KR101086607B1 - Air conditioner having indoor unit with automatic air filter cleaning function - Google Patents

Abstract

The fan which blows air heat-exchanged with the heat exchanger and the heat exchanger inside the indoor unit main body of an air conditioner is accommodated, and the air filter was attached to the main body upstream of a heat exchanger. In addition, a suction exhaust device is provided which has a suction port facing the air filter, and freely attaches a suction nozzle for suctioning dust attached to the air filter, and communicates with the suction nozzle to suck and exhaust dust together with air.

Description

Air conditioner with indoor unit with automatic cleaning function of air filter {AIR CONDITIONER HAVING INDOOR UNIT WITH AUTOMATIC AIR FILTER CLEANING FUNCTION}

The present invention relates to an air conditioner having a function of automatically cleaning an air filter installed at an air inlet of an indoor unit.

In the conventional air conditioner, as shown in FIG. 28 and FIG. 29, the air filter 6 is installed in the front surface of the heat exchanger 11 in order to prevent dust from invading inside the main body 13. The air filter 6 is freely attached and detached so that the attached dust can be cleaned by hand.

Moreover, as an air conditioner which facilitates cleaning of an air filter, it is provided by the rotating brush, the brush cover which supports the rotating brush freely while rotating, and is coaxially provided with the rotating brush. A filter brush formed as a pinion is provided, the suction nozzle of the vacuum cleaner is connected to the suction port provided in the brush cover, and the air filter is moved and deposited on the air filter. Some dusts are sucked while scraping off with a rotary brush (see Patent Document 1, for example).

In addition, a collecting device, a cleaning device, a suction device, a supporting beam connected to the suction mechanism, a hose connected to the supporting beam, and a vacuum It has also been proposed to include a generator and a separator arranged on the suction side of the vacuum generator so as to automatically suck dust attached to the air filter and to collect the dust with the separator (for example, Patent Document 2). Reference).

In addition, a drive shaft and a driven shaft provided with an extended belt-shaped air filter, a servo motor for driving the drive shaft, a brush, and a dust sensor disposed in the exhaust pipe ) And a fan, an arithmetic processing means for calculating the continuous use time of the air filter, and a control means, and some may be used to remove dust with a brush while rotating the belt-shaped air filter (for example, See Patent Document 3).

(Patent Document 1)

Japanese Patent Laid-Open No. 11-226331 (Second page, Figs. 1 to 4)

(Patent Document 2)

Japanese Patent Laid-Open No. 1-75020 (1st to 9th pages, Fig. 4).

(Patent Document 3)

Japanese Patent Laid-Open No. 6-74521 (page 2, Fig. 1)

However, in a conventional air conditioner equipped with a detachable air filter, the air filter is detached from the air conditioner according to the frequency of use of the air conditioner, and the dust attached by water washing or a vacuum cleaner is cleaned. It was necessary to do maintenance to say regularly and was troublesome. When periodic maintenance is not performed, dust accumulates in the air filter and the ventilation resistance of the intake air increases, which results in a problem that the performance of the air conditioner decreases or power consumption increases.

In addition, in what is disclosed in patent document 1, an electric vacuum cleaner is taken out every time an air filter is cleaned, the suction nozzle must be connected to the suction port of a brush cover, and it must move on an air filter, and it requires very trouble and time. There was problem to say.

In addition, in the case of the filter device described in Patent Document 2, the dust adhered to the air filter is automatically sucked, but since the sucked dust is collected in the separator, it is necessary to periodically remove and treat the dust deposited on the separator, which is cumbersome. At the same time, if neglected, the dust adhered to the air filter is not removed, and the air resistance of the intake air increases, resulting in a decrease in the performance of the air conditioner or an increase in power consumption.

In addition, in the case of the air conditioner disclosed in Patent Document 3, since a long brush having a length substantially equal to the full width of the air filter is required, and because the air filter is in the form of a belt, the thickness increases, and There was a problem that the size of depth increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the prior art, and it is possible to efficiently suck dust with a small suction force, and the interior of the air filter with the automatic cleaning function of the air filter is extremely easy to clean and maintain the air filter. It aims at providing the air conditioner provided with a unit.

