Indoor unit of air conditioner

Abstract

The present invention relates to an indoor unit of an air conditioner, including: a cabinet assembly formed with an internal space, configured with a suction port connecting the internal space and an indoor space; a door assembly configured in front of the cabinet assembly, formed with a front discharge port open in a front-rear direction; a fan housing configured in the internal space of the cabinet assembly, configured with a fan to flow air; an actuator moving the fan housing toward the front discharge port; a deflection grille assembled in the fan housing, configured on the front discharge port side in the fan housing, selectively passing through the front discharge port to guide air flowed by the fan to the outside of the front discharge port as the actuator operates; and a deflection assembly configured between the fan housing and the deflection grille, deflecting the deflection grille by pushing or pulling the deflection grille, the front end of the deflection grille providing a protruding state passing through the front discharge port when the actuator operates.

Description

[0001] This case is a divisional application of the invention patent application filed on March 7, 2019, with application number 201980017541.6 and title "Indoor Unit of Air Conditioner". Technical Field

[0002] This invention relates to an indoor unit of an air conditioner, and more specifically to an indoor unit of an air conditioner having a door assembly that allows the door cover to move vertically in order to open and close the front exhaust outlet. Background Technology

[0003] Split-type air conditioners have an indoor unit installed indoors and an outdoor unit installed outdoors. The refrigerant circulating in the indoor and outdoor units can cool, heat, or dehumidify the indoor air.

[0004] The indoor units of the split-type air conditioner can be classified according to their installation method as: upright indoor units that are installed vertically on the indoor floor, wall-mounted indoor units that are installed on the indoor wall, and ceiling-mounted indoor units that are installed on the indoor ceiling.

[0005] In existing split-type air conditioner indoor units, because the indoor fan is located inside the casing, there is a problem that the conditioned air cannot be expelled over long distances.

[0006] Korean Patent No. 10-1191413 discloses a circulator for circulating air around an indoor unit to a long distance.

[0007] However, although the air circulator described in Korean Patent 10-1191413 is installed in the indoor unit, it cannot allow the regulated air to flow directly. Instead, it provides the function of flowing indoor air above the indoor unit to a distance.

[0008] Because the air circulator cannot allow the regulated air to flow directly, it cannot concentrate the regulated air supply to the target area, and thus there is a problem that it cannot selectively regulate the air in the target area where temperature imbalance occurs.

[0009] Furthermore, in Korean Patent Publication 10-2017-0010293, an opening is formed in the casing of the indoor unit, and a door unit for opening and closing the opening is provided. The door unit in Korean Patent Publication 10-2017-0010293 adopts a structure in which it can move along the front-back direction, and closes the opening when the indoor unit is not running, and moves forward to open the opening when the indoor unit is running.

[0010] However, in Korean Patent Publication 10-2017-0010293 (hereinafter referred to as Prior Art 1), the door unit moves along the front-back direction to open and close the opening. However, since the door unit is arranged in front of the open opening, there is a problem that it hinders the flow of air expelled through the opening. That is, the door unit-based opening structure of Prior Art 1 is not suitable for the flow of air over long distances.

[0011] Furthermore, in Korean Patent 10-2017-0010293 (hereinafter referred to as Prior Art 2), only the door is opened and the air supply fan is located inside the exterior panel. Therefore, the air flowing by the air supply fan will create resistance with the structure inside the exterior panel, resulting in more flow loss when the air flows over a long distance.

[0012] Furthermore, Chinese utility model patent 203375535U (hereinafter referred to as prior art 3) discloses a structure capable of rotating an axial fan within a predetermined angle range. However, in the axial fan of prior art 3, since both sides of the axial fan are fixed to a rotating shaft, it can only rotate with respect to the rotating shafts located on both sides. Prior art 3 has the problem that it cannot rotate the axial fan in directions not provided by the rotating shaft. That is, prior art 3 has the problem that it can only rotate in the up-down direction or the left-right direction provided by the rotating shaft.

[0013] [Prior Technology Documents]

[0014] [Patent Literature]

[0015] Prior technology 1: Korean authorized invention patent 10-1191413

[0016] Prior technology 2: Korean Patent Publication No. 10-2017-0010293

[0017] Prior technology 3: Chinese authorized utility model No. 203375535U Summary of the Invention

[0018] Technical issues

[0019] The purpose of this invention is to provide an indoor unit of an air conditioner, wherein when the remote fan assembly is not operating, the door cover assembly closes the front outlet, and when the remote fan assembly is operating, the door cover assembly moves outward to open the front outlet, and the fan housing assembly can protrude outward from the door assembly through the opened front outlet.

[0020] The purpose of this invention is to provide an indoor unit of an air conditioner that, when the remote fan assembly is not running, closes the front exhaust outlet with a door cover assembly, and when the remote fan assembly is running, moves the door cover assembly downward to open the front exhaust outlet.

[0021] The purpose of this invention is to provide an indoor unit of an air conditioner in which, when the remote fan assembly is not in operation, the fan housing assembly is hidden inside the cabinet assembly, and only when the remote fan assembly is in operation, the fan housing assembly passes through the front outlet of the door assembly and protrudes outward from the door assembly.

[0022] The purpose of this invention is to provide an indoor unit of an air conditioner that, when the fan housing assembly protrudes outward from the door assembly, prevents the cold air from the housing assembly from leaking out through the front outlet.

[0023] The purpose of this invention is to provide an indoor unit of an air conditioner, wherein the door cover assembly for opening and closing the front outlet can move vertically within the door assembly.

[0024] The purpose of this invention is to provide an indoor unit of an air conditioner that, when the front exhaust outlet is closed, provides a door cover assembly with a surface continuous with the front panel.

[0025] The purpose of this invention is to provide an indoor unit of an air conditioner in which, when the front exhaust outlet is opened, the door cover of the door cover assembly is located inside the door assembly.

[0026] The purpose of this invention is to provide an indoor unit of an air conditioner that minimizes operating noise when the door cover assembly moves in the vertical direction.

[0027] The purpose of this invention is to provide an indoor unit for an air conditioner that minimizes the thickness and weight of the door assembly in the front-to-back direction.

[0028] The purpose of this invention is to provide an indoor unit of an air conditioner that can prevent collision noise with the upper or lower structure when the door cover assembly moves up and down.

[0029] The purpose of this invention is to provide an indoor unit of an air conditioner that allows the rotating grille to be rotated in one of the following directions: upward, downward, left, right, upper left, lower left, upper right, or lower right.

[0030] The purpose of this invention is to provide an indoor unit of an air conditioner that can immediately change the direction of the swivel grille from one of the following directions: up, down, left, right, upper left, lower left, upper right, or lower right.

[0031] The purpose of this invention is to provide an indoor unit of an air conditioner that minimizes the interference between the expelled direct airflow and the housing components when the direction of the deflection grille changes.

[0032] The purpose of this invention is not limited to the purposes mentioned above, and those skilled in the art will clearly understand other purposes not mentioned from the following description.

[0033] Solution to the problem

[0034] In this invention, when the remote fan assembly is not operating, the door cover assembly closes the front discharge port, and only when the remote fan assembly is operating, the door cover assembly moves outward of the front discharge port and opens the front discharge port. Therefore, only when the front discharge port is open, the fan housing assembly can be protruded outward of the door assembly using an actuator.

[0035] In order to project the fan housing assembly outward toward the door assembly, when the actuator is operated, the front end of the steering grille provides a protruding state through the front outlet, and the front end of the steering grille protrudes further forward than the front surface of the door assembly, so that the regulated air can be provided as direct wind to a distant target area through the protruding state.

[0036] When in the protruding state, the rear end of the steering grille is positioned further back than the front surface of the door assembly, which facilitates the guidance of internal air from the housing assembly toward the inside of the front exhaust port.

[0037] When in the protruding state, the front end of the fan housing is inserted into the door assembly, thereby minimizing leakage of regulated air between the outer side of the fan housing and the front outlet.

[0038] When the remote fan assembly is operating, the door cover assembly moves downward toward the front discharge port and opens the front discharge port, thus minimizing the movement distance of the door cover assembly.

[0039] When the remote fan assembly is operating, the fan housing assembly extends through the front exhaust port and protrudes outward from the door assembly, thus allowing the remote fan assembly to be concealed within the housing assembly when no direct airflow is being provided. The front exhaust port is selectively opened by the operation of the door assembly, thereby preventing regulated air from leaking through the front exhaust port.

[0040] The door cover assembly moves vertically within the door assembly, thus allowing the moving door cover assembly to be concealed inside the door assembly. The concealed door cover assembly completely eliminates interference with the exhaust air.

[0041] When the door assembly closes the front outlet, the door provides a surface continuous with the front panel, and the door housing is arranged on the rear side of the door. Therefore, it is possible to cut off the leakage of regulated air to the front outlet. This structure can prevent condensation from forming around the front outlet due to regulated cold air.

[0042] The door cover assembly moves vertically inside the door assembly, thus minimizing operating noise.

[0043] When the door cover assembly moves in the vertical direction, it moves up and down with its left and right sides supported by two gear drive motors. Therefore, the operating noise caused by the difference in the moving distance on both sides of the door cover assembly can be minimized.

[0044] By moving the door cover assembly up and down, the door cover assembly is hidden inside the door assembly, thus minimizing the front-to-back thickness of the door assembly.

[0045] The fan housing assembly extends through the front outlet of the door assembly and protrudes outward from the door assembly, thus minimizing the movement distance of the fan housing assembly.

[0046] When in the protruding state, the door cover assembly is located under the fan housing, thus minimizing the distance the door cover assembly needs to travel to return to the front discharge port.

[0047] When the front exhaust outlet is closed, the door cover assembly is located in front of the steering grille, thus minimizing the movement distance of the fan housing assembly.

[0048] The door assembly and the steering grille are arranged at predetermined intervals in the front-to-back direction, thus preventing interference with the steering grille when the door assembly moves up and down.

[0049] The actuator includes: a guide motor disposed on the fan housing; a guide shaft disposed on the fan housing in a left-right direction and rotatably assembled on the fan housing, rotating upon receiving rotational force from the guide motor; a first guide gear engaged with the left side of the guide shaft and rotating together with the guide shaft; a second guide gear engaged with the right side of the guide shaft and rotating together with the guide shaft; a first rack disposed on the guide housing and meshing with the first guide gear; and a second rack disposed on the guide housing and meshing with the second guide gear. When the guide motor operates, the first guide gear moves along the first rack in a meshing state, and the second guide gear moves along the second rack in a meshing state, thus preventing swaying along the left-right direction of the fan housing during forward or backward movement.

[0050] The first rack is arranged below the first guide gear, and the second rack is arranged below the second guide gear. Therefore, the load on the fan housing assembly can be distributed, and the operating load applied to the first guide gear and the second guide gear can be reduced.

[0051] The first and second racks are positioned lower than the front discharge port, thus avoiding interference with the flow of the discharged air and preventing them from being exposed to the outside through the front discharge port.

[0052] When viewed from the front, with reference to the central axis C1 that runs through the center of the front discharge port along the front-to-back direction, the first rack and the second rack are arranged in a left-right symmetrical manner. Therefore, it is possible to maintain left-right balance when the fan housing assembly moves forward or backward, and to prevent eccentricity to one side during movement.

[0053] When viewed from the front, with reference to the central axis C1 that runs through the center of the front discharge port along the front-to-back direction, the first guide gear and the second guide gear are arranged in a left-right symmetrical manner. Therefore, it is possible to maintain left-right balance when the fan housing assembly moves forward or backward, and to prevent eccentricity to one side during movement.

[0054] When viewed from the front, with reference to the central axis C1 that runs through the center of the front discharge port along the front-to-back direction, the first and second guide rails are arranged in a left-right symmetrical manner, thus preventing eccentricity to one side during the movement of the fan housing assembly.

[0055] The device includes: a first guide roller disposed on the left side of the fan housing and rotatably assembled thereon; a second guide roller disposed on the right side of the fan housing and rotatably assembled thereon; a first guide groove extending longitudinally along the guide housing, supporting the first guide roller and guiding its movement; and a second guide groove extending longitudinally along the guide housing, supporting the second guide roller and guiding its movement. The first guide roller moves with support in the first guide groove, and the second guide roller moves with support in the second guide groove. Therefore, the load of the fan housing assembly can be distributed to the guide housing, reducing the operating load on the actuator. In particular, by distributing the load of the fan housing assembly to the guide housing, the frictional noise of the rack and guide gear can be minimized.

[0056] The first guide roller and the second guide roller are arranged symmetrically from left to right, and the first guide roller and the second guide roller are arranged at a position lower than the central axis, so as to firmly support the moving fan housing assembly.

[0057] Invention Effects

[0058] The indoor unit of the air conditioner of the present invention has one or more of the following effects.

[0059] First, in this invention, when the remote fan assembly is not operating, the door cover assembly closes the front discharge port, and only when the remote fan assembly is operating, the door cover assembly moves outward of the front discharge port and opens the front discharge port. Therefore, only when the front discharge port is open, the fan housing assembly can be protruded outward of the door assembly by the actuator.

[0060] Secondly, in this invention, when the actuator is operated, the front end of the steering grille provides a protruding state through the front outlet. The front end of the steering grille protrudes further forward than the front surface of the door assembly. Therefore, the protruding state enables the regulated air to be provided as direct wind to a distant target area.

[0061] Third, in this invention, when in the protruding state, the rear end of the steering grille is positioned further back than the front surface of the door assembly, which facilitates guiding the internal air of the housing assembly toward the inside of the front exhaust port.

[0062] Fourth, in this invention, when in the protruding state, the front end of the fan housing is inserted into the door assembly, thereby minimizing the leakage of regulated air between the outer side of the fan housing and the front outlet.

[0063] Fifth, in this invention, when the remote fan assembly is in operation, the door cover assembly moves to the lower side of the front discharge port and opens the front discharge port, thus minimizing the moving distance of the door cover assembly.

[0064] Sixth, in this invention, the fan housing assembly protrudes through the front outlet and outwards from the door assembly only when the remote fan assembly is in operation. Therefore, the remote fan assembly can be hidden inside the housing assembly when no direct airflow is provided.

[0065] Seventh, in this invention, the front outlet is selectively opened by the operation of the door cover assembly, thus preventing the regulated air from leaking through the front outlet.

[0066] Eighth, in this invention, the door cover assembly moves vertically within the door assembly, thus enabling the moving door cover assembly to be hidden inside the door assembly.

[0067] Ninth, in this invention, the concealed door cover assembly is able to completely eliminate interference with the expelled air.

[0068] Tenth, in this invention, when the door cover assembly closes the front outlet, the door cover provides a surface continuous with the front panel, and a door cover housing is arranged on the rear side of the door cover, thus preventing leakage of regulated air through the front outlet.

[0069] Eleventh, in this invention, the front outlet is sealed by a door cover, thus preventing condensation from forming around the front outlet due to the regulated cold air.

[0070] Twelfth, in this invention, the door cover assembly moves vertically inside the door assembly, thus minimizing operating noise.

[0071] Thirteenth, in this invention, when the door cover assembly moves in the vertical direction, it moves vertically by being supported on its left and right sides by two gear drive motors. Therefore, the operating noise caused by the difference in the moving distance on both sides of the door cover assembly can be minimized.

[0072] Fourteenth, in this invention, the door cover assembly is hidden inside the door assembly by moving the door cover assembly up and down, thus minimizing the front-to-back thickness of the door assembly.

[0073] Fifteenth, in this invention, the fan housing assembly extends through the front outlet of the door assembly and protrudes outward from the door assembly, thus minimizing the movement distance of the fan housing assembly.

[0074] Sixteenth, in this invention, when in the protruding state, the door cover assembly is located on the lower side of the fan housing, thus minimizing the movement distance of the door cover assembly to return to the front discharge port.

[0075] Seventeenth, in this invention, when the front outlet is closed, the door cover assembly is located in front of the steering grille, thus minimizing the movement distance of the fan housing assembly.

[0076] Nineteenth, in this invention, the door cover assembly and the steering grille are arranged at predetermined intervals along the front-rear direction, so that interference with the steering grille can be eliminated when the door cover assembly moves up and down.

[0077] Twentieth, in this invention, the first guide gear of the actuator moves along the first rack in a state of meshing with the first rack, and the second guide gear moves along the second rack in a state of meshing with the second rack. Therefore, when the fan housing moves forward or backward, it is possible to prevent the fan housing from swaying in the left and right directions.

[0078] Twenty-first, in this invention, the first rack is arranged on the lower side of the first guide gear, and the second rack is arranged on the lower side of the second guide gear. Therefore, the load on the fan housing assembly can be distributed, and the operating load applied to the first guide gear and the second guide gear can be reduced.

[0079] Twenty-third, in this invention, the first rack and the second rack are positioned lower than the front discharge port, thus avoiding interference with the flow of the discharged air and preventing exposure to the outside through the front discharge port.

[0080] Twenty-fourth, in this invention, when viewed from the front, the first rack and the second rack are arranged in a left-right symmetrical manner with reference to the central axis C1 through which the center of the front discharge port runs along the front-back direction. Therefore, when the fan housing assembly moves forward or backward, it can maintain left-right balance and prevent eccentricity to one side during movement.

[0081] Twenty-fifth, in this invention, when viewed from the front, with reference to the central axis C1 through which the center of the front discharge port runs along the front-back direction, the first guide gear and the second guide gear are arranged in a left-right symmetrical manner. Therefore, when the fan housing assembly moves forward or backward, it can maintain left-right balance and prevent eccentricity to one side during movement.

[0082] Twenty-six, in this invention, when viewed from the front, with reference to the central axis C1 through which the center of the front discharge port runs along the front-back direction, the first guide rail and the second guide rail are arranged in a left-right symmetrical manner, so that eccentricity to one side can be prevented during the movement of the fan housing assembly.

[0083] 29. In this invention, the first guide roller of the fan housing assembly moves in a state supported by the first guide groove, and the second guide roller moves in a state supported by the second guide groove. Therefore, the load of the fan housing assembly can be distributed to the guide housing, and the operating load of the actuator can be reduced.

[0084] Thirtieth, in this invention, by distributing the load of the fan housing assembly to the guide housing, the frictional noise of the rack and guide gear can be minimized.

[0085] Thirty-first, in this invention, when the steering grille changes direction, the front end of the steering grille is maintained to be more convex than the front surface of the door assembly, thus preventing the expelled air from interfering with the door assembly.

[0086] Thirty-second, in this invention, the steering grille is arranged with its center on the central axis C1 that runs through the front exhaust port in the front-rear direction. Therefore, during steering, the leakage of air between the front exhaust port and the steering grille can be minimized.

[0087] Thirty-third, in this invention, the first steering assembly and the second steering assembly are rotatably combined with the two parts of the steering grille, and by pushing or pulling the operation of each combined part, with the central axis C1 passing through the front outlet along the front-rear direction as the reference, not only can the upper side rotate, the lower side rotate, the left side rotate, and the right side rotate, but also the upper left side rotate, the upper right side rotate, the lower left side rotate, and the lower right side rotate.

[0088] Thirty-fourth, in this invention, with the central axis C1 as a reference, the first steering assembly and the second steering assembly form a 90-degree angle, so that the operation of the first steering assembly and the second steering assembly can be minimized when steering.

[0089] Thirty-fifth, in this invention, the first steering component is disposed on the upper or lower side of the central shaft C1, and the second steering component is disposed on the left or right side of the central shaft C1. Therefore, upper rotation, lower rotation, left rotation, and right rotation can be achieved by using only one of the first steering component or the second steering component. Attached Figure Description

[0090] Figure 1 This is a perspective view of an indoor air conditioning unit according to an embodiment of the present invention.

[0091] Figure 2 yes Figure 1 A diagram showing the middle door cover retracting.

[0092] Figure 3 yes Figure 2 A schematic diagram of the lowering of the middle door cover assembly.

[0093] Figure 4 yes Figure 3 A schematic diagram of the front-facing nozzle opening.

[0094] Figure 5 yes Figure 4 A schematic diagram of the forward movement of the central fan housing assembly.

[0095] Figure 6 yes Figure 5 A schematic diagram showing the center steering grille tilted to the left.

[0096] Figure 7 yes Figure 5 A schematic diagram showing the center steering grille tilted to the right.

[0097] Figure 8 yes Figure 5 A schematic diagram showing the center steering grille tilted upwards.

[0098] Figure 9 yes Figure 5 A schematic diagram showing the center steering grille tilting downwards.

[0099] Figure 10 yes Figure 5 A schematic diagram showing the center steering grille tilting to the lower right.

[0100] Figure 11 yes Figure 5 A schematic diagram showing the center steering grille tilted to the upper left.

[0101] Figure 12 It is shown Figure 1 Right side sectional view of the door cover assembly and fan housing assembly.

[0102] Figure 13 It is shown Figure 2 Right side sectional view of the door cover assembly and fan housing assembly.

[0103] Figure 14 It is shown Figure 4 Right side sectional view of the door cover assembly and fan housing assembly.

[0104] Figure 15 It is shown Figure 5 Right side sectional view of the door cover assembly and fan housing assembly.

[0105] Figure 16 It is shown Figure 15 A schematic diagram showing the size and angle of each structural component.

[0106] Figure 17 It is shown Figure 8 Right side sectional view of the door cover assembly and fan housing assembly.

[0107] Figure 18 It is shown Figure 9 Right side sectional view of the door cover assembly and fan housing assembly.

[0108] Figure 19 It is shown Figure 1 An exploded perspective view of the door assembly.

[0109] Figure 20 It is shown Figure 1 The rear view of the door component.

[0110] Figure 21 It is shown Figure 2 Top sectional view of the door assembly.

[0111] Figure 22 It is shown Figure 19 The main view of the door cover component.

[0112] Figure 23 It is shown Figure 22 The right-side view of the door cover assembly.

[0113] Figure 24 It is shown Figure 22 Top sectional view of the door cover assembly.

[0114] Figure 25 This is an exploded perspective view of a door cover assembly according to an embodiment of the present invention.

[0115] Figure 26 yes Figure 20 The enlarged view of the upper part of the door assembly shown.

[0116] Figure 27 yes Figure 26 A schematic diagram of the lowering of the middle door cover assembly.

[0117] Figure 28 yes Figure 26 An enlarged view of the door housing moving module shown.

[0118] Figure 29 It is shown Figure 23 The diagram shows a cutaway perspective view of the combined structure of the door housing moving module.

[0119] Figure 30 It is shown Figure 21 An enlarged view of the assembly structure of the door housing moving module shown.

[0120] Figure 31 yes Figure 12 The image shows a partial cutaway perspective view of the long-range fan assembly.

[0121] Figure 32 yes Figure 31 The front view of the long-distance fan assembly is shown.

[0122] Figure 33 yes Figure 32 The right-side view.

[0123] Figure 34 yes Figure 31 An exploded 3D diagram.

[0124] Figure 35 From Figure 34 An exploded stereoscopic view viewed from the rear side.

[0125] Figure 36 yes Figure 34 The exploded perspective view of the fan housing assembly shown.

[0126] Figure 37 yes Figure 36 The diagram shows a perspective view of the front fan housing.

[0127] Figure 38 yes Figure 37 The main view.

[0128] Figure 39 yes Figure 38 Rear view.

[0129] Figure 40 yes Figure 34 The diagram shows a 3D view of the guide rail.

[0130] Figure 41 yes Figure 34 The image shows a cross-sectional view of the air guide before it is in operation.

[0131] Figure 42 yes Figure 31 The diagram shows a perspective view of the steering grille.

[0132] Figure 43 yes Figure 31 The front view of the fan housing assembly with the steering grille separated.

[0133] Figure 44 yes Figure 36 The diagram shows a perspective view of the steering base.

[0134] Figure 45 yes Figure 44 Rear view.

[0135] Figure 46 yes Figure 36 The exploded perspective view of the connector assembly is shown.

[0136] Figure 47 yes Figure 36 An exploded perspective view of the rear side of the steering grille and steering assembly shown.

[0137] Figure 48 yes Figure 47 A perspective view of the back side of the bushing shown.

[0138] Figure 49 yes Figure 36 The diagram shows an exploded perspective view of the steering assembly.

[0139] Figure 50 From Figure 49 An exploded perspective view of the steering assembly viewed from the rear.

[0140] Figure 51 It is shown Figure 49 The diagram shows the assembled state of the steering body and steering motor.

[0141] Figure 52 yes Figure 51 The main view.

[0142] Figure 53 This is a cross-sectional view showing the combined structure of a steering component according to an embodiment of the present invention.

[0143] Figure 54 yes Figure 53 The diagram shows the operation of the steering component.

[0144] Figure 55 This is an exploded perspective view of the fan housing assembly according to the second embodiment of the present invention.

[0145] Figure 56 yes Figure 55 An enlarged view of the steering assembly shown. Detailed Implementation

[0146] The advantages, features, and methods for implementing the present invention will become more apparent from the accompanying drawings and detailed embodiments described below. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms. These embodiments are provided only to more fully disclose the invention and to more completely indicate the scope of the invention to those skilled in the art. The invention is defined only by the scope of the claims. Throughout this specification, the same reference numerals denote the same structural elements.

[0147] The present invention will now be described in detail with reference to the accompanying drawings.

[0148] Figure 1 This is a perspective view of an indoor air conditioning unit according to an embodiment of the present invention. Figure 2 yes Figure 1 A diagram showing the middle door cover retracting. Figure 3 yes Figure 2 A schematic diagram of the lowering of the middle door cover assembly. Figure 4 yes Figure 3 A schematic diagram of the front-facing nozzle opening. Figure 5 yes Figure 4 A schematic diagram of the forward movement of the central fan housing assembly. Figure 6 yes Figure 5 A schematic diagram showing the center steering grille tilted to the left. Figure 7 yes Figure 5 A schematic diagram showing the center steering grille tilted to the right. Figure 8 yes Figure 5 A schematic diagram showing the center steering grille tilted upwards. Figure 9 yes Figure 5 A schematic diagram showing the center steering grille tilting downwards. Figure 10 yes Figure 5 A schematic diagram showing the center steering grille tilting to the lower right. Figure 11 yes Figure 5 A schematic diagram showing the center steering grille tilted to the upper left.

[0149] The air conditioner in this embodiment includes: an indoor unit 10; and an outdoor unit (not shown), which is connected to the indoor unit 10 via refrigerant piping and circulates refrigerant.

[0150] The outdoor unit includes: a compressor (not shown) for compressing refrigerant; an outdoor heat exchanger (not shown) for supplying refrigerant from the compressor and condensing it; an outdoor fan (not shown) for supplying air to the outdoor heat exchanger; and a storage tank (not shown) for supplying only gaseous refrigerant to the compressor after the refrigerant discharged from the indoor unit 10 has been supplied.

[0151] The outdoor unit may also include a four-way valve (not shown) for operating the indoor unit in either cooling or heating mode. In cooling mode, refrigerant evaporates in the indoor unit 10 to cool the indoor air. In heating mode, refrigerant condenses in the indoor unit 10 to heat the indoor air.

[0152] <<<Structural Components of the Indoor Unit>>>

[0153] The indoor unit includes: a housing assembly 100 with an open front surface, an intake 101 formed on the rear surface, and an internal space S; a door assembly 200 assembled in the housing assembly 100, having a front exhaust 201 covering the front surface of the housing assembly 100 and opening and closing the front surface of the housing assembly 100; fan assemblies 300 and 400 disposed inside the housing assembly 100 to exhaust air from the internal space S into the room; a heat exchange assembly 500 disposed between the fan assemblies 300 and 400 and the housing assembly 100 to exchange heat between the intake indoor air and the refrigerant; and a filter assembly 600 disposed on the back of the housing assembly 100 to filter the air flowing toward the intake 101.

[0154] The indoor unit includes: an intake 101 disposed on the back of the housing assembly 100; a side exhaust 301 disposed on the side of the housing assembly 100; and a front exhaust 201 disposed on the front of the housing assembly 100.

[0155] Air drawn in through the intake port 101 is expelled into the room through the front exhaust port 201 or the side exhaust port 301.

[0156] The inlet 101 is located on the back of the housing assembly 100.

[0157] The side outlets 301 are respectively located on the left and right sides of the housing assembly 100.

[0158] The front outlet 201 is disposed on the door assembly 200. The front outlet 201 penetrates the door assembly 200.

[0159] When viewed from the front, the front exhaust outlet 201 is positioned on the upper side of the door assembly 100. This is to allow air exhausted from the front exhaust outlet 201 to flow further into the room. The front exhaust outlet 201 is preferably located above the center of the door assembly 200.

[0160] In this embodiment, the fan assemblies 300 and 400 consist of a near-field fan assembly 300 and a far-field fan assembly 400. Unlike this embodiment, the near-field fan assembly 300 can be omitted, and only the far-field fan assembly 400 can be arranged. If the near-field fan assembly 300 is omitted, the side exhaust port 301 can also be removed, and regulated air is only discharged to the front exhaust port 201.

