KR102457778B1 - Air conditioner - Google Patents

Abstract

An air conditioner according to an embodiment of the present invention includes an outdoor unit and an indoor unit provided with an inlet and an outlet, wherein the indoor unit includes: a driving motor; a first link rotatably connected to the drive motor; a sub vane connected to the first link; and a main vane connected to a lower side of the sub vane, wherein the sub vane guides the rise or fall of the main vane according to the rotation of the first link.

Description

air conditioner {Air conditioner}

The present invention relates to an air conditioner.

In general, an air conditioner is a cooling/heating system that cools or heats a city by repeating the action of sucking indoor air, exchanging heat with a low-temperature or high-temperature refrigerant, and then discharging it into the room. Compressor-Condenser-Expansion A device that forms a series of cycles consisting of a valve-evaporator.

In particular, the air conditioner consists of an outdoor unit mainly installed outdoors (sometimes called 'outdoor side' or 'heat dissipation side') and an indoor unit mainly installed inside a building (also called 'indoor side' or 'heat absorbing side'). A condenser (outdoor heat exchanger) and a compressor are installed in the outdoor unit, and an evaporator is installed in the indoor unit (indoor heat exchanger).

And, as is well known, the air conditioner can be broadly divided into a separate type air conditioner in which an outdoor unit and an indoor unit are installed separately, and an integrated air conditioner in which an outdoor unit and an indoor unit are installed integrally. A coordinator is preferred.

The indoor unit may be generally classified into a ceiling type, a wall-mounted type, and a stand type according to an installation method.

In general, the air discharged through the discharge port of the indoor unit has a different discharge direction by a vane positioned at the discharge port. Thereby, a comfortable air flow from the air conditioner is provided to the indoor space.

The related literature information is as follows.

1. Publication number (disclosure date): Japanese Patent Laid-Open No. 2015-48948 (March 16, 2015)

Title of Invention: Indoor unit and air conditioner of air conditioner

2. Publication number (published date): Korea 10-2010-0076248 (July 06, 2010)

Title of Invention: Air Conditioning System

In the prior document 1, two vanes that are independently driven at the upper and lower positions of the discharge port are disclosed to increase the blowing efficiency, and in the prior document 2, the main vane and the main vane to guide the flow of the discharge air away A sub-vane that can be independently folded by being coupled to is disclosed.

On the other hand, the air conditioner disclosed in the two prior documents has the following problems.

First, since the plurality of vanes disclosed in the prior document are individually positioned and independently driven, each driving motor is essentially provided. That is, there is a problem that at least two or more driving motors are essential to drive the plurality of vanes. As a result, the number of parts provided for the plurality of vanes is relatively increased, and there is a disadvantage in that the operation or control method of the vanes becomes complicated.

In addition, there may be a problem in that the manufacturing cost of the air conditioner is increased due to the increased number of parts by the plurality of vanes. In addition, there is a problem in that the failure rate is relatively high because the driving method of the vane is complicated.

Second, there is a problem in that the flow resistance to the discharge air is increased by another vane disposed at the center of the discharge port. As a result, there is a disadvantage in that flow loss of the discharge air occurs.

Third, in the cooling mode in which the airflow in the horizontal direction is generated, the rotation angle of the vane is relatively small, and the discharge area opened by the vane is also decreased, so there is a problem in that the air volume is reduced. In addition, in the cooling mode, there is a problem that the position of the vane acts as a flow resistance with respect to the discharge air. As a result, there is a disadvantage in that the amount of air provided by the air conditioner is relatively reduced.

Fourth, since the temperature of the air discharged from the indoor unit in the heating mode is relatively high, the flow of the discharged air is directed toward the ceiling of the indoor space, so that the hot air may not reach the user located near the indoor floor. Therefore, in the heating mode, the rotation angle of the vane should be maximized to guide the discharge air toward the indoor floor. However, the conventional vane described above may have a problem in that it is difficult to smoothly flow air to a point desired by a user in a high ceiling or a large indoor space.

SUMMARY OF THE INVENTION An object of the present invention is to provide an air conditioner in which the flow of discharged air can be made more smoothly in an indoor space in order to solve the above problems.

Another object of the present invention is to provide an air conditioner in which discharged air can be discharged further in a direction desired by a user.

Another object of the present invention is to provide an air conditioner capable of increasing the range of airflow formed by discharged air.

Another object of the present invention is to provide an air conditioner capable of minimizing resistance to a discharge air passage.

Another object of the present invention is to provide an air conditioner capable of minimizing a flow loss of discharged air.

Another object of the present invention is to provide an air conditioner capable of increasing the amount of air provided in a cooling mode.

Another object of the present invention is to provide an air conditioner capable of guiding the flow of air discharged in a heating mode further away.

Another object of the present invention is to provide an air conditioner having a relatively simple vane structure and a simple vane operation method than in the related art.

In order to achieve the above object, an air conditioner according to an embodiment of the present invention includes an outdoor unit and an indoor unit provided with an inlet and an outlet, wherein the indoor unit includes: a driving motor; a first link rotatably connected to the drive motor; a sub vane connected to the first link; and a main vane connected to a lower side of the sub vane, wherein the sub vane guides the rise or fall of the main vane according to the rotation of the first link.

