KR101466295B1 - Ceiling type air conditioner - Google Patents

Abstract

The ceiling type air conditioner of the present invention includes a dust collecting unit for collecting foreign matter filtered by a filter and a moving unit connected to the dust collecting unit to move the dust collecting unit to a position where foreign matter stored in the dust collecting unit is discharged . Accordingly, since the filter is automatically cleaned by moving the dust collecting unit, the foreign matter filtered by the filter is effectively collected and stored, thereby preventing contamination of the filter.

In addition, since the foreign matter stored in the dust collecting unit can be discharged to the outside after the dust collecting unit is moved to one end of the filter housing, there is no need for the user to directly replace or clean the filter or the dust collecting unit. There is an advantage that the inconvenience caused by the cleaning operation can be solved.

Base panel, dust collector, filter, filter housing, wire belt, drive pulley, tension pulley, interlocking pulley

Description

Ceiling type air conditioner

The present invention relates to a ceiling-type air conditioner, and more particularly, to a ceiling-type air conditioner capable of automatically cleaning a filter by moving a dust collecting unit collecting and storing foreign matters filtered by the filter.

In general, a ceiling-mounted air conditioner includes an indoor unit installed at an upper side of a ceiling to perform a cooling function, an outdoor unit performing a heat radiating and compressing function, and a refrigerant pipe connecting the indoor unit and the outdoor unit to each other, And is disposed in the inner space.

However, in the ceiling type air conditioner according to the related art, foreign matter of air introduced into the indoor unit accumulates in the indoor unit, so that the interior of the indoor unit is insufficiently protected and the air in the room to be air-conditioned is also contaminated.

In addition, even when the foreign matter in the air sucked into the ceiling-type air conditioner is filtered by the filter, the amount of foreign matter collected in the filter increases to obstruct the flow of air passing through the inside of the indoor unit, And the filter must be installed so as to be detachable for replacement or cleaning of the filter. Therefore, there is a problem that layout of the filter peripheral parts as well as installation position and installation method of the filter are restricted. Further, since the user must directly replace or clean the filter, there is a disadvantage that the filter is deteriorated due to inconvenience due to replacement or cleaning of the filter, and unpleasantness due to the contaminated state of the filter.

An object of the present invention is to provide a ceiling-type air conditioner capable of automatically cleaning a filter by moving a dust collecting unit for collecting and storing foreign matters filtered by the filter.

A ceiling-type air conditioner of the present invention comprises a case disposed in a ceiling and having a predetermined space formed therein, a base panel coupled to the case and having an air intake port formed on one side thereof, a filter disposed on the air intake port side, A dust collector for collecting and storing foreign matter; And a moving unit connected to the dust collecting unit to move the dust collecting unit to a position where the foreign matter stored in the dust collecting unit is discharged.

In the present invention, it is preferable to further include a filter housing on which the filter is seated, wherein the moving unit includes: a driving motor disposed at at least one side of the filter housing; a driving motor connected to the dust collecting unit, And a power transmitting portion for transmitting the power to the unit.

In the present invention, the dust collecting unit is coupled to the filter housing and is linearly reciprocally movable along the filter housing by the power transmitted from the power transmitting unit. In this case, the dust collecting unit may include a brush contacting the foreign matter filtered by the filter, a main body having a predetermined space formed therein for collecting and storing foreign substances separated from the filter by being in contact with the brush, And may further include a plurality of rollers disposed.

In the present invention, at least one side of the filter housing is provided with a flow prevention portion for supporting both sides of the main body to guide the movement of the dust collecting portion and preventing detachment of the main body, And can be rolled by the power transmitted from the power transmitting portion. In this case, the flow preventing portion may include a support surface extending downward from both ends of the filter housing parallel to the longitudinal direction of the filter housing to support both ends of the dust collecting portion in the longitudinal direction, and a support surface extending in parallel to the filter housing at the end of the support surface And a detachment preventing surface for preventing detachment of the dust collecting portion downward.

In the present invention, at least one roller of the plurality of rollers may be disposed and rolled so as to be supported by the support surface, and at least one roller may be disposed and rolled so as to be supported by the detachment prevention surface.