[0161] The near-field fan assembly 300 and the far-field fan assembly 400 are located in front of the heat exchange assembly 500. Furthermore, the near-field fan assembly 300 and the far-field fan assembly 400 are located in front of the filter assembly 600. In this embodiment, the heat exchange assembly 500 is arranged in front of the filter assembly 600, and the fan assemblies 300 and 400 are arranged in front of the heat exchange assembly 500.

[0162] Therefore, the air drawn into the near-field fan assembly 300 and the far-field fan assembly 400 will pass through the heat exchange assembly 500, thereby causing the regulated air to flow into the near-field fan assembly 300 and the far-field fan assembly 400.

[0163] The heat exchange component 500 is disposed inside the housing component 100, located in front of the intake port 101, and covers the entire intake port 101.

[0164] The intake port 101 is formed on the back of the housing assembly 100 and is arranged vertically. The heat exchange assembly 500 covers the entire intake port 101 so that air drawn into the intake port 101 passes through the heat exchange assembly 500.

[0165] The heat exchange assembly 500 is positioned opposite the back of the inlet 101 and the housing assembly 100, and is arranged vertically.

[0166] By configuring the heat exchange assembly 500 vertically, the installation space of the heat exchange assembly 500 can be minimized, and the near-field fan assembly 300 and the far-field fan assembly 400 can be closely attached to the front surface of the heat exchange assembly 500.

[0167] By attaching the near-field fan assembly 300 and the far-field fan assembly 400 close to the front surface of the heat exchange assembly 500, it also helps to minimize the internal space of the enclosure assembly 100.

[0168] In particular, by arranging the filter assembly 600, heat exchange assembly 500, and fan assemblies 300 and 400 all vertically and stacking them sequentially from back to front, the thickness of the indoor unit in the front-to-back direction can be minimized.

[0169] When the heat exchange assembly 500 is arranged at an angle along the front-to-back direction, it occupies more installation space when installed inside the housing assembly 100 compared to the case where it is arranged vertically, thus increasing the front-to-back thickness of the indoor unit.

[0170] The near-field fan assembly 300 and the far-field fan assembly 400 are manufactured with a length corresponding to the height of the heat exchange assembly 500.

[0171] The near-field fan assembly 300 and the far-field fan assembly 400 can be stacked vertically. In this embodiment, the far-field fan assembly 400 is arranged above the near-field fan assembly 300. Because the far-field fan assembly 400 is positioned higher than the near-field fan assembly 300, the exhaust air from the far-field fan assembly 400 flows towards the distance within the room.

[0172] The proximity fan assembly 300 discharges air laterally to the housing assembly 100. The proximity fan assembly 300 can provide indirect airflow to the user. The proximity fan assembly 300 discharges air simultaneously to the left and right sides of the housing assembly 100.

[0173] The long-range fan assembly 400 is located above the short-range fan assembly 300 and is disposed inside the upper side of the housing assembly 100.

[0174] The long-range fan assembly 400 discharges air to the exhaust port 201 located on the front of the housing assembly 100. The long-range fan assembly 300 provides direct airflow to the user.

[0175] The long-range fan assembly 400 discharges air to a distance. When the long-range fan assembly 400 only serves to supply air to the room at a distance, it can be positioned on the upper side of the indoor unit.

[0176] The long-range fan assembly 400 of this embodiment can provide direct airflow to a target area indoors. The target area can be an area where the target temperature deviates significantly from the indoor temperature. The target area can be an area where a user or pet is active.

[0177] In order to supply direct wind to the target area, the long-range fan assembly 400 is equipped with a steering grill 3450 that can adjust the direction.

[0178] In this embodiment, the long-distance fan assembly 400 protrudes outward from the housing assembly 100 only when it is in operation, and is hidden inside the housing assembly 100 when it is not in operation.

[0179] When the remote fan assembly 400 is in operation, the remote fan assembly 400 passes through the front outlet 201 of the door assembly 200 and protrudes further forward than the door assembly 200.

[0180] When the remote fan assembly 400 protrudes outward from the front exhaust port 201, interference between the direct airflow and the door assembly 200 can be minimized. When the remote fan assembly 400 exhausts air from inside the housing assembly 100, air resistance will be generated as it passes through the front exhaust port 201.

[0181] In this embodiment, when direct airflow is provided to the room via the remote fan assembly 400, the steering grille 3450 extends through the front outlet 201 and protrudes further forward than the housing assembly 100 in the structural elements of the remote fan assembly 400.

[0182] In the structural elements of the long-distance fan assembly 400, since only a portion (in this embodiment, the steering grille) penetrates the door assembly 200, the travel distance of the long-distance fan assembly 400 can be minimized, and the desired effect can be achieved.

[0183] In particular, the long-range fan assembly 400 can adjust the angle of the steering grille 3450 protruding outward from the front exhaust port 201. The direction in which the steering grille 3450 faces is not limited to a specific angle or direction.

[0184] With the front-facing outlet 201 protruding outwards, the steering grille 3450 can be configured with the front of the housing assembly 100 facing upwards, downwards, left, right, or any diagonal direction.

[0185] Furthermore, in this embodiment, the long-distance fan assembly 400 can enable the steering grille 3450 to immediately change direction from a first specific direction to any second specific direction.

[0186] The long-range fan assembly 400 can be arranged with the front exhaust 201 protruding further forward than the door assembly 200. In particular, the steering grille 3450 protrudes further forward than the front surface 200a of the door assembly 200.

[0187] The state in which the steering grille 3450 protrudes further forward than the door assembly 200 is defined as the projection state.

[0188] When the steering grille 3450 is in the protruding state, the entire steering grille 3450 can protrude outwards from the front surface of the door assembly 200. In this embodiment, only the front portion of the steering grille 3450 protrudes further forward than the front surface 200a of the door assembly 200.

[0189] The steering grille 3450 can be tilted in any direction when protruding. When viewed from the front of the housing assembly 100, the steering grille 3450 can be tilted upward, downward, leftward, rightward, or diagonally.

[0190] In its protruding state, the steering grille 3450 can be tilted in any direction, enabling direct airflow to the target area inside the room.

[0191] <<Structural Components of the Close-Range Fan Assembly>>

[0192] The proximity fan assembly 300 is a structural element for discharging air into the side outlet 301 of the housing assembly 100. The proximity fan assembly 300 discharging air into the side outlet 301 provides indirect airflow to the user.

[0193] The proximity fan assembly 300 is positioned in front of the heat exchange assembly 500. In the proximity fan assembly 300, a plurality of fans 310 are stacked along the vertical direction. In this embodiment, three fans 310 are provided and stacked along the vertical direction.

[0194] In this embodiment, the fan 310 is a diagonal-flow centrifugal fan. The fan 310 draws in air along the axial direction and discharges air along the circumferential direction.

[0195] After the fan 310 draws in air from the rear, it discharges air in a circumferential direction, and the air discharged in the circumferential direction flows forward.

[0196] The proximity fan assembly 300 includes: a fan casing 320 with openings at the front and rear, and attached to the housing assembly 100; and a plurality of fans 310 attached to the fan casing 320 and disposed inside the fan casing 320.

[0197] The fan housing 320 is configured as a box with an open front and back. The fan housing 320 is attached to the housing assembly 100.

[0198] The front of the fan housing 320 is arranged facing the door assembly 200. The back of the fan housing 320 is arranged facing the heat exchange assembly 500.

[0199] The front of the fan housing 320 is sealed against the door assembly 200.

[0200] In this embodiment, a portion of the side of the fan housing 320 is exposed to the outside. A side exhaust port 301 is formed on the exposed portion of the fan housing 320. A deflector grille capable of controlling the direction of airflow is arranged on the side exhaust port 302. The side exhaust ports 301 are respectively disposed on the left and right sides of the fan housing 320.

[0201] The fan 310 is disposed inside the fan housing 320. A plurality of the fans 310 are disposed on the same plane and stacked in a row in the vertical direction.

[0202] Since the fan 310 uses a diagonal-flow centrifugal fan, after air is drawn in to the rear surface of the fan housing 320, it will be discharged along the circumferential direction of the front side.

[0203] Figure 12 It is shown Figure 1 Right side sectional view of the door cover assembly and fan housing assembly. Figure 13 It is shown Figure 2 Right side sectional view of the door cover assembly and fan housing assembly. Figure 14 It is shown Figure 4 Right side sectional view of the door cover assembly and fan housing assembly. Figure 15 It is shown Figure 5 Right side sectional view of the door cover assembly and fan housing assembly. Figure 16 It is shown Figure 15 A schematic diagram showing the size and angle of each structural component. Figure 17 It is shown Figure 8 Right side view of the door cover assembly and fan housing assembly. Figure 18 It is shown Figure 9 Right side view of the door cover assembly and fan housing assembly. Figure 19 It is shown Figure 1 An exploded perspective view of the door assembly. Figure 20 It is shown Figure 1 The rear view of the door component. Figure 21 It is shown Figure 2 Top sectional view of the door assembly. Figure 22 It is shown Figure 19 The main view of the door cover component. Figure 23 It is shown Figure 22 The right-side view of the door cover assembly. Figure 24 It is shown Figure 22 Top sectional view of the door cover assembly. Figure 25 This is an exploded perspective view of a door cover assembly according to an embodiment of the present invention. Figure 26 yes Figure 20 The enlarged view of the upper part of the door assembly shown. Figure 27 yes Figure 26 A schematic diagram of the lowering of the middle door cover assembly. Figure 28 yes Figure 26 An enlarged view of the door housing moving module shown. Figure 29 It is shown Figure 23 The diagram shows a cutaway perspective view of the combined structure of the door housing moving module. Figure 30 It is shown Figure 21 An enlarged view of the assembly structure of the door housing moving module shown.

[0204] <<<Structural Elements of Gate Components>>>

[0205] The door assembly 200 includes: a front panel 210 having a front outlet 201; a panel module 1100 attached to the back of the front panel 210, having a panel outlet 1101 communicating with the front outlet 201; a door cover assembly 1200 disposed on the panel module 1100 for opening and closing the panel outlet 1101 and the front outlet 201; a door sliding module 1300 disposed on the panel module 1100 for moving the panel module 1100 relative to the housing assembly 100 in a left-right direction; a camera module 1900 disposed on the upper side of the panel module 1100 for capturing images of the interior; and a cable guide 1800, the upper end of which is rotatably assembled with the door cover assembly 1200 and the lower end of which is rotatably assembled with the panel module 1100 for storing cables connected to the door cover assembly 1200.

[0206] The front discharge port 201 is disposed on the front panel 210 and opens along the front-back direction. The panel discharge port 1101 is disposed on the panel module 1100 and opens along the front-back direction.

[0207] The front outlet 201 and the panel outlet 1101 have the same area and shape. The front outlet 201 is located further forward than the panel outlet 1101.

[0208] In addition, the door assembly 200 also includes a display module 1500 disposed on the panel module 1100, which provides information about the indoor unit to the front panel 210 in a visual manner.

[0209] The display module 1500 is disposed on the back of the front panel 1100 and can provide visual information to the user through the front panel 1100.

[0210] In contrast, the display module 1500 can extend through the front panel 1100 and expose a portion of it, providing visual information to the user through the exposed display.

[0211] In this embodiment, information from the display module 1500 is transmitted to the user through the display opening 202 formed on the front panel 210.

[0212] <<Structural Components of the Front Panel>>

[0213] The front panel 210 is disposed on the front surface of the indoor unit. The front panel 210 includes: a front panel body 212; a front outlet 201 that opens along the front-rear direction of the front panel body 212; a display opening 202 that opens along the front-rear 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 a second front panel side 216 disposed on the right side of the front panel body 212 and covering the right side of the panel module 1100.

[0214] The front panel 210 is formed with a vertical length that is longer than its horizontal width. In this embodiment, the vertical length is more than three times the horizontal width of the front panel 210. Furthermore, the front-to-back thickness of the front panel 210 is thinner than its horizontal width. In this embodiment, the front-to-back thickness is less than one-quarter of the horizontal width of the front panel 210.

[0215] In this embodiment, the display opening 202 is located below the front ejector 201. In contrast, the display opening 202 may be located above the front ejector 201.

[0216] The front ejector port 201 and the display opening 202 are arranged vertically. A virtual center line C connecting the center of the front ejector port 201 and the center of the display opening 202 is vertically aligned. Based on the center line C, the front panel 210 is symmetrical from left to right.

[0217] Camera 1950 of the camera module 1900 is arranged on the center line C.

[0218] The front discharge port 201 is circular. The shape of the front discharge port 201 corresponds to the front shape of the discharge grille 450. The front discharge port 201 exposes the discharge grille 450, which is hidden inside the housing assembly 100, to the outside.

[0219] In this embodiment, the front outlet 201 is not simply selectively opened to expose the outlet grille 450, but the outlet grille 450 extends through the front outlet 201 and protrudes further forward than the front panel 210.

[0220] When the exhaust grille 450 protrudes forward of the front panel 210, it minimizes the interference between the air passing through the exhaust grille 450 and the front panel 210, and enables the exhaust air to flow further.

[0221] The first front panel side portion 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 back of the front panel body 212.

[0222] The second front panel side portion 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 back of the front panel body 212.

[0223] The first front panel side 214 and the second front panel side 216 expose the side of the cut panel module 1100 to the outside.

[0224] In addition, a first front panel end portion 215 is provided, which protrudes from the rear end of the first front panel side portion 214 toward the second front panel side portion 216. A second front panel end portion 217 is also provided, which protrudes from the rear end of the second front panel side portion 216 toward the first front panel side portion 214.

[0225] The first front panel end 215 and the second front panel end 217 are located on the back 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.

[0226] In this embodiment, the interval between the front panel body 212 and the front panel ends 215, 217 is defined as the internal interval I of the front panel. The internal interval I is shorter than the front-to-back thickness of the front panel 210.

[0227] Furthermore, the first front panel end 215 and the second front panel end 217 are arranged facing each other and spaced apart. In this embodiment, the interval between the first front panel end 215 and the second front panel end 217 is defined as the opening interval D of the front panel. The opening interval D of the front panel 210 is shorter than the left and right width W of the front panel 210.

[0228] 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 each other, and are orthogonal in this embodiment. The front panel sides 214 and 216 are arranged along the front-rear direction.

[0229] In this embodiment, the front panel body 212, front panel sides 214, 216 and front panel ends 215, 217 constituting the front panel 210 are integrally manufactured.

[0230] In this embodiment, the front panel 210 is entirely made of metal. In particular, the front panel 210 is entirely made of aluminum.

[0231] Therefore, the front panel sides 214 and 216 bend rearward from the front panel body 212, and the front panel ends 215 and 217 bend in opposite directions from the front panel sides 214 and 216.

[0232] To facilitate bending of the front panel 210, which is entirely made of metal, a first bending groove (not shown) may be formed at the bending portion between the front panel body 212 and the first front panel side 214, and a second bending groove 213a may be formed at the bending portion between the front panel body 212 and the second front panel side 216.

[0233] Furthermore, a third bending groove (not shown) may be formed at the bend between the first front panel side portion 214 and the first front panel end portion 215, and a fourth bending groove 213b may be formed at the bend between the second front panel side portion 216 and the second front panel end portion 217.

[0234] Each bending groove can extend relatively long along the vertical length of the front panel 210. Preferably, each bending groove is located inside the bent portion. Without the first and second bending grooves 213a, it is difficult to form a right angle between the front panel body 212 and the front panel side. Furthermore, without the first and second bending grooves 213a, the bent portion of the front panel body 212 and the front panel side cannot be formed flat, and may bulge or change in any 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.

[0235] An upper panel opening 203 and a lower panel opening 204 are formed on the upper side of the front panel 210 manufactured as described above. In this embodiment, since the front panel 210 is made by bending a metal plate, the upper panel opening 203 and the lower panel opening 204 are formed with the same area and shape.

[0236] The thickness of the panel module 1100 is the same as or smaller than the spacing between the front panel body 212 and the front panel ends 215, 217. The panel module 1100 can be inserted through the upper opening 203 or the lower opening 204 of the panel. The panel module 1100 can be fixed by fastening members (not shown) that pass through the front panel ends 215, 217.

[0237] The camera module 1900 is inserted into the opening 203 on the panel and is located on the upper side of the panel module 1100. The camera module 1900 can close the opening 203 on the panel.

[0238] The camera module 1900 is located above the front outlet 201 and is disposed on the back of the front panel 210. The camera module 1900 is hidden by the front panel 210. The camera module 1900 is only exposed on the upper side of the front panel 210 when it is in operation, and is hidden on the back of the front panel 210 when it is not in operation.

[0239] The front panel ends 215 and 217 surround the sides and back 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.

[0240] In this embodiment, the left and right widths of the opening 203 on the panel are the same as the left and right widths of the camera module 1900. Furthermore, in this embodiment, the left and right widths of the opening 203 on the panel are the same as the left and right widths of the panel module 1100.

[0241] In this embodiment, the front-to-back thickness of the opening 203 on the panel is the same as the front-to-back thickness of the camera module 1900. Furthermore, in this embodiment, the front-to-back thickness of the opening 203 on the panel is the same as the front-to-back thickness of the panel module 1100.

[0242] Therefore, the camera module 1900 and the panel module 1100 can be located between the front panel body 212 and the front panel ends 215, 217, and supported by the front panel body 212 and the front panel ends 215, 217.

[0243] <<Structure of the Panel Module>>

[0244] The panel module 1100 is composed of an upper panel module 1110 and a lower panel module 1120. Unlike this embodiment, the upper panel module 1110 and the lower panel module 1120 can be made as a single unit. In this embodiment, since the front panel 210 is formed with a vertical length longer than its horizontal width, inserting the panel module 1100 through the upper opening 203 or lower opening 204 of the front panel 210 is restricted when the panel module 1100 is made as a single unit.

[0245] In this embodiment, the panel 1100 is made into two panels: 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 upper panel opening 203, and the lower panel module 1120 is inserted into the front panel 210 through the lower panel opening 204.

[0246] When manufactured as two parts, it offers the advantage of easy repair and replacement of either the upper panel module 1110 or the lower panel module 1120. The integrated upper panel module 1110 and lower panel module 1120 prevent the front panel 210 from being twisted and provide rigidity against external forces.

[0247] For example, if the door cover assembly 1200 needs to be replaced, only the upper panel module 1110 needs to be separated; if the door sliding module 1300 needs to be replaced, only the lower panel module 1120 needs to be replaced.

[0248] The upper panel module 1110 and the lower panel module 1120 are inserted into the internal space I of the front panel 210 and support the front panel 210, thereby preventing the front panel 210 from deforming and bending.

[0249] In this embodiment, the upper panel module 1110 and the lower panel module 1120 are made of an injection molding material. The upper panel module 1110 and the lower panel module 1120, which are made of the injection molding material, are in contact with the front panel body 212, the front panel sides 214 and 216, and the front panel ends 215 and 217.

[0250] Since the upper panel module 1110 and the lower panel module 1120 support the front panel body 212, each front panel side 214, 216 and each front panel end 215, 217, they can suppress the bending deformation of the front panel 210 made of metal.

[0251] In this embodiment, the upper panel module 1110 and the lower panel module 1120 support the entire surfaces of the first front panel side 214 and the second front panel side 216, which are frequently subjected to external impacts.

[0252] Furthermore, in order to reduce the overall load of the door assembly 200, the upper panel module 1110 and the lower panel module 1120 only support a portion of the area of ​​the front panel body 212, rather than supporting the entire surface of the front panel body 212. That is, the upper panel module 1110 and the lower panel module 1120 form multiple buckles along the front-rear direction and support a portion of the area on the back side of the front panel body 212.

[0253] <Structural components of the upper panel module>

[0254] The upper panel module 1110 includes: an upper panel body 1130, which is disposed on the back of the front panel 210; and a panel outlet 1101, which extends through the upper panel body 1130 in the front-rear direction, is located behind the front outlet 201, and is connected to the front outlet 201.

[0255] The panel outlet 1101 corresponds to the front outlet 201. In this embodiment, both the panel outlet 1101 and the front outlet 201 are circular. To prevent air leakage, a sealing gasket 205 can be arranged between the panel outlet 1101 and the front outlet 201.

[0256] The sealing gasket 205 is disposed along the inner side of the front outlet 201 and is in close contact with the upper panel module 1110. The panel outlet 1101 is disposed on the back side of the sealing gasket 205.

[0257] The panel outlet 1101 has the same area as or is larger than the front outlet 201. In this embodiment, considering the mounting structure of the sealing gasket 205, the panel outlet 1101 is formed with a diameter slightly larger than that of the front outlet 201. The sealing gasket 205 is tightly attached to the inner side of the front outlet 201 and the inner side of the panel outlet 1101, and seals the space between the upper panel module 1110 and the front panel 210.

[0258] The exhaust grille 450 of the long-range fan assembly 400 passes sequentially through the panel exhaust outlet 1101 and the front exhaust outlet 201, and protrudes further forward than the front surface of the front panel 210.

[0259] When the discharge grille 450 protrudes outward, the front end of the fan housing 430 of the long-distance fan assembly 400 can be tightly abutted against the sealing gasket 205. When the front end of the fan housing 430 is tightly abutted against the sealing gasket 205, leakage of air flowing inside the fan housing 430 to the door assembly 200 can be prevented.

[0260] In the event of leakage of exhaust air from the remote fan assembly 400 into the interior of the door assembly 200, condensation may occur inside the door assembly 200.

[0261] In particular, since the front panel 210 is made of metal, when cooling, the exhaust air leaking into the door assembly 200 cools the area around the front exhaust port 201 and may induce a large amount of condensation around the front exhaust port 201.

[0262] In addition, in this embodiment, a door cover assembly 1200 and a display module 1500 are provided on the top panel module 1110.

[0263] Both the door cover assembly 1200 and the display module 1500 are located within the thickness of the front panel 210 when assembled on the top panel module 1110.

[0264] Therefore, the upper panel module 1110 is provided with a display mounting part 1113, and the display module 1500 is disposed in the display mounting part 1113. The display mounting part 1113 minimizes the forward protrusion of the display module 1500 from the upper panel body 1130.

[0265] The display mounting part 1113 can be configured to extend through the upper panel module 1110 in the front-to-back direction.

[0266] When the display module 1500 is assembled with the top panel module 1110, a portion of it is exposed to the outside through the display opening 202 of the front panel 210. When 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.

[0267] That is, the front surface of the display 1510 of the display module 1500 does not protrude further forward than the front panel 210, but forms a continuous plane with the front surface of the front panel 210.

[0268] The display module 1500 transmits and receives power and electrical signals through a cable passing through the upper panel module 1110.

[0269] The door cover assembly 1200 is disposed on the back of the upper panel module 1110 and can move along the back of the upper panel module 1110 in the vertical direction.

[0270] After the door cover assembly 1200 opens the front outlet 201, when it moves downward, the door cover assembly 1200 can be located at the same height as the display module 1500.

[0271] The door cover assembly 1200 is not combined with the panel module 1100. The door cover assembly 1200 is movable in the vertical direction relative to the panel module 1100.

[0272] In this embodiment, the upper panel module 1110 and the lower panel module 1120 are stacked along the vertical direction. In particular, since the upper panel module 1110 and the lower panel module 1120 are assembled to each other inside the front panel 210, shaking or operating noise is minimized when the door assembly 200 slides.

[0273] Therefore, the upper panel module 1110 and the lower panel module 1120 can be assembled in an interference fit configuration. One of the upper panel module 1110 and the lower panel module 1120 has a panel protrusion that protrudes to the opposite side, and the other has a panel clamping portion for receiving the protrusion clamping portion.

[0274] In this embodiment, a panel protrusion 1113 is formed on the top panel module 1110. The panel protrusion 1113 protrudes downward from the lower side of the top panel body 1130.

[0275] In order to accommodate the panel protrusion 1113 and assemble it with the panel protrusion 1113 in an interference fit configuration, a panel clamping portion 1123 is formed in the lower panel module 1120.

[0276] The panel clamping portion 1123 is formed on the upper side of the lower panel module 1120.

[0277] <Structural components of the lower panel module>

[0278] The lower panel module 1120 is disposed on the back of the front panel 210. The lower panel module 1120 is disposed inside the internal space I of the front panel 210. The lower panel module 1120 is located below the upper panel module 1110, supports the upper panel module 1110, and is assembled with the upper panel module 1110.

[0279] The lower panel module 1120 is disposed inside the front panel 210 and is used to prevent deformation of the front panel 210. The lower panel module 1120 is coupled to the upper panel module 1110 by an interference fit and supports the upper panel module 1110 from below.

[0280] The lower panel module 1120 includes a lower panel body 1122 assembled on the front panel 210. A panel clamping portion 1123 is formed on the upper side of the lower panel body 1122, and the panel clamping portion 1123 is clamped and engaged with the upper panel module 1110 and the panel protrusion 1113. The panel clamping portion 1123 is recessed downward.

[0281] The lower panel module 1120 is provided with a drive unit for the door sliding module 1300.

[0282] The lower panel module 1120 is fixed to the front panel 210 by means of fastening members (not shown) that pass through the first front panel end 215 and the second front end 217 respectively.

[0283] In order to secure the upper panel module 1110 and the lower panel module 1120, the fastening components are located on the back of the first front panel end 215 and the second front end 217. Therefore, the fastening structure of the door assembly 200 is not exposed to the outside and is hidden.

[0284] In particular, on the outer surface of the front panel 210, which is made of metal, fastening components or holes for fastening are concealed and not exposed.

[0285] <<Structural Components of Door Cover Assembly>>

[0286] The door assembly 1200 is a structural element for opening and closing the front outlet 201 configured on the door assembly 200.

[0287] The door assembly 1200 opens the front outlet 201 to extend the movement path of the remote fan assembly 400. The remote fan assembly 400 can protrude outward from the door assembly 200 through the open front outlet 201.

[0288] The door cover assembly 1200 is located on the movement path of the remote fan assembly 400. When the front outlet 201 is opened, the door cover assembly 1200 moves to the outside of the movement path of the remote fan assembly 400.

[0289] The door cover assembly 1200 includes: a door cover 1210, disposed on the front outlet 201, moving along the front outlet 201 in the front-rear direction and opening and closing the front outlet 201; a door cover housing 1220, located behind the door cover 1210 and disposed on the door assembly 200; a door cover moving module 1600, disposed on the door cover housing 1220, located between the door cover housing 1220 and the door cover 1210, assembled on the back of the door cover 1210, causing the door cover 1210 to move in the front-rear direction; and a door cover moving module 1700, disposed on either the door cover housing 1220 or the door assembly 200, causing the door cover housing 1220 to move in the vertical direction.

[0290] The door cover 1210 is inserted into the front outlet 201 and provides a continuous surface with the front panel 210. The door cover 1210 can be moved rearward by operating the door cover moving module 1600. After the door cover 1210 separates from the front outlet 201, the entire door cover assembly 1200 can be moved downward by operating the door housing moving module 1700.

[0291] When the door cover 1210 is moved downward using the door housing moving module 1700, the front discharge port 201 opens in the front-to-back direction.

[0292] For ease of explanation, the state in which the door cover 1210 is moved from the front outlet 201 to the rear using the door cover moving module 1600, and the front panel 210 and the door cover 1210 are separated in the front-rear direction, is defined as the first front open state.

[0293] When the first front panel is open, the long-range fan assembly 400 is concealed by the door cover 1210 and is not exposed to the user. When the first front panel is open, air inside the enclosure can escape into the room through the gap between the door cover 1210 and the front panel 210.

[0294] When the first front panel is open, the remote fan assembly 400 is arranged behind the door cover 1210. When the first front panel is open, the door cover 1210 is located further back than the front panel body 212.

[0295] Furthermore, the state in which the door cover 1210 is moved from the rear of the front outlet 201 to the underside of the front outlet 201 by the door housing moving module 1700, and the front outlet 201 is not blocked by the door cover 1210, is defined as the second front open state.

[0296] When the second front panel is open, the cover 1210 is located below the front exhaust port 201 and the long-range fan assembly 400. When the second front panel is open, the cover 1210 is located further rearward than the front panel body 212.

[0297] When the second front panel is open, the long-range fan assembly 400 is exposed to the user through the front exhaust port 201. When the second front panel is open, the long-range fan assembly 400 moves forward and can protrude outward from the front exhaust port 201. In the state where the long-range fan assembly 400 protrudes outward from the front panel 210, it can exhaust air into the room.

[0298] When the second front is open, at least one of the door cover housing 1220 or the door cover 1210 is located behind the display 1500. When the second front is open, even if the door cover 1210 moves downward, it will not interfere with the display 1500. When the second front is open, the door cover 1210 and the back of the display 1500 are separated by a predetermined distance.

