KR20190024480A - Indoor unit of air conditioner - Google Patents

Abstract

The present invention provides an indoor unit of an air conditioner installed in a ceiling. The indoor unit includes a case having a suction port and a discharge port formed on a bottom surface thereof, and a discharge vane disposed in the case to guide a flow direction of air discharged from the discharge port, wherein the discharge vane includes a vane for guiding the flow direction of the air; a rigid link including a first rigid link shaft coupled to the vane to be rotatable relative to the vane and a second rigid link shaft coupled to be rotatable relative to the case; a first joint link including a first joint link shaft coupled to a first joint link shaft to be rotatable relative to the case; a second joint link including a second joint link shaft to be rotatable relative to the vane; a joint shaft formed on at least one of the first joint link or the second joint link and coupling the first joint link and the second joint link to be rotatable relative to each other; and a vane motor installed in the case to provide a driving force to either the rigid link or the first joint link for adjusting an angle of the vane. When the horizontal wind is formed through the rigid link and the joint link, the vane is positioned below the discharge port so that a larger amount of discharge air can be provided as the horizontal wind. When forming vertical wind through the rigid link and the joint link, a part of the vane is brought into close contact with the discharge port so that a larger amount of discharge air can be provided as the vertical wind.

Description

[0001] The present invention relates to an indoor unit of an air conditioner,

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

Generally, an air conditioner is composed of a compressor, a condenser, an evaporator, and an inflator, and supplies air or warm air to a building or a room using an air conditioning cycle.

The air conditioner is structurally divided into a separable type in which the compressor is disposed outdoors and an integral type in which the compressor is integrally manufactured.

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

In the integrated type, the indoor heat exchanger, the outdoor heat exchanger and the compressor are installed in one case. The integrated type air conditioner includes a window type air conditioner for directly mounting the apparatus on a window, and a duct type air conditioner for connecting the suction duct and the discharge duct to the outside of the room.

The separate type air conditioner is generally classified according to the installation type of the indoor unit.

A stand-type air conditioner in which an indoor unit is vertically installed in an indoor space is referred to as a stand-type air conditioner. A wall-mounted type air conditioner in which an indoor unit is installed on a wall of the room is called a ceiling-type indoor unit.

There is also a system air conditioner which is capable of providing air-conditioned air in a plurality of spaces as one type of a separate type air conditioner.

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

A plurality of indoor units provided in the system air conditioner may be equipped with a stand type, a wall type or a ceiling type.

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

However, in the conventional ceiling-type indoor unit, since the discharge direction of the air is controlled by only one vane, there is a limitation in controlling the direction of the discharged air.

Korea Patent No. 10-0679838 B1

It is an object of the present invention to provide an indoor unit of an air conditioner capable of realizing vertical wind and horizontal wind through rigid links and joint links.

It is an object of the present invention to provide an indoor unit of an air conditioner capable of minimizing interference with discharged air through a rigid link and a joint link and realizing vertical wind and horizontal wind.

An object of the present invention is to provide an indoor unit of an air conditioner capable of relatively rotating a first joint link and a second joint link about a joint axis disposed in the middle of a joint link and minimizing the loss of the discharged air .

The present invention provides an indoor unit of an air conditioner that allows a vane to be positioned below a discharge port when a horizontal wind is formed through rigid links and joint links, thereby providing a larger amount of discharge air through a horizontal wind .

The present invention provides an indoor unit of an air conditioner capable of providing a part of a vane to a discharge port side through a rigid link and a joint link to provide a larger amount of discharged air as a vertical wind .

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

The present invention minimizes the interference with the discharged air through the rigid link and the joint link, and can realize the vertical wind and the horizontal wind.

In the present invention, when the horizontal wind is formed, the first joint link and the second joint link are arranged in a straight line and arranged on the lower side of the discharge port, and when the vertical wind is formed, So that a part of the vane can be positioned inside the discharge port.

The present invention relates to an indoor unit of an air conditioner installed on a ceiling, the indoor unit having a suction port and a discharge port formed on a bottom surface thereof; And a discharge vane disposed in the case and configured to guide a flow direction of air discharged from the discharge port, wherein the discharge vane includes: a vane for guiding a flow direction of air; A rigid link shaft including a first rigid link shaft coupled to the vane so as to be rotatable relative to the vane and a second rigid link shaft coupled to be rotatable relative to the case; A first joint link including a first joint link shaft coupled to the case so as to be rotatable relative to the case; A second articulated link including a second articulated link shaft rotatably coupled to the vane; A joint shaft formed on at least one of the first joint link and the second joint link and coupling the first joint link and the second joint link relative to each other; And a vane motor installed in the case and providing a driving force to either the rigid link or the first joint link for adjusting the angle of the vane.

