JP2007309584A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner not being operated in a state that dust is attached to a filtration face of a filter material. <P>SOLUTION: The filtration face 26 of the filter material 25 is held between a nozzle body 70 and an opposed plate 72 opposed to a suction face 70A of the nozzle body 70. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air conditioner provided with a filter material for circulating air sucked from a suction opening.

Conventionally, an air conditioner provided with a main body unit having a heat exchanger and a blower and a decorative panel, provided with a filter material on the decorative panel, and provided with a cleaning means for sucking and cleaning dust adhering to the filter material. Are known. In this type of air conditioner, a filter material is arranged on a suction surface of room air, and the indoor air sucked by the filter material is filtered. Since the dust contained in the room air is captured and accumulated in this filter material, if the cumulative operation time of the air conditioner becomes longer, the filter will be clogged, and the air conditioner will increase as the intake resistance increases. The driving efficiency will be reduced. Therefore, an air conditioner has been proposed in which dust adhering to the filtration surface of the filter material is sucked and cleaned by a cleaning means, and the dirty filter material is wound up by a filter transport mechanism and a new filter material is fed out ( For example, see Patent Document 1).
JP-A-9-184656

However, in the above-described conventional air conditioner, it has been difficult to suck and remove dust adhering to and sticking to the filtration surface of the filter material. For this reason, the air conditioner may be operated in a state where dust that could not be removed remains attached to the filtration surface.
Therefore, an object of the present invention is to solve the problems of the conventional technology described above, and to provide an air conditioner that does not operate the air conditioner while dust remains attached to the filtration surface of the filter material. It is to provide.

  The present invention includes a main body unit having a heat exchanger and a blower, and a decorative panel, provided with a filter material on the decorative panel, and air provided with a cleaning means for sucking and cleaning dust adhering to the filter material. In the conditioner, the cleaning means includes an opposing plate that is disposed to face the filter material.

  In this case, the cleaning means may include a dust collection box for collecting the sucked dust at a corner of the main unit.

  Moreover, this invention is an air conditioner provided with the main body unit which has a heat exchanger and an air blower, and the decorative panel arrange | positioned in the downward position of this main body unit, The filter unit between the said main body unit and the said decorative panel The filter unit is provided with a filter material, and cleaning means for sucking and cleaning dust adhering to the filter material is provided, and the cleaning means includes a counter plate disposed so as to face the filter material. It is characterized by that.

  In this case, the cleaning means may include a dust collection box for collecting the sucked dust at a corner of the filter unit.

  In the above case, the cleaning means may have a suction portion extending in a strip shape along the filtration surface of the filter material, and the suction portion and the counter plate may move along the filtration surface. The suction part and the counter plate may be integrally connected by a side frame on the side of the filter material.

  In the above case, the counter plate may include a scratching roller that contacts the filter material. The scratch roller may be rolled by a motor. The scratching roller may be rolled by an intake air flow to the suction unit.

  Further, in the above case, the suction portion has a suction opening having a length substantially the same as the entire width of the filter material and extending in the same direction as the width direction of the filter material, and dust sucked by the suction opening. A joint part for connecting a hose to be conveyed, and a communication space for communicating the joint part and the suction opening are formed, and as the position of the suction opening moves away from the position of the joint part, a cross section of the communication space May be formed to be small. The joint portion is formed with a plurality of branch portions that branch to the suction portion side, and at a plurality of positions distributed in substantially the same direction as the direction in which the suction openings are formed, You may communicate with the space. The plurality of branch portions may be formed so that a section of a flow path formed inside the branch portion becomes smaller as the length of the branch portion from the position where the hose is connected is shorter.

  According to the present invention, since the cleaning means includes the opposing plates that are arranged to face each other with the filter material sandwiched therebetween, the cleaning performance is improved, and the air conditioner can be used with the dust remaining on the filtration surface of the filter material. It is possible to prevent driving.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a perspective view of a ceiling-embedded air conditioner (air conditioner) 100 according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of FIG.
As shown in FIG. 1, the ceiling-embedded air conditioner 100 is configured in three stages by a sheet metal body unit 1, a filter unit 20, and a decorative panel 21 that are formed in a substantially rectangular box shape. As shown in FIG. 2, the suspension bolt 2 is suspended from the ceiling.

