JP5088360B2 - Discharge unit and air conditioner - Google Patents

Description

  The present invention relates to a discharge unit and an air conditioner that can be attached to an air conditioner body.

  Conventionally, various air conditioners having a function of decomposing harmful substances such as viruses, bacteria, and molds contained in indoor air have been proposed. For example, Patent Literature 1 discloses an air conditioner including a negative ion generator that detects 1,000,000 ions / cc or more of negative ions at a distance of 1 m from a blower outlet. Patent Document 2 discloses a casing having a ventilation path, a sirocco fan disposed in the ventilation path, and a blower side of the sirocco fan in the ventilation path. An air conditioner is disclosed that includes an ion generator having an emission surface for emitting ions.

JP 2007-107809 A JP-A-2005-76906

  In general, active species such as positive ions and negative ions are released by causing discharge in an ion generator, but the released active species include a small amount of ozone. Since this ozone has a strong oxidizing power, it goes without saying that the ozone concentration in the air blown into the room from the air conditioner should be controlled to a predetermined value or less.

  However, since ozone has a unique odor, the odor may be generated even when it is contained in a very small amount in the air blown into the room from the air conditioner.

  Therefore, the present invention has been made in view of such a point, and the object of the present invention is to provide a discharge unit that can suppress the generation of an odor of ozone and can be attached to an air conditioner body, and ozone. An object of the present invention is to provide an air conditioner that can suppress the generation of odor.

  The present invention relates to a discharge unit that can be mounted on an air conditioner body (13) having a fan (11). This discharge unit is capable of supplying the air conditioner body (13) with air in which at least a part of harmful substances is inactivated in the mounted state of the air conditioner body (13). The discharge unit includes a frame (15), a discharge device (17), and a baffle plate (19). The frame (15) has an upstream opening (15a) on the air suction side, and a downstream opening (15b) on the side that blows out the air and supplies the air to the air conditioner body (13). Have. The discharge device (17) causes a discharge to flow through the air flow path (15c) in the frame (15) from the upstream opening (15a) to the downstream opening (15b). The active species can be released into the air. The baffle plate (19) is provided on the air flow path containing the active species in the air flow path (15c) on the downstream side of the discharge device (17).

  In this configuration, since the baffle plate (19) is provided on the air flow path containing the active species in the air flow path (15c) on the downstream side of the discharge device (17), the downstream opening The air flowing through the air flow path (15c) toward (15b) flows so as to avoid the baffle plate (19).

  Therefore, compared to the case where the baffle plate (19) is not provided, in this configuration, the air included in the active species is disturbed in the flow thereof, so that the air is well mixed with the surrounding air. As a result, the active species contained in the air flowing through the air flow path (15c) diffuses to the surroundings, so that the concentration variation of the active species in the air flowing through the air flow path (15c) is reduced. Therefore, compared with the case where the baffle plate (19) is not provided, the active species concentration of the air blown out from the air outlet (21b) of the air conditioner body (13) is made more uniform. Odor due to ozone, which is a kind of species, can be reduced.

  The discharge unit further includes a filter (23) disposed in the air flow path (15c) and capable of collecting a decomposition target contained in air flowing through the air flow path (15c). The device (17) may be arranged to face the filter (23) so that the active species can be supplied to the filter (23).

  In this configuration, since the active species can be supplied from the discharge device (17) to the filter (23) that collects the decomposition target, the decomposition target is not compared with the case where the filter (23) is not provided. The efficiency of decomposition can be increased.

  The fan (11) may have a fan suction port (11a), and the baffle plate (19) may be disposed so as to face the fan suction port (11a) in the mounted state.

  In this configuration, the baffle plate (19) is disposed so as to face the fan suction port (11a) of the fan (11). In this case, the air containing the active species flows through the air flow path (15c) so as to avoid the baffle plate (19) provided to face the fan suction port (11a), so that it mixes well with the surrounding air. Then, the air is sucked into the fan suction port (11a). Thus, the air containing the active species is reduced in concentration variation of the active species before being sucked into the fan suction port (11a), and is then sucked into the fan (11) and discharged from the outlet (21b). .

  The air conditioner body (13) has a plurality of the fans (11) arranged along the suction ports (21a), and the plurality of fans (11) are arranged in the arrangement direction (A). If the fan suction port (11a) includes at least two fans (11) facing each other in the arrangement direction (A), the obstacle The plate (19) may be arranged so as to face the region between the two fans (11) in the mounted state.

  In the case of the centrifugal fan in which each fan suction port (11a) is arranged in the arrangement direction (A), the fan suction port (11a) is viewed from the air flow direction as compared with the case where the fan suction port is directed to the upstream side of the air flow. In this case, the arrangement of the fan suction port (11a) becomes local. Specifically, for example, the fan suction port faces the upstream side of the air flow, like a cross flow fan in which the axial direction of the rotation shaft of the impeller is arranged along the suction port of the air conditioner body, and Compared with the case where the fan suction port is provided over almost the entire width of the suction port of the air conditioner main body, the air flow is biased in the centrifugal fan (11) arranged as described above. It becomes easy.

  Therefore, in this configuration, the baffle plate (19) is disposed so as to face the region between the two fans (11). Therefore, the air containing the active species flows through the air flow path (15c) so as to avoid the baffle plate (19), so that the air flow is disturbed around the baffle plate (19) and is well mixed with the surrounding air. Fit. Moreover, the air containing the active species is dispersed in at least two directions by the baffle plate (19). As a result, air containing active species is guided to the two fans (11), respectively, so that air with a relatively high concentration of active species is prevented from being attracted to one of the two fans (11). can do.

  Further, the discharge device (17) may include a discharge portion (7) that discharges the active species, and the baffle plate (19) may be disposed to face the discharge portion (7).

  In this configuration, since the baffle plate (19) is arranged to face the discharge part (7), even if the discharge part (7) is locally arranged in the discharge device (17), the discharge part ( The air containing the active species released from 7) flows so as to avoid the baffle plate (19) by being blocked by the baffle plate (19) immediately after the active species are released from the discharge portion (7). Thus, the active species can be diffused into the surrounding air immediately after being released from the emission part (7).

  The baffle plate (19) may be arranged between the discharge device (17) and the filter (23).

  In this configuration, since the baffle plate (19) is disposed between the discharge device (17) and the filter (23), the active species reach the filter (23) after being diffused by the baffle plate (19). . Thereby, the dispersion | variation in the active species density | concentration of the air which passes a filter (23) becomes small in the surface direction of a filter (23). Thereby, since an active species can be spread over a wider range of the filter (23), the sterilization effect by the active species can be further enhanced.

  The air conditioner of the present invention includes a casing (21) having an inlet (21a) and an outlet (21b), and air in the casing (21) from the inlet (21a) to the outlet (21b). It has at least one fan (11) that creates an air flow in the flow path (21c), a discharge device (17), and a baffle plate (19). The discharge device (17) is disposed in the air flow path (21c) on the upstream side of the fan (11), and generates an active species in the air flowing through the air flow path (21c) by causing discharge. Can be released. The baffle plate (19) is a downstream side of the discharge device (17) and an upstream side of the fan (11) in the air flow path (21c). It is provided on the street.

  In this configuration, since the baffle plate (19) is provided in the air flow path (21c) downstream of the discharge device (17) and upstream of the fan (11), the fan (11) The air flowing through the air flow path (21c) flows so as to avoid the baffle plate (19).

