MXPA06005830A - Indoor unit in air conditioner - Google Patents

Abstract

An indoor unit of an air conditioner is provided. The indoor unit has an improved airflow structure, for a rapid air conditioning of the room, a user's convenience, and an efficiency of the air conditioner.

Description

INTERIOR UNIT IN AN AIR CONDITIONER FIELD OF THE INVENTION The present invention relates to an indoor unit of an air conditioner and more particularly to an air conditioner having an improved suction and discharge method such that the indoor unit of the air conditioner can have an efficient internal structure.

BACKGROUND OF THE INVENTION The air conditioning system is an apparatus in which a refrigerant carries out a refrigeration cycle that includes compression, condensation, expansion and evaporation in order to control the temperature of a certain space according to the wishes of the user. When the air conditioning system is operated to lower the temperature of a certain space, the air conditioning system is used as a cooling system. On the other hand, when the air conditioning system is operated to increase the temperature of a certain space, the air conditioning system is used as a heat conditioning system that includes an indoor unit and an external unit. The inner unit is located in the space occupied by man to supply a cold air to it, and the external unit is located in the outer part of the space occupied by the human being to release the heat. In addition, the indoor unit includes a heat exchanger that extracts heat from the space occupied by the human being, a turbine ventilator that blows the air through the force to the heat exchanger to create a conductive heat transfer right there for a rapid supply of cold air in the space occupied by the human being. There are several types of internal units such as wall mounted, above floor, ceiling suspended and types inserted in the ceiling according to the installation method of the indoor unit. Typically, the wall mounted type indoor unit is fixed to a wall of a room, and includes a suction hole in the upper part and an air discharge hole in the lower part. However, it is not good for the user to use the indoor unit of type mounted on the typical wall having the aforementioned structure because the suction hole is formed in the upper part and the discharge hole is formed in the lower part . In detail, the problem is that the air conditioner does not act quickly for a complete internal space because the discharged air is blown only in a downward direction. In addition, an internal construction of the indoor unit is limited. For example, since a cross flow fan is installed in the indoor unit related to the technique, the flow rate is restricted and the indoor unit has a large size because the transverse flow fan occupies a large portion of the unit inside.

BRIEF DESCRIPTION OF THE INVENTION Technical Problem Accordingly, the present invention is directed to an indoor unit of an air conditioner that substantially obviates one or more of the problems due to limitations and disadvantages of the related art. An object of the present invention is to provide an indoor unit of an air conditioner having an improved internal structure to build the indoor unit more efficiently. Also, an object of the present invention is to provide an indoor unit of an air conditioner having an improved air suction and discharge method such that the indoor unit can be installed without limitation, thereby increasing the user's convenience. Furthermore, an object of the present invention is to provide an indoor unit of an air conditioner that is meticulously made for a simple and strong structure. In addition, the indoor unit may have a burst capacity larger than the same size of the indoor unit of the related art and therefore may have an improved efficiency.

In addition, an object of the present invention is to provide an indoor air conditioning unit that is designed to Increase the convenience of the user.

Technical Solution To achieve these and other advantages and in accordance with the purposes of the present invention, as exemplified and widely described, an indoor unit of an air conditioner is provided, comprising: a front frame to protect a front part of an interior of an internal unit; inclined surfaces of which both surfaces and / or the upper and lower surfaces are inclined at a predetermined angle; at least one suction hole formed on at least one of the inclined surfaces and at least one position of a middle portion; a rear cover including a filter insertion hole formed in the lower portion thereof; and a filter inserted into the filter insertion hole. In another aspect of the present invention, an indoor unit of an air conditioner is provided, comprising: a front frame to protect the front side; a back cover to protect a back side; a heat exchanger received in an internal space of the front frame and the rear cover, to perform the heat exchange; a turbine fan to blow the air through force; an air guide to guide a flow of air through the turbine fan; a filter provided on an inner surface of the back cover; a drain fan disposed in an internal portion of a lower side of the rear cover, for draining the condensed water from the heat exchanger; and a filter guide fixed to an inner surface of the back cover such that the filter is mounted in an exact position of the back cover. In a further aspect of the present invention, an indoor unit of an air conditioner is provided, comprising: a front frame to protect a front side; a rear cover for protecting a rear side, the rear cover having an outer circumference that includes a slanted portion that is internally inclined when it is directed to the rear side; a heat exchanger received in an interior space of the front frame and the rear cover, to carry out the heat exchange; a turbine fan to force air through the force; an air guide to guide an air flow through the turbine fan; and a filter inserted through a predetermined position of the back cover and mounted on an inner surface of the back cover.

Advantageous Effects An advantage of the present invention is that an indoor unit of an air conditioner has an improved structure for building the indoor unit more efficiently. Also, the indoor unit has an improved air suction and discharge method, such that the indoor unit can conveniently be mounted.

Furthermore, an advantage of the present invention is that the indoor unit has a large burst capacity compared to its size and thus has an increased efficiency. Also, the indoor unit is made to have a simple and strong structure and therefore increases the user's convenience.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated and constitute a part of this specification, illustrate the embodiments of the invention and together with the description serve to explain the principles of the invention. In the drawings: Figure 1 is a front perspective view schematically showing an indoor unit of an air conditioner according to the present invention. Figure 2 is a rear perspective view schematically showing an indoor unit of an air conditioner according to the present invention; Figure 3 is a front exploded perspective view showing the indoor unit of an air conditioner according to the present invention; Figure 4 is a rear exploded perspective view showing the indoor unit of an air conditioner according to the present invention; Figure 5 is a perspective view showing the passage of the air flow of an indoor unit of an air conditioner according to the present invention; Figure 6 is a perspective view showing another passage of the air discharge of an indoor unit of an air conditioner according to the present invention; Figure 7 is a perspective view showing another air suction passage of an indoor unit of an air conditioner according to the present invention; Figure 8 is a rear perspective view showing an installation structure of an indoor unit of an air conditioner according to the present invention; Figure 9 is a view showing a settling guide as shown in Figure 8 according to another embodiment of the present invention; Figure 10 is a perspective view of a receiver hook according to the present invention; Figure 11 is a view showing an installation structure for receiving the hooks according to the present invention; Figure 12 is a side view showing the air suction passage of an indoor unit according to the present invention; Figure 13 is a plan view showing a structure of the installation of an indoor unit according to the present invention; Figure 14 is a plan view showing another installation structure of an indoor unit according to the present invention; Figure 15 is a plan view showing another additional installation structure of an indoor unit according to the present invention; Figure 16 is a view showing a manner of forming a settlement guide according to another embodiment of the present invention; Figure 17 is a perspective view showing yet another embodiment of the installation structure of an indoor unit according to the present invention; Figure 18 is a rear perspective view showing an indoor unit according to the present invention; Figure 19 is a partial elongated view of "D" described in Figure 18; Figure 20 is a perspective view of a faceplate in accordance with the present invention; Figure 21 is a perspective view of a side plate according to the present invention; Figure 22 is a perspective view of a back plate according to the present invention; Figure 23 is a perspective view showing a connection of a front plate and a side plate according to the present invention; Figure 24 is a perspective view showing a connection of the faceplate, the side plate, and the back plate according to the present invention; Figure 25 is a perspective view showing a connection of a faceplate and an indoor unit according to the present invention; Figure 26 is a partial rear view of a faceplate to which a support protrusion is securely inserted; Figure 27 is a front perspective view of a back cover according to the present invention; Figure 28 is a rear perspective view of a back cover according to the present invention; Figure 29 is a section taken on line I-I 'of Figure 28; Figure 30 is a section taken on line ll-ll 'of the Figure 28; Figure 31 is a partial enlarged view of "A" described in Figure 27; Figure 32 is a perspective view of a filter according to the present invention; Figure 33 is a front perspective view of a back cover to which the filter is attached; Figure 34 is a perspective view of a filter guide according to the present invention; Figure 35 is a partial perspective view showing a lower portion of a back cover; Figure 36 is a section taken on the line III-I 'in Figure 35; Figure 37 is a section taken on line IV-IV in Figure 35; Figure 38 is a perspective view of a container for drainage according to the present invention; Figure 39 is a section taken on the line V-V in the Figure 38; Figure 40 is a section taken on line VI-VI 'in Figure 38; Figure 41 is a perspective view of a tube cover according to the present invention; Figure 42 is a front perspective view of a back cover to which the drain container and tube cover are coupled in accordance with the present invention; Figure 43 is a perspective view of a guide for air according to the present invention; Figure 44 is a rear perspective view of an air guide according to the present invention; Figure 45 is a perspective view of the heat exchanger according to the present invention; Figure 46 is a view showing a connection of a heat exchanger and an air guide according to the present invention; Figure 47 is a view showing a connection of a heat exchanger, an air guide, a drain container according to the present invention; Figure 48 is a partial elongated view of "B" described in Figure 47; Figure 49 is a perspective view showing an air guide according to another embodiment of the present invention; Figure 50 is a perspective view showing an air guide according to a further embodiment of the present invention; Figure 51 is a front perspective view of an indoor unit showing an opening / closing device according to the present invention; Figure 52 is a perspective view of an opening / closing device for opening and closing the discharge orifices according to the present invention; Figure 53 is a section taken on line VII-VII 'in Figure 52; Figure 54 is a front perspective view of a transfer part according to the present invention; Figure 55 is a rear perspective view of a transfer part according to the present invention; Figure 56 is a perspective view of a link according to the present invention; Figure 57 is a perspective view of a driven gear according to the present invention; Figure 58 is a perspective view of a driving gear according to the present invention; Figure 59 is a perspective view of a lower case according to the present invention; Figure 60 is a rear perspective view of a front frame to which the discharge door motor is coupled according to the present invention; Figures 61 and 62 are views showing an operation of the opening / closing device according to the present invention, wherein Figure 61 shows the transfer parts located in the external position and Figure 62 in the internal position; Figure 63 is a view showing an opening / closing device according to another embodiment of the present invention; Figure 64 is a view showing an opening / closing device according to a further embodiment of the present invention; Figure 65 is a view showing an operation of an opening / closing device according to the present invention; Figure 66 is a rear perspective view of a front panel according to the present invention; Figure 67 is a front perspective view of a front frame according to the present invention; Figure 68 is a rear perspective view of a front frame according to the present invention; Figure 69 is a partial elongated view of "C" described in Figure 68; Figure 70 is a rear perspective view of a front frame to which the engine is mounted in accordance with the present invention; and Figure 71 is a perspective view of an engine assembly according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION The present invention will apparently be understood from the following modalities. However, the present invention should not be constructed as being limited to the modalities set forth herein., and it will be understood by those skilled in the art that various changes in form and detail can be made here without departing from the spirit and scope of the present invention. Fig. 1 is a front perspective view schematically showing an indoor unit of an air conditioner according to the present invention and Fig. 2 is a rear perspective view schematically showing an indoor unit of an air conditioner according to the present invention. Referring to Figures 1 and 2, an indoor unit 1 of an air conditioner includes a front panel 100, a front frame 200, a back cover 600 and a tube cover 830. The front panel 100 is provided on the front of the indoor unit 1. Front frame 200 receives front plate 100 to thereby form a front cover and includes side discharge holes 220 on both sides. The rear cover 600 is coupled to the front frame 200 to protect the rear part of the indoor unit 1. The cover of the tube 830 is formed in the lower portion of the indoor unit 1 to receive the pipes coming from the outside of the unit inside.

