KR102077571B1 - Fan assembly and air conditioner - Google Patents

Abstract

In the two-way discharge fan assembly, the size of the air discharge port formed in the fan casing is increased to lower the pressure of the discharged air while bending in the rotational direction of the centrifugal fan, thereby discharging it from another fan assembly disposed above the fan casing. A fan assembly is provided that does not interfere with the flow of air that is introduced.
To this end, the fan assembly according to the present invention accommodates a first centrifugal fan, a second centrifugal fan spaced downward from the first centrifugal fan, the first centrifugal fan and the second centrifugal fan. First and second air outlets for discharging the air blown from the first centrifugal fan and the second air discharge port are formed on both sides, respectively, the third air discharge port and the fourth air discharge port for discharging the air blown from the second centrifugal fan Are respectively formed on both sides, wherein the third air outlet is formed directly below the first air outlet, and the fourth air outlet comprises a fan casing formed directly below the second air outlet, the first air The lowest point of the discharge port is located lower than the highest point of the fourth air discharge port.

Description

Fan assembly and air conditioner {FAN ASSEMBLY AND AIR CONDITIONER}

The present invention relates to a fan assembly and an air conditioner including the same, and more particularly, to a fan assembly having a plurality of centrifugal fans and an air conditioner including the same.

Generally, an air conditioner is composed of a compressor, a condenser, an evaporator, and an expander, and uses an air conditioning cycle to supply cold or warm air to a building or a room.

The air conditioner is provided with an air purifying means or a humidifying means, and is provided with a blower for flowing air to suck and discharge the outside air.

The blower includes a fan motor and a blowing fan coupled to the rotation shaft of the fan motor to suck and discharge air while being rotated by the driving of the fan motor.

The blower fan is classified into an axial fan, a centrifugal fan, and a crossflow fan according to the flow direction.

The axial flow fan is formed in a structure in which air is sucked in the rotational axis direction (hereinafter, axial direction) of the fan motor and discharged in the axial direction.

The centrifugal fan has a structure in which air is sucked in the axial direction and discharged in the circumferential direction.

The vortex fan has a structure in which air is sucked in the axial direction and discharged between the axial direction and the radial direction.

On the other hand, in recent years, the structure of the air conditioner in order to increase the air discharge efficiency of the air conditioner as well as to provide a variety of air to the user has been a trend. For example, the air conditioner independently includes a front fan assembly for discharging air to the front and a side fan assembly for discharging air to the side of the air conditioner, so that the front fan assembly can direct air far to the front. The side fan assembly may provide indirect wind to the user.

The front fan assembly is disposed above the side fan assembly in order to send air as far as possible, and a fan such as a circulator is used.

However, if the fan included in the side fan assembly is a centrifugal fan for discharging air in the circumferential direction, such as a sirocco fan, the air discharged to the side of the air conditioner in the side fan assembly is the rotational direction of the centrifugal fan. Is discharged while bending. For example, assuming that the centrifugal fan is rotated clockwise around the rotation axis when the centrifugal fan is viewed from the front in the axial direction, the air discharged to the left side of the centrifugal fan is discharged while bending upward, Air discharged to the right side of the centrifugal fan is discharged while bending downward.

Therefore, if the air discharge port is formed on the left side of the side fan assembly, the air discharged to the left side of the side fan assembly is moved upwards to meet the air discharged from the front fan assembly, the air discharged from the front fan assembly Since it will interfere with the flow of the side fan assembly will form an air outlet on the right.

By the way, when implementing a two-way discharge method (two-way discharge method) with one centrifugal fan, which has a structure in which air discharge ports are formed on the left and right sides of the side fan assembly, respectively, through the air discharge ports formed on the left side of the side fan assembly. Since the discharged air is discharged while bending upward, there is a problem in that the air discharged from the front fan assembly is encountered and the flow of the air discharged from the front fan assembly is disturbed.

The problem to be solved by the present invention is to increase the size of the air discharge port formed in the fan casing in the 2-way discharge fan assembly, by lowering the pressure of the air discharged while bending in the rotational direction of the centrifugal fan, the upper side of the fan casing It is to provide a fan assembly and an air conditioner including the same does not interfere with the flow of air discharged from another fan assembly disposed in the.

Another object of the present invention is to provide a fan assembly and an air conditioner including the same that does not interfere with the flow of air discharged from the other fan assembly by discharging a smaller amount of air than the upper portion of the air discharge port It is.

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

In order to achieve the above object, the fan assembly according to the present invention comprises a first centrifugal fan, a second centrifugal fan disposed to be spaced downward from the first centrifugal fan, the first centrifugal fan and the second centrifugal fan. A first air discharge port and a second air discharge port which are accommodated therein and discharge air blown from the first centrifugal fan, respectively, and are formed at both sides, and a third air discharge hole discharged air blown from the second centrifugal fan; A fourth air outlet is formed at both sides, and the third air outlet is formed directly below the first air outlet, and the fourth air outlet comprises a fan casing formed directly below the second air outlet, The lowest point of the first air outlet is located lower than the highest point of the fourth air outlet.

The fan casing includes a first scroll which surrounds the first centrifugal fan in a circumferential direction, one end of which extends to the first air outlet, and the other end of which extends to the second air outlet, and below the first scroll. The second scroll may be disposed and circumferentially surrounds the second centrifugal fan, one end of which extends to the third air outlet and the other end of which extends to the fourth air outlet.

The first scroll includes a second scroll portion disposed between the first centrifugal fan and the second centrifugal fan, and the second scroll includes the first centrifugal fan and the second centrifugal fan below the second scroll portion. And a third scroll portion disposed between the second scroll portion, a portion forming a lower portion of the first air discharge port is bent downward, and the third scroll portion forming an upper portion of the fourth air discharge port. It can be curved upwards.

The second scroll part has an inner side surface formed in the same shape as the inner side surface of the third scroll portion, and both ends of the third scroll portion refer to a vertical line passing through the center of rotation of the first centrifugal fan and the center of rotation of the second centrifugal fan. 180 degrees can be formed in an inverted shape.

The inner side surface of the second scroll portion extends from the first air discharge port toward the second air discharge port and extends to a vertical line passing through the rotation center of the first centrifugal fan and the rotation center of the second centrifugal fan, and upwards. A first curved portion which is formed convexly, a second curved portion which extends from the first curved portion toward the second air discharge port and extends to the outside of the first centrifugal fan, and is formed concave downward; It may include a flat surface portion formed horizontally extending from the second curved portion to the second air discharge port.

The point where the second curved portion and the flat surface portion meet may be formed as a curved surface inwardly convex.

When viewed from the front in the axial direction, the first centrifugal fan and the second centrifugal fan are rotated clockwise, and the first air outlet and the third air outlet are formed on the left side of the fan casing. The second air outlet and the fourth air outlet may be formed on the right side of the fan casing.

When viewed from the front in the axial direction, the first centrifugal fan and the second centrifugal fan are rotated counterclockwise, and the first air outlet and the third air outlet are formed on the right side of the fan casing. The second air outlet and the fourth air outlet may be formed on the left side of the fan casing.

The apparatus further includes a first discharge vane that controls a direction of the air discharged from the first air discharge port and has a plurality of first discharge ribs disposed up and down parallel to each other, wherein the vertical gaps of the plurality of first discharge ribs It may be wider from top to bottom.

Controlling a direction of air discharged from the second air discharge port, controlling a second discharge vane having a plurality of second discharge ribs arranged in parallel with each other up and down, and controlling the direction of air discharged from the third air discharge port; And a third discharge vane having a plurality of third discharge ribs arranged up and down in parallel with each other, and a plurality of fourth discharge ribs arranged to be parallel to each other up and down, controlling a direction of air discharged from the fourth air discharge port. And a fourth discharge vane having an upper and lower intervals of the plurality of second discharge ribs, an upper and lower intervals of the plurality of third discharge ribs, and an upper and lower intervals of the plurality of fourth discharge ribs. Can be.