Inside the main unit 1, as shown in FIG. 2, a heat insulating body 3 made of polystyrene foam, a blower 9, and a heat exchanger 11 are provided. The heat insulator 3 is disposed in a state of being substantially in contact with the inner surface of the side plate 1A of the main unit 1.
The blower 9 includes a motor 5 having a shaft disposed downward and an impeller 7 attached to the shaft of the motor 5.
The heat exchanger 11 is bent into a substantially square shape so as to surround the blower 9, and is disposed inside the heat insulator 3.

Further, inside the heat insulating body 3 and below the heat exchanger 11, a drain pan 13 made of styrene foam and drain accumulated in the drain pan 13 are discharged to the outside so as to cover the lower surface 11A of the heat exchanger 11. A drain pump (not shown) is arranged.
The drain pan 13 is arranged with its outer periphery 13A substantially in contact with the inner surface of the side plate 1A of the main unit 1. The drain pan 13 has various components such as the nozzle 17 of the blower 9 and the electrical box 19 (FIG. 3). Is screwed.
As shown in FIG. 1, the filter unit 20 is attached to the lower surface of the main unit 1 with a mounting tool 55 supported by the filter unit mounting portion 56 of the main unit 1, and the filter material 25 as shown in FIG. 2. And a filter cleaning device (cleaning means) 40 and a filter transport device 41.
A decorative panel 21 is attached to the lower surface of the filter unit 20. The decorative panel 21 is formed with a mesh-like suction port 22 for sucking air in the conditioned room and an outlet 23 for blowing conditioned air into the conditioned room.

FIG. 3 is a bottom view showing the main unit 1.
The drain pan 13 is formed with a suction opening 130 and a blowout opening 131. The suction opening 130 is formed at a position corresponding to the suction opening 22 (see FIG. 2) of the decorative panel 21 when the drain pan 13 is assembled to the main body unit 1. It is formed at a position corresponding to the outlet 23 (see FIG. 2). The suction opening 130 provided in the drain pan 13 is formed in a substantially circular shape in plan view at the center of the drain pan 13 formed in a substantially rectangular shape. Further, the blowout opening 131 is formed along each of the four sides of the drain pan 13.
Four suspension fittings 27A to 27D are connected to the outside of the side plate 1A of the main unit 1, and these suspension fittings 27A to 27D are supported by the suspension bolts 2 (see FIG. 2) to embed the ceiling-embedded air. The harmony machine 100 is suspended from the ceiling. Reinforcing members 15 </ b> A and 27 </ b> D are screwed to the hanging metal fittings 27 </ b> A to 27 </ b> D with screws 30, and the electrical box 19 is screwed to the reinforcing member 15 </ b> A and the drain pan 13. A filter unit for supporting the filter unit 20 by connecting a fixture 55 (see FIG. 1) of the filter unit 20 in the vicinity of the suspension bracket 27A and the suspension bracket 27D opposite to the suspension bracket 27A. A mounting portion 56 is provided.

FIG. 4 is a bottom view showing the filter unit 20.
The filter unit 20 is formed with a suction opening 42 and a blow-out opening 43. The suction opening 42 is formed at a position corresponding to the suction opening 22 (see FIG. 2) of the decorative panel 21 when the filter unit 20 is assembled to the main unit 1, and the blowout opening 43 is formed at the outlet 23 ( (See FIG. 2). The suction opening 42 provided in the filter unit 20 is formed in a substantially rectangular shape in plan view at the center of the filter unit 20 formed in a substantially rectangular shape. Further, the blowout opening 43 is formed along each of the four sides of the filter unit 20.
On the bottom surface of the filter unit 20, decorative panel mounting portions 57 for supporting the decorative panel 21 are provided at the four corners. The attachment unit 55 of the filter unit 20 is provided at a position corresponding to the filter unit attachment portion 56 of the main unit 1 when the filter unit 20 is assembled to the main unit 1.

  The suction opening 42 of the filter unit 20 is formed at a position corresponding to the suction opening 130 of the main unit 1 when the filter unit 20 is assembled to the main unit 1 as shown in FIG. 43 is formed at a position corresponding to the air outlet 131 of the main unit 1. For this reason, the air sucked from the suction port 22 of the decorative panel 21 flows into the suction opening 130 of the main unit 1 through the suction opening 42 of the filter unit 20. The conditioned air blown out from the blowout opening 131 of the main unit 1 blows out from the blowout opening 23 of the decorative panel 21 to the conditioned room through the blowout opening 43 of the filter unit 20.

