KR20070075509A - Indoor unit for air conditioner - Google Patents

Abstract

An indoor unit for an air conditioner is provided to sense air pollution degree of space for air conditioning by accurately sensing the pollution degree of air circulated inside an outer case by the sensing unit, and to reduce maintenance costs for using the air conditioner by improving energy efficiency. An indoor unit for an air conditioner comprises an outer case, a front door, a door frame(460) and a gas sensing unit(600). The outer case is provided with internal space. The front door selectively shields the front of the outer case. The door frame forms a rear surface of the front door, and supports the front door. The gas sensing unit is placed on the rear surface of the door frame, and senses cleanness degree of air circulated in the inside of the outer case.

Description

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

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

Figure 2 is a perspective view showing a state in which the front of the air conditioner indoor unit of the prior art opened.

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

Figure 4 is a perspective view showing an open state of the front door of the indoor unit of the air conditioner employing a preferred embodiment according to the present invention.

5 is a perspective view showing a gas detecting means that is a main configuration of an indoor unit of an air conditioner in which a preferred embodiment according to the present invention is employed;

6 is an exploded perspective view showing a gas detecting means which is a main component of an indoor unit of an air conditioner in which a preferred embodiment according to the present invention is employed;

Explanation of symbols on the main parts of the drawings

100. Outer case 200. Front frame

220. Side discharge outlet 222. Left discharge outlet

222 '. Left discharge vane 224. Right discharge outlet

224 '. Right discharge vane 240. Top discharge outlet

242. Top vane 260. Left side

262. Left frame 264. Left intake

266. Left suction vane 268. Left filter

280. Right side section 282. Right frame

284. Right suction port 286. Right suction vane

288. Right filter 300. Rear frame

310. Top panel 320. Indoor heat exchanger

330. Drain section 340. Blower section

342. Blowing fan 344. Fan housing

346. Dust collector 400. Front door

420. Control panel 422. Display

424. Operation Buttons 426. Rear Panel Cover

440. Front cover 442. Cover seating groove

444. Metallic materials 460. Door frames

462. Permanent Magnet 500. Base Frame

520. Front suction port 540. Lower filter part

542. Lower surface prefilter 544. Hepa filter

546. Nano filter 600. Gas detection means

620. Sensor unit 622. Sensor

624. Sensor board 626. Electric parts

640. Sensor seat 642. Fixing protrusion

644. Hook hanger 646. Mounting power outlet

660. Seat Cover 662. Vent

664. Fastening part 666. Hook projection

668. Cover Power Entry

The present invention relates to an air conditioner, and more particularly, to an indoor unit of an air conditioner having a gas detecting means.

Air conditioners are in increasing demand to create a more comfortable and comfortable living environment. This air conditioner is a device for maintaining the air of the space for air conditioning in the most optimal state according to the purpose, in general, the air conditioner is installed in a room or wall of the room such as a vehicle, office or home to cool the room As a cooling / heating device for heating or heating, a device constituting a series of refrigeration cycles consisting of a compressor, a condenser, an expansion valve, and an evaporator.

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 indoors) 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, the indoor unit of the separate type air conditioner will be described with reference to the drawings.

Figure 1 is a perspective view showing the appearance of the air conditioner indoor unit according to the prior art, Figure 2 is a perspective view showing an open state of the front of the air conditioner indoor unit according to the prior art.

First, referring to the external appearance of the indoor unit of the air conditioner with reference to the drawing shown in FIG. 1, the indoor unit is provided with an outer case 10 forming a plurality of parts therein while forming an inner space and forming an exterior. In the inner space of the outer case 10, a plurality of parts are built in such a manner that the air is sucked in the space for air conditioning, and then discharged into the space for air conditioning.

The front of the outer case 10 is mounted to the front door 20 to form a front appearance. The front surface of the front door 20 may be used as a tempered glass that is formed of a safety glass reinforced by compressing the surface portion and tensioning the inside, and may be used VCM (VCM) steel sheet coated with a film layer.

The upper half of the front door 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 window 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.