In order to achieve the above object, the present invention relates to an air conditioner having an indoor unit accommodating a heat exchanger and a fan for blowing air heat-exchanged with the heat exchanger to a main body, wherein An air filter attached to the main body, a suction nozzle freely sliding to suck the dust attached to the air filter provided with an intake port facing the air filter, and a suction and exhaust air in communication with the suction nozzle. A suction exhaust device is provided.

By this structure, cleaning of an air filter can be performed reliably automatically, and the performance of an air conditioner can be maintained, or the increase of power consumption can be prevented.

In addition, an exhaust duct having one end connected to the suction exhaust device and the other end opened to the outside is provided, and the dust sucked by the suction nozzle is discharged to the outdoor with air through the exhaust duct. In this way, indoor air can be kept clean at all times.

Moreover, when a brush is provided adjacent to the suction port of a suction nozzle, dust can be reliably suctioned with a small suction force. The same effect can be obtained by interposing an air filter between the suction port of the suction nozzle and providing a support plate which slides together with the suction nozzle, or by installing a brush in contact with the back surface of the air filter.

1 is a front view of an indoor unit of an air conditioner according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line I-I of FIG. 1. FIG.

3 is a cross-sectional view taken along the line II-II in FIG. 1.

4 is a perspective view of a filter device installed in an indoor unit;

5 is an exploded perspective view of the filter device of FIG. 4.

6A is a side view of a suction nozzle installed in the filter device.

6B is a front view of the suction nozzle of FIG. 6A.

7 is a perspective view of a filter constituting the filter device;

8A is a side view of a modification of the suction nozzle.

8B is a front view of the suction nozzle of FIG. 8A.

9 is a perspective view of a filter device installed in an indoor unit of an air conditioner according to a second embodiment of the present invention.

10 is a cross-sectional view of the suction nozzle installed in the filter device of FIG.

11 is a cross-sectional view taken along the line III-III in FIG. 10.

12 is a cross-sectional view taken along line III-III of FIG. 10 showing a modification of the suction nozzle.

13 is a cross-sectional view taken along the line III-III of FIG. 10 showing another modified example of the suction nozzle;

Fig. 14 is a sectional view of an indoor unit of an air conditioner according to a third embodiment of the present invention.

FIG. 15 is a perspective view of a suction mechanism part of the filter device installed in the indoor unit of FIG. 14. FIG.

FIG. 16 is a rear view of the suction mechanism part of FIG. 15, in particular showing a state in which a connection port communicating with the suction duct is lowered; FIG.

FIG. 17 is a rear view of the suction mechanism part of FIG. 15, in particular, a view showing a state in which a connection port communicating with the suction duct is raised; FIG.

18 is an exploded perspective view of the suction nozzle;

19A is a front view of a cam with a gear provided in the connection port;

19B is a rear view of the cam with a gear of FIG. 19A.

19C is a sectional view of the cam with a gear of FIG. 19A.

20 is a perspective view of a filter device provided in an indoor unit of an air conditioner according to a fourth embodiment of the present invention.

21 is a sectional view of an indoor unit.

FIG. 22 is an enlarged view of part B of FIG. 21;

FIG. 23 is an enlarged view of part C of FIG. 21;

24 is a cross-sectional view taken along line I-I of FIG. 1 of an indoor unit of an air conditioner according to a fifth embodiment of the present invention.

25 is a cross-sectional view taken along the line II-II of FIG. 1 of the indoor unit of FIG.

FIG. 26 is a perspective view of the filter device installed in the indoor unit of FIG. 24; FIG.

Fig. 27A is a sectional view in the longitudinal direction of the suction nozzle constituting the filter device.

It is sectional drawing of the width direction of the suction nozzle which comprises a filter apparatus.

28 is a front view of an indoor unit of a conventional air conditioner.

29 is a cross-sectional view taken along the line IV-IV in FIG. 28.

EMBODIMENT OF THE INVENTION Below, embodiment of this invention is described, referring drawings.

