KR102500804B1 - louver for airconditioner - Google Patents

Abstract

An electrical panel of an air conditioner according to one aspect of the present invention includes an installation portion in which the electrical component is installed; An opening is formed at one side of the installation part, and a support surface on which the terminal block is supported is included in the opening and the electrical panel to which the terminal block is coupled.
According to the present invention, since a plurality of cables can be fastened to the terminal block, the cables can be arranged so that they do not get tangled with each other, so that short circuits or wiring of cables can be prevented, and the cables fastened to the terminal block are guided by the fixing member. Therefore, since the cable can be placed in the outdoor unit in a straight stretched state, bending or twisting of the cable can be prevented. In addition, since the cable fastened to the terminal block is guided by the fixing member, it is possible to prevent the cable from being separated from the terminal block.

Description

Louver device of air conditioner {louver for airconditioner}

The present invention relates to a louver device for an air conditioner.

An air conditioner is a home appliance for maintaining indoor air in the most suitable state according to use and purpose. For example, the indoor air is adjusted to a cool cooling state in summer, a warm heating state in winter, and also the indoor humidity is controlled and the indoor air is adjusted to a pleasant clean state.

Depending on how the air conditioner is installed, it can be divided into a wall-mounted air conditioner configured to be mounted on a wall and a slim air conditioner configured to be installed in a living room.

In addition, depending on the capacity of the indoor unit, a single type air conditioner configured with a capacity to drive one indoor unit and configured to be used in a narrow place such as a home, and a medium-large sized air conditioner configured with a very large capacity to be used in a company or restaurant It can be divided into a multi-air conditioner composed of a roof tile and a capacity capable of sufficiently driving a plurality of indoor units.

A refrigeration cycle is driven in the air conditioner. The device driving the refrigeration cycle includes a compressor for compressing the refrigerant, a condenser for condensing the refrigerant compressed in the compressor, an expansion device for expanding the refrigerant that has passed through the condenser, and the refrigerant that has passed through the expansion device evaporates. An evaporator is included.

The air conditioner includes an outdoor unit installed in an outdoor space and an indoor unit installed in an indoor space. The exterior of the indoor unit is formed by a panel, and the panel includes a suction port through which air in the indoor space is sucked in and a discharge port through which the conditioned air is discharged into the indoor space.

When the outlet and the inlet are disposed adjacent to each other, a whirlwind phenomenon may occur in which air discharged through the outlet is directly sucked into the air conditioner through the inlet without circulating in the indoor space.

In particular, in the case of a ceiling type air conditioner installed hanging from the ceiling of a building, the air conditioner is disposed above the ceiling surface, and one surface of the air conditioner is exposed to the indoor space.

And, it is necessary to arrange both the discharge port and the suction port on the exposed surface. In this case, the discharge port and the suction port may be disposed adjacent to each other. Therefore, the whirlwind phenomenon may occur frequently.

When the whirlwind phenomenon occurs, the air conditioned by the air conditioner is not circulated in the indoor space, reducing cooling and heating effects and reducing energy efficiency.

In addition, the air conditioner may malfunction by incorrectly determining the state of the indoor space. For example, an error may occur between the actual temperature of the indoor space and the measured temperature, and a malfunction may occur according to the error.

Prior art for preventing whirlwind includes the following.

Application number (application date): 20-2004-0024579 (2004.08.27)

Title of invention: Ceiling-mounted indoor air conditioner for heating increase

According to the prior literature, the air outlet is provided on a side surface of the ceiling type air conditioner, and the inlet is provided on a lower surface, and the outlet and the inlet are disposed on different surfaces to prevent a draft phenomenon.

However, in this configuration, since the side surface on which the outlet is disposed must be installed below the ceiling surface, it is difficult to install the air conditioner, and aesthetics may be impaired due to the side surface protruding from the ceiling surface.

In addition, when the distance between the discharge port installed on the side and the suction port installed on the lower surface is close, the air discharged from the discharge port still has the problem of circulating air directly sucked into the suction port.

Therefore, there is a need for a structure of a louver device capable of preventing drafts without deteriorating the appearance of the air conditioner.

The present invention has been proposed to solve this problem, and an object of the present invention is to provide an air conditioner capable of preventing whirlwind.

