air conditioner

Abstract

This invention relates to air conditioners. The air conditioner of this invention includes: a housing having an inlet and an outlet; a blower fan disposed inside the housing; an outlet guide forming an outlet flow path that guides air flowing by the blower fan toward a forward and downward direction; a first blade and a second blade for guiding the air; a first connector and a second connector respectively connected to the housing and the first blade; a third connector respectively connected to the first connector and the second blade; and a motor for rotating the first connector; wherein if the first blade is disposed at a first position guiding air discharged from the outlet toward a forward direction, the forward end of the first blade is located forward of the front wall of the housing.

Description

Technical Field

[0001] This invention relates to air conditioners, and more specifically, to an indoor unit of an air conditioner with two blades arranged at the outlet. Background Technology

[0002] An air conditioner is a device that includes a compressor for compressing refrigerant, a condenser for condensing the compressed refrigerant, an expander for expanding the condensed refrigerant, and an evaporator for evaporating the expanded refrigerant. It is capable of using the structure described above to allow the refrigerant to flow, thereby heating or cooling indoor air and adjusting the indoor air to a suitable temperature.

[0003] An air conditioner may include an indoor unit and an outdoor unit. The indoor unit has a heat exchanger for exchanging heat with indoor air, and the outdoor unit has a heat exchanger for exchanging heat with outdoor air. The heat exchangers, respectively located in the indoor and outdoor units, can function as either evaporators or condensers depending on the flow of the refrigerant.

[0004] In the case of air conditioners, based on their configuration and structure, they can be divided into ceiling-mounted, floor-standing, and wall-mounted types. In the case of wall-mounted air conditioners, they are installed on the upper part of the wall in the indoor space, forming an exhaust outlet to discharge the heat-exchanged air downwards and forwards.

[0005] In wall-mounted air conditioners, one or two blades can be installed at the outlet to expand the airflow direction range of the air discharged through the outlet.

[0006] Korean Patent Publication No. 10-2005-0066463 discloses an air conditioner with two blades. However, since each blade is fixed to the casing in a rotatable manner, the airflow direction range of the air discharged through the outlet may be limited.

[0007] Korean Patent Publication No. 10-2020-0075559 discloses a structure in a ceiling-mounted air conditioner that uses two or more connectors to change the position of two blades. However, in the case of a ceiling-mounted air conditioner, since the discharge flow path is formed downwards, there are limitations in covering the discharge outlet of a wall-mounted air conditioner with the same structure or in changing the configuration for guiding the discharged air.

[0008] In addition, in wall-mounted air conditioners where the exhaust flow path is inclined forward and downward, only by increasing the rotation range of the blades can the exhaust outlet be covered or the airflow direction range of the air exhausted from the exhaust outlet be increased.

[0009] Furthermore, wall-mounted air conditioners, which use a single outlet to expel air, have an outlet that is longer in the lateral direction compared to ceiling-mounted air conditioners. This results in the blades covering the outlet also being longer in the lateral direction, which may cause twisting problems when the blades move, or may place a greater load on the connecting parts that move the blades. Summary of the Invention

[0010] The problem the invention aims to solve

[0011] The problem to be solved by the present invention is to provide an air conditioner that discharges air over a long distance based on the position of the blades.

[0012] Another problem to be solved by the present invention is to provide an air conditioner that expands the airflow direction range of the air discharged from the air conditioner that forms an exhaust flow path toward the lower front side.

[0013] Another problem to be solved by the present invention is to provide an air conditioner that enables the blades, whose positions are changed by using two or more connecting members, to stably change position.

[0014] Another problem to be solved by the present invention is to provide an air conditioner that, in the use of a two-blade structure, can ensure the volume of air discharged from the discharge outlet by ensuring the space of the discharge flow path.

[0015] The subject matter of this invention is not limited to the above-described subject matter, and other issues not mentioned will be clearly understood by those skilled in the art from the following description.