(First Embodiment)

1 to 3 show an indoor unit of the air conditioner according to the first embodiment of the present invention, in which FIG. 1 is a front view of the indoor unit, and FIGS. 2 and 3 are lines I-I in FIG. 1, respectively. And sectional view along the line II-II. 4 and 5 are a perspective view and an exploded perspective view of the filter device installed in the indoor unit, respectively, and FIGS. 6A and 6B are side and front views showing the appearance of the suction nozzle provided in the filter device.

Inside the indoor unit main body 13, a fan for receiving indoor air through the heat exchanger 11 and the heat exchanger 11, and blowing air heat-exchanged in the heat exchanger 11 to the room. The fan 12 and the filter apparatus 1 arrange | positioned upstream of the heat exchanger 11 are accommodated, and the some inlet port formed over the upper surface from the front surface of the main body 13 ( Air is sucked in by the operation of the fan 12, and dust floating in the air is removed by the filter device 1 provided between the suction port and the heat exchanger 11).

This filter device 1 has a left and right direction (horizontal direction) along the filter frame 2, the air filter 6 attached to the filter frame 2, and the upstream side of the air filter 6; : The suction nozzle 5 freely sliding to arrow A) and the main body 13 of one of the filter frames 2 (lower in this embodiment) are attached to one end of the suction nozzle 5. The suction duct 3 connected to the suction duct 3 while maintaining the airtightness, the suction exhaust apparatus 7 connected to the suction duct 3 to suck and exhaust dust together with air, and one end of the suction exhaust The exhaust duct 8 which is connected to the apparatus 7 and the other end opened to the outside is provided.

As shown in FIGS. 6A and 6B, the suction nozzle 5 is formed in a longitudinal length in which an intermediate portion is bent, extends in the vertical direction, and has a slit shape on the side facing the air filter 6. Inlet 5a is provided.

The drive means for sliding the suction nozzle 5 from side to side is for driving the drive wire 9 and the drive wire 9 connected to the suction duct 3 side of the suction nozzle 5. It consists of the drive motor 10.

In addition, although the air filter 6 shown in FIG. 4 and FIG. 5 attaches and detaches freely to the filter frame 2, the filter frame 2 may be a part of the main body 13, and the air filter ( 6) is fixed to the main body 13, and it can also be set as the structure which cannot be attached or detached.

FIG. 7 shows the air filter 6, which is constructed using a net 6a of which less unevenness is knitted, and the suction port 5a provided in the suction nozzle 5 is shown in FIG. On the surface, the surface side to which dust adheres is formed so that the level | step difference between mesh 6a and the mesh frame 6b may not arise.

The operation of the filter device 1 configured as described above will be described.

After the operation stop of the air conditioner main body 13, the suction exhaust apparatus 7 starts operation and starts to suck in air from the suction port 5a provided in the suction nozzle 5 provided in the suction duct 3. . Then, the suction nozzle 5 located at one end of the air filter 6 is moved in the direction of arrow A by the driving wire 9 connected to the drive motor 10 as shown in Figs. 4 and 5. Then, the dust adhering to the surface of the air filter 6 is sucked through the suction port 5a provided in the suction nozzle 5, and the dust passes through the suction duct 3 and the suction exhaust device 7, and the exhaust duct It is discharged outdoors from (8).

Here, when the suction nozzle 5 cleans the surface of the air filter 6 with respect to the whole surface, and moved to the opposite end, the drive motor 10 reverses rotation, and the suction nozzle 5 returns to the initial position. By moving in the returning direction, the surface of the air filter 6 can be cleaned again.

In addition, by using the air filter 6 having the flat surface on which dust adheres, dust can be easily absorbed by the suction nozzle 5, and cleaning can be performed more reliably.

In addition, when the air filter 6 is detachably attached to the main body 13, it is possible to easily clean dust, oil and the like which could not be removed in the suction cleaning operation of the suction nozzle 5.

8A and 8B show a modification of the suction nozzle 5, and the suction ports 5a of a plurality (for example, two rows) extending in parallel with the suction nozzle 5 are spaced at predetermined intervals. In addition, the brush 5b adjacent to the suction port 5a is provided.