  As shown in FIG. 4, the filter material 25 is attached to a filter transport device 41, and a rectangular filtration surface 26 is formed. The filtering surface 26 covers the suction opening 130 formed in the drain pan 13 with the filter material 25 attached. The filter material 25 is formed in a strip shape with a flat material with few irregularities so that the attached dust can be easily removed and can be easily cleaned. The filter material 25 can be transported in the direction indicated by the arrow A by the filter transport device 41, and a frame frame 58 that forms a frame of the filtration surface 26 is provided before and after the filter material 25 in the transport direction.

The filter transport device 41 includes a pair of guide shafts 44 that guide the filter material 25 at both ends of the filtration surface 26. A pair of rolls 45 </ b> A and 45 </ b> B are disposed between the pair of guide shafts 44. These rolls 45 </ b> A and 45 </ b> B are disposed between the filtration surface 26 and the drain pan 13, and are disposed so as not to interfere with the air flowing vertically from the filtration surface 26 to the suction opening 130. .
The filter material 25 is formed in a band shape, and is bent toward the suction opening 130 along the guide shaft 44 at both ends of the filtration surface 26. One end of the filter material 25 is wound around the roll 45A, and the other end is wound around the roll 45B. Since both ends of the filtration surface 26 are bent by the guide shaft 44, unlike the case where the rolls 45A and 45B are provided directly at both ends of the filtration surface 26 without providing the guide shaft 44, they are wound around the rolls 45A and 45B. The sizes of the gaps C and D between the filter transport device 41 and the frame frame 58 do not change according to the number of turns of the filter material 25 that has been obtained.

The roll 45A can be rotated by the driving force of the transport motor 46, and the roll 45B exceeds a certain force (at least the force that prevents the filter material 25 from being sucked into the blower 9 by the suction force of the blower 9). It has a latch that only rotates. Thereby, since the roll 45A pulls the filter material 25, the filter material 25 is tensioned.
When the transport motor 46 is driven, the roll 45A rotates to pull the filter material 25, the filter material 25 wound around the roll 45B is fed out, and the filter material 25 is transported in the direction indicated by the arrow A, and the filter material 25 is filtered. The position of the surface 26 changes.

The filter cleaning device 40 includes a cleaning nozzle 47, a flexible hose (hose) 49, and a suction device 48. The suction device 48 and the cleaning nozzle 47 are connected via a flexible hose 49. When the suction device 48 generates a suction force, the cleaning nozzle 47 as a suction port removes dust adhering to the filter material 25. Suction. At this time, the dust sucked by the cleaning nozzle 47 is transported to the suction device 48 through the flexible hose 49 and collected in a dust collection box 48A provided in the suction device 48.
The dust collection box 48 </ b> A is disposed between two adjacent outlet openings 43 at the corner of the filter unit 20. Further, since the filter unit 20 includes the dust collection box 48A, it is not necessary to discard the collected dust outside the room, and it is not necessary to provide a flexible exhaust hose or the like leading to the outside. Easy to install. The dust collection box 48A is a cyclone type, and compresses the sucked dust to collect the dust. Therefore, even a small dust collection box 48A can collect a large amount of dust.

  A suction blower 54 that generates the suction force of the suction device 48 is disposed outside the dust collection box 48A, that is, outside the outer frame 20A of the filter unit 20. Further, a suction motor 53 that drives the suction blower 54 is disposed beside the suction blower 54. The suction blower 54 and the suction motor 53 constitute a part of the suction device 48. In the suction device 48, a suction motor 53 is disposed at a position bent substantially at a right angle with respect to the dust collection box 48 </ b> A and the suction blower 54, that is, at a position beside the blowout opening 43. For this reason, the filter unit 20 is configured compactly when the suction motor 53 is linearly arranged with respect to the dust collection box 48A and the suction blower 54.

  The flexible hose 49 is stored in a hose storage space E formed between the filter transport device 41 and the blowout opening 43. Here, the intermediate portion of the flexible hose 49 is located at a position slightly offset from the center of the wall surface E1 formed substantially parallel to the rail frames 50A and 50B in the hose storage space E to the dust collection box 48A. It is fixed with. For this reason, the flexible hose 49 can freely move on the side of the cleaning nozzle 47 with the hose fixture 59 as a base point, and can move following the movement of the cleaning nozzle 47. In addition, the flexible hose 49 extends substantially linearly between the hose fixture 59 and the dust collection box 48A, suppresses pressure loss when the suction device 48 sucks, and suppresses a decrease in suction force.

