect of the present invention is an air purifier that allows air in a target space to pass through and is purified, and includes a first flow path, a second flow path, a blower, a blowout windshield, and an air quality changer. And an action part. The first flow path is a flow path that connects an upstream suction port that sucks air from the target space and a downstream air outlet that blows air out of the target space. The second flow path is a flow path that connects the upstream space in the first flow path and the downstream space in the first flow path and downstream of the upstream space. Blower unit, while forming a first air flow from the upstream side toward the downstream side in the first flow channel, forming a second airflow directed from the downstream space on the upstream space in the second flow channel. Blowing airflow shield has a closed state to form the circulation flow path by the at least a portion the second flow path of the first flow path by closing the air outlet, and an open state of not closing the outlet, capable of changing the is there. The air quality changing unit is disposed at least between the upstream space and the downstream space in the first flow path, and changes the air quality in the vicinity by receiving the supply of active species . The action unit generates active species in the second flow path in order to supply the active species to the air quality changing unit. When the blowout windshield is in the open state, air is blown out from the blowout port.When the blowout windshield is in the closed state, the air blown out from the blowout port is blocked, and the blowout windshield is in the closed and open states. In any state, the second air flow is formed by the blower. Note that the predetermined function to be exhibited by the air quality changing unit may be an improvement of a function provided in advance by the air quality changing unit, or may be addition of a different function. In addition, air quality can be improved not only by removing components that humans feel uncomfortable, such as dust collection in the air, bacteria, and odor components, but also by components that humans feel comfortable by releasing vitamins and other substances into the target space. May be included in the air. Moreover, the wind-shielding part here contains the flap etc. which close or open a blower outlet, for example.

Here, the air blowing portion is opened , the air blowing portion forms the first air flow, the action portion acts and the air quality changing portion functions to improve the air quality of the target space. Air quality improvement operation can be performed. And the flow which circulates in a circulation flow path is formed by the 2nd air flow which returns to an upstream side via a 2nd flow path in the closed wind-shielding part, and an action part acts and an air quality change When the unit functions, it is possible to perform an internal circulation operation that efficiently maintains the air quality improvement function inside the air purifier.

And these air quality improvement operation | movement and internal circulation operation | movement can be switched only by making the position of a blowing windshield part into an open state , or making it a closed state.

Thereby, it is possible to easily perform maintenance of the internal air quality improvement function in a configuration in which the operation for improving the air quality of the target space can be performed only by changing the state of the wind shielding portion.

Air purifier according to the second aspect of the present invention is the air cleaner pertaining to the first aspect of the invention, the working portion is located at a position contiguous at least a second flow path or second flow path and spatially .

  Here, the air that has passed through the first channel and has been purified is mainly passed through the second channel. For this reason, air that has been purified to some extent passes through the second flow path or the vicinity of the action section that is disposed at a position spatially continuous with the second flow path.

  As a result, the second flow path is used as a flow path for disposing an action part that requires cleanliness of the air flowing in the vicinity while being used as a part of the flow path for the internal circulation operation. It becomes possible.

Here, examples of the action unit that requires the cleanliness of the air flowing in the vicinity include an electrode that performs plasma discharge for generating active species. When unclean air passes around the electrode, dirt such as ammonium nitrate and dust collected from the human body adheres to the electrode, making it difficult to generate active species. On the other hand, as described above, in the air cleaner according to the second aspect of the present invention, the air passing through the vicinity of the electrodes is purified, so that the problem of such dirt adhesion hardly occurs.

An air cleaner according to a third invention is the air cleaner according to the first invention or the second invention, wherein the air quality changing unit has a function of adsorbing odor components and receives supply of active species. The odor component is decomposed.

  Here, the air quality changing unit having the deodorizing function may gradually decrease the deodorizing ability by adsorbing the odor component.

On the other hand, in the air cleaner according to the third aspect of the invention, the active species released to the circulation channel by the action unit is supplied to the air quality changing unit having a deodorizing function through the circulation channel. For this reason, the odor component adhering to the air quality changing part is decomposed by the active species.

  This makes it possible to regenerate the deodorizing function of the air quality changing unit.

The air cleaner which concerns on 4th invention is an air cleaner which concerns on either of 1st invention from 3rd invention, Comprising: The air quality change part has antioxidant supply function. And an action part supplements the antioxidant supply function of an air quality change part by discharge | releasing antioxidant with respect to the air of a circulation flow path. Examples of the “antioxidant” herein include vitamins containing vitamin E such as d-α-tocopherol, gamma-aminobutyric acid, theanine (Nγ-ethyl L-glutamine, γ- (ethylamido) L-glutamic acid), and the like. Amino acids, polyphenols such as catechin (3-hydroxyflavanone), antioxidants such as proanthocyanidins, and the like.

  Here, the antioxidant is supplied to the air quality change unit during the internal circulation operation, so that the antioxidant is effective for the air passing through the air quality change unit when performing the air quality improvement operation. Can be included.

  Even when the antioxidant held in the air quality changing unit is reduced, the antioxidant can be replenished by the internal circulation operation.

An air cleaner according to a fifth aspect of the present invention is the air purifier according to any one of the first to fourth aspects of the present invention, further comprising a reception unit and a control unit. A reception part receives the predetermined information regarding the state of a blowing windshield part. Here, for example, the information that the reception unit performs the air quality improvement operation is received as information that positions the blowing windbreak unit in the closed state , and the information that the internal circulation operation is performed positions the blowing windbreak unit in the open state . Accept as information. Moreover, a control part makes the state of a blowing windshield part a closed state or an open state based on the information which the reception part received.

Here, since the control unit changes the state of the blowing windbreak unit according to the predetermined information received by the reception unit, the user simply inputs the predetermined information to the reception unit, and the air quality improvement operation and the internal circulation operation are performed. And can be automatically selected and executed.

An air cleaner according to a sixth aspect of the present invention is the air purifier according to any one of the first to fifth aspects of the present invention, further comprising a suction wind shield. The suction wind shield part can be changed between a closed state in which the suction port is closed to shield the first air flow and an open state in which the suction port is opened.