[0299] That is, when the first front is open, the door cover 1210 needs to move further back than the front panel 210 to prevent interference with the door cover 1210 and the display 1500 when the second front is opened.

[0300] In this embodiment, when the first front is open, the retraction depth of the door cover 1210 is 13mm, and when the second front is open, the descent distance of the door cover 1210 is 330mm.

[0301] The door cover 1210 includes: an outer door cover 1212, which forms a continuous surface with the front panel 210; an inner door cover 1214, which is attached to the back of the outer door cover 1212 and assembled to the door cover moving module 1600, and moves along the front-back direction by the driving force of the door cover moving module 1600; and a moving member 1230, which is disposed on the inner door cover 1214 and protrudes rearward from the inner door cover 1214, and transmits the driving force from the door cover moving module 1600 through mutual interference with the door cover moving module 1600, and transmits the driving force required for the inner door cover 1214 to move forward or backward by mutual interference.

[0302] The movable component 1230 is assembled with the cover guide 1640 of the cover moving module 1600, which will be described later. The movable components 1230 interfere with each other when the cover guide 1640 rotates, causing the cover 1210 coupled with the movable component 1230 to move forward or backward.

[0303] The outer door cover 1212 has the same area and shape as the front outlet 201.

[0304] The inner cover 1214 is not limited to the area or shape of the front outlet 201. In this embodiment, the inner cover 1214 is formed to be wider than the outer cover 1212.

[0305] Therefore, when the outer door cover 1212 is inserted into the front outlet 201, the inner door cover 1214 is in close contact with the edge of the front outlet 201.

[0306] In this embodiment, the front discharge port 201 and the outer cover 1212 are formed as circles with the same diameter and shape, and the inner cover 1214 is formed as a circle with a diameter larger than that of the front discharge port 201. In particular, the outer edge of the inner cover 1214 is formed flat along the vertical direction and covers the boundary between the front discharge port 201 and the outer cover 1212.

[0307] The outer door cover 1212 can be formed of the same material as the front panel 210. The entire outer door cover 1212 can be formed of aluminum. The outer door cover 1212 can also be coated with a metal material only on its front surface. When only the front surface is coated with a metal material, the load on the door cover 1210 can be reduced, and the operating load on the door cover moving module 1600 and the door housing moving module 1700 can be reduced.

[0308] The outer door cover 1212 is formed with the same thickness as the front panel body 212. When inserted into the front outlet 201, it can form a continuous surface with the front and rear surfaces of the front panel body 212.

[0309] The inner door cover 1214 is attached to the back of the outer door cover 1212, is bonded to the back of the outer door cover 1212, and is formed to be wider than the diameter of the outer door cover 1212.

[0310] The center of the inner door cover 1214 coincides with the center of the outer door cover 1212.

[0311] In this embodiment, the inner door cover 1214 is formed in the shape of a disc. Unlike this embodiment, it is also acceptable for the inner door cover 1214 to be formed in a ring shape in space at the center.

[0312] The inner door cover 1214 includes: a core door cover 1215, located at the center and closely attached to the back of the outer door cover 1212; an edge door cover 1216, located further outward in the radial direction than the core door cover 1215, closely attached to the outer edge of the outer door cover 1212; a connecting door cover 1217, connecting the core door cover 1215 and the edge door cover 1216, and spaced apart from the outer door cover 1212 to form a space 1119; and a connecting rib 1218, connecting the core door cover 1215, the connecting door cover 1217 and the edge door cover 1216, and protruding from the connecting door cover 1217 toward the outer door cover 1212.

[0313] The connecting ribs 1218 are arranged from the center of the inner door cover 1214 outward in a radial direction. Multiple connecting ribs 1218 are provided, and they are arranged at equal angles to the center of the inner door cover 1214.

[0314] The front surface of the connecting rib 1218 can be tightly attached to the back of the outer door cover 1212. The back of the connecting rib 1218 is integrally formed with the connecting door cover 1217. The inner side of the connecting rib 1218 is connected to the core door cover 1215, and the outer side is connected to the edge door cover 1216.

[0315] The space 1119 is formed between the core door cover 1215, the edge door cover 1216 and the plurality of connecting ribs 1218.

[0316] The spaces 1119 are arranged radially with the center of the inner door cover 1214 as a reference, and the spaces 1119 are arranged at equal angles. The rigidity of the inner door cover 1214 is improved by utilizing the structure of the connecting ribs 1218 and the spaces 1119.

[0317] The core cover 1215 is circular when viewed from the front, and the edge cover 1216 is annular.

[0318] The core cover 1215 has a core opening 1211 for inserting a portion of the structural element of the cover moving module 1600. By inserting a portion of the structural element of the cover moving module 1600 into the core opening 1211, the front-to-back thickness of the cover assembly 1200 can be minimized.

[0319] The edge cover 1216 is formed parallel to the outer cover 1212. The edge cover 1216 includes an edge flange 1213 that protrudes further outward than the outer edge of the outer cover 1212.

[0320] The outer cover 1212 and the inner cover 1214 can be manufactured integrally. In this case, the edge flange 1213 is formed on the outer edge of the cover 1210.

[0321] The edge flange 1213 is located further rearward than the inner door cover 1214. The edge flange 1213 protrudes further outward in the radial direction than the inner door cover 1214.

[0322] In this embodiment, the edge flange 1213 is formed in a circular shape along the outer edge of the outer door cover 1214.

[0323] When the door cover 1210 is inserted into the front outlet 201 of the front panel 210, the edge flange 1213 is in close contact with the back of the front panel 210 and with the boundary between the front outlet 201 and the outer door cover 1212.

[0324] The edge flange 1213 is formed in a ring shape when viewed from the front. A sealing gasket (not shown) may be disposed on the edge flange 1213. The sealing gasket may be in close contact with the boundary between the front outlet 201 and the outer cover 1212.

[0325] When the door cover 1210 is in close contact with the front panel 210, the sealing gasket can reduce contact noise and seal the boundary between the front outlet 201 and the outer door cover 1212.

[0326] When the far-field fan assembly 400 is not operating and only the near-field fan assembly is operating, condensation may occur at the boundary if cool air leaks through the boundary.

[0327] A groove 1213a is formed by a rearward recess on the front surface of the edge flange 1213. The groove 1213a is annular when viewed from the front. The sealing gasket can be inserted into the groove 1213a for installation.

[0328] The thickness of the door cover assembly 1200 constitutes a large portion of the thickness of the door assembly 200. Therefore, minimizing the front-to-back thickness of the door cover assembly 1200 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 on the door sliding module 1300 can be minimized.

[0329] The core opening 1211 extends through the outer door cover 1214 in the front-to-back direction. The motor of the door cover moving module 1600, which will be described later, is inserted into the core opening 1211.

[0330] The movable component 1230 is disposed on the inner door cover 1214. The movable component 1230 may also be integrally manufactured with the inner door cover 1214.

[0331] In this embodiment, the movable component 1230 is additionally manufactured and then assembled onto the inner door cover 1214. Therefore, the movable component 1230 is configured with an assembly structure for assembling with the inner door cover 1214.

[0332] The movable component 1230 includes: a movable component body 1232, which protrudes rearward from the inner door cover 1214; and a movable component guide 1234, which protrudes inward or outward from the movable component body 1232 and is inserted into the guide groove 1650 of the cover guide 1640 described later.

[0333] When viewed from the front, the main body 1232 of the movable component has an overall ring shape.

[0334] A moving part fastening portion 1236 is formed on the moving part body 1232 to be fastened to the inner door cover 1214. The moving part fastening portion 1236 protrudes inward to the moving part body 1232. The protruding direction of the moving part fastening portion 1236 is opposite to the protruding direction of the moving part guide 1234.

[0335] A fastening portion 1214a corresponding to the fastening portion 1236 of the moving member is formed on the inner door cover 1214. The fastening portion 1214a protrudes into the core opening 1211. The fastening portion 1214a is inserted into the interior of the moving member body 1232.

[0336] A moving part body support 1233 is disposed on the inner peripheral surface of the moving part body 1232 to support the rear end of the core door cover 1215.

[0337] The movable component body 1232 and the movable component guide 1234 are integrally manufactured. The movable component body 1232 protrudes rearward from the door cover 1210. The movable component body 1232 extends to a length that can interfere with the cover guide 1640 described later.

[0338] In this embodiment, the moving part guide 1234 is orthogonal to the moving part body 1232. The moving part guide 1234 can be configured along a direction parallel to the front panel body 212.

[0339] The protruding direction of the movable guide 1234 can vary depending on its engagement with the cover guide 1640. In this embodiment, since the movable body 1232 is inserted into the cover guide 1640, the movable guide 1234 protrudes outward from the movable body 1232. In contrast, when the movable body 1232 is located outside the cover guide 1640, the guide protrusion protrudes inward from the movable body 1232.

[0340] The movable guide 1234 is assembled in the guide groove 1650 of the cover guide 1640 described later. When the cover guide 1640 rotates, the movable guide 1234 can move forward or backward along the guide groove 1650.

[0341] In addition, the door cover housing 1220 can move along the upper panel 1110 in the vertical direction.

[0342] The door cover housing 1220 includes: a door cover housing body 1222, which moves vertically along the upper panel 1110; a door cover storage portion 1223, which is disposed on the door cover housing body 1222 and opens forward, wherein the door cover body 1222 is selectively accommodated in the door cover storage portion 1223; and a moving module mounting portion 1224, which is disposed on the door cover housing body 1222, opens forward, communicates with the door cover storage portion 1223, and is located at a position further rearward than the door cover storage portion 1223, wherein the door cover moving module 1600 is disposed in the moving module mounting portion 1224.

[0343] The door cover housing 1220 is located within the inner space I of the front panel 210. The left and right sides of the door cover housing 1220 are located inside the inner space I, and most of them are exposed through the open space D.

[0344] The left and right sides of the door cover housing 1220 are located in front of the front panel ends 215 and 217. The front panel ends 215 and 217 interlock with each other in the front-rear direction of the door cover housing 1220, preventing the door cover housing 1220 from separating rearward. The door cover housing 1220 can slide in the vertical direction, but its front-rear movement is restricted.

[0345] The door cover body 1222 can move vertically along the internal gaps I formed on the left and right sides of the front panel 210, respectively. The door cover body 1222 moves vertically via the door cover moving module 1700.

[0346] The thickness of the main body 1222 of the door cover housing in the front-to-back direction is smaller than that of the internal spacing I.

[0347] When the door cover moving module 1600 is in operation, the door cover 1210 moves to the rear and can be stored in the door cover storage part 1223. When the front outlet 201 is closed, the door cover 1210 is located further forward than the door cover housing 1220 and is on the same plane as the front panel 210.

[0348] The front of the cover storage portion 1223 is open to accommodate the cover 1210, and is circular when viewed from the front. The cover storage portion 1223 is recessed rearward from the cover housing 1222.

[0349] The top surface 1222a of the main body 1222 of the door cover is formed as a curved surface and is arranged to surround the edge of the door cover 1210. The door cover 1210 can be arranged below the top surface 1222a. The door cover storage part 1223 is arranged below the top surface 1222a.

[0350] The center of curvature of the top surface 1222a may coincide with the center of curvature of the cover 1210. The top surface 1222a is located outside the radial direction of the cover 1210.

[0351] In addition, the upper panel body 1130 is provided with a door cover top wall 1114 that interferes with the door cover housing 1220 and restricts the movement of the door cover assembly 1200.

[0352] The top wall 1114 of the door cover protrudes rearward from the upper panel body 1130.

[0353] The top wall 1114 of the door cover can be formed into a shape corresponding to the upper side surface of the door cover housing 1220. In this embodiment, since the upper side surface of the door cover housing 1220 is formed into an arc shape when viewed from the front, the top wall 1114 of the door cover is formed into an arc shape with a diameter larger than that of the door cover housing 1220.

[0354] The top wall 1114 of the door cover is formed in such a way that it surrounds the entire upper side surface of the door cover housing 1220. The lower side surface of the top wall 1114 is in close contact with the door cover housing 1220 and is capable of preventing air leakage inside the housing.

[0355] The top wall 1114 of the door cover may have the same center of curvature as the panel outlet 1101. The top wall 1114 of the door cover is formed with a larger radius of curvature than the panel outlet 1101.

[0356] The top wall 1114 of the door cover can cut off the flow of air from inside the enclosure to the camera module 1900. If the cool air from the enclosure assembly 100 is directly supplied to the camera module 1900, condensation may occur on the camera module 1900.

[0357] To limit the upper movement of the door cover assembly 1200, the top wall 1114 of the door cover is preferably located above the panel outlet 1101.

[0358] When the door cover assembly 1200 moves upward and its top surface 1222a contacts the top wall 1114 of the door cover, the door cover 1210, the panel outlet 1101, and the front outlet 201 are arranged in a row in the front-back direction. If the door cover assembly 1200 is not in its correct position, the door cover 1210 is blocked by the upper panel body 1130 and cannot move towards the front outlet 201.

[0359] Each side 1222b of the main body 1222 of the door cover faces each end 215, 217 of the front panel 210. The side 1222b is located within the inner gap I of the front panel 210 and can move vertically along the inner gap I.

[0360] The movable module mounting portion 1224 is recessed rearward from the main body 1222 of the door cover housing. The movable module mounting portion 1224 is connected to the door cover storage portion 1223 and is located further rearward than the door cover storage portion 1223.

[0361] The front of the movable module mounting portion 1224 is open, and it is circular when viewed from the front. The movable module mounting portion 1224 is formed with a smaller area than the door cover 1210, and is located on the rear side of the door cover 1210. The front-to-back thickness of the movable module mounting portion 1224 is less than the thickness of the door cover housing 1220.

[0362] In this embodiment, the movable module mounting portion 1224 is circular when viewed from the front. The center of the movable module mounting portion 1224 coincides with the center of the door cover 1210.

[0363] In addition, most of the structural components of the door cover moving module 1600 are arranged in the moving module mounting section 1224.

[0364] <<Structural Components of the Door Cover Moving Module>>

[0365] The door cover moving module 1600 is a structural element for moving the door cover 1210 in the front-back direction. The door cover moving module 1600 is a structural element for realizing the first front opening.

[0366] The cover 1210 can be moved in the front-back direction in various ways. For example, the cover 1210 can be connected to an actuator such as a hydraulic cylinder and moved in the front-back direction by the piston of the hydraulic cylinder. As another example, the cover 1210 can be moved in the front-back direction by a motor and a multi-section connecting structure.

[0367] However, since structures such as the connecting parts and hydraulic cylinders need to be equipped with structures that move or rotate towards the front of the housing assembly 100, the front-to-back thickness of the door assembly 200 will inevitably increase.

[0368] In this embodiment, the door cover moving modules 1600 change the rotational force of the door cover motor by interfering with each other, so that the door cover 1210 moves in the front-back direction.

[0369] The structure of this door cover moving module 1600 enables the door assembly 200 to have a minimal front-to-back thickness.

[0370] The door cover moving module 1600 includes: a door cover motor 1610, located behind the door cover 1210 and disposed in the door cover housing 1220; a door cover motor shaft 1611 disposed in the door cover motor 1610 along the front-rear direction; a sun gear 1620, which is shaft-engaged with the door cover motor and rotates by the operation of the door cover motor; and a plurality of planetary gears 1630, which are rotatably assembled with the door cover housing 1220, mesh with the sun gear 1620, and are disposed in the door cover housing 1220. The sun gear 1620 is located on the outer side in the radial direction; the cover guide 1640 is disposed between the cover housing 1220 and the cover 1210, and the plurality of planetary gears 1630 are located on the inner side of the cover guide 1640 and mesh with the plurality of planetary gears 1630 respectively. When the planetary gears 1630 rotate, the cover guide 1640 rotates in a clockwise or counterclockwise direction, and the cover 1210 moves forward or backward due to its interference with the cover 1210.

[0371] The sun gear 1620 is a pinion with teeth formed on its outer surface along the circumferential direction.

[0372] The planetary gear 1630 is a small gear with teeth formed on its outer surface along the circumferential direction. In this embodiment, three planetary gears 1630 are configured. The three planetary gears 1630 respectively mesh with the outer surface of the sun gear 1620 and rotate simultaneously when the sun gear 1620 rotates.

[0373] Multiple planetary gears 1630 and sun gears 1620 are inserted into the movable module mounting portion 1224 of the door cover housing 1220. The movable module mounting portion 1224 is configured with a sun gear mounting portion 1225 for mounting the sun gear 1620 and a planetary gear mounting portion 1226 for mounting each planetary gear 1630.

[0374] The shaft of the sun gear 1620 can be inserted into the sun gear mounting part 1225, and the sun gear 1620 can rotate in place while assembled in the sun gear mounting part 1225.

[0375] The door cover motor 1610 is located further forward than the sun gear 1620. The door cover motor 1610 is located inside the moving module mounting section 1224.

[0376] The door cover motor 1610 has a door cover motor shaft 1611 arranged from the front to the rear and is coupled with a sun gear 1620 arranged at the rear of the door cover motor 1610.

[0377] To secure the door cover motor 1610 to the door cover housing 1220, a motor housing 1660 is also provided. When the door cover motor 1610 is located on the back of the door cover housing 1220, the door cover motor 1610 can be directly fastened to the door cover housing 1220.

[0378] Since the structure described above increases the front-to-back thickness of the door cover assembly 1200, in this embodiment, the door cover motor 1610 is located inside the door cover housing 1220, and a motor housing 1660 is configured to fix the door cover motor 1610.

[0379] The motor housing 1660 can be assembled into the door cover housing 1220. In this embodiment, the motor housing 1660 is inserted into the moving module mounting portion 1224 with the door cover motor 1610 assembled inside. With the structure described above, the front-to-back thickness of the door cover assembly 1200 can be minimized.

[0380] Furthermore, the motor housing 1660 is located inside the cover guide 1640, which is shaped to surround the outer side of the motor housing 1660.

[0381] When viewed from the front, the motor housing 1660 is arranged between the door cover motor 1610 and the cover guide 1640. When viewed from the front-rear direction, the motor housing 1660 is arranged between the door cover housing 1220 and the door cover 1210.

[0382] In order to minimize the front-to-back length when assembling the door cover motor 1610 and the motor housing 1660, the door cover motor 1610 is assembled in a form that penetrates the motor housing 1660.

[0383] For this purpose, the motor housing 1660 has a motor through-part 1662 through which the door cover motor 1610 passes. The motor through-part 1662 is formed along the front-rear direction. The motor through-part 1662 is located behind the core opening 1211 of the inner door cover 1214. When the motor housing 1660 is assembled, the door cover motor 1610 passes through the motor through-part 1662 and is inserted into the core opening 1211.

[0384] The door cover motor 1610 is inserted not only into the motor housing 1660, which is the assembly structure, but also into the structure of the door cover 1210, which moves in the front-back direction. Therefore, the front-back thickness of the door assembly 200 can be minimized.

[0385] When viewed from the front and rear, the cover guide 1640 is disposed between the cover housing 1220 and the cover 1210. When viewed from the front, the cover guide 1640 is formed in a ring shape with an opening along the front and rear direction.

[0386] The cover guide 1640 can be rotated by the rotational force transmitted from the planetary gear 1630. When viewed from the front, the cover guide 1640 can rotate in either a clockwise or counterclockwise direction.

[0387] The cover guide 1640 and the cover 1210 are assembled in a manner that allows them to move relative to each other. When the cover guide 1640 rotates, the cover 1210 can move forward or backward by interfering with each other.

[0388] The cover guide 1640 includes: a cover guide body 1640, which is formed in a ring shape; a guide gear 1642, which is arranged along the inner circumferential surface of the cover guide body 1640 and meshes with a plurality of planetary gears 1630; and a guide groove 1650, which is arranged along the circumferential direction of the cover guide body 1640 and is assembled with the cover interference portion 1230 (in this embodiment, a moving guide 1234) in a movable manner. When rotated in a clockwise or counterclockwise direction, the cover 1210 moves forward or backward by interfering with the moving guide 1234.

[0389] When the cover guide 1640 rotates clockwise or counterclockwise using the planetary gear 1630, the movable member 1230 of the cover 1210 interferes with the cover guide 1640. During this interference, although the movable member guide 1234 does not rotate, it moves along the guide groove 1650 due to the rotation of the cover guide 1640.

[0390] The guide gear 1642 is in the shape of a ring gear. The guide gear 1642 is disposed on the inner circumferential surface of the cover guide body 1640.

[0391] In this embodiment, the guide groove 1650 is formed penetrating the cover guide body 1642. Unlike this embodiment, the guide groove 1650 can be formed as a slot. In this embodiment, to minimize the thickness of the cover guide 1640, the guide groove 1650 is formed penetrating both the inner and outer sides of the cover guide 1640. In this embodiment, the moving guide 1234 is inserted into the guide groove 1650.

[0392] In this embodiment, the through direction of the guide groove 1650 is parallel to the front surface of the front panel 210. The engagement direction of the guide groove 1650 and the moving guide 1234 is a direction that intersects the front-rear direction.

[0393] The guide groove 1650 is formed along the front-back direction. The movable guide 1234 interferes with the guide groove 1650, and the movable guide 1234 moves along the front-back direction by utilizing the interference.

[0394] The guide groove 1650 extends relatively long along 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 cover 1210 can move forward or backward according to the length of the guide groove 1650 in the front-back direction.

[0395] The guide grooves 1650 are formed in multiple locations, and three are configured in this embodiment. The three guide grooves 1650 are preferably configured at equal intervals with respect to the center of the cover guide 1640.

[0396] When the cover guide 1640 rotates clockwise or counterclockwise, the guide groove 1650 and the moving guide 1234 interfere with each other.

[0397] Since the guide groove 1650 is arranged in the front-to-back direction along the circumference of the cover guide 1640, when the cover guide 1640 rotates, although the moving guide 1234 does not rotate, the moving guide 1234 moves forward or backward along the guide groove 1650.

[0398] The axis center of the cover guide 1640 coincides with the axis center of the sun gear 1620. The cover guide 1640 is inserted into the mobile module mounting portion 1224 and rotates inside the mobile module mounting portion 1224.

[0399] The guide gear 1642 is arranged in a circular shape along the inner circumferential surface of the cover guide body 1642. The guide gear 1642 is toothed with its teeth facing the axial center of the cover guide 1640.

[0400] The door cover motor 1610, a plurality of planetary gears 1630 and a sun gear 1620 are arranged on the inner side of the cover guide 1640. The structure described above can minimize the front-to-back thickness of the door cover moving module 1600.

[0401] <<Structural Components of the Door Housing Moving Module>>

[0402] The door housing moving module 1700 is a structural element that moves the door cover assembly 1200 in a vertical direction and sets the front outlet 201 configured on the front panel 210 to a second front open state.

[0403] In this embodiment, the door housing moving module 1700 is respectively disposed on the left and right sides of the door cover housing 1220. Unlike this embodiment, there may also be only one door housing moving module 1700.

[0404] In this embodiment, since the door housing moving module 1700 also serves to fix the vertical position of the door cover assembly 1200, two door housing moving modules 1700 are configured on the left and right sides in order to distribute the supporting load of the door cover assembly 1200.

[0405] The door housing moving module 1700 can move the door cover assembly 1200 along the front panel 210 in the vertical direction. In particular, the door housing moving module 1700 can move the entire door cover housing 1220, to which the door cover 1210 is attached, in the vertical direction.

[0406] The door cover assembly 1200 moves along the internal interval I of the front panel 210. Since it is disposed inside the front panel 210, the installation space of the door housing moving module 1700 is preferably configured below the internal interval I.

[0407] In this embodiment, the door housing moving module 1700 is provided with a structure that is less than or equal to the thickness of the front panel 210. In this embodiment, the front-to-back thickness of the door housing moving module 1700 is less than or equal to the thickness of the front panel 210.

[0408] The door cover housing 1220 can be moved to the lower side of the front outlet 201 by the door cover moving module 1700, and the front outlet 201 can realize the second front opening.

[0409] The door cover 1210, which is positioned on the moving path of the remote fan assembly 400 facing the front outlet 201, can move downward toward the front outlet 201 by means of the operation of the door housing moving module 1700.

[0410] When the door cover 1210 moves downward in the vertical direction, no part of the door cover 1210 will overlap with the front outlet 201. The door housing moving module 1700 moves the door cover housing 1220 outside the movement path of the remote fan assembly 400.

[0411] When the second front is open, the discharge grille 450 can be exposed through the front discharge port 201.

[0412] The door housing moving module 1700 includes: a left door housing moving module, disposed on the left side of the door housing; and a right door housing moving module, disposed on the right side of the door housing.

[0413] The left and right door housing moving modules are identical structural components and are symmetrical.

[0414] The door housing moving module 1700 includes: a rack 1710, disposed on the front panel 210 or panel module 1100, and extending longitudinally in the vertical direction; a gear assembly 1730, disposed on the door cover assembly 1200, meshing with the rack 1710, and moving along the rack 1710 during rotation; a gear drive motor 1720, disposed on the door cover assembly 1200, providing driving force to the gear assembly 1730; and a vertical moving track 1790, disposed on the door cover assembly 1200 and the rack 1710, guiding the movement of the door cover assembly 1200.

[0415] The door housing moving module 1700 may also include a gear housing 1780 for mounting the gear assembly 1730 and the gear drive motor 1720. Without the gear housing 1780, the gear assembly 1730 and the gear drive motor 1720 are directly mounted on the door cover housing 1220.

[0416] In this embodiment, in order to facilitate assembly and repair, after assembling the gear assembly 1730 and the gear drive motor 1720 in the gear housing 1780, the gear housing 1780 is assembled on the door cover housing 1220.

[0417] The rack 1710 extends relatively long along the vertical length direction of the front panel 210. The rack 1710 is disposed within the interior space I of the front panel 210.

[0418] The rack 1710 can be configured on either the front panel 210 or the panel module 1100. In this embodiment, since the front panel 210 is made of metal, if the rack 1710 is directly mounted, a hole needs to be formed to penetrate the metal front panel 210. In this case, cold air may leak through the hole, and external impurities may flow into the front panel 210.

[0419] In this embodiment, to prevent this situation, a rack 1710 is arranged in the panel module 1100, which is not the front panel 210. In this embodiment, the rack 1710 is assembled in the upper panel module 1110. The rack 1710 is disposed in the portion of the upper panel module 1110 that is inserted into the internal spacer I.

[0420] The rack 1710 and the front panel sides 214, 216 are arranged facing each other.

[0421] In this embodiment, two racks 1710 are configured, each rack 1710 being disposed on the left and right sides of the front panel 210, respectively, with an internal spacing I. When it is necessary to distinguish multiple racks 1710, the rack disposed on the left side of the front panel 210 when viewed from the front is defined as the left rack, and the rack disposed on the right side is defined as the right rack. The left rack and the right rack are symmetrical.

[0422] <Structural Components and Mounting Structure of the Rack>

[0423] The rack 1710 includes: a rack body 1712, which extends longitudinally in the vertical direction; and rack tooth portions 1711, which are disposed on the rack body 1712, disposed at intervals I inside 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 (the first front panel side in this embodiment), and are arranged in multiple portions along the length direction of the rack body 1712.

[0424] The rack toothed portion 1711 protrudes from the rack body 1712 toward the opposite side of the front panel. The rack toothed portion 1711 may be additionally manufactured and assembled onto the rack body 1712. In this embodiment, the rack toothed portion 1711 and the rack body 1712 are integrally manufactured.

[0425] The teeth of the rack toothed portion 1711 are arranged horizontally. Multiple rack toothed portions 1711 are arranged vertically. The gear assembly meshes with the rack toothed portions 1711 and can move vertically along the rack toothed portions 1711.

[0426] The rack 1710 includes: a rack fitting portion 1713 disposed on the rack body 1712 and fitting tightly against the end 217 of the front panel; a rack locking portion 1714 disposed on the rack body 1712 and assembled with the upper panel module 1110 to form a mutual locking with the upper panel module 1110; a track mounting portion 1719 disposed on the rack body 1712, and a vertical moving track 1790 disposed on the track mounting portion 1719.

[0427] In this embodiment, the rack tooth portion 1711, rack body 1712, rack fitting portion 1713, rack locking portion 1714, and track mounting portion 1719 are integrally manufactured by injection molding. Unlike this embodiment, a portion of the rack tooth portion 1711, rack body 1712, rack fitting portion 1713, rack locking portion 1714, or track mounting portion 1719 may also be separately manufactured and assembled.

[0428] The rack contact portion 1713 is disposed within the internal space I of the front panel 210 and abuts against the inner side surface of the front panel end portion 217. A fastening member for fixing the rack 1710 passes through the front panel end portion 217 and the rack contact portion 1713 for fastening.

