KR102521295B1 - Indoor unit of air conditioner - Google Patents

Abstract

The present invention is a case formed on the bottom surface of the inlet and outlet; and a discharge vane disposed in the case and guiding a flow direction of discharged air discharged from the discharge port, wherein the discharge vane is located at a front side with respect to the discharge port and includes a first vane guiding a flow direction of air. ; a second vane positioned at a rear side with respect to the discharge port and rotatably coupled to the case through a second vane shaft coupled to the case; a vane motor installed in the case and providing a driving force for rotating the first vane and the second vane; a motor gear connected to and rotated by the vane motor; a first gear engaged with the motor gear and connected to the first vane to rotate the first vane; A second gear engaged with the motor gear and connected to the second vane to rotate the second vane.
The present invention has the advantage of being able to simultaneously adjust the rotational angles of the first vane and the second vane through gears as the driving force of the vane motor, thereby providing horizontal wind, inclined wind, or vertical wind.

Description

Indoor unit of air conditioner {Indoor unit of air conditioner}

The present invention relates to an indoor unit of an air conditioner, and more particularly, to a ceiling-type indoor unit installed on a ceiling of a room.

In general, an air conditioner is composed of a compressor, a condenser, an evaporator, and an expander, and supplies cold or warm air to a building or room using an air conditioning cycle.

Air conditioners are structurally divided into a separate type in which a compressor is disposed outdoors and an integral type in which a compressor is integrally manufactured.

In the separate type, an indoor heat exchanger is installed in an indoor unit, and an outdoor heat exchanger and a compressor are installed in an outdoor unit, and the two separated devices are connected by a refrigerant pipe.

In the integrated type, an indoor heat exchanger, an outdoor heat exchanger and a compressor are installed in one case. The integrated air conditioner includes a window type air conditioner installed directly by hanging a device on a window, and a duct type air conditioner installed outside the room by connecting a suction duct and a discharge duct.

In general, the split-type air conditioner is classified according to an installation type of an indoor unit.

An indoor unit installed vertically in an indoor space is called a stand type air conditioner, an indoor unit installed on a wall is called a wall-mounted type air conditioner, and an indoor unit installed on the ceiling is called a ceiling type indoor unit.

Also, as a type of separate type air conditioner, there is a system air conditioner capable of providing air conditioned air to a plurality of spaces.

In the case of a system air conditioner, there are a type that air-conditions a room by having a plurality of indoor units and a type that supplies air-conditioned air to each space through a duct.

The plurality of indoor units provided in the system air conditioner may be of a stand type, a wall-mounted type, or a ceiling type.

In the case of a conventional ceiling-type indoor unit, one vane is installed at the discharge port, and the flow direction of discharged air is controlled by adjusting the rotation angle of the vane.

However, since the conventional ceiling-type indoor unit controls the air discharge direction with only one vane from one discharge port, there is a problem in that the control range of discharged air is limited.

Korean Registered Patent No. 10-0679838 B1

An object of the present invention is to provide an indoor unit of an air conditioner capable of realizing vertical wind and horizontal wind through a first vane and a second vane.

An object of the present invention is to provide an indoor unit of an air conditioner that guides discharged air by connecting a first vane and a second vane when generating horizontal wind.

An object of the present invention is to provide an indoor unit of an air conditioner that guides discharged air by standing both first vanes and second vanes perpendicular to the ground or ceiling when creating vertical wind.

An object of the present invention is to provide an indoor unit of an air conditioner capable of differently controlling rotational angles of a first vane and a second vane using a single motor.

An object of the present invention is to provide an indoor unit of an air conditioner capable of minimizing deflection of a first vane and a second vane.

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

The present invention can control the first vane and the second vane at different angles using one vane motor.

According to the present invention, a first gear coupled to a first vane and a second gear coupled to a second vane can be simultaneously rotated by driving one vane motor.

In the present invention, the first and second gears having different gear ratios may be rotated through one vane motor to rotate the first vane and the second vane at different angles.

The present invention is a case formed on the bottom surface of the inlet and outlet; and a discharge vane disposed in the case and guiding a flow direction of discharged air discharged from the discharge port, wherein the discharge vane is located at a front side with respect to the discharge port and includes a first vane guiding a flow direction of air. ; a second vane positioned at a rear side with respect to the discharge port and rotatably coupled to the case through a second vane shaft coupled to the case; a vane motor installed in the case and providing a driving force for rotating the first vane and the second vane; a motor gear connected to and rotated by the vane motor; a first gear engaged with the motor gear and connected to the first vane to rotate the first vane; A second gear engaged with the motor gear and connected to the second vane to rotate the second vane.

a first link having one end coupled to the first vane and the other end coupled to the first gear; and a second link having one end coupled to the second vane and the other end coupled to the second gear.