An air conditioner according to an embodiment of the present invention includes a first fan assembly for discharging air to both sides and a second fan assembly disposed above the first fan assembly and discharging air to the front. The first fan assembly includes a first centrifugal fan, a second centrifugal fan spaced downward from the first centrifugal fan, the first centrifugal fan, and the second centrifugal fan, and the first centrifugal fan. First and second air outlets for discharging air blown from the fan are respectively formed on both sides, and third and fourth air outlets for discharging air blown from the second centrifugal fan are respectively formed on both sides. And the third air outlet is formed directly below the first air outlet, and the fourth air outlet is formed directly below the second air outlet. The lowest point is located lower than the highest point of the fourth air outlet.

Details of other embodiments are included in the detailed description and drawings.

The fan assembly according to the present invention and the air conditioner including the same, the size of the air discharge port is increased, the amount of air discharged is increased and the pressure is lowered, the second fan assembly that the discharged air is disposed on the upper side of the fan casing There is an effect that does not disturb the flow of air discharged from the front to the front.

In addition, since the upper and lower intervals of the plurality of first discharge ribs provided in the first discharge vane are wider from top to bottom, the amount of air discharged to the lower side is higher than that of the upper portion of the first air discharge port. There is also an effect that does not interfere with the flow of air discharged to the front from the two fan assembly.

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

1 is a perspective view showing an indoor unit of an air conditioner to which a fan assembly is applied according to an embodiment of the present invention;
2 is an exploded perspective view of FIG. 1;
3 is a front view of FIG. 1,
4 is a left side view of FIG. 1;
5 is a right side view of FIG. 1;
6 is a plan view of FIG.
7 is a bottom view of FIG. 1,
8 is a right cross-sectional view of FIG.
FIG. 9 is a front view of the second fan assembly shown in FIG. 2;
10 is a left side view of FIG. 9;
11 is a right side view of FIG. 9;
12 is an enlarged cross-sectional view of the second fan assembly shown in FIG. 8;
13 is a plan sectional view of FIG. 8;
14 is an exploded perspective view of the second fan assembly shown in FIG. 2;
15 is a front view of the guide housing shown in FIG. 14;
16 is a plan view of the guide housing shown in FIG. 14;
17 is a left side view of the guide housing shown in FIG. 14;
FIG. 18 is a view showing a part of the first fan assembly shown in FIG.
19 is a view showing the flow of air discharged during the operation of the centrifugal fan shown in FIG.
20 is a front sectional view of the first fan assembly shown in FIG. 18;
FIG. 21 is a sectional front view illustrating the first discharge vane shown in FIG. 4.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, a fan assembly and an air conditioner including the same according to an embodiment of the present invention will be described with reference to the drawings.

1 is a perspective view showing an indoor unit of an air conditioner to which a fan assembly is applied according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of FIG. 1, FIG. 3 is a front view of FIG. 1, and FIG. 4 is a left side view of FIG. 1. 5 is a right side view of FIG. 1, FIG. 6 is a plan view of FIG. 1, FIG. 7 is a bottom view of FIG. 1, and FIG. 8 is a right sectional view of FIG. 3.

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

The outdoor unit includes a compressor (not shown) for compressing a refrigerant, an outdoor heat exchanger (not shown) for receiving and condensing refrigerant from the compressor, an outdoor fan (not shown) for supplying air to the outdoor heat exchanger, and the indoor unit. And an accumulator (not shown) for providing only the gaseous refrigerant to the compressor after receiving the refrigerant discharged at 10.

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

The indoor unit 10 has a front opening, a cabinet assembly 100 having a suction port 101 formed at a rear surface thereof, a cabinet assembly 100 assembled at a front side of the opened cabinet assembly 100, and an inner space of the cabinet assembly 100. A door assembly 200 for opening and closing S), fan assemblies 300 and 400 disposed inside the cabinet assembly 100 and discharging air in the internal space S to the room, and the fan assembly A heat exchange assembly 500 disposed between the 300 and 400 and the cabinet assembly 100, the heat exchange assembly 500 for heat-exchanging the sucked indoor air and the refrigerant, and the cabinet assembly 100 arranged in the cabinet assembly 100. A humidifying assembly 800 for providing moisture to the internal space S, a filter assembly 600 for filtering air flowing into the internal space S and disposed on the rear surface of the cabinet assembly 100, and the cabinet The filter word is disposed on the rear surface of the assembly 100. It moves up and down along the assembly 600, and includes a moving cleaner 700 to separate and collect the foreign matter of the filter assembly 600.

The indoor unit 10 sucks air through the suction port 101 formed on the rear surface of the cabinet assembly 100.

The fan assemblies 300 and 400 are composed of a first fan assembly 300 and a second fan assembly 400. The heat exchange assembly 500 is disposed behind the first fan assembly 300 and the second fan assembly 400.

Since air is sucked through the rear surface of the cabinet assembly 100, the heat exchange assembly 500 is disposed perpendicular to the ground.

The air sucked through the cabinet assembly 100 flows to the first fan assembly 300 and the second fan assembly 400 after passing through the heat exchange assembly 500 orthogonally in this embodiment.

The heat exchange assembly 500 is manufactured to have a length corresponding to the height of the first fan assembly 300 and the second fan assembly 400.

The first fan assembly 300 discharges air in the lateral direction of the cabinet assembly 100. The first fan assembly 300 provides indirect wind to the user.

The second fan assembly 400 is disposed above the cabinet assembly 100 and discharges air in a forward direction of the cabinet assembly 100. The second fan assembly 400 provides a direct wind to the user. In addition, the second fan assembly 400 improves circulation of indoor air by discharging air to a distant place in the indoor space.

In particular, the second fan assembly 400 may control the discharge direction of air in the up, down, left, right or diagonal directions.

The door assembly 200 may be coupled to the front surface of the cabinet assembly 100 and may slide in the left and right directions.

The door assembly 200 may be moved in one of left and right directions to open the internal space S. FIG. In addition, the door assembly 200 may be moved in one of left or right directions to open only a part of the inner space S. FIG.

In this embodiment, the door assembly 200 is opened and closed in two stages.

The first stage opening and closing of the door assembly 200 is partially opened, and is for supplying water to the humidifying assembly 800, and exposes only an area to which the water tank 810 of the humidifying assembly 800 is exposed.

The second stage opening and closing of the door assembly 200 is opened to the maximum, for installation and repair. To this end, the door assembly 200 includes a door stopper structure for limiting the opening and closing of the two stages.

The filter assembly 600 is disposed at the rear of the cabinet assembly 100. The filter assembly 600 may be rotated to the side of the cabinet assembly 100 in a state in which the filter assembly 600 is disposed on the rear surface of the cabinet assembly 100. The user may separate only the filter from the filter assembly 600 moved to the side of the cabinet assembly 100.

In the present embodiment, the filter assembly 600 is composed of two parts, each of which may be rotated left or right.

The moving cleaner 700 is an apparatus for cleaning the filter assembly 600. The moving cleaner 700 may clean the filter assembly 600 while moving in the vertical direction. The moving cleaner 700 may inhale air while moving to separate the foreign matter attached to the filter assembly 600, and the separated foreign matter is stored therein.

The moving cleaner 700 is installed in a structure that is not indirect during the rotation of the filter assembly 600.

The humidifying assembly 800 may provide moisture to the internal space S of the cabinet assembly 100, and the provided moisture may be discharged into the room through the fan assembly. The humidifying assembly 800 includes a detachable water tank 810.

In this embodiment, the humidifying assembly 800 is disposed inside the cabinet assembly 100. The heat exchange assembly 500 and the fan assembly 300 and 400 are disposed above the humidifying assembly 800.

Hereinafter, each configuration of the indoor unit according to the present embodiment will be described in more detail.

The first fan assembly 300 is configured to discharge air laterally with respect to the cabinet assembly 100. The first fan assembly 300 provides indirect wind to the user. The first fan assembly 300 is disposed in front of the heat exchange assembly 500.

The first fan assembly 300 is provided with a plurality of blowers 310 are stacked in the vertical direction. In the present embodiment, three blowers 310 are provided and stacked in the vertical direction.

The blower 310 sucks air in the axial direction and discharges the air in a direction inclined forward with respect to the axial direction.

The blower 310 sucks the air from the rear and discharges the air inclined between the front and the side.

The first fan assembly 300 is formed by opening the front and the rear, the fan casing 320 is coupled to the cabinet assembly 100, is coupled to the fan casing 320, the fan casing 320 It includes a plurality of blowers 310 installed in.