The side discharge orifice 220 can be formed on one side or on each side of the front frame 200 to discharge a cooled air in the front side portion of the indoor unit 1. In detail, since each side of the front frame 200 it slopes outward from its front edge towards its rear part, the discharge of the air through the holes of the side discharge orifices 220 can extend over the entire interior space. In addition, since the lateral discharge ports 220 are formed on the sides of the internal unit 1, the entire front face of the indoor unit 1 is clearly covered by the front panel, whereby the indoor unit 1 can have a better appearance . The rear cover 600 includes a central portion raised outwardly, and sloping portions having inward slopes from the peripheral edges toward the raised central portion to meet the central portion. The rear cover 600 is provided with suction holes to suck air from outside. The suction holes include the central suction hole 620 formed in the raised central portion, an upper suction hole 610 formed in the sloping upper portion, and a filter insertion hole 630 formed in the sloping lower portion. Each of the suction ports 620 and 610 are formed with a grid having a plurality of bars, to somehow block the larger particles while sucking the air from outside. Since the outside air can be sucked through the filter insertion hole 630 and the filter insertion hole 630 is capable of sucking the external air, the suction holes of the present invention include the filter insertion hole 630. The front panel include a transparent window 111 in a portion determined to be observed within the indoor unit 1, and a display unit formed in the inner part of the indoor unit 1 be seen through the window 111 to see the operational state of the indoor unit 1. It is possible to provide the advantage 111 because the front panel 100 covers the longer portion of the front face of the indoor unit 1. This can be achieved due to the structure of the air flow, an aspect of the present invention, wherein the air is discharged on the front side side. The passage of the air flow inside the indoor unit will now be described with respect to the aforementioned structure of the indoor unit 1. The passage of the air flow of the indoor unit 1 is described as follows: the external air is sucked through of the suction holes 610 and 620 and the filter insertion hole 630, which are formed in predetermined portions in the rear cover 600; the sucked air goes through the heat exchanger installed inside the indoor unit, for a heat exchange; and the heat exchanger exchanges the air that is discharged through one or more discharge orifices formed in a predetermined portion of the front frame 200. Specifically, since the discharge orifices are formed in the front side portion on the inclined sides of the indoor unit 1, the discharged air can be spread over the entire internal space and in this way users can feel good quickly. Figure 3 is a front exploded perspective view showing an indoor unit of an air conditioner according to the present invention and Figure 4 is a rear exploded perspective view showing an indoor unit of an air conditioner according to the present invention. Referring to Figures 3 and 4, a complete structure of the air conditioner of the indoor unit 1 of the present invention is shown. The indoor unit 1 includes the front panel 100, the front frame 200, a turbine fan 800, an air guide 400, an heat exchanger 810 and the rear cover 600. The front panel 100 forms a front exterior of the indoor unit 1. The front frame 200 receives the front panel 100 to protect the front of the indoor unit 1. The turbine fan 800 is disposed behind the front frame 200 for sucking the external air. The guide air 400 is to be coupled with the turbine fan 800 to guide the sucked air due to the rotation of the turbine fan 800. The heat exchanger 810 is disposed behind the air guide 400 to lower the air temperature sucked through contact with sucked air. The rear cover 600 is disposed behind the heat exchanger 810 to be coupled with the front frame 200 to protect the rear part of the indoor unit 1.

The indoor unit 1 includes the front panel 100, the front frame 200, the turbine fan 800, the air guide 400, the heat exchanger 810, and a rear cover 600 which is assembled in this order. The indoor unit 1 further includes a drain container 820 and a tube cover 830. The drain container 820 is disposed below the heat exchanger 810 to drain the condensed water from the heat exchanger 810 and the tube cover 830 is provided. to protect a refrigerant pipe connected to the heat exchanger 810 and a condensed water drainage pipe. Further, the indoor unit 1 includes a lower discharge orifice door 470 which is disposed below the air guide 400. The lower discharge orifice door 470 determines the direction of the air flow to be discharged through the lower discharge port 210 and open and close the lower discharge port 210. The lower discharge port 210 allows air to be guided through a lower air guide 420 that is to be discharged to the underside of the indoor unit 1. An opening / closing device 300 is arranged between the front panel 100 and the front frame 200, for opening and closing the side discharge holes 220. Here, the opening / closing device is fixed to the front frame 200. A part 460 is provided in a superior location between the front frame 200 and the air guide 400, to control the operations of the electrical parts such as a motor. The wind direction alternators 430 are disposed on both sides of the air guide 400 to change the direction of the air flow through the side discharge ports 220. The wind direction alternators 430 include a safety shield 440 to not allow a user to insert their hand there. The safety shield 440 is provided to protect the hands of the user of the turbine fan in the case where the user inserts his hand into the wind direction alternator 430. An upper air guide 410 is provided in the upper position of the air guide 400 for guiding the blown air through the turbine fan 800 towards the side discharge orifices 220. The lower air guide 420 is provided in a position lower than the air guide 400, for guiding the blown air to through the turbine fan 800 towards the lower discharge orifice 210. The function and operation of each element of the present invention will now be described. The front panel 100 is fixed to the front face of the indoor unit 1, to form a front exterior of the indoor unit 1. The window 111 can be provided on a predetermined portion of the front panel 100 for observation in the deployment unit ( 240 in Figure 67) which displays the on / off state and / or the operational status of the indoor unit 1. The front panel 100 may include a certain material or a design, to have a good and beautiful exterior of the indoor unit 1 The front frame 200 includes front peripheral sides which are inclined at a predetermined angle, and the front panel 100 is fixed thereto. The side discharge orifices 220 and / or the bottom discharge orifice 210 can be formed on at least one side on the front peripheral sides of the front frame 200. The front panel 100 can be fixedly adhered to the front frame 200 or can be fixed while allowing movement in the left and right directions in order to form a discharge hole in the front of the indoor unit 1. A fan motor (280 in Figure 70), fixed to the rear face of the front face 200 drives the turbine fan 800, such that the internal air can be sucked into the indoor unit 1. The number of turbine fans 800 can be one or more according to the size and use of the indoor unit 1. A A turbine fan having a large capacity can be used for the turbine fan 800. The air guide 400 and the air to be sucked into the turbine fan 800 through a pilot orifice d e air 450, and the upper air guide 410 and the lower air guide 420 guide the sucked air towards the side discharge ports 220 and the lower discharge hole 210. The heat exchanger 810 includes a tube 811 which is ignited a number of times. The low temperature and the low pressure of the refrigerant pass an expansion valve that flows in the tube 811. Since the heat exchanger with a wide area has a good heat transfer operation, the heat exchanger 810 can have a shape rectangular flat or flexed at a predetermined angle. The drain container 820 is provided below the heat exchanger 810 to receive the condensed water dripping on the surface of the exchanger 810, thereby preventing the condensed water from dripping out of the indoor unit 1. The rear cover 600 is provided with suction holes in at least one portion, such as in the upper suction hole 610 in the upper portion and the central suction hole 620 in the central portion. In other words, the shape and number of suction holes, such as the upper suction hole 610 and the central suction hole 620, can be selected according to the shape and capacity of the indoor unit 1. Here, each one of the suction holes 610 and 620 includes a grid having repeatedly formed bars with a predetermined space between them, so that the particles included in the air can be mainly blocked. In addition, the back cover can be formed with a filter insertion hole 630 in a given portion, to insert a filter (refer to Figure 32) to filter out all impurities such as dust. Preferably, the filter is inserted between the rear cover 600 and the heat exchanger 810 in order to prevent the adhesion of impurities on the surface of the heat exchanger 810. The insertion hole of the filter 630 can function as a suction orifice of the filter. air. The peripheral sides of the rear cover 600 are formed with slopes at a predetermined angle and the upper suction hole 610 on this sloping side of the rear cover 600, so that the interior air can only be sucked. Specifically, in the case of the indoor unit it is installed near one corner of the wall, and the air suction can only be made. Figure 5 is a perspective view showing completely an air flow passage of an indoor unit of an air conditioner according to the present invention. Referring to Figure 5, the inner air is sucked through the upper suction hole 610 and / or the central suction hole 620 and / or the filter insertion hole 630 of the rear cover 600. The suctioned air exchanges with the the heat with the heat exchanger 810 and flows into the air guide hole 450 and flows to a suction side of the turbine fan 800. Here, the suction force of the turbine fan 800 motivates the air to flow upwards. The upper air guide 410 and the lower air guide 420 are functions for guiding the air that is discharged from the turbine fan 800 in a predetermined direction. In detail, the air guided by the upper air guide 410 is discharged through the side discharge orifice 220 and the air guided through the lower air guide 420 is discharged through the lower discharge orifice 210. Wind direction 430 guides the discharged air through the lateral discharge orifices 220 in such a way that the cooled air can be spread over the entire interior space. The orifice port of the lower unloader 470 can guide the discharged air through the lower discharge orifice 210.

Figure 6 is a perspective view showing another air discharge passage of an indoor unit of a shaping air conditioner with the present invention. Referring to Figure 6, the front frame 200 is provided with an upper discharge hole 211 at the top, so that the cooled air can be discharged through the upper discharge orifice 211. Here, in order to discharge the cooled air through the upper discharge hole 211, the structure and shape of the upper air guide 410 can be changed appropriately. In this case, since the pneumatic resistance can be reduced, the blowing efficiency can be increased. Figure 7 is a perspective view showing another air suction passage of an indoor unit of an air conditioner in accordance with the present invention. Referring to Figure 7, the rear cover 600 is provided with side suction holes 640. By forming the side suction holes 640, the pneumatic resistance can be reduced and thus the efficiency of the indoor unit 1 can be increased. Figure 8 is a rear perspective view showing an installation structure of an indoor unit of an air conditioner according to the present invention. Referring to Figure 8, to secure the indoor unit on the wall, the rear cover further includes a support panel 622 formed in the rear side portion thereof, with seating guides 650 formed in the upper and lower portions of the housing. same, and the holes 651 formed in the settlement guides in the up and down directions. The support panel 622 can be securely fixed to the rear cover 600 through the use of various methods such as screw coupling and adhesion. The settling guides 650 can be fixed to the support panel 622 through the use of various methods such as screw coupling and adhesion, or can be formed integrally with the support panel 633. Here, the shape of the guides of settlement 650 and hole number 651 is not limited to this embodiment and various shapes and numbers may be formed according to the shape and size of an indoor unit 1. The seating guides 650 may be fixed directly to the cover rear 600 or integrally formed to rear cover 600, without support panel 622 therebetween. In detail, the settling guides 650 may have an elongate cuboid shape and attached to the upper and lower portions of the support panel 622 as shown in Figure 8, and also the settling guides 650 may have a short cuboid shape and individually attached to the four corners of the support panel 622 as shown in Figure 9. In the case of seating guides 650 are formed as shown in Figure 9, and the space for air suction between the indoor unit 1 and the wall is lengthened, the pneumatic resistance of the air flow can be further reduced.