[0429] The rack contact portion 1713 intersects with the rack main body 1712, and is orthogonal in this embodiment. The rack contact portion 1713 is disposed opposite to the front surface of the front panel 210, and the rack main body 1712 is disposed along the front-rear direction.

[0430] The rail mounting portion 1719 is formed as a recessed groove shape in the rack main body 1712. The rail mounting portion 1719 is recessed from the rack main body 1712 toward the front panel side portion 216. The rail mounting portion 1719 opens toward the opposite front panel side portion 215.

[0431] The rail mounting portion 1719 extends longitudinally along the length direction of the rack 1710. In this embodiment, the rail mounting portion 1719 is disposed along the up-down direction.

[0432] The vertical movement rail 1790 is inserted into the rail mounting portion 1719 for installation. The vertical movement rail 1790 can be located within the left-right width of the rack contact portion 1713.

[0433] Since the vertical movement rail 1790 is arranged within the recessed rail mounting portion 1719, the installation space for the rack 1710 and the vertical movement rail 1790 can be minimized.

[0434] Since the rail mounting portion 1719 is recessed from the rack main body 1712 toward the second front panel side portion 216, the vertical movement rail 1790 can be located within the internal space I.

[0435] In this embodiment, the rail mounting portion 1719 is formed in a "C" shape and opens toward the opposite front panel side portion. The vertical movement rail 1790 is inserted into the open portion.

[0436] The rail mounting portion 1719 includes: a first rail mounting wall 1719a, connected to the rack main body 1712; a second rail mounting wall 1719b, intersecting with the first rail mounting wall 1719a and disposed along the front-rear direction, and the vertical movement rail 1790 is fixed to the second rail mounting wall 1719b; a third rail mounting wall 1719c, intersecting with the second rail mounting wall 1719b and disposed opposite to the first rail mounting wall 1719a.

[0437] The track mounting portion 1719 forms a track mounting space 1719d surrounded by a first track mounting wall 1719a, a second track mounting wall 1719b, and a third track mounting wall 1719c. The track mounting space 1719d is open to the opposite side of the front panel.

[0438] The first track mounting wall 1719a is arranged along the left-right direction and faces the rack-fitting portion 1713. The second track mounting wall 1719b is arranged along the front-back direction and faces the front panel sides 216 and 217. In this embodiment, the first track mounting wall 1719a and the second track mounting wall 1719b are orthogonal.

[0439] A rack space 1710a can be formed between the rack fitting portion 1713, the first track mounting wall 1719a, and the second track mounting wall 1719b. Since the rack 1710 is integrally manufactured by injection molding, the rack fitting portion 1713, the first track mounting wall 1719a, the second track mounting wall 1719b, the third track mounting wall 1719c, and the rack locking portion 1714 are preferably formed to have similar thicknesses.

[0440] The rack space 1710a opens to the front panel sides 216 and 217. The opening direction of the rack space 1710a is opposite to the opening direction of the track mounting space 1719d. The opening direction of the track mounting space 1719d is the same as the protruding direction of the rack tooth portion 1711.

[0441] The rack space 1710a opens toward the front panel side 216 on which it is arranged, and the rail mounting space 1719d opens toward the opposite front panel side 217 on which it is not arranged.

[0442] The rack locking part 1714 protrudes from the track mounting part 1719 to the upper panel module 1110. The rack locking part 1714 is inserted into the back of the upper panel module 1110 and inhibits the rack 1710 from moving in the left and right direction.

[0443] The rack locking portion 1714 includes: a first rack locking portion 1714a, which protrudes forward from the third track mounting wall 1719c; and a second rack locking portion 1714b, which protrudes from the first rack locking portion 1714b in a left-right direction.

[0444] The first rack locking portion 1714a and the second rack locking portion 1714b intersect and are bent into a "「" shape in this embodiment. The second rack locking portion 1714b can be assembled with the upper panel module 1110 in an interference fit configuration.

[0445] The upper panel module 1110 provides a structure capable of accommodating the rack 1710.

[0446] The upper panel module 1110 includes: an upper panel body 1130, which is disposed on the back of the front panel 210; and a panel outlet 1101, which extends through the upper panel body 1130 in the front-rear direction, is located behind the front outlet 201, and is connected to the front outlet 201.

[0447] The upper panel body 1130 includes: an upper panel front portion 1132, located on the back of the front panel 210, and forming the panel outlet 1101; and an upper panel side portion 1134, connected to the upper panel front portion 1132, and located on the inner side of the front panel 210.

[0448] The front part 1132 of the upper panel is located between the door cover housing 1220 and the front panel 210.

[0449] The upper panel side portion 1134 is located between the rack 1170 and the side of the front panel 210 (in this embodiment, the front panel side portion). The upper panel side portion 1134 supports the rack 1170 and can be assembled with the rack 1170.

[0450] The upper panel side portion 1134 may be configured on one of the first front panel side portion 214 or the second front panel side portion 216 of the front panel 210.

[0451] The front portion 1132 and the side portion 1134 of the upper panel can be separately manufactured and then assembled. In this embodiment, the front portion 1132 and the side portion 1134 of the upper panel are integrally manufactured by injection molding.

[0452] The upper panel body 1130 includes: a front panel support portion 1135, formed on the front portion 1132 of the upper panel, closely attached to the back of the front panel body 212, supporting the back of the front panel body 212; a front panel joining portion 1136, formed on the front portion 1132 of the upper panel, which engages with a sealing gasket 205 disposed on the panel outlet 1101; and a front panel insertion portion 1137, formed on the front portion 1132 of the upper panel, which is assembled with the rack 1710 to form a locking mechanism.

[0453] The upper panel body 1130 includes: a first panel side support 1138 formed on the upper panel side 1134, closely attached to the front panel sides 214 and 126 of the front panel 210, supporting the front panel side of the front panel 210; and a second panel side support 1139 formed on the upper panel side 1134, supporting the front panel ends 215 and 217 of the front panel 210.

[0454] The upper panel body 1130 is formed into a generally flat plate shape and is buckled along the front-to-back direction.

[0455] The front panel joint 1136 forms the edge of the panel outlet 1101. The front panel joint 1136 protrudes from the upper panel body 1130. In this embodiment, the front panel joint 1136 can protrude toward the panel outlet 1101.

[0456] The front support portion 1135 of the panel protrudes forward from the upper panel body 1130 and is closely attached to the back of the front panel 210.

[0457] The front panel insertion part 1137 protrudes forward from the upper panel body 1130 and can be closely attached to the back of the front panel 210.

[0458] The front insertion part 1137 of the panel protrudes forward from the upper panel body 1130, thereby forming a space on the rear side for the rack locking part 1714 to be inserted.

[0459] The upper panel body 1130 supports the front panel 210 at least at two positions in the left and right directions. In this embodiment, the upper panel body 1130 also provides the function of supporting the front panel 210 with the front panel insertion portion 1137.

[0460] Compared to the front panel insertion portion 1137, the front panel support portion 1135 is positioned closer to the panel outlet 1101. The front panel insertion portion 1137 can be positioned within the internal spacing I of the front panel 210.

[0461] The front panel support portion 1135 and the front panel insertion portion 1137 protrude forward from the front portion 1132 of the upper panel, and form a space between the front panel support portion 1135, the front panel insertion portion 1137 and the front portion 1132 of the upper panel. The space is located between the front portion 1132 of the upper panel and the back surface of the front panel 210.

[0462] The upper panel side 1134 can be configured to face the inner side of the front panel sides 214, 126.

[0463] The first panel side support 1138 protrudes from the upper panel side 1134 toward the front panel side and supports the inner side of the front panel side.

[0464] The second panel side support 1139 protrudes from the upper panel side 1134 toward the front panel end and supports the inner side of the front panel end.

[0465] In this embodiment, the upper panel body 1130 supports the front panel 210 through the front panel support part 1135, the front panel insertion part 1137, the first panel side support part 1138, and the second panel side support part 1139, thereby minimizing the contact area between the upper panel body 1130 and the front panel 210.

[0466] <Structural components of the vertically moving track>

[0467] The vertical moving track 1790 is configured in the track mounting space 1719d, which is surrounded by the first track mounting wall 1719a, the second track mounting wall 1719b, and the third track mounting wall 1719c.

[0468] The vertical movement track 1790 guides the vertical movement of the door cover assembly 1200. In particular, the vertical movement track 1790 is assembled on the door cover housing 1220 and guides the vertical movement of the door cover housing 1220.

[0469] The vertical moving track 1790 is disposed between the rack 1710 and the door cover housing 1220. More specifically, the vertical moving track 1790 is disposed between the track mounting part 1719 and the door cover housing 1220.

[0470] The vertical moving tracks 1790 are respectively disposed on the left and right sides of the door assembly 1200. The vertical moving tracks 1790 are located on the outer side of the door housing 1220. By disposing the vertical moving tracks 1790 on the side of the door assembly 1200, the front-to-back thickness of the door assembly 200 can be minimized.

[0471] The vertical moving track 1790 includes: a first track 1792, which is disposed on the rack 1710; and a second track 1794, which is disposed on the door cover housing 1220.

[0472] The first track 1792 is disposed in the track mounting portion 1719 and accommodated in the track mounting space 1719d. Since the first track 1792 is accommodated in the track mounting space 1719d, it does not protrude outward from the rack 1710.

[0473] The second track 1794 is assembled with the first track 1792 and moves along the first track 1792 in a vertical direction. Multiple bearings are arranged between the first track 1792 and the second track 1794 to reduce friction between them.

[0474] A portion of the second track 1794 can be inserted into the track mounting space 1719d for assembly with the first track 1792.

[0475] In this embodiment, the second track 1794 does not protrude outward from the rack tooth portion 1711 in the left-right direction. When viewed from the back, the second track 1794 is blocked by the rack tooth portion 1711.

[0476] The second track 1794 is assembled on the side of the door cover housing 1220. The first track 1792 and the second track 1794 are capable of relative movement in the vertical direction.

[0477] When the door cover assembly 1200 moves up and down, the first track 1792 and the second track 1794 guide the up and down movement of the door cover assembly 1200 and reduce friction.

[0478] <Structural Components of Gear Assemblies and Gear Drive Motors>

[0479] The door cover assembly 1200 adjusts its height by engaging the gear assembly 1730 and the rack 1710. The engagement of the gear assembly 1730 and the rack 1710 maintains the vertical height of the door cover assembly 1200.

[0480] In this embodiment, no additional structural elements are included for maintaining the height of the door cover assembly 1200.

[0481] The gear assembly 1730 not only transmits the driving force of the gear drive motor 1720 to the rack 1710, but also supports the load of the door cover assembly 1200. In this embodiment, the gear assembly 1720 provides a structure that can effectively support the load of the door cover assembly 1200.

[0482] The gear assembly 1730 includes: a first gear 1740, disposed in the door cover assembly 1200, having a first toothed portion 1741 formed on its outer peripheral surface, which meshes with the rack 1710, and can move vertically while meshing with the rack 1710; and a second gear 1750, disposed in the door cover assembly 1200, including a second-first toothed portion 1751 and a second-second toothed portion 1752 formed with different radii of curvature, which meshes with the first gear 1740. The first toothed portion 1741 of the 740 meshes with the third gear 1760, which is disposed in the door cover assembly 1200 and includes a third-1 toothed portion 1761 and a third-2 toothed portion 1762 formed with different tooth profiles. The third-1 toothed portion 1761 meshes with the second-2 toothed portion 1752 of the second gear 1750. The worm gear 1770 is disposed in the door cover assembly 1200, meshes with the third-2 toothed portion 1762, is connected to the gear drive motor 1720 for rotation, and is arranged in the vertical direction.

[0483] The motor shaft 1721 of the gear drive motor 1720 is arranged in the vertical direction.

[0484] In this embodiment, the motor shaft 1721 of the gear drive motor 1720 passes through the worm gear 1770. The center of the worm gear 1770 and the motor shaft 1721 are aligned on the same line.

[0485] The first gear 1740 meshes with the rack 1710 and the second gear 1750 respectively.

[0486] The second gear 1750 meshes with the first gear 1740 and the third gear 1760 respectively.

[0487] The third gear 1760 meshes with the second gear 1750 and the worm gear 1770 respectively.

[0488] The teeth of the first gear 1740, the second gear 1750, and the third gear 1760 are all formed as pinion gears. The shafts of the first gear 1740, the second gear 1750, and the third gear 1760 are formed along the front-rear direction.

[0489] The first toothed portion 1741 is configured as a circle when viewed from the front or the back.

[0490] The position where the first toothed portion 1741 and the rack toothed portion 1711 mesh is different from the position where the first toothed portion 1741 and the second-1st toothed portion 1751 mesh.

[0491] The first toothed portion 1741, the rack toothed portion 1711 of the rack 1710, and the second-first toothed portion 1751 are all formed with the same size and shape of toothed portion.

[0492] The first toothed portion 1741, the rack toothed portion 1711 of the rack 1710, and the second-first toothed portion 1751 are all formed with the same pinion tooth shape.

[0493] The shafts of the second gear 1750 and the third gear 1760 are formed along the front-back direction and are formed as pinions.

[0494] Similar to the first gear 1740, the second gear 1750 and the third gear 1760 are configured with two different tooth profiles, instead of having a single tooth profile.

[0495] Specifically, the second gear 1750 is equipped with a second-first tooth portion 1751 and a second-second tooth portion 1752, which are arranged along the rotation axis direction of the second gear 1750 (the front-back direction in this embodiment). The second-first tooth portion 1751 and the second-second tooth portion 1752 are arranged along the front-back direction.

[0496] In the second gear 1750, the second-1 tooth portion 1751 and the second-2 tooth portion 1752 are formed with different tooth profiles. Both the second-1 tooth portion 1751 and the second-2 tooth portion 1752 are formed with pinion tooth profiles.

[0497] When viewed from the front, the 2-1 toothed portion 1751 and the 2-2 toothed portion 1752 are respectively configured as circles with different diameters.

[0498] One of the second-1 toothed portion 1751 and the second-2 toothed portion 1752 may be disposed on the front side, and the other may be disposed on the rear side. In this embodiment, the second-1 toothed portion 1751 is located further rearward than the second-2 toothed portion 1752. The second-1 toothed portion 1751 is located on the same plane as the first toothed portion 1741 and the third-2 toothed portion 1762.

[0499] Furthermore, since the second gear 1750 maintains simultaneous engagement with the first gear 1740 and the third gear 1760, the same tooth profile as the second gear 1750 is also configured on the first gear 1740 and the third gear 1760. Therefore, the second-2 tooth profile 1352, the first tooth profile 1341, and the third-1 tooth profile 1361 have the same specifications.

[0500] In this embodiment, the diameter of the second-2 tooth portion 1752 of the second gear 1750 is larger than the diameter of the second-1 tooth portion 1751. By configuring the diameters of the second-1 tooth portion 1751 and the second-2 tooth portion 1752 differently, a meshing structure that simultaneously meshes with the first gear 1740 and the third gear 1760 is provided.

[0501] When the first gear 1740 and the second gear 1750 are engaged, the first gear 1740 is located further rearward than the second-2 tooth portion 1752. This is because the second-1 tooth portion 1751 is located further rearward than the second-2 tooth portion 1752.

[0502] Unlike this embodiment, the front-to-back arrangement of the second-1 toothed portion 1751 and the second-2 toothed portion 1752 can also be reversed.

[0503] In the second gear 1750, the second-1 tooth portion 1751 and the second-2 tooth portion 1752 are formed with different tooth profiles. Both the second-1 tooth portion 1751 and the second-2 tooth portion 1752 are pinion-shaped tooth profiles.

[0504] The third gear 1760 includes a third-first tooth portion 1761 and a third-second tooth portion 1762. One of the third-first tooth portion 1761 and the third-second tooth portion 1762 meshes with the worm gear 1770.

[0505] In this embodiment, the diameters of the 3-1 tooth portion 1761 and the 3-2 tooth portion 1762 are formed differently. The diameter of the 3-2 tooth portion 1762, which meshes with the worm gear 1770, can be formed to be larger than that of the 3-1 tooth portion 1761.

[0506] Since the third-2nd tooth portion 1762 meshes with the worm gear tooth portion 1771, if the diameter of the third-2nd tooth portion 1762 is formed to be smaller than that of the third-1st tooth portion 1761, the worm gear tooth portion 1771 and the third-1st tooth portion 1761 may interfere with each other. The third-2nd tooth portion 1762 and the worm gear tooth portion 1771 mesh in a worm gear manner, which minimizes operating noise.

[0507] In this embodiment, the diameter of the third-2nd toothed portion 1762 is larger than that of the third-1st toothed portion 1761.

[0508] To minimize interference with the worm gear 1770, the third-2 tooth 1762 is located further rearward than the third-1 tooth 1761.

[0509] The shaft of the third gear 1760 is arranged in the front-to-back direction.

[0510] The 3-1 toothed portion 1761 and the 3-2 toothed portion 1762 are arranged in the front-to-back direction. The 3-1 toothed portion 1761 is located further forward than the 3-2 toothed portion 1762.

[0511] The 3-1 toothed portion 1761 and the 2-2 toothed portion 1752 are located on the same plane.

[0512] In this embodiment, since the third-2nd toothed portion 1762 meshes with the worm gear 1770, the tooth profile of the third-2nd toothed portion 1762 is formed as the tooth profile of the worm gear.

[0513] Since the third-1 toothed portion 1761 meshes with the second-2 toothed portion 1752, the third-1 toothed portion 1761 is formed into a pinion tooth shape.

[0514] The worm gear 1770 is cylindrical in shape, with its axis of rotation positioned vertically. The worm gear 1770 has worm gear teeth 1771 formed on its outer circumferential surface, which are helical in the vertical direction.

[0515] Since the shaft of the worm gear 1770 is arranged along the vertical direction, the tooth profile 1771 of the worm gear is able to support external forces in the vertical direction.

[0516] In a configuration where the shaft of the worm gear 1770 is arranged obliquely or horizontally, the worm gear 1770 may rotate when an external force in the vertical direction is applied.

[0517] In this embodiment, since the worm gear 1770's shaft is arranged along the vertical direction, it can support the vertical external force applied to the third gear 1760. With this arrangement of the worm gear 1770, no additional stop or similar components are needed, and the door cover assembly 1200 can be prevented from moving downwards due to its own weight.

[0518] In this embodiment, the weight of the door cover assembly 1200 can 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.

[0519] The worm gear 1770 is directly connected to the motor shaft 1721 of the gear drive motor 1720. The motor shaft 1721 of the gear drive motor 1720 passes through the rotation center of the worm gear 1770 in the vertical direction.

[0520] In this embodiment, the gear drive motor 1720 is a stepper motor, which can rotate the worm gear 1770 by applying an external force to the third gear 1760.

[0521] The gear housing 1780 is equipped with a first gear 1740, a second gear 1750, a third gear 1760, a worm gear 1770, and a gear drive motor 1720.

[0522] The gear housing 1780 provides shafts for a first gear 1740, a second gear 1750, and a third gear 1760. The first gear 1740, the second gear 1750, and the third gear 1760 are assembled on the protrusions 1742 formed in the gear housing 1780.

[0523] In this embodiment, the gear housing 1780 includes a first gear housing 1781 and a second gear housing 1782.

[0524] A first gear 1740, a second gear 1750, a third gear 1760, a worm gear 1770, and a gear drive motor 1720 are arranged between the first gear housing 1781 and the second gear housing 1782.

[0525] From one of the first gear housing 1781 and the second gear housing 1782, there are protrusions 1742 that provide the shafts for the first gear 1740, the second gear 1750, and the third gear 1760. The protrusions 1742 protrude rearward from the first gear housing 1781.

[0526] In this embodiment, the first gear housing 1781 is located further forward than the second gear housing 1782. The first gear housing 1781 is assembled on the back of the door cover housing 1220.

[0527] Of the gears in the gear assembly 1730, only the first gear 1740 protrudes outward from the gear housing 1780. The first gear 1740 extends through the side of the gear housing 1780, and a portion of the first gear 1740 protrudes outward. To allow the first gear 1740 to protrude outward, a portion of the side of the gear housing 1780 is open.

[0528] The first tooth portion 1741 of the first gear 1740, which protrudes outward from the gear housing 1780, meshes with the rack tooth portion 1711 of the rack 1710. Since the first tooth portion 1741 and the rack tooth portion 1711 are formed along the front-back direction, they maintain a meshing state with each other in the vertical direction.

[0529] A vertical moving track 1790 is arranged in front of the first toothed portion 1741 and the rack toothed portion 1711. The vertical moving track 1790 is located in the plane on which the second gear 1750 is arranged in the front-back direction.

[0530] <Structural Components of Cable Guides>

[0531] As the door housing moving module 1700 moves in the vertical direction, the cable connected to the door housing moving module 1700 also inevitably moves in the vertical direction.

[0532] Because the thickness of the door assembly 200 in the front-to-back direction is very small compared to its width, the cables may become tangled when the door housing moving module 1700 moves up and down.

[0533] Furthermore, the cable may get caught between the door housing moving module 1700 and the panel module 1100, which move up and down, thereby restricting the operation of the door housing moving module 1700. A cable guide 1800 may be configured to minimize the problems described above.

[0534] 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.

[0535] The cable guide 1800 includes: a first cable guide 1810, which is rotatably assembled on the door cover assembly 1200; a second cable guide 1820, which is rotatably assembled on the panel module 1100; and a connecting cable guide 1830, which is rotatably assembled on the first cable guide 1810 and the second cable guide 1820 respectively.

[0536] The first cable guide 1810 includes: a cable guide body 1815; a cable insertion space 1813 disposed inside the cable guide body 1815, into which a cable is inserted; a first-1 rotating part 1811 disposed on one side of the cable guide body 1815 and assembled with the door cover assembly 1200 (a door cover housing in this embodiment) in a rotatable manner; and a first-2 rotating part 1812 disposed on the other side of the cable guide body 1815 and assembled with the connecting cable guide 1830 in a rotatable manner.

[0537] The cable guide body 1815 is formed with a length greater than its width. A cross-section orthogonal to the length direction of the cable guide body 1815 is formed in a "∪" shape, and the cable insertion space 1813 is formed on its inner side. The cable insertion space 1813 of the first cable guide 1810 opens upwards.

[0538] The first-1 rotating part 1811 protrudes upward from the upper end of the cable guide body 1815. The first-1 rotating part 1811 is hinged to the door cover housing 1220 and can rotate relative to the door cover housing 1220.

[0539] When the door cover housing 1220 moves to the upper or lower side, the first cable guide 1810 rotates relative to the first rotating part 1811.

[0540] The first-second rotating part 1812 has the same structure as the first-first rotating part 1811. The first-second rotating part 1812 protrudes downward from the lower end of the cable guide body 1815. The first-second rotating part 1812 is hinged to the upper side of the connecting cable guide 1830 and can rotate relative to the connecting cable guide 1830.

[0541] The second cable guide 1820 includes: a cable guide body 1825; a cable insertion space 1823 disposed inside the cable guide body 1825, into which a cable is inserted; a second-first rotating part 1821 disposed on one side of the cable guide body 1825 and assembled with the connecting cable guide 1830 in a rotatable manner; and a second-second rotating part 1822 disposed on the other side of the cable guide body 1825 and assembled with the panel module 1100 (the upper panel module in this embodiment) in a rotatable manner.

[0542] Since the second cable guide 1820 has similar structural elements to the first cable guide 1810, detailed descriptions will be provided in the accompanying drawings.

[0543] The connecting cable guide 1830 includes: a cable guide body 1835; a cable insertion space 1833 disposed inside the cable guide body 1835, into which a cable is inserted; a third-first rotating part 1831 disposed on one side of the cable guide body 1835 and assembled with the first cable guide 1810 in a rotatable manner; and a second-second rotating part 1832 disposed on the other side of the cable guide body 1835 and assembled with the second cable guide 1820 in a rotatable manner.

[0544] Since the connecting cable guide 1830 has structural elements similar to the first cable guide 1810, detailed descriptions will be provided in the accompanying drawings. A first pin 1841 is provided to assemble the first-1 rotating part 1811 and the door cover housing 1220 in a rotatable manner. A second pin 1842 is provided to assemble the first-2 rotating part 1812 and the second-1 rotating part 1821 in a rotatable manner. A third pin 1843 is provided to assemble the second-2 rotating part 1822 and the third-1 rotating part 1831 in a rotatable manner. A fourth pin 1844 is provided to assemble the third-2 rotating part 1832 and the upper panel module 1110 in a rotatable manner.

[0545] The first cable guide 1810 and the connecting cable guide 1830 form an angle within 180 degrees. When the door cover assembly 1200 is lowered, the angle between the first cable guide 1810 and the connecting cable guide 1830 becomes smaller.

[0546] The second cable guide 1820 and the connecting cable guide 1830 form an angle within 180 degrees. When the door cover assembly 1200 is lowered, the angle between the second cable guide 1820 and the connecting cable guide 1830 becomes smaller.

[0547] Since the second-2 rotating part 1822 is provided on the upper panel module 1110, its position is fixed and does not move.

[0548] When the door cover assembly 1200 descends, the positions of the first-1 rotating part 1811, the first-2 rotating part 1812, the third-1 rotating part 1831, the third-2 rotating part 1832, and the second-1 rotating part 1821 can move along the vertical direction.

[0549] The cable is connected to the door cover motor 1610 of the door cover assembly 1200 and the gear drive motor 1720 of the door housing moving module 1700. The cable can provide power and control signals to the door cover motor 1610 or the gear drive motor 1720 respectively.

[0550] <<Structural Components of a Door Sliding Module>>

[0551] The door sliding module 1300 is used to move the door assembly 200 along the left and right directions of the housing assembly 100. The door sliding module 1300 enables the door assembly 200 to reciprocate along the left and right directions.

[0552] The door sliding module 1300 is disposed on one of the door assembly 200 or the housing assembly 100, and achieves sliding movement with the other through mutual interference.

[0553] The door sliding module 1300 includes: a rack 1310 disposed on the door assembly 200 and extending relatively long in the left-right direction; a gear assembly 1330 disposed on the side of the housing assembly 100, meshing with the rack 1310 and moving along the rack 1310 during rotation; a gear drive motor 1320 disposed on the side of the housing assembly 100, providing driving force to the gear assembly 1330; and a gear housing 1380 disposed on the side of the housing assembly 100, wherein the gear assembly 1330 and the gear drive motor 1320 are disposed in the gear housing 1380.

[0554] <<Side Movement Component>>

[0555] In addition, the indoor unit of this embodiment may also be equipped with a side-moving component 1400, which guides the left and right sliding of the door component 200 and supports the load of the door component 200.

[0556] The side-moving component 1400 is disposed on the door component 200 and the housing component 100, and guides the left and right movement of the door component 200.

[0557] When the door sliding module 1300 is in operation, the lateral movement component 1400 guides the sliding movement of the door assembly 200. Although the sliding movement of the door assembly 200 can be achieved solely by utilizing the operation of the rack 1310 and gear assembly 1330 of the door sliding module 1300, there are limitations in achieving natural sliding movement.

[0558] In this embodiment, the side-moving components 1400 are respectively disposed on the upper side, middle side and lower side of the door component 200.

[0559] The side-moving assembly 1400 includes: a top track 1410 disposed on the upper side of the door assembly 200; a middle track 1420 disposed in the middle of the door assembly 200; a bottom track 1430 disposed on the lower side of the door assembly 200; a top support 1440 assembled on the door assembly 200, disposed on the upper side of the door assembly 200, and resting on the upper side of the housing assembly 100; and a bottom support 1450 assembled on the housing assembly 100, disposed on the lower side of the housing assembly 100, with the lower end of the door assembly 200 resting on the bottom support 1450.

[0560] The top track 1410, the middle track 1420, and the bottom track 1430 are all arranged along the left-right direction. The top track 1410, the middle track 1420, and the bottom track 1430 are arranged between the door assembly 200 and the box assembly 100.

[0561] The top track 1410 includes a first top track 1412 and a second top track 1414.

[0562] The first top track 1412 is disposed on the back of the door assembly 200. The first top track 1412 is disposed along the left-right direction. The first top track 1412 may be disposed on the back of the top panel module 1110 in the door assembly 200.

[0563] The second top track 1414 is assembled on the front surface of the housing assembly 100 and can move relative to the first top track 1412 in the left-right direction.

[0564] In this embodiment, the second top track 1414 is combined with the top support 1440, which is fixed to the housing assembly 100.

[0565] The first top track 1412 and the second top track 1414 are assembled in a manner that allows them to move relative to each other. A bearing 1415 may be arranged between the first top track 1412 and the second top track 1414, which can reduce friction during the relative movement of the first top track 1412 and the second top track 1414.

[0566] The intermediate track 1420 includes a first intermediate track 1422 and a second intermediate track 1424.