The indoor unit may include a second link positioned below the first link; and a third link rotatably connected to the second link.

In addition, the sub-vane is characterized in that the first link is connected to the upper end and the main vane is connected to the lower end.

In addition, the second link is characterized in that it is connected to the center of the sub-vane.

In addition, the second link is characterized in that it extends longer than the first link.

In addition, the first link and the second link, it is characterized in that it has a rotation center of a fixed position.

In addition, the third link is characterized in that one side is connected to the extension end of the second link, the other side is connected to the main vane.

In addition, the third link is characterized in that it extends shorter than the extended length of the sub-vane.

In addition, the extended length of the sub-vane is characterized in that shorter than the extended length of the main vane.

In addition, the main vane is characterized in that it is located below the second link.

In addition, the main vane is characterized in that it rotates according to the movement of the sub vane,

In addition, the sub-vane is characterized in that it is inserted or exposed in the inner space of the outlet according to the rotation direction of the first link.

In addition, in the first mode of providing cold air, the sub vane is partially inserted into the inner space, and in the second mode of providing warm air, it is characterized in that it is exposed downwardly of the outlet.

In addition, in the sub-vane and the main vane, an area for guiding the discharge air in the second mode is maximized.

According to the present invention, there is an advantage in that the air flow can be increased by reducing the resistance in the flow path of the discharge air.

According to the present invention, there is an effect that the range of the air flow provided to the indoor space by the flow of the discharge air is improved.

According to the present invention, it is possible to quickly form an air conditioning environment desired by the user. As a result, there is an effect that can improve the user's sense of pleasure and satisfaction.

According to the present invention, there is an advantage in that the configuration of the vane is simplified, so that the manufacturing cost of the air conditioner is relatively reduced compared to the prior art. That is, there is an economic advantage.

According to the present invention, since it is possible to provide an improved air volume and wind direction, the reliability of the air conditioner can be improved.

According to the present invention, there is an advantage in that various airflows can be provided in an indoor space.

1 is a view showing the exterior of an indoor unit of an air conditioner according to an embodiment of the present invention;
2 is a view showing a cross-section of an indoor unit of an air conditioner according to an embodiment of the present invention;
3 is a view showing the configuration of a vane according to an embodiment of the present invention;
4A and 4B are views comparing a first mode of a conventional vane and a vane according to an embodiment of the present invention;
5A and 5B are views comparing a conventional vane and a second mode of a vane according to an embodiment of the present invention;

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the embodiments presented below, and those skilled in the art who understand the spirit of the present invention may change other embodiments included within the scope of the same spirit by adding, changing, deleting, and adding components. It will be easy to implement, but this will also be included within the scope of the present invention.

In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but between each component another component It will be understood that may also be "connected", "coupled" or "connected".

1 is a view showing the exterior of the indoor unit of the air conditioner according to an embodiment of the present invention, and FIG. 2 is a view showing a cross section of the indoor unit of the air conditioner according to the embodiment of the present invention.

Hereinafter, the air conditioner according to the embodiment of the present invention will be described based on the ceiling type indoor unit. However, the present invention is not limited to the ceiling type indoor unit.

1 and 2 , the air conditioner according to an embodiment of the present invention may include an outdoor unit (not shown) installed outdoors and an indoor unit 1 installed indoors.

The upper part of the indoor unit 1 is fixedly installed inside the indoor ceiling to maintain a suspended state, and the lower surface of the indoor unit 1 is exposed to the lower side of the ceiling so that indoor air can be sucked in and discharged back into the room.

The indoor unit 1 may include a cabinet 30 inserted into a ceiling of an indoor space, a suction unit 20 for sucking indoor air, and a panel 10 forming an exterior edge portion.

The panel 10 is exposed to the lower side of the ceiling when the indoor unit 1 is installed. In addition, the panel 10 may be provided at the lower end of the cabinet 30 to form the outer appearance of the lower surface.

In addition, since the panel 10 is mounted on the lower end of the cabinet 30 , it may be formed in a substantially rectangular shape when viewed from below. In addition, the panel 10 may be formed to protrude outward from the lower end of the cabinet 30 so that a peripheral portion thereof is in contact with the lower surface of the ceiling.

The panel 10 may form a round groove 15 along the inner circumference for mounting the suction grill 25 . The round groove 15 may be formed in a quadrangular shape in which four vertices are rounded. In addition, the round groove 15 may form a line corresponding to the end of the protrusion of the suction grill 25 . According to this, the vane 100 of the discharge port 55, the suction grill 25, and the panel 10 are formed to feel a sense of unity as a whole.

Corner covers 12 providing a space for fixing and installing the panel 10 may be provided at four corners of the panel 10 . In addition, the end of the corner cover 12 may be disposed to face the end of the protrusion of the suction grill 25 with the round groove 15 as a boundary. In this case, both the corner cover 12 and the protrusion may be formed to have a line corresponding to the round groove 15 to form an overall appearance with a sense of unity.