The shape of the holes 651 is not limited to this mode. Holes 651 may be formed in various shapes such as grooves and rectangles, provided bars can be inserted and supported through holes 651. Figure 10 is a perspective view of a receiver hook in accordance with the present invention and Figure 11 is a view showing an installation structure for receiving the hooks according to the present invention. Referring to Figures 10 and 11, the reception hooks 660 are coupled to a wall 840 using an adhesion type method. Receiving hook 660 includes a support 661 for securing the indoor unit 1 to the wall 840 while there is a space between the indoor unit 1 and the wall 840, the extension 62 extends forward from the support 661, and the protrusion 663 projects upwards through a predetermined length from extension 662. In detail, the outer diameter of the protrusion 663 is designed for an exact insertion in the hole 651. The shape of the protrusion 663 is not limited to a cylindrical shape as in this embodiment. The protrusion 663 can have various shapes as long as the protrusion 63 can be interconnected and closely coupled to the hole 651 without vibration. The support 661 has a certain thickness in order to make a space between the indoor unit 1 and the wall when the indoor unit 1 is coupled to the receiving hooks 660. The support 661 also has a surface area longer than a certain value in order to couple the receiver hooks 660 to the wall 840. In the case where there is sufficient coupling force, the surface area of the holder 661 may not be an important factor. The extension 662 extends outwardly from the support 661 and is formed with the protrusion 663 at the top thereof. The extension 662 allows the receiving hooks 660 as a whole to be spaced more than a predetermined distance from the wall 840, which provides a predetermined distance no greater between the indoor unit 1 and the wall 840 in such a way that the pneumatic resistance of the air sucked through the rear cover 600 can be reduced. Although the support 661, the extension 662, and the protrusion 663 can be formed in various shapes, they are preferably integrally formed using two or more members. The receiver hooks 660 can be configured in a rectangular shape wherein the receiver hooks 660 are disposed at the upper and lower locations of the wall 840 with spaces between them as shown in the drawing. The distance on the receiver hooks 660 can be determined according to the size of the indoor unit 1. Figure 12 is a side view showing the indoor unit coupled to the receiver hooks according to the present invention. Referring to Figure 12, since the indoor unit 1 is coupled to the wall 840 with predetermined distance spaces therebetween, such as a space along where the air to be sucked flows inside the indoor unit 1 they can be formed between the indoor unit 1 and the wall 840. The air introduced along the space can be sucked through the suction holes 610 and 620 of the rear cover 600. Meanwhile, even when there is a narrow space between the rear cover 600 and the wall 840, the upper suction hole 610 is not interfered with by the wall 840 and therefore the air can be gently sucked. The arrow in the drawing denotes the air sucked through the central suction hole 620. Figures 13 to 15 show the forms for mounting an indoor unit according to the embodiments of the present invention. Figure 13 is a plan view showing an indoor unit mounted on a flat wall; Figure 14 is a plan view showing an indoor unit mounted in a corner of a wall; and Figure 15 is a plan view showing an indoor unit mounted on a corner of a wall in accordance with another embodiment. According to the present invention, the indoor unit 1 can be mounted on a flat wall and also on a corner of a wall, without limitation due to the seating guides 650 and the receiving hooks 660. In addition, the front direction of the unit interior 1 can be freely adjusted according to the attachment locations of the reception hooks 660. Accordingly, the mounting position and the direction of the indoor unit 1 are freely adjusted without changing the flow passage of the air for gentle suction of the air, therefore increasing the user's convenience. Referring to Figure 13, the indoor unit 1 can be mounted on an ordinary flat wall and the receiver hooks 600 can be fixed in the appropriate places according to the thickness of the seating guides 650. Referring to Figure 14, the angles between the indoor unit 1 and the wall are different, one side has a mounting angle of 30 degrees and the other side has a mounting angle of 3 to 60 degrees. Preferably, this installation structure can be applied when the internal space has a rectangular shape such that air needs to be blown much more in one direction or when it is in an obstacle on one side of the interior space. Of course, it is apparent that the mounting locations of the receiver hooks 660 depend on the mounting angles. Referring to Figure 15, both mounting angles? e d between the indoor unit 1 and the wall are 45 degrees. Preferably, this installation structure can be applied when the interior space has a square shape in such a way that the air needs to be floated equally in the left and right directions. As provided herein, since the indoor unit 1 can be freely mounted on the wall without limitation of the mounting location, the interior space can be used more efficiently. Also, there is an advantage of securing the space between the indoor unit 1 to introduce that it is to be sucked. Figure 16 is a view showing a manner of forming a seating guide according to another embodiment of the present invention. Referring to Figure 16, the set-up guides 650 are not coupled to the support panel 622. Rather, the set-up guides are directly fixed on a central suction panel 625 formed with the central suction hole 620. In order to directly fixing the settling guides 650 to the central suction panel 621, the thickness of the central suction panel 621 is preferably kept thicker than a predetermined thickness at least in the portions in which the settling guide 650 is fixed, in such a way that the fixing of the settlement guides 650 can be assuredly maintained. Other features of the settlement guides 650 and the receiver hook 660 described above can be applied to this embodiment. The settling guides 650 are directly attached to the central suction panel 621, thereby reducing the cost and manufacturing process compared to the settling guides 650 which are fixed to the support panel 622. As described above, for the purpose of installing the indoor unit, the settling guides 650 formed in the rear part of the indoor unit 1 and the receiving hooks 660 installed on the wall 840 are coupled in an insertion form. Of course, there may be a number of embodiments for installing the indoor unit 1 on the wall 840. Hereinafter, other embodiments will be described with reference to the drawings. Figures 17 to 26 are views showing the installation structure of an indoor unit according to another embodiment of the present invention. Referring to Figure 17, the installation structure as a whole includes an indoor unit 1, a faceplate 680 coupled to the rear of the indoor unit 1, a back plate 690 directly coupled to the wall 840 and a side plate 685 that allows the faceplate coupled 680 and rear plate 690 keep the indoor unit 1 separated from the wall 840 at a predetermined angle between them. The side plate ends 685 are connected to the front plate 680 and the back plate 685 through a predetermined shape. Due to the aforementioned structure, the indoor unit 1 can be placed separately from the wall at a predetermined angle or more even when the indoor unit 1 is installed in a corner of the wall 840, such that the indoor unit 1 can blow the air to the entire area of the interior space more smoothly. In detail, when the indoor unit 1 is installed in the corner of the wall, the indoor unit 1 can be installed on the wall at a predetermined angle instead of a right angle, so that the air discharged from one side of the wall the indoor unit 1 can be gently blown into the interior space without interference from the wall. Figure 18 is a rear perspective view showing an indoor unit according to another embodiment of the present invention. Referring to Figure 18, the rear cover 600 is provided at the rear with support protrusions 670 projecting to a predetermined height to form four corners of the central suction panel 621, to mount the indoor unit 1 on the wall. The support protuberances 670 can be formed integrally with the central suction panel 621 or they can be formed separately with the central suction panel 621 and then fixed thereto. In addition, although the support protuberances 670 are formed on the support panel 622 which is additionally fixed to the central suction panel 621, the support protuberances 670 can perform the same function. Figure 19 is a partial elongated view of "D" described in Figure 18. Referring to Figure 19, each of the support protuberances 670 has a shape in a projected rectangle and are configured to include a coupling slot 672 and a raised portion 671. The coupling slot 72 is recessed in such a way that a coupling member for coupling the front panel 680 and the indoor unit 1 is inserted therein. The raised portion 671 is formed above the coupling groove 672 at a height equal to the thickness of the faceplate 680 such that the coupling member is more accurately coupled. When the coupling member is inserted into the faceplate 680 and the support protuberances 670, the raised portion 671 functions to fix the coupling member at the same height as the raised portion 671 with respect to the faceplate 680 and the protuberances. 670. The raised portion 671 enables the coupling member to be inserted exactly without any deviation when the coupling member is inserted into the coupling groove 672. Accordingly, since the coupling member can be inserted exactly in one Perpendicular direction, the coupling of the front panel 680 and the rear cover 600 can be reliably carried out. Figure 20 is a perspective view of a faceplate in accordance with the present invention, the Figure is a perspective view of a side plate according to the present invention, and Figure 22 is a perspective view of a back plate. according to the present invention. Referring to Figure 20, the front panel 680 is formed in a shape that improves strength and prevents interference. In detail, the front panel 680 includes the insertion holes of the support protrusion 681, first projections 683, and second projections 684 formed therein. The insertion holes of the support protrusions 681 in which the support protuberances 680 are inserted are formed in the four corners of the front panel 680, to fix the indoor unit 1. The first protrusions 683 to which the front hooks (686 in FIG. Figure 21) of the plate 685 are coupled are formed to fix the side plate 685 to the faceplate 680. The second projections 684 to which the hooks (691 in Figure 22) of the back plate 690 are coupled are formed to the rear plate 690 is fixed to the front plate 680. Furthermore, the front plate 680 can be formed with fixing holes to the wall 682 there, in such a way that the front plate 680 can be fixed directly to the wall without side plate 685 and the rear plate 690. In detail, the first projections 683 and the second projections 684 are formed through cutting and bending the predetermined portions of the front panel 680, and each projection includes two projected ribs. The number of the first and second projections 683 and 684 can be determined according to how many numbers are required to support the indoor unit 1 and in this embodiment, each of the projections 683 and 684 have three projections. The form, number, and manufacturing method for projections 683 and 684 is limited to this modality and therefore in its form, number, and manufacturing method can be changed in a variable manner without departing from the spirit and scope of the invention. present invention. Referring to Figure 21, the side plate 685 includes the front hooks 686 formed in the form of a projection on one side with a predetermined width and length to engage with the front plate 680, and the rear hooks 680 are formed as projections towards the other side, such that the side plate 685 can be fixed to the front plate 680 and the back plate 690. In addition, the side plate 685 includes a fixed part of the back plate 687 and a fixing hole of the back plate 688 which is shape on one side when the rear hooks 689 are formed, to securely fix the side plate 685 and the rear plate 690. In detail, the rear hooks 690 are provided to guide the side plate 685. The fixed part of the rear plate 687 is formed in the center of the other side of the plate. side plate 685, for securely securing the side plate 685 to the back plate 690 with a coupling member. Referring to Figure 22, the back plate 690 to be fixed to the wall includes side guides 694, a side plate fixing portion 692, a side plate fixing hole 693, and front hooks 691. side guides 694 are formed on one side of the rear plate 690 with a folded shape for guiding the rear hooks 689 of the side plate 685. The fixing portion of the side plate 692 and the fixing hole of the side plate 693 are aligned with the fixing part of the back plate 687 on the side plate 685, for fixing the side plate 685. The front hooks 691 are formed on the other side edge of the back plate 690, for engaging the front part 680. Figure 23 is a perspective view showing a connection of a front plate and a side plate according to the present invention.

