KR20080059752A - Indoor unit for air conditioner - Google Patents

Abstract

An indoor unit for an air conditioner is provided to improve the air purifying efficiency and to increase the convenience of use by installing a cleaning device for purifying air and sterilizing germs. An indoor unit for an air conditioner comprises an intake grill, an orifice, and a cleaning device(200). The intake grill guides an inflow of indoor air, and filters impurities included in the indoor air. The orifice guides the flow direction of the indoor air flowed via the intake grill. The cleaning device sterilizes and purifies air guided to the orifice. The cleaning device includes a sterilization unit(220) sterilizing germs by emitting ultraviolet rays, a purifying unit(240) purifying air by steaming, and a cleaning control unit(260) controlling operation of the sterilization unit and the purifying unit.

Description

Indoor unit of air conditioner {Indoor unit for air conditioner}

Figure 1 is a bottom perspective view showing the appearance of the intake grill is opened in the indoor unit of the air conditioner according to the prior art.

Figure 2 is a bottom perspective view showing the inside by separating the front panel from the indoor unit of the air conditioner according to the present invention.

Figure 3 is an exploded perspective view showing the internal configuration of the indoor unit of the air conditioner according to the present invention.

Figure 4 is a bottom view showing a state in which the cleaning device constituting the main portion of the indoor unit of the air conditioner according to the present invention installed in the orifice.

Figure 5 is an internal configuration schematically showing the internal configuration of the cleaning device constituting the main portion in the indoor unit of the air conditioner according to the present invention.

6 is an operational state diagram showing the flow direction of air when the indoor unit of the air conditioner according to the present invention is operated.

Explanation of symbols on the main parts of the drawings

100. Indoor unit 110. Front panel

112. Inlet port 114. Outlet port

116. Louver 118. Motor cover

119. Motor repair cover 120. Suction grill

122.Airflow 124.Air Filter

130.Cabinet 140.Base

142.Air Guide 150.Drain Pan

152. Collection space 154. Through hole

160. Indoor heat exchanger 170. Indoor fan

172. Fan motor 180. Orifice

182. Orifice ball 184. Tightening groove

190. Control box 198. Printed circuit board

200. Cleaner 210. Foreign substance detection unit

212. Infrared irradiation unit 214. Infrared reflection unit

220. Sterilization means 240. Purification means

242. Injection tube 242 '.

244. Purification fluid storage section 246. Injection guide

248. Purifying fluid guide hoses 260. Clean control means

262. Clean Control Box 264. Clean Installation

264 '. Tightening hole 266. Control part

268. Wires

The present invention relates to an indoor unit of an air conditioner, and more particularly, a cleaner device for sterilizing bacteria and purifying the air at one side of an orifice for guiding the flow direction of air introduced into the indoor unit is provided for more comfortable air. It relates to an indoor unit of an air conditioner capable of discharging.

In general, an air conditioner is a cooling / heating system that cools a room by a repetitive action of inhaling hot air in a room, exchanging heat with a low temperature refrigerant, and then discharging it into the room. -Condenser-Expansion valve-Evaporator which forms a series of cycles.

In particular, the air conditioner is mainly an outdoor unit (sometimes called 'outside' or 'heat sink') installed outdoors, and an indoor unit (sometimes called 'indoor' or 'heat absorbing side') mainly installed inside a building. The outdoor unit is provided with a condenser (outdoor heat exchanger) and a compressor, and the indoor unit is provided with an evaporator (indoor heat exchanger).

And, as is well known, air conditioners can be broadly divided into separate type air conditioners in which the outdoor unit and the indoor unit are separately installed, and integrated air conditioners in which the outdoor unit and the indoor unit are installed integrally, and separate type air conditioning in consideration of installation space or noise. The group is preferred.

Hereinafter, a configuration of a general multi-type air conditioner indoor unit (hereinafter, referred to as 'room') will be described with reference to the accompanying drawings.

Figure 1 is an exploded perspective view showing the configuration of the air conditioner indoor unit according to the prior art, Figure 2 is a perspective view showing the configuration of the grill lifting means in the indoor unit of the air conditioner according to the prior art.

As shown in these figures, the indoor unit 1 of the air conditioner is mounted so that the upper part is inserted and fixed inside the ceiling and the lower surface is exposed below the ceiling.