Another object of the present invention is to provide an air conditioner including a louver capable of guiding air in a desired discharge direction.

Another object of the present invention is to provide an air conditioner that can be accommodated in one side of an outlet when the air conditioner is not in operation while a guide surface capable of guiding air is enlarged during operation of the air conditioner.

A louver according to an aspect of the present invention forms an inner space, and an outer louver provided to be movable; It includes an inner louver disposed to be drawn out from an inner space of the outer louver and a louver motor providing a driving force between the inner louver and the outer louver.

In addition, according to the operation of the louver motor, the outer louver rotates to change the air discharge angle, and the inner louver is drawn out from the outer louver, so that the length of the inner louver protruding from the outer louver is varied.

In addition, the operation mode of the louver motor is a first operation mode in which the outer louver is rotated in one direction and the inner louver is drawn into the inner space, and the outer louver is rotated in the other direction, and the inner louver rotates in the inner space. It may include a second operating mode that is withdrawn from space.

In addition, the external louver, the louver body; A first through part formed on one side of the louver body; and a first transmission unit for moving the inner louver, wherein the first transmission unit includes a first gear rotating around a rotational axis of the outer louver; And a second gear that interlocks with the first gear and transmits power to the inner louver through the first through-hole, and the inner louver includes a first rack that interlocks with the second gear, , When the louver motor is driven, the first rack is moved according to the rotation of the first gear and the second gear.

In addition, the external louver is disposed to be spaced apart from the first through portion, the second through portion formed in the louver body; And it is provided on one side of the second through-portion, further comprising a second transmission portion for rotating the outer louver, wherein the inner louver further includes a second rack disposed spaced apart from the first rack, wherein the second transmission a third gear passing through the second through-portion and interlocking with the second rack; A fourth gear disposed on an extension of the rotation axis of the external louver and fixed to one side of the discharge port; It includes a fifth gear disposed to engage with the third gear and the fourth gear, the third gear is rotated by the movement of the inner louver, and the fifth gear is fixed by the rotational force of the third gear. The outer circumferential surface of the fourth gear is moved.

In addition, the second transmission unit further includes a second bracket coupled to the third gear, the fourth gear, and the fifth gear, and in the course of moving the outer circumferential surface of the fifth gear, the fourth gear 2 The bracket rotates based on the axis of rotation of the external louver.

In addition, it protrudes from one side of the outer louver and may include a fixing part rotatably coupled to one side of the discharge port.

In the present invention, since the guide surface for guiding air is enlarged, air can be discharged in a desired direction.

In addition, the protruding length of the inner louver may vary according to the discharge angle at which air is discharged, that is, the position of the outer louver.

In detail, when the outer louver is positioned such that the discharge angle is maximized, the inner louver is driven to be drawn out from the outer louver. In this case, the length of the inner louver protruding from the discharge hole, that is, the guide area of the inner louver that guides the air discharge increases, so that the air can move away from the air conditioner along the louver. As a result, it is possible to prevent air discharged from the discharge port from being blown into the suction port.

On the other hand, when the air conditioner is turned off, the discharge angle is minimized, and since the louver can be accommodated in the discharge port, there is an advantage of not impairing aesthetics.

In addition, since the rotation operation of the louver and the withdrawal operation of the louver can be performed together by one louver motor, the configuration is simplified and the production cost is reduced compared to implementing the two operations with two motors.

1 is a perspective view of an air conditioner according to an embodiment of the present invention;
2 is a cross-sectional view of an air conditioner according to an embodiment of the present invention.
Figure 3 is a cross-sectional view showing a mounting structure of a louver in an air conditioner according to an embodiment of the present invention.
4 is a perspective view of a louver of an air conditioner according to an embodiment of the present invention;
5 is an exploded perspective view of a louver of an air conditioner according to an embodiment of the present invention;
Fig. 6 is a cross-sectional view taken along line A-A' in Fig. 4;
Fig. 7 is a sectional view taken along line BB' of Fig. 4;
8 and 9 are perspective views showing a first operating mode of a louver motor of an air conditioner according to an embodiment of the present invention.
10 and 11 are perspective views showing a second operation mode of a louver motor of an air conditioner according to an embodiment of the present invention.
12 and 13 are diagrams showing the temperature of the indoor space according to the external louver of the air conditioner according to the embodiment of the present invention.

