KR20190032942A - Method for controlling of indoor unit of air conditioner - Google Patents

Abstract

The present invention includes: a step of actuating a compressor (S10); a step of determining an operation time of the compressor (S20); a step of, when the step S20 is satisfied, determining whether the level of condensate is a first height (H1) or more, through a water level sensor disposed in a condensate storage unit (S30); a step of, when the step S30 is satisfied, determining whether the water level of the condensate is a second height (H2), which is higher than the first height, or more, through the water level sensor (S40); a step of, when the step S40 is satisfied, determining whether the water level of the condensate is a third height (H3), which is higher than the second height, or more, through the water level sensor (S60); a step of, when the step S60 is satisfied, turning off the compressor (S70); and a step of, when the step S60 is satisfied, operating a drain pump to form the water level of the condensate at less than the first height. The present invention can detect the water level of the condensate in multiple stages through the water level sensor, and can determine the driving rate of the drain pump according to a detection time for which the condensate is raised from water level A to water level B.

Description

[0001] The present invention relates to a method for controlling 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 case of a ceiling-type indoor unit, the condensed water generated in the indoor heat exchanger can be stored inside the case.

The drain pump installed in the conventional ceiling-type indoor unit uses a float sensor and operates the drain pump when the condensed water is at a certain water level or higher, so that noise is frequently generated.

Particularly, when the drain pump using the conventional float sensor is operated when the end of the pump and the surface of the condensed water come into contact with each other, the first suction noise is excessively generated.

Korea Patent No. 10-0679838 B1

An object of the present invention is to provide an indoor unit control method of an air conditioner capable of minimizing condensate suction noise during operation of a drain pump.

An object of the present invention is to provide an indoor unit control method of an air conditioner that adjusts a driving rate of a drain pump according to the generation rate of condensed water.

An object of the present invention is to provide an indoor unit control method of an air conditioner capable of stopping a compressor according to the level of condensed water.

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.

According to the present invention, the driving rate of the drain pump is determined according to the time the condensed water rises from the first height to the second height, and the driving rate of the drain pump can be set differently according to the humidity of the space in which the indoor unit is installed.

The present invention provides a method of operating a compressor, comprising: (S10) starting a compressor; Determining an operation time of the compressor (S20); Determining whether the water level of the condensed water is equal to or greater than the first height H1 through the water level sensor disposed in the condensed water storage unit when the step S20 is satisfied; Determining whether the water level of the condensed water is equal to or greater than a second height (H2) larger than the first height (S40) through the water level sensor when the step S30 is satisfied; If the step S40 is satisfied, it is determined whether the water level of the condensed water is equal to or greater than a third height H3 greater than the second height S60. Closing the compressor (S70) if the step S60 is satisfied; When the step S60 is satisfied, the drain pump is operated to form the drain pump below the first height (S80).

If the step S30 is satisfied, the drain pump can be turned off or kept off.

If the step S60 is not satisfied, the drain pump can be operated at the fourth drive ratio.

If the step S40 is unsatisfied, the driving rate of the drain pump can be determined according to the sensing time at which the condensed water reaches the second height H2 from the first height.

If it is determined that the water level of the condensed water reaches the second height H2 during the first sensing time, if the water level of the condensed water reaches the second height H2 within the first sensing time, Determines whether the water level of the condensed water reaches a second height (H2) during a second sensing time longer than the first sensing time, drives the drain pump at a first driving rate, The drain pump can be driven at the second driving rate.

The first drive ratio may be set to be larger than the second drive ratio.

If it is determined that the water level of the condensed water reaches the second height H2 during the first sensing time, if the water level of the condensed water reaches the second height H2 within the first sensing time, Determines whether the water level of the condensed water reaches a second height (H2) during a second sensing time longer than the first sensing time, drives the drain pump at a first driving rate, The drain pump is driven at the second drive ratio or the water level of the condensed water reaches the second height H2 during the third sensing time longer than the second sensing time And when the water level of the condensed water reaches the second height H2 within the third sensing time, the drain pump can be driven at the third driving rate.