The power transmission unit may include a driving pulley connected to the rotating shaft of the driving motor and a wire belt wound around the driving pulley and connected to the dust collecting unit to transmit the power of the driving motor to the dust collecting unit . At this time, a wire connecting portion to which the wire belt is connected may be formed on one side of the dust collecting portion. At this time, an annular portion may be formed at one end and the other end of the wire belt, and a fixing portion to which the annular portion can be engaged may be formed at the wire connection portion.

In the present invention, the drive pulley may include a wheel portion connected to a rotation axis of the drive motor to transmit power of the drive motor to the wire belt, and a connection portion for preventing the wire belt from departing from the wheel portion. In this case, the wheel portion may be a gear structure having gear teeth formed therein, and the wire belt may be a chain structure engaged with the gear teeth.

The filter housing may further include a filter housing on which the filter is mounted, the drive pulley is disposed on one side of the filter housing, and the power transmission portion includes an interlocking pulley disposed on the other side of the filter housing. At this time, the power transmitting portion is disposed on the movement path of the wire belt, spaced apart from the driving pulley and the interlocking pulley, and at least one tension member for generating tension on the wire belt And may further include a pulley.

In the present invention, the wire belt may be made of an elastic material.

The ceiling type air conditioner according to the present invention includes a dust collecting unit for collecting foreign matter filtered by a filter, a moving unit connected to the dust collecting unit, for moving the dust collecting unit to a position where foreign matter stored in the dust collecting unit is discharged, . Accordingly, since the filter is automatically cleaned by moving the dust collecting unit, the foreign matter filtered by the filter is effectively collected and stored, thereby preventing contamination of the filter.

In addition, since the foreign matter stored in the dust collecting unit can be discharged to the outside after the dust collecting unit is moved to one end of the filter housing, there is no need for the user to directly replace or clean the filter or the dust collecting unit. There is an advantage that the inconvenience caused by the cleaning operation can be solved.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a ceiling-mounted air conditioner according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a ceiling type air conditioner 1 according to the present invention, and FIG. 2 is a perspective view showing a state in which a base panel 300 is separated from the case 200 shown in FIG.

Hereinafter, for convenience of explanation, the longitudinal direction (i.e., the left-right direction) of the case 200 is denoted by the reference character X in Figs. 1 and 2 and the direction perpendicular to the longitudinal direction of the case 200 Direction) perpendicular to the longitudinal direction of the case 200 with the reference symbol Y (that is, the up-and-down direction) will be described as Z. [

1 and 2, a ceiling type air conditioner 1 according to the present invention includes a case 200 fixed to an inner space of a ceiling 100 to suck air and discharge heat-exchanged air . The case 200 may have the shape of a rectangular parallelepiped having a bottom open and a long length.

The case 200 is fixed by a fastening means such as a bolt (not shown) so as to be in close contact with the upper side of the inner space of the ceiling 100. Inside the case 200, various heat exchanging parts 180 for sucking air from the lower room 170 side for heat exchange and discharging are arranged. The ceiling-mounted air conditioner 1 further includes a base panel 300 coupled to a lower portion of the case 200 to cover an opened bottom surface of the case 200.

A front panel 400 for opening and closing the air inlet 305 is disposed on a lower surface of the base panel 300. In operation of the air conditioner, the front panel 400 opens the air inlet 305 formed on the base panel 300 to guide the sucked air into the case 200, and at the same time, The suction port 305 is closed to form an appearance of the lower surface of the ceiling 100. [

The ceiling-mounted air conditioner (1) further includes a side panel (500) disposed on the base panel (300) corresponding to at least one side of the front panel (400). The side panel 500 may be detachably coupled to the base panel 300 by a user. The side panel 500 is disposed at a lower portion of the base panel 300 to form a part of the outer appearance of the air conditioner 1.

3 is an exploded perspective view illustrating components coupled to the base panel 300 shown in FIG. 3, the base panel 300 is provided with an air inlet 305 for communicating the inside and the outside of the case 200 in the X direction. The air inlet 305 is spaced a predetermined distance in the Y direction from the air inlet 305, (310) communicating the inside and the outside of the case (200) in parallel to the air outlet (305). The suction surface of the air suction port 305 and the discharge surface of the air discharge port may be arranged substantially parallel to the horizontal plane.

4 is an exploded perspective view of the cleaning device 600 coupled to the air inlet 305 of the base panel 300 shown in FIG. 5 is an assembled perspective view of the cleaning apparatus 600 shown in FIG. 6 is an exploded perspective view of the dust collecting unit 700 shown in FIG.