Here, the state of the suction wind shielding portion, in Rukoto changed in a closed state and an open state, it is possible to perform air Dari selectively capture or air shield from the suction port. Here, by closing both the blowout windbreak portion and the suction windbreak portion, a substantially constant amount of air is circulated inside the circulation channel without taking in dirty air in the target space. be able to.

  This makes it possible to efficiently perform the internal circulation operation in the circulation flow path with improved hermeticity without taking in dirty air into the circulation flow path.

  In the air cleaner according to the first aspect of the present invention, it is possible to easily perform maintenance of the internal air quality improvement function in a configuration capable of improving the air quality of the target space.

In the air purifier of the second invention, the second flow path is used as a part of the flow path for the internal circulation operation, and an action part is disposed so that the cleanliness of the air flowing in the vicinity is required. It can be used as a flow path.

In the air cleaner of the third invention, it is possible to regenerate the deodorizing function of the air quality changing unit.

In the air cleaner according to the fourth aspect of the present invention, when the air quality improvement operation is performed by supplying an antioxidant to the air quality change portion during the internal circulation operation, the air passing through the air quality change portion is reduced. Thus, an antioxidant can be effectively contained.

In the air cleaner of the fifth invention, the air quality improvement operation and the internal circulation operation can be automatically selected and executed only by the user inputting predetermined information to the reception unit.

In the air cleaner according to the sixth aspect of the present invention, it is possible to efficiently perform the internal circulation operation in the circulation flow path with improved hermeticity without taking in dirty air into the circulation flow path.

  Hereinafter, embodiments of an air cleaner according to the present invention will be described with reference to the drawings.

[Configuration of Air Cleaner 1]
The air cleaner 1 which concerns on one Embodiment of this invention is shown in FIG. This air purifier 1 is a floor-standing type air purifier that is installed on the indoor floor in order to keep indoor air clean and improve indoor comfort. The air cleaner 1 includes a main body 2 and a streamer discharge unit 63 (see FIGS. 11 and 12). The main body 2 can be divided into the front and the rear, the first main body 3 is provided on the rear side, and the second main body 4 is provided on the front side. The streamer discharge unit 63 is located on the upper right side of the main body 2 so as to extend in the front-rear direction when viewed from the front. FIG. 2 is an external perspective view with the front panel 21 removed.

  3 and 4 are views showing an open / close state of a flap 12C, which will be described later. In FIG. 3, the flap 12C is in an “open” state in the air cleaning operation mode. In FIG. The state where the flap 12C is in the “closed” state in the mode is shown.

<First body part 3>
As shown in FIG. 5, the first main body 3 includes a first main body casing 11, a fan motor 30, a blower fan 31 (blower), a unit storage B, a photocatalyst filter 43 (see FIG. 6), and a plasma catalyst filter 44. (See FIG. 6). FIG. 5 is a front view of the first main body 3 with the photocatalytic filter 43 and the plasma catalytic filter 44 removed.

[First body casing 11]
The first main body casing 11 houses therein the fan motor 30, the blower fan 31, the unit housing portion B, the photocatalyst filter 43, the plasma catalyst filter 44, and the like, as shown in FIGS. 1 and 3. And a flap 12 </ b> C, a lower suction port 13, and a side suction port 14. The air outlet 12 is provided at the rear side end of the upper surface of the first main body casing 11. The blower outlet 12 is an opening for blowing the purified air upward from the air cleaner 1. A flap 12C is attached to the air outlet 12 as shown in FIG. 3 showing the “open” state and FIG. 4 showing the “closed” state. This flap 12C is a plate-like member, and opens and closes the air outlet 12 by rotating around one end surface. The lower suction port 13 and the side suction port 14 are substantially rectangular openings for sucking indoor air into the air cleaner 1. The lower suction port 13 is provided at the lower front side end portion of the first main body casing 11 which is the same as the surface on which the air outlet 12 is provided. The horizontal length of the lower suction port 13 is substantially the same as the horizontal length of the front panel 21. The side suction ports 14 are a pair of openings provided on the front sides of the left and right side portions of the first main body casing 11.

  In addition, the 1st main body casing 11 comprises the main body casing 6 with the front panel 21 mentioned later. Inside the main casing 6, a main air flow path through which air that is sucked from the room through the suction ports 13 and 14, purified by the air cleaning unit 40, and blown into the room from the blower outlet 12 passes. And a bypass air flow path for returning the air in the vicinity of the outlet 12 to the upstream side.

  Here, when the flap 12C is in the “open” state, as shown in FIGS. 3, 6 and 7A, 7B, and 7C, the main air flow flowing through the main air flow path is shown. The air cleaning operation mode is executed by generating the bypass air flow F2 flowing through F1 and the bypass air flow path by the blower fan 31. 7A is a schematic front view of the air cleaner 1, FIG. 7B is a schematic diagram on the right side of the air cleaner 1, and FIG. 7C is a schematic top view of the air cleaner 1. Show.

  In addition, on the upstream side of the blower fan 31, the main air flow path generally flows from the front to the rear. Hereinafter, “front” refers to “the upstream side in the flow direction of the main air flow in the main air flow path”. "Rear" means "downstream side in the flow direction of the main air flow in the main air flow path". That is, the bypass air flow that flows through the bypass air flow path generally flows from the rear toward the front.

  Here, as shown in FIGS. 3, 6, and 7 (a), 7 (b) and 7 (c), the main air flow F 1 flowing through the main air flow path is sucked from the lower suction port 13 and the side suction port 14. It is an air flow that cleans the generated air and blows it out from the air outlet 12. A bypass air flow F2 flowing through the bypass air flow path flows upward in the vicinity of the air outlet 12, and flows from the rear to the front in a state of being stored in the unit storage portion B stored in the streamer discharge unit 63. In the plasma ionization section 42 that flows, the air flows to the vicinity of the center of the front surface, then descends, and is guided to the front of the prefilter 41 described later.

  When the flap 12C is in the “closed” state, as shown in FIGS. 4, 8 and 9A, 9B, 9C, one of the bypass flow path and the main air flow path is provided. A circulation flow path is formed by the unit, and a circulating air flow F3 flowing through the circulation flow path is generated by the blower fan 31, whereby the internal cleaning operation mode is executed. 9A is a schematic front view of the air cleaner 1, FIG. 9B is a schematic diagram on the right side of the air cleaner 1, and FIG. 9C is a schematic top view of the air cleaner 1. Show.