When the suction nozzle 5 is used, the suction nozzle 5 is moved in the arrow A direction by the drive wire 9 connected to the drive motor 10 during the operation of the filter device 1, and the suction nozzle The brush 5b of (5) sucks in the plurality of rows of inlets 5a while scraping off the dust adhering to the surface of the air filter 6, and the dust passes through the suction duct 3 and the suction exhaust device 7. The exhaust duct 8 is discharged to the outdoors.

By providing the brush 5b adjacent to the suction port 5a, dust can be reliably sucked with a small suction force.

In addition, in the said embodiment, although the suction exhaust apparatus 7 was made to start operation after the operation | movement stop of the air conditioner main body 13, the suction exhaust apparatus 7 before or during operation of the air conditioner main body 13 is carried out. ) May be driven.

In addition, in the said embodiment, although the exhaust duct 8 was connected to the suction exhaust apparatus 7, the dust suctioned by the suction exhaust apparatus 7 was discharged | emitted with air outside, but the exhaust duct 8 is It is not necessary to install it. In this case, a detachable dust collecting case having a dust collecting net is provided in the suction exhaust device 7, and dust collected by the suction exhaust device 7 is collected by the dust collecting net, and together with the dust. The suctioned air may be discharged from the suction exhaust device 7, and the dust collected by the dust collection network can be removed by removing the dust collection case from the suction exhaust device 7.

(2nd Embodiment)

Fig. 9 shows a filter device 1 installed in an indoor unit of an air conditioner according to a second embodiment of the present invention, which faces the inlet port 5a of the nozzle 5 with an air filter 6 interposed therebetween. There is a difference from the above-mentioned 1st Embodiment in the point which provided the support plate 14 of vertically long shape.

10 and 11, the upper and lower ends of the support plate 14 are connected to the upper end 5b and the lower end 5c of the suction nozzle 5, respectively, and are integrally formed with the suction nozzle 5. have.

In this embodiment, when the support plate 14 is provided in the position which opposes the nozzle suction port 5a of the back surface side of the air filter 6, the support plate at the time of the left-right direction movement of the suction nozzle 5 is carried out. Since the extra air is not sucked up from the inlet port 5a while moving 14, too, the dust adhering to the air filter 6 can be reliably sucked with a small suction force.

Further, since the upper and lower ends of the support plate 14 are attached to the upper end portion 5b and the lower end portion 5c of the suction nozzle 5, respectively, the positional relationship between the support plate 14 and the suction port 5a is stabilized, and the suction operation is performed. Stabilization can be achieved.

As shown in Fig. 11, if the gap B between the support plate 14 and the air filter 6 is always set to be 1 mm or less, stable dust suction without leaking can be performed.

12 shows a modification of the base plate 14, and the inclined surface 14a is provided at both left and right edge portions of the base plate 14. The cross-sectional shape is formed in the shape of a mountain toward the nozzle inlet 5a, so that the support plate 14 can be reliably prevented from being caught by the air filter 6 during the movement of the suction nozzle 5, Smooth movement and suction operation can be ensured.

13 shows another modified example of the support plate 14, and the brush 15 is provided on the support plate 14 in contact with the rear surface of the air filter 6, and the air filter 6 cannot be sucked. The dust left in the brush is scraped off with a brush 15.

(Third Embodiment)

14 to 18 show an indoor unit of the air conditioner according to the third embodiment of the present invention, FIG. 14 is a sectional view of the indoor unit, FIG. 15 is a perspective view of a suction mechanism part of the filter device installed in the indoor unit, and FIG. 16. And FIG. 17 is a partial sectional view of the suction mechanism part seen from the back side, and FIG. 18 is an exploded perspective view of the suction nozzle.

As shown in FIG. 16, the suction duct 3 is formed in the cylinder shape, one end is connected to the suction unit (not shown), and the other end is closed. On the upper surface of the suction duct 3, the opening part 3a is provided in a back pitch, and the opening-closing lid 16 is attached, respectively. The opening / closing lid 16 is normally closed to close the opening portion 3a by a spring attached to the opening / closing lid 16.

