KR20070077408A - Stand type air conditioner with anti-dust barrier - Google Patents

Abstract

The present invention relates to a stand-type air conditioner having a dust-injection prevention barrier formed on a lower side of a front panel forming a front appearance of a stand-type air conditioner to enable opening and closing of a front inlet for inhaling external air.

Stand type air conditioner according to an embodiment of the present invention is the front panel 220 to form the front appearance of the stand-type air conditioner, and the front suction hole 280 is formed on the lower side of the lower end of the front panel 220 to suck the outside air And, it is provided on the lower rear of the front panel 220 is provided with a blocking means for controlling the opening and closing of the front suction port.

In the case of using the anti-dust barrier film according to the present invention, it is possible to prevent dust from flowing in through the front inlet or accumulating dust on the front inlet while the air conditioner is not used.

Description

Stand type air conditioner with a panel for blocking off dust

1 is a perspective view showing the appearance of an air conditioner according to the prior art.

2 is a perspective view showing an open state of the front panel of the air conditioner according to the prior art.

Figure 3 is a perspective view showing the appearance of an air conditioner employing a preferred embodiment of the present invention.

Figure 4 is an exploded perspective view showing the internal configuration of an air conditioner employing a preferred embodiment of the present invention.

Figure 5 is a perspective view of the back of the front panel of the air conditioner is installed dust prevention barrier according to the invention.

6 is a left side view of the front panel of the air conditioner shown in FIG.

7 is a right side view of the front panel of the air conditioner shown in FIG.

Explanation of symbols on the main parts of the drawings

100. Main body 200. Front frame

220. Front panel 220 '. tempered glass

222. Control panel 222 '. Display window

222 ". Control Buttons 222 '' '.

230. Motors 231, 231 '. Pinion Gear

232, 232 '. Rack gears 233, 233'. Gear

232a, 232'a, 232b, 232'b. Fastener 234. Connecting shaft

235. Dust barrier 224 '. Control panel mounting groove

240. Side discharge outlet 242. Left discharge outlet

244. Right side discharge outlet 260. Top discharge outlet

280. Front intake 300. Rear frame

310. Top panel 320. Indoor heat exchanger

330. Drain section 340. Blower fan

350. Fan housing 360. Dust collecting filter

400. Discharge vane 410. Left discharge vane

500. Left side 510. Left frame

520. Left suction vane 530. Left prefilter

550. Right side part 560. Right frame

570. Right suction vane 580. Right prefilter

600. Base frame 620. Bottom filter unit

622. Lower surface prefilter 624. Hepa filter

626. Nano Filter

The present invention relates to an air conditioner, and more particularly, a stand having a dust-injection blocking film that is formed under a front panel that forms a front appearance of a stand type air conditioner and enables opening and closing of a front inlet for inhaling outside air. It relates to a type air conditioner.

Air conditioners are in increasing demand to create a more comfortable and comfortable living environment. Such an air conditioner is a device for maintaining indoor air in an optimal state according to a purpose, and in general, an air conditioner is installed in a space or a wall of a room such as a vehicle, an office, or a home to cool or heat a room. / Heating equipment, which constitutes a series of refrigeration cycles consisting of compressors, condensers, expansion valves and evaporators.

In particular, an air conditioner is equipped with a condenser and a compressor and is mainly installed outdoors (sometimes referred to as 'outdoor' or 'heat sink'), and an indoor unit ('indoor' or installed with an evaporator and installed mainly in the room). Also referred to as 'heat absorbing side' can be divided into a separate type of air conditioner is installed separately, and an integrated air conditioner is installed integrally with the outdoor unit and the indoor unit.

In addition to cooling and heating, an air conditioner has a variety of functions, such as an air purifying function that sucks and filters contaminated air in a room and re-supplies clean air into the room, and a dehumidification function that reinjects humid air into dry and dry air. Additional features are being added.

Hereinafter, an indoor unit of a stand type air conditioner, which is one of the split type air conditioners, will be described with reference to the drawings.