In addition, in the panel 10 , an outlet 55 serving as an outlet of the air discharged through the cabinet 30 may be perforated. For example, the discharge port 55 may be formed at a position corresponding to each side of the panel 10 . In addition, the discharge port 55 may be formed to be elongated along the longitudinal direction of each side of the panel 10 . In this case, both ends of the discharge port 55 may be formed in a curved shape that becomes narrower toward the outside.

The suction part 20 may be located inside the four sides defined by the discharge port 55 . That is, the discharge port 55 may be located outside the suction port 22 .

Meanwhile, the suction part 20 may be perforated in a rectangular shape in the central portion to form a suction port 22 for guiding indoor air to flow into the indoor unit 1 . And the suction grill 25 may be installed outside the suction port 22 . The suction grill 25 forms an exterior of the lower surface of the indoor unit 1 and forms a passage for air introduced into the indoor unit 1 .

The suction grill 25 may be positioned to correspond to the central portion of the panel 10 , that is, the suction port 22 . The suction grill 25 may form a plurality of holes so that the indoor air can be directed to the suction port 22 . For example, at least a portion of the suction grill 25 may be formed in a grill or grid shape to smoothly introduce indoor air.

The suction grill 25 may filter out foreign substances in the air introduced into the indoor unit 1 through the suction port 22 . Meanwhile, an air filter may be provided on the upper side of the suction grill 25 .

Inside the cabinet 30, a blowing fan 50 for forced intake and discharge of indoor air, a bell-mouth-shaped air guide 53 for guiding the indoor air sucked by the blowing fan 50, the A heat exchanger 40 that exchanges heat with the sucked indoor air and a drain 45 that supports the heat exchanger 40 from below and collects condensed water may be provided.

In addition, an installation plate for supporting the drain part 45 and the air guide 53 from an upper side of the suction part 20 may be provided inside the cabinet 30 . The installation plate is located between the suction port 22 and the discharge port 55 to structurally separate the flow path of the air sucked through the suction port 22 and the flow path of the air discharged through the discharge port 55 function can be performed.

Meanwhile, the indoor unit 1 may further include a vane 100 capable of controlling the flow of air discharged through the discharge port 55 .

The vane 100 may open and close the discharge port 55 . In detail, since the shape of the vane 100 is formed to correspond to the shape of the discharge port 55 , the discharge port 55 may be shielded. That is, the vane 100 may be formed so that the width of both ends becomes narrower toward the outside in the same manner as the discharge port 55 . Accordingly, in the closed state of the vane 100 , the outer end of the vane 100 may be in contact with the round groove 15 .

The vane 100 may be rotatably provided to adjust the flow direction of the air discharged through the discharge port 55 . For example, according to the rotation of the vane 100 , the air discharged through the discharge port 55 may be adjusted in the vertical direction toward the indoor space to form an airflow.

Meanwhile, the vane 100 may include a main vane 110 and a sub vane 120 capable of extending a descending length of the main vane 110 . A detailed description of the main vane 110 and the sub vane 120 will be described later.

3 is a view showing the configuration of a vane according to an embodiment of the present invention. Hereinafter, the vane 100 according to an embodiment of the present invention will be described in detail with reference to FIG. 3 .

Referring to FIG. 3 , the indoor unit 1 may further include a driving motor 105 for rotating the vane 100 . The driving motor 105 may be located inside the cabinet 30 . That is, the driving motor 105 may be located on the installation plate. For example, the driving motor 105 may be installed such that a portion of the installation plate is partially embedded in the installation plate in contact with one end of the discharge port 55 .

The driving motor 105 may be connected to the vane 100 in one direction of the discharge port 55 . Accordingly, the driving motor 105 may provide a force for rotating the vane 100 in one direction of the vane 100 .

The drive motor 105 may include a drive shaft 106 that transmits force through rotation during operation. In addition, the driving shaft 106 may be connected to the vane 100 by a first link 130 to be described later. Accordingly, the force for rotation of the vane 100 may be provided by rotation of the drive shaft 106 .

On the other hand, the connection position of the driving shaft 106 and the first link 130 to be described later is at a point where the first link 130 rotates around the connection position along the rotation of the driving shaft 106 . It may be called a first fixed joint (joint).

The first fixed joint may be understood as a rotational center whose position is fixed by the drive motor 105 coupled to the installation plate, unlike the plurality of joints 123 , 124 , 125 , 145 , 155 positioned on links and vanes to be described later.

As a result, the vane 100 may be moved by the operation of the driving motor 105 . Accordingly, the vane 100 may open and close the discharge port 55 , and guide the vertical direction of the air discharged from the discharge port 55 .

The indoor unit 1 is connected to a first link 130 connected to the driving motor 105 , a second link 140 positioned below the first link 130 , and the second link 140 . It may further include a third link 150 that is.

The first link 130 may be rotatably connected to the driving motor 105 . In detail, the first link 130 is connected to the driving shaft 106 and may be positioned in a direction perpendicular to the axial direction of the driving shaft 106 .