[0016] means for solving problems

[0017] The air conditioner of the present invention includes: a housing having an intake port and an outlet formed below the intake port; a blower fan disposed inside the housing to form an airflow from the intake port toward the outlet; and an outlet guide forming an outlet flow path that guides the air flowing by the blower fan toward a forward and downward direction, wherein the outlet is formed at the downstream end of the outlet flow path.

[0018] To achieve the aforementioned goal, the air conditioner of this invention includes: a first blade that closes the discharge outlet or guides air discharged from the discharge outlet; a second blade rotatably disposed on one side of the housing to guide air flowing in the discharge path; a first connector rotatably mounted on one side of the housing and connected to one side of the first blade; a second connector rotatably mounted on the other side of the housing and connected to the other side of the first blade; a third connector rotatably connected to the first connector to change the position of the second blade; and a motor fixedly disposed on the housing to rotate the first connector; thereby increasing the airflow direction range of the air discharged from the discharge outlet. Furthermore, when the first blade is disposed in a first position guiding the air discharged from the discharge outlet forward, the front end of the first blade is positioned forward of the front wall of the housing, thereby enabling the discharged air to be output over a longer distance.

[0019] The second blade is rotatably disposed in the discharge flow path. In the first position, the front end of the second blade is positioned above the rear end of the first blade, thereby enabling the air flowing through the discharge flow path to flow from the second blade toward the first blade.

[0020] The second blade is rotatably disposed in the discharge flow path. In the first position, the second blade is located above the first blade and is configured to be more inclined than the first blade, thereby enabling the air flowing through the discharge flow path to flow from the second blade toward the first blade.

[0021] The first blade has a downwardly convex curved shape. In the first position, the front end and rear end of the first blade are configured to be higher than the central part of the first blade, thereby enabling the air flowing along the first blade to be expelled forward.

[0022] The discharge guide includes an upper guide disposed on the upper side of the discharge flow path and a lower guide disposed on the lower side of the discharge flow path. In the first position, the rear end of the first blade is disposed at the discharge port, and the rear end angle of the first blade and the angle of the lower guide have a difference of less than 30 degrees, thereby enabling the air flowing along the lower guide to flow along the lower surface of the first blade.

[0023] The discharge guide includes an upper guide disposed on the upper side of the discharge flow path and a lower guide disposed on the lower side of the discharge flow path. The second connector is closer to the discharge outlet than the first connector and closer to the upper guide than the first connector. The distance between the rotation axis of the first connector and the rotation axis of the second connector is greater than the distance from the rotation axis of the first connector to the end of the first connector connected to the first blade, thereby increasing the rotation range of the first blade.

[0024] The second connector is located behind the first blade in the width direction and is rotatably connected to the first blade.

[0025] The length of the second connector is greater than the distance from the rotation axis of the first connector to the end of the first connector that is connected to the first blade, thereby increasing the rotation range of the first blade.

[0026] The second connector is rotatably configured on the housing on a virtual line extending from the upper guide, thereby increasing the rotation range of the first blade.

[0027] The first blade includes: a first blade plate configured to cover a portion of the discharge port, or configured to guide air discharged from the discharge port; and a first connecting plate protruding from both ends of the first blade plate and rotatably connected to the first connector and the second connector, thereby enabling connection to the first connector and the second connector via the first connecting plate.

[0028] The first connecting plate has a first connecting hole and a second connecting hole. The first connecting member is rotatably connected to the first connecting hole, and the second connecting member is rotatably connected to the second connecting hole. The distance between the first connecting hole and the first blade plate in the height direction is greater than the distance between the second connecting hole and the first blade plate in the height direction, thereby increasing the rotation range of the first blade.

[0029] The first connector includes: a rotating plate rotatably disposed on the housing; and a fixed connector disposed at a predetermined interval from the center of the rotating plate and extending radially outward from the rotating plate.

[0030] The fixed connector is bent so that the rear end of the first blade is positioned between the rotation center of the rotating plate and the connecting end of the fixed connector, thereby increasing the rotation range of the first blade.

