KR102560733B1 - Indoor unit for air conditioner - Google Patents

Abstract

The present invention is a front panel formed with a front discharge port; a door cover inserted into the front discharge port to close the front discharge port; a door cover housing located behind the door cover and disposed on the front panel; a door cover motor disposed between the door cover housing and the door cover, and having a motor shaft disposed in a forward and backward direction; a sun gear coupled to the motor shaft and rotated by the operation of the door cover motor; a plurality of planetary gears disposed outside the sun gear in a radial direction and engaged with the sun gear; a cover guide body disposed between the door cover housing and the door cover and disposed outside the plurality of planetary gears; guide gears formed along an inner circumferential surface of the cover guide and engaged with the plurality of planetary gears arranged on the inner side; a guideway extending along an inner circumferential surface or an outer circumferential surface of the cover guide body; and a cover interference portion disposed on the side of the door cover and movably coupled to the guideway.

Description

Indoor unit for air conditioner}

The present invention relates to an indoor unit of an air conditioner, and more particularly, to an indoor unit of an air conditioner capable of moving a door cover forward and backward to open and close a front discharge port.

The split type air conditioner has an indoor unit disposed indoors and an outdoor unit disposed outdoors, and may cool, heat, or dehumidify indoor air through a refrigerant circulating between the indoor unit and the outdoor unit.

Depending on the installation type, the indoor unit of the separate type air conditioner includes a stand-type indoor unit installed upright on the indoor floor, a wall-mounted indoor unit installed by hanging on an indoor wall, and a ceiling-type indoor unit installed on the indoor ceiling.

In the indoor unit of the conventional split-type air conditioner, since the indoor fan is disposed inside the cabinet, there is a problem in that the air-conditioned air cannot be discharged to a long distance.

In Korean Patent Registration No. 10-1191413, a circulator for flowing air around an indoor unit to a distance is provided.

However, the air circulator described in Korean Patent Registration No. 10-1191413 is installed in an indoor unit, but does not directly flow conditioned air, and provides a function of moving indoor air above the indoor unit to a distance.

Since the air circulator cannot directly flow the conditioned air, there is a problem in that the conditioned air cannot be intensively supplied to the target area, and thus the target area where the temperature imbalance has occurred cannot be selectively conditioned.

Meanwhile, in Korean Patent Publication No. 10-2017-0010293, an opening is formed in a cabinet of an indoor unit, and a door unit opening and closing the opening is disposed. The door unit disclosed in Korean Patent Publication No. 10-2017-0010293 is movable in the forward and backward directions, and blocks the opening when the indoor unit is not operating, and opens the opening by moving the door unit forward when the indoor unit is operating.

However, Korean Patent Publication No. 10-2017-0010293 (hereinafter referred to as Prior Art 1) opens and closes the opening by moving the door unit forward and backward, but since the door unit is positioned in front of the opened opening, there is a problem of obstructing the flow of air discharged through the opening. That is, the opening of the opening by the door unit of Prior Art 1 is not suitable for flowing air over a long distance.

In addition, Korean Patent Publication No. 10-2017-0010293 (hereinafter referred to as Prior Art 2) only advances the door to open the opening, and since the blowing fan is located inside the exterior panel, the air flowed by the blowing fan generates resistance with the structure inside the exterior panel, causing a lot of flow loss to flow air over a long distance.

Meanwhile, Chinese Registered Utility Model 203375535 U (hereinafter referred to as Prior Art 3) discloses a structure capable of rotating an axial flow fan within a predetermined angle range. However, since both sides of the axial flow fan of Prior Art 3 are fixed to the rotation shaft, only rotational motion based on the rotation shaft disposed on both sides of the axial flow fan can be implemented. The prior art 3 has a problem in that the axial fan cannot be rotated in a direction other than provided by the rotating shaft. That is, the prior art 3 has a problem in that it can rotate only in the vertical direction provided with the rotation shaft or only in the left and right directions.

Korean Registered Patent No. 10-1191413 Korean Patent Publication No. 10-2017-0010293 Chinese registered utility model 203375535 U

An object of the present invention is to provide an indoor unit of an air conditioner in which the door cover assembly closes the front discharge port when the remote fan assembly is not operated and the door cover assembly moves out of the front discharge port to open the front discharge port when the remote fan assembly is operated.

An object of the present invention is to provide an indoor unit of an air conditioner in which the door cover assembly closes the front discharge port when the remote fan assembly is not operated and the door cover assembly moves downward to open the front discharge port when the remote fan assembly is operated.

An object of the present invention is to provide an indoor unit of an air conditioner in which a door cover that opens and closes a front discharge port can be moved vertically within a door assembly.

An object of the present invention is to provide an indoor unit of an air conditioner in which a door cover provides a continuous surface with a front panel when a front discharge port is closed.

An object of the present invention is to provide an indoor unit of an air conditioner in which a door cover is positioned inside a door assembly when a front discharge port is opened.

An object of the present invention is to provide an indoor unit of an air conditioner capable of minimizing operating noise when a door cover assembly is moved forward and backward.

An object of the present invention is to provide an indoor unit of an air conditioner capable of minimizing the thickness and weight of a door cover assembly moving a door cover in a forward and backward direction.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

According to the present invention, the door cover disposed at the front discharge port can be moved backward or forward by the operation of the door cover assembly, and the front discharge port can be opened or closed through the backward or forward movement of the door cover.

According to the present invention, when the door cover moves backward, the door cover can be placed inside the moving module installation part, and through this, interference with the front panel can be prevented when the door cover assembly is moved downward.

The present invention is a front panel formed with a front discharge port; a door cover inserted into the front discharge port to close the front discharge port; a door cover housing located behind the door cover and disposed on the front panel; a door cover motor disposed between the door cover housing and the door cover, and having a motor shaft disposed in a forward and backward direction; a sun gear coupled to the motor shaft and rotated by the operation of the door cover motor; a plurality of planetary gears disposed outside the sun gear in a radial direction and engaged with the sun gear; a cover guide body disposed between the door cover housing and the door cover and disposed outside the plurality of planetary gears; guide gears formed along an inner circumferential surface of the cover guide and engaged with the plurality of planetary gears arranged on the inner side; a guideway extending along an inner circumferential surface or an outer circumferential surface of the cover guide body; and a cover interference portion disposed on the side of the door cover and movably coupled to the guideway.

Since the guide way is formed to pass through the cover guide body, a distance from the cover interference portion can be minimized, and an assembly thickness can be minimized when coupled.

Since the cover interference portion is located inside the cover guide body and protrudes radially outward from the cover guide body, mutual coupling between the cover interference portion and the guideway can be prevented from being exposed to the outside.

Since the cover guide body is formed in a ring shape, interference with other structures can be minimized during rotation.

Since the guideway is formed in a helical shape in the forward and backward directions, the forward or backward length can be precisely controlled even when the number of revolutions of the planetary gear is increased.

Since at least two guideways are formed on the cover guide body, the cover interference portion can be prevented from being separated from the guideway even when an external force is applied.

Since the door cover motor is disposed in front of the sun gear and the motor shaft protrudes rearward, the front and rear thickness of the space in which the door cover motor is installed can be minimized.

A motor housing disposed between the door cover and the sun gear, disposed inside the cover guide body, and in which the door cover motor is installed may be further included.

The motor housing may further include a motor penetrating portion through which the door cover motor passes.

The door cover may include an outer door cover forming a continuous surface with the front panel; an inner door cover coupled to a rear surface of the outer door cover; A mover coupled to a rear surface of the inner door cover and protruding rearward from the inner door cover may be further included, the cover interference portion may be formed in the mover, and the mover may be inserted into and positioned inside the cover guide body.

The mover may be formed in a ring shape.

The door cover housing may include a door cover housing body disposed on a rear surface of the front panel; a door cover storage portion disposed on the door cover housing body, open toward the front, and selectively accommodating the door cover when the door cover moves backward; It may include a moving module installation part disposed on the door cover housing body, opened toward the front, and into which the cover guide body is inserted.

The moving module installation unit may include a sun gear installation unit in which the sun gear is rotatably installed; It may further include a planetary gear installation unit in which the planetary gear is rotatably installed.

The moving module installation portion may be formed to be more concave toward the rear than the door cover accommodating portion.

When the door cover moves backward, the front surface of the door cover may be the same as or rearward of the front surface of the door cover housing.

The indoor unit of the air conditioner according to the present invention has one or more of the following effects.

First, the present invention has the advantage that the door cover disposed at the front discharge port can be moved backward or forward by the operation of the door cover assembly, and the front discharge port can be opened or closed through the backward or forward movement of the door cover.

Second, the present invention has an advantage in that the door cover can be placed inside the moving module installation unit when the door cover moves backward, and through this, interference with the front panel can be prevented when the door cover assembly is moved downward.

Third, since the guide way is formed to pass through the cover guide body, there is an advantage in that a distance from the cover interference portion can be minimized and an assembly thickness can be minimized when coupled.

Fourth, since the cover interference portion is located inside the cover guide body and protrudes radially outward from the cover guide body, mutual coupling between the cover interference portion and the guideway can be prevented from being exposed to the outside.

Fifth, since the cover guide body is formed in a ring shape, there is an advantage in minimizing interference with other structures during rotation.

Sixth, since the guideway is formed in a helical shape in the forward and backward directions, there is an advantage in that the forward or backward length can be precisely controlled even when the number of revolutions of the planetary gear is increased.

Seventh, since at least two guideways are formed on the cover guide body, there is an advantage in preventing the cover interference portion from being separated from the guideway even when an external force is applied.

Eighth, since the door cover motor is disposed in front of the sun gear and the motor shaft protrudes rearward, there is an advantage in minimizing the front and rear thickness of the space in which the door cover motor is installed.

Ninth, since the motor housing is disposed between the door cover and the sun gear and the door cover motor is installed in the motor housing, the front and rear thickness of the door cover motor installation space can be minimized.

Tenth, since the door cover motor is installed through the motor housing, there is an advantage of minimizing the front and rear thickness of the installation space of the door cover motor.

1 is a perspective view of an indoor unit for an air conditioner according to an embodiment of the present invention.
FIG. 2 is an exemplary view in which the door cover is reversed in FIG. 1 .
FIG. 3 is an exemplary view in which the door cover assembly in FIG. 2 is lowered.
4 is an exemplary view in which the front discharge port is opened in FIG. 3 .
FIG. 5 is an exemplary view in which the fan housing assembly in FIG. 4 is advanced.
FIG. 6 is an exemplary view in which the steering grill is tilted to the left in FIG. 5 .
FIG. 7 is an exemplary view in which the steering grill is tilted to the right in FIG. 5 .
8 is an exemplary view in which the steering grill is tilted upward in FIG. 5 .
9 is an exemplary view in which the steering grill is tilted downward in FIG. 5 .
10 is an exemplary view in which the steering grill is tilted to the lower right side in FIG. 5 .
11 is an exemplary view in which the steering grill is tilted upward to the left in FIG. 5 .
12 is a right cross-sectional view of the door cover assembly of FIG. 1;
13 is a right cross-sectional view of the door cover assembly of FIG. 2;
FIG. 14 is a right cross-sectional view of the door cover assembly of FIG. 4 .
15 is a right cross-sectional view of the door cover assembly of FIG. 5;
16 is an exploded perspective view illustrating the door assembly of FIG. 1;
17 is a rear view illustrating the door assembly of FIG. 1;
FIG. 18 is a plan cross-sectional view of the door assembly of FIG. 2 .
19 is a front view illustrating the door cover assembly of FIG. 16;
20 is a right side view of the door cover assembly of FIG. 19;
21 is a plan sectional view of the door cover assembly of FIG. 19;
22 is an exploded perspective view of a door cover assembly according to an embodiment of the present invention.
23 is an enlarged top view of the door assembly shown in FIG. 17;
24 is an exemplary view in which the door cover assembly in FIG. 23 is lowered.
25 is an enlarged view of the door housing moving module shown in FIG. 23;
FIG. 26 is a cut-away perspective view showing a coupling structure of the door housing moving module shown in FIG. 18;
FIG. 27 is an enlarged view showing the coupling structure of the door housing moving module shown in FIG. 18;
FIG. 28 is a partially cut-away perspective view of the remote fan assembly shown in FIG. 12 .
29 is a front view of the remote fan assembly shown in FIG. 28;
Fig. 30 is a right side view of Fig. 29;
31 is an exploded perspective view of FIG. 28;
Fig. 32 is an exploded perspective view seen from the rear side of Fig. 31;
33 is an exploded perspective view of the fan housing assembly shown in FIG. 31;
34 is a perspective view of the front fan housing shown in FIG. 33;
Fig. 35 is a front view of Fig. 34;
Fig. 36 is a rear view of Fig. 35;
37 is a perspective view of the guide rail shown in FIG. 31;
38 is a cross-sectional view of the air guide shown in FIG. 31 before operation.
39 is a perspective view of the steering grill shown in FIG. 33;
40 is a front view in which the steering grill is separated from the fan housing assembly of FIG. 31;
41 is a perspective view of the steering base shown in FIG. 33;
Fig. 42 is a rear view of Fig. 41;
43 is an exploded perspective view of the joint assembly shown in FIG. 33;
44 is an exploded perspective view of the rear side of the steering grill and steering assembly shown in FIG. 33;
45 is a rear side perspective view of the hub shown in FIG. 44;
46 is an exploded perspective view of the steering assembly shown in FIG. 33;
47 is an exploded perspective view of the steering assembly seen from the rear side of FIG. 46;
48 is a perspective view showing an assembled state of the steering body and steering motor shown in FIG. 46;
Fig. 49 is a front view of Fig. 48;
50 is a cross-sectional view showing a coupling structure of a steering assembly according to an embodiment of the present invention.
FIG. 51 is an exemplary operation view of the steering assembly shown in FIG. 50 .

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments are provided to complete the disclosure of the present invention and to fully inform those skilled in the art of the scope of the invention to which the present invention belongs, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of an indoor unit for an air conditioner according to an embodiment of the present invention. FIG. 2 is an exemplary view in which the door cover is reversed in FIG. 1 . FIG. 3 is an exemplary view in which the door cover assembly in FIG. 2 is lowered. 4 is an exemplary view in which the front discharge port is opened in FIG. 3 . FIG. 5 is an exemplary view in which the fan housing assembly in FIG. 4 is advanced. FIG. 6 is an exemplary view in which the steering grill is tilted to the left in FIG. 5 . FIG. 7 is an exemplary view in which the steering grill is tilted to the right in FIG. 5 . 8 is an exemplary view in which the steering grill is tilted upward in FIG. 5 . 9 is an exemplary view in which the steering grill is tilted downward in FIG. 5 . 10 is an exemplary view in which the steering grill is tilted to the lower right side in FIG. 5 . 11 is an exemplary view in which the steering grill is tilted upward to the left in FIG. 5 .

The air conditioner according to the present embodiment includes an indoor unit 10 and an outdoor unit (not shown) connected to the indoor unit 10 through a refrigerant pipe and circulating a refrigerant.

The outdoor unit includes a compressor (not shown) that compresses refrigerant, an outdoor heat exchanger (not shown) that receives and condenses the refrigerant from the compressor, an outdoor fan (not shown) that supplies air to the outdoor heat exchanger, and an accumulator (not shown) that supplies only gaseous refrigerant to the compressor after receiving the refrigerant discharged from the indoor unit 10.

The outdoor unit may further include a four-way valve (not shown) to operate the indoor unit in a cooling mode or a heating mode. When operated in the cooling mode, the refrigerant is evaporated in the indoor unit 101 to cool the indoor air. When operated in the heating mode, the indoor unit 10 condenses the refrigerant to heat the indoor air.

<<<Configuration of indoor unit>>>

The indoor unit includes a cabinet assembly 100 having an open front surface, a suction port 101 formed at a rear surface, and an internal space S formed therein, a door assembly 200 assembled to the cabinet assembly 100, having a front discharge port 201 formed therein, covering the front surface of the cabinet assembly 100, and opening and closing the front surface of the cabinet assembly 100, and the inside of the cabinet assembly 100. a fan assembly (300, 400) disposed in the interior space (S) to discharge air into the room; a heat exchange assembly (500) disposed between the fan assembly (300) (400) and the cabinet assembly (100) to exchange heat between the sucked indoor air and the refrigerant; and a filter assembly (500) disposed on the rear surface of the cabinet assembly (100) and filtering the air flowing through the inlet (101). (600).

The indoor unit includes a suction port 101 disposed on a rear surface of the cabinet assembly 100, a side discharge port 301 disposed on a side surface of the cabinet assembly 100, and a front discharge port 201 disposed on a front side of the cabinet assembly 100.

The air sucked in through the intake port 101 is discharged into the room through the front discharge port 201 or the side discharge port 301 .

The inlet 101 is disposed on the rear surface of the cabinet assembly 100 .

The side discharge ports 301 are respectively disposed on the left and right sides of the cabinet assembly 100 .

The front discharge port 201 is disposed on the door assembly 200 . The front discharge port 201 passes through the door assembly 200 .

When viewed from the front, the front discharge port 201 is disposed above the door assembly 100 . This is to flow the air discharged from the front discharge port 201 to a far place in the room. The front discharge port 201 is preferably located above the middle of the door assembly 200 .

In this embodiment, the fan assemblies 300 and 400 are composed of a short distance fan assembly 300 and a long distance fan assembly 400 . Unlike the present embodiment, the short-distance fan assembly 300 may be deleted and only the long-distance fan assembly 400 may be disposed. When the short-distance fan assembly 300 is deleted, the side discharge port 301 is also deleted, and conditioned air can be discharged only through the front discharge port 201 .

The short-distance fan assembly 300 and the long-distance fan assembly 400 are located in front of the heat exchange assembly 500 . In addition, the short-distance fan assembly 300 and the long-distance fan assembly 400 are located in front of the filter assembly 600 . In this embodiment, the heat exchange assembly 500 is disposed in front of the filter assembly 600, and the fan assemblies 300 and 400 are disposed in front of the heat exchange assembly 500.

Therefore, since the air sucked into the local fan assembly 300 and the remote fan assembly 400 passes through the heat exchange assembly 500, the conditioned air flows into the local fan assembly 300 and the remote fan assembly 400.

The heat exchange assembly 500 is disposed inside the cabinet assembly 100, is located in front of the inlet 101, and covers the entire inlet 101.

The inlet 101 is formed on the rear surface of the cabinet assembly 100 and is vertically disposed. The heat exchange assembly 500 covers the entire suction port 101 so that the air sucked through the suction port 101 passes through the heat exchange assembly 500 .

The heat exchange assembly 500 faces the suction port 101 and the rear surface of the cabinet assembly 100 and is disposed vertically.

By arranging the heat exchange assembly 500 vertically, the installation space of the heat exchange assembly 500 can be minimized, and the local fan assembly 300 and the remote fan assembly 400 can be brought into close contact with the front surface of the heat exchange assembly 500.

Adhering the local fan assembly 300 and the remote fan assembly 400 to the front of the heat exchange assembly 500 is also effective in minimizing the internal space of the cabinet assembly 100 .

In particular, since the filter assembly 600, the heat exchange assembly 500, and the fan assemblies 300 and 400 are all vertically arranged and sequentially stacked from the rear to the front, the thickness of the indoor unit in the front-rear direction can be minimized.

When the heat exchange assembly 500 is disposed obliquely in the front-rear direction, when installed inside the cabinet assembly 100, it occupies a larger installation space than when the heat exchange assembly 500 is disposed vertically, and becomes a factor in increasing the thickness of the indoor unit in the front-rear direction.

The short-distance fan assembly 300 and the long-distance fan assembly 400 are manufactured to have a length corresponding to the height of the heat exchange assembly 500 .

The short-distance fan assembly 300 and the long-distance fan assembly 400 may be stacked in a vertical direction. In this embodiment, the remote fan assembly 400 is disposed above the short-distance fan assembly 300 . Since the remote fan assembly 400 is disposed above the short-distance fan assembly 300, the discharged air discharged from the remote fan assembly 400 can flow to a far place in the room.

The short-distance fan assembly 300 discharges air in a lateral direction with respect to the cabinet assembly 100 . The short-distance fan assembly 300 may provide indirect wind to the user. The short-distance fan assembly 300 simultaneously discharges air to the left and right sides of the cabinet assembly 100 .

The remote fan assembly 400 is located above the local fan assembly 300 and is disposed inside the cabinet assembly 100 .

The remote fan assembly 400 discharges air through the front discharge port 201 disposed in the cabinet assembly 100 . The remote fan assembly 300 provides direct wind to the user.

The remote fan assembly 400 discharges air to a remote location. When the remote fan assembly 400 serves only to supply air to a remote location in the room, it may be sufficient to place it above the indoor unit.

The remote fan assembly 400 according to this embodiment can provide direct wind to a target area in the room. The target region may be a region in which a deviation between the target temperature and the room temperature is large. The target area may be an area in which a user or a pet is active.

In order to supply wind directly to the target area, the remote fan assembly 400 is provided with a steering grill 3450 capable of controlling direction.

In this embodiment, the remote fan assembly 400 protrudes out of the cabinet assembly 100 only when operating, and is hidden inside the cabinet assembly 100 when not operating.

When the remote fan assembly 400 is operated, the remote fan assembly 400 passes through the front discharge port 201 of the door assembly 200 and protrudes forward from the door assembly 200 .

When the remote fan assembly 400 protrudes out of the front discharge port 201, interference of direct wind with the door assembly 200 can be minimized. When the remote fan assembly 400 discharges air from inside the cabinet assembly 100, air resistance is generated while passing through the front discharge port 201.

In this embodiment, when direct wind is supplied to the room through the remote fan assembly 400, the steering grill 3450 penetrates the front discharge port 201 and protrudes forward from the cabinet assembly 100 during the configuration of the remote fan assembly 400.

Since only a part of the components of the remote fan assembly 400 (the steering grill in this embodiment) passes through the door assembly 200, the moving distance of the remote fan assembly 400 can be minimized and desired effects can be obtained.

In particular, the remote fan assembly 400 can adjust the angle of the steering grill 3450 protruding out of the front discharge port 201 . The direction the steering grill 3450 faces is not limited to a specific angle or direction.

In a state where the steering grill 3450 protrudes out of the front discharge port 201, it may be disposed toward the upper side, lower side, left side, right side, or any diagonal direction based on the front side of the cabinet assembly 100.

Also, in this embodiment, the remote fan assembly 400 can immediately change the direction of the steering grill 3450 from a first specific direction to an arbitrary second specific direction.

The remote fan assembly 400 may protrude forward from the door assembly 200 through the front discharge port 201 and be positioned. In particular, the steering grill 3450 protrudes forward more than the front surface 200a of the door assembly 200 .

A state in which the steering grill 3450 protrudes more forward than the door assembly 200 is defined as a projection state.

When the steering grill 3450 is in a projection state, the entire steering grill 3450 may protrude out of the front surface of the door assembly 200 . In this embodiment, only the front part of the steering grill 3450 protrudes forward from the front surface 200a of the door assembly 200.

The steering grill 3450 may be tilted in an arbitrary direction in a projection state. When viewed from the front of the cabinet assembly 100, the steering grill 3450 can tilt upward, downward, left, right, or diagonally.

In the projection state, since the steering grill 3450 can be tilted in an arbitrary direction, direct wind can be provided to a target area in the room.

<<Configuration of short distance fan assembly>>

The short-distance fan assembly 300 is configured to discharge air through the side discharge port 301 of the cabinet assembly 100 . The short-distance fan assembly 300 discharges air through the side discharge port 301 and provides indirect wind to the user.

The short-distance fan assembly 300 is disposed in front of the heat exchange assembly 500 . The short-distance fan assembly 300 is installed by stacking a plurality of fans 310 in a vertical direction. In this embodiment, three fans 310 are provided and stacked in a vertical direction.

In this embodiment, the fan 310 is a cross-flow type centrifugal fan. The fan 310 sucks in air in an axial direction and discharges air in a circumferential direction.

The fan 310 sucks in air from the rear and then discharges air in a circumferential direction, and the air discharged in the circumferential direction flows toward the front.

The short-distance fan assembly 300 is formed with front and rear openings, and includes a fan casing 320 coupled to the cabinet assembly 100, and a plurality of fans 310 coupled to the fan casing 320 and disposed inside the fan casing 320.

The fan casing 320 is manufactured in a box shape with open front and rear surfaces. The fan casing 320 is coupled to the cabinet assembly 100 .

The front of the fan casing 320 is disposed to face the door assembly 200 . The rear surface of the fan casing 320 faces the heat exchange assembly 500 .

