JP2012163297A - Built-in type cleaning device of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning device that certainly cleans heat exchangers, a fan and the surrounding thereof in an air conditioner without relying on labor and splashing a waste detergent or the like to the outside, prevents molds and mites, and keeps the inside of the air conditioner sanitary.SOLUTION: The cleaning device includes: a spray pipe 2a installed at the front upper part of front side heat exchangers 1a1, 1a2 in an indoor unit of a wall type air conditioner; a spray pipe 2b installed at the back upper part of a back side heat exchanger 1b1; a spray pipe 2c installed above the fan 3; a feed apparatus 4 to supply the spray pipes 2a, 2b and 2c with a detergent and a rinsing water in order; a waste-recovering gutter 5 that retreats to the back side of the indoor unit of the air conditioner except at the time of cleaning, and comes out to below the fan 3 at the time of cleaning; a driving unit 6 of the recovering gutter to serve to move the waste-recovering gutter 5; and a controller 7 to control operation of the feed apparatus 4, the fan 3 of the air conditioner and the driving unit 6 of the recovering gutter.

Description

  The present invention relates to a built-in air conditioner cleaning apparatus that is used by being incorporated in an indoor unit of an air conditioner that is used for air conditioning in a room of a building. The present invention relates to a built-in air conditioner cleaning apparatus capable of removing dust and the like attached to a fan, a heat exchanger, and the like.

  An air conditioner (air conditioner) basically includes an air filter, a heat exchanger, and a blower fan, sucks indoor air from a suction port, cools or heats the air through the air filter and the heat exchanger, and blows it out from a blower outlet. It is normal to be like this. Dust in the sucked air is supposed to be removed by an air filter, but fine ones pass through this and adhere to the fins of the heat exchanger and the inner surface of the flow path, or remove the heat exchanger. Some are passed through and blown out from the outlet.

  When dust adheres to the fins of the heat exchanger, it gradually accumulates and heat exchange efficiency decreases. In addition, if it adheres to the flow path, it further impedes ventilation of the ventilation path, resulting in reduced performance. Become. At the same time, it may cause mites and joy that are harmful to the human body, leading to the generation of unpleasant odors and other problems. If these are mixed in the drain generated in the heat exchanger and flow down to the drain pan, if left untreated, mold will be generated inside the drain pan and the inside will become extremely unsanitary like a throat. .

There exists an air conditioner of patent document 1 as a means to cope with such a problem.
This is a wall-mounted air conditioner that is provided with a spray nozzle on the front or back side of the heat exchanger, and is movable to a position where liquid can be sprayed over almost the entire width of the heat exchanger. A spray nozzle or a fixed spray nozzle is provided, and in addition, when a liquid is sprayed with these nozzles, a movable drip-proof cover is also provided, which operates immediately before it covers the blower fan. It is.

  This air conditioner cleans the heat exchanger at the time of the cleaning operation, but since the blower fan is covered with a drip-proof cover at the time of cleaning, naturally the blower fan cannot be cleaned. Since the cleaning liquid is simply sprayed on the heat exchanger with the spray nozzle, it is difficult to uniformly apply the cleaning liquid to the whole or its periphery, and the cleaning operation must be incomplete. .

Further, there is an automatic cleaning device for a heat exchanger disclosed in Patent Document 2 as a device having a similar purpose.
In order to spray the cleaning liquid on the side surface of the heat exchanger of the air conditioner, the cleaning liquid spray pipe arranged close to the side surface of the heat exchanger and the cleaning liquid supply section for supplying the cleaning liquid to the cleaning liquid spray pipe It is an automatic cleaning device for a retrofit type heat exchanger configured, and the cleaning liquid supply unit includes a cleaning liquid storage tank, a cleaning liquid supply pipe connecting the tank and the cleaning liquid spray pipe, and the cleaning liquid spray pipe and the tank. And a pump device for supplying the cleaning liquid in the tank to any part of the tank to the cleaning liquid spray pipe.