In addition, the indoor unit 1 is rotatably installed in the front panel 10 and the open central portion of the front panel 10 to form a border portion of the lower surface, the indoor air flows into the indoor unit (1) A suction grill 20 to form an upper appearance of the indoor unit 1 and a cabinet 30 in which a plurality of components are built-in, and an upper surface of the cabinet 30. The overall appearance is formed by the base 40 to allow the to be mounted inside the ceiling.

The front panel 10 is perforated in a rectangular shape to form a suction port 12, the suction port 12 is equipped with a suction grill 20. The suction port 12 guides the indoor air to be introduced into the indoor unit, and the suction grill 20 has a plurality of air flow holes (not shown) which are long and horizontally cut out.

In addition, an air filter 22 is provided in front of the suction grill 20. The air filter 22 is a configuration for filtering foreign matter in the air introduced into the indoor unit 1 through the air flow hole.

A discharge port 14 is drilled in the lower surface of the front panel 10. The discharge port 14 guides the air introduced into the suction port 12 to be discharged back to the indoor space after passing through the indoor unit, and the louver 16 is rotatably installed inside the discharge port 14.

Therefore, the air discharged into the indoor space through the discharge port 14 is in contact with the louver 16 and the flow direction is changed at every moment to reach the corner of the indoor space.

An orifice 50 is provided inside the suction port 12. The orifice 50 guides the purified air to flow upward while passing through the air filter 22. The orifice 50 is bored up and down in a central portion to form the orifice hole 52.

The plasma filter 60 is provided below the orifice hole 52. The plasma filter 60 removes foreign matter contained in the air by generating a plasma, thereby removing fine dust not filtered by the air filter 22.

And, although not shown, the upper side of the orifice 50 is provided with a blowing means for sucking and blowing the indoor air into the indoor unit, the heat exchanger for exchanging the air blown by the blowing means to the refrigerant outside the blowing means; Equipped is common.

However, in the prior art configured as described above, there are the following problems.

That is, the air conditioner indoor unit according to the prior art is provided with an air filter 22 and a plasma filter 60 for removing foreign matter from the air. However, sterilization means for sterilizing bacteria contained in the air is not provided.

Therefore, since dust and foreign matter collected in the air filter 22 provide an environment suitable for breeding bacteria, contaminated air is discharged into the indoor space, thereby degrading the user's health.

In addition, as bacteria propagate in the air filter 22, the air discharged into the indoor space may cause odors, such as a mold smell, to cause a user's dissatisfaction.

Therefore, an object of the present invention for solving the above problems, by providing a clean device for sterilizing bacteria and at the same time purifying the air on one side of the orifice for guiding the flow direction of the air introduced into the indoor unit, more comfortable air It is to provide an indoor unit of the air conditioner to enable the discharge.

Another object of the present invention is to provide an indoor unit of an air conditioner by further providing a foreign matter detecting means on one side of the cleaning device to detect foreign matter in the air flowing into the orifice and to operate the cleaning device automatically.

The indoor unit of the air conditioner according to the present invention includes: an intake grill for guiding the inflow of indoor air and filtering out foreign substances contained in the indoor air introduced with an air filter; An orifice for guiding a flow direction of indoor air introduced through the suction grill; And a clean device for sterilizing and purifying the air guided to the orifice.

The cleaning apparatus includes sterilization means for disinfecting germs by emitting ultraviolet rays, purifying means for purifying air by injecting steam, and clean control means for controlling operations of the sterilization means and purifying means. Characterized in that configured to include.

One side of the clean control means, characterized in that the foreign matter amount sensing unit for generating an electrical signal by detecting the amount of foreign matter by irradiating infrared rays.

The sterilization means is characterized in that spaced apart from the purification means.

The purifying means may include an injection tube having an injection hole formed therein for injection of vapor, a purification liquid storage unit for storing a purification liquid injected through the injection tube, and a purification liquid installed between the purification liquid storage unit and the injection tube. Characterized in that it comprises a spray guide to guide the injection pipe.

The inner side of the clean control means, characterized in that the control unit for receiving electric signals from the foreign matter amount sensing unit to selectively apply power to the sterilization means and purification means.

The sterilization means is characterized in that the gas containing the neon is filled.

One side of the lower surface of the orifice, characterized in that the fastening groove is fastened to one side of the cleaning device.

The indoor unit of the air conditioner according to the present invention configured as described above has an advantage of more comfortable harmony with the indoor space by purifying and sterilizing the indoor air introduced into the interior.