Referring to Figure 23, the side plate 685 is coupled to the back of the faceplate 680. In detail, the front hooks 686 formed on one side of the side plate 685 are inserted into the first projections 683 formed in a side of the faceplate 680. In more detail, the side plate 685 or the faceplate 680 are exchanged in order to align the front hooks 686 and the first projections 683 and then the side plate 685 are pushed in the direction of the insertion the front hooks 686 and the first projections 683 in order to insert the front hooks 686 into the first projections 683. Meanwhile, although the first projections 683 are hooked through the front hooks 686 in one direction, the indoor unit 1 it is supported without problems due to a directional force of gravity. Merely, each of the first projections 683 has two or more ribs that are bent and spaced apart from each other, to prevent the indoor unit 1 from shaking to one when there is a small amount of impact. When the side plate 685 is inserted into the faceplate 680 according to the aforementioned shape, the side plate 685 and the faceplate 680 are placed at a predetermined angle therebetween. The predetermined angle between the two plates is the same as the angle between the front hooks 686 and the body of the side plate 685 and because of this, the front hooks 686 have a flat shape. After the faceplate 680 and the side plate 685 are assembled into a single assembly, a coupling step of the assembly and side plate 690 follows. Figure 24 shows the mating step. Referring to Figure 24, two ends of the two assembled plates 680 and 661 are placed at a predetermined angle apart, and the back plate 690 engages the two ends. In detail, the back hooks 689 of the side plate 685 are inserted and guided through the lateral guides 694 formed on one side of the back plate 690 and then the front hooks 691 of the back plate 690 are inserted in the second ones. projections 684 of the front plate 680. The coupling between the front hooks 691 of the rear plate 690 and the second projections 684 of the front plate 680 is the same shape as the coupling between the plate 685 and the front plate 680. In this form , the rear plate 690 is placed through the guides of the front plate 680 and the side plate 685. Furthermore, when the back plate 690 is guided and placed, the fixing part of the rear plate 687 and the fixing part of the side plate 692 are aligned and then a coupling member is inserted into the fixing hole of the rear plate 688 and the fixing hole of the side plate 693, such that the rear plate 690 is completely e coupled. The side plate 690 can be fixed to the wall using bolts or the like. In accordance with the previous steps the assembly of the plates 680, 685 and 690, the coupling structure is completed as shown in Figure 17.

Figure 25 is a perspective view showing a connection of a faceplate and an indoor unit according to the present invention and Figure 26 is a partial rear view of a faceplate to which the support protrusion is securely inserted. Referring to Figures 25 and 26, the coupling relationships between the indoor unit 1 and the faceplate 680 will be fully described. The support protuberances 670 formed on the back of the indoor unit 1 are aligned with the insertion holes of the support protuberances 681. The shape of the insertion holes of the support protuberances 681 includes a comparatively large circular hole in a upper part and in a rectangular hole on the lower side. The shape of the rectangular hole is the same as the shape of the support protuberances 670. Accordingly, when the support protuberances 670 are inserted, the support protuberances 670 are mainly inserted into the upper circular holes and secondarily, they are inserted in the lower rectangular holes, in such a way that the support protuberances 670 can be conveniently inserted inside the insertion holes of the support protuberances 681. The shapes of the insertion holes of the support protrusions 681 and the steps for inserting the support protuberances 670 are provided since the user can not see the back of the indoor unit when mounting the indoor unit 1. That is, the user roughly places the indoor unit to insert the support protuberances 670 into the circular holes of the support protrusion insert holes 681 and then allows the indoor unit 1 to fall due to its weight, in such a way that the support protuberances 670 can be inserted from Within the rectangular holes of the support protrusion insert holes 681 and thus the indoor unit 1 can be mounted in the exact position. After the support protuberances 680 are accurately inserted into the rectangular holes of the support protrusion insert holes 681, the coupling members 673 are inserted. The coupling members 673 are inserted into the coupling grooves 672 with their at least one outer portion abutting on a peripheral portion of the bearing boss insert holes 681, such that the exact positions of the coupling members 673 they can be guided Meanwhile, the coupling members 673 are inserted until they are in contact with the raised portions 671. The raised portions 671 project to a height equal to the thickness of the faceplate 680. Accordingly, the coupling members 673 are equally spaced apart. of the support protuberances 670 and the front part 680 after the insertion, so that the coupling members 673 can be reliably coupled without flexing or twisting and the coupling of the face plate 680 and the support protuberances 670 can not be break free.

Meanwhile, the angle between the indoor unit 1 and the wall can conveniently be adjusted by changing the width of the side plate 685. For this reason, the side plate 685 can be designed to have a shape that can change in its width. Further, when the indoor unit 1 is mounted on a flat wall instead of a corner of the wall, the faceplate 685 can be mounted directly on the flat wall for convenient assembly work. In this embodiment, it is apparent that the faceplate 680, the side plate 685 and the back plate 690 function as receiver hooks (refer to 660 in Figure 10) and the support protuberances 670 function as the seating guides 650. The Figure 27 is a perspective view of a back cover according to the present invention and Figure 28 is a rear perspective view of a back cover according to the present invention. These drawings show the rear cover 600 in detail, including parts or portions that are not shown in the perspective view of the indoor unit 1. Referring to Figures 27 and 28 the rear cover 600 includes a hole for air suction in at least one portion, for sucking the internal air inside the indoor unit 1. Four edges of the rear cover 600 are inclined at a predetermined angle as they travel backwards, so that the indoor unit 1 can be conveniently mounted. The suction orifices 610 and 620 are formed with grids, such that airborne particles such as dirt and impurities can be prevented from being sucked into the indoor unit 1, and accidents that occur when a child can be prevented. insert your hand of the indoor unit 1. Also, the back cover 600 includes a filter insertion hole 630 for the insertion of a filter. The filter will be described later. It is apparent that the filter is provided to filter the dirt in the sucked air. In addition, the indoor unit 1 can be freely mounted on a corner of the wall because the four edges of the rear cover 600 are in decline at a predetermined angle. When the inner part of the rear cover can be seen, the rear cover includes: a front frame coupling part 701, formed at the front edge, for coupling with the hooks of the rear cover formed on the inner surface of the front frame 200 (refer to 241 in Figure 70); one or more of the first supports of the heat exchanger 702 formed on one side of the inner bottom to receive a heat exchanger 810; and a second support of the heat exchanger 706 formed so as to project on both sides with slope of the filter insertion hole 630, to support the heat exchanger 810. In addition, the rear cover 600 includes drainage container guides 707, the fixing part of the drain container 704, and a fixing part of the pipe cover 705. A drain container 820 and the air guide 400 are to be attached to the drain container guides 707.

The drainage container fixing parts 704 are projected on the left and right sides of the drainage container guides 707 in order to insert the coupling members there, and to attach the drainage container 820 with the rear cover 600. The cover fastening portions of the tube 705 are provided for attaching the tube cover 810 to the rear cover 600. In addition, the rear cover 600 includes a flow guide 710, a surface for receiving the filter 711, and the filter fixing grooves 712. The flow guide 710 extends from the bottom of the filter insertion hole 630 into the indoor unit 1, to guide the sucked air through the filter insertion hole 630. The receiving surface of the filter 711 is provided to guide the lower end of the filter (refer to 720 in Figure 32) when the filter is inserted and placed in the exact position. The filter fixing grooves 712 are provided to insert the protuberances formed in the lower end of the filter 702, to fix the filter 720 in the exact position. In addition, the receiving surface of the filter 711 increases the coupling degree of the filter 720 and the rear cover 600, thereby preventing air leakage. Figure 29 is a section taken on the line II 'in Figure 28 and Figure 30 is a section taken on the line ll-ll' in Figure 28. Referring to these drawings, the receiving surface of the filter 711 is it flexes downwardly from the guide 710, and the fixing slots of the filter 712 is formed at a lower end of the receiving surface 711 and the number of fixing slots of the filter 712 is two. Figure 31 is a partial elongated view of "A" described in Figure 27. Referring to Figure 31 each of the first supports of heat exchanger 702 includes a receiving part of exchanger 712 formed as having a stepped shape in a conductive end portion and an insertion groove for the filter guide 714 formed having a certain depth in the other end portion. The stepped shape of the receiving part of the heat exchanger 713 is provided to be easily coupled with the changing of the capacity of the heat exchanger because the width of the heat exchanger 810 changes according to the diameter of the heat exchanging tube 811. The groove for inserting the filter guide 714 receives a filter guide (refer to Figure 34) that has a predetermined length and allows the filter 720 to be easily inserted. The filter guide 730 is coupled to the coupling parts of the filter guide 703, which project below the first supports of the heat exchanger 702 with a vertical configuration between them, such that the guide 730 filter can be fixed securely. Each of the second supports of the heat exchanger 706 is provided at the upper edge with a receiving groove of the heat exchanger 715, to receive and support the lower part of the heat exchanger 810. The receiving groove of the heat exchanger 715 can receive a rear part or the heat exchanger 810 to a tube thereof. The flow guide 710 guides the sucked air through the insertion opening of the filter 603 and also prevents the drain container 820 from agitating. For this purpose, the flow guide 710 is designed to extend in a horizontal direction. Figure 32 is a perspective view of a filter according to the present invention. Referring to Figure 32, the filter 720 of the present invention can be a high efficiency particulate air (HEPA) filter having a rectangular shape as a whole and provided with plural meshes. The filter 720 includes: ribs for attaching the filter 722 to an inner edge that is to be coupled with the fixing grooves of the filter 712, to support the filter 720 in a low form; and a filter handle 721 that allows the user to grasp it for insertion and removal of the filter 720. Figure 33 is a front perspective view of a rear cover to which the filter is attached and Figure 34 is a perspective view of a filter guide used to guide a filter according to the present invention. Referring to Figures 33 and 34, the filter 720 is inserted through the guide of the filter guide 730 which is provided on each side of the lower surface of the rear cover 600, such that the user can easily insert the filter 720. In detail, the filter guide can be made of plastic and has an L-shaped cross-section forming an insertion portion of the filter 731 on the inner part in order to receive the filter frame 720 on each side side. In addition, the filter guide 730 is formed with at least one attachment extension 730 extending from the outside in a horizontal direction, to engage with each of the coupling portions of the filter guide 703. The extension of fastener 733 is formed with a hole 732, for an insertion of a coupling member and, such as the fastening extension 733 and the coupling portions of the filter guide 703 can be configured and coupled. A filter insertion and structure method will now be described. The filter guides 730 are coupled to the rear cover 600 through the coupling of the fixing extensions 733 of the filter guides 730 and the coupling parts of the filter guide 703 of the rear cover 600. After the coupling of the filter guide 730 and the rear cover 600, the filter 720 is pushed out through the insertion hole of the filter 630 while it is guided through the insertion portion of the filter 731, such that the filter 720 it can be mounted on the rear face of the rear cover 600 with a close contact relationship between them. The filter 720 can be fixed after the filter is inserted sufficiently to cover the inner face of the upper suction hole 610 and the filter fixing ribs 722 are inserted into the filter fixing grooves 712 to support the lower portion of the filter. 720 filter.