The first gear and the second gear may be located below the motor gear.

a first link having one end coupled to the first vane and the other end coupled to the first gear; and a second link having one end coupled to the second vane and the other end coupled to the second gear, wherein the first link is positioned below the motor gear and further includes a curved portion bent downward. can

When viewed from a top view, at least a portion of the first gear and the second gear may be disposed to overlap the motor gear.

Located on one side of the discharge port, assembled to the case, the vane motor, first gear, second gear and motor gear are installed, and the vane motor, first gear, second gear and motor gear cover the discharge port A motor case that blocks exposure to the outside through the; may be further included.

The motor case may include a motor accommodating housing in which the vane motor is accommodated and the vane motor is fixed; It may include; a gear accommodation housing formed connected to the motor accommodation housing and receiving at least one of the first gear and the second gear.

The motor accommodating housing may further include a first hole formed in an axial direction of the vane motor, and the motor gear may pass through the first hole and be disposed over the motor accommodating housing and the gear accommodating housing.

The motor housing housing further includes a first hole and a second hole formed in an axial direction of the vane motor, and the gear housing housing further includes a third hole formed in an axial direction of the vane motor. Is disposed across the motor housing and the gear housing through the first hole, the first gear is disposed inside the motor housing, the second gear is disposed inside the gear housing, The first link may pass through the second hole and be coupled to the first gear, and the second link may pass through the third hole and be coupled to the second gear.

A predetermined gap may be formed between the motor housing and the gear housing, and may be exposed to the outside of the motor case through the gap when the first link rotates.

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

First, the present invention has the advantage of being able to simultaneously adjust the rotational angles of the first vane and the second vane through gears for the driving force of the vane motor, thereby providing horizontal wind, inclined wind, or vertical wind.

Second, the present invention has the advantage of simultaneously rotating the first vane and the second vane at different angles by disposing different gear ratios of the first gear and the second gear meshed together with the motor gear.

Third, the present invention has the advantage of providing a motor case in which a vane motor, a motor gear, a first gear and a second gear are installed and are blocked from being exposed to the outside.

Fourth, the present invention has the advantage of preventing the first vane and the second vane from sagging because the first gear and the second gear to which the first vane and the second vane are respectively coupled maintain a state engaged with the motor gear. there is

1 is a perspective view illustrating an indoor unit of an air conditioner according to an embodiment of the present invention.
Figure 2 is a cross-sectional side view of Figure 1;
3 is a first perspective view showing a discharge vane according to an embodiment of the present invention.
4 is a second perspective view showing an installation structure of a discharge vane according to an embodiment of the present invention.
5 is a third perspective view illustrating a coupling structure of links and vanes shown in FIG. 3;
FIG. 6 is an operation example diagram of the discharge vane shown in FIG. 5 .
7 is a front view showing a coupling structure of links and gears according to a second embodiment of the present invention.
FIG. 8 is a view illustrating an operation of the discharge vane shown in FIG. 7 .

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

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

FIG. 1 is a perspective view of an air conditioner indoor unit according to an embodiment of the present invention, and FIG. 2 is a cutaway perspective view of FIG. 1 .

<Configuration of indoor unit>

The indoor unit of the air conditioner according to the present embodiment includes a case 100 having a suction port 101 and a discharge port 102, an indoor heat exchanger 130 disposed inside the case 100, and the case 100. An indoor blowing fan 140 is disposed inside and flows air through the suction port 101 and the discharge port 102 .

<Configuration of case>

In this embodiment, the case 100 is fixed to the ceiling of the room, covers the case housing 110 formed by opening the lower side, and covers the open surface of the case housing 110 and is exposed to the room, and the suction port 101 and a cover panel 120 having a discharge port 102 formed thereon.

Unlike the present embodiment, the cover panel 120 may be integrally formed with the case housing 110 and may be formed such that the upper side is open. The case 100 may be implemented in various ways according to manufacturing forms, and the configuration of the case 100 does not limit the spirit of the present invention.