Here, a direction perpendicular to the axial direction of the driving shaft 106 may be defined as a radial direction of the driving shaft 106 . That is, the first link 130 may extend in a radial direction of the driving shaft 106 . Accordingly, the first link 130 may be disposed in a direction perpendicular to the disposition direction of the driving motor 105 . In addition, the first link 130 may rotate clockwise or counterclockwise according to the rotation of the driving shaft 106 . (Based on Fig. 3)

The first link 130 may be formed as one frame. In addition, the first link 130 may include a first extension extending in a first direction from the driving shaft 106 and a second extension extending in a second direction bent from the first extension.

Meanwhile, a bent portion connecting the first extension and the second extension may be referred to as a bent portion.

The first extension part and the second extension part may be positioned on the same plane perpendicular to the driving motor 105 . In addition, the second extension portion may be formed to have a longer length than that of the first extension portion.

The first extension portion may extend in a straight line in the first direction. In addition, the second extension portion may extend in a straight line from the first extension portion in the second direction.

The first link 130 may have a shape in which the center is bent by the bent part. As an example, the first link 130 may be formed in a boomerang shape of an 'a' shape or a '<' shape.

On the other hand, the first link 130 is dependent on the operation of the driving motor 105 and can rotate clockwise or counterclockwise, so it may be called a main axis. In addition, the main vane 110 and the sub vane 120 to be described later are parts capable of vertical and rotational movement by receiving the force of the first link 130 , so they may be referred to as followers.

The second link 140 is positioned below the first link 130 and may be rotatably connected to the installation plate. And the second link 140 may be formed as one frame.

Meanwhile, the second link 140 may be rotated around a position where the installation plate and the second link 140 are connected by rotation of the first link 130 . Accordingly, like the first fixed joint, a position where the second link 140 and the installation plate are connected may be referred to as a second fixed joint.

The second fixed joint may be understood as a rotation center of the second link 140 having a fixed position, unlike a plurality of joints 123 , 124 , 125 , 145 , 155 to be described later.

The second link 140 may rotate by rotation of the first link 130 . For example, the second link 140 is connected to the auxiliary vane 120 in a second joint 124 to be described later, and the first link is connected to the auxiliary vane 120 in a first joint 123 to be described later. do. Accordingly, according to the rotation of the first link 130 , the auxiliary vane 120 is moved by receiving a force, and the second link 140 is rotated by receiving the force by the movement of the auxiliary vane 120 . will do

The second link 140 may include a first extension and a second extension. In addition, the second link 140 may be formed to be the same as the first link 130 except for an extended length. Accordingly, the description of the first extension part and the second extension part of the second link 140 refers to the description of the first extension part and the second extension part of the first link 130 .

However, the second link 140 may extend longer than the first link 130 . That is, the second link 140 may be formed to have an extended length longer than that of the first link 130 . Accordingly, the length of the extension surface along the extension direction of the second link 140 may be longer than that of the first link 130 .

In more detail, the second extension of the second link 140 may be longer than the second extension of the first link 130 . That is, the length of the second extension of the second link 140 may be longer than the length of the second extension of the first link 130 . In this case, the length of the first extension of the second link 140 may be the same as the length of the first extension of the first link 130 . Also, the inner angle formed by the bent portion of the second link 140 may be the same as the inner angle formed by the bent portion of the first link 130 .

Based on a state in which the vane 100 is closed to close the outlet 55 , the second link 140 may be positioned parallel to the first link 130 . For example, the first extension portion of the first link 130 is parallel to the first extension portion of the second link 140 , and the second extension portion of the first link 130 is the second link 140 . ) may be positioned to be parallel to the second extension. That is, based on the state in which the vane 100 is closed, the second link 140 extends to the position of the second joint 124 corresponding to the first joint 123 to be described later. can be symmetrical with

Meanwhile, in the state in which the vane 100 is opened, since the rotation angles of the first link 130 and the second link 140 are different, virtual extension lines drawn along each extension direction may cross each other. That is, when the vane 100 is opened to open the outlet 55 , the positions of the first link 130 and the second link 140 may not be parallel.

The second link 120 is connected to the sub-vane 120 and the third link 150, and has a rotation center fixed to the installation plate, so that the sub-vane 120 and the main vane 110 ) can guide the descent or rise of the

The third link 150 may be rotatably connected to one side of the second link 140 . Here, the other side of the second link 140 may be connected to the installation plate.

The third link 150 may be formed as one frame. In addition, the third link 150 may be formed to extend long in one direction. In addition, the third link 150 may have an extension length shorter than that of the sub vane 120 to be described later. (Based on Fig. 3)

The third link 150 may connect the second link 140 and the main vane 110 . In detail, one side of the third link 150 may be rotatably connected to the extended end of the second link 140 , and the other side of the third link 150 is located at the center of the main vane 110 . It can be rotatably connected.

In addition, the third link 150 may transmit the force transmitted through the second link 140 to the main vane 110 . Accordingly, the third link 150 may guide the rotation of the main vane 110 together with the auxiliary vane 120 . In addition, the opening degree of the discharge port 55 may be adjusted according to the rotation of the main vane 120 .

