KR20070107402A - Indoor unit for air conditioner - Google Patents

Abstract

An indoor unit for an air conditioner is provided to attenuate operation noise of the indoor unit without generating dew on the surface of a panel by having an elastic guide for mounting a connection flange between the pipe connection and the panel. An indoor unit for an air conditioner is contoured by a plurality of panels and capable of controlling indoor air by heat exchange between refrigerant from an indoor heat exchanger(150) and the air. The indoor unit comprises a pipe connection(300), a connection member(F), and a guide(360). The pipe connection is disposed between a refrigerant pipe(310) which guides refrigerant flow on a side of the panel and the indoor heat exchanger, allowing communication between them. The connection member secures the pipe connection on the panel, having a connection flange(340) projected perpendicularly to the longitudinal direction of the pipe connection. The guide is provided between the pipe connection and the panel to allow the pipe connection to be fixed apart from the panel.

Description

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

1 is a schematic view showing a state in which the indoor unit of the ceiling duct type air conditioner is mounted.

Figure 2 is a longitudinal sectional view schematically showing a state in which the end of the refrigerant pipe and the indoor heat exchanger is coupled by a pipe connector in the indoor unit of the air conditioner according to the prior art.

Figure 3 is a bottom perspective view showing the external configuration of the air conditioner indoor unit according to the present invention.

Figure 4 is an exploded perspective view showing the internal configuration of the indoor unit of the air conditioner according to the present invention.

5 is a longitudinal sectional view schematically showing a state in which an end portion of a refrigerant pipe and an indoor heat exchanger are coupled by a pipe connector in an indoor unit of an air conditioner according to the present invention;

Figure 6 is a perspective view showing the appearance of the guide that is the main configuration of the indoor unit of the air conditioner according to the present invention.

Explanation of symbols on the main parts of the drawings

100. Indoor unit 100 '. Mounting Bracket

110. Filter assembly 112. Filter

114. Filter Frame 120. Barrier

130. Blower 150. Indoor heat exchanger

160. Insulation member 162. Ablation

164. Insulation sheet 170. Drain pan

172. Jammed Boss 200. Panel

210. Side panel 212. Right panel

212 '. Piping insert 214. Left panel

216. Insertion part cover 220. Top panel

222. Flange 240. Front panel

242. Intake port 244. Fastening hole

260. Rear panel 262. Outlet

264. Fasteners 280. Bottom panel

282. Bottom front panel 284. Bottom rear panel

286. Flange 288. Insertion hole

290. Duct mounting panel 300. Piping connector

310. Refrigerant pipe 320. Insulation tube

340. Combined flange 360. Guide

362. Seating grooves 364. Through holes

366. Fasteners F. Coupling member

The present invention relates to an indoor unit of an air conditioner, and more particularly, to a coupling flange formed in a pipe connector connecting a refrigerant pipe and an indoor heat exchanger, and using the coupling member, a pipe connector of the air conditioner configured to be coupled to a panel. It is about an indoor unit.

In general, an air conditioner is a cooling / heating device installed in an indoor space, such as an office or a home, to cool or heat a room. The air conditioner includes a compressor, a condenser, an expansion valve, and an evaporator.

In particular, an air conditioner is an outdoor unit (sometimes called an 'outdoor' or a 'heat sink') mainly installed outdoors, and an indoor unit (also called an '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).

As is well known, an air conditioner may be broadly divided into a separate type air conditioner in which the outdoor unit and the indoor unit are separately installed, and an integrated air conditioner in which the outdoor unit and the indoor unit are integrally installed.

The indoor unit of the separate type air conditioner is divided into a frame type, a wall type, a stand type, a ceiling duct type, and the like according to the installed position or shape, and the various indoor units are connected to an outdoor unit (not shown) by a refrigerant pipe (not shown). As a result, the refrigerant cycle can be achieved.

As shown in Figure 1, the indoor unit of the general air conditioner (hereinafter referred to as 'indoor') has a plurality of panels 10 are coupled to each other to have an approximately rectangular parallelepiped, and fixedly installed above the ceiling (W) of the room It is configured to harmonize the indoor air.