Hereinafter, with reference to the accompanying drawings, the configuration of the indoor unit of the air conditioner according to the present invention will be described in detail.

FIG. 2 is a bottom perspective view showing the inside of the air conditioner indoor unit by separating the front panel from the indoor unit of the present invention, and FIG. 3 is an exploded perspective view showing the internal configuration of the indoor unit of the air conditioner according to the present invention. .

As shown in these figures, the indoor unit 100 of the air conditioner has an upper portion inserted into the ceiling and fixed, and the lower surface is exposed to the lower side of the ceiling.

In addition, the indoor unit 100 has a front panel 110 that forms an edge portion of the lower surface, and a suction grill 120 installed at the center of the front panel 110 to allow indoor air to flow into the indoor unit 100. And a cabinet 130 which forms an upper appearance of the indoor unit 100 and includes a plurality of components therein, and a plurality of cabinets that are mounted inside the indoor unit 100 while shielding the upper surface of the cabinet 130. The overall appearance is formed by the base (140 in FIG. 3) supporting the load of the part.

The front panel 110 has a rectangular plate shape in which a center portion is perforated in a rectangular shape, and a suction port 112 is provided at the center portion of the front panel 110. The suction grill 120 is positioned in the suction port 112 to selectively filter foreign matter in the air introduced into the indoor unit 100 through the suction port 112.

To this end, an air filter (refer to reference numeral 124 of FIG. 6) is installed on the upper surface of the suction grill 120 so that air containing foreign matter does not flow into the indoor unit 100. The air filter 124 penetrates the suction grill 120 to selectively filter only foreign matter from the air introduced into the indoor unit 100.

The air filter 124 is formed of a flexible material and a fine hole (not shown) is perforated on the entire surface. Therefore, foreign matters in the air introduced into the indoor unit 100 through the suction port 112 remain without passing through the micro holes and are attached to the lower surface of the air filter 124 so that the foreign matters inside the indoor unit 100. Loading is prevented beforehand.

In addition, the suction grill 120 serves to guide the indoor air to be introduced into the indoor unit 100, and for this purpose, the air flow hole is long at equal intervals on the entire surface of the suction grill 120. 122 is formed.

The air flow hole 122 is formed by penetrating the suction grill 120 in the vertical direction, the space in the center of the indoor unit 100 is configured to communicate with the room.

Accordingly, when the indoor unit 100 is operated, indoor air may be introduced into the indoor unit 100 through the air flow hole 122, and may be introduced into the indoor unit 100 through the air flow hole 122. At the same time it is purified by the air filter 124.

Then, the front / rear left / right of the front panel 110 is formed with a discharge port 114 of a long rectangular shape. The discharge port 114 is configured to guide the indoor air sucked into the indoor unit 100 through the suction port 112 to be discharged back to the room, and the inside of the indoor unit 100 is formed to communicate with the room. .

The louver 116 is mounted inside the discharge port 114 to force the flow direction of the air discharged into the room through the discharge port 114. The louver 116 has a square plate shape corresponding to the shape and size of the discharge port 114, and is rotatably installed based on both ends.

A louver motor (not shown) is coupled to one end of the louver 116. The louver motor generates rotational power when power is applied, and is coupled to the louver 116 to transmit rotational power to the louver 116.

The louver motor is provided in a quantity corresponding to the louver 116. That is, one louver motor is coupled to one louver 116. Accordingly, by selectively operating the plurality of louver motors, the plurality of louvers 116 may be independently operated.

More specifically, only one of the four louver motors may be operated so that only one louver 116 axially coupled thereto may be repeatedly rotated by a predetermined angle, and all the louvers 116 may be rotated by operating all four louver motors. There will be.

As a result, when the upper surface of the louver 116 and the air discharged through the discharge port 114 come into contact with each other, the contact angle between the louver 116 and the discharged air is changed every time by the rotation of the louver motor. The discharged air is forced to be discharged in various directions.

The motor cover 118 is provided at the upper edge portion of the front panel 110. The motor cover 118 is shielded so that the louver motor is not exposed to the upper side as the louver motor is installed in the upper edge portion of the front panel 110, four are provided in the same shape.

In addition, a motor repair cover 119 is provided at a lower side of the lower side of the front panel 110, that is, spaced apart from the motor cover 118. The motor repair cover 119 is configured to selectively replace the louver motor by being selectively separated from the front panel 110 when the louver motor breaks down.