[Blower fan 31 and fan motor 30]
The blower fan 31 and the fan motor 30 shown in FIGS. 5 and 6 generate a main air flow F1 that flows through the main air flow path and a bypass air flow F2 that flows through the bypass air flow path. A centrifugal fan is adopted as the blower fan 31. For this reason, the blower fan 31 sucks air from the rotation axis direction and blows out air from the rotation center toward the outside in the radial direction. The fan motor 30 rotationally drives the blower fan 31. As the fan motor 30, an inverter motor whose frequency is controlled by an inverter circuit is employed.

  In the first space on the upstream side of the blower fan 31, an air cleaning unit 40 (see FIG. 6) described later is accommodated. In the second space on the downstream side of the blower fan 31, a scroll 33 formed along the circumferential direction around the fan motor 30, the blower fan 31, and the side surfaces of the blower fan 31, that is, the rotation axis of the blower fan. It is stored. Then, the air blown from the blower fan 31 is sent out from the blower outlet 12 into the room along the scroll 33.

[Photocatalytic filter 43]
As shown in FIG. 6, the photocatalyst filter 43 is formed in a pleat shape, and is formed by bonding an electrostatic filter and a titanium apatite-carrying filter. The photocatalytic filter 43 is disposed so that the electrostatic filter faces the front side and the titanium apatite-carrying filter faces the rear side. The electrostatic filter adsorbs dust and the like charged when passing through a plasma ionization unit 42 described later. The titanium apatite-carrying filter adsorbs dust or the like that has passed through the electrostatic filter. This titanium apatite-carrying filter is formed of PP fibers carrying titanium apatite, like the pre-filter 41. Titanium apatite is apatite in which some calcium atoms of calcium hydroxyapatite are replaced with titanium atoms by a technique such as ion exchange. This titanium apatite has the property of specifically adsorbing viruses, molds, bacteria, etc. contained in dust and the like. The titanium apatite has a photocatalytic function activated by active species supplied from a streamer discharge unit 63 described later, and inactivates or kills viruses, molds, bacteria, and the like.

  In addition, since the photocatalytic filter 43 is formed in a pleat shape, it can be easily folded according to the crease. For this reason, as shown in FIG. 2, the photocatalyst filter 43 is accommodated in the exchange filter accommodating part A formed upwards in the folded state.

[Plasma catalyst filter 44]
The plasma catalyst filter 44 is disposed in front of the blower fan 31 and behind the photocatalytic filter 43. That is, the plasma catalyst filter 44 is disposed between the blower fan 31 and the photocatalyst filter 43. The plasma catalyst filter 44 carries anatase type titanium dioxide. The plasma catalyst filter 44 adsorbs viruses and fungi in the air that have not been adsorbed by the photocatalytic filter 43. In the plasma catalyst filter 44, the adsorbed bacteria and viruses are killed or inactivated by the titanium dioxide activated by the active species.

[Unit storage B]
As shown in FIG. 10, the unit storage portion B stores the streamer discharge unit 63 in a detachable manner and constitutes a part of the bypass air flow path through which the bypass air flow F2 flows. The unit storage portion B is composed of a unit storage body B1 and a cartridge storage portion B2 that is attached to the unit storage body B1 so as to be freely opened and closed.

  A deodorizing catalyst cartridge 49 is accommodated in the cartridge accommodating portion B2. As shown in FIG. 10, the cartridge housing part B2 can replace the deodorizing catalyst cartridge 49 with the opening / closing part opened. The cartridge housing portion B2 is provided with a deodorizing opening BO so that air can be transferred to and from the bypass air flow path of the unit housing body B1 when the deodorizing catalyst cartridge 49 is housed and closed. Thus, deodorization is achieved by adsorbing and decomposing odorous components targeting air flowing through the bypass air flow path.

  In addition, when this deodorization catalyst cartridge 49 is used for a certain period or more, the effective adsorption surface area decreases, and the deodorization effect decreases. For this reason, the process which decomposes | disassembles and reproduces | regenerates the odor component adsorb | sucked to the surface, or the process to replace | exchange when the lifetime is reached is required.

  Here, the active species released from the streamer discharge unit 63 are passed through four communication holes 72 (see FIG. 12) and a deodorizing opening BO (see FIG. 9), which will be described later, and the bypass air flow path of the unit housing body B1. To the deodorizing catalyst cartridge 49. For this reason, the attached odor component that causes the deodorizing effect to decrease is decomposed by the active species. As a result, the deodorizing catalyst cartridge 49 recovers the adsorption capability of the odor component and can be used again as a deodorizing agent and is regenerated. Here, the deodorizing catalyst cartridge 49 is also regenerated in the air cleaning operation mode in which the flap 12C is in the “open” state, but in the internal cleaning operation mode in which the flap 12C is in the “closed” state, the circulation is performed. Since the amount of air passing through the bypass channel in the circulating air flow F3 flowing through the channel increases, the deodorization catalyst cartridge 49 can be regenerated more effectively.

  The unit housing main body B1 is provided with main body side contacts 75a and 75b so as to be electrically connected in a state where the streamer discharge unit 63 is attached and to be energized. The main body side contacts 75a and 75b are formed of a metal plate, and are connected to a power source via a power circuit (not shown) and a power cord (not shown) housed in the first main body 3. . Thereby, the main body side contacts 75a and 75b are provided so as to be separated in the longitudinal direction and the vertical direction, and by contacting with the discharge unit side contact 71 described later, the power source is connected to the streamer discharge unit 63 side. Transmits current from Here, the main body side contactor 75a is located on the rear side and comes into contact with the streamer discharge electrode 70, and the main body side contactor 75b is located on the front side and comes into contact with the ground plate 73. The unit storage body B1 is made of an insulating material such as resin.

<Streamer discharge unit 63>
As described above, the streamer discharge unit 63 is disposed by being housed in the unit housing portion B located on the upper right side of the first main body portion 3, and forms a part of the main air flow path (see FIGS. 2 and 5). ).

  As shown in FIGS. 11 and 12, the streamer discharge unit 63 has a discharge unit casing 69, a discharge portion 83, and discharge unit side contacts 71 and 81, and causes streamer discharge to occur. The active species to be supplied to the photocatalytic filter 43 are generated and released into the bypass air flow F2.