The front of the fan casing 320 is closed by being in close contact with the door assembly 200 .

In this embodiment, a portion of the side surface of the fan casing 320 is exposed to the outside. A side discharge port 301 is formed in the fan casing 320 exposed to the outside. A discharge vane capable of controlling the discharge direction of air is disposed in the side discharge port 302 . The side discharge ports 301 are disposed on the left and right sides of the fan casing 320, respectively.

The fan 310 is disposed inside the fan casing 320 . A plurality of the fans 310 are disposed on the same plane and stacked in a row in the vertical direction.

Since the fan 310 is a cross-flow type centrifugal fan, air is sucked in from the rear surface of the fan casing 320 and then air is discharged in the front circumferential direction.

12 is a right cross-sectional view of the door cover assembly of FIG. 1; 13 is a right cross-sectional view of the door cover assembly of FIG. 2; FIG. 14 is a right cross-sectional view of the door cover assembly of FIG. 4 . 15 is a right cross-sectional view of the door cover assembly of FIG. 5; 16 is an exploded perspective view illustrating the door assembly of FIG. 1; 17 is a rear view illustrating the door assembly of FIG. 1; FIG. 18 is a plan cross-sectional view of the door assembly of FIG. 2 . 19 is a front view illustrating the door cover assembly of FIG. 16; 20 is a right side view of the door cover assembly of FIG. 19; 21 is a plan sectional view of the door cover assembly of FIG. 19; 22 is an exploded perspective view of a door cover assembly according to an embodiment of the present invention. 23 is an enlarged top view of the door assembly shown in FIG. 17; 24 is an exemplary view in which the door cover assembly in FIG. 23 is lowered. 25 is an enlarged view of the door housing moving module shown in FIG. 23; FIG. 26 is a cut-away perspective view showing a coupling structure of the door housing moving module shown in FIG. 18; FIG. 27 is an enlarged view showing the coupling structure of the door housing moving module shown in FIG. 18;

<<<Composition of door assembly>>>

The door assembly 200 includes a front panel 210 having a front discharge port 201, a panel module 1100 having a panel discharge port 1101 coupled to the rear surface of the front panel 210 and communicating with the front discharge port 201, and a door cover disposed on the panel module 1100 and opening and closing the panel discharge port 1101 and the front discharge port 201. assembly 1200, a door slide module 1300 disposed on the panel module 1100 and moving the panel module 1100 in the left and right directions with respect to the cabinet assembly 100, a camera module 1900 disposed above the panel module 1100 and capturing an indoor image, an upper end assembled to be relatively rotatable with the door cover assembly 1200, and a lower end assembled to the panel module assembly 1 100) and a cable guide 1800 in which a cable connected to the door cover assembly 1200 is accommodated.

The front discharge port 201 is disposed on the front panel 210 and opens in the front and rear directions. The panel outlet 1101 is disposed in the panel module 1100 and is opened in the forward and backward directions.

The front discharge port 201 and the panel discharge port 1101 have the same area and shape. The front discharge port 201 is located in front of the panel discharge port 1101.

The door assembly 200 further includes a display module 1500 installed on the panel module 1100 and visually providing information on the indoor unit to the front panel 210 .

The display module 1500 is disposed on the rear surface of the front panel 1100 and can pass through the front panel 1100 to provide visual information to the user.

Unlike this, a portion of the display module 1500 is exposed through the front panel 1100, and visual information can be provided to the user through the exposed display.

In this embodiment, information of the display module 1500 is transmitted to the user through the display opening 202 formed on the front panel 210 .

<<Composition of the front panel>>

The front panel 210 is disposed on the front side of the indoor unit. The front panel 210 includes a front panel body 212, a front discharge port 201 opened in the front-back direction of the front panel body 212, a display opening 202 opened in the front-back direction of the front panel body 212, a first front panel side 214 disposed on the left side of the front panel body 212 and covering the left side of the panel module 1100, and the front panel body A second front panel side 216 is disposed on the right side of 212, is disposed on the right side of the front panel body 212, and covers the right side of the panel module 1100.

The front panel 210 has a very long up and down transition compared to the left and right width. In this embodiment, the upper and lower lengths are more than three times greater than the left and right widths of the front panel 210 . Also, the front and rear thickness of the front panel 210 is very thin compared to the left and right widths. In this embodiment, the front and back thickness is less than 1/4 of the left and right width of the front panel 210 .

In this embodiment, the display opening 202 is located below the front discharge port 201 . Unlike the present embodiment, the display opening 202 may be positioned above the front discharge port 201 .

The front discharge port 201 and the display opening 202 are arranged in a vertical direction. A virtual center line C connecting the center of the front discharge port 201 and the center of the display opening 202 is vertically arranged. The front panel 210 is symmetrical with respect to the center line (C).

A camera 1950 of the camera module 1900 is disposed on the center line C.

The front discharge port 201 is formed in a circular shape. The shape of the front discharge port 201 corresponds to the front shape of the discharge grill 450. The discharge grill 450 hidden inside the cabinet assembly 100 is exposed to the outside through the front discharge port 201 .

In this embodiment, the front discharge port 201 is not simply selectively opened to expose the discharge grill 450, but the discharge grill 450 penetrates the front discharge port 201 and protrudes forward from the front panel 210.

When the discharge grill 450 protrudes forward from the front panel 210, interference between the air passing through the discharge grill 450 and the front panel 210 can be minimized, and the discharge air can flow farther.

The first front panel side 214 protrudes rearward from the left edge of the front panel body 212 and covers the left side of the panel module 1100 fixed to the rear surface of the front panel body 212 .

The second front panel side 216 protrudes rearward from the right edge of the front panel body 212 and covers the right side of the panel module 1100 fixed to the rear surface of the front panel body 212 .

The first front panel side 214 and the second front panel side 216 block side surfaces of the panel module 1100 from being exposed to the outside.

A first front panel end 215 protruding from the rear end of the first front panel side 214 toward the second front panel side 216 is further disposed. A second front panel end 217 protruding from the rear end of the second front panel side 216 toward the first front panel side 214 is further disposed.

The first front panel end 215 and the second front panel end 217 are located on the rear surface of the panel module 1100 . That is, the panel module 1100 is located between the front panel body 212 and the front panel ends 215 and 217 .

In this embodiment, the distance between the front panel body 212 and the front panel ends 215 and 217 is defined as the internal distance (I) of the front panel. The inner distance (I) is shorter than the front and rear thickness of the front panel 210 .

The first front panel end 215 and the second front panel end 217 are disposed to face each other and are spaced apart from each other. In this embodiment, the distance between the first front panel end 215 and the second front panel end 217 is defined as the opening distance D of the front panel. The opening interval (D) of the front panel 210 is shorter than the left-right width (W) of the front panel 210 .

In this embodiment, the front panel body 212 and the front panel ends 215 and 217 are arranged in parallel. The front panel body 212 and the front panel sides 214 and 216 intersect, and in this embodiment are orthogonal. The front panel sides 214 and 216 are disposed in the front-back direction.

In this embodiment, the front panel body 212, the front panel sides 214 and 216, and the front panel ends 215 and 217 constituting the front panel 210 are integrally manufactured.

In this embodiment, the entire front panel 210 is made of a metal material. In particular, the entire front panel 210 is made of aluminum.

Thus, the front panel sides 214 and 216 are bent from the front panel body 212 to the rear side, and the front panel ends 215 and 217 are bent from the front panel sides 214 and 216 to the opposite side.

In order to easily bend the entire front panel 210 formed of a metal material, a first bending groove (not shown) may be formed at a bent portion between the front panel body 212 and the first front panel side 214, and a second bending groove 213a may be formed at a bent portion between the front panel body 212 and the second front panel side 216.

A third bending groove (not shown) may be formed at a bent portion between the first front panel side 214 and the first front panel end 215, and a fourth bending groove 213b may be formed at a bent portion between the second front panel side 216 and the second front panel end 217.

Each of the bending grooves may be formed to extend long in the vertical direction of the front panel 210 . Preferably, each of the bending grooves is located inside the bent portion. If the first and second bending grooves 213a are not formed, it is difficult to form a right angle between the front panel body 212 and the front panel side. In addition, when the first and second bending grooves 213a are not formed, the front panel body 212 and the bent portion of the front panel side are not formed flat, and may protrude or change in an arbitrary direction during the bending process. The third and fourth bending grooves 213b also perform the same function as the first and second bending grooves 213a.

A panel upper opening 203 and a panel lower opening 204 are respectively formed on the upper side of the front panel 210 manufactured as described above. In this embodiment, since the front panel 210 is manufactured by bending a single metal plate, the panel upper opening 203 and the panel lower opening 204 are formed in the same area and shape.

The thickness of the panel module 1100 is equal to or smaller than the distance between the front panel body 212 and the front panel ends 215 and 217 . The panel module 1100 may be inserted through the panel upper opening 203 or the panel lower opening 204 . The panel module 1100 may be fixed by a fastening member (not shown) passing through the front panel ends 215 and 217 .

The camera module 1900 is inserted into the panel upper opening 203 and positioned above the panel module 1100 . The camera module 1900 may close the panel upper opening 203 .

The camera module 1900 is located above the front discharge port 201 and is disposed on the rear surface of the front panel 210 . The camera module 1900 is concealed by the front panel 210 . The camera module 1900 is exposed to the upper side of the front panel 210 only when operating, and is hidden behind the front panel 210 when not operating.

The front panel ends 215 and 217 surround the side and rear surfaces of the camera module 1900, and fastening members (not shown) pass through the front panel ends 215 and 217 and are fastened to the camera module 1900.

In this embodiment, the left and right widths of the panel upper opening 203 and the left and right widths of the camera module 1900 are equal. In addition, in this embodiment, the left and right widths of the panel upper opening 203 and the left and right widths of the panel module 1100 are formed to be the same.

In this embodiment, the front and back thickness of the panel upper opening 203 and the front and back thickness of the camera module 1900 are formed to be the same. Also, in this embodiment, the front and rear thicknesses of the panel upper opening 203 and the front and rear thicknesses of the panel module 1100 are formed to be the same.

Therefore, the camera module 1900 and the panel module 1100 are positioned between the front panel body 212 and the front panel ends 215 and 217, and can be supported by the front panel body 212 and the front panel ends 215 and 217.

<<Structure of panel module>>

The panel module 1100 is composed of an upper panel module 1110 and a lower panel module 1120. Unlike the present embodiment, the upper panel module 1110 and the lower panel module 1120 may be manufactured as one. Since the upper and lower lengths of the front panel 210 are much longer than the left and right widths of the front panel 210 in this embodiment, when the panel module 1100 is manufactured as a single part, there is a restriction in inserting the panel module 1100 through the panel upper opening 203 or the panel lower opening 204 of the front panel 210.

In this embodiment, the panel 1100 is made of two parts, an upper panel module 1110 and a lower panel module 1120, the upper panel module 1110 is inserted into the front panel 210 through the panel upper opening 203, and the lower panel module 1120 is inserted into the front panel 210 through the panel lower opening 204.

When manufactured in two parts, there is an advantage in that repair and replacement of the upper panel module 1110 or the lower panel module 1120 is easy. The integrated upper panel module 1110 and lower panel module 1120 suppress distortion of the front panel 210 and provide rigidity against an external force.

For example, when the door cover assembly 1200 needs to be replaced, only the upper panel module 1110 needs to be separated, and when the door slide module 1300 needs to be replaced, only the lower panel module 1120 needs to be replaced.

The upper panel module 1110 and the lower panel module 1120 are inserted into the inner gap I of the front panel 210, support the front panel 210, and prevent deformation and bending of the front panel 210.

In this embodiment, the upper panel module 1110 and the lower panel module 1120 are made of injection molding. The upper panel module 1110 and the lower panel module 1120 made of injection molding are in contact with the front panel body 212, each front panel side 214, 216, and each front panel end 215, 217.

Since the upper panel module 1110 and the lower panel module 1120 support the front panel body 212, each of the front panel sides 214 and 216, and each of the front panel ends 215 and 217, bending deformation of the front panel 210 formed of a metal material can be suppressed.

In this embodiment, the upper panel module 1110 and the lower panel module 1120 support the entire surface of the first front panel side 214 and the second front panel side 216 to which external shocks are frequently applied.

In order to reduce the overall load of the door assembly 200, the upper panel module 1110 and the lower panel module 1120 support only a partial area of the front panel body 212, not the entire surface. That is, the upper panel module 1110 and the lower panel module 1120 form a plurality of curves in the front-back direction, and support a portion of the rear surface of the front panel body 212 .

<Configuration of upper panel module>

The upper panel module 1110 includes an upper panel body 1130 disposed on the rear surface of the front panel 210, and a panel discharge port 1101 formed to pass through the upper panel body 1130 in the front-back direction, located behind the front discharge port 201, and communicating with the front discharge port 201.

The panel discharge port 1101 corresponds to the front discharge port 201 . In this embodiment, both the panel discharge port 1101 and the front discharge port 201 are formed in a circular shape. A gasket 205 may be disposed between the panel discharge port 1101 and the front discharge port 201 to prevent discharge air from leaking.

The gasket 205 is disposed along the inner surface of the front discharge port 201, and the upper panel module 1110 adheres to the gasket 205. The panel outlet 1101 is located on the rear surface of the gasket 205 .

The area of the panel discharge port 1101 is equal to or larger than the area of the front discharge port 201 . In this embodiment, considering the installation structure of the gasket 205, the panel discharge port 1101 is formed to have a larger diameter than the front discharge port 201. The gasket 205 adheres to the inner surface of the front discharge port 201 and the inner surface of the panel discharge port 1101, and seals the gap between the upper panel module 1110 and the front panel 210.

The discharge grill 450 of the remote fan assembly 400 passes through the panel discharge port 1101 and the front discharge port 201 in order and protrudes forward from the front surface of the front panel 210 .

When the discharge grill 450 protrudes to the outside, the front side end of the fan housing 430 of the remote fan assembly 400 may come into close contact with the gasket 205 . When the front end of the fan housing 430 comes into close contact with the gasket 205 , air flowing inside the fan housing 430 may be prevented from leaking into the door assembly 200 .

When the air discharged from the remote fan assembly 400 leaks into the door assembly 200 , condensation may occur inside the door assembly 200 .

In particular, since the front panel 210 is made of a metal material, the discharge air leaking into the door assembly 200 during cooling cools the area around the front discharge port 201 and causes a large amount of dew to form around the front discharge port 201.

Meanwhile, in this embodiment, the door cover assembly 1200 and the display module 1500 are installed on the upper panel module 1110.

Both the door cover assembly 1200 and the display module 1500 are positioned within the thickness of the front panel 210 in a state of being assembled to the upper panel module 1110 .

To this end, the display installation unit 1113 is disposed in the upper panel module 1110, and the display module 1500 is installed in the display installation unit 1113. Protrusion of the display module 1500 forward from the upper panel body 1130 through the display installation unit 1113 is minimized.

The display installation part 1113 may be disposed to pass through the upper panel module 1110 in the front-back direction.

A part of the display module 1500 is exposed to the outside through the display opening 202 of the front panel 210 in a state of being assembled to the upper panel module 1110 . In a state where the display module 1500 is exposed to the outside through the display opening 202 , the display 1510 of the display module 1500 forms a continuous surface with the front surface of the front panel 210 .

That is, the front surface of the display 1510 of the display module 1500 does not protrude forward from the front panel 210 and forms a continuous plane with the front surface of the front panel 210 .

The display module 1500 transmits and receives power and electrical signals through a cable passing through the upper panel module 1110 .

The door cover assembly 1200 is disposed on the rear surface of the upper panel module 1110 and can move vertically along the rear surface of the upper panel module 1110 .

When the door cover assembly 1200 moves downward after opening the front discharge port 201, the door cover assembly 1200 may be located at the same height as the display module 1500.

The door cover assembly 1200 is not coupled to the panel module 1100. The door cover assembly 1200 is movable in a vertical direction with respect to the panel module 1100 .

In this embodiment, the upper panel module 1110 and the lower panel module 1120 are stacked in the vertical direction. In particular, since the upper panel module 1110 and the lower panel module 1120 are mutually assembled inside the front panel 210, shaking or operating noise when the door assembly 200 slides is minimized.

To this end, the upper panel module 1110 and the lower panel module 1120 may be assembled in an interference fit form. One of the upper panel module 1110 and the lower panel module 1120 has a panel protrusion protruding toward the other side, and the other has a panel fitting portion accommodating the protruding fitting portion.

In this embodiment, the panel protrusion 1113 is formed on the upper panel module 1110. The panel protrusion 1113 protrudes downward from the lower surface of the upper panel body 1130 .

A panel fitting part 1123 is formed in the lower panel module 1120 to accommodate the panel protruding part 1113 and to be assembled with the panel protruding part 1113 in an interference fit form.

The panel fitting part 1123 is formed on the upper side of the lower panel module 1120 .

<Configuration of lower panel module>

The lower panel module 1120 is installed on the rear surface of the front panel 210 . The lower panel module 1120 is installed within the inner gap I of the front panel 210 . The lower panel module 1120 is positioned below the upper panel module 1110, supports the upper panel module 1110, and is assembled with the upper panel module 1110.

The lower panel module 1120 is installed inside the front panel 210 to prevent deformation of the front panel 210 . The lower panel module 1120 is coupled to the upper panel module 1110 in an interference fit manner, and supports the upper panel module 1110 from the lower side.

The lower panel module 1120 includes a lower panel body 1122 assembled to the front panel 210 . A panel fitting part 1123 mutually fitted with the panel protruding part 1113 is formed in the upper panel module 1110 on the upper side of the lower panel body 1122 . The panel fitting part 1123 is formed concave downward.

The driving unit of the door slide module 1300 is installed in the lower panel module 1120.

The lower panel module 1120 is fixed to the front panel 210 by fastening members (not shown) passing through the first front panel end 215 and the second front end 217 , respectively.

Since the fastening members for fixing the upper panel module 1110 and the lower panel module 1120 are located on the rear surfaces of the first front panel end 215 and the second front end 217, the fastening structure of the door assembly 200 is not exposed to the outside and is hidden.

In particular, on the outer surface of the front panel 210 formed of a metal material, the fastening member or fastening hole is not exposed and is hidden.

<<Composition of door cover assembly>>

The door cover assembly 1200 is configured to open and close the front discharge port 201 disposed in the door assembly 200 .

The door cover assembly 1200 opens the front discharge port 201 to expand the movement path of the remote fan assembly 400 . The remote fan assembly 400 may protrude out of the door assembly 200 through the open front discharge port 201 .

The door cover assembly 1200 is located on the movement path of the remote fan assembly 400, and moves out of the movement path of the remote fan assembly 400 when the front discharge port 201 is opened.

The door cover assembly 1200 includes a door cover 1210 disposed at the front discharge port 201 and moved in the front and rear directions of the front discharge port 201 to open and close the front discharge port 201, a door cover housing 1220 located at the rear of the door cover 1210 and disposed at the door assembly 200, and installed in the door cover housing 1220. and a door cover moving module 1600 positioned between the door cover housing 1220 and the door cover 1210, assembled on the rear surface of the door cover 1210, and moving the door cover 1210 in the forward and backward directions, and a door cover disposed on any one of the door cover housing 1220 and the door assembly 200 and moving the door cover housing 1220 in the vertical direction. It includes a moving module 1700.

The door cover 1210 is inserted into the front discharge port 201 and provides a continuous surface with the front panel 210 . By the operation of the door cover moving module 1600, the door cover 1210 can be moved backward. After the door cover 1210 is separated from the front discharge port 201, the entire door cover assembly 1200 may be moved downward by operating the door housing moving module 1700.

When the door cover 1210 is moved downward by the door housing moving module 1700, the front discharge port 201 is opened in the forward and backward directions.

For convenience of description, a state in which the door cover 1210 is moved backward from the front discharge port 201 by the door cover moving module 1600 and the front panel 210 and the door cover 1210 are spaced apart in the front-back direction is defined as first front opening.

In the first front opening, the remote fan assembly 400 is covered by the door cover 1210 and is not exposed to the user. During the first front opening, the air inside the cabinet can be discharged into the room through the gap between the door cover 1210 and the front panel 210 .

In the first front opening, the remote fan assembly 400 is positioned behind the door cover 1210 . In the first front opening, the door cover 1210 is located rearward than the front panel body 212 .

The door cover 1210 is moved from the rear of the front discharge port 201 to the lower side of the front discharge port 201 by the door housing moving module 1700, and the front discharge port 201 is not covered by the door cover 1210. The state is defined as the second front opening.

In the second front opening, the door cover 1210 is positioned below the front discharge port 201 and the remote fan assembly 400 . In the second front opening, the door cover 1210 is positioned rearward than the front panel body 212 .

In the second front opening, the remote fan assembly 400 is exposed to the user through the front discharge port 201. When the second front opening is performed, the remote fan assembly 400 moves forward and protrudes out of the front discharge port 201, and discharges air toward the room in a state where the remote fan assembly 400 protrudes out of the front panel 210.

In the second front opening, at least one of the door cover housing 1220 and the door cover 1210 is positioned behind the display 1500 . During the second front opening, even if the door cover 1210 moves downward, it does not interfere with the display 1500. When the second front opening is performed, the door cover 1210 and the rear surface of the display 1500 are separated by a predetermined interval.

That is, when the first front opening is performed, the door cover 1210 must be moved rearward by a greater thickness than the front panel 210 to prevent interference between the door cover 1210 and the display 1500 during the second front opening operation.

The door cover 1210 includes an outer door cover 1212 that forms a continuous surface with the front panel 210, an inner door cover 1214 coupled to the rear surface of the outer door cover 1212, assembled with the door cover moving module 1600, and moved in the forward and backward directions by the driving force of the door cover moving module 1600, and disposed on the inner door cover 1214. and a mover 1230 that protrudes rearward from the inner door cover 1214, receives driving force from the door cover moving module 1600 through mutual interference with the door cover moving module 1600, and receives driving force necessary for forward or backward movement of the inner door cover 1214 by the mutual interference.

The mover 1230 is assembled with the cover guide 1640 of the door cover moving module 1600 to be described later. The mover 1230 interferes with each other when the cover guide 1640 rotates, and moves the door cover 1210 coupled with the mover 1230 forward or backward.

The outer door cover 1212 has the same area and shape as the front discharge port 201 .

The inner door cover 1214 is not limited to the area or shape of the front discharge port 201. In this embodiment, the inner door cover 1214 is formed wider than the outer door cover 1212.

So, when the outer door cover 1212 is inserted into the front discharge port 201, the inner door cover 1214 adheres to the edge of the front discharge port 201.

In this embodiment, the front discharge port 201 and the outer door cover 1212 are formed in circular shapes having the same diameter and shape, and the inner door cover 1214 is formed in a larger circular shape than the front discharge port 201 . In particular, the outer edge of the inner door cover 1214 is formed flat in the vertical direction and covers the boundary between the front discharge port 201 and the outer door cover 1212 .

The outer door cover 1212 may be formed of the same material as the front panel 210 . The outer door cover 1212 may be entirely formed of an aluminum metal material. Only the front surface of the outer door cover 1212 may be coated with a metal material. When only the front surface is coated with a metal material, the load of the door cover 1210 can be reduced, and the operating load of the door cover moving module 1600 and the door housing moving module 1700 can be reduced.

The outer door cover 1212 is formed to have the same thickness as the front panel body 212, and when inserted into the front discharge port 201, may form a continuous surface with the front and rear surfaces of the front panel body 212.

The inner door cover 1214 is in close contact with the rear surface of the outer door cover 1212, is coupled to the rear surface of the outer door cover 1212, and is formed wider than the diameter of the outer door cover 1212.

The center of the inner door cover 1214 and the center of the outer door cover 1212 coincide.

In this embodiment, the inner door cover 1214 is formed in a disk shape. Unlike the present embodiment, the inner door cover 1214 may be formed in a ring shape formed in a space in the center.

The inner door cover 1214 includes a core door cover 1215 located at the center and in close contact with the rear surface of the outer door cover 1212, a border door cover 1216 located outside the core door cover 1215 in a radial direction and in close contact with the outer edge of the outer door cover 1212, and the core door cover 1215 and the border door cover 1216. ) and a connect door cover 1217 spaced apart from the outer door cover 1212 to form a space 1119, and a connect live 1218 that connects the core door cover 1215, the connect door cover 1217, and the border door cover 1216, and protrudes from the connect door cover 1217 toward the outer door cover 1212. do

The connective 1218 is disposed radially outward from the center of the inner door cover 1214 . A plurality of connectives 1218 are disposed, and are disposed at an equal angle with respect to the center of the inner door cover 1214 .

