KR102487340B1 - louver for airconditioner - Google Patents

Abstract

A louver device of an air conditioner according to one aspect of the present invention includes a window including a first frame and a second frame disposed to face each other; A first louver and a second louver provided between the first frame and the second frame and rotatably provided; An electric motor driving the first louver and the second louver; A piston rod that moves linearly by the rotational force of the electric motor; A first transmission unit for transmitting the linear motion of the piston rod to the first louver; And a second transmission part connecting the first louver and the second louver, and the first transmission part includes a link that rotates in a set direction according to the linear motion of the piston rod.
In the present invention, since the user does not need to directly adjust the louver, user convenience is improved, and since the louver is controlled using an electric cylinder, the detailed angle change of the louver is possible, and even when a plurality of louvers are included, one cylinder It is possible to change the angle of multiple louvers.
In addition, since the present invention can control the opening angle of the louver according to the operating conditions of the outdoor unit, the louver is opened at an optimal opening angle, guaranteeing the performance of the air conditioner and minimizing the penetration of foreign substances, Since the condition of the outdoor unit room is monitored to determine whether to close the louver, only the optimum opening time can be opened.

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 indoor unit disposed in an indoor space, an outdoor unit disposed in an outdoor space, and a pipe connecting the outdoor unit and the indoor unit. As the length of the pipe increases, the loss generated by the pipe increases, and the efficiency of the air conditioner decreases.

In order to reduce the length of the pipe, the outdoor unit may not be installed in an outdoor space, but installed in an indoor space (hereinafter referred to as an outdoor unit room) different from a space in which the indoor unit is provided.

In particular, in recent years, in accordance with changes in residential space and construction-related regulations, cases where the outdoor unit is installed in an indoor space such as a balcony instead of installing the outdoor unit on the outer wall of a building and used as the outdoor unit room are increasing. .

When the outdoor unit is installed in the outdoor unit room, the user opens a louver communicating the outdoor space and the outdoor unit unit to allow outdoor air to flow into the indoor unit unit when operating the air conditioner, and ends operation of the air conditioner. At this time, the louver is closed to prevent foreign matter such as dust or insects from entering the outdoor fan chamber.

Prior literature includes the following.

Application number (application date): 10-2006-0040872 (2006.05.08)

Title of invention: Ventilation louver for outdoor unit room with improved thermal bridge blocking and insulation performance.

In the case of the prior art document, the user has to open/close the louver each time the air conditioner is operated/finished, which is inconvenient.

In addition, since the louver is opened at an arbitrary angle according to the user's experience, or is operated completely open or completely closed, the louver is opened more than necessary to properly prevent the penetration of foreign substances, and the louver is less than necessary. There was a problem of being open and degrading the performance of the air conditioner.

In addition, since the louver has a degree of opening in a plurality of steps from opening to closing, and the louver can be opened only at a predetermined specific angle, it is impossible to change the opening angle in detail of the louver.

Accordingly, a louver device that is automatically controlled based on the operating condition of the air conditioner or the condition of the outdoor unit room has been demanded.

The present invention has been proposed to solve this problem, and an object of the present invention is to provide a louver device that is automatically opened / closed depending on whether or not driving.

Another object of the present invention is to provide a louver device in which an opening angle is automatically controlled according to an operating condition of an outdoor unit.

Another object of the present invention is to provide a louver device whose opening angle is automatically controlled according to the state of the outdoor unit room.

A louver device of an air conditioner according to one aspect of the present invention includes a window including a first frame and a second frame disposed to face each other; A first louver and a second louver provided between the first frame and the second frame and rotatably provided; An electric motor driving the first louver and the second louver; A piston rod that moves linearly by the rotational force of the electric motor; A first transmission unit for transmitting the linear motion of the piston rod to the first louver; And a second transmission part connecting the first louver and the second louver, and the first transmission part includes a link that rotates in a set direction according to the linear motion of the piston rod.

In addition, the cutout formed in the link; and a bracket having a fixing pin inserted into the incision, wherein when the piston rod moves linearly, the fixing pin is moved in the incision.