1 is a perspective view showing the exterior of a stand-type air conditioner indoor unit according to the prior art, and FIG. 2 is a perspective view showing an open state of the front panel of the stand-type air conditioner indoor unit according to the prior art. .

Looking at the indoor unit of the stand-type air conditioner with reference to the bar shown in these figures, the indoor unit is provided with a main body 10 forming a plurality of parts therein while forming an internal space, and forms an exterior.

The internal space of the main body 10 includes a plurality of parts for inhaling and harmonizing air in the room and then discharging the air into the room.

The front panel 20 is mounted on the front surface of the main body 10 to form a front appearance. In general, the front of the front panel 20 is attached to the tempered glass for aesthetics, etc., a VMC steel sheet coated with a film layer is a typical example.

The upper half of the front panel 20 is provided with an operation unit 30 so that the user can operate the air conditioner. The operation unit 30 is provided with a display unit 32 for displaying the operating state of the air conditioner and the surrounding environment, and a plurality of operation buttons 34 so that the user can directly operate the air conditioner.

Discharge parts (not shown) which are formed to be inclined to the rear at a predetermined angle while having a predetermined width are provided on the left and right sides of the upper half of the front panel 20. The discharge part (not shown) is equipped with vanes 22 for selectively shielding the discharge part. The vanes 22 rotate to selectively shield the discharge part (not shown).

That is, when the user applies an external power to operate the air conditioner to operate the air conditioner by operating the operation button 34, the vane 22 rotates to open the discharge part (not shown). Let's go. When the discharge part (not shown) is opened, the air harmonized inside the main body 10 is discharged to the outside of the main body 10 through the discharge part (not shown) to harmonize the air in the room to a state desired by the user. do.

The side suction part 24 is provided below the vane 22. The side suction part 24 is provided to suck outside air of the main body 10, that is, indoor side air into the main body 10. The lower side of the lower side of the front panel 20 is provided with a front suction opening 40, the front suction opening 40 is provided to suck the front air in the interior of the body 10.

Looking at the internal configuration of the main body 10 with reference to Figure 2, the front frame 50 is mounted on the rear upper half of the front panel 20. In the center portion of the front frame 50, the operation unit seating groove 52 in which the operation unit 30 is seated is molded by being recessed to the rear.

In addition, the rear of the front frame 50 is equipped with an indoor heat exchanger (not shown) to exchange heat with the indoor air sucked through the side suction unit 24 and the front suction port 40 of the user desired air Harmonize with state.

The inner side of the side suction part 24 is equipped with a side filter 26 for filtering the foreign matter of the air sucked into the body 10 through the side suction part 24, the front suction port 40 The upper side of the lower filter 42 is mounted to filter the foreign matter of the air sucked through the front suction opening (40).

The front filter 60 is provided above the bottom filter 42 to filter the internal air of the main body 10 once more, and a blower fan (not shown) is provided at the rear of the front filter 60. The internal air flow of the body 10 is forced.

However, in the case of the indoor unit of the stand type air conditioner according to the prior art as described above, the front intake hole 40 is not used while the air conditioner is not used because the front intake port 40 is always open regardless of whether the indoor unit is operated. There is a problem that foreign matter such as dust accumulates in the front end of the).

In addition, when foreign matters accumulate in the front suction opening 40 of the indoor unit as described above, the probability of causing indoor air pollution is increased, which has a problem that may damage the user's health.

The present invention has been proposed to solve the above-mentioned problems, and when the air conditioner is not used, it is to provide an air conditioner having a dust input prevention barrier that can block the front inlet of the air conditioner.

Stand type air conditioner according to an embodiment of the present invention is the front panel 220 to form the front appearance of the stand-type air conditioner, and the front suction hole 280 is formed on the lower side of the lower end of the front panel 20 to suck the outside air And, it is provided on the lower rear of the front panel 220 is provided with a blocking means for controlling the opening and closing of the front suction port.