[0031] At the second position where the first blade rotates to its maximum, the rear end of the first blade is positioned between the curved surfaces of the fixed connector, thereby increasing the rotation range of the first blade.

[0032] It also includes an inner frame comprising: an upper guide wall disposed on the upper side of the discharge flow path; and a pair of inner sidewalls extending downward from both ends of the upper guide wall, wherein the first connector and the second connector are connected to the pair of inner sidewalls.

[0033] The inner sidewall includes a rotation guide portion that forms an insertion slot for the rotating plate to be inserted, such that the first connector is configured in a rotatable manner, thereby enabling the first connector to be stably installed and rotated.

[0034] The first connector includes: a rotating shaft portion that protrudes from the center of the rotating plate toward one side and is connected to the motor to form the rotating shaft of the rotating plate; and an inner stop portion that protrudes from the rotating plate toward the forming direction of the rotating shaft portion to restrict the rotation of the rotating plate, thereby enabling the first connector to be stably installed and rotated.

[0035] The inner frame includes a support member disposed between a pair of inner sidewalls at both ends of the upper guide member, supporting the movement of the first blade or the second blade, thereby enabling the first blade and the second blade to move stably.

[0036] The air conditioner includes: a pair of auxiliary connectors connecting the support member and the first blade; and a connecting rod spaced apart from the first blade in the height direction, connecting each of the pair of auxiliary connectors, wherein the center of the auxiliary connector connected to the support member is configured to be the same as the rotation center of the second connector, thereby enabling the auxiliary connector to support the movement of the first blade.

[0037] The second blade includes an auxiliary connector connecting the support and the second blade. The connection center of the auxiliary connector and the support is configured to be the same as the rotation center of the second blade, thereby enabling the second blade to rotate stably using the support.

[0038] The second blade includes: a second blade plate for adjusting the direction of air discharged from the outlet; a second connecting plate extending perpendicularly from both ends of the second blade plate along its length; a first protrusion for rotatably connecting the second blade plate to the housing; and a second protrusion spaced apart from the first protrusion, protruding from the second connecting plate and rotatably connected to the third connector.

[0039] The second connecting plate extends toward the lower side of the second blade plate, and the first protrusion is located below the center of the rotating plate, thereby changing the position of the second blade.

[0040] The air conditioner of the present invention includes: a first blade for closing the discharge outlet or guiding air discharged from the discharge outlet; a second blade for guiding air flowing in the discharge path; a first connector connected to one side of the first blade, including a circular rotating plate and a fixed connector extending outward from the rotating plate; a second connector connected to the other side of the first blade; a third connector rotatably connected to the first connector to change the position of the second blade; and a motor for rotating the first connector. Additionally, the discharge guide includes an inner frame, the inner frame including a pair of inner sidewalls connected to the first connector and the second connector, the inner frame including a circular insertion slot for inserting the first connector, thereby ensuring that the connection structure of the connector does not obstruct airflow.

[0041] Detailed descriptions of other embodiments are provided in the accompanying drawings.

[0042] Invention Effects

[0043] The air conditioner of the present invention has one or more of the following effects.

[0044] First, in an air conditioner that forms an exhaust flow path facing forward and downward, the first blade is positioned in front of the front wall of the casing, enabling the exhaust air to travel a long distance, thus providing the advantage of rapid convection of the indoor space.

[0045] Secondly, by utilizing the positions and length relationship between the first and second connectors to expand the movement range of the first blade, and forming a forward-facing and downward-facing discharge path, the first blade can cover the discharge port, or cause the air discharged from the discharge port to flow forward or downward. That is, it has the advantage of enabling the indoor space to quickly reach the target temperature based on the temperature of the discharged air.

[0046] Third, it has the advantage that the first connector can be rotated stably through the shape and installation structure of the first connector, and that the movement of the first and second blades can be stably achieved by setting additional connectors or connection structures on the first or second blade.