Figure 1 is a perspective view of an air conditioner according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the air conditioner according to an embodiment of the present invention, Figure 3 is a louver in the air conditioner according to an embodiment of the present invention A cross-sectional view showing the mounting structure.

1 to 3 , an air conditioner according to an embodiment of the present invention includes an outdoor unit (not shown) that exchanges heat with outdoor air and an indoor unit 10 that conditions indoor air.

The indoor unit 10 includes a top plate 15 forming a top surface of the indoor unit and a side plate 16 forming a side surface of the indoor unit. The top plate 15 and the side plate 16 may be combined in a rectangular box shape with open bottom surfaces. The indoor unit 10 may include an inner space composed of a top plate 15 and a side plate 16 .

In addition, the indoor unit 10 may further include a lower panel 20 that closes the opened lower surface and forms a lower exterior of the indoor unit.

As shown in FIG. 2 , the indoor unit 10 may be installed in the ceiling through an opening provided in the ceiling. At this time, the top plate 15 and the side plate 16 are positioned on the upper side of the ceiling surface u. , and the lower panel 20 may be disposed below the ceiling surface u.

The lower panel 20 includes a suction port 24 through which indoor air flows into the indoor unit 10 and a discharge port 28 through which air is discharged from the indoor unit 10 into the indoor space.

In the inner space composed of the top plate 15 and the side plate 16, a blowing fan 30 disposed on one side of the inner space to circulate air, a motor 31 generating driving force to rotate the blowing fan, It includes an indoor heat exchanger 40 that exchanges heat with the air discharged from the blowing fan to condition the indoor air, and a guide member 35 that guides the air sucked through the intake port 24 to the blowing fan 30.

For example, the blowing fan may be disposed in the center of the inner space, the motor 31 may be disposed above the blowing fan and coupled to the top plate 15, and the indoor heat exchanger 40 May be disposed outside the radial direction of the blowing fan. Also, the guide member 35 may be disposed below the blowing fan.

As another example, the indoor unit 10 is formed in a substantially rectangular box shape, the blowing fan is disposed in the center of the inner space, and the indoor heat exchanger 40 has a shape approximately corresponding to the shape of the indoor unit 10. It is formed in a rectangular annular shape and disposed outside the blowing fan 30, and the blowing fan 30 may be formed of a centrifugal fan that sucks in air in an axial direction and discharges it in a radial direction.

When the air conditioner is operated, the blowing fan 30 rotates to suck in air from the lower side of the lower panel 20 through the inlet 24 and flow it to the side. The air flowing laterally passes through the indoor heat exchanger 40 and moves downward along the side plate 16 . Then, the air moved downward is discharged into the room through the discharge port 28 provided in the lower panel 20 .

The inlet 24 and the outlet 28 may be formed through the lower panel 20 . In addition, the suction hole 24 and the discharge hole 28 may be arranged to be spaced apart from each other by a predetermined distance.

For example, the inlet 24 may be formed on one side of the lower panel 20 and the outlet 28 may be formed on the other side of the lower panel 20 .

As another example, the inlet 24 may be formed in the center of the lower panel 20 and the outlet 28 may be formed in a corner of the lower panel 20 .

In addition, a plurality of discharge ports 28 may be formed to be spaced apart from each other, and the plurality of discharge ports 28 may be spaced apart from each other on the edge portion of the lower panel 20 .

For example, when the lower panel 20 has a rectangular plate shape, discharge ports 28 may be disposed at each corner of the lower panel 20 .

The lower panel 20 is provided on one side of the inlet 24 and is fastened to a filter (not shown) for removing foreign substances from the air flowing into the inlet 24 and the inlet 24 to clean the filter. It may include a suction grill 25 to support.

For example, the suction grill 25 may be located below the suction port 24, and the filter may be located between the suction port 24 and the suction grill 25.

In addition, the lower panel 20 may include a louver 29 for guiding air so as to adjust a wind direction of the air discharged from the outlet 28 .

In addition, the lower panel 20 may include a louver motor (not shown) for varying the rotation angle of the louver 29 or the area of the guide surface.

