KR102425866B1 - Method for controlling air conditioner - Google Patents

Abstract

The present invention is a case in which the suction port and the discharge port are formed on the bottom; It includes; a discharge vane disposed in the case and guiding the flow direction of the discharge air discharged from the discharge port; ; a second vane positioned on the rear side with respect to the outlet and rotatably coupled to the case through a second vane shaft coupled to the case; In the control method of the air conditioner comprising; a vane motor installed in the case and providing a driving force to rotate the first vane and the second vane, the cooling operation step (S10); After the step S10, determining whether the discharge angle of the discharge vane is a horizontal wind that causes the air discharged from the discharge port to flow in a horizontal direction with the ceiling or the ground (S20); if the step S20 is satisfied, determining whether the step S10 exceeds the cooling operation time (S30); if the S30 is satisfied, determining whether the relative humidity of the indoor air is equal to or greater than a reference value (S40); If the step S40 is satisfied, changing the angle of the discharge vane (S50); determining whether a change time has elapsed after the step S50 (S60); and returning to the step S30 when the S60 is satisfied.
The present invention has the advantage of being able to prevent or remove dew formation of the first vane or the second vane when the discharge vane is operated in a horizontal wind.

Description

Method for controlling air conditioner

The present invention relates to a method for controlling an air conditioner, and more particularly, to a method for controlling a ceiling type indoor unit installed on a ceiling in 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.

Structurally, the air conditioner is divided into a separate type in which the compressor is disposed outdoors and an integral type in which the compressor is integrally manufactured.

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

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

The separation type air conditioner is generally classified according to an installation form of the indoor unit.

When the indoor unit is installed vertically in the indoor space, it is called a stand-type air conditioner, when the indoor unit is installed on the wall of the room is called a wall-mounted air conditioner, and when the indoor unit is installed on the ceiling of the room, it is called a ceiling-type indoor unit.

Also, as a type of a 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 the system air conditioner, there are a type in which a plurality of indoor units are provided to air-condition a room, and a type in which air-conditioned air is supplied to each space through a duct.

The plurality of indoor units provided in the system air conditioner may be any 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 a discharge port, and a rotation angle of the vane is adjusted to control the flow direction of the discharged air.

JP 5611694 B2

An object of the present invention is to provide a control method of an air conditioner capable of minimizing dew formation on the vanes in an indoor unit having vanes arranged to implement vertical and horizontal winds.

An object of the present invention is to provide a method for controlling an air conditioner that selectively operates according to the humidity of the room to suppress dew formation on the vanes.

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

The present invention is a case in which the suction port and the discharge port are formed on the bottom; It includes; a discharge vane disposed in the case and guiding the flow direction of the discharge air discharged from the discharge port; ; a second vane positioned on the rear side with respect to the outlet and rotatably coupled to the case through a second vane shaft coupled to the case; In the control method of an air conditioner comprising a; a vane motor installed in the case and providing a driving force to rotate the first vane and the second vane,

cooling operation (S10); After the step S10, determining whether the discharge angle of the discharge vane is a horizontal wind that causes the air discharged from the discharge port to flow in a horizontal direction with the ceiling or the ground (S20); if the step S20 is satisfied, determining whether the step S10 exceeds the cooling operation time (S30); if the S30 is satisfied, determining whether the relative humidity of the indoor air is equal to or greater than a reference value (S40); If the step S40 is satisfied, changing the angle of the discharge vane (S50); determining whether a change time has elapsed after the step S50 (S60); and returning to the step S30 when the S60 is satisfied.

When at least one of S20, S30, S40, and S60 is not satisfied, the current angle of the discharge vane may be maintained.

When forming the horizontal wind, the first vane and the second vane may contact or overlap, and the first vane and the second vane may be connected to form one horizontal wind guide surface.

In step S50, the first vane and the second vane may be separated by operating the vane motor.

In order to provide the horizontal wind, the front end of the second vane and the rear end of the first vane are contacted or overlapped in the vertical direction, and in step S50, the front side of the second vane is operated by operating the vane motor. The end and the rear end of the first vane may be spaced apart.

If the S20 is not satisfied, the current angle of the discharge vane may be maintained, and the process may be returned to the step S10.

If the S30 is not satisfied, the current angle of the discharge vane may be maintained, and the process may be returned to the step S30.

If the S40 is not satisfied, the current angle of the discharge vane may be maintained, and the process may be returned to the step S40.

If the S60 is not satisfied, the current angle of the discharge vane may be maintained, and the process may be returned to the step S60.

The control method 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 prevent or remove dew formation of the first vane or the second vane when the discharge vane is operated in a horizontal wind.

Second, the present invention has the advantage of preventing dew formation of the first and second vanes by separating the first and second vanes that are in contact or overlap each other for a predetermined cooling operation time when operating in horizontal wind. There is this.

Third, the present invention has the advantage that it is possible to determine the control of the discharge vanes for preventing dew formation based on the relative humidity of the room, and through this, it is possible to minimize unnecessary changes in the discharge angle of the discharge vanes.

1 is a perspective view illustrating an indoor unit of an air conditioner according to an embodiment of the present invention.
FIG. 2 is a cut-away perspective view of FIG. 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 from another angle showing a discharge vane according to an embodiment of the present invention.
FIG. 5 is a plan view of FIG. 4 .
Figure 6 is a perspective view of the joint link shown in Figure 3;
7 is an exploded perspective view of FIG. 6 ;
8 is an exemplary view of the operation of the joint link shown in FIG.
9 is an exemplary operation view of the discharge vane shown in FIG.
10 is a block diagram for controlling a discharge vane of the air conditioner according to the first embodiment of the present invention.
11 is a flowchart illustrating a control method of the air conditioner according to the first embodiment of the present invention.
12 is a flowchart illustrating a control method of an air conditioner according to a second embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become 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 different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

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

1 is a perspective view illustrating an indoor unit of an air conditioner 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 an inlet 101 and an outlet 102 formed therein, an indoor heat exchanger 130 disposed inside the case 100 , and the case 100 . It is disposed inside and includes an indoor blowing fan 140 for flowing air to the inlet 101 and the outlet 102 .

<Case configuration>

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

Unlike the present embodiment, the cover panel 120 may be formed integrally with the case housing 110 and may be formed so that the upper side thereof is opened. The case 100 may be implemented in various ways depending on the manufacturing form, and the configuration of the case 100 does not limit the spirit of the present invention.

The suction port 101 is disposed at the center of the cover panel 120 , and the discharge port 102 is disposed around the suction port 101 . The number of the suction ports 101 or the number of the 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 the discharge ports 102 are disposed.

In this embodiment, the inlet 101 is formed in a rectangular shape when viewed from the bottom, and four outlets 102 are spaced apart from each edge of the inlet 101 by a predetermined distance.

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

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

The discharge port 102 is formed in the form of a long slit, and a discharge vane 200 for opening and closing the discharge port 102 is disposed.

<Configuration of indoor heat exchanger>

The indoor heat exchanger 130 is disposed between the inlet 101 and the outlet 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 flow to the drain pan 132 and then be stored. A drain pump (not shown) for discharging the collected condensed water to the outside is disposed in the drain pan 132 .

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

<Configuration of indoor blower fan>

The indoor blowing fan 140 is located inside the case 100 and is disposed above the suction port 101 . The indoor blower 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>

For the indoor heat exchanger 130 , a space on the side of the indoor blowing fan 140 is defined as a suction passage 103 , and an outer space (indoor heat exchanger 130 and case housing 110 ) with respect to the indoor heat exchanger 130 . ) is defined as the discharge flow path 104 .

The suction flow path 103 communicates with the suction port 101 , and the discharge flow path 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 to the lower side of the discharge passage 104 .

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 to face the floor of the room.