The drain pan 150 is provided above the front panel 110. The drain pan 150 is configured to collect the condensed water generated on the outer surface of the indoor heat exchanger 160 when the refrigerant passing through the interior of the indoor heat exchanger 160 and the indoor air heat exchange will be described below. It is formed larger than the outer size of the indoor heat exchanger (160).

In addition, an upper surface of the drain pan 150 is provided with a collecting space recessed in the downward direction (reference numeral 152 of FIG. 6). Since the lower end of the indoor heat exchanger 160 is accommodated and seated in the collection space 152, the condensed water formed on the outer surface of the indoor heat exchanger 160 flows downward to be accommodated in the collection space 152. .

The drain pan 150 also serves to guide the air purified by the air filter 124 to flow upward through the drain pan 150.

That is, the through hole 154 is drilled in the center of the drain pan 150. Therefore, the indoor air can flow upward through the suction port 112 and the through hole 154.

As described above, the indoor heat exchanger 160 is installed on the upper surface of the drain pan 150, more specifically, on the collecting space 152. The indoor heat exchanger 160 is for heat-exchanging the indoor air purified by the air filter 124, the refrigerant to heat exchange with the indoor air flows.

In addition, the indoor heat exchanger 160 is bent in a substantially "wh" shape when viewed from above. More specifically, the indoor heat exchanger 160 has a shape in which the elongated tube is bent a plurality of times in order to increase the heat exchange area with air, and is generally rectangular in shape.

Therefore, the indoor air flowing upward through the through hole 154 is forced to flow in the front and rear / left and right directions to exchange heat with the indoor heat exchanger 160, the outer surface of the indoor heat exchanger 160 during the heat exchange process Condensate generated in the water is collected in the collecting space (152).

The above-described cabinet 130 is provided outside the indoor heat exchanger 160. The cabinet 130 is octagonal when a plurality of plates are coupled to each other when viewed from above, and forms the front / rear left / right surfaces of the indoor unit 100 to shield the interior of the indoor unit 100.

Then, the lower end of the cabinet 130 is coupled in contact with the upper edge of the front panel 110, the upper end is coupled to the lower surface of the base 140 to be described below.

Therefore, when the base 140 and the front panel 110 are coupled to the upper and lower ends of the cabinet 130, a space is formed inside the indoor unit 100 so that a plurality of parts can be built.

An air guide 142 is provided between the cabinet 130 and the indoor heat exchanger 160. The air guide 142 has a hollow rectangular tube shape to prevent the air heat exchanged with the refrigerant from leaking out of the cabinet 130 while flowing outward from the inside of the indoor heat exchanger 160.

Therefore, the cross-sectional size of the air guide 142 is preferably larger than the indoor heat exchanger 160 and smaller than the front panel 110.

In addition, an indoor fan 170 is installed at the center of the cabinet 130. The indoor fan 170 is configured to force the air flow in conjunction with the fan motor 172 that generates a rotational power when the power is applied, generates a suction force in the upper direction to the center portion and from the inner side to the outer circumferential direction Will generate wind power.

Therefore, when the indoor fan 170 receives the rotational power from the fan motor 172 and rotates at a high speed, the suction force generated at the lower side is transmitted to the through hole 154 and the suction port 112 to suck the indoor air. It becomes possible.

In addition, the indoor air sucked into the center portion of the indoor fan 170 is blown toward the outer circumferential surface to pass through the indoor heat exchanger 160, thereby performing heat exchange by the refrigerant.

On the other hand, the orifice 180 is provided on the lower side of the indoor fan 170, more specifically, inside the through hole 154. The orifice 180 serves to guide the air flowing upward from the lower side of the drain pan 150 to the center portion of the indoor fan 170, and has a cylindrical shape that increases in diameter downward. The lower end is coupled to be on the same plane as the bottom of the drain pan 150.

In addition, an orifice hole 182 is formed inside the orifice 180 to guide the air below the drain pan 150 to penetrate the drain pan 150.

The inner diameter of the orifice hole 182 is formed to be slightly smaller than the outer diameter of the indoor fan 170, and is configured such that the indoor fan 170 is located inside the orifice hole 182.