[0047] Fourth, because the first or second blade is curved or has a curved shape, it can be configured not to cover the discharge port in the first or second position. That is, it has the advantage of being able to maintain the wind direction of the air flowing through the discharge port while controlling the wind direction of the air discharged from the discharge port.

[0048] The effects of the present invention are not limited to those described above, and those skilled in the art can clearly understand other effects not mentioned from the scope of the claims. Attached Figure Description

[0049] Figure 1 This is a perspective view of an air conditioner according to an embodiment of the present invention.

[0050] Figure 2 This is a cross-sectional view of an air conditioner according to an embodiment of the present invention.

[0051] Figure 3 This is an exploded view of the outer casing, a plurality of connectors, and a plurality of blades of an air conditioner according to an embodiment of the present invention.

[0052] Figure 4 This is a side sectional view of the inner frame according to an embodiment of the present invention.

[0053] Figure 5 This is a perspective view of the inner frame according to an embodiment of the present invention.

[0054] Figure 6 This is a rear view of the inner frame according to an embodiment of the present invention.

[0055] Figure 7 This is a perspective view of the first blade according to an embodiment of the present invention.

[0056] Figure 8 This is a side view of the first blade according to an embodiment of the present invention.

[0057] Figure 9 This is a perspective view of the second blade according to an embodiment of the present invention.

[0058] Figure 10 This is a perspective view of the bottom surface of the second blade according to an embodiment of the present invention.

[0059] Figure 11a This is a side view of the second blade according to an embodiment of the present invention.

[0060] Figure 11b This is a side view of the second blade according to another embodiment of the present invention.

[0061] Figure 12 This is a side view of the first connector according to an embodiment of the present invention.

[0062] Figure 13 This is a side view of the first connector according to an embodiment of the present invention.

[0063] Figure 14 This is a perspective view of the second connector according to an embodiment of the present invention.

[0064] Figure 15This is a side view of the third connector according to an embodiment of the present invention.

[0065] Figure 16 This is a diagram illustrating an auxiliary connector and a connecting rod disposed on the upper side of the first blade according to an embodiment of the present invention.

[0066] Figure 17 This is a perspective view of a connecting rod according to an embodiment of the present invention.

[0067] Figure 18 This is a perspective view of an auxiliary connector according to an embodiment of the present invention.

[0068] Figure 19 This is a diagram illustrating the state in which the first blade and the second blade of the present invention are configured at the reference position P0.

[0069] Figure 20 This is a diagram illustrating the state in which the first blade and the second blade of the present invention are arranged at the first position P1.

[0070] Figure 21 This is a diagram illustrating the state in which the first blade and the second blade of the present invention are configured in the third position P3.

[0071] Figure 22 This is a diagram illustrating the state in which the first blade and the second blade of the present invention are arranged at the second position P2.

[0072] Figure 23 This diagram illustrates the state in which the first stop member contacts the first blade when the first connecting member of the present invention is rotated to close the discharge port with the first blade. Detailed Implementation

[0073] The advantages, features, and methods of implementing this invention will become clear from the following embodiments and drawings. However, this invention is not limited to the embodiments disclosed below and can be implemented in different forms. These embodiments are merely provided to ensure the completeness of the disclosure and to clearly inform those skilled in the art of the scope of this invention, which is defined only by the scope of the claims. In this specification, the same reference numerals denote the same constituent elements.

[0074] according to Figures 1 to 6 , Figures 19 to 22 The directions U, D, Le, Ri, F, and R used to illustrate this invention are defined according to the accompanying drawings, but this is only for the purpose of clearly understanding the invention. Depending on the reference position, each direction may have different definitions.

[0075] according to Figures 7 to 1The descriptions of the height directions h+, h-, width directions w+, w-, and length directions l+, l-, as illustrated in Figure 1, are defined based on the accompanying drawings. However, this is only for the purpose of clearly understanding the invention, and the definitions of each direction may differ depending on the reference position. Figures 7 to 1 The length directions l+ and l- used in 1 can be identified as being related to the length directions in 1. Figures 1 to 6 , Figures 19 to 22 The left and right directions Ri and Le used are the same.