  Therefore, in this configuration, compared with the case where the baffle plate (19) is not provided, the air included in the active species is disturbed in the flow thereof, so that it mixes well with the surrounding air. Thereby, the active species contained in the air flowing through the air flow path (21c) diffuses to the surroundings, so that the concentration variation of the active species in the air flowing through the air flow path (21c) is reduced. Therefore, compared with the case where the baffle plate (19) is not provided, the active species concentration of the air blown out from the air outlet (21b) is made more uniform, resulting in ozone being a kind of active species. Odor can be reduced.

  The air conditioner is disposed in the air flow path (21c) on the upstream side of the fan (11), and is capable of collecting an object to be decomposed contained in the air flowing through the air flow path (21c). The discharge device (17) may be arranged to face the filter (23) so as to be able to supply the active species to the filter (23).

  In this configuration, since the active species can be supplied from the discharge device (17) to the filter (23) that collects the decomposition target, the decomposition target is not compared with the case where the filter (23) is not provided. The efficiency of decomposition can be increased.

  The fan (11) may have a fan suction port (11a), and the baffle plate (19) may be disposed to face the fan suction port (11a).

  In this configuration, the baffle plate (19) is disposed so as to face the fan suction port (11a) of the fan (11). In this case, the air containing the active species flows through the air flow path (21c) so as to avoid the baffle plate (19) provided to face the fan suction port (11a), so that it mixes well with the surrounding air. Then, the air is sucked into the fan suction port (11a). Thus, the air containing the active species is reduced in concentration variation of the active species before being sucked into the fan suction port (11a), and is then sucked into the fan (11) and discharged from the outlet (21b). .

  Also, a plurality of the fans (11) are provided, these are arranged along the suction port (21a), and the plurality of fans (11) are fan suction ports facing in the arrangement direction (A). (11a), when the fan suction port (11a) includes at least two fans (11) facing each other in the arrangement direction (A), the baffle plate (19) It may be arranged at a position upstream of the region between the two fans (11) and at a position facing the region.

  As described above, in the case of the centrifugal fan in which each fan suction port (11a) is arranged in the arrangement direction (A), the air is compared with the case where the fan suction port is directed upstream of the air flow. When viewed from the flow direction, the arrangement of the fan suction ports (11a) is local. Therefore, in the case of the centrifugal fan (11) arranged as described above, the air flow tends to be biased.

  Therefore, in this configuration, the baffle plate (19) is disposed so as to face the region between the two fans (11). Therefore, the air containing the active species flows through the air flow path (21c) so as to avoid the baffle plate (19), so that the air flow is disturbed around the baffle plate (19) and is well mixed with the surrounding air. Fit. Moreover, the air containing the active species is dispersed in at least two directions by the baffle plate (19). As a result, air containing active species is guided to the two fans (11), respectively, so that air with a relatively high concentration of active species is prevented from being attracted to one of the two fans (11). can do.

  Further, the discharge device (17) may include a discharge portion (7) that discharges the active species, and the baffle plate (19) may be disposed to face the discharge portion (7).

  In this configuration, since the baffle plate (19) is arranged to face the discharge part (7), even if the discharge part (7) is locally arranged in the discharge device (17), the discharge part ( The air containing the active species released from 7) flows so as to avoid the baffle plate (19) by being blocked by the baffle plate (19) immediately after the active species are released from the discharge portion (7). Thus, the active species can be diffused into the surrounding air immediately after being released from the emission part (7).

  The baffle plate (19) may be disposed between the discharge device (17) and the filter (23).

  In this configuration, since the baffle plate (19) is disposed between the discharge device (17) and the filter (23), the active species reach the filter (23) after being diffused by the baffle plate (19). . Thereby, the dispersion | variation in the active species density | concentration of the air which passes a filter (23) becomes small in the surface direction of a filter (23). Thereby, since an active species can be spread over a wider range of the filter (23), the sterilization effect by the active species can be further enhanced.

  As described above, according to the present invention, a discharge unit that can suppress the generation of ozone odor, can be mounted on the air conditioner body, and an air conditioner that can suppress the generation of ozone odor. Can be provided.

It is a disassembled perspective view which shows the air conditioner concerning 1st Embodiment of this invention. In the said air conditioner, it is a bottom view for demonstrating the positional relationship of a fan, a discharge device, and a baffle plate. It is the III-III sectional view taken on the line of FIG. (A) is a bottom view which shows an example of a baffle plate, (b) is BB sectional drawing of (a). (C) is a bottom view which shows the other example of the said baffle plate, (d) is DD sectional view taken on the line of (c). (E) is a bottom view which shows the further another example of the said baffle plate, (f) is FF sectional view taken on the line of (e). (A) is a disassembled perspective view which shows the said discharge apparatus of the state which removed the cover, (b) is the top view, (c) is sectional drawing which shows the said discharge apparatus with which the cover was attached. . (A) is a side view of a streamer discharge electrode, a ground plate, and an insulating plate in the discharge device, and (b) is a front view of these members. It is the perspective view which expanded the edge part vicinity of the said discharge device. (A) is the schematic for demonstrating the positional relationship of the fan in 1st Embodiment, a discharge device, and a baffle plate, (b) is the schematic which shows the form which excluded the baffle plate from (a). is there. It is a bottom view which shows the air conditioner concerning 2nd Embodiment of this invention. It is the schematic for demonstrating the positional relationship of the baffle plate and discharge part in the air conditioner of 2nd Embodiment, (a) is a figure when seeing the said baffle plate and the said discharge part from the upper side. (B) is a figure when the said baffle plate and the said discharge part are seen from the back side. (C) And (d) is a figure which shows the modification of (a) and (b). It is sectional drawing which shows the air conditioner concerning 3rd Embodiment of this invention. It is sectional drawing which shows the air conditioner concerning 4th Embodiment of this invention. (A) is the schematic which shows the positional relationship when the two fans, discharge device, and baffle plate in 4th Embodiment are seen from the upstream opening part side, (b) is the modification. It is a bottom view which shows the air conditioner concerning 5th Embodiment of this invention. It is the XV-XV sectional view taken on the line of FIG. It is sectional drawing which shows the air conditioner concerning 6th Embodiment of this invention.

  Hereinafter, an air conditioner according to an embodiment of the present invention will be described in detail with reference to the drawings.

<First Embodiment>
(Overall configuration of air conditioner)
As shown in FIGS. 1 to 3, the air conditioner 31 according to the first embodiment is a ceiling-suspended indoor unit that is used for air conditioning and is suspended from an indoor ceiling. The air conditioner 31 includes an air conditioner body 13 and a discharge unit 33 attached to the air conditioner body 13. 2, illustration of some members, such as the filters 23 and 41, is omitted in order to explain the positional relationship between the fan 11, the discharge device 17, and the baffle plate 19.

  The discharge unit 33 may be shipped in a state of being mounted on the air conditioner body 13 at the time of manufacture, or may be mounted on the air conditioner body 13 at the installation site. In the latter case, the discharge unit 33 can be mounted (retrofitted) on an existing air conditioner body 13 already installed in a house, a building, or the like.

  In addition, in this 1st Embodiment, although the discharge unit 33 can be attached or detached with respect to the air conditioner main body 13, the discharge unit 33 and the air conditioner main body 13 cannot be attached or detached integrally like 6th Embodiment mentioned later. Form may be sufficient.