The connection port 17 is freely inserted in the suction nozzle 5 in the up-and-down direction in the fitting groove 5d. Moreover, the gear 19 integrated with the cam 18 is attached to the attachment boss 5e as the screw 20, and rotation is freely attached. As shown to FIG. 19A-19C, the groove | channel 18a is formed in the cam 18, and the pin 17a provided in the connection port 17 is fitted.

The suction nozzle 5 is attached to the shaft 21 provided in the front of the air filter 6 of the main body, and the movement is freely attached to the left and right direction by the hole 5f and the guide 5g. In addition, the suction nozzle 5 and the connection port 17 are connected by the corrugated pipe 22 which can expand and contract freely.

The suction nozzle 5 is fitted and fixed by a timing belt 23 provided in a loop shape in the longitudinal direction and a fitting rib 5j disposed in the suction nozzle 5. It moves to the left and right as the rotation speed of the timing belt 23.

The timing belt 23 passes through the timing belt passage hole 5h provided in the suction nozzle 5 as shown in FIG. 18, and the timing belt 23 passing through the upper part is fitted with the suction nozzle 5. Although fixed at 5j, the timing belt 23 passing through the lower portion rotates the gear 19.

In this embodiment, since the suction nozzle 5 intermittently communicates with the suction duct 3, as shown in FIG. 15, the surface which opposes the air filter 6 of the suction nozzle 5 is shown. Is formed wider than the above-described first or third embodiment.

Since the other structure is the same as the structure of 1st Embodiment mentioned above, the description is abbreviate | omitted.

The flow of air in the above configuration is as follows.

When the suction unit operates when the suction nozzle 5 is in the position of FIG. 16, the dust and air attached to the air filter 6 pass through the suction port 5a, and then the suction nozzle 5 and the connection port ( It passes through the corrugated pipe 22 which connects 17, and it reaches | attains the connection port 17. FIG. At this time, the connection port 17 is in the state lowered by the cam 18, and the connection port 17 and the suction duct (in the state which pushed down the opening / closing lid 16 at the front-end | tip of the connection port 17) ( 3) is connected, and air and dust are directed to the suction unit. An O-ring 24 is provided at the tip of the connector 17 to prevent leakage of air.

Subsequently, when a certain time elapses, suction of the suction unit is stopped, and as shown in FIG. 17, the timing belt 23 starts to move in the direction of the arrow, and at the same time, the gear 19 rotates by the timing belt 23. The grooves 18a provided in the cam 18 integrated with the gear 19 move the pins 17a of the connector 17 upwards, so that the connector 17 moves upward while moving to the right. . As a result, the opening and closing lid 16 starts to close. When the gear 19 rotates by 90 degrees, the ascending of the connection port 17 is stopped, and the gear 19 further rotates so that the connection port 17 starts to descend, and at the time when the connection port 17 is rotated 180 degrees, the connection port 17 is rotated. The next opening / closing lid 16a is opened, and the suction nozzle 5 and the suction duct 3 are connected to start the next suction.

As mentioned above, the suction duct is made into the shape of a cylinder, and the connection port which has an opening-closing lid is provided, and the connection port 17 of the suction nozzle 5 is sequentially connected to the opening part 3a of the suction duct 3, and suction is performed. Since the nozzle is connected to the suction duct, the connection between the suction duct and the suction nozzle can be connected without generating air leakage, and the storage capacity can be improved by making the suction duct into a cylindrical shape. In addition, dust can be easily removed and can also contribute to prevention of deterioration of the air conditioner.

(Fourth Embodiment)

Fig. 20 is a perspective view of the filter device 1 installed in the indoor unit of the air conditioner according to the fourth embodiment of the present invention, wherein the suction exhaust device 7 is a suction hose 25 freely stretchable from the suction nozzle 5. The structure which draws in air through air, and exhausts it outdoors through the exhaust duct 8 is shown.