A slide motor 51 is disposed on the side of the rail frame 50A opposite to the filter material 25, and a pair of rail frames 50A on the side of the filter material 25 on the side of the filter material 25 are provided in the vicinity of both ends in the sliding direction as shown in FIG. A pulley 52 is arranged.
A single ring-shaped belt 53 is wound around the pair of pulleys 52. The belt 53 rotates around the pair of pulleys 52 by the driving force of the slide motor 51. Further, a cleaning nozzle 47 is fixed to the belt 53, and the cleaning nozzle 47 moves along the rail frames 50A and 50B when the slide motor 51 rotates to rotate the belt 53.

The cleaning nozzle 47 is bridged between a pair of rail frames 50 </ b> A and 50 </ b> B disposed along the filtration surface 26 at both ends in the width direction of the filter material 25. As shown in FIG. 4, the cleaning nozzle 47 can slide back and forth along the rail frames 50 </ b> A and 50 </ b> B as indicated by an arrow B while being kept substantially perpendicular to the rail frames 50 </ b> A and 50 </ b> B. . During the operation of the ceiling-embedded ceiling-mounted air conditioner 100, the cleaning nozzle 47 is located at the end portion in any direction of the arrow B, that is, a position that does not interfere with the air flowing through the filtration surface 26. .
The cleaning nozzle 47 includes a main frame 71 that spans the rail frames 50A and 50B. As shown in FIG. 5, a nozzle body (suction part) 70 is attached to the main frame 71 on the filter material 25 side. The nozzle body 70 is formed in a hollow shape with a rectangular cross section, and extends in a strip shape along the filtration surface 26 of the filter material 25 as shown in FIG. A suction opening 75 for sucking dust adhering to the filtration surface 26 is formed in the center of the suction surface 70A facing the filtration surface 26 from the rail frame 50A side to the rail frame 50B side. The suction opening 75 has a length substantially the same as the entire width of the filter material 25 and extends in the same direction as the width direction of the filter material 25. In the nozzle body 70, a communication space F that allows the suction opening 75 and the flexible hose 49 to communicate with each other is formed.

  The rail frame 50 </ b> A side of the nozzle body 70 is connected to a flexible hose 49 (see FIG. 4) via an L-shaped tube (joint portion) 76. The communication space F of the nozzle main body 70 has a height t1 at the end on the L-shaped tube 76 side (rail frame 50A side). For this reason, the height of the communication space F of the nozzle body 70 is formed so as to gradually decrease from the L-shaped tube 76 side to the other end, and the height t2 (t1) on the other end side, that is, the rail frame 50B side. > T2). Thereby, the cross section of the communication space F formed in the nozzle body 70 is formed such that the position in the suction opening 75 becomes smaller as the position away from the position where the flexible hose 49 is connected.

  As shown in FIG. 7, the rail frame 50A side end portion and the rail frame 50B side end portion of the main frame 71 are connected to the main frame 71 from the main frame 71 to the back side (the suction opening 130) of the filter material 25 (filtering surface 26). A side frame 73 extending to the side) is attached to the side of the filter material 25. A counter plate 72 is bridged between the pair of side frames 73 on the back side of the filter material 25 and is formed integrally with the pair of side frames 73. That is, the filter material 25 is sandwiched between the nozzle body 70 disposed on the front side of the filtration surface 26 and the opposing plate 72 disposed on the back side of the filtration surface 26 and facing the suction surface 70 </ b> A of the nozzle body 70. As a result, the counter plate 72 constitutes a part of the cleaning nozzle 47 and moves along the filtration surface 26 of the filter material 25 together with the nozzle body 70 integrally connected by the side frame 71. Here, as shown in FIG. 5, the opposing plate 72 is bent toward the suction opening 130 so that both ends in the moving direction of the cleaning nozzle 47 do not hit the filter material 25 to form a bent portion 72A. The area of the surface of the counter plate 72 that faces the suction surface 70A is substantially the same as that of the suction surface 70A. Further, the interval between the suction surface 70A and the counter plate 72 is such that when the suction device 48 is operated, the flow velocity of the air flowing between the suction surface 70A and the counter plate 72 is increased, and the suction force is improved. It consists of

  A brush roller (scratching roller) 74 that is in contact with the back side of the filter material 25 is bridged between the pair of side frames 73 as shown in FIG. The brush roller 74 has a surface that contacts the filter material 25 facing the suction opening 75 by a brush motor (motor) 77 that operates in conjunction with the suction motor 53 (see FIG. 4) of the suction device 48 (see FIG. 4). Rolling. The brush motor 77 is disposed on the surface of the counter plate 72 on the suction opening 130 (see FIG. 2) side, and is a pulley attached to the shaft of the brush motor 77 at the end on the rail frame 50A (see FIG. 4) side. As shown in FIG. 5, a ring-shaped brush belt 79 is wound around 77A and a pulley 74A attached to the brush roller 74. Thereby, when the brush motor 77 is driven, the brush roller 74 rolls and scratches the back surface of the filter material 25 toward the suction opening 75.