Here, the guide surface means one side surface of a louver that guides the discharged air, and may include, for example, an upper surface of an outer louver and an upper surface of an inner louver, which will be described later. At this time, the upper surface of the inner louver means a portion through which the air drawn out and discharged from the outer louver flows. The area of the guide surface may be varied by the length of the inner louver protruding from the outer louver.

The louver 29 may be disposed at the outlet 28 , and the louver motor may be disposed at one side of the louver 29 .

The louver 29 may be rotatably coupled to the lower panel 20, and the air discharge direction is determined according to the rotation angle. The direction in which the air is discharged is determined according to the angle between the imaginary extension surface connecting both sides of the discharge port 28 and the louver 29, that is, the discharge angle.

The louver motor may change the rotation angle of the louver 29 to change the discharge angle of the air discharged from the discharge port 28 .

A plurality of louvers 29 may be provided corresponding to the number of the discharge ports 28 , and the plurality of louvers 29 may be disposed at each of the plurality of discharge ports 28 . In addition, the plurality of louvers 29 can be independently controlled.

The louver 29 may close at least a portion of the outlet 28 when the air conditioner is not operated. A detailed structure of the louver 29 will be described later.

However, in this embodiment, it is expressed that the discharge port and the suction port are provided on the lower panel of the indoor unit, but it is not limited thereto, and the discharge port and suction port may be provided on the upper panel or the side panel of the indoor unit.

In addition, in the present embodiment, the louver provided in the ceiling air conditioner is expressed, but is not limited thereto, and may be applied to a stand-type air conditioner and a wall-mounted air conditioner.

4 is a perspective view of a louver of an air conditioner according to an embodiment of the present invention, FIG. 5 is an exploded perspective view of a louver of an air conditioner according to an embodiment of the present invention, and FIG. Fig. 7 is a cross-sectional view along the line BB' of Fig. 4;

4 to 7, the louver 29 includes an outer louver 100 and an inner louver 200 that can be drawn in and out of the outer louver 100.

The external louver 100 includes a louver body 101 having a predetermined thickness, an opening 105 provided on one side of the louver body, and an internal space 106 extending from the opening and formed inside the louver body. includes

The inner louver 200 is configured in a thin plate shape and can be drawn in and out of the inner space 106 through the opening 105 .

For example, the opening 105 is formed at one corner of the outer louver 100, and one corner of the inner louver 200 is inserted into the opening 105, so that the inner louver 200 is It can be accommodated in the inner space (106).

When the inner louver 200 is pulled out a certain distance from the outer louver 100, the louver 29 expands, so the area capable of guiding air is reduced. Accordingly, it is possible to prevent the air discharged through the discharge port 29 from being dispersed and flowing into the suction port.

The external louver 100 includes penetrating portions 129 and 139 penetrating one surface of the louver body 101 and exposing a part of the inner space 106 . For example, one surface may include a top surface.

At this time, the upper surface means a direction toward the upper plate 15, and the lower surface means a direction toward the inner space.

In the through portions 129 and 139, one side of an auxiliary gear 124 and 134 to be described later passes through one surface of the louver body 101 and interlocks with the racks 220 and 230 of the inner louver 200. . Details are described below.

The external louver 100 includes a fixing part 110 protruding from one surface of the louver body 101 and supporting the external louver 100 and a fixing protrusion 113 protruding from the fixing part to one side. .

For example, the fixing part 110 may protrude upward from the upper surface of the louver body 101, and the fixing protrusion 113 may protrude toward one side from the fixing part. Here, one side may mean the longitudinal direction of the external louver 100.

A plurality of the fixing parts 110 may be provided, and may be provided to be spaced apart from each other in one direction. For example, the fixing part 110 may be provided to be spaced apart from each other in the longitudinal direction of the external louver 100 .

At this time, the plurality of fixing protrusions 113 each protruding from the plurality of fixing parts 110 may be disposed on one axis extending in the longitudinal direction of the external louver 100, and the external louver 100 may be rotated at a predetermined angle with respect to the axis.

Therefore, the axis can be understood as the axis of rotation 115 of the louver 29. That is, the plurality of fixing protrusions 113 may be disposed on the rotation shaft 115, and the louver 29 may rotate at a predetermined angle around the rotation shaft 115.