  Therefore, according to the automatic cleaning device for a heat exchanger of Patent Document 2, it can be attached to various types of heat exchangers such as an air conditioner and a refrigerator and used for the cleaning. It cannot be washed.

JP 11-337105 A JP 2009-250565 A

  The present invention reliably cleans the heat exchanger, the blower fan, and the surrounding area inside the air conditioner indoor unit without bothering human hands and without splashing cleaning waste liquid etc. to the outside. It is an object of the present invention to provide a built-in air conditioner cleaning apparatus that can be used by being incorporated in a wall-mounted air conditioner that can prevent the air conditioner and always keep the air conditioner in a sanitary manner.

1 of the present invention is a spraying means for cleaning liquid and rinse water respectively disposed on the front upper part of the front-side heat exchanger of the wall-mounted air conditioner indoor unit, the rear upper part of the rear-side heat exchanger, and the blower fan;
Cleaning liquid and rinsing water supply means for selectively supplying cleaning liquid and rinsing water to the spraying means, attached to the outside of the casing of the air conditioner indoor unit,
A waste liquid recovery tank for recovering cleaning waste liquid that stands by and waits on the rear side of the air conditioner indoor unit, and is disposed below the blower fan during a cleaning operation by the spraying means and the cleaning liquid and rinsing water supply means. A waste liquid recovery tank for advancing and receiving cleaning waste liquid flowing down from the blower fan and its surroundings and introducing it into a drain pan below the front heat exchanger,
A recovery rod driving means for performing a retracting operation of the waste liquid recovery rod to the rear side of the air conditioner indoor unit and an advance operation of the blower fan downward;
When a command to start cleaning is given, the recovery soot driving means is controlled to advance the waste liquid recovery soot that is retracted on the rear surface of the air conditioner indoor unit below the blower fan, and then the fan fan is operated weakly. After that, the cleaning liquid and the rinsing water supply means are allowed to supply the cleaning liquid for a certain period of time, thereby causing the spraying means to spray the cleaning liquid. Subsequently, the supply target is switched from the cleaning liquid to the rinsing water. The rinsing water supply operation is performed for another predetermined time, thereby causing the spraying means to perform the rinsing water spraying operation. After the end, the weak operation of the blower fan is continued for another predetermined time, Control means for controlling the recovery soot drive means to retract the waste liquid recovery soot to the rear side of the air conditioner indoor unit after the completion;
It is a built-in type air conditioner cleaning device composed of

2 of the present invention is the built-in air conditioner cleaning device of 1 of the present invention,
The spraying means is disposed on a lateral pipe body having a length corresponding to a lateral length of each of the front side heat exchanger, the rear side heat exchanger, and the blower fan, and on a lower peripheral side of the pipe body. It is composed of a large number of jets arranged along the length direction or jet slits formed along the length direction.

3 of the present invention is the built-in air conditioner cleaning device of 1 or 2 of the present invention,
A rail member that slidably supports both sides of the waste liquid recovery tank and guides between the rear side of the air conditioner indoor unit and the lower side of the blower fan, and one side of the waste liquid recovery tank A rack formed on the outer surface, a pinion that meshes with the rack, and an electric motor that rotationally drives the pinion.

4 of the present invention is the 1, 2, or 3 built-in air conditioner cleaning device of the present invention.
Timer means for giving a command to start cleaning periodically to the control means is added.

  According to the built-in type air conditioner cleaning device of the present invention, for example, when a command to start cleaning is given to the control means using a push button switch or the like at intervals of about once a month, By the control, the recovery rod driving means incorporated in the air conditioner indoor unit is operated to cause the waste liquid recovery rod to perform a predetermined movement operation, while causing the air blowing fan of the air conditioner to perform the weakest air blowing operation in the air conditioner indoor unit. The cleaning liquid and the rinsing water are sequentially supplied by the cleaning liquid and the rinsing water supply means, sprayed from the spraying means, and the heat exchanger of the air conditioner indoor unit, the blower fan and the surrounding members are automatically cleaned. Can do. It is very easy to keep the air conditioner clean at all times.