[Discharge unit casing 69]
A discharge unit 83 is attached to the discharge unit casing 69. The discharge unit casing 69 is a box-shaped member made of resin, and has an outer shape that matches the unit storage portion B. The discharge unit casing 69 has an upper surface and a right side surface that are open, and covers the front, rear, left side, and lower surface of the discharge part 83.

  As shown in FIG. 10, the discharge unit casing 69 is inserted into the unit storage portion B and is detachably attached to the unit storage portion B. When the discharge unit casing 69 is attached to the unit storage portion B, it covers the periphery of the discharge portion 83 together with the unit storage portion B to form a bypass air flow path.

  On the left side of the back surface of the discharge unit casing 69 (upper direction shown in FIG. 12), contactor covers 71G and 81G are provided at two locations so as to be separated from each other in the longitudinal direction and in the vertical direction. The contact cover 71G, 81G has a function of guiding insertion in the front-rear direction by sliding with a member on the unit storage portion B side when the streamer discharge unit 63 is inserted into the unit storage portion B. .

  As shown in FIG. 12, the discharge unit side contacts 71 and 81 are provided at positions corresponding to the positions of the contact covers 71G and 81G, respectively, so as to be separated in the longitudinal direction and the vertical direction. With the streamer discharge unit 63 attached, the left side shown in FIG. 12 is the front of the air cleaner 1 and the right side is the rear. As described above, the discharge unit side contact 71 and the discharge unit side contact 81 are guided by the contact covers 71G and 81G, respectively, while the streamer discharge unit 63 is inserted into the unit storage portion B, respectively. It contacts the contact 75a and the main body side contact 75b.

  In addition, a plurality of minute holes 77 are provided in an intermediate portion of the lower surface of the discharge unit casing 69 in the longitudinal direction. Further, in the rear portion of the lower surface of the discharge unit casing 69 in the longitudinal direction, four communication holes opened downward at positions corresponding to the four deodorizing openings BO of the unit storage portion B described above when stored. 72 is provided.

[Discharge part 83]
The discharge part 83 is a main part that causes streamer discharge, and includes a streamer discharge electrode 70 and a ground plate 73.

(Streamer discharge electrode 70)
The streamer discharge electrode 70 is constituted by a terminal attached to a portion where the metal plate 70 ′ is cut and raised, and a streamer discharge is generated between the streamer discharge electrode 70 and the ground plate 73 when a discharge voltage is applied. The streamer discharge electrode 70 and the metal plate 70 ′ are screwed to the discharge unit casing 69 via two insulating posts 71P by screws 71S (two) passing through the inside of the insulating posts 71P. One of the two insulating posts 71P is screwed so as to be in contact with the discharge unit side contact 71. Thereby, in the state where the streamer discharge unit 63 is attached to the unit housing portion B and the discharge unit side contact 71 is in contact with the main body side contact 75a, the discharge unit side contact 71 is connected to the streamer discharge electrode via the screw 71S. 70 is electrically connected. Thereby, the discharge unit side contact 71 can transmit a discharge voltage to the streamer discharge electrode 70 from the main body side contact 75a.

(Earth plate 73)
The ground plate 73 is formed of a metal plate and has a substantially rectangular outer shape larger than the metal plate 70 ′ of the streamer discharge electrode 70. The ground plate 73 is disposed in parallel to the streamer discharge electrode 70 and is disposed away from the streamer discharge electrode 70. The ground plate 73 is screwed to the discharge unit casing 69 via two insulating columns 81P by screws 81S (two) passing through the inside of the insulating column 81P. One of the two insulating columns 81P is screwed so as to contact the discharge unit side contact 81. Thereby, in a state where the streamer discharge unit 63 is attached to the unit housing portion B and the discharge unit side contactor 81 is in contact with the main body side contactor 75b, the discharge unit side contactor 81 is connected to the ground plate 73 via the screw 81S. And become electrically connected.

  As described above, since the main body side contactor 75a corresponding to the streamer discharge electrode 70 is located at the rear of the main body, it is difficult for the user to reach and the safety is ensured. Further, since the streamer discharge electrode 70 and the ground plate 73 are fixed to a discharge unit casing 69 formed of resin through insulating posts 71P and 81P, respectively, insulation is ensured.

  In the above configuration, the discharge unit casing 69 partitions the space where the streamer discharge electrode 70 and the ground plate 73 are disposed and the space where the contacts of the discharge unit side contacts 71 and 81 are disposed. . Thereby, the contact of the discharge unit side contacts 71 and 81 is arrange | positioned in the space partitioned from the space where the streamer discharge electrode 70 and the earth board 73 are arrange | positioned.

  As described above, the active species generated from the streamer discharge electrode 70 is released with respect to the bypass air flow flowing through the bypass air flow path. The active species released in the streamer discharge unit 63 flows through an upper surface guide 42G and a front surface guide 42H of a plasma ionization unit 42 described later, and is supplied to the front of the prefilter 41.

<Second body part 4>
As shown in FIGS. 1 and 2, the second main body 4 is detachably attached to the front surface of the first main body 3. The 2nd main-body part 4 has the front panel 21, the pre filter 41 (refer FIG. 6), and the plasma ionization part 42 (refer FIG. 6).

[Front panel 21]
As shown in FIG. 1, the front panel 21 is provided on the front surface of the second main body portion 4. The height of the front panel 21 is longer than the depth of the air purifier 1. Here, the translucent portion S is provided so that a human motion can be detected and detected by a human detection sensor (not shown) used to control ON / OFF and the like.

[Prefilter 41]
As shown in FIGS. 6 and 15, the pre-filter 41 is provided with a filter part 41 a and a partition ventilation part 41 b.

  The filter part 41a is provided behind the front panel 21 and removes relatively large dust and dust. The filter part 41a is composed of a net made of a thread-like resin net made of polypropylene (hereinafter referred to as PP) and a frame for holding the net. Visible light type photocatalyst and catechin are supported on the fibers constituting the net of the filter portion 41a so as to be exposed to the air side. The visible light type photocatalyst contains titanium oxide or the like whose photocatalytic action is activated by visible light, and removes bacteria and viruses such as fungi and bacteria contained in dust attached to the filter portion 41a. Catechin is a kind of polyphenol and is a generic name for epicatechin, epigallocatechin, epicatechin gallate, epigallocatechin gallate, and the like. This catechin suppresses the growth of fungi such as fungi and bacteria contained in dust and the like attached to the filter part 41a, and inactivates viruses.