When the vane is arranged horizontally and the air discharged from the discharge port is formed into a horizontal wind, the vane may be positioned below the discharge port.

When the vane is horizontally disposed and the air discharged from the discharge port is formed as a horizontal wind, the vane may be spaced apart from the bottom surface of the case by a predetermined distance, and may be positioned lower than the bottom surface of the case.

When the vanes are arranged horizontally and the air discharged from the discharge port is formed into a horizontal wind, the first joint link and the second joint link may be arranged in a line.

When the vane is arranged perpendicularly to the ceiling or the ground and the air discharged from the discharge port is formed into vertical wind, a part of the vane may be positioned inside the discharge port.

Wherein when the vane is arranged perpendicularly to the ceiling or the ground and air discharged from the discharge port is formed into a vertical air flow, the angle between the first rigid link shaft, the second rigid link shaft, and the second joint link shaft ) May be formed at an obtuse angle.

When the vane is arranged perpendicularly to the ceiling or the ground and the air discharged from the discharge port is formed into a vertical air flow, the angle D formed by the first joint link shaft, the joint shaft, and the second joint link shaft is expressed by an obtuse angle As shown in FIG.

The first joint link shaft, the second rigid link shaft, and the second joint link shaft may be arranged in a row when the vane is arranged orthogonally to the ceiling or the ground and the air discharged from the discharge port is formed into a vertical wind. ,

Wherein the first joint link shaft, the second rigid link shaft, and the second joint link shaft are arranged in a row when the vane is arranged orthogonally to the ceiling or the ground and the air discharged from the discharge port is formed into vertical wind, Or may be arranged orthogonal to the ceiling.

And a boss stopper disposed in the case for restricting a rotation angle of the rigid link, wherein the boss stopper has one end for limiting a rotation angle of the rigid link when the rigid link is rotated clockwise, And the other end limiting the rotation angle of the rigid link when the rigid link is rotated in the counterclockwise direction.

And a boss which is disposed in the case and to which the second rigid link shaft is rotatably engaged, wherein the boss is protruded toward the vane, and the boss stopper is formed on the boss.

The second rigid link shaft is disposed through the boss, and the vane motor is connected to the second rigid link shaft disposed through the boss to provide a driving force.

And a joint stopper disposed in at least one of the first joint link and the second joint link and restricting the relative rotation angle when the relative rotation is performed around the joint axis.

Wherein the joint stopper is disposed on any one of the first joint link and the second joint link, and when the second joint link is rotated counterclockwise with respect to the joint axis, A first joint stopper for restricting rotation in a direction of the first joint; Wherein the first joint link is disposed on at least one of the first joint link and the second joint link, and when the second joint link is rotated clockwise with respect to the joint axis, And a second articulation stopper.

When the vane is horizontally disposed and the air discharged from the discharge port is formed into a horizontal wind, the first articulated stopper disposed on any one of the first articulated link and the second articulated link is positioned on the first articulated link or the second articulated link, And is supported on the other of the two articulated links, thereby limiting the second articulated link from being further rotated counterclockwise with respect to the first articulated link.

The second joint stopper disposed on one of the first joint link and the second joint link includes a second joint stopper disposed on one of the first joint link and the second joint link when the vane is arranged orthogonally to the ceiling or the ground, Is supported on the other of the articulated link or the second articulated link and may limit further rotation of the second articulated link in the clockwise direction relative to the first articulated link.

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

First, the present invention is advantageous in that a vertical wind and a horizontal wind can be realized through a joint link and a rigid link that rotate a vane.

Second, the present invention is advantageous in that when the horizontal wind is formed through the rigid link and the joint link, the vane is positioned on the lower side of the discharge port, and a larger amount of discharged air can be provided through the horizontal wind.

Third, the present invention is advantageous in that when a vertical airflow is formed through the rigid link and the joint link, a part of the vane is brought into close contact with the discharge port side, and a larger amount of discharged air can be supplied through the vertical airflow.

Fourth, in the present invention, when the horizontal wind is formed, the first joint link and the second joint link are arranged in a straight line and disposed on the lower side of the discharge port, and when forming the vertical wind, An obtuse angle can be formed and a part of the vane can be positioned inside the discharge port.

Fifth, since the first joint link and the second joint link are rotated around the joint axis to form an angle D of 180 degrees or less, the advantage that the rear side end of the vane body can be closer to the discharge port side .

Sixth, according to the present invention, since the first joint link and the second joint link are rotated around the joint axis, the first joint link axis of the rigid link can be raised to a height similar to the joint axis, Can be brought closer to the discharge port side.