The cleaning apparatus 600 of the present invention includes a filter 610, a filter housing 620 on which the filter 610 is mounted, a dust collector 700, and a moving unit 640.

First, a filter 610 for filtering foreign substances in the air flowing through the air inlet 305 is disposed at the air inlet 305 side. The filter 610 is seated on the filter housing 620 disposed on the air intake port 305 side, as shown in Fig. The filter 610 is detachable from the filter housing 620 so that the filter 610 can be replaced by the user. Accordingly, the filter 610 is detachable in a manner that it is fitted or slidingly coupled to the filter housing 620, but is not limited to the above-described coupling method.

The filter 610 and the filter housing 620 are manufactured on the basis of the size of the air inlet 305 and are coupled to the air inlet 305. The coupling method can be a fitting method or a sliding coupling method , But the present invention is not limited to this combination method. The filter 610 functions to collect foreign substances in the air sucked through the air inlet 305, so that the amount of foreign matter collected in the filter 610 increases as the use period of the filter 610 elapses.

4 and 5, the dust collector 700 is coupled to the filter housing 620 and disposed below the filter 610. Referring to FIG. 6, the dust collector 700 includes a brush 720 and a main body 710.

The body 710 is in contact with the brush 720 to form a predetermined space for collecting and storing the foreign substances separated from the filter 610. Specifically, the main body 710 is composed of a main body base 711 constituting the bottom of the main body and a main cover 710 covering the main body base 711.

At the bottom of the main body base 711, at least one support portion (722 of FIG. 8 to be described later) is protruded, and the brush frame 721 is coupled to the support portion.

The brush 720 is fixed to the brush frame 721 provided inside the main body 710. The brush 720 is disposed below the filter 610 and contacts the foreign matter filtered by the filter 610 to drop the foreign matter in the direction of its own weight.

Foreign matter filtered by the filter 610 due to contact between the brush 720 and the filter 610 falls in the self weight direction and is stored inside the main body base 711.

Specifically, the brush 720 is disposed below the filter 610, and the mobile unit 640 and the dust collecting unit 700 are connected to each other. The moving unit 640 moves the dust collecting unit 700 linearly to move the dust collecting unit 700 to a position where the filter 610 is cleaned and the foreign substances stored in the dust collecting unit 700 are discharged have. That is, the dust collecting unit 700 can continuously perform the linear reciprocating motion along the filter housing 620 by the moving unit 640.

First, when the dust collecting part 700 moves along one direction (X direction in FIG. 1) of the filter housing 620, the brush 720 and the filter 610 come in contact with each other. The foreign matter separated from the filter 610 by the contact of the brush 720 and the filter 610 falls in the self weight direction and is collected in the main body 710.

6, the dust collector 700 further includes a plurality of rollers 730 disposed between the filter housing 620 and the body 710. When the dust collecting unit 700 moves by the moving unit 640, the rollers 730 perform a rolling operation along one side of the filter housing, and the dust collecting unit 700 moves based on the rolling operation .

4, the filter housing 620 includes at least one side of the main body 710 to support both sides of the main body 710 to guide the movement of the dust collecting part 700 and prevent the downward detachment of the main body 710, (630).

7 is a side view of the cleaning apparatus 600 shown in FIG. 4 and 7, the flow preventing portion 630 extends downward from both ends of the filter housing 620 in parallel with the longitudinal direction of the filter housing 620. The flow preventing portion 630 includes a support surface 631 for supporting both ends of the dust collecting portion 700 And a detachment preventing surface 632 extending in parallel to the filter housing 620 at the end of the supporting surface 631 to prevent detachment of the dust collecting part 700 from the lower part.

7, the filter housing 620 may be provided on both sides of the filter housing 620 so that both ends of the dust collecting unit 700 are supported by the filter housing 620, can do.

The plurality of rollers 730 are disposed in the flow preventing portion 630 and rolled. Specifically, the plurality of rollers 730 are disposed at both ends of the dust collecting portion 700, and each stage is composed of horizontal side rollers 730a and vertical side rollers 730b. The horizontal side roller 730a supports the dust collecting part 700 so as not to be detached in the lateral direction and the vertical side roller 730b supports the dust collecting part 700 such that the dust collecting part 700 is not deviated in the vertical direction.