  As shown in FIG. 15, the partition ventilation part 41b is provided in the center of the pre-filter 41 so as to partition the left and right filter parts 41a up and down. This partition ventilation part 41b has a plurality of holes 41O penetrating in the front-rear direction.

[Plasma ionization unit 42]
As shown in FIG. 2, the plasma ionization unit 42 is provided behind the pre-filter 41 and is provided on the back surface of the second main body unit 4. The plasma ionization unit 42 withstands relatively small dust floating in the air that has passed through the prefilter 41. As shown in FIG. 13, the plasma ionization unit 42 mainly includes a pair of counter electrodes 21 and 22 and a plurality of ionization lines 66 (linear electrode portions). In FIG. 13, only some of the ionization lines 66 among the plurality of ionization lines 66 are denoted by reference numerals, and others are omitted.

(Counter electrodes 21, 22)
As shown in FIG. 13, the pair of counter electrodes 21 and 22 are metal plates having a square-wave cross section, and are attached separately in the vertical direction. The counter electrodes 21 and 22 are disposed in the vicinity of the ionization line 66, and a corona discharge is generated between the counter electrode 21 and 22 and the ionization line 66 when a high voltage current is passed through the ionization line 66.

(Ionization line 66)
The plurality of ionization lines 66 play a role of withstanding the relatively small dust floating in the air that has passed through the prefilter 41 together with the counter electrodes 21 and 22. The ionization line 66 is disposed in front of the counter electrodes 21 and 22. When a discharge voltage is applied to the ionization line 66, corona discharge is generated between the ionization line 66 and the counter electrodes 21 and 22. The ionization line 66 is disposed so as to intersect the air path, and is disposed in the air flow passing through the air path. The ionization lines 66 are provided in parallel to the vertical direction, and a plurality of ionization lines 66 are arranged side by side in the horizontal direction. These ionized wires 66 are formed of a fine-diameter tungsten wire or the like, and are used as discharge electrodes for charging dust or the like.

(Top guide 42G, Front guide 42H)
As shown in FIG. 14, on the upper surface of the plasma ionization portion 42, an upper surface guide 42G, which is a groove that is long in the left and right and recessed downward, is formed. The upper surface guide 42G has the upper surface covered by the first main body 3 when the plasma ionization unit 42 is attached to the first main body 3, and constitutes a part of the bypass air flow path. On the right side of the upper surface guide 42G, a bypass air flow F2 containing active species flows from the opening portion on the front surface side of the unit storage portion B described above. The bypass air flow F2 that has flowed in this way flows downward from the vicinity of the center of the upper surface guide 42G.

  Further, as shown in FIGS. 13, 16, and 17, in the vicinity of the center of the front surface of the plasma ionization portion 42, a groove 43 and a rib 43R that protrudes in the rear side over the top and bottom and protrudes toward the front side at the edge. The front guide 42H comprised by these is provided. The front guide 42H has a shape corresponding to the contour of the partition ventilation portion 41b of the prefilter 41 described above. Then, as shown in FIG. 15, the back surface of the prefilter 41 abuts against the rib 43R of the plasma ionization portion 42, and a bypass air flow path is formed between the partition ventilation portion 41b of the prefilter 41 and the front guide 42H. The bypass air flow from the upper surface guide 42G is directed downward.

  At this time, the bypass air flow F2 by the air containing the active species that passes through the front guide 42H is released toward the front of the filter portion 41a through the hole 41O of the partition ventilation portion 41b, as shown in FIG. The

  As shown in FIGS. 16 and 17, the rib 43 </ b> R provided in the plasma ionization portion 42 has a recess that is recessed toward the rear at a portion corresponding to a part of the bulging portion of the partition ventilation portion 41 b. A portion 44R is provided. Thereby, a part of the bypass air flow F2 including the active species is also provided on the downstream side of the prefilter 41, and the active species is sufficiently provided also to the clean portion behind the prefilter 41. it can.

<Control unit 50>
As shown in FIG. 18, the control unit 50 provided in the air cleaner 1 includes a ROM 50a that stores various parameters such as a control program, predetermined replacement time data of the deodorization catalyst cartridge 49, and odor component allowable amount data, and processing. A RAM 50b for temporarily storing variables therein is connected. Further, the temperature sensor 50c, humidity sensor 50d, dust sensor 50e, gas sensor 50f, flap opening / closing unit 51, display panel 53, operation panel 54a, remote controller 54b, fan motor 30 and streamer discharge unit 63 are connected to the control unit 50, respectively. Has been.

  Various sensors such as the temperature sensor 50c, the humidity sensor 50d, the dust sensor 50e, and the gas sensor 50f output detection signals of the sensors to the control unit 50. The dust sensor 50e irradiates light into the air to be introduced, detects the amount of light that reaches the light receiving element by being scattered by smoke, dust, pollen, and other particles contained in the air, and detects the concentration of particles such as dust Can be measured. The gas sensor 50f can measure the concentration of gas generated from odor molecules and harmful gas components decomposed by active species. With these various sensors, the regeneration status of the deodorizing catalyst cartridge 49 can be judged and the regeneration time can be automatically adjusted.

  The display panel 53 displays a running operation mode (air cleaning operation mode or internal cleaning operation mode), monitor information by various sensors 50c to 50f, timer information, maintenance information, and the like. The display panel 53 can be constituted by a liquid crystal display panel, LEDs, other display elements, or a combination thereof.

  The user can change the setting of the operation mode (air cleaning operation mode or internal cleaning operation mode) of the air cleaner 1 by operating the operation panel 54a and the remote controller 54b. The control unit 50 that receives the setting input of the air cleaning operation mode or the internal cleaning operation mode from the operation panel 54a or the remote controller 54b or the like controls the opening / closing of the flap 12C by the flap opening / closing unit 51. Specifically, when receiving a command for the air cleaning operation mode, the control unit 50 controls the flap 12C to be in the “open” state by the flap opening / closing unit 51, as shown in FIG. Further, when receiving the command for the internal clean operation mode, the control unit 50 controls the flap 12C to be in the “closed” state by the flap opening / closing unit 51 as shown in FIG.