  In more detail, an appropriate cleaning liquid and water for rinsing after cleaning are prepared as rinsing water for cleaning the heat exchanger and the blower fan in the air conditioner indoor unit in the cleaning liquid and rinsing water supply means. As described above, for example, one built-in air conditioner cleaning device of the present invention performs a cleaning operation at a period interval of about once a month.

  The cleaning operation can be started by simply stopping the operation of the air conditioner and simply giving a cleaning start command to the control means. As described above, this can be executed by, for example, pressing a push button switch prepared for this purpose. The means for giving a command to start cleaning to the control means is not limited to the above push button switch, and various appropriate means can be employed.

  When a command to start cleaning is given to the control means, the control means controls to operate each part as follows.

  First, the recovery soot driving means is operated so that the waste liquid recovery soot that is retracted to the rear side of the air conditioner indoor unit is advanced below the blower fan and stopped at that position. Next, the blower fan of the air conditioner indoor unit to be incorporated is operated weakly and the state is continued. This weak operation is a blowing operation of the blowing fan in the weakest operating state in the air conditioner to be incorporated.

  Thereafter, the cleaning liquid and the rinsing water supply means are caused to supply the cleaning liquid for a predetermined time. This is, for example, a supply operation for a time of about 20 seconds to 30 seconds, and naturally, the spray operation of the cleaning liquid is performed for the same time from the supplied spraying means. The spraying means are respectively disposed on the front upper part of the front side heat exchanger of the air conditioner indoor unit, on the rear upper part of the rear side heat exchanger and above the blower fan, and respectively on the front side and rear side heat of the front side heat exchanger. It sprays from the upper part of the rear surface of an exchanger, and the upper direction of a ventilation fan, and flows down while conveying between the fins etc. in both heat exchangers. At this time, as described above, since the blower fan is in a weak operation state, the cleaning liquid adhering to both heat exchangers and the cleaning liquid sprayed from the spraying means are scattered widely, and each member is dispersed. It adheres evenly, and also adheres well to the surrounding members. Therefore, it is possible to efficiently clean a wide range inside the air conditioner indoor unit.

  The cleaning liquid sprayed from the spraying means above the blower fan is scattered by the wind force, adheres to the blower fan while spreading, and further adheres to the back side of both heat exchangers, and flows down while washing each one evenly. It will be.

  The cleaning liquid flowing down the rear side heat exchanger will eventually become waste liquid and will flow down to the drain pan located at the lowermost part, and the cleaning liquid flowing down the front side heat exchanger will also become waste liquid and placed at the lowermost part. It flows down to the drain pan. When the liquid level reaches a predetermined level, the waste liquid that has flowed down to each drain pan is drained by the drain pump provided in the air conditioner indoor unit. The cleaning waste liquid flowing down from the blower fan and the cleaning waste liquid that cannot flow down to the drain pan around it flow down or drop onto the waste liquid recovery tank, flow down on this, and flow into the drain pan below the front heat exchanger. become.

  When the predetermined time has elapsed, the cleaning liquid supply operation of the cleaning liquid and the rinsing water supply means is terminated, and the operation is switched to the rinsing water supply operation. The rinse water is supplied for about 30 seconds. Accordingly, naturally, the spraying operation of the rinse water is performed for the same time from the supplied spraying means. Then, as described above with respect to the cleaning liquid, the rinsing water uniformly contacts the rear side heat exchanger, the front side heat exchanger, the blower fan, and their surroundings in the air conditioner indoor unit, and dissolves in the cleaning liquid and this. Dirt and the like can flow down and can be rinsed well. The rinsing water flowing down becomes waste water and flows down directly to each drain pan or drains, or after flowing down or dripping into the waste liquid recovery tank, it flows into the drain pan below the front side heat exchanger and is drained from there. Will be.

  When the predetermined time has elapsed, the rinsing water supply operation of the cleaning liquid and rinsing water supply means is terminated, and the weak operation of the blower fan is continued for another predetermined time, for example, for about 40 seconds to 120 seconds to drain the water. I do. After the end of the predetermined time, the weak operation of the blower fan is stopped, and the recovery soot driving means is operated to retract the waste liquid recovery soot on the rear side of the air conditioner indoor unit.