The first drive ratio may be larger than the second drive ratio, and the second drive ratio may be set to be larger than the third drive ratio.

The present invention provides a method of operating a compressor, comprising: (S10) starting a compressor; Determining an operation time of the compressor (S20); Determining whether the water level of the condensed water is equal to or greater than the first height H1 through the water level sensor disposed in the condensed water storage unit when the step S20 is satisfied; Determining whether the water level of the condensed water is equal to or greater than a second height (H2) larger than the first height (S40) through the water level sensor when the step S30 is satisfied; If the step S40 is unsatisfied, the driving rate of the drain pump can be determined according to the sensing time at which the condensed water reaches the second height H2 from the first height.

If it is determined that the water level of the condensed water reaches the second height H2 during the first sensing time, if the water level of the condensed water reaches the second height H2 within the first sensing time, Determines whether the water level of the condensed water reaches a second height (H2) during a second sensing time longer than the first sensing time, drives the drain pump at a first driving rate, The drain pump can be driven at the second driving rate.

The indoor unit control method 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 the level of the condensed water is sensed at multiple stages through the level sensor, and the driving rate of the drain pump is determined according to the sensing time when the condensed water rises from the level A to the level B.

Second, the present invention has an advantage in that the driving rate of the drain pump can be driven with high, medium, and low according to the generation rate of the condensed water.

Third, the present invention has an advantage in that when the level of the water level A, the level B, and the level C of the water level are detected at the time of starting the compressor, it is determined that the condensation water is overflowing dangerous period and the compressor is stopped.

Fourth, the present invention is advantageous in that the driving rate of the drain pump determined at the time of starting the compressor is continuously applied until the operation of the indoor unit is stopped.

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 perspective view showing a bottom surface of the drain panel shown in FIG.
4 is a perspective view showing the condensed water storage portion shown in FIG.
5 is a perspective view showing the ultraviolet sterilizing apparatus shown in FIG.
6 is a cross-sectional view of the ultraviolet sterilizing apparatus shown in Fig.
7 is an inner perspective view of the window cover shown in Fig.
FIG. 8 is a first perspective view of the discharge vane shown in FIG. 1; FIG.
FIG. 9 is a second perspective view of another angle of the discharge vane shown in FIG. 1; FIG.
10 is a plan view of Fig.
11 is a perspective view of the joint link shown in Fig.
12 is an exploded perspective view of Fig.
Fig. 13 is an operational example of the joint link shown in Fig. 11. Fig.
Fig. 14 is a view showing an operation example of the discharge vane shown in Fig.
15 is a cross-sectional view illustrating a condensed water discharge apparatus according to an embodiment of the present invention.
16 is a flowchart showing a control method of a condensed water discharge apparatus according to an embodiment of the present invention.

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, And a drain panel 150 disposed between the case housing 110 and the cover panel 120 and on which the indoor heat exchanger 130 is mounted do.

The cover panel 120 may be integrally formed with the case housing 110 and may be formed with an open upper side. 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.

15 is a cross-sectional view illustrating a condensed water discharge apparatus according to an embodiment of the present invention.

<Configuration of drain panel>

In this embodiment, the drain panel 150 is fixed to the case housing 110, and the cover panel 120 is fixed to the drain panel 150.

The indoor heat exchanger (130) and the indoor ventilation fan (140) are disposed above the drain panel (150). Particularly, the indoor heat exchanger 130 is mounted on the drain panel 150 and supported.

The drain panel 150 includes a panel body 170 having a panel suction port 151 communicating with the suction port 101 and a panel discharge port 152 communicating with the discharge port 102, A condenser 154 for condensing the condensed water in the condenser 154 and a condenser 154 for condensing the condensed water in the condenser 154, And a condensate drainage device 300 for pumping and discharging the stored condensate water.

The indoor unit further includes an ultraviolet ray generator 180 disposed in the panel body 170 in contact with the condensate storage unit 160 and sterilizing the condensed water by irradiating the condensed water stored in the condensate storage unit 160 with ultraviolet rays can do.

In the present embodiment, the condensed water storage unit 160 is integrally formed with the panel body 170.