When the cover panel 120 is curved, the discharge port 102 may be formed to have a slight side inclination, 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 the 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 a discharge vane according to an embodiment of the present invention from another angle, and FIG. 5 is FIG. is a plan view of, FIG. 6 is a perspective view of the joint link shown in FIG. 3, and FIG. 7 is an exploded perspective view of FIG.

<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, a first vane 210 for guiding the flow direction of air, and a second vane shaft 241 rotatably coupled to the case 100 through a second A vane 240, a vane motor 220 installed in the case 100, providing a driving force to rotate the first vane 210 and the second vane 240, and the first vane 210 And a joint link 320 for rotatably connecting the case 100, respectively, and the first vane 210 and the first rigid link shaft 311 are coupled to be rotatable relative to each other, and the case 100 and A rigid link (310, rigid link) coupled to be relatively rotatable through a second rigid link shaft 312, connected to the vane motor, and rotated by receiving a driving force of the vane motor 220, and the second The vane 240 and the rigid link 310 are respectively coupled to be rotatable, and a connection link 360 for rotating the second vane 240 according to the rotation of the rigid link 310 is included.

In the present embodiment, when the indoor unit is not operated, the first vane 210 covers most of the discharge port 210 . Unlike the present embodiment, the first vane 210 may be manufactured to cover the entire outlet 210 .

The first vane 210 is rotated by the rigid link 310 and the joint link 320 .

The second vane 240 is rotated by the connection link 360 connected to the rigid link 310 .

The rigid drink 310 and the joint link 320 may be installed in the case 100 , but in this embodiment, they are installed in the motor case 105 disposed on the discharge passage 104 . In this embodiment, the joint link 320 is formed longer than the rigid link 310 .

The motor case 105 is disposed in the air discharge direction. In the present embodiment, the motor case 105 may be installed in the cover panel 120 or the case housing 110 forming the discharge passage 104 . Unlike the present embodiment, the motor case 105 may be formed to protrude toward the discharge passage 104 of the cover panel 120 or the case housing 110 .

The motor case 105 is disposed to cross or orthogonal to the longitudinal direction of the first vane 210 . The motor case 105 may be disposed at one end and the other end in the longitudinal direction of the first vane 210 , respectively. The motor case 105 is formed in a plate shape.

The first vane 210 may be spaced apart from the motor case 105 by a predetermined distance in the longitudinal direction of the first vane 210 , and the first vane 210 may be accommodated in the outlet 102 . .

A vane motor installation part 106 to which the vane motor 220 is assembled protrudes from the outside (the vane motor side) of the motor case 105 . The vane motor 220 is fastened to the vane motor installation part 106 and fixed.

The rigid link 310 and the joint link 320 are respectively disposed at one end and the other end of the first vane 210 .

The vane motor 220 may be disposed on at least one of one end or the other end of the first vane 210 . In this embodiment, the vane motor 220 is installed only at one end or the other end of the first vane 210 .

The vane motor 220 is disposed on the opposite side of the first vane 210 with respect to the motor case 105 . So, the driving force of the vane motor 220 is provided to any one of the rigid link 310 and the joint link 320 through the motor case 105 .

A boss for installing a link is formed on the inner side (the vane side) of the motor case 105 . The boss 230 is formed to protrude inward (the vane side).

Any one of the rigid link 310 or the joint link 320 may be installed through the boss 230 . The installed link is rotated around the boss 230 .

In this embodiment, the rigid link 310 may be coupled to the boss 230 and rotated around the boss 230 .

The vane motor 220 provides a driving force to the link coupled to the boss 230 .

In this embodiment, the rotational force of the vane motor 220 is provided to the rigid link 310 installed through the boss 230, and the rigid link 310 rotates clockwise according to the rotation direction of the vane motor 220. Alternatively, it may be rotated counterclockwise.

In this embodiment, the vane motor 220 is a step motor is used.

The boss 230 not only provides the coupling structure of the rigid link 310 but also provides a stopper function for limiting the rotation radius of the rigid link 310 .

The boss 230 is formed as a hollow 236 with an empty inside. The rigid link 310 penetrates through the hollow 236 of the boss 230 and is disposed to penetrate the motor case 105 .

The boss 230 is formed in a cylindrical shape and protrudes toward the first vane 210 .

The boss 230 has a boss stopper 232 that further protrudes toward the first vane 210 . The boss stopper 232 forms a mutual engagement when the rigid drink 310 rotates, and limits the rotation of the rigid drink 310 .

The boss stopper 232 limits the rotation angle with respect to the clockwise rotation and the counterclockwise rotation of the rigid link 310 , respectively.

In this embodiment, the boss stopper 232 limits the rotation angle of the rigid link 310 to be rotatable by approximately 270 degrees.

The boss stopper 232 forms a continuous surface with the boss 230 formed in a cylindrical shape. One end 233 and the other end 234 of the boss stopper 232 mutually interfere with the rigid link 310 .

The one end 233 is in contact with the clockwise rotation of the rigid drink 310 and limits the rotation of the rigid drink 310 . The other end 234 is in contact with the counterclockwise rotation of the rigid drink 310 , and is a portion limiting the rotation of the rigid drink 310 . The positions of the one end 233 and the other end 234 may be reversed according to design.

The boss stopper 232 is positioned on the rotational plane of the rigid drink 310, and when the rigid drink 310 is rotated, the boss stopper 232 comes into contact with the one end 233 or the other end 234 to stop the rotation. do.

A virtual plane formed when the rigid link 310 is rotated in a clockwise or counterclockwise direction is defined as a rotation plane. In this embodiment, a plurality of links are rotated, and each link forms a respective unique rotational plane.

<Configuration of the vane>

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

In this embodiment, the first vane 210 and the 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 a horizontal wind, a vertical wind, and an inclined wind.

In particular, when the horizontal wind is provided, the first vane 210 and the second vane 240 are connected and arranged as one vane. When providing the horizontal wind, the front end of the second vane 240 is close to or in contact with the rear end of the first vane 210, the first vane 210 and the second vane 240 The discharge air is guided along the upper side of the

When the discharge air discharged from the discharge port 102 is formed in a horizontal wind discharging parallel to the ceiling or the ground, the rigid drink 310, the first joint link 330 and the second joint link 340 by The first vane 210 positioned to be rotated and the second vane 240 positioned to be rotated by the rigid link 310 and the connecting link 360 form one continuous horizontal wind guide surface 201 . to form

The horizontal wind guide surface 201 is formed when the upper surface 245 of the second vane 240 and the upper surface 215 of the first vane 210 are connected. That is, when the upper surface 245 of the second vane 240 and the upper surface 215 of the first vane 210 are connected to form a horizontal wind, the two vanes form the horizontal wind like one vane. A guide surface 201 is formed.

That is, the horizontal wind guide surface 201 is composed of an upper surface 245 of the second vane 240 and an upper surface 215 of the first vane 210, and the second vane 240 and the first Distributed on the vanes (210). When the upper surface 245 of the second vane 240 and the upper surface 215 of the first vane 210 are connected, it functions as the horizontal wind guide surface 201 .

The horizontal wind guide surface 201 is the first vane and the second vane close or contact, the upper surface 245 of the second vane 240 and the upper surface 215 of the first vane 210 are continuous means to be connected to

When the first vane 210 and the second vane 240 are connected to operate as one vane, a larger amount of air may be guided in the horizontal direction through the connected area.

The first vane 210 and the second vane 240 form the horizontal wind guide surface 201, guide most of the discharged air through the horizontal wind guide surface 201, and the horizontal wind guide surface 201 In general, a state arranged in a horizontal direction with respect to the ground, the ceiling, or the bottom of the case is defined as a horizontal wind.

In the case of the horizontal wind, the discharge air flowing through the horizontal wind guide surface 201 of the first vane 210 and the second vane 240 generally flows in parallel to the ground, the ceiling, or the bottom surface of the case.