[0567] The first intermediate track 1422 is disposed on the back of the door assembly 200. The first intermediate track 1422 is disposed along the left-right direction. The first intermediate track 1422 may be disposed on the back of the bottom panel module 1120 in the door assembly 200.

[0568] The second intermediate track 1424 is assembled on the front surface of the housing assembly 100 and can move relative to the first intermediate track 1422 in the left-right direction.

[0569] The first intermediate track 1422 and the second intermediate track 1424 are assembled in a manner that allows them to move relative to each other. A bearing (not shown) may be arranged between the first intermediate track 1422 and the second intermediate track 1424, which can reduce friction during the relative movement of the first intermediate track 1422 and the second intermediate track 1424.

[0570] The bottom track 1430 includes a first bottom track 1432 and a second bottom track 1434.

[0571] The first bottom track 1432 is disposed on the back of the door assembly 200. The first bottom track 1432 is disposed along the left-right direction. The first bottom track 1432 can be disposed on the back of the bottom panel module 1120 in the door assembly 200.

[0572] The second bottom track 1434 is assembled on a structure (in this embodiment, a bottom support) disposed on the front surface of the housing assembly 100, and can move relative to the first bottom track 1432 in the left-right direction.

[0573] The first bottom track 1432 and the second bottom track 1434 are assembled in a manner that allows them to move relative to each other. A bearing (not shown) may be arranged between the first bottom track 1432 and the second bottom track 1434, which can reduce friction during the relative movement of the first bottom track 1432 and the second bottom track 1434.

[0574] When the door assembly 200 is moved in the left and right direction using the door sliding module 1300, the top support 1440 and the bottom support 1450 remain in their original positions to support the load of the door assembly 200.

[0575] The top support 1440 distributes the load of the door assembly 200 to the upper side of the housing. The bottom support 1450 supports the lower side of the door assembly 200 and reduces friction when the door assembly 200 slides left and right.

[0576] The top support 1440 includes: a top fixing part 1442, a structure assembled on the side of the door assembly 200 (in this embodiment, it is the second top track 1414); a top part 1444, which protrudes from the top fixing part 1442 toward the box assembly 100 and is mounted on the box assembly 100; and a top locking part 1446, which is disposed on the top part 1444 and locks against the box assembly 100 in the front-back direction.

[0577] The top fixing part 1442 extends relatively long along the left-right direction of the door assembly 200. The top fixing part 1442 can be assembled tightly against the door assembly 200. In this embodiment, the top fixing part 1442 is assembled on a structure on the side of the door assembly 200, and in this embodiment, the top fixing part 1442 is fastened to the second top track 1414.

[0578] The top fixing part 1442 is arranged behind the second top track 1414.

[0579] The top layer 1444 and the top fixing part 1442 are integrally manufactured. The top fixing part 1442 and the top layer 1444 can be manufactured by bending a single plate.

[0580] The top layer 1444 protrudes rearward from the top fixing part 1442.

[0581] In this embodiment, the top layer 1444 protrudes rearward from the upper edge of the top fixing portion 1442.

[0582] The top layer 1444 can be fixed to the upper side of the housing assembly 100.

[0583] When the door assembly 200 moves left and right, the top part 1444 and the second top track 1414 remain in their original positions, while only the first top track 1412 and the door assembly 200 move relative to each other in the left and right directions.

[0584] The top locking portion 1446 is formed along the left-right direction and forms a locking mechanism along the front-back direction of the housing assembly 100.

[0585] The top stop portion 1446 protrudes downward from the top layer portion 1444.

[0586] In this embodiment, the top locking portion 1446 is shaped as a groove recessed downwards and extends relatively long along the length direction of the top layer portion 1444. The top locking portion 1446 is formed with a locking groove 1446a that opens upwards, and the locking groove 1446a extends relatively long in the left-right direction.

[0587] The top layer 1444 includes: a first top layer 1444a, which is located on the front side of the top locking part 1446; and a second top layer 1444b, which is located on the rear side of the top locking part 1446.

[0588] The top locking portion 1446 is arranged between the first top layer portion 1444a and the second top layer portion 1444b.

[0589] A top support mounting portion (not shown) is disposed on the upper side of the housing assembly 100. The top locking portion 1446 is inserted into the top support mounting portion, and the top support mounting portion and the top locking portion 1446 lock each other in place.

[0590] Figure 31 yes Figure 12 The image shows a partial cutaway perspective view of the long-range fan assembly. Figure 32 yes Figure 31 The front view of the long-distance fan assembly is shown. Figure 33 yes Figure 32 The right-side view. Figure 34 yes Figure 31 An exploded 3D diagram. Figure 35 From Figure 34 An exploded stereoscopic view viewed from the rear side. Figure 36 yes Figure 34 The exploded perspective view of the fan housing assembly shown. Figure 37 yes Figure 36 The diagram shows a perspective view of the front fan housing. Figure 38 yes Figure 37 The main view.

[0591] Figure 39 yes Figure 38 Rear view. Figure 40 yes Figure 34 The diagram shows a 3D view of the guide rail. Figure 41 yes Figure 34 The image shows a cross-sectional view of the air guide before it is in operation.

[0592] <<Structural Components of a Long-Distance Fan Assembly>>

[0593] The long-range fan assembly 400 is movable in the front-to-back direction relative to the housing assembly 100. The long-range fan assembly 400 exhausts air towards the front of the door assembly 200 and provides direct airflow into the room.

[0594] The long-distance fan assembly 400 only penetrates the front outlet 201 of the door assembly 200 when in operation, and protrudes forward further than the front surface 200a of the door assembly 200 to form a protruding state.

[0595] The long-range fan assembly 400 is disposed inside the housing assembly 100 and moves in the front-to-back direction only inside the housing assembly 100 during operation.

[0596] The long-range fan assembly 400 is positioned in front of the heat exchange assembly 500 and behind the door assembly 200. The long-range fan assembly 400 is positioned above the short-range fan assembly 300 and is located further downward than the upper sidewall of the housing assembly 100.

[0597] The remote fan assembly 400 expels air through the front exhaust port 201 formed on the door assembly 200, and the steering grille 3450 of the remote fan assembly 400 is located further forward than the front exhaust port 201.

[0598] By positioning the steering grille 3450 outside the front exhaust outlet 201, air resistance caused by structures such as the housing assembly 100 or door assembly 200 can be minimized.

[0599] The long-range fan assembly 400 is provided with a structure that can tilt upwards, downwards, leftwards, rightwards, or diagonally. The long-range fan assembly 400 exhausts air to the far side of the indoor space and can improve indoor air circulation.

[0600] The long-range fan assembly 400 includes: a guide housing (in this embodiment, the upper guide housing and the lower guide housing are described later), disposed inside the housing assembly; a fan housing assembly 3400, movably assembled in the guide housing, and discharging air from the internal space S to the front exhaust port; and an actuator 3470, disposed in one of the housing assembly 100 or the guide housing, and causing the fan housing assembly to move along the guide housing.

[0601] The guide housing includes: an upper guide housing 3520, disposed in front of the heat exchange assembly 500, having a guide housing intake 3521 through which air flows in from the heat exchange assembly 500; and a lower guide housing 3460, assembled with the upper guide housing 3520, having the front fan housing 3430 disposed on its upper side, and guiding the front fan housing 3430 to move in the front-rear direction.

[0602] The fan housing assembly 3400 includes: a rear fan housing 3410, having a fan intake 3411 communicating with the guide housing intake 3521, disposed inside the upper guide housing 3520; a fan 3420, disposed in front of the rear fan housing 3410, which discharges air drawn in from the fan intake 3411 along an oblique flow direction; a front fan housing 3430, disposed in front of the rear fan housing 3410 and combined with the rear fan housing 3410, disposed in front of the fan 3420, the fan 3420 being assembled in the front fan housing 3430, which guides the air pressurized by the fan 3420 along an oblique flow direction; and a fan motor 3440, equipped with... A motor shaft 3441 is positioned in front of the front fan housing 3430, passing through the front fan housing 3430 and assembled with the fan 3420, thereby enabling the fan 3420 to rotate. A steering grille 3450 is located in front of the front fan housing 3430 and the fan motor 3440, and can be tilted in any direction relative to the front fan housing 3430 to control the direction of airflow guided through the front fan housing 3430. A steering assembly 1000 is disposed between the front fan housing 3430 and the steering grille 3450, and can cause the steering grille 3450 to steer around its central axis C1 by pushing or pulling the steering grille 3450.

[0603] The rear fan housing 3410 and the front fan housing 3430 are defined as fan housings.

[0604] The actuator 3470 is disposed on one of the front fan housing 3430 or the lower guide housing 3460 and provides driving force when the front fan housing 3430 moves in the front-rear direction.

[0605] The long-range fan assembly 400 further includes an air guide 3510, which has an opening in the front-rear direction, connects the rear fan housing 3410 and the upper guide housing 3520, guides the air drawn in from the guide housing intake port 3521 to the fan intake port 3411, is formed of an elastic material, and expands or contracts when the front fan housing 3430 moves in the front-rear direction.

[0606] For ease of explanation, the assembly in the long-distance fan assembly 400 that moves along the front-to-back direction using the actuator 3470 is defined as the fan housing assembly 3400. The fan housing assembly 3400 includes a rear fan housing 3410, a front fan housing 3430, a fan 3420, a steering grille 3450, a fan motor 3440, and a steering assembly 1000.

[0607] The fan housing assembly 3400 can be moved in the front-rear direction using an actuator 3470. To facilitate the smooth sliding movement of the front fan housing 3430, a first guide rail 3480 and a second guide rail 3490 may be arranged between the front fan housing 3430 and the lower guide housing 3460.

[0608] The lower guide housing 3460 and the upper guide housing 3520 are fixed structures that can be fixed to one of the housing assembly 100 or the proximity fan assembly 300.

[0609] Air passing through the heat exchange assembly 500 is discharged from the steering grille 3450 after passing through the guide housing intake 3521, the fan intake 3411, the fan 3420, and the front fan housing 3430.

[0610] The upper guide housing 3520 and the lower guide housing 3460 can be manufactured as a single piece. The integrally manufactured upper guide housing 3520 and lower guide housing 3460 can be defined as guide housings.

[0611] The guide housing has an opening on its front surface for the fan housing assembly 3400 to move in the front-back direction, and a guide housing intake port 3521 is provided on its rear surface for air intake.

[0612] In this embodiment, in order to realize the structure that allows the fan housing assembly 3400 to move in the front-back direction, it is made into an upper guide housing 3520 and a lower guide housing 3460 and then assembled.

[0613] <Structural Components of a Fan>

[0614] The fan 3420 includes: a bushing 312, in which a motor shaft 3441 is joined at its center; a shroud 314, which is spaced apart from the bushing 312 and has an intake port 311 for air intake formed in its center; and a plurality of blades 316 disposed between the bushing 312 and the shroud 314.

[0615] Multiple blades 316 are disposed between the bushing 312 and the shroud 314. The leading edge of the blade 316 is coupled to the rear surface of the bushing 312, and the trailing edge is coupled to the leading edge of the shroud 314. The multiple blades 316 are arranged circumferentially spaced from each other. The cross-section of the blade 316 is preferably an airfoil shape.

[0616] In blade 316, the side end from which air flows in is called the leading edge 316a, and the side end from which air flows out is called the trailing edge 316b.

[0617] In blade 316, the trailing edge 316b is formed at an angle to the front and rear directions so that the expelled air is obliquely expelled in the radial direction. In blade 316, the leading edge 316a may be formed shorter than the trailing edge 316b so that the expelled air is obliquely expelled in the front and rear directions.

[0618] The bushing 312 is formed into a conical shape that bulges downwards towards the center. At least a portion of the fan motor 3440 is disposed inside the bushing 312, inserted behind the inner fan housing 3434 at the front of the bushing 312. This structure minimizes the front-to-back thickness occupied by the fan motor 3440 and the fan 3420.

[0619] A motor shaft 3441 of a fan motor 3440, disposed on the upper side of the bushing 312, is coupled to the center of the bushing 312. The bushing 312 is located in front of the cover 314, and the bushing 312 and the cover 314 are separated. A plurality of blades 316 are coupled to the back of the bushing 312.

[0620] When viewed from above, the motor shaft 3441 is preferably positioned at the left-right center of the housing assembly 100. When viewed from above, the motor shaft 3441 may also be positioned on a central axis C1 that runs through the center of the front outlet in the front-rear direction.

[0621] The bushing 312 is formed such that its outer peripheral end is inclined in the opposite direction to that of the intake port 311. The outer peripheral end of the bushing 312 refers to the front peripheral edge of the bushing 312. The direction X facing the outer peripheral end of the bushing 312 is preferably about 45 degrees from the left and right direction. In order to expel air at a forward tilt, the outer peripheral end of the bushing 312 is formed to be inclined forward.

[0622] The bushing 312 is formed in a straight line Ah shape with its planar cross-section inclined from the central portion to the outer peripheral end of the bushing 312 in the direction opposite to that of the inlet 311. Preferably, the bushing 312 is formed in a straight line Ah shape with its longitudinal cross-section inclined from the portion where the leading edges 316a of the plurality of blades 316 are connected to the outer peripheral end. The bushing 312 is formed in a diameter that increases constantly from the central portion to the outer peripheral end. Preferably, the bushing 312 is formed in a diameter that increases constantly from the portion where the leading edges 316a of the plurality of blades 316 are connected to the outer peripheral end.

[0623] The shield 314 is shaped like a bowl and has a circular air intake 311 in the center for air intake. The air intake 311 of the shield 314 is positioned facing the air intake 101 of the housing assembly 100.

[0624] That is, the fan intake 3411 of the fan housing assembly 3400 is formed in the portion corresponding to the intake 311 of the shroud 314. The diameter of the intake 311 is preferably larger than the diameter of the fan intake 3411 of the fan housing assembly 3400. The shroud 314 is formed with an intake guide 314a that protrudes vertically from the periphery of the intake 311 toward the rear.

[0625] The shroud 314 is arranged at a distance from the rear side of the bushing 312. A plurality of blades 316 are incorporated on the front surface of the shroud 314.

[0626] The shield 314 is formed such that its outer peripheral end is inclined in the opposite direction to that of the intake port 311. The outer peripheral end of the shield 314 refers to the front periphery of the shield 314. The direction Sh of the outer peripheral end of the shield 314 is preferably about 45 degrees from the horizontal direction. In order to expel air at an angle forward, the outer peripheral end of the shield 314 is formed to be inclined forward. The direction of the outer peripheral end of the shield 314 is preferably substantially parallel to the direction of the outer peripheral end of the bushing 312.

[0627] The shield 314 is formed in a straight line Ch shape, with its longitudinal section inclined from the upper end of the suction guide 314a to the outer peripheral end of the shield 314 in a direction opposite to that of the suction port 311. Preferably, the shield 314 is formed in a straight line Ch shape, with its longitudinal section inclined from the portion where the leading edges 24b-1 of the plurality of blades 316 are connected to the outer peripheral end. The shield 314 is formed in a diameter that increases consistently from the upper end of the suction guide 314a to the outer peripheral end. Preferably, the shield 314 is formed in a diameter that increases consistently from the portion where the leading edges 24b-1 of the plurality of blades 316 are connected to the outer peripheral end.

[0628] The direction Sh of the outer peripheral end of the cover 314 is preferably substantially parallel to the direction X of the outer peripheral end of the bushing 312. The inclined straight line Ch portion of the longitudinal section of the cover 314 and the inclined straight line Ah portion of the longitudinal section of the bushing 312 are preferably substantially parallel.

[0629] In this embodiment, the gap between the protective cover 314 and the bushing 312 is formed to become wider towards the outer periphery.

[0630] <Structural components of the upper guide housing>

[0631] The upper guide housing 3520 constitutes the upper part of the guide housing. The upper guide housing 3520 is a structural element for surrounding the fan housing assembly 3400. The upper guide housing 3520 is a structural element for guiding air passing through the heat exchange assembly 500 to the fan housing assembly 3400.

[0632] The upper guide housing 3520 cuts off the air flowing through the heat exchange assembly 500 to the steering grille 3450 through a flow path other than the guide housing intake 3521.

[0633] The guide housing intake 3521 provides a single flow path for guiding the cooled air toward the steering grille 3450, thereby minimizing the contact of the cooled air with the door assembly 200.

[0634] The upper guide housing 3520 is preferably formed to cover the area of ​​the front surface of the heat exchange assembly 500. In this embodiment, due to the presence of the proximity fan assembly 300, the upper guide housing 3520 is formed to cover the remaining upper area not covered by the proximity fan assembly 300.

[0635] The upper guide housing 3520 is assembled to the lower guide housing 3460 and disposed on the upper side of the lower guide housing 3460. The upper guide housing 3520 and the lower guide housing 3460 are integrated by fastening.

[0636] The fan housing assembly is arranged inside the upper guide housing 3520 and the lower guide housing 3460, and the fan housing assembly is configured to be movable in the front-back direction with respect to the upper guide housing 3520 and the lower guide housing 3460.

[0637] The upper guide housing 3520 is generally shaped as a cuboid with openings on its front and rear surfaces.

[0638] The upper guide housing 3520 includes: a rear wall 3522, which forms a guide housing intake port 3521; a left wall 3523 and a right wall 3524, which protrude forward from the side edge of the rear wall 3522; and a top wall 3525, which protrudes forward from the upper side edge of the rear wall 3522.

[0639] The guide housing intake 3521 extends through the rear wall 3522 along the front-to-back direction. The guide housing intake 3521 is circular when viewed from the front. The guide housing intake 3521 is larger than the fan intake 3411. The fan intake 3411 is also circular when viewed from the front. The diameter of the fan intake 3411 is larger than the diameter of the guide housing intake 3521.

[0640] The left wall 3523 is located on the left side when viewed from the front, and the right wall 3524 is located on the right side. The left wall 3523 and the right wall 3524 are arranged facing each other.

[0641] The top wall 3525 connects the rear wall 32522, the left wall 3523, and the right wall 3524. The fan housing assembly is arranged on the lower side of the top wall 3525.

[0642] When not in operation, a fan housing assembly is arranged between the left wall 3523, the right wall 3524, and the top wall 3525. When in operation, the fan housing assembly moves forward.

[0643] When the fan housing assembly is in its maximum forward movement, the rear fan housing 3410 is preferably located inside the upper guide housing 3520. In this embodiment, when the fan housing assembly is in its maximum forward movement, the rear end 3410b of the rear fan housing 3410 is located further rearward than the front ends 3523a and 3524a of the left wall 3523 and right wall 3524.

[0644] During operation, if the fan housing assembly deviates from the upper guide housing 3520, it may become stuck with the upper guide housing 3520 when subjected to an external impact during its return to the initial position, and thus may be unable to return to the initial position.

[0645] Furthermore, if the fan housing assembly deviates from the upper guide housing 3520, the airflow distance from the guide housing intake 3521 to the fan intake 3411 may increase.

[0646] A fixing portion 3526 for securing the air guide 3510 is formed on the rear wall 3522. The fixing portion 3526 protrudes forward from the front surface of the rear wall 3522. Multiple fixing portions 3526 are provided, each located outside the guide housing intake 3521. In this embodiment, the fixing portions 3526 are arranged in four positions.

[0647] In this embodiment, the bottom surface 3527 of the upper guide housing 3520 is open. Unlike this embodiment, the bottom surface 3527 can also be made in a closed form.

[0648] In this embodiment, since the lower guide housing 3460 is arranged below the upper guide housing 3520 and the lower guide housing 3460 closes the bottom surface 3527, it is acceptable to make the bottom surface 3527 open.

[0649] The rear wall 3522 is formed to be wider than the left and right width of the heat exchange assembly 500, and preferably allows air passing through the heat exchange assembly 500 to flow only into the guide housing intake 3521.

[0650] When the width of the rear wall 3522 is narrower than the width of the heat exchange assembly 500, air passing through the heat exchange assembly 500 can flow towards the door assembly 200 from the outside of the remote fan assembly 400. In this configuration, cold air may cool the door assembly 200 and cause condensation during cooling.

[0651] The rear wall 3522 and the front surface of the heat exchange assembly 500 are positioned opposite each other, and preferably the rear wall 3522 is placed in maximum contact with the front surface of the heat exchange assembly 500. Placing the rear wall 3522 in close contact with the front surface of the heat exchange assembly 500 facilitates the flow of the heat-exchanged air toward the guide housing intake 3521.

[0652] The front-to-back lengths of the left wall 3523, right wall 3524, and top wall 3525 are defined as F1.

[0653] At least one of the left wall 3523 or the right wall 3524 is provided with a guide groove 3550. The guide groove 3550 is formed along the front-back direction.

[0654] The guide groove 3550 supports the fan housing assembly 3400 and guides the back-and-forth movement of the fan housing assembly 3400.

[0655] The guide groove 3550 formed on the left wall 3523 is defined as the first guide groove 3551, and the guide groove 3550 formed on the right wall 3524 is defined as the second guide groove 3552.

[0656] The first guide groove 3551 is recessed from the storage space S1 toward the left wall 3523. The second guide groove 3552 is recessed from the storage space S1 toward the right wall 3524.

[0657] The first guide groove 3551 is formed on the inner side of the left wall 3523, extends relatively long in the front-back direction, and opens toward the internal space S1. The second guide groove 3552 is formed on the inner side of the right wall 3524, extends relatively long in the front-back direction, and opens toward the internal space S1.

[0658] The first guide groove 3551 includes a bottom surface 3551a, a side surface 3551b, and a top surface 3551c, and the second guide groove 3552 includes a bottom surface 3552a, a side surface 3552b, and a top surface 3552c.

[0659] 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.

[0660] The first guide roller 3553 and the second guide roller 3554 of the fan housing assembly 3400, described later, move along the first guide groove 3551 and the second guide groove 3552 in the front-back direction.

[0661] The first guide groove 3551 and the second guide groove 3552 provide movement 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.

[0662] <Structural components of the lower guide housing>

[0663] The lower guide housing 3460 constitutes the lower part of the guide housing. The lower guide housing 3460 movably positions the fan housing assembly 3400 and guides the forward and backward movement of the fan housing assembly 3400.

[0664] There are no particular restrictions on the shape of the lower guide housing 3460, as long as it is a shape that can accommodate the fan housing assembly 3400 and guide its movement in the front-back direction.

[0665] The lower guide housing 3460 is assembled with the upper guide housing 3520, forming a storage space S1 inside for accommodating the fan housing assembly 3400. In this embodiment, only the rear side of the fan housing assembly 3400 is accommodated, while its front side can protrude outwards from the storage space S1. Unlike this embodiment, the storage space S1 can be a sufficiently large space capable of accommodating the entire fan housing assembly 3400.

[0666] In this embodiment, the lower guide housing 3460 is disposed on the upper part of the fan housing 320.

[0667] The lower guide housing 3460 is longer in the longitudinal direction than the upper guide housing 3520. This is because the lower guide housing 3460 supports the fan housing assembly 3400 and guides its longitudinal movement. The longitudinal length of the lower guide housing 3460 is defined as F2. The longitudinal length F2 of the lower guide housing 3460 is longer than the longitudinal length F1 of the upper guide housing 3520.

[0668] The lower guide housing 3460 encloses the bottom surface of the upper guide housing 3520, and the fan housing assembly 3400 is movably placed on its upper side. When placed in the lower guide housing 3460, the fan housing assembly 3400 can be moved in the front-back direction using an actuator 3470.

[0669] The lower guide housing 3460 includes: a housing base 3462 disposed at the lower part of the fan housing assembly 3400; a left side wall 3463 and a right side wall 3464 extending upward from the two side edges of the housing base 3462; a stop member 3465 disposed on at least one of the housing base 3462, the left side wall 3463 and the right side wall 3464 for restricting the forward movement of the fan housing assembly 3400; a base guide member 3467 disposed on the housing base 3462, interfering with the fan housing assembly 3400 (in this embodiment, the front fan housing) and guiding the forward and backward movement of the fan housing 3400; and a cable penetration portion 3461 disposed on at least one of the left side wall 3463 and the right side wall 3464, forming an elongated hole along the forward and backward direction, through which a cable (not shown) connected to the actuator 3470 passes.

[0670] In this embodiment, the lower guide housing 3460 includes a rear housing wall 3466, which connects the housing base 3462, the left side wall 3463, and the right side wall 3464, and is disposed behind the housing base 3462, the left side wall 3463, and the right side wall 3464. The rear housing wall 3466 functions as a stop for limiting the rearward movement of the fan housing assembly 3400.

[0671] The rear wall 3466 of the housing faces the rear wall 3522 of the upper guide housing 3520 and is located further forward than the rear wall 3522.

[0672] The upper end 3466a of the rear wall 3466 of the housing is formed along the same line as the guide housing intake 3521. That is, the upper end 3466a of the rear wall 3466 of the housing is formed with the same radius of curvature as the guide housing intake 3521. The upper end 3466a of the rear wall 3466 of the housing is formed in a manner that does not obstruct the guide housing intake 3521 in the front-back direction.

[0673] The rear wall 3466 of the housing 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 prevent the fan housing assembly 3400 from moving excessively to the rear.

[0674] The stop member 3465 is positioned further forward than the rear wall 3466 of the housing. In this embodiment, the stop members 3465 are respectively disposed on the left and right sides of the housing base 3562. One of the stop members 3465 is configured to connect the housing base 3462 and the left side wall 3463, and the other is configured to connect the housing base 3462 and the right side wall 3464.

[0675] In the event that the fan housing assembly 3400 moves excessively forward, it is supported by the stop 3465, which stops the movement of the fan housing assembly 3400.

[0676] The cable penetration section 3461 connects the outer and inner storage spaces S1 of the guide housing.

[0677] The cable penetration portions 3461 are respectively formed on the left side wall 3463 and the right side wall 3464. Each cable penetration portion 3461 passes through the left side wall 3463 and the right side wall 3464 in a left-right direction. The cable penetration portions 3461 extend relatively far in a front-back direction. The cable penetration portions 3461 provide space for the cable to move together with the fan housing assembly 3400 in the front-back direction. In this embodiment, the cable penetration portions 3461 are formed to a length corresponding to the front-back movement distance of the fan housing assembly 3400.

[0678] If the cable penetration 3461 is formed to a short length that cannot correspond to the movement distance of the fan housing assembly 3400, the connection between the cable penetration 3461 and the actuator 3470 may be broken.

[0679] The cable penetration portion 3461 extends relatively long in the front-to-back direction and connects the inner and outer sides of the lower guide housing 3460. The cable penetration portion 3461 provides space so that the wiring connected to the guide motor can also move in the front-to-back direction when the fan housing assembly moves. Because the wiring can move along the cable penetration portion 3461, reliable connection to the guide motor 3472 is provided.

[0680] The lower guide housing 3460 has a fastening portion 3468 for engaging with the fan housing 320 of the proximity fan assembly. The fastening portion 3468 is formed on the housing base 3462.

[0681] The base guide 3467 is formed along the front-rear direction, which is the moving direction of the fan housing assembly 3400. Two base guides 3467 are provided, one on the left side wall 3463 and the other on the right side wall 3464.

[0682] The base guide 3467 protrudes upward from the upper side of the housing base 3462. The base guide 3467 is inserted into a groove formed on the bottom surface of the front fan housing 3430. The base guide 3467 restricts the lateral movement of the fan housing assembly 3400.

[0683] <Structural components of the rear fan housing>

[0684] The rear fan housing 3410 forms the rear surface of the fan housing assembly. The rear fan housing 3410 is disposed in front of the heat exchange assembly 500.

[0685] 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.

[0686] The rear fan housing 3410 includes: a rear fan housing body 3412, which covers the rear surface of the front fan housing 3430; a fan inlet 3411, which is disposed inside the rear fan housing body 3412 and extends through it in the front-rear direction; and a fastening part 3414, which is disposed in the rear fan housing body 3412 and is combined with the front fan housing 3430.

[0687] Multiple fasteners 3414 are provided for assembly with the front fan housing 3430. The fasteners 3414 protrude radially outward from the rear fan housing body 3412.

[0688] The rear fan housing 3410, when viewed from the front, is annular in shape with a fan intake 3411 formed inside. In particular, the rear fan housing body 3412 is annular in shape when viewed from the front.

[0689] The rear fan housing 3410 is a structural element that, together with the front fan housing 3430, surrounds the fan 3420. The fan 3420 is arranged between the rear fan housing 3410 and the front fan housing 3430.

[0690] The rear fan housing 3410 covers the rear surface of the front fan housing 3430 and is assembled at the rear end of the front fan housing 3430.

[0691] The rear fan housing 3410 is configured vertically relative to the ground. The rear fan housing 3410 is configured to face the front surface of the heat exchange assembly 500.

[0692] The fan intake 3411 and the guide housing intake 3521 are parallel and arranged facing each other. The diameter of the fan intake 3411 is smaller than the diameter of the guide housing intake 3521. An air guide 3510 is provided to connect the fan intake 3411 and the guide housing intake 3521. The fan intake 3411 is arranged facing the front surface of the heat exchange assembly 500.