A front surface of the connective 118 may adhere to a rear surface of the outer door 1212 . The rear surface of the connect live 1218 is integrally manufactured with the connect door cover 1217. The inner surface of the connective 1218 is connected to the core door cover 1215 and the outer surface is connected to the border door cover 116 .

The space 1119 is formed between the core door cover 1215, the border door cover 1216, and the plurality of connectives 1218.

A plurality of spaces 1119 are radially arranged based on the center of the inner door cover 1214, and the plurality of spaces 1119 are arranged at equal angles. Due to the structure of the connective 1218 and the space 1119, the rigidity of the inner door cover 1214 is improved.

The core door cover 1215 is formed in a circular shape when viewed from the front, and the border door cover 1216 is formed in a ring shape.

A core opening 1211 into which a part of the door cover moving module 1600 is inserted is formed in the core door cover 1215. Since some components of the door cover moving module 1600 are inserted into the core opening 1211, the thickness of the door cover assembly 1200 in the front-back direction can be minimized.

The border door cover 1216 is formed parallel to the outer door cover 1212. The border door cover 1216 includes a border flange 1213 protruding outward from an outer edge of the outer door cover 1212 .

The outer door cover 1212 and the inner door cover 1214 may be integrally manufactured. In this case, the border flange 1213 is formed at an outer edge of the door cover 1210 .

The border flange 1213 is located on the rear side of the inner door cover 1214. The border flange 1213 protrudes more radially outward than the inner door cover 1214 .

In this embodiment, the border flange 1213 is formed in a circular shape along the outer edge of the outer door cover 1214.

When the door cover 1210 is inserted into the front discharge port 201 of the front panel 210, the border flange 1213 adheres to the rear surface of the front panel 210 and adheres to the boundary between the front discharge port 201 and the outer door cover 1212.

The border flange 1213 is formed in a ring shape when viewed from the front. A gasket (not shown) may be disposed on the border flange 1213 . The gasket may adhere to a boundary between the front discharge port 201 and the outer door cover 1212 .

When the door cover 1210 adheres to the front panel 210, the gasket can reduce connection noise and seal the boundary between the front discharge port 201 and the outer door cover 1212.

When the remote fan assembly 400 is not operated and only the local fan assembly is operated, if cool air leaks through the boundary, condensation may occur at the boundary.

A groove 1213a may be concavely formed from the front side of the border flange 1213 to the rear side. The groove 1213a is formed in a ring shape when viewed from the front. The gasket may be inserted and installed into the groove 1213a.

The thickness of the door cover assembly 1200 occupies most of the thickness of the door assembly 200 . Therefore, minimizing the thickness of the door cover assembly 1200 in the front-back direction is an important factor in minimizing the thickness of the door assembly 200 . When the thickness of the door assembly 200 is minimized, the operating load of the door slide module 1300 can be minimized.

The core opening 1211 penetrates the outer door cover 1214 in the front and rear directions. A motor of a door cover moving module 1600 to be described later is inserted into the core opening 1211.

The mover 1230 is disposed on the inner door cover 1214. The mover 1230 may be manufactured integrally with the inner door cover 1214.

In this embodiment, the mover 1230 is manufactured separately and then assembled to the inner door cover 1214. So, the mover 1230 has an assembly structure to be assembled with the inner door cover 1214.

The mover 1230 includes a mover body 1232 disposed to protrude rearward from the inner door cover 1214, and a mover guide 1234 that protrudes inward or outward from the mover body 1232 and is inserted into the guideway 1650 of the cover guide 1640 described later.

When viewed from the front, the mover body 1232 has a ring shape as a whole.

A mover fastening part 1236 fastened to the inner door cover 1214 is formed on the mover body 1232 . The mover fastening part 1236 protrudes to the inside of the mover body 1232. The protruding direction of the mover fastening part 1236 is opposite to the protruding direction of the mover guide 1234.

A fastening part 1214a corresponding to the mover fastening part 1236 is formed on the inner door cover 1214 . The fastening part 1214a protrudes into the core opening 1211 and is formed. The fastening part 1214a is inserted into the mover body 1232.

A mover body supporter 1233 supporting the rear end of the core door cover 1215 is disposed on the inner circumferential surface of the mover body 1232.

The mover body 1232 and the mover guide 1234 are integrally manufactured. The mover body 1232 is disposed to protrude from the door cover 1210 to the rear side. The mover body 1232 extends to a length that can interfere with a cover guide 1640 to be described later.

In this embodiment, the mover guide 1234 is orthogonal to the mover body 1232. The mover guide 1234 may be disposed in a direction parallel to the front panel body 212 .

The protruding direction of the mover guide 1234 may vary depending on the combination with the cover guide 1640. In this embodiment, since the mover body 1232 is inserted inside the cover guide 1640, the mover guide 1234 protrudes outward from the mover body 1232. Unlike the present embodiment, when the mover body 1232 is located outside the cover guide 1640, the guide protrusion protrudes to the inside of the mover body 1232.

The mover guide 1234 is assembled to a guideway 1650 of a cover guide 1640 to be described later, and may move forward or backward along the guideway 1650 when the cover guide 1640 rotates.

Meanwhile, the door cover housing 1220 moves vertically along the upper panel 1110 .

The door cover housing 1220 includes a door cover housing body 1222 that moves vertically along the upper panel 1110, a door cover housing 1223 disposed on the door cover housing body 1222, open toward the front, and selectively accommodating the door cover 1210, disposed on the door cover housing body 1222, and open toward the front, and a moving module installation unit 1224 communicating with the door cover storage unit 1223, disposed at a rear side of the door cover storage unit 1223, and in which the door cover moving module 1600 is installed.

The door cover housing 1220 is located at the inner interval I of the front panel 210 . The left and right sides of the door cover housing 1220 are located within the internal gap I, and most of them are exposed through the open gap D.

The left and right sides of the door cover housing 1220 are located in front of respective front panel ends 215 and 217, and each of the front panel ends 215 and 217 interlock with each other in the front and rear directions of the door cover housing 1220, and prevent the door cover housing 1220 from being separated to the rear. The door cover housing 1220 can slide in the vertical direction, and movement in the forward and backward directions is restricted.

The door cover housing body 1222 may be moved in the vertical direction along the internal gap I formed on the left and right sides of the front panel 210, respectively. The door cover housing body 1222 is moved vertically by the door housing moving module 1700.

The thickness of the door cover housing body 1222 in the front-back direction is smaller than the inner distance I.

When the door cover moving module 1600 is operated, the door cover 1210 is moved to the rear side and can be stored in the door cover storage unit 1223. When the front discharge port 201 is closed, the door cover 1210 is positioned forward of the door cover housing 1220 and is positioned on the same plane as the front panel 210 .

The front of the door cover storage unit 1223 is opened to accommodate the door cover 1210, and is formed in a circular shape when viewed from the front. The door cover accommodating portion 1223 is concavely formed backward from the door cover housing 1222 .

The upper surface 1222a of the door cover housing body 1222 is formed as a curved surface and is disposed to surround the edge of the door cover 1210. The door cover 1210 may be positioned below the upper surface 1222a. The door cover receiving part 1223 is disposed below the upper surface 1222a.

The center of curvature of the upper surface 1222a may coincide with the center of curvature of the door cover 1210 . The top surface 1222a is located outside the door cover 1210 in the radial direction.

In addition, a door cover top wall 1114 that interferes with the door cover housing 1220 and restricts the movement of the door cover assembly 1200 is disposed on the upper panel body 1130 .

The door cover top wall 1114 protrudes from the upper panel body 1130 to the rear side.

The door cover top wall 1114 may be formed in a shape corresponding to the upper side of the door cover housing 1220. In this embodiment, since the upper surface of the door cover housing 1220 is formed in an arc shape when viewed from the front, the door cover top wall 1114 is formed in an arc shape with a larger diameter than the door cover housing 1220.

The door cover top wall 1114 is formed to cover the entire upper side of the door cover housing 1220. The door cover housing 1220 is in close contact with the lower surface of the door cover top wall 1114, and leakage of air inside the cabinet can be prevented.

The door cover top wall 1114 may form the same curvature center as the panel outlet 1101. The door cover top wall 1114 is formed with a radius of curvature greater than that of the panel outlet 1101.

The door cover top wall 1114 may block air inside the cabinet from flowing toward the camera module 1900 . When cold air from the cabinet assembly 100 is directly supplied to the camera module 1900, condensation may occur on the camera module 1900.

In order to limit the upward movement of the door cover assembly 1200, the door cover top wall 1114 is preferably located above the panel outlet 1101.

When the door cover assembly 1200 is moved upward and the top surface 1222a comes into contact with the door cover top wall 1114, the door cover 1210, the panel discharge port 1101, and the front discharge port 201 are arranged in a line in the front-back direction. When the door cover assembly 1200 is not lifted to the correct position, the door cover 1210 is caught on the upper panel body 1130 and cannot be moved to the front discharge port 201 .

Each side surface 1222b of the door cover housing body 1222 faces each front panel end 215, 217 of the front panel 210. The side surface 1222b is located in the inner gap I of the front panel 210 and can be moved vertically along the inner gap I.

The moving module installation part 1224 is formed concave backward from the door cover housing body 1222. The moving module installation unit 1224 communicates with the door cover storage unit 1223 and is located at a rear side of the door cover storage unit 1223.

The moving module installation part 1224 has an open front and is formed in a circular shape when viewed from the front. The moving module installation unit 1224 is formed smaller than the area of the door cover 1210 and is located on the rear side of the door cover 1210 . The thickness of the moving module installation part 1224 in the front-back direction is smaller than the thickness of the door cover housing 1220 .

In this embodiment, the moving module installation part 1224 is formed in a circular shape when viewed from the front. The center of the moving module installation part 1224 and the center of the door cover 1210 coincide.

Most of the components of the door cover moving module 1600 are installed in the moving module installation unit 1224.

<<Composition of door cover moving module>>

The door cover moving module 1600 is configured to move the door cover 1210 forward and backward. The door cover moving module 1600 is a component for realizing the first front opening.

The door cover 1210 may be moved forward and backward through various methods. For example, the door cover 1210 may be connected to a liquid actuator such as a hydraulic cylinder and moved in a forward and backward direction by moving a piston of the hydraulic cylinder. As another example, the door cover 1210 may be moved forward and backward through a motor and a multi-joint link structure.

However, since the structures such as the link structure and the hydraulic cylinder must be moved or rotated forward of the cabinet assembly 100, the thickness of the door assembly 200 in the front-rear direction cannot help but be increased.

In this embodiment, the door cover moving module 1600 converts the rotational force of the door cover motor through mutual interference to move the door cover 1210 forward and backward.

The structure of the door cover moving module 1600 can minimize the thickness of the door assembly 200 in the front and rear directions.

The door cover moving module 1600 is rotatably assembled with a door cover motor 1610 located at the rear of the door cover 1210, installed in the door cover housing 1220, and having a door cover motor shaft 1611 disposed in a forward and backward direction, a sun gear 1620 coupled to the door cover motor shaft and rotated by the operation of the door cover motor, and the door cover housing 1220, the sun gear A plurality of planetary gears 1630 meshed with the sun gear 1620 and disposed radially outside the sun gear 1620, disposed between the door cover housing 1220 and the door cover 1210, the plurality of planetary gears 1630 located inside, meshed with the plurality of planetary gears 1630, respectively, and rotating the planetary gears 1630 A cover guide 1640 rotates clockwise or counterclockwise and moves the door cover 1210 forward or backward through mutual interference with the door cover 1210 .

The sun gear 1620 is a pinion gear, and teeth are formed on an outer surface thereof in a circumferential direction.

The planetary gear 1630 is a pinion gear, and teeth are formed on an outer surface thereof in a circumferential direction. In this embodiment, three planetary gears 1630 are disposed. Each of the three planetary gears 1630 is meshed with the outer surface of the sun gear 1620 and rotates simultaneously when the sun gear 1620 rotates.

The plurality of planetary gears 1630 and the sun gear 1620 are inserted into the moving module installation part 1224 of the door cover housing 1220. The moving module installation unit 1224 includes a sun gear installation unit 1225 where the sun gear 1620 is installed and a planetary gear installation unit 1226 where each planet gear 1630 is installed.

The rotation shaft of the sun gear 1620 may be inserted into the sun gear installation unit 1225, and the sun gear 1620 may be rotated in place while being assembled to the sun gear installation unit 1225.

The door cover motor 1610 is positioned ahead of the sun gear 1620. The door cover motor 1610 is located inside the moving module installation part 1224.

The door cover motor shaft 1611 of the door cover motor 1610 is disposed from the front to the rear side, and is coupled with the sun gear 1620 disposed at the rear of the door cover motor 1610.

A motor housing 1660 is further disposed to fix the door cover motor 1610 to the door cover housing 1220. When the door cover motor 1610 is located on the rear surface of the door cover housing 1220, the door cover motor 1610 may be directly coupled to the door cover housing 1220.

Since such a structure increases the thickness of the door cover assembly 1200 in the front-back direction, in this embodiment, the door cover motor 1610 is located inside the door cover housing 1220, and the door cover motor 1610. A motor housing 1660 is disposed to fix it.

The motor housing 1660 may be assembled to the door cover housing 1220. In this embodiment, the motor housing 1660 is inserted into the moving module installation part 1224 in a state where the door cover motor 1610 is assembled. Through this structure, the thickness of the door cover assembly 1200 in the front-back direction can be minimized.

The motor housing 1660 is located inside the cover guide 1640, and the cover guide 1640 has a shape surrounding the outside of the motor housing 1660.

When viewed from the front, the motor housing 1660 is positioned between the door cover motor 1610 and the cover guide 1640. When viewed in the front-back direction, the motor housing 1660 is positioned between the door cover housing 1220 and the door cover 1210.

When the door cover motor 1610 and the motor housing 1660 are assembled, in order to minimize the length in the front-back direction, the door cover motor 1610 is assembled in a form penetrating the motor housing 1660.

To this end, the motor housing 1660 is formed with a motor through-portion 1662 through which the door cover motor 1610 passes. The motor through part 1662 is formed in the front and rear directions. The motor penetration part 1662 is located behind the core opening 1211 of the inner door cover 1214. In the assembled state of the motor housing 1660, the door cover motor 1610 passes through the motor through-portion 1662 and is inserted into the corner opening 1211.

Since the door cover motor 1610 is inserted not only into the motor housing 1660, which is a structure to be assembled, but also into the structure of the door cover 1210 moving in the forward and backward directions, the thickness of the door assembly 200 in the forward and backward directions can be minimized.

When viewed in the front-back direction, the cover guide 1640 is disposed between the door cover housing 1220 and the door cover 1210. When viewed from the front, the cover guide 1640 is formed in a ring shape opened in the front and rear directions.

The cover guide 1640 may be rotated by receiving rotational force from the planetary gear 1630 . When viewed from the front, the cover guide 1640 may rotate clockwise or counterclockwise.

The cover guide 1640 and the door cover 1210 are assembled to be relatively movable, and when the cover guide 1640 rotates, the door cover 1210 can move forward or backward through mutual interference.

The cover guide 1640 includes a cover guide body 1640 formed in a ring shape, a guide gear 1642 disposed along an inner circumferential surface of the cover guide body 1640 and engaged with a plurality of planetary gears 1630, disposed along a circumferential direction of the cover guide body 1640, and moved with the cover interference portion 1230 (mover guide 1234 in this embodiment). It includes a guideway 1650 that is possibly assembled and moves the door cover 1210 forward or backward through mutual interference with the mover guide 1234 when rotated clockwise or counterclockwise.

When the cover guide 1640 rotates clockwise or counterclockwise by the operation of the planetary gear 1630, the mover 1230 of the door cover 1210 causes mutual interference with the cover guide 1640. When the mutual interference occurs, the mover guide 1234 does not rotate, but since the cover guide 1640 rotates, it moves along the guideway 1650.

The guide gear 1642 is in the form of a ring gear. The guide gear 1642 is disposed on the inner circumferential surface of the cover guide body 1640.

In this embodiment, the guide way 1650 is formed to pass through the cover guide body 1642. Unlike the present embodiment, the guideway 1650 may be formed in a groove shape. In this embodiment, in order to minimize the thickness of the cover guide 1640, the guide way 1650 is formed to penetrate the inside and outside of the cover guide 1640. In this embodiment, the mover guide 1234 is inserted into the guideway 1650.

In this embodiment, the through direction of the guideway 1650 is parallel to the front surface of the front panel 210 . The coupling direction of the guideway 1650 and the mover guide 1234 is a direction crossing the front-back direction.

The guideway 1650 is formed in the front-rear direction. The mover guide 1234 interferes with the guideway 1650, and the mover guide 1234 moves forward and backward due to the mutual interference.

The guide way 1650 is formed to elongate in the circumferential direction of the cover guide body 1642, and forms a gentle curve from the rear to the front of the cover guide body 1642. The door cover 1210 may move forward or backward by the length of the guideway 1650 in the front and rear directions.

Guideways 1650 are formed in a plurality of places, and three are arranged in this embodiment. The three guideways 1650 are preferably arranged at equal intervals based on the center of the cover guide 1640 .

When the cover guide 1640 rotates clockwise or counterclockwise, mutual interference occurs between the guide way 1650 and the mover guide 1234.

Since the guide way 1650 is disposed in the forward and backward directions along the circumferential direction of the cover guide 1640, when the cover guide 1640 rotates, the mover guide 1234 does not rotate, but moves forward or backward along the guide way 1650.

The axial center of the cover guide 1640 coincides with the axial center of the sun gear 1620. The cover guide 1640 is inserted into the moving module installation part 1224 and rotates inside the moving module installation part 1224.

The guide gear 1642 is circularly disposed along the inner circumferential surface of the cover guide body 1642 . The guide gear 1642 has teeth formed toward the axial center of the cover guide 1640 .

The door cover motor 1610, a plurality of planetary gears 1630, and a sun gear 1620 are disposed inside the cover guide 1640, and through this structure, the thickness of the door cover moving module 1600 in the forward direction can be minimized.

<<Composition of door housing moving module>>

The door housing moving module 1700 moves the door cover assembly 1200 in the vertical direction and sets the front discharge port 201 disposed on the front panel 210 to the second front open state.

In this embodiment, the door housing moving module 1700 is disposed on the left and right sides of the door cover housing 1220, respectively. Unlike this embodiment, only one door housing moving module 1700 may be disposed.

In this embodiment, since the door housing moving module 1700 also functions to fix the vertical position of the door cover assembly 1200, two door housing moving modules 1700 are disposed on the left and right to distribute the supporting load of the door cover assembly 1200.

The door housing moving module 1700 may move the door cover assembly 1200 vertically along the front panel 210 . In particular, the door housing moving module 1700 can move the entire door cover housing 1220 to which the door cover 1210 is coupled in a vertical direction.

The door cover assembly 1200 moves along the inner distance I of the front panel 210 . Since it is disposed inside the front panel 210, it is preferable that the installation space of the door housing moving module 1700 is disposed below the internal distance (I).

In this embodiment, the door housing moving module 1700 provides a structure to be installed below the thickness of the front panel 210 . In this embodiment, the thickness of the door housing moving module 1700 in the front-back direction is equal to or less than the thickness of the front panel 210 .

The door cover housing 1220 can be moved to a lower side of the front discharge port 201 by the door housing moving module 1700, and the front discharge port 201 can implement the second front opening.

The door cover 1210 disposed on the movement path of the remote fan assembly 400 toward the front discharge port 201 can be moved downward of the front discharge port 201 by the operation of the door housing moving module 1700.

When the door cover 1210 is moved downward in the vertical direction, no part of the door cover 1210 overlaps the front discharge port 201 . The door housing moving module 1700 moves the door cover housing 1220 out of the moving path of the remote fan assembly 400 .

In the second front opening, the discharge grill 450 may be exposed through the front discharge port 201 .

The door housing moving module 1700 includes a left door housing moving module disposed on the left side of the door cover housing and a right door housing moving module disposed on the right side of the door cover housing.

The left door housing moving module and the right door housing moving module have the same configuration and are symmetrical.

The door housing moving module 1700 includes a rack 1710 disposed on the front panel 210 or panel module 1100 and elongated in the vertical direction, a gear assembly 1730 disposed on the door cover assembly 1200, meshed with the rack 1710, and moving along the rack 1710 during rotation, and disposed on the door cover assembly 1200. and a gear driving motor 1720 providing driving force to the gear assembly 1730, and an upper and lower moving rail 1790 disposed on the door cover assembly 1200 and the rack 1710 and guiding movement of the door cover assembly 1200.

The door housing moving module 1700 may further include a gear housing 1780 in which a gear assembly 1730 and a gear driving motor 1720 are installed. When the gear housing 1780 is not disposed, the gear assembly 1730 and the gear driving motor 1720 are directly installed in the door cover housing 1220 .

In this embodiment, to facilitate assembly and repair, the gear assembly 1730 and the gear driving motor 1720 are assembled to the gear housing 1780, and then the gear housing 1780 is assembled to the door cover housing 1220.

The rack 1710 extends long in the vertical direction of the front panel 210 . The rack 1710 is disposed in the inner space I of the front panel 210 .

It may be disposed on either the front panel 210 or the panel module 1100. In this embodiment, since the front panel 210 is made of a metal material, when the rack 1710 is directly installed, a hole passing through the front panel 210 made of a metal material must be formed. In this case, cold air may leak through the hole, and foreign substances may flow into the front panel 210 .

In this embodiment, to prevent this, the rack 1710 is installed on the panel module 1100 instead of the front panel 210. In this embodiment, the rack 1710 is assembled to the upper panel module 1110. The rack 1710 is installed in a portion of the upper panel module 1110 inserted into the internal gap (I).

The rack 1710 is disposed to face the front panel sides 214 and 216.

In this embodiment, two racks 1710 are disposed, and each rack 1710 is disposed at an internal interval I disposed on the left and right sides of the front panel 210, respectively. When it is necessary to distinguish the plurality of racks 1710, a rack disposed on the left side when viewed from the front of the front panel 210 is defined as a left rack, and a rack disposed on the right side is defined as a right rack. The left rack and the right rack are left-right symmetrical.

<Rack composition and installation structure>

The rack 1710 includes a rack body 1712 elongated in the vertical direction, disposed on the rack body 1712, disposed at an internal distance I on one side of the front panel 210 (the second front panel side in this embodiment), and disposed toward the other side of the front panel (first front panel side in this embodiment), in which a plurality of racks are disposed along the longitudinal direction of the rack body 1712. It includes teeth 1711.

The rack-shaped portion 1711 protrudes from the rack body 1712 toward the opposite front panel side. The rack type part 1711 may be manufactured separately and assembled to the rack body 1712 . In this embodiment, the rack type part 1711 and the rack body 1712 are integrally manufactured.

The teeth of the rack tooth portion 1711 are arranged horizontally. A plurality of rack-type parts 1711 are arranged in the vertical direction. The gear assembly may be meshed with the rack tooth portion 1711 and move vertically along the rack tooth portion 1711 .

The rack 1710 includes a rack attachment part 1713 disposed on the rack body 1712 and in close contact with the front panel end 217, a rack hooking part 1714 disposed on the rack body 1712, assembled with the upper panel module 1110, and engaging the upper panel module 1110, and disposed on the rack body 1712. It includes a rail installation part 1719 where the lower moving rail 1790 is disposed.

In this embodiment, the rack type part 1711, the rack body 1712, the rack attachment part 1713, the rack hanging part 1714, and the rail installation part 1719 are integrally manufactured through injection molding. Unlike the present embodiment, some of the rack type part 1711, the rack body 1712, the rack contact part 1713, the rack hanging part 1714, or the rail installation part 1719 may be separately manufactured and then assembled.

The rack attachment part 1713 is disposed in the inner space I of the front panel 210 and adheres to the inner surface of the front panel end 217 . A fastening member fixing the rack 1710 is fastened through the front panel end 217 and the rack contact portion 1713 .

The rack contact portion 1713 intersects the rack body 1712 and is orthogonal in this embodiment. The rack attachment part 1713 is disposed to face the front surface of the front panel 210, and the rack body 1712 is disposed in the front-rear direction.

The rail installation part 1719 is formed in the form of a concave groove in the rack body 1712. The rail installation part 1719 is concave from the rack body 1712 toward the front panel side 216 side. It opens toward the front panel side 215 opposite the rail installation part 1719.

