Indoor unit of air conditioner

Abstract

An indoor unit of an air conditioner according to the present invention may comprise: a housing assembly having a suction port formed on the rear surface thereof for sucking in air and a side discharge port formed on the front surface thereof for discharging air; a heat exchange unit which is located inside the housing unit and exchanges heat with air flowing in from the suction port; an air supply fan assembly which is located on the front surface of the heat exchange assembly and blows air passing through the heat exchange assembly to the side surface discharge port; and a side door module for opening and closing the side discharge port. The side door module includes: a side door assembly including a side door for opening and closing the side discharge port, and a support frame coupled to the side door and formed with a guide hole for guiding the front-rear direction movement of the side door; a door support member supported by the support frame and supported by the guide hole; and a side door driving unit that supplies a driving force to the side door assembly.

Description

Technical Field

[0001] The present invention relates to an indoor unit of an air conditioner, and more particularly, to an indoor unit of a vertical air conditioner. Background Art

[0002] Typically, an air outlet may be formed at the front of the air conditioner, and an air conditioning unit such as a heat exchanger or filter that can change the temperature, humidity or cleanliness of the air may be provided inside the air conditioner, as well as an air supply device that allows the air to flow.

[0003] The air conditioners used in residences are mainly split-type air conditioners, in which an indoor heat exchanger and an indoor blower are provided in the indoor unit, and an outdoor heat exchanger, an outdoor blower, a compressor, etc. are provided in the outdoor unit, and refrigerant piping is used to connect the indoor and outdoor units separated from each other. Split-type air conditioners can be divided into wall-mounted and vertical types according to the shape of the indoor unit.

[0004] Korean Patent Gazette No. 10-1403003 discloses an indoor unit of a vertical air conditioner, which includes: a main body, formed with an air intake portion and an air discharge portion, for sucking in air, conditioning it, and then discharging it; and an openable and closable blade arranged on the main body to simultaneously open and close the air intake portion and the air discharge portion and guide the air; the blade includes two inner members arranged above and below and an outer member connected to the two inner members.

[0005] However, in the indoor unit of the existing air conditioner, the inner side components of the blade are composed of multiple components. If they are combined into one component, there is a possibility of combination deviation, and there is also a problem of position deviation between the combination part and the support part that are combined and supported at a specified position of the inner side component.

[0006] Furthermore, if a plurality of inner members are combined into one member, the strength of the combined portions of the inner members constituting the one member is reduced, and the inner member assembly may be partially bent or move in a wobbly manner, thereby causing a problem of imbalance in driving and reduced driving stability.

[0007] Patent Document 1: Korean Patent Gazette No. 10-1403003 (May 27, 2014) Summary of the Invention

[0008] The object of the present invention is to provide an indoor unit of an air conditioner, which can improve durability and driving stability by minimizing the shaking or bending of a side door assembly including a support frame and a side door during operation, and can prevent in advance the occurrence of coupling deviation of the support frame to the side door and position deviation of the door support member relative to the support frame.

[0009] Another object of the present invention is to provide an indoor unit of an air conditioner, which can ensure the rigidity of a support frame against external impact by applying a gas forming mold structure to the support frame of a side door assembly.

[0010] Another object of the present invention is to provide an indoor unit of an air conditioner, which prevents a side door from opening outward by ensuring a gap between a door support member coupled between the support frame and the side door and the support frame.

[0011] To achieve the above-mentioned objectives, the indoor unit of an air conditioner according to the present invention is characterized by comprising: a housing assembly comprising an upper housing and a lower housing, the upper housing having an air inlet formed on a rear surface thereof for drawing in air, a discharge portion provided on a side surface thereof, the discharge portion having a side discharge port formed therein for discharging air, the lower housing being separated from the upper housing by a horizontal base; a heat exchange assembly located inside the housing assembly and exchanging heat with air flowing in from the air inlet; and an air supply fan assembly located on a front surface of the heat exchange assembly and rotating to blow air passing through the heat exchange assembly toward the side discharge port; a side door module for opening and closing the side discharge port comprising: a side door assembly comprising left and right side doors and a support frame, the left and right side doors opening and closing the side discharge port, the support frame being coupled to the side doors and having guide holes formed therein for guiding the side doors in forward and backward movement; a door support member supported by the discharge portion and the support frame and supported by the guide port; and a side door drive unit for providing driving force to the side door assembly.

[0012] One end portion of the door support member supported in the guide hole of the support frame may be a vertical portion, and the other end portion of the door support member connected to the vertical portion and fixed to the discharge portion may be a horizontal portion.

[0013] According to an embodiment of the present invention, the vertical portion of the door support member may be formed to be long in the transverse direction so as to guide the side door assembly in the transverse direction, and the horizontal portion may be fixed to the discharge portion.

[0014] According to an embodiment of the present invention, the door support members may be respectively arranged adjacent to the upper end and the lower end of the side door assembly, and at least one door support member may be arranged at equal intervals between the upper end and the lower end.

[0015] In addition, according to an embodiment of the present invention, the side door driving portion may be respectively arranged at positions adjacent to the upper end and the lower end of the side door assembly.

[0016] This can prevent the occurrence of coupling deviation of the support frame with respect to the side door and position deviation of the door support member with respect to the support frame.

[0017] According to an embodiment of the present invention, a support rib is provided in the joint space between the support frame and the side door. The support rib is supported on the inner side surface of the guide hole entrance side of the support frame to support the vertical portion of the door support member. The support rib can be formed as shape, so as to form an inverted "U"-shaped groove together with the inner side surface of the support frame.

[0018] According to an embodiment of the present invention, the vertical portion is a load-supporting portion that supports the load of the side door assembly. The load-supporting portion may be provided on a door support member located at the uppermost end of the support frame.

[0019] According to an embodiment of the present invention, the vertical portion of the door support member is accommodated in the groove without gap, and a fixing rib separated from the vertical portion can be formed on the inner side surface of the side door facing the support frame in the coupling space between the support frame and the side door.

[0020] Thus, by ensuring a gap between the door support member and the support frame, the side door is prevented from opening outward, and the durability and driving stability of the side door assembly can be ensured.

[0021] According to an embodiment of the present invention, the side door driving unit may include: a rack, arranged on the inner surface of the support frame; a pinion, arranged in the discharge part and engaged with the rack; and a driving motor, arranged in the discharge part, providing driving force to the pinion.

[0022] According to an embodiment of the present invention, the support frame is formed by gas injection molding, and a mold cavity and a gas injection port may be formed at both side ends of the mold in the shape of the support frame.

[0023] According to an embodiment of the present invention, both side ends of the support frame may include protrusions having a first protrusion and a second protrusion protruding toward the side door, and both side ends of the side door may include covers surrounding the protrusions.

[0024] According to an embodiment of the present invention, the protruding length of the first protruding portion of the side door assembly is longer than that of the second protruding portion, and the thickness of the side door assembly increases from the second protruding portion side to the first protruding portion side.

[0025] According to an embodiment of the present invention, the outer side surface of the first protrusion may be formed as an arc-shaped inclined surface toward the inner side surface, so as to be in surface contact with a corresponding surface of the side discharge port.

[0026] According to an embodiment of the present invention, the cover portion may include: a first cover portion, which surrounds the end of the first protrusion and whose end is connected to the outer side surface of the first protrusion in an arc shape; and a second cover portion, which is perpendicular to the outer side surface of the second protrusion.

[0027] Thereby, the rigidity of the support frame can be ensured against external impact.

[0028] According to the indoor unit of the air conditioner of the present invention having the above-described structure, the driving stability of the side door assembly can be improved by minimizing the shaking or bending of the side door assembly during operation.

[0029] In addition, it is possible to prevent beforehand the occurrence of coupling deviation of the support frame with respect to the side door and position deviation of the door support member with respect to the support frame.

[0030] By applying the gas forming die structure to the support frame, the rigidity of the support frame can be ensured against external impact.

[0031] By ensuring a gap between the door support member and the support frame, the side door is prevented from opening outward, thereby improving the durability and driving stability of the side door assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a front perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention.

[0033] Figure 2 It is a rear perspective view of the indoor unit of the air conditioner according to the embodiment of the present invention.

[0034] Figure 3 This is a front perspective view showing a state in which a side door of an indoor unit of an air conditioner according to an embodiment of the present invention is open.

[0035] Figure 4 This is a front perspective view showing a state in which the side blade modules of the indoor unit of the air conditioner according to the embodiment of the present invention are opened.

[0036] Figure 5 It is an exploded perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention.

[0037] Figure 6 It is along Figure 1 Cross-sectional view taken along line 6-6.

[0038] Figure 7 This is a rear perspective view showing the structure of the air-sending fan assembly according to the embodiment of the present invention.

[0039] Figure 8 It is a perspective view showing a state where the air supply fan assembly and the shroud housing are combined according to an embodiment of the present invention.

[0040] Figure 9 It will Figure 8 An enlarged cross-sectional view of part "A".

[0041] Figure 10 This is a diagram showing a state where the air-sending fan assembly according to the embodiment of the present invention is opened relative to the shroud casing.

[0042] Figure 11 It will Figure 10 An enlarged view of part "B".

[0043] Figure 12 It is a front perspective view of an air supply fan assembly according to an embodiment of the present invention.

[0044] Figure 13 It is a front perspective view of an air supply module cover of an air supply fan assembly according to an embodiment of the present invention.

[0045] Figure 14 It is along Figure 3 A cross-sectional view taken along line 21-21.

[0046] Figure 15 It is along Figure 12 A sectional three-dimensional diagram taken along line 17-17.

[0047] Figure 16 It is a perspective view of a side door assembly according to an embodiment of the present invention.

[0048] Figure 17 It is a separated three-dimensional view of the side door assembly according to an embodiment of the present invention, which is separated into the side door and the support frame.

[0049] Figure 18 yes Figure 16 Vertical cross-sectional perspective view of .

[0050] Figure 19 It is a vertical cross-sectional view of a side door assembly according to an embodiment of the present invention.