For example, when the louver 29 is rotated at a predetermined angle in one direction with respect to the rotation shaft 115, the louver 29 may be moved to open the entire discharge port 28, and the louver 29 ) is rotated at a certain angle in another direction with respect to the rotation shaft 115, the louver 29 may be moved to close at least a portion of the discharge port 28.

A detailed description of the operation of the louver 29 will be described later.

The outer louver 100 is formed by protruding from one surface of the louver body 101, and the inner louver 200 is drawn in and out, and the transmission part 120, 130 for changing the angle of the outer louver 100 includes For example, the transmission parts 120 and 130 may protrude upward from the upper surface of the louver body 101 .

The delivery unit 120, 130 may be provided in plurality, and may be spaced apart from each other in the longitudinal direction of the external louver 100.

For example, the transmission parts 120 and 130 are provided on one side of the louver body 101, and the first transmission part 120 for withdrawing and withdrawing the inner louver 200 and the other side of the louver body 101 It is provided in, and includes a second transmission part 130 for rotating the external louver 100.

The fixing part 110 may be disposed between the first transmission part 120 and the second transmission part 130, but is not limited thereto, and the first transmission part between the plurality of fixing parts 110 120 and the second delivery unit 130 may be disposed.

In addition, the first transmission part 120 and the second transmission part 130 may be disposed adjacent to both ends of the louver body 101 .

The first transmission part 120 includes a first bracket 121 extending to one side from the louver body 101 and a plurality of gears 123 and 124 fastened to the first bracket 121.

For example, the first bracket 121 may extend upward from the upper surface of the louver body 101, and the plurality of gears 123 and 124 may be coupled to one side of the first bracket 121. there is. At this time, the one side surface may be understood as a surface facing the outside of both ends of the louver body 101.

The plurality of gears 123 and 124 include a main gear 123 receiving driving force from the louver motor and a first auxiliary gear 124 engaged with the main gear to withdraw and withdraw the inner louver 200. .

The first bracket 121 includes a main gear fastening part 126 to which the main gear 123 is rotatably fastened and a first auxiliary gear fastening part 127 to which the first auxiliary gear 124 is rotatably fastened. can include

The main gear fastening part 126 may be formed on the rotating shaft 115 . Therefore, both the fixing protrusion 113 and the main gear fastening part 126 may be positioned on an extension line of the rotation shaft 115 .

In this configuration, since the position of the main gear 123 does not change no matter which direction the louver 29 is rotated, the driving force is transferred from the louver motor to the main gear 123 regardless of whether the louver 29 rotates. can deliver.

The first auxiliary gear fastening part 127 is disposed on one side of the main gear fastening part 126 . For example, the first auxiliary gear fastening part 127 may be disposed below the main gear fastening part 126 .

The lower part of the first auxiliary gear 124 may pass through the first through part 129 and come into contact with one surface of the inner louver 200 . That is, the first auxiliary gear fastening part 127 may be arranged so that the first auxiliary gear 124 is simultaneously engaged with the main gear 123 and one surface of the inner louver.

The first auxiliary gear 127 may rotate to move the inner louver 200 to one side. Details are described below.

The second transmission part 130 includes a second bracket 131 extending from the louver body 101 to one side, and a plurality of gears 133, 134, and 135 fastened to the second bracket 131. do.

For example, the second bracket 131 may extend upward from the upper surface of the louver body 101, and the plurality of gears 133, 134, and 135 are fastened to one side of the second bracket 131. It can be. At this time, the one side surface may be understood as a surface facing the outside of both ends of the louver body 101.

The plurality of gears 133, 134, and 135 are engaged with the second auxiliary gear 133 rotated by the movement of the inner louver 200 and the second auxiliary gear 133 to form the outer louver 100. A third auxiliary gear 134 for rotating and a fixed gear 135 fastened to one side of the outlet 28 by being fastened to the third auxiliary gear are included.

The second bracket 131 includes a second auxiliary gear fastening part 136 to which the second auxiliary gear 133 is fastened, a third auxiliary gear fastening part 137 to which the third auxiliary gear 134 is fastened, and the fixed gear A fixed gear fastening part 138 to which 135 is fastened may be included.