Seventh, since the first joint link and the second joint link are rotated around the joint axis, the present invention has an advantage that interference between the joint link and the rigid link can be prevented.

Eighth, in the present invention, when the discharge vane forms a vertical wind, the rigid link is supported by the boss stopper, and the joint link is supported by the joint stopper. Therefore, There is an advantage to be able to do.

Ninth, in the present invention, when the discharge vane forms a vertical wind, since the rigid link is supported on the boss stopper and the joint link is supported on the joint stopper, the external force applied to the vane is dispersed to the rigid link and the joint link There are advantages to be able to.

1 is a perspective view illustrating an indoor unit of an air conditioner according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of FIG. 1. FIG.
3 is a first perspective view illustrating a discharge vane according to an embodiment of the present invention.
4 is a second perspective view of another angle of the discharge vane according to an embodiment of the present invention.
5 is a plan view of Fig.
FIG. 6 is a perspective view of the joint link shown in FIG. 3; FIG.
7 is an exploded perspective view of Fig.
Fig. 8 is an operation example of the joint link shown in Fig. 7. Fig.
Fig. 9 is a view illustrating operation of the discharge vane shown in Fig. 3. Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 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 an exploded perspective view of FIG. 1. Referring to FIG.

<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 an indoor air blowing fan 140 for flowing air to the air inlet 101 and the air outlet 102.

<Configuration of Case>

In this embodiment, the case 100 includes a case housing 110 fixed to a ceiling of a room and opened at a lower side thereof, and a case cover 110 covering the opened face of the case housing 110, (101) and a discharge port (102).

The cover panel 120 may be formed integrally with the case housing 110 and the upper side may be opened. The case 100 may be variously formed in accordance with the production mode, and the configuration of the case 100 does not limit the idea 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 idea of the present invention. In this embodiment, one suction port 101 is formed, and a plurality of the discharge ports 102 are arranged.

In this embodiment, the suction port 101 is formed in a rectangular shape when viewed from the bottom, and the discharge port 102 is spaced apart from the edges of the suction port 101 by a predetermined distance.

The cover panel 120 further includes a suction grill 122 covering the suction port 101. The suction grill 122 is detachably installed on 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 for opening and closing 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 divides the interior of the case 100. The indoor heat exchanger 130 is disposed vertically in this embodiment.

The indoor heat exchanger 130 is arranged to vertically enter the air discharged from the indoor air blowing fan 140.

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 into the drain pan 132 and then be stored. The drain pan 132 is provided with a drain pump (not shown) for discharging the collected condensed water to the outside.

The drain pan 132 may be formed with a sloping surface having a directionality for collecting and storing the condensed water flowing down from the indoor heat exchanger 130 to one side.

<Configuration of Indoor Fan>

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

The indoor ventilation 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 having passed through the suction grill 122 to the fan 144.

The fan motor 146 rotates the fan 144.

<Structure of the Euro>

A space on the side of the indoor ventilation fan 140 with respect to the indoor heat exchanger 130 is defined as a suction flow path 103 and a space defined between the indoor heat exchanger 130 and the case housing 110 ) Is defined as the discharge flow path 104.

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

The 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 suction port 101 and the discharge port 102 are formed on the same side of the cover panel 120.

The suction port (101) and the discharge port (102) are arranged to face in 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. However, the discharge port 102 connected to the discharge path 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.

FIG. 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 another discharge vane according to an embodiment of the present invention, FIG. 5 is a cross- 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 opening 102.

The discharge vane 200 includes a vane 210 for guiding the direction of air flow, a vane motor 220 installed in the case 100 for providing a driving force for adjusting the angle of the vane 210, A rigid link 310 and a joint link 310 that rotatably connect the vane 210 and the case 100 and are rotated according to a driving force of the vane motor 220 to rotate the vane 210, 320).

The rigid link 310 and the joint link 320 may be installed in the case 100. In this embodiment, the rigid link 310 and the joint link 320 are installed in the motor case 105 disposed on the discharge flow path 104. In the present 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 this embodiment, the motor case 105 may be installed in the cover panel 120 or the case housing 110 forming the discharge passage 104. The motor case 105 may be protruded toward the discharge passage 104 of the cover panel 120 or the case housing 110. [

The motor case 105 is arranged to intersect or orthogonally intersect with the longitudinal direction of the vane 210. The motor case 105 may be disposed at one end and the other end with respect to the longitudinal direction of the vane 210. The motor case 105 is formed in a plate shape.

The vane 210 may be separated from the motor case 105 by a predetermined distance with respect to the longitudinal direction of the vane 210 and the vane 210 may be accommodated in the discharge port 102.

A vane motor mounting portion 106 for mounting the vane motor 220 is formed on the outer side of the motor case 105 (on the vane motor side). The vane motor 220 is fastened to the vane motor mounting portion 106 and fixed.