[0076] The present invention will now be described with reference to the accompanying drawings illustrating the air conditioner, based on embodiments thereof.

[0077] <Overall Composition>

[0078] The following is for reference Figures 1 to 6 This section explains the overall structure of the air conditioner in this embodiment.

[0079] The air conditioner includes: a housing 10 forming the exterior and having an inlet 22 and an outlet 24; a heat exchanger 28 for heating or cooling air flowing inside the housing 10; a blower fan 26 for directing air from inside the housing 10 to the outlet 24; and an outlet guide 30 for guiding the air flowing by the blower fan 26 to the outlet 24.

[0080] The outer casing 10 may have an air intake 22 formed on the upper part of the upper wall 12 or the upper part of the front wall 14, and an air exhaust 24 formed on the lower part of the front wall 14. The outer casing 10 may have a cuboid shape that is elongated along the left and right sides.

[0081] As a wall-mounted air conditioner, the outlet 24 can be formed below the inlet 22, so that the air inside the casing 10 flows from top to bottom. (Refer to...) Figure 2 The intake port 22 can be configured on the upper side of the center 26a of the air supply fan 26, and the exhaust port 24 can be configured on the lower side of the center 26a of the air supply fan 26.

[0082] Reference Figures 1 to 2 The outer peripheral surface of the housing 10 may include: an upper wall 12 having an intake port 22; a front wall 14 extending downward from the front end of the upper wall 12 and configured to cover the front; a lower wall 16 formed in the opposite direction to the upper wall 12; and two side walls 18 forming surfaces perpendicular to the front wall 14, the upper wall 12, and the lower wall 16.

[0083] Reference Figure 2 The front wall 14 and the lower wall 16 are naturally connected in a curved shape, and an outlet 24 can be formed at the part where the front wall 14 and the lower wall 16 are connected in a curved shape. The outlet 24 can be formed on the lower front side of the outer casing 10.

[0084] A space is formed inside the housing 10 for configuring the heat exchanger 28 and the blower fan 26. A guide may be formed inside the housing 10 to guide air drawn in from the intake port 22 to the blower fan 26, or to guide air flowing from the blower fan 26 to the exhaust port 24. An exhaust guide 30 may be formed inside the housing 10 to guide air flowing from the blower fan 26 to the exhaust port 24.

[0085] The discharge guide 30 forms a discharge flow path 30a that allows airflow from the blower fan 26 to pass through. The discharge guide 30 directs the airflow from the blower fan 26 to the discharge outlet 24. (See reference...) Figure 2 The discharge path 30a extends from the air supply fan 26 towards the front and lower side.

[0086] Reference Figure 2 The discharge guide 30 may include an upper guide 36 disposed on the upper side of the discharge flow path 30a and a lower guide 32 disposed on the lower side of the discharge flow path 30a. The upper guide 36 is connected from a front portion relative to the center 26a of the air supply fan 26 to the upper end of the discharge outlet 24. The lower guide 32 is connected from a rear portion relative to the center 26a of the air supply fan 26 to the lower end of the discharge outlet 24.

[0087] The lower guide 32 includes a curved surface 32b and a straight surface 32a. The curved surface 32b is formed to guide air expelled by the blower fan 26 toward the rear side or the lower side of the blower fan 26 to the outlet 24. The straight surface 32a extends from the curved surface 32b toward the outlet 24.

[0088] The radius of curvature of surface 32b is greater than that of the air blower 26. In this embodiment, surface 32b can extend to the lower rear side of the air blower 26. Air flowing by the air blower 26 can be reflected by surface 32b and flow to the upper guide 36 side.

[0089] The straight surface 32a can extend naturally from the curved surface 32b. Therefore, it can extend at an angle formed by the end of the curved surface 32b. The straight surface 32a can form an angle so that its end faces forward and downward.

[0090] The upper guide 36 forms the lower guide 32 and the discharge flow path 30a, and is configured to face the lower guide 32. The upper guide 36 may form a straight surface upstream of the discharge flow path 30a.