In addition, the second transfer unit main gear rotating in conjunction with the first louver; a driven gear interlocking with the second louver; and a rack coupled to the main gear and the driven gear and transmitting a rotational force of the main gear to the driven gear, wherein the main gear and the driven gear have the same gear ratio.

In addition, the first transmission unit body forming a rotational center of the link; and a drive shaft extending from the delivery unit body toward the first frame.

In addition, the second frame is disposed below the rack guide and the rack guide for supporting the rack, and further includes a stopper for preventing the rack from leaving, and the rack is supported by the rack guide. , move up and down.

In addition, a control unit electrically connected to the driving unit is included, and the control unit controls the withdrawal amount of the piston rod according to the flow rate of air discharged from the discharge port.

The outdoor unit may also include a fan motor for flowing air inside the outdoor unit, and the controller determines the flow rate of the discharged air from the number of revolutions of the fan motor.

In addition, a sensor for measuring the state of the air is included, and the control unit controls the withdrawal amount of the piston rod based on a value detected by the sensor.

The sensor may include a temperature sensor that detects a temperature inside the outdoor unit, and the control unit, when the temperature inside the outdoor unit is higher than a first reference temperature, reduces a withdrawal amount of the piston rod, When the temperature is lower than the second reference temperature higher than the first reference temperature, the amount of withdrawal of the piston rod is increased.

In addition, the sensor includes a humidity sensor for detecting humidity, and the control unit increases the withdrawal amount of the piston rod when the humidity is higher than the first reference humidity, and the humidity is higher than the first reference temperature. If it is lower than 2 standard humidity, the amount of withdrawal of the piston rod is reduced.

In the present invention, since the user does not need to directly adjust the louver, user convenience is improved.

In addition, since the louver is controlled using an electric cylinder, it is possible to change the angle of the louver in detail, and even when a plurality of louvers are included, it is possible to change the angle of a plurality of louvers with one cylinder.

In addition, since the present invention can control the opening angle of the louver according to the operating conditions of the outdoor unit, the louver is opened at an optimal opening angle, thereby guaranteeing the performance of the air conditioner and minimizing the penetration of foreign substances.

In addition, since the present invention monitors the condition of the outdoor unit room to determine whether to close the louver, it is possible to open only the required opening time.

1 is a view showing the appearance of a louver device according to an embodiment of the present invention.
2 and 3 are exploded perspective views showing the internal configuration of the louver device according to an embodiment of the present invention.
Figure 4 is a view showing a driving unit of a louver device according to an embodiment of the present invention.
5 is a perspective view showing a fully opened louver device according to an embodiment of the present invention;
Figure 6 is a perspective view showing a partially opened louver device according to an embodiment of the present invention;
7 is a perspective view showing a completely closed state of a louver device according to an embodiment of the present invention;
Figure 8 is a cross-sectional view showing a fully opened louver device according to an embodiment of the present invention.
Figure 9 is a cross-sectional view showing a partially opened louver device according to an embodiment of the present invention.
Figure 10 is a cross-sectional view showing a fully closed louver device according to an embodiment of the present invention.

1 is a view showing the appearance of a louver device according to an embodiment of the present invention, FIGS. 2 and 3 are exploded perspective views showing the internal configuration of the louver device according to an embodiment of the present invention, and FIG. 4 is It is a view showing the drive unit of the louver device according to an embodiment of the present invention.

1 to 4, the louver device according to an embodiment of the present invention includes a frame 10 disposed to face the outlet of the outdoor unit and a plurality of louvers 21, 22, and 23 disposed in the inner space of the frame. include

The frame 10 may have the shape of a picture frame with open front and rear surfaces. Air discharged from the outlet of the outdoor unit may flow into an outdoor space through the open front and rear surfaces.

The frame 10 is provided to be spaced apart from the upper frame and the upper frame vertically to form the upper surface appearance of the frame, the lower frame forming the lower surface of the frame, the spaced upper frame and the lower frame are connected, , It may include both sides of the frame (11, 12) forming the appearance of both sides of the frame.