The blocking means according to an embodiment of the present invention is a dust input blocking film 235 made of a rectangular panel disposed on the lower rear of the front panel 220, and the rear left and right sides of the dust input blocking film 235 First and second rack gears 232 and 232 'fixedly installed at the end in the longitudinal direction, respectively, and positioned above the rack gears 232 and 232', respectively, the rack gears 232 and 232 '. And first and second pinion gears 231 and 231 ′ disposed to mesh with the teeth of the first and second connecting pins 231 and 231 ′, respectively, and a connecting shaft 234 for coupling the rotation axes of the first and second pinion gears 231 and 231 ′ to each other. And a motor 230 for generating a driving force to enable the rotation of the first and second pinion gears 231 and 231 '.

The motor according to the present invention is spaced apart to the left from the right end edge of the anti-dust blocking film is fixed to the left end of the lower rear of the front panel 220.

Fastening holes are formed in the upper end and the lower end of each of the first and second rack gears according to the present invention, and the first and second rack gears are fastened to the dust preventing barrier by fastening means tightened through the fastening holes. It is characterized in that it is fixed.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 3 is a perspective view showing the outer appearance of the indoor unit of the stand-type air conditioner employing a preferred embodiment according to the present invention. Looking at the appearance of the indoor unit of the air conditioner with reference to the drawings, the indoor unit is molded into a long vertical box shape while securing an internal space, and a plurality of parts for air conditioning are mounted therein.

The main body 100 is formed into a front frame 200 supporting the first half of the main body 100 and a rear frame 300 forming a rear half of the main body 100 to form a rear exterior. The front panel 220 is mounted to the front of the front frame 200 to form a rectangular plate shape to form the front appearance of the main body 100. Tempered glass 220 'may be attached to the front of the front panel 220 for aesthetic appearance.

An operation unit 222 is provided at the center of the upper half of the front panel 220 to allow the user to operate the air conditioner. The operation unit 222 is provided with a display window 222 ′ displaying the operating state of the air conditioner and the surrounding environment, and a plurality of operation buttons 222 ″ so that the user directly operates the air conditioner.

Discharge vanes 400 for guiding the air discharge in the interior of the main body 100 are mounted on the left and right sides of the upper half of the front panel 220. The discharge vane 400 is rotated when the user operates the air conditioner by operating the operation unit 222 to discharge the harmonized air inside the main body 100 to the room. As such, the discharge vane 400 guides the discharge direction of the harmonized air.

The discharge vane 400 is formed in the front frame 200, the discharge vane 400 is mounted to the side discharge port 240 which is a passage for discharging the harmonized air into the interior of the main body 100 do. The side discharge port 240 is formed of a left discharge port 242 formed on the left side of the front frame 200 and a right discharge port 244 formed on the right side.

The upper surface of the front frame 200 is provided with a top discharge port 260 for discharging the air harmonized in the interior of the main body upwards. Therefore, the air harmonized inside the main body 100 is discharged by the side discharge port 240 and the upper surface discharge port 260.

The discharge vane 400 selectively shields the side discharge port 240, and the discharge vane 400 discharges the harmonized air into a room by operating a plurality of components mounted inside the main body 100. When you want to rotate to open the side discharge port 240.

On the contrary, when the air conditioner is not used, the discharge vane 400 rotates to shield the side discharge port 240 so as to prevent dust or foreign matter from being sucked into the main body 100.

On the other hand, the lower side of the lower side of the front panel 220 is formed a front suction port 280 that is a passage for sucking the indoor air in front of the main body 100 into the main body 100.

The indoor air sucked through the front suction hole 280 is filtered while passing through a plurality of filters mounted inside the main body 100 to remove foreign substances or dust contained in the air and sucked into the main body 100. do.

Figure 4 is an exploded perspective view showing the internal configuration of the indoor unit of the air conditioner employing a preferred embodiment of the present invention. As shown in the figure, the rear cover 224 is mounted on the rear of the front panel 220. The rear cover 224 is mounted to protect the rear of the front panel 220, the central portion of the rear cover 224 is the overall length related to the display window 222 'and the operation button 222' ' The operation part mounting groove 224 'on which the electric component case 222' '' on which the component is mounted is recessed and molded backward.