Since the filter frame 720 is made of a flexible material such as an elastic-plastic material an unguided portion of the filter 720 flexes smoothly, such that the filter 720 can cover the inner face of the upper suction holes 610 A dust collector can be installed on the front of the filter 735 that applies high voltage to collect fine dust that is not filtered through the 730 filter. The 735 dust collector can include a filtration part 736 extending from each side thereof, for a coupling with the rear face of the rear cover 600, and the rear cover 600 may include a coupling part such as a protrusion in each corresponding portion of the fixing portion 736. In addition , the filter guide 730 is formed with a receiving part of the dust collector 734 in a lower one to receive the dust collector 735 without interfering with the dust collector 735, such that the dust collector 735 can be stably mounted on the dust collector 735. the back cover 600. Figure 35 is a partial perspective view showing a lower portion of the back cover when a filter is installed, Figure 36 is a section taken on the line 111-111 'in Figure 35, and the Figure 37 is a section taken on the line IV-IV in Figure 35. Referring to Figures 35, 36, and 37 the state of the filter assembly will now be described. It is apparent that the filter guide 730 supports the main body of the filter 720 when the filter 720 is fully assembled. The filter fixing ribs 722 formed on the lower edge of the filter 720 are inserted into the fixing grooves 712 when they are in very close contact with the receiving surface of the filter 711, so that the lower edge of the filter 720 can be fixed in a safe way. In addition, the user inserts and removes the filter 720 at his convenience due to the filter handle 721 projecting outward from a center of the bottom edge of the filter 720. In detail, when a user assembles the filter 720, the user grasps the handle of the filter 721 and pushes the filter 721 to some extent through the insertion hole of the filter 630 and then pulls the filter 720 to insert the fixing ribs of the filter 722 into the fixing grooves of the filter 712, therefore completing the assembly of the filter 720. When the user removes the filter 720, the user grasps the filter handle 722 and lightly pushes the filter 720 in an upward direction in order to remove the filter 720 from the fixing fixing slots of the filter 720. filter 712 and then push down the filter 720 while flexing the filter slightly. Figure 38 is a perspective view of a drain container according to the present invention, Figure 39 is a section taken on line VV in Figure 38 and Figure 40 is a section taken on line VI-VI ' in Figure 38. Referring to Figures 38 to 40, the drain container 820 is disposed below the heat exchanger 810 at a predetermined depth, to collect the condensed water dripping from the heat exchanger 810. In addition, the container of drain 820 is provided on an external top with a pair of drain pipes 821 that extend downward in a vertical direction with a predetermined length, to drain the water. In addition, the drain container 820 provided in the inner bottom with first anti-vibration ribs 822 and second anti-vibration ribs 823, to prevent the heat exchanger 810 from vibrating through the support of the lower portion of the heat exchanger 810 Each of the anti-vibration ribs is separated from each other as shown in the drawing and the number of ribs can be appropriately selected. There is a difference in height between the first second anti-vibration ribs. Preferably, the second anti-vibration ribs 823 are higher than the first anti-vibration ribs 822. Accordingly, both the front and rear sides of the heat exchanger 810 can be safely supported. In addition, the drain container 820 is provided at the outer bottom with fastening portions 825 which are engaged with the corresponding drainage container fixing parts 704 of the rear cover 600, for fixing the drain container 820. By aligning the fixing parts of the drain container 704 and the fixing parts 825 and inserting the coupling members there, the drain container 820 can be securely fixed to the rear cover 600. Furthermore, the drain container 820 is also provided in the outer bottom part with guides 824 for inserting the parts of the drain container guide 707 of the rear cover 600. By inserting the guides 824 to the guide parts of the drain container 707, the drain container 820 can be placed and Stably keep it in an exact position before securing it securely through the coupling members. Figure 41 is a perspective view of a tube cover according to the present invention. Referring to Figure 41, the tube cover 830 is provided in the lower portion of the rear cover 600 to prevent a cable from being connected to the indoor unit from the outside and the other tubes exposed to the outside. In detail, the tube cover 813 is provided at an upper edge with the hook portions of the rear cover 832 which are engaged with the tube cover fixing portions 705 formed in the lower end portion of the rear cover 600, such that the tube cover 830 can be fixed to the rear cover 600. In addition, the tube cover 830 is provided on both sides of the bottom edge with second hook portions 833, to engage with the lower portion of the front frame 200. In addition, the tube cover 830 is provided with first hook parts 831 for connection to the air guide 400. In other words, the tube cover 830 is coupled with the air guide 400, the rear cover 600, and the frame front 200 respectively through the hook portions 831, 832, and 833 in such a way that the tube cover 830 can be safely supported after coupling. Figure 42 is a front perspective view of a back cover to which the drain container and the tube cover are coupled according to the present invention. The mounting structure of the drain container 830 is shown in detail in this drawing. Referring to Figure 42, the fixing portions 825 formed in the outer bottom of the drain container 820 and the drainage container attachment parts 704 of the back cover 600 are aligned and engaged using the coupling members. In addition, the guides 824 of the drain container 820 are inserted into the guide portions of the drain container 707, such that the drain container 820 can be easily placed in the proper position before engaging using the coupling means. Figure 43 is a perspective view of an air guide according to the present invention and figure 44 is a rear perspective view of an air guide according to the present invention. Referring to Figures 43 and 44, the shape and structure of the air guide 400 will now be described in detail. The air guide 400 has a rectangular shape as a whole.

The air guides 400 include the hole in the air guide 450 that penetrates the central portion with a predetermined diameter and a bell-shaped mouth 451 formed in the inner circumference of the air guide hole 450 with a predetermined radius of curvature so that it is slightly curved. In addition, the air guide 400 includes the upper air guide 410 and the lower air guide 420, for guiding the inner air sucked through the air guide hole 450 to the discharge orifices 210 and 220. The shapes of the air guides Air guides 410 and 420 are provided to make the passage of air flow smoother. Accordingly, the air guides 410 and 420 are divided in two portions toward each other along the line of the air flow stream in order to guide the air outward along each side, such as The air blown from the turbine fan 800 can be smoothly guided to the discharge ports 210 and 220. In detail, the upper air guide 410 guides the air towards the side discharge ports 220 and the lower air guide 420 guides the air to the lower discharge orifice 210. Meanwhile, the turbine fan 800 is preferably a turbo fan, which sucks the air in an axial direction and discharges the air in a radial direction. Accordingly, the upper air guide 410 can smoothly guide the air towards the side discharge ports 220 and the lower air guide 420 can smoothly guide the air toward the lower discharge port 210. Specifically, the lower air guide 420 is extends with a slope in a tangential direction to the circumference of the turbine fan 800 in order to smoothly guide the air discharged from the turbine fan 800 towards the lower discharge orifice 210, such that the turbulent air flow is it can reduce and therefore the discharged air can be gently guided towards the outside of the indoor unit 1 with a very low loss of air suction. Because the bell-shaped mouth 451 formed in the inner circumference of the air guide hole 450, the hole in the air guide 450 has a slightly curved inner surface and therefore the internal air sucked from the rear can Be gently blown to the front side without any leakage and noise. Further, the receiving part of the turbine fan 452 is provided in the circumference of the bell-shaped mouth 451 in order to allow the turbine fan 800 to be in close contact with the air guide 400 when the turbine fan 800 it seats in the air guide 400. If necessary, the receiving part of the turbine fan 452 can be formed with a sealing part, or an additional bonding agent that can be applied to the receiving part of the turbine fan 452 for a Complete sealed without any air leakage. In addition, the air guide 400 is provided on each side with a receiver of the wind direction alternator 432 curved outwardly with a predetermined radius of curvature, to guide the air guided through the upper air guide 410 towards the side unloader 220. In addition, the wind direction alternator receiver 432 receives the wind direction alternator 430 there, the wind direction alternator 430 being provided to adjust the direction of the air to discharge the internal air sucked in several directions. In detail, a guide for mounting the wind direction alternator 431, which is formed in the form of a protrusion on the curved surface of the wind direction alternator receiver 432, supports the wind direction alternator 430, and supports the connection of the upper and lower portion of the wind direction alternator 430, such that the alternator of the wind direction 430 can rotate at a predetermined angle. A front frame coupling part 480 is formed above the location of the wind direction alternator receiver 432 is connected to the upper air guide 410, for coupling with the front frame 200. An engine for driving the wind direction alternator 433 is arranged in the lower part of the wind direction alternator 430 to drive the wind direction alternator 430 in the left and right direction . It is apparent that the location of the engine for driving the wind direction alternator 433 is not limited to this mode. The 433 engine can be located in any position. In addition, the safety shield 440 is provided between the turbine fan 800 and the wind direction alternator 430 to protect the user from the turbine fan 800 when the user inserts a hand towards the turbine fan 800. The safety screen is it can insert and seal a number of coupling grooves of the safety shield 441 formed in the body of the air guide 400. Furthermore, a space for receiving the electrical part 460 is formed above the upper air guide 410. In detail, the support of the electrical part 465 is formed on one side of the space, to receive the support ribs 461 formed on one side of the electrical part 460. A coupling part of the electrical part 463 is formed on one side of the space, to engage the coupling part 462 formed on the other side of the electrical part 460 through the use of a coupling member. In addition, a raised portion 464 is formed to make space between the electrical part 460 and the air guide 400, for rapid radiation. The installation of the electrical part will be described more fully. The electrical part 460 is provided with a number of electrical elements that generate heat such that the electrical part 460 is separated from the air guide 400 to release heat. Due to the space between the electrical part 460 and the air guide 400 allows the flow of air through them, the heat of the electrical part 460 can be easily released. In order to cause the electrical part 460 to be separated from the air guide 400, one side of the electrical part 460 is fixed to the air guide 400 through the support ribs 461 and the support of the electrical part 465, and the another side of the electrical part 400 is fixed to the air guide 400 through the coupling part 462 and the coupling part of the electrical part 463 while the raised portion 462 is separated from the electrical part from the guide of the electrical part 400. air 400. In other words, the electrical part 460 can be separated from the air guide 400 through the support of the raised portion 464. In addition, a storage space of the part A 421 is formed inside the lower air guide 420, to store consumables such as the electrical part and a fuse. The storage space of part 421 is provided to store said parts that are required to be repeatedly replaced. Usually, the electrical elements that do not require a frequent replacement are arranged in the electrical part 460. On the other hand, it is preferable to store the space for storage of parts with parts that require frequent replacements and in this way frequent accesses by the user . In order to facilitate access to the storage space of parts 421 the front frame 200 is formed with an opening (refer to 234 in Figure 67), so that the storage of parts 421 can be easily accessed through only one aperture in the front panel 100. In addition, the air guide 400 includes a lower discharge hole port 470 disposed below the lower air guide 420 and a lower door drive motor 471 installed at one end of the door 470 to open and close the door 470. In detail, the lower discharge port door repeatedly swings in the up and down directions at a predetermined angle in order to allow the cold air guided by the lower air guide 420 be downloaded in a variable direction. The motor for driving the lower door 471 repeatedly changes its direction of rotation in order to allow the lower discharge orifice door 470 to swing in the up and down directions. Therefore, the cooling of the internal space is more quickly carried out.