This completes the cleaning operation of the built-in air conditioner cleaning device under the control of the control means.
The air conditioner indoor unit can be cleaned simply by giving a command to start cleaning to the control means using a push button switch or the like, and as described above, every corner of the air conditioner indoor unit is extremely good. Can be cleaned.

  According to the second built-in air conditioner cleaning apparatus of the present invention, the cleaning liquid and the rinsing water can be sprayed on the front side heat exchanger, the rear side heat exchanger and the blower fan with a very simple configuration. .

  According to the third built-in air conditioner cleaning device of the present invention, the waste liquid recovery tank can be retracted to the rear side of the air conditioner indoor unit and advanced below the blower fan with a very simple configuration. .

  According to the built-in type air conditioner cleaning device of 4 of the present invention, since the periodic cleaning operation is automatically performed, the cleaning operation is performed at an appropriate time without the need to manage the cleaning time of the air conditioner. The air conditioner indoor unit can be kept clean at all times.

Side surface explanatory drawing of the state which is not performing the washing | cleaning operation | movement of the air-conditioner indoor unit of one Example incorporating the built-in type air-conditioner washing | cleaning apparatus. Side surface explanatory drawing of the state which is performing the washing | cleaning operation | movement of the air-conditioner indoor unit of one Example incorporating the built-in type air-conditioner washing | cleaning apparatus. (a) is an explanatory diagram on the rear side showing the configuration of the waste liquid recovery tank and the recovery tank drive unit of the air conditioner indoor unit of the embodiment incorporating the built-in air conditioner cleaning device, and (b) is the waste liquid recovery tank and the recovery tank drive. The side explanatory view which shows the structure of a part, (c) is the fragmentary perspective view seen from diagonally upward which shows the structure of a waste liquid collection tank and a collection tank drive part. (a) is a partially cutaway sectional view taken along the length direction of the spray tube and the supply hose, and (b) is a sectional view view of the spray tube taken along a direction perpendicular to the length direction. The conceptual diagram which shows the whole structure of a built-in type air-conditioner washing | cleaning apparatus.

  A mode for carrying out the invention will be described in detail based on an embodiment with reference to the drawings.

  As shown in FIGS. 1 to 3 and 5, the built-in air conditioner cleaning apparatus of this embodiment basically includes front-side heat exchangers 1 a 1 and 1 a 2 located on the front side of a wall-mounted air conditioner indoor unit. A spray tube (spraying means) 2a disposed on the upper front surface, a spray tube (spraying means) 2b disposed on the upper rear surface of the rear side heat exchanger 1b1, and a spray tube (spraying means) 2c disposed above the blower fan 3, A supply device (supply means) 4 that selectively supplies cleaning liquid and rinse water to these spray tubes 2a, 2b, and 2c in sequence, and during the cleaning operation, retracts to the rear side of the air conditioner indoor unit and during the cleaning operation A waste liquid recovery basket 5 that advances below the blower fan 3, a recovery tank drive unit (collection tank drive means) 6 that performs the above moving operation of the waste liquid recovery tank 5, the supply device 4, and an air conditioner to be incorporated. The operation of the blower fan 3 and the recovery rod drive 6 To the controller which is constituted by the (control means) 7.

  The spray tubes 2a, 2b, and 2c are different only in the mounting positions, and as shown in FIGS. 4 (a) and 4 (b), they have the same size and shape, and the pipe bodies 2a1 (2b1, 2c1), A connecting portion 2a3 (2b3) between a large number of jet outlets 2a2 (2b2, 2c2) arranged along the length direction in the lower part of the circumference and a supply hose h formed at one end of the pipe body 2a1 (2b1, 2c1) 2c3), and the length of the pipe body 2a1 (2b1, 2c1) is the lateral length of the front heat exchangers 1a1, 1a2, the rear heat exchanger 1b1, and the blower fan 3. Let it correspond.