Specifically, the horizontal side rollers 730a are arranged so as to be supported by the support surfaces 631 and rolled, and the vertical side rollers 730b are arranged and rolled so as to be held together with the anti-detacking side surfaces 632. [ The dust collecting part 700 is supported in the horizontal direction and the vertical direction by the plurality of rollers 730 and the dust collecting part 700 is moved along one direction (X direction in FIG. 1) of the filter housing 620 When moving, horizontal or vertical twisting phenomenon or shaking phenomenon can be prevented.

8 is a perspective view of the drive pulley of the mobile unit shown in Fig. 9 is a perspective view showing the fastening structure of the dust collecting part and the wire belt shown in FIG.

The mobile unit 640 moves the dust collecting unit 700 along one direction (the X direction in FIG. 1) of the filter housing 620. Specifically, the moving unit 640 includes a driving motor 641 disposed on at least one side of the filter housing 620, and a driving motor 642 coupled to the dust collecting unit 700 to transmit the power of the driving motor to the dust collecting unit 700 And a power transmission portion. Accordingly, the dust collecting portion 700 is coupled to the filter housing 620 and is movable along one direction of the filter housing 620 by the power transmitting portion.

The power transmission portion includes a driving pulley 642, an interlocking pulley 644, a tension pulley 643, and a wire belt 645.

The drive pulley 642 is connected to the rotation shaft of the drive motor 641. When the rotation shaft of the drive motor 641 rotates by a power source applied from a power supply unit (not shown), the drive pulley 642 rotates interlocked. The interlocking pulley 644 is disposed on the other side of the filter housing 620 where the drive pulley 642 is disposed. When the power is transmitted to the wire belt 645 due to the rotation of the drive pulley 642, the wire belt 645 rotates and the interlocking pulley 644 rotates in conjunction with the rotation of the wire belt 645.

The drive pulley 642 includes a pulley base portion 642a, a wheel portion 642b, a connecting portion 642c, and a fastening bolt 642d. Referring to FIG. 8, the drive pulley 642 has a wheel portion 642b inserted into a pulley base portion 642a formed on one side of the filter housing 620. The wheel 642b receives the power of the driving motor 641 directly. The wheel portion 642b is connected to the rotation shaft of the drive motor 641 to transmit the power of the drive motor 641 to the wire belt 645. [ A connecting portion 642c is fitted to the wheel portion 642b. Referring to Fig. 4, a wire belt 645 is wound on the outer peripheral surface of the wheel portion 642b.

8, the pulley base portion 642a, the wheel portion 642b, and the connecting portion 642c can be integrally fastened by the fastening bolt 642d. The connection portion 642c can be used to couple the wheel portion 642b to the rotation shaft of the drive motor 641 and prevent the wire belt 645 wound on the outer circumferential surface of the wheel portion 642b from being released during rotation.

Although not shown in Fig. 8, the wheel portion 642b may be formed of a gear structure having gear teeth formed therein, and the wire belt 645 may be formed of a chain structure of engaging with the gear teeth. In this case, the moving distance of the wire belt 645 per predetermined time can be easily confirmed by calculating the number of gear teeth formed on the wheel 642b. In addition, since the gear teeth of the wheel portion 642b are engaged with the chain structure of the wire belt 645, the tightening force or tightening force between the wheel portion 642b and the wire belt 645 is strengthened and the wire wound around the outer circumferential surface of the wheel portion 642b There is an advantage that when the belt 645 rotates, the separation of the wire belt 645 can be easily prevented.

Although the configuration of the drive pulley 642 is shown in Fig. 8, the configuration of the interlocking pulley 644 may be the same as that of the drive pulley 642. [ That is, although not shown, the interlocking pulley 644 is constituted by a pulley base portion, a connecting portion, and a wheel portion, and can be integrally fastened by a fastening bolt.

The wire belt 645 is wound on the driving pulley 642 and connected to the dust collecting part 700 to transmit the power of the driving motor 641 to the dust collecting part 700. The connection between the dust collector 700 and the wire belt 645 is as follows.