The both sides of the frames 11 and 12 may include a right frame 11 and a left frame 12, and each of the both sides of the frames 11 and 12 has outer portions 11a and 12a forming the side appearance of the frame. And it may include an inner portion (11b, 12b) for supporting one side of the louver.

The outer portions 11a and 12a may have a 'c'-shaped cross section such that one surface is opened toward the inner parts 11b and 12b, and the inner parts 11b and 12b are formed of a shape of the outer part 11a and 12a. It is disposed on the open surface, and delivery units 110 and 150 to be described later may be installed.

An inner space is formed between the outer parts 11a and 12a and the inner parts 11b and 12b, and a delivery unit 150 to be described later may be disposed in the inner space.

The frame 10 of this embodiment may be understood as a 'window' communicating the outdoor space with the outdoor unit room in which the outdoor unit is installed. In addition, the upper frame, the lower frame and both side frames constituting the frame 10 can be understood as each frame constituting the 'window'.

In addition, in this embodiment, it is expressed that the transmission unit is configured in both frames 11 and 12, but it is not limited thereto, and the transmission unit may also be configured in the upper frame and the lower frame. In addition, the right frame 11 can be understood as a first frame, and the left frame 12 can be understood as a second frame.

The louvers 21, 22, and 23 are provided in plurality, and may be spaced apart from each other and disposed between the inner part 12b of the left frame 12 and the inner part 11b of the right frame 11. Although the drawing discloses three louvers, it is not limited thereto.

The louvers 21, 22, and 23 include rotation shafts 21a, 22a, and 23a forming the center of rotation of the louver, and louver surface portions 21b, 22b, and 23b extending toward both sides from the rotation shaft. For example, the louver surface portions 21b, 22b, and 23b may extend toward the front and rear directions,

The louvers 21, 22, and 23 may be rotated at a predetermined angle in both directions based on the rotation shafts 21a, 22a, and 23a, and the louver surface portions 21b, 22b, and 23b may be formed in a thin plate shape. In addition, the louver surface portions 21b, 22b, and 23b rotate along the rotation shafts 21a, 22a, and 23a, and may selectively close the frame.

The louvers 21, 22, and 23 may further include projections 21c, 22c, and 23c protruding from both ends of the louver surface portions 21b, 22b, and 23b. The projections 21c, 22c, and 22c are the rotation shafts. It may protrude toward both directions along (21a, 22a, 23a).

The protrusions 21c, 22c, and 22c may be fastened to the grooves 11d and 12d formed by being recessed in the side frames 11 and 12. The grooves 11d and 12d may be formed by being recessed to a predetermined depth from the holes 11c and 12c of the inner parts 11b and 12b toward the outer parts 11a and 11a. The louvers 21, 22, and 23 may be fastened to the holes 11c and 12c or the grooves 11d and 12d.

The louvers 21, 22, and 23 include a first louver 21 and second louvers 22 and 23 disposed to be spaced apart from the first louvers.

For example, the first louvers 21 and the second louvers 22 and 23 may be spaced apart from each other in the vertical direction.

As another example, the first louver 21 may be located on one side of the inner space of the frame, and the second louvers 22 and 23 are spaced apart from the first louver 21, and the inner space of the frame. It may be located on the other side of.

As another example, the first louver 21 may be located in the center of the frame, and the second louver 22, 23 may be disposed on at least one of the upper side or lower side of the first louver 21. there is. One second louver 22 may be spaced apart from the upper side of the first louver 21, and another second louver 22 may be spaced apart from the lower side of the first louver 21.

The second louvers 22 and 23 may be configured in plurality, and the first louvers 21 and the second louvers 22 and 23 may open or close the inner space of the frame.

In this embodiment, the second louver is expressed as one above the first louver and one below the first louver, but the arrangement and number of the second louvers are not limited. That is, the second louver may be configured in plurality on one side of the first louver, and may be configured in plural on both sides of the first louver.