Therefore, when the indoor fan 170 rotates to generate a suction force to the lower side, the air of the lower side based on the drain pan 150 flows upward along the orifice hole 182 to the indoor fan 170. Inflow to the center of the

The control box 190 is provided on the lower right side of the orifice 180. The control box 190 is a configuration for controlling the operation of the indoor unit 100, a space of a predetermined size is formed inside the printed circuit board 198 is generally embedded.

A fastening groove 184 is provided at a substantially center portion of the bottom surface of the orifice 180. The fastening groove 184 is to be fastened by the cleaning device 200, which will be described below by a fastening member such as a screw, two or two formed on the left / right side of the lower surface of the orifice 180, respectively.

On the other hand, the lower side of the orifice 180 in more detail in the place spaced apart from the control box 190 to the left is provided with a cleaning device 200 that is the main component of the present invention. The cleaning device 200 purifies the air introduced into the indoor unit through the suction port 112 and sterilizes the bacteria in the air. The cleaning device 200 has an inner side opened in the direction in which the control box 190 is installed. It has a shape.

That is, the cleaning device 200 is configured to selectively operate when a large amount of foreign material is included in the indoor air from which the foreign material has been removed while passing through the air filter 124, and the right side facing the right side of the cleaning device 200 ( The foreign matter sensing unit 210 is provided on the pair of clean control boxes 262 to be described below.

The foreign matter detection unit 210 is configured to detect an amount of foreign matter by generating an electrical signal when the foreign material is detected by irradiating infrared rays, from the infrared irradiation unit 212 and the infrared irradiation unit 212 to irradiate large infrared rays And an infrared reflecting unit 214 that reflects the irradiated infrared rays and sends them to the infrared irradiation unit 212.

The infrared irradiator 212 and the infrared reflector 214 are provided in numbers corresponding to positions corresponding to each other. Therefore, when the plurality of infrared irradiation unit 212 is irradiated with infrared rays, respectively, and is not reflected by the corresponding infrared reflecting unit 214, this is because the irradiated infrared rays are interfered by foreign matter, and thus the infrared rays that do not return By detecting the number of can be detected the amount of foreign matter contained in the air.

Hereinafter, the configuration of the cleaner 200 will be described in detail with reference to FIGS. 4 and 5.

4 is a bottom view showing a state in which a cleaning device constituting a recess in an indoor unit of an air conditioner according to the present invention is installed in an orifice, and FIG. 5 illustrates a recess in an indoor unit of an air conditioner according to the present invention. An internal configuration diagram is shown schematically showing the internal configuration of the cleaner.

As shown in these figures, the cleaning device 200 is a sterilizing means 220 for sterilizing bacteria by largely radiating ultraviolet rays, a purified water stage 240 for purifying the air by injecting steam, and the sterilizing means ( 220 and clean control means 260 for controlling the operation of the purifying means 240 is configured.

The sterilization means 220 has a 'c' shape by bending a tube having a round cross section a plurality of times, the left end of which is connected to the clean control means 260 and spaced outwardly from the purifying means 240. It is fixed in a state.

In addition, the inside of the sterilization means 220 is filled with a gas containing neon, and the foreign material detection unit 210 is configured to emit ultraviolet light by selectively applying power in accordance with the generated electrical signal.

Therefore, the sterilization means 220 is formed to be sealed so that the gas containing neon filled therein does not leak to the outside, it is preferably made of ultra-high-purity quartz tube to generate heat when the power is applied.

The purification means 240 is provided inside the sterilization means 220. Like the sterilization means 220, the purifying means 240 is configured to selectively inject steam when the foreign matter detection unit 210 detects foreign matter and generates an electrical signal.

To this end, the purifying means 240 is a spray pipe 242 having a spray hole 242 'is formed so that the steam is injected, and the purifying liquid storage unit 244 for storing the purifying liquid to be injected through the spray pipe 242 And an injection guide 246 installed between the purification liquid storage unit 244 and the injection pipe 242 to guide the purification liquid to the injection pipe 242.

The injection pipe 242 is formed to have a larger diameter than the sterilization means 220, the purification liquid guided into the injection pipe 242 by the injection guide 246 on the inner peripheral surface of the injection pipe 242 A plurality of small diameter injection holes 242 ′ are formed in the perforations so as to be injected into the central portion of the purifying means 240.

Therefore, the purification liquid introduced into the injection pipe 242 is guided by the injection hole 242 'and injected below the orifice hole 182, so that the air passing through the suction port 112 is passed through the orifice hole 182. It is purified before it is introduced into.