In this embodiment, the drain panel 150 is formed in a rectangular shape when viewed in a plan view. Unlike the present embodiment, the drain panel 150 may have various planar shapes.

The suction port 101 is disposed below the panel suction port 151. The discharge port (102) is disposed below the panel discharge port (152).

In this embodiment, the discharge port (102) and the panel discharge port (152) are formed at four locations on each side.

The panel discharge port 152 is disposed at the edge of the panel suction port 151, and a plurality of the panel discharge port 152 are disposed along the panel suction port 151.

The panel suction port 151 and the panel discharge port 152 are formed in the panel body 170. The panel body 170 is formed to have a vertical thickness.

The mounting portion 154 is recessed downwardly of the panel body 170. The mounting space 155 is formed inside the mounting portion 154 and the lower end of the indoor heat exchanger 130 is inserted into the mounting space 155. The indoor heat exchanger 130 is inserted into the mounting space 155 and is mounted on the mounting portion 154 and supported. The indoor heat exchanger 130 may be fastened to the drain panel 150 while being mounted on the mounting portion 154.

The mounting portion 154 is formed in a rectangular shape that surrounds the panel suction port 151 when seen in plan view.

The indoor heat exchanger 130 is inserted into the mounting portion 154 and vertically installed. The indoor heat exchanger (130) is arranged in a rectangular shape when viewed in a plane along the plane shape of the mounting portion (154).

A slope for guiding the condensed water to the condensed water storage part 160 is formed in the mounting part 154. The condensed water generated in the indoor heat exchanger (130) flows down to the mounting portion (154). The condensed water of the mounting portion 154 flows toward the condensed water storage portion 160 along the inclination of the mounting portion 154.

The condensed water storage part 160 is formed on the upper surface of the panel body 170. The condensed water storage part 160 is formed in communication with the mounting part 154 and is provided with condensed water of the mounting part 154.

The bottom surface 161 of the condensed water storage part 160 is formed lower than the bottom surface of the mounting space 155 and the water of the mounting part 154 flows to the condensed water storage part 160 by its own weight.

The condensed water storage unit 160 may be disposed at a plurality of locations on the drain panel 150, but only one location is formed in the present embodiment. In the present embodiment, the condensed water storage part 160 is positioned between the two panel discharge openings 152.

The upper surface 164 of the condensed water storage part 160 is opened.

The condensed water drainage device 300 may be disposed above or below the bottom surface 161 of the condensed water storage part 160. In the present embodiment, the condensate drain apparatus 300 is disposed inside the condensed water storage unit 160 and positioned above the bottom surface 161. The condensed water drainage device 300 may drain the condensed water from the condensed water storage part 160 after sucking the condensed water.

In this embodiment, a drain pump mounting portion 163 formed to be downwardly concave from the bottom surface 161 is formed.

The drain pump mounting portion 163 is positioned lower than the bottom surface 161.

The condensed water storage part 160 is formed by opening the inner side surface 165. The condensed water can be introduced through the opened inner side 165.

A plurality of protrusions 166 are disposed on the front side of the inner side surface 165 and the protrusions 166 protrude upward from the panel body 170.

The plurality of protrusions 166 are spaced apart from each other by a predetermined distance, and are disposed so as to surround the inner surface of the condensed water storage portion 160.

The foreign substances contained in the condensed water are caught between the protrusions 166.

The ultraviolet ray generator 180 is disposed at a position in contact with the condensed water storage part 160.

<Configuration of condensate drainage device>

The condensate drainage device 300 includes a drain pump 310 installed in the case 100 for pumping condensate water and a drain pump 310 installed inside the case 100 for condensing the condensed water stored in the condensate storage unit 160 And a water level sensor 320 for sensing the water level.

In the present embodiment, the drain pump 310 and the water level sensor 320 are installed in the drain panel 150.

The drain pump 310 is provided with a pump suction port 311 through which condensed water is sucked. The pump inlet 311 is located in the condensate storage 160. The pump suction port 311 is positioned higher than the bottom surface 161 of the condensed water storage unit 160.