The front frame 200 is mounted to the rear side of the rear cover 224. The front frame 200 is shaped into a rectangular box shape with a rear surface open, and both sides are formed to be slightly inclined outward toward the rear. Side ejection openings 240 are formed on both sides of the front frame 200 so that the air harmonized inside the main body 100 is discharged into the room.

The upper surface discharge port 260 is formed on the upper surface of the front frame 200, and the upper door 262 is rotatably mounted on the upper discharge port 260 to selectively shield the upper discharge port 260. Although not shown, the top door 262 is mounted to be rotatable by receiving rotational power by a door motor.

The lower side of the front frame 200 is formed with a perforated side suction opening (not shown) through which the indoor air is sucked. That is, the left surface portion 500 is formed under the left side of the front frame 200, and the right surface portion 550 is formed under the right side of the front frame 200.

The left side part 500 is equipped with a left frame 510 supporting the left side part 500, and the left side frame 510 has a central portion formed therein to form a left suction hole (not shown). The left suction opening (not shown) is a passage through which the left side air of the main body 100 is sucked into the inside of the main body 100, and the left suction opening (not shown) is provided with a left suction vane 520. Optionally shield the inlet (not shown).

In addition, the left pre-filter 530 is mounted on the inner side of the left suction opening (not shown) to filter the air in the room sucked into the main body 100 through the left suction opening (not shown). When the filter is filtered by the left pre-filter 530, the dust and foreign substances included in the air are filtered, and only the clean air is sucked into the main body 100. The lower end of the left suction vane 520 is mounted with a left motor (not shown) for generating the rotational power of the left suction vane 520 to transmit the rotational power to the left suction vane 520.

The right side frame 560 is mounted on the right side portion 550 provided below the right side of the front frame 200, and the right side frame 560 is perforated in the center thereof to form a right suction hole (not shown). The right suction port (not shown) is a passage through which the air in the right side of the main body 100 is sucked into the main body 100, and the right suction port (not shown) is provided with a right suction vane 570 to the right. Optionally shield the inlet (not shown).

In addition, a right pre-filter 580 is mounted on an inner surface of the right suction port (not shown) to filter the indoor air sucked into the main body 100 through the right suction port (not shown). When the air is filtered by the right pre-filter 580, the dust and foreign substances included in the air are filtered to suck only clean air into the main body 100. The lower end of the right suction vane 570 is equipped with a right motor (not shown) for generating the rotational power of the right suction vane 570 to transfer the rotational power to the right suction vane 570.

On the other hand, the left discharge vane 410 is mounted to the left discharge port 242 formed in the front frame 200. The left discharge vane 410 is rotatably mounted to guide discharge of the harmonized air discharged through the left discharge port 242. According to the rotation angle of the left discharge vane 410, the user can select the discharge direction of the harmonized air discharged to the outside of the main body 100.

The rear frame 300 is mounted on the rear side of the front frame 200. The rear frame 300 is formed into a rectangular box shape in which the front, top and bottom surfaces are opened, and the left and right surfaces are inclined outward toward the front. The inclination angle of the left side and the right side forms an angle corresponding to the inclination angle of the left side and the right side of the front frame 200.

An upper surface panel 310 which shields the opened upper surface is mounted on the opened upper surface of the rear frame 300, and the upper panel 310 is formed into a rectangular box shape in which the front and lower surfaces thereof are opened to form the rear frame 300. It will shield the top surface. The left side and the right side of the top panel 310 may be formed to have an angle corresponding to the inclination angle of the left side and the right side of the rear frame 300.

An indoor heat exchanger 320 is mounted on the upper upper half of the rear frame 300. The indoor heat exchanger 320 is formed by bending a plurality of cylindrical pipes having a predetermined diameter a plurality of times, and generally shaped into a substantially rectangular plate shape. A refrigerant, which is a working fluid, flows inside the indoor heat exchanger 320, and the indoor heat exchanger 320 is mounted to be inclined rearward as it goes upward.