In addition, the indoor unit 1 forces the indoor air to flow from right to left and harmonizes the indoor air by allowing the air to heat exchange through an indoor heat exchanger (16 of FIG. 2) provided therein.

That is, the right side of the indoor unit 1 is provided with an inlet 12 through which air is sucked, and the left side of the indoor unit 1 discharges the indoor air heat-exchanged with the refrigerant passing through the indoor heat exchanger 16 to the outside of the indoor unit 1. A perforated outlet 14 is provided so that it can be made.

Accordingly, the suction duct S is connected to the suction port 12, and the right end of the suction duct S passes through the ceiling W to communicate with the room. In addition, a discharge duct B is connected to the discharge port 14, and the left end of the discharge duct B passes through the ceiling W like the suction duct S and communicates with the room.

That is, indoor air is introduced into the indoor unit 1 through the suction duct S, and the introduced indoor air is discharged back into the room through the discharge duct B after being heat-exchanged in the indoor unit 1. Will be able to harmonize.

On the other hand, the indoor unit 1 is connected by the outdoor unit (not shown) and the refrigerant pipe (reference numeral 20 of FIG. 2) to enable the cycle of the refrigerant. That is, the indoor heat exchanger 16 communicates with a compressor (not shown) provided in the outdoor unit, and the refrigerant heat exchanged in the indoor heat exchanger 16 may flow to the compressor.

Therefore, the pipe connector 30 is provided at an end (see FIG. 2) of the indoor heat exchanger 16 so that the refrigerant pipe 20 and the indoor heat exchanger 16 communicate with each other. The pipe connector 30 is formed as a hollow circular tube, the left outer peripheral surface is coupled to the refrigerant pipe 20 and the left end of the indoor heat exchanger 16 by the heat insulating tube 40 provided on the right outer peripheral surface Are combined.

At this time, the heat insulating tube 40 passes through the panel to wrap the right portion of the pipe connector 30 to block heat exchange between the cool refrigerant flowing through the pipe connector 30 and air.

In addition, a heat insulating member 50 is attached to the left side of the panel 10 to block the air inside the indoor unit 1 from being exchanged with outside air.

In addition, a pipe insulation 60 is wound on the outside of the pipe connector 30 so as to minimize the temperature change of the refrigerant when the indoor unit 1 is installed on the ceiling.

However, the indoor unit of the air conditioner according to the prior art having the above configuration has the following problems.

That is, the indoor heat exchanger 16 and the compressor (not shown) communicate with each other by the refrigerant pipe 20 and are coupled to each other by the pipe connector 30. In addition, the pipe connector 30 penetrates in a state not fixed to the panel 10 as shown in FIG. 2 to generate flow.

Therefore, the ends of the piping connector 30, the refrigerant pipe 20 and the indoor heat exchanger 16 has a weak structure, there is a problem that the damage occurs.

In addition, there is a problem in that the installation is deteriorated because the number of operations for connecting the end of the refrigerant pipe 20 and the indoor heat exchanger (16).

In addition, when service is required for the indoor unit 1, serviceability is also lowered, which is not preferable.

Therefore, an object of the present invention is to solve the problems of the prior art as described above, by forming a coupling flange on one side of the pipe connector, the pipe connector is configured to be fixed to the panel by the coupling member to fasten the pipe connector more firmly Of course, to provide an indoor unit of the air conditioner with improved serviceability.

Another object of the present invention is to provide an indoor unit of an air conditioner to prevent the occurrence of dew on the outer surface of the panel by further providing a guide so that the coupling flange is seated between the pipe connector and the panel.

According to a feature of the present invention for achieving the object as described above, the present invention, the exterior unit is formed by the combination of a plurality of panels, the indoor unit of the air conditioner to match the indoor air by heat exchange of the refrigerant and air through the indoor heat exchanger In the panel, one side of the panel is provided between the refrigerant pipe for guiding the refrigerant flow and the indoor heat exchanger is provided with a pipe connector for communicating the refrigerant pipe and the indoor heat exchanger with each other, the pipe connector is connected to the panel by a coupling member Characterized in that it is fixed.

One side of the pipe connector is characterized in that the coupling flange for protruding in the direction orthogonal to the longitudinal direction of the pipe connector so that the pipe connector is fixed to the panel.