[0051] Figure 20 FIG. 1 is a perspective view showing a side blade module according to an embodiment of the present invention.

[0052] Figure 21 It is along Figure 12 A sectional three-dimensional diagram taken along line 16-16.

[0053] Figure 22 and Figure 23 1 is a perspective view showing a hinge portion according to an embodiment of the present invention. DETAILED DESCRIPTION

[0054] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings for illustrating indoor units of air conditioners according to various embodiments of the present invention.

[0055] Figure 1 1 is a front perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention. Figure 2 1 is a rear perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention. Figure 3 1 is a front perspective view showing a state where a side door of an indoor unit of an air conditioner according to an embodiment of the present invention is open. Figure 4 This is a front perspective view showing a state where the side blade modules of the air conditioner according to the embodiment of the present invention are open. Figure 5 It is an exploded perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention.

[0056] First, refer to Figures 1 to 5 , the overall structure of the components constituting the indoor unit of the air conditioner according to the embodiment of the present invention is described, and the structure of each component is described.

[0057] [Definition of direction]

[0058] The indoor unit of the air conditioner according to the embodiment of the present invention can be configured such that air is sucked in through the suction port 1210 and the sucked air undergoes heat exchange while passing through the heat exchanger 3100. The air that has undergone heat exchange in the heat exchanger 3100 can be discharged through the discharge port 2111 after passing through the air supply fans 212, 222, and 232.

[0059] The direction in which the air drawn in from the air inlet 1210 flows toward the heat exchanger 3100 and the air supply fans 212, 222, 232 can be defined as "forward." In this case, it can be understood that the air flows forward from the air inlet 1210 toward the heat exchanger 3100, and also flows forward from the heat exchanger 3100 toward the air supply fans 212, 222, 232.

[0060] In contrast, the direction from the air supply fans 212 , 222 , 232 through the heat exchanger 3100 toward the suction port 1210 may be defined as “rearward”.

[0061] The direction in which air passing through the air supply fans 212, 222, and 232 flows toward the outlet 2111 can be defined as "lateral." When a plurality of outlets 2111 are provided, it can be understood that any one of the plurality of outlets 2111 is located on "one side" or "the left side" of the air supply fans 212, 222, and 232, while another outlet 2111 is located on "the other side" or "the right side" of the air supply fans 212, 222, and 232.

[0062] The indoor unit can include a flow generating unit, which forms a space for the heat exchanger 3100 and the air supply fans 212, 222, and 232; and a machine room, where the control box and drainage piping for operating the indoor unit are located. The flow generating unit and the machine room can be arranged in a vertical direction. Specifically, the flow generating unit can be located above the machine room, while the machine room can be located below the flow generating unit.

[0063] From another perspective, the indoor unit further includes a decorative cabinet shelf, and the direction in which the flow generating portion and the decorative cabinet shelf are arranged can be defined as the "up-down direction." In particular, the flow generating portion can be located above the decorative cabinet shelf, and the decorative cabinet shelf can be located below the flow generating portion.

[0064] From another aspect, a plurality of air supply fans 212 , 222 , 232 are provided, and the direction in which the plurality of air supply fans 212 , 222 , 232 are arranged can be defined as an up-down direction.

[0065] [Overall structure of the indoor unit]

[0066] The indoor unit of the air conditioner according to an embodiment of the present invention may include: a shell assembly 1000, which forms an outer shape; an air supply fan assembly 2000, which is arranged on the inner side of the shell assembly 1000 to form air flow; a heat exchange assembly 3000, which enables the air flowing under the action of the air supply fan assembly 2000 to exchange heat with the refrigerant; and a filter assembly 4000, which filters the air flowing into the inner side of the shell assembly 1000.

[0067] [Case assembly]

[0068] The housing assembly 1000 of this embodiment of the present invention includes a main body rear housing 1200, which is formed with an air intake 1210 for drawing air in from the rear. Inside the main body rear housing 1200, a mounting space for the heat exchange assembly 3000, which is located in the heat exchanger 3100, is formed. The main body rear housing 1200 forms the upper rear exterior portion of the indoor unit. Because the heat exchange assembly 3000 is housed within the main body rear housing 1200, the main body rear housing 1200 can be referred to as the heat exchanger housing.

[0069] The housing assembly 1000 includes a main body front housing 1100 , which is disposed in front of a main body rear housing 1200 to form an upper front appearance. Major components such as the heat exchange assembly 3000 and the filter assembly 4000 may be disposed inside the housing assembly 1000 .

[0070] The main body front housing 1100 and the main body rear housing 1200 may be referred to as upper housings 1100 and 1200. For convenience of description, the main body rear housing 1200 may be referred to as a first housing, and the main body front housing 1100 may be referred to as a second housing.

[0071] In addition, the housing assembly 1000 includes a lower housing 5000 , which is disposed below the upper housings 1100 and 1200 . A space for a machine room is formed inside the lower housing 5000 , and the lower housing 5000 supports the upper housings 1100 and 1200 .

[0072] The main body rear case 1200 of the upper cases 1100 and 1200 has an air inlet 1210 for sucking air from a room where the indoor unit is installed. The air inlet 1210 may be formed on the rear side of the main body rear case 1200 in a limited area.

[0073] When the air supply fan assembly 2000 is driven to flow air, indoor air is sucked in through the suction port 1210 , and the sucked air flows toward the air supply module part 2100 of the air supply fan assembly 2000 through the heat exchanger 3100 of the heat exchange assembly 3000 arranged on the inlet side of the air supply fan assembly 2000 .

[0074] The main front housing 1100 of the upper housings 1100 and 1200 includes a display unit 1110 for displaying the operating status of the indoor unit or inputting user commands. Considering the user's sight line, the display unit 1110 of the embodiment of the present invention can be arranged at a position corresponding to the user's eye level.

[0075] A space is formed inside the upper housings 1100 and 1200 for arranging the air-supply fan assembly 2000 , the heat exchange assembly 3000 , and the filter assembly 4000 .

[0076] In the embodiment of the present invention, an air supply fan assembly 2000 may be disposed behind the main body front housing 1100 of the upper housings 1100 and 1200 , and a heat exchange assembly 3000 may be disposed in front of the main body rear housing 1200 .

[0077] Figure 6 It is along Figure 1 A cross-sectional view taken along line 6-6 shows the heat exchange assembly and the lower housing. Figure 6 The relative configuration structure of the heat exchange assembly and the lower housing after the air supply fan assembly 2000 is removed is shown.

[0078] Reference Figure 6 The lower housing 5000 is arranged on the lower side of the upper housings 1100 and 1200, supported on the ground where the indoor unit is installed, and supports the upper housings 1100 and 1200.

[0079] The lower housing 5000 includes: a control box (not shown) provided inside with control components for the operation of the air conditioner; and a lower housing main body 5100 that forms a space for arranging pipes such as a drain pipe through which condensed water generated in the heat exchanger 3100 flows. The control box is located at the inner center of the lower housing main body 5100 and can be supported by the lower housing main body 5100.

[0080] Such a lower housing main body 5100 is in the shape of a box open at the front and is supported on the ground, and a space such as a mechanical room is formed inside the lower housing main body 5100.

[0081] The lower housing 5000 includes a base rear surface part 5400 that forms the rear appearance of the lower part of the indoor unit.

[0082] The base rear surface part 5400 is formed in a substantially "C" shape so as to be able to cover the sides and rear of the lower housing 5000. The base rear surface part 5400 is arranged on the outside of the lower housing 5000 and can strengthen the rigidity of the lower housing 5000.

[0083] A refrigerant pipe hole 5401 through which the refrigerant pipe 3200 of the heat exchange component 3000 passes and a drain pipe hole 5402 through which a drain pipe for discharging condensed water generated by the heat exchanger 3100 passes can be formed in the base rear surface part 5400. Such refrigerant pipe hole 5401 and drain pipe hole 5402 can be formed in communication with the lower housing main body 5100.

[0084] The lower housing 5000 may further include a decorative cabinet shelf 5200 provided in front of the lower housing main body 5110.

[0085] The lower housing 5000 includes a base front surface part 5300 that is combined with the front of the opening of the lower housing main body 5100 to form the lower front appearance.

[0086] The base front surface part 5300 can cover the open front of the lower housing 5000. The base front surface part 5300 is arranged on the outside of the lower housing 5000 and can strengthen the rigidity of the lower housing 5000.

[0087] The upper housings 1100 and 1200 including a main body front housing 1100 and a main body rear housing 1200 arranged vertically can be combined with the lower housing 5000 including the lower housing main body 5100, the base front surface part 5300, and the base rear surface part 5400 to form the indoor unit of a floor-standing air conditioner.

[0088] [Air supply fan assembly]

[0089] Figure 71 is a rear perspective view showing the structure of the air supply fan assembly according to an embodiment of the present invention. Figure 8 1 is a perspective view showing the combination of the air supply fan assembly and the shield housing according to an embodiment of the present invention. Figure 9 It will Figure 8 An enlarged cross-sectional view of part "A".

[0090] Figure 10 FIG. 1 is a diagram showing a state in which the air supply fan assembly according to an embodiment of the present invention is open relative to the shroud housing. Figure 11 It will Figure 10 The enlarged view of part "B" Figure 12 It is a front perspective view of an air supply fan assembly according to an embodiment of the present invention.

[0091] Figure 13 1 is a front perspective view of the air supply module cover of the air supply fan assembly according to an embodiment of the present invention. Figure 14 It is along Figure 3 A cross-sectional view taken along line 14-14.

[0092] Reference Figures 7 to 14 The air supply fan assembly 2000 of the embodiment of the present invention is arranged at the rear of the main body front shell 1100. In addition, the air supply fan assembly 2000 is arranged at the front of the main body rear shell 1200.

[0093] The air supply fan assembly 2000 includes an air supply module 2100 for blowing air toward the front of the indoor unit. Preferably, a plurality of air supply modules 2100 are provided. In an embodiment of the present invention, three air supply modules 2100 may be provided.