The horizontal wind is discharged substantially parallel to the ground, the ceiling, or the bottom of the case in order to flow to the furthest part of the room instead of directly supplying the discharged air to the user. The discharge air discharged as a horizontal wind may not flow accurately in the horizontal direction because a vortex may be generated during the flow process. Therefore, in this embodiment, the term "generally horizontal" or "generally parallel" is used, and the intention of the horizontal wind is to discharge air in the horizontal direction to flow the air to a far place in the room. .

In a state in which the first vane 210 and the second vane 240 are separated, most of the discharged air is guided through the upper surfaces of the first vane 210 and the second vane 240, and the first vane A state in which the 210 and the second vane 240 are installed to be inclined toward the lower side is defined as an inclined wind. In the case of the inclined wind, the horizontal wind guide surface 201 is not formed.

In a state in which the first vane 210 and the second vane 240 are separated, most of the discharged air is guided through the lower surfaces of the first vane 210 and the second vane 240, and the first A state in which the vane 210 and the second vane 240 are installed generally vertically toward the ground is defined as a vertical wind. In the case of vertical wind, the discharge air is mainly guided to the ground by striking the lower surface of the first vane 210 and the lower surface of the second vane 240 .

<Configuration of the first vane>

The first vane 210 includes a first vane body 212 formed to extend long in the longitudinal direction of the discharge port 102 , and protrude upward from the first vane body 212 , and the rigid link 310 . And it includes a coupling flange 214 to which the joint link 320 is coupled.

The first vane body 212 may be formed in a gently 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 a horizontal wind, the discharge air is guided along the upper side, and in the case of a 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 are orthogonal or intersected.

A plurality of grooves 213 are formed on the upper surface of the first vane body 212 . The groove 213 is formed in the longitudinal direction of the first vane body 212 . The groove 213 is positioned between the plurality of coupling flanges 214 .

The coupling flange 214 is an installation structure for coupling the rigid link 310 and the joint 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 to protrude upward from the upper surface of the first vane body 212 . The coupling flange 214 is preferably formed along the flow direction of the discharged air. So, the coupling flange 214 is disposed to be perpendicular to or crossed with respect to the longitudinal direction of the first vane body 212 .

The coupling flange 214 has a low air discharge direction side (front) and a high air entry direction side (rear side). In this embodiment, the coupling flange 214 is formed with a high side to which the rigid link 310 is coupled and a low side to which the joint link 320 is coupled.

The rear side end 214a of the coupling flange 214 is located further rearward beyond the rear side end 212a of the first vane body 212 . That is, the rear end 214a of the coupling flange 214 is formed to protrude toward the rear side of the first vane body 212 .

The coupling flange 214 includes a first vane coupling part 216 to which the other end of the rigid link 310 is rotatably coupled, and a second vane to which the other end of the joint link 320 is rotatably coupled. A coupling portion 217 is formed.

In this embodiment, the first vane coupling part 216 and the second vane coupling part 217 are formed in the form of a hole passing through the coupling flange 214 .

Unlike the present embodiment, the first vane coupling part 216 and the second vane coupling part 217 may have a structure capable of axial coupling or hinge coupling. For example, the first vane coupling part 216 and the second vane coupling part 217 may be manufactured in the same shape as the boss 230 .

Meanwhile, one end of the rigid link 310 is coupled to the motor case 105 , and more specifically, coupled to the boss 230 . One end of the joint link 320 is coupled to the motor case 105 . That is, one end of the rigid link 310 and one end of the joint link 320 are rotatably coupled to the motor case 105 .

The motor case 105 has a boss 230 to which one end of the rigid link 310 is rotatably coupled, and a joint link coupling part 237 to which one end of the joint link 320 is rotatably coupled. is formed

The joint link coupling portion 237 is formed in the form of a hole.

The first vane coupling part 216 is located on the rear side beyond the rear end 212a of the first vane body 212 when viewed in a plan view, and the second vane coupling part 217 is flat When viewed from above, it is positioned on the first vane body 212 .

The first vane coupling part 216 is positioned higher than the second vane coupling part 217 when viewed from the front.

So, the first vane coupling part 216 and the second vane coupling part 217 form an angle A between the link coupling parts with respect to the first vane body 212 . The link coupling portion inclination angle (a) is a structure for effectively implementing the turning motion of the first vane (210).

<Configuration of the second vane>

The second vane 240 has a second vane body 242 formed to extend long in the longitudinal direction of the outlet 102, and the second vane body 242 protrudes upward from the connecting link 36. and a second coupling flange 244 , which is relatively rotatably coupled to, and a second vane shaft 241 formed on the second vane body 242 and rotatably coupled to the case 100 .

The second vane body 242 may have a gentle 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. In the case of a horizontal wind, the discharge air is guided along the upper side, and in the case of a vertical wind, the air is guided along the lower side.

The flow direction of the discharged air and the longitudinal direction of the second vane body 242 are perpendicular or intersecting.

The second vane body 242 may be positioned between the first coupling flanges 212 of the first vane 210 . It is a configuration for preventing interference when the first vane 210 and the second vane 240 are connected to each other for horizontal wind. The front end of the second vane body 242 is positioned between the first coupling flange 214 .

A plurality of grooves 213 are formed on the upper surface of the second vane body 242 . The groove 213 is formed in the longitudinal direction of the second vane body 242 . The groove 213 is positioned between the plurality of second coupling flanges 244 .

Therefore, the length of the second vane body 242 is shorter than the length of the first vane body 212 .

The second coupling flange 244 is an installation structure for coupling the connection link 360 and the rigid link 310 . 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 with a third vane coupling portion 246 coupled to the other end of the connection link 360 and rotatably relatively. The third vane coupling part 246 is formed in a hole shape.

The second coupling flange 244 is formed to protrude upward from the upper surface of the second vane body 242 . The second coupling flange 244 is preferably formed along the flow direction of the discharged air. So, the second coupling flange 244 is disposed to be perpendicular to or crossed with respect to the longitudinal direction of the second vane body 242 .

The second vane 240 is rotated around the second vane shaft 241 . The second vane shaft 241 is formed on one side and the other side of the second vane body 242, respectively. The second vane shaft 241 protrudes from one side of the second vane body 242 toward one side of the motor case 105 . The second vane shaft 241 is located inside the case 100 , more precisely, located within the discharge passage 104 , and is located above the discharge port 102 .

A second vane coupling part 238 rotatably coupled to the second vane shaft 241 is disposed on the motor case 105 . In this embodiment, the second vane coupling part 238 is formed in the form of a hole passing through the motor case 105 .

The second vane shaft 241 is located on the rear side of the second coupling flange 244 . The rigid drink link 310 and the joint link 320 are positioned in front of the second vane shaft 241.

<Configuration of link>

In order to rotate the first vane 210 and the second vane 240, a rigid link 310, a joint link 320 and a connecting link 360 are disposed.

The rigid link 310 is disposed on the rear side compared to the joint link 320 . The connection link 360 is disposed on the rear side compared to the rigid link 310 . With respect to the direction in which the air is discharged, the connection link 360 , the rigid link 310 and the joint link 320 are arranged in order.

The rigid link 310 and the joint link 320 are used to rotate the first vane 210 . The connecting link 360 and the rigid link 310 are used to rotate the second vane 240 .

The rigid link 310 is used to rotate the first vane 210 and the second vane 240 . When forming a horizontal wind or a vertical wind, the rigid link 310 synchronizes the first vane 210 and the second vane 240 .

With respect to the rigid link 310, the joint link 320 is disposed on one side, and the connecting link 360 is disposed on the other side. Therefore, the rigid link 310, the joint link 320, and the connecting link 360 can form different rotational planes, respectively, and prevent interference during rotation.