As described above, the shape of the vane 100 is formed to correspond to the shape of the discharge port 55 . In addition, the vane 100 may include a main vane 110 capable of opening and closing the discharge port 55 and a sub vane 120 capable of extending a descending length of the main vane 110 .

The main vane 110 and the sub vane 120 may be provided in a plate shape. Specifically, the main vane 110 and the sub vane 120 may be formed to extend along a long side of the discharge port 55 .

Here, the length of the vane 100 extending in the long side direction of the discharge port 55 is defined as the width. Accordingly, the main vane 110 and the sub vane 120 may extend to have the same width.

Also, a length perpendicular to the width may be referred to as an extended length of the main vane 110 or an extended length of the sub vane 120 . For example, in order to minimize interference with the discharge air inside the discharge port 55 , the extended length of the main vane 110 may be longer than the extended length of the sub vane 120 .

In addition, the main vane 110 may be formed to extend along a short side of the discharge port 55 to open and close the discharge port 55 . That is, the main vane 110 may be formed to have a size corresponding to the discharge port 55 in order to perform a function of opening and closing the discharge port 55 .

The main vane 110 may be formed to be larger than the sub vane 120 . However, the size of the sub vane 120 will not be limited thereto.

The sub-vane 120 may be connected to the first link 130 and the second link 140 from one side. In detail, the upper end of the sub-vane 120 may be connected to one end of the first link 130 , and the lower end of the sub-vane 120 may be connected to the center of the second link 120 . .

In addition, a lower end of the sub vane 120 may be rotatably coupled to the main vane 110 . Accordingly, the sub vane 120 may guide the rising or falling of the main vane 110 .

A position at which the sub-vane 120 is rotatably coupled to the first link 130 is defined as a first joint 123 . That is, the sub-vane 120 and the first link 130 are connected at the first joint 123 . Accordingly, the first joint 123 may be positioned at an upper end of the sub-vane 120 and one end of the first link 130 . In summary, the sub-vane 120 may be rotatably coupled to the first link 130 and the first joint 123 by a separate fastening member.

A position at which the sub-vane 120 is rotatably coupled to the second link 140 is defined as a second joint 124 . That is, the sub-vane 120 and the second link 140 are connected at the second joint 124 . Accordingly, the second joint 124 may be located at the center of the side end of the sub vane 120 and the center of the second link 140 . In more detail, since the second link 140 is longer than the first link 130 , the second joint 124 may be positioned at a central portion of the second extension of the second link 140 . In summary, the sub-vane 120 may be rotatably coupled to the second link 140 and the second joint 124 by a separate fastening member.

Because of the first link 130 rotatably connected to the upper end of the auxiliary vane 120 and the second link 140 rotatably connected to the center of the auxiliary vane 120, the first link 130 The maximum rotation angle of may be greater than the maximum rotation angle of the second link 140 . That is, the length of the arc drawn according to the movement of the second joint 124 due to the rotation of the second link 140 is determined by the movement of the first joint 123 due to the rotation of the first link 130 . It may be shorter than the length of the arc drawn according to

The sub vane 120 may be positioned so that the main vane 110 rises to the maximum when the outlet 55 is closed and is inserted into the outlet 55 . In this case, the lower end of the sub-vane 120 may be positioned so as to be in contact with the end of the discharge port 55 .

The sub vane 120 may descend to the maximum when the main vane 110 is in a state in which the discharge port 55 is maximally opened. In this case, the upper end of the sub vane 120 may be positioned so as to be in contact with the end of the discharge port 55 . Accordingly, since it can be in contact with the end of the discharge port 55 , the air discharged through the discharge port 55 can be guided without loss.

That is, the sub-vane 120 is exposed to the outside or hidden inside the discharge port 55 according to the opening and closing operation of the main vane 110 , so the discharge air discharged through the discharge port 55 . It may perform a function of varying and/or expanding the guide surface of the vane 100 for guiding the vertical direction of the .

The main vane 110 is located below the sub vane 120 . In addition, the main vane 110 is rotatably coupled to the lower end of the sub vane 120 . In addition, the upper end of the main vane 110 may be positioned so as to be in contact with the lower end of the sub vane 120 .

The main vane 110 may be located below the second link 140 . In addition, the second link 140 may be located below the first link 130 . Accordingly, the main vane 110 may be positioned below the first link 130 and the second link 140 .

The main vane 110 and the sub-vane 120 according to the embodiment of the present invention may increase the discharge area of the discharge port 55 compared to the conventional one. In more detail, the sub vane 120 may receive the force of the driving motor 105 by the first link 130 . As a result, the sub vane 120 may move upward or downward according to the rotation of the first link 130 . Therefore, the sub-vane 120 has an advantage in that it can extend the length of the descending of the main vane 110 coupled to the lower side compared to the prior art. Accordingly, the discharge area of the discharge port 55 opened by the vane 100 may be increased.

That is, at the same rotational angle of the vane 100 as in the prior art, the main vane 110 can be located relatively lower than the conventional one by the sub-vane 120, which increases the discharge surface and provides more It has the effect of discharging the air volume.