That is, the upper end of the indoor heat exchanger 320 is mounted on the inner rear of the rear frame 300, inclined forward toward the lower side, that is, mounted inclined in an approximately "/" shape when viewed from the left side. do. This is to improve heat exchange efficiency by having more contact area when the air inside the main body 100 flowing downward from the upper side is heat exchanged while passing between the indoor heat exchanger 320.

A drain portion 330 is provided at a lower end of the indoor heat exchanger 320, and the drain portion 330 is a coolant that is a working fluid flowing inside the indoor heat exchanger 320 and the downward flow upward. The internal air of the main body 100 is provided to collect condensate generated as heat exchanges. The drain portion 330 is formed in a rectangular box shape having an upper surface open to collect condensate, and the condensate collected in the drain portion 330 is discharged to the outside of the main body 100.

The blower is mounted below the drain 330. The blower is a fan fan (not shown) for providing a rotational power of the blowing fan 340 and the blowing fan 340 to force the flow of the air inside the main body 100 by the rotational movement, the blowing fan 340 It is formed to surround the, and comprises a fan housing 350 for guiding the air flowing upward due to the rotational movement of the blowing fan 340.

The blower fan 340 is a multi-wing fan that sucks the air in front of the blower fan 340 and rotates outwards, and a suction force is generated inside the main body 100 due to the rotational movement of the blower fan 340. Done. Through the left suction port (not shown), the right suction port (not shown) and the front suction port 280 by the suction force generated by the rotational movement of the blowing fan 340 into the interior of the main body 100 Inhale.

The outer side of the blowing fan 340 is provided with a fan housing 350. The fan housing 350 simultaneously serves to guide the air sucked due to the rotational movement of the blowing fan 340 upward while protecting the blowing fan 340. The fan housing 350 is shaped into a cochlea-shaped lead shape with an upper surface open, and the front center portion is opened to be formed to suck air, and flows upwardly the indoor air introduced from the front through the opened upper surface. .

The dust collecting filter 360 is mounted on the front surface of the fan housing 350. The dust collecting filter 360 is provided to filter dust and foreign matter sucked into the indoor air sucked through the side suction holes (not shown) and the front suction holes 280, and the side filters 530 and 580. This is to filter the air filtered by the lower surface filter unit 620 once more so that clean air is introduced into the main body 100 and discharged to the room.

The base frame 600 is mounted at the lower end of the rear frame 300. The base frame 600 is supported while forming the lower end of the main body 100. The base frame 600 is shaped into a substantially hexagonal box shape with an upper surface open, and is molded to secure a predetermined internal space.

A portion of the front surface of the base frame 600 is opened so that the front suction opening 280 is formed, and the front air of the main body 100 is sucked into the main body 100. The lower surface filter unit 620 is mounted in the inner space of the base frame 600. The lower filter unit 620 is equipped with a plurality of filters so that the air in the room sucked through the front suction port 280 is filtered a plurality of times.

A lower surface prefilter 622 is mounted at a lower end of the lower surface filter part 620 to be included in the air when the front air of the main body 100 is sucked into the inside of the main body 100 through the front suction port 280. Hepa filter 624 to filter the relatively large dust and foreign matter is sucked, and to filter the relatively fine dust and foreign matter that is not filtered by the lower surface prefilter 622 on the upper side of the lower surface prefilter 622. Is fitted.

The nano filter 626 is installed on the upper side of the hepa filter 624 to filter fine bacteria and odor particles contained in the indoor air that is sucked into the body 100 while passing through the hepa filter 624.

Hereinafter, with reference to Figures 5 to 7 will be described with respect to the anti-dust blocking film proposed in the present invention.

5 is a rear perspective view of the front panel 220 in which the dust preventing prevention film 235 is installed, FIG. 6 is a left side view of the front panel 220 shown in FIG. 5, and FIG. A right side view of the front panel 220 shown in FIG. 5 is shown.