The inlet 101 is disposed at the center of the cover panel 120, and the outlet 102 is disposed around the inlet 101. The number of suction ports 101 or the number of discharge ports 102 is irrelevant to the spirit of the present invention. In this embodiment, one suction port 101 is formed, and a plurality of discharge ports 102 are disposed.

In this embodiment, the suction port 101 is formed in a rectangular shape when viewed from the bottom, and four discharge ports 102 are spaced apart from each edge of the suction port 101 by a predetermined interval.

The cover panel 120 further includes a suction grill 122 covering the suction port 101 , and the suction grill 122 is detachably installed from the cover panel 120 .

A pre-filter 124 is disposed above the suction grill 122 , and the pre-filter 124 filters air sucked into the case 100 .

The discharge port 102 is formed in the form of a long slit, and a discharge vane 200 that opens and closes the discharge port 102 is disposed.

<Configuration of indoor heat exchanger>

The indoor heat exchanger 130 is disposed between the suction port 101 and the discharge port 102 , and the indoor heat exchanger 130 partitions the inside of the case 100 . The indoor heat exchanger 130 is vertically disposed in this embodiment.

The indoor heat exchanger 130 is disposed so that the air discharged from the indoor blowing fan 140 enters vertically.

A drain pan 132 is installed inside the case 100, and the indoor heat exchanger 130 is mounted on the drain pan 132. The condensed water generated in the indoor heat exchanger 130 may be stored after flowing into the drain pan 132 . A drain pump (not shown) is disposed in the drain pan 132 to discharge the collected condensed water to the outside.

The drain pan 132 may have an inclined surface having a direction to collect and store the condensed water flowing down from the indoor heat exchanger 130 on one side.

<Configuration of indoor ventilation fan>

The indoor blowing fan 140 is located inside the case 100 and is disposed above the inlet 101 . The indoor blowing fan 140 is a centrifugal blower that sucks air in the center and discharges air in the circumferential direction.

The indoor blowing fan 140 includes a bell mouth 142 , a fan 144 and a fan motor 146 .

The bell mouth 142 is disposed above the suction grill 122 and guides the air passing through the suction grill 122 to the fan 144 .

The fan motor 146 rotates the fan 144 .

<Configuration of Euro>

The space on the side of the indoor blower fan 140 of the indoor heat exchanger 130 is defined as the suction passage 103, and the space outside of the indoor heat exchanger 130 (indoor heat exchanger 130 and case housing 110) ) between) is defined as the discharge passage 104.

The suction passage 103 communicates with the suction port 101 , and the discharge passage 104 communicates with the discharge port 103 .

Air flows from the lower side of the suction passage 103 to the upper side, and flows from the upper side of the discharge passage 104 to the lower side.

The inlet 101 and the outlet 102 are formed on the same surface of the cover panel 120 .

The suction port 101 and the discharge port 102 are disposed to face the same direction. In this embodiment, the suction port 101 and the discharge port 102 are disposed toward the floor of the room.

When the cover panel 120 is curved, the discharge port 102 may be formed with a slight side slope, but the discharge port 102 connected to the discharge passage 104 is formed to face downward.

A discharge vane 200 is disposed to control the direction of air discharged through the discharge port 102 .

3 is a first perspective view showing a discharge vane according to an embodiment of the present invention, FIG. 4 is a second perspective view showing an installation structure of the discharge vane according to an embodiment of the present invention, and FIG. 5 is FIG. 3 is a third perspective view showing a coupling structure of links and vanes shown in , and FIG. 6 is an operation example of the discharge vane shown in FIG. 5 .

For explanation, the direction in which the air is discharged is defined as forward, and the opposite direction is defined as rear. Also, the ceiling side is defined as the upper side, and the floor side is defined as the lower side. In addition, the side where the vane motor is installed in the discharge vane is defined as one side (right side), and the other side is defined as the other side (left side).

In this embodiment, a discharge cover 150 having the discharge port 102 is disposed on the cover panel 120 . The discharge cover 150 is assembled to the cover panel 120 . A discharge port 102 is formed in the discharge cover 150, and the discharge vane 200 is installed.

In this embodiment, four discharge covers 150 are provided, and each is disposed at an edge of the cover panel 120 .

<Configuration of discharge vane>

The discharge vane 200 is installed in the discharge passage 104 and controls the flow direction of the air discharged through the discharge port 102 .