[0094] Since the indoor unit is a vertical indoor unit formed long in the vertical direction, the air supply module 2100 can be arranged in the vertical direction.

[0095] The air supply module 2100 is disposed in front of the heat exchange assembly 3000 and can discharge the air that has undergone heat exchange in the heat exchange assembly 3000 to the side outlet 2111 provided in the outlet portion 2110. At this time, the flow direction of the flowing air can be changed by the side blade module 2200 disposed at the side outlet 2111.

[0096] A discharge grille 2112 may be provided at the side discharge port 2111 .

[0097] The air supply module portion 2100 of the embodiment of the present invention may include a first air supply module 210 , a second air supply module 220 and a third air supply module 230 .

[0098] The first air supply module 210 can blow air toward the side outlet 2111 .

[0099] The first air supply module 210 includes: a first air supply motor 211, which provides rotational power; a first air supply fan 212, which is connected to the first air supply motor 211; and a first air supply shell 213, which supports the first air supply fan 212 so that it can rotate, and the first air supply shell 213 is arranged on the outside of the first air supply fan 212 to guide the movement of air.

[0100] Part of the air passing through the heat exchanger 3100 of the heat exchange assembly 3000 moves inside the first air supply housing 213. Furthermore, the air discharged outside the first air supply housing 213 by the operation of the first air supply fan 212 can flow toward the side outlet 2111 and be discharged to the outside.

[0101] The first air supply fan 212 may include a centrifugal fan that draws air in an axial direction and discharges air in a radial direction.

[0102] The first blower fan 212 may include a hub 212a coupled to and rotated with the motor shaft of the first blower motor 211. The hub 212a may include a shaft coupling portion 212d coupled to the motor shaft.

[0103] The hub 212 a may have a bowl shape that protrudes rearward to form a space for accommodating the first blower motor 211 .

[0104] The shaft coupling portion 212d is provided at the center of the hub 212a and can be coupled to the motor shaft passing through the hub 212a. The hub 212a and the motor shaft can be firmly coupled by the shaft coupling portion 212d.

[0105] The first air supply fan 212 may further include a plurality of blades 212b, which are spaced apart and arranged along the circumference of the hub 212a. The plurality of blades 212b may be arranged along the circumferential direction. One end of the blade 212b may be coupled to the outer surface of the hub 212a.

[0106] The first blower fan 212 may further include a rim 212c forming a suction-side front end portion of the first blower fan 212. The rim 212c may be arranged slightly further toward the suction side than the hub 212a.

[0107] The rim 212c may form a suction hole 212e for sucking air in. The suction hole 212e defines an inner space of the rim 212c.

[0108] As an example, the rim 212c may have a ring shape.

[0109] The other end of the blade 212b may be coupled to the rim 212c.

[0110] The first blower housing 213 may include a motor support portion 213a supporting the first blower motor 211. The hub 212a may be disposed on an outer surface of the motor support portion 213a.

[0111] The motor support portion 213 a may protrude rearward in a bowl shape to form a space for accommodating the first blower motor 211 .

[0112] The motor support portion 213a may be formed with a through hole 213b through which the motor shaft of the first blower motor 211 passes. The through hole 213b may be formed at the center of the motor support portion 213a.

[0113] The motor shaft of the first blower motor 211 may pass through the motor support portion 213a and be coupled to the hub 212a. The direction in which the motor shaft extends may be defined as the axial direction of the fan.

[0114] The second air supply module 220, located below the first air supply module 210, can blow air toward the side outlet 2111. The second air supply module 220 includes a second air supply motor 221 that provides rotational power; a second air supply fan 222 connected to the second air supply motor 221; and a second air supply housing 223 that rotatably supports the second air supply fan 222. The second air supply housing 223 is disposed outside the second air supply fan 222 to guide the movement of air.

[0115] The second air supply module 220 has the same structure as the first air supply module 210. Therefore, the description of the second air supply module 220 can refer to the content of the first air supply module 210.

[0116] Another portion of the air passing through the heat exchanger 3100 moves inside the second air supply housing 223. Furthermore, the air discharged outside the second air supply housing 223 by the operation of the second air supply fan 222 can flow toward the side discharge port 2111 and be discharged to the outside.

[0117] The third air supply module 230, located below the second air supply module 220, can blow air toward the side outlet 2111. The third air supply module 230 includes a third air supply motor 231 that provides rotational power; a third air supply fan 232 connected to the third air supply motor 231; and a third air supply housing 233 that rotatably supports the third air supply fan 232. The third air supply housing 233 is disposed outside the third air supply fan 232 to guide the movement of air.

[0118] The configuration of the third air supply module 230 is the same as that of the first air supply module 210. Therefore, the description of the third air supply module 230 can refer to the contents of the first air supply module 210.

[0119] Another portion of the air passing through the heat exchanger 3100 moves inside the third air supply housing 233. Furthermore, the air discharged outside the third air supply housing 233 by the operation of the third air supply fan 232 can flow toward the side discharge port 2111 and be discharged to the outside.

[0120] Here, the air supply fans 212 , 222 , and 232 may be centrifugal fans that allow air to flow in the axial direction and discharge it radially through the side discharge ports 2111 .

[0121] Centrifugal fans may have mechanical characteristics of large air volume and high static pressure performance.

[0122] The air supply module portion 2100 may only include the first air supply module 210 and the second air supply module 220 , and various modifications may be implemented as needed, for example, further air supply modules may be provided below the third air supply module 230 .

[0123] The air supply module 2100 according to the embodiment of the present invention may include a partition wall portion 214 , wherein the partition wall portion 214 includes a first partition wall 214 a , a second partition wall 214 b , and a third partition wall 214 c .

[0124] The first partition wall 214a may be formed between the first air supply module 210 and the second air supply module 220 to separate the first air supply module 210 and the second air supply module 220. The first partition wall 214a may be disposed between the first air supply module 210 and the second air supply module 220 in a horizontal direction.

[0125] The first partition wall 214 a may be connected to the corresponding first corresponding partition wall 215 a of the shield housing 2300 , whereby the flowing air may be trapped within the first air supply module 210 .

[0126] Therefore, the air discharged from the first air supply module 210 is blocked from moving to the second air supply module 220, and the air discharged from the second air supply module 220 is blocked from moving to the first air supply module 210, so that the air supply actions of the first air supply module 210 and the second air supply module 220 can be performed independently.

[0127] The second partition wall 214b may be formed between the second air supply module 220 and the third air supply module 230 to separate the second air supply module 220 and the third air supply module 230. The second partition wall 214b may be provided between the second air supply module 220 and the third air supply module 230 in a horizontal direction.

[0128] The second partition wall 214 b may be connected to the corresponding second corresponding partition wall 215 b of the shield housing 2300 , whereby the flowing air may be trapped within the second air supply module 220 .

[0129] Therefore, the air discharged from the second air supply module 220 is blocked from moving to the third air supply module 230, and the air discharged from the third air supply module 230 is blocked from moving to the second air supply module 220, so that the air supply actions of the second air supply module 220 and the third air supply module 230 can be performed independently.

[0130] The third partition wall 214c may be formed at a lower side of the third air supply module 230. The third partition wall 214c may be disposed in a horizontal direction.

[0131] The third partition wall 214 c may be connected to the corresponding third corresponding partition wall 215 c of the shield housing 2300 , whereby the flowing air may be trapped within the third air supply module 230 .

[0132] Therefore, the air discharged from the third air supply module 230 is blocked from moving to the lower side of the third air supply module 230, so that the air supply operation of the third air supply module 230 can be performed independently.

[0133] Such partition wall portions 214 and corresponding partition wall portions 215 may be determined according to the number of air supply module portions 2100 .

[0134] At least one of the partition wall portion 214 and the corresponding partition wall portion 215 may be provided with concave and convex portions 216 , 217 , and 219 that can improve air flow performance.

[0135] The concave-convex portion may include a first concave-convex portion 216 provided on the partition wall portion 214. The first concave-convex portion 216 may reduce friction resistance when the rotating flow generated during the rotation of the air supply fans 212, 222, 232 collides with the partition wall portion 214.

[0136] The partition wall portion 214 includes a setting surface extending obliquely or arcuately along the outer circumference of the rotation path of the air blowing fans 212 , 222 , and 232 , and the first concavo-convex portion 216 may be provided on the setting surface.

[0137] The installation surface may be formed to face the rims 212 c of the air blowing fans 212 , 222 , and 232 .

[0138] The first concave-convex portion 216 may be configured such that convex portions and concave portions are alternately arranged. From another perspective, the first concave-convex portion 216 may include a plurality of grooves formed concavely on the installation surface.

[0139] When the air blowing fans 212 , 222 , and 232 are driven, air flows along the installation surface. When the air flows through the first concave-convex portion 216 , the frictional resistance with the installation surface is reduced, thereby improving the flow performance.

[0140] The first concave-convex portion 216 may be respectively provided on the first to third partition walls 214a, 214b, and 214c corresponding to the first to third air supply modules 210, 220, and 230.

[0141] The concave-convex portion may include a second concave-convex portion 217 provided on the corresponding partition wall portion 215. The second concave-convex portion 217 may reduce friction resistance when the rotating flow generated during the rotation of the air supply fans 212, 222, 232 collides with the corresponding partition wall portion 215.

[0142] The corresponding partition wall portion 215 includes a setting surface extending obliquely or arcuately along the outer circumference of the rotation path of the air supply fan 212 , 222 , 232 , and the second concave-convex portion 217 may be provided on the setting surface.

[0143] The installation surface may be formed to face the rims 212 c of the air blowing fans 212 , 222 , and 232 .

[0144] The second concave-convex portion 217 may be configured such that convex portions and concave portions are alternately arranged. From another perspective, the second concave-convex portion 217 may include a plurality of grooves formed concavely on the installation surface.