(Air conditioner body)
As shown in FIGS. 1 to 3, the air conditioner body 13 includes a body casing 21, four fans 11, a heat exchanger 45, and the like.

  The main body casing 21 includes a bottom plate 21d, a top plate 21e, a back plate 21f, and a pair of side plates 21g. An air inlet 21a is provided on the back side of the bottom plate 21d. The peripheral edge of the downstream opening 15b of the frame 15 of the discharge unit 33, which will be described later, is fitted into the suction port 21a. Further, an air outlet 21 b is provided in a front side portion of the main body casing 21.

  As shown in FIG. 1, the suction port 21 a has a length in the width direction larger than a length in the depth direction, and is formed over substantially the entire width direction of the air conditioner body 13. The blower outlet 21b has a length in the width direction larger than a length in the height direction, and is formed over almost the entire region of the air conditioner body 13 in the width direction. A flap 21h for adjusting the direction of the air blown from the blower outlet 21b is attached to the blower outlet 21b. The flap 21h is rotatably supported on the rotation shaft 21j. The rotating shaft 21j is supported by side plates 21g on both sides of the main body casing 21.

  In the present embodiment, a sirocco fan, which is a type of centrifugal fan, is used as the fan 11. Each fan 11 is disposed in a space on the back side of the main casing 21 and is located above (directly above) the suction port 21a. These fans 11 have air in an air flow path 15c in the frame body 15 extending from the upstream opening 15a to the downstream opening 15b and in an air flow path 21c in the main body casing 21 extending from the suction port 21a to the air outlet 21b. Create a flow of

  Each fan 11 has an impeller 11b having a rotating shaft 11c and a spiral fan case 11d that accommodates the impeller 11b. The impeller 11b has a plurality of blades 11e provided along the circumferential direction of the rotating shaft 11c. The fan case 11d has a fan suction port 11a that opens substantially circularly at positions on both sides in the axial direction of the rotating shaft 11c, and a fan discharge port 11f that opens at a position radially outward of the impeller 11b. The fan discharge port 11f opens toward the air outlet 21b side of the main body casing 21. The rotating shaft 11c is connected to a motor (not shown).

  As shown in FIGS. 1 and 2, the four fans 11 (111 to 114) are arranged in a row in the width direction along the suction port 21 a of the air conditioner body 13. The fan suction ports 11 a of the four fans 11 are open toward the arrangement direction A of the fans 11. The fan suction ports 11a of the adjacent fans 11 are opposed along the arrangement direction A.

  Each fan 11 sucks air into the fan case 11d through the fan suction port 11a when a motor (not shown) connected to the rotating shaft 11c is driven. The sucked air is sent along the circumferential direction in the spiral fan case 11d and discharged from the fan discharge port 11f.

  The heat exchanger 45 is disposed in a space on the front side of the main casing 21 (a space between the fan 11 and the air outlet 21b). A drain pan 49 is provided below the heat exchanger 45. The heat exchanger 45 has a flat shape extending in the width direction and the height direction of the main casing 21 and having a thickness smaller than the width and height. The heat exchanger 45 is disposed so as to be inclined with respect to the vertical direction so that the lower edge portion thereof is located closer to the back plate 21f side (fan 11 side) than the upper edge portion.

(Discharge unit)
Next, the discharge unit 33 will be described. The discharge unit 33 can decompose harmful substances in the air flowing through the air flow path 15c by the active species released by causing streamer discharge. The streamer discharge is a discharge form capable of generating a strong discharge over a wide area of the discharge space, and has a feature that the decomposition effect of harmful substances is higher than other discharge forms.

  The active species to be released include electrons, ions, radicals, ozone and the like. This active species decomposes these harmful substances by coming into contact with harmful substances (degradable substances) such as viruses, bacteria, and molds contained in the air.

  As shown in FIG. 1, the discharge unit 33 includes a frame 15, a pair of electrostatic filters 23, a pair of discharge devices 17, a pair of support frames 51 that respectively support the discharge devices 17, and a pair of pre-sets. A filter 41 and a baffle plate 19 are provided.

  The frame 15 has four long frame members 151 to 154 combined in a square shape so that an air flow path 15c described later is formed inside. The frame 15 has an upstream opening 15a and a downstream opening 15b having an opening area comparable to the suction port 21a of the air conditioner body 13. The upstream opening 15 a serves as an air inlet for sucking air, and the downstream opening 15 b serves as an air outlet for blowing out air and supplying the air to the air conditioner body 13.

  The frame 15 has a support member 155 that extends in the front-rear direction and bisects the air flow path 15 c in the width direction. The column member 155 is bridged between the frame member 151 and the frame member 153. An insulator 61 of each discharge device 17 described later is connected to the column member 155 (FIG. 2).

  An electrical component incorporating a high-voltage power supply unit that supplies power to the discharge device 17 at one end in the width direction of the space surrounded by the frame members 151 to 154 (the left end in the width direction in FIG. 2). A product box 53 is provided. In the frame 15, the pre-filter 41, the support frame 51 that supports the discharge device 17, the electrostatic filter 23, and the baffle plate 19 are arranged in this order from the upstream opening 15 a toward the downstream opening 15 b. ing.

  Each prefilter 41 is coarser than the electrostatic filter 23 described later, and plays a role of capturing dust and the like contained in the air flowing through the air flow path 15c. Examples of the prefilter 41 include a net-like member made of a polymer material or the like. A cover (not shown) that covers the prefilter 41 is attached to the lower side of the frame 15. This cover has a plurality of unillustrated slits through which air passes.

  Each electrostatic filter 23 is supported by a rectangular filter frame 23a. Each filter frame 23 a is supported by frame members 151 to 155 so that each electrostatic filter 23 closes each of the air flow paths 15 c divided by the support member 155.

  Each electrostatic filter 23 is finer than the pre-filter 41 and supplements harmful substances such as viruses, bacteria, and molds contained in the air flowing through the air flow path 15c. The electrostatic filter 23 also captures part of the dust that has passed through the pre-filter 41. As the electrostatic filter 23, for example, a sheet (for example, a nonwoven fabric) formed of a polymer material fiber or the like is bent into a pleat shape.

  A pair of support frames 51 that respectively support the respective discharge devices 17 are disposed between the pre-filter 41 and the electrostatic filter 23. Specifically, the support frame 51 located on the left side of FIG. 1 is disposed between the pre-filter 41 and the electrostatic filter 23 located on the left side, and the support frame 51 located on the right side is pre-positioned on the right side. It is arranged between the filter 41 and the electrostatic filter 23.

  Each support frame 51 includes four frame members 51a to 51d combined in a quadrangular shape and a column member 51e extending in the depth direction and spanning between the frame members 51a and 51c. This support member 51 e is for supporting one end of the discharge device 17 described later, and its mounting position is adjusted according to the length of the discharge device 17.

(Baffle plate)
As shown in FIGS. 4A and 4B, the baffle plate 19 in the present embodiment is a rectangular flat plate, but the shape of the baffle plate 19 is not limited to this. For example, as shown in FIGS. 4C and 4D, the baffle plate 19 may be formed by bending a flat plate into a V shape. In addition, as shown in FIGS. 4E and 4F, the baffle plate 19 is cut along the longitudinal direction of the flat plate, and cut along the width direction from both ends of the cut. It may be bent along a line connecting the end portions of the cuts in the width direction. Through this bending process, an opening 19 a is formed along the longitudinal direction of the baffle plate 19. Thereby, the air flow of the air flow path 15c can be finely adjusted.