Between the pipe connector and the panel, a guide tool for fixing the pipe connector is spaced apart from the panel is characterized in that it is provided.

One side of the guide, recessed from the front to the rear is characterized in that it is provided with a seating groove into which the coupling flange is seated, a through hole drilled to insert one side of the pipe connector, and a fastening hole drilled to insert the coupling member. .

The seating groove and the coupling flange is formed in a shape corresponding to each other.

The guide is characterized in that it is formed of an elastic member.

Between the guide and the panel is characterized in that the insulating sheet is provided to block the heat exchange of the panel and the outside air.

According to the indoor unit of the air conditioner according to the present invention having such a configuration, the indoor unit can be easily installed, and the indoor heat exchanger is more firmly fixed, thereby preventing damage.

Hereinafter, the configuration of the indoor unit of the ceiling duct type air conditioner employing the embodiment of the present invention will be described in detail with reference to FIGS. 3 and 4.

Figure 3 is a bottom perspective view showing the external configuration of the air conditioner indoor unit according to the present invention, Figure 4 is an exploded perspective view showing the internal configuration of the air conditioner indoor unit according to the present invention.

As shown in these drawings, the indoor unit 100 of the air conditioner has an outer shape of a rectangular parallelepiped long left and right, and an installation bracket 100 'attached to the upper left and right sides and a wire having one end fixed to the ceiling of the building (not shown). ) To be suspended.

In the suspended state, the indoor air is sucked forward and the indoor air sucked inside is heat-exchanged and then discharged backward.

That is, the indoor unit 100 has a front opening and a rear opening to form a suction opening 242 and a discharge opening (262 of FIG. 4), and the suction opening 242 is connected to a suction duct (not shown) and the discharge opening 262. ) Is connected to the discharge duct (not shown), the indoor air can pass through the indoor unit (100).

The exterior of the indoor unit 100 is formed by the panel 200. In more detail, the panel 200 has a configuration including a side panel 210, an upper panel 220, a front panel 240, a rear panel 260 and a lower panel 280, and are coupled to each other to approximately The external appearance of a rectangular parallelepiped shape is comprised.

In addition, the suction duct (not shown) and the discharge duct (not shown) are disposed at one side of the front panel 240 and the rear panel 260, and more specifically, at the front of the suction port 242 and the rear of the discharge port 262. The interior of the duct mounting panel 290 is provided to be coupled in a state of communication.

The duct mounting panel 290 is fastened by a screw to be firmly attached to the front panel 240 and the rear panel 260, the front and rear protruding portion is the suction duct (not shown) and the discharge duct ( It is communicated with the suction duct and the discharge duct by being fixed with a screw in the state inserted into one end of the (not shown).

The side panel 210 has a rectangular plate shape and is configured to include a right panel 212 forming a right side of the indoor unit 100 and a left panel 214 forming an exterior of the left side. In addition, the installation bracket 100 ′ is installed at the upper and outer surfaces of the right panel 212 and the left panel 214 before and after.

The left panel 214 has a long rectangular shape back and forth, and the center portion of the right panel 212 is provided with a pipe inserting portion 212 ′ cut so that the pipe connector 300 to be described below is inserted.

Therefore, when the pipe connector 300 is inserted into the pipe insertion unit 212 ′ and exposed to the outside of the right panel 212, the pipe connector 300 and the refrigerant pipe (310 of FIG. 5) may be connected to each other.

In addition, an insertion part cover 216 is provided at a right side of the pipe insertion part 212 ′. The insert cover 216 is configured to shield the pipe inserting portion 212 ', and shields the entire pipe inserting portion 212' except for the pipe connector 300 protruding to the right side of the right panel 212. do.

The upper panel 220 is provided between an upper end of the side panel 210, that is, between an upper end of the right panel 212 and the left panel 214. The upper panel 220 has a long rectangular plate shape from side to side, and serves to shield the interior space of the indoor unit 100 from above.

In addition, the upper panel 220 is configured to be selectively removable in a state in which the indoor unit 100 is mounted on the ceiling. That is, the front and rear and the left and right ends of the upper panel 220 is provided with a flange 222 bent downward in a rectangular shape, the sides facing each flange 222 is the side panel 210 and In contact with the upper outer surface of the front panel 240 and the rear panel 260.