In addition, the air guide 400 includes the reception ribs of the heat exchanger 500 having a predetermined height and slope on both sides at the rear, and the coupling part of the rear cover 490 projecting towards a lower portion. from the back. In detail, each of the reception ribs of the heat exchanger 500 is tilted upwards from each end towards its center, according to the shape of the heat exchanger 810, therefore, preventing the leakage of air sucked from the part rear of the indoor unit 1 and cooled in the heat exchanger 810. Figure 45 is a perspective view of a heat exchanger according to the present invention. Referring to Figure 45, the heat exchanger 810 includes anti-leak ribs 812 on both sides, the ribs 812 are butted against the receiving ribs of the heat exchanger 500 for reliable air sealing. The heat exchanger 810 also includes the tube 811 where a coolant 813 flows and is agitated to increase the efficiency of the heat exchanger 810. The 46 is a view showing a connection of a heat exchanger and an air guide. According to the present invention, Figure 47 is a view showing a connection of a heat exchanger, an air guide, and a drain container according to the present invention, and Figure 48 is a partial elongated view of " B "described in Figure 47.

Referring to Figures 46 to 48, the heat exchanger 810 is coupled to the reception ribs of the heat exchanger 500 formed at the rear of the air guide 400. The drain container 820 is coupled below the heat exchanger. heat 810. The guides 824 formed in the outer bottom of the drain container 820 are inserted and fixed to the holes formed in the coupling portions of the rear cover 490, which are integrally formed with the air guide 400. As as described above, the guides in the form of bars 824 formed integrally with the drain container 820 are inserted in both parts of the drain container guide 707 integrally formed with the rear cover 600 and the coupling portions of the rear cover 490, such that the drainage container 820, the air guide 400, and the rear cover 600 can be coupled with one another. In addition, the drain container 820 can be securely fixed through the coupling of fixing parts 825 and the rear cover 600. The first and second anti-vibration ribs 822 and 823 are formed within the drain container 824 are provided to support the lower part of the heat exchanger 810. Since the anti-vibration ribs 822 and 823 support the heat exchanger 810, the heat exchanger 820 is prevented from vibrating back and forth.

Figure 49 is a perspective view schematically showing an air guide according to another embodiment of the present invention. Referring to Figure 49, the guide air 400 includes an upper air guide 411 and a lower air guide 422 in an upper and lower internal portion. The receiver of the wind direction alternator 432 on each side of the air guide 400 and the air guide hole 450 are formed in the same manner as the previous modes. Merely, the specific shapes of the upper air guide 411 and the lower air guide 422 are different, and these shapes are preferable when the side discharge ports 220 in the indoor unit 1 are tightly formed in the upward and downward direction. in order to concentrate the discharged air. Furthermore, these shapes are more preferable when the lower discharge orifice 210 discharges the air in the downward direction is not formed. Figure 50 is a perspective view showing an air guide according to a further embodiment of the present invention. Referring to Figure 50, the guide air 400 includes an upper air guide 411 in the upper interior portion, a lower air guide 422 in the lower portion, a wind direction alternator receiver 432 on each side, and the air guide hole 450 which is formed in the same way as in the previous modalities. Merely, the specific shapes of the upper guide air 411 and the lower air guide 422 are different and these shapes are preferable when the air is widely discharged in the lateral direction without the lower discharge orifice 210. The present invention is not limited to the embodiments shown in Figures 49 and 50. It will be apparent to those skilled in the art that various embodiments may be made in accordance with the shape of the discharge orifices without departing from the scope and spirit of the present invention. Figure 51 is a front perspective view of an indoor unit, showing the inner part of the indoor unit according to the present invention. In the drawings, a front panel is imaginatively transparent in order to show the interior part of the indoor unit. Referring to Figure 51, the opening / closing device 300 is shown within the front panel 100 and the side discharge port doors 290 to be opened and closed through the closure-opening device 300 shown in FIG. Figure 1. Side discharge ports 220 open or close through side discharge port doors 290. When the indoor unit 1 is not used, the side discharge ports 220 can be closed using the orifice doors of discharge 290, for an external appearance. When the indoor unit is used, the side discharge ports 220 can be opened using it. Figure 52 is a perspective view of an opening / closing device for opening and closing the discharge orifices according to the present invention, and Figure 53 is a section taken on the line VII-VII 'in Figure 52. Referring to Figures 52 and 53 an opening / closing device 300 is protected by a front case 320 and a rear case 360 and includes the side discharge port doors 290 on both sides to open and close the side discharge orifices 220 The transfer parts 310 controllably exchange the doors of the side discharge ports 290 in the right and left directions. The structure of the connection between the doors of the discharge hole 290 and the transfer parts 310 will now be described more fully. The structure of the connection includes: a door support bar 291 extending from a side edge of the discharge hole door 290 and flexing downwards; a hook arm 311 formed having a hook shape at one end of the transfer door 310; a bar protrusion 292 projecting from a circumference of the door support bar 291; an arm protrusion 302 projecting from an inner side of the hook arm 311; and a spring 313 disposed between the protrusion of bar 292 and the protrusion of the arm. The spring 313 forces the door support bar 291 to rotate in the clockwise direction. In detail, the spring connects the door support bar 291 with the hook arm 311 and the spring 313 is arranged in a condition that a restoration force is exerted in the wind direction, such that a force acts in the door support bar 291 and also in the door of the side discharge hole 290. Therefore when the discharge orifice door 290 is withdrawn inside the indoor unit 1, the door 290 comes into contact with each front side of the indoor unit 1, such that the door 290 extends despite the restoring force of the spring 313. On the other hand, when the door 290 is pushed out of the rear unit 1, the door 290 it flexes along the front, with a slope on each side of the indoor unit 1 through the restoring force of the spring 313, such that the door 290 can close the side discharge hole 220. The force 290 in some f orma is larger than the side discharge orifice 220 to cover the orifice 220. In Figures 54 to 61 it is shown in the opening / closing device. Figure 59 is a perspective view of a back box and Figure 61 is an inside perspective view of an opening / closing device when a front box is removed. The structure and operation of the opening / closing device 300 will be described in more detail with reference to Figures 59 and 61. Meanwhile, the opening / closing device 300 includes a driving part to which the engine transmits the energy, a connecting part connected to the driving part for transmitting the energy in a predetermined direction or position, a driving part connected to the other end of the connecting part for transmitting energy to the transfer part 310. The driving part, the connecting part, and the driven part are provided because the method of power transmission between the motor and the transfer part 310 and its location can change. Figure 54 is a front perspective view of a transfer part according to the present invention and Figure 55 is a rear perspective view of a transfer part according to the present invention. Referring to Figures 54 and 55, the transfer portion 310 includes: the hook arms 312 at the end portions, for a connection with the discharge port 290; the arms 314 extending from the body of the transfer part 310 and having hook arms 311 at their ends; a grid 317 with which the driven gear 340 is interconnected; a grid guide 315 for guiding the opposite grid; a guide groove 316 and a guide rib 318 that are formed in a predetermined portion in the horizontal direction, to accurately guide a horizontal movement of the transfer portion 310. The transfer portion 310 is provided on each side to move the orifice door of discharge 290 provided on each side. Figure 56 is a perspective view of a link according to the present invention. Referring to Figure 56, a link 330 functions to transmit a driving force from a drive gear 320 that goes to the driven gear 340. In detail, the link 330 has a flat shape that includes a drive grid 332 to the which the driving force of the driving gear 350 is transmitted and a driven grid 333 that transmits the driving force to the driven gear 340. The link 330 has a portion in decline according to the position of the driving and driven gears 350 and 340 Figure 57 is a perspective view of a driven gear according to the present invention. Referring to Figure 57 the driven gear 340 transmits power from link 330 to grid 337. For this purpose, the driven gear 340 includes two toothed portions. In detail, the driven motor 340 includes a second gear 343 with a larger diameter and a first gear 342 with a smaller diameter that are stacked in the front and rear direction, and an axis 340 as the central axis. The second gear 343 is interconnected with the grid 317, for a translation movement of the transfer part 310. The first gear 342 is interconnected with the driven grid 333 in order to be conducted through the link 330. Figure 58 is a perspective view of a driving gear according to the present invention. Referring to Fig. 58, the driving gear 350 is driven through a discharge door motor (refer to 370 in Fig. 60) and drives the grid 330. The driving gear 350 includes a rotation shaft 351 connected to the motor. discharge gate motor 370 and a third gear 352 interconnected to link 330 to transmit power. Figure 59 is a perspective view of a back box. Referring to Figure 59 the back box 260 receives a number of parts and guides the operations of the parts. The rear case 360 is formed with a fixing rib 361 for a coupling with a periphery of the front case 320, in such a way that the internal parts can be protected inside the box in the form of structure formed through the coupling of the boxes rear and front 320 and 360. The structure and shape of the rear case 360 will be described more fully. The movement guide of the transfer part 310, the rear case 360 includes: a guide protrusion 365 formed in a corresponding position in the guide groove 316 of the transfer part 310, for the guided horizontal movement of the transfer part 310; and a rib guide 362 formed in a position corresponding to the guide rib 318 of the transfer part 310 in order to provide a more reliable guide for the movement of the transfer part 310. Here, the guide rib 318 of the part Transfer 310 is inserted into the rib guide 362 for reliable guidance. The protrusion of the guide 365 and the guide of the rib 362 are provided on each side of the rear case 360 in order to guide the two transfer parts 310 which are disposed on both sides.