  In this embodiment, as described above, the pipe body 2a1 (2b1, 2c1) is provided with a large number of jets 2a2 (2b2, 2c2) as means for spraying the cleaning liquid or the like. A slit can also be formed. In this case, it is appropriate that the slits form a single line at the lower circumferential side from the one end to the other end of the pipe body 2a1 (2b1, 2c1).

  The spray pipes 2a, 2b, 2c are connected to a supply hose h at a connecting portion 2a3 (2b3, 2c3) at one end thereof, and are connected to a later-described pump 4a via the supply hose h as shown in FIG. To do.

  Among the above-described spray tubes 2a, 2b, and 2c, the spray tube 2a is disposed on the upper front portion of the front side heat exchangers 1a1 and 1a2 of the air conditioner indoor unit as shown in FIGS. The spray tube 2b is similarly attached to the upper part of the rear surface of the rear side heat exchanger 1b1 via an attachment means (not shown). The spray pipe 2c is suspended by the suspension means above the blower fan 3.

  As shown in FIG. 5, the supply device 4 includes a cleaning liquid tank 4b for storing a cleaning liquid, a rinsing water tank 4c for storing rinsing water, and a cleaning liquid in the cleaning liquid tank 4b or a rinsing water in the rinsing water tank 4c. A pump 4a that supplies the spray pipes 2a, 2b, and 2c via the supply hose h, and a switching valve 4d that switches between the cleaning liquid in the cleaning liquid tank 4b and the rinsing water in the rinsing water tank 4c. It is composed of

  The pump 4a and the switching valve 4d are not limited to specific ones as long as they have necessary functions.

  As shown in FIGS. 3 (a) to 3 (c), the waste liquid recovery basket 5 is composed of a partially arc-shaped bowl main body 5a as viewed from the side, and side wall parts 5b and 5b formed inside both ends thereof. It is.

  Further, as shown in FIGS. 1, 2 and 3 (a) to 3 (c), the recovery dredge drive unit 6 slidably supports both side ends of the dredge main body 5a, and the rear surface side of the air conditioner indoor unit. Rail members 6a and 6a for guiding between the lower side of the blower fan 3, a rack 6b formed on one outer surface of the flange main body 5a, a pinion 6c engaged with the rack 6b, and the pinion 6c are driven to rotate. This is composed of an electric motor 6d. In this embodiment, the rack 6b and the pinion 6c are configured only on the outer periphery of one side of the basket body 5a. However, the rack 6b and the pinion 6c may be configured on the outer periphery of both sides. In this case, the shaft of one pinion 6c is extended to the opposite side so as to be coaxial with the other pinion, and both the pinions 6c are rotationally driven by one electric motor 6d.

  As shown in FIG. 3 (c), the rail members 6a and 6a of this embodiment are members having a U-shaped cross section, and this is constituted by the curvature of the waste liquid collecting bowl 5, and the waste liquid collecting bowl 5 is disposed in the U-shaped groove. Each side end of the bag main body 5a is slidably inserted. As shown in FIGS. 1 and 2, the rail members 6a and 6a are installed from both sides on the rear surface side of the air conditioner indoor unit to both sides below the blower fan 3, and the lower end side thereof is the front heat exchanger 1a1. 1a2 is extended to just above the inner side of the drain pan 1a3 located below the lower end of it.

  In this embodiment, the recovery soot drive unit 6 is configured as described above, but the waste liquid recovery soot 5 is disposed between the rear side of the air conditioner indoor unit and the lower side of the blower fan 3 as necessary. If it is the structure which can be moved, it will not be limited to the above structure.

  As shown in FIG. 5, the controller 7 is provided with a cleaning start button 7a and a reset button 7b, which are push button switches, in the operation unit. When the former cleaning start button 7a is pressed, this controller 7, the cleaning operation is controlled, that is, the pump 4a, the switching valve 4d, the recovery rod drive unit 6 and the blower fan 3 of the supply device 4 are controlled to perform the cleaning operation. In addition, when the latter reset button 7b is pressed, when the built-in air conditioner cleaning device is stopped in the middle due to a power failure or any other circumstances, the pump 4a of the supply device 4, The switching valve 4d, the recovery rod drive unit 6, and the blower fan 3 are returned to their initial states.