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

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

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

In this embodiment, a part of the side surface of the pan casing 320 is exposed to the outside. Discharge vanes 303 are disposed on both side surfaces of the fan casing 320 exposed to the outside. The discharge vane 303 is composed of a plurality of discharge ribs 305 elongated in the axial direction. The plurality of discharge ribs 305 are spaced apart from each other in parallel in the vertical direction, and a side discharge port 301 is formed between the plurality of discharge ribs 305 spaced in the vertical direction. The discharge vane 303 is fixed to the side surface of the pan casing 320 to control the discharge direction of air. The side discharge port 301 is disposed on the left and right of the pan casing 320, respectively.

The blower 310 is provided in plural and stacked in a line with respect to the vertical direction. Three blowers 310 may be provided and stacked in a line with respect to the vertical direction. The number of blowers 310 is not limited thereto.

Three discharge vanes 303 are arranged in a row on the left side of the pan casing 320, and three are arranged in a row on the right side of the pan casing 320. That is, the discharge vane 303 is the first discharge vane 303A disposed on the uppermost side from the left side of the pan casing 320 and the second discharge vane 303B disposed on the uppermost side on the right side of the pan casing 320. And a third discharge vane 303C disposed directly below the first discharge vane 303A on the left side of the pan casing 320, and directly below the second discharge vane 303A on the right side of the pan casing 320. The fourth discharge vane 303D disposed in the upper side, the fifth discharge vane 303E disposed directly below the third discharge vane 303C from the left side of the pan casing 320, and the right side of the pan casing 320. The sixth discharge vane 303F is disposed directly below the fourth discharge vane 303D.

The first discharge vane 303A controls the direction of air discharged from the first air discharge port 326A, which will be described later, and the second discharge vane 303B controls the direction of air discharged from the second air discharge port 327A, which will be described later. The third discharge vane 303C controls the direction of the air discharged from the third air discharge port 326B to be described later, and the fourth discharge vane 303D discharges from the fourth air discharge port 327B to be described later. The fifth discharge vane 303E controls the direction of the air discharged from the fifth air discharge port 326C, which will be described later, and the sixth discharge vane 303F controls the direction of the air, which is described later. The direction of air discharged from 327C is controlled.

The first discharge vanes 303A have a plurality of first discharge ribs 305A arranged up and down in parallel with each other, and the second discharge vane 303B have a plurality of second discharge ribs 305B arranged up and down in parallel with each other. ), The third discharge vane 303C has a plurality of third discharge ribs 305C disposed in parallel with each other up and down, and the fourth discharge vane 303D has a plurality of fourth disposed in parallel with each other up and down. The fifth discharge vane 303E has discharge ribs 305D, and the fifth discharge vane 303E is arranged up and down in parallel with each other, and the sixth discharge vane 303F is disposed up and down in parallel with each other. It has a plurality of sixth discharge ribs 305F.

The first discharge rib 305A, the second discharge rib 305B, the third discharge rib 305C, the fourth discharge rib 305D, the fifth discharge rib 305E, and the sixth discharge rib 305F are in the axial direction. It can be formed long. The first discharge rib 305A, the second discharge rib 305B, the third discharge rib 305C, the fourth discharge rib 305D, the fifth discharge rib 305E, and the sixth discharge rib 305F are respectively 5 Can be provided with a dog.

The vertical gaps of the plurality of first discharge ribs 305A may be wider from top to bottom. The vertical gaps of the plurality of second discharge ribs 305B, the vertical gaps of the plurality of third discharge ribs 305C, the vertical gaps of the plurality of fourth discharge ribs 305D, and the plurality of fifth discharge ribs. The vertical intervals 305E, the vertical intervals of the plurality of fifth discharge ribs 305E, and the vertical intervals of the plurality of sixth discharge ribs 305F may be formed at equal intervals.

9 is a front view of the second fan assembly shown in FIG. 2, FIG. 10 is a left side view of FIG. 9, FIG. 11 is a right side view of FIG. 9, FIG. 12 is an enlarged cross-sectional view of the second fan assembly shown in FIG. 8, FIG. 13 is a cross-sectional plan view of FIG. 8, FIG. 14 is an exploded perspective view of the second fan assembly shown in FIG. 2, FIG. 15 is a front view of the guide housing shown in FIG. 14, and FIG. 16 is a view of the guide housing shown in FIG. 14. Top view, FIG. 17 is a left side view of the guide housing shown in FIG. 14.

The second fan assembly 400 is configured to discharge air forward with respect to the cabinet assembly 100. The second fan assembly 400 provides a direct wind to the user.

The second fan assembly 400 is disposed in front of the heat exchange assembly 500. The second fan assembly 400 is stacked on the upper side of the first fan assembly 300.

The second fan assembly 400 discharges air to the front discharge port 401 formed in the door assembly 200. The second fan assembly 400 provides a structure rotatable in the up, down, left, right or diagonal direction. The second fan assembly 400 may improve air circulation by discharging air toward the far side of the indoor space.

The second fan assembly 400 includes a fan base 410 having a fan suction hole 411 through which the air passing through the heat exchange assembly 500 is sucked, and is disposed in front of the fan base 410 and the fan suction hole 411. Fan 420 for discharging the air sucked in the in the direction of the four-flow direction, and disposed in front of the fan base 410, coupled to the fan base 410, the air pressurized by the fan 420 The fan housing 430 and the fan housing 430 installed in the fan housing 430 and connected to the fan 420 and the motor shaft to rotate the fan 420 and the fan housing 430. 430 is located in front of the discharge grill 450 for controlling the discharge direction of the air guided through the fan housing 430, and is coupled to at least one of the fan casing 320 or the cabinet assembly 100 and the The fan housing 430 is movably coupled in the front-rear direction so that the slab of the fan housing 430 can be moved. A guide housing 460 for guiding the movement of the guide, a fan housing actuator 470 for providing a driving force when the fan housing 430 slides, and the discharge grill 450 above the fan housing 430 And a tilting assembly 1000 that controls the tilting of the discharge grill 450 so as to rotate in a lower, left, right or diagonal direction.

The fan base 410, the fan 420, the fan housing 430, and the fan motor 440, which are assembled into one structure, are defined as a fan housing assembly.

The fan base 410 is disposed in the vertical direction with respect to the ground. The heat exchange assembly 500 is disposed at the rear of the fan base 410, and the fan 420 is disposed at the front. An orifice protruding forward is formed on the front surface of the fan base 410. The fan suction opening 411 is formed at the center of the orifice.

The fan 420 is located in the orifice and rotated. The fan 420 discharges the air sucked through the fan suction port 411 in the crossflow direction.

In the present embodiment, the crossflow direction is defined as the front side diagonal direction.

The fan housing 430 is formed in a cylindrical shape and is opened and opened in the front-rear direction. The fan motor 440 is positioned in front of the fan housing 430, and the fan 420 is located at the rear.

The motor shaft of the fan motor 440 is coupled to the fan 420 through the fan housing 430. The fan motor 440 may be located inside the fan housing 430, thereby reducing the thickness of the second fan assembly 400. The fan motor 440 is mounted to the fan housing 430.

The fan housing 430 includes an outer fan housing 432, an inner fan housing 434, and a vane 436.

The outer fan housing 432 is formed in a cylindrical shape of the front and rear openings, it is installed in the guide housing 460. The outer fan housing 432 may receive a driving force from the fan housing actuator 470 and move in the front-rear direction.

The inner fan housing 434 is formed in a cylindrical shape in which the front and rear surfaces are opened, and is located inside the outer fan housing 432. The inner fan housing 434 and the outer fan housing 432 are disposed to be spaced apart by a predetermined interval, and the vane 436 connects the outer fan housing 432 and the inner fan housing 434 integrally.

The outer fan housing 432, the inner fan housing 434, and the vane 436 add linearity to the air discharged from the fan 420.

The fan motor 440 may be mounted inside the inner fan housing 434 to minimize interference with the discharge air.

The guide housing 460 mounts the fan housing 430 and guides the front and rear directions of the fan housing 430.

The shape of the guide housing 460 is not particularly limited. In the present embodiment, the guide housing 460 may be mounted or coupled to the upper portion of the pan casing 320.