The injection pipe 242 is installed in communication with the injection guide 246. The injection guide 246 is to suck the purification liquid stored in the purification liquid storage unit 244 to discharge into the injection pipe 242, the pump is applied, the clean control box 262 to be described below Is installed on the inner left side (see Fig. 5).

In addition, the injection guide 246 is connected in communication with the other end of the purification liquid guide hose 248 connected to the left end of the injection pipe 242, whereby the purification liquid inside the purification liquid storage unit 244 It is forced to be introduced into the injection pipe 242.

On the other hand, the clean control means 260 is the exterior is formed by the purification control box 262 of the hollow rectangular shape, the clean control box 262 is provided in pairs to the left side of the lower surface of the orifice 180 It is installed spaced apart in up / down direction. In addition, the foreign matter detection unit 210 is installed on the surfaces of the clean control box 262 facing each other.

More specifically, the infrared irradiation unit 212 is installed in any one of the pair of clean control box 262, the infrared reflecting unit 214 is installed in the other clean control box 262. In addition, the upper and lower surfaces (see FIG. 5) of the clean control box 262 are provided with a purification installation piece 264. The purification installation piece 264 is formed in each of a pair of clean control box 262 so that the purification means 240 can be installed on the lower surface of the orifice 180, the above-mentioned fastening groove 184 ) Is fastened with a fastening member such as a screw.

Accordingly, the purification installation piece 264 has a fastening hole 264 'for inserting a fastening member (not shown), respectively, and the fastening hole 264' and the fastening groove 184 are coupled by the fastening member. When the cleaning device 200 is not separated from the lower surface of the orifice 180.

On the other hand, the inner left side of the clean control box 262 is provided with a purifying liquid storage part 244 which is one component of the purifying means 240. The purification liquid storage unit 244 forms a space therein to store and store the purification liquid, and the inside of the purification liquid storage unit 244 communicates with the injection guide unit 246.

The purifying liquid is injected into the lower space of the orifice 180 through the injection hole 242 'and purifies the air introduced into the indoor unit 100 through the suction port 112. That is, the deodorant or the fragrance is applied to the purifying liquid, and the air discharged into the indoor space is made more comfortable by deodorizing or smelling the odor of the air introduced into the indoor unit 100.

The control unit 266 is provided below the purification liquid storage unit 244. The control unit 266 selectively applies power to the sterilizing means 220 and the purifying means 240 so that the sterilizing means 220 and the purifying means 240 operate, and the foreign substance detecting unit 210 is operated. It is configured to receive electrical signals from.

That is, the control unit 266 is connected to the foreign matter detection unit 210 by a wire (not shown) to receive an electrical signal from the foreign matter detection unit 210, and is exposed to the right side of the control unit 266. The other wires 268 are connected to the injection guide 246 and the sterilization means 220.

Therefore, when the foreign matter detection unit 210 detects the amount of foreign matter contained in the air by using infrared rays and generates an electrical signal, the electrical signal is sent to the controller 266 along the wire 268. The control unit 266 receiving the electrical signal operates the purifying means 240 and the sterilizing means 220 by applying power to the injection guide 246 and the sterilizing means 220.

Hereinafter, the operation of the indoor unit of the air conditioner having the above configuration will be described with reference to FIGS. 3 to 6.

First, when power is applied to the indoor unit 100, the fan motor 172 generates a rotational force, and the rotational force is transmitted to the indoor fan 170 to rotate the indoor fan 170 to thereby indoor unit 100 This will generate air flow inside.

That is, the suction force in the upper direction is generated to the lower central portion of the indoor fan 170, and the wind power is generated in the outer circumferential direction.

Therefore, the suction force generated in the lower side of the indoor fan 170 is transmitted to the suction grill 120 so that the indoor air is forced to flow into the indoor unit 100. The indoor air sucked into the indoor unit 100 is filtered by the air filter 124 after passing through the inlet 112.

Thereafter, the air filtered by the air filter 124 passes through the orifice hole 182 and flows upward to the inside of the indoor unit 100.

At this time, the infrared irradiation unit 212 is a state that detects the infrared rays reflected by the infrared reflecting unit 214 at the same time irradiated with infrared rays. Therefore, when the amount of foreign matter that has not been removed in the air primarily filtered by the air filter increases, the number of infrared rays returned to the infrared irradiation unit 212 is significantly reduced.