As shown in the figure, on the upper rear surface of the front panel 220, an electrical equipment case 222 '' 'for mounting the electrical components related to the operation unit 222 is attached by a fastening member such as a screw.

The lower portion of the rear surface of the front panel 220 is provided with a blocking means for shielding the front inlet 280.

The blocking means includes a motor 230, a pinion gear 231, and a rack gear 232, which are driving means for allowing the up and down movement of the dust input prevention barrier 235 and the dust input prevention barrier 235. ) And so on.

The dust preventing prevention film 235 is formed of a rectangular panel. In relation to the size, the transverse length of the anti-dust barrier 235 is designed to correspond to the transverse length of the front inlet 280, and the longitudinal length is fixedly attached to the anti-dust barrier 235. Although a suitable length may be selected in consideration of the lengths of the rack gears 232 and 232 ', it may be preferable to design the cable to be longer than the length of the rack gears 232 and 232'.

On the left and right ends of the dust input prevention barrier 235, the rack gears 232 and 232 'are provided in the longitudinal direction, respectively.

The rack gears 232 and 232 'have an elongated rod shape, and so-called gears 233 and 233' having a gear shape are formed on the upper surface thereof.

Fastening holes 232a and 232b are formed at the upper end and the lower end of the rack gear 232, and the rack gear 232 is dust-injected by screws S fastened through the fastening holes 232a and 232b. It is fixed on the left end of the anti-blocking film 235.

Similarly, fastening holes 232'a and 232'b are formed at the upper end and the lower end of the rack gear 232 ', and the screws S are tightened through the fastening holes 232'a and 232'b. As a result, the rack gear 232 'is fixed on the right end of the dust input prevention barrier 235.

The pinion gear 231 meshes with the gear 233 of the rack gear 232 above the rack gear 232, and the rack gear 232 ′ is positioned above the rack gear 232 ′. The pinion gear 231 'meshes with the gear 233'.

On the other hand, the motor 230 is fixed to the left end of the lower rear side of the front panel 220 by a fastening member such as a screw in a state spaced to the left from the right end edge of the dust injection prevention blocking film 235. Although not shown, the motor 230 and the controller (not shown) of the air conditioner are interconnected by wires, etc., and the operation of the motor 230 is controlled by the controller (not shown).

The rotating shaft (not shown) of the motor 230 is axially coupled with the rotating shaft (not shown) of the pinion gear 231. Therefore, when the rotation shaft of the motor 230 is rotated by the driving of the motor 230, the pinion gear 231 also makes a rotational movement.

The rod-shaped connecting shaft 234 extending in the horizontal direction interconnects the rotation shaft of the pinion gear 231 and the rotation shaft of the pinion gear 231 'so that the driving force of the motor 230 is equally applied to the pinion gear 231'. To be delivered.

Hereinafter, the vertical movement of the dust-injection blocking film 235 proposed by the present invention will be described.

First, before the power supply for the operation of the air conditioner is applied, the front suction opening 280 is shielded by the dust input prevention blocking film 235.

In this state, when a power source for the operation of the air conditioner is applied, the control unit (not shown) supplies power to the motor 230, the motor 230 is supplied with power generates a rotational driving force directed downward.

When the rotating shaft (not shown) of the motor 230 is rotated by the downward rotation driving force of the motor 230, the pinion gear 231 and the pinion gear 231 is coupled to the rotating shaft (not shown) of the motor 230. And the pinion gear 231 'coupled by the connecting shaft 234 are rotated downward.

When the pinion gears 231 and 231 'rotate downward, the gears 233 and 233' meshed with the pinion gears 231 and 231 'receive upward force.

When the gears 233 and 233 'receive upward force, it means that the rack gears 232 and 232' in which the gears 233 and 233 'are molded also receive the same force upward.

Since the rack gears 232 and 232 'are fixed to the dust input blocking film 235, when the rack gears 232 and 232' are moved upward, the dust input blocking film 235 is moved. It also moves upwards.