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

The vane motor 220 may be disposed at one or both ends of the vane 210. In the present embodiment, the vane motor 220 is installed only at one side or the other side of the vane 210.

The vane motor 220 is disposed on the opposite side of the vane 210 with respect to the motor case 105. Therefore, the driving force of the vane motor 220 is provided to either the rigid link 310 or the joint link 320 through the motor case 105.

On the inner side (vane side) of the motor case 105, a boss for providing a link is formed. The boss 230 protrudes inward (vane side).

Either the rigid link 310 or the joint link 320 may be installed through the bosses 230. The installed link is rotated about the boss 230.

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

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

The rotation of the vane motor 220 is provided to the rigid link 310 provided through the boss 230 and the rigid link 310 is rotated clockwise Or counterclockwise.

In this embodiment, the vane motor 220 uses a stepping motor.

The boss 230 not only provides the engagement structure of the rigid link 310 but also provides the function of a stopper that limits the turning radius of the rigid link 310.

The boss 230 is formed with an empty hollow 236 therein. And the rigid link 310 penetrates the hollow case 236 of the boss 230 so as to penetrate the motor case 105.

The boss 230 is formed in a cylindrical shape and projects toward the vane 210 side.

The boss 230 has a boss stopper 232 protruding further toward the vane 210. The boss stopper 232 forms an interlock when the rigid link 310 rotates, and restricts rotation of the rigid link 310.

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

In the present embodiment, the boss stopper 232 restricts the rotation angle of the rigid link 310 so as 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 interfere with the rigid link 310.

The one end 233 is a portion that contacts the rigid link 310 in the clockwise rotation and restricts the rotation of the rigid link 310. The other side end 234 is a portion which contacts the rigid link 310 in the counterclockwise rotation and restricts the rotation of the rigid link 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 rotation plane of the rigid link 310 and contacts the one side end 233 or the other side end 234 when the rigid link 310 is rotated, do.

A virtual plane formed when the rigid link 310 is rotated clockwise or counterclockwise is defined as a rotation plane. In the present embodiment, a plurality of links are rotated such that each link forms a respective rotation plane.

<Composition of Bain>

For the sake of explanation, the direction in which the air is discharged is defined as forward, and the opposite direction is defined as rearward. The ceiling side is defined as the upper side, and the floor is defined as the lower side. Also, 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).

The vane 210 has a vane body 212 formed to extend in the lengthwise direction of the discharge port 102 and a vane body 212 protruded upward from the vane body 212 and connected to the rigid link 310 and the joint link 320, And a coupling flange 214 to which the coupling flange 214 is coupled.

The vane body 212 may have a gently curved surface.

The vane body 212 controls the direction of air discharged along the discharge passage 104. The discharged air hits an upper surface of the vane body 212 to be guided in the flow direction. The flow direction of the discharged air and the longitudinal direction of the vane body 212 are orthogonal or intersecting.

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

The coupling flange 214 is a mounting 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 protrudes upward from the upper surface of the vane body 212. The coupling flange 214 is preferably formed along the flow direction of the discharged air. So that the coupling flange 214 is disposed orthogonally or intersecting with the longitudinal direction of the vane body 212.

The coupling flange 214 is formed so that a direction side (front side) in which air is discharged and a side (rear side) in which air enters are high. In the present embodiment, the coupling flange 214 is formed at a side where the rigid link 310 is coupled with a high side and a 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 vane body 212. [ That is, the rear side end 214a of the coupling flange 214 protrudes toward the rear side of the vane body 212. [

The coupling flange 214 includes a first vane coupling portion 216 to which the other end of the rigid link 310 is rotatably coupled and a second vane coupling portion 216 to which the other side end of the joint link 320 is rotatably coupled. The engaging 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 holes passing through the coupling flange 214.

The first vane coupling portion 216 and the second vane coupling portion 217 may be configured to be axially coupled or hinged. For example, the first vane coupling part 216 and the second vane coupling part 217 may be formed in the same shape as the boss 230.

One end of the rigid link 310 is coupled to the motor case 105, and more specifically, 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 is formed with a boss 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 .

The joint link coupling portion 237 is formed in a hole shape.

The first vane coupling portion 216 is located further rearward beyond the rear side end 212a of the vane body 212 when viewed in plan view and the second vane coupling portion 217 is located on the rear side And is located on the vane body (212).

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

Thus, the first vane coupling portion 216 and the second vane coupling portion 217 form an angle (A) between the predetermined link coupling portions with respect to the vane body 212. The inclination angle (a) of the linkage portion is a structure for effectively implementing the swing motion of the vane 210.