  In the air flow path of the entire air conditioner 31 including the air flow path 15 c of the discharge unit 33 and the air flow path 21 c of the air conditioner main body 13 connected thereto, the baffle plate 19 is from the discharge device 17 and the electrostatic filter 23. Is located on the downstream side and upstream of the fan 11. The baffle plate 19 is disposed so that its longitudinal direction is substantially parallel to the electrostatic filter 23.

  As shown in FIGS. 2 and 3, the baffle plate 19 has one end in the longitudinal direction supported by the frame member 151 of the frame body 15 and extends toward the frame member 153. As shown in FIG. 2, the other end 19a of the baffle plate 19 extends to a position on the back side from the center in the front-rear direction (a direction perpendicular to the longitudinal direction of the suction port 21a) in the suction port 21a of the air conditioner body 13. It is installed. As shown in FIG. 2, when the fan 11 and the baffle plate 19 are viewed from the upstream opening 15 a side, one end of the baffle plate 19 is positioned on the front side (lower side in FIG. 2) of the rotation shaft 11 c of the fan 11. The other end 19a of the baffle plate 19 is located on the rear side (upper side in FIG. 2) of the rotating shaft 11c. 2 is an auxiliary line for indicating the position of the rotating shaft 11c of each fan 11. In FIG.

  In this 1st Embodiment, although the baffle plate 19 is supported by the frame 15 of the discharge unit 33, it is not limited to this. The baffle plate 19 may be supported by the main body casing 21 of the air conditioner main body 13 or the like.

(Discharge device)
Each discharge device 17 has an elongated rectangular shape when viewed from the bottom side. Each discharge device 17 is arranged in the air flow path 15c so that the longitudinal direction thereof is in the width direction of the discharge unit 33 (the left-right direction in FIG. 1). One end of one discharge device 17 (the right discharge device 17a in FIG. 1) is supported by being screwed to the right column member 51e, and the other end is supported by being screwed to the frame member 51b. One end of the other discharge device 17 (left discharge device 17b in FIG. 1) is supported by being screwed to the left column member 51e, and the other end is supported by being screwed to the frame member 51d.

  Each discharge device 17 generates a streamer discharge, thereby generating active species to be supplied to the electrostatic filter 23 and releasing it into the air flow path 15c. The site where the active species are released into the air flow path 15c in each discharge device 17 is a discharge portion 7 to be described later. This discharge portion 7 is located in the vicinity of the center in the longitudinal direction of each discharge device 17 and faces the fan 11 of each discharge device 17 (the surface on the opposite side of the position surrounded by a broken-line circle in FIG. 2). ).

  As shown in FIG. 5A to FIG. 6B, each discharge device 17 includes a discharge device case 69, a discharge portion 83, a discharge device side contact 71, and a contact attachment member 72.

  A discharge portion 83 and a contact attachment member 72 are attached to the discharge device case 69. The discharge device case 69 is a box-shaped member made of resin. The entire front surface of the discharge device case 69 is open and covers the rear, both sides, upper, and lower sides of the discharge portion 83. Hereinafter, the opening on the front surface of the discharge device case 69 is referred to as a “front opening 69a”. The front opening 69a faces downward when the discharge device 17 is attached to the air conditioner 31.

  As shown in FIG. 5C, the front opening 69 a is closed by a cover 64. Thereby, the discharge part 83 and the contact attachment member 72 are accommodated in the internal space S <b> 1 formed between the discharge device case 69 and the cover 64. The discharge device case 69 covers the periphery of the discharge part 83 together with the cover 64 to isolate the discharge part 83 from the air flow.

  A plurality of minute discharge holes 77 for discharging active species are provided in a substantially central portion in the longitudinal direction of the back surface of the discharge device case 69, that is, in the vertical direction. The plurality of discharge holes 77 are provided in the central portion of the discharge device case 69 in the longitudinal direction so as to form a discharge hole group (discharge part) 7.

  The discharge portion 83 is a main portion that causes streamer discharge, and includes a streamer discharge electrode 70, a ground plate 73, and an insulating plate 74.

  The streamer discharge electrode 70 is formed of a metal plate, and generates a streamer discharge with the ground plate 73 when a discharge voltage is applied. As shown in FIGS. 6A and 6B, the streamer discharge electrode 70 includes a plate-like portion 78 having a substantially rectangular outer shape, a plurality of protrusions 79 erected vertically to the plate-like portion 78, and And a discharge needle 80 provided at the tip of each projection 79.

  The protruding portions 79 are formed by vertically bending a part of the plate-like portion 78 cut out in a tongue shape, and two protruding portions 79 are arranged side by side in the longitudinal direction of the plate-like portion 78. The streamer discharge electrode 70 is connected to an intermediate portion in the longitudinal direction of the insulating plate 74, and is attached to the earth plate 73 via the insulating plate 74.

  The ground plate 73 is made of a metal plate and has a substantially rectangular outer shape larger than the streamer discharge electrode 70. The ground plate 73 is disposed in parallel to the streamer discharge electrode 70 and is disposed in proximity to the streamer discharge electrode 70. The ground plate 73 is located between the streamer discharge electrode 70 and the back surface of the discharge device case 69. The ground plate 73 is fixed to the discharge device case 69, and a metal ground contact 81 is attached thereto.

  The ground plate 73 has a plurality of minute holes 73 a in the vicinity of the portion of the streamer discharge electrode 70 facing the discharge needle 80. These holes 73 a are arranged so as to face a plurality of minute discharge holes 77 of the discharge device case 69, and active species generated by the discharge from the discharge needle 80 pass through the holes 73 a and the discharge holes 77. It is configured to be discharged to the outside of the discharge device 17.

  The insulating plate 74 is a member to which the streamer discharge electrode 70 and the earth plate 73 are attached, and functions as a spacer that holds the streamer discharge electrode 70 and the earth plate 73 at a slight distance. The insulating plate 74 is made of a highly insulating resin, thereby ensuring insulation between the streamer discharge electrode 70 and the ground plate 73.

  As shown in FIG. 6A, the insulating plate 74 has a shape in which both ends are folded back toward the ground plate 73 in a side view, and is connected to the ground plate 73 at both folded ends. More specifically, the insulating plate 74 extends from the streamer discharge electrode 70 along a second direction substantially orthogonal to the first direction connecting the streamer discharge electrode 70 and the ground plate 73 with the shortest distance, and then is folded back to be ground plate. 73. Here, the first direction is a direction perpendicular to the plate-like portion 78 of the streamer discharge electrode 70 and the earth plate 73, and the second direction is to the plate-like portion 78 of the streamer discharge electrode 70 and the earth plate 73. And parallel to the longitudinal direction of the plate-like portion 78 of the streamer discharge electrode 70 and the ground plate 73.

  The insulating plate 74 includes a first straight portion 74a, a second straight portion 74b, a first U-shaped portion 74c, a third straight portion 74d, and a second U-shaped portion 74e.

  The first linear portion 74a has a linear shape in a side view and is arranged in parallel with the second direction. An intermediate portion in the longitudinal direction of the first straight portion 74a is opposed to the streamer discharge electrode 70, and the streamer discharge electrode 70 is connected thereto. The first straight portion 74a has a stepped shape bent in three stages in a front view.