The guide housing 460 is manufactured to have a bottom surface corresponding to an upper surface of the pan casing 320 to facilitate coupling with the pan casing 320. The guide housing 460 is formed to surround a portion of the bottom and both sides of the fan housing 430. The structure for guiding the fan housing 430 may be disposed on either the bottom or the side.

The guide housing 460 includes a housing base 462 disposed on an upper portion of the first fan assembly 300, and housing side walls 463 and 464 protruding upward from both edges of the housing base 462. ).

At least one of the guide housing 460 and the fan housing assembly is provided with a fan housing stopper 461 for limiting a forward movement distance of the fan housing assembly.

In the present exemplary embodiment, the fan housing stopper 461 is disposed in the guide housing 460 and is in contact with the fan housing assembly when the fan housing assembly moves forward.

In the present embodiment, the fan housing stopper 461 is disposed in the housing base 462. Unlike the present embodiment, the fan housing stopper 461 may be disposed on the housing sidewalls 463 and 464.

Wiring holes 465 for wiring the guide motor 472 to be described later are formed in the housing sidewalls 463 and 464. The wiring hole 465 extends in the front-rear direction and is formed to communicate the inside and the outside of the guide housing 460. The wiring hole 465 provides a space in which the wiring connected to the guide motor can be moved in the front and rear directions when the fan housing assembly is moved. Since the wiring may move along the wiring hole 465, it provides connection reliability with the guide motor 472.

The guide housing 460 is provided with a fastening portion for coupling with the fan casing 320. The fastening part is formed in the housing base 462.

The fan housing actuator 470 is configured to move forward and backward of the fan housing 430. The fan housing actuator 470 may move the fan housing 430 in a forward and backward direction through a control signal of a controller.

When the indoor unit is in operation, the fan housing actuator 470 advances the fan housing 430. When the indoor unit is stopped, the fan housing actuator 470 reverses the fan housing 430.

In the present embodiment, the fan housing actuator 470 moves the fan housing 430 through the driving force of the guide motor. Unlike the present embodiment, the fan housing actuator 470 may move the fan housing in the front and rear direction by using a device such as a hydraulic cylinder.

In this embodiment, the central axis (M1) of the fan housing assembly and the central axis (C1) of the front discharge port 401 is arranged to match. The fan housing actuator 470 moves the fan housing assembly in the front-rear direction in a state where the central axes M1 and C1 are coincident with each other.

The fan housing actuator 470 is disposed in the fan housing assembly, and provides a guide motor 472 for providing a driving force to move the fan housing assembly in the front and rear directions, and is disposed in the fan housing assembly. A guide shaft 474 rotated by the rotational force of 472, a first guide gear 476 coupled to the left side of the guide shaft 474, and rotated together with the guide shaft 474, and the guide. A second guide gear 477 coupled to the right side of the shaft 474 and rotated together with the guide shaft 474, disposed in the guide housing 460, and meshed with the first guide gear 476. And a second rack 479 disposed in the first rack 478 and the guide housing 460 and engaged with the second guide gear 477.

In this embodiment, the guide motor 472 is installed in the fan housing 430, the first rack 478 and the second rack 479 is disposed in the guide housing 460. Unlike the present embodiment, the guide motor 472 may be disposed in the guide housing 460, and the rack 478 may be disposed in the fan housing 430.

The fan housing 430 is advanced or retracted by the interaction of the racks 478 and 479 and the guide gears 476 and 477.

In this embodiment, one guide motor 472 is used, and a guide shaft 474 is disposed to uniformly move the fan housing 430, and first guide gears are disposed at both ends of the guide shaft 474, respectively. 476 and the second guide gear 477 are disposed.

In this embodiment, the first guide gear 476 is disposed on the left side of the guide shaft 474, and the second guide gear 477 is disposed on the right side of the guide shaft 474.

Racks 478 and 479 meshing with the guide gears 476 and 477 are disposed on the left and right sides of the guide housing 470, respectively.

In the present embodiment, the first guide gear 476 and the second guide gear 477 are disposed above the first rack 478 and the second rack 479. The first guide gear 476 and the second guide gear 477 are moved in the front-rear direction by riding the first rack 478 and the second rack 479.

The first rack 478 and the second rack 479 are formed on the upper surface of the housing base 462 of the guide housing 470, and protrude upward from the housing base 462 to guide the gears 476. 477 and mutual interference. The rack 478 extends in a longitudinal direction.

The guide motor 472 may be disposed at a lower left side or a lower right side of the fan housing 430. The motor shaft of the guide motor 472 may be directly coupled to the first guide gear 476 or the second guide gear 477.

Thus, when the guide motor 472 is rotated, the first guide gear 476 and the second guide gear 477 are simultaneously rotated by the rotational force of the guide motor 472, the fan housing 430 The left and right sides may be advanced or reversed through the same force.

A first guide rail 480 and a second guide rail 490 are further disposed between the fan housing 430 and the guide housing 470 so as to smoothly move the fan housing 430.

The first guide rail 480 couples the left side of the guide housing 470 and the left side of the fan housing assembly. In this embodiment, the first guide rail 480 is fixed to the inner left wall of the guide housing 470. The first guide rail 480 is fixed to the left side of the fan housing 430.

The first guide rail 480 supports the load of the fan housing assembly and guides the moving direction of the fan housing assembly.

The second guide rail 490 couples the right side of the guide housing 470 and the right side of the fan housing assembly. In the present embodiment, the second guide rail 490 is fixed to the inner right wall of the guide housing 470. The second guide rail 490 is fixed to the right side of the fan housing 430.

The second guide rail 490 supports the load of the fan housing assembly and guides the moving direction of the fan housing assembly.

The first guide rail 480 and the second guide rail 490 are disposed symmetrically with respect to the central axis M1 of the fan housing assembly.

Since the first guide rail 480 and the second guide rail 490 support a part of the load of the fan housing assembly, the front and rear movements of the fan housing assembly can be smoothly implemented.

Since the first guide rail 480 and the second guide rail 490 are arranged symmetrically with respect to the central axis, the left and right sides of the fan housing assembly are guided to be moved at the same speed and distance. When the moving speed and the distance of the left or right side of the fan housing assembly are non-uniform, the second fan assembly 400 is moved while moving. In addition, when the moving speed and the distance of the left or right of the fan housing assembly is non-uniform, it may not be accurately inserted into the front discharge port (401).

The first guide rail 480 is disposed between the left side of the housing side wall 463 and the fan housing 430. The second guide rail 490 is disposed between the right side of the housing side wall 464 and the fan housing 430.

The first guide rail 480 and the second guide rail 490 minimize friction during movement of the fan housing 430 through rolling friction.

The fan housing assembly may be moved forward through the operation of the fan housing actuator 470, and thus, a part of the discharge grill 450 may be exposed out of the front discharge port 401.

Before the fan housing actuator 470 is operated, the discharge grill 450 is not exposed outside the front discharge port 401.

The discharge grill 450 is located in front of the fan housing 430. The discharge grill 450 is partially inserted into the fan housing 430. The discharge grill 450 may be tilted in an up, down, left, right or diagonal direction while being inserted into the fan housing 430.

The discharge grill 450 is formed in a shape corresponding to the entire surface of the fan housing 430. In the present embodiment, the discharge grill 450 is formed in a cylindrical shape. Since the discharge grill 450 is tilted in the inserted state in the fan housing 430, it is possible to minimize the leakage of the discharge air between the discharge grill 450 and the fan housing 430.

The outer surface 451 of the discharge grill 450 is formed in a curved surface with respect to the front and rear directions. When tilting through the curved surface formed on the outer surface 451 of the discharge grill 450, it is possible to form a constant distance from the fan housing 430.

In this embodiment, the shaft center C1 at the tilting of the discharge grill 450 coincides with the motor shaft of the fan motor 440. Unlike the present embodiment, when the discharge grill 450 is tilted, the shaft center C1 may be disposed to be offset from the shaft center M1 by the fan motor 440.

The discharge grill 450 may be tilted in an up, down, left, right or diagonal direction based on the axis center C1. The discharge grill 450 may be tilted in an up, down, left, right or diagonal direction while being exposed to the front discharge port 401. The tilting assembly 1000 is disposed to steer the tilting angle of the discharge grill 450.