[0693] The rear fan housing body 3412 is formed by a recess from the front to the rear side.

[0694] The air guide 3510 is disposed at the rear of the rear fan housing 3410 and is attached to the rear surface of the rear fan housing 3410. In particular, the air guide 3510 is assembled into the rear fan housing body 3412 and is configured to surround the fan intake 3411.

[0695] <Structural Components of the Front Fan Housing>

[0696] The front fan housing 3430 is cylindrical, open along the front-rear direction, and provides a flow path structure to guide the airflow from the fan 3420 toward the steering grille 3450. Furthermore, in this embodiment, the fan motor 3440 is assembled in the front fan housing 3430, which provides a mounting structure for mounting the fan motor 3440.

[0697] A fan motor 3440 is arranged in front of the front fan housing 3430, a fan 3420 is arranged behind it, and a lower guide housing 3460 is arranged on the lower side.

[0698] The front fan housing 3430 is assembled on the lower guide housing 3460 and is movable in the front-rear direction with respect to the lower guide housing 3460.

[0699] The front fan housing 3430 includes: an outer fan housing 3432, which is open along the front-rear direction and is formed into a cylindrical shape; an inner fan housing 3434, which is open facing forward and is disposed inside the outer fan housing 3432, and the fan motor 3440 is disposed in the inner fan housing 3434; an impeller 3436, which connects the outer fan housing 3432 and the inner fan housing 3434; and a motor mounting part 3448, which is disposed in the inner fan housing 3434 and the fan motor 3440 is assembled in the motor mounting part 3448.

[0700] The outer fan housing 3432 is formed into a cylindrical shape with its front and rear surfaces open, and the inner fan housing 3434 is arranged inside it. The outer fan housing 3432 receives driving force from the actuator 3470 and can move in the back-and-forth direction.

[0701] The open front surface of the outer fan housing 3432 is defined as the first fan opening surface 3431. In this embodiment, the first fan opening surface 3431 is circular when viewed from the front. The rear end of the steering grille 3450 can be inserted into the first fan opening surface 3431.

[0702] The interior of the outer fan housing 3432, which is open along the front-to-back direction, is defined as space S2. The first fan opening surface 3431 forms the front surface of space S2.

[0703] The front surface of the inner fan housing 3434 is open and has a bowl shape that is recessed from the front to the rear. The recessed interior of the inner fan housing 3434 is defined as space S3. The fan motor 3440 is disposed in space S3 and is fastened to the inner fan housing 3434.

[0704] The open front surface of the inner fan housing 3434 is defined as the second fan opening surface 3433. The second fan opening surface 3433 can be formed in various shapes. In this embodiment, considering the airflow, the second fan opening surface 3433 is formed as a circle.

[0705] The second fan opening surface 3433 forms the front surface of the space S3. The first fan opening surface 3431 is located further forward than the second fan opening surface 3433. The second fan opening surface 3433 is located inside the first fan opening surface 3431.

[0706] The first fan opening surface 3431 and the second fan opening surface 3433 are separated along the front-to-back direction, providing space for the steering grille 3450 to be tilted. The rear end of the steering grille 3450 may be located between the first fan opening surface 3431 and the second fan opening surface 3433.

[0707] To secure the fan motor 3440, a motor mounting portion 3438 is provided in the inner fan housing 3434.

[0708] The motor mounting portion 3438 is disposed in the space S3 and protrudes forward from the inner fan housing 3434. The fan motor 3440 also includes a motor fixing member 3442, which is fastened to the motor mounting portion 3438.

[0709] The motor mounting portion 3438 is disposed on the inner fan housing 3434. The motor mounting portions 3438 are arranged at equal intervals with respect to the central axis C1.

[0710] The motor shaft of the fan motor 3440 passes through the inner fan housing 3434 and is arranged rearward, and it is combined with the fan 3420 arranged behind the inner fan housing 3434. A shaft hole 3437 is formed in the inner fan housing 3434 for the motor shaft of the fan motor 3440 to pass through.

[0711] Since the fan motor 3440 is positioned in front of the inner fan housing 3434 and inserted into the space S3, its interference with the exhaust air is minimized.

[0712] In particular, the steering base 1070, described later, is integrated into the inner fan housing 3434 and encloses the space S3. Since the fan motor 3440 is positioned outside the exhaust airflow path, its resistance to the exhaust air is minimized. In particular, since the fan motor 3440 is located in front of the inner fan housing 3434, its resistance to air drawn in from the rear is also eliminated.

[0713] A fastening protrusion 3439 is formed in the inner fan housing 3434. The fastening protrusion 3439 is used to fix the steering base 1070 and support the steering base 1070. The fastening protrusion 3439 is arranged in three positions and is equally spaced with respect to the central axis C1.

[0714] The fastening protrusion 3439 and the motor mounting portion 3438 are disposed inside the space S3. When assembling the steering base 1070 and the fastening protrusion 3439, the motor mounting portion 3438 is hidden by the steering base 1070.

[0715] The inner fan housing 3434 and the outer fan housing 3432 are configured at a predetermined interval from each other, and the impeller 3436 connects the outer fan housing 3432 and the inner fan housing 3434 integrally.

[0716] The outer fan housing 3432, the inner fan housing 3434, and the impeller 3436 impart forward momentum to the air expelled from the fan 3420.

[0717] In addition, a first guide roller 3553 and a second guide roller 3554 are arranged on the outside of the front fan housing 3430.

[0718] The first guide roller 3553 and the second guide roller 3554 move along the first guide groove 3551 and the second guide groove 3552 disposed in the upper guide housing 3520 in the front-back direction.

[0719] The first guide roller 3553 is inserted into the first guide groove 3551, moves along the first guide groove 3551 in the front-back direction, and is supported by the first guide groove 3551.

[0720] The second guide roller 3554 is inserted into the second guide groove 3552, moves along the second guide groove 3552 in the front-back direction, and is supported by the second guide groove 3552.

[0721] The first guide roller 3553 includes: a roller shaft, which is coupled to the front fan housing 3430; and a roller, which is rotatably coupled to the roller shaft. The roller shaft is arranged in a left-right direction.

[0722] The second guide roller 3554 includes: a roller shaft, which is coupled to the front fan housing 3430; and a roller, which is rotatably coupled to the roller shaft. The roller shaft is arranged in a left-right direction.

[0723] The roller shafts of the first guide roller 3553 and the roller shafts of the second guide roller 3554 are arranged in a row.

[0724] 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.

[0725] 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 separated from the housing base 3462 of the lower guide housing 3460.

[0726] In the absence of the first guide roller 3553 and the second guide roller 3554, the load transfer of the fan housing assembly 3400 is applied to the actuator 3470, which needs to move the fan housing assembly 3400 forward or backward while supporting the load of the fan housing assembly 3400.

[0727] By using the support of the first guide roller 3553 and the second guide roller 3554 to separate the lower end of the fan housing assembly 3400, the operating load of the actuator 3470 can be reduced.

[0728] As the fan housing assembly 3400 moves forward, the front end 3430a of the front fan housing 3430 can be inserted into the door assembly 200. More specifically, the front fan housing 3430 is inserted into the front outlet 201, with the front end 3430a located inside the door assembly 200. The front end 3430a is located further rearward than the front surface 200a of the door assembly 200.

[0729] <Structural Components of a Fan>

[0730] 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 rotates inside the housing.

[0731] The fan 3420 draws in air through the fan intake 3411 and discharges it in a diagonal flow direction. The fan 3420 draws in air through the rear-mounted fan intake 3411 and discharges it in a circumferential direction. The discharge direction of the air through the fan housing assembly is a diagonal flow direction. In this embodiment, the diagonal flow direction refers to the direction between the front and the circumferential directions.

[0732] <Structural Components of Air Guide Components and Air Guide Component Supports>

[0733] The air guide 3510 combines the fan housing assembly 3400 and the guide housing (the upper guide housing in this embodiment), and connects the guide housing inlet 3521 and the fan inlet 3411.

[0734] The air guide 3510 is open in the front-to-back direction, allowing air to flow into it. Specifically, the air guide 3510 connects the rear fan housing 3410 and the upper guide housing 3520, and guides the air drawn in from the guide housing intake 3521 to the fan intake 3411.

[0735] The air guide 3510 is formed of an elastic material and can expand or contract when the front fan housing 3430 moves in the front-rear direction.

[0736] Since the air guide 3510 is made of elastic material, additional structural elements are required to secure it to the guide housing and fan housing assembly 3400.

[0737] The long-range fan assembly 400 further includes: a first air guide bracket 3530 for fixing the air guide 3510 to the guide housing (upper guide housing in this embodiment); and a second air guide bracket 3540 for fixing the air guide 3510 to the fan housing assembly 3400 (rear fan housing in this embodiment).

[0738] The air guide 3510 is made of an elastic material and can be formed into a cylindrical shape.

[0739] The air guide 3510 has an air guide outlet 3511 on the front side (fan housing assembly side in this embodiment) and an air guide inlet 3513 on the rear side (guide housing side in this embodiment).

[0740] The diameter of the air outlet 3511 of the air guide can be formed as G1, and the diameter of the air inlet 3513 of the air guide can be formed as G2. G1 and G2 can be the same, but in this embodiment, G2 is larger than G1.

[0741] 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.

[0742] In this embodiment, G1 is larger than the diameter of the fan intake 3411, and the entire fan intake 3411 is preferably located inside the air guide outlet 3511.

[0743] Similarly, G2 is preferably larger than the diameter G4 of the guide housing inlet 3521.

[0744] The first air guide bracket 3530 fixes the rear end 3514 of the air guide 3510 to the guide housing (the 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.

[0745] The first air guide bracket 3530 includes: a bracket body 3532, which is formed in a ring shape; and a bracket fastening part 3534, which is disposed on the bracket body 3532 and protrudes outward from the bracket body 3532.

[0746] The support body 3532 is formed in a circular shape, and the diameter of the support body 3532 is defined as G3. The diameter G3 of the support 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.

[0747] The rear end 3513 of the air guide is located on the back side of the rear wall 3522 through the intake port 3521 of the guide housing, and the bracket body 3532 makes the rear end 3513 of the air guide fit tightly against the rear wall 3522.

[0748] In this embodiment, a bracket insertion portion 3528 is formed on the rear wall 3522 of the upper guide housing 3520.

[0749] Because of the additional arrangement of the bracket insertion portion 3528, the guide housing suction port 3521 is defined as the inner side of the inner edge of the bracket insertion portion 3528.

[0750] The bracket insertion portion 3528 includes: a first insertion wall 3528a, which protrudes forward from the rear wall 3522; and a second insertion wall 3528b, which protrudes from the first insertion wall 3528a toward the central axis C1 side of the fan housing assembly 3400.

[0751] Using the first insertion wall 3528a and the second insertion wall 3528b, the bracket insertion portion 3528 forms a forward-recessed end.

[0752] The support body 3532 includes: a first support body portion 3535, configured to face the second insertion wall 3528b; and a second support body portion 3536, protruding forward from the inner edge of the first support body portion 3535. Both the first support body portion 3535 and the second support body portion 3536 are bent.

[0753] The rear end 3513 of the air guide is arranged between the first bracket body portion 3535 and the second insertion wall 3528b, with the first bracket body portion 3535 such that the rear end 3513 is in close contact with the second insertion wall 3528b.

[0754] The second support body 3536 is positioned further inward than the inner edge of the first insertion wall 3528a. An air guide 3510 is arranged between the second support body 3536 and the first insertion wall 3528a.

[0755] The fastening component (a screw in this embodiment) passes through the fastening part 3534 of the bracket and is fastened to the rear wall 3522.

[0756] A first bracket mounting portion 3522a is arranged on the back side of the rear wall 3522, and a bracket fastening portion 3534 is located in the first bracket mounting portion 3522a. The first bracket mounting portion 3522a is recessed, and a portion of the bracket fastening portion 3534 is inserted into the first bracket mounting portion 3522a. The operator can align the assembly position of the bracket fastening portion 3534 through the first bracket mounting portion 3522a.

[0757] Multiple bracket fastening portions 3534 are provided, and four are provided in this embodiment. The bracket fastening portions 3534 protrude outward in a radial direction with reference to the central axis C1 of the fan housing assembly 3400, and are arranged at equal intervals with reference to the central axis C1.

[0758] Since the first air guide bracket 3530 is fixed to the back of the rear wall 3522, the rear end 3513 of the air guide 3510 can be prevented from separating when the fan housing assembly 3400 moves back and forth.

[0759] Furthermore, since the first air guide bracket 3530 is assembled on the back of the rear wall 3522, it has the advantage of easy replacement of the air guide 3510.

[0760] Furthermore, since the first air guide bracket 3530 presses down on the entire rear end 3513 of the air guide 3510 to press it tightly against the rear wall 3522, it evenly supports the entire rear end 3513 of the air guide 3510 and prevents tearing at specific locations. In particular, since the fastening members securing the first air guide bracket 3530 do not penetrate the air guide 3510, damage to the air guide 3510 can be prevented.

[0761] In this embodiment, the second air guide bracket 3540 uses a snap ring.

[0762] In order to install the second air guide bracket 3540 in the form of a retaining ring, a second bracket mounting portion 3415 is formed on the back side of the rear fan housing 3410.

[0763] The second bracket mounting portion 3415, when viewed from the rear, is ring-shaped and positioned further outward than the fan intake 3411. The second bracket mounting portion 3415 is a rib extending rearward and outward from the rear of the rear fan housing 3410, and has a groove 3416 formed on its outer side for insertion into the second air guide bracket 3540. The groove 3416 is open radially outward toward the central axis C1 of the fan housing assembly 3400 and is recessed toward the central axis C1.

[0764] Furthermore, a guide wall 3417 is formed on the back of the rear fan housing 3410 for retracting it into the correct position of the air guide 3510. The guide wall 3417 faces the second insertion wall 3528b and is located further forward than the second insertion wall 3528b.

[0765] When viewed from the rear of the rear fan housing 3410, the guide wall 3417 is formed in an annular shape.

[0766] <Structural Components of the Actuator>

[0767] The actuator 3470 provides a driving force to move the fan housing assembly 3400 in the back-and-forth direction. According to a control signal from the control unit, the actuator 3470 can move the fan housing assembly 3400 in the back-and-forth direction.

[0768] When the indoor unit is running, the actuator 3470 causes the fan housing assembly 3400 to move forward, and when the indoor unit stops, the actuator 3470 causes the fan housing assembly 3400 to move backward.

[0769] The actuator 3470 can be any structural element capable of moving the fan housing assembly 3400 in the back-and-forth direction. For example, the actuator 3470 can be a hydraulic cylinder or a linear motor capable of moving the fan housing assembly 3400 in the back-and-forth direction.

[0770] In this embodiment, the actuator 3470 transmits the driving force of the motor to the fan housing assembly 3400, thereby causing the fan housing assembly 3400 to move forward or backward.

[0771] In this embodiment, since the first guide roller 3553 and the second guide roller 3554 configured on the fan housing assembly 3400 support the load of the fan housing assembly 3400, the actuator 3470 can minimize the operating load caused by the forward or backward movement of the fan housing assembly 3400.

[0772] In this embodiment, the central axis C1 of the fan housing assembly is aligned with the center of the front discharge port 201. The actuator 3470 moves the fan housing assembly 3400 forward or backward along the central axis C1.

[0773] The guide housing (in this embodiment, the upper guide housing or the lower guide housing) guides the fan housing assembly 3400 to move back and forth.

[0774] The actuator 3470 includes: a guide motor 3472 disposed on the fan housing assembly 3400, providing driving force for moving the fan housing assembly 3400 in a forward-backward direction; a guide shaft 3474 disposed on the fan housing assembly 3400, rotating by the rotational force transmitted to the guide motor 3472; a first guide gear 3476 engaged with the left side of the guide shaft 3474, rotating together with the guide shaft 3474; a second guide gear 3477 engaged with the right side of the guide shaft 3474, rotating together with the guide shaft 3474; a first rack 3478 disposed on the lower guide housing 3460, meshing with the first guide gear 3476; and a second rack 3479 disposed on the lower guide housing 3460, meshing with the second guide gear 3477.

[0775] In this embodiment, the guide motor 3472, the first guide gear 3476, the second guide gear 3477, and the guide shaft 3474 are disposed on the front fan housing 3430 and move together with the fan housing assembly 3400 when it moves forward or backward.

[0776] The first rack 3478, which meshes with the first guide gear 3476, and the second rack 3479, which meshes with the second guide gear 3477, are disposed in the lower guide housing 3460.

[0777] Unlike this embodiment, the guide motor 3472, the first guide gear 3476, the second guide gear 3477, and the guide shaft 3474 can be disposed in the lower guide housing 3460, and the first rack 3478 and the second rack 3479 are disposed in the front fan housing 3430.

[0778] The fan housing assembly 3400 moves forward or backward by means of the meshing of the racks 3478 and 3479 and the guide gears 3476 and 3477.

[0779] In this embodiment, a single guide motor 3472 is used, and a guide shaft 3474 is arranged to ensure uniform movement of the front fan housing 3430. A first guide gear 3476 and a second guide gear 3477 are respectively arranged at both ends of the guide shaft 3474. The guide shaft 3474 is configured along the left-right direction.

[0780] 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.

[0781] Racks 3478 and 3479, which mesh with the guide gears 3476 and 3477, are respectively disposed on the left and right sides of the lower guide housing 3460.

[0782] In this embodiment, the first guide gear 3476 and the second guide gear 3477 are disposed on the upper side of the first rack 3478 and the second rack 3479. The first guide gear 3476 and the second guide gear 3477 move along the first rack 3478 and the second rack 3479 in the front-back direction.

[0783] 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.

[0784] The first rack 3478 and the second rack 3479 are disposed on the lower side of the guide gears 3476 and 3477, and interfere with each other by meshing with the guide gears 3476 and 3477.

[0785] The first guide gear 3476 rolls along the first rack 3478 in the front-back direction, and the second guide gear 3477 also rolls along the second rack 3479 in the front-back direction.

[0786] The guide motor 3472 can be configured on the lower left or lower right side of the front fan housing 3430. The motor shaft of the guide motor 3472 can be directly coupled to the first guide gear 3476 or the second guide gear 3477.

[0787] Therefore, when the guide motor 3472 rotates, under the action of the rotational force of the guide motor 3472, the first guide gear 3476 and the second guide gear 3477 can rotate simultaneously, and the left and right sides of the fan housing assembly 3400 can move forward or backward in the same direction.

[0788] 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 along the front-back direction, which is the direction of movement of the guide motor 3472.

[0789] The motor guide groove 3469 is formed on the housing base 3462 of the lower guide housing 3460 and is recessed into the lower side from the housing base 3462.

[0790] The motor guide groove 3469 is disposed outside the first rack 3478 or the second rack 3479. The motor guide groove 3469 is recessed downwards compared to the first rack 3478 or the second rack 3479.

[0791] The motor guide slot 3469 ensures sufficient space for the installation and movement of the guide motor 3472, and minimizes the overall height of the long-distance fan assembly 400. In particular, by forming the motor guide slot 3469 recessed downwards, the guide motor 3472 can be directly coupled to the first guide gear 3476 or the second guide gear 3477, and the number of transmission components can be minimized.

[0792] In order to smoothly realize the sliding movement of the fan housing assembly 3400, a first guide rail 3480 and a second guide rail 3490 are arranged between the fan housing assembly 3400 (the front fan housing 3430 in this embodiment) and the lower guide housing 3460.

[0793] The first guide rail 3480 connects 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 direction of movement of the fan housing assembly.

[0794] In this embodiment, the first guide rail 3480 is respectively attached to the left side wall 3463 of the lower guide housing 3460 and the front fan housing 3430, and is used to generate sliding.

[0795] The second guide rail 3490 connects 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 direction of movement of the fan housing assembly.

[0796] In this embodiment, the second guide rail 3490 is respectively attached to the right side wall 3464 of the lower guide housing 3460 and the front fan housing 3430, and is used to generate sliding.

[0797] The first guide rail 3480 and the second guide rail 3490 are arranged symmetrically about the central axis C1 of the fan housing assembly.

[0798] Since the first guide rail 3480 and the second guide rail 3490 support a portion of the load of the fan housing assembly, the fan housing assembly can move smoothly back and forth.

[0799] The first guide rail 3480 and the second guide rail 3490 are positioned higher than 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 left and right movement of the fan housing assembly 3400.

[0800] Since the first guide rail 3480 and the second guide rail 3490 are arranged symmetrically with the central axis C1 as the reference, the left and right sides of the fan housing assembly can move at the same speed and distance.

[0801] If the moving speed and distance of the fan housing assembly are uneven on the left or right side, the remote component 400 may wobble during movement. Furthermore, if the moving speed and distance of the fan housing assembly are uneven on the left or right side, the steering grille 3450 may not be able to accurately insert into the inside of the front discharge port 201.

[0802] The first guide rail 3480 and the second guide rail 3490 minimize the friction when the front fan housing 3430 moves by rolling friction.

[0803] Since the structural components of the first guide rail 3480 and the second guide rail 3490 are the same and symmetrical, the structural components will be described using the first guide rail 3480 as an example.

[0804] The guide rail 3480 includes: a long rail housing 3482, which extends relatively long in the front-rear direction and is disposed in the guide housing (in this embodiment, the lower guide housing); a short rail housing 3484, which extends in the front-rear direction and is shorter than the length of the long rail housing 3482, and is disposed in the fan housing assembly (in this embodiment, the front fan housing); and a bearing housing 3486, which is disposed between the long rail housing 3482 and the short rail housing 3484, and is assembled with the long rail housing 3482 and the short rail housing 3484 in a relatively movable manner. When the short rail housing 3484 moves, the rolling friction of the bearing 3485 reduces the friction with the long rail housing 3482 and the short rail housing 3484 respectively.

[0805] The bearing housing 3486 is assembled to the long track housing 3482 and can move along the length of the long track housing 3482. The short track housing 3484 is assembled to the bearing housing 3486 and can move along the length of the bearing housing 3486.

[0806] That is, the present invention is a structure in which the short track housing 3484 and the bearing housing 3486 are assembled in a way that allows them to move relative to each other, and the bearing housing 3486 and the long track housing 3482 are assembled in a way that allows them to move relative to each other.

[0807] The bearing housing 3486 is formed to be shorter than the long track housing 3482 and longer than the short track housing 3484. The bearing housing 3486 and the short track housing 3484 can only slide within the length of the long track housing 3482.

[0808] The length of the long track housing 3482 corresponds to the front-to-back length F2 of the lower guide housing 3460. In this embodiment, track mounting portions 3463a and 3464a for fixing the long track housing 3482 are arranged on the inner surfaces of the left side wall 3463 and the right side wall 3464. In this embodiment, the track mounting portions 3463a and 3464a are positioned higher than the cable penetration portion 3465.

[0809] Figure 42 yes Figure 31 The diagram shows a perspective view of the steering grille. Figure 43 yes Figure 31 The front view of the fan housing assembly with the steering grille separated. Figure 44 yes Figure 36 The diagram shows a perspective view of the steering base. Figure 45 yes Figure 44 Rear view. Figure 46 yes Figure 36 The exploded perspective view of the connector assembly is shown. Figure 47 yes Figure 36 An exploded perspective view of the rear side of the steering grille and steering assembly shown. Figure 48 yes Figure 47 A perspective view of the back side of the bushing shown. Figure 49 yes Figure 36 The diagram shows an exploded perspective view of the steering assembly. Figure 50 From Figure 49 An exploded perspective view of the steering assembly viewed from the rear. Figure 51 It is shown Figure 49 The diagram shows the assembled state of the steering body and steering motor. Figure 52 yes Figure 51 The main view. Figure 53 This is a cross-sectional view showing the combined structure of a steering component according to an embodiment of the present invention. Figure 54 yes Figure 53 The diagram shows the operation of the steering component.

[0810] <Structural elements of the steering grille>

[0811] The steering grille 3450 is located in front of the front fan housing 3430. The rear end of the steering grille 3450 is partially inserted into the front fan housing 3430. When inserted into the front fan housing 3430, the steering grille 3450 can be tilted in the up, down, left, right or diagonal direction.

[0812] The rear end of the steering grille 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 grille 3450 is located further forward than the inner fan housing 3434.

[0813] The steering grille 3450 is shaped to correspond 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 circular, and the steering grille 3450 is circular with a smaller diameter than the first fan opening surface 3431.

[0814] The steering grille 3450 includes: a steering housing 3452, which is open at the front and rear and has a space S4 formed on the inner side; a steering cover 3454, which is disposed on the inner side of the steering housing 3452 and faces forward; and a plurality of impellers 3456, which are disposed in the space S4 of the steering housing 3452 and connect the steering housing 3452 and the steering cover 3454.

[0815] 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 circular.

[0816] The outer surface 3451 of the steering housing 3452 is curved in the front-rear direction. When the steering grille 3450 is tilted, the outer surface 3451 of the steering housing 3452, which is curved, can maintain a constant distance from the front fan housing 3430 (outer fan housing 3432 in this embodiment).

[0817] The outer surface 3451 of the steering housing 3452 can correspond to the radius of rotation of the steering grille 3450. The center of curvature of the outer surface 3451 of the steering housing 3452 can be arranged on the central axis C1. That is, the outer surface 3451 can be an arc shape centered on the central axis C1.

[0818] The steering grille 3450 is tilted when inserted into the front fan housing 3430. The outer surface 3451 of the steering housing 3452, which is formed in an arc shape, allows the spacing P between the outer surface 3451 of the steering housing 3452 and the inner surface of the outer fan housing 3432 to be uniformly formed during tilting.

[0819] When tilting, by minimizing the gap P between the outer side 3451 of the steering housing 3452 and the inner side of the outer fan housing 3432, the leakage of the expelled air to the outside of the steering grille 3450 can be minimized.

[0820] If the air discharged into the interval P is cooled air, it may cool the edge of the front discharge port 201 and cause condensation. By minimizing the interval P, the condensation at the edge of the front discharge port 201 can be minimized.

[0821] In this embodiment, the axis center of the steering housing 3452 is arranged at the axis center C1 of the fan housing assembly 3400, and also coincides with the motor shaft of the fan motor 3440.

[0822] The steering cover 3454 is disposed in the space S4 and is arranged in the vertical direction. The area and shape of the steering cover 3454 correspond to the area and shape of the steering base 1070.

[0823] A first steering assembly 1001 and a second steering assembly 1002, described later, are arranged behind the steering cover 3454. The first steering assembly 1001 and the second steering assembly 1002 are covered by the steering cover 3454. The steering cover 3454 is formed with a smaller area than the steering base 1070 and is positioned in front of the steering base 1070.

[0824] Exhausted air flows between the outer side of the steering cover 3454 and the inner side of the steering housing 3452. Since the steering cover 3454 is positioned in front of the steering base 1070, air will not flow directly towards the steering cover 3454.

[0825] The steering cover 3454 is configured in the forward and backward directions between the front end 3452a and the rear end 3452b of the steering housing 3452.

[0826] The steering cover 3454 is connected to the steering assembly 1000 and transmits the operating force to the steering assembly 1000.

[0827] The impeller 3456 includes a circular impeller 3457 and a blade impeller 3458.

[0828] The circular impellers 3457 are composed of multiple impellers, each with a different diameter, and the center of each impeller 3457 is arranged on the central axis C1. That is, the circular impellers 3457 form concentric circles centered on the central axis C1.

[0829] Multiple blade impellers 3458 are configured radially around the central axis C1. The circular impellers 3457 and the blade impellers 3458 intersect each other.

[0830] The inner end of the blade impeller 3458 is attached to the steering cover 3454, and the outer end is attached to the steering housing 3452.

[0831] In this embodiment, the steering housing 3452, steering cover 3454, circular impeller 3457, and blade impeller 3458 are integrally manufactured by injection molding.

[0832] The steering grille 3450 can be tilted along the upper, lower, left, right, or any diagonal direction with the axis center C1 as a reference. The steering grille 3450 can be arranged to protrude further forward than the front outlet 201.

[0833] As the fan housing assembly 3400 moves forward, the front end 3452a of the steering housing 3452 is located further forward than the front discharge port 201, and the rear end 3452b of the steering housing 3452 is located further rear than the front discharge port 201.

[0834] Similarly, when the steering grille 3450 is tilted, the front end 3452a of the steering housing 3452 is located further forward than the front outlet 201, and the rear end 3452b of the steering housing 3452 is located further rear than the front outlet 201.

[0835] <Structural elements of the steering assembly>

[0836] The steering assembly 1000 is disposed between the steering grille 3450 and the front fan housing 3430. The steering assembly 1000 is positioned to minimize interference with the exhaust air.