The discharge vane 200 is disposed on the discharge port and has a first vane 210 guiding the flow direction of air and a second vane rotatably coupled to the case 100 through a second vane shaft 241. A vane 240, a vane motor 220 installed in the case 100 and providing a driving force to rotate the first vane 210 and the second vane 240, and the vane motor 220 It includes a link assembly that transmits rotational force to the first vane 210 and the second vane 240 .

The link assembly includes a first link 320 coupled to the first vane 210, a second link 340 coupled to the second vane 240, and fixed to the first link 320. The first gear 310, the second gear 330 fixed to the second link 340, coupled to the vane motor 220, the first gear 310 and the second gear 330 and a motor gear 350 meshed with each other.

In this embodiment, when the indoor unit is not operating, the second vane 240 covers most of the outlet 102 .

The first vane 210 is rotated by the first link 320 . The second vane 240 is rotated by the second link 340 .

The motor gear 350 simultaneously rotates the first gear 310 and the second gear 330 . To this end, the motor gear 350 maintains a meshed state with the first gear 310 and the second gear 330 at the same time.

The first gear 310, the second gear 330, and the motor gear 350 are disposed in the longitudinal direction of the first vane 210 and the second vane 240 (left-right direction in this embodiment).

The central axis directions of the first gear 310, the second gear 330, and the motor gear 350 are parallel to the longitudinal directions (left and right directions in this embodiment) of the vanes 210 and 240. The axial directions (left and right directions in this embodiment) of the first gear 310, the second gear 330, and the motor gear 350 are arranged in parallel.

The axial directions of the first gear 310, the second gear 330, and the motor gear 350 intersect with the rotational directions of the vanes 210 and 240.

Since the motor gear 350 maintains a meshed state with the first gear 310 and the second gear 330 at the same time, when viewed from a top view, the motor gear 350 is the first gear 310 and the second gear 350. It overlaps with 2 gears 330.

The gears 310, 330, and 350 are disposed between the vanes 210 and 240 and the vane motor 220. A motor case 360 to be described later is disposed to provide an installation space for the gears 310, 330, 350 and the vane motor 220.

In this embodiment, the first gear 310, the second gear 330 and the motor gear 350 are all made of pinion gears.

The motor gear 350 is made of a pinion gear, and is directly coupled to the motor shaft of the vane motor 220 to rotate.

The first gear 310 is made of a pinion gear and meshes with the motor gear 350 . The second gear 330 is made of a pinion gear and meshes with the motor gear 350 .

In this embodiment, the first gear 310 and the second gear 330 are located below the motor gear 350 . Unlike this embodiment, the first gear 310 and the second gear 330 may be positioned above the motor gear 350.

And, in this embodiment, the first gear 310 is disposed closer to the vane motor 220 than the second gear 330 . This is an arrangement considering the connection structure of the links 320 and 340.

One end 321 of the first link 320 is coupled to the first vane 210 and the other end 322 is coupled to the first gear 310 . The first link 320 and the first vane 210 maintain a coupled state without causing relative rotation.

Therefore, when the first gear 310 rotates, the first vane 210 is rotated with respect to the central axis of the first gear 310 .

The first link 320 is formed to extend long in the air discharge direction (front and rear direction in this embodiment). The first link 320 includes a link body 325 formed to be extended to connect the first vane 210, and one end 321 of the link body 325 toward the first vane 210. It is formed to protrude, and the other end 322 is formed to protrude toward the vane motor 220. The one end 321 and the other end 322 are formed to be orthogonal to the longitudinal direction of the link body 325 (front and rear direction in this embodiment).

The first link 320 is manufactured in a curved shape to avoid interference with the motor gear 350 . In this embodiment, since the first link 320 is disposed below the motor gear 350, a curved portion 323 bent downward is formed. The curved part 323 is disposed in the middle of the link body 325 .

One end of the second link 340 is coupled to the second vane 240 and the other end is coupled to the second gear 330 . The second link 340 and the second vane 240 maintain a coupled state without generating relative rotation. When the second gear 330 rotates, the second vane 240 rotates with respect to the central axis of the second gear 330 .

In this embodiment, the second link 340 is disposed on the axial center of the second gear 330. The second vane 240 rotates around the second link 340 . The second link 340 provides a center of rotation of the second vane 240 . The second vane 240 rotates in place around the second link 340 . The center of rotation of the second vane 240 is located on the second vane 240 .

On the other hand, since the first vane 210 is rotated around the other end 322 of the first link 320, the center of rotation of the first vane 210 is outside the first vane 210. is located

In this embodiment, a motor case 360 is disposed on the discharge cover 150 to install the vane motor 220, the first gear 310, the second gear 330, and the motor gear 350. The vane motor 220 is fixed to the motor case 360, and the motor case 360 is assembled to the discharge cover 150.