The rail installation part 1719 extends along the longitudinal direction of the rack 1710. In this embodiment, the rail installation part 1719 is arranged in a vertical direction.

The upper and lower moving rails 1790 are installed by being inserted into the rail installation part 1719. The upper and lower moving rails 1790 may be positioned within the left and right widths of the rack contact part 1713.

Since the upper and lower moving rails 1790 are installed in the concavely formed rail installation part 1719, the installation space of the rack 1710 and the upper and lower moving rails 1790 can be minimized.

Since the rail installation part 1719 is concavely formed from the rack body 1712 toward the second front panel side 216, the upper and lower moving rails 1790 can be positioned within the inner distance I.

In this embodiment, the rail installation part 1719 is formed in a “⊂” shape and opens toward the opposite front panel side. The upper and lower moving rails 1790 are inserted into the opened portion.

The rail installation part 1719 intersects a first rail installation wall 1719a connected to the rack body 1712, intersects the first rail installation wall 1719a, is disposed in the front-back direction, intersects a second rail installation wall 1719b to which the up and down moving module 1790 is fixed, and intersects the second rail installation wall 1719b, and the first rail installation wall 1719 and a third rail installation wall 1719c disposed opposite to a).

The rail installation part 1719 has a rail installation space 1719d surrounded by a first rail installation wall 1719a, a second rail installation wall 1719b, and a third rail installation wall 1719c. The rail installation space 1719d is opened toward the opposite front panel side.

The first rail installation wall 1719a is disposed in the left-right direction and faces the rack contact portion 1713. The second rail installation wall 1719b is disposed in the front-back direction and faces the front panel sides 216 and 217. In this embodiment, the first rail installation wall 1719a and the second rail installation wall 1719b are perpendicular to each other.

A rack space 1710a may be formed between the rack attachment part 1713, the first rail installation wall 1719a, and the second rail installation wall 1719b. In the rack 1710, the rack attachment part 1713, the first rail installation wall 1719a, the second rail installation wall 1719b, the third rail installation wall 1719c, and the rack locking part 1714 are integrally manufactured through injection molding.

The rack space 1710a is opened toward the front panel sides 216 and 217. The opening direction of the rack space 1710a and the opening direction of the rail installation space 1719d are opposite to each other. The opening direction of the rail installation space 1719d is the same as the protruding direction of the rack-shaped portion 1711.

The rack space 1710a opens toward the installed front panel side 216, and the rail installation space 1719d opens toward the opposite front panel side 217 that is not installed.

The rack hooking part 1714 protrudes from the rail installation part 1719 toward the upper panel module 1110. The rack hooking part 1714 is inserted into the rear surface of the upper panel module 1110 and prevents the rack 1710 from moving in the left and right directions.

The rack-hung part 1714 includes a first rack-hung part 1714a protruding forward from the third rail installation wall 1719c and a second rack-hung part 1714b protruding left and right from the first rack-hung part 1714b.

The first rack-hung part 1714a and the second rack-hung part 1714b cross each other, and in this embodiment, they are bent in a ““” shape. The second rack engaging portion 1714b may be assembled with the upper panel module 1110 in an interference fit form.

The upper panel module 1110 provides a structure capable of accommodating the rack 1710.

The upper panel module 1110 includes an upper panel body 1130 disposed on the rear surface of the front panel 210, and a panel discharge port 1101 formed to penetrate the upper panel body 1130 in the front-back direction, located behind the front discharge port 201, and communicating with the front discharge port 201.

The upper panel body 1130 includes an upper panel front 1132 located on the rear surface of the front panel 210 and where the panel outlet 1101 is formed, and an upper panel side 1134 connected to the upper panel front 1132 and located inside the side surface of the front panel 210.

The upper panel front 1132 is located between the door cover housing 1220 and the front panel 210.

The upper panel side 1134 is located between the rack 1170 and the side surface of the front panel 210 (front panel side in this embodiment). The upper panel side 1134 supports the rack 1170 and may be assembled with the rack 1170 .

The upper panel side 1134 may be disposed on either the first front panel side 214 or the second front panel side 216 of the front panel 210 .

The upper panel front 1132 and the upper panel side 1134 may be separately manufactured and then assembled. In this embodiment, the upper panel front 1132 and the upper panel side 1134 are integrally manufactured through injection molding.

The upper panel body 1130 includes a panel front support portion 1135 formed on the upper panel front 1132, closely attached to the rear surface of the front panel body 212, and supporting the rear surface of the front panel body 212, and a panel panel coupled to a gasket 205 formed on the upper panel front 1132 and disposed in the panel outlet 1101. A front coupling part 1136 and a panel front insertion part 1137 formed on the upper panel front 1132 and assembled with the rack 1710 to form a mutually engaging panel front insertion part 1137 are included.

The upper panel body 1130 includes a first panel side support part 1138 formed on the upper panel side 1134, adhered to the front panel sides 214 and 126 of the front panel 210, and supporting the front panel side of the front panel 210, and a front panel end 215, 217 formed on the upper panel side 1134 and attached to the front panel side 215, 217 of the front panel 210. ) Includes a second panel side support 1139 for supporting.

The upper panel body 1130 is formed in a flat plate shape as a whole and is curved in the front-back direction.

The panel front coupling portion 1136 forms an edge of the panel discharge port 1101. The panel front coupling portion 1136 protrudes from the upper panel body 1130 and may protrude toward the panel outlet 1101 in this embodiment.

The panel front support part 1135 protrudes forward from the upper panel body 1130 and adheres to the rear surface of the front panel 210 .

The panel front insertion portion 1137 protrudes forward from the upper panel body 1130 and may adhere to the rear surface of the front panel 210 .

The panel front insertion portion 1137 protrudes forward from the upper panel body 1130 to form a space in the rear side into which the rack engaging portion 1714 is inserted.

The upper panel body 1130 supports at least two points in the left and right direction of the front panel 210 . In this embodiment, the upper panel body 1130 also provides a function of supporting the front panel 210 by the panel front insertion part 1137 .

The panel front support part 1135 is disposed closer to the panel discharge port 1101 than the panel front insertion part 1137. The panel front insertion part 1137 may be disposed within the inner space I of the front panel 210 .

The panel front support portion 1135 and the panel front insertion portion 1137 protrude forward from the upper panel front 1132, and a space is formed between the panel front support portion 1135, the panel front insertion portion 1137, and the upper panel front portion 1132. The space is located between the upper panel front 1132 and the rear surface of the front panel 210.

The upper panel side 1134 may be disposed to face inner surfaces of the front panel sides 214 and 126 .

The first panel side support part 1138 protrudes from the upper panel side 1134 toward the front panel side, and supports the inner surface of the front panel side.

The second panel side support 1139 protrudes from the upper panel side 1134 toward the front panel end, and supports the inner surface of the front panel end.

In this embodiment, the upper panel body 1130 supports the front panel 210 through the panel front support portion 1135, the panel front insertion portion 1137, the first panel side support portion 1138, and the second panel side support portion 1139, and minimizes the contact area between the upper panel body 1130 and the front panel 210.

<Configuration of upper and lower moving rails>

The upper and lower moving rails 1790 are disposed in the rail installation space 1719d surrounded by the first rail installation wall 1719a, the second rail installation wall 1719b, and the third rail installation wall 1719c.

The up and down moving rail 1790 guides the up and down movement of the door cover assembly 1200 . In particular, the upper and lower moving rails 1790 are attached to the door cover housing 1220 and guide the vertical movement of the door cover housing 1220 .

The upper and lower moving rails 1790 are disposed between the rack 1710 and the door cover housing 1220. More specifically, the upper and lower moving rails 1790 are disposed between the rail installation unit 1719 and the door cover housing 1220.

The upper and lower moving rails 1790 are disposed on the left and right sides of the door cover assembly 1200, respectively. The upper and lower moving rails 1790 are located outside the side of the door cover housing 1220. By disposing the upper and lower moving rails 1790 on the side of the door cover assembly 1200, the thickness of the door assembly 200 in the front-back direction can be minimized.

The upper and lower moving rails 1790 include a first rail 1792 installed on the rack 1710 and a second rail 1794 installed on the door cover housing 1220.

The first rail 1792 is installed on the rail installation part 1719 and accommodated in the rail installation space 1719d. Since the first rail 1792 is accommodated in the rail installation space 1719d, it does not protrude out of the rack 1710.

The second rail 1794 is assembled with the first rail 1792 and moves along the first rail 1792 in a vertical direction. A plurality of bearings are disposed between the first rail 1792 and the second rail 1794, and the bearings reduce friction between the first rail 1792 and the second rail 1794.

A portion of the second rail 1794 may be inserted into the rail installation space 1719d for assembly with the first rail 1792 .

In this embodiment, the second rail 1794 does not protrude outside the rack-shaped portion 1711 in the left-right direction, but is covered by the rack-shaped portion 1711 when viewed from the rear.

The second rail 1794 is assembled to the side of the door cover housing 1220. The first rail 1792 and the second rail 1794 are relatively movable in the vertical direction.

When the door cover assembly 1200 moves up and down, the first rail 1792 and the second rail 1794 guide the up and down movement of the door cover assembly 1200 and reduce friction.

<Configuration of gear assembly and gear drive motor>

The height of the door cover assembly 1200 is adjusted by the engagement of the gear assembly 1730 and the rack 1710. The vertical height of the door cover assembly 1200 is maintained by the meshing of the gear assembly 1730 and the rack 1710 .

In this embodiment, a separate component for maintaining the height of the door cover assembly 1200 is not included.

The gear assembly 1730 transmits the driving force of the gear driving motor 1720 to the rack 1710 and supports the load of the door cover assembly 1200 . In this embodiment, the gear assembly 1720 provides a structure capable of effectively supporting the load of the door cover assembly 1200.

The gear assembly 1730 is disposed on the door cover assembly 1200, has a first tooth portion 1741 formed on an outer circumferential surface, engages with the rack 1710 through the first tooth portion 1741, and is disposed on the door cover assembly 1200, including a first gear 1740 capable of moving vertically while being engaged with the rack 1710. The second gear 1750 includes a 2-1 tooth portion 1751 and a 2-2 tooth portion 1752 formed with different radii of curvature, and meshes with the first tooth portion 1741 of the first gear 1740 through the 2-1 tooth portion 1751, and a second gear 1750 disposed in the door cover assembly 1200 and formed with different teeth. A third gear 1760 including a 3-1 tooth portion 1761 and a 3-2 tooth portion 1762, and meshed with the 2-2 tooth portion 1752 of the second gear 1750 through the 3-1 tooth portion 1761, disposed in the door cover assembly 1200, and the 3-2 tooth portion 1762 It includes a worm gear 1770 that is engaged, connected to the gear driving motor 1720 and rotated, and disposed in the vertical direction.

The motor shaft 1721 of the gear driving motor 1720 is arranged in a vertical direction.

In this embodiment, the motor shaft 1721 of the gear driving motor 1720 passes through the worm gear 1770. The shaft center of the worm gear 1770 is disposed on the same line as the motor shaft 1721.

The first gear 1740 meshes with the rack 1710 and the second gear 1750, respectively.

The second gear 1750 meshes with the first gear 1740 and the third gear 1760, respectively.

The third gear 1760 meshes with the second gear 1750 and the worm gear 1770, respectively.

Each tooth of the first gear 1740, the second gear 1750, and the third gear 1760 is formed in a pinion gear type. Each rotation axis of the first gear 1740, the second gear 1750, and the third gear 1760 is formed in the front-rear direction.

The first teeth 1741 are disposed in a circular shape when viewed from the front or rear.

A position where the first tooth portion 1741 and the rack tooth portion 1711 are engaged is different from a position where the first tooth portion 1741 and the 2-1st tooth portion 1751 are engaged.

The first tooth portion 1741, the rack tooth portion 1711 of the rack 1710, and the 2-1 tooth portion 1751 are all formed with teeth having the same size and shape.

The first tooth portion 1741, the rack tooth portion 1711 of the rack 1710, and the 2-1 tooth portion 1751 are all formed in the same pinion gear tooth shape.

The second gear 1750 and the third gear 1760 have rotational axes in the forward and backward directions and are formed in a pinion gear type.

Unlike the first gear 1740, the second gear 1750 and the third gear 1760 have two different teeth.

Specifically, in the second gear 1750, a 2-1 tooth portion 1751 and a 2-2 tooth portion 1752 are disposed, and the 2-1 tooth portion 1751 and the 2-2 tooth portion 1752 are arranged in the direction of the rotation axis of the second gear 1750 (rear direction in this embodiment). The 2-1 tooth portion 1751 and the 2-2 tooth portion 1752 are arranged in the front-back direction.

In the second gear 1750, the 2-1 tooth portion 1751 and the 2-2 tooth portion 1752 are formed in different tooth shapes. The 2-1 tooth portion 1751 and the 2-2 tooth portion 1752 are both formed as pinion gear teeth.

When viewed from the front, the 2-1 tooth portion 1751 and the 2-2 tooth portion 1752 are arranged in circular shapes having different diameters, respectively.

Either one of the 2-1 tooth portion 1751 and the 2-2 tooth portion 1752 may be disposed on the front side, and the other one may be located on the rear side. In this embodiment, the 2-1 tooth portion 1751 is located on the rear side of the 2-2 tooth portion 1752. The 2-1 tooth portion 1751 is located on the same plane as the first tooth portion 1741 and the 3-2 tooth portion 1762.

And since the second gear 1750 maintains a state meshed with the first gear 1740 and the third gear 1760 at the same time, the same teeth as the second gear 1750 are the first gear 1740 and the third gear 1760 is also disposed. Therefore, the 2-2 tooth portion 1352, the first tooth portion 1341, and the 3-1 tooth portion 1361 have the same standard.

In this embodiment, in the second gear 1750, the diameter of the 2-2 tooth portion 1752 is larger than the diameter of the 2-1 tooth portion 1751. By arranging the diameters of the 2-1 tooth portion 1751 and the 2-2 tooth portion 1752 to be different, a meshing structure meshing with the first gear 1740 and the third gear 1760 is provided.

When the first gear 1740 and the second gear 1750 are engaged, the first gear 1740 is positioned rearward than the 2-2 tooth portion 1752 . This is because the 2-1 tooth portion 1751 is located at a rear side of the 2-2 tooth portion 1752.

Unlike the present embodiment, the arrangement of the 2-1st tooth portion 1751 and the 2-2 tooth portion 1752 in the front-back direction may be reversed.

In the second gear 1750, the 2-1 tooth portion 1751 and the 2-2 tooth portion 1752 are formed in different tooth shapes. The 2-1 tooth portion 1751 and the 2-2 tooth portion 1752 are both pinion gear-shaped teeth.

The third gear 1760 includes a 3-1 tooth portion 1761 and a 3-2 tooth portion 1762. Either one of the 3-1st tooth portion 1761 and the 3-2 tooth portion 1762 meshes with the worm gear 1770.

In this embodiment, the diameters of the 3-1st tooth portion 1761 and the 3-2 tooth portion 1762 are formed to be different. The diameter of the 3-2 tooth portion 1762 engaged with the worm gear 1770 may be larger than that of the 3-1 tooth portion 1761 .

Since the 3-2 tooth portion 1762 meshes with the worm gear tooth portion 1771, when the diameter is smaller than that of the 3-1 tooth portion 1761, the worm gear tooth portion 1771 and the 3-1 tooth portion 1761 may interfere. The 3-2 tooth portion 1762 and the worm gear tooth portion 1771 are engaged in a worm gear manner, and operation noise can be minimized through the worm gear engagement.

In this embodiment, the diameter of the 3-2 tooth portion 1762 is larger than that of the 3-1 tooth portion 1761 .

In order to minimize interference with the worm gear 1770, the 3-2 tooth portion 1762 is located rearward than the 3-1 tooth portion 1761.

The rotation axis of the third gear 1760 is disposed in the forward and backward directions.

The 3-1 tooth portion 1761 and the 3-2 tooth portion 1762 are arranged in the front-back direction. The 3-1 tooth portion 1761 is located forward of the 3-2 tooth portion 1762.

The 3-1 tooth portion 1761 is located on the same plane as the 2-2 tooth portion 1752, and the 3-2 tooth portion 1762 is located on the same plane as the 2-1 tooth portion 1751.

In this embodiment, since the 3-2 tooth portion 1762 is meshed with the worm gear 1770, the tooth profile of the 3-2 tooth portion 1762 is formed in a worm gear tooth shape.

Since the 3-1 tooth portion 1761 meshes with the 2-2 tooth portion 1752, it is formed as a pinion gear tooth.

The worm gear 1770 has a cylindrical shape as a whole, and a rotating shaft is arranged in a vertical direction. The worm gear 1770 has a worm gear tooth shape 1771 formed on its outer circumferential surface, and has a spiral shape in the vertical direction.

Since the rotation axis of the worm gear 1770 is arranged in the vertical direction, the worm gear tooth type 1771 can support an external force in the vertical direction.

When an external force in the vertical direction is applied in a structure in which the rotating shaft of the worm gear 1770 is inclined or horizontal, the worm gear 1770 may be rotated.

In this embodiment, since the rotating shaft of the worm gear 1770 is arranged in the vertical direction, it is possible to support a vertical external force applied from the third gear 1760. Through the arrangement of the worm gear 1770, it is possible to prevent the door cover assembly 1200 from moving downward due to its own weight without implementing a separate stopper or the like.

In this embodiment, the weight of the door cover assembly 1200 may be supported by the meshing of the rack 1710 and the first gear 1740 and the meshing of the worm gear 1770 and the third gear 1760.

The worm gear 1770 is directly connected to the motor shaft 1721 of the gear driving motor 1720. The motor shaft 1721 of the gear driving motor 1720 passes through the center of rotation of the worm gear 1770 in the vertical direction.

In this embodiment, a stepper motor is used as the gear driving motor 1720, and rotation of the worm gear 1770 by an external force applied to the third gear 1760 can be suppressed.

A first gear 1740, a second gear 1750, a third gear 1760, a worm gear 1770, and a gear driving motor 1720 are assembled to the gear housing 1780.

The gear housing 1780 provides rotational axes for the first gear 1740 , the second gear 1750 and the third gear 1760 . A first gear 1740, a second gear 1750, and a third gear 1760 are assembled to each boss 1742 formed in the gear housing 1780.

In this embodiment, the gear housing 1780 includes a first gear housing 1781 and a second gear housing 1782.

A first gear 1740, a second gear 1750, a third gear 1760, a worm gear 1770, and a gear driving motor 1720 are installed between the first gear housing 1781 and the second gear housing 1782.

Each boss 1742 protrudes from one of the first gear housing 1781 and the second gear housing 1782 to provide rotational axes for the first gear 1740, the second gear 1750, and the third gear 1760. The boss 1742 protrudes from the first gear housing 1781 to the rear side.

In this embodiment, the first gear housing 1781 is located in front of the second gear housing 1782. The first gear housing 1781 is assembled to the rear surface of the door cover housing 1220.

Among the gears of the gear assembly 1730, only the first gear 1740 protrudes outward from the gear housing 1780. The first gear 1740 passes through the side surface of the gear housing 1780, and a part thereof protrudes outward. A part of the side surface of the gear housing 1780 is opened so that the first gear 1740 protrudes outward.

The first tooth portion 1741 of the first gear 1740 protruding out of the gear housing 1780 is meshed with the rack tooth portion 1711 of the rack 1710. Since the first tooth portion 1741 and the rack tooth portion 1711 are formed in the front-back direction, they maintain a mutually engaged state in the vertical direction.

An upper and lower moving rail 1790 is disposed in front of the first tooth portion 1741 and the rack tooth portion 1711 . The upper and lower moving rails 1790 are located on the plane where the second gear 1750 is disposed in the forward and backward directions.

<Configuration of cable guide>

Since the door housing moving module 1700 is moved in the vertical direction, the cable connected to the door housing moving module 1700 is also moved in the vertical direction.

Since the thickness of the door assembly 200 in the front-back direction is very small compared to the width, twisting of cables may occur when the door housing moving module 1700 moves up and down.

In addition, the operation of the door housing moving module 1700 may be restricted because a cable is inserted between the door housing moving module 1700 and the panel module 1100 that move up and down. A cable guide 1800 may be disposed to minimize such a problem.

The upper end of the cable guide 1800 is assembled to the door cover assembly 1200 and the lower end is assembled to the panel module 1100.

The cable guide 1800 includes a first cable guide 1810 assembled to the door cover assembly 1200 to be able to rotate relatively, a second cable guide 1820 assembled to the panel module 1100 to be able to rotate relatively, and a connection cable guide 1830 assembled to be able to rotate relative to each of the first cable guide 1810 and the second cable guide 1820.

The first cable guide 1810 includes a cable guide body 1815, a cable insertion space 1813 disposed inside the cable guide body 1815 and into which a cable is inserted, a 1-1 rotation part 1811 disposed on one side of the cable guide body 1815 and assembled to be relatively rotatable with the door cover assembly 1200 (a door cover housing in this embodiment), It is disposed on the other side of the cable guide body 1815 and includes a 1st-2nd rotating part 1812 assembled to be relatively rotatable with the connection cable guide 1830.

The cable guide body 1815 is longer than its width. A cross section orthogonal to the longitudinal direction of the cable guide body 1815 is formed in a “∪” shape, and the cable insertion space 1813 is formed inside. The cable insertion space 1813 of the first cable guide 1810 opens upward.

The 1-1 rotation part 1811 protrudes upward from the upper end of the cable guide body 1815. The 1-1 rotation part 1811 is hinged to the door cover housing 1220 and can rotate relative to the door cover housing 1220.

When the door cover housing 1220 is moved upward or downward, the first cable guide 1810 rotates relative to the 1-1 rotation part 1811 as a center.

The 1-2 rotation unit 1812 has the same structure as the 1-1 rotation unit 1811. The first and second rotation parts 1812 protrude downward from the lower end of the cable guide body 1815. The 1st-2nd rotating part 1812 is hingedly connected to the upper side of the connection cable guide 1830 and can rotate relative to the connection cable guide 1830.

The second cable guide 1820 includes a cable guide body 1825, a cable insertion space 1823 disposed inside the cable guide body 1825 and into which a cable is inserted, a 2-1 rotation part 1821 disposed on one side of the cable guide body 1825 and assembled to be relatively rotatable with the connection cable guide 1830, and the other side of the cable guide body 1825. and a 2-2 rotation part 1822 that is disposed on and assembled to be relatively rotatable with the panel module 1100 (upper panel module in this embodiment).

Since the configuration of the second cable guide 1820 is similar to that of the first cable guide 1810, detailed descriptions are replaced with drawings.

The connection cable guide 1830 includes a cable guide body 1835, a cable insertion space 1833 disposed inside the cable guide body 1835 and into which a cable is inserted, a 3-1 rotation part 1831 disposed on one side of the cable guide body 1835 and assembled to be relatively rotatable with the first cable guide 1810, and the other side of the cable guide body 1835. It includes a 2-2 rotation part 1832 disposed on the side and assembled to be relatively rotatable with the second cable guide 1820.

Since the configuration of the connection cable guide 1830 is similar to that of the first cable guide 1810, detailed descriptions are replaced with drawings. A first pin 1841 for assembling the 1-1 rotation part 1811 and the door cover housing 1220 to be relatively rotatable is disposed. A second pin 1842 for assembling the 1-2 rotation unit 1812 and the 2-1 rotation unit 1821 to be relatively rotatable is disposed. A third pin 1843 for assembling the 2-2nd rotating part 1822 and the 3-1st rotating part 1831 to be relatively rotatable is disposed. A fourth pin 1844 for assembling the 3-2 rotation part 1832 and the control upper panel module 1110 to be relatively rotatable is disposed.

The first cable guide 1810 and the connection cable guide 1830 form an angle of less than 180 degrees, and when the door cover assembly 1200 is lowered, the first cable guide 1810 and the connection cable guide 1830. The angle between them becomes smaller.

The second cable guide 1820 and the connection cable guide 1830 form an angle of less than 180 degrees, and when the door cover assembly 1200 is lowered, the angle between the second cable guide 1820 and the connection cable guide 1830 becomes smaller.

Since the 2-2 rotation part 1822 is installed on the upper panel module 1110, its position is fixed without being moved.

When the door cover assembly 1200 is lowered, the position of the 1-1st rotation part 1811, the 1-2nd rotation part 1812, the 3-1st rotation part 1831, the 3-2nd rotation part 1832, and the 2-1st rotation part 1821 can move up and down.