The front panel 240 is perforated in a rectangular shape to form a suction port 242, and forms the front appearance of the indoor unit (100).

Where the rear panel 260 is opposed to the rear panel 260 is provided. The rear panel 260 forms a rear appearance of the indoor unit 100, and a discharge hole 262 is formed by drilling a central portion such as the front panel 240.

Therefore, the indoor air introduced into the indoor unit 100 through the suction port 242 may be discharged to the discharge port 262 after heat exchange in the indoor unit 100.

The lower side of the indoor unit 100 is provided with a lower panel 280 to form a lower surface appearance. The lower panel 280 shields the lower surface of the indoor unit 100 so that the inside is not visible when looking up at the indoor unit 100 mounted on the ceiling, and is configured to be selectively separated when a failure of the indoor unit 100 occurs. do.

Therefore, the lower panel 280 is formed of a rectangular lower surface front panel 282, and the lower rear panel 284 of a size slightly larger than the lower front panel 282, the lower front panel 282 When the rear panel 284 is selectively separated from the indoor unit 100, the inside of the indoor unit 100 is exposed and service is possible.

In addition, the bottom panel 280 is also provided with a flange 286 bent upwards and backwards in the front and rear and left and right as well as the upper panel 220, the insertion hole 288 is formed in the flange 286.

Therefore, when the insertion hole 288 and the fastening holes 244 and 264 are fastened by screws, the lower panel 280 is constrained so as not to be separated to the lower side of the indoor unit 100.

On the other hand, the filter assembly 110 is provided on the front of the indoor unit (100). The filter assembly 110 is mounted to the front of the suction port 242 to filter foreign materials, and is formed to have a size corresponding to the suction port 242, and is coupled to the rear surface of the front panel 240 to restrict separation. .

The filter assembly 110 is a filter 112 for filtering only foreign matter contained in the indoor air through a plurality of vent holes (not shown) and the panel 200 in a state in which the filter 112 is supported. It is configured to include a filter frame 114 coupled to.

The filter 112 is generally formed in a net-like shape to filter foreign matters, and the filter 112 may maintain a flat shape by fixing corner portions by the filter frame 114.

The filter frame 114 is injection molded by melting the plastic, it is necessary to firmly support the filter 112, and should not be easily broken. Therefore, the filter frame 114 is preferably molded of engineering plastic.

In the center of the interior of the indoor unit 100, the barrier 120 for partitioning the interior space of the indoor unit 100 before and after is installed. The barrier 120 has a substantially rectangular plate shape and is formed in an outer size corresponding to the suction port 242.

Therefore, when the barrier 120 is mounted inside the indoor unit 100, the front space of the barrier 120 generates suction force, and the rear of the barrier 120 exchanges the sucked indoor air.

In addition, an air flow hole 122 is formed in the barrier 120 to allow air in front of the barrier 120 to flow backward. The air flow holes 122 are generally formed in plural so that the air in front of the indoor unit 100 can quickly flow to the rear.

The blower 130 is provided in front of the barrier 120. The blower 130 is a suction force is generated in the front space, that is, the front space inside the indoor unit 100 on the basis of the barrier 120, the indoor air is sucked into the indoor unit 100 to the barrier 120 Blowing backwards.

In order to perform such a role, the blower 130 generates a suction force from the left and right sides to the center part while rotating, and blows the blower fan 132 and the blower fan 132 in the outer circumferential direction. A housing 134 for guiding the direction, a motor 136 axially coupled to the blowing fan 132 and generating rotational power, and a motor bracket 138 for mounting the motor 136 inside the indoor unit 100. It is configured to include).

The blower fan 132 is also referred to as a multi-wing fan with a plurality of blades are formed at equal intervals on the outer circumferential surface, and discharges the air in the direction of the outer circumferential surface after suctioning the air through the left and right sides during rotation.

The blowing fan 132 is rotatably mounted in the housing 134. The housing 134 is formed such that the left / right side and the rear side are opened, and air is introduced into the left and right / open sides, and the introduced air is guided backward and blown. In addition, the opened rear side of the housing 134 is coupled to communicate with the air flow hole 122.