  Further, the control unit 50 is connected to the fan motor 30 and the streamer discharge unit 63. The control unit 50 can control the amount of air generated by the fan motor 30 and the amount of discharge related to the generation of active species by the streamer discharge unit 63 in accordance with the user's operation and the detection results of the various sensors 50c to 50f.

[Air cleaning action by the air cleaning unit 40]
As shown in FIGS. 6 and 8, the air cleaner 1 includes an air cleaning unit 40 (air cleaning unit) and a streamer discharge unit 63 including a prefilter 41, a plasma ionization unit 42, a photocatalytic filter 43, and a plasma catalyst filter 44. The foreign matter contained in the indoor air suck | inhaled from each inlet (lower inlet 13 and side inlet 14) is removed, and air is purified. Hereinafter, the air cleaning action by the air cleaning unit 40 will be described.

  The indoor air sucked from the lower suction port 13 and the side suction port 14 first passes through the filter portion 41 a of the prefilter 41. At this time, relatively large dust and dust are removed from the air. In addition, the action of the photocatalyst and catechin contained in the prefilter 41 suppresses the growth of fungi and viruses such as fungi and bacteria contained in the dust attached to the filter portion 41a of the prefilter 41, thereby inactivating the virus. Is done.

  The airflow that has passed through the prefilter 41 passes between the ionization line 66 and the counter electrodes 21 and 22. When a high voltage is applied between the ionization line 66 and the counter electrodes 21 and 22, a discharge is generated between the ionization line 66 and the counter electrodes 21 and 22. As a result, dust or the like contained in the air flow passing between the ionization line 66 and the counter electrodes 21 and 22 is charged with a positive charge.

  The airflow that has passed between the ionization line 66 and the counter electrodes 21 and 22 passes through the photocatalytic filter 43. At this time, dust or the like charged when passing through the plasma ionization unit 42 is adsorbed by the electrostatic filter. Further, dust or the like that has passed through the electrostatic filter is adsorbed by the titanium apatite-carrying filter. Note that, when passing through the ionization line 66 and the counter electrodes 21 and 22, viruses and bacteria contained in the dust are charged, so that the efficiency of adsorption of the virus and bacteria on the titanium apatite is increased.

  The air flow that has passed through the photocatalytic filter 43 passes through the plasma catalytic filter 44. In the plasma catalyst filter 44, viruses and bacteria in the air that have not been adsorbed by the photocatalyst filter 43 are adsorbed.

  Here, when the air cleaner 1 is executing the air cleaning operation mode (see FIGS. 3 and 6), the flap 12C is in the “open” state and the air outlet 12 is open. The main air flow F <b> 1 that has been purified by passing through 44 is blown out from the air outlet 12 into the room. Further, a part of the air that has passed through the plasma catalyst filter 44 flows as a bypass air flow F2 toward the bypass air flow path without being blown out into the room.

  Further, when the air cleaner 1 is executing the internal cleaning operation mode (see FIGS. 4 and 8), the flap 12C is in the “closed” state and the outlet 12 is closed, so that the circulation flow path is The main air flow F1 formed and purified through the plasma catalyst filter 44 flows into the bypass air flow path F2 toward the bypass air flow path without being blown out from the air outlet 12 into the room, It becomes the circulation air flow F3 which flows through a circulation flow path.

  As described above, the streamer discharge unit 63 is provided in the bypass air flow path. In the streamer discharge unit 63, a DC, AC, or pulse discharge voltage is applied between the streamer discharge electrode 70 and the earth plate 73, and streamer discharge is generated between the streamer discharge electrode 70 and the earth plate 73. When streamer discharge occurs, low-temperature plasma is generated in the discharge field, and active species are generated in the discharge unit casing 69 and released into the bypass air flow F2. These active species have a very high energy level and decompose and deodorize small organic molecules such as ammonia, aldehydes and nitrogen oxides contained in the air even before reaching the photocatalytic filter 43. Have the ability to

  Here, the air that passes in the vicinity of the streamer discharge electrode 70 is once cleaned in the prefilter 41, the plasma ionization unit 42, the photocatalytic filter 43, and the plasma catalytic filter 44. For this reason, it is possible to prevent dust collection, ammonium nitrate, and the like from adhering to the terminal portion of the streamer discharge electrode 70. Thereby, streamer discharge can be generated stably.

  The active species generated from the streamer discharge unit 63 is supplied to the deodorization catalyst cartridge 49 through the four communication holes 72 and the deodorization opening BO (see FIGS. 10 and 12), as described above, and the deodorization catalyst cartridge 49 49 is reproduced. Specifically, the supplied active species are regenerated by decomposing the odor component adsorbed on the surface of the deodorization catalyst cartridge 49 and improving the adsorption capability of the odor component by the deodorization catalyst cartridge 49.

  In this way, the bypass air flow F2 containing the active species passes through the bypass air flow path, is provided in front and rear of the prefilter 41, and acts on the dust or the like attached to the prefilter 41 to be cleaned. be able to.

  The air containing the active species passes between the ionization line 66 and the counter electrodes 21 and 22 and passes through the photocatalytic filter 43. At this time, dust or the like charged when passing through the plasma ionization unit 42 is adsorbed by the electrostatic filter. The titanium apatite-carrying filter adsorbs dust or the like that has passed through the electrostatic filter. At this time, the photocatalytic function of the titanium apatite is activated by the active species supplied from the streamer discharge unit 63, and thus viruses and molds are activated. Fungi, bacteria, etc. can be inactivated or killed.

  Further, in the plasma catalyst filter 44, viruses and bacteria in the air that have not been adsorbed by the photocatalyst filter 43 are adsorbed, and these bacteria and viruses are activated by titanium dioxide activated by air containing active species. Is killed or inactivated.