When the ceiling-embedded air conditioner 100 is operated, the air in the conditioned room sucked from the suction port 22 of the decorative panel 21 passes through the blower 9 after being filtered by the filter surface 26 of the filter material 25 and performs heat exchange. The air is sent to the vessel 11. The air blown to the heat exchanger 11 is air conditioned by the heat exchanger 11 and blown out as conditioned air from the outlet 23 of the decorative panel 21 to the conditioned room.
As the operation time of the ceiling-embedded air conditioner 100 elapses, dust contained in the air in the conditioned room is captured and accumulated on the filtration surface 26 of the filter material 25. At this time, when the filter cleaning device 40 is operated, the brush roller 74 rotates to scratch the filter material 25, and the dust accumulated on the filtration surface 26 is sucked and cleaned. When the filter transport device 41 is operated, first, the filter cleaning device 40 is operated, the brush roller 74 rotates to scratch the filter material 25, and sucks dust accumulated on the filtration surface 26, Immediately after the filter cleaning device 40 is operated, the roll 45A of the filter transport device 41 winds up the filter material 25 and transports the filter material 25, and the position of the filtration surface 26 in the filter material 25 is set to a new position that is not dirty. change.

In the present embodiment, since the filtering surface 26 of the filter material 25 is sandwiched between the nozzle body 70 and the opposing plate 72 facing the suction surface 70A of the nozzle body 70, the suction force of the filter cleaning device 40 is dispersed. Therefore, it is possible to improve the cleaning ability and prevent the ceiling-embedded air conditioner 100 from being operated in a state in which dust remains attached to the filtration surface 26 of the filter material 25.
In the present embodiment, the nozzle body 70 and the suction surface 70A are integrally connected to the side of the filter material 25 by the side frame 73 and can move along the filter surface 26 of the filter material 25. 26 corners can be cleaned.

Furthermore, in this embodiment, since the brush roller 74 which contacts the filtration surface 26 of the filter material 25 and rolls by the brush motor 77 is provided, the brush roller 74 vibrates the filter material 25 and cleans the filter cleaning device 40. The ability can be further improved.
Furthermore, in this embodiment, since the height of the communication space F of the nozzle body 70 is formed so as to gradually decrease from the L-shaped tube 76 side to the other end, the cross section of the communication space F has a flexible hose 49. Decreases as the distance from the connected position increases. Thereby, it is possible to suppress a difference in suction force between the position near the L-shaped tube 76 and the position far from the L-shaped tube 76 in the suction opening 75.
In the present embodiment, since the suction device 48 of the filter cleaning device 40 is disposed at the corner of the filter unit 20 and between the two adjacent blowout openings 43, the filter unit 20 can be formed compactly. it can.

As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to this. In the said embodiment, although this invention is demonstrated using the four-way blowing type ceiling embedded air conditioner 100, it is not limited to this, Other ceiling embedded type air conditionings, such as a two-way blowing type, are described. It may be an air conditioner that is not a machine or a ceiling-embedded type.
Moreover, in the said embodiment, although this invention is demonstrated using the ceiling embedded type air conditioner 100 comprised by the main body unit 1, the filter unit 20, and the decorative panel 21 in three steps, It is not limited, It is a ceiling embedded type air conditioner configured in two stages by a main body unit including a filter material, a filter cleaning device, and a filter transport device and having a dust collection box disposed at a corner, and a decorative panel There may be.

  Further, in the above-described embodiment, the flexible hose 49 is connected to the nozzle body 70 on the rail frame 50A side through the single L-shaped tube 76. However, the present invention is not limited to this, for example, as shown in FIG. In addition, a branch pipe (joint portion) 80 that branches into a plurality of (three in FIG. 8) branch portions 78A, 78B, and 78C may be provided at the end of the cleaning nozzle 47 of the flexible hose 49. According to this configuration, it is possible to suppress the difference in suction force depending on the position in the suction opening 175, compared to the case where the flexible hose 49 and the nozzle body 70 are connected by a single L-shaped tube 76. Further, in this case, the branch portions 78A, 78B, 78C having a shorter length from the position where the flexible hose 49 is connected are made smaller in the cross section of the channel formed inside the branch portions 78A, 78B, 78C. (In FIG. 8, the branch portion 78A, the branch portion 78B, and the branch portion 78C are formed in this order in a smaller order). According to this configuration, it is possible to further suppress the difference in suction force caused by the position in the suction opening 175 of the nozzle body 170.