The cable is connected to the door cover motor 1610 of the door cover assembly 1200 and the gear driving motor 1720 of the door housing moving module 1700. The cable may provide power and control signals to the door cover motor 1610 or the gear driving motor 1720, respectively.

<<Composition of door slide module>>

The door slide module 1300 is for moving the door assembly 200 in the left and right directions of the cabinet assembly 100 . The door slide module 1300 may reciprocate the door assembly 200 in the left and right directions.

The door slide module 1300 is installed in either the door assembly 200 or the cabinet assembly 100 and implements slide movement through mutual interference with the other one.

The door slide module 1300 includes a rack 1310 disposed on the door assembly 200 and elongated in the left and right directions, a gear assembly 1330 disposed on a structure on the side of the cabinet assembly 100, meshed with the rack 1310, and moving along the rack 1310 during rotation, disposed on a structure on the side of the cabinet assembly 100, and the gear assembly 133 0) and a gear housing 1380 disposed on a structure on the side of the cabinet assembly 100 and in which the gear assembly 1330 and the gear driving motor 1320 are installed.

<<SIDE MOVING ASSEMBLY>>

In the indoor unit according to the present embodiment, a side moving assembly 1400 may be further disposed to guide left and right sliding of the door assembly 200 and support a load of the door assembly 200 .

The side moving assembly 1400 is disposed on the door assembly 200 and the cabinet assembly 100 and guides the left and right movement of the door assembly 200 .

When the door slide module 1300 is operated, the side moving assembly 1400 guides the sliding movement of the door assembly 200. Although the sliding movement of the door assembly 200 can be implemented only by the operation of the rack 1310 and the gear assembly 1330 of the door slide module 1300, there is a limit to implementing natural sliding movement.

In this embodiment, the side moving assembly 1400 is disposed on the upper, middle and lower sides of the door assembly 200, respectively.

The side moving assembly 1400 includes a top rail 1410 disposed above the door assembly 200, a middle rail 1420 disposed in the middle of the door assembly 200, a bottom rail 1430 disposed below the door assembly 200, and assembled to the door assembly 200. A top supporter 1440 disposed on the side and spanning the upper side of the cabinet assembly 100, and a bottom supporter 1450 assembled to the cabinet assembly 100, disposed below the cabinet assembly 100, and spanning the lower end of the door assembly 200.

The top rail 1410, middle rail 1420, and bottom rail 1430 are all disposed in the left and right directions. The top rail 1410 , the middle rail 1420 , and the bottom rail 1430 are disposed between the door assembly 200 and the cabinet assembly 100 .

The top rail 1410 includes a first top rail 1412 and a second top rail 1414 .

The first top rail 1412 is disposed on the rear surface of the door assembly 200 . The first top rail 1412 is disposed in the left and right directions. The first top rail 1412 may be disposed on the rear surface of the upper panel module 1110 of the door assembly 200 .

The second top rail 1414 is assembled on the front surface of the cabinet assembly 100 and can move relative to the first top rail 1412 in the left and right directions.

In this embodiment, the second top rail 1414 is coupled to the top supporter 1440, and the top supporter 1440 is fixed to the cabinet assembly 100.

The first top rail 1412 and the second top rail 1414 are assembled to be relatively movable. A bearing 1415 may be disposed between the first top rail 1412 and the second top rail 1414, and the bearing may reduce frictional force during relative movement of the first top rail 1412 and the second top rail 1414.

The middle rail 1420 includes a first middle rail 1422 and a second middle rail 1424 .

The first middle rail 1422 is disposed on the rear surface of the door assembly 200 . The first middle rail 1422 is disposed in the left and right directions. The first middle rail 1422 may be disposed on the rear surface of the lower panel module 1120 of the door assembly 200 .

The second middle rail 1424 is assembled on the front surface of the cabinet assembly 100 and can move relative to the first middle rail 1422 in the left and right directions.

The first middle rail 1422 and the second middle rail 1424 are assembled to be relatively movable. A bearing (not shown) may be disposed between the first middle rail 1422 and the second middle rail 1424, and the bearing may reduce frictional force during relative movement of the first middle rail 1422 and the second middle rail 1424.

The bottom rail 1430 includes a first bottom rail 1432 and a second bottom rail 1434.

The first bottom rail 1432 is disposed on the rear surface of the door assembly 200 . The first bottom rail 1432 is disposed in the left and right directions. The first bottom rail 1432 may be disposed on the rear surface of the lower panel module 1120 of the door assembly 200 .

The second bottom rail 1434 may be assembled to a structure disposed on the front side of the cabinet assembly 100 (a bottom supporter in this embodiment), and may move relative to the first bottom rail 1432 in the left and right directions.

The first bottom rail 1432 and the second bottom rail 1434 are assembled to be relatively movable. A bearing (not shown) may be disposed between the first bottom rail 1432 and the second bottom rail 1434, and the bearing may reduce frictional force during relative movement of the first bottom rail 1432 and the second bottom rail 1434.

When the door assembly 200 is moved in the left and right directions by the door slide module 1300, the top supporter 1440 and the bottom supporter 1450 are positioned in place while supporting the weight of the door assembly 200.

The top supporter 1440 distributes the load of the door assembly 200 to the upper side of the cabinet. The bottom supporter 1450 supports the lower side of the door assembly 200 and reduces friction when the door assembly 200 slides left and right.

The top supporter 1440 is disposed on the door assembly 200 side structure (in this embodiment, a top fixing part 1442 assembled to the second top rail 1414, a top lay part 1444 that protrudes from the top fixing part 1442 toward the cabinet assembly 100 and spans the cabinet assembly 100, and is disposed on the top lay part 1444). (100) and a top hooking portion 1446 forming mutually engaging with respect to the front and rear directions.

The top fixing part 1442 extends long in the left and right directions of the door assembly 200 . The top fixing part 1442 may be assembled in close contact with the door assembly 200 . In this embodiment, the top fixing part 1442 is assembled to the structure on the side of the door assembly 200, and is fastened to the second top rail 1414 in this embodiment.

The top fixing part 1442 is located behind the second top rail 1414 .

The top lay part 1444 and the top fixing part 1442 are integrally manufactured. The top fixing part 1442 and the top lay part 1444 may be manufactured by bending one plate.

The top lay part 1444 protrudes from the top fixing part 1442 to the rear side.

In this embodiment, the top lay part 1444 protrudes rearward from the upper edge of the top fixing part 1442 .

The top lay part 1444 may be fixed to the upper side of the cabinet assembly 100 .

When the door assembly 200 is moved left and right, the top lay part 1444 and the second top rail 1414 are positioned in place, and only the first top rail 1412 and the door assembly 200 are relatively moved in the left and right directions.

The top hooking portion 1446 is formed in the left and right directions and hooks the cabinet assembly 100 in the front and rear directions.

The top hanging portion 1446 is formed by protruding downward from the top lay portion 1444 .

In this embodiment, the top hooking portion 1446 has a shape of a groove concave downward, and extends along the longitudinal direction of the top lay portion 1444 . The top hooking part 1446 is formed with a hooking part groove 1446a that opens upward, and the hooking part groove 1446a extends long in the left and right directions.

The top lay part 1444 includes a first top lay part 1444a positioned at a front side with respect to the top hanging part 1446 and a second top laid part 1444b positioned at a rear side with respect to the top hanging part 1446.

The top hanging part 1446 is positioned between the first top lay part 1444a and the second top lay part 1444b.

The top hooking part 1446 is inserted into the upper side of the cabinet assembly 100, and a top supporter installation part (not shown) that mutually hooks with the top hooking part 1446 is disposed.

FIG. 28 is a partially cut-away perspective view of the remote fan assembly shown in FIG. 12 . 29 is a front view of the remote fan assembly shown in FIG. 28; Fig. 30 is a right side view of Fig. 29; 31 is an exploded perspective view of FIG. 28; Fig. 32 is an exploded perspective view seen from the rear side of Fig. 31; 33 is an exploded perspective view of the fan housing assembly shown in FIG. 31; 34 is a perspective view of the front fan housing shown in FIG. 33; Fig. 35 is a front view of Fig. 34; Fig. 36 is a rear view of Fig. 35; 37 is a perspective view of the guide rail shown in FIG. 31; 38 is a cross-sectional view of the air guide shown in FIG. 31 before operation.

<<Configuration of remote fan assembly>>

The remote fan assembly 400 is movable in a forward and backward direction with respect to the cabinet assembly 100 . The remote fan assembly 400 discharges air to the front of the door assembly 200 and provides direct wind to the room.

The remote fan assembly 400 penetrates the front discharge port 201 of the door assembly 200 only during operation and protrudes forward from the front surface 200a of the door assembly 200 to form a projection state.

The remote fan assembly 400 is disposed inside the cabinet assembly 100 and moves forward and backward inside the cabinet assembly 100 only during operation.

The remote fan assembly 400 is disposed at the front of the heat exchange assembly 500 and at the rear of the door assembly 200 . The remote fan assembly 400 is disposed above the local fan assembly 300 and is located below the upper wall of the cabinet assembly 100 .

The remote fan assembly 400 discharges air through the front discharge port 201 formed in the door assembly 200, and the steering grill 3450 of the remote fan assembly 400 is located in front of the front discharge port 201.

By positioning the steering grill 3450 outside the front discharge port 201, air resistance due to structures such as the cabinet assembly 100 or the door assembly 200 can be minimized.

The remote fan assembly 400 provides a tiltable structure in up, down, left, right or diagonal directions. The remote fan assembly 400 can discharge air to the far side of the indoor space and improve the circulation of indoor air.

The remote fan assembly 400 includes a guide housing (an upper guide housing and a lower guide housing described later in this embodiment) disposed inside the cabinet assembly, a fan housing assembly 3400 movably assembled to the gas housing and discharging air in the internal space S to the front discharge port, and the cabinet assembly 100 or the guide housing, , and an actuator 3470 for moving the fan housing assembly along the guide housing.

The guide housing is assembled with an upper guide housing 3520 disposed in front of the heat exchange assembly 500 and having a guide housing inlet 3521 through which air passing through the heat exchange assembly 500 is introduced, and the upper guide housing 3520, the front fan housing 3430 is disposed on the upper side, and the front fan housing 3430 moves forward and backward. It includes a lower guide housing 3460 for guiding.

The fan housing assembly 3400 includes a rear fan housing 3410 in which a fan inlet 3411 communicating with the guide housing inlet 3521 is formed and disposed inside the upper guide housing 3520, and a fan 3 disposed in front of the rear fan housing 3410 and discharging air sucked in from the fan inlet 3411 in a cross-flow direction. 420), a front fan housing 3430 disposed in front of the rear fan housing 3410, coupled to the rear fan housing 3410, disposed in front of the fan 3420, assembled with the fan 3420, and guiding the air pressurized by the fan 3420 in the direction of a cross flow, disposed in front of the front fan housing 3430, and a motor shaft 3 441) passes through the front fan housing 3430 and is assembled with the fan 3420, and the fan motor 3440 for rotating the fan 3420 is located in front of the front fan housing 3430 and the fan motor 3440, is tiltable in an arbitrary direction with respect to the front fan housing 3430, and discharges air guided through the front fan housing 3430 A steering grill 3450 for controlling direction and a steering assembly 1000 disposed between the front fan housing 3430 and the steering grill 3450 and steering the steering grill 3450 with respect to the central axis C1 of the steering grill 3450 by pushing or pulling the steering grill 3450.

The rear fan housing 3410 and the front fan housing 3430 are defined as fan housings.

The actuator 3470 is disposed in either the front fan housing 3430 or the lower guide housing 3460, and provides a driving force when the front fan housing 3430 moves in the forward and backward directions.

The remote fan assembly 400 has an air guide 3510 that is opened in the front-back direction, connects the rear fan housing 3410 and the upper guide housing 3520, guides the air sucked in from the guide housing intake 3521 to the fan intake 3411, and is formed of an elastic material and expands or contracts when the front fan housing 3430 moves in the front-back direction. contains more

For convenience of explanation, the fan housing assembly 3400 is defined as a remote fan assembly 400 that is moved in the forward and backward directions by the actuator 3470. The fan housing assembly 3400 includes a rear fan housing 3410, a front fan housing 3430, a fan 3420, a steering grill 3450, a fan motor 3440, and a steering assembly 1000.

The fan housing assembly 3400 may be moved forward and backward by an actuator 3470. To smoothly implement the sliding movement of the front fan housing 3430, a first guide rail 3480 and a second guide rail 3490 may be further disposed between the front fan housing 3430 and the lower guide housing 3460.

The lower guide housing 3460 and the upper guide housing 3520 are fixed structures, and may be fixed to either the cabinet assembly 100 or the short-distance fan assembly 300 .

The air passing through the heat exchange assembly 500 passes through the guide housing inlet 3521, the fan inlet 3411, the fan 3420, and the front fan housing 3430, and then is discharged from the steering grill 3450.

The upper guide housing 3520 and the lower guide housing 3460 may be integrally manufactured. The upper guide housing 3520 and the lower guide housing 3460 manufactured integrally may be defined as the guide housing.

The front side of the guide housing is opened for forward and backward movement of the fan housing assembly 3400, and a guide housing inlet 3521 is disposed at the rear side for air intake.

In this embodiment, for the structure of moving the fan housing assembly 3400 in the forward and backward directions, the upper guide housing 3520 and the lower guide housing 3460 are manufactured and then assembled.

<Configuration of upper guide housing>

The upper guide housing 3520 constitutes an upper part of the guide housing. The upper guide housing 3520 is configured to surround the fan housing assembly 3400. The upper guide housing 3520 is configured to guide air passing through the heat exchange assembly 500 to the fan housing assembly 3400.

The upper guide housing 3520 blocks air passing through the heat exchange assembly 500 from flowing to the steering grill 3450 through other passages except for the guide housing inlet 3521 .

The guide housing inlet 3521 provides a unified flow path for guiding cooled air to the steering grill 3450, and through this, contact of the cooled air to the door assembly 200 is minimized.

The upper guide housing 3520 is preferably formed with a width capable of covering the entire surface of the heat exchange assembly 500 . In this embodiment, since the short-distance fan assembly 300 is disposed, the upper guide housing 3520 is formed in a shape and area capable of covering the remaining area of the upper side not covered by the short-distance fan assembly 300 .

The upper guide housing 3520 is assembled to the lower guide housing 3460 and disposed above the lower guide housing 3460. Through fastening, the upper guide housing 3520 and the lower guide housing 3460 are integrated.

The fan housing assembly is disposed inside the upper guide housing 3520 and the lower guide housing 3460, and is installed to be movable in the forward and backward directions with respect to the upper guide housing 3520 and the lower guide housing 3460.

The upper guide housing 3520 has a rectangular parallelepiped shape as a whole, and has open front and rear surfaces.

The upper guide housing 3520 includes a rear wall 3522 in which a guide housing inlet 3521 is formed, a left wall 3523 and a light wall 3524 protruding forward from the side edge of the rear wall 3522, and a top wall 3525 protruding forward from the upper edge of the rear wall 3522.

The guide housing inlet 3521 penetrates the rear wall 3522 in the front-rear direction. The guide housing inlet 3521 is formed in a circular shape when viewed from the front. The guide housing inlet 3521 is larger than the fan inlet 3411. The fan inlet 3411 is also formed in a circular shape when viewed from the front. The diameter of the guide housing inlet 3521 is greater than the diameter of the fan inlet 3411.

The left wall 3523 is located on the left side when viewed from the front, and the light wall 3524 is located on the right side. The left wall 3523 and the right wall 3524 are disposed to face each other.

The top wall 3525 connects the rear wall 2522 , the left wall 3523 , and the light wall 3524 . The fan housing assembly is positioned below the top wall 3525.

When not operating, the fan housing assembly is positioned between the left wall 3523, the right wall 3524 and the top wall 3525. During operation, the fan housing assembly is moved forward.

It is preferable that the rear fan housing 3410 is positioned inside the upper guide housing 3520 even when the fan housing assembly moves forward at its maximum. In this embodiment, when the fan housing assembly moves forward at its maximum, the rear end 3410b of the rear fan housing 3410 is located rearward than the front ends 3523a and 3524a of the left wall 3523 and the light wall 3524.

When the fan housing assembly moves out of the upper guide housing 3520 during operation, it may form a jam with the upper guide housing 3520 when an external impact is received in the process of returning to the initial position, thereby failing to return to the initial position.

In addition, when the fan housing assembly moves out of the upper guide housing 3520, a flow distance of air flowing from the guide housing inlet 3521 to the fan inlet 3411 may increase.

A fixing part 3526 for fixing the air guide 3510 is formed on the rear wall 3522 . The fixing part 3526 protrudes forward from the front surface of the rear wall 3522 . A plurality of fixing parts 3526 are disposed, and each fixing part 3526 is located outside the guide housing inlet 3521. In this embodiment, the fixing part 3526 is disposed in four places.

In this embodiment, the lower surface 3527 of the upper guide housing 3520 is open. Unlike the present embodiment, the bottom surface 3527 can also be manufactured in a closed form.

In this embodiment, the lower guide housing 3460 is disposed below the upper guide housing 3520, and since the lower guide housing 3460 closes the lower surface 3527, the lower surface 3527 may be manufactured in an open form.

Preferably, the rear wall 3522 is wider than the width of the left and right sides of the heat exchange assembly 500, and the air passing through the heat exchange assembly 500 is introduced only through the guide housing inlet 3521.

When the width of the rear wall 3522 is narrower than that of the heat exchange assembly 500, air passing through the heat exchange assembly 500 may flow toward the door assembly 200 through the outside of the remote fan assembly 400. In the case of this structure, when cooling, cold air cools the door assembly 200 and may cause dew formation.

It is preferable that the front surfaces of the rear wall 3522 and the heat exchange assembly 500 face each other, and the rear wall 3522 adheres to the front surface of the heat exchange assembly 500 as much as possible. Adhering the rear wall 3522 to the front surface of the heat exchange assembly 500 is effective in flowing the heat-exchanged air to the guide housing inlet 3521.

Lengths of the left wall 3523, the right wall 3524, and the top wall 3525 in the front-back direction are defined as F1.

A guide groove 3550 is formed in at least one of the left wall 3523 and the right wall 3524, respectively. The guide groove 3550 is formed in the front-rear direction.

The guide groove 3550 supports the fan housing assembly 3400 and guides the forward and backward movement of the fan housing assembly 3400 .

The guide groove 3550 formed in the left wall 3523 is defined as a first guide groove 3551, and the guide groove 3550 formed in the light wall 3524 is defined as a second guide groove 3552.

The first guide groove 3551 is concave toward the left wall 3523 in the storage space S1. The second guide groove 3552 is concavely formed toward the light wall 3524 in the storage space S1.

The first guide groove 3551 is formed on the inner surface of the left wall 3523, extends long in the front-back direction, and opens toward the inner space S1. The second guide groove 3552 is formed on the inner surface of the light wall 3524, extends long in the front-back direction, and opens toward the inner space S1.

The first guide groove 3551 includes a bottom surface 3551a, a side surface 3551b, and an upper surface 3551c, and the second guide groove 3552 includes a bottom surface 3552a, a side surface 3552b, and an upper surface 3552c.

The bottom surface 3551a of the first guide groove 3551 and the bottom surface 3552a of the second guide groove 3552 support the load of the fan housing assembly 3400 .

The first guide roller 3553 and the second guide roller 3554 of the fan housing assembly 3400 described later move in the forward and backward directions along the first guide groove 3551 and the second guide groove 3552.

The first guide groove 3551 and the second guide groove 3552 provide a moving space for the first guide roller 3553 and the second guide roller 3554, and support the first guide roller 3553 and the second guide roller 3554.

<Configuration of lower guide housing>

The lower guide housing 3460 constitutes a lower part of the guide housing. The lower guide housing 3460 movably mounts the fan housing assembly 3400 and guides the fan housing assembly 3400 forward and backward.

There is no particular restriction on the shape of the lower guide housing 3460, and any shape capable of supporting the fan housing assembly 3400 and guiding forward and backward movement is sufficient.

The lower guide housing 3460 is assembled with the upper guide housing 3520 to form a storage space S1 in which the fan housing assembly 3400 is accommodated. In this embodiment, only the rear side of the fan housing assembly 3400 is accommodated, and the front side may be exposed outside the storage space S1. Unlike the present embodiment, the storage space S1 may be a space sufficient to accommodate the entire fan housing assembly 3400.

In this embodiment, the lower guide housing 3460 is disposed above the fan casing 320.

The lower guide housing 3460 is longer in the front-rear direction than the upper guide housing 3520. This is because the lower guide housing 3460 supports the fan housing assembly 3400 and guides the movement of the fan housing assembly 3400 in the forward and backward directions. The length of the lower guide housing 3460 in the front-rear direction is defined as F2. The front-rear direction length F2 of the lower guy housing 3460 is longer than the front-rear direction length F1 of the upper guide housing 3520.

The lower guide housing 3460 closes the lower surface of the upper guide housing 3520, and the fan housing assembly 3400 is movably mounted on the upper side. The fan housing assembly 3400 may be moved forward and backward by an actuator 3470 while being mounted on the lower guide housing 3460.

The lower guide housing 3460 includes a housing base 3462 disposed below the fan housing assembly 3400, a left side wall 3463 and a light side wall 3464 extending upward from both edges of the housing base 3462, and at least one of the housing base 3462, the left side wall 3463, and the light side wall 3464, A stopper 3465 for limiting the forward movement of the fan housing assembly 3400, a base guide 3467 disposed on the housing base 3462, interfering with the fan housing assembly 3400 (front fan housing in this embodiment) and guiding forward and backward movement of the fan housing 3400, and the left side wall 3463 and the light side wall 3464. A cable penetration part 3461 disposed on at least one side, having a long hole shape formed in the front and rear direction, and through which a cable (not shown) coupled to the actuator 3470 passes.

In this embodiment, the lower guide housing 3460 connects the housing base 3462, the left side wall 3463, and the light side wall 3464, and includes the housing base 3462, the left side wall 3463, and the housing rear wall 3466 disposed on the rear side of the light side wall 3464. The housing rear wall 3466 serves as a stopper to limit the rearward movement of the fan housing assembly 3400.

The housing rear wall 3466 faces the rear wall 3522 of the upper guide housing 3520 and is located in front of the rear wall 3522 .

The upper end 3466a of the housing rear wall 3466 is formed in the same line as the guide housing inlet 3521. That is, the upper end 3466a of the housing rear wall 3466 has the same curvature radius as that of the guide housing inlet 3521. In the front-back direction, the upper end 3466a of the housing rear wall 3466 is formed so as not to cover the guide housing inlet 3521.

The housing rear wall 3466 connects the housing base 3462, the left side wall 3463, and the right side wall 3464 to improve the rigidity of the lower guide housing 3460, and prevents the fan housing assembly 3400 from moving excessively to the rear side.

The stopper 3465 is disposed forward of the housing rear wall 3466. In this embodiment, stoppers 3465 are disposed on the left and right sides of the housing base 3562, respectively. One of the stoppers 3465 is disposed to connect the housing base 3462 and the left side wall 3463, and the other is disposed to connect the housing base 3462 and the light side wall 3464.

When the fan housing assembly 3400 is excessively moved forward, it is supported by the stopper 3465 and the movement of the fan housing assembly 3400 is stopped.

The cable penetration part 3461 connects the outer and inner storage spaces S1 of the guide housing.

The cable penetration part 3461 is formed on the left side wall 3463 and the right side wall 3464, respectively. Each of the cable penetration parts 3461 passes through the left side wall 3463 and the right side wall 3464 in the left and right directions. The cable penetration part 3461 extends long in the front-rear direction. The cable penetration part 3461 provides a space for the cable to move in the forward and backward directions along with the fan housing assembly 3400 . In this embodiment, the cable penetration part 3461 is formed with a length corresponding to the forward and backward movement distance of the fan housing assembly 3400.

If the cable penetration part 3461 is formed to a short length that does not correspond to the movement distance of the fan housing assembly 3400, the connection with the actuator 3470 may be disconnected.

The cable penetration part 3461 is formed to extend long in the front and rear directions, and communicates the inside and outside of the lower guide housing 3460. The cable penetration part 3461 provides a space in which the wiring connected to the guide motor can also move in the forward and backward directions when the fan housing assembly moves. Since wires can be moved along the cable penetration part 3461, connection reliability with the guide motor 3472 is provided.