  The second linear portion 74b has a linear shape in a side view and is disposed in parallel with the second direction. The second straight portion 74 b is disposed closer to the ground plate 73 than the first straight portion 74 a in a side view, and one end thereof is connected to the end portion of the ground plate 73. The other end of the second straight part 74b is connected to the first straight part 74a via a first U-shaped part 74c.

  The first U-shaped portion 74c has a U-shape, and one end is connected to the first straight portion 74a and the other end is connected to the second straight portion 74b, whereby the first straight portion 74a and the second straight line are connected. The part 74b is connected.

  The third linear portion 74d has a linear shape in a side view and is disposed in parallel with the second direction. The third straight portion 74d is disposed closer to the ground plate 73 than the first straight portion 74a in a side view, and one end of the third straight portion 74d is the end to which the second straight portion 74b of the ground plate 73 is connected. Connected to the opposite end. The third straight part 74d is connected to the first straight part 74a via a second U-shaped part 74e.

  The second U-shaped portion 74e has a U-shape, and one end is connected to the first straight portion 74a and the other end is connected to the third straight portion 74d, whereby the first straight portion 74a and the third straight portion are connected. The part 74d is connected.

  As shown in FIGS. 5A and 5B, the discharge device side contact 71 is supported by a contact mounting member 72 and is provided along the longitudinal direction of the contact mounting member 72. The lower end of the discharge device side contact 71 is a contact point that comes into contact with the insulator 61 described later. The discharge device side contact 71 is in contact with the lower end of the streamer discharge electrode 70 via a contact attachment member 72. The discharge device side contact 71 transmits a discharge voltage from the power supply side contact to the streamer discharge electrode 70.

  The contact attachment member 72 is a member to which the discharge device side contact 71 is attached, and has a bar-like portion 72a that is long in the vertical direction and a partition plate portion 72b that intersects the rod-like portion 72a perpendicularly. The rod-like portion 72a is provided with a notch 72c into which the streamer discharge electrode 70 is inserted at one end, and a contact of the discharge device side contact 71 at the other end.

  The partition plate portion 72b is provided between one end and the other end of the rod-shaped portion 72a, and inside the discharge device case 69, a space in which the streamer discharge electrode 70, the ground plate 73, and the insulating plate 74 are disposed, The space between the contacts of the discharge device side contact 71 is arranged. Thereby, the contact of the discharge device side contact 71 is disposed in a space partitioned from the space in which the streamer discharge electrode 70, the ground plate 73 and the insulating plate 74 are disposed. The partition plate portion 72b is inserted into and fixed to a groove 69c provided on the inner surface of the discharge device case 69.

  As shown in FIG. 7, an insulator 61 is attached to the end of each discharge device 17. The insulator 61 is attached to the end of the discharge device 17 on the side where the discharge device side contact 71 is disposed. Each insulator 61 is attached to a column member 155 as shown in FIG.

(Air conditioner operation)
Hereinafter, the operation of the air conditioner 31 will be described.

  When the fan 11 of the air conditioner body 13 is driven, indoor air is sucked into the frame body 15 from the upstream opening 15 a of the discharge unit 33. The air sucked into the frame 15 first passes through the prefilter 41. At this time, relatively large dust and dust are removed from the air.

  The air that has passed through the prefilter 41 passes through a region surrounded by the support frame 51 and reaches the electrostatic filter 23. When air passes through the electrostatic filter 23, harmful substances such as viruses, bacteria, and mold are captured by the electrostatic filter 23 along with small dust and dust that have passed through the pre-filter 41.

  On the other hand, in the discharge device 17, streamer discharge occurs between the ground plate 73 and the discharge voltage applied to the streamer discharge electrode 70. When streamer discharge occurs, low-temperature plasma is generated in the discharge field, and active species are released into the air flow path 15 c through the plurality of discharge holes 77 provided in the discharge device case 69. The released active species ride on the air flow in the air flow path 15c and are supplied to the electrostatic filter 23 located on the downstream side.

  When the active species is supplied to the electrostatic filter 23, harmful substances captured by the electrostatic filter 23 are decomposed by the active species and are killed or inactivated. In the air conditioner 31, by generating a streamer discharge in the discharge device 17, a discharge field stronger than other plasma discharges such as a glow discharger and a barrier discharger is formed, and active species having a high energy level are generated. Can do. Therefore, harmful substances such as viruses can be efficiently decomposed.

  The air that has passed through the electrostatic filter 23 enters the main body casing 21 through the downstream opening 15b of the frame 15 and the suction port 21a of the main body casing 21, and is sucked into the fan case 11d from the fan suction port 11a of each fan 11. It is. The air travels in the fan case 11d along the circumferential direction and is discharged from the fan discharge port 11f. The discharged air is heat-exchanged with the refrigerant when passing through the heat exchanger 45, and then blown out into the room from the outlet 21b of the main casing 21.

  The above is the overall operation of the air conditioner 31. Next, features of the operation of the air conditioner 31 of the first embodiment will be described.

  In the air conditioner 31 of the first embodiment, since the baffle plate 19 is provided in the air flow path 15c as described above, a part of the air flowing through the air flow path 15c collides with the baffle plate 19 and the traveling direction thereof. Can be changed. Further, another part of the air flowing through the air flow path 15 c flows so as to avoid the baffle plate 19. As described above, the air flowing around the baffle plate 19 is disturbed in the flow, so that it mixes well with the surrounding air. Therefore, compared with the case where the baffle plate 19 is not provided, the active species concentration of the air blown from the air outlet 21b of the air conditioner body 13 is made more uniform, so ozone is a kind of active species. The resulting odor can be reduced.

  The flow of air containing active species will be described in detail as follows.

  FIG. 8A is a schematic diagram for explaining the positional relationship among the fan 11, the discharge device 17, and the baffle plate 19 in this embodiment in more detail and for explaining the flow of air containing active species. This figure shows the positional relationship of the fan 11, the discharge device 17, and the baffle plate 19 when the air conditioner 31 is viewed from the back side. FIG. 8B is a schematic diagram showing a form in which the baffle plate 19 is omitted from FIG.

  The arrows in FIGS. 8A and 8B indicate the flow from the discharge device 17 to the fan suction port 11a of the fan 11 from the air containing the active species. In addition, the arrows in these drawings are described only to those necessary for explaining the characteristics of the air flow including the active species discharged from the discharge portion 7 of the discharge device 17, and include the active species. The flow of air is not limited to the arrows in the figure.

  Further, a curve 100 indicated by a two-dot chain line and a curve 102 indicated by a solid line in FIG. 2 indicate the concentration distribution of ozone contained in the air blown from the outlet 21b in the air conditioner 31 of the present embodiment provided with the baffle plate 19. Represents. On the other hand, a curve 101 indicated by a one-dot chain line and a curve 102 indicated by a solid line in FIG. 2 represent the concentration distribution of ozone contained in the air blown out from the outlet 21b in the air conditioner 31 in the form of not providing the baffle plate 19. ing.

  First, a case where the baffle plate 19 is not provided (the configuration of FIG. 8B) will be described. 2 and 8B, the left discharge device 17a of the two discharge devices 17 is provided at a position facing the second fan 112 from the left, and the right discharge device 17b. Is provided at a position facing the third fan 113 from the left. Therefore, as indicated by a dashed-dotted curve 101 and a solid curve 102 in FIG. 2, the concentration of ozone contained in the air blown from the air outlet 21 b of the air conditioner 31 is different from that of the fan 112 and the fan 112. A peak is observed at a portion corresponding to 113. From this result, it can be seen that many of the active species contained in the air flowing through the air flow path 15 c are sucked from the fan suction port 11 a of the fan 112 and the fan suction port 11 a of the fan 113.