The rotation shafts 21a, 22a, and 23a include a first rotation shaft 21a forming the center of rotation of the first louvers 21 and second rotation shafts 22a and 23a forming the rotation centers of the second louvers 22 and 23 ).

The first rotation shaft 21a and the second rotation shafts 22a and 23a may be spaced apart from each other. For example, they may be arranged to be parallel to each other, and as another example, they may be arranged to be spaced apart from each other in the vertical direction. A detailed description of the rotational operation of the louvers 21, 22 and 23 will be described later.

The driving unit 200 includes an electric motor 210 generating driving force and a piston rod 240 linearly moving by the driving force of the electric motor.

In addition, the drive unit 200 is fastened to a gearbox 220a that transmits the driving force of the electric motor 210, a ball screw 220b that rotates by being fastened to the gearbox, and the ball screw, and the piston rod 240 It includes a ball nut 220c connected to one end of ).

In addition, the driving part 200 is provided on one side of the gear box 220a and includes an outtube 230 in which the ball screw 220b and the ball nut 220c are accommodated.

The piston lobe 240 is disposed on one side and includes a bracket 250 fastened to the first transmission part 110 to be described later.

When the electric motor 210 rotates, the ball screw 220b rotates through the gearbox 220a. At this time, the rotational speed of the electric motor 210 and the rotational speed of the ball screw 220b may vary according to the gear ratio of the gearbox 220a, and the rotational direction of the electric motor 210 and the rotational speed of the ballscrew 220b The direction of rotation may also vary.

The rotation of the ball nut 220c is limited by interference with the inner circumferential surface of the outer tube 230, and does not rotate like the ball screw 220b, but moves in a straight line in the extension direction of the ball screw 220b. do. As the ball nut 220c linearly moves in the extending direction of the ball screw 220b, the piston rod 240 fastened to the ball nut 220c also linearly moves in the extending direction of the ball screw 220b. will do

For example, when the electric motor 210 rotates in one direction, the ball screw 220b also rotates in the same direction, and the ball nut 220c rotates the outlet of the out tube 230 in the gearbox 220a. moving in the direction toward which the piston rod 240 may be drawn out of the outer tube. That is, the withdrawal amount of the piston rod increases.

When the piston rod 240 moves toward the outside of the outer tube 230, the other end of the piston rod 240 may press the first driving unit 110. In more detail, the bracket 250 provided at the other end of the piston rod 240 may push the link 112 of the first drive unit.

Conversely, when the electric motor 210 rotates in another direction, the ball screw 220b also rotates in the same other direction, and the ball nut 220c moves from the outer tube 230 toward the gearbox 220a. direction, the piston rod 240 may be moved inside the outer tube. That is, the withdrawal amount of the piston rod is reduced.

When the piston rod 240 moves into the outer tube 230, the bracket 250 provided at the other end of the piston rod 240 can pull the link 112 of the first drive unit.

The driving unit 200 may include an electric cylinder driven by electricity.

The bracket 250 is coupled to the piston rod and includes a fixing pin 250c inserted into the cutout to be described later.

The transmission parts 110 and 150 include a first transmission part 110 for rotating the first louver 21 with the driving force of the driving part 200, the first louver 21 and the second louvers 22 and 23 ), and includes a second transmission unit 150 for rotating the second louvers 22 and 23 with the rotational force of the first louver 21.

The first transmission unit 110 may be disposed on one side of the frame 10 , and the second transmission unit 150 may be disposed on the other side of the frame 10 .

For example, the first transmission unit 110 may be disposed on the right frame 11 and the second transmission unit 150 may be disposed on the left frame 12 .

The transmission parts 110 and 150 may be located inside the frame 10, but are not limited thereto and may be located outside the frame 10. In addition, among the transmission parts 110 and 150 One may be located inside the frame, and the other one of the transmission parts 110 and 150 may be located outside the frame.

The first transfer unit includes a transfer unit body 111, a link 112 protruding from the transfer unit body 111 to one side, and a drive shaft extending from the transfer unit body 111 and fastened to the first rotational shaft 21a. (114).