The drain pump 310 uses a DC motor. The DC motor can control the operation rate.

In the present embodiment, the bottom surface 161 and the pump suction port 311 are spaced apart from each other by a predetermined distance S.

In this embodiment, the level sensor 320 is a digital level sensor other than a float sensor. The digital water level sensor can sense a change in the water level of the condensed water.

In the present embodiment, the digital level sensor senses the level of the condensed water in three stages. To this end, the digital level sensor includes a first sensing unit 321, a second sensing unit 322, and a third sensing unit 323.

The first sensing unit 321, the second sensing unit 322, and the third sensing unit 323 sense the level of water at different heights.

The first sensing unit 321, the second sensing unit 322, and the third sensing unit 323 may sense the water level in a non-contact manner that senses the capacitance of the condensed water. In this embodiment, a contact method which directly contacts the condensed water to sense the water level is used.

The first sensing unit 321 senses condensed water at a low level and the second sensing unit 322 senses condensed water at a low level. And the third sensing unit 323 senses the high-level condensed water.

The first sensing unit 321, the second sensing unit 322 and the third sensing unit 323 are all arranged in the vertical direction. The end of the first sensing unit 321 is positioned at the lowest position. The end of the portion 323 is positioned at the highest position.

The height from the bottom surface 161 of the condensed water storage part 160 to the lower end of the first sensing part 321 is defined as the first sensing height H1 and the height of the bottom surface 161 of the condensed water storage part 160 The height of the second sensing unit 322 from the bottom surface 161 of the condensed water storage unit 160 to the second sensing height H2 of the third sensing unit 323, And the height to the lower end is defined as the third sensing height H3.

The first sensing height H1 is positioned higher than the pump inlet 311. The pump inlet 311 and the first sensing height H1 are separated by a predetermined gap G. [ In this embodiment, the pump inlet 311 and the first sensing height H1 are separated by 3 mm.

The predetermined gap G is set in order to reduce suction noise of the pump suction port 311. When the pump suction port 311 is in contact with the surface of the condensed water, a large amount of air is sucked into the drain pump 3310 during suction of the condensed water, thereby generating suction noise.

The drain pump 310 is driven to block the suction of air into the pump suction port 311 in a state in which the pump suction port 311 is immersed in condensed water, thereby minimizing suction noise.

The predetermined gap G is height considering the surface tension of the condensed water.

&Lt; Configuration of ultraviolet ray generator >

The ultraviolet ray generator 180 is assembled to the panel body 170. At least one surface of the ultraviolet ray generator 180 is disposed to face the condensed water storage part 160. The ultraviolet ray generator 180 is disposed in direct contact with the condensed water stored in the condensate storage 160.

The panel body 170 is provided with an installation groove 175 in which the ultraviolet ray generator 180 is installed. The ultraviolet ray generator 180 is inserted into the mounting groove 175 and is coupled to the panel 170.

The ultraviolet ray generator 180 includes a housing 182 coupled to the panel body 170 to shield the installation groove 175 and an ultraviolet lamp 190 disposed in the installation groove 175 for generating ultraviolet rays And a window 186 disposed in the housing 182 and made of a transparent material and transmitting ultraviolet rays generated from the ultraviolet lamp 184. [

At least a portion of the housing 182 is exposed to the condensed water storage part 160. The housing 182 may be formed in a closed form in its entirety. In the present embodiment, when fitted to the mounting groove 175, the mounting groove 175 is formed in a cover shape so as to close the mounting groove 175.

The mounting groove 175 is formed by opening the upper surface and the surface contacting with the condensed water storage portion 160 (defined as the front surface of the mounting groove in this embodiment).

The housing 182 is composed of an upper cover 181 and a front cover 183. The upper cover 181 is formed to be hermetically sealed. At least a part of the front cover 183 is formed with a transmission hole 185. The through hole 185 is disposed toward the condensed water storage part 160.

The edge of the window 186 may be packed or sealed to prevent condensate from penetrating into the mounting groove 175 through the through hole 185.

In this embodiment, the transmission hole 185 is sealed through the window 186, but unlike the present embodiment, the transmission hole 185 can be opened.