  When the washing start button 7a of the controller 7 is pressed, specifically, the controller 7 controls the pump 4a, the switching valve 4d, the recovery rod drive unit 6 and the blower fan 3 of the supply device 4 as follows. To control.

  First, the recovery rod drive unit 6 is controlled so that the waste liquid recovery rod 5 retracted on the rear surface of the air conditioner indoor unit is advanced below the blower fan 3. More specifically, the electric motor 6d is rotationally driven, the pinion 6c coupled to the drive shaft is rotationally operated, and the waste liquid recovery basket 5 in a retreat state is placed on the rear surface of the air conditioner indoor unit via the rack 6b. It moves to the lower part of the ventilation fan 3 along the said rail members 6a and 6a. When the front end (lower end) of the waste liquid recovery basket 5 has moved to the position directly above the inner side of the drain pan 1a3 located below the lower ends of the front side heat exchangers 1a1 and 1a2, the movement operation of the waste liquid recovery basket 5 is performed. Stop.

  Next, the operation of the air conditioner to be incorporated is controlled, and the blowing operation of the blower fan 3 is started in the weakest weak operation mode among the plurality of operation modes of the air conditioner. Thereafter, the cleaning liquid and rinsing water supply device 4 is operated to supply the cleaning liquid for a certain period of time. Specifically, after switching the switching valve 4d so that the cleaning liquid tank 4b side is connected to the pump 4a, the pump 4a is operated for a predetermined time, in this embodiment, for a preset 25 seconds, and the spraying is performed. The pipes 2a, 2b and 2c are sprayed with the cleaning liquid. Subsequently, the supply target is switched from the cleaning liquid to the rinse water, and the rinse water supply operation for another predetermined time is performed. Specifically, the switching valve 4d is controlled to be switched so that the rinsing water tank 4c is connected to the pump 4a, and the rinsing water is similarly supplied to the spray pipes 2a, 2b and 2c by the pump 4a. In this embodiment, the spraying operation is performed for a predetermined time of 25 seconds.

  At the end of the fixed time, the operation of the pump 4a is stopped. In this embodiment, the weak operation mode of the blower fan 3 is continued for a predetermined time of 80 seconds, and the fixed time has elapsed. Later, the operation of the blower fan 3 is stopped, and the recovery soot driver 6 is controlled so that the waste liquid recovery soot 5 is retracted to the rear side of the air conditioner indoor unit. Specifically, the electric motor 6d is reversely driven to retract the waste liquid collecting basket 5 to the rear side of the air conditioner indoor unit.

  The controller 7 is configured to control the operations of the switching valve 4d, the recovery rod drive unit 6, and the blower fan 3 as described above.

  In this embodiment, the above controller 7 starts the control operation by pressing the cleaning start button 7a, but is provided with a timer means for periodically giving a cleaning start command to the controller 7. It is also possible.

  Therefore, according to the built-in air conditioner cleaning apparatus of this embodiment, for example, when the operation of the air conditioner is stopped at a time interval of about once a month and the cleaning start button 7a is pressed, The cleaning operation of the target air conditioner indoor unit is automatically performed.

  In advance, the cleaning liquid tank 4b of the supply device 4 is filled with the cleaning liquid, and the rinsing water tank 4c is filled with the rinsing water. Various cleaning liquids can be used, but they have sufficient cleaning power, especially the ability to decompose dry oils and fats, have antibacterial action, and have no adverse effects (corrosion, deterioration, discoloration) on air conditioner materials. It is desirable that no bad odor is generated during normal operation of the air conditioner after completion of cleaning. The rinsing water may be simply water, but preferably has antibacterial action.

  As described above, when the cleaning start button 7a is pressed while the air conditioner is stopped, the recovery dredge drive unit 6 operates and, as shown in FIG. 1, retracts to the rear side of the air conditioner indoor unit. As shown in FIG. 2, the waste liquid collecting basket 5 that has advanced advances below the blower fan 3 and stops at that position. At this time, as shown in the figure, the front end (lower end) of the waste liquid collecting basket 5 is advanced to the position directly above the inner side of the drain pan 1a3 located below the lower end of the front side heat exchangers 1a1, 1a2. It becomes.