21 is sectional drawing of an indoor unit, and FIG. 22 is an enlarged view of the lower part of the suction nozzle 5 in the part B of FIG. As shown in FIG. 22, the pulley 26 is connected to the suction nozzle 5 by the pin 27, and there is a clearance between the pulley 26 and the pin 27, and the pulley 26 is shown. Can rotate freely about the pin 27 as an axis. A groove slightly wider than the wheel width of the pulley 26 is provided in the lower rail 4a, and the pulley 26 moves along the groove in the direction of arrow A in FIG.

FIG. 23 is an enlarged view of the upper portion of the suction nozzle 5 in the part C of FIG. 21, in which the pulley 28 is attached to the suction nozzle 5, and the E-ring 29 is pulley 28. ) Is prevented from falling out.

Similarly to the lower rail 4a, the upper rail 4b is provided with a groove slightly wider than the wheel width of the pulley 28, and the pulley 28 moves along the groove in the direction of arrow A in FIG. The suction port 5a provided in the suction nozzle 5 moves while keeping a distance from the surface of the air filter 6.

Since the other structure is the same as the structure of 1st Embodiment mentioned above, the description is abbreviate | omitted.

The operation of the filter device 1 configured as described above will be described.

After the operation stop of the air conditioner main body 13, the suction exhaust apparatus 7 starts operation and starts to inhale air from the suction port 5a provided in the suction nozzle 5 provided in the suction hose 25. . Then, the suction nozzle 5 located at one end of the air filter 6 is moved in the direction of the arrow A by the drive wire 9 connected to the drive motor 10 to move the suction nozzle 5. Accordingly, the suction hose 25 is stretched. Dust adhering to the surface of the air filter 6 is sucked by the suction nozzle 5 and discharged from the exhaust duct 8 to the outside through the suction hose 25.

(5th Embodiment)

24 and 25 show the indoor unit of the air conditioner according to the fifth embodiment of the present invention, and the first embodiment described above in that the sliding nozzle 5 is freely set in the front, rear, and vertical directions. There is a difference from the indoor unit of the air conditioner according to the fourth embodiment.

24 and 25 are cross-sectional views (I-I cross section and II-II cross section of Fig. 1) of the indoor unit according to the present invention, Fig. 26 is a perspective view of the filter device, and Figs. 27A and 27B constitute a filter device. It is sectional drawing of the suction nozzle in the longitudinal direction and the width direction.

The filter device 1 according to the present embodiment includes the suction nozzle 5 freely sliding in the front and rear and up and down directions (arrow A) along the upstream side of the air filter 6, and the filter frame 2. The suction duct 3 which is disposed on one side and is connected to the suction duct 3 to which the sliding movement is freely connected while one end of the suction nozzle 5 is airtight, and sucks and exhausts dust together with air (7) and an exhaust duct 8 having one end connected to the suction exhaust device 7 and the other end opened to the outside.

The drive means for moving the suction nozzle 5 back and forth and up and down includes a drive wire 9 connected to both sides of the suction nozzle 5 and a drive motor 10 for driving the respective drive wire 9. It is configured as.

26 and 27, the suction nozzle 5 is laterally elongated so as to extend in the horizontal direction, and the reinforcement grate 5b formed integrally with the suction nozzle 5 on the side facing the air filter 6. A plurality of suction ports 5a partitioned by) are provided.

Since the other structure is the same as the structure of 1st Embodiment mentioned above, the description is abbreviate | omitted.

The operation of the filter device 1 configured as described above will be described.

After the operation stop of the main body 13, the suction exhaust apparatus 7 starts operation and starts to suck in air from the intake port 5a of the suction nozzle 5 provided in the suction duct 3. Then, the suction nozzle 5 located at one end of the air filter 6 starts to move in either direction of the arrow A direction by the drive wire 9 connected to the drive motor 10, and the air is moved during the movement. The dust on the filter 6 is sucked by the suction port 5a of the suction nozzle 5, passes through the suction duct 3 and the suction exhaust device 7, and is discharged to the outside through the exhaust duct 8.