Furthermore, in the above-described embodiment, the brush roller 74 is rolled by the driving force of the brush motor 77, but is not limited thereto. For example, when the suction device 48 generates a suction force, the suction surface It may be configured to roll between 70A and the counter plate 72 by wind force of air flowing toward the suction opening 75. According to this, the brush roller 74 can be rolled without using the brush motor 77.
In the above-described embodiment, the brush roller 74 is provided on the counter plate 72 side with respect to the filter material 25 and scratches the surface of the filter material on the counter plate 72 side. Alternatively, a brush roller 74 may be provided on the nozzle body 70 side to scratch the surface of the filter material 25 on the nozzle body 70 side.

1 is a perspective view showing a ceiling-embedded air conditioner according to the present invention. It is sectional drawing which shows a ceiling embedded type air conditioner. It is a bottom view which shows a main body unit. It is a bottom view which shows a filter unit. It is sectional drawing which shows a cleaning nozzle. It is the upper side figure and side view which show a nozzle main body. It is a side view which shows a cleaning nozzle. It is the upper side figure and side view which show the nozzle main body and branch pipe by a modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body unit 9 Blower 11 Heat exchanger 20 Filter unit 21 Decorative panel 25 Filter material 26 Filter surface 40 Filter cleaning device (cleaning means)
48A Dust collection box 49 Flexible hose (hose)
70 Nozzle body (suction part)
72 Counter plate 73 Side frame 74 Brush roller (scratching roller)
75 Suction opening 76 L-shaped tube (joint part)
77 Brush motor (motor)
78A, 78B, 78C Branch part 80 Branch pipe (joint part)
100 Ceiling-embedded air conditioner (air conditioner)
F Communication space

Claims (12)

A main unit having a heat exchanger and a blower, and a decorative panel;
In the air conditioner provided with a cleaning material for sucking and cleaning the dust attached to the filter material, while providing a filter material on the decorative panel,
The air conditioner characterized in that the cleaning means includes a counter plate disposed so as to oppose the filter material.   The air conditioner according to claim 1, wherein the cleaning unit includes a dust collection box for collecting the sucked dust at a corner of the main unit. In an air conditioner including a main unit having a heat exchanger and a blower, and a decorative panel disposed at a lower position of the main unit,
A filter unit is provided between the main unit and the decorative panel,
A filter material is provided in the filter unit, and a cleaning means is provided for sucking and cleaning dust adhering to the filter material,
The air conditioner characterized in that the cleaning means includes a counter plate disposed so as to oppose the filter material.   The air conditioner according to claim 3, wherein the cleaning means includes a dust collection box for collecting the sucked dust at a corner of the filter unit.   The said cleaning means has a suction part extended in strip shape along the filtration surface of the said filter raw material, This suction part and the said opposing board can move along the said filtration surface. The air conditioner as described in any one of thru | or 4.   The air conditioner according to any one of claims 1 to 5, wherein the suction portion and the counter plate are integrally connected by a side frame at a side of the filter material.   The air conditioner according to any one of claims 1 to 6, wherein the counter plate includes a scratching roller that contacts the filter material.   The air conditioner according to claim 7, wherein the scratch roller is rolled by a motor.   The air conditioner according to claim 7, wherein the scratch roller is rolled by an intake air flow to the suction portion. The suction portion has a length substantially the same as the entire width of the filter material and a suction opening extending in substantially the same direction as the width direction of the filter material,
A joint part for connecting a hose for transporting dust sucked through the suction opening;
A communication space for communicating the joint portion and the suction opening is formed,
The air conditioner according to any one of claims 5 to 9, wherein a cross-section of the communication space is reduced as the position of the suction opening moves away from the position of the joint portion. . The joint portion is formed with a plurality of branch portions that branch to the suction portion side,
The air conditioner according to claim 10, wherein the branch portion and the communication space communicate with each other at a plurality of positions distributed in substantially the same direction as the direction in which the suction opening is formed. The plurality of branch portions are formed such that the shorter the branch portion from the position where the hose is connected, the smaller the cross section of the flow path formed inside the branch portion. The air conditioner according to claim 11.

Images