[0145] When the air blowing fans 212 , 222 , and 232 are driven, air flows along the installation surface. When the air flows through the second concave-convex portion 217 , the frictional resistance with the installation surface is reduced, thereby improving the flow performance.

[0146] The second concave-convex portion 217 may be provided on the first to third corresponding partition walls 215 a , 215 b , and 215 c , respectively, corresponding to the first to third air supply modules 210 , 220 , and 230 .

[0147] If the air supply module 2100 is rotated to cover the shield housing 1200 and combined with each other, the partition wall 214 and the corresponding partition wall 215 may be in contact with each other, and the first concave-convex portion 216 and the second concave-convex portion 217 may meet each other or be arranged very close to each other.

[0148] Therefore, the first concave-convex portion 216 and the second concave-convex portion 217 may have a shape continuously provided in the front-rear direction. With such a configuration, the area of ​​the concave-convex portion is increased on the outer peripheral side of the air supply fans 212, 222, 232, thereby further reducing friction resistance.

[0149] The concave-convex portion may include a third concave-convex portion 219 provided on the air supply housings 213, 223, and 233. The third concave-convex portion 219 provided on the first to third air supply housings 213, 223, and 233 has the same structure, so they are collectively referred to as air supply housings for description.

[0150] The air supply housing 213 , 223 , 233 may include a first portion forming a rear surface and having a flat surface, and a second portion protruding rearward from the first portion and provided with a motor support portion 213 a .

[0151] The first portion may surround a periphery of the second portion.

[0152] The third concave-convex portion 219 may be provided on the first portion.

[0153] The third concave-convex portion 219 may be formed in an arc shape with a curvature corresponding to the rotation direction of the air blowing fans 212 , 222 , and 232 .

[0154] The third concave-convex portion 219 may be formed in an arc shape with a curvature corresponding to a path of air flow generated by the air blowing fans 212 , 222 , and 232 .

[0155] The third concavo-convex portion 219 may include a rib protruding from the flat surface of the first portion. A plurality of ribs may be provided, and the plurality of ribs may be spaced apart from each other.

[0156] The angles at which the plurality of ribs extend may be different from each other. For example, the angles formed by the plurality of ribs relative to a line extending vertically through the centers of the air-sending fans 212 , 222 , and 232 may be different from each other.

[0157] With this configuration, when the air supply fans 212, 222, 232 rotate to generate airflow, the airflow can be easily directed toward the outlet side of the air supply fans 212, 222, 232. Here, the outlet side direction can be understood as the direction on both sides of the air supply fans 212, 222, 232, that is, the direction in which the side outlets 2111 are formed.

[0158] A shield housing 2300 may be provided in front of the heat exchanger 3100 of the heat exchange assembly 3000 to guide the air passing through the heat exchanger 3100 toward the air supply module 2100 .

[0159] The shield housing 2300 is provided between the outlet side of the heat exchanger 3100 and the inlet side of the air supply module 2100 .

[0160] The shield housing 2300 of the embodiment of the present invention can function to draw the air passing through the heat exchanger 3100 along the axial direction of the fan.

[0161] Since the outlet side of the heat exchanger 3100 and the inlet side of the air supply module 2100 are connected by the shield housing 2300 , the air passing through the heat exchanger 3100 can stably move toward the air supply module 2100 .

[0162] At this time, since the air passing through the heat exchanger 3100 moves along the curved hood casing 2300 , flow separation of the air moving from the heat exchanger 3100 to the inlet side of the air supply module 2100 can be reduced.

[0163] A horizontal base 3110 is provided between the heat exchanger 3100 and the lower housing body 5100. The horizontal base 3110 is located below the air supply module 2100 to prevent the air supply module 2100 from deviating downward.

[0164] A roller bracket 2400 for accommodating a roller (not shown) may be provided at the lower end of the air supply module 2100. The roller rolls in contact with the horizontal base 3110, guiding the air supply module 2100 to rotate smoothly when the air supply module 2100 rotates relative to the shield housing 2300.

[0165] The roller bracket 2400 is rotatably disposed on the upper side of the horizontal base 3110 , and can prevent the air supply module 2110 from deviating downward together with the horizontal base 3110 .

[0166] Furthermore, the shield housing 2300 is provided between the outlet side of the heat exchanger 3100 and the inlet side of the air supply module 2100, thereby preventing pressure loss in the blowing airflow. Furthermore, by reducing eddies generated by flow separation of the blowing airflow inside the upper housings 1100 and 1200, flow noise can be reduced.

[0167] To this end, the shield housing 2300 may include a housing body 2310 and a suction guide 2320 provided on the housing body 2310 and having a suction opening 2321. For example, the housing body 2310 may have a quadrilateral panel shape, and the suction opening 2321 may have a circular shape.

[0168] The suction guide 2320 provides a suction-side passage for the air-supply fans 212 , 222 , and 232 , and therefore may be referred to as an “orifice”.

[0169] The width of the housing body 2310 is slightly greater than the width of the heat exchanger 3100 so as to entirely cover the heat exchanger 3100 , allowing air passing through the heat exchanger 3100 to smoothly flow into the air supply module 2100 .

[0170] The shield housing 2300 is provided between the heat exchanger 3100 and the air supply module 2100 , and forms a guide flow path for guiding the air passing through the heat exchanger 3100 to the inlet side of the air supply module 2100 .

[0171] The housing body 2310 may include a plate portion 2330 forming a circumference of the suction guide portion 2320. The plate portion 2330 may have a flat plate shape connecting the suction guide portion 2320 and the edge of the housing body 2310.

[0172] The plate portion 2330 is connected to the suction guide portion 2320 and is arranged facing the air supply module portion 2100 .

[0173] The suction guide portion 2320 may guide the air passing through the heat exchanger 3100 toward the air supply module 2100 .

[0174] A plurality of intake guides 2320 may be formed corresponding to the air supply module 2100. For example, they may be arranged in a vertical direction. Each intake guide 2320 may be connected to the rear side of the first air supply housing 213, the second air supply housing 223, and the third air supply housing 233, so that air passing through the intake guide 2320 can be transferred to the inner side of the air supply fan assembly 2000 without leakage.

[0175] The suction guide 2320 may include a first suction guide 2321, a second suction guide 2322, and a third suction guide 2323. The first suction guide 2321 may be fluidly connected to the first air supply module 210, the second suction guide 2322 may be fluidly connected to the second air supply module 220, and the third suction guide 2323 may be fluidly connected to the third air supply module 230.

[0176] The first to third suction guides 2321 , 2322 , and 2323 may form circular outlets, but various modifications may be made.

[0177] The first suction guide 2321 , the second suction guide 2322 , and the third suction guide 2323 may each include an edge portion 2325 forming an inner circumferential surface.

[0178] A plurality of edge portions 2325 may be provided corresponding to the number of fans, and the plurality of edge portions 2325 may be provided corresponding to the first to third air supply modules 210 , 220 , and 230 , respectively.

[0179] The edge portion 2325 defines the periphery of the first to third suction guides 2321, 2322, and 2323, respectively, and may form a bell mouth that guides air drawn into the first to third air supply modules 210, 220, and 230. The bell mouth may include an inlet-side end portion of the edge portion 2325 closest to the heat exchanger 3100.

[0180] The edge portion 2325 may include a curved portion having a concave groove shape. The curved portion is disposed adjacent to the first air supply module 210 having a front end protruding rearward, and can block air from leaking outside the shield housing 2300 .

[0181] The plate portion 2330 includes a corresponding partition wall portion 215 facing and contacting the partition wall portion 214 of the air supply module portion 2100. The corresponding partition wall portion 215 includes a first corresponding partition wall 215a, a second corresponding partition wall 215b, and a third corresponding partition wall 215c.

[0182] The first corresponding partition wall 215a may be formed to separate the first and second suction guides. The first corresponding partition wall 215a is disposed horizontally corresponding to the first partition wall 214a, protrudes forward from the boundary between the first and second suction guides, and meets the first partition wall 214a.

[0183] Therefore, the air discharged through the first suction guide is blocked from moving toward the second suction guide, and the air discharged from the second suction guide is blocked from moving toward the first suction guide, so that the air supply operations of the first and second suction guides can be performed independently.

[0184] The second corresponding partition wall 215b may be formed to separate the second suction guide portion and the third suction guide portion. The second corresponding partition wall 215b is arranged horizontally corresponding to the second partition wall 214b, protrudes forward from the boundary between the second suction guide portion and the third suction guide portion, and connects to the second partition wall 214b.

[0185] Therefore, the air discharged through the second suction guide is blocked from moving to the third suction guide, and the air discharged from the third suction guide is blocked from moving to the third suction guide, so that the air supply operations of the second and third suction guides can be performed independently.

[0186] Furthermore, a third corresponding partition wall 215c may be formed below the third suction guide portion. The third corresponding partition wall 215c is disposed horizontally corresponding to the third partition wall 214c, protrudes forward from the below of the third suction guide portion, and connects to the third partition wall 214c.

[0187] Therefore, the air discharged from the third suction guide is blocked from moving to the lower side of the third suction guide, and the air blowing operation of the third suction guide can be performed independently.

[0188] The air supply module 2100 and the shroud housing 2300 may constitute a “fan shroud” that internally accommodates the air supply fans 212 , 222 , and 232 . The fan shroud may form an internal space that accommodates the air supply fans 212 , 222 , and 232 .

[0189] The fan cover may be configured such that the inner space thereof can be opened so that the user can easily access the air supply fans 212 , 222 , and 232 .

[0190] From another perspective, at least one portion of the fan cover can be separated from another portion to open the interior space of the fan cover.

[0191] For example, the air supply module 2100 may be rotated relative to the shield housing 2300 via the hinge 2430 , thereby being opened and closed in the front-to-back direction.

[0192] When the air supply module 2100 is opened at a predetermined angle from the shield housing 2300, the air supply housings 213, 223, 233 and the air supply fans 212, 222, 232 of the air supply module 2100 can be opened to the outside, and the front surface of the shield housing 2300 facing the air supply module 2100 can be opened to the outside. Therefore, the user can thoroughly clean dust and other foreign matter trapped in the separated air supply module 2100 and shield housing 2300.