For example, the transmission unit body 111 may be formed in a substantially cylindrical shape with the first rotational shaft 21a as a central axis, and the driving shaft 114 extends in a direction toward the first rotational shaft 21a. And, the link 112 may extend in a direction toward the outer side of the radial direction from the outer circumferential surface of the cylinder.

A cutout 113 may be formed at one side of the link 112 to fasten the bracket 250 thereto. The cutout 113 may be formed long in the longitudinal direction of the link 112 . Since the cutout 113 is formed long in the longitudinal direction, the circular linear motion of the drive unit can be converted into rotational motion. That is, the cutout 113 may guide the movement of the piston rod 240 and induce rotation of the link 112 .

The link 112 is rotatably fastened to the bracket 250 and allows the delivery unit body 111 to rotate about the first rotation shaft 21a.

For example, one end of the link 112 is accommodated inside the bracket 250, and is fastened by the fixing pin 250c in a state accommodated in the bracket 250.

That is, the cutout 113 is accommodated inside the bracket 250, the fixing pin 250c passes through the bracket 250 and the cutout 113, and the cutout 113 and the cutout 113 The bracket 250 is rotatably fastened by a penetrating fixing pin 250c.

At this time, the link 112 and the piston rod 240 are displaced at a certain angle. Accordingly, the first transmission unit 110 converts the linear motion of the driving unit 200 into rotational operation of the driving shaft 114 .

The drive shaft 114 transmits rotational force to the first rotational shaft 21a.

For example, the driving shaft 114 may be disposed on the first rotating shaft 21a and may be inserted into the first louver 21 .

In this case, the drive shaft 114 may pass through the hole 15 formed in the outer portion 11a of the first frame 11, and a washer for preventing friction with the first frame 11 ( 115) can penetrate. That is, the drive shaft 114 may be disposed on the first rotational shaft 21a, pass through the first frame 11, and be coupled to the first louver 21.

In this embodiment, the drive shaft 114 is expressed as being inserted into the first louver 21, but is not limited thereto, and the first rotation shaft 21a extends and is fastened to the drive unit body 111. It is possible. In addition, the drive shaft 114 and the first rotation shaft 21a are disposed to be spaced apart from each other, and it is also possible to configure a gear that transmits rotational force between the drive shaft 114 and the first rotation shaft 21a.

In addition, in this embodiment, the first transmission unit 110 and the driving unit 200 are expressed as being formed outside the first frame 11, but it is not limited thereto, and the first transmission unit 110 and the driving unit ( 200) may be disposed inside the first frame 11. That is, the first transmission unit 110 and the driving unit 200 may be disposed in a space defined by the outer portion 11a and the inner portion 11b of the first frame.

The second transmission unit 150 transmits the rotational force of the first rotation shaft 21a to the second rotation shafts 22a and 23a.

The second transmission unit 150 transmits rotational force from the main gear 160 fastened to one side of the first louver, the driven gear 170 fastened to one side of the second louver, and the driven gear from the main gear A rack 190 is included.

The main gear 160 and the driven gear 170 may be provided on one side of the protrusions 21c, 22c, and 22c.

The main gear 160 can rotate in both directions with respect to the first rotation shaft 21a, and the driven gears 170 and 180 can rotate in both directions with respect to the second rotation shafts 22a and 23a. there is. At this time, since the second louvers 22 and 23 may be composed of a plurality, the driven gear 170 may also be composed of a plurality.

The main gear 160 and the plurality of driven gears 170 may have the same gear ratio. Since the main gear and the same gear have the same gear ratio, the main gear and the plurality of same gears rotate at the same angular velocity, and the first louvers 21 and the second louvers 22 and 23 have the same opening angle. have

Here, the opening angle (θ1; see FIG. 9) means the angle formed by the louver surface parts 21b, 22b, and 23b with the upper or lower surface of the frame 10, and when the opening angle is 0 degrees, it is completely open. (see FIGS. 5 and 8), and when the opening angle is 90 degrees, it means completely closed (see FIGS. 7 and 10).