  Next, the blowing fan 3 of the target air conditioner starts the blowing operation in the weakest operating state in the air conditioner and continues this operation.

  Thereafter, the switching valve 4d of the supply device 4 performs a predetermined switching operation, and the pump 4a performs the operation of sending the cleaning liquid in the cleaning liquid tank 4b to the spray pipes 2a, 2b, 2c, and from the spray pipes 2a, 2b, 2c. The cleaning liquid is sprayed. By spraying the cleaning liquid of the spray tubes 2a and 2b, the spray is performed on the front side of the front side heat exchangers 1a1 and 1a2 and the rear side of the rear side heat exchanger 1b1, and at this time, as described above, the blower fan 3 Is performing the air blowing operation, the cleaning liquid sprayed from the spray pipes 2a and 2b scatters widely and uniformly contacts each of the heat exchangers 1a1, 1a2, and 1b1, and further, cool air or hot air around it. It adheres widely and evenly to the flow path surface, and these cleaning actions can be performed satisfactorily.

  Further, the cleaning liquid sprayed from the spray pipe 2c is also widely scattered by the blowing action of the lower blowing fan 3, and a part thereof is the rear side and the rear side heat exchanger 1b1 of the front side heat exchangers 1a1 and 1a2. Others adhere to the blower fan 3 while being diffused by the blower action of the blower fan 3, and perform a cleaning action on these. Since the cleaning action for the blower fan 3 itself is rotating, the cleaning liquid can be uniformly contacted with the respective parts, and can be performed very well.

  Thus, the cleaning liquid used for the cleaning action gradually flows down, part of which becomes waste liquid and flows down to the drain pan 1b2 disposed below the rear side heat exchanger 1b1, and the other part becomes waste liquid. The washing waste liquid that flows down to the drain pan 1a3 arranged below the side heat exchangers 1a1 and 1a2 and further descends at the other central side flows down onto the waste liquid recovery basket 5. The washing waste liquid that has flowed down on the waste liquid recovery tank 5 flows according to the inclination, and flows from the tip (lower end) into the drain pan 1a3 below the front-side heat exchangers 1a1 and 1a2. The washing waste liquid that has flowed down into the drain pans 1a3 and 1b2 is drained according to the drainage system through piping or the like arranged in the air conditioner. Thus, the washing waste liquid is drained without requiring any special operation.

  When the cleaning operation for a predetermined time (25 seconds in this embodiment) is completed in this way, the switching valve 4d of the supply device 4 performs a predetermined switching operation, and the pump 4a supplies the rinse water in the rinse water tank 4c to the spray pipe 2a. 2b and 2c are sent out, and the rinse water is sprayed from the spray tubes 2a, 2b and 2c. This rinsing water spray is performed in exactly the same manner as described above with respect to the cleaning liquid spray, and includes the rear side heat exchanger 1b1, the front side heat exchangers 1a1, 1a2, the blower fan 3 and their surroundings in the air conditioner indoor unit. The cold air and the hot air are uniformly brought into contact with the inner surface of the flow path to allow the cleaning liquid and dirt dissolved therein to flow down well and to rinse each of them well. The rinsing water that flows down becomes waste water and flows down directly to the drain pans 1a3 and 1b2, or drains onto the waste liquid recovery tank 5, and then the drain pan below the front heat exchangers 1a1 and 1a2. It flows into 1a3 and is drained from here.

  Thus, when a predetermined time (in this example, 25 seconds) elapses, the operation of the pump 4a of the supply device 4 is stopped, and the supply operation of the rinse water is finished. After this, only the weak operation of the blower fan 3 continues, and this is performed for a predetermined time (80 seconds in this embodiment), and draining is performed. When the draining time has elapsed, the weak operation of the blower fan 3 is stopped, the recovery soot drive unit 6 operates in the opposite direction to the initial state, and as shown in FIG. Retreat to the rear side of the aircraft. Thus, the cleaning operation by the built-in air conditioner cleaning apparatus of this embodiment is completed.