4 and 9, a wire connecting portion 740 to which a wire belt 645 is connected is formed on one side of the dust collecting portion 700, and a fixing portion 741 is formed on the wire connecting portion 740. An annular portion 645a is formed at one end and the other end of the wire belt 645 and the annular portion 645a is engaged with the fixing portion 741 of the wire connecting portion 740. Here, the fixing portion 741 is preferably hook-shaped to facilitate attachment and detachment of the wire belt 645. [ The wire belt 645 may be made of an elastic material to increase the adhesion between the driving pulley 642 and the tension pulley 643 or between the interlocking pulley 644 and the tension pulley 643. [

The tension pulley 643 is spaced apart from the drive pulley 642 and the interlocking pulley 644 on the movement path of the wire belt 645 so that the wire belt 645 is wound to one side, .

On the other hand, the plurality of rollers 730 are disposed in the flow preventing portion 630 and rolled by the power transmitted from the power transmitting portion. That is, when the power of the driving motor 641 is transmitted to the wire belt 645, the wire belt 645 rotates, and the roller 730 of the dust collector 700 is pulled by the winding operation of the wire belt 645, Respectively, roll along the support surface 631 and the anti-detachment surface 632 of the flow-preventive portion 630, respectively.

FIG. 10 is a plan view of the dust collecting unit 700 shown in FIG. 4. FIG. 11 is an exploded perspective view of the dust collecting unit 700 for explaining the inside of the main body 710 of the dust collecting unit 700 shown in FIG. to be.

As described above, a wire connecting part 740 to which the wire belt 641 is connected is formed on one side of the dust collecting part 700. The wire connecting portion 740 is formed with a fixing portion 741 to which both ends of the wire belt 641 are engaged and the fixing portion 741 is formed into a hook shape. An annular portion (645a in FIG. 4) is formed at one end and the other end of the wire belt 641, and the annular portion is engaged with the fixing portion 741 of the wire connecting portion 740.

10 and 11, the inside of the main body 710 includes a seating portion 713 where foreign matter falls and seats in the self-weight direction, and a foreign body 720 which guides the foreign matter seated in the seating portion 713 to the outside of the main body 710 And is guided by the guiding portion 714. A partition wall 715 for partitioning the seating part 713 and the guide part 714 is formed in the main body 710 and a plurality of suction holes 714a are formed on the partition wall 715 to be spaced apart from each other. A discharge port 714b is formed at one side of the guide portion 714 so as to discharge the foreign substances seated on the seating portion 713 to the outside of the main body 710.

Referring to FIG. 11, the main body base 711 and the main cover 712 are coupled to each other through fitting or the like. The main body cover 712 does not cover the front surface of the main body base 711 but covers only the guide portion 714. [ This is because the foreign matter falls from the filter 610 by the brush 720 and is seated and the seat 713 must be opened to the outside in order to install the brush 720 and the brush frame 721.

The cleaning device 600 of the present invention further includes a suction unit 800 for sucking foreign matter collected in the dust collecting part 700.

As shown in FIG. 2, the suction unit 800 is disposed outside the case 200. When the dust collecting unit 700 moves to one end of the filter housing 620 by the moving unit 640, the dust collecting unit 700 and the suction unit 800 communicate with each other.

The suction unit 800 includes a suction force generation unit (not shown) for generating a suction force for sucking foreign substances collected in the dust collection unit 700 and a suction force generation unit And a foreign matter collecting unit (not shown) through which the foreign matter is sucked.

4 and 10, when the dust collecting unit 700 is moved to one end of the filter housing 620 by the moving unit 640, the discharge port 714b formed in the guide portion 714 of the main body 710, And the housing discharge port 621 formed in the filter housing 620 communicate with each other. It is possible to connect the dust collecting unit 700 and the suction unit 800 while the housing discharge port 621 is connected to the suction port (not shown) formed in the foreign matter collecting unit. The housing discharge port (not shown) and the suction port (not shown) formed in the foreign matter collecting unit may be connected by direct coupling, but may be connected by using a hose (not shown) or the like.

When the foreign matter collecting unit and the guide portion 714 are in communication with each other, the foreign substance is sucked into the foreign matter collecting unit via the seating portion 713 and the guide portion 714 by the suction force generated by the suction force generating unit. The dust sucked into the foreign matter collecting unit is centrifuged and collected and stored in the foreign matter collecting unit 900.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1 is a perspective view of a ceiling-mounted air conditioner according to the present invention.

FIG. 2 is a perspective view illustrating a state in which the base panel is separated from the case shown in FIG. 1. FIG.