In addition, the sub vane 120 and the main vane 110 have an advantage that rotation can be controlled by one driving motor 105 . Accordingly, an additional power source is unnecessary, thereby reducing manufacturing cost.

In addition, since the sub-vane 120 and the main vane 110 are disposed to be in contact with each other to form a single guide surface, there is an advantage that a wider guide surface can be provided than in the related art. Accordingly, since it is possible to more easily guide the discharge air discharged through the discharge port 55 in the vertical direction, there is an advantage in that it is possible to provide a more improved air volume to a position desired by the user.

Meanwhile, a position at which the sub vane 120 is rotatably coupled to the main vane 110 is defined as a third joint 125 . That is, the sub-vane 120 and the main vane 110 are connected at the third joint 125 . Accordingly, the third joint 125 may be located at a lower end of the sub-vane 120 and an upper end of the main vane 110 . In summary, the sub vane 120 may be rotatably coupled to the main vane 110 and the third joint 125 by a separate fastening member.

In addition, the main vane 110 may be located below the second link 140 . That is, since the first link 130 and the second link 140 are connected to the sub vane 120 , the main vane 110 coupled to the lower end of the sub vane 120 is the second link 140 . ) may be located below the Accordingly, when the first link 130 and the second link 140 are rotated by the driving motor 105 , the main vane 110 can descend or rise according to the guide of the sub vane 120 . have. For example, when the drive motor 105 rotates in the forward direction (clockwise), the vane 100 may descend, and when the drive motor 105 rotates in the reverse direction (counterclockwise), the vane 100 may rise. can

Meanwhile, a position at which the second link 140 is rotatably coupled to the third link 150 is defined as a fourth joint 145 . That is, the second link 140 and the third link 150 are connected at the fourth joint 145 . Accordingly, the fourth joint 145 may be located at one end of the second link 140 and one end of the third link 150 . In this case, the other end of the second link 130 is connected to the installation plate, and the other end of the third link 150 is connected to the main vane 110 . In summary, the second link 140 may be rotatably coupled to the third link 150 and the fourth joint 145 by a separate fastening member.

As described above, the main vane 110 may be connected to the third link 150 from one side. Here, a position at which the main vane 110 is rotatably coupled to the third link 150 is defined as a fifth joint 155 . That is, the main vane 110 and the third link 150 are connected at the fifth joint 155 . Accordingly, the fifth joint 155 may be located at the center of the side end of the main vane 110 and the other end of the third link 150 . In summary, the main vane 110 may be rotatably coupled to the third link 150 and the fifth joint 155 by a separate fastening member.

The first to fifth joints 123 , 124 , 125 , 145 , 155 may be understood as positions in which the first to third links 130 , 140 , 150 and the vanes 110 and 120 are rotatably jointed, respectively.

The indoor unit 1 according to the embodiment of the present invention adjusts the rotation angle of the vanes 100 so as to provide a first mode in which the discharge air generates a horizontal airflow or a second mode in which the discharge air generates a vertical airflow. It may further include a control unit.

The controller may control the indoor unit 1 to operate in the first mode or the second mode based on input items such as an environment of an indoor space and a user's selection. In addition, the controller may control the rotation angle of the vane 100 to be appropriately adjusted according to the first mode or the second mode.

The controller may control the indoor unit 1 to be driven in the first mode when the temperature of the indoor space is higher than a preset reference temperature. That is, in the first mode, since the purpose of cooling the indoor space is, the first mode may be called a cooling mode.

In the first mode, the temperature of the discharge air discharged through the discharge port 55 may be relatively lower than the temperature of the indoor space for cooling. That is, in the first mode, the discharge air may provide cool air. Accordingly, the flow of the discharge air discharged from the discharge port 55 into the indoor space may form a downdraft toward the floor of the indoor space as a whole. That is, for uniform cooling of the indoor space, it is preferable that the discharged air is discharged to an upper portion of the indoor space.

As a result, in the first mode, the controller may control the rotation angle of the vane 100 so that the discharge air is directed toward the upper part of the indoor space. That is, the vane 100 may guide the air passing through the outlet 55 in the first mode to be discharged to the upper part of the indoor space. For example, the controller may control the operation of the driving motor 105 to rotate the vane 100 by rotation angles θ1 and θ2 matching the first mode.

In this case, the air flow formed by the air guided and discharged by the vane 100 may be defined as a horizontal air flow.

Meanwhile, when the temperature of the indoor space is lower than a preset reference temperature, the controller may control the indoor unit 1 to be driven in the second mode. That is, since the second mode aims to heat an indoor space, the second mode may be called a heating mode.

In the second mode, the temperature of the discharge air discharged through the discharge port 55 may be relatively higher than the temperature of the indoor space for heating. That is, in the second mode, the discharge air may provide warm air. Accordingly, the flow of the discharge air discharged from the discharge port 55 to the indoor space may form an upward airflow toward the ceiling of the indoor space as a whole. That is, for uniform heating of the indoor space, it is preferable that the discharged air is discharged to a lower portion (floor) of the indoor space.