<Configuration of link>

The rigid link 310 is disposed on the rear side relative to the joint link 320.

The rigid link 310 is disposed on the other side of the joint link 320. Thus, the rigid link 310 and the articulated link 320 are rotated on different rotational planes, thereby preventing interference during rotation.

The rigid link body 310 includes a rigid link body 315 and a first rigid link shaft 311 protruding to the other side from the rigid link body 315 and rotatably engaged with the first vane engaging portion 216. [ A second rigid link shaft 312 protruding in one direction from the rigid link body 315 and rotatably coupled to the boss 320 and a second rigid link shaft 312 protruding on the rotation plane of the rigid link body 315 And a link stopper 314 which forms an interlocking with the boss stopper 232 when rotated at a predetermined angle.

The first rigid link shaft 311 provides a structure in which the rigid link body 315 and the vane 210 can rotate relative to each other. In this embodiment, the first rigid link shaft 311 is integrally formed with the rigid link body 315. The first rigid link shaft 311 may be integrally formed with the vane 210 or the coupling flange 214. In this case,

The second rigid link shaft 312 provides a structure in which the rigid link body 315 and the motor case 105 can rotate relative to each other. In the present embodiment, the second rigid link shaft 312 is integrally formed with the rigid link body 315. The second rigid link shaft 312 may be integrally formed with the motor case 105, the cover panel 120, or the case 100, unlike the present embodiment.

The link stopper 314 is disposed on the rotation plane of the rigid link 310. When the rigid link 310 is clockwise rotated, the link stopper 314 contacts the one end 233 of the boss stopper 232 and stops rotating. When the rigid link 310 is rotated counterclockwise, the link stopper 314 or the rigid link body 315 contacts the other end 234 of the boss stopper 232 and stops rotating.

In this embodiment, the link stopper 314 is protruded from the rigid link body 315 to the opposite side of the joint link 320.

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

The joint link 320 includes a first joint link 330 rotatably coupled to the case 100 and a second joint link 330 rotatably coupled to the vane 210 and rotatable with respect to the first joint link 330 A second articulated link 340 and a second articulated link 340 formed on at least one of the first articulated link 330 and the second articulated link 340, And a joint stopper 350 for restricting the angle of rotation during relative rotation.

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, interference during operation can be prevented.

The first joint link 330 includes a first joint link body 335 that is relatively rotated with the case 100 and the second joint link 340 and a second joint link body 335 that is protruded to one side from the first joint link body 335 A first joint link shaft 331 rotatably coupled to the case 100 and a second joint link shaft 332 formed on the first joint link body 335 and rotatably coupled to the second joint link 340. [ 1 connecting link portion 336, as shown in Fig.

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

The rotation plane of the first joint link body 335 is arranged so as to be parallel to the air discharge direction. That is, the rotational plane of the first joint link body 335 is perpendicular to the longitudinal direction of the 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 joint 237 and forms a rotation center by which the first joint link body 335 can be rotated. Since the joint link coupling part 237 is formed in a hole shape, 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 part 237, a hook structure is disposed so that separation is blocked. The first joint link 331 includes a plurality of first link shaft bodies 332 and a first link hook 333 disposed at the ends of the first link shaft body 332.

The first link shaft body 332 forms a part of a cylindrical shape and the first link hook 333 protrudes radially outward from the first link shaft body 332 to form a first link hook 333 .

In the present embodiment, four first link shaft bodies 332 are arranged, and the first link shaft bodies 332 are gathered to form a cylindrical shape. The first link shaft bodies 332 are spaced apart from each other by a predetermined distance and form a space through which the first link shaft bodies 332 can be bent.

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

The first joint link shaft 331 passes through the joint link coupling part 237 and the first link hook 333 forms an interlock 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 surface of the motor case 105.

The first connect link 336 extends from the first joint link body 335. The first connecting link 336 protrudes in the longitudinal direction of the first joint link body 335.

The first connect link portion 336 and the second connect link portion 346 described later are assembled in male and female shapes. In the present embodiment, the first connecting link portion 336 is shaped like a female and the second connecting link portion 346 is male like. Unlike the present embodiment, the male and female shapes may be reversed.

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

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

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

The one-side link portion body 337 and the other-side link portion body 337 are disposed to face each other. The respective joint shaft holes 339 are also arranged to face each other.