3 is an exploded perspective view illustrating components coupled to the base panel shown in FIG.

4 is an exploded perspective view of a cleaning device coupled to an air inlet of the base panel shown in FIG.

5 is an assembled perspective view of the cleaning apparatus shown in FIG.

6 is an exploded perspective view of the dust collecting part shown in Fig.

7 is a side view of the cleaning apparatus shown in Fig.

8 is a perspective view of the drive pulley of the mobile unit shown in Fig.

9 is a perspective view showing the fastening structure of the dust collecting part and the wire belt shown in FIG.

10 is a plan view of the dust collecting portion shown in Fig.

11 is an exploded perspective view of a dust collecting portion for explaining the inside of the main body of the dust collecting portion shown in Fig.

BRIEF DESCRIPTION OF THE DRAWINGS Fig.

1: ceiling type air conditioner 100: ceiling

170: room 200: case

250: protruding end 300: base panel

305: air inlet port 310: air outlet port

400: front panel 500: side panel

600: Cleaning device 700: Dust collector

800: suction unit 900: foreign matter collecting unit

Claims (16)

A case disposed in the ceiling and having a predetermined space formed therein; A base panel coupled to the case and having an air inlet formed at one side thereof; A filter disposed on the air inlet side; A dust collecting part for collecting and storing the foreign matter filtered by the filter; A moving unit connected to the dust collecting unit to move the dust collecting unit to a position where foreign matter stored in the dust collecting unit is discharged; And A filter housing on which the filter is seated, Wherein the dust collecting unit includes a brush in contact with the foreign matter filtered by the filter and a body having a predetermined space formed therein for collecting and storing the foreign substances separated from the filter by being in contact with the brush, Wherein the moving unit includes a driving motor disposed at least at one side of the filter housing and a power transmitting unit connected to the dust collecting unit and transmitting the power of the driving motor to the dust collecting unit, At least one side of the filter housing supports both sides of the main body to guide the movement of the dust collecting part and extends downward from both ends of the filter housing in parallel with the longitudinal direction of the filter housing to prevent detachment of the main body, And a flow preventive portion including a support surface for supporting both ends in the longitudinal direction and an anti-detachment surface for preventing the dust collecting portion from being detached downward from the filter housing at the end of the support surface. delete The method according to claim 1, Wherein the dust collecting unit is coupled to the filter housing and is reciprocally movable along the filter housing by the power transmitted from the power transmitting unit. The method of claim 3, The dust collector further comprises a plurality of rollers disposed between the filter housing and the body, Wherein the plurality of rollers are disposed in the flow prevention portion and are rolled by the power transmitted from the power transmission portion. delete delete The method of claim 4, Wherein at least one roller of the plurality of rollers is disposed so as to be supported by the support surface and rolled, and at least one roller is disposed and rolled so as to be supported by the detachment prevention surface. The method according to claim 1, The power transmission portion A drive pulley connected to a rotation axis of the drive motor, And a wire belt wound around the driving pulley and connected to the dust collecting unit to transmit the power of the driving motor to the dust collecting unit. The method of claim 8, And a wire connecting portion to which the wire belt is connected is formed on one side of the dust collecting portion. The method of claim 9, Wherein an annular portion is formed at one end and the other end of the wire belt, and the wire connecting portion is formed with a fixing portion for engaging and disengaging the annular portion. The method of claim 10, Wherein the fixing portion has a hook shape. The method of claim 8, The driving pulley being connected to a rotation axis of the driving motor and transmitting power of the driving motor to the wire belt; And a connection portion for preventing the wire belt from departing from the wheel portion. The method of claim 12, The wheel portion is a gear structure having gear teeth formed therein, Wherein the wire belt is engaged with the gear teeth. The method of claim 8, Further comprising a filter housing on which the filter is seated, Wherein the drive pulley is disposed on one side of the filter housing, Wherein the power transmission portion further includes an interlocking pulley disposed on the other side of the filter housing. 15. The method of claim 14, The power transmission unit may include at least one tension pulley that is spaced apart from the drive pulley and the interlocking pulley on the movement path of the wire belt and that generates tension on the wire belt by an operation of winding the wire belt to one side Further comprising a ceiling-mounted air conditioner. The method of claim 8, Wherein the wire belt is made of an elastic material.

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