As a result, the infrared irradiation unit 212 generates an electrical signal, and the electrical signal generated by the infrared irradiation unit 212 is transmitted to the control unit 266 along the wire 268. As the electrical signal is transmitted to the control unit 266, the control unit 266 applies power to the injection guide unit 246 and the sterilization unit 220.

When the injection guide 246 and the sterilization means 220 are supplied with power, the injection guide 246 pumps the purification liquid in the purification liquid storage unit 244 to supply the purification liquid guide hose 248. It is guided to the injection pipe 242 through, the purifying liquid introduced into the injection pipe 242 is injected to the lower side of the orifice 180 through the injection hole 242 'to remove the odor of air or It is transformed into aromatic air.

The sterilizing means 220 generates heat and simultaneously dissipates ultraviolet rays to sterilize bacteria in the air flowing into the orifice hole 182.

On the other hand, the indoor air penetrating the orifice hole 182 is forced into the outer circumferential direction after flowing into the lower center portion of the indoor fan 170, the blown indoor air is heat-exchanged with the indoor heat exchanger 160 Is cooled.

The indoor air cooled by this process is guided by the air guide 142 and the base 140 and is discharged into the room through the discharge port 114. Of course, the louver 116 is rotated by a predetermined angle to guide the discharge to the corner of the room by interfering the discharge air.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications may be made based on the present invention to those skilled in the art within the above technical scope.

For example, in the embodiment of the present invention, but the shape of the purifying means 240 and sterilization means 220 is formed in a roughly 'c' shape, if necessary, may be formed to correspond to the shape of the orifice hole Of course.

In addition, in the embodiment of the present invention, the foreign matter detection unit 210 is provided on one surface of the clean control box 262, but formed on one side of the purifying means 240 or sterilization means 220 more efficiently. Obviously, it can be configured to detect foreign matter.

In the indoor unit of the air conditioner according to the present invention having the configuration as described above, a cleaning device 200 for sterilizing bacteria and purifying air at one side of the orifice is provided.

Therefore, there is an advantage that the air purification efficiency is improved by discharging more comfortable air into the room.

Further, in the present invention, the foreign matter detection unit is further provided on one side of the cleaner to detect the amount of foreign matter in the air flowing into the orifice so that the cleaner can be selectively operated.

Therefore, the power consumption is significantly reduced, there is an advantage that the ease of use of the indoor unit is improved.

By providing a foreign matter detection means on one side of the cleaning device by detecting the foreign matter in the air flowing into the orifice by providing the indoor unit of the air conditioner to detect the foreign matter in the air flowing into the orifice to automatically operate the cleaning device. have.

Claims (8)

A suction grill for guiding the inflow of indoor air and filtering foreign matters contained in the indoor air introduced through the air filter; An orifice for guiding a flow direction of indoor air introduced through the suction grill; An indoor unit of an air conditioner, comprising: a clean device for sterilizing and purifying air guided to the orifice. According to claim 1, The cleaning device, Sterilization means for sterilizing germs by radiating ultraviolet rays; Purifying means for purifying air by injecting steam; Indoor unit of the air conditioner, characterized in that it comprises a clean control means for controlling the operation of the sterilization means and the purification means. According to claim 2, One side of the clean control means, Indoor unit of the air conditioner, characterized in that the foreign matter quantity sensing unit for generating an electrical signal by detecting the amount of foreign matter by irradiating the infrared. The indoor unit of an air conditioner according to claim 2, wherein the sterilizing means is spaced apart from the purifying means. The method of claim 3, wherein the purifying means, An injection tube in which injection holes are formed so that steam is injected; Purification liquid storage unit for storing the purification liquid injected through the injection pipe; The indoor unit of the air conditioner, characterized in that it is provided between the purifying liquid storage unit and the injection pipe comprises a spray guide for guiding the purification liquid to the injection pipe. According to claim 3, Inside one side of the clean control means, The indoor unit of the air conditioner, characterized in that the control unit for receiving the electrical signal from the foreign matter detection unit and selectively apply power to the sterilization means and purification means. The indoor unit of an air conditioner according to claim 4, wherein the sterilizing means is filled with a gas containing neon. According to claim 1, At one side of the lower surface of the orifice, Indoor unit of the air conditioner, characterized in that the fastening groove is fastened to one side of the cleaning device.

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