Therefore, when the blower fan 132 is rotated, suction air is generated to the left and right sides of the housing 134 to open the room air, and the indoor air introduced into the housing 134 is inside the blower fan 132. After being discharged to the outer circumferential surface via the air is guided to the inner circumferential surface of the housing 134 is blown to the rear of the air flow hole 122, that is, the rear space of the barrier 120.

The control box 140 is provided on the left side of the blower 130. The control box 140 is for controlling the operation of the indoor unit 100, has a rectangular parallelepiped shape, but is not shown, a plurality of electronic components are built therein.

On the other hand, the rear of the barrier 120 is provided with an indoor heat exchanger (150). The indoor heat exchanger (150) is for heat-exchanging the indoor air introduced into the indoor unit (100), and the temperature of the refrigerant flowing therein is transferred to the outer surface of the indoor heat exchanger (150) to exchange the indoor air. .

Therefore, the indoor heat exchanger 150 is mounted to be inclined so as to have a large contact area with the indoor air, and the elongated round tube is bent a plurality of times to have an approximately square plate shape.

And, the right end of the indoor heat exchanger 150 is provided with a pipe connector 300 which is a main component of the present invention. The piping connector 300 is connected to the refrigerant pipe 310 to enable the refrigerant circulation between the indoor heat exchanger 150 and the outdoor unit will be described in detail below.

On the left and right sides of the indoor heat exchanger 150, that is, the left panel 214 and the right panel 212 face each other, the heat insulating member 160 is provided upright. The heat insulating member 160 prevents the air heat exchanged by the indoor heat exchanger 150 from contacting the side panel 210, thereby preventing the heat exchange efficiency from being lowered.

In addition, the heat insulating member 160 may be provided with a cutout portion 162 having a shape corresponding to the pipe insertion portion 212 ′ so that the pipe connector 300 is exposed to the outside of the right panel 212.

The outer side of the heat insulating member 160, more specifically, the heat insulating sheet 164 is provided on the right side of the right panel 212. The insulating sheet 164 is to block the heat exchange between the right panel 212 and the outside air is preferably formed of a heat insulating material.

The drain pan 170 is provided below the indoor heat exchanger 150. The drain pan 170 is for collecting the condensate generated during operation of the indoor heat exchanger 150 when it flows down the outer surface. The drain pan 170 has a substantially rectangular plate shape and has an upper surface recessed downward.

In addition, the drain pan 170 is formed to have a size corresponding to the downward projection area of the indoor heat exchanger 150. This is to collect the condensate that falls without flowing along the outer surface of the indoor heat exchanger (150).

The drain pan 170 is inclined at an upper surface thereof. That is, the upper surface of the drain pan 170 is formed to be lowered toward the front. Therefore, the condensed water collected on the upper surface of the drain pan 170 can flow down to the tip portion and collect.

The first half of the upper surface of the drain pan 170 is provided with a plurality of foreign matter holding boss 172 long in the left and right directions. The foreign matter catching boss 172 has a semi-circular longitudinal section and is spaced apart at equal intervals. Therefore, the condensed water can be flowed to a portion where the foreign matter catching boss 172 is not formed, and the foreign matter catching boss 172 interferes with the foreign matter and filters it.

On the other hand, the drain pan 170 is formed of a member having a heat insulating function. That is, the condensed water dropped in the indoor heat exchanger 150 has a low water temperature, so that dew condensation does not occur on the outer surface of the drain pan 170 when the cold condensed water contacts the drain pan 170. to be.

Therefore, it is preferable that the drain pan 170 is molded from expanded polystyrene (EPS) having a light weight and excellent heat insulation.

Hereinafter, the configuration of the piping connector 300 which is the main component of the present invention will be described in detail with reference to FIGS. 5 and 6.

FIG. 5 is a longitudinal sectional view schematically showing a state in which an end portion of a refrigerant pipe and an indoor heat exchanger are coupled by a pipe connector in an indoor air conditioner indoor unit according to the present invention, and FIG. 6 is an indoor air conditioner indoor unit according to the present invention. The perspective view which shows the external appearance of the guide which is a main component of is shown.