Therefore, the smaller the opening angle, the larger the amount of air passing through the louver device, and the larger the opening angle, the smaller the amount of air passing through the louver device.

The rack 190 may be positioned between the outer portion 12a and the inner portion 12b of the second frame 12 .

A rack guide 12d for guiding the movement of the rack 190 may be included in the outer portion 12a, and the rack 190 may move up and down while being supported by the rack guide 12d.

The outer part 12a may further include a stopper 12e disposed below the rack guide 12d to prevent separation of the rack.

Hereinafter, the process of increasing or decreasing the opening angle of the louver device will be described.

Figure 5 is a perspective view showing a fully opened louver device according to an embodiment of the present invention, Figure 6 is a perspective view showing a partially opened louver device according to an embodiment of the present invention, Figure 7 is a perspective view showing a completely closed state of the louver device according to an embodiment of the present invention, Figure 8 is a cross-sectional view showing a completely open state of the louver device according to an embodiment of the present invention, Figure 9 is this A cross-sectional view showing a partially opened louver device according to an embodiment of the present invention, and FIG. 10 is a cross-sectional view showing a completely closed louver device according to an embodiment of the present invention.

5 to 10, to increase the opening angle of the louver device, the driving unit 200 is operated. The driving unit 200 draws the piston rod 240 out of the outer tube 230 .

When one side of the piston rod 240 is moved upward, one end of the link 112 is moved upward. That is, the bracket 250 is moved upward, and one end of the link 112 is moved upward.

The link 112 rotates the drive shaft 114 clockwise, and the first louver 21 connected to the drive shaft 114 rotates clockwise. At this time, the first louver surface 21b extending from the first rotating shaft 21a rotates clockwise.

Meanwhile, as the first rotating shaft 21a moves clockwise, the main gear 160 fastened to one side of the first rotating shaft 21a rotates clockwise. In addition, the rack 190 engaged with the main gear 160 may be moved downward. Through the rack 190, the driven gear 170 engaged with the rack 190 may also rotate clockwise. The second louvers 22 and 23 fastened to the driven gear 170 are rotated clockwise.

The first louvers 21 and the second louvers 22 and 23 are rotated clockwise, and the louver surface portions 21b, 22b and 23b gradually close the openings of the frame. In other words. The opening angle is increased.

In this case, since the gear ratio of the main gear 160 and the driven gear 170 is the same, the louver surface portion 21b of the first louver 21 and the louver surface portion 22b of the second louver 22, 23. 23b ) is rotated by the same angle. For example, the louver surface portions 21b, 22b, and 23b may be rotated at the same angle while maintaining parallelism with each other.

In this embodiment, the first louver 21 rotates first, and then the second louvers 22 and 23 rotate later, but the first louver 21 and the second louvers 22 and 23 are one Since it is fastened to the rack 190, the first louvers 21 and the second louvers 22 and 23 are rotated at the same time, and the rotation angles of the first louvers 21 and the second louvers 22 and 23 are The same as each other, the rotational speed of the first louver 21 and the rotational speed of the second louvers 22, 23 are the same as each other.

The louver surface portions 21b, 22b, and 23b may be rotated so as to be perpendicular to the upper or lower surface of the frame. At this time, one upper end of the louver surface parts 21b, 22b, 23b and the other lower end of the louver surface parts 21b, 22b, 23b may contact each other, and the louver device is maximally closed.

Conversely, to decrease the opening angle of the louver device, the driving unit 200 is operated. The driving unit 200 draws the piston rod 240 into the outer tube 230 .

When one side of the piston rod 240 is moved downward, one end of the link 112 is moved downward. That is, the bracket 250 is moved downward, and one end of the link 112 is moved downward.

The link 112 rotates the drive shaft 114 counterclockwise, and the first louver 21 connected to the drive shaft 114 rotates counterclockwise. The first louver surface 21b extending from the first rotation shaft 21a rotates counterclockwise.