The left and right upper half portions of the front door 20 are provided with side discharge parts (not shown) which have a predetermined width and are stepped to the rear at a predetermined angle. The side discharge portion (not shown) is equipped with a vane 12 to selectively shield the side discharge portion. The vanes 12 rotate to selectively shield side discharge portions (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 12 rotates to move the side discharge part (not shown). Will be opened. When the side discharge portion is opened, the air harmonized inside the outer case 10 is discharged to the outside of the outer case 10 through the side discharge portion (not shown), so that the user wants air in the space for air conditioning. Harmonize with state.

The side suction part 14 is provided below the vane 12. The side suction part 14 is provided to suck the outside of the outer case 10, that is, the side air in the space for air conditioning into the outer case 10.

The front suction part 40 is provided below the lower end of the front door 20, and the front suction part 40 is provided to suck the air in front of the space for air conditioning into the outer case 10. .

Looking at the internal configuration of the outer case 10 with reference to Figure 2, the door frame 22 is mounted on the rear of the front door (20). The door frame 22 is formed in the shape of a grate to support the front door 20, the upper half is formed in the center of the perforated space is provided with a control panel rear cover 36 in which a plurality of parts of the operation unit 30 is built Will be secured.

The front cover 50 is mounted on the rear upper half of the door frame 22. In the central portion of the front cover 50, the cover seating groove 52 in which the operation unit rear cover 36 is seated is molded by being recessed to the rear.

In addition, the rear side of the front cover 50 is equipped with an indoor heat exchanger (not shown) is heat exchanged with the air in the space for air conditioning sucked through the side suction unit 14 and the front suction unit 40 The user can harmonize with the desired air condition.

A lower surface filter 42 is mounted on the upper side of the front suction part 40 to filter foreign substances in the air sucked through the front suction part 40, and the front filter 60 is disposed above the lower filter 42. Is provided to filter the internal air of the outer case 10 once more, and a rear side of the front filter 60 is provided with a blowing fan (not shown) to force the internal air flow of the outer case 10. do.

However, the following problems occur in the indoor unit of the air conditioner according to the prior art as described above.

The indoor unit of the air conditioner according to the prior art configured as described above is not provided with means for detecting the cleanliness of the air flowing inside the outer case 10 to detect the air cleanliness of the space for air conditioning There is a problem that can not be.

Since the air cleanliness is not detected, the pollution degree of the space for air conditioning cannot be measured, and thus a problem occurs that the air cannot be harmonized according to the pollution degree.

Therefore, there is a problem that the efficiency of air conditioning decreases, and as the efficiency of air conditioning decreases, there arises a problem that energy consumption increases.

In addition, as the air conditioner does not effectively perform the role of the air cleaner, there is a problem that the demand of the air cleaner is further generated, thereby causing a problem of consumer dissatisfaction.

In addition, as the energy consumption is increased, there is a problem that the maintenance cost according to the use of the air conditioner increases.

The purpose of the indoor unit of the air conditioner according to the present invention for solving the above problems is to detect the pollution of the air flowing in the interior of the indoor unit of the air conditioner that can detect the air pollution of the space for air conditioning To provide.

The indoor unit of the air conditioner according to the present invention for achieving the above object, the outer case is formed in the interior space while forming the exterior, the front door to selectively shield the front of the outer case, the front door Door frame for supporting the front door while forming the rear of the, characterized in that it comprises a gas detection means provided on the rear of the door frame for detecting the cleanliness of the air flowing in the outer case.

The gas detecting means includes a sensor unit for detecting the cleanliness of the air flowing in the outer case, a sensor seat unit on which the sensor unit is seated, and a seat cover covering the front surface of the sensor seat unit. It features.

The seat cover is characterized in that the vent is formed.

The sensor seat is characterized in that the rear is mounted to be fixed to the rear of the door frame.

It is characterized in that the power inlet is formed on the upper surface of the seat cover and the sensor seat.

The sensor seating portion and the seating portion cover is characterized in that the hook is fastened.