If the entire surface of the air filter 6 is cleaned while the intake nozzle 5 moves from one end to the opposite end, and the drive motor 10 is reversely rotated at that time, the intake nozzle 5 is operated at the initial stage. By moving to the position, it becomes possible to clean the surface of the air filter 6 again.

In addition, in this embodiment, since the suction nozzle 5 was formed long horizontally and the sliding movement was comprised freely in the front-back direction and the up-down direction, the wide range of the air filter 6 was sucked in dust for a short time, and cleaning was performed. can do.

Moreover, since the drive wire 9 was attached to the left and right both places of the suction nozzle 5, and each drive wire 9 was driven by the drive motor 10, the long suction nozzle 5 was carried out. Both ends of the support can be driven to stabilize the movement of the suction nozzle and the suction operation.

In addition, in this embodiment, as shown to FIG. 26 and FIG. 27A, the reinforcement grate 6a which is formed integrally with the air filter 6, and reinforces the air filter 6, and the suction nozzle 5, Since the reinforcement grate 5b which forms the suction port 5a is set to oppose, it can reinforce without dropping the suction force of the suction nozzle 5.

In addition, as shown in FIG. 26, the suction duct 3 is formed in substantially L shape and arrange | positioned to one side (left side in FIG. 26) of the main body 13, and the operation | movement of the suction nozzle 5 is carried out. The suction or exhaust can be carried out efficiently in accordance with.

In addition, in this embodiment, as shown in FIG. 25, by arranging the suction exhaust apparatus 7 below the L-shaped suction duct 3, the dust in the suction duct 3 flows smoothly from top to bottom, It can surely suck dust.

Claims (18)

An air conditioner having an indoor unit in which a heat exchanger and a fan for blowing air heat-exchanged with the heat exchanger into a room are accommodated in a main body, An air filter attached to the main body on the upstream side of the heat exchanger, a suction nozzle free of sliding movement for suctioning dust attached to the air filter opposite to the air filter, and in communication with the suction nozzle A suction exhaust device which sucks and exhausts dust together with air, The suction nozzle is freely attached to the suction duct, the suction nozzle is connected to the suction exhaust apparatus through the suction duct, and a plurality of openings which can be opened and closed to the suction duct are predetermined pitch. And the suction nozzle is sequentially connected to the plurality of openings so that the suction nozzle is connected to the suction duct. The method of claim 1, An air conditioner, further comprising an exhaust duct having one end connected to the suction exhaust device and the other end opened to the outside. The method according to claim 1 or 2, An air conditioner provided with a brush adjacent to a suction port of said suction nozzle. The method according to claim 1 or 2, An air conditioner provided with a support plate sandwiching the air filter so as to slide together with the suction nozzle to face the suction port of the suction nozzle. 5. The method of claim 4, And the support plate is formed integrally with the suction nozzle. 5. The method of claim 4, An air conditioner, wherein the distance between the air filter and the support plate is set to 1 mm or less. 5. The method of claim 4, And an inclined surface at both edges of the support plate. 5. The method of claim 4, The air conditioner provided with the said brush in contact with the back surface of the said air filter. The method according to claim 1 or 2, And the suction nozzle is extended so as to extend in the vertical direction so as to slide in the horizontal direction. delete The method according to claim 1 or 2, And the suction nozzle communicates with the suction exhaust device through a freely stretchable suction hose. The method according to claim 1 or 2, A drive means for sliding the suction nozzle is constituted by a drive wire and a drive motor for driving the drive wire. delete The method according to claim 1 or 2, And the suction nozzle is extended so as to extend in the horizontal direction so as to slide in the front, rear, and up and down directions. The method of claim 14, A drive unit for sliding the suction nozzle is constituted by a drive wire and a drive motor for driving the drive wire. The method of claim 14, And the air filter attached to the main body so that an air filter reinforcement grate integrally formed with the air filter and a suction nozzle reinforcement grate integrally formed with the suction nozzle face each other. The method of claim 14, An L-shaped suction duct communicating with the suction nozzle is disposed on one side of the main body. The method of claim 14, And the suction exhaust device is disposed below a suction duct communicating with the suction nozzle.

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