When the condensed water does not flow into the housing 182, it is not necessary to provide the window 186 in the through hole 185. In this embodiment, a window 186 is provided to block the entry of dust, condensate, and moisture into the housing 182.

In this embodiment, a separate structure shields the transmission hole 185 through the window 186. However, unlike the present embodiment, the housing 182 may be formed of a material that can transmit ultraviolet rays. In this case, the configuration of the separate transmission hole 185 and window 186 can be omitted.

The window 186 is provided on the front cover 183 and the window 186 covers the transmission hole 185.

The lower end of the front cover 183 is assembled to the panel body 170 in an interference fit manner. In the present embodiment, the front cover 183 and the panel body 170 are constrained through the concavo-convex shape. A cover protrusion 189 protruding downward from the lower end of the front cover 183 is formed and a cover fitting portion 179 is formed in the panel body 170 so that the cover protrusion 189 can be interference.

The cover projection 189 and the cover fitting portion 179 block penetration of the condensed water into the installation groove 175. The cover projecting portion 189 and the cover fitting portion 179 can be inhibited to block penetration of the condensed water.

Also, the upper cover 181 is also assembled to the panel body 170 in an interference fit manner. A cover fitting groove 181a is formed on the end side of the upper cover 181 and is assembled in the form of an interference fit with the corner forming the installation groove 175. [

The housing 182 is formed of a material that can not transmit ultraviolet rays. The housing 182 blocks ultraviolet radiation from being radiated to the outside, and allows ultraviolet rays to be projected only to the window 186.

When ultraviolet light is projected to the surroundings, it can be harmful to human body.

The ultraviolet lamp 184 is in the form of a plate, and generates ultraviolet rays through surface emission. The ultraviolet lamp 184 generates ultraviolet rays through an applied power source. The ultraviolet lamp 184 is connected to a printed circuit board, and unillustrated wires are disposed to supply a power and a control signal to the ultraviolet lamp 184.

The ultraviolet lamp 184 is disposed inside the housing 182 and is not in contact with the condensed water. The ultraviolet lamp 184 is in non-contact with the condensed water, thereby preventing a short circuit. The ultraviolet ray generating device 180 is configured to project ultraviolet rays in a state in which the contact between the ultraviolet ray lamp 184 and the condensed water is blocked, thereby performing sterilization.

And an electric wire hole 188 communicating with the installation groove 175 for connecting the electric wire to the ultraviolet lamp 184 is disposed.

In the present embodiment, the electric wire hole 188 is formed through the panel body 170 forming the installation groove 175.

A structure for fixing the ultraviolet lamp 184 is disposed in the mounting groove 175. Preferably, the ultraviolet lamp 184 is disposed to face where the condensed water flows. Since the condensed water is high on the lower side of the condensed water storage part 160, the ultraviolet lamp 184 is preferably inclined downward.

A first fixing part 191 and a second fixing part 192 are disposed to fix the ultraviolet lamp 184 arranged obliquely.

The first fixing part 191 supports the upper end of the ultraviolet lamp 184 and the second fixing part 192 supports the lower end of the ultraviolet lamp 184.

The first fixing part 191 is formed on the panel body 170. The first fixing part 191 is formed to extend upward from the panel body 170 forming the installation groove 175.

The first fixing part 191 is located on the side of the ultraviolet lamp 184 so as not to block ultraviolet rays generated from the ultraviolet lamp 184.

The first fixing part 191 is formed in a letter "A" shape and the upper end is bent toward the ultraviolet lamp 184.

The second fixing part 192 supports the lower side of the ultraviolet lamp 184. The second fixing part 192 protrudes upward from the panel body 170 forming the insertion groove 175.

The ultraviolet lamp 184 is positioned between the first fixing portion 191 and the second fixing portion 192.

The upper end of the ultraviolet lamp 184 is supported by the first fixing part 191 and is inclined toward the condensed water storage part 160 while the lower end of the ultraviolet lamp 184 is supported by the second fixing part 192.