<Configuration of Rigid Link>

The rigid drink 310 includes a rigid drink body 315 and a first rigid link shaft 311 protruding from the rigid drink body 315 to the other side and rotatably coupled to the first vane coupling part 216 . ), a second rigid drink shaft 312 that protrudes to one side from the rigid drink body 315 and is rotatably coupled to the boss 320, and the rigid drink body 315 protrudes to the other side, and the A third rigid drink shaft 313 rotatably coupled to the connection link 360, and the rigid drink body 315 protrude on the rotational plane, and form a mutual engagement with the boss stopper 232 when rotated at a predetermined angle It includes a link stopper 314 that is.

The first rigid drink shaft 311 provides a structure in which the rigid drink body 315 and the first vane 210 can be relatively rotated. In this embodiment, the first rigid drink shaft 311 is integrally formed with the rigid drink body 315 . Unlike this embodiment, the first rigid link shaft 311 may be manufactured integrally with the first vane 210 or the coupling flange 214 .

The second rigid drink shaft 312 provides a structure in which the rigid drink body 315 and the motor case 105 can be relatively rotated. In this embodiment, the second rigid drink shaft 312 is integrally formed with the rigid drink body 315 . Unlike the present embodiment, the second rigid link shaft 312 may be manufactured integrally with the motor case 105 , the cover panel 120 , or the case 100 .

The third rigid link shaft 313 provides a structure in which the connecting link 360 and the rigid link 310 can be relatively rotated. In this embodiment, the third rigid link shaft 313 is integrally formed with the rigid body 315 . Unlike this embodiment, the third rigid link shaft 313 may be manufactured integrally with the connecting link 360 .

The third rigid link shaft 313 is manufactured in the same form as the joint link shaft 341 to be described later. The third rigid link shaft 313 may be inserted into the connecting link 360 to be relatively rotated.

In this embodiment, the third rigid link shaft 313 is disposed on the link stopper 314 . The third rigid drink shaft 313 is disposed on the opposite side of the first rigid drink shaft 311 with respect to the second rigid drink shaft 312 .

Based on the second rigid drink shaft 312, the first rigid drink shaft 311 is located on the front side, and the third rigid drink shaft 313 is located on the rear side.

An imaginary straight line connecting the first rigid link shaft 311 and the second rigid link shaft 312 and the imaginary straight line connecting the second rigid link shaft 312 and the third rigid link shaft 313 are A predetermined angle E is formed. The in-between angle E is formed to be greater than 0 degrees and less than 180 degrees.

The link stopper 314 is disposed on the rotational plane of the rigid link 310 . When the rigid link 310 is rotated clockwise, the link stopper 314 comes into contact with one end 233 of the boss stopper 232, and the rotation is stopped. When the rigid link 310 is rotated counterclockwise, the link stopper 314 or the rigid link body 315 comes into contact with the other end 234 of the boss stopper 232, and the rotation is stopped.

In this embodiment, the link stopper 314 is formed to protrude to the opposite side of the joint link 320 with respect to the rigid drink body 315. In this embodiment, the link stopper 314 forms an angle E between the rigid link body 315 and the link stopper 314 .

The third rigid link shaft 313 is disposed at one end of the link stopper 314 . The link stopper 314 is formed shorter than the rigid body 315 .

<Composition of joint link>

The joint link 320 may be bent in a joint form at a specific location.

The joint link 320 is a first joint link 330 rotatably coupled to the case 100, and the first vane 210 and rotatably coupled to the first joint link 330 and also rotates. A second joint link 340 coupled to be possible, the first joint link 330 or the second joint link 340 is formed in at least one, the first joint link 330 and the second joint link It includes a joint stopper 350 for limiting the rotation angle when the relative rotation of (340).

The rotation plane of the joint link 320 is formed differently from the rotation plane of the rigid link 310 . Since the rotation planes of the joint link 320 and the rigid link 310 are different from each other, it is possible to prevent interference during operation.

The first joint link 330 is the case 100 and the second joint link 340 and the first joint link body 335 relative to each other, and the first joint link body 335 protrudes to one side. and a first joint link shaft 331 rotatably coupled to the case 100, and a first joint link shaft formed on the first joint link body 335 and rotatably coupled with the second joint link 340 1 includes a connect link unit (336).

The first joint link body 335 is rotatably coupled to the upper side of the case 100 and the lower side is rotatably coupled to the second joint link 340 .

The rotation plane of the first joint link body 335 is arranged to be parallel to the discharge direction of the air. That is, the rotation plane of the first joint link body 335 is orthogonal to the longitudinal direction of the first vane 210 .

The first joint link shaft 331 protrudes from the first joint link body 335 to one side.

The first joint link shaft 331 is coupled to the joint link coupling portion 237, and forms a center of rotation in which the first joint link body 335 can be rotated. Since the joint link coupling portion 237 is formed in the form of a hole, the first joint link shaft 331 is formed in a cylindrical structure that can be inserted into the hole.

After the first joint link shaft 331 is inserted into the joint link coupling portion 237, a hook structure is disposed so that separation is blocked. In this embodiment, the first joint link 331 includes a plurality of first link shaft body 332 and a first link hook 333 disposed at an end of the first link shaft body 332, respectively.

The first link shaft body 332 forms a part of a cylindrical shape, and the first link hook 333 has the first link shaft body 332 protruding outward in the radial direction to form a first link hook 333 . .

In this embodiment, four of the first link shaft body 332 are arranged, and these are gathered to form a cylindrical shape. Each of the first link shaft body 332 is spaced apart from each other by a predetermined interval, thereby forming a space capable of bending deformation.

The first joint link shaft 331 is elastically deformable by the material.

The first joint link shaft 331 passes through the joint link coupling portion 237 , and the first link hook 333 forms a mutual engagement with the motor case 105 .

The first joint link shaft 331 is formed with a shaft flange 338 that limits the insertion depth of the first link shaft body 332 . The shaft flange 338 is in close contact with the other side of the motor case 105 .

The first connect link portion 336 is formed to extend from the first joint link body (335). The first connect link portion 336 is formed to protrude in the longitudinal direction of the first joint link body (335).

The first connect link part 336 and the second connect link part 346 to be described later are assembled in a male and female shape. In the present embodiment, the first connect link unit 336 has a female shape and the second connect link unit 346 has a male shape. Unlike the present embodiment, the male and female shapes may be arranged oppositely.

The first connect link unit 336 and the second connect link unit 346 may be rotated relative to each other on the rotation plane of the first joint link 330 .

The first connect link unit 336 includes one side link unit body 337 and the other side link unit body 337 protruding in the longitudinal direction from one side and the other side of the first connect body 335, respectively, and the one side link unit body. It includes a joint shaft hole 339 formed in the 337 and the other link unit body 337, respectively.

A link insertion space 334 is formed between the one side link unit body 337 and the other side link unit body 337 .

The one side link unit body 337 and the other side link unit body 337 are disposed to face each other. Each joint shaft hole 339 is also disposed to face each other.

The second joint link 340 is the first vane 210 and the first joint link 330 and a second joint link body 345 relative to each other, and the second joint link body 345 in the second joint link body 345 . A second joint link shaft 341 that protrudes to the side and is rotatably coupled to the first vane 210, and is formed on the second joint link body 345 and is rotatable with the first joint link 330 It includes a second connect link portion 346 coupled to.

The second joint link body 345 is formed longer than the first joint link body 335 . The second joint link body 345 is disposed in the same direction as the first joint link body 335 .

The second joint link body 345 forms a plane of rotation of the joint link with the first joint link body 335 . The rotation plane formed by the joint link 320 is parallel to the rotation plane formed by the rigid link 310 .

The second joint link shaft 341 has the same configuration as the first joint link shaft 331 . However, the second joint link shaft 341 is formed to protrude in the opposite direction to the first joint link shaft 331 .

The second joint link shaft 341 includes a second link shaft body 342 and a second link hook 343 . The second joint link shaft 341 is formed with a shaft flange 348 that limits the insertion depth of the second link shaft body 342 . The shaft flange 348 is in close contact with one side of the coupling flange 214 .