According to the indoor unit of the air conditioner configured as described above, there is an advantage that can accurately detect the air pollution of the space for air conditioning.

Figure 3 is an exploded perspective view showing the internal configuration of the air conditioner indoor unit employing a preferred embodiment of the present invention. Looking at the indoor unit of the air conditioner with reference to the bar shown in the drawings, the indoor unit of the air conditioner is provided with an outer case 100 that is formed in a long box shape that forms an inner space while forming an appearance.

The outer case 100 is formed into a front frame 200 supporting the first half of the outer case 100 and a rear frame 300 forming a rear half of the outer case 100 to form a rear exterior. The front surface of the front frame 200 is equipped with a front door 400 that forms the front appearance of the central portion of the front frame 200.

The front door 400 is fastened by a hinge so as to selectively shield the front of the outer case 100 to be rotated forward and backward, the front of the front door 400 is formed of tempered glass.

The tempered glass is a tempered glass that is heated by heating the plate glass to 500 ~ 600 ℃ close to the softening temperature and then quenched by compressed cooling air to compress and strain the glass surface and tensile strain inside the tempered glass is used. Such tempered glass has a bending strength of 3 to 5 times, impact resistance of 3 to 8 times stronger than general glass, and excellent heat resistance.

Therefore, the tempered glass is molded into a shape suitable for use and size before the tempered glass. This tempered tempered glass must be molded to the size and shape suitable for the application before tempered because the glass itself maintains a balance of power inside, so the whole part is broken into small fragments even if only one side is cut a little. Such tempered glass is used in window panes for automobiles and aircraft, anti-theft panes, and the like.

The front door 400, which is formed of tempered glass whose front surface is reinforced, may be formed into a long rectangular plate shape, and may be rounded forward or may be formed flat to have a predetermined curvature. The tempered glass is formed by coating a film having a color to have a color on either or both sides of the front side or the rear side.

An operation unit 420 is provided at the center of the upper half of the front door 400 to allow a user to operate the air conditioner, and the operation unit 420 includes a display window 422 that displays an operation state and a current operating environment of the air conditioner. A plurality of operation buttons 424 are provided for the user to operate the air conditioner directly.

The rear cover is mounted on the rear upper half of the front door 400. The rear cover is formed in a substantially rectangular plate shape to form a perforated center, thereby forming a space for accommodating an operation unit rear cover (426 in FIG. 4) in which a plurality of electronic components provided in the operation unit 420 are embedded. The front frame 200 is mounted on the rear of the rear cover. The front frame 200 is formed in a rectangular box shape with the rear opening, both sides are formed to be slightly inclined toward the outside toward the rear is formed in an inverted trapezoidal shape when viewed from above.

On both sides of the front frame 200, the side discharge port 220 is formed in the shape of a long rectangular hole so that the air harmonized inside the outer case 100 is discharged into a space for air conditioning. On the upper surface of the front frame 200, the upper surface discharge port 240 is formed in a perforated rectangular shape so that the air harmonized inside the outer case 100 is discharged into the space for air conditioning.

The upper vane 242 is rotatably mounted on the upper discharge port 240 to selectively shield the upper discharge port 240. The upper vane 242 is rotatably mounted in the vertical direction by receiving the rotational power by the upper motor (not shown).

The left side discharge port 222 is formed on the left side of the front frame 200, and the left side discharge vane 222 is equipped with a left side discharge vane 222 'and the outer case 100 through the left side outlet 222. The discharge direction of the harmonized air discharged to the left side of the control is controlled according to the user's selection, and the right discharge vane 224 ′ is mounted on the right discharge port 224 formed on the right side of the front frame 200. The discharge direction of the harmonized air discharged to the right side of the outer case 100 through the discharge port 224 is controlled according to the user's selection.