In addition, the rear case 360 includes link guides 363 projected perpendicular to the surface of the rear case 360, to prevent the link 330 from separating. The gears 340 and 350 can support the left side of the link 330 and the links guides 363 can support the right side of the link 330. The upper and lower sides of the link 330 are free ends and therefore the link 333 can be switched on. directions up and down. In addition, the rear case 360 is provided on both sides with transfer part guides 364 in the shape corresponding to the peripheral shape of the transfer part 310, the guide of the transfer part 364 is placed to contact the parts transfer 310 when the doors of the discharge ports 290 are comely closed and shaped corresponding to the peripheral shape of the transfer portions 310, such that the guides of the transfer portion 364 are exactly in contact with the surface of the transfer parts 310 when the doors of the discharge hole 290 are comely closed. In other words, the guides of the transfer part 364 function to establish the right and left switching limits of the transfer parts 310 and therefore the transfer parts 310 are prevented from separating from the right and left limits of switching. In addition, the rear case 360 includes the grid guides 366 projected from the surface thereof, to guide the horizontal movement of the transfer portions 310 more exactly. In detail the guides of the louvers 366 connect against the louvers 317 of the transfer portions 310 when the louvers 317 are interconnected with the driven motor 340. That is, the rake guides 366 are connected against the opposite straight sides of the toothed sides. of the louvers 317, such that the guides of the louvers 366 can be prevented from disconnecting from the louvers 317 and the driven motor 340, while the louvers 317 move in the right and left directions. Accordingly, the guides of the grid 366 can guide the horizontal movement of the transfer parts 310 more exactly, together with the guides of the ribs 362 and the guide protuberances 365. In addition, the rear case 360 includes a gear mounting hole. impeller 368 and a mounting hole of the driven gear 367 in determined portions, for mounting the driving gear 350 and the driven gear 340 in the exact positions. Figure 60 is a rear perspective view of a front frame to which the discharge door motor is cou in accordance with the present invention. Referring to Figure 60, the discharge door motor 370 is installed in a location corresponding to the mounting hole of the driving gear 368. Preferably, the discharge door motor 370 is a stepper motor capable of changing the directions Revolving instantly and freely.

The operational steps of the lock-open device 300 will now be described. When the side discharge ports 220 are required to be opened or closed according to the operation of the indoor unit 1, the discharge door motor 370 is conducted in one direction or in another direction. When the motor of the discharge door 370 is driven, the driving gear 350 is rotated to cause a translation movement of the link 330 in the up and down directions. The link 330 can be switched to the exact positions under the guides of a vertical link guide 369 in the link guides 363. The driven grid 333 formed in a portion of the link 330 is interconnected with the smaller part of the gear 342 of the gear Driven 340, such that the translation movement of the link 330 can rotate the driven gear 340. The transfer parts 310 move in the right and left direction through the rotation of the driven gear 340. Here, the second gear 343 of the driven gear 340 is connected to the grid 317 of the transfer part 310 to cause a translation movement of the transfer part 310 in the left and right direction. The guide groove 316 and the guide rib 318 can be used to generally guide the horizontal movement of the transfer part 310 and the grid guides 366 can be used to accurately guide the grid 317 of the transfer part 310. Since the grid guides 366 guide the grid 317, the toothed interconnection between the grid 317 and the second gear 343 can be accurately guided and maintained, and therefore in an inactive motion between them can be prevented. Figures 61 and 62 are views showing an opening / closing device for opening and closing the discharge orifices according to the present invention, wherein Figure 68 shows the closed discharge orifices when the transfer parts are located in a external position and Figure 62 shows the open discharge ports when the transfer parts are located in an internal position. Referring to Figure 61 and 62, the aforementioned movement of the transfer part 310 can be clearly understood with reference to the drawings. In detail, when the driven gear 340 is turned clockwise, the louvers 317 move outward to close the side discharge holes 220. It will be apparent that the link 330 moves downwardly and that the driving gear 350 rotates clockwise, in order to rotate the driven gear in the clockwise direction. In addition, the guides of the grid 366, the guide slot 316, and the guide rib 318 are used to operate to guide the transfer portion 310 exactly in the horizontal direction when the transfer portion 310 is alternating. Meanwhile as mentioned above, the hook arms 311 and the doors of the discharge ports 290 are connected in such a way that when the doors of the discharge hole 290 move outwards, the restoring force of the spring 330 causes the doors 290 are turned to both sloping front sides where discharge orifices 220 are formed, so that doors 290 can smoothly cover side discharge orifices 220. Meanwhile, grid guides 315 are formed in the parts 310 to prevent interference between opposing grids 317. Referring again to FIG. 62, when the transfer portions 310 alternate inwardly and each grid 317 overlaps the opposite transfer portion 310, the grid 317 in a Transfer part 310 is guided to move within the grid guide 315 of the other transfer part 310, so The transfer art 310 can be alternated individually and exactly without interference between them. Figure 63 is a view showing an opening / closing device according to another embodiment of the present invention. Referring to Figure 63, an opening / closing device 300 of this embodiment has almost the same structure as described in the previous embodiment. Accordingly, descriptions of the same structure will be omitted. The opening / closing device 300 includes a belt 380 in place of the link 330 to transmit the energy from the driving gear 350 to the driven gear 340. In other words, the belt 380 replaces the link 330 which is connected to the third gear 352 of the drive gear 350 with the first gear 342 of the driven gear 340 in order to transmit the energy between them. The belt 380 can be replaced by any kind of energy transmitting means such as a chain and its replacement is included in this mode. Merely, the energy transmission means are able to smoothly transmit the energy without a slip. Figure 64 is a view showing an opening / closing device according to a further embodiment of the present invention. Referring to Figure 64, an opening / closing device 300 of this embodiment has almost the same structure as that described in the previous embodiment. Accordingly, descriptions of the same structure will be omitted. The opening / closing device 300 includes a roller 381 instead of a driving gear 350. The roller 381 does not have a serrated circumference and the first gear 342 of the driven gear 340 is also formed with a toothed circumference. A belt 382 is arranged around the circumference of the roller 381 and the first gear 342, to connect the roller 381 with the first gear 342. With this structure, the opening / closing device 300 can be operated in the same way. Figure 65 is a view showing an operation of an opening / closing device according to the present invention. Referring to Figure 65, when the transfer portions 310 are being switched out, the doors of the discharge ports 290 move outward while rotating towards the sloping side discharge orifices 220 in order to close the holes of the discharge ports. discharge with declivity 220. The rotational movement of the doors of the discharge hole 290 is caused through the springs 33 as already shown in Figure 53 and the description thereof. When the side discharge orifices 220 are open, the doors of the discharge hole 290 move inwardly along the inclined sides of the front frame 220 while maintaining their flat shapes, such as the doors of the discharge hole 290 can maintain their flat shapes when the transfer parts 310 move completely towards the interior locations. Figure 66 is a rear perspective view of a front panel according to the present invention. Referring to Figure 66, the front panel 100 is provided on the front of the indoor unit 1 and can be painted with various colors or decorated with images or photographs. In detail, the front panel 100 includes: the window 111 formed at a predetermined location with a transparent material, to allow a photograph or screen of the display unit (referred to as 240 in Figure 67) to be able to see through it; the upper hooks 113 formed so as to project in the upper rear portions, to engage with the front frame 200; and lower hooks 112 formed in the manner of projections in the lower back portions. The front panel 100 can be hung on the front frame 200 and fixed securely and through upper hook means 113 and lower hooks 112. The front panel 110 can be made of a plastic material for the cost and convenience of manufacture. However, since the front panel 100 made of a plastic material has a resistance problem such as a deformation or a break, at least one reinforcing member 120 can be adhered in a vertical direction of the front panel 100 to solve this problem . There are shown two reinforcing members 120 in the drawing. The reinforcing members 120 can be made of metal having a high strength. A structure of the reinforcing member 120 and the corresponding structure of the front panel 100 will now be described in detail. The reinforcing member 120 has a hat-shaped section. In other words, the reinforcing member 120 has a groove along its vertical centerline, and both side ends flex and extend in outward lateral directions. The reinforcing member 120 includes holes 121 through which the coupling members are to be inserted, for coupling the member 120 by the front panel 100. The front panel 100 includes: protuberances 131 corresponding to the holes 121; a rib formed in the vertical direction to connect the protuberances 171 to protect them; and a plurality of guide ribs 130 for supporting the lateral end of the reinforcing member 120. The front panel 100 may include a slot in the rear portion in which the reinforcing member 120 is to be seated, to receive the member 120 in a exact position. In this case, the guide ribs 130 can be formed in the groove. The steps of installing the reinforcement member 120 will now be described in detail. Settling of the reinforcing member 120 in the exact place of the front panel 100 using the guide ribs 130. Here, the holes 121 and the corresponding protuberances 131 are aligned if the guide ribs 130 accurately guide the reinforcement member 120. The insertion of the members Coupling through the holes 121 and the protuberances 131 which are aligned thereby complete the coupling of the reinforcing member 120 and the front panel 100. In Figure 66 the reinforcing member 120 is shown attached to the left side of the front panel 100, but not on the right side. Figure 67 is a front perspective view of a front frame according to the present invention. Referring to Figure 67, the front frame 200 includes: the side discharge doors 220 on both sides with slope; the upper panel supports 231 in the upper portion to which the upper hooks 113 of the front panel 100 are coupled; and the lower panel supports 232 in a lower portion in which the lower hooks 112 of the front panel 100 are coupled. The front panel 100 can be fixed to the front frame 200 thanks to the upper supports 231 and the lower supports 232 without the additional coupling members such as screw, such that the user can easily remove the front panel 100 to inspect the inner part of the indoor unit 1 and carry out the required work. The coupling members may be applied in order to secure the fastening of the front panel 100 to the front frame 200. In addition, the front frame 200 includes: a receiving part of the motor 233 in the front part; and a deployment unit 240 in which a deployment device such as a liquid crystal display will be located, to indicate the operational status of the indoor unit 1. In addition, the front frame 200 includes an opening 234 in a predetermined lower portion, for easy access to the parts stored in the parts storage space 421. When the user is going to repair the indoor unit 1, the user can easily repair or replace the parts. problematic parts using the parts within the part storage space 421 through the opening 234 only after removing the front panel 100, instead of disassembling the entire indoor unit 1. Figure 68 is a rear perspective view of a frame front according to the present invention and Figure 69 is a partial elongated view of "C" described in Figure 68. Referring to Figures 68 and 69 the front frame 220 includes a motor attachment part 235 for receiving the motor of the discharge door 370 and therefore the discharge door motor 370 can be mounted in an exact position. In addition, the front frame 200 includes the bottom discharge hole 210 in the bottom portion as described above.