[0837] The steering assembly 1000 is located in front of the inner fan housing 3434 to minimize its interference with the exhaust air. In particular, the steering assembly 1000 is located in front of the fan motor 3440.

[0838] In this embodiment, a steering base 1070 is configured to cover the space S3 of the inner fan housing 3434, and the steering assembly 1000 is disposed on the steering base 1070. Unlike this embodiment, the steering assembly 1000 can be disposed on a structure on the side of the front fan housing 3430. For example, the steering assembly 1000 can be disposed on the inner fan housing 3434 or the motor mounting member 3442, etc., and cause the steering grille 3450 to steer.

[0839] The steering assembly 1000 provides a structure that allows the steering grille 3450 to be unrestricted by tilting direction or sequence. For example, the steering assembly 1000 provides a structure that allows the steering grille 3450 to tilt in the left-right direction or in the diagonal direction after tilting in the vertical direction.

[0840] The steering assembly 1000 enables the steering grille 3450 to tilt immediately from any first direction to any second direction. Since it is not restricted in the tilting direction, the steering grille 3450 can be turned immediately.

[0841] In this embodiment, the first direction is set to a horizontal direction, and the second direction is set to a vertical direction. Unlike this embodiment, the first and second directions can be arbitrarily changed. In this embodiment, the first and second directions form a 90-degree angle.

[0842] The steering assembly 1000 includes: a steering base 1070 disposed on the front fan housing 3430 and behind the steering grille 3450; a connector assembly 1100 coupled to the steering base 1070 and the steering grille 3450, and assembled to the steering base 1070 and the steering grille 3450 respectively in an tiltable manner; and a first steering assembly 1001 disposed on the steering base 1070 and assembled to the steering grille 3450 in a rotatable manner, via a first steering actuator (in this embodiment). The steering motor 1030 is used to drive or pull the steering grille 3450 and tilt the steering grille 3450 about the joint assembly 1100. The second steering assembly 1002 is disposed on the steering base 1070 and is assembled with the steering grille 3450 in a rotatable manner. The second steering actuator (steering motor 1030 in this embodiment) is used to drive or pull the steering grille 3450 and tilt the steering grille 3450 about the joint assembly 1100.

[0843] The first steering assembly 1001 and the second steering assembly 1002 are disposed on the rear side of the steering grille 3450.

[0844] The first steering assembly 1001 is assembled on the back side of the steering grille 3450 and moves the assembled portion of the steering grille 3450 in the front-rear direction. The second steering assembly 1002 is also assembled on the back side of the steering grille 3450 and moves the assembled portion of the steering grille 3450 in the front-rear direction.

[0845] In this embodiment, the first steering component 1001 and the second steering component 1002 are configured along the front-rear direction.

[0846] When viewed from the front or back, the portion of the first steering assembly 1001 that pushes or pulls the steering grille 3450 and the portion of the second steering assembly 1002 that pushes or pulls the steering grille 3450 form an angle of 90 degrees with respect to the central axis C1.

[0847] In this embodiment, the portion of the push or pull steering grille 3450 of the first steering assembly 1001 is located above the vertical direction of the central axis C1. The portion of the push or pull steering grille 3450 of the second steering assembly 1002 can be configured on the left or right side of the central axis C1.

[0848] The connector assembly 1100 provides the tilt center of the steering grille 3450. The tilt center of the connector assembly 1100 is configured on a central axis C1 that extends through the center of the front outlet 201 in the front-rear direction.

[0849] The connector assembly 1100 is attached to the back side of the steering grille 3450. The connector assembly 1100 provides a rotation center that enables the steering grille 3450 to be steered in any direction. The connector assembly 1100 provides a rotation center with the front side as a reference, so that the steering grille 3450 faces up, down, left, right, upper left, lower left, upper right, and lower right.

[0850] The joint assembly 1100 may use a ball joint. In the case of a ball joint, since it does not have a structure capable of supporting the load of the steering grille 3450, sagging may occur.

[0851] The connector assembly 1100 provides a structure capable of supporting the load of the steering grille 3450 when steering.

[0852] In this embodiment, the connector assembly 1100 includes: a first connector bracket 1110, assembled on the steering base 1070, and providing a pivot for a first direction (left-right direction in this embodiment); a second connector bracket 1120, assembled on the steering grille 3450, and providing a pivot for a second direction (up-down direction in this embodiment); and a cross shaft 1130, rotatably assembled on the first connector bracket 1110 and the second connector bracket 1120, and providing pivots along the first and second directions.

[0853] Since the first connector bracket 1110 and the second connector bracket 1120 are identical structural elements, their installation positions can also be opposite to each other. When the installation positions are opposite, the first connector bracket 1110 provides a pivot for the second direction, and the second connector bracket 1120 provides a pivot for the first direction.

[0854] The first connector bracket 1110 includes: a first bracket body 1112, assembled on the steering base 1070; a first-1 shaft support portion 1113, disposed on the first bracket body 1112 and protruding toward the second connector bracket 1120; and a first-2 shaft support portion 1114, disposed on the first bracket body 1112, protruding toward the second connector bracket 1120, and arranged opposite to the first-1 shaft support portion 1123.

[0855] The first support body 1112 extends relatively long, and in this embodiment, the first support body 1112 is configured along the left-right direction. Fastening grooves 1115 and 1116 are formed on one side and the other side of the first support body 1112, respectively. Each fastening groove 1115 and 1116 is recessed into the first support body 1112 and is configured to face the steering base 1070.

[0856] In this embodiment, the first-1 axis support portion 1113 is disposed on the upper side, and the first-2 axis support portion 1114 is disposed on the lower side. The first-1 axis support portion 1113 and the first-2 axis support portion 1114 are arranged along the vertical direction.

[0857] The second connector bracket 1120 includes: a second bracket body 1122 assembled on the steering grille 3450; a second-first shaft support portion 1123 disposed on the second bracket body 1122 and protruding toward the first connector bracket 1110; and a second-second shaft support portion 1124 disposed on the second bracket body 1122, protruding toward the first connector bracket 1110, and arranged opposite to the second-first shaft support portion 1123.

[0858] The second support body 1122 extends considerably and, in this embodiment, is configured along the vertical direction. Fastening grooves 1125 and 1126 are formed on one side and the other side of the second support body 1122, respectively. Each fastening groove 1125 and 1126 is recessed into the second support body 1122 and is configured to face the steering grille 3450.

[0859] Shaft holes 1123a (not shown) are formed in the second-1st shaft support portion 1123 and the second-2nd shaft support portion 1124, and the shaft holes 1123a (not shown) are arranged facing each other. The shaft holes 1123a (not shown) are arranged along the horizontal direction.

[0860] In this embodiment, the second-first axis support portion 1123 is disposed on the right side, and the second-second axis support portion 1124 is disposed on the left side. The second-first axis support portion 1123 and the second-second axis support portion 1124 are arranged along the left-right direction.

[0861] The cross shaft 1130 provides a vertical rotation shaft and a horizontal rotation shaft. The cross shaft 1130 is preferably disposed on the axis center C1.

[0862] The cross shaft 1130 includes: a cross body 1135, formed in a "+" shape; a first-1 rotating shaft 1131, disposed on the cross body 1135 along the second direction (vertical direction in this embodiment), and rotatably assembled with the first-1 shaft support 1113; and a first-2 rotating shaft 1131, disposed on the cross body 1135 along the second direction (vertical direction in this embodiment), rotatably assembled with the first-2 shaft support 1114, and disposed on the cross body 1135. On the opposite side of the first-1 rotating shaft 1131; the second-1 rotating shaft 1133 is arranged along the first direction (left-right direction in this embodiment) on the cross body 1135 and is rotatably assembled with the second-1 shaft support 1123; the second-2 rotating shaft 1134 is arranged along the first direction (left-right direction in this embodiment) on the cross body 1135 and is rotatably assembled with the second-2 shaft support 1124, and is arranged on the opposite side of the second-1 rotating shaft 1133.

[0863] The rotating shafts 1131, 1132, 1133, and 1134 can be inserted into the shaft support portions 1113, 1114, 1123, and 1124 for rotation. In this case, due to the length of the cross shaft 1130, it is necessary to additionally manufacture the shaft support portions 1113, 1114, 1123, and 1124, and then assemble them into the bracket bodies 1112 and 1122.

[0864] In this embodiment, for ease of assembly and disassembly, the first connector bracket 1110 and the second connector bracket 1120 are integrally manufactured by injection molding.

[0865] Furthermore, each of the rotating shafts 1131, 1132, 1133, and 1134 of the cross shaft 1130 is threaded and is provided with a shaft cap 1141, 1142, 1143, and 1144 that is screwed into each of the rotating shafts 1131, 1132, 1133, and 1134.

[0866] Each of the shaft caps 1141, 1142, 1143, and 1144 has the same structural features. For ease of explanation, the shaft cap assembled on the first-1 rotating shaft 1131 is defined as the first-1 shaft cap 1141, the shaft cap assembled on the first-2 rotating shaft 1132 is defined as the first-2 shaft cap 1142, the shaft cap assembled on the second-1 rotating shaft 1133 is defined as the second-1 shaft cap 1143, and the shaft cap assembled on the second-2 rotating shaft 1134 is defined as the second-2 shaft cap 1144.

[0867] The shaft cap includes: a shaft cap body 1145, which is cylindrical and inserted into the shaft hole for rotation; a shaft cap support 1146, which protrudes outward in a radial direction from the shaft cap body 1145 and is supported by the shaft support; and an internal thread 1147, which is formed inside the shaft cap body 1145.

[0868] The first-1 shaft cap 1141 is inserted into the first-1 shaft support 1113 and assembled with the first-1 rotating shaft 1131. The first-2 shaft cap 1142 is inserted into the first-2 shaft support 1114 and assembled with the first-2 rotating shaft 1132. The assembly directions of the first-1 shaft cap 1141 and the first-2 shaft cap 1142 are opposite to each other.

[0869] In this embodiment, the first-1 shaft cap 1141 and the first-2 shaft cap 1142 are arranged in the vertical direction and can be rotated in the horizontal direction.

[0870] The second-1 shaft cap 1143 is inserted into the second-1 shaft support portion 1123 and assembled with the second-1 rotating shaft 1133. The second-2 shaft cap 1144 is inserted into the second-2 shaft support portion 1124 and assembled with the second-2 rotating shaft 1134. The assembly directions of the second-1 shaft cap 1143 and the second-2 shaft cap 1144 are opposite to each other.

[0871] In this embodiment, the second-1st shaft cap 1143 and the second-2nd shaft cap 1144 are arranged in a horizontal direction and can rotate in a vertical direction.

[0872] Fastening protrusions 1125a and 1126a for fixing the second connector bracket 1120 are formed on the back side of the steering grille 3450. The fastening protrusions 1125a and 1126a of the steering grille 3450 are inserted into the fastening grooves 1125 and 1126 of the second connector bracket 1120, and the second connector bracket 1120 is fixed to the steering grille 3450 by fastening members (not shown).

[0873] The steering base 1070 covers the space S3 of the inner fan housing 3434.

[0874] The steering base 1070 includes: a base body 1075, which is attached to the inner fan housing 3434; fastening protrusions 1073 and 1074 formed on the front surface of the base body 1075, and a first connector bracket 1110 assembled on the fastening protrusions 1073 and 1074; a first through hole 1071 that penetrates the base body 1075 in the front-rear direction, and a first steering assembly 1001 that penetrates the first through hole 1071; a second through hole 1072 that penetrates the base body 1075 in the front-rear direction, and a second steering assembly 1002 that penetrates the second through hole 1072; a first base mounting portion 1076 formed on the back side of the base body 1075, and the first steering assembly 1001 disposed on the first base mounting portion 1076; and a second base mounting portion 1077 formed on the back side of the base body 1075, and the second steering assembly 1002 disposed on the second base mounting portion 1077.

[0875] The first steering assembly 1001 can also be disposed in front of the steering base 1070. In this embodiment, to prevent an increase in the longitudinal length of the fan housing assembly 3400 due to the installation of the first steering assembly 1001, the first steering assembly 1001 is located in the space S3. The first steering assembly 1001 is located in the space S3, assembled on the back of the steering base 1070, and is assembled in the steering grille 3450 through the first through hole 1071.

[0876] For the same reason, the second steering assembly 1002 is located in the space S3, assembled on the back of the steering base 1070, and assembled in the steering grille 3450 through the first through hole 1071.

[0877] The first steering assembly 1001 pushes or pulls the steering grille 3450, which is tilted in the vertical direction with respect to the connector assembly 1100.

[0878] The second steering assembly 1002 pushes or pulls the steering grille 3450, which is tilted horizontally with respect to the connector assembly 1100.

[0879] The steering grille 3450 can be tilted diagonally with reference to the joint assembly 1100 by combining the operating directions of the first steering assembly 1001 and the second steering assembly 1002.

[0880] The first base mounting portion 1076 is used to fix the first steering assembly 1001, and in this embodiment, it is formed in the shape of a protruding post. The second base mounting portion 1077 is used to fix the second steering assembly 1002, and in this embodiment, it is formed in the shape of a protruding post.

[0881] The first base mounting portion 1076 protrudes rearward from the back of the steering base 1070 and is inserted into the steering body 1010, which will be described later. A fastening member (not shown) passes through the steering body 1010 and the first base mounting portion 1076 for fastening.

[0882] When fastening the steering body 1010, the first base mounting portion 1076 is disposed in two positions to temporarily fix the fastening position of the steering body 1010. One of them is referred to as the first-1 base mounting portion 1076a, and the other is referred to as the first-2 base mounting portion 1076b.

[0883] The structure of the second base mounting part 1077 is the same as that of the first base mounting part 1076.

[0884] The second base mounting part 1077 is also disposed in two positions. One base mounting part is referred to as the second-1 base mounting part 1077a, and the other base mounting part is referred to as the second-2 base mounting part 1077b.

[0885] <Structural elements of the steering assembly>

[0886] The first steering assembly 1001 and the second steering assembly 1002 have the same constituent components, differing only in the assembly position of the steering grille 3450. In this embodiment, the structural elements of the first steering assembly 1001 are used as an example for explanation. When it is necessary to distinguish the constituent components of the first steering assembly 1001 and the second steering assembly 1002, they will be distinguished as "first" or "second".

[0887] The first steering assembly 1001 includes: a steering body 1010, fixed to the front fan housing 3430 side or the steering grille 3450 side; a steering actuator (in this embodiment, a steering motor 1030), assembled on the steering body 1010; a movable rack 1020, movably assembled on the steering body 1010, moving by the operation of the steering actuator; a rack guide 1012, disposed on the steering body 1010, the movable rack 1020 being movably assembled on the rack guide 1012 for moving the direction of movement of the movable rack 1020; a steering gear 1040, coupled to the motor shaft 1031 of the steering motor 1030, meshing with the movable rack 1020, and providing driving force to the movable rack 1020 by the operation of the steering motor 1030; and an adjustment assembly 3600. The assembly is rotatably assembled with the movable rack 1020 and the steering grille 3450. When the movable rack 1020 moves, the distance and angle between the steering grille 3450 and the movable rack 1020 are adjusted.

[0888] The steering body 1010 can be fixed to the front fan housing 3430 or the steering grille 3450. In this embodiment, considering the power supply and cable routing of the steering actuator, the steering body 1010 is disposed on the structure on the front fan housing 3430 side.

[0889] When the steering body 1010 is installed on the steering grille 3450 that steers according to a control signal, there is a problem that the cable will also be steered along with it. Furthermore, when the steering body 1010 is assembled on the steering grille 3450, there is a problem that due to the increased load on the steering grille 3450 side, the steering actuator used to steer the steering grille 3450 also needs to be increased.

[0890] In this embodiment, the steering actuator is mounted on a steering base 1070 fixed to the front fan housing 3430. In particular, to minimize the gap between the steering grille 3450 and the steering base 1070, the steering body 1010 is positioned on the back of the steering base 1070, and the adjustment assembly 3600 is configured to pass through the steering base 1070.

[0891] Because the adjustment components 3600 are configured to pass through the through holes 1071 and 1072 of the steering base 1070, the distance between the steering base 1070 and the steering grille 3450 can be minimized. Furthermore, by minimizing the distance between the steering base 1070 and the steering grille 3450, the length of the adjustment components 3600 can be minimized, and the relative displacement and relative angle occurring within the adjustment components 3600 can be controlled more precisely.

[0892] The steering actuator is a structural element used to move the movable rack 1020 in the forward and backward direction. The steering actuator may use a hydraulic cylinder. In this embodiment, the steering actuator uses a stepper motor, which is defined as steering motor 1030.

[0893] The steering motor 1030 is assembled on the steering body 1010, and the movable rack 1020 is arranged between the steering motor 1030 and the steering body 1010.

[0894] The rack guide 1012 guides the movement direction of the movable rack 1020. In this embodiment, the rack guide 1012 is configured along the front-rear direction. In this embodiment, the rack guide 1012 is integrally formed in the steering body 1010. The rack guide 1012 can be formed as a slot or slit. In this embodiment, the rack guide 1012 is formed as a slit penetrating the steering body 1010, into which the movable rack 1020 is inserted.

[0895] The steering motor 1030 is assembled on the steering body 1010. With the steering motor 1030 fixed on the steering body 1010, it causes the moving rack 1020 to move in the forward and backward direction.

[0896] A motor mounting part 1013 for fixing the steering motor 1030 is arranged in the steering body 1010. In this embodiment, the steering motor 1030 is fixed to the steering body 1010 by a fastening unit (not shown).

[0897] The motor mounting portion 1013 protrudes from the steering body 1010 toward the steering motor 1030. The motor mounting portion 1013 is disposed in two positions. The movable rack 1020 is arranged between the motor mounting portions 1013.

[0898] The motor mounting portion 1013 protrudes from the steering body 1010 and ensures mounting space for the movable rack 1020. The rack guide 1012 is arranged between the motor mounting portions 1013. The motor mounting portion 1013 located on one side is referred to as the first motor mounting portion, and the motor mounting portion 1013 located on the other side is referred to as the second motor mounting portion. The interval M1 between the first motor mounting portion and the second motor mounting portion is formed to be larger than the height M2 of the movable rack 1020.

[0899] The steering body 1010 is provided with a connecting portion 1016 for engaging with the steering base 1070. The connecting portion 1016 is formed along the front-rear direction. Since the first base mounting portion 1076 and the second base mounting portion 1077 are formed in the form of protruding pillars, the connecting portion 1016 is formed in the form of a corresponding groove.

[0900] The number of connecting portions 1016 and the number of first base mounting portions 1076 are respectively arranged in two positions.

[0901] The joint 1016 of the steering body 1010 disposed in the first steering assembly 1001 is defined as the first joint 1016a and the first joint 1016b. The joint (not shown) of the steering body 1010 disposed in the second steering assembly 1002 is defined as the second joint (not shown) and the second joint (not shown).

[0902] The connecting portion 1016 is positioned further forward than the motor fixing portion 1013 or the rack guide 1012. The rack guide 1012 is arranged between the first connecting portion 1016a and the first connecting portion 1016b.

[0903] The steering gear 1040 is a pinion. The steering gear 1040 is coupled to the motor shaft 1031.

[0904] The movable rack 1020 moves in the forward and backward direction 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.

[0905] The moving rack 1020 adjusts the moving distance according to the number of revolutions of the steering gear 1040, and determines the moving direction according to the rotation direction of the steering gear 1040.

[0906] The movable rack 1020 includes: a movable rack body 1021; movable rack teeth 1023 disposed on the movable rack body 1021 and arranged along the length direction of the movable rack body 1021; a guide block 1022 disposed on the movable rack body 1021 and assembled with the rack guide 1012 in a relatively movable manner; and a movable rack engagement portion 1024 disposed on the movable rack body 1021 and engaged with a structure on the rear side of the adjustment assembly 3600.

[0907] The guide block 1022, the movable rack tooth 1023, and the adjusting movable rack engagement part 1024 are integrally formed on the movable rack body 1021.

[0908] The movable rack teeth 1023 are formed along the length of the movable rack body 1021. Considering the meshing with the steering gear 1040, the movable rack teeth 1023 are preferably disposed on the upper or lower side of the movable rack body 1021. In this embodiment, the movable rack teeth 1023 are disposed on the lower side of the movable rack body 1021.

[0909] In this embodiment, the overall length of the movable rack body 1021 is 45.7 mm, and the front-to-back length of the movable rack teeth 1023 is 36.7 mm. The movable rack teeth 1023 can move forward or backward by 13.7 mm, and can tilt the steering grille 3450 by a maximum of 12 degrees.

[0910] The guide block 1022 is inserted into the rack guide 1012 for movement. The guide block 1022 and the rack guide 1012 do not jam in the direction of movement, but jam in directions other than the direction of movement.

[0911] The guide block 1022 and the rack guide 1012 are formed with cross sections orthogonal to the direction of movement, and the guide block 1022 is inserted into the rack guide 1012.

[0912] The guide block 1022 has a guide protrusion 1025 formed along the moving direction, and the rack guide 1012 has a guide groove 1015 corresponding to the guide protrusion 1025. The guide groove 1015 and the guide protrusion 1025 can stop in the left-right and up-down directions other than the moving direction (the front-back direction in this embodiment).

[0913] Unlike this embodiment, the guide groove 1015 can be disposed on the guide block 1022, and the guide protrusion 1025 can be disposed on the rack guide 1012.

[0914] <Adjusting the structural components>

[0915] The adjustment components 3600 are respectively disposed in the first steering component 1001 and the second steering component 1002. The structural elements of each adjustment component 3600 are the same.

[0916] When it is necessary to distinguish between the adjustment component 3600 configured in the first steering assembly 1001 and the adjustment component 3600 configured in the second steering assembly 1002, they are distinguished as the first adjustment component 3601 and the second adjustment component 3602. The components constituting the adjustment component 3600 are also distinguished in the same way.

[0917] When the moving rack 1020 moves forward or backward, the adjustment component 3600 corrects the distance and direction between the steering body 1010 and the steering grille 3450.

[0918] The adjustment assembly 3600 is a structural element used to connect the steering grille 3450 and the moving rack 1020.

[0919] When the steering grille 3450 is turned, the relative distance between the steering grille 3450 and the moving rack 1020 changes, and the adjustment assembly 3600 eliminates the changed distance difference. The adjustment assembly 3600 supports the turned steering grille 3450 and maintains its turned state.

[0920] The adjustment component 3600 corrects the relative displacement and relative angle of the steering grille 3450 and the moving rack 1020, and keeps the steering grille 3450 in a steered state.

[0921] In this embodiment, the adjustment component 3600 adjusts the relative displacement and relative angle through a multi-section structure.

[0922] In this embodiment, the steering assembly 1000 further includes a bushing 1080, which is assembled on the back of the steering grille 3450 and assembled with the adjustment assembly 3600. The bushing 1080 is used to connect the first steering assembly 1001 and the second steering assembly 1002.

[0923] The bushing 1080 includes: a bushing body 1082 assembled on the steering grille 3450; a bushing clamping portion 1084 disposed on the bushing body 1082 and clamped to the steering grille 3450; a bushing fastening portion 1086 disposed on the bushing body 1082 and fastened to the steering grille 3450; and a first adjusting joint portion 1088 and a second adjusting joint portion 1089 disposed on the bushing body 1082 and combined with the adjusting assembly 3600.

[0924] In this embodiment, both the first adjustment component 3601 and the second adjustment component 3602 are assembled on the bushing body 1082. Alternatively, the bushing 1080 can be removed, and the first adjustment component 3601 and the second adjustment component 3602 can be directly assembled on the steering grille 3450. In this case, the assembly process becomes complicated due to the first adjustment component 3601 and the second adjustment component 3602.

[0925] In this embodiment, with the first adjustment component 3601 and the second adjustment component 3602 assembled on the bushing 1080, the bushing 1080 is assembled on the steering grille 3450. In this case, regardless of the steering grille 3450, the first adjustment component 3601, the second adjustment component 3602, and the bushing 1080 can be prepared for assembly.

[0926] By assembling the bushing 1080, which houses the first adjustment assembly 3601 and the second adjustment assembly 3602, onto the steering grille 3450, assembly is simplified. In particular, with the structure described above, when the steering grille 3450 needs to be replaced, the adjustment assembly 3600 does not need to be disassembled, and can be reused directly in its assembled state.

[0927] The adjustment assembly 3600 includes: a first ball joint 3610, coupled to the moving rack engagement portion 1024 of the moving rack 1020; a second ball joint 3620, coupled to the adjustment engagement portions 1088 and 1089 of the bushing 1080; a first ball cap 3630, disposed between the first ball joint 3610 and the second ball joint 3620, surrounding a portion of the outer side of the first ball joint 3610, and capable of relative rotation with the first ball joint 3610; a second ball cap 3640, disposed between the first ball cap 3630 and the second ball joint 3620, surrounding a portion of the outer side of the second ball joint 3620, and capable of relative rotation with the second ball joint 3620; and an elastic member 3. 650, disposed between the first ball cap 3630 and the second ball cap 3640, provides elasticity to the first ball cap 3630 and the second ball cap 3640, causing the first ball cap 3630 to be tightly attached to the first ball hinge 3610 and the second ball cap 3640 to be tightly attached to the second ball hinge 3620; adjusting housing 3660, 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 housed inside the adjusting housing 3660, the adjusting coupling parts 1088 and 1089 are inserted into the adjusting housing 3660 on the forward side, and the moving rack coupling part 1024 is inserted into the adjusting housing 3660 on the rearward side.

[0928] Because the structural elements of the adjustment assembly 3600 rotate or move relative to each other, friction may occur, resulting in operating noise. Therefore, the structural elements of the adjustment assembly 3600 are preferably coated with a lubricant such as grease.

[0929] The elastic member 3650 is a coil spring. Various types of elastic members, different from those in this embodiment, can be used. The coil spring is disposed between the first cap 3630 and the second cap 3640, and can provide elasticity when clamped between the first cap 3630 and the second cap 3640. The coil spring helps maintain a positive position between the first cap 3630 and the second cap 3640.

[0930] In particular, when the spring force is strong, excessive friction may occur between the ball caps 3630 and 3640 and the ball hinges 3610 and 3620, which may cause wear and operating noise. Lubricant may be applied between the ball caps 3630 and 3640 and the ball hinges 3610 and 3620.

[0931] The first ball joint 3610 and the second ball joint 3620 perform articulation. Relative rotation may occur between the first ball joint 3610 and the second ball joint 3620.

[0932] The first ball hinge 3610 is generally spherical. The first ball hinge 3610 is engaged with the moving rack engagement portion 1024 of the moving rack 1020.

[0933] The first ball hinge 3610 is fixed to the movable rack engagement portion 1024 by a fastening member 3612. The fastening member 3612 passes through the first ball hinge 3610 in the front-back direction.

[0934] The first ball hinge 3610 has a first groove 3611 and a second groove 3613 for mounting the fastening member 3612, and the first groove 3611 and the second groove 3613 are recessed in the front-back direction.

[0935] The first groove 3611 and the second groove 3613 have the same structure. In this embodiment, a 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 outward from the outer side of the first ball hinge 3610.

[0936] A fastening hole (not shown) is formed, which connects to the first groove 3611 and passes through the first ball hinge 3610. The fastening hole is formed along the front-rear direction. The second groove 3613 is formed recessed from the rear to the front, and the movable rack engagement portion 1024 is inserted into the second groove 3613.

[0937] The fastening member 3612 passes through the first ball hinge 3610 and is fastened to the movable rack engagement portion 1024.

[0938] The second ball hinge 3620 has the same structure as the first ball hinge 3610.

[0939] The second ball hinge 3620 has a first groove 3621 and a second groove 3623 for mounting the fastening member 3622, the first groove 3621 and the second groove 3623 being recessed in the front-back direction.

[0940] 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 outward from the outer side of the second ball hinge 3620.

[0941] A fastening hole (not shown) is formed, connecting to the first groove 3621 and passing through the second ball joint 3620. The fastening hole is formed along the front-rear direction. The second groove 3623 is formed recessed from the rear to the front, and the first adjustment joint 1088 or the second adjustment joint 1089 is inserted into the second groove 3623. The fastening member 3622 passes through the second ball joint 3620 and is fastened to the first adjustment joint 1088 or the second adjustment joint 1089.

[0942] The first ball cap 3630 covers the first groove 3611 of the first ball hinge 3610 and surrounds the outer side of the first ball hinge 3610. The first ball cap 3630 surrounds the outer side of the first ball hinge 3610 in the front direction.

[0943] The first ball cap 3630 includes: a first ball cap groove 3631, which is recessed into the outer side of the first ball hinge 3610; and a first ball cap protrusion 3633, which is clamped into the elastic member 3650.