As a result, in the second mode, the controller may control the rotation angle of the vane 100 so that the discharge air faces the lower part of the indoor space. That is, the vane 100 may guide the air passing through the outlet 55 to be discharged to the lower part of the indoor space in the second mode. For example, the controller may control the operation of the driving motor 105 to rotate the vane 100 by a rotation angle matching the second mode. In this case, the rotation angle may be a maximum rotation angle.

At this time, the air flow formed by the air guided and discharged by the vane 100 may be defined as a vertical air flow.

As described above, since the vane 100 according to the embodiment of the present invention includes the main vane 110 and the sub vane 120, the discharge area of the discharge port 55 can be increased compared to the prior art. According to this, it is possible to provide an improved horizontal airflow and vertical airflow compared to the related art. In this regard, it will be described in detail below with reference to FIGS. 4 and 5 .

4A and 4B are diagrams comparing a conventional vane and a first mode of a vane according to an embodiment of the present invention. In detail, FIG. 4A is a view providing a first mode by a conventional vane, and FIG. 4B is a view providing a first mode by a vane according to an embodiment of the present invention.

Referring to FIG. 4A , an imaginary straight line drawn from the driving shaft a1 of the conventional vane a2 in a direction parallel to the indoor floor surface is called a first horizontal reference line S1 .

In addition, an imaginary straight line drawn along the extension direction of the conventional vane a2 is called a first vane reference line V1.

In addition, the angle between the first horizontal reference line S1 and the first vane reference line V1 is called a first rotation angle θ1 of the vane. In addition, the conventional vane may have a first rotation angle θ1 in the first mode.

Referring to FIG. 4B , the vane 100 according to the embodiment of the present invention may include a main vane 110 and a sub vane 120 . And, an imaginary straight line drawn from the third joint 125, which is the central axis of rotation of the main vane 110 in a direction parallel to the indoor floor surface, is called a second horizontal reference line S2. The second horizontal reference line S2 may be understood as a line corresponding to the first horizontal reference line S1 .

In addition, an imaginary straight line drawn along the extension direction of the main vane 120 is called a second vane reference line V2.

In addition, the angle between the second horizontal reference line S2 and the second vane reference line V2 is called a second rotation angle θ2 of the vane. In addition, the main vane 120 may have a second rotation angle θ2 in the first mode.

In order to more easily compare the conventional vane and the vane according to the embodiment of the present invention, the extension length L1 of the conventional vane and the extension length L2 of the main vane 110 according to the embodiment of the present invention may be the same. can In addition, the first rotation angle θ1 and the second rotation angle θ2 may be the same. In addition, the vertical distance t2 from the end of the main vane 110 to the second horizontal reference line S2 is the vertical distance t2 from the end of the conventional vane a2 to the first horizontal reference line V1 and can be the same.

4A and 4B , the vane 100 according to the embodiment of the present invention may rotate according to the first mode. The controller may control the indoor unit 1 to be driven in the first mode by sensing the environment of the indoor space. And the control unit may control the vane 100 to rotate according to the first mode.

First, in a state in which the operation of the indoor unit 1 is stopped, the vane 100 may be positioned to contact the outlet 55 to close the outlet 55 . In this case, the fourth joint 145 may be positioned between the first joint 123 and the second joint 124 . In addition, the sub vane 120 may be hidden by being inserted into the inner space of the discharge port 55 .

The controller may operate the driving motor 105 to rotate the vane 100 according to the first mode. And, when the driving motor 105 operates and rotates in the forward direction, the first link 130 may rotate in the forward direction along the driving motor 105 .

Of course, the control unit may return the vane 100 to close the discharge port 55 . That is, the controller may control the driving motor 105 to rotate in the reverse direction. Accordingly, the first link 130 will also rotate in the reverse direction.

By rotation of the first link 130 , the sub vane 120 connected to the first link 130 may descend. In addition, as the sub-vane 120 descends, the main vane 110 connected to the sub-vane 120 may also descend. In addition, the second link 140 may be rotated by the lowering of the sub vane 120 .

The main vane 110 descending together with the descending of the sub vane 120 is connected to the third link 150 . Accordingly, the second rotation angle θ2 may increase as the main vane 110 descends. Conversely, the second rotation angle θ2 may decrease when the main vane 110 rises. In addition, the second rotation angle θ2 may be preset and stored in the storage means of the indoor unit 1 to be provided to the controller.

When the rotation angle of the main vane 110 reaches the second rotation angle θ2 , the controller stops the operation of the driving motor 105 to position the main vane 110 and the sub-vane 120 . can be maintained.

At this time, the main vane 120 according to the embodiment of the present invention is from the lower end of the installation plate at a distance t1 from the first horizontal reference line S1 of the conventional vane a1 to the lower end of the outlet 55 . It may be located at a point lowered by the vertical distance ?t to the second horizontal reference line S2.

Therefore, according to the embodiment of the present invention, the descending length of the main vane 110 can be extended than that of the conventional vane a1. Accordingly, since the discharge area of the discharge port 55 opened by the vane 100 is increased and the resistance of the discharge air is reduced, it is possible to provide a larger air volume than in the related art.