[0193] When the air supply module 2100 is closed in the shield shell 2300 , that is, when the fan cover is formed, the internal space of the fan cover needs to be sealed to prevent air leakage.

[0194] In detail, the partition wall portion 214 of the air supply module portion 2100 may include a contact surface 283 , and when the air supply module portion 2100 is closed to the shield housing 2300 , the contact surface 283 contacts the corresponding partition wall portion 215 of the shield housing 2300 .

[0195] The contact surface 283 may be formed on the back surface of the partition wall portion 214 .

[0196] The partition wall portion 214 may include a first protruding rib 281 and a second protruding rib 282. The first and second protruding ribs 281 and 282 may protrude rearward from both ends of the partition wall portion 214. For example, the first protruding rib 281 may be provided at the lower end of the partition wall portion 214, and the second protruding rib 282 may be provided at the upper end of the partition wall portion 214.

[0197] A contact surface 283 may be formed between the first and second protruding ribs 281 , 282 .

[0198] First and second protruding ribs 281 and 282 and a contact surface 283 may be formed on each of the first to third partition walls 214 a to 214 c .

[0199] A first guide wall 250 may be provided on the upper side of the first air supply module 210. The first guide wall 250 may protrude rearward from the air supply housing 213 and connect to the upper portion of the shield housing 2300. A groove for coupling the upper hinge 2431 may be formed in the first guide wall 250.

[0200] The first guide wall 250 has substantially the same structure as the first to third partition walls 214a, 214b, and 214c, and can be considered as one component of the partition wall portion 214. For ease of description, the first guide wall 250 may be referred to as a "fourth partition wall."

[0201] A first protruding rib 281 may be provided at a lower end of the first guide wall 250 .

[0202] An air treatment device 260 for treating air passing through the air supply module may be provided at at least one of the first to third partition walls 214 a to 214 c and the first guide wall 250 .

[0203] As an example, the first partition wall 214 a , the second partition wall 214 b , and the second guide wall 250 may be provided with an air treatment device 260 .

[0204] The air treatment device 260 may include a sterilization device for sterilizing the air. For example, the sterilization device may include an ultraviolet lamp that emits ultraviolet light or an ion generating device.

[0205] As another example, a sensor device 260 for detecting the temperature or humidity of the air may be provided on any one of the first and second partition walls provided on both sides of the blower fans 212 , 222 , and 232 .

[0206] The shield housing 2300 may be formed with a placement slot 265 for accommodating the air treatment device 260. The placement slot 265 may be provided at a position where the air treatment device 260 can be inserted when the air supply module 2100 is closed to the shield housing 2300.

[0207] The shield housing 2300 may include a protrusion 285 configured to contact the contact surface 283 of the air supply module 2100 .

[0208] The protrusion 285 is provided on the first to third corresponding partition walls 215a to 215c and the second guide wall 255 . Specifically, it may protrude forward from the front surfaces of the first to third corresponding partition walls 215a to 215c and the second guide wall 255 .

[0209] The second guide wall 255 serves as an upper side wall of the shield housing 2300 and may be disposed in contact with the first guide wall 250 .

[0210] When the air supply module 2100 is closed to the shroud housing 2300, the protrusion 285 can be arranged to contact the contact surface 283 between the first and second protruding ribs 281 and 282. This connection structure (contact structure) can improve the sealing effect between the air supply module 2100 and the shroud housing 2300 that constitute the fan cover.

[0211] On the other hand, discharge portions 2110 are provided on both sides of the air supply module 2100 , and side discharge ports 2111 are formed in the discharge portions 2110 .

[0212] The discharge portion 2110 may be disposed on the side of the air supply fan assembly 2000. Side discharge ports 2111 for discharging the air flowing through the air supply module 2100 to the outside may be formed on both side surfaces of the discharge portion 2110.

[0213] The air supply module 2100 may include an air supply module cover 2101 that forms the overall appearance of the air supply module 2100. The air supply module cover 2101 may be formed in a frame shape with a hollow interior. Multiple components constituting the air supply module 2100 may be mounted within the air supply module cover 2101. As an example, the air supply module cover 2101 may be formed in a rectangular frame shape that is elongated in the vertical direction.

[0214] The air supply module cover 2101 may include: a pair of discharge parts 2110 , respectively vertically arranged on both sides of the air supply module cover 2101 ; and a connecting part 2120 connecting the pair of discharge parts 2110 .

[0215] A pair of discharge portions 2110 can form two side surfaces of the air supply module cover 2101. A side door assembly 2130 can be incorporated into each of the pair of discharge portions 2110. Each of the pair of discharge portions 2110 can be formed into a rectangular panel shape that is elongated in the vertical direction. The pair of discharge portions 2110 can be arranged tilted forward. For example, to improve air flow performance, the pair of discharge portions 2110 can be arranged tilted forward toward each other.

[0216] The discharge portion 2110 may include a side discharge port 2111 for discharging the air sucked from the air blowing fans 212, 222, and 232 to the outside. The side discharge port 2111 may be formed by cutting at least a portion of the discharge portion 2110 in the vertical direction.

[0217] The discharge portion 2110 may be provided with a discharge grille 2112 for forming a flow of discharged air. The discharge grille 2112 may be formed by a plurality of ribs arranged in a lattice shape inside the side discharge port 2111.

[0218] The outlet grille 2112 may include a plurality of vertical ribs and horizontal ribs that separate the side outlets 2111. The plurality of vertical ribs may be arranged to be tilted toward the front and outward. For example, to improve air flow performance, the plurality of vertical ribs may be arranged to be tilted toward the side outlets 2111.

[0219] The discharge portion 2110 may be formed with a first groove 2113, and a side door driving portion ( 2114 ) may be provided to provide a driving force to the side door assembly 2130 . Figure 13 2122) is disposed in the first groove 2113. The side door driving unit 2122 can be disposed inside the first groove 2113. The side door driving unit 2122 is connected to the side door assembly 2130 through the first groove 2113 and can provide a driving force for the side door assembly 2130 to move in the front-rear direction.

[0220] A plurality of first grooves 2113 may be formed at the upper end and the lower end of the spitting portion 2110 .

[0221] The discharge portion 2110 may be formed with a second groove 2114 to guide the door support member ( 2114 ) that moves in the front-rear direction of the side door assembly 2130 . Figure 19 2123) is disposed in the second groove 2114. The door support member 2123 may be disposed inside the second groove 2114. The door support member 2123 is connected to the side door assembly 2130 through the second groove 2114, guiding the front-to-back movement of the side door assembly 2130 and supporting the side door assembly 2130.

[0222] A plurality of second grooves 2114 may be formed to support the load of the side door assembly 2130. The plurality of second grooves 2114 may be spaced apart along the length direction of the discharge portion 2110.

[0223] The connecting portion 2120 connects the pair of discharge portions 2110 and may form the back of the air supply module housing 2101. The connecting portion 2120 may be formed in a rectangular panel shape that is long in the vertical direction. The connecting portion 2120 may be formed in a shape in which at least a portion thereof protrudes rearward.

[0224] Based on the connection portion 2120, a blower motor may be disposed in front of the connection portion 2120, and blower fans 212, 222, and 232 may be disposed behind the connection portion 2120. Therefore, a discharge flow path 2120a may be formed in the space between the pair of discharge portions 2110 and the connection portion 2120, and the discharge flow path 2120a guides the air flowing into the suction opening 2321 toward the side discharge port 2111.

[0225] The connection portion 2120 may include air supply housings 213, 223, 233, which form a motor support portion 213a supporting the air supply motor. A plurality of air supply housings 213, 223, 233 may be formed and spaced apart in the vertical direction.

[0226] The connecting portion 2120 may include blade support ribs 2126 that support the side blade modules 2200. The blade support ribs 2126 may extend forward from the front of the connecting portion 2120. The blade support ribs 2126 may extend vertically. The blade support ribs 2126 may be formed in pairs and disposed on either side of the air supply housings 213, 223, and 233, respectively. A portion of the blade support ribs 2126 may be inserted into the inner side of the side blade modules 2220.

[0227] The air supply module cover 2101 may include a top panel 2140 disposed above the pair of discharge portions 2110 .

[0228] The top panel 2140 may form the top exterior of the air supply fan assembly 2000. The top panel 2140 may be detachably coupled to the upper side of the air supply module 2100. The top panel 2140 may be provided to cover the open top surface of the air supply module 2100. As an example, the top panel 2140 may be formed in a quadrilateral panel shape.

[0229] Considering that the top panel 2140 forms the top appearance of the indoor unit, the top panel 2140 can be understood as a component of the housing assembly 1000.

[0230] Considering that the side door assembly 2130 described later forms the side appearance of the indoor unit, the side door assembly 2130 can be understood as a component of the housing assembly 1000.

[0231] As described above, it can be understood that the housing assembly 1000 includes a plurality of separate components that form the appearance of the indoor unit, namely, the main body front housing 1100, the main body rear housing 1200, the lower housing 5000, the top panel 2140, and the side door assembly 2130. It should be noted that any two or more of the plurality of components may be integrally formed, and any one of the plurality of components may be omitted.

[0232] The discharge portion 2110 located on both sides of the air supply fan assembly 2000 is provided with a side door assembly 2130 for opening and closing the side discharge port 2111. The side door assembly 2130 may be additionally formed on the discharge portion 2110.

[0233] The side door assembly 2130 may be formed in a shape extending from the upper ends of the upper housings 1100 and 1200 of the housing assembly 1000 to the boundary of the lower housing 5000 with a predetermined width.

[0234] The side door assembly 2130 serves to open and close the side outlets 2111 of the outlet portion 2110 formed on both side surfaces of the air-supply fan assembly 2000 .

[0235] The side door assembly 2130 opens the side outlet 2111 when the indoor unit is operating, and closes the side outlet 2111 when the indoor unit is not operating.