  2, the peak of the portion corresponding to the fan 112 is higher than the peak of the portion corresponding to the fan 113 among the two peaks of the dashed line curve 101 and the curve 102 indicated by the solid line (the peak shape is sharp). The reason for this is considered as follows. That is, the position of the discharge portion 7 of the discharge device 17 b facing the fan 113 is provided near the center of the fan 113 in the axial direction B, whereas the position of the discharge portion 7 of the discharge device 17 a facing the fan 112 is provided. Is shifted from the center in the axial direction B of the fan 112 to one side (left side in FIGS. 2 and 8B). Therefore, the air containing the active species discharged from the discharge part 7 of the discharge device 17b tends to be sucked in from the fan suction ports 11a on both sides in the axial direction of the fan 113 to some extent, whereas the air of the discharge device 17a A larger amount of the air containing the active species discharged from the discharge unit 7 is sucked from the fan suction port 11a on the left side in the axial direction of the fan 112. As a result, the peak position of the portion corresponding to the fan 112 is shifted to the left from the axial center of the fan 112, and the peak shape is sharp.

  On the other hand, in the present embodiment in which the baffle plate 19 is provided as shown in FIG. 2 and FIG. 8 (b), in FIG. 2, compared to the case of FIG. 8 (b) in which the baffle plate 19 is not provided. As indicated by a two-dot chain line curve 100, the peak shape of the portion corresponding to the fan 112 can be broadened to reduce the peak height. That is, in this embodiment, compared with the case of the form of FIG.8 (b), the density distribution of the ozone contained in the air which blows off from the blower outlet 21b can be made more uniform in the width direction of the blower outlet 21b. it can. The reason is considered as follows.

  In the form shown in FIG. 8B, the fan suction port 11 a closest to the discharge unit 7 is the fan suction port 11 a on the left side of the fan 112. Therefore, most of the air including the active species released from the discharge portion 7 of the discharge device 17a is sucked from the fan suction port 11a on the left side of the fan 112 along the air flow path K3. The amount of active species sucked from the fan suction port 11a of the fan 111 along the air flow path K4 is smaller than that of the flow K3.

  On the other hand, in the present embodiment shown in FIG. 8A, the baffle plate 19 is placed on the flow path (on the flow path K3 in FIG. 8B) from the discharge portion 7 of the discharge device 17a to the fan suction port 11a closest thereto. Is provided. Therefore, the air containing the active species discharged from the discharge portion 7 of the discharge device 17a flows in a branching manner mainly in two directions (left and right directions in FIG. 8) avoiding the baffle plate 19. As a result, the ratio of the air guided to the fan suction port 11a side of the fan 111 along the surface of the baffle plate 19 increases. That is, the ratio of air flowing along the flow path K2 is larger than the flow path K4 in FIG. 8B, and the ratio of air flowing along the flow path K1 is smaller than the flow path K3 in FIG. It is considered to be.

  Therefore, when the position of the discharge portion 7 is shifted to the one side from the center in the axial direction B with respect to the fan 11 as in the present embodiment, the baffle plate 19 has the fan suction closest to the discharge portion 7. It is preferably provided on the air flow path up to the mouth 11a. Thereby, the peak height of the ozone concentration contained in the air blown out from the outlet 21b can be effectively reduced.

  As described above, in the present embodiment, since the baffle plate 19 is provided on the air flow path containing the active species in the air flow path 15c downstream of the discharge device 17, it faces the downstream opening 15b. Thus, the air flowing through the air flow path 15 c flows so as to avoid the baffle plate 19. Therefore, as compared with the case where the baffle plate 19 is not provided, the air containing the active species is disturbed in the flow thereof, so that it mixes well with the surrounding air. As a result, the active species contained in the air flowing through the air flow path 15c diffuses to the surroundings, so that the concentration variation of the active species in the air flowing through the air flow path 15c is reduced. Therefore, compared with the case where the baffle plate 19 is not provided, the active species concentration of the air blown out from the air outlet 21b is made more uniform, thereby reducing the odor caused by ozone which is a kind of active species. be able to.

  Moreover, in this embodiment, since the active species can be supplied from the discharge device 17 to the filter 23 that has collected the substance to be decomposed, the efficiency of decomposing the substance to be decomposed compared with the case where the filter 23 is not provided. Can be increased.

  In the present embodiment, the baffle plate 19 is disposed so as to face the fan suction port 11 a of the fan 11. In this case, the air containing the active species flows through the air flow path 15c so as to avoid the baffle plate 19 provided to face the fan suction port 11a, so that the fan suction port 11a is mixed well with the surrounding air. Sucked in. As described above, the air containing the active species is reduced in concentration variation of the active species before being sucked into the fan suction port 11a, and then is sucked into the fan 11 and discharged from the outlet 21b.

  In the present embodiment, the baffle plate 19 is disposed so as to face the region between the two fans 11. Therefore, the air containing the active species flows through the air flow path 15c so as to avoid the baffle plate 19, so that the air flow is disturbed around the baffle plate 19 and mixes well with the surrounding air. Moreover, the air containing the active species is dispersed in at least two directions by the baffle plate 19. As a result, the air containing the active species is guided to the two fans 11, respectively, so that air with a relatively high concentration of active species can be prevented from being attracted to one of the two fans 11.

Second Embodiment
FIG. 9 is a cross-sectional view showing an air conditioner 31 according to the second embodiment of the present invention, and FIGS. 10 (a) and 10 (b) show the baffle plate 19 and the discharge part 7 in the air conditioner 31. It is the schematic for demonstrating positional relationship. The air conditioner 31 of the second embodiment is different from the first embodiment in that the baffle plate 19 is disposed to face the discharge portion 7. In addition, the same code | symbol is attached | subjected to the same component as 1st Embodiment here, and the detailed description is abbreviate | omitted.

  As shown in FIGS. 10 (a) and 10 (b), each discharge device 17 has a plurality of minute discharges as discharge portions that discharge active species in the vicinity of the center in the longitudinal direction, as in the first embodiment. A hole 77 is provided. The plurality of discharge holes 77 are provided in the vicinity of the center in the longitudinal direction and constitute a discharge hole group (discharge part) 7. Specifically, there are four small sets of six discharge ports 77, and these four small sets are arranged along the longitudinal direction of the discharge device 17.

  As shown in FIGS. 10A and 10B, the baffle plate 19 is arranged to face a part of the discharge portion 7, that is, the second and third small sets counted from one end. Yes. Further, as shown in FIG. 10C, the baffle plate 19 may be disposed so as to face the entire discharge portion 19.

  Moreover, as shown in FIG.10 (d), what bended the flat plate into the V shape as the baffle plate 19 can also be used. In the case of this form, the baffle plate 19 is arranged so that the bent portion faces the discharge device 17 side (upstream side opening 15a side).

  In the second embodiment, since the baffle plate 19 is disposed so as to face the discharge portion 7, the activity released from the discharge portion 7 even if the discharge portion 7 is locally arranged in the discharge device 17. The air containing the seeds flows so as to avoid the baffle plate 19 because the path is blocked by the baffle plate 19 immediately after the active species are released from the discharge portion 7. In this way, the active species can be diffused into the surrounding air immediately after being released from the emission part 7.