In this embodiment, the vane motor 220, the first gear 310, the second gear 330, and the motor gear 350 are disposed on the right side of the discharge port 102, and the first vane 210 on the left side. And a separate component for rotating the second vane 240 is not disposed.

On the right side of the discharge port 102, only the first link 320 and the second link 340 providing rotational centers of the first vane 210 and the second vane 240 are disposed. One side (left side) of the first link 320 disposed on the right side of the discharge port 102 is rotatably coupled to the discharge cover 150 and the other side (right side) is fixed to the first vane 210. The second link 340 disposed on the right side of the discharge port 102 has one side rotatably coupled to the discharge cover 150 and the other side fixed to the second vane 240 .

In this embodiment, the motor case 360 is located on the right side of the discharge port 102. Unlike this embodiment, the motor case 360 may be disposed on the left side of the discharge port 102 .

The motor case 360 blocks the discharge of the vane motor 220 , the first gear 310 , the second gear 330 , and the motor gear 350 to the outlet 102 . In this embodiment, the vane motor 220, the first gear 310, the second gear 330, and the motor gear 350 are hidden inside the motor case 360, and the first link 320 and Only 2 links 340 are exposed to the user.

The motor case 360 accommodates the vane motor 220 therein, is formed by being connected to a motor accommodating housing 370 to which the vane motor 220 is fixed, and the motor accommodating housing 370. It includes a gear accommodation housing 380 in which at least one of the first gear 310 and the second gear 330 is accommodated.

In this embodiment, the motor housing 370 is formed so that the right side is open and the left side where the discharge port 102 is located is closed. In addition, the motor housing 370 is formed such that the upper side is open and the lower side is closed.

So, the motor housing 370 has a side wall 371 positioned on the discharge port 102 side, a front wall 372 connected to the side wall 371 and positioned on the front side, and the side wall 371 ) and a rear wall 373 connected to the rear wall, and a bottom wall 374 connected to the side wall 371 and positioned on the bottom side.

The upper and right sides of the motor housing 370 are formed open.

The vane motor 220 is located on the inner side 375 formed by the side wall 371, the front wall 372, the rear wall 373 and the bottom wall 374, and is fixed to the side wall 371 .

Since the motor accommodating housing 370 is disposed on the right side of the discharge port 102 , the sidewall 371 covers the left side of the motor accommodating housing 370 .

A first hole 376 through which the motor gear 350 passes and a second hole 377 through which one end 322 of the first link 320 passes are formed in the sidewall 371 .

The first hole 376 and the second hole 377 are formed in the left and right directions.

The motor gear 350 passes through the first hole 376 and is disposed across the sidewall 371 . In this embodiment, the second gear 330 is positioned on the side of the links 210 and 240 based on the sidewall 371, and on the side of the vane motor 220 based on the sidewall 371. The first gear 310 is positioned.

That is, the second gear 330 is positioned on the left side of the sidewall 371, and the first gear 310 is positioned on the right side. The motor gear 350 is disposed over the left and right sides of the sidewall 371 to mesh simultaneously with the first gear 310 and the second gear 330 .

The second hole 377 is formed to connect the first gear 310 located on the inner side 375 of the motor case 360 and the first link 320.

The other end 322 of the first link 320 passes through the second hole 377 and is coupled to the first gear 310 .

Meanwhile, the gear housing 380 blocks exposure of the motor gear 350 and the second gear 330 to the user. In order to prevent the gears from being exposed to the outside, the gear accommodation housing 380 is disposed further left with respect to the sidewall 371 .

The gear housing 380 includes a side cover 381, a rear cover 383, and a bottom cover 384.

The top, front, and right sides of the gear housing 380 are open. At least one of the side cover 381 , the rear cover 383 , and the bottom cover 384 may be connected to the motor housing 370 . In this embodiment, the rear cover 383 is coupled to the sidewall 371 of the motor housing 370.

In this embodiment, the motor housing 370 and the gear housing 380 are integrally manufactured. Unlike the present embodiment, it may be separately manufactured and assembled.

The bottom cover 384 and the sidewall 371 are spaced apart at a predetermined interval in the left and right directions and form a gap G for rotation of the first link 320 .