The second articulated link 340 includes a second articulated link body 345 that is relatively rotated with respect to the vane 210 and the first articulated link 330, A second joint link shaft 341 rotatably coupled to the vane 210 and a second joint link shaft 342 formed on the second joint link body 345 and rotatably coupled to the first joint link 330. [ 2 connecting link portion 346. [

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

The second articulated link body 345 together with the first articulated link body 335 forms the rotational plane of the articulated link. The rotational plane formed by the articulated link 320 is parallel to the rotational 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 protruded in a direction opposite 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 engagement flange 214. [

The second connecting link portion 346 includes one side link body 347 and the other side link body 347 protruding in the longitudinal direction from one side and the other side of the second connecting body 345, A joint shaft 349 formed on the other link body 347 and the other link body 347 and a space 343 formed between the link body 347 and the other link body 347.

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

The joint shaft 349 may be formed on at least one of the first joint link 330 and the second joint link 340 and the first joint link 330 and the second joint link 340 So as to be relatively rotatable.

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

When the second connecting link portion 346 is inserted into the link insertion space 334 and is engaged with the first link portion 336, the first link portion body 347 and the second link portion body 347 are inserted into the link insertion space 334, And can be flexibly 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 this structure, the first joint link 330 and the second joint link 340 can be rotated relative to each other.

Meanwhile, the articulated stopper 350 restricts a 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 vane 210 can be positioned more accurately.

The joint stopper 350 includes a first joint stopper 352 for limiting the clockwise rotation of the joint link 320 and a second joint stopper 352 for limiting the counterclockwise rotation of the joint link 320. [ Stopper 354.

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 protrudes forward from the second joint link body 345.

The second joint stopper 354 is formed by sloping the rear side surface of the second joint link body 345. The second joint stopper 354 may be formed to be protruded.

The first joint stopper 352 and the second joint stopper 354 may be disposed at various positions in various shapes according to a relative rotation angle to be restricted.

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.

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

<Explanation of operation of joint link>

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

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 FIG. 8 (a).

8 (a), when the rigid link 310 is rotated in the counterclockwise direction, the joint link 320 maintains a state as shown in FIG. 8 (b).

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

8 (a), the first joint stopper 352 is supported on the front side outer surface 351 of the first joint link body 335. In this state, the second joint link 340 can not be further rotated in the counterclockwise direction.

8 (c), the second joint stopper 354 is supported on the rear side outer side surface 353 of the first joint link body 335. As shown in FIG. 8 (a), when the second joint link 340 is rotated clockwise about the joint shaft 349 and can not be further rotated by the second joint stopper 354, (C) of Fig.

<Explanation of Rigid Link and Joint Link Operation>

The operation of the rigid link and the joint link will be described with reference to Figs. 8 and 9. Fig.

8 (a) and 9 (a), the discharge vane 200 is in a non-operating state. When the indoor unit is not operated, the discharge vane 200 maintains the state shown in FIGS. 8A and 9A, and the vane motor 220 rotates the rigid link 310 clockwise . At this time, the link stopper 314 is supported on one end 233 of the boss stopper 232.

The first joint stopper 352 is supported on the front side outer surface 351 of the first joint link body 335. The joint link 320 does not form an angle of incidence but maintains a linearly expanded state.

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

The vane 210 is rotated in a state constrained to the rigid link 310 and the joint link 320 and is positioned in the discharge port 102. [ The lower surface of the vane 210 forms a continuous surface with the cover panel 120.

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 discharge port 102 is guided by the vane 210 and flows horizontally with the ceiling or the ground. When the discharged air flows in a horizontal wind, the flow distance of the air can be maximized.

9 (a), the vane motor 220 rotates the rigid link 310 counterclockwise to form the state shown in FIG. 9 (b). The joint link 320 is rotated around the first joint link shaft 331. [

When the 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.

It is advantageous that the vane 210 is positioned below the discharge port 102 when air is discharged in the horizontal wind.

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

The vane 210 is lowered to the lower side of the discharge port 102 and then aligned in the horizontal direction as shown in FIG. 9B of this embodiment, so that most of the discharged air can be guided in the horizontal direction.

The vane 210 can be moved to the lower side of the discharge port 102 through the rotation of the rigid link 310 and the joint link 320 and the direction of the vane 210 can be formed horizontally. Conventionally, since the vane of the indoor unit is rotated in place, the same effect as the present embodiment can not be realized.

When the horizontal wind is formed through the rigid link 310 and the joint link 320, the vane 210 is positioned below the discharge port 102, and a larger amount of discharge air is supplied through the horizontal wind can do.

When the vane 210 is horizontally disposed and the air discharged from the discharge port 102 is formed as a horizontal wind, the vane 210 is positioned below the discharge port 102.

When the vane 210 is horizontally disposed and the air discharged from the discharge port 102 is formed as a horizontal wind, the vane 210 is positioned on the bottom surface of the case 100 (in this embodiment, And is positioned lower than the bottom surface of the cover panel 120. [0050]

The vane 210 is supported by the rigid link 310 and the joint link 320 in the state of FIG. 9 (b) forming a horizontal wind. Therefore, the air discharged from the discharge port 102 is vane 210 can be suppressed.