That is, when the user operates the air conditioner by using the operation button 424 provided on the operation unit 420, the left discharge vane 222 'and the right discharge outlet 224 mounted to the left discharge port 222. The right discharge vane 224 ′ is mounted so that the left discharge outlet 222 and the right discharge outlet 224 are opened, and the air harmonized inside the outer case 100 has the left discharge outlet 222 and the right discharge outlet 224. Is discharged into the space for air conditioning. At this time, according to the rotation angle of the left discharge vane 222 'and the right discharge vane 224', the discharge direction of the air is guided and discharged.

On the contrary, when the air conditioner is not used, the left discharge vane 222 'and the right discharge vane 224' are rotated to shield the left discharge outlet 222 and the right discharge outlet 224 to the inside of the outer case 100. Prevents inhalation of dust or foreign objects.

The air harmonized inside the outer case 100 is discharged to the left side of the outer case 100 through the left discharge port 222, and to the right side of the outer case 100 through the right discharge port 224. Discharged and discharged upward of the outer case 100 through the upper surface discharge port 240.

Below the left discharge vane 222 ′, a left side surface portion 260 is provided as a passage through which air in a space for air conditioning in the left side of the outer case 100 is sucked into the outer case 100.

The left side portion 260 is provided with a left frame 262 in which a left suction opening 264 is formed, which has a predetermined width and is formed in a longitudinally long rectangular shape. The left suction opening 264 serves as a passage through which air in a space for air conditioning is sucked.

The right frame 282 is provided with dust and foreign matter contained in the left suction vane 266 mounted to be selectively shielded from the left suction opening 264 and the air sucked into the left suction opening 264. It is formed including a left filter 268 to filter.

The left frame 262 is shaped into a substantially "┏" shape when viewed from above, and the rear half portion is bent backward. The air in the space for air conditioning in the left side of the outer case 100 is sucked from the bent surface.

The right side portion 280 is provided below the right discharge vane 224 ′, which is a passage through which air in a space for air conditioning in the right side of the outer case 100 is sucked into the outer case 100. The right side surface portion 280 has a right side frame 282 formed with a perforated right suction port 284, which is a passage through which air in a space for air conditioning is formed, while the center portion is formed in a horizontally long rectangular grille shape.

The right frame 282 is provided with the right suction vane 286 mounted to be capable of selectively shielding the right suction port 284 and dust and foreign matter contained in the air sucked inside the right suction port 284. It is formed including a right filter 288 for filtering.

The right frame 282 is shaped into a substantially "┛" shape when viewed from above, and the rear portion is bent backward. The air in the space for air conditioning in the right side of the outer case 100 is sucked from the bent surface.

On the other hand, the rear frame 300 is mounted on the rear side of the front frame 200. The rear frame 300 is formed in the shape of a rectangular box with the front, upper and lower surfaces open, 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.

The upper panel 310 is provided on the opened upper surface of the rear frame 300 to shield the opened upper surface of the rear frame 300. The upper panel 310 is formed in a rectangular box shape having an open front and a lower surface and is mounted on an upper end of the rear frame 300, and the left and right surfaces of the upper panel 310 are left of the rear frame 300. It is preferable to be formed to have an angle corresponding to the inclination angle of the surface and the right side. Therefore, the upper panel is formed into a substantially trapezoidal shape when viewed from above, and an indoor heat exchanger 320 is mounted below the upper panel 310.

The indoor heat exchanger (320) is mounted on the upper half of the inner space of the rear frame (300), and a cylindrical pipe having a predetermined diameter is formed by bending a plurality of times to form a generally rectangular plate shape as a whole. 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 to be in contact with the inner rear of the rear frame 300, the lower end is mounted in a shape inclined forward toward the lower end to the rear of the lower end of the front frame 200. . In other words, it is mounted inclined in an approximately "/" shape when viewed from the left side.

As such, the upper part of the indoor heat exchanger 320 is mounted to the rear inclined somewhat when the air inside the outer case 100 flowing downward from the upper side is heat exchanged while passing between the indoor heat exchanger 320. This is to improve heat exchange efficiency by having a wide contact area.