The tilting assembly 1000 is disposed between the discharge grill 450 and the fan housing 430. The tilting assembly 1000 is disposed at a position where interference with discharge air is minimized.

In this embodiment, the tilting assembly 1000 is positioned in front of the inner fan housing 434 to minimize interference with the discharged air. In particular, the tilting assembly 1000 is located in front of the fan motor 440.

The tilting assembly 1000 provides a structure in which the discharge vanes 450 are not restricted in a tilting direction or order. That is, the tilting assembly 1000 may perform left and right tilting after tilting up and down. In addition, the tilting assembly 1000 may tilt in the vertical direction after the left and right tilting.

Since the tilting assembly 1000 according to the present invention has no limitation in the direction of tilting, steering of the discharge vane 450 may be realized immediately.

The tilting assembly 1000 has a rear surface fixed to the fan housing 430 side and a front surface of the joint 1050 which is assembled to the discharge vane 450 in a tiltable manner, and the fan housing 430 side or the discharge vane. A first tilting unit 1001 fixed to the side of 450 and rotatably coupled to the discharge vane 450 and moved in the front-rear direction to tilt the discharge vane 450 in a first direction and the fan A second tilting fixed to the housing 430 side or the discharge vane 450 side and coupled to the discharge vane 450 so as to be relatively rotatable and moved in the front-rear direction to tilt the discharge vane 450 in the second direction Unit 1002.

The joint 1050 is disposed on the shaft center C1. In this embodiment, the joint 1050 is a ball joint is used. A universal joint may be used instead of the ball joint to be different from the present embodiment.

The joint 1050 may be fixed to the fan housing 320 or may be fixed to the fan motor 440.

In the present embodiment, the joint 1050 is installed in the fan mounter 442 that fixes the fan motor 440 to the fan housing 430.

The joint 1050 is disposed to face the front surface, and is disposed on the shaft center C1 of the discharge vane 450 and the shaft center M1 of the fan motor 440.

The joint 1050 may be directly assembled to the rear surface of the discharge vane 450. In this embodiment, the tilting cover 1070 is further included, and the tilting cover 1070 is disposed between the discharge vane 450 and the joint 1050.

The tilting cover 1070 is coupled to the rear surface of the discharge vane 450. The tilting cover 1070 is tilted in the up, down, left, right or diagonal direction together with the discharge vane 450.

The tilting cover 1070 covers the opened front surface of the inner fan housing 434. The tilting cover 1070 conceals the fan motor 440 inside the inner fan housing 434.

The joint 1050 is assembled to the rear surface of the tilting cover 1070 to be tiltable. The tilting cover 1070 and the joint 1050 are ball joint coupled to enable the free rotation of the tilting cover 1070.

The discharge vane 450 may be tilted in an up-down direction, left-right direction, or diagonally inclined direction in a state facing the front surface. The discharge vane 450 is not limited in the tilting direction in the state facing the front.

In this embodiment, the first direction is set in the vertical direction, and the second direction is set in the left and right directions. Unlike the present embodiment, the first direction and the second direction can be arbitrarily changed. In the present embodiment, the first direction and the second direction form an angle of 90 degrees.

The first tilting unit 1001 may push or pull the discharge vane 450 and tilt the discharge vane 450 in the vertical direction with respect to the joint 1050.

The second tilting unit 1002 may push or pull the discharge vane 450, and tilt the discharge vane 450 in a left and right direction based on the joint 1050.

The combination of the first tilting unit 1001 and the second tilting unit 1002 may tilt the discharge vane 450 in a diagonal direction with respect to the joint 1050.

The first tilting unit 1001 and the second tilting unit 1002 are composed of the same parts. The configuration of the first tilting unit 1001 will be described as an example.

The first tilting unit 1001 includes a bracket 1010 fixed to the fan housing 430 side or the discharge vane 450 side, and a movable rack 1020 coupled to the bracket 1010 so as to be relatively movable. Is formed in the bracket (1010), the movable rack 1020 and relative movable assembly, the guide portion 1012 for guiding the moving direction of the movable rack 1020, and the movable rack 1020 A tilting motor 1030 that provides a driving force to be moved, a tilting gear 1040 coupled to the motor shaft 1031 of the tilting motor 1030, and engaged with the moving rack 1020, and the The moving rack 1020 and the discharge grill 450 is coupled, and includes an adjust assembly (1060, adjust assembly) for adjusting the tilting angle of the discharge grill 450 when the moving rack 1020 moves.

The bracket 1010 may be fixed to the fan housing 430 or the discharge vane 450. In this embodiment, the bracket 1010 is fixed to the tilting cover 1070 disposed on the discharge vane 450 side. The bracket 1010 is coupled to the rear surface of the tilting cover 1070, and the adjust assembly 1060 is disposed through the tilting cover 1070.

The tilting motor 1030 is installed on the bracket 1010. The tilting motor 1030 moves the movable rack 1020 in the front-rear direction while being fixed to the bracket 1010.

The bracket 1010 is formed with a guide portion 1012 in the front-rear direction, and the movable rack 1020 slides along the guide portion 1012.

The guide part 1012 is formed in a slit shape penetrating in the left and right directions. Unlike the present embodiment, the guide part 1012 may be formed in a groove shape.

The moving rack 1020 is formed with an insertion portion 1022 inserted through the guide portion 1012. The insertion part 1022 may be moved along the guide part 1012. The guide part 1012 is formed to extend in the front-rear direction, and the insertion part 1022 is moved in the front-rear direction along the guide part 1012.

The movable rack 1020 is formed with a rack in the longitudinal direction, and meshes with the tilting gear (1040). According to the rotation direction of the tilting gear 1040, the moving rack 1020 may be moved forward or backward.

The motor shaft 1031 of the tilting motor 1030 is disposed to face the bracket 1010. The motor shaft 1031 is disposed in the left and right directions. The tilting gear 1040 and the moving rack 1020 are disposed between the tilting motor 1030 and the bracket 1010.

The adjust assembly 1060 is configured to connect the discharge vane 450 and the moving rack 1020.

When the discharge vane 450 is tilted, the relative distance between the discharge vane 450 and the moving rack 1020 is variable, and the adjust assembly 1060 is disposed to eliminate the variable distance difference.

The adjust assembly 1060 corrects the relative displacement and the relative angle of the discharge vane 450 and the moving rack 1020, and maintains the discharge vane 450 in a tilted state.

In the present embodiment, the adjust assembly 1060 corrects the relative displacement and the relative angle through a multi-joint structure.

The adjust assembly 1060 has a first ball stud 1061 and a first ball stud 1061 having a rear side coupled to the movable rack 1020 and having a first first ball hinge 1065 formed at a front side thereof. The first ball housing 1063 having the first ball hinge 1065 disposed in the front side of the head) is inserted therein, and the front side is coupled to the discharge vane 450 and the second second ball hinge at the rear side. A second ball stud 1062 having a 1066 formed therein and the second ball hinge 1066 disposed at a rear side of the second ball stud 1062 are inserted therein, and the first ball housing 1063 is inserted therein. A second ball housing 1064 coupled with the first ball housing 1063 and the second ball housing 1064, and the first first ball hinge 1065 and the second second ball hinge 1064. 1066 and a hinge bar 1068 for forming relative rotation, respectively.

The rear side of the first ball stud 1061 is fixed to the moving rack 1020. In the present embodiment, the first ball stud installation portion 1023 to which the first ball stud 1061 is fitted is formed at the front side of the movable rack 1020.

A spherical first ball hinge 1065 is disposed in front of the first ball stud 1061.

The first ball hinge 1065 is inserted into the first ball housing 1063. The first ball hinge 1065 may be freely rotated relative to the first ball housing 1063 in the first ball housing 1063.

Similarly, the front side of the second ball stud 1062 is fixed to the tilting cover 1070. A spherical second ball hinge 1066 is disposed behind the second ball stud 1062.

The second ball hinge 1066 is inserted into the second ball housing 1064. The second ball hinge 1066 may be freely rotated relative to the second ball housing 1064 in the second ball housing 1064.