The lower part of the second auxiliary gear 133 may pass through the second through part 139 and come into contact with one surface of the inner louver 200 . That is, the second auxiliary gear 133 may be engaged with a second rack 230 to be described later.

When the inner louver 200 moves to one side, the second auxiliary gear engaged with the second rack 230 can rotate to one side. Details are described below.

The third auxiliary gear fastening part 137 may be provided on one side of the second auxiliary gear fastening part 136, and the third auxiliary gear 134 is rotatably fastened.

The third auxiliary gear fastening part 137 is arranged so that the fixed gear 135 and the third auxiliary gear 134 can be engaged with each other.

The fixed gear fastening part 138 may be formed on an extension line of the rotating shaft 115 . Accordingly, the fixing protrusion 113 , the main gear fastening part 126 , and the fixed gear fastening part 138 may all be located on the rotating shaft 115 .

The fixed gear 135 is fixed to the lower panel 20 . For example, the fixed gear 135 may be fixed to one side of the discharge port 28 . The fixed gear 135 is fixed to the lower panel 20 in a non-moving state regardless of whether the louver motor is driven.

The third auxiliary gear 134 may move along the outer circumferential surface of the fixed gear 135 , that is, the gear teeth formed on the fixed gear 135 .

In another aspect, the fixed gear 135 may be understood as a sun gear that does not rotate and is fixed, and the third auxiliary gear 134 is a planet that orbits and rotates around the sun gear. It can be understood as a gear (planetary pinion).

At this time, the second bracket 131 to which the fixed gear 135 and the third auxiliary gear 124 are fixed can be understood as a carrier connecting the sun gear and the planetary gear to mesh with each other.

In this configuration, the third auxiliary gear 134 may move the outer circumferential surface of the fixed gear 135 to rotate the louver 29 . That is, the louver 29 may be rotated based on the rotating shaft 115 to which the fixed gear 135 is fastened.

The third auxiliary gear 134 moves the outer circumferential surface of the fixed gear 135 through the rotational force of the second auxiliary gear 133, and the second bracket 131 to which the third auxiliary gear 134 is fastened It rotates with respect to the rotating shaft 115.

The inner louver 200 is provided on one surface and includes racks 220 and 230 interlocked with the plurality of gears. For example, the one surface includes a top surface.

The racks 220 and 230 may be provided in plurality and spaced apart from each other in the longitudinal direction of the inner louver. In addition, the racks 220 and 230 may be arranged to correspond to the through portions 129 and 139 .

The racks 220 and 230 are interlocked with the first auxiliary gear 124 or the second auxiliary gear 133 . For example, the racks 220 and 230 interlock with the first auxiliary gear 127 and interlock with the first rack 220 and the second auxiliary gear 128 for withdrawing and withdrawing the inner louver 200. Thus, it includes a second rack 230 for rotating the external louver 100 at a predetermined angle.

Hereinafter, a process in which the louver 29 is operated by a louver motor will be described.

8 and 9 are perspective views showing a first operating mode of a louver motor of an air conditioner according to an embodiment of the present invention.

Referring to FIGS. 8 and 9 , the louver motor may be driven in a first operation mode. In the first operation mode, while the inner louver 200 is drawn out of the outer louver 100, the outer louver 100 rotates in one direction.

When the driving of the air conditioner starts or when the discharge angle of the louver 29 is increased, the louver motor is rotated in one direction at a predetermined angle.

The main gear 123 fastened to the louver motor rotates in the other direction, and the first auxiliary gear 124 rotates in one direction. At this time, based on FIGS. 8 to 11, when viewed from the left, one direction may mean a clockwise direction, and the other direction may mean a counterclockwise direction.

At this time, the lower part of the first auxiliary gear 124 moves the first rack 220 to one side through the first through part 129 . At this time, one side is a direction from the inner space 106 toward the opening 105 . The inner louver 200 is moved to one side by the first auxiliary gear 124, and the inner louver 200 is drawn out of the outer louver 100 through the opening 105.

At this time, the louver 29 is extended by the distance that the inner louver 200 is drawn out to the outside of the outer louver 100. Accordingly, the area of the guide surface of the louver 29 can be expanded.

When the inner louver 200 moves to one side, the second auxiliary gear 133 fastened to the second rack 230 rotates in one direction, and the third auxiliary gear fastened to the second auxiliary gear ( 134) rotates in the other direction.