The ultraviolet rays projected to the condensed water storage part 160 through the window 186 not only sterilize the condensed water stored in the condensed water storage part 160 but also sterilize the air passing through the condensed water storage part 160.

The ultraviolet lamp 184 may be sterilized with respect to the air that flows through the inner surface 165 of the condensed water storage unit 160 and flows through the upper surface 164.

This is possible because only a portion of the window 186 is immersed in the condensed water.

<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. 8 is a first perspective view of the discharge vane shown in FIG. 1, FIG. 9 is a second perspective view of another angle of the discharge vane shown in FIG. 1, FIG. 10 is a plan view of FIG. 9, FIG. 12 is an exploded perspective view of FIG. 11. 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. 13 is an operation example of the joint link shown in Fig. 11, and Fig. 14 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. 13 (a).

13 (a), when the rigid link 310 is rotated in the counterclockwise direction, the joint link 320 maintains a state as shown in FIG. 13 (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. 13 (c).

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

13 (c), the second joint stopper 354 is supported on the outer side surface 353 on the rear side of the first joint link body 335. As shown in FIG. 13 (a), when the second joint link 340 is rotated clockwise about the joint axis 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. 13 and 14. Fig.

13 (a) and 14 (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. 13A and 14A, 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. 14 (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.

14 (a), the vane motor 220 rotates the rigid link 310 counterclockwise to form the state shown in FIG. 14 (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. 14A, 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. 14B 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. 14 (b) forming a horizontal wind, so that 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. 14 (b), the state shown in FIG. 14 (c) can be formed.

The discharge vane 200 of Fig. 14 (c) 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.

14 (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. [

In the state of Fig. 14C, 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. 14 (c), the state shown in FIG. 14 (d) can be formed.

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

In the state shown in FIG. 14 (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.

14 (c) to 14 (d), the vane 210 is rotated in the clockwise direction, unlike the case of changing to the state of FIG. 14 (b) do.

In the state of FIG. 14 (c), the vane 210 must be rotated in the clockwise direction because the vane 210 should be changed in the vertical direction.

14 (d), the second joint stopper 354 is supported on the rear side outer side 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 14 (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. 14 (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. 14 (d) forming the 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. 14 (d) forming 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. 14 (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 .

16 is a flowchart showing a control method of a condensed water discharge apparatus according to an embodiment of the present invention.

<Control Method of Condensate Drainage Device>

The control method of the indoor unit of the air conditioner according to the present embodiment includes a step S10 of starting the compressor, a step S20 of determining the operation time of the compressor, Determining whether the level of the condensed water is equal to or greater than the first height through the level sensor 320 when the step S30 is satisfied; (S60) of determining whether the level of the condensed water is equal to or greater than the third height through the level sensor 320 when the step S40 is satisfied; and if the step S60 is satisfied, And a step S80 of driving the drain pump 310 to be less than the first height after the step S70.

And a level A when the level of the condensed water is equal to or higher than the first level. And the level of the condensed water is defined as a water level B when the water level is equal to or higher than the second height. And the level of the condensed water is defined as a water level C when the water level is equal to or higher than the third height.

The drain pump 310 is driven when the level A is higher than the first level. When the level is below the level A, suction noise is generated because air is sucked through the pump suction port 311.

When the level is below the level A, the condensed water is not detected through the first sensing unit 321. That is, it is a minimum condition that the drain pump 310 can be driven when the condensed water is sensed in the first sensing unit 321.

If the step S30 is not satisfied, the drain pump 310 maintains the off state, and if the step S30 is satisfied, the drain pump 310 can be turned on.

In this embodiment, even if the step S30 is satisfied, the drain pump 310 is not driven. When the drain pump 310 is operated at the level A, the remaining condensed water can be discharged immediately, but operational noise due to the operation of the drain pump 310 can be frequently generated.

Thus, in this embodiment, the drain pump 310 is operated when the level A or the level B or higher. That is, the drain pump 310 can be operated when the condensed water is higher than the first height H1 or higher than the second height H2.