  By simply pressing the cleaning start button 7a, the air conditioner indoor unit can be cleaned, and as described above, the entire interior of the air conditioner indoor unit can be cleaned extremely well.

1a1 Front side heat exchanger (upper side)
1a2 Front side heat exchanger (lower side)
1a3 Drain pan 1b1 Rear side heat exchanger 1b2 Drain pan 2a Spray pipe (spraying means) arranged on the upper front of the front side heat exchanger
2a1 Pipe body 2a2 Spout 2a3 Connection 2b Spray pipe (spraying means) arranged on the rear upper part of the rear heat exchanger
2b1 Pipe body 2b2 Spout 2b3 Connection 2c Spray pipe (spraying means) arranged above the blower fan
2c1 Pipe body 2c2 Spout 2c3 Connection part 3 Blower fan 4 Supply apparatus (supply means)
4a Pump 4b Cleaning liquid tank 4c Rinse water tank 4d Switching valve 5 Waste liquid recovery tank 5a Wall body 5b Side wall section 6 Recovery tank driving section (Recovering tank driving means)
6a Rail member 6b Rack 6c Pinion 6d Electric motor 7 Controller (control means)
7a Cleaning start button 7b Reset button h Supply hose

Claims (4)

Spraying means for cleaning liquid and rinse water respectively disposed on the front upper part of the front side heat exchanger of the wall-mounted air conditioner indoor unit, the rear upper part of the rear side heat exchanger and the blower fan;
Cleaning liquid and rinsing water supply means for selectively supplying cleaning liquid and rinsing water to the spraying means, attached to the outside of the casing of the air conditioner indoor unit,
A waste liquid recovery tank for recovering cleaning waste liquid that stands by and waits on the rear side of the air conditioner indoor unit, and is disposed below the blower fan during a cleaning operation by the spraying means and the cleaning liquid and rinsing water supply means. A waste liquid recovery tank for advancing and receiving cleaning waste liquid flowing down from the blower fan and its surroundings and introducing it into a drain pan below the front heat exchanger,
A recovery rod driving means for performing a retracting operation of the waste liquid recovery rod to the rear side of the air conditioner indoor unit and an advance operation of the blower fan downward;
When a command to start cleaning is given, the recovery soot driving means is controlled to advance the waste liquid recovery soot that is retracted on the rear surface of the air conditioner indoor unit below the blower fan, and then the fan fan is operated weakly. After that, the cleaning liquid and the rinsing water supply means are allowed to supply the cleaning liquid for a certain period of time, thereby causing the spraying means to spray the cleaning liquid. Subsequently, the supply target is switched from the cleaning liquid to the rinsing water. The rinsing water supply operation is performed for another predetermined time, thereby causing the spraying means to perform the rinsing water spraying operation. After the end, the weak operation of the blower fan is continued for another predetermined time, Control means for controlling the recovery soot drive means to retract the waste liquid recovery soot to the rear side of the air conditioner indoor unit after the completion;
Built-in air conditioner cleaning device composed of   The spraying means is disposed on a lateral pipe body having a length corresponding to a lateral length of each of the front side heat exchanger, the rear side heat exchanger, and the blower fan, and on a lower peripheral side of the pipe body. The built-in air conditioner cleaning apparatus according to claim 1, wherein the built-in air conditioner cleaning apparatus includes a plurality of jet outlets arranged along the length direction or jet slits formed along the length direction.   A rail member that slidably supports both sides of the waste liquid recovery tank and guides between the rear side of the air conditioner indoor unit and the lower side of the blower fan, and one side of the waste liquid recovery tank The built-in air conditioner cleaning apparatus according to claim 1 or 2, comprising a rack configured on the outer surface, a pinion meshing with the rack, and an electric motor that rotationally drives the pinion.   4. The built-in air conditioner cleaning apparatus according to claim 1, wherein timer means for giving a command to start cleaning periodically is attached to the control means.

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