In addition, the front frame 200 includes air sealing portions 236 at the rear with shapes corresponding to the upper air guide 410 and the lower air guide 420, to prevent an air leak at the points of contact with the air guides. upper and lower air 410 and 420. It is evident that the air sealing portions 236 have the shape corresponding to the upper and lower air guides 410 and 420, to reduce the loss of cold air. In addition, the front frame 200 includes a plurality of air guide hooks 242 and rear cover hooks 341 on the portions of the inner side surface, for an exact engagement with the air guide 400 and the rear cover 600. The hooks air guide 242 and the rear cover hooks 241 are respectively coupled with the corresponding coupling portions formed on the front edges of the air guide 400 and in the rear cover 600. In addition, the front frame 200 includes side sealing portions 244 fixed to the internal sides using a method such as adhesion, to prevent the discharged air from re-entering through the side discharge holes 220 and passing again to the air guide 400. In addition, the front frame 200 includes support brackets. secure screen 243, to support one side of the security screen 440, so that the security screen 440 can not be removed thanks to the pushing force d the user. Meanwhile, the front frame 200 is provided on a front portion of an inner surface with a motor receiving portion 233 for receiving a fan motor 280 which drives the turbine fan 800. The fan motor 280 is supported while its vibration is decreases. The support structure for engine 280 will now be described. A receiving portion 237 is formed in a central recessed portion of the receiving part of the motor 233, to receive a vibration-proof member, such as the propagation of the vibration from the fan motor 280 to the front frame 200 can be diminished thanks to the vibration-proof member disposed between the fan motor 280 and the front frame 200. The vibration-proof member can be made of a sponge, a plastic material or the like. In addition, an engine assembly (refer to Figure 71) is provided separately to fix the fan motor 280 to the front frame 200. The fan motor 280 is placed inside the motor assembly and the motor assembly is coupled with the front frame 200, therefore completing the assembly of the fan motor 280. In detail the front frame 200 includes: a motor mounting support part 238, for guiding the motor assembly and indicating the location where the motor assembly is fixed; and a fixing part of the motor mounting 239, for fixing the motor assembly to the front frame 200. FIG. 70 is a rear perspective view of a front frame in which the motor is mounted using a motor assembly in accordance with the present invention.

Referring to Figure 70, the motor assembly 270 accommodates the fan motor 280 which is suspended in the support part of the motor mount 238, the coupling members are inserted in the fixing part of the motor mount 239 of such So that the motor assembly 270 can be securely fixed to the front frame 200. A vibration-proof member 271 is filled in a space formed between the motor assembly 270 and the front part of the fan motor 280, to efficiently decrease the propagation of vibration from the front of the motor of the fan 280 to the motor assembly 270. In other words, propagation of the vibration from the fan motor 280 to the front frame 200 is decreased through the vibration-proof member arranged in the receiving portion 237 and the propagation of the vibration from the motor of the fan 280 to the motor assembly 270 is decreased through the motor. vibration-proof embryo 271, such that the vibration generated from the fan motor 280 can be prevented from being propagated, thereby efficiently reducing the vibration and noise generated during the operation of the fan motor 280. Figure 71 is a perspective view of an engine assembly according to the present invention. Referring to Figure 71, the motor assembly 270 includes: a receiving part of the vibration-proof member 272 in which the vibration-proof member 271 is inserted; support parts 273 received in the receiving part of the motor assembly 238, to guide the location of the motor assembly 270; and fastening holes 274 formed in the support portions 273 of the front frame 200, for alignment with the mounting portions of the motor assembly 279 on the front panel 200. The support portions of the motor assembly 238 of the front frame 200 are used to guide the assembly of the 270 motor in the front frame 200 and the predetermined coupling members are inserted into the fixing holes 274 and the fixing part of the motor assembly 239, in such a way that the motor assembly 270 can be fixed to the front frame 200.

PREFERRED MODALITY OF THE INVENTION An indoor unit of an air conditioner of the present invention has been described and illustrated herein with reference to preferred embodiments thereof. It will be apparent to those skilled in the art that various modifications and variations can be made therein without departing from the spirit and scope of the invention. In this way, it is intended that the present invention cover the modifications and variations of this invention that fall within the scope of the appended claims and their equivalents. A number of modalities that can be changed will now be provided without departing from the spirit and scope of the present invention. In the case where a front panel and a front macro are engaged in such a way that they are coupled using a hinge on one side and a hook on the other side, instead of hooking the front panel to the front frame, the repair work or similar more conveniently carried out. Further, in the case where the front panel is provided to cover a predetermined portion, instead of a complete portion, of the front panel, the front frame can be formed with a discharge hole in the central portion and therefore can supply a cold air more quickly. In addition, a grille provided in a suction hole of a rear cover is not limited to the shape shown in the accompanying drawings. The grid can be formed in any way that is capable of sucking air gently and can be used safely through the user. Also, although the support protrusions of the back cover are formed at the four corners of the back cover, to support and properly distribute the load of an indoor unit, the location and shape of the support protrusions can be changed in accordance with the operational condition, shape or size of the indoor unit. In addition, the motor assembly accommodates a fan motor that includes two end faces with a symmetrical relationship and a flex shape that is formed by flexing twice respectively. The flexure shape of the motor assembly can be changed according to the shape of the fan motor. Meanwhile, the inner unit of the present invention can be conveniently used for an air conditioner having an external unit and two internal units. Specifically, one of the internal units is mounted on the wall and the other indoor unit is placed on the floor, therefore increasing the user's conviction. In addition, a character image may be displayed on a display unit of an indoor unit according to the operational state of the indoor unit, thereby increasing the convenience and interest of the user. In addition, a heat exchanger of an indoor unit is flexed to approximately the central portion for efficiency in heat exchange. However, the heat exchanger can be flexed in two or more portions without limitation, such that heat can be exchanged in the heat exchanger.

Industrial Applicability An indoor unit of an air conditioner has an efficient and integrated structure, such as the energy efficiency and user convincing can be increased. The integrated structure indoor unit also has a simple and strong structure, such as the life of the indoor unit can be increased. In addition, the air flow of the indoor unit is improved with a rear suction / front discharge method, such that the indoor unit can be installed in the desired location without limitation, thereby increasing the user's convenience.

In addition, the indoor unit has a larger burst capacity compared to the indoor unit of the same size, such that the indoor unit can have an increased efficiency.

Claims (23)

NOVELTY OF THE INVENTION CLAIMS

1. - A front unit of an air conditioner, comprising: a front frame to protect a front side of the indoor unit; a heat exchanger mounted in the outer space, to carry out the heat exchange; an air guide to guide the flow of air from the inside of the indoor unit; inclined surfaces of which both surfaces and / or the upper and lower surfaces are inclined at a predetermined angle; at least one suction orifice formed in at least one of the inclined surfaces and at least one position of a middle portion; a rear cover including a hole for inserting the filter formed in the lower portion thereof; and a filter inserted in the hole for the insertion of the filter.

2. The indoor unit according to claim 1, further characterized in that it additionally comprises a suction grid to protect the suction orifice.

3. The front unit according to claim 1, further characterized in that it additionally comprises a coupling part of the front frame formed in a front edge portion of the rear cover and coupled with the front frame.

4. - The indoor unit according to claim 1, further characterized in that it additionally comprises a filter guide coupled in upward and downward directions to the inner side portions of the rear cover, to support the filter.

5. The indoor unit according to claim 4, further characterized in that the rear cover comprises a first support portion ntercambiador heat formed on the inner surface of the rear cover such that an installation position guide the filter guide.

6. The indoor unit according to claim 1, further characterized in that the rear cover comprises a first support part for the heat exchanger formed in the lower portion of the rear cover, to support the heat exchanger in a rear direction .

7. The unit nterior according to claim 1, further characterized in that the rear cover comprises a first support for the heat exchanger projected in a direction inward of the rear cover from both positions of the insertion holes of the filter, to support the heat exchanger.

8. The front unit according to claim 1, further characterized in that it additionally comprises: a drain fan formed in the lower portion of the heat exchanger, to collect the condensed water; and a guide part of the drain fan formed in a lower portion of the back cover in such a way that a lower portion of the drain fan is fixed.

9. The inner unit according to claim 1, further characterized in that it comprises: a tube cover formed in the lower portion of the rear cover, to protect a tube connected to the heat exchanger; and fixed part of the tube cover formed of at least a lower portion of the back cover in such a way that the tube cover is fixed to the back cover.

10. The indoor unit according to claim 1, further characterized in that it further comprises in a flow guide extending from a lower portion of the insertion opening of the filter to an inner portion of the rear cover.

11. The inner unit according to claim 1, further characterized in that it additionally comprises: a filter fixing rib projecting from a lower end of the filter in such a way that the filter is fixed to the rear cover; and a filter fixing slot processed in the lower portion of the filter insertion hole in such a way that the filter fixing rib is inserted.

12. The inner unit according to claim 1, further characterized in that the filter comprises a filter handle that extends with a stepped portion at the lower end of the filter in such a way that the user can grip the filter.

13. - The indoor unit according to claim 1, further characterized in that it additionally comprises a surface of settlement of the filter formed the lower surface of the hole insertion of the filter, to guide the settlement of the filter when placed filter.

14. The indoor unit according to claim 1, further characterized in that it additionally comprises a dust collector formed on the inner surface of the rear cover where the suction orifice is formed, to filter the fine dust contained in the sucked air. .

15. An indoor unit of an air conditioner comprising: a front frame to protect the front side; a rear cover to protect the back side; a heat exchanger received in the internal space of the front frame and the rear cover, to carry out the heat exchange; a turbine fan to blow the air through the pit; an air guide to guide the flow of air through the turbine fan; a filter provided on the inner surface of the back cover; a drain fan disposed in an internal portion of a lower side of the rear cover, for draining the condensed water from the heat exchanger; and a filter guide fixed to the inner surface of the rear cover mounted in an exact position of the rear kite.

16. The indoor unit according to claim 15, further characterized in that the filter guide has a flexed portion formed in at least a portion thereof to be guided when the filter is inserted.

17. The indoor unit according to claim 15, further characterized in that it further comprises: a dust collector formed in the position adjacent to the suction hole in an inner surface of the rear cover; and a settling of the dust collector disposed in a predetermined position of the filter guide such that the filter guide is guided.

18. The indoor unit according to claim 15, further characterized in that it comprises additionally a rib that prevents vibration formed by extending one or more columns of the internal portion of the drain fan, to prevent the heat exchanger from vibrating.

19. The indoor unit according to claim 15, further characterized in that it additionally comprises a drain fan guide extending from the lower end of the drain fan and connected with the air guide and / or the rear cover .

20. An indoor unit of an air conditioner comprising: a front frame to protect the front side; a rear cover to protect the rear side, the rear kite has a circumference that includes an inclined portion is internally inclined when it is directed to the rear; a heat exchanger received in the internal space of the front frame and the rear cover, to perform the heat exchange; a turbine fan to blow the air through force; an air guide to guide the flow of air through the turbine fan; and a filter inserted through a predetermined position of the rear cover and mounted on the inner surface of the rear cover.

21. The indoor unit according to claim 20, further characterized in that the inclined portion has air suction hole formed in at least a portion thereof, to suck the external air.

22. The front unit according to claim 20, further characterized in that it additionally comprises an air suction hole formed in the central portion of the rear cover.

23. The front unit according to claim 20, further characterized in that the heat exchanger has a rear side supported by the rear kite, a lower side supported by the drain fan, and a front side supported by the guide of the air.