If the steps S30 and S40 are satisfied, a large amount of condensed water is stored in the condensed water storage unit 160. In step S60, it is determined whether the condensed water level is equal to or greater than the third height H3.

The step S60 is satisfied when the condensed water is formed at the third height H3 or more, regardless of the initial start of the compressor. In this case, it is necessary to stop the compressor and shut off the generation of condensed water.

The step S60 is for preventing overflow of the condensed water.

During the last drive, condensate may not be discharged due to a drain pump failure or clogging of drain hose. Or the condensate may have not been drained due to abnormal indoor unit shutdown.

The condensed water in the condensed water storage unit 160 may not be discharged due to various reasons, and the step S60 may determine this.

If the control unit satisfies the step S60, the control unit turns off the compressor in step S70 and drives the drain pump 310 in step S80.

In step S80, the drain pump 310 is continuously driven until the level of the condensed water becomes less than the level A (first height H1). In step S80, the control unit may display an error code.

In step S80, the drain pump 310 may be operated at a driving rate of 100%. Since the compressor is in a stopped state, it may be operated at a driving rate of less than 100%, and when it is less than 100%, it takes more time to drain the condensed water.

The driving rate of the drain pump 310 in the step S80 is defined as a fourth driving rate.

If the operation time of step S80 is the sleeping time of the user, the driving rate of the drain pump 310 may be made low to reduce the operating noise. For example, the sleeping time may be from 10 pm to 6 am.

On the other hand, when the step S40 is not satisfied, the water level of the condensed water is formed to be less than the first height H1 and less than the second height H2. In this case, the generation rate of the condensed water over time is determined, and the driving rate of the drain pump 310 is determined through the determination.

If the step S30 is satisfied and the step S40 is unsatisfied, it is determined whether the water level of the condensed water reaches the second height H2 during the first sensing time (for example, "0 to 5").

When the level of the condensed water reaches the second height H2 within the first sensing time, the drain pump 310 is driven at a first driving rate (for example, 70%).

If the step S30 is satisfied and the step S40 is unsatisfied, it is determined whether the water level of the condensed water reaches the second height H2 during the second sensing time (for example, 5 to 10 minutes).

When the level of the condensed water reaches the second height H2 within the second sensing time, the drain pump 310 is driven at a second driving rate (for example, 50%).

If the step S30 is satisfied and the step S40 is unsatisfied, it is determined whether the water level of the condensed water reaches the second height H2 during the third sensing time (for example, exceeding 10 minutes).

When the level of the condensed water reaches the second height H2 within the third sensing time, the drain pump 310 is driven at a third driving rate (for example, 30%).

When the condensed water reaches the water level B during the first sensing time, the controller determines that the generation rate of the condensed water is over the normal range and the condensation amount of the water is excessive. In this case, the drain pump 310 is operated at a first driving rate (for example, 70%). (S51)

When the condensed water reaches the water level B during the second sensing time, the controller determines that the generation rate of the condensed water is in the normal range and the condensation amount of the water is the general location. In this case, the drain pump 310 is operated at a second driving rate (for example, 50%). (S52)

When the condensed water reaches the water level B during the third sensing time, the controller determines that the generation speed of the condensed water is below the normal range and the condensation amount of water is small. In this case, the drain pump 310 is operated at a third driving rate (for example, 30%). (S53)

Thus, the control unit has an advantage of determining the driving rate of the drain pump according to the sensing time.

When the humidity in the air is excessive, the driving rate of the drain pump 310 is set to be "strong ", so that the condensation water can be prevented from overflowing even if a little noise is generated.

When the humidity in the air is in the normal range, the drive ratio of the drain pump 310 is set to "medium", so that the noise due to the operation of the drain pump can be reduced.

Further, when the humidity in the air is lower than the normal range, the driving rate of the drain pump 310 is set to "weak ", so that the noise due to the operation of the drain pump can be minimized.

On the other hand, during the operation of the indoor unit, even if the water level drops below the first height H1 by the operation of the drain pump 310, the driving rate of the drain pump 310 determined in step S50 is maintained.

It is not necessary to determine again the driving rate of step S50 and it is preferable to keep the driving rate of the drain pump 310 determined in step S50.