The second connect link unit 346 includes one side link unit body 347 and the other side link unit body 347 protruding from one side and the other side of the second connect body 345 in the longitudinal direction, respectively, and the one side link unit body. (347) and a joint shaft 349 formed on the other side link unit body 347, respectively, and the interspace 343 formed between the one side link unit body 347 and the other side link unit body 347.

The joint shaft 349 formed on the one side link part body 347 is formed to protrude to one side, and the joint shaft 349 formed on the other side link part body 347 is formed to protrude to the other side.

The joint shaft 349 may be formed in at least one of the first joint link 330 or the second joint link 340, and the first joint link 330 and the second joint link 340 coupled in a relative rotatable manner.

The one side link unit body 347 and the other side link unit body 347 can be bent and deformed by the elasticity of the material.

When the second connect link part 346 is inserted into the link insertion space 334 and coupled with the first connect link part 336, the one side link part body 347 and the other side link part body 347 are the It may be bent and deformed into the interspace 344 .

The joint shaft 349 of the second joint link 340 is inserted into the joint shaft hole 339 of the first joint link 330 . In such a structure, the first joint link 330 and the second joint link 340 may be rotated relative to each other.

On the other hand, the joint stopper 350 limits the relative rotation angle of the first joint link 330 and the second joint link 340 .

Since the angle between the first joint link 330 and the second joint link 340 is limited through the joint stopper 350, the first vane 210 can be positioned more accurately.

In this embodiment, the joint stopper 350 is a first joint stopper 352 for limiting the clockwise rotation of the joint link 320, and a second joint for limiting the counterclockwise rotation of the joint link 320 A stopper 354 is included.

The first joint stopper 352 is disposed on the front side of at least one of the first joint link 330 or the second joint link 340 . The second joint stopper 354 is disposed on the rear side of at least one of the first joint link 330 or the second joint link 340 .

In this embodiment, the first joint stopper 352 is formed to protrude forward from the second joint link body 345 .

The second joint stopper 354 is manufactured by forming the rear side of the second joint link body 345 inclined. Unlike this embodiment, the second joint stopper 354 can also be manufactured to protrude.

The first joint stopper 352 and the second joint stopper 354 may be arranged in various positions in various shapes according to the relative rotation angle to be limited.

In this embodiment, the first joint stopper 352 may be supported on the front side outer surface 351 of the first joint link body 335 . The second joint stopper 354 may be supported on the rear side outer surface 353 of the first joint link body 335 .

<Configuration of connection link>

One side of the connection link 360 is rotatably coupled to the rigid link 310 and the other side is rotatably coupled to the second vane 240 .

The connecting link 360 includes a connecting link body 365 and a first connecting link coupling part 361 disposed on the connecting link body 365 and rotatably coupled to the second vane 240 , and a second connecting link coupling part 362 disposed on the connecting link body 365 and rotatably coupled to the rigid link 310 .

The second connecting link coupling part 362 is formed in the shape of a hole, and is coupled through the third rigid link shaft 313 . The third rigid link shaft 313 may be relatively rotated while being coupled to the second connecting link coupling part 362 .

The first connecting link coupling part 361 is manufactured in the form of the aforementioned joint link shaft 341 . The first connecting link coupling part 361 is disposed to protrude to the other side, and is coupled to the second vane 240 . More precisely, the first connecting link coupling portion 361 is coupled to the second coupling flange 244 protruding upward from the second vane 240 .

The first connecting link coupling part 361 may be inserted and coupled to the third vane coupling part 246 , and may be relatively rotated with the second vane 240 in the third vane coupling part 246 .

8 is an operational view of the joint link shown in FIG. 7, and FIG. 9 is an operational view of the discharge vane shown in FIG.

<Explanation of joint link operation>

The operation of the joint link 320 will be described in more detail with reference to FIG. 8 .

When the vane motor 220 rotates the rigid link 310 to the maximum in the clockwise direction, the joint link 320 forms a state as shown in (a) of FIG. 8 .

When rotating the rigid link 310 counterclockwise in the state of Figure 8 (a), the joint link 320 maintains the state as shown in Figure 8 (b).

When the vane motor 220 rotates the rigid link 310 counterclockwise to the maximum, the joint link 320 forms a state as shown in (c) of FIG. 8 .

When the state of Figure 8 (a), the first joint stopper 352 is a state supported on the front side outer surface 351 of the first joint link body 335 . In this state, the second joint link 340 can no longer rotate in the counterclockwise direction.

In the state of Figure 8 (c), the second joint stopper 354 is supported on the rear side outer surface 353 of the first joint link body 335 . When the second joint link 340 is rotated clockwise about the joint axis 349 in the state of (a) of FIG. (c) of (c) is formed.

<Explanation of operation of rigid link, joint link and connecting link>

The operation of the rigid link, the joint link and the connecting link will be described with reference to FIGS. 8 and 9 .

In the state of FIGS. 8A and 9A , the discharge vane 200 is in a non-operational state. When the indoor unit is not operated, the discharge vane 200 maintains the state as shown in FIGS. 8A and 9A , and the vane motor 220 moves the rigid link 310 clockwise to the maximum rotate At this time, the link stopper 314 is supported by one end 233 of the boss stopper 232 .

The first joint stopper 352 is in a state supported on the front side outer surface 351 of the first joint link body 335 . The joint link 320 does not form an angle between them, and maintains a straight-line state.

The rigid drink 310 is rotated about the second rigid drink shaft 312, the joint link 320 is rotated about the first joint link shaft 331.

The first vane 210 is rotated in a state constrained by the rigid link 310 and the joint link 320 , and is located in the outlet 102 . A lower surface of the first vane 210 forms a continuous surface with the cover panel 120 .

In the state (a) of FIG. 9 , the second vane 240 is positioned above the first vane 210 . When viewed in a plan view, the second vane 240 is positioned between the plurality of coupling flanges 214 , and positioned above the first vane body 212 .

And the rigid link 310, the joint link 320 and the connecting link 360 necessary for rotating the first vane 210 and the second vane 240 are located on the upper side of the first vane 210, and the The rigid link 310 , the joint link 320 and the connecting link 360 are not visible from the outside by the first vane 210 .

In the state (a) of FIG. 9 , the second link coupling part 362 is positioned higher than the second rigid link shaft 312 . In the state (a) of FIG. 9 , the rigid link 310 is rotated in the maximum clockwise direction, and the connection link 360 maintains a maximum raised state.

When the indoor unit is not operated, since the second vane 240 is located above the first vane 210, it is in a hidden state when viewed from the outside. The second vane 240 is exposed to the user only when the indoor unit is operated. Therefore, the second vane 240 is positioned on the discharge passage 104 when the indoor unit is not in operation, and the first vane 210 covers most of the discharge port 102 .

In the present embodiment, the first vane 210 covers only most of the outlet 210 , but the first vane 210 may be formed to cover the entire outlet 210 according to design.

In the state of FIG. 9 (b), the discharge vane 200 may form a horizontal wind.

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

When forming the horizontal wind, the first vane 210 and the second vane 240 may be connected and form a continuous surface. In this embodiment, the second vane 240 is located on the rear side of the first vane 210 , and the front end 242a of the second vane 240 is on the rear side of the first bay 210 . It may be close to or in contact with the end 212a.

By bringing the front end 242a and the rear end 212a into proximity or contact, when forming a horizontal wind, it is possible to suppress the leakage of the discharge air between the first vane 210 and the second vane 240. can

In this embodiment, the front end 242a and the rear end 212a are brought into close contact with each other, but are not brought into contact. Instead, in order to prevent the discharge air from leaking between the first vane 210 and the second vane 240 , the front end 242a of the second vane 240 is placed on the upper side of the first vane 210 . When positioned and viewed in a plan view, the front side of the second vane 240 overlaps the first vane 210 . In this case, the air guided along the upper surface of the second vane 240 may be guided to the upper surface of the first vane 210 , and air resistance and leakage may be minimized.