Meanwhile, as the first rotating shaft 21a moves counterclockwise, the main gear 160 fastened to one side of the first rotating shaft 21a rotates counterclockwise. In addition, the rack 190 engaged with the main gear 160 may be moved upward. Through the rack 190, the driven gear 170 engaged with the rack 190 may also rotate counterclockwise. The second louvers 22 and 23 fastened to the driven gear 170 are rotated counterclockwise.

The first louvers 21 and the second louvers 22 and 23 are rotated counterclockwise, and the louver surface portions 21b, 22b and 23b gradually open the openings of the frame. That is, the opening angle decreases.

When the louver surface portions 21b, 22b, and 23b are level with the upper or lower surface of the frame, the louver device is maximally opened.

Hereinafter, the control operation of the louver device according to an embodiment of the present invention will be described.

The louver device may include a control unit (not shown) electrically connected to the driving unit 200 . The controller may control the driving unit 200 and control the louvers 21, 22, and 23.

For example, the controller may control the length of the piston rod 240 . Here, the length of the piston rod 240 means the length of the piston rod 240 protruding outward from the outer tube 230, not the length of the piston rod itself, that is, the 'withdrawal amount of the piston rod'. .

Since the opening angles of the first louvers 21 and the second louvers 22 and 23 are changed when the length of the piston rod 240 is changed, the control unit controls the first louvers 21 and the second louvers 22, 23) can be controlled.

However, the present embodiment is not limited to the control unit being disposed in the louver device, and the control unit may be configured inside the outdoor unit and electrically connected to the drive unit 200 through the cable 201. At this time, the drive unit 200 may obtain power from the outdoor unit through the cable 201 .

The outdoor unit may include a fan motor that circulates air inside the outdoor unit. The control unit may control a withdrawal amount of the piston rod according to a speed of the fan motor.

For example, when the fan motor rotates at a high speed, the opening angle of the louvers 21 , 22 , and 23 may be reduced by reducing the withdrawal amount of the piston rod. Conversely, when the fan motor rotates at a low speed, the opening angles of the louvers 21, 22, and 23 may be increased by increasing the withdrawal amount of the piston rod.

In addition, the louver device may include a sensor (not shown) for detecting flowing air. For example, the sensor may detect the temperature or humidity of the air.

The control unit may control the driving unit according to the temperature or humidity of the air sensed by the sensor unit.

For example, when the temperature of the air is higher than the first reference temperature, the controller may reduce the amount of withdrawal of the piston rod to reduce the opening angles of the first and second louvers 21, 22, and 23. there is. Conversely, when the temperature of the air flowing inside the indoor unit is lower than the second reference temperature, the controller increases the withdrawal amount of the piston rod to open the first and second louvers 21, 22, and 23. angle can be increased.

In this case, the first reference temperature may be higher than the second reference temperature.

In this way, if the louvers 21, 22, and 23 are controlled according to the sensed temperature, the temperature of the indoor unit is set within a certain range (between the first reference temperature and the second reference temperature) so that the air conditioner can operate normally. temperature range), it is possible to open at a minimum angle, so that the louver is opened more than necessary and foreign substances can be prevented from entering.

In this embodiment, the louver device is expressed as including a sensor, but is not limited thereto, and the sensor may be included in the outdoor unit.

As another example, when the humidity of the flowing air is higher than the reference humidity, the controller increases the length of the piston rod 240 to increase the opening angles of the first and second louvers 21, 22, and 23. can do. Conversely, when the humidity of the air flowing inside the indoor unit is lower than the reference humidity, the controller reduces the length of the piston lobe 240 to open the first and second louvers 21, 22, and 23. angle can be reduced.

In this way, if the opening angle of the louver is increased according to the humidity, it is possible to prevent snow or rainwater from entering the outdoor unit by increasing the opening angle when it snows or rains.

Also, when the humidity of the air flowing inside the indoor unit is higher than the reference humidity, the control unit may increase the speed of the fan motor by controlling the fan motor in a state in which the opening angle of the louver is increased.

When the opening angle of the louver is increased and the speed of the fan motor is increased as described above, since the amount of air flowing through the louver can be kept constant, the operation performance of the air conditioner is prevented while preventing water or snow from entering the indoor unit. This degradation can be prevented.