The first ball housing 1063 and the second ball housing 1064 are combined to form a ball housing. The first ball hinge 1065 and the second ball hinge 1066 are disposed to face each other in the ball housing.

The hinge bar 1068 is disposed between the first ball hinge 1065 and the second ball hinge 1066. The hinge bar 1068 maintains a minimum distance between the first ball hinge 1065 and the second ball hinge 1066. The hinge bar 1068 reduces friction between the first ball hinge 1065 and the second ball hinge 1066.

The hinge bar 1068 has a concave first accommodating portion 1068a in which a portion of the first ball hinge 1065 can be accommodated on a rear side thereof, and a portion of the second ball hinge 1066 on a front side thereof. A concave second receiving portion 1068b that can be accommodated is formed.

The hinge bar 1068 is formed in a mortar form on both sides.

In the present embodiment, the adjust assembly 1060 connects the movable rack 1020 and the discharge vane 450 through the tilting cover 1070. To this end, the tilting cover 1070 is formed with through holes 1071 and 1072 through which the adjust assembly 1060 passes.

Two through holes 1071 and 1072 are formed for the first tilting unit 1001 and the second tilting unit 1002.

FIG. 18 is a view showing a part of the first fan assembly shown in FIG.

The fan casing 320 is provided with three blowers 310. Since the three blowers 310 have the same structure, only one portion of the blower 310 and the part of the fan casing 320 in which the blower 310 is installed will be described as an example.

The blower 310 includes a centrifugal fan 340 and a fan motor 350 for rotating the centrifugal fan 340. When the centrifugal fan 340 is rotated by the driving of the fan motor 350, the centrifugal fan 340 sucks air in the axial direction and discharges the sucked air in the circumferential direction. The centrifugal fan 340 sucks air from the rear and discharges the sucked air to the side.

The centrifugal fan 340 may be a sirocco fan. And a circular main plate, an annular rim spaced apart in the axial direction from the main plate, and a plurality of blades connected to the main plate and the rim, which are erected in the axial direction and spaced apart from each other along the circumferential direction. In the sirocco fan, a rotation shaft of the fan motor 350 is coupled to the center of the main plate 341. Therefore, when the fan shaft 350 is rotated during the operation of the fan motor 350, the sirocco fan may be rotated.

The fan casing 320 is provided with an air suction port on one surface in the axial direction. When defining the axial direction in the front-rear direction, the air inlet of the fan casing 320 may be formed in the front-rear direction on the back of the pan casing 320.

In addition, the fan casing 320 is provided with air outlets 326 and 327 on both sides in the radial direction, respectively.

The fan casing 320 is provided with a scroll 330 for guiding the air discharged from the blower 310 laterally with respect to the cabinet assembly 100.

The scroll 330 guides the air discharged from the blower 310 to the side discharge port 301. The scroll 330 guides the air introduced into the scroll 330 through the air inlets of the fan casing 320 to the air outlets 326 and 327 on both sides. The air discharge ports 326 and 327 on both sides may be holes communicating with the side discharge ports 301.

The fan casing 320 accommodates the centrifugal fan 340 therein. The fan casing 320 has air inlets formed on the rear surface in the axial direction, and air outlets 326 and 327 are formed at both sides in the radial direction.

When the centrifugal fan 340 is formed of the sirocco fan, the main plate is convexly formed toward the rim, and the opposite side of the rim is concave. The main plate may have a rear surface convex toward the rear and a front surface concave toward the rear. The front surface of the fan casing 320 may be formed in a shape corresponding to that of the main plate, and a fan motor inserting portion 302 may be formed to be concave toward the rear. The fan motor insertion unit 302 may be inserted into the concave front surface of the main plate. The fan motor 350 may be inserted into the fan motor insertion unit 302 and disposed in the fan motor insertion unit 302. The rotating shaft of the fan motor 350 may be coupled to the center of the main plate after passing through the fan motor inserting portion 302 in front of the fan casing 320. The main plate may be spaced apart from the fan motor insertion unit 302 in the axial direction. Opposite surfaces of the main plate and the fan motor insertion unit 302 may be spaced apart at equal intervals. The fan motor 350 may be coupled into the fan motor insertion unit 302 through a triangular motor mount 351. The motor mount 351 supports one side of the case of the fan motor 350 opposite to the surface on which the rotating shaft protrudes, and three fastening bosses 302A having three corner portions protruding inside the fan motor insertion unit 302. Can be fastened via bolts.

The scroll 330 surrounds the centrifugal fan 340 in the circumferential direction, and both ends thereof extend to the respective air discharge ports 326 and 327 to transfer the air introduced through the air intake ports of the fan casing 320 to the air discharge ports 326 and 327. To guide.

19 is a view showing the flow of air discharged during the operation of the centrifugal fan shown in FIG.

The centrifugal fan 340 is rotated clockwise when viewed from the front in the axial direction. In order to be able to suck air in the axial direction and discharge air in the circumferential direction while the centrifugal fan 340 is rotated, the blades of the centrifugal fan 340 have a concave cross section in a direction opposite to the rotation direction The face is preferably formed to have a convex cross section.

As the centrifugal fan 340 rotates to discharge air in the circumferential direction, when the centrifugal fan 340 is rotated in the clockwise direction, the air discharged from the left side of the centrifugal fan 340 is bent upwards and blown, and centrifugal Air discharged from the right side of the fan 340 is bent and blown downward. On the contrary, when the centrifugal fan 340 is rotated in the counterclockwise direction, the air discharged from the right side of the centrifugal fan 340 is blown upward while the air discharged from the left side of the centrifugal fan 340 is bent downward. It is blown.

As described above, the air blown while being bent upward from one side of the centrifugal fan 340 meets the air discharged to the front from the second fan assembly 400, and the flow of air discharged to the front from the second fan assembly 400. There is a problem that hinders, and in order to solve this problem, the structure of the first fan assembly 300 will be described in detail below.

20 is a front sectional view of the first fan assembly shown in FIG. 18.

The centrifugal fan 340 includes a first centrifugal fan 340A disposed at the uppermost side, a second centrifugal fan 340B disposed to be spaced directly downward from the first centrifugal fan 340A, and a second centrifugal fan 340B. A third centrifugal fan (340C) spaced apart directly below. The fan casing 320 accommodates the first centrifugal fan 340A, the second centrifugal fan 340B, and the third centrifugal fan 340C therein.

The air inlet formed in the fan casing 320 may include a first air intake 325A formed at an uppermost side thereof, a second air intake 325B spaced downward from the first air intake 325A, and And a third air inlet 325C spaced downward from the second air inlet 325B.

Air outlets 326 and 327 formed in the fan casing 320 are first air outlets 326A formed on the uppermost side of the left side of the pan casing 320 and the first air outlets 326A formed at the uppermost side of the pan casing 320. 2 air discharge port 327A, a third air discharge port 326B formed directly below the first air discharge port 326A on the left side of the fan casing 320, and a second air discharge port on the right side of the fan casing 320; The fourth air discharge port 327B formed directly below 327A, the fifth air discharge port 326C formed directly below the third air discharge port 326B on the left side of the fan casing 320, and the fan casing. The sixth air discharge port 327C formed on the right side of the 320 directly under the fourth air discharge port 327B.

The first air outlet 326A discharges the air introduced through the first air inlet 325A and blown through the left side of the first centrifugal fan 340A to the left side of the fan casing 320, and the second air outlet ( 327A is discharged through the first air inlet 325A and blown through the right side of the first centrifugal fan 340A to the right side of the fan casing 320.

The third air discharge port 326B discharges the air introduced through the second air suction port 325B and blown through the left side of the second centrifugal fan 340B to the left side of the fan casing 320, and the fourth air discharge port ( 327B is discharged through the second air inlet 325B and blown through the right side of the second centrifugal fan 340B to the right side of the fan casing 320.

The fifth air discharge port 326C discharges the air introduced through the third air suction port 325C and blown through the left side of the third centrifugal fan 340C to the left side of the fan casing 320, and the sixth air discharge port ( 327C is discharged through the third air inlet 325C and blown through the right side of the third centrifugal fan 340C to the right side of the fan casing 320.