As shown in these figures, the pipe connector 300 is formed as a hollow circular pipe inside, the left / right side of the refrigerant pipe 310 and the end of the indoor heat exchanger 150 is coupled to the refrigerant pipe ( 310 and the indoor heat exchanger 150 is in communication with each other.

That is, the refrigerant pipe 310 is coupled to the left outer circumferential surface of the pipe connector 300 to communicate with each other, and the indoor heat exchanger 150 is connected to the right end. Therefore, the right outer peripheral surface of the pipe connector 300 is provided with a heat insulating tube 320 so that the pipe connector 300 and the indoor heat exchanger 150 can communicate with each other.

In more detail, the inner diameter of the insulation tube 320 corresponds to the inner diameter of the end of the indoor heat exchanger 150 and the outer diameter of the right end of the pipe connector 300, as shown in FIG. 5 inside the insulation tube 320. The ends of the pipe connector 300 and the indoor heat exchanger 150 are inserted in a force fitting manner so that they can communicate with each other.

In addition, the heat insulating tube 320 is preferably formed of a member having a heat insulating function so that the refrigerant flowing in the indoor heat exchanger 150 does not exchange with the outside air.

The pipe connector 300 is coupled to the right panel 212 by a coupling member (F) such as a screw. To this end, a coupling flange 340 is formed at an approximately central portion of the pipe connector 300 to protrude in an outer circumferential direction of the pipe connector 300, more precisely in a direction orthogonal to the length direction of the pipe connector 300.

As shown in FIG. 3, the coupling flange 340 has a rhombus shape that is slightly longer than the horizontal length, and holes 342 are formed through the upper and lower portions thereof. Therefore, when the right end of the coupling member F inserted into the hole 342 is fastened to the right panel 212, the pipe connector 300 is not separated from the right panel 212.

Of course, the coupling member F inserted into the lower hole 342 is fastened to the insertion part cover 216, and the insertion part cover 216 is coupled to the right panel 212. The bottom of) is also constrained by flow.

On the other hand, the coupling flange 340 is fixed to the spaced apart from the right panel 212 by the guide (360). That is, between the coupling flange 340 and the right panel 212, a guide hole 360 of a slightly larger shape than the coupling flange 340 is further provided.

Inside the front of the guide (360) is recessed to a size corresponding to the outer shape of the coupling flange 340 is formed with a seating groove 362 on which the coupling flange 340 is seated. Therefore, when the coupling flange 340 is inserted into the seating groove 362, the coupling flange 340 is placed on the same plane as the left side of the guide hole 360 is seated.

A through hole 364 is drilled in the center of the seating groove 362. The through hole 364 is configured to guide the right end of the coupling flange 340 (as shown in FIG. 5) to penetrate the guide hole 360, and has an inner diameter corresponding to the outer diameter of the coupling flange 340. Have

Fastening holes 366 are formed in the left and right sides (see FIG. 6) of the through holes 364. The fastening hole 366 is to prevent the coupling member (F) inserted into the hole does not interfere, and forms a concentric circle with the hole 342.

Accordingly, when the coupling member 340 is inserted into the hole in the state in which the coupling flange 340 is inserted into the seating groove 362, the coupling member F does not interfere with the fastening hole 366 and the right panel is not. And can be combined with 212.

In addition, the guide hole 360 is preferably formed of an elastic member having elastic force so that a large fastening force can be generated when the pipe connector 300 and the right panel 212 are coupled to each other.

As described above, the insulating sheet 164 is provided between the guide port 360 and the right panel 212, and the refrigerant passing through the pipe connector 300 is also outside the pipe connector 300. Obviously, the tube insulation 370 to be insulated from heat exchange should be provided.

Hereinafter, the operation of the indoor unit having the configuration as described above will be described with reference to the drawings.

First, when the power is applied to the indoor unit 100 assembled as shown in FIG. 3, the blower 130 operates to generate suction power. More specifically, the blowing fan 132 is rotated to generate a suction force from the left and right side to the center direction, the suction force is transmitted to the left and right sides of the housing 134, the suction port 242 and the suction duct (S). It will inhale the indoor air.

The sucked indoor air is guided into the indoor unit 100 after the foreign matter is filtered by the filter 112. The indoor air passing through the filter 112 is introduced into the blower fan 132 through the left and right sides of the housing 134 and then flows in the direction of the outer circumferential surface.