Also, when forming a horizontal wind, at least a portion of the first vane 210 and the second vane 240 overlap, and the front end 242a of the second vane is the rear end 212a of the first vane. Since it can be supported on the , it is possible to suppress the vibration generated when the discharge air collides with the first vane 210 and the second vane 240 .

And when forming a horizontal wind, since the first vane 210 and the second vane 240 are connected and operate as one vane, the airflow intensity of the horizontal wind can be increased. That is, since the discharge air is guided in the horizontal direction along the upper surface of the second vane 240 and the upper surface of the first vane 210, the directionality of the discharge air is further strengthened compared to forming a horizontal wind with one vane. can do it

When forming a horizontal wind, the second vane 240 is more inclined in the vertical direction than the first vane 210 .

In the state of Fig. 9 (a), the vane motor 220 rotates the rigid link 310 counterclockwise to form the state of Fig. 9 (b). The joint link 320 is rotated about the first joint link shaft 331 .

When the first vane 210 is disposed to discharge the horizontal wind, the second joint link shaft 341 is positioned lower than the first rigid link shaft 311 .

In the case of the horizontal wind, when viewed from the side, it is advantageous that the first vane 210 is positioned lower than the outlet 102 , and the second vane 240 is disposed to overlap the outlet 102 . .

When the first vane 210 is rotated at the same height as in FIG. 9A , the amount of air guided to the first vane 210 is reduced due to interference with the discharge air.

As shown in Fig. 9 (b) of this embodiment, after the first vane 210 descends to the lower side of the discharge port 102, it must be aligned in the horizontal direction to guide most of the discharge air in the horizontal direction.

In this embodiment, the first vane 210 can be moved to the lower side of the outlet 102 through the rotation of the rigid drink 310 and the joint link 320, and the direction of the first vane 210 is also formed horizontally. can Since the vane of the conventional indoor unit has a structure that rotates in place, the same effect as the present embodiment cannot be realized.

On the other hand, when the vane motor 220 rotates the rigid drink 310 counterclockwise in the state of FIG. 9 (a), the connection link 360 coupled to the rigid drink 310 is also 310) is rotated.

When the rigid link 310 is rotated counterclockwise, the connecting link 360 is also rotated counterclockwise, and the second vane 240 coupled to the connecting link 360 is a second vane shaft ( 241) is rotated clockwise.

That is, to form a horizontal wind, when the state of FIG. 9 (a) is changed from the state of FIG. 9 (b) to the state of FIG. 9 (b), the first vane 210 is rotated counterclockwise and descends downward, 2 The vanes 240 are rotated clockwise.

In order to form the horizontal wind, when the state of FIG. 9 (a) is changed to the state of FIG. 9 (b), the rotation directions of the first vane 210 and the second vane 240 are reversed. .

When the front end 242a of the second vane 240 and the rear end 212a of the first vane 210 come into proximity or contact, the rigid link 310 is stopped.

In this embodiment, in order to prevent the discharge air from leaking between the first vane 210 and the second vane 240, the front end 242a of the second vane 240 is removed from the first vane 210. placed on top of

When viewed in a plan view, the front side of the second vane 240 overlaps the first vane 210 . Since the front side of the second vane 240 is overlapped with the rear side of the first vane 210 , the discharge air flowing along the discharge passage 104 is transferred to the front end 242a of the second vane 240 . ) and it can suppress the flow between the rear end (212a) of the first vane (210).

When the state of Figure 9 (b) to form a horizontal wind, the connecting link 360, the rigid link 310 and the joint link 320 are all arranged in the vertical direction.

The first connection link coupling part 361 of the connection link 360 is located below the second connection link coupling part 362, and the connection link 360 is disposed in the vertical direction.

The first rigid link shaft 311 of the rigid link 310 is positioned below the second rigid link shaft 312 , and the rigid link 310 is disposed in the vertical direction. The second joint link shaft 341 of the joint link 320 is located below the first joint link shaft 331, the joint link 320 is arranged in a straight line, and is arranged in the vertical direction.

When forming a horizontal wind through the rigid drink link 310 and the joint link 320, the first vane 210 is positioned below the discharge port 102, and through this, a larger amount of discharged air is blown into the horizontal wind. can be provided as

When the first vane 210 is horizontally arranged to form the air discharged from the outlet 102 in a horizontal wind, the first vane 210 is positioned below the outlet 102 .

When the first vane 210 is horizontally arranged to form the air discharged from the outlet 102 in a horizontal wind, the first vane 210 is the lower surface of the case 100 (a cover in this embodiment). It is spaced apart from the bottom surface of the panel 120 by a predetermined distance, and is located further below the bottom surface of the cover panel 120 .

Since the first vane 210 is supported by the rigid link 310 and the joint link 320 in the state of FIG. 9 (b) to form a horizontal wind, the air discharged from the outlet 102 is Vibration generated by colliding with the first vane 210 may be suppressed.

When the rigid link 310 is further rotated counterclockwise through the vane motor 220 in the state of FIG.

As the rigid link 310 is further rotated counterclockwise in the state of FIG. 9 (b), the first vane 210 is further rotated counterclockwise, and the second vane 240 is rotated clockwise. is further rotated by

The discharge vane 200 of FIG. 9(c) may discharge discharge air in an inclined direction between vertical and horizontal. In this embodiment, this is defined as an inclined wind.

In the state of FIG. 9(c), both the first vane 210 and the second vane 240 are disposed to be inclined with respect to the vertical direction. The first vane 210 and the second vane 240 may be disposed in parallel. In the present embodiment, the first vane 210 and the second vane 240 are arranged to be inclined with respect to the vertical direction, and the inclination angles are different.

The first vane 210 is disposed more horizontally as compared to the second vane 240 . The second vane 240 is disposed more vertically than the first vane 210 .

In the state of Figure 9 (c), the second rigid link shaft 312, the first rigid link shaft 311 and the second joint link shaft 341 may be arranged in a line. When the second rigid drink shaft 312, the first rigid drink shaft 311 and the second joint link shaft 341 are arranged in a line, the first joint link shaft 331, the joint shaft 349 and The second joint link shaft 341 may also be arranged in a line.

After the second rigid link shaft 312, the first rigid link shaft 311 and the second joint link shaft 341 are arranged in a line, the rigid drink 310 is operated through the vane motor 220. When further rotated counterclockwise, the first joint link 330 and the second joint link 340 through the joint link shaft 341 start to rotate relative.

In the state of Figure 9 (c), the rigid link 310 and the joint link 320 form a predetermined angle between the (B). In the present embodiment, the angle B may be formed to be greater than 0 degrees and less than or equal to 90 degrees. The angle (B) may be formed in various ways depending on the length of the rigid link and the joint link or the position of the axis of rotation.

When the rigid link 310 is further rotated counterclockwise in the state of FIG. 9(c), the state as shown in FIG. 9(d) can be formed.

When the rigid link 310 is further rotated counterclockwise in the state of FIG. 9C , the first vane 210 and the second vane 240 are rotated clockwise.

When the state as shown in (d) of Figure 9, the discharge vane 200 may form a vertical wind. A state in which the air discharged through the discharge port 102 is guided by the first vane 210 and flows downward in the vertical direction is defined as a vertical wind.

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

In this embodiment, the vertical wind is formed when the rigid link 310 is rotated to the maximum in the counterclockwise direction. In this state, the first vane 210 is disposed substantially perpendicular to the ceiling or the ground.

When changing from the state (c) of FIG. 9 to the state (d) of FIG. 9 , the second vane 240 is rotated clockwise about the second vane shaft 241 .