A third hole 386 through which the second link 340 passes is formed in the side cover 381 . The second link 340 passes through the third hole 386 and couples the second gear 330 and the second vane 240 . The second link 340 is supported and rotated in the third hole 386 .

When the first link 320 rotates, it may be exposed to the lower side of the motor housing 360 through the gap G.

<Composition of vane>

In this embodiment, a first vane 210 and a second vane 240 are disposed to control the flow direction of the air discharged from the outlet 102 . The first vane 210 and the second vane 240 may provide horizontal wind, vertical wind, and inclined wind.

<Configuration of the 1st vane>

The first vane 210 has a first vane body 212 formed to extend long in the longitudinal direction of the discharge port 102 and protrudes upward from the first vane body 212, and the first link 310 ) and a coupling flange 214 coupled with it.

The first vane body 212 may be formed in a gentle curved surface.

The first vane body 212 controls the direction of air discharged along the discharge passage 104 . The discharged air collides with the upper or lower surface of the first vane body 212 to guide the flow direction. In the case of horizontal wind, the discharged air is guided along the upper side, and in the case of vertical wind, the air is guided along the lower side.

The flow direction of the discharged air and the longitudinal direction of the first vane body 212 cross or cross each other.

A plurality of grooves (not shown) may be formed on the upper surface of the first vane body 212 . The groove is formed in the longitudinal direction of the first vane body 212 . The groove is located between the plurality of coupling flanges 214 .

The coupling flange 214 is coupled to the first link 320 . The coupling flange 214 is disposed on one side and the other side of the discharge vane, respectively.

The coupling flange 214 is formed by protruding upward from the upper side of the first vane body 212 . The coupling flange 214 is preferably formed along the flow direction of the discharged air. Therefore, the coupling flange 214 is disposed orthogonally or crossing the longitudinal direction of the first vane body 212 .

The coupling flange 214 is positioned between the side cover 381 and the side wall 371 when viewed from a top view.

<Configuration of the 2nd vane>

The second vane 240 has a second vane body 242 formed to extend long in the longitudinal direction of the discharge port 102, and protrudes upward from the second vane body 242, and the connection link 36 And a second coupling flange 244 coupled to be relatively rotatable.

The second vane body 242 may be formed in a gently curved surface.

The second vane body 242 controls the direction of air discharged along the discharge passage 104 . The discharged air collides with the upper or lower surface of the vane body 212 to guide the flow direction. The flow direction of the discharged air and the longitudinal direction of the second vane body 242 cross or cross each other.

When viewed from a top view, the second vane body 242 may be positioned between the first coupling flanges 212 of the first vane 210 . The coupling flange 244 is located on the left side of the side cover 381 when viewed from a top view.

The second coupling flange 244 is an installation structure for coupling with the second link 340 . The second coupling flange 244 is disposed on one side and the other side of the discharge vane, respectively.

The second coupling flange 244 is formed by protruding upward from the upper side of the second vane body 242 . The second coupling flange 244 is preferably formed along the flow direction of the discharged air. Therefore, the second coupling flange 244 is disposed to cross or orthogonal to the longitudinal direction of the second vane body 242 .

FIG. 6 is an operation example diagram of the discharge vane shown in FIG. 5 .

An operating process of the discharge vane will be described with reference to FIG. 6 .

The gear ratio of the first gear 310 and the second gear 330 according to the first embodiment of the present invention is 1:1.

That is, the number of teeth of the first gear 310 and the second gear 330 is the same. Since the gear ratios of the first gear 310 and the second gear 330 are the same, when the motor gear 350 rotates, the first gear 310 and the second gear 330 rotate identically.

In the state (a) of FIG. 6 , the discharge vane 200 is in a non-operating state. When the indoor unit is not operating, the discharge vane 200 maintains a state as shown in (a) of FIG. 6 .

In this embodiment, the first vane 210 and the second vane 240 are arranged in a line, and the first vane 210 is in close contact with the bottom surface of the discharge cover 150 or cover panel 120, The second vane 240 covers the discharge port 102 .

The lower surface of the second vane 240 forms a continuous surface with the cover panel 120 .

When the indoor unit is not operating, since the second vane 240 covers the outlet 102, the first link 320 and the second link 340 are in a concealed state when viewed from the outside.

Since the bottom surface of the discharge cover 150 is inclined toward the suction port, the first vane 210 and the second vane 240 form a predetermined angle.

In this embodiment, the first vane 210 and the second vane 240 are disposed in a line, and the direction from the second vane 240 toward the first vane 210 is disposed upward.