Since the fixed gear 135 is fixed to the lower panel 20, the third auxiliary gear 134 rotates in the other direction while rotating in the other direction along the outer circumferential surface of the fixed gear 135.

That is, the third auxiliary gear 134 may rotate around the third auxiliary gear fastening part 137 and simultaneously revolve around the rotating shaft 115 .

As the third auxiliary gear 134 revolves around the rotating shaft 115, the second transmission part 130 to which the third auxiliary gear 134 is fastened rotates around the rotating shaft 115 do.

Accordingly, the external louver 100 rotates around the rotation shaft 115 . At this time, the external louver 100 rotates in the other direction.

According to this configuration, by using one louver motor, the inner louver 200 is drawn out from the outer louver 100 and at the same time the outer louver 100 is rotated to open the outlet 28. can Therefore, the width of the louver 29 can be enlarged at the same time as the louver driving moner z discharge port 28 is opened.

10 and 11 are perspective views showing a second operating mode of a louver motor of an air conditioner according to an embodiment of the present invention.

Referring to FIGS. 10 and 11 , the louver motor may be driven in a second operation mode. In the second operation mode, while the inner louver 200 is drawn into the outer louver 100, the outer louver 200 rotates in the other direction.

When the driving of the air conditioner is stopped or the discharge angle is reduced, the louver motor is rotated at a predetermined angle in another direction.

The main gear 123 fastened to the louver motor rotates in one direction, and the first auxiliary gear 124 rotates in the other direction.

The lower part of the first auxiliary gear 124 moves the first rack 220 to the other side through the first through part 129. At this time, the other side opens the opening 105 from the inner space 106. is the opposite direction of the The inner louver 200 is moved to the other side by the first auxiliary gear 124, and the inner louver 100 is introduced into the inner space 106 through the opening 105.

At this time, the louver 29 is reduced by the distance that the inner louver 200 is drawn into the inner space 106 of the outer louver 100. Accordingly, the area of the guide surface of the louver 29 can be reduced.

When the inner louver 200 moves to the other side, the second auxiliary gear 133 fastened to the second rack 230 rotates in the other direction, and the second auxiliary gear 133 fastened to the second auxiliary gear 133 rotates. 3 auxiliary gear 134 rotates in one direction.

Since the fixed gear 135 is fixed to the lower panel 20, when the third auxiliary gear 134 rotates in one direction, it revolves in one direction along the outer circumferential surface of the fixed gear 135.

As the third auxiliary gear 134 revolves around the rotating shaft 115, the second transmission part 130 to which the third auxiliary gear 134 is fastened rotates around the rotating shaft 115 do.

Accordingly, the external louver 100 rotates around the rotation shaft 115 . At this time, the external louver 100 rotates in one direction.

According to this configuration, the area of the guide surface can be reduced when the air discharge angle is small and there is no concern about whirlwind. Also, when the air conditioner is stopped, the louver 29 may be accommodated in the outlet.

12 and 13 are diagrams showing temperature distribution in an indoor space according to whether an inner louver of an air conditioner according to an embodiment of the present invention is withdrawn.

12 and 13 show the temperature distribution of the indoor space as an isotherm when the louver 29 is set to the maximum discharge angle and guides the discharged air to the indoor space. 12 shows a case where the inner louver 200 is not provided, and FIG. 13 shows a case where the inner louver 200 is drawn out from the outer louver 100.

An outlet through which cooled air is discharged is shown in the upper right corner of the drawing, and the air discharged into the indoor space through the outlet flows downward and then flows leftward along the floor. At this time, a suction port is provided on the right side of the discharge port.

12, it can be seen that the isotherm representing the room temperature of 14 degrees is bent to the right. This means that a whirlwind is generated through the intake port disposed on the right side of the discharge port. On the other hand, in FIG. 13 , it can be seen that the isotherm representing the indoor temperature of 14 degrees does not bend to one side and is directed toward the indoor space. This means that whirlwinds do not occur.

In addition, FIG. 12 shows that the temperature of the central part of the indoor space is 26 degrees, but FIG. 13 shows that the temperature of the central part of the indoor space is 25 degrees, so that the cooling performance can be improved by preventing the draft phenomenon.