When the dust input prevention blocking film 235 moves upward, and the front suction opening 280 is completely opened, the controller (not shown) cuts off the power supplied to the motor 230.

When the rotational driving force of the motor 230 is cut off, the pinion gears 231 and 231 'stop rotation and remain engaged with the teeth 233 and 233' of the rack gears 232 and 232 '. Therefore, the dust input prevention blocking film 235 also remains stopped at that position. As a result, the front inlet 280 remains open while the air conditioner is operating.

Next, when a signal for blocking the air conditioning operation of the air conditioner is applied, the controller (not shown) sends a signal to the motor 230 to drive the motor 230 again. At this time, the rotational driving force of the motor 230 generates a rotational driving force directed upward, unlike the above. Therefore, the pinion gears 231 and 231 'coupled to the motor 230 rotate upward.

When the pinion gears 231 and 231 'rotate upward, the gears 233 and 233' meshed with the pinion gears 231 and 231 'receive downward force.

When the gears 233 and 233 'receive downward force, it means that the rack gears 232 and 232' in which the gears 233 and 233 'are molded also receive the same force downward.

Since the rack gears 232 and 232 'are fixed to the dust input blocking film 235, when the rack gears 232 and 232' are moved by a downward force, the dust input blocking film 235 moves downward. Will be moved to.

When the dust input prevention blocking film 235 is moved downward and the front suction hole 280 is completely shielded, the controller (not shown) cuts off the power supplied to the motor 230.

Therefore, while the air conditioner is not in use, the front inlet 280 is completely shielded by the dust inlet prevention barrier, so that dust accumulates in the front inlet 280 or inside the main body through the front inlet 280. Foreign matter such as dust can be prevented from entering.

The technical spirit of the present invention described so far is not limited to the above embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the above technical scope.

For example, the motor 230 of the present invention may be installed at the right end of the front panel 220 instead of being installed at the left end of the front panel 220.

As another example, a guide part may be formed on the rear surface of the front panel 220 to guide the movement of the dust preventing prevention film 235.

As described above, the present invention provides a dust input prevention barrier that can shield the front inlet of an air conditioner, particularly a stand type air conditioner.

When using such a dust input prevention barrier, it is possible to prevent dust from entering through the front inlet of the air conditioner or accumulating dust on the front inlet while the air conditioner is not used.

Therefore, there is an advantage that can prevent indoor air pollution that may be caused by the accumulation of dust on the front inlet of the stand-type air conditioner.

Claims (4)

In the stand type air conditioner, A front panel 220 forming a front appearance of the stand type air conditioner; A front suction hole 280 formed under the lower end of the front panel 20 to suck outside air; Stand-type air conditioner is installed on the lower rear of the front panel 220 having a dust inlet prevention barrier having a blocking means for controlling the opening and closing of the front inlet. The method of claim 1, wherein the blocking means, Dust input blocking film 235 made of a rectangular panel disposed on the rear lower portion of the front panel 220, First and second rack gears 232 and 232 'fixedly installed in the longitudinal direction at the rear left and right ends of the dust preventing prevention film 235, First and second pinion gears 231 and 231 ′ disposed above the rack gears 232 and 232 ′ and respectively engaged with gears of the rack gears 232 and 232 ′, respectively; A connecting shaft 234 for coupling the rotating shafts of the first and second pinion gears 231 and 231 'to each other; And a motor 230 for generating a driving force for enabling the rotation of the first and second pinion gears (231, 231 '). The method of claim 2, The motor is a stand-type air conditioner having a dust input prevention barrier, characterized in that spaced apart to the left from the right end edge of the dust input prevention barrier is fixed to the left end of the lower rear of the front panel (220). The method of claim 2, Fastening holes are formed at upper and lower ends of each of the first and second rack gears, The first and second rack gear is a stand-type air conditioner having a dust input prevention barrier, characterized in that the first and second rack gear is fixed to the dust input prevention barrier by the fastening means tightened through the fastening hole.

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