In the state (b) of FIG. 6 , the discharge vane 200 may generate horizontal wind.

The horizontal wind is defined as a state in which the air discharged from the outlet 102 is guided by the second vane 240 and the first vane 210 and flows in a generally horizontal direction with the ceiling or the ground. In the case of flowing the discharged air as a horizontal wind, the flow distance of the air can be maximized.

The horizontal wind only means that the discharged air flows substantially horizontally with the ground or ceiling, but does not mean that it flows exactly in the horizontal direction.

In the state of FIG. 6 (a), the vane motor 220 rotates the motor gear 350 counterclockwise to form the state of FIG. 6 (b).

When the motor gear 350 rotates counterclockwise, the first gear 310 and the second gear 330 meshed with the motor gear 350 rotate clockwise at the same time.

Since the gear ratios of the first gear 310 and the second gear 330 are the same, the rotation angles of the first vane 210 and the second vane 240 are the same.

Since (a) of FIG. 6 is disposed to face upward, the operation of the vane motor 220 horizontally arranges the second vanes 240 and the first vanes 210 arranged in a row to generate horizontal wind. can provide.

When the first vane 210 and the second vane 240 are further rotated in a clockwise direction in the state of FIG. 6 (b), the state shown in (c) of FIG. 6 may be formed.

The discharge vane 200 of FIG. 6 (c) may discharge discharge air in an inclined direction between vertical and horizontal. In this embodiment, this is defined as an inclined wind.

When providing the inclined wind, the first vane 210 and the second vane 240 form an inclination between horizontal and vertical with respect to the ground. When providing the inclined wind in this embodiment, the first vane 210 and the second vane 240 provide an inclination angle between 20 degrees and 50 degrees with respect to the ground or ceiling. When providing inclined wind, the inclined direction of the first vane 210 and the second vane 240 faces the ground.

When the first vane 210 and the second vane 240 are further rotated in a clockwise direction in the state of FIG. 6 (c), the state shown in FIG. 6 (d) can be formed.

In the state as shown in (d) of FIG. 6, the discharge vane 200 may generate vertical wind. A state in which the air discharged through the outlet 102 is guided by the second vane 240 and the first vane 210 and flows downward in the vertical direction is defined as vertical wind.

When forming the vertical wind, the first vane 210 and the second vane 240 intersect or orthogonal to the ceiling or the ground and are arranged in a vertical direction.

Through the shapes of the gears 320, 340, 350 and the first and second links 310, 330, the first vane 210 and the second vane 240 are precisely perpendicular to the ground. can be placed.

In this embodiment, instead of being arranged exactly perpendicular to the ground, an angle between the ground and the ceiling of approximately 60 degrees to 80 degrees is formed.

If vertical wind is provided, air conditioning can be provided for a narrow range because discharged air is discharged substantially vertically toward the ground.

FIG. 7 is a front view showing a coupling structure of links and gears according to a second embodiment of the present invention, and FIG. 8 is an operation example of the discharge vane shown in FIG. 7 .

Unlike the first embodiment, the discharge vane 200 according to this embodiment has a gear ratio of the first gear 310 and the second gear 330 of 2:1. That is, in this embodiment, the gear ratios of the first gear 310 and the second gear 330 are formed differently, so that the rotation angles of the first vane 210 and the second vane 240 can be formed differently from each other. there is.

In this embodiment, the gear ratio of the first gear 310 and the second gear 330 is 2: 1, so that when the motor gear 350 rotates, the second gear 330 rotates more. As such, when the number of teeth of the first gear 310 is greater than the number of teeth of the second gear 330, when the motor gear 350 rotates, the second vane 240 rotates the first vane 210. ) rotated more than

The state of FIG. 8 (a) is the same as that of FIG. 6 (a).

In the state (b) of FIG. 8 , the first vane 210 and the second vane 240 of the discharge vane 200 may generate horizontal wind at different angles.

In the state of FIG. 8 (a), the motor gear 350 is rotated to form FIG. 8 (b). When the motor gear 350 rotates, the second gear 330 rotates twice as much as the first gear 310 .

In (b) of FIG. 8 , the first vane 210 is disposed horizontally and is disposed parallel to the ground or ceiling, and the second vane 240 is disposed to face more downward than the first vane 210 .

Next, in the state of FIG. 8 (b), the motor gear 350 is further rotated to form FIG. 8 (c). In (c) of FIG. 8, the discharge vane provides an inclined wind.