In addition, since the upper end of the main vane 110 is positioned to be in contact with the sub vane 120 , there is an advantage in that the loss of the discharge air can be minimized.

Meanwhile, in the first mode, the fourth joint 145 may be positioned between the second joint 124 and the third joint 125 .

5A and 5B are views comparing a conventional vane and a second mode of a vane according to an embodiment of the present invention. In detail, FIG. 5A is a view providing the second mode by a conventional vane, and FIG. 5B is a view providing the second mode by a vane according to an embodiment of the present invention.

The control unit may operate the driving motor 105 to rotate the vane 100 according to the second mode. In addition, the first link 130 rotates according to the operation of the driving motor 105 , and as described above, the main vane 110 and the sub vane 120 may descend.

The controller may rotate the vane 100 so that the second rotation angle θ2 has a maximum value in the second mode. Here, the maximum value of the second rotation angle θ2 may be preset and stored in the storage means of the indoor unit 1 in advance.

That is, in the second mode, the first link 130 and the second link 140 rotate to the maximum, and the sub vane 120 descends to the maximum. As a result, the sub vane 120 and the main vane 110 may form one guide surface. According to this, in the second mode, the guide surface of the vane 100 has an extended length obtained by adding the extended length L2 of the main vane 110 and the extended length L3 of the sub vane 120 to the maximum. can have an area.

The guide surface is composed of one surface of the main vane 110 and one surface of the sub-vane 120, and may form a single gently curved surface in the second mode. And in the second mode, the inner angle formed by the main vane 110 and the sub-vane 120 may have a maximum value.

As a result, the area of the guide surface of the vane 100 for guiding the vertical direction of the discharge air is wider than that of the conventional vane a2. According to this, even if the rotation angle is the same as that of the conventional vane a2, there is an advantage in that air can flow more smoothly to a point desired by a user in a high ceiling or a large indoor space.

That is, the discharge air that rises from the indoor space in which the indoor unit 1 is installed due to the temperature of the discharge air higher than the temperature of the indoor space reaches the discharge pressure by the vane 100 to the floor of the room, so that the airflow is more uniform than in the prior art. can be provided in the strong indoor space, and has the effect of providing an improved air conditioning environment.

That is, the sub-vane 120 lowers the main vane 110 in the first mode, and at the same time, a part is hidden into the inner space of the discharge port 55 so that the air of the discharge port 55 is moved in the horizontal direction. can be easily guided. In addition, the sub vane 120 may be maximally exposed in the second mode to expand the guide area of the discharge air. Accordingly, the area of the guide surface of the vane 100 may be varied by the sub vane 120 .

Meanwhile, in the second mode, the fourth joint 145 may be positioned below the third joint 125 .

Meanwhile, the main vane 110 may be referred to as a first vane, and the auxiliary vane 120 may be referred to as a second vane.

1: indoor unit 100: vane
110: main vane 120: sub vane
130: first link 140: second link
150: third link

Claims (14)

An air conditioner comprising an outdoor unit and an indoor unit having an inlet and an outlet, the air conditioner comprising:
The indoor unit,
drive motor;
a first link having one end rotatably coupled to the driving motor;
a sub vane rotatably coupled to the other end of the first link; and
and a main vane extending from the lower end of the sub vane,
The sub vane is
The air conditioner, characterized in that for guiding the rising or falling of the main vane according to the rotation of the first link.
The method of claim 1,
The indoor unit,
a second link located below the first link; and
The air conditioner further comprising a third link rotatably connected to the second link.
3. The method of claim 2,
The sub vane is
The air conditioner according to claim 1, wherein the first link is connected to an upper end and the main vane is connected to a lower end.
4. The method of claim 3,
The second link is an air conditioner, characterized in that it is connected to the center of the sub-vane.
3. The method of claim 2,
The second link is an air conditioner, characterized in that it extends longer than the first link.
3. The method of claim 2,
The first link and the second link, the air conditioner, characterized in that it has a fixed rotation center.
3. The method of claim 2,
The third link is
An air conditioner, wherein one side is connected to the extended end of the second link and the other side is connected to the main vane.
8. The method of claim 7,
The third link is an air conditioner, characterized in that it extends shorter than the extended length of the sub-vane.
The method of claim 1,
The extended length of the sub vane is shorter than the extended length of the main vane.
3. The method of claim 2,
The main vane is an air conditioner, characterized in that located below the second link.
The method of claim 1,
The air conditioner, characterized in that the main vane rotates according to the movement of the sub vane.
The method of claim 1,
The sub-vane is inserted or exposed in the inner space of the discharge port according to the rotation direction of the first link.
13. The method of claim 12,
The sub vane is
In the first mode of providing cold air, a part is inserted into the inner space,
In the second mode of providing the warm air, the air conditioner, characterized in that all exposed downward of the discharge port.
14. The method of claim 13,
The sub-vane and the main vane have a maximum area for guiding the discharge air in the second mode.

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