[0944] The first ball joint 3610 is inserted into the first ball cap groove 3631, which minimizes friction between the ball joint 3610 and the first ball cap groove 3631. The first ball joint 3610 can rotate while being tightly fitted against the first ball cap groove 3631.

[0945] The first ball cap protrusion 3633 protrudes toward the elastic member 3650. In this embodiment, the first ball cap protrusion 3633 is arranged along the front-rear direction and protrudes toward the front side (steering grille side).

[0946] The second ball cap 3640 is the same structural element as the first ball cap 3630, but their orientations are opposite to each other.

[0947] The second ball cap 3640 covers the first groove 3621 of the second ball hinge 3620 and surrounds the outer side of the second ball hinge 3620. The second ball cap 3640 surrounds the outer side of the second ball hinge 3620 in the back direction.

[0948] The second ball cap 3640 includes: a second ball cap groove 3641, which is recessed into the outer side of the second ball hinge 3620; and a second ball cap protrusion 3643, which is clamped into the elastic member 3650.

[0949] The second ball joint 3620 is inserted into the second ball joint groove 3641, which minimizes friction between the ball joint 3620 and the groove. The second ball joint 3620 can rotate while being tightly fitted into the second ball joint groove 3641.

[0950] The second ball cap protrusion 3643 protrudes toward the elastic member 3650. In this embodiment, the second ball cap protrusion 3643 is arranged along the front-rear direction and protrudes rearward (towards the moving rack).

[0951] The first cap protrusion 3633 and the second cap protrusion 3643 are arranged in a row and protrude toward each other. In this embodiment, they are arranged along the front-back direction.

[0952] The first cap groove 3631 and the second cap groove 3641 are arranged in opposite directions. For example, when the first cap groove 3631 is arranged facing the rear, the second cap groove 3641 is arranged facing the front.

[0953] The adjustment housing 3660 houses 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.

[0954] A first insertion port 3673 is formed on the rear side of the adjusting housing 3660 for the moving rack engagement portion 1024 to pass through, and the moving rack engagement portion 1024 is inserted into the rear side of the adjusting housing 3660 through the first insertion port 3673.

[0955] A second insertion port 3683 is provided on the front side of the adjustment housing 3660 for the first adjustment joint 1088 or the second adjustment joint 1089 to pass through, and the first adjustment joint 1088 or the second adjustment joint 1089 is inserted into the front side of the adjustment housing 3660 through the second insertion port 3683.

[0956] In this embodiment, the adjustment housing 3660 is composed of a first adjustment housing 3670 and a second adjustment housing 3680.

[0957] By assembling the first adjustment housing 3670 and the second adjustment 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 stored inside.

[0958] The first adjustment housing 3670 includes: a first adjustment housing body 3672, in which a space AS1 is formed; a first insertion port 3673, formed on the rear side of the first adjustment housing body 3672 (on the side of the moving rack engagement portion 1024 in this embodiment), and connected to the space AS1; and a first opening surface 3671, formed on the front side of the first adjustment housing body 3672 (on the side of the steering grille in this embodiment), and connected to the space AS1.

[0959] The second adjustment housing 3680 includes: a second adjustment housing body 3682, in which a space AS2 is formed; a second insertion port 3683, formed on the front side of the second adjustment housing body 3682 (the steering grille side in this embodiment), and connected to the space AS2; and a second opening surface 3681, formed on the rear side of the second adjustment housing body 3682 (the movable rack engagement portion 1024 in this embodiment), and connected to the space AS2.

[0960] In this embodiment, the first adjustment housing 3670 and the second adjustment housing 3680 are joined by screws, for which one of them has an internal thread 3685 and the other has an external thread 3675.

[0961] In this embodiment, an internal thread 3685 is formed on the inner side of the second adjusting housing body 3682, and an external thread 3675 is formed on the outer side of the first adjusting housing body 3672.

[0962] A first ball hinge 3610 and a second ball hinge 3620 are arranged inside the adjusting housing 3660, and the first ball hinge 3610 and the second ball hinge 3620 can rotate respectively.

[0963] The first ball hinge 3610 can rotate the steering grille 3450, and the second ball hinge 3620 can rotate the steering base 1070.

[0964] The movable rack engagement portion 1024, which is coupled with the first ball hinge 3610, can rotate within a predetermined range in the first insertion port 3673. The adjusting engagement portions 1088 and 1089, which are coupled with the second ball hinge 3620, can rotate within a predetermined range in the second insertion port 3683.

[0965] Since the first ball hinge 3610 and the second ball hinge 3620 can rotate independently of each other, they can correspond to the tilt of the steering grille 3450.

[0966] The long-range fan assembly 400 provides a protruding state via a front exhaust outlet 201 that projects further forward than the front surface 200a of the door assembly 200. In this protruding state, the steering grille 3450 is oriented.

[0967] When in the protruding state, the front end 3452a of the steering grille 3450 protrudes further than the front surface 200a of the door assembly 200, and the front end 3452a of the steering grille 3450 and the front surface 200a of the door assembly 200 form a protrusion length P. That is, the protrusion length P can be half the thickness of the steering grille 3450 in the longitudinal direction.

[0968] When in the protruding state, half of the outer side 3451 of the steering grille 3450 is located outside the front outlet 201, and the other half is located inside the front outlet 201.

[0969] In particular, when in the protruding state, the outermost 3451a of the outer surface 3451 of the steering grille 3450 is preferably arranged on the same line as the front outlet 201 or the front surface 200a of the door assembly 200.

[0970] When in the protruding state, the connector assembly 1100 is preferably positioned at the front outlet 201. More precisely, when in the protruding state, the cross shaft 1030 preferably faces the front and is positioned on the same line as the front surface 200a of the door assembly 200.

[0971] When viewed from the front, the first steering component 1001 is disposed on the upper side of the central axis C1, and the second steering component 1002 is disposed on the left side of the central axis C1.

[0972] When viewed from the front, the first steering assembly 1001 and the second steering assembly 1002 are configured at an angle of 90 degrees to the central axis C1.

[0973] The arrangement described above is intended to minimize the operation of the first steering assembly 1001 or the second steering assembly 1002 when steering the steering grille 3450.

[0974] The initial position is defined as the midpoint between the moving rack 1020 of the steering assembly and the maximum forward and maximum reverse states. Each moving rack 1020 of the first steering assembly 1001 or the second steering assembly 1002 is in its initial position when in the convex state.

[0975] In this embodiment, the steering angle of the steering grille 3450 is set to 0 degrees to 15 degrees.

[0976] The state in which the front of the steering grille 3450 (in this embodiment, the steering cover 3454) is orthogonal to the central axis C1 or parallel to the front surface 200a of the door assembly 200 is defined as the steering angle 0.

[0977] When the moving rack 1020 is in a state of maximum forward or rearward movement, it forms a steering angle of 15 degrees.

[0978] Taking the first steering assembly 1001 as an example, when the moving rack 1020 of the first steering assembly 1001 moves to its maximum rearward position, the upper end of the steering grille 3450 turns rearward, and the steering grille 3450 faces upward. At this time, the steering cover 3454 of the steering grille 3450 forms a 15-degree angle with the central axis C1. The steering angle of the steering grille 3450 can be controlled according to the moving distance of the moving rack 1020.

[0979] The relationship between the steering direction of the steering grille 3450, the moving rack 1020 of the first steering assembly 1001, and the moving rack 1020 of the second steering assembly 1002 is as follows.

[0980] Table 1

[0981] Moving rack of the first steering component Moving rack of the second steering component Left initial position Back right initial position go ahead upward Back initial position downward go ahead initial position Top left Back Back Bottom left go ahead Back Top right Back go ahead Down right go ahead go ahead

[0982] When the steering grille 3450 is turned to the left about the central axis C1, in this embodiment, only the second steering assembly 1002 is operated. The moving rack 1020 of the first steering assembly 1001 is in the initial position, and the moving rack 1020 of the second steering assembly 1002 is retracted. In this case, the steering grille 3450 rotates to the left about the joint assembly 1100.

[0983] In this embodiment, when the steering grille 3450 is turned to the right relative to the central axis C1, only the second steering assembly 1002 is operated.

[0984] The moving rack 1020 of the first steering assembly 1001 is in its initial position, and the moving rack 1020 of the second steering assembly 1002 moves forward. In this case, the steering grille 3450 rotates to the right with the joint assembly 1100 as the center.

[0985] In this embodiment, when the steering grille 3450 is turned upward relative to the central axis C1, only the first steering assembly 1001 is operated.

[0986] In the convex state, the moving rack 1020 of the first steering assembly 1001 retracts, while the moving rack 1020 of the second steering assembly 1002 remains in its initial position. In this state, the steering grille 3450 rotates upwards with the connector assembly 1100 as its center.

[0987] In this embodiment, when the steering grille 3450 is turned downward relative to the central axis C1, only the first steering assembly 1001 is operated.

[0988] In the convex state, the moving rack 1020 of the first steering assembly 1001 moves forward, while the moving rack 1020 of the second steering assembly 1002 is in its initial position. In this case, the steering grille 3450 rotates downward about the joint assembly 1100.

[0989] That is, when the steering grille 3450 is turned upward, downward, leftward or rightward relative to the central axis C1, in this embodiment, only one of the first steering assembly 1001 or the second steering assembly 1002 is operated.

[0990] Next, when the steering grille 3450 is turned diagonally relative to the central axis C1, both the first steering assembly 1001 and the second steering assembly 1002 are operated.

[0991] For example, when the steering grille 3450 is turned diagonally to the lower left about the central axis C1, in the convex state, the moving rack 1020 of the first steering assembly 1001 moves forward, and the moving rack 1020 of the second steering assembly 1002 moves backward. In this case, the steering grille 3450 rotates to the lower left about the joint assembly 1100.

[0992] When the steering grille 3450 is turned diagonally to the upper right about the central axis C1, the moving rack 1020 of the first steering assembly 1001 moves backward and the moving rack 1020 of the second steering assembly 1002 moves forward.

[0993] Although not illustrated, when the steering grille 3450 is turned diagonally to the upper left about the central axis C1, the moving rack 1020 of the first steering assembly 1001 moves backward, and the moving rack 1020 of the second steering assembly 1002 moves backward.

[0994] Although not illustrated, when the steering grille 3450 is turned diagonally to the lower right about the central axis C1, the moving rack 1020 of the first steering assembly 1001 moves forward, and the moving rack 1020 of the second steering assembly 1002 moves forward.

[0995] Figures 6 to 11 This illustrates the situation where the moving rack 1020 of the first steering assembly 1001 or the moving rack 1020 of the second steering assembly 1002 is moved to its maximum extent.

[0996] The degree of steering can be adjusted by adjusting the forward or backward distance of each moving rack 1020.

[0997] At the same time, the steering component 1000 of this embodiment will immediately perform steering when switching from each steering state to any other steering state.

[0998] From Figure 6 The left turn has been changed to Figure 11 When the steering is turned in the upper right diagonal direction, the moving rack 1020 of the first steering component 1001 moves backward from the initial position, and the moving rack of the second steering component 1002 moves forward from the backward position.

[0999] As described above, the steering assembly 1000 of this embodiment has the advantage of being able to immediately change the steering grille 3450 from the current steering direction to the target steering direction.

[1000] Because the steering grille 3450 can change direction immediately, it can provide direct airflow to the target area even if the target area inside the room changes in real time.

[1001] For example, by using a camera module to confirm the location of people indoors in real time, direct wind can be provided to people indoors even if they move around indoors when the direct wind tracking mode is selected.

[1002] Conversely, when the direct wind avoidance mode is selected, it can provide direct wind to the location of people indoors in areas where there is a large temperature difference between the target temperature and the indoor temperature.

[1003] <Protruding State and Turning State>

[1004] In this embodiment, in order to provide the protruding state, the forward distance of the fan housing assembly 3400 based on the actuator 3470 is 80 mm.

[1005] When in the protruding state, the front end 3450a of the steering grille 3450 protrudes further forward than the front surface 200a of the front panel 210. In this embodiment, the length Q of the protrusion is 30 mm.

[1006] The front surfaces of the door assembly 200 and the housing assembly 100 need to be separated by a predetermined interval (2 mm in this embodiment). Since the fan housing assembly 3400 needs to be located at a predetermined distance further rearward than the front surface of the housing assembly 100, the front-rear thickness of the door assembly 200 is substantially within 298 mm.

[1007] When in the protruding state, with the front-to-back direction as a reference, the steering grille 3450 is preferably located on the front surface 200a. Therefore, the front-to-back length of the outer side surface 3451 of the steering grille 3450 can be 60 mm. The length of the outer side surface 3451 of the steering grille 3450 is 68 mm, and the radius of curvature of the outer side surface 3451 is 152.5°. When viewed from a side cross-section, the outer side surface of the steering grille 3450 can be formed as a part of a concentric circle centered on the radius of curvature.

[1008] The radius of curvature of the outer surface 3451 is used to prevent interference with the structure of the door assembly 200 when the steering grille 3450 rotates up, down, left, right, and diagonally.

[1009] The distance D1 between the outer side of the steering grille 3450 and the outer edge 201a of the front outlet 201 can be formed to be more than 2 mm and less than 5 mm. In this embodiment, it is formed to be 4 mm. Due to the influence of design tolerances or assembly tolerances, when the distance D1 is short, interference may occur with the structure of the door assembly 200 when the steering grille 3450 is turning.

[1010] The angle K of the front end 3450a of the steering grille 3450 is formed in a manner toward the central axis C1, and the angle K of the front end 3450a is formed to be 8 degrees. The angle of the rear end 3450b of the steering grille 3450 is also formed to be 8 degrees, and is formed in a manner toward the central axis C1.

[1011] In this embodiment, the maximum steering angle A1 of the steering grille 3450 is 12 degrees.

[1012] When the steering grille 3450 is turned to its maximum extent, the rear end 3450b of the steering grille 3450 is located within the door assembly 200. That is, even when the steering grille 3450 is turned to its maximum extent, the rear end 3450b of the steering grille 3450 will be located within the front outlet 201 and will not protrude outward from the front surface 200a.

[1013] By steering as described above, leakage of expelled air between the rear end 3450b of the steering grille 3450 and the edge 201a of the front outlet 201 can be prevented. When the rear end 3450b of the steering grille 3450 protrudes outward from the front surface 200a, condensation may occur at the outer edge of the front outlet 201 due to the expelled cold air.

[1014] Furthermore, the extension line X6 of the bushing 312 of the fan 3420 is configured toward the steering housing 3452 of the steering grille 3450, specifically toward the inner side of the steering housing 3452. This is to prevent air expelled from the fan 3420 from leaking to the outside of the steering housing 3452 and to improve air expulsion efficiency.

[1015] When in the protruding state, the extension line X6 of the bushing 312 can be configured to face the edge 201a of the front outlet 201.

[1016] The diameter x5 of the front outlet 201 is larger than the diameter x4 of the steering grille 3450. The outer side 3451 of the steering grille 3450 and the edge 201a of the front outlet 201 are separated by a size D1. The outer side 3451 of the steering grille 3450 and the outer fan housing 3432 are separated by a size P.

[1017] The diameter X3 of the protective cover 314 is greater than the diameter X2 of the bushing 312, but smaller than the diameter X4 of the steering grille 3450.

[1018] In this embodiment, the diameter of the steering base 1070 is the same as the diameter x2 of the bushing 312. The diameter of the steering base 1070 is larger than the diameter x1 of the steering cover 3454 and smaller than the diameter x3 of the protective cover 314.

[1019] The center of the steering grille 3450, steering base 1070, bushing 312, cover 314, and fan housing is arranged on the central axis C1.

[1020] Figure 55 This is an exploded perspective view of the fan housing assembly according to the second embodiment of the present invention. Figure 56 yes Figure 55 An enlarged view of the steering assembly shown.

[1021] The steering assembly 1000' is disposed between the steering grille 450 and the fan housing 430. The steering assembly 1000' is positioned to minimize interference with the exhaust air.

[1022] In this embodiment, the steering assembly 1000' is positioned in front of the inner fan housing 434 to minimize its interference with the exhaust air. In particular, the steering assembly 1000' is located in front of the fan motor 440.

[1023] The steering assembly 1000' provides a structure that allows the steering grille 450 to be unrestricted by tilt direction or sequence. That is, the steering assembly 1000' can tilt left or right after tilting in the vertical direction. Furthermore, the steering assembly 1000' can tilt vertically after tilting left or right.

[1024] Since the steering assembly 1000' of the present invention is not restricted by the direction of tilt, it can immediately achieve the steering of the steering grille 450.

[1025] The steering assembly 1000' includes: a connector 1050, the back of which is fixed to the side of the fan housing 430, and the front of which is assembled with the steering grille 450 in an tiltable manner; a first steering unit 1001', fixed to the side of the fan housing 430 or the side of the steering grille 450, and engaged with the steering grille 450 in a rotatable manner, moving along the front-back direction to tilt the steering grille 450 along a first direction; and a second steering unit 1002', fixed to the side of the fan housing 430 or the side of the steering grille 450, and engaged with the steering grille 450 in a rotatable manner, moving along the front-back direction to tilt the steering grille 450 along a second direction.

[1026] The connector 1050 is disposed on the shaft center C1. In this embodiment, the connector 1050 is a ball joint. A universal joint may be used instead of a ball joint, unlike in this embodiment.

[1027] The connector 1050 can be fixed to the fan housing 320 or to the fan motor 440.

[1028] In this embodiment, the connector 1050 is installed on the fan mounting member 442 that fixes the fan motor 440 to the fan housing 430.

[1029] The connector 1050 is configured to face forward and is located on the axis center C1 of the steering grille 450 and the axis center M1 of the fan motor 440.

[1030] The connector 1050 can be directly assembled onto the back of the steering grille 450. In this embodiment, a steering base 1070 is also included, which is disposed between the steering grille 450 and the connector 1050.

[1031] The steering base 1070 is attached to the back of the steering grille 450. The steering base 1070 and the steering grille 450 are tilted together in the up, down, left, right or diagonal direction.

[1032] The steering base 1070 covers the open front surface of the inner fan housing 434. The steering base 1070 allows the fan motor 440 to be concealed inside the inner fan housing 434.

[1033] The connector 1050 is assembled to the back of the steering base 1070 in an tiltable manner. The steering base 1070 and the connector 1050 are joined by a ball joint, allowing the steering base 1070 to rotate freely.

[1034] When facing forward, the steering grille 450 can be tilted in the vertical, horizontal, or diagonal direction. The tilting direction of the steering grille 450 is unrestricted when facing forward.

[1035] In this embodiment, the first direction is set as a vertical direction, and the second direction is set as a horizontal direction. Unlike this embodiment, the first and second directions can be arbitrarily changed. In this embodiment, the first and second directions form a 90-degree angle.

[1036] The first steering unit 1001' pushes or pulls the steering grille 450, and can tilt the steering grille 450 in the vertical direction with the joint 1050 as a reference.

[1037] The second steering unit 1002' pushes or pulls the steering grille 450, and can tilt the steering grille 450 in the left-right direction with reference to the joint 1050.

[1038] The combination of the first steering unit 1001' and the second steering unit 1002' can cause the steering grille 450 to tilt diagonally with reference to the joint 1050.

[1039] The first steering unit 1001' and the second steering unit 1002' are composed of the same components. The structural elements of the first steering unit 1001' will be described as an example.

[1040] The first steering unit 1001' includes: a bracket 1010 fixed to the side of the fan housing 430 or the steering grille 450; a movable rack 1020 engaged with the bracket 1010 in a relatively movable manner; a guide 1012 formed on the bracket 1010, assembled with the movable rack 1020 in a relatively movable manner, and guiding the moving direction of the movable rack 1020; a steering motor 1030 providing driving force to the movable rack 1020 to enable it to move; a steering gear 1040 engaged with the motor shaft 1031 of the steering motor 1030 for rotation and meshing with the movable rack 1020; and an adjustment assembly 1060 combining the movable rack 1020 and the discharge grille 450, adjusting the tilt angle of the discharge grille 450 when the movable rack 1020 moves.

[1041] The bracket 1010 can be fixed to the fan housing 430 or the steering grille 450. In this embodiment, the bracket 1010 is fixed to the steering base 1070 disposed on the side of the steering grille 450. The bracket 1010 is attached to the back of the steering base 1070, and the adjustment assembly 1060 is disposed through the steering base 1070.

[1042] The steering motor 1030 is arranged on the bracket 1010. When the steering motor 1030 is fixed on the bracket 1010, it causes the moving rack 1020 to move in the forward and backward direction.

[1043] A guide portion 1012 is formed on the bracket 1010 along the front-back direction, and the movable rack 1020 slides along the guide portion 1012.

[1044] The guide portion 1012 is formed as a slit extending in the left-right direction. Unlike this embodiment, the guide portion 1012 may be formed as a groove.

[1045] The movable rack 1020 has an insertion portion 1022 that penetrates the guide portion 1012 and is inserted into it. The insertion portion 1022 is movable along the guide portion 1012. The guide portion 1012 extends relatively long in the front-back direction, and the insertion portion 1022 moves along the guide portion 1012 in the front-back direction.

[1046] The movable rack 1020 has a rack formed along its length and meshes with the steering gear 1040. The movable rack 1020 can move forward or backward along the rotation direction of the steering gear 1040.

[1047] The motor shaft 1031 of the steering motor 1030 is configured to face the bracket 1010. The motor shaft 1031 is configured in the left-right direction. The steering gear 1040 and the moving rack 1020 are arranged between the steering motor 1030 and the bracket 1010.

[1048] The adjustment assembly 1060 is a structural element used to connect the steering grille 450 and the movable rack 1020.

[1049] When the steering grille 450 is tilted, the relative distance between the steering grille 450 and the moving rack 1020 changes, and the adjustment assembly 1060 is arranged to eliminate the changed distance difference.

[1050] The adjustment component 1060 corrects the relative displacement and relative angle of the steering grille 450 and the moving rack 1020, and maintains the tilted state of the steering grille 450.

[1051] In this embodiment, the adjustment component 1060 corrects the relative displacement and relative angle through a multi-section structure.

[1052] The adjustment assembly 1060 includes: a first ball joint pin 1061, whose rear side is coupled to the movable rack 1020, and a first ball hinge 1065 is formed on its front side; a first ball housing 1063, in which the first ball hinge 1065, disposed on the front side of the first ball joint pin 1061, is inserted into the interior of the first ball housing 1063; a second ball joint pin 1062, whose front side is coupled to the steering grille 450, and a second ball hinge 1066 is formed on its rear side; a second ball housing 1064, in which the second ball hinge 1066, disposed on the rear side of the second ball joint pin 1062, is inserted into the interior of the second ball housing 1064 and coupled with the first ball housing 1063; and a hinge rod 1068, disposed between the first ball housing 1063 and the second ball housing 1064, and forming relative rotation with the first ball hinge 1065 and the second ball hinge 1066 respectively.

[1053] The rear side of the first ball joint pin 1061 is fixed to the movable rack 1020. In this embodiment, a first ball joint pin mounting portion 1023 is formed on the front side of the movable rack 1020 for clamping the first ball joint pin 1061.

[1054] A ball-shaped first ball hinge 1065 is disposed in front of the first ball head pin 1061.

[1055] The first ball hinge 1065 is inserted into the first spherical housing 1063. The first ball hinge 1065 can rotate freely relative to the first spherical housing 1063 inside the first spherical housing 1063.

[1056] Similarly, the front side of the second ball joint pin 1062 is fixed to the steering base 1070. A spherical second ball hinge 1066 is disposed behind the second ball joint pin 1062.

[1057] The second ball hinge 1066 is inserted into the second spherical housing 1064. The second ball hinge 1066 can rotate freely relative to the second spherical housing 1064 inside the second spherical housing 1064.

[1058] The first spherical shell 1063 and the second spherical shell 1064 are combined to form a spherical shell. Inside the spherical shell, the first spherical hinge 1065 and the second spherical hinge 1066 are arranged facing each other.

[1059] The hinge rod 1068 is arranged between the first ball hinge 1065 and the second ball hinge 1066. The hinge rod 1068 maintains a minimum distance between the first ball hinge 1065 and the second ball hinge 1066. The hinge rod 1068 reduces friction with the first ball hinge 1065 and the second ball hinge 1066.

[1060] The hinge rod 1068 has a recessed first receiving portion 1068a on the rear side that can accommodate a portion of the first ball hinge 1065, and a recessed second receiving portion 1068b on the front side that can accommodate a portion of the second ball hinge 1066.

[1061] The hinge rod 1068 has two sides that are formed in a mortar shape.

[1062] In this embodiment, the adjustment assembly 1060 passes through the steering base 1070 to connect the movable rack 1020 and the steering grille 450. For this purpose, the steering base 1070 is formed with through holes 1071 and 1072 through which the adjustment assembly 1060 passes.

[1063] The through holes 1071 and 1072 are formed in two ways for the first steering unit 1001' and the second steering unit 1002'.

[1064] The remaining structural elements are the same as in the first embodiment, so detailed descriptions will be omitted.

[1065] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the described embodiments, but can be implemented in various different forms. Those skilled in the art should understand that the present invention can also be implemented in other specific forms without changing the technical concept or essential features of the present invention. Therefore, the embodiments described above are illustrative in all respects and not limiting.

[1066] Explanation of reference numerals in the attached figures

[1067] 100: Enclosure assembly; 200: Door assembly

[1068] 300: Close-range fan assembly; 400: Long-range fan assembly

[1069] 500: Heat exchange assembly; 600: Filter assembly

[1070] 1000: Enclosure assembly; 1100: Panel module

[1071] 1200: Door cover assembly; 1300: Door sliding module

[1072] 1400: Side-moving component; 1500: Display module

[1073] 1600: Door cover moving module; 1700: Door shell moving module

[1074] 1800: Cable guide; 1900: Camera module

[1075] 3400: Fan housing assembly; 3410: Rear fan housing

[1076] 3420: Fan; 3530: Front fan housing

[1077] 3440: Fan motor; 3450: Steering grille

[1078] 3460: Lower guide housing; 3470: Actuator

[1079] 3480: First guide rail; 3490: Second guide rail

[1080] 3510: Air guide; 3520: Upper guide housing

[1081] 3530: First air guide bracket; 3540: Second air guide bracket

[1082] 3600: Adjustment component; 3610: First ball joint

[1083] 3620: Second ball hinge; 3630: First ball cap

[1084] 3640: Second ball cap; 3650: Elastic component

[1085] 3660: Adjust the casing

Claims

1. An indoor unit of an air conditioner, wherein includes: a housing formed with a suction port and a discharge port that communicate an interior and a room; a door cover that opens and closes the discharge port; a fan housing disposed in the interior of the housing, configured with a fan to flow air; a grill disposed at the discharge port side with respect to the fan housing, controls the discharge direction of the air flowed by the fan; and an actuator that provides a driving force to move the fan housing and the grill toward the discharge port, when the discharge port is in a closed state, the door cover is located in front of the grill and the fan housing, after the door cover opens the discharge port, the grill moves straight forward so that the front end of the grill penetrates the discharge port and protrudes more forward than the front surface of the housing.

2. The indoor unit of an air conditioner according to claim 1, wherein the door cover is inserted into the discharge port and provides a surface continuous with the front surface of the housing, thereby closing the discharge port.

3. The indoor unit of an air conditioner according to claim 1, wherein the door cover, after retreating a prescribed distance in a state of closing the discharge port, moves in the up and down direction to open the discharge port.

4. The indoor unit of an air conditioner according to claim 3, wherein the housing includes: a front panel formed with the discharge port; and a cabinet disposed behind the front panel, formed with the suction port, and combined with the front panel to form an interior space, when the door cover opens the discharge port, moves to the rear of the discharge port and moves to the lower side along the interior space of the front panel.

5. The indoor unit of an air conditioner according to claim 4, wherein further includes: a door cover housing located in the interior space of the front panel, formed with a door cover receiving portion that receives the door cover when the door cover retreats; a door cover moving module disposed between the door cover housing and the door cover, moves the door cover in the front and rear direction; and a door housing moving module, in a state where the door cover is received in the door cover receiving portion, moves the door cover housing in the up and down direction along the interior space of the front panel.

6. The indoor unit of an air conditioner according to claim 1, wherein the grill is inclined in a state where the front end of the grill protrudes more forward than the front surface of the housing.

7. The indoor unit of an air conditioner according to claim 6, wherein when the grill is inclined to the maximum, the rear end of the outer side surface of the grill is located at a position more rearward than the front surface of the housing, and the front end of the outer side surface of the grill is located at a position more forward than the discharge port.

8. The indoor unit of an air conditioner according to claim 6, wherein further includes a turning assembly that immediately changes the direction of the grill toward the up side, the down side, the left side, the right side, or any diagonal direction.

9. The indoor unit of an air conditioner according to claim 1, wherein when in a state where the front end of the grill protrudes more forward than the front surface of the housing, the door cover is located below the grill.

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