When providing an inclined wind, the first vane 210 and the second vane 240 are arranged so that both ends face the ground. The second vane 240 is more inclined than the first vane 210 .

Next, in the state of FIG. 8 (c), the motor gear 350 is rotated to form FIG. 8 (d). In (d) of FIG. 8, the discharge vane provides vertical wind.

When providing vertical wind, in this embodiment, the second vane 240 is disposed substantially perpendicular to the ground, and forms an inclination angle of approximately 45 degrees toward the ground of the first vane 210.

As such, the discharge vane according to the present embodiment forms gear ratios of the first gear 310 and the second gear 330 differently, so that the first vane 210 and the second vane connected to the gears 310 and 330 are formed differently. The position and angle of 240 may be arranged differently.

Since the rest of the configuration is the same as that of the first embodiment, a detailed description thereof will be omitted.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above embodiments and can be manufactured in a variety of different forms, and those skilled in the art in the art to which the present invention belongs A person will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

100: case 101: inlet
102: discharge port 103: suction flow path
104: discharge flow path 110: case housing
120: cover panel 130: indoor heat exchanger
140: indoor blowing fan 200: discharge vane
210: first vane 220: vane motor
240: second vane 310: first gear
320: first link 330: second gear
340: second link 350: motor gear

Claims (12)

In the indoor unit of the air conditioner installed on the ceiling,
The indoor unit includes a case in which a suction port and a discharge port are formed on a lower surface;
A discharge vane disposed in the case and guiding a flow direction of the discharge air discharged from the discharge port;
The discharge vane,
a first vane located at a front side with respect to the discharge port and guiding a flow direction of air;
a second vane positioned at a rear side with respect to the discharge port and rotatably coupled to the case through a second vane shaft coupled to the case;
a vane motor installed in the case and providing a driving force for rotating the first vane and the second vane;
a motor gear connected to and rotated by the vane motor;
a first gear engaged with the motor gear and connected to the first vane to rotate the first vane;
A second gear meshed with the motor gear and connected to the second vane to rotate the second vane;
The first gear and the second gear are disposed so that rotational axes are positioned on the same line. The method of claim 1,
a first link having one end coupled to the first vane and the other end coupled to the first gear; and
An indoor unit of an air conditioner comprising: a second link having one end coupled to the second vane and the other end coupled to the second gear. The method of claim 1,
The first gear and the second gear are positioned below the motor gear. The method of claim 1,
a first link having one end coupled to the first vane and the other end coupled to the first gear; And a second link having one end coupled to the second vane and the other end coupled to the second gear;
The first link is positioned below the motor gear and further includes a curved portion bent downward. The method of claim 1,
When viewed from a top view, at least a portion of the first gear and the second gear are arranged to overlap the motor gear. The method of claim 2,
Located on one side of the discharge port, assembled to the case, the vane motor, first gear, second gear and motor gear are installed, and the vane motor, first gear, second gear and motor gear cover the discharge port An indoor unit of an air conditioner further comprising a motor case that blocks exposure to the outside through a motor case. The method of claim 6,
The motor case,
a motor accommodating housing in which the vane motor is accommodated and the vane motor is fixed; An indoor unit of an air conditioner comprising: a gear housing housing connected to the motor housing housing and receiving at least one of the first gear and the second gear. The method of claim 7,
The motor housing housing further includes a first hole formed in an axial direction of the vane motor,
The motor gear penetrates the first hole and is disposed across the motor housing and the gear housing. The method of claim 7,
The motor housing housing further includes a first hole and a second hole formed in the axial direction of the vane motor,
The gear housing housing further includes a third hole formed in the axial direction of the vane motor,
The motor gear passes through the first hole and is disposed over the motor housing and the gear housing,
The first gear is disposed inside the motor housing,
The second gear is disposed inside the gear housing,
The first link is coupled to the first gear through the second hole,
The second link is coupled to the second gear through the third hole. The method of claim 7,
A predetermined gap is formed between the motor housing and the gear housing,
An indoor unit of an air conditioner exposed to the outside of the motor case through the gap when the first link rotates. The method of claim 1,
The first gear and the second gear have the same gear ratio,
Even when the vane motor rotates, the first vane and the second vane are positioned on the same plane. The method of claim 1,
The first gear and the second gear have different gear ratios,
As the vane motor rotates, the first vane and the second vane rotate at different angles.

Images