When the rigid link 310 is further rotated in the counterclockwise direction through the vane motor 220 in the state of FIG. 9 (b), the state as shown in FIG. 9 (c) can be formed.

The discharge vane 200 in Fig. 9C can discharge the discharge air in the oblique direction between the vertical and horizontal directions. In the present embodiment, this is defined as an oblique wind.

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 link shaft 312, the first rigid link shaft 311 and the second joint link shaft 341 are arranged in a row, the first joint link shaft 331, the joint shaft 349, 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 row, the rigid link 310 is rotated through the vane motor 220 The first joint link 330 and the second joint link 340 start to rotate relative to each other through the joint link shaft 341. [

9 (c), the rigid link 310 and the joint link 320 form a predetermined angle B between them. In the present embodiment, the angle of incidence B may be greater than 0 degrees and less than 90 degrees. The inter-angle (B) may be variously formed according to the length of the rigid link and the joint link or the position of the rotary shaft.

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

9 (c), when the rigid link 310 is further rotated counterclockwise, the vane 210 is rotated clockwise.

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

When the vane 210 forms a vertical wind, the vane crosses or orthogonally intersects the ceiling or the ground, and is arranged in the vertical direction.

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

9 (c) to 9 (d), the vane 210 is rotated in the clockwise direction, unlike the case of changing to the state of FIG. 9 (b) do.

9 (c), the vane 210 must be rotated in a clockwise direction because the vane 210 should be changed in a vertical direction.

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 not be rotated any more. Further, the rigid link 310 is interfered with the other side end 234 of the boss stopper 232, and the rigid link 310 can no longer be rotated.

In a state where the first joint link shaft 331, the joint shaft 349 and the second joint link shaft 341 are arranged in a row, the joint shaft 349 is further rotated counterclockwise to form a vertical wind 9 (d).

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

The second rigid link shaft 312, the first rigid link shaft 311 and the second joint link shaft 341 form a predetermined angle C in the state of FIG. 9 (d) . In the present embodiment, the angle C may be 90 degrees or more and less than 180 degrees. The inter-angle (C) can form an obtuse angle.

The angle D may be varied according to the position of the second rigid link shaft 312, the first rigid link shaft 311, or the second joint link shaft 341.

In the state of FIG. 9 (d) forming a vertical wind, the first joint link 330 and the second joint link 340 form a predetermined angle D between them. In the present embodiment, the interval D may be formed to be 90 degrees or more and less than 180 degrees. The interval D may be formed at an obtuse angle.

The interval D may be variously formed according to the lengths of the first joint link and the second joint link or the position of the rotation axis.

The first rigid link shaft 311 and the second joint link shaft 341 can be arranged vertically in the state of FIG. 9 (d) forming the vertical wind.

The first rigid link 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) forming a vertical wind.

The rigid link 310 is supported by the boss stopper 232 and the joint link 320 is supported by the joint stopper 350 in the state of FIG. It is possible to suppress the vibration caused by the air that hits the vane 210.

Since the rigid link 310 is supported by the boss stopper 232 and the joint link 320 is supported by the joint stopper 350 when the discharge vane 200 forms a vertical air flow, The external force applied to the vane 210 can be dispersed to the rigid link 310 and the joint link 320. [

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, There is an advantage that the rear side end 212a can be closer to the discharge port side.

The rear side end 212a of the vane body 212 is lifted up to the height of the motor case 105 and the air discharged from the discharge port 102 can be guided more effectively downward in the vertical direction.

A part of the vane 210 is brought into close contact with or inserted into the side of the discharge port 102 when the vertical wind is formed through the rigid link 310 and the joint link 320, As shown in FIG. When a part of the vane 210 is not in contact with or inserted into the discharge port 102, some air may be discharged in a direction other than the vertical air flow.

The first joint link shaft 311 of the rigid link 310 can be raised to a height similar to that of the joint shaft 349 so that the rear side end 212a of the vane body 212 can be moved upward 102) side.

Since the first joint link 330 and the second joint link 340 are rotated about the joint axis 349, interference between the joint link 320 and the rigid link 310 can be prevented .