When the cooling load of the room is satisfied during the operation of the indoor unit, the compressor can be turned off. Thereafter, when the cooling load is again required, the compressor can be restarted again. In this way, when the compressor is started during operation, it is not necessary to again determine the drive rate of the drain pump 310. [

However, if the compressor is turned on after the indoor unit is turned off, the control method of the condensed water drainage apparatus described above is performed again, and the driving rate of the drain pump 310 is determined again.

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 150: Drain panel
160: condensed water storage unit 170: panel body
180: ultraviolet ray generator 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 (10)

A control method for an indoor unit of an air conditioner installed on a ceiling,
A step (S10) in which the compressor is started;
Determining an operation time of the compressor (S20);
Determining whether the water level of the condensed water is equal to or greater than the first height H1 through the water level sensor disposed in the condensed water storage unit when the step S20 is satisfied;
Determining whether the water level of the condensed water is equal to or greater than a second height (H2) larger than the first height (S40) through the water level sensor when the step S30 is satisfied;
If the step S40 is satisfied, it is determined whether the water level of the condensed water is equal to or greater than a third height H3 greater than the second height S60.
Closing the compressor (S70) if the step S60 is satisfied;
(S80) when the step S60 is satisfied and the drain pump is operated to be less than the first height (S80). The method according to claim 1,
And when the step S30 is satisfied, the drain pump is turned off or kept off. The method according to claim 1,
And if the step S60 is not satisfied, the drain pump is operated at a fourth drive ratio. The method according to claim 1,
If the step S40 is unsatisfactory,
Wherein the driving rate of the drain pump is determined according to a sensing time when the condensed water rises from the first height to the second height (H2). The method according to claim 1,
If the step S40 is unsatisfactory,
Wherein the control unit determines whether the level of the condensed water is raised to the second height H2 during the first sensing time and if the level of the condensed water rises to the second height H2 within the first sensing time, , Or
When the level of the condensed water rises to the second height H2 during the second sensing time longer than the first sensing time and when the level of the condensed water rises to the second height H2 within the second sensing time, And the drain pump is driven at a second drive ratio. The method of claim 5,
Wherein the first drive ratio is set to be larger than the second drive ratio. The method according to claim 1,
If the step S40 is unsatisfactory,
Wherein the control unit determines whether the level of the condensed water is raised to the second height H2 during the first sensing time and if the level of the condensed water rises to the second height H2 within the first sensing time, , Or
When the level of the condensed water rises to the second height H2 during the second sensing time longer than the first sensing time and when the level of the condensed water rises to the second height H2 within the second sensing time, Drives the drain pump at a second drive ratio, or
Wherein the control unit determines whether the level of the condensed water is raised to the second height H2 during the third sensing time longer than the second sensing time and if the level of the condensed water is increased to the second height H2 within the third sensing time, And the drain pump is driven at a third drive ratio. The method of claim 7,
Wherein the first drive ratio is larger than the second drive ratio and the second drive ratio is set larger than the third drive ratio. A control method for an indoor unit of an air conditioner installed on a ceiling,
A step (S10) in which the compressor is started;
Determining an operation time of the compressor (S20);
Determining whether the water level of the condensed water is equal to or greater than the first height H1 through the water level sensor disposed in the condensed water storage unit when the step S20 is satisfied;
Determining whether the water level of the condensed water is equal to or greater than a second height (H2) larger than the first height (S40) through the water level sensor when the step S30 is satisfied;
If the step S40 is unsatisfactory,
Wherein the driving rate of the drain pump is determined according to a sensing time when the condensed water reaches the second height (H2) at the first height. The method of claim 9,
If the step S40 is unsatisfactory,
Wherein the control unit determines whether the water level of the condensed water reaches the second height H2 during the first sensing time and when the water level of the condensed water reaches the second height H2 within the first sensing time, , Or
Wherein when the water level of the condensed water reaches the second height (H2) during the second sensing time longer than the first sensing time, and if the water level of the condensed water reaches the second height (H2) And the drain pump is driven at a second drive ratio.

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