A fastening part 3468 for coupling with the fan casing 320 of the short-distance fan assembly is formed in the lower guide housing 3460 . The fastening part 3468 is formed on the housing base 3462.

The base guide 3467 is formed in the front-rear direction, which is the moving direction of the fan housing assembly 3400. Two base guides 3467 are disposed, one disposed on the left side wall 3463 side and the other disposed on the right side wall 3464 side.

The base guide 3467 protrudes upward from the upper side of the housing base 3462. The base guide 3467 is inserted into the groove formed on the bottom of the front fan housing 3430. The base guide 3467 limits left and right movement of the fan housing assembly 3400.

<Configuration of rear fan housing>

The rear fan housing 3410 forms a rear surface of the fan housing assembly. The rear fan housing 3410 is disposed in front of the heat exchange assembly 500 .

In this embodiment, the rear fan housing 3410 is located in front of the upper guide housing 3520, and more specifically, in front of the rear wall 3522. The rear fan housing 3410 is located inside the upper guide housing 3520.

The rear fan housing 3410 includes a rear fan housing body 3412 covering the rear surface of the front fan housing 3430, a fan inlet 3411 disposed inside the rear fan housing body 3412 and penetrating in the front-rear direction, and a fastening disposed on the rear fan housing body 3412 and coupled with the front fan housing 3430 section 3414.

A plurality of fastening parts 3414 are disposed for assembly with the front fan housing 3430. The fastening part 3414 protrudes outward from the rear fan housing body 3412 in the radial direction.

When viewed from the front, the rear fan housing 3410 has a donut shape with a fan inlet 3411 formed therein. In particular, the rear fan housing body 3412 is formed in a donut shape when viewed from the front.

The rear fan housing 3410 surrounds the fan 3420 together with the front fan housing 3430. The fan 3420 is disposed between the rear fan housing 3410 and the front fan housing 3430.

The rear fan housing 3410 covers the rear surface of the front fan housing 3430 and is assembled to the rear end of the front fan housing 3430.

The rear fan housing 3410 is disposed in a vertical direction with respect to the ground. The rear fan housing 3410 is disposed to face the front surface of the heat exchange assembly 500 .

The fan inlet 3411 is parallel to the guide housing inlet 3521 and is disposed to face each other. The diameter of the fan inlet 3411 is smaller than that of the guide housing inlet 3521. The air guide 3510 is disposed to connect the fan inlet 3411 and the guide housing inlet 3521. The fan inlet 3411 is disposed toward the front of the heat exchange assembly 500 .

The rear fan housing body 3412 is concave from the front to the rear.

The air guide 3510 is disposed behind the rear fan housing 3410 and coupled to the rear surface of the rear fan housing 3410. In particular, the air guide 3510 is assembled to the rear fan housing body 3412 and is disposed to surround the fan inlet 3411.

<Configuration of front fan housing>

The front fan housing 3430 is formed in a cylindrical shape, is open in the front-rear direction, and provides a flow path structure for guiding the air flowed by the fan 3420 to the steering grill 3450. In addition, in this embodiment, the fan motor 3440 is assembled to the front fan housing 3430, and the front fan housing 3430 provides an installation structure for installing the fan motor 3440.

The fan motor 3440 is positioned at the front of the front fan housing 3430, the fan 3420 is positioned at the rear, and the lower guide housing 3460 is positioned at the lower side of the front fan housing 3430.

The front fan housing 3430 is assembled to the lower guide housing 3460 and is movable in a forward and backward direction with respect to the lower guide housing 3460.

The front fan housing 3430 includes an outer fan housing 3432 that is open in the front-back direction and formed in a cylindrical shape, an inner fan housing 3434 that is open toward the front, disposed inside the outer fan housing 3432, and in which the fan motor 3440 is installed, and a base connecting the outer fan housing 3432 and the inner fan housing 3434. A phosphorus 3436 and a motor installation part 3448 disposed on the inner fan housing 3434 and into which the fan motor 3440 is assembled.

The outer fan housing 3432 is formed in a cylindrical shape with open front and rear surfaces, and the inner fan housing 3434 is disposed therein. The outer fan housing 3432 may be moved forward and backward by receiving a driving force from the actuator 3470 .

An open front surface of the outer fan housing 3432 is defined as a first fan opening surface 3431. In this embodiment, the first fan opening 3431 is formed in a circular shape when viewed from the front. A rear end of the steering grill 3450 may be inserted into the first fan opening 3431 .

The inside of the outer fan housing 3432 opened in the front-back direction is defined as a space S2. The first fan opening 3431 forms the front surface of the space S2.

The inner fan housing 3434 has an open front surface and has a bowl shape concave from the front side to the rear side. A concave inside of the inner fan housing 3434 is defined as a space S3. The fan motor 3440 is disposed in the space S3 and fastened and fixed to the inner fan housing 3434.

The open front surface of the inner fan housing 3434 is defined as a second fan opening surface 3433. The second fan opening surface 3433 may be formed in various shapes. In this embodiment, the second fan opening 3433 is formed in a circular shape in consideration of air flow.

The second fan opening surface 3433 forms the front surface of the space S3. The first fan opening surface 3431 is located in front of the second fan opening surface 3433. The second fan opening surface 3433 is located inside the first fan opening surface 3431 .

The first fan opening surface 3431 and the second fan opening surface 3433 are spaced apart in the front-rear direction, thereby providing a space through which the steering grill 3450 can be tilted. The rear end of the steering grill 3450 may be positioned between the first fan opening surface 3431 and the second fan opening surface 3433.

A motor installation part 3438 is disposed on the inner fan housing 3434 to fasten and fix the fan motor 3440 .

The motor installation part 3438 is disposed in the space S3 and protrudes forward from the inner fan housing 3434. The fan motor 3440 further includes a motor mount 3442 , and the motor mount 3442 is fastened to the motor installation part 3438 .

The motor installation part 3438 is disposed on the inner fan housing 3434. The motor installation parts 3438 are arranged at regular intervals based on the central axis C1.

The motor shaft of the fan motor 3440 passes through the inner fan housing 3434 and is disposed toward the rear, and is coupled with the fan 3420 disposed at the rear of the inner fan housing 3434. A shaft hole 3437 through which a motor shaft of the fan motor 3440 passes is formed in the inner fan housing 3434 .

Since the fan motor 3440 is disposed in front of the inner fan housing 3434 and inserted into the space S3, interference with the discharged air can be minimized.

In particular, a steering base 1070 to be described later is coupled to the inner fan housing 3434 and closes the space S3. Since the fan motor 3440 is disposed outside the flow path of the discharge air, resistance with the discharge air can be minimized. In particular, since the fan motor 3440 is located in front of the inner fan housing 3434, resistance with air sucked in from the rear can be eliminated.

A fastening boss 3439 for fixing the steering base 1070 and supporting the steering base 1070 is formed in the inner fan housing 3434 . The fastening bosses 3439 are arranged at three locations, and are arranged at equal intervals with respect to the central axis C1.

The fastening boss 3439 and the motor installation part 3438 are disposed inside the space S3. When assembling the steering base 1070 and the fastening boss 3439 , the motor installation part 3438 is concealed by the steering base 1070 .

The inner fan housing 3434 and the outer fan housing 3432 are spaced apart from each other by a predetermined distance, and the vane 3436 connects the outer fan housing 3432 and the inner fan housing 3434 integrally.

The outer fan housing 3432, the inner fan housing 3434, and the vane 3436 add straightness to the air discharged from the fan 3420.

Meanwhile, a first guide roller 3553 and a second guide roller 3554 are disposed outside the front fan housing 3430.

The first guide roller 3553 and the second guide roller 3554 move forward and backward along the first guide groove 3551 and the second guide groove 3552 disposed in the upper guide housing 3520.

The first guide roller 3553 is inserted into the first guide groove 3551, moves forward and backward along the first guide groove 3551, and is supported by the first guide groove 3551.

The second guide roller 3554 is inserted into the second guide groove 3552, moves forward and backward along the second guide groove 3552, and is supported by the second guide groove 3552.

The first guide roller 3553 includes a roller shaft coupled to the front fan housing 3430 and a roller rotatably coupled to the roller shaft. The roller shaft is disposed in the left-right direction.

The second guide roller 3554 includes a roller shaft coupled to the front fan housing 3430 and a roller rotatably coupled to the roller shaft. The roller shaft is disposed in the left-right direction.

The roller shaft of the first guide roller 3553 and the roller shaft of the second guide roller 3554 are arranged in a line.

The first guide roller 3553 is disposed on the left side of the front fan housing 3430, and the second guide roller 3554 is disposed on the right side of the front fan housing 3430.

The fan housing assembly 3400 is supported by the first guide roller 3553 and the second guide roller 3554, and the lower end of the fan housing assembly 3400 is spaced apart from the housing base 3462 of the lower guide housing 3460.

When the first guide roller 3553 and the second guide roller 3554 are missing, the load of the fan housing assembly 3400 is transferred to the actuator 3470, and the actuator 3470 must move the fan housing assembly 3400 forward or backward while supporting the load of the fan housing assembly 3400.

Since the lower end of the fan housing assembly 3400 is spaced apart by the support of the first guide roller 3553 and the second guide roller 3554, the operating load of the actuator 3470 can be reduced.

When the fan housing assembly 3400 moves forward, the front end 3430a of the front fan housing 3430 may be inserted into the door assembly 200 and placed therein. More specifically, the front fan housing 3430 is inserted into the front discharge port 201, and the front end 3430a is located inside the door assembly 200. The front end 3430a is located at a rear side of the front surface 200a of the door assembly 200.

<Composition of fan>

The fan 3420 is disposed between the rear fan housing 3410 and the front fan housing 3430. The fan 3420 is disposed inside the assembled rear fan housing 3410 and front fan housing 3430 and is rotated inside.

The fan 3420 discharges the air sucked through the fan inlet 3411 in a cross-flow direction. The fan 3420 sucks in air through a fan inlet 3411 disposed at the rear and discharges air in a circumferential direction. Here, the discharge direction of the air discharged through the fan housing assembly is a cross flow direction. In this embodiment, the crossflow direction means between forward and circumferential directions.

<Configuration of air guide and air guide bracket>

The air guide 3510 couples the fan housing assembly 34000 and the guide housing (upper guide housing in this embodiment), and connects the guide housing inlet 3521 and the fan inlet 3411.

The air guide 3510 is opened in the front-rear direction, and air flows into it. Specifically, the air guide 3510 connects the rear fan housing 3410 and the upper guide housing 3520, and guides air sucked in from the guide housing intake 3521 to the fan intake 3411.

The air guide 3510 is made of an elastic material and can be expanded or contracted when the front fan housing 3430 moves in the forward and backward direction.

Since the air guide 3510 is made of an elastic material, a separate configuration is required to fix it to the guide housing and fan housing assembly 3400.

The remote fan assembly 400 further includes a first air guide bracket 3530 fixing the air guide 3510 to the guide housing (upper guide housing in this embodiment) and a second air guide bracket 3540 fixing the air guide 3510 to the fan housing assembly 3400 (rear fan housing in this embodiment).

The air guide 3510 is made of an elastic material and may be formed in a cylindrical shape.

In the air guide 3510, an air guide outlet 3511 is formed on the front side (the fan housing assembly side in this embodiment), and an air guide inlet 3513 is formed on the rear side (the guide housing side in this embodiment).

The diameter of the air guide outlet 3511 may be G1, and the diameter of the air guide inlet 3513 may be G2. Although G1 and G2 may be the same, in this embodiment, G2 is larger than G1.

The size of G1 corresponds to the size of the fan inlet 3411, and the size of G2 corresponds to the size of the guide housing inlet 3521.

In this embodiment, it is preferable that G1 is formed larger than the diameter of the fan inlet 3411, and the entire fan inlet 3411 is located inside the air guide outlet 3511.

Similarly, the G2 is preferably formed larger than the diameter G4 of the guide housing inlet 3521.

The first air guide bracket 3530 fixes the rear end 3514 of the air guide 3510 to the guide housing (upper guide housing in this embodiment). The second air guide bracket 3540 fixes the front end 3512 of the air guide 3510 to the fan housing assembly 3400.

The first air guide bracket 3530 includes a bracket body 3532 formed in a ring shape, and a bracket fastening portion 3534 disposed on the bracket body 3532 and protruding outward from the bracket body 3532.

The bracket body 3532 is formed in a circular shape, and the diameter of the bracket body 3532 is defined as G3. The diameter G3 of the bracket body 3532 is smaller than the diameter G2 of the air guide inlet 3513 and larger than the diameter G4 of the guide housing inlet 3521.

The rear end 3513 of the air guide passes through the guide housing inlet 3521 and is located on the rear wall 3522, and the bracket body 3532 adheres the rear end 3513 of the air guide to the rear wall 3522.

In this embodiment, a bracket insertion portion 3528 is formed on the rear wall 3522 of the upper guide housing 3520.

Since the bracket insertion portion 3528 is disposed separately, the guide housing inlet 3521 is defined as the inside of the inner edge of the bracket insertion portion 3528.

The bracket insertion portion 3528 includes a first insertion wall 3528a protruding forward from the rear wall 3522, and a second insertion wall 3528b protruding from the first insertion wall 3528a toward the central axis C1 of the fan housing assembly 3400.

Through the first insertion wall 3528a and the second insertion wall 3528b, the bracket insertion portion 3528 forms a forwardly concave end.

The bracket body 3532 includes a first bracket body portion 3535 disposed to face the second insertion wall 3528b, and a second bracket body portion 3536 protruding forward from an inner edge of the first bracket body portion 3535. The first bracket body portion 3535 and the second bracket body portion 3536 are bent.

The rear end 3513 of the air guide is disposed between the first bracket body 3535 and the second insertion wall 3528b, and the first bracket body 3535 adheres the rear end 3513 to the second insertion wall 3528b.

The second bracket body portion 3536 is disposed further inward than the inner edge of the first insertion wall 3528a. An air guide 3510 is positioned between the second bracket body 3536 and the first insertion wall 3528a.

Fastening members (screws in this embodiment) are fastened to the rear wall 3522 through the bracket fastening portion 3534 .

A first bracket installation part 3522a where the bracket fastening part 3534 is located is disposed on the rear surface of the rear wall 3522. The first bracket installation part 3522a is formed concavely, the bracket fastening part 3534 is partially inserted, and the operator can align the assembly position of the bracket fastening part 3534 through the first bracket installation part 3522a.

A plurality of the bracket fastening parts 3534 are disposed, and four are disposed in this embodiment. The bracket fastening parts 3534 protrude outward in the radial direction with respect to the central axis C1 of the fan housing assembly 3400, and are arranged at equal intervals with respect to the central axis C1.

Since the first air guide bracket 3530 is fixed to the rear surface of the rear wall 3522, it is possible to prevent the rear end 3513 of the air guide 3510 from being separated when the fan housing assembly 3400 moves forward and backward.

In addition, since the first air guide bracket 3530 is assembled on the rear surface of the rear wall 3522, the air guide 3510 can be easily replaced.

In addition, since the first air guide bracket 3530 presses the entire rear end 3513 of the air guide 3510 to bring it into close contact with the rear wall 3522, the entire rear end 3513 of the air guide 3510 is uniformly supported and can be prevented from being torn at a specific location. In particular, since the fastening member fixing the first air guide bracket 3530 does not penetrate the air guide 3510, damage to the air guide 3510 can be prevented.

In this embodiment, the second air guide bracket 3540 uses a snap ring.

A second bracket installation portion 3415 is formed on the rear surface of the rear fan housing 3410 to install the second air guide bracket 3540 in the form of a snap ring.

The second bracket installation part 3415 is formed in a ring shape when viewed from the rear, and is disposed outside the fan inlet 3411. The second bracket installation portion 3415 is a rib extending rearward and outward from the rear surface of the rear fan housing 3410, and a groove 3416 inserted into the second air guide bracket 3540 is formed on the outside. The groove 3416 is opened radially outward with respect to the central axis C1 of the fan housing assembly 3400 and is concave toward the central axis C1.

A guide wall 3417 is formed on the rear surface of the rear fan housing 3410 to accommodate the air guide 3510 in the correct position. The guide wall 3417 is opposed to the second insertion wall 3528b and is positioned forward of the second insertion wall 3528b.

When viewed from the rear of the rear fan housing 3410, the guide wall 3417 is formed in a donut shape.

<Configuration of the actuator>

The actuator 3470 provides a driving force for moving the fan housing assembly 3400 in the forward and backward directions. According to a control signal from the controller, the actuator 3470 may move the fan housing assembly 3400 forward and backward.

When the indoor unit operates, the actuator 3470 moves the fan housing assembly 3400 forward, and when the indoor unit stops, the actuator 3470 moves the fan housing assembly 3400 backward.

The actuator 3470 suffices if it is configured to move the fan housing assembly 3400 forward and backward. For example, the actuator 3470 may be a hydraulic cylinder or a linear motor capable of moving the fan housing assembly 3400 forward and backward.

In this embodiment, the actuator 3470 transmits the driving force of the motor to the fan housing assembly 3400 to move the fan housing assembly 3400 forward or backward.

In this embodiment, since the first guide roller 3553 and the second guide roller 3554 disposed in the fan housing assembly 3400 support the load of the fan housing assembly 3400, the actuator 3470 can minimize the operating load caused by moving the fan housing assembly 3400 forward or backward.

In this embodiment, the central axis C1 of the fan housing assembly and the center of the front discharge port 201 are aligned. The actuator 3470 moves the fan housing assembly 3400 forward or backward along the central axis C1.

The guide housing (upper guide housing or lower guide housing in this embodiment) guides the forward and backward movement of the fan housing assembly 3400.

The actuator 3470 includes a guide motor 3472 disposed in the fan housing assembly 3400 and providing a driving force to move the fan housing assembly 3400 forward and backward, a guide shaft 3474 disposed in the fan housing assembly 3400 and rotated by receiving rotational force of the guide motor 3472, and the guide shaft 3474 A first guide gear 3476 coupled to the left side of and rotated together with the guide shaft 3474, a second guide gear 3477 coupled to the right side of the guide shaft 3474 and rotated together with the guide shaft 3474, a first rack 3478 disposed in the lower guide housing 3460 and meshed with the first guide gear 3476, A second rack 3479 disposed in the lower guide housing 3460 and meshed with the second guide gear 3477 is included.

In this embodiment, the guide motor 3472, the first guide gear 3476, the second guide gear 3477, and the guide shaft 3474 are installed in the front fan housing 3430 and move together when the fan housing assembly 3400 moves forward or backward.

The first rack 3478 meshed with the first guide gear 3476 and the second rack 3479 meshed with the second guide gear 3477 are disposed in the lower guide housing 3460.

Unlike the present embodiment, the guide motor 3472, the first guide gear 3476, the second guide gear 3477, and the guide shaft 3474 are disposed in the lower guide housing 3460, and the first rack 3478 and the second rack 3479 may be disposed in the front fan housing 3430.

The fan housing assembly 3400 moves forward or backward by mutual engagement of the racks 3478 and 3479 and the guide gears 3476 and 3477.

In this embodiment, one guide motor 3472 is used, and a guide shaft 3474 is disposed to uniformly move the front fan housing 3430. A first guide gear 3476 and a second guide gear 3477 are disposed at both ends of the guide shaft 3474, respectively. The guide shaft 3474 is disposed in the left and right directions.

In this embodiment, the first guide gear 3476 is disposed on the left side of the guide shaft 3474, and the second guide gear 3477 is disposed on the right side of the guide shaft 3474.

Racks 3478 and 3479 engaged with the guide gears 3476 and 3477 are respectively disposed on the left and right sides of the lower guide housing 3460.

In this embodiment, the first guide gear 3476 and the second guide gear 3477 are disposed above the first rack 3478 and the second rack 3479. The first guide gear 3476 and the second guide gear 3477 are moved forward and backward along the first rack 3478 and the second rack 3479.

The first rack 3478 and the second rack 3479 are formed on the upper side of the housing base 3462 of the lower guide housing 3460, and protrude upward from the housing base 3462.

The first rack 3478 and the second rack 3479 are disposed below the guide gears 3476 and 3477, and mutually interfere with the guide gears 3476 and 3477 through engagement.

The first guide gear 3476 rolls in the forward and backward directions along the first rack 3478, and the second guide gear 3477 also rolls in the forward and backward directions along the second rack 3479.

The guide motor 3472 may be disposed on the lower left or lower right side of the front fan housing 3430. A motor shaft of the guide motor 3472 may be directly coupled to the first guide gear 3476 or the second guide gear 3477.

Therefore, when the guide motor 3472 is rotated, the first guide gear 3476 and the second guide gear 3477 are simultaneously rotated by the rotational force of the guide motor 3472, and the left and right sides of the fan housing assembly 3400 can move forward or backward through the same force.

The guide motor 3472 moves together with the fan housing assembly 3400, and a motor guide groove 3469 for moving the guide motor 3472 is formed in the lower guide housing 3460. The motor guide groove 3469 is formed in the forward and backward direction, which is the moving direction of the guide motor 3472.

The motor guide groove 3469 is formed in the housing base 3462 of the lower guide housing 3460 and is concave downward in the housing base 3462.

The motor guide groove 3469 is disposed outside the first rack 3478 or the second rack 3479. The motor guide groove 3469 is concave downward than the first rack 3478 or the second rack 3479.

A space for installing and moving the guide motor 3472 can be secured through the motor guide groove 3469, and the overall height of the remote fan assembly 400 can be minimized. In particular, by forming the motor guide groove 3469 concave downward, the guide motor 3472 can be directly coupled to the first guide gear 3476 or the second guide gear 3477, and parts for power transmission can be minimized.

To smoothly implement the sliding movement of the fan housing assembly 3400, a first guide rail 3480 and a second guide rail 3490 are further disposed between the fan housing assembly 3400 (front fan housing 3430 in this embodiment) and the lower guide housing 3460.

The first guide rail 3480 couples the left side of the lower guide housing 3460 and the left side of the fan housing assembly. The first guide rail 3480 supports the load of the fan housing assembly and guides the movement direction of the fan housing assembly.

In this embodiment, the first guide rail 3480 is coupled to the left side wall 3463 and the front fan housing 3430 of the lower guide housing 3460, respectively, and causes sliding.

The second guide rail 3490 couples the right side of the lower guide housing 3460 and the right side of the fan housing assembly. The second guide rail 3490 supports the load of the fan housing assembly and guides the movement direction of the fan housing assembly.

In this embodiment, the second guide rail 3490 is coupled to the light side wall 3464 and the front fan housing 3430 of the lower guide housing 3460, respectively, and generates sliding.

The first guide rail 3480 and the second guide rail 3490 are disposed symmetrically left and right with respect to the central axis C1 of the fan housing assembly.

Since the first guide rail 3480 and the second guide rail 3490 support part of the load of the fan housing assembly, forward and backward movement of the fan housing assembly can be smoothly realized.

The first guide rail 3480 and the second guide rail 3490 are disposed above the first rack 3478 and the second rack 3479 . The first guide rail 3480 and the second guide rail 3490 support the left and right sides of the fan housing assembly 3400 and guide the movement directions of the left and right sides of the fan housing assembly 3400 .

Since the first guide rail 3480 and the second guide rail 3490 are disposed symmetrically left and right with respect to the central axis C1, the left and right sides of the fan housing assembly can be moved at the same speed and distance.

When the moving speed and distance of the left or right side of the fan housing assembly are non-uniform, the remote assembly 400 may move while waddling. In addition, if the moving speed and distance of the left or right side of the fan housing assembly are non-uniform, the steering grill 3450 may not be accurately inserted into the front discharge port 201.

The first guide rail 3480 and the second guide rail 3490 minimize friction when the front fan housing 3430 moves through rolling friction.

Since the configurations of the first guide rail 3480 and the second guide rail 3490 are the same and symmetrical, the configuration will be described using the first guide rail 3480 as an example.

The guide rail 3480 is formed to extend in the front-rear direction and is formed to be extended in the long rail housing 3482 installed in the guide housing (lower guide housing in this embodiment), extended in the front-back direction and formed to have a shorter length than the long rail housing 3482, and the short rail housing 3484 installed in the fan housing assembly (front fan housing in this embodiment), and the long rail lower It is disposed between the housing 3482 and the short rail housing 3484, and is assembled to be movable relative to the long rail housing 3482 and the short rail housing 3484, respectively, and through the rolling friction of the bearing 3485 when the short rail housing 3484 moves, It includes a bearing housing 3486 to reduce friction.