[0236] When the indoor unit is in operation, the side door assembly 2130 opens the side outlet 2111 to discharge the air blown from the air supply module 2100 to the outside.

[0237] On the contrary, when the indoor unit is not operating, the side door assembly 2130 closes the side outlet 2111, thereby effectively blocking dust and the like from flowing in through the side outlet 2111 and being fixed inside, or effectively blocking the inflow of foreign matter and the like that may cause malfunction.

[0238] As another operation example, when the indoor unit is operating, any one of the side door assemblies 2130 on both sides can open the side outlet 2111 on one side to discharge air to the outside, while the other side door assembly 2130 can close the other side outlet 2111 to prevent the discharge of air (single-side air outlet mode).

[0239] As an example, one of the one side outlet 2111 and the other side outlet 2111 may be a left side outlet, and the other may be a right side outlet.

[0240] The side door assembly 2130 includes left and right side doors 2121 that move in the front-rear direction to open and close the side outlet 2111 , and a support frame 2124 having guide holes 2125 formed therein to guide the front-rear movement of the side doors 2121 .

[0241] The side door assembly may include a side door driver 2122 for providing driving force to the side door 2121 and a door support member 2123 for supporting each side door 2121 on the discharge portion 2110. The side door driver 2122 and door support member 2123 attached to the side door 2121 and the support frame 2124 may be referred to as a side door module 2120.

[0242] The side door assembly 2130 is supported so as to be movable from a frontmost position where it shields the side outlet 2111 to a rearmost position where it opens the side outlet 2111 .

[0243] Referring to the accompanying drawings, the side door assembly 2130 can extend from the upper end of the upper shell 1100, 1200 of the shell assembly 1000 to the boundary of the lower shell 5000 with a specified width to cover the entirety, and the outer surface of the side door 2121 can have a shape that can form a homogeneous shape with the main body front shell 1100 and the base front part 5300, so as to provide the user with the beauty of the indoor unit and provide a sense of unity between the air supply fan assembly 2000 and the main body back shell 1200.

[0244] Figure 15 It is along Figure 12 The sectional stereogram taken along line 17-17, Figure 16 It is a perspective view of a side door assembly according to an embodiment of the present invention.

[0245] Figure 17 This is a perspective view of a side door assembly according to an embodiment of the present invention being separated into a side door and a support frame. Figure 18 yes Figure 16 Vertical cross-sectional perspective view of .

[0246] Reference Figures 15 to 18 The side door driving unit 2122 may include: a rack 2122a, which is arranged on the inner surface of the support frame 2124; a pinion 2122b, which is engaged with the rack 2122a; and a driving motor 2122c, which provides driving force to the pinion 2122b so that the support frame 2124 can move left and right.

[0247] The rotational force of the pinion 2122b connected to the output shaft of the driving motor 2122c provided in the side door driving part 2122 can be converted into the linear reciprocating motion of the support frame 2124 formed with the rack 2122a.

[0248] The driving motor 2122 c and the pinion gear 2122 b are provided at the discharge portion 2110 , and the rack gear 2122 a gear-coupled with the pinion gear 2122 b may be formed on the inner surface of the support frame 2124 of the side door assembly 2130 .

[0249] Here, the discharge portion 2110 provided with the drive motor 2122 c and the pinion gear 2122 b is not the portion where the side discharge port 2111 is formed, but may be a portion corresponding to the plate-shaped panel portion 2112 located on one side of the side discharge port 2111 .

[0250] One end of the door support member 2123 can be fixed to the discharge part 2110, and the other end can be supported in the support frame 2124 of the side door assembly 2130, so that the side door assembly 2130 is supported on the discharge part 2110 of the air supply fan assembly 2000 to achieve stable opening and closing actions.

[0251] As described above, the side door assembly 2130 may be formed in a shape extending from the upper ends of the upper housings 1100 and 1200 of the housing assembly 1000 to the boundary of the lower housing 5000 with a predetermined width.

[0252] like Figure 15 As shown, the side door 2121 and the support frame 2124 of the side door assembly 2130 are plate-shaped members formed long in the longitudinal direction and are coupled to each other.

[0253] The side door assemblies 2130 are formed to have a vertical length that is much longer than their width. Therefore, it may be difficult to effectively drive each side door assembly 2130 using only a single door support member 2123 and a single side door driving unit 2122 .

[0254] Therefore, two side door driving units 2122 may be provided for each side door assembly 2130. Furthermore, four door support members 2123 may be provided for each side door. In particular, the side door driving units 2122 may be disposed adjacent to the upper and lower ends of each side door assembly 2130.

[0255] On the contrary, the door support members 2123 may be respectively arranged at positions adjacent to the upper end and the lower end of each side door assembly 2130, and two door support members 2123 may be arranged at equal intervals between the upper end and the lower end.

[0256] For example, four door support members 2123 may be arranged at equal intervals along the longitudinal direction of the side door assembly 2130 .

[0257] By using the single side door assembly 2130 , it is possible to prevent in advance the occurrence of coupling deviation of the support frame 2124 with respect to the side door 2121 and position deviation of the door support member 2123 with respect to the support frame 2124 .

[0258] As mentioned above, the side door assembly 2130 is constructed as a component in which the side door 2121 and the support frame 2124 are combined.

[0259] Racks 2122a, which can be gear-coupled with the pinion 2122b, can be formed at the upper and lower ends of the support frame 2124. Furthermore, the support frame 2124 can be formed with a plurality of guide holes 2125 spaced apart along the length thereof, so that the side door assembly 2130 can slide in the front-rear direction when the door support member 2123 is fixed to the discharge portion 2110.

[0260] Figure 19 It is a vertical cross-sectional view of a side door assembly according to an embodiment of the present invention.

[0261] Reference Figure 19One side end of the door support member 2123 supported in the guide hole 2125 of the support frame 2124 can be a vertical portion 2123a, and the other side end of the door support member 2123 connected to the vertical portion 2123a and fixed to the discharge portion 2110 can be a horizontal portion 2123b.

[0262] The vertical portion 2123a is formed to be long in the transverse direction so as to be able to laterally guide the side door assembly 2130. The horizontal portion 2123b may be fixed to the panel portion 2112 of the discharge portion 2110.

[0263] A sliding space may be formed inside the guide hole 2125 of the support frame 2124 so that the support frame 2124 of the side door assembly 2130 can slide along the door support member 2123 .

[0264] In particular, in the sliding space of the guide hole 2125 at the uppermost end of the support frame 2124 , the load of the side door assembly 2130 may be concentrated on the door support member 2123 . That is, the load of the side door assembly 2130 will directly act on the door support member 2123 .

[0265] Therefore, a load supporting portion capable of supporting the load of the side door assembly 2130 may be formed in the sliding spaces of the other guide holes 2125 including the sliding space of the guide hole 2125 located at the uppermost end of the support frame 2124 .

[0266] However, in the embodiment of the present invention, a load supporting portion capable of supporting the load of the side door assembly 2130 may be formed only in the sliding space of the guide hole 2125 located at the uppermost end of the support frame 2124 .

[0267] The sliding space of the guide hole 2125 at the uppermost end of the support frame 2124 includes a support rib 2125a, which is protruded from the inner side surface of the guide hole 2125 entrance side of the support frame 2124 to support the vertical portion 2123a of the door support member 2123 in the joint space between the side door 2121 and the support frame 2124. The support rib 2125a is substantially The shape is supported on the inner side of the support frame 2124, thereby forming a generally inverted "U"-shaped groove 2125b together with the inner side of the support frame 2124. At this time, the remaining support ribs 2125d except the support rib 2125a at the uppermost end can extend in a straight line toward the side door 2121 facing the side.

[0268] Therefore, support rib 2125a can accommodate a portion of vertical portion 2123a at the end of door support member 2123 via inverted U-shaped groove 2125b. In this case, vertical portion 2123a, housed within groove 2125b of support rib 2125a, can be accommodated without a gap. Consequently, vertical portion 2123a is supported between support rib 2125a and the inner side surface of support frame 2124, serving as a load-bearing portion, allowing side door assembly 2130 to slide smoothly in the front-to-back direction.

[0269] The remaining three door support members 2123 of the support frame 2124 can be positioned together with the door support member 2123 at the uppermost end of the support frame 2124. Therefore, the support frame 2124 does not need to have support ribs 2125a. Instead, a fixing rib 2125c can be formed on the inner side surface of the side door 2121 facing the support frame 2124, spaced apart from the vertical portion 2123a of the door support member 2123 by a predetermined gap.

[0270] A gap g may be provided between fixed rib 2125c and vertical portion 2123a to prevent interference between side door assembly 2130 and vertical portion 2123a of door support member 2123 during forward and backward movement. Specifically, movement of door support member 2123 in a direction intersecting its direction of movement is limited by uppermost support rib 2125a, which lacks gap g. Consequently, side door 2121 is prevented from opening outward due to the action of door support member 2123.

[0271] By supporting the door support member 2123 in the guide hole 2125 of the support frame 2124 , the side door assembly 2130 can slide stably, thereby not only not generating operating noise or vibration but also improving the driving balance of the side door assembly 2130 .

[0272] The side door assembly 2130 is the only structure in the indoor unit that operates externally. In particular, the contact portion of the support frame 2124 that contacts the side outlet 2111 may be vulnerable to impact or the like.

[0273] Therefore, both side end portions of the support frame 2124 need to be formed of molded products having high rigidity.

[0274] To this end, the support frame 2124 of the embodiment of the present invention can be formed by gas injection molding.

[0275] A mold having the shape of the support frame 2124 is manufactured, and a mold cavity and a gas injection port are formed at both side ends of the support frame 2124 where strength needs to be increased.

[0276] The mold cavity is filled with raw material and injection molding is performed, and gas injection molding is performed by injecting gas through a gas injection port. As the gas is injected through the gas injection port, the raw material cools and solidifies. At this time, the injected gas can be nitrogen.