At this time, the inner circumferential surface of the housing 134 guides the indoor air to the rear, so that the indoor air passes through the air flow hole 122 communicating with the rear end of the housing 134. The indoor air passing through the air flow hole 122 is in contact with the outer surface of the indoor heat exchanger 150 is heat exchanged.

The air heat-exchanged by the indoor heat exchanger 150 is introduced again into the indoor space via the discharge port 262 and the discharge duct (not shown) in order to allow the indoor air to be cooled.

In this case, the condensed water generated during the heat exchange process of the indoor heat exchanger 150 is collected on the upper surface of the drain pan 170, and the condensed water that does not flow along the outer surface of the indoor heat exchanger 150 also drains the drain pan 170. Is collected on the top of the

Hereinafter, a process of connecting the refrigerant pipe 310 by the pipe connector 300 in the indoor unit having the above configuration will be described with reference to FIGS. 3 to 6.

First, assembling is completed in the state in which the indoor unit 100 is completely separated as shown in FIG. That is, the pipe connector 300 is coupled to the indoor heat exchanger 150 by the heat insulating tube 320, and the guide hole 360 is inserted between the pipe connector 300 and the right panel 212.

At this time, the coupling groove 340 is inserted and seated in the seating groove 362, and the center of the hole 342 and the fastening hole 366 is positioned in a straight line to form a concentric circle.

Thereafter, the coupling member F is inserted into the hole 342 and fastened to the right panel 212 and the insertion part cover 216. When the fastening of the coupling member (F) is completed, the pipe connector 300 is restrained by the right panel 212 is not separated and is in a state as shown in FIG.

In addition, after the refrigerant pipe 310 is coupled to the left outer circumferential surface of the pipe connector 300, the pipe insulation 370 is wound up, thereby completing the coupling between the refrigerant pipe 310 and the indoor heat exchanger 150.

The scope of the present invention is not limited to the above-exemplified 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, but the pipe connector is configured to protrude to the outside of the right panel, depending on the location of the indoor heat exchanger and the installation environment of the indoor unit can of course be projected in various directions.

In the indoor unit of the air conditioner according to the present invention as described above in detail, the coupling flange is formed in the pipe connector and the pipe connector is configured to be coupled to the panel using the coupling member.

Therefore, the shaking of the indoor heat exchanger and the refrigerant pipe coupled to the pipe connector is compensated for, thereby preventing the damage.

In addition, in the present invention, a guide formed of an elastic member is further provided to allow the coupling flange to be seated between the pipe connector and the panel.

Therefore, the dew generation of the outer surface of the panel is prevented and there is an advantage that the noise is significantly reduced when operating the indoor unit.

Claims (7)

In the indoor unit of the air conditioner is formed by the combination of a plurality of panels and the indoor air is harmonized by the heat exchange of the refrigerant and air through the indoor heat exchanger, One side of the panel is provided between the refrigerant pipe and the indoor heat exchanger to guide the refrigerant flow pipe connection is provided so that the refrigerant pipe and the indoor heat exchanger communicate with each other, The pipe connector is an indoor unit of the air conditioner, characterized in that fixed to the panel by a coupling member. The indoor unit of an air conditioner according to claim 1, wherein one side of the pipe connector is provided with a coupling flange which protrudes in a direction orthogonal to a longitudinal direction of the pipe connector to fix the pipe connector to the panel. According to claim 2, Between the pipe connector and the panel, Indoor unit of the air conditioner, characterized in that the guide is provided to be fixed to the pipe connector is spaced apart from the panel. According to claim 3, At one side of the guide, A recessed groove recessed from the front to the rear to seat the coupling flange, A through hole drilled to insert one side of the pipe connector; Indoor unit of the air conditioner, characterized in that the fastening hole is provided so that the coupling member is inserted. The indoor unit of an air conditioner according to claim 4, wherein the seating groove and the coupling flange are formed in a shape corresponding to each other. The indoor unit of an air conditioner according to claim 3 or 4, wherein the guide is formed of an elastic member. The indoor unit of an air conditioner according to claim 6, wherein an insulation sheet is provided between the guide and the panel to block heat exchange between the panel and the outside air.

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