When the state of FIG. 9 (c) is changed to the state of FIG. 9 (d), the first vane 210 moves in a clockwise direction unlike when the state of FIGS. is rotated to

Since the first vane 210 must be changed in a vertical direction in the state of FIG. 9C , the first vane 210 must be rotated clockwise.

For this, the joint link 320 is disposed.

In the state of Figure 9 (d), the second joint stopper 354 is supported on the rear side outer surface 353 of the first joint link body 335, and can no longer be rotated. In addition, the rigid link 310 is supported by mutual interference with the other end 234 of the boss stopper 232 , and the rigid link 310 cannot be rotated any more.

In a state in which the first joint link shaft 331, the joint shaft 349 and the second joint link shaft 341 are arranged in a line, the joint shaft 349 is further rotated counterclockwise to form a vertical wind. The state of FIG. 9 (d) is formed.

As the joint shaft 349 rotates counterclockwise, the first vane 210 is rotated clockwise around the second joint link shaft 341 .

In the state of FIG. 9 (d) to form a vertical wind, the second rigid drink shaft 312, the first rigid drink shaft 311 and the second joint link shaft 341 have a predetermined angle C between them. to form In this embodiment, the angle C may be formed to be greater than or equal to 90 degrees and less than 180 degrees. The in-between angle C may form an obtuse angle.

The angle D may be formed in various ways depending on the position of the second rigid drink shaft 312 , the first rigid drink shaft 311 , or the second joint link shaft 341 .

In the state of FIG. 9 (d) to form a vertical wind, the first joint link 330 and the second joint link 340 form a predetermined angle D between them. In this embodiment, the angle D may be formed to be greater than or equal to 90 degrees and less than 180 degrees. The in-between angle D may be formed as an obtuse angle.

The angle (D) may be formed in various ways according to the length of the first joint link and the second joint link or the position of the axis of rotation.

In the state of FIG. 9 (d) to form a vertical wind, the first rigid drink shaft 311 and the second joint link shaft 341 may be vertically disposed.

In the state of FIG. 9 (d) to form a vertical wind, the first rigid drink shaft 311, the second joint link shaft 341 and the first joint link shaft 331 may be arranged in a line or vertically.

In the state of FIG. 9 (d) to form a vertical wind, the rigid link 310 is in a state supported by the boss stopper 232, and the joint link 320 is in a state supported by the joint stopper 350, so the discharge It is possible to suppress the vibration generated by the air hitting the first vane 210 .

In the state of FIG. 9 (d) to form a vertical wind, the first connection link coupling part 361, the second connection link coupling part 362 and the second rigid link shaft 312 are arranged in a line in order. can

Based on the rigid link 310, in order to form a vertical wind, the second connection link coupling part 362 is aligned with the second rigid link shaft 312 and the first connection link coupling part 361. The rigid link 310 may be rotated counterclockwise until it is disposed.

On the other hand, when the discharge vane 200 forms a vertical wind, the rigid drink link 310 is in a state supported by the boss stopper 232, and the joint link 320 is in a state supported by the joint stopper 350. The external force applied to the first vane 210 may be distributed to the rigid drink 310 and the joint link 320 .

In the present invention, since the first joint link 330 and the second joint link 340 are rotated about the joint axis 349 to form the angle D of 180 degrees or less, the first vane body 212 ), there is an advantage that the rear end (212a) can be closer to the discharge port side.

The rear end 212a of the first vane body 212 is raised to the height of the motor case 105, and through this, the air discharged from the outlet 102 can be more effectively guided vertically downward. have.

When forming a vertical wind through the rigid drink link 310 and the joint link 320, a portion of the first vane 210 is in close contact with or inserted into the outlet 102 side, and through this, a larger amount of air is discharged. Vertical wind can be provided. When a portion of the first vane 210 is not in close contact with or inserted into the discharge port 102 , some air may be discharged in a direction other than the vertical wind.

In addition, the first joint link shaft 311 of the rigid link 310 can be raised to a height similar to the joint shaft 349, and through this, the rear end 212a of the first vane body 212 can be seen. It can be brought closer to the discharge port 102 side.

In addition, since the first joint link 330 and the second joint link 340 are rotated about the joint axis 349 , it is possible to prevent interference between the joint link 320 and the rigid link 310 . .

10 is a block diagram for controlling a discharge vane of the air conditioner according to the first embodiment of the present invention, and FIG. 11 is a flowchart illustrating a control method of the air conditioner according to the first embodiment of the present invention.

The control method according to the present embodiment is a control method for suppressing or minimizing dew formation of the discharge vane.

The control method of the indoor unit of the air conditioner according to the present embodiment includes the steps of performing a cooling operation (S10), and after the step S10, determining whether the discharge angle of the discharge vane 200 is a horizontal wind (S20); When the step S20 is satisfied, the step of determining whether the step S10 exceeds the cooling operation time (S30), and when the step S30 is satisfied, the step of determining whether the relative humidity of the indoor air is equal to or greater than a reference value (S40); If the S40 is not satisfied, maintaining the current angle of the discharge vane 200 (S45), and if the S40 is satisfied, changing the angle of the discharge vane 200 (S50) and , determining whether the change time has elapsed after the step S50 (S60), and if the step S60 is satisfied, returning to the step S30.

Here, if the S20 is not satisfied, the current angle of the discharge vane 200 is maintained. (S25)

And if the S30 is not satisfied, the current angle of the discharge vane 200 is maintained (S35).

And if the S60 is not satisfied, the current angle of the discharge vane 200 is maintained. (S65)

The step S10 is a step in which the control unit 300 performs a cooling operation of the air conditioner. The cooling operation may be performed automatically according to the set indoor temperature or may be performed through a user's manipulation signal.

During the cooling operation, the compressor is driven, and the refrigerant compressed in the compressor is condensed in the outdoor heat exchanger of the outdoor unit and then supplied to the indoor unit. The condensed refrigerant supplied to the indoor unit is expanded in the indoor heat exchanger 130 and cools the indoor air. The cooled indoor air is discharged into the room by the blowing fan 140 of the indoor unit.

By the operation of the blower fan 140 , indoor air is sucked into the case 100 through the inlet 101 , and the cooled air is discharged into the room through the outlet 102 .

The controller 300 may control the vane motor 220 of the discharge vane 200 to control the positions and angles of the first vane 210 and the second vane 240 .

In step S20, it is determined whether the discharge vane 200 is disposed at a position capable of providing horizontal wind. The horizontal wind refers to the state of FIG. 9 (b).

The horizontal wind is defined as a state in which the air discharged from the outlet 102 is guided by the first vane 210 and flows in a horizontal direction with the ceiling or the ground. The horizontal wind can maximize the flow distance of the discharge air, and can minimize the direct provision of cool air to the user.

The horizontal wind cools the indoor air in the form of an indirect wind rather than directly discharging air to the user.

In step S20, it is determined whether the discharge vane 200 is disposed in a horizontal wind state.

When the step S20 is satisfied, the process proceeds to the step S30. If the step S20 is not satisfied, the current state of the discharge vane 200 is maintained. (S25)

In S25, the discharge vane 200 may be at least one of an inclined wind and a vertical wind.

In step S30, it is determined whether the cooling operation exceeds the first cooling operation time.

In this embodiment, the first cooling operation time is set to 60 minutes, and the first interior operation time may be set differently from the present embodiment according to the installation environment or the installed latitude.

When the step S30 is satisfied, the process proceeds to the step S40. If the step S30 is not satisfied, the current state of the discharge vane 200 is maintained. (S35)

When the cooling operation exceeds the first cooling operation time in a state in which the discharge vane 200 is formed in a horizontal wind, dew may form on the first discharge vane 210 and the second discharge vane 240 .

In this embodiment, when the discharge vane 200 forms a horizontal wind, the first discharge vane 210 and the second discharge vane 240 contact or overlap to form one horizontal wind guide surface 201 . At this time, cold air flows on the upper side of the horizontal wind guide surface 201 , and warmer indoor air is disposed on the lower side of the horizontal wind guide surface 201 .