[0277] As the thickness of both side ends of the support frame 2124 increases, the strength of the support frame 2124 can be improved. Therefore, damage caused by external impact or the like can be prevented, and the reliability of the product can be improved by increasing the strength.

[0278] Figure 20 is a perspective view showing a side blade module according to an embodiment of the present invention, Figure 21 It is along Figure 12 A cross-sectional view taken along line 16-16.

[0279] Reference Figure 20 and Figure 21 , a side door assembly 2130 and a side blade module 2200 may be provided on one side of the air supply fan assembly 2000 of the embodiment of the present invention.

[0280] The side door assembly 2130 is tilted forward, directing air discharged from the housing assembly 1000 forward. Consequently, the air discharged through the side outlet 2111 is redirected by the side vane module 2200, forming a forward-directed airflow. This forward-directed airflow can be defined as airflow discharged at an effective discharge angle of a predetermined angle relative to the front.

[0281] Specifically, the side door assembly 2130 and the side blade module 2200 may be disposed adjacent to each other on the side outlet 2111 side of the air supply fan assembly 2000 .

[0282] The side door assembly 2130 can be connected to the discharge portion 2110 and open and close the side discharge port 2111. The side door assembly 2130 can move in the front-to-back direction while being coupled to one side of the discharge portion 2110 to open and close the side discharge port 2111. The thickness of the side door assembly 2130 can gradually increase from the rear end toward the front end.

[0283] The side door assembly 2130 may include a side door 2121 that moves in the front-to-back direction to open and close the side outlet 2111 , and a support frame 2124 that is coupled to the side door 2121 to guide the front-to-back movement of the side door 2121 .

[0284] The support frame 2124 may be disposed at a portion of the discharge portion 2110 adjacent to the side discharge port 2111. The support frame 2124 may be moved forward to close the side discharge port 2111, and may be moved backward to open the side discharge port 2111.

[0285] The support frame 2124 may be formed in a thin plate shape and is disposed facing the side discharge port 2111 and is movable in the front-rear direction in parallel with the discharge portion 2110 .

[0286] Protrusions 2124a and 2124b that protrude toward the side door 2121 may be provided at both end portions of the support frame 2124. The protrusions 2124a and 2124b may extend long in the up-down direction along both end edges of the support frame 2124.

[0287] The protrusions 2124 a and 2124 b may include a first protrusion 2124 a protruding from a front end of the support frame 2124 toward the side door 2121 , and a second protrusion 2124 b protruding from a rear end of the support frame 2124 toward the side door 2121 .

[0288] The first protrusion 2124a may protrude from the front end of the support frame 2124 toward the side door 2121 to contact the side door 2121. The protruding length of the first protrusion 2124a may be longer than that of the second protrusion 2124b.

[0289] At this time, the thickness of the first protrusion 2124a in the front-to-back direction increases as it protrudes toward the side door 2121 at the front end of the support frame 2124. That is, the thickness of the portion of the first protrusion 2124a relatively close to the side door 2121 can be thicker than the thickness of the portion relatively far from the side door 2121. As a result, the portion of the first protrusion 2124a facing the air supply housing 213 can be formed with an inclined surface 2124c.

[0290] The inclined surface 2124c can contact the back surface of the air supply housing 213. As an example, the inclined surface 2124c can be formed into a shape that is inclined or curved corresponding to the shape of the back surface of the air supply housing 213. If the support frame 2124 moves forward to close the side outlet 2111, the inclined surface 2124c can contact the back surface of the air supply housing 213.

[0291] The second protrusion 2124b may protrude toward the side door 2121 at the rear end of the support frame 2124 to contact the side door 2121. The protruding length of the second protrusion 2124b may be shorter than that of the first protrusion 2124a.

[0292] The first protrusion 2124a and the second protrusion 2124b may contact the side door 2121 to support the side door 2121. The first protrusion 2124a and the second protrusion 2124b may meet a plane forming an inner side surface of the side door 2121.

[0293] The side door 2121 may be coupled to the outer side of the support frame 2124 and may move in the front-rear direction together with the support frame 2124. The side door 2121 may be disposed at a portion of the discharge portion 2110 adjacent to the side discharge port 2111.

[0294] The side door 2121 may be formed in a shape corresponding to the shape of the support frame 2124. As an example, the side door 2121 may be formed in a thin plate shape.

[0295] However, the width of the side door 2121 corresponding to the length in the front-rear direction may be greater than the width of the support frame 2124. Both side ends of the side door 2121 may surround and be coupled to both side ends of the support frame 2124.

[0296] The side door 2121 may include covers 2121a and 2121b extending from both ends of the side door 2121 toward the support frame 2124 to surround the protrusions 2124a and 2124b of the support frame 2124. The covers 2121a and 2121b may extend vertically along both end edges of the side door 2121.

[0297] The cover parts 2121a, 2121b may include: a first cover part 2121a extending from the front end of the side door 2121 toward the support frame 2124 and surrounding the first protrusion 2124a; and a second cover part 2121b extending from the rear end of the side door 2121 toward the support frame 2124 and surrounding the second protrusion 2124b.

[0298] The first cover portion 2121 a may extend toward the support frame 2124 at the front end of the side door 2121 to cover the outer end portion of the first protrusion 2124 a .

[0299] At this time, the first cover 2121a can extend obliquely from the front end of the side door 2121 toward the air supply housing 213 and contact the back of the air supply housing 213. If the support frame 2124 moves forward to close the side outlet 2111, the first cover 2121a can be in close contact with the back of the air supply housing 213.

[0300] The end of the first cover portion 2121a can be formed in an arcuate shape. For example, the first cover portion 2121a can be formed of an elastically deformable material and can be disposed at the front end of the side door 2121. Therefore, when the side door assembly 2130 moves toward closing, the first cover portion 2121a is in close contact with the back surface of the air supply housing 213, thereby preventing the side door 2121 from being damaged or generating loud noise during the closing process.

[0301] Furthermore, the first cover 2121a can be inserted into the gap between the main body front housing 1100 and the side outlet 2111. Therefore, it is possible to prevent external foreign matter from flowing into the side outlet 2111.

[0302] The second cover portion 2121b can extend from the rear end of the side door 2121 toward the support frame 2124 to cover the outer end of the second protruding portion 2124b. The second cover portion 2121b can be perpendicular to the outer side surface of the second protruding portion 2124b. The protruding length of the second cover portion 2121b can be longer than that of the first cover portion 2121a.

[0303] The side door assembly 2130 may include a side door driving portion 2122 for providing a driving force to the support frame 2124 , and a door support member 2123 for supporting the support frame 2124 on the discharge portion 2110 .

[0304] The side door driving unit 2122 can be provided on one side of the discharge portion 2110 and connected to the support frame 2124. As an example, a portion of the side door driving unit 2122 can be accommodated inside the discharge portion 2110, while another portion can be exposed to the outside of the discharge portion 2110 and connected to the support frame 2124.

[0305] The door support member 2123 may be provided on the other side of the discharge portion 2110 and connected to the support frame 2124 and the side door 2121. A portion of the door support member 2123 may be accommodated inside the discharge portion 2110, while another portion may be exposed to the outside of the discharge portion 2110 and coupled to the support frame 2124 and the side door 2121.

[0306] The side blade module 2200 is provided in front of the air supply housing 213 and can convert the forward-directed airflow discharged through the side outlet 2111 into a sideward-directed airflow. To form the sideward-directed airflow, the side blade module 2200 can move leftward and rightward in front of the air supply housing 213.

[0307] The side blade module 2200 may include: a side blade shell 2210, which is combined with the front of the air supply shell 213; a side blade 2220, which is movably arranged on the inner side of the side blade shell 2210; and a side blade cover 2230, which is combined with the side blade shell 2210 and covers the side blade 2220.

[0308] The side blade module 2200 may remain hidden between the main body front housing 1100 and the air supply fan assembly 2000. The side blade 2220 may be accommodated inside the side blade housing 2210 and the side blade cover 2230 without being exposed to the outside.

[0309] However, when the side blade 2220 is moved in the left-right direction by the blade driving unit 2215, the side blade 2220 can be drawn out through the gap between the side blade housing 2210 and the side blade cover 2230. If the side blade 2220 is drawn out, at least a portion of the side blade 2220 can be moved to a position in front of or adjacent to the side outlet 2111.

[0310] When the side blades 2220 move to the final deployed position, at least a portion of the air discharged through the side outlet 2111 collides with the back of the side blades 2220 and changes its direction of movement. In other words, the air directed forward through the side outlet 2111 collides with the side blades 2220 and changes to a sidewardly directed airflow.

[0311] The side blade module 2200 may include a blade driving portion 2215 that provides a driving force to enable the side blade 2220 to move.

[0312] The blade drive unit 2215 may be coupled to the inner side or back side of the side blade 2220. Furthermore, the blade drive unit 2215 may be mounted and fixed to the inner side or front side of the side blade housing 2210. In other words, the blade drive unit 2215 may be supported by the side blade housing 2210 while coupled to the side blade 2220.

[0313] Figure 22 and Figure 23 1 is a perspective view showing a hinge portion according to an embodiment of the present invention.

[0314] Reference Figure 22 and Figure 23 The air supply module 2100 can be rotated relative to the shield shell 2300 through the hinge portion 2430, so that it can be opened and closed in the front-to-back direction.

[0315] The hinge portion 2430 includes an upper hinge 2431 and a lower hinge 2432. Here, the upper hinge 2431 is located on the upper side of the air supply fan assembly 2000 and the shield housing 2300, and the lower hinge 2432 is located on the lower side of the air supply fan assembly 2000 and the shield housing 2300.

[0316] The main body front housing 1100 and the air supply module 2100 are rotatably connected to the shield housing 2300 via an upper hinge 2431 and a lower hinge 2432 .

[0317] Upper and lower hinge brackets 2440 are provided on one side of the shield housing 2300. One side of the upper hinge 2431 and the lower hinge 2432 are fixed to the upper and lower hinge brackets 2440 via hinge shafts 2433. In this case, bracket installation grooves 2450 may be formed on the upper and lower sides to prevent the upper and lower hinge brackets 2440 from protruding outward from the shield housing 2300.