A drain 330 is provided at the lower end of the indoor heat exchanger 320. The drain unit 330 is mounted to collect condensate generated while the indoor heat exchanger 320 exchanges heat with air flowing from below, and is formed to have a central portion recessed downward so as to easily collect the condensate. The condensed water is discharged to the outside of the outer case (100).

The blower 340 is mounted below the drain 330. The blower 340 is a fan motor for providing rotational power to the blower fan 342 and the blower fan 342 which is forced to flow the air inside the outer case 100 by the rotational movement, the blower fan 342 It is configured to surround the fan is configured to include a fan housing 344 for guiding the flow of air due to the rotational movement of the blowing fan 342.

The blower fan 342 rotates to suck the air in front of the blower fan and discharges it to the outside. Due to the rotational movement of the blower fan 342, the suction force is generated in the inside of the outer case 100. Due to the suction force generated by the rotational movement of the blower fan 342, the outer case of the air in the space for air conditioning through the left side portion 260 and the right side portion 280 and the front inlet 520 to be described later It is sucked into the interior of the 100.

A fan housing 344 is provided at an outer side of the blowing fan 342. The fan housing 344 is formed to surround the blowing fan 342, and guides the flow of air sucked due to the rotational movement of the blowing fan 342 while protecting the blowing fan 342. That is, the upper surface is opened to guide the air sucked from the front to discharge upward, and the fan housing 344 is formed into a cochlea-shaped leading shape.

The fan housing 344 has a central portion opened to suck the air in front of it, and an upper surface of the fan housing 344 is opened to discharge the air flowing outwardly of the blower fan 342 due to the rotational movement of the blower fan 342. Molded into shape. As described above, the fan housing 344 simultaneously serves to guide the flow of air upward due to the rotational movement of the blowing fan 342 while protecting the blowing fan 342.

The dust collecting filter 346 is mounted on the front surface of the fan housing 344. The dust collecting filter 346 filters the air in the space for air conditioning which is sucked into the outer case 100 through the left side portion 260, the right side portion 280, and the front suction opening 520 once more. Done.

That is, the inside of the outer case 100 by filtering the air of the space for air conditioning filtered through the left filter 268 and the right filter 288 and the filter unit 540 to be described later. This is to remove dust and foreign matter contained in the air to be sucked once more so that cleaner air is sucked into the interior of the outer case 100 so as to discharge the space for air conditioning.

In other words, the lower side of the blower 340, the base frame 500 is mounted on the lower end of the rear frame 300. The base frame 500 is supported while forming the lower end of the outer case 100. The base frame 500 is formed so that the upper surface is opened, the lower surface is formed recessed downward so that the internal space is formed.

The second half of the base frame 500 is fastened to the rear frame 300, and the first and second left and right surfaces of the base frame 500 are formed to be fastened to the left and right surface parts 260 and 280. In addition, the front surface of the base frame 500 is formed to be located below the lower end of the front door 400.

The front surface of the base frame 500 is opened so that the front suction hole 520 is molded, and through the front suction hole 520, the outer case 100 in front of the outer case 100, that is, for air conditioning. The front air is sucked into the inside of the outer case 100.

A lower surface filter unit 540 is provided in the inner space of the base frame 500. The bottom filter unit 540 is equipped with a plurality of filters to filter the air of the space for air conditioning suctioned through the front suction port 520 a plurality of times.

A lower surface prefilter 542 is mounted at a lower end of the lower surface filter 540. The lower surface prefilter 542 is included in the air when the front air of the outer case 100 is sucked into the inside of the outer case 100 by filtering a relatively large dust and foreign matter sucked into the inside of the outer case 100 To prevent inhalation.

The HEPA filter 544 is installed above the lower surface prefilter 542 to filter relatively fine dust and foreign matter not filtered by the lower surface prefilter 542, and the HEPA filter 544 above the lower prefilter 542. The nano filter 546 is installed to filter the fine bacteria and odor particles contained in the air of the space for the air conditioning that is filtered through the dust and foreign matter is filtered through the 544.

As such, the lower surface filter unit 540 is formed of the lower surface prefilter 542, the hepa filter 544, and the nanofilter 546, and a plurality of times the air in the space for air conditioning sucked into the outer case 100 is provided. Will be filtered.