  Further, as shown in FIG. 10C, when the baffle plate 19 is arranged so as to face the whole of the discharge portion 19, the air containing the active species is moved in two directions by the baffle plate 19 (FIG. Since it becomes easy to branch in the horizontal direction c), the diffusion effect of active species can be enhanced.

  Further, as shown in FIG. 10D, when a baffle plate 19 bent into a V shape is used as the baffle plate 19, air can easily flow along each V-shaped surface. Therefore, the resistance when air flows becomes small.

  Other configurations, functions, and effects are the same as those in the first embodiment, although explanations thereof are omitted.

<Third Embodiment>
FIG. 11 is a cross-sectional view showing an air conditioner 31 according to a third embodiment of the present invention. The air conditioner 31 of this third embodiment is different from the first embodiment in that the baffle plate 19 is disposed between the discharge device 17 and the filter 23. In addition, the same code | symbol is attached | subjected to the same component as 1st Embodiment here, and the detailed description is abbreviate | omitted.

  In the third embodiment, since the baffle plate 19 is disposed between the discharge device 17 and the filter 23, the active species reach the filter 23 after being diffused by the baffle plate 19. Thereby, the variation of the active species concentration of the air passing through the filter 23 is reduced in the surface direction of the filter 23. Thereby, since an active species can be spread over a wider range of the filter 23, the sterilization effect by the active species can be further enhanced.

  Other configurations, functions, and effects are the same as those in the first embodiment, although explanations thereof are omitted.

<Fourth embodiment>
FIG. 12 is a cross-sectional view showing an air conditioner 31 according to the fourth embodiment of the present invention. The air conditioner 31 of the fourth embodiment is different from the first embodiment in that the air conditioner 31 is a ceiling-embedded duct type indoor unit that is used by being embedded in the ceiling. In addition, the same code | symbol is attached | subjected to the same component as 1st Embodiment here, and the detailed description is abbreviate | omitted.

  The air conditioner 31 of the fourth embodiment includes an air conditioner main body 13 and a discharge unit 33. The air conditioner main body 13 includes a rectangular parallelepiped main body casing 21, two fans 11 disposed in the main body casing 21, and a heat exchanger 45. A suction port 21 a is formed in the back plate 21 f of the main body casing 21. An air outlet 21 b is formed in the front side portion of the main body casing 21.

  The two fans 11 are respectively arranged in the space on the back side of the main body casing 21. Each fan 11 is a sirocco fan, and is arranged such that the axial direction of the rotation shaft 11 c is substantially parallel to the width direction of the main body casing 21. These fans 11 face each other at their fan suction ports 11a.

  The discharge unit 33 has substantially the same configuration as that of the first embodiment. In the fourth embodiment, the discharge unit 33 is attached to the back plate 21 f of the main body casing 21. That is, the peripheral edge of the downstream opening 15b of the frame 15 of the discharge unit 33 is fitted in the suction port 21a provided in the back plate 21f. The baffle plate 19 is disposed in the frame 15 at a position downstream of the electrostatic filter 23.

  FIG. 13A is a schematic diagram showing a positional relationship when the two fans 11, the discharge device 17, and the baffle plate 19 in the fourth embodiment are viewed from the upstream opening 15a side. As shown in FIG. 13A, in the fourth embodiment, the discharge portion 7 of the discharge device 17 is disposed so as to face the region between the fan 111 and the fan 112. Specifically, the discharge portion 7 is located at substantially the center in the axial direction in the region between the fans 111 and 112.

  In the case of such a positional relationship, the baffle plate 19 is preferably disposed substantially at the center in the axial direction in the region between the two fans 11 as shown in FIG. Since the air containing the active species discharged from the discharge unit 7 is disturbed in the flow around the baffle plate 19 and is mixed with the surrounding air, the concentration of the active species is made more uniform. Further, the air containing the active species discharged from the discharge unit 7 branches at the baffle plate 19 and is sucked into the fan suction port 11a of the fan 111 and the fan suction port 11a of the fan 112 almost evenly.

  Further, as shown in FIG. 13B, the discharge portion 7 of the discharge device 17 is arranged in a biased position near the fan suction port 11a of one fan 11 (fan 112 in FIG. 13B). In this case, the baffle plate 19 may be disposed on the air flow path from the discharge portion 7 to the suction port 11a on the left side of the fan 112 closest to the discharge portion 7. Thereby, the peak height of the ozone concentration contained in the air blown out from the outlet 21b can be effectively reduced. The reason is the same as that described with reference to FIG. 8 in the first embodiment.

  Other configurations, functions, and effects are the same as those in the first embodiment, although explanations thereof are omitted.

<Fifth Embodiment>
14 is a bottom view showing an air conditioner 31 according to a fifth embodiment of the present invention, and FIG. 15 is a cross-sectional view taken along line XV-XV in FIG. In FIG. 14, members such as the frame 15, the pre-filter 41, the electrostatic filter 23, and the bottom plate 21 d of the main body casing 21 are provided so that the positional relationship among the discharge device 17, the baffle plate 19, the fan 11, and the like can be easily explained. Is not shown.

  The air conditioner 31 of the fifth embodiment is different from the first embodiment in that the air conditioner 31 is a double-flow type indoor unit that is embedded in a ceiling and can be blown out in different directions. In addition, the same code | symbol is attached | subjected to the same component as 1st Embodiment here, and the detailed description is abbreviate | omitted.

  The air conditioner 31 of the fifth embodiment includes an air conditioner body 13 and a discharge unit 33. The air conditioner main body 13 includes a rectangular parallelepiped main body casing 21, two fans 11 (111, 112) disposed in the main body casing 21, and two heat exchangers 45.

  As shown in FIG. 14, the fan 111 and the fan 112 are sirocco fans, arranged along the longitudinal direction of the suction port 21 a, and each rotating shaft 11 c is connected to one motor 91. The fan suction port 11a of the fan 111 and the fan suction port 11a of the fan 112 face each other in the axial direction of the rotating shaft 11c.

  A suction port 21 a is formed in the bottom plate 21 d of the main body casing 21 below the fans 111 and 112. A discharge unit 33 is attached to the suction port 21a. In addition, air outlets 21b are formed in the bottom plate 21d of the main casing 21 at positions on both sides of the discharge unit 33, respectively.

  The fan discharge port 21f of the fan 111 opens toward the one outlet 21b (the left outlet 21b in FIG. 15). The fan discharge port 21f of the fan 112 opens toward the other air outlet 21b (the right air outlet 21b in FIG. 15).

  The discharge unit 33 includes two discharge devices 17 (17a and 17b) and one baffle plate 19. One discharge device 17 a is disposed at a position facing the fan 111, and the other discharge device 17 b is disposed at a position facing the fan 112. The discharge portion 7 of each discharge device 17 is provided near the center of the discharge device 17 in the longitudinal direction.

  The discharge device 17a is disposed along the axial direction of the rotary shaft 11c at a position opposite to the fan discharge port 11f of the fan 111 with respect to the rotary shaft 11c of the fan 111. The discharge device 17b is disposed along the axial direction of the rotary shaft 11c at a position opposite to the fan discharge port 11f of the fan 112 with respect to the rotary shaft 11c of the fan 111.

  The baffle plate 19 is disposed at a position downstream of the electrostatic filter 23 in the frame body 15, and the longitudinal direction of the baffle plate 19 is substantially perpendicular to the rotation shaft 11 c. The baffle plate 19 is located substantially in the center in the axial direction in the region between the fans 111 and 112.