[0318] A rotation space is formed in the upper and lower hinge brackets 2440 so that the upper hinge 2431 and the lower hinge 2432 can rotate via the hinge shaft 2433 .

[0319] The front and hinge insertion surfaces of the rotation space of the upper and lower hinge brackets 2440 are open, and the bracket setting grooves 2450 of the shield housing 2300 are set at the same height, so that the upper hinge 2431 and the lower hinge 2432 can rotate in the rotation space.

[0320] Each of the upper hinge 2431 and the lower hinge 2432 may be bent so that each end extends in a direction of approximately 90 degrees.

[0321] A shaft insertion hole 2434 is formed on one side of the upper hinge 2431 and the lower hinge 2432, and the hinge shaft 2433 is rotatably inserted into the shaft insertion hole 2434. A connecting member 2435 is formed on the other side of the upper hinge 2431 and the lower hinge 2432, and the connecting member 2435 connects and fixes the first air supply housing 213 and the third air supply housing 233 of the air supply fan assembly 2000.

[0322] The upper hinge 2431 and the lower hinge 2432 may be formed so that, when rotating about the hinge shaft 2433 , a portion of the upper hinge 2431 and the lower hinge 2432 is drawn out from the rotation space of the upper and lower hinge brackets 2440 and exposed or accommodated in the rotation space.

[0323] The main body front housing 1100 and the air supply module 2100 of the air supply fan assembly 2000 can be rotated from the shield housing 2300 via the hinge portion 2430 .

[0324] As shown in the figure, the air supply module 2100 is opened and closed with the hinge 2430 connecting the air supply module 2100 of the air supply fan assembly 2000 and the shield housing 2300 as the center.

[0325] When the air supply module part 2100 is opened at a specified angle from the shield shell 2300, the air supply shell 213, 223, 233 and the air supply fans 212, 222, 232 of the air supply module part 2100 can be opened to the outside, and at the same time, the front of the shield shell 2300 facing the air supply module part 2100 can be opened to the outside.

[0326] Therefore, the user can thoroughly clean foreign matter such as dust collected in the separated air supply module 2100 and the shield housing 2300 .

[0327] [Heat exchange component]

[0328] The heat exchange assembly 3000 can perform heat exchange between the indoor air drawn into the upper casings 1100 and 1200 and the refrigerant.

[0329] The heat exchange assembly 3000 may include a heat exchanger 3100 in which a refrigerant that exchanges heat with indoor air flows, and a refrigerant pipe 3200 forming a refrigerant flow path so that the refrigerant flows into or is discharged from the heat exchanger 3100 .

[0330] The refrigerant pipe 3200 may include a refrigerant inlet pipe 3210 through which refrigerant flowing into the heat exchanger 3100 flows, and a refrigerant outlet pipe 3220 through which refrigerant discharged from the heat exchanger 3100 flows. In this embodiment of the present invention, the refrigerant inlet pipe 3210 or the refrigerant outlet pipe 3220 extends toward the base rear portion 5400 of the lower housing 5000 and may be led to the outside through the refrigerant pipe hole 5401.

[0331] The heat exchanger 3100 is disposed behind the air-sending fan assembly 2000. The heat exchanger 3100 is disposed between the air inlet 1210 and the side outlet 2111, and can perform heat exchange with the air flowing inside the indoor unit.

[0332] The heat exchanger 3100 has a rectangular parallelepiped shape extending in the vertical direction and can be formed to face the housing body 2310 of the shroud housing 2300. The heat exchanger 3100 is disposed between the filter assembly 4000 and the air supply fan assembly 2000. The heat exchanger 3100 can have a length corresponding to the height of the plurality of air supply modules 2100 arranged vertically.

[0333] The heat exchanger 3100 may be disposed inside the main body rear case 1200 .

[0334] The main body rear housing 1200 may have a housing shape with an opening at the front. The main body rear housing 1200 may include a rear portion 1201 forming an air inlet 1210; a first side portion 1202 and a second side portion 1203 forming two side surfaces; and a top portion 1204 forming a top surface.

[0335] The heat exchanger 3100 may be disposed in a space defined by the back surface portion 1201 , the first side surface portion 1202 , the second side surface portion 1203 , and the top surface portion 1204 .

[0336] The heat exchanger 3100 may be fastened and supported by a heat exchanger fastening portion (not shown) formed on the inner side of the main body rear case 1200 .

[0337] [Filter components]

[0338] The filter assembly 4000 of the embodiment of the present invention can remove foreign matter contained in the air flowing into the suction port 1210. The filter assembly 4000 can be detachably mounted behind the main body rear housing 1200. The filter assembly 4000 is disposed at the suction port 1210 formed at the rear of the main body rear housing 1200 and can filter the indoor air flowing into the suction port 1210.

[0339] The filter assembly 4000 includes a filter module 4100 for removing foreign matter from the air sucked into the suction port 1210 . The filter module 4100 of the filter assembly 4000 is disposed at the suction port 1210 .

[0340] The filter module 4100 may include a first filter module 4110 covering the left side of the suction port 1210 of the main body rear case 1200 , and a second filter module 4120 covering the right side of the suction port 1210 of the main body rear case 1200 .

[0341] The filter module 4100 may include: a pre-filter (not shown) for filtering larger dust in the air flowing into the suction port 1210; a dust collecting filter (not shown) for collecting dust from air particles ionized by ionization to filter the air; and a deodorizing filter (not shown) for filtering odors in the air.

[0342] The filter module 4100 may include a filter housing 4200 for mounting a pre-filter. A plurality of suction ports 1210 are formed in the filter housing 4200 along the direction in which the pre-filter is mounted. The surface of the filter housing 4200 where the pre-filter is mounted may include vertical ribs 4220 and horizontal ribs 4230.

[0343] The vertical ribs 4220 and the horizontal ribs 4230 are formed in a lattice shape, thereby increasing the rigidity of the filter case 4200. The pre-filter is formed in a mesh shape, and can filter large foreign matter in the air flowing into the filter module 4100.

[0344] The indoor unit of the air conditioner of the present invention constructed as described above can improve the driving stability of the side door assembly 2130 by minimizing the shaking or bending of the side door assembly 2130 during operation.

[0345] In addition, the present invention can prevent in advance the occurrence of coupling deviation of the support frame 2124 relative to the side door 2121 and position deviation of the door support member 2123 relative to the support frame 2124.

[0346] In addition, the present invention can ensure the rigidity of the side door 2121 against external impact by applying a gas forming mold structure to the side door 2121.

[0347] Furthermore, by ensuring a gap between the door support member 2123 and the support frame 2124, the side door 2121 is prevented from opening outward, thereby improving the durability and driving stability of the side door assembly 2130.

[0348] The above description of the present invention is for illustration only, and those skilled in the art will appreciate that the present invention can be easily modified into other specific forms without changing the technical concept or essential technical features of the present invention. Therefore, it should be understood that the embodiments described above are exemplary in all aspects and not restrictive. It should be interpreted that the scope of the present invention is defined by the claims, and all variations or modifications derived from the meaning and scope of the claims and their equivalents fall within the scope of protection of the present invention.

Claims

1. An indoor unit of an air conditioner, wherein: include: A housing assembly having an air intake port formed on the back of the housing assembly and a side outlet formed on the side of the housing assembly for exhausting air; a heat exchange component, located inside the housing component, and performing heat exchange with the air flowing in through the suction port; an air supply fan assembly, located in front of the heat exchange assembly, and blowing the air passing through the heat exchange assembly toward the side outlet; as well as A side door module, for opening and closing the side outlet; The side door module includes: A side door assembly, comprising a side door and a support frame, wherein the side door opens and closes the side discharge port, and the support frame is combined with the side door and is formed with a guide hole for guiding the front-rear movement of the side door; a door supporting member supported by the supporting frame and supported by the guide hole; and The side door driving unit provides driving force to the side door assembly.

2. The indoor unit of the air conditioner according to claim 1, wherein The air supply fan assembly includes a discharge portion in which the side discharge port is formed.

3. The indoor unit of the air conditioner according to claim 2, wherein: The air supply fan assembly includes: The air supply module cover comprises a pair of discharge parts separated from each other; and The air supply module includes a fan and a fan motor to suck the air passing through the heat exchange component and blow it toward the side outlet.

4. The indoor unit of the air conditioner according to claim 2, wherein One end portion of the door support member supported in the guide hole is a vertical portion; The other end portion of the door support member that is in contact with the vertical portion and fixed to the discharge portion is a horizontal portion.

5. The indoor unit of the air conditioner according to claim 4, wherein The vertical portion of the door support member is formed to be long in the transverse direction so as to be able to guide the side door assembly in the transverse direction; The horizontal portion is fixed to the discharge portion.

6. The indoor unit of the air conditioner according to claim 5, wherein: The door support members are respectively arranged at positions adjacent to the upper end and lower end of the side door assembly, and at least one door support member is arranged between the upper end and lower end of the side door assembly. The plurality of door support members arranged on the side door assembly are arranged at equal intervals.

7. The indoor unit of an air conditioner according to claim 6, wherein: A supporting rib is provided in a coupling space between the supporting frame and the side door, and the supporting rib is supported on an inner side surface of the guiding hole inlet side of the supporting frame to support the vertical portion of the door supporting member.

8. The indoor unit of an air conditioner according to claim 7, wherein: The supporting ribs are formed as shape, so as to form an inverted "U"-shaped groove together with the inner side surface of the support frame.

9. The indoor unit of an air conditioner according to claim 8, wherein: The vertical portion of the door support member is a load-supporting portion that supports the load of the side door assembly. The load-supporting portion is provided at the door support member located at the uppermost end of the support frame.

10. The indoor unit of an air conditioner according to claim 9, wherein The vertical portion of the door support member is received in the groove without any gap.

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