Therefore, a front suction hole 520 is formed below the lower end of the front door 400 to pass the air in front of the outer case 100 into the outer case 100, and the front suction hole 520 is formed. The air in the space for air conditioning to be sucked through is included in the air being filtered and sucked while passing through a plurality of filters mounted inside the outer case 100, and the foreign matter or dust sucked into the outer case 100. Etc. are removed.

4 is a perspective view showing an open state of the front door 400 of the indoor unit of the air conditioner employing a preferred embodiment according to the present invention. As shown in the figure, the rear door of the front door 400 is provided with a door frame 460 for supporting the front door 400. The door frame 460 is formed in the shape of a grate, and the upper half center portion is perforated. The upper half of the door frame 460 is formed by the central portion of the upper portion to secure a space for mounting the operation unit rear cover 426 in which a plurality of parts forming the operation unit 420 are embedded.

The door frame 460 is formed in the shape of a grate to support the front door 400, and is provided with fastening means for fastening with the front cover 440 on the right and left sides of the upper side and the central portion as seen in FIG. . The fastening means is formed of a permanent magnet 462 having a magnetic material and a metallic material 444, the permanent magnet 462 is provided in the door frame 460, the metallic material 444 is mounted to the front cover 440 The front door 400 is fastened to the front cover 440 when the front door 400 shields the front surface of the outer case 100.

In the center of the front cover 440, that is, the position corresponding to the operation unit rear cover 426, a cover seating groove 442 is formed recessed to the rear to accommodate the operation unit rear cover 426 is formed.

In other words, the upper surface of the front frame 200, the right side of the top discharge port 240 is provided with a hinge that is engaged with the front door 400, the front door 400 is hinged with the top surface of the front frame 200 As fastened to be rotatably mounted to selectively shield the front of the outer case (100).

On the other hand, the gas detection means 600 is mounted to the central portion of the door frame 460. The gas detecting means 600 is the left surface portion 260 and the right surface portion 280 and the front suction hole 520 by the suction force generated inside the outer case 100 due to the rotational movement of the blowing fan 342. The air pollution is measured by detecting the air in the space for air conditioning that is sucked through and flows inside the outer case 100.

That is, by detecting the air in the space for air conditioning sucked into the inside of the outer case 100 to sense the air freshness of the space for air conditioning.

FIG. 5 is a perspective view showing a gas detecting means 600 which is a main component of an indoor unit of an air conditioner employing a preferred embodiment of the present invention, and FIG. 6 is an air conditioner employing a preferred embodiment of the present invention. An exploded perspective view showing a gas detecting means which is a main component of the indoor unit is shown.

Looking at the gas detection means in more detail as shown in these figures, the gas detection means 600 is mounted to the central portion of the door frame 460. The gas detecting means 600 is a sensor unit 620 for detecting the air cleanliness of the space for air conditioning flows inside the outer case 100, and the sensor unit 620 is seated, the rear surface is the A sensor seat 640 mounted on the door frame 460 and a seat cover 660 which covers the front surface of the sensor seat 640 and protects the sensor 620.

The gas sensor detects air cleanliness that cannot be distinguished by human sense organs by using physical and chemical properties of the material. Since the principle of such a gas sensor is generally widely used technology, it will be omitted in the detailed description of the present invention.

The sensor unit 620 is provided with a sensor 622 for detecting the degree of contamination of the air flowing inside the outer case 100, the sensor substrate 624 is equipped with such a sensor 622 is provided. The sensor substrate 624 is formed in a substantially rectangular plate shape, and the rear surface of the sensor 622 is mounted on the front surface of the sensor substrate 624. The other side of the front surface of the sensor substrate 624 on which the sensor 622 is mounted is provided with an electrical component 626 on which a plurality of electronic components required for the operation of the sensor 622 are mounted.