In the present embodiment, when viewed from the front in the axial direction, the first centrifugal fan 340A, the second centrifugal fan 340B, and the third centrifugal fan 340C are rotated clockwise, so that the first air outlet 326A , The third air outlet 326B and the fifth air outlet 326C are formed on the left side of the fan casing 320, and the second air outlet 327A, the fourth air outlet 327B, and the sixth air outlet 327C ) Is formed on the right side of the pan casing (320). If the first centrifugal fan 340A, the second centrifugal fan 340B, and the third centrifugal fan 340C are rotated counterclockwise when viewed from the front in the axial direction, the first air outlet 326A The third air outlet 326B and the fifth air outlet 326C are formed on the right side of the fan casing 320, and the second air outlet 327A, the fourth air outlet 327B, and the sixth air outlet 327C. ) May be formed on the left side of the pan casing 320.

The scroll 330 includes a first scroll 330A formed on the uppermost side of the pan casing 320, a second scroll 330B formed directly below the first scroll 330A, and a second scroll 330B. It includes a third scroll 330C formed directly below.

The first scroll 330A circumferentially surrounds the first centrifugal fan 340A, one end of which extends to the first air outlet 326A, and the other end of which extends to the second air outlet 327A. The first scroll 330A guides the air introduced into the first scroll 330A through the first air inlet 325A to the first air outlet 326A and the second air outlet 327A.

The second scroll 330B circumferentially surrounds the second centrifugal fan 340B, one end of which extends to the third air outlet 326B, and the other end of which extends to the fourth air outlet 327B. The second scroll 330B guides the air introduced into the second scroll 330B through the second air inlet 325B to the third air outlet 326B and the fourth air outlet 327B.

The third scroll 330C surrounds the third centrifugal fan 340C in the circumferential direction, one end thereof extends to the fifth air outlet 326C, and the other end extends to the sixth air outlet 327C. The third scroll 330C guides air introduced into the third scroll 330C through the third air inlet 325C to the fifth air outlet 326C and the sixth air outlet 327C.

The first scroll 330A includes a first scroll portion 381 surrounding the upper side of the first centrifugal fan 340A, and a second scroll portion 382 surrounding the lower side of the first centrifugal fan 340A. . The second scroll portion 382 is disposed spaced downward from the first scroll portion 381.

The second scroll 330B includes a third scroll portion 383 surrounding the upper side of the second centrifugal fan 340B, and a fourth scroll portion 384 surrounding the lower side of the second centrifugal fan 340B. . The fourth scroll portion 384 is spaced downward from the third scroll portion 383.

The third scroll 330C includes a fifth scroll portion 385 surrounding the upper side of the third centrifugal fan 340C, and a sixth scroll portion 386 surrounding the lower side of the third centrifugal fan 340C. . The sixth scroll unit 386 is spaced downward from the fifth scroll unit 385.

The inner side surface of the first scroll portion 381 is formed in the same shape as the inner side surface of the sixth scroll portion 386, and both ends of the sixth scroll portion 386 are the rotation centers C10 of the first centrifugal fan 340A. ), The center of rotation C20 of the second centrifugal fan 340B, and the vertical line VL passing through the center of rotation C30 of the third centrifugal fan 340C are inverted by 180 degrees.

The second scroll portion 382 is disposed between the first centrifugal fan 340A and the second centrifugal fan 340B. The inner side surface of the second scroll portion 382 is formed in the same shape as the inner side surface of the fourth scroll portion 384. The inner surface of the second scroll portion 382 is formed in the same shape as the inner surface of the third scroll portion 383, the both ends of the third scroll portion 383 is inverted 180 degrees with respect to the vertical line (VL) Is formed.

The third scroll portion 383 is disposed below the second scroll portion 382 and is disposed between the first centrifugal fan 340A and the second centrifugal fan 340B. The inner side surface of the third scroll portion 383 is formed in the same shape as the inner side surface of the fifth scroll portion 385.

The second scroll portion 382 has a portion that forms a lower portion of the first air discharge port 326A bent downward, and the third scroll portion 383 has a portion that forms an upper portion of the fourth air discharge port 327B. The fourth scroll portion 384 is curved downward, and the fourth scroll portion 384 is curved downward, and the fifth scroll portion 385 forms an upper portion of the sixth air discharge opening 327C. The part to be bent upwards.

The lowest point of the first air outlet 326A is located lower than the highest point of the fourth air outlet 327B. That is, the bottom of the first air outlet 326A and the bottom of the fourth air outlet 327B are located at the lowest point of the third air outlet 326B lower than the highest point of the sixth air outlet 327C.

That is, the lower portion of the first air outlet 326A, the upper portion of the fourth air outlet 327B, the lower portion of the third air outlet 326B, and the upper portion of the sixth air outlet 327C are the size of the air outlet by the respective degree of curvature. Since becomes large, the amount of air discharged can be increased to lower the wind pressure.

A portion of the first scroll portion 381 that forms the upper portion of the second air discharge port 327A is also formed to be curved upward, and a portion of the sixth scroll portion 386 that forms the lower portion of the fifth air discharge port 326C. It is preferable to be formed to be bent toward the lower side, but in this embodiment, since the space is not secured due to other components of the air conditioner, the upper portion of the second air discharge port 327A of the first scroll portion 381 is formed. The portion is formed horizontally, and the portion forming the lower portion of the fifth air discharge port 326C of the sixth scroll portion 386 is formed horizontally. In the present embodiment, when viewed from the front in the axial direction, the first centrifugal fan 340A, the second centrifugal fan 340B, and the third centrifugal fan 340C are rotated clockwise, so that the second air outlet 327A Since the air discharged from the gas is discharged while being bent downward, the air discharged to the front from the second fan assembly 400 disposed above the fan casing 320 is not affected. Therefore, the part which forms the upper part of the 2nd air discharge port 327A among the 1st scroll parts 381 may be formed horizontally. In addition, although the air discharged from the fifth air discharge port 326C is discharged while bending upward, the fifth air discharge port 326C is located farthest from the second fan assembly 400 than the other air discharge ports. The air discharged to the front from the second fan assembly 400 is not affected. Therefore, the part which forms the lower part of the 5th air discharge port 326C among the 6th scroll parts 386 may be formed horizontally.

Since the inner surface of the first scroll portion 381 and the inner surface of the sixth scroll portion 386 are formed in the same shape, the inner surface of the first scroll portion 381 and the inner surface of the sixth scroll portion 386 are formed. The specific shape will be described below with only the first scroll portion 381 as an example.

The inner surface of the first scroll portion 381 includes a first flat surface portion 381A, a curved portion 381B, and a second flat surface portion 381C. The first flat surface portion 381A extends from the first air discharge port 326A toward the second air discharge port 327A but extends to the outside of the first centrifugal fan 340A and is formed horizontally. The curved portion 381B extends from the first flat surface portion 381A toward the second air discharge port 327A but extends up to the vertical line VL to be convex upward. The second flat surface portion 381C extends from the curved portion 381B to the second air discharge port 327A, and is formed horizontally. The point where the first planar portion 381A and the curved portion 381B meet is formed into an inner convex curved surface.

Since the inner surface of the second scroll portion 382, the inner surface of the third scroll portion 383, the inner surface of the fourth scroll portion 384 and the inner surface of the fifth scroll portion 385 are formed in the same shape, Specific shapes of the inner surface of the second scroll portion 382, the inner surface of the third scroll portion 383, the inner surface of the fourth scroll portion 384, and the inner surface of the fifth scroll portion 385 are described. Only the scroll portion 382 will be described below with an example.

The inner surface of the second scroll portion 382 includes a first curved portion 382A, a second curved portion 382B and a flat surface portion 382C. The first curved portion 382A extends from the first air discharge port 326A toward the second air discharge port 327A but extends up to the vertical line VL to be convex upward. The second curved portion 382B extends from the first curved portion 382A toward the second air discharge port 327A, but extends to the outside of the first centrifugal fan 340A to be concave downward. The flat surface portion 382C extends from the second curved portion 382B to the second air discharge port 327A, and is formed horizontally. The point where the 2nd curved part 382B and the flat surface part 382C meet is formed in the inside convex curved surface.

FIG. 21 is a front sectional view showing the first discharge vane shown in FIG. 4. FIG.