In this embodiment, the louver device is expressed as including a sensor, but is not limited thereto, and the sensor may be included in the outdoor unit.

Claims (19)

a window disposed to face the outlet of the outdoor unit to discharge air, and including a first frame and a second frame disposed to face each other;
A first louver provided between the first frame and the second frame and rotatably provided;
a second louver disposed spaced apart from the first louver and rotatably provided;
an electric motor provided on the first frame and driving the first louver and the second louver;
a piston rod provided on the first frame and linearly moved by the rotational force of the electric motor;
a first transmission unit provided in the first frame and transmitting the linear motion of the piston rod to one side of the first louver; and
It is provided on the second frame, and includes a second transmission portion connecting the other side of the first louver and the second louver,
The first delivery unit
In accordance with the linear motion of the piston rod, including a link that rotates in a set direction,
The second delivery unit
A main gear that rotates in conjunction with the other side of the first louver;
a driven gear interlocking with the second louver; and
A louver device of an air conditioner comprising a rack coupled to the main gear and the driven gear and transmitting the rotational force of the main gear to the driven gear.
According to claim 1,
a cutout formed in the link; and
The air conditioner louver device further comprises a bracket coupled to the piston rod and having a fixing pin inserted into the cutout.
According to claim 2,
Louver device of an air conditioner, characterized in that when the piston rod moves linearly, the fixing pin moves within the cutout.
According to claim 3,
A louver device of an air conditioner, characterized in that the direction in which the piston rod extends and the direction in which the cutout extends cross each other.
delete According to claim 1,
The louver device of the air conditioner, characterized in that the main gear and the driven gear have the same gear ratio.
According to claim 3,
The second louver is provided with a plurality,
The louver device of the air conditioner, characterized in that the first louver is located between the plurality of second louvers.
According to claim 3,
a protrusion protruding from the end of the second louver; and
The louver device of the air conditioner, characterized in that it further comprises a groove recessed in the first frame, to which the protrusion is coupled.
According to claim 3,
The first delivery unit
A delivery unit body coupled to the link and forming a rotational center of the link; and
The louver device of the air conditioner, characterized in that it further comprises a driving shaft extending from the transmission unit body toward the first frame.
According to claim 1,
The second frame further includes a rack guide for supporting the rack,
The louver device of the air conditioner, characterized in that the rack moves up and down in a state supported by the rack guide.
According to claim 10,
The second frame is disposed under the rack guide and further includes a stopper for preventing the rack from coming off.
According to claim 3,
Including a control unit electrically connected to the electric motor,
The louver device of the air conditioner, characterized in that the control unit controls the withdrawal amount of the piston rod according to the flow rate of the air discharged from the discharge port.
According to claim 12,
A fan motor for flowing air inside the outdoor unit;
The control unit determines the flow rate of the discharged air from the number of revolutions of the fan motor.
According to claim 3,
A controller electrically connected to the electric motor and a sensor for measuring the state of the air,
The control unit controls the withdrawal amount of the piston rod based on the value detected by the sensor.
15. The method of claim 14,
The louver device of the air conditioner, characterized in that the sensor comprises a temperature sensor for detecting the temperature inside the outdoor unit.
According to claim 15,
The control unit
When the temperature inside the outdoor unit is higher than a first reference temperature, the amount of withdrawal of the piston rod is reduced;
A louver device of an air conditioner that increases a withdrawal amount of the piston rod when the temperature inside the outdoor unit is lower than a second reference temperature higher than the first reference temperature.
15. The method of claim 14,
The sensor includes a humidity sensor for detecting humidity.
18. The method of claim 17,
The control unit,
When the humidity is higher than the first reference humidity, increasing the amount of withdrawal of the piston rod,
When the humidity is lower than the second reference humidity higher than the first reference humidity, the amount of withdrawal of the piston rod is reduced.
According to claim 3,
The first frame constitutes the exterior of one side of the window,
The second frame is a louver device of an air conditioner, characterized in that constituting the exterior of the other side of the window.

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