The bearing housing 3486 may be assembled to the long rail housing 3482 and move along the longitudinal direction of the long rail housing 3482 . The short rail housing 3484 may be assembled to the bearing housing 3486 and move along the length direction of the bearing housing 3486 .

That is, the short rail housing 3484 is assembled to be relatively movable with the bearing housing 3486, and the bearing housing 3486 is assembled to be relatively movable with the long rail housing 3482.

The bearing housing 3486 is shorter than the long rail housing 3482 and longer than the short rail housing 3484. The bearing housing 3486 and the short rail housing 3484 can slide only within the length of the long rail housing 3482.

The length of the long rail housing 3482 corresponds to the length F2 of the lower guide housing 3460 in the front-rear direction. In this embodiment, rail installation parts 3463a and 3464a to which the long rail housing 3482 is fixed are disposed on the inner surfaces of the left side wall 3463 and the right side wall 3464. In this embodiment, the rail installation parts 3463a and 3464a are disposed above the cable penetration part 3465.

39 is a perspective view of the steering grill shown in FIG. 33; 40 is a front view in which the steering grill is separated from the fan housing assembly of FIG. 31; 41 is a perspective view of the steering base shown in FIG. 33; Fig. 42 is a rear view of Fig. 41; 43 is an exploded perspective view of the joint assembly shown in FIG. 33; 44 is an exploded perspective view of the rear side of the steering grill and steering assembly shown in FIG. 33; 45 is a rear side perspective view of the hub shown in FIG. 44; 46 is an exploded perspective view of the steering assembly shown in FIG. 33; 47 is an exploded perspective view of the steering assembly seen from the rear side of FIG. 46; 48 is a perspective view showing an assembled state of the steering body and steering motor shown in FIG. 46; Fig. 49 is a front view of Fig. 48; 50 is a cross-sectional view showing a coupling structure of a steering assembly according to an embodiment of the present invention. FIG. 51 is an exemplary operation view of the steering assembly shown in FIG. 50 .

<Configuration of the steering grill>

The steering grill 3450 is located in front of the front fan housing 3430. A rear end of the steering grill 3450 is partially inserted inside the front fan housing 3430. The steering grill 3450 may be tilted up, down, left, right or diagonally in a state of being inserted into the front fan housing 3430.

The rear end of the steering grill 3450 is inserted into the space S2 of the front fan housing 3430 through the first fan opening surface 3431 of the front fan housing 3430. The rear end of the steering grill 3450 is located in front of the inner fan housing 3434.

The steering grill 3450 is formed in a shape corresponding to the first fan opening surface 3431 of the front fan housing 3430. When viewed from the front, the first fan opening surface 3431 is formed in a circular shape, and the steering grill 3450 is formed in a circular shape with a smaller diameter than the first fan opening surface 3431 .

The steering grill 3450 includes a steering housing 3452 having front and rear openings and having a space S4 formed therein, a steering cover 3454 disposed inside the steering housing 3452 and facing the front, and a plurality of steering housing 3452 and steering cover 3454 disposed in the space S4 of the steering housing 3452 and connecting the steering housing 3452 and the steering cover 3454. vane 3456.

The front shape of the steering housing 3452 corresponds to the shape of the first fan opening surface 3431 of the outer fan housing 3432. When viewed from the front, the steering housing 3452 is formed in a circular shape.

The outer surface 3451 of the steering housing 3452 is formed as a curved surface in the front-rear direction. When the steering grill 3450 is tilted, the outer surface 3451 of the steering housing 3452 formed in a curved surface can form a constant distance from the front fan housing 3430 (outer fan housing 3432 in this embodiment).

An outer surface 3451 of the steering housing 3452 may correspond to a rotation radius of the steering grill 3450 . The center of curvature of the outer surface 3451 of the steering housing 3452 may be disposed on the central axis C1. That is, the outer surface 3451 may have an arc shape centered on the central axis C1.

The steering grill 3450 is tilted while being inserted into the front fan housing 3430. Through the outer surface 3451 of the steering housing 3452 formed in an arc shape, the distance P between the outer surface 3451 of the steering housing 3452 and the inner surface of the outer fan housing 3432 can be uniformly formed during tilting.

When tilting, since the distance P between the outer surface 3451 of the steering housing 3452 and the inner surface of the outer fan housing 3432 is minimized, leakage of discharged air out of the steering grill 3450 can be minimized.

When the air discharged at the interval P is cooled air, condensation may occur by cooling the edge of the front discharge port 201 . When the distance P is minimized, dew formation generated at the edge of the front discharge port 201 can be minimized.

In this embodiment, the axial center of the steering housing 3452 is disposed at the axial center C1 of the fan housing assembly 3400 and coincides with the motor shaft of the fan motor 3440.

The steering cover 3454 is disposed in the space S4 and is vertically disposed. The area and shape of the steering cover 3454 corresponds to the area and shape of the steering base 1070.

Discharged air flows between the outside of the steering cover 3454 and the inside of the steering housing 3452. Since the steering cover 3454 is disposed in front of the steering base 1070, air does not flow directly to the steering cover 3454.

In the front-back direction, the steering cover 3454 is disposed between the front end 3452a and the rear end 3452b of the steering housing 3452.

The steering cover 3454 is connected to the steering assembly 1000 and receives the operating force of the steering assembly 1000 .

The vane 3456 includes a circular vane 3457 and a blade vane 3458.

The circular vanes 3457 are composed of a plurality, each circular vane 3457 has a different diameter, and the center of each circular vane 3457 is disposed on the central axis C1. That is, each circular vane 3457 forms a concentric circle centered on the central axis C1.

A plurality of blade vanes 3458 are disposed, and the plurality of blade vanes 3458 are radially disposed with respect to the central axis C1. The circular vane 3457 and the blade vane 3458 intersect.

The inner end of the blade vane 3458 is coupled to the steering cover 3454, and the outer end is coupled to the steering housing 3452.

In this embodiment, the steering housing 3452, steering cover 3454, circular vane 3457, and blade vane 3458 are integrally manufactured through injection molding.

The steering grill 3450 may be tilted up, down, left, right, or any diagonal direction with respect to the axis center C1. The steering grill 3450 may protrude forward from the front discharge port 201 and be positioned.

When the fan housing assembly 3400 moves forward, the front end 3452a of the steering housing 3452 is positioned forward of the front discharge port 201, and the rear end 3452b of the steering housing 3452 is positioned behind the front discharge port 201.

Even when the steering grill 3450 is tilted, the front end 3452a of the steering housing 3452 is located in front of the front discharge port 201, and the rear end 3452b of the steering housing 3452 is located behind the front discharge port 201.

<Configuration of tilting assembly>

The steering assembly 1000 is disposed between the steering grill 3450 and the front fan housing 3430. The steering assembly 1000 is disposed at a position where interference with discharged air is minimized.

The steering assembly 1000 is positioned in front of the inner fan housing 3434 to minimize interference with discharged air. In particular, the steering assembly 1000 is located in front of the fan motor 3440.

In this embodiment, a steering base 1070 covering the space S3 of the inner fan housing 3434 is disposed, and the steering assembly 1000 is installed on the steering base 1070. Unlike the present embodiment, the steering assembly 1000 may be installed on a structure on the side of the front fan housing 3430. For example, the steering assembly 1000 may be installed on the inner fan housing 3434 or the motor mount 3442 to steer the steering grill 3450.

The steering assembly 1000 provides a structure in which there is no restriction on the direction or order of tilting the steering grill 3450 . For example, the steering assembly 1000 provides a structure capable of tilting the steering grill 3450 in a left-right direction or a diagonal direction after tilting the steering grill 3450 in a vertical direction.

The steering assembly 1000 can immediately tilt the steering grill 3450 from an arbitrary first direction to an arbitrary second direction, and since there is no restriction on the tilting direction, steering of the steering grill 3450 can be implemented immediately.

In this embodiment, the first direction is set as a horizontal direction, and the second direction is set as a vertical direction. Unlike this embodiment, the first direction and the second direction can be arbitrarily changed. In this embodiment, the first direction and the second direction form an angle of 90 degrees.

The steering assembly 1000 includes a steering base 1070 disposed in the front fan housing 3430 and disposed behind the steering grill 3450, a joint assembly 1100 coupled to the steering base 1070 and the steering grill 3450, and tiltably assembled with the steering base 1070 and the steering grill 3450, respectively, and the steering base 1070 A first steering assembly 1001 disposed on the steering grill 3450 and assembled to be relatively rotatable, pushing or pulling the steering grill 3450 through the operation of a first steering actuator (steering motor 1030 in this embodiment), and tilting the steering grill 3450 around the joint assembly 1100, and the steering base 1070, A second steering assembly 1002 is assembled to be capable of relative rotation with the steering grill 3450, pushes or pulls the steering grill 3450 through operation of a second steering actuator (steering motor 1030 in this embodiment), and tilts the steering grill 3450 around the joint assembly 1100.

The first steering assembly 1001 and the second steering assembly 1002 are disposed on the rear side of the steering grill 3450.

The first steering assembly 1001 is assembled to the rear surface of the steering grill 3450 and moves the assembled part of the steering grill 3450 in the forward and backward directions. The second steering assembly 1002 is also assembled on the rear surface of the steering grill 3450 and moves the assembled part of the steering grill 3450 forward and backward.

In this embodiment, the first steering assembly 1001 and the second steering assembly 1002 are disposed in the front-rear direction.

When viewed from the front or rear, the portion where the first steering assembly 1001 pushes or pulls the steering grill 3450 and the portion where the second steering assembly 1002 pushes or pulls the steering grill 3450 form an angle of 90 degrees with respect to the central axis C1.

In this embodiment, the portion where the first steering assembly 1001 pushes or pulls the steering grill 3450 is located above the central axis C1 in the vertical direction. A part where the second steering assembly 1002 pushes or pulls the steering grill 3450 may be disposed on the left or right side of the central axis C1.

The joint assembly 1100 provides a tilting center of the steering grill 3450. The tilting center of the joint assembly 1100 is disposed on a central axis C1 passing through the center of the front discharge port 201 in the front-rear direction.

The joint assembly 1100 is coupled to the rear surface of the steering grill 3450. The joint assembly 1100 provides a rotation center through which the steering grill 3450 can be steered in an arbitrary direction. The joint assembly 1100 provides a center of rotation so that the steering grill 3450 faces upward, downward, left, right, upper left, lower left, upper right, and lower right with respect to the front.

The joint assembly 1100 may use a ball joint. In the case of a ball joint, since there is no structure capable of supporting the load of the steering grill 3450, deflection may occur.

The joint assembly 1100 provides a structure capable of supporting the load of the steering grill 3450 in a steered state.

In this embodiment, the joint assembly 1100 includes a first joint bracket 1110 assembled to the steering base 1070 and providing a rotation axis in a first direction (left and right direction in this embodiment), a second joint bracket 1120 assembled to the steering grill 3450 and providing a rotation axis in a second direction (up and down direction in this embodiment), and the first joint bracket ( 1110) and a cross axle 1130 rotatably assembled to the second joint bracket 1120, respectively, and providing rotational axes in the first and second directions.

Since the first joint bracket 1110 and the second joint bracket 1120 have the same configuration, they may be installed in opposite positions. When the installation positions are reversed, the first joint bracket 1110 provides a rotation axis in the second direction, and the second joint bracket 1120 provides a rotation axis in the first direction.

The first joint bracket 1110 includes a first bracket body 1112 assembled to the steering base 1070, a 1-1 shaft support part 1113 disposed on the first bracket body 1112 and protruding toward the second joint bracket 1120, and disposed on the first bracket body 1112, and the second joint bracket 1120 ), and includes a 1-2 shaft support part 1114 disposed opposite to the 1-1 shaft support part 1123.

The first bracket body 1112 is formed to elongate, and in this embodiment, the first bracket body 1112 is disposed in the left and right directions. Fastening grooves 1115 and 1116 are formed on one side and the other side of the first bracket body 1112, respectively. Each of the fastening grooves 1115 and 1116 is concavely formed in the first bracket body 1112 and is disposed toward the steering base 1070.

In this embodiment, the 1-1 shaft support part 1113 is disposed on the upper side, and the 1-2 shaft support unit 1114 is disposed on the lower side. The 1-1 shaft support part 1113 and the 1-2 shaft support part 1114 are vertically arranged.

The second joint bracket 1120 includes a second bracket body 1122 assembled to the steering grill 3450, a 2-1 shaft support part 1123 disposed on the second bracket body 1122 and protruding toward the first joint bracket 1110, and disposed on the second bracket body 1122, the first joint bracket 111 0) and includes a 2-2 shaft support part 1124 disposed opposite to the 2-1 shaft support part 1123.

The second bracket body 1122 is formed to elongate, and in this embodiment, the second bracket body 1122 is disposed in a vertical direction. Fastening grooves 1125 and 1126 are formed on one side and the other side of the second bracket body 1122, respectively. Each of the fastening grooves 1125 and 1126 is concavely formed in the second bracket body 1122 and is disposed toward the steering grill 3450.

Shaft holes 1123a (not shown) are formed in the 2-1 shaft support part 1123 and the 2-2 shaft support part 1124, respectively, and each shaft hole 1123a (not shown) is disposed to face each other. Each of the shaft holes 1123a (not shown) is disposed in a horizontal direction.

In this embodiment, the 2-1 shaft support part 1123 is disposed on the right side, and the 2-2 shaft support unit 1124 is disposed on the left side. The 2-1 shaft support part 1123 and the 2-2 shaft support part 1124 are arranged left and right.

The cross axle 1130 provides a vertical rotation axis and a left and right rotation axis. The cross axle 1130 is preferably disposed on the axis center (C1) line.

The cross axle 1130 includes a crossbody 1135 formed in a “+” shape, a 1-1 rotational shaft 1131 disposed in the second direction (vertical direction in this embodiment) and rotatably assembled with the 1-1 shaft support part 1113 on the crossbody 1135, and disposed in the second direction (vertical direction in this embodiment) in the crossbody 1135, , the 1-2nd rotational shaft 1131 rotatably assembled with the 1-2nd shaft support 1114 and disposed on the opposite side of the 1-1st rotational shaft 1131, the 2-1st rotational shaft 1133 disposed in the crossbody 1135 in the first direction (left-right direction in this embodiment) and rotatably assembled with the 2-1st shaft supporter 1123, and the cross It is disposed in the body 1135 in the first direction (left-right direction in this embodiment), is rotatably assembled with the 2-2 shaft support part 1124, and the 2-1 rotation shaft 1133. It includes a 2-2 rotation shaft 1134 disposed on the opposite side.

Each of the rotating shafts 1131, 1132, 1133, and 1134 may be inserted into and rotated in each of the shaft support parts 1113, 1114, 1123, and 1124. In this case, due to the length of the cross axle 1130, each shaft support 1113, 1114, 1123, 1124 must be separately manufactured and then assembled to each bracket body 1112, 1122.

In this embodiment, for convenience of assembly and disassembly, the first joint bracket 1110 and the second joint bracket 1120 are integrally manufactured through injection molding.

In addition, threads are formed on each of the rotation shafts 1131, 1132, 1133, and 1134 of the cross axle 1130, and each shaft cap 1141, 1142, 1143, and 1144 is provided.

Each of the shaft caps 1141, 1142, 1143, and 1144 has the same configuration, and for convenience of explanation, the shaft cap assembled to the 1-1 rotation shaft 1131 is defined as the 1-1 shaft cap 1141, the shaft cap assembled to the 1-2 rotation shaft 1132 is defined as the 1-2 shaft cap 1142, and the 2-1 rotation shaft ( 1133) is defined as the 2-1 shaft cap 1143, and the shaft cap assembled to the 2-2 rotation shaft 1134 is defined as the 2-2 shaft cap 1144.

The shaft cap is formed in a cylindrical shape, and includes a shaft cap body 1145 that is inserted into the shaft hole and rotated, a shaft cap support portion 1146 protruding outward in a radial direction from the shaft cap body 1145 and supported by the shaft support unit, and a female screw thread 1147 formed inside the shaft cap body 1145.

The 1-1 shaft cap 1141 is inserted into the 1-1 shaft support part 1113 and assembled with the 1-1 rotation shaft 1131. The 1-2 shaft cap 1142 is inserted into the 1-2 shaft support part 1114 and assembled with the 1-2 rotation shaft 1132. The assembly direction of the 1-1 shaft cap 1141 and the assembly direction of the 1-2 shaft cap 1142 are opposite.

In this embodiment, the 1-1 shaft cap 1141 and the 1-2 shaft cap 1142 are arranged in a vertical direction and can be rotated in a horizontal direction.

The 2-1 shaft cap 1143 is inserted into the 2-1 shaft support part 1123 and assembled with the 2-1 rotation shaft 1133. The 2-2 shaft cap 1144 is inserted into the 2-2 shaft support 1124 and assembled with the 2-2 rotation shaft 1134. The assembly direction of the 2-1 shaft cap 1143 and the assembly direction of the 2-2 shaft cap 1144 are opposite.

In this embodiment, the 2-1 shaft cap 1143 and the 2-2 shaft cap 1144 are arranged in a horizontal direction and can be rotated vertically.

Fastening bosses 1125a and 1126a to which the second joint bracket 1120 is fixed are formed on the rear surface of the steering grill 3450 . The fastening grooves 1125 and 1126 of the second joint bracket 1120 are inserted into the fastening bosses 1125a and 1126a of the steering grill 3450, and the second joint bracket 1120 is fixed to the steering grill 34350 through a fastening member (not shown).

The steering base 1070 covers the space S3 of the inner fan housing 3434.

The steering base 1070 is formed to pass through the base body 1075 coupled to the inner fan housing 3434, the fastening bosses 1073 and 1074 formed on the front surface of the base body 1075 and to which the first joint bracket 1110 is assembled, and the base body 1075 in the front-back direction, through which the first steering assembly 1001 passes through. a first through-hole 1071 disposed so as to pass through the base body 1075 in the front-rear direction and through which the second steering assembly 1002 passes through; It is formed on the rear surface of 5) and includes a second base installation part 1077 on which the second steering assembly 1002 is installed.

The first steering assembly 1001 may be installed in front of the steering base 1070. In this embodiment, in order to prevent an increase in the length of the fan housing assembly 3400 in the front-back direction due to the installation of the first steering assembly 1001, the first steering assembly 1001 is positioned in the space S3. The first steering assembly 1001 is located in the space S3, is assembled to the rear surface of the steering base 1070, and is assembled to the steering grill 3450 through the first through hole 1071.

For the same reason, the second steering assembly 1002 is located in the space S3, is assembled to the rear surface of the steering base 1070, and passes through the first through hole 1071 to be assembled to the steering grill 3450.

The first steering assembly 1001 pushes or pulls the steering grill 3450 , and the steering grill 3450 is tilted up and down with respect to the joint assembly 1100 .

The second steering assembly 1002 pushes or pulls the steering grill 3450, and the steering grill 3450 tilts in a horizontal direction with respect to the joint assembly 1100.

The steering grill 3450 may be tilted in a diagonal direction with respect to the joint assembly 1100 by combining the operating directions of the first steering assembly 1001 and the second steering assembly 1002 .

The first base installation part 1076 is for fixing the first steering assembly 1001, and is formed in a boss shape in this embodiment. The second base installation part 1077 is for fixing the second steering assembly 1002, and is formed in a boss shape in this embodiment.

The first base installation part 1076 protrudes rearward from the rear surface of the steering base 1070 and is inserted into the steering body 1010 to be described later. A fastening member (not shown) is fastened through the steering body 1010 and the first base installation part 1076.

When the steering body 1010 is fastened, in order to temporarily fix the fastening position of the steering body 1010, two first base installation parts 1076 are disposed. One is referred to as the 1-1st base installation unit 1076a, and the other is referred to as the 1-2nd base installation unit 1076b.

The structure of the second base installation part 1077 is the same as that of the first base installation part 1076.

The second base installation part 1077 is also disposed in two places. One is called the 2-1st base installation part 1077a, and the other one is called the 2-2nd base installation part 1077b.

<Configuration of steering assembly>

Components of the first steering assembly 1001 and the second steering assembly 1002 are the same, and only the assembly position with respect to the steering grill 3450 is different. In this embodiment, the configuration of the first steering assembly 1001 will be described as an example. When it is necessary to distinguish the components of the first steering assembly 1001 and the second steering assembly 1002, they will be classified as “first” or “second”.

The first steering assembly 1001 includes a steering body 1010 fixed to the front fan housing 3430 side or the steering grill 3450 side, a steering actuator (steering motor 1030 in this embodiment) assembled to the steering body 1010, and a movable rack movably assembled to the steering body 1010 and moved by operation of the steering actuator ( 1020), a rack guide 1012 disposed on the steering body 1010, movably assembled with the movable rack 1020, and guiding the moving direction of the movable rack 1020, coupled to the motor shaft 1031 of the steering motor 1030, meshed with the movable rack 1020, and driving force to the movable rack 1020 by the operation of the steering motor 1030. A steering gear 1040 that provides, and an adjust assembly 3600 that is assembled to be relatively rotatable with the movable rack 1020 and rotatable with the steering grill 3450, and to adjust the distance and angle between the steering grill 3450 and the movable rack 1020 when the movable rack 1020 is moved.

The steering body 1010 may be fixed to the front fan housing 3430 or the steering grill 3450. In this embodiment, considering power supply and cable connection of the steering actuator, the steering body 1010 is installed on the front fan housing 3430 side structure.

When the steering body 1010 is installed in the steering grill 3450 that is steered according to a control signal, there is a problem in that the cables are steered together. In addition, when the steering body 1010 is assembled to the steering grill 3450, the load on the side of the steering grill 3450 increases, and there is a problem in that a steering actuator for steering the steering body 1010 also needs to be increased.

In this embodiment, the steering actuator is installed on the steering base 1070 fixed to the front fan housing 3430. In particular, in order to minimize the separation distance between the steering grill 3450 and the steering base 1070, the steering body 1010 is disposed on the rear surface of the steering base 1070, and the adjustment assembly 3600 is disposed to pass through the steering base 1070.

Since each of the adjustment assemblies 3600 is disposed to pass through each of the through holes 1071 and 1072 of the steering base 1070, the distance between the steering base 1070 and the steering grill 3450 can be minimized. In addition, when the distance between the steering base 1070 and the steering grill 3450 is minimized, the length of the adjustment assembly 3600 can be minimized, and the relative displacement and relative angle generated by the adjustment assembly 3600 can be more precisely controlled.

The steering actuator is a component for moving the movable rack 1020 in the forward and backward directions. A hydraulic cylinder may be used as the steering actuator. In this embodiment, a stepper motor is used as the steering actuator, which is defined as the steering motor 1030.

The steering motor 1030 is assembled to the steering body 1010, and the movable rack 1020 is disposed between the steering motor 1030 and the steering body 1010.

The rack guide 1012 guides the moving direction of the movable rack 102, and in this embodiment, the rack guide 1012 is disposed in the forward and backward directions. In this embodiment, the rack guide 1012 is integrally formed with the steering body 1010. The rack guide 1012 may be formed in a groove or slit shape. In this embodiment, the rack guide 1012 is formed in the form of a slit passing through the steering body 1010, and the movable rack 1020 is inserted into the slit.

The steering motor 1030 is assembled to the steering body 1010. The steering motor 1030 moves the movable rack 1020 forward and backward while being fixed to the steering body 1010 .

A motor fixing part 1013 for fixing the steering motor 1030 to the steering body 1010 is disposed. In this embodiment, the steering motor 1030 is fixed to the steering body 1010 through a fastening means (not shown).

The motor fixing part 1013 protrudes from the steering body 1010 toward the steering motor 1030. The motor fixing part 1013 is disposed in two places. The movable rack 1020 is disposed between the motor fixing parts 1013.

The motor fixing part 1013 protrudes from the steering body 1010 to secure an installation space for the movable rack 1020. The rack guide 1012 is disposed between the motor fixing parts 1013. The motor fixing part 1013 disposed on one side is referred to as a first motor fixing part, and the motor fixing part 1013 disposed on the other side is referred to as a second motor fixing part. The distance M1 between the first motor fixing part and the second motor fixing part is greater than the height M2 of the movable rack 1020 .

A coupling part 1016 for coupling with the steering base 1070 is disposed on the steering body 1010 . The coupling part 1016 is formed in the front-back direction. Since the first base installation part 1076 and the second base installation part 1077 are formed in a boss shape, the coupling part 1016 is formed in a corresponding groove shape.

Two coupling parts 1016 are disposed corresponding to the number of first base installation parts 1076.