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: Case 101: Suction port
102: discharge port 103:
104: Discharge channel 110: Case housing
120: cover panel 130: indoor heat exchanger
140: Indoor ventilation fan 200: Discharge vane
210: Vane 220: Vane motor
230: boss 232: boss stopper
310: Rigid link 311: First rigid link shaft
312: second rigid link shaft 314: link stopper
315: rigid link body 320: articulated link
330: first joint link 331: first joint link shaft
340: second joint link 341: second joint link shaft
349: Joint axis 350: Joint stopper
352: first joint stopper 354: second joint stopper

Claims (16)

An indoor unit of an air conditioner installed on a ceiling,
The indoor unit includes a case having a suction port and a discharge port formed on a bottom surface thereof;
And a discharge vane disposed in the case and guiding a flow direction of air discharged from the discharge port,
The discharge vane,
A vane for guiding the flow direction of the air;
A rigid link shaft including a first rigid link shaft coupled to the vane so as to be rotatable relative to the vane and a second rigid link shaft coupled to be rotatable relative to the case;
A first joint link including a first joint link shaft coupled to the case so as to be rotatable relative to the case;
A second articulated link including a second articulated link shaft rotatably coupled to the vane;
A joint shaft formed on at least one of the first joint link and the second joint link and coupling the first joint link and the second joint link relative to each other;
And a vane motor installed in the case and providing a driving force to either the rigid link or the first joint link for adjusting the angle of the vane. The method according to claim 1,
When the vane is arranged horizontally and air discharged from the discharge port is formed as a horizontal wind,
And the vane is positioned below the discharge port. The method according to claim 1,
When the vane is arranged horizontally and air discharged from the discharge port is formed as a horizontal wind,
Wherein the vane is spaced apart from a bottom surface of the case by a predetermined distance, and is positioned lower than a bottom surface of the case. The method according to claim 1,
Wherein the first joint link and the second joint link are arranged in a row when the vane is arranged horizontally and air discharged from the discharge port is formed as a horizontal wind. The method according to claim 1,
When the vane is arranged vertically with respect to the ceiling or the ground and air discharged from the discharge port is formed into vertical wind,
And a part of the vane is located inside the discharge port. The method according to claim 1,
When the vane is arranged vertically with respect to the ceiling or the ground and air discharged from the discharge port is formed into vertical wind,
And an angle (C) formed by the first rigid link shaft, the second rigid link shaft, and the second joint link shaft is formed at an obtuse angle. The method according to claim 1,
When the vane is arranged vertically with respect to the ceiling or the ground and air discharged from the discharge port is formed into vertical wind,
And an angle (D) formed by the first joint link shaft, the joint shaft, and the second joint link shaft is formed at an obtuse angle. The method according to claim 1,
When the vane is arranged vertically with respect to the ceiling or the ground and air discharged from the discharge port is formed into vertical wind,
Wherein the first joint link shaft, the second rigid link shaft, and the second joint link shaft are arranged in a line. The method according to claim 1,
When the vane is arranged vertically with respect to the ceiling or the ground and air discharged from the discharge port is formed into vertical wind,
Wherein the first joint link shaft, the second rigid link shaft, and the second joint link shaft are arranged in a line and are disposed orthogonally to the ground or the ceiling. The method according to claim 1,
Further comprising a boss stopper disposed in the case and restricting a rotation angle of the rigid link,
Wherein the boss stopper includes one end that limits a rotation angle of the rigid link when the rigid link is rotated clockwise,
And an other side end restricting a rotation angle of the rigid link when the rigid link is rotated in a counterclockwise direction. The method of claim 10,
Further comprising a boss disposed in the case and to which the second rigid link shaft is rotatably coupled,
Wherein the boss is protruded toward the vane, and the boss stopper is formed in the boss. The method of claim 11,
Wherein the second rigid link shaft is disposed through the boss, and the vane motor is connected to the second rigid link shaft disposed through the boss to provide a driving force. The method according to claim 1,
Further comprising a joint stopper disposed in at least one of the first joint link and the second joint link and restricting a relative rotation angle when relative rotation is performed around the joint axis. 14. The method of claim 13,
The articulated stopper
Wherein the second articulated link is disposed on any one of the first articulated link and the second articulated link and is supported on the other one and is further rotated counterclockwise when the second articulated link is rotated counterclockwise with respect to the articulated shaft A first articulating stopper limiting the first articulation stopper;
Wherein the first joint link is disposed on at least one of the first joint link and the second joint link, and when the second joint link is rotated clockwise with respect to the joint axis, And a second joint stopper provided on the second joint stopper. 15. The method of claim 14,
When the vane is arranged horizontally and air discharged from the discharge port is formed as a horizontal wind,
Wherein the first joint stopper disposed on any one of the first joint link and the second joint link is supported on the other one of the first joint link or the second joint link, Of the air conditioner (1). 15. The method of claim 14,
When the vane is arranged vertically with respect to the ceiling or the ground and air discharged from the discharge port is formed into vertical wind,
The second articulated stopper disposed on any one of the first articulated link and the second articulated link is supported on the other one of the first articulated link and the second articulated link, Of the air conditioner (1).

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