  Here, when the air cleaner 1 is executing the air cleaning operation mode (see FIGS. 3 and 6), as described above, the flap 12C is in the “open” state and the air outlet 12 is open. Therefore, the main air flow F1 that passes through the plasma catalyst filter 44 and is further purified by the active species is blown out from the outlet 12 into the room. Further, a part of the air that has passed through the plasma catalyst filter 44 flows as a bypass air flow F2 toward the bypass air flow path without being blown into the room, and this is repeated.

  Further, when the air cleaner 1 is executing the internal cleaning operation mode (see FIGS. 4 and 8), as described above, the flap 12C is in the “closed” state and the air outlet 12 is closed. The main air flow F1 that is formed with the circulation flow path and is further purified by the active species through the plasma catalyst filter 44 is not blown out into the room from the air outlet 12 toward the bypass air flow path. The air flows as a bypass air flow F2 and is circulated again as a circulation air flow F3 flowing through the circulation flow path. Here, the air circulating again in the circulation channel is not only reduced in viruses and fungi by the photocatalyst filter 43 and the like, but also has been killed or inactivated by the active species in the plasma catalyst filter 44. The degree of cleanliness is more advanced than when it passes. Thus, in the internal cleaning operation mode, the degree of cleanliness improves each time it circulates, and the rate of decomposition by active species is faster than the rate of adsorption of odorous components in the deodorizing catalyst cartridge 49, and the deodorizing catalyst cartridge 49 The degree of reproduction will improve. In the internal cleaning operation mode, as in the regeneration of the deodorizing catalyst cartridge 49, the active species are also present in each part of the prefilter 41, the plasma ionization unit 42, the photocatalytic filter 43, and the plasma catalytic filter 44 constituting the air cleaning unit 40. Whenever it is supplied and circulated, highly clean air flows and the degree of regeneration improves.

<Characteristics of the air cleaner 1 of the present embodiment>
In this air purifier 1, the user can operate the operation panel 54 a or the remote controller 54 b to select and input either the air cleaning operation mode or the internal cleaning operation mode, and the control unit 50 can be automatically operated by the flap opening / closing unit 51. The flap 12C is rotated to open and close the air outlet 12. Thereby, it is possible to automatically switch between a case where it is desired to clean the room air and a case where it is desired to clean the interior of the air purifier 1 by a simple operation.

<Modified example of air cleaner of this embodiment>
(A)
In the air cleaner 1 of the said embodiment, the structure provided with the flap 12C which can open and close the blower outlet 12 was mentioned as an example, and was demonstrated.

  However, the present invention is not limited to this. For example, as shown in FIG. 19, not only the air outlet 12 but also the flap 13C that can open and close the lower air inlet 13 and the side air inlet 14 can be opened and closed. Each of the flaps 14C may be provided.

  Thus, in the internal cleaning operation mode, the blower outlet 12 is closed with the flap 12C, the lower suction port 13 is closed with the flap 13C, and the side suction port 14 is closed with the flap 14C, so that not only the blowout but also the suction is closed. Thus, the active species can be circulated with the circulation air amount being substantially constant only by the circulation flow path inside the air purifier 1.

  As a result, the internal clean operation mode can be efficiently executed in the circulation channel with improved hermeticity without the dirty air in the target space being taken into the circulation channel. Furthermore, since the amount of air to be cleaned is constant, internal cleaning can be performed more efficiently.

(B)
In the flap 12C of the air cleaner 1 of the above embodiment, the structure that is disposed outside the air outlet 12 and that opens and closes the air outlet 12 by rotating around one end surface has been described as an example.

  However, the present invention is not limited to this. For example, the air outlet 12 may be opened and closed by sliding in the surface direction of the flap instead of opening and closing by rotation. Moreover, arrangement | positioning of the flap 12C is not restricted to the outer side of the blower outlet 12, For example, you may arrange | position to the inner side of the blower outlet 12. FIG.

(C)
In the air cleaner 1 of the said embodiment, the case where the deodorizing catalyst cartridge 49 was arrange | positioned near a circulation flow path, and reduced an odor component was mentioned as an example, and was demonstrated.

  However, the present invention is not limited to this, and instead of the deodorizing catalyst cartridge 49, for example, an antioxidant cartridge for supplying an antioxidant into the air may be mounted in the cartridge housing portion B2. Good. Here, the pre-filter 41, the plasma ionization unit 42, the photocatalyst filter 43, and the plasma catalyst filter 44 that constitute the air purification unit 40 are performed by performing an operation of circulating the circulation flow path as in the internal cleaning operation mode in the above embodiment. An antioxidant can be supplied to each part of the above. As a result, when the internal cleaning operation mode is canceled and the air cleaning operation mode is set, not only the indoor air is cleaned by releasing the carried antioxidant, but also from the air outlet 12 to the room. An antioxidant can be effectively contained in the air blown out. Even when the carried antioxidant is decreased, the antioxidant can be resupplied again by executing the internal cleaning operation mode by effecting a new cartridge again.

  Examples of antioxidants here include vitamins containing vitamin E such as d-α-tocopherol, gamma-aminobutyric acid, theanine (Nγ-ethyl L-glutamine, γ- (ethylamide) L-glutamic acid), and the like. These may be amino acids, polyphenols such as catechin (3-hydroxyflavanone), antioxidants such as proanthocyanidins, and the like.

  Further, it is not limited to antioxidants, but is a substance useful to the human body, and can be carried by the prefilter 41, the photocatalyst filter 43, the plasma catalyst filter 44, etc. of the air cleaner 1, and in the air cleaning operation mode. Ingredients that can be released in such a case may be employed.

  Further, here, when the internal cleaning operation mode is executed so that a substance beneficial to the human body such as vitamins as described above is carried on the prefilter 41, the photocatalyst filter 43, the plasma catalyst filter 44, etc. of the air cleaner 1. May stop the generation of active species temporarily by stopping the supply of power to the streamer discharge unit 63 during the internal cleaning operation mode. As a result, it is possible to avoid a situation in which the above-mentioned substance beneficial to the human body is killed by the active species that are generated.

(D)
In the air cleaner 1 of the above embodiment, the case where the active species is supplied to the front and the rear of the prefilter 41 has been described as an example.

  However, the present invention is not limited to this. For example, the present invention may be provided only behind the pre-filter 41, or after the plasma ionization unit 42, to obtain the effect of stable generation of active species. Can do.