The sensor substrate 624 on which the sensor 622 and the electric component 626 are mounted is mounted on the sensor seat 640. The sensor seat 640 is shaped into a rectangular box with an open front surface, and is shaped into a long rectangular parallelepiped shape. A plurality of fixing protrusions 642 are provided in the inner space of the sensor seat 640 to mount the sensor substrate 624.

On the left and right sides of the sensor seat 640, the hook hanger 644 to which the seat cover 660 is fastened protrudes outward, and then is bent forward and molded. The hook hook 644 is formed in a ring shape is formed in a substantially "┓" shape when viewed from above, the hook hook 644 is a hook protrusion 666 protruded to the outer surface of the seat cover 660 And the seating part cover 660 is fastened to the sensor seating part 640.

The seat cover 660 is shaped into a rectangular box shape with a rear opening, and the front surface is rounded forward to form a beautiful appearance. The seat cover 660 is formed in a grill shape by cutting a plurality of ventilation holes 662 in the horizontal direction so that the air flowing in the outer case 100 passes.

A fixing part 664 protruding downward is formed on the bottom surface of the seating part cover 660. The central portion of the fixing part 664 is formed to be perforated to allow the screw (Screw) to be fastened so that the seat cover 660 is mounted to be fixed to the rear of the door frame 460. The rear end of the fixing part 664 is formed while contacting the front end of the seat cover 660, the screw is fastened to the door frame 460 as the screw penetrates the fixing part 664, the seating part The cover 660 is fixed.

When the seat cover 660 is fixed to the door frame 460, the sensor seat 640 coupled to the seat cover 660 by a hook is also fixedly mounted to the door frame 460. Hook protrusions 666 protrude from both sides to the left and right sides of the seating part cover 660 to be fastened in this way.

That is, the hook protrusion 666 formed on the right side of the seat cover 660 protrudes to the right side, and the hook protrusion 666 formed on the left side protrudes to the left side. The hook protrusion 666 protruding outwardly is fastened while being caught by the hook hook 644 formed on the sensor seat 640.

In other words, the rear end of the left side of the seat cover 660 and the front end of the left side of the sensor seat 640 are in contact with each other. In this case, the hook protrusion 666 is fitted to the hook hook 644. The hook protrusion 666 is forcibly fitted to the hook hook 644. In addition, the right side rear end portion of the seating portion cover 660 and the right side front end portion of the sensor seating portion 640 are in contact with each other, and the hook protrusion 666 is fitted to the hook hook 644 while the hook protrusion ( 666 is forcibly fitted to the hook hook 644.

On the other hand, the upper surface of the sensor seating portion 640 and the seat cover 660, the power inlet (646, 668) that is connected to the external power applied to the sensor 620 is protruded upward. In more detail, the seating part power inlet 646 protruding upward from the upper surface of the sensor seating portion 640 is formed in a semi-cylindrical shape in which the front surface is rounded forward, and is seated on the seating cover 660. The cover power supply opening 668 protruding upward is formed in a semi-cylindrical shape in which the rear surface is rounded rearward.

The power injection holes 646 and 668 formed as described above are formed in a cylindrical shape in which an upper end of the upper surface of the sensor seating portion 640 and a rear end of the upper surface of the seating cover 660 are engaged with each other to form an inner space. . The power line penetrates into the internal spaces of the power inlets 646 and 668 to supply power to the sensor unit 620.

Hereinafter, the operation of the indoor unit of the air conditioner configured as described above will be described.

First, the user applies an external power source to the air conditioner by using the operation button 424 provided on the front door 400 in order to use the air conditioner. When external power is applied to the air conditioner, power is applied to a plurality of electronic components provided in the outer case 100.

At this time, external power is applied to the fan motor provided inside the outer case 100, and the fan motor to which the external power is applied generates rotational power, and the blowing fan 342 is driven by the rotational power. ) Will rotate.

When the blowing fan 342 rotates, a suction force is generated inside the outer case 100, and the air in the space for air conditioning is caused by the suction force to the left side portion 260 and the right side portion 280. And through the front suction port 520 are sucked into the outer case 100.