As such, when air of different temperatures is formed above and below the first discharge vane 210 and the second discharge vane 240 that operate like a single vane for more than the first cooling operation time, dew on the vanes due to the temperature difference Condensation may occur.

In the case of a conventional vane, one side and the other side of the vane are in contact with air of the same temperature, but in the present invention, when forming a horizontal wind, the temperature difference between the upper and lower air of the first discharge vane 210 and the second discharge vane 240 is clear

When the horizontal wind is formed, the cooled air flows only through the horizontal wind guide surface 201 formed on the upper side of the first discharge vane 210 and the second discharge vane 240, and the cooled discharge air flows to the lower side. because this is limited.

In step S40, the relative humidity of the indoor air is sensed. The relative humidity may be detected through a humidity sensor 302 disposed indoors. A temperature sensor 303 for sensing indoor temperature and a humidity sensor 302 for sensing indoor humidity are disposed in the indoor unit.

Although not shown, a refrigerant temperature sensor for sensing the temperature of the refrigerant or a refrigerant pressure sensor for sensing the pressure of the refrigerant may be disposed inside the indoor unit.

In this embodiment, the humidity sensor 302 may be disposed in the case 100 . Unlike the present embodiment, when a wired remote control is connected to the indoor unit, the humidity sensor 302 may be installed in the wired remote control.

In step S40, it is determined whether the detected relative humidity of the indoor air is equal to or greater than a reference value. The relative humidity can be obtained from the table of the control unit 301 stored in advance through the indoor temperature sensor 303 and the indoor humidity sensor 302 .

In this embodiment, the reference value of the relative humidity is 70%.

If the step S40 is satisfied, the process proceeds to step S50. If the step S40 is not satisfied, the process proceeds to the step S45, and the current state of the discharge vane 200 is maintained in the step S45.

In the step S50, the first discharge vane 210 and the second discharge vane 240 in the inclined wind in the horizontal wind state in order to prevent or remove dew formation of the first discharge vane 210 or the second discharge vane 240. It is a step to change the layout of

In step S50, the control unit operates the vane motor 220. In a state in which the first vane 210 and the second vane 240 are in contact or overlap to form the horizontal wind guide surface 201, the step S50 is to remove the first vane 210 and the second vane 240. separate

When the discharge vane 200 is changed from a horizontal wind state to an inclined wind, the cooled discharge air is guided to the upper and lower surfaces of the first vane 210 , and the upper surface of the second vane 240 . And the cooled discharge air is guided to the lower side.

The inclined wind is the state shown in FIG. 9(c).

Unlike this embodiment, in step S50, the discharge vane may be changed from the horizontal wind state to the vertical wind state (FIG. 9(d)). When the vertical wind is changed, a larger amount of cooled discharge air may be provided to the lower surface of the first vane 210 and the lower surface of the second vane 240, thereby reducing the change time of step S50. can do it

The step S60 determines the change time of the step S50. It is determined whether the change time of step S50 exceeds the reference change time. In this embodiment, the reference change time is 1 minute. Unlike this embodiment, the reference change time may be set differently according to relative humidity, installation location, or latitude.

If step S60 is satisfied, the process returns to step S30.

If the step S60 is not satisfied, the current state of the discharge vane 200 is maintained. (S65)

The control method of the air conditioner according to the present embodiment can prevent or remove dew formation on the first vane or the second vane when the discharge vane is operated in a horizontal wind.

When the control method of the air conditioner according to the present embodiment satisfies S30 and S40, it is possible to suppress dew formation of the vanes by changing the discharge vanes to inclined wind for 1 minute every 60 minutes.

Meanwhile, in the present embodiment, the step S40 is controlled to be performed after the step S30, but unlike the present embodiment, the step S40 may be performed before the step S20 or the step S30.

12 is a flowchart illustrating a method for controlling an air conditioner according to a second embodiment of the present invention.

Compared with the first embodiment, the control method according to this embodiment is characterized in that the step S40 of determining the relative humidity of the indoor air is first performed, and then the step S30 of determining the cooling operation time is performed.

The control method of the indoor unit of the air conditioner according to the present embodiment includes the steps of performing a cooling operation (S10), and after the step S10, determining whether the discharge angle of the discharge vane 200 is a horizontal wind (S20); If step S20 is satisfied, determining whether the relative humidity of the indoor air is equal to or greater than a reference value (S40), and if not satisfying step S40, maintaining the current angle of the discharge vane 200 (S45) and , when the step S40 is satisfied, determining whether the step S10 exceeds the cooling operation time (S30), and when the step S30 is satisfied, changing the angle of the discharge vane 200 (S50) and , determining whether the change time has elapsed after the step S50 (S60), and if the step S60 is satisfied, returning to the step S40.

The control method according to the present embodiment maintains the current angle of the discharge vane 200 without performing the remaining control when the relative humidity of the room does not meet the reference value when the horizontal wind is operating.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments and may be manufactured in a variety of different forms, and those of ordinary skill in the art to which the present invention pertains. It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100: case 101: intake port
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
230: boss 232: boss stopper
240: second vane 241: second vane shaft
310: Rigid Drink 311: First Rigid Drink Shaft
312: second rigid drink shaft 314: link stopper
315: rigid drink body 320: joint link
330: first joint link 331: first joint link axis
340: second joint link 341: second joint link shaft
349: joint axis 350: joint stopper
352: first joint stopper 354: second joint stopper
360: connecting link 361: first connecting link coupling unit
362: second connection link coupling part 365: connection link body

Claims (9)

a case in which the inlet and outlet are formed on the bottom; and a discharge vane disposed in the case and guiding the flow direction of the discharge air discharged from the discharge port;
The discharge vane may include: a first vane positioned on the front side with respect to the discharge port and guiding the flow direction of the air; a second vane positioned on the rear side with respect to the outlet and rotatably coupled to the case through a second vane shaft coupled to the case; In the control method of an air conditioner comprising a; a vane motor installed in the case and providing a driving force to rotate the first vane and the second vane,
cooling operation (S10);
After the step S10,
determining whether the first vane and the second vane descend to the lower side of the outlet, and the first vane and the second vane are in contact or overlap to form a horizontal wind guide surface (S20);
If it is determined that the horizontal wind, determining whether the step S10 exceeds the cooling operation time (S30);
if the S30 is satisfied, determining whether the relative humidity of the indoor air is equal to or greater than a reference value (S40);
when the step S40 is satisfied, operating the vane motor to change the angle of the discharge vane (S50);
determining whether a change time has elapsed after the step S50 (S60);
When the S60 is satisfied, returning to the step S30;
When forming the horizontal wind, the first vane and the second vane contact or overlap, and the first vane and the second vane are connected to form one horizontal wind guide surface,
The step (S50) of changing the angle of the discharge vane is a control method of an air conditioner in which the first and second vanes that are connected to form the horizontal wind are separated. The method according to claim 1,
When at least one of S20, S30, S40, and S60 is not satisfied, the control method of the air conditioner maintains the current angle of the discharge vane. delete delete The method according to claim 1,
In order to provide the horizontal wind, the front end of the second vane and the rear end of the first vane contact or overlap in the vertical direction,
In step S50, the front end of the second vane and the rear end of the first vane are spaced apart by operating the vane motor. The method according to claim 1,
When the S20 is not satisfied, the control method of the air conditioner maintains the current angle of the discharge vane and returns to the step S10. The method according to claim 1,
When the S30 is not satisfied, the control method of the air conditioner maintains the current angle of the discharge vane and returns to the step S30. The method according to claim 1,
If the S40 is not satisfied, the control method of the air conditioner maintains the current angle of the discharge vane and returns to the step S40. The method according to claim 1,
If the S60 is not satisfied, the control method of the air conditioner maintains the current angle of the discharge vane and returns to the step S60.

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