According to the louver of the air conditioner according to an embodiment of the present invention, since the area of the guide surface can be expanded, drafts can be prevented, and the size of the louver can be changed according to the opening angle of the louver, thereby affecting the aesthetics. It can be installed at the discharge port without reaching the outlet, and since the opening angle of the louver and the area of the guide surface can be adjusted with one motor, the production cost can be reduced.

In this embodiment, the main gear 123, the first auxiliary gear 124, the second auxiliary gear 133, the third auxiliary gear 134 and the fixed gear 135 are expressed, but the main gear 123 '1st gear', 1st auxiliary gear 124 to '2nd gear', 2nd auxiliary gear 133 to '3rd gear', 3rd auxiliary gear 134 to '5th gear' As a result, it is also possible to understand the fixed gear 135 as a 'fourth gear'.

Claims (17)

an indoor unit disposed in an indoor space;
an outlet provided on one side of the indoor unit to discharge conditioned air into the indoor space;
A louver installed in the outlet and guiding the flow of air discharged from the outlet; and
Including a louver motor providing a driving force to the louver,
The louver,
An external louver that forms an internal space and is movably provided; and
Including an inner louver disposed to be drawn out from the inner space of the outer louver,
The outer louver,
louver body;
A first gear rotating around the axis of rotation of the outer louver; and
In conjunction with the first gear, a first transmission unit including a second gear for transmitting power to the inner louver; includes,
The first transmission unit comprising: a first gear rotating around the axis of rotation of the outer louver; and
A second gear that interlocks with the first gear and transmits power to the inner louver,
According to the operation of the louver motor,
The outer louver rotates to change the discharge angle of the air,
The air conditioner according to claim 1 , wherein the inner louver is drawn out from the outer louver and the length of the inner louver protruding from the outer louver is variable.
delete delete According to claim 1,
The operation mode of the louver motor includes a first operation mode,
The air conditioner according to claim 1 , wherein when the louver motor is driven in the first operation mode, the external louver is rotated in one direction, and the internal louver is drawn into the internal space.
According to claim 1,
The operation mode of the louver motor includes a second operation mode,
When the louver motor is driven in the second operation mode, the external louver is rotated in another direction, and the internal louver is drawn out from the internal space.
delete According to claim 1,
The second gear transmits power to the inner louver through the first through-portion of the louver body.
According to claim 7,
The inner louver includes a first rack interlocking with the second gear,
When the louver motor is driven, the air conditioner according to the rotation of the first gear and the second gear, characterized in that the first rack is moved.
According to claim 7,
The first delivery unit
Further comprising a first bracket provided on one side of the first through-portion and coupled to the first gear and the second gear,
The air conditioner of claim 1, wherein the first gear and the second gear are rotatably coupled to the first bracket.
According to claim 8,
The outer louver is
a second through part disposed to be spaced apart from the first through part and formed by penetrating one surface of the louver body; and
The air conditioner further includes a second transmission part provided at one side of the second through part and rotating the external louver.
According to claim 10,
The inner louver further includes a second rack disposed spaced apart from the first rack,
The second delivery unit
and a third gear that passes through the second penetrating part and interlocks with the second rack.
According to claim 11,
The second delivery unit,
A fourth gear disposed on an extension of the rotation axis of the external louver and fixed to one side of the discharge port;
The air conditioner further comprises a fifth gear disposed to engage with the third gear and the fourth gear.
According to claim 12,
The third gear is rotated by the movement of the inner louver,
The air conditioner of claim 1 , wherein the fifth gear moves an outer circumferential surface of the fixed fourth gear with rotational force of the third gear.
According to claim 13,
The second delivery unit,
A second bracket provided on one side of the second through-hole and coupled to the third gear, fourth gear, and fifth gear is further included,
The air conditioner of claim 1, wherein the third gear, the fourth gear, and the fifth gear are rotatably coupled to the second bracket.
15. The method of claim 14,
In the course of the fourth gear moving the outer circumferential surface of the fifth gear,
The air conditioner, characterized in that the second bracket rotates based on the rotation axis of the external louver.
delete According to claim 1,
The air conditioner according to claim 1 , wherein the indoor unit is installed on a ceiling surface of the indoor space.

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