  In the fifth embodiment, the air containing the active species released from the emitting unit 7 is disturbed in the flow in the baffle plate 19 and is more mixed with the surrounding air, so that the active species concentration is made more uniform. In addition, the air containing the active species discharged from the discharge unit 7 branches at the baffle plate 19 and is sucked from the fan suction port 11a of the fan 111 and the fan suction port 11a of the fan 112.

  Other configurations, functions, and effects are the same as those in the first embodiment, although explanations thereof are omitted.

<Sixth Embodiment>
FIG. 16: is sectional drawing which shows the air conditioner 31 concerning 6th Embodiment of this invention. In the air conditioner 31 of the sixth embodiment, the discharge unit 33 is not detachable from the air conditioner body 13 as in the first embodiment, but the discharge device 17, the baffle plate 19, and the filters 23 and 41. Such a configuration is different from that of the first embodiment in that it is accommodated in the main body casing 21. In addition, the same code | symbol is attached | subjected to the same component as 1st Embodiment here, and the detailed description is abbreviate | omitted.

  As shown in FIG. 16, in the air conditioner 31 of the sixth embodiment, the main body casing 21 has an accommodation space for accommodating the discharge device 17 and the like below the fan 11. In this accommodation space, the pre-filter 41, the support frame 51 that supports the discharge device 17, the electrostatic filter 23, and the baffle plate 19 are arranged in this order from the upstream side to the downstream side.

  As described above, in the sixth embodiment, since the discharge device 17, the filters 41 and 23, the baffle plate 19, and the like are integrated in the main body casing 21, it takes time to install the discharge unit 33 at the installation site. Can be omitted. Further, the number of parts can be reduced by the amount of the frame 15 of the discharge unit 33.

  Other configurations, functions, and effects are the same as those in the first embodiment, although explanations thereof are omitted.

<Other embodiments>
Note that the present invention is not limited to the above-described embodiment, and various modifications and improvements can be made without departing from the spirit of the present invention. For example, in the above embodiment, the case where the present invention is applied to an indoor unit of an air conditioner that performs air conditioning is described as an example. However, the present invention may also be applied to other air conditioners such as an air purifier. it can.

  In the above embodiment, the case where active species are generated by causing streamer discharge has been described as an example, but the type of discharge is not limited thereto. For example, active species may be generated using other plasma discharges such as glow discharge and barrier discharge.

  Moreover, in the said embodiment, although the case where the air conditioner main body was equipped with the sirocco fan was mentioned as an example, it demonstrated and it is not limited to this. As the fan, for example, other fans such as a turbo fan and a cross flow fan can be used.

  In the above embodiment, the air conditioner is described as an example of an indoor unit such as a ceiling-suspended type, a ceiling-embedded duct type, or a ceiling-embedded double-flow type, but the present invention is not limited to this. The present invention can also be applied to other indoor units such as a wall-mounted type. In the case of the wall-mounted type, a cross flow fan is often used as a fan. In the type of fan having a wide air suction portion such as the cross flow fan, for example, a fan is used so as to face the suction portion of the fan. One or more baffle plates are provided. In this case, the air containing the active species collides with the baffle plate before being sucked by the fan, so that the active species diffuses around the baffle plate. Thereby, it can suppress attracting | sucking biased from a local part among the suction | inhalation parts of a fan.

7 Release hole group (release part)
DESCRIPTION OF SYMBOLS 11 Sirocco fan 11a Fan suction port 11b Fan discharge port 13 Air conditioner main body 15 Frame 15a Upstream side opening 15b Downstream side opening 15c Air flow path 17 Discharge device 19 Baffle plate 21 Main body casing 21a Suction port 21b Air outlet 21c Air Flow path 23 Filter 31 Air conditioner 33 Discharge unit A Fan arrangement direction

Claims (12)

The air conditioner main body (13) having a fan (11) can be mounted, and in the mounted state mounted on the air conditioner main body (13), the air-conditioned air is inactivated at least partially. A discharge unit that can be supplied to the machine body (13),
A frame body (15) having an upstream side opening (15a) serving as an air suction side, and a downstream side opening (15b) serving as a side for blowing out the air and supplying the air to the air conditioner body (13);
By causing discharge, active species can be released into the air flowing through the air flow path (15c) in the frame (15) from the upstream opening (15a) to the downstream opening (15b). A discharge device (17);
A discharge unit comprising a baffle plate (19) provided on a flow path of air containing the active species in the air flow path (15c) on the downstream side of the discharge device (17). A filter (23) disposed in the air flow path (15c) and capable of collecting a substance to be decomposed contained in the air flowing through the air flow path (15c);
The discharge unit according to claim 1, wherein the discharge device (17) is disposed to face the filter (23) so that the active species can be supplied to the filter (23). The fan (11) has a fan suction port (11a),
The discharge unit according to claim 1 or 2, wherein the baffle plate (19) is disposed so as to face the fan suction port (11a) in the mounted state. The air conditioner body (13) has a plurality of the fans (11) arranged along the suction port (21a), and the plurality of fans (11) are arranged in the arrangement direction (A ) A centrifugal fan having a fan suction port (11a) facing toward the surface, and each of the fan suction ports (11a) includes at least two fans (11) facing the arrangement direction (A),
The discharge unit according to claim 1 or 2, wherein the baffle plate (19) is arranged so as to face a region between the two fans (11) in the mounted state. The discharge device (17) has an emission part (7) for emitting the active species,
The discharge unit according to any one of claims 1 to 4, wherein the baffle plate (19) is disposed to face the discharge portion (7).   The discharge unit according to any one of claims 1 to 5, wherein the baffle plate (19) is disposed between the discharge device (17) and the filter (23). A casing (21) having an inlet (21a) and an outlet (21b);
At least one fan (11) for creating an air flow in the air flow path (21c) in the casing (21) from the suction port (21a) to the blowout port (21b);
A discharge device (17) disposed in the air flow path (21c) upstream of the fan (11) and capable of releasing active species into the air flowing through the air flow path (21c) by causing discharge. )When,
A baffle plate provided on the air flow path containing the active species in the air flow path (21c) downstream of the discharge device (17) and upstream of the fan (11). 19). A filter (23) disposed in the air flow path (21c) on the upstream side of the fan (11) and capable of collecting a substance to be decomposed contained in the air flowing through the air flow path (21c) is further provided. ,
The air conditioner according to claim 7, wherein the discharge device (17) is arranged to face the filter (23) so that the active species can be supplied to the filter (23). The fan (11) has a fan suction port (11a),
The air conditioner according to claim 7 or 8, wherein the baffle plate (19) is disposed to face the fan suction port (11a). A plurality of the fans (11) are provided and arranged along the suction port (21a), and the plurality of fans (11) are arranged in a fan suction port (11a) facing in the arrangement direction (A). And the fan suction port (11a) of each other includes at least two fans (11) facing the arrangement direction (A),
The air according to claim 7 or 8, wherein the baffle plate (19) is arranged at a position upstream of an area between the two fans (11) and at a position facing the area. Harmony machine. The discharge device (17) has an emission part (7) for emitting the active species,
The air conditioner according to any one of claims 7 to 10, wherein the baffle plate (19) is disposed to face the discharge portion (7).   The air conditioner according to any one of claims 7 to 11, wherein the baffle plate (19) is disposed between the discharge device (17) and the filter (23).

Images