(E)
The present invention is not limited to this, and for example, a deodorizing filter that adsorbs active species may be disposed, and a bioantibody filter may be disposed as an option downstream thereof. Thereby, the deodorizing filter can function while keeping the bioantibody alive while decomposing the odor component by adsorbing the active species.

(F)
In the air cleaner 1 of the above embodiment, a part of the air that is about to flow out from the vicinity of the air outlet 12 is supplied to the streamer discharge unit 63 through the opening of the unit storage portion B as a bypass air flow F2. Explained with an example.

  However, the present invention is not limited to this. For example, as shown in FIG. 20, the air flow from the blower fan 31 is directly transmitted to the unit storage portion B separately from the passage from the blower fan 31 toward the blower outlet 12. Further, an extension passage D that can be supplied to the streamer discharge unit 63 may be adopted.

(G)
In the air cleaner 1 of the said embodiment, the ventilation fan 31 demonstrated and demonstrated as an example the case where one ventilation fan 31 is arrange | positioned in the most downstream side of the vicinity of the blower outlet 12. FIG.

  However, the present invention is not limited to this. For example, the arrangement of the blower fan 31 may be an arrangement in which both the main air flow F1 and the bypass air flow F2 of the above-described embodiment are formed. For example, you may make it arrange | position between any of the pre filter 41 which comprises the air purifying unit 40, the plasma ionization part 42, the photocatalyst filter 43, and the plasma catalyst filter 44. FIG.

  Further, the number of the blower fans 31 is not limited to one, and a configuration in which two blower fans, mainly for forming the main air flow F1, and a blower fan for mainly forming the bypass air flow F2, are provided. It is good. In this case, the blower fan that generates the bypass air flow F2 may be arranged to forcibly generate the bypass air flow F2 in the middle of the bypass air flow path.

  If the present invention is used, since the maintenance of the internal air quality improvement function can be easily performed in the configuration capable of operating to improve the air quality, the air provided with the air quality improvement function member that needs to be regenerated in particular. Useful in purifiers.

It is an appearance perspective view of an air cleaner concerning an embodiment of the present invention. It is an external appearance perspective view of an air cleaner in the state where a front panel was removed. It is an external appearance perspective view of the back side in the driving state where a flap is open. It is an external appearance perspective view of the back side in the stop and internal cleaning state in which the flap is closed. It is a figure which shows the position of the fan of an air cleaner. It is explanatory drawing of the air cleaning by a main air flow and a bypass air flow. (A) It is a front view which shows a main air flow path and a bypass air flow path.

          (B) It is a side view which shows a main air flow path and a bypass air flow path.

(C) It is a top view which shows a main air flow path and a bypass air flow path.
It is explanatory drawing of the internal cleaning by a circulating air flow. (A) It is a front view which shows a circulating air flow path.

          (B) It is a side view which shows a circulating air flow path.

(C) It is a top view which shows a circulating air flow path.
It is a block diagram of a unit storage part. It is an external appearance perspective view of a streamer discharge unit. It is a top view sectional view of a streamer discharge unit. It is a back perspective view of a plasma ionization part. It is a top view of a plasma ionization part. It is a front view when a pre-filter is attached to the plasma ionization unit. It is a principal part enlarged view of a pre filter. It is a principal part enlarged view of a plasma ionization part. It is a block diagram regarding a control part. It is a figure which shows the flap of the air cleaner which concerns on a modification (A). It is a figure which shows the extension channel | path which concerns on a modification (F).

DESCRIPTION OF SYMBOLS 1 Air cleaner 12 Outlet 13 Lower suction port 14 Side suction port 31 Blower fan 40 Air purification unit 41 Prefilter 41a Filter part 41b Partition passage part 41O Hole 42 Plasma ionization part 42 Photocatalytic filter 44 Plasma catalyst filter 63 Streamer discharge unit

Claims (6)

An air purifier (1) for purifying by passing air in a target space,
A first flow path connecting an upstream suction port (13, 14) for sucking air from the target space and a downstream outlet (12) for blowing air to the target space;
A second flow path connecting the upstream space in the first flow path and the downstream space in the first flow path and downstream of the upstream space;
While forming a first air flow from the upstream side toward the downstream side in the first flow channel (F1), a second air flow toward the upstream space from the downstream space in the second flow channel and (F2) A blowing section (31) to be formed;
A closed state in which a circulation channel is formed by at least a part of the first channel and the second channel by closing the outlet (12); and an open state in which the outlet (12) is not closed ; and capable of changing the blowing wind shield portion (12C),
An air quality changing section (41, 43, 44 ) which is disposed between at least the upstream space and the downstream space in the first flow path and changes the air quality in the vicinity by receiving supply of active species. ,
An action part (63) for generating active species in the second flow path in order to supply active species to the air quality changing part (41, 43, 44 ) ;
Equipped with a,
When the blowout wind shield (12C) is in an open state, air blows out from the blowout port (12),
When the blowout wind shield (12C) is in the closed state, the air blown out from the blowout port (12) is blocked,
The second air flow is formed by the air blowing part (31) regardless of whether the blowout wind shielding part (12C) is in the closed state or the open state.
Air purifier (1). The action part (63) is disposed at least at the second flow path or at a position spatially continuous with the second flow path,
The air cleaner (1) according to claim 1 . The air quality change unit (44 ) has a function of adsorbing odor components, and decomposes the odor components by receiving the supply of active species.
The air cleaner (1) according to claim 1 or 2. The air quality change unit has an antioxidant supply function,
The action part supplements the antioxidant supply function of the air quality changing part by releasing the antioxidant to the air in the circulation channel,
The air cleaner (1) according to any one of claims 1 to 3 . A reception unit (54a, 54b) for receiving predetermined information on the state of the blowing windbreak unit;
Based on the information received by the receiving units (54a, 54b), the control unit (50) that sets the state of the blowing wind-shielding unit (12C) to the closed state or the open state ;
Further equipped with,
The air cleaner (1) according to any one of claims 1 to 4 . Suction wind shield part capable of changing between a closed state in which the suction port (13 , 14) is closed to shield the first air flow (F1) and an open state in which the suction port (13, 14) is opened. (13C, 14C)
The air cleaner (1) according to any one of claims 1 to 5 .

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