Air in the space for air conditioning sucked into the outer case 100 is filtered by a plurality of filters provided inside the outer case 100 so that only clean air is sucked forward of the blower fan 342. Flow upwards. Air in the space for air conditioning flowing upward by the rotational movement of the blowing fan 342 passes through the indoor heat exchanger 320.

The air in the space for air conditioning that passes through the indoor heat exchanger 320 exchanges heat with a refrigerant that is a working fluid flowing inside the indoor heat exchanger 320 while passing through the indoor heat exchanger 320. The air heat-exchanged while passing through the indoor heat exchanger 320 is discharged into the space for air conditioning through the side discharge port 220 and the top discharge port 240 provided in the front frame 200.

The air discharged through the side discharge port 220 controls the discharge direction according to the user's selection by the discharge vane.

On the other hand, the air of the space for the air conditioning to be sucked into the interior of the outer case 100 by the suction force generated by the rotational movement of the blowing fan 342 is a gas detection means mounted to the rear of the front door 400 The air cleanliness is sensed by the sensor unit 620 provided inside the 600.

In addition, when the user operates the air conditioner by operating the operation button 424 provided in the center of the front upper half of the front door 400, the display window 422 has an operating state or air conditioning for the air conditioner. The air pollution level of the space and the current surroundings are displayed.

When the air pollution degree of the space for air conditioning is detected by the gas detecting means 600, the operation mode of the air conditioner is changed according to the air pollution degree so that the user wants the air in the space for air conditioning in a short time. Is optimized.

That is, if the air pollution degree of the space for air conditioning is detected by the gas detecting means 600 is severe, the air conditioner is full operation to harmonize the air of the space for air conditioning in the shortest possible time of the space for air conditioning The air is harmonized with clean air.

On the contrary, if it is detected by the gas detecting means 600 that the air pollution degree of the space for air conditioning is not severe, the air conditioner is operated in an appropriate state to match the air of the space for air conditioning.

The scope of the present invention 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, in the embodiment of the present invention, the sensor seat and the seat cover is formed to be hooked, of course, it is also possible that a screw or other coupling means may be employed.

In the indoor unit of the air conditioner according to the present invention configured as described in detail above, the gas detecting means is provided on the rear surface of the front door.

By such a gas detecting means there is an effect that can accurately detect the degree of contamination of the air flowing inside the outer case.

By accurately detecting the pollution of the air flowing inside the outer case by the sensing means, it is possible to detect the air pollution of the space for air conditioning.

By detecting the air pollution level of the space for air conditioning, the air can be harmonized according to the pollution degree.

Since the air can be harmonized according to the pollution degree of the air in the space for air conditioning, the efficiency of air conditioning is improved, and the efficiency of energy use is also improved as the efficiency of the air conditioning is improved.

In addition, as the air conditioner can be used to perform the role of the air purifier, there is an effect that can solve the user's emotional complaints because the demand of the air cleaner does not occur separately.

And, as the efficiency of energy use is improved, there is an effect of reducing the maintenance cost according to the use of the air conditioner.

Claims (6)

The outer case and the inner space is formed while forming the exterior, A front door for selectively shielding the front surface of the outer case; A door frame supporting the front door while forming a rear surface of the front door; The indoor unit of the air conditioner is provided on the rear of the door frame comprises a gas detection means for detecting the cleanliness of the air flowing in the outer case. The gas detection means of claim 1, A sensor unit for detecting the cleanliness of air flowing inside the outer case; A sensor seating part on which the sensor part is seated; An indoor unit of an air conditioner, comprising a seat cover covering a front surface of the sensor seat. The indoor unit of an air conditioner according to claim 2, wherein the seat cover has a vent formed therein. The indoor unit of an air conditioner according to claim 2, wherein the sensor seat is mounted on a rear surface of the door frame. The indoor unit of an air conditioner according to claim 3, wherein a power supply opening is formed on an upper surface of the seat cover and an upper surface of the sensor seat. The indoor unit of an air conditioner according to claim 3, wherein the sensor seat and the seat cover are hooked.

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