The coupling portion 1016 disposed on the steering body 1010 of the first steering assembly 1001 is defined as a 1-1 coupling portion 1016a and a 1-2 coupling portion 1016b. The coupling portion (not shown) disposed on the steering body 1010 of the second steering assembly 1002 is defined as a 2-1 coupling portion (not shown) and a 2-2 coupling portion (not shown).

The coupling part 1016 is disposed in front of the motor fixing part 1013 or the rack guide 1012. The rack guide 1012 is disposed between the 1-1 coupling part 1016a and the 1-2 coupling part 1016b.

The steering gear 1040 is a pinion gear. The steering gear 1040 is coupled to the motor shaft 1031.

The movable rack 1020 is moved forward and backward by the operation of the steering motor 1030. The movable rack 1020 is movably assembled with the steering body 1010 and moves forward or backward along the rack guide 1012 .

The movement distance of the movable rack 1020 is adjusted according to the number of revolutions of the steering gear 1040, and the movement direction is determined according to the rotation direction of the steering gear 1040.

The movable rack 1020 includes a movable rack body 1021, a movable rack gear 1023 disposed on the movable rack body 1021 and disposed in the longitudinal direction of the movable rack body 1021, a guide block 1022 disposed on the movable rack body 1021 and assembled to be movable relative to the rack guide 1012, and disposed on the movable rack body 1021 and a movable rack coupling part 1024 coupled to the rear side structure of the adjust assembly 3600.

The guide block 1022, the movable rack gear 1023, and the adjust movable rack coupling part 1024 are integrally formed on the movable rack body 1021.

The movable rack gear 1023 is formed in the longitudinal direction of the movable rack body 1021. Considering the engagement with the steering gear 1040, the movable rack gear 1023 is preferably disposed on the upper or lower surface of the movable rack body 1021, and in this embodiment, it is disposed on the lower surface of the movable rack body 1021.

The guide block 1022 is inserted into the rack guide 1012 and moved. Here, the guide block 1022 and the rack guide 1012 are not jammed in the movement direction, but are jammed in directions other than the movement direction.

The guide block 1022 and the rack guide 1012 are formed to coincide with cross sections orthogonal to the moving direction, and the guide block 1022 is inserted into the rack guide 1012.

The guide block 1022 has a guide protrusion 1025 formed in a moving direction, and a guide groove 1015 corresponding to the guide protrusion 1025 is formed in the rack guide 1012 . The guide groove 1015 and the guide protrusion 1025 cause jamming in left and right directions and up and down directions except for the moving direction (front and rear directions in this embodiment).

Unlike the present embodiment, the guide groove 1015 may be disposed on the guide block 1022, and the guide protrusion 1025 may be disposed on the rack guide 1012.

<Configuration of adjustment assembly>

The adjustment assembly 3600 is disposed in the first steering assembly 1001 and the second steering assembly 1002, respectively. The configuration of each of the adjustment assemblies 3600 is the same.

When it is necessary to distinguish the adjustment assembly 3600 disposed in the first steering assembly 1001 and the adjustment assembly 3600 disposed in the second steering assembly 1002, the first adjustment assembly 3601 and the second adjustment assembly 3602 will be distinguished. Components constituting the adjust assembly 3600 will also be classified in the same way.

The adjustment assembly 3600 corrects the distance and direction between the steering body 1010 and the steering grill 3450 when the movable rack 1020 moves forward or backward.

The adjustment assembly 3600 is a component for connecting the steering grill 3450 and the movable rack 1020.

When the steering grill 3450 is steered, the relative distance between the steering grill 3450 and the movable rack 1020 is varied, and the adjustment assembly 3600 eliminates the variable distance difference. The adjustment assembly 3600 supports the steered steering grill 3450 and maintains the steered state.

The adjustment assembly 3600 corrects the relative displacement and relative angle of the steering grill 3450 and the movable rack 1020, and maintains the steering grill 3450 in a steered state.

In this embodiment, the adjust assembly 3600 corrects the relative displacement and relative angle through a multi-joint structure.

In this embodiment, the steering assembly 1000 is assembled on the rear surface of the steering grill 3450 and further includes a hub 1080 assembled with the adjustment assembly 3600. The first steering assembly 1001 and the second steering assembly 1002 are coupled to the hub 1080 .

The hub 1080 includes a hub body 1082 assembled to the steering grill 3450, a hub fitting part 1084 disposed on the hub body 1082 and fitted to the steering grill 3450, a hub fastening part 1086 disposed on the hub body 1082 and fastened to the steering grill 3450, and the hub body 1082 ), and includes a first adjust coupler 1088 and a second adjust coupler 1089 coupled to the adjust assembly 3600.

In this embodiment, both the first adjust assembly 3601 and the second adjust assembly 3602 are assembled to the hub body 1082 . The hub 1080 may be removed and the first adjustment assembly 3601 and the second adjustment assembly 3602 may be directly assembled to the steering grill 3450 . In this case, there is a problem in that the assembly process according to the first adjustment assembly 3601 and the second adjustment assembly 3602 becomes complicated.

In this embodiment, the first adjustment assembly 3601 and the second adjustment assembly 3602 are assembled to the hub 1080, and the hub 1080 is assembled to the steering grill 3450. In this case, regardless of the steering grill 3450, the first adjust assembly 3601, the second adjust assembly 3602, and the hub 1080 may be prepared in an assembled state.

Since the hub 1080 to which the first adjustment assembly 3601 and the second adjustment assembly 3602 are assembled is assembled to the steering grill 3450, assembly can be simplified. In particular, with this structure, when replacement of the steering grill 3450 is required, the adjustment assembly 3600 does not need to be disassembled, and the adjustment assembly 3600 can be reused in an assembled state.

The adjusting assembly 3600 is disposed between a first ball hinge 3610 coupled to the moving rack coupling part 1024 of the moving rack 1020, a second ball hinge 3620 coupled to the adjusting coupling parts 1088 and 1089 of the hub 1080, and the first ball hinge 3610 and the second ball hinge 3620. is disposed between the first ball hinge 3610 and the relatively rotatable first ball cap 3630, and is disposed between the first ball cap 3630 and the second ball hinge 3620, and surrounds a part of the outer surface of the second ball hinge 3620 and is relatively rotatable with the second ball hinge 3620. It is disposed between the second ball cap 3640, the first ball cap 3630, and the second ball cap 3640, provides elastic force to the first ball cap 3630 and the second ball cap 3640, brings the first ball cap 3630 into close contact with the first ball hinge 3610, and attaches the second ball cap 3640 to the second ball hinge. The elastic member 3650 brought into close contact with the 3620, the first ball hinge 3610, the first ball cap 3630, the elastic member 3650, the second ball cap 3640, and the second ball hinge 3620 are accommodated therein, the adjust couplers 1088 and 1089 are inserted toward the front side, and the mobile rack coupler 1024 and an adjust housing 3660 inserted rearward.

Since each component of the adjustment assembly 3600 is relatively rotated or moved relative to each other, friction may be generated, and operating noise may be generated due to the friction. Therefore, a lubricant such as grease is preferably applied to each component of the adjustment assembly 3600.

As the elastic member 3650, a coil spring is used. Different types of elastic members may be used in this embodiment. The coil spring is disposed between the first ball cap 3630 and the second ball cap 3640, and can provide elastic force while being inserted into the first ball cap 3630 and the second ball cap 3640. The coil spring is effective in maintaining a proper position between the first ball cap 3630 and the second ball cap 3640.

In particular, when the elastic force of the coil spring is strong, excessive friction may occur between the ball caps 3630 and 3640 and the ball hinges 3610 and 3620, and wear and operating noise may be generated due to the friction. A lubricant may be applied between the ball caps 3630 and 3640 and the ball hinges 3610 and 3620.

The first ball hinge 3610 and the second ball hinge 3620 perform a joint role. Relative rotation may occur in the first ball hinge 3610 or the second ball hinge 3620.

The first ball hinge 3610 has a spherical overall shape. The first ball hinge 3610 is coupled to the movable rack coupling part 1024 of the movable rack 1020 .

The first ball hinge 3610 is fixed to the moving force coupling part 1024 by a fastening member 3612 . The fastening member 3612 penetrates the first ball hinge 3610 in the front-back direction.

The first ball hinge 3610 has a first groove 3611 and a second groove 3613 in which the fastening member 3612 is installed, and the first groove 3611 and the second groove 3613 are concave in the front-back direction.

The first groove 3611 and the second groove 3613 have the same structure. In this embodiment, the fastening member 3612 is inserted through the first groove 3611. The head 3612a of the fastening member 3612 is inserted into the first groove 3611, and the head 3612a of the fastening member 3612 is prevented from protruding out of the outer surface of the first ball hinge 3610.

A fastening hole (not shown) connected to the first groove 3611 and penetrating the first ball hinge 3610 is formed, and the fastening hole is formed in the front and rear directions. The second groove 3613 is concave from the rear to the front, and the movable rack coupling part 1024 is inserted therein.

The fastening member 3612 passes through the first ball hinge 3610 and is fastened to the movable rack coupling part 1024 .

The second ball hinge 3620 has the same structure as the first ball hinge 3610.

The second ball hinge 3620 has a first groove 3621 and a second groove 3623 in which the fastening member 3622 is installed, and the first groove 3621 and the second groove 3623 are concave in the front-back direction.

The first groove 3621 and the second groove 3623 have the same structure. In this embodiment, the fastening member 3622 is inserted through the first groove 3621. The head 3622a of the fastening member 3622 is inserted into the first groove 3621, and the head 3622a of the fastening member 3612 is prevented from protruding out of the outer surface of the second ball hinge 3620.

A fastening hole (not shown) connected to the first groove 3621 and penetrating the second ball hinge 3620 is formed, and the fastening hole is formed in the front-rear direction. The second groove 3623 is concavely formed from the rear to the front, and the first adjust coupling portion 1088 or the second adjust coupling portion 1089 is inserted thereinto. The fastening member 3622 passes through the second ball hinge 3620 and is fastened to the adjust coupler 1088 or the second adjust coupler 1089.

The first ball cap 3630 covers the first groove 3611 of the first ball hinge 3610 and surrounds the outer surface of the first ball hinge 3610 . The first ball cap 3630 covers the outer surface of the first ball hinge 3610 in the front direction.

The first ball cap 3630 includes a concave first ball cap groove 3631 corresponding to the outer surface of the first ball hinge 3610 and a first ball cap protrusion 3633 inserted into the elastic member 3650.

The first ball hinge 3610 is inserted into the first ball cap groove 3631, and the first ball cap groove 3631 minimizes friction with the first ball hinge 3610. The first ball hinge 3610 can be rotated while being in close contact with the first ball cap groove 3631.

The first ball cap protrusion 3633 protrudes toward the elastic member 3650. In this embodiment, the first ball cap protrusion 3633 is disposed in the front-back direction and protrudes toward the front side (steering grill side).

The second ball cap 3640 has the same configuration as the first ball cap 3630, and the direction is opposite.

The second ball cap 3640 covers the first groove 3621 of the second ball hinge 3620 and surrounds the outer surface of the second ball hinge 3620. The second ball cap 3640 covers the outer surface of the second ball hinge 3620 in the rear direction.

The second ball cap 3640 includes a concave second ball cap groove 3641 corresponding to the outer surface of the second ball hinge 3620 and a second ball cap protrusion 3643 inserted into the elastic member 3650.

The second ball hinge 3620 is inserted into the second ball cap groove 3641, and the second ball cap groove 3641 minimizes friction with the second ball hinge 3620. The second ball hinge 3620 can be rotated while being in close contact with the second ball cap groove 3641.

The second ball cap protrusion 3643 protrudes toward the elastic member 3650. In this embodiment, the second cap protrusion 3643 is disposed in the front-back direction and protrudes toward the rear side (moving rack side).

The first ball cap projection 3633 and the second ball cap projection 3643 are arranged in a line, protrude toward each other, and are arranged in the front-back direction in this embodiment.

The first ball cap groove 3631 and the second ball cap groove 3641 are disposed in opposite directions. For example, when the first ball cap groove 3631 is disposed toward the rear side, the second ball cap groove 3641 is disposed toward the front side.

The adjust housing 3660 accommodates the first ball hinge 3610, the first ball cap 3630, the elastic member 3650, the second ball cap 3640, and the second ball hinge 3620.

A first insertion hole 3673 through which the movable rack coupling part 1024 passes is formed on the rear side of the adjust housing 3660, and the movable rack coupling part 1024 is inserted into the inside of the rear side of the adjust housing 3660 through the first insertion hole 3673.

A second insertion port 3683 through which the first adjust coupling portion 1088 or the second adjust coupling portion 1089 passes is disposed on the front side of the adjust housing 3660, and the first adjust coupling portion 1088 or the second adjust coupling portion 1089 passes through the second insertion hole 3683 into the inside of the front side of the adjust housing 3660. is inserted into

In this embodiment, the adjust housing 3660 is composed of a first adjust housing 3670 and a second adjust housing 3680.

By assembling the first adjust housing 3670 and the second adjust housing 3680, the first ball hinge 3610, the first ball cap 3630, the elastic member 3650, the second ball cap 3640, and the second ball hinge 3620 can be easily accommodated inside.

The first adjust housing 3670 includes a first adjust housing body 3672 having a space AS1 formed therein, the first adjustment housing body 3673 formed on the rear side of the first adjust housing body 3672 (movable rack coupling part 1024 side in this embodiment) and communicating with the space AS1, and the first adjust housing body 3672. It is formed on the front side (steering grill side in this embodiment) and includes a first opening 3671 communicating with the space AS1.

The second adjust housing 3680 includes a second adjust housing body 3682 having a space AS2 formed therein, a second insertion hole 3683 formed on a front side (steering grill side in this embodiment) of the second adjust housing body 3682 and communicating with the space AS2, and a rear side of the second adjust housing body 3682 (in this embodiment, a steering grill side). It is formed on the movable rack coupling part 1024) and includes a second opening surface 3681 communicating with the space AS2.

In this embodiment, the first adjust housing 3670 and the second adjust housing 3680 are screwed together, and for this purpose, a female thread 3685 is formed on one side and a male thread 3675 is formed on the other side.

In this embodiment, a female thread 3685 is formed on the inner surface of the second adjusting housing body 3682, and a male thread 3675 is formed on the outer surface of the first adjusting housing body 3672.

A first ball hinge 3610 and a second ball hinge 3620 are disposed inside the adjust housing 3660, and the first ball hinge 3610 and the second ball hinge 3620 may be rotated, respectively.

The first ball hinge 3610 can be rotated with respect to the steering grill 3450, and the second ball hinge 3620 can be rotated with respect to the steering base 1070.

The movable rack coupling part 1024 to which the first ball hinge 3610 is coupled can be rotated within a predetermined range within the first insertion hole 3673. The adjust coupling parts 1088 and 1089 to which the second ball hinge 3620 is coupled can be rotated within the second insertion hole 3683 within a predetermined range.

Since the first ball hinge 3610 and the second ball hinge 3620 can be rotated independently of each other, they can correspond to the tilting of the steering grill 3450.

The remote fan assembly 400 provides a projection state more forward than the front surface 200a of the door assembly 200 through the front discharge port 201 . In the projection state, the direction of the steering grill 3450 is steered.

When in the projection state, the front end 3452a of the steering grill 3450 protrudes more than the front end 200a of the door assembly 200, and the front end 3452a of the steering grill 3450 and the front end 200a of the door assembly 200 form a protrusion length P. That is, the protruding length P may be half of the thickness of the steering grill 3450 in the front-back direction.

In the projection state, half of the outer surface 3451 of the steering grill 3450 is located outside the front discharge port 201 and the other half is located inside the front discharge port 201 .

In particular, in the projection state, the outermost 3451a of the outer surfaces 3451 of the steering grill 3450 is preferably disposed on the same line as the front discharge port 201 or the front surface 200a of the door assembly 200.

In the projection state, the joint assembly 1100 is preferably disposed at the front discharge port 201 . More precisely, when in a projection state, the cross axle 1030 faces the front and is preferably disposed on the same line as the front surface 200a of the door assembly 200.

When viewed from the front, the first steering assembly 1001 is disposed on the upper side of the central axis C1, and the second steering assembly 1002 is disposed on the left side of the central axis C1.

When viewed from the front, the first steering assembly 1001 and the second steering assembly 1002 are disposed at an angle of 90 degrees with respect to the central axis C1.

This arrangement is to minimize the operation of the first steering assembly 1001 or the second steering assembly 1002 when steering the steering grill 3450.

The middle of the maximum forward and maximum reverse states of the moving rack 1020 of the steering assembly is defined as an initial position. Each movable rack 1020 of the first steering assembly 1001 or the second steering assembly 1002 is positioned at an initial position when in a projection state.

In this embodiment, the steering angle of the steering grill 3450 is formed from 0 to 15 degrees.

A state in which the front side of the steering grill 3450 (the steering cover 3454 in this embodiment) is orthogonal to the central axis C1 or parallel to the front side 200a of the door assembly 200 is defined as a steering angle of 0.

When the movable rack 1020 is in a state of maximum movement toward the front side or the rear side, a steering angle of 15 degrees is formed.

Taking the first steering assembly 1001 as an example, when the movable rack 1020 of the first steering assembly 1001 is moved to the rear side at the maximum, the upper end of the steering grill 3450 is steered to the rear side, and the steering grill 3450 is directed upward. At this time, the steering cover 3454 of the steering grill 3450 forms an angle of 15 degrees with respect to the central axis C1. A steering angle of the steering grill 3450 may be controlled according to a moving distance of the movable rack 1020 .

The relationship between the steering direction of the steering grill 3450, the movable rack 1020 of the first steering assembly 1001, and the movable rack 1020 of the second steering assembly 1002 is as follows.

Moving rack of the first steering assembly Moving rack of the 2nd steering assembly turn left initial position junior turn right initial position Advance lift junior initial position downward Advance initial position up left junior junior down left Advance junior upward junior Advance down right Advance Advance

When the steering grill 3450 is steered to the left with respect to the central axis C1, only the second steering assembly 1002 is operated in this embodiment. The movable rack 1020 of the first steering assembly 1001 is positioned at an initial position, and the movable rack 1020 of the second steering assembly 1002 moves backward. In this case, the steering grill 3450 is rotated to the left around the joint assembly 1100.

When the steering grill 3450 is steered to the right with respect to the central axis C1, only the second steering assembly 1002 is operated in this embodiment.

The movable rack 1020 of the first steering assembly 1001 is positioned at an initial position, and the movable rack 1020 of the second steering assembly 1002 moves forward. In this case, the steering grill 3450 is rotated to the right around the joint assembly 1100.

When the steering grill 3450 is steered upward with respect to the central axis C1, only the first steering assembly 1001 is operated in this embodiment.

In the projection state, the movable rack 1020 of the first steering assembly 1001 is moved backward, and the movable rack 1020 of the second steering assembly 1002 is positioned at an initial position. In this case, the steering grill 3450 is rotated upward around the joint assembly 1100.

When the steering grill 3450 is steered downward with respect to the central axis C1, only the first steering assembly 1001 is operated in this embodiment.

In the projection state, the movable rack 1020 of the first steering assembly 1001 is moved forward, and the movable rack 1020 of the second steering assembly 1002 is positioned at an initial position. In this case, the steering grill 3450 is rotated downward around the joint assembly 1100.

That is, when steering the steering grill 3450 upward, downward, left or right with respect to the central axis C1, in this embodiment, only one of the first steering assembly 1001 or the second steering assembly 1002 is operated.

Next, when steering the steering grill 3450 in a diagonal direction with respect to the central axis C1, both the first steering assembly 1001 and the second steering assembly 1002 are operated.

For example, when the steering grill 3450 is steered in the lower left diagonal direction with respect to the central axis C1, in the projection state, the movable rack 1020 of the first steering assembly 1001 moves forward, and the movable rack 1020 of the second steering assembly 1002 moves backward. In this case, the steering grill 3450 is rotated left and lower around the joint assembly 1100.

When the steering grill 3450 is steered in the upper right diagonal direction with respect to the central axis C1, the movable rack 1020 of the first steering assembly 1001 moves backward and the movable rack 1020 of the second steering assembly 1002 moves forward.

Although not shown, when the steering grill 3450 is steered in an upper left diagonal direction with respect to the central axis C1, the movable rack 1020 of the first steering assembly 1001 moves backward, and the movable rack 1020 of the second steering assembly 1002 moves backward.

Although not shown, when the steering grill 3450 is steered in the lower right diagonal direction with respect to the central axis C1, the movable rack 1020 of the first steering assembly 1001 moves forward, and the movable rack 1020 of the second steering assembly 1002 moves forward.

6 to 11 show the maximum movement of the movable rack 1020 of the first steering assembly 1001 or the movable rack 1020 of the second steering assembly 1002 .

The degree of steering may be adjusted by adjusting the forward or backward distance of each of the movable racks 1020.

In addition, in the steering assembly 1000 according to the present embodiment, when each steering state is switched to any other steering state, steering is performed immediately.

When the steering is changed from the left steering in FIG. 6 to the right-right diagonal direction in FIG. 11, the movable rack 1020 of the first steering assembly 1001 moves backward from the initial position, and the movable rack of the second steering assembly 1002 moves forward from the reverse position.

In this way, the steering assembly 1000 according to the present embodiment has an advantage of immediately changing the steering of the steering grill 3450 from the current steering direction to the target steering direction.

Since the steering grill 3450 can change steering immediately, direct wind can be provided to the target area even if the target area in the room is changed in real time.

For example, when the position of an occupant is detected in real time through a camera module and the direct wind tracking mode is selected, direct wind may be provided to the occupant even if the occupant moves indoors.

On the contrary, when the direct wind avoidance mode is selected, direct wind may be provided by avoiding a location where an occupant is located in an area where the temperature difference between the target temperature and the room temperature is large.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above embodiments and can be manufactured in various forms, and those skilled in the art to which the present invention belongs will understand that it can be implemented in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

100: cabinet assembly 200: door assembly
300: short-distance fan assembly 400: long-distance fan assembly
500: heat exchange assembly 600: filter assembly
1000: cabinet assembly 1100: panel module
1200: door cover assembly 1300: door slide module
1400: side moving assembly 1500: display module
1600: door cover moving module 1700: door housing moving module
1800: cable guide 1900: camera module
3400: fan housing assembly 3410: rear fan housing
3420: fan 3530: front fan housing
3440: fan motor 3450: steering grill
3460: lower guide housing 3470: actuator
3480: first guide rail 3490: second guide rail
3510: Air guide 3520: Upper guide housing
3530: first air guide bracket 3540: second air guide bracket
3600: adjust assembly 3610: first ball hinge
3620: second ball hinge 3630: first ball cap
3640: second ball cap 3650: elastic member
3660: adjust housing

Claims (9)

Front panel with a front discharge port;
a door cover closing the front discharge port;
a door cover housing located behind the door cover and disposed on the front panel; and
And a door cover moving module for moving the door cover in the front and rear directions,
The door cover housing,
a door cover housing body disposed on a rear surface of the front panel;
a door cover storage portion disposed on the door cover housing body, open toward the front, and selectively accommodating the door cover when the door cover moves backward;
An indoor unit of an air conditioner comprising: a moving module installation unit disposed on the door cover housing body, open toward the front, and in which the door cover moving module is installed.
The method of claim 1, wherein the moving module installation unit
An indoor unit of an air conditioner formed concavely rearward from the door cover housing body.
According to claim 1,
When the door cover moves backward, the front surface of the door cover is the same as or rearward of the front surface of the door cover housing.
The method of claim 1, wherein the door cover housing body
An indoor unit of an air conditioner that moves in a vertical direction along internal gaps respectively formed on the left and right sides of the front panel.
According to claim 4,
The indoor unit of the air conditioner further comprises a door housing moving module for moving the door cover housing body in a vertical direction.
The method of claim 1, wherein the door cover storage unit
An indoor unit of an air conditioner formed concavely rearward from the door cover housing.
The method of claim 6, wherein the moving module installation unit
An indoor unit of an air conditioner formed to be more concave toward the rear side than the door cover storage part.
The method of claim 1, wherein the moving module installation unit
An indoor unit of an air conditioner communicating with the door cover storage unit and positioned at a rear side of the door cover storage unit.
Front panel with a front discharge port;
a door cover inserted into the front discharge port to close the front discharge port;
a door cover housing located behind the door cover and disposed on the front panel; and
And a door cover moving module for moving the door cover in the front and rear directions,
The door cover housing moves vertically along the front panel while accommodating the door cover and the door cover moving module.