The upper and lower intervals of the plurality of first discharge ribs 305A provided in the first discharge vane 303A are formed to be wider from top to bottom, so that the amount of air discharged through the first air discharge port 326A has a small upper portion and a lower portion. Makes a lot. Therefore, the air discharged from the first air discharge port 326A prevents the second fan assembly 400 disposed above the fan casing 320 from encountering the air discharged to the front, thereby preventing the air from being discharged to the second fan assembly 400. Does not interfere with the flow of air discharged to the front.

The plurality of first discharge ribs 305A are disposed between the upper rib 306A disposed on the uppermost side, the lower rib 306B disposed on the lowermost side, and the upper rib 306A and the lower rib 306B. It includes a plurality of intermediate ribs (306C). In this embodiment, a plurality of intermediate ribs 306C is provided.

The upper rib 306A is formed horizontally in the horizontal direction, and the lower surface thereof coincides in the horizontal direction with the inner surface of the first flat surface portion 381A of the first scroll portion 381. The lower rib 306B is formed horizontally in the horizontal direction, and the upper surface thereof coincides with the inner surface of the end of the first curved portion 382A of the second scroll portion 382. The plurality of intermediate ribs 306C are horizontally formed in the horizontal direction toward the first centrifugal fan 340A, and the ends thereof are inclined downward with respect to the horizontal direction.

As described above, the fan assembly according to the embodiment of the present invention and the air conditioner including the same, since the size of the air discharge port (326A, 326B, 327B, 327C) is secured, the amount of air discharged is increased and the pressure is lowered, The discharged air does not interfere with the flow of the air discharged to the front from the second fan assembly 400 disposed above the fan casing 320.

In addition, the upper and lower intervals of the plurality of first discharge ribs 305A included in the first discharge vane 303A are formed to be wider from top to bottom, so that they are discharged downward compared to the upper portion of the first air discharge port 326A. Since the amount of air increases, the flow of air discharged to the front from the second fan assembly 400 is not disturbed.

Those skilled in the art will appreciate that the present invention can be embodied in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, it is to be understood that the embodiments described above are exemplary in all respects and not restrictive. The scope of the present invention is indicated by the scope of the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalent concept are included in the scope of the present invention. Should be interpreted.

300: first fan assembly 320: pan casing
326A: first air outlet 326B: third air outlet
327A: second air outlet 327B: fourth air outlet
340A: first centrifugal fan 340B: second centrifugal fan
330A: First Scroll 330B: Second Scroll
VL: vertical line 382: second scroll portion
382A: first curved portion 382B: second curved portion
382C: flat surface portion 383: third scroll portion
303A: first discharge vane 303B: second discharge vane
303C: third discharge vane 303D: fourth discharge vane
305A: first discharge rib 305B: second discharge rib
305C: third discharge rib 305D: fourth discharge rib
400: second fan assembly

Claims (11)

A first centrifugal fan;
A second centrifugal fan spaced downward from the first centrifugal fan; And
The first centrifugal fan and the second centrifugal fan are accommodated therein, and a first air outlet and a second air outlet are respectively formed at both sides for discharging air blown from the first centrifugal fan, and the second centrifugal fan A third air discharge port and a fourth air discharge port for discharging air blown from the air are respectively formed at both sides, and the third air discharge port is formed directly below the first air discharge port, and the fourth air discharge port is the second air discharge port. Includes; is formed directly below the pan casing;
The lowest point of the first air outlet is located lower than the highest point of the fourth air outlet,
In the pan casing,
A first scroll surrounding the first centrifugal fan in a circumferential direction, one end of which extends to the first air outlet, and the other end of which extends to the second air outlet;
A second scroll is disposed below the first scroll and surrounds the second centrifugal fan in a circumferential direction, one end of which extends to the third air outlet, the other end of which extends to the fourth air outlet,
The first scroll includes a second scroll portion disposed between the first centrifugal fan and the second centrifugal fan,
The second scroll includes a third scroll portion disposed between the first centrifugal fan and the second centrifugal fan under the second scroll portion,
The second scroll portion is a portion forming the lower portion of the first air discharge port is bent downward and the portion forming a lower portion of the second air discharge port is flat,
The fan assembly of claim 3, wherein the third scroll portion has a portion that forms an upper portion of the fourth air discharge opening and a portion that forms a lower portion of the third air discharge opening.
delete delete The method according to claim 1,
The second scroll part has an inner side surface formed in the same shape as the inner side surface of the third scroll portion, and both ends of the third scroll portion refer to a vertical line passing through the center of rotation of the first centrifugal fan and the center of rotation of the second centrifugal fan. The fan assembly is formed into an inverted shape by 180 degrees. The method according to claim 4,
The inner side surface of the second scroll portion,
A first curved portion extending from the first air outlet toward the second air outlet and extending to a vertical line passing through the center of rotation of the first centrifugal fan and the center of rotation of the second centrifugal fan, and being convex upward; ,
A second curved portion extending from the first curved portion toward the second air discharge port and extending to the outside of the first centrifugal fan to be concave downward;
A fan assembly comprising a flat surface portion extending from the second curved surface portion to the second air discharge port, formed horizontally. The method according to claim 5,
The point where the second curved portion and the flat surface portion meet is formed in a convex curved surface inward. The method according to claim 1,
When looking from the axial front,
The first centrifugal fan and the second centrifugal fan are rotated clockwise;
The first air outlet and the third air outlet is formed on the left side of the fan casing,
The second air discharge port and the fourth air discharge port is a fan assembly formed on the right side of the fan casing. The method according to claim 1,
When looking from the axial front,
The first centrifugal fan and the second centrifugal fan are rotated counterclockwise;
The first air outlet and the third air outlet is formed on the right side of the fan casing,
The second air discharge port and the fourth air discharge port is formed on the left side of the fan casing fan assembly. A first centrifugal fan;
A second centrifugal fan spaced downward from the first centrifugal fan; And
The first centrifugal fan and the second centrifugal fan are accommodated therein, and a first air outlet and a second air outlet are respectively formed at both sides for discharging air blown from the first centrifugal fan, and the second centrifugal fan A third air discharge port and a fourth air discharge port for discharging air blown from the air are respectively formed at both sides, and the third air discharge port is formed directly below the first air discharge port, and the fourth air discharge port is the second air discharge port. It comprises; pan casing formed directly below;
The lowest point of the first air outlet is located lower than the highest point of the fourth air outlet,
It further comprises a first discharge vane for controlling the direction of the air discharged from the first air discharge port, and having a plurality of first discharge ribs arranged in parallel with each other up and down,
The upper and lower intervals of the plurality of first discharge ribs are formed to be wider from top to bottom. The method according to claim 9,
A second discharge vane controlling a direction of air discharged from the second air discharge port and having a plurality of second discharge ribs arranged in parallel with each other in a vertical direction;
A third discharge vane controlling a direction of air discharged from the third air discharge port and having a plurality of third discharge ribs arranged in parallel with each other up and down;
It further comprises a fourth discharge vane for controlling the direction of the air discharged from the fourth air discharge port, and having a plurality of fourth discharge ribs arranged in parallel to each other up and down,
And a vertical gap between the plurality of second discharge ribs, a vertical gap between the plurality of third discharge ribs, and a vertical gap between the plurality of fourth discharge ribs are formed at equal intervals. A first fan assembly for discharging air to both sides; And
And a second fan assembly disposed on an upper side of the first fan assembly and discharging air to the front.
The first fan assembly,
A first centrifugal fan;
A second centrifugal fan spaced downward from the first centrifugal fan; And
The first centrifugal fan and the second centrifugal fan are accommodated therein, and a first air outlet and a second air outlet are respectively formed at both sides for discharging air blown from the first centrifugal fan, and the second centrifugal fan A third air discharge port and a fourth air discharge port for discharging air blown from the air are respectively formed at both sides, and the third air discharge port is formed directly below the first air discharge port, and the fourth air discharge port is the second air discharge port. It comprises; pan casing formed directly below;
The lowest point of the first air outlet is located lower than the highest point of the fourth air outlet,
It further comprises a first discharge vane for controlling the direction of the air discharged from the first air discharge port, and having a plurality of first discharge ribs arranged in parallel with each other up and down,
An air conditioner of the plurality of first discharge ribs is formed to be wider from top to bottom.

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