[0091] The upper guide 36 can form an outlet flow path 30a together with the straight surface 32a. The upper guide 36 and the virtual horizontal line formed along the front-rear direction create an angle of inclination. ("Upper guide corner", see reference) Figure 20 The size of the angle is smaller than the angle of inclination formed by the straight plane 32a and the virtual horizontal line. ("Lower guide corner", see reference) Figure 20 The size of ).

[0092] Reference Figure 2 , Figures 4 to 6 The air conditioner 1 includes an inner frame 34, which is disposed on the lower side of the heat exchanger 28, drains the condensate that falls from the heat exchanger 28, and forms an upper guide 36.

[0093] Reference Figure 4 The inner frame 34 includes an inner sidewall 38 that extends downward from both ends of the upper guide 36, and is provided with a plurality of connectors described later to form the two sidewalls of the discharge flow path 30a.

[0094] Reference Figure 5 The inner sidewalls 38 can be configured as a pair extending downward from both ends of the upper guide 36, and the pair of inner sidewalls 38 can be connected to a plurality of connectors 100, 120, 130 connected to both ends of the first blade 70 and the second blade 80, respectively.

[0095] A rotation guide 40 is formed on the inner sidewall 38, which allows the rotating plate 102 of the first connecting member 100 (described later) to be rotatably configured. (See reference...) Figure 4 An insertion groove 41 for inserting the rotating plate 102 is formed in the inner sidewall 38 of the rotation guide portion 40. A central hole 42 is formed in the center of the rotation guide portion 40, which is for inserting the rotating shaft portion 104 of the rotating plate 102 and is connected to the motor 60.

[0096] The rotating plate 102 can be installed into the insertion slot 41 to form a flow path formed by the inner sidewall 38. When the rotating plate 102 is installed into the insertion slot 41, it can form a smooth wall surface with the inner sidewall 38. Therefore, even if the first connector 100 is rotatably installed into the inner sidewall 38, it will not obstruct the flow of air in the discharge flow path.

[0097] Reference Figure 4 The inner sidewall 38 may be provided with a second connector connecting portion 46 for rotatably fixing the second connector 120, and a second blade connecting portion 48 for rotatably fixing the first protrusion 86 of the second blade 80. A first groove 46a is formed in the second connector connecting portion 46 for the first connecting protrusion 124 of the second connector 120 to be inserted into and fixed. A second groove 48a is formed in the second blade connecting portion 48 for the first protrusion 86 of the second blade 80 to be inserted into.

[0098] A motor 60 connected to the rotating plate 102 can be fixedly configured on the other side of the inner wall 38 of the rotating plate 102.

[0099] Reference Figure 5 The inner frame 34 includes a support member 50, which includes a first connector 52 that rotatably connects to the auxiliary connector 140 described later, and a second connector 54 that rotatably connects to the third protrusion 92 of the second blade 80 described later.

[0100] The support member 50 may be disposed between a pair of inner sidewalls 38 disposed at both ends of the upper guide member 36. At least one support member 50 may be disposed between a pair of inner sidewalls 38 disposed at both ends of the upper guide member 36. (Refer to...) Figure 5 The inner frame 34 may be configured with two support members 50 that are spaced apart from each other in the left-right direction.

[0101] The first connector 52 may have a first connector hole 52a that connects to a first auxiliary protrusion 144 of the auxiliary connector 140. The first connector hole 52a may be aligned with a first groove 46a of the second connector connecting portion 46 formed in the inner wall 38. The second connector 54 may have a second connector hole 54a that connects to a third protrusion 92 of the second blade 80. The second connector hole 54a may be aligned with a second groove 48a of the second blade connecting portion 48 formed in the inner wall 38.

[0102] Support member 50 can fix auxiliary connector 140 and second blade 80 (see reference). Figure 10 The third protrusion 92 (refer to) Figure 10 This allows it to rotate. The support member 50 may include a first support rod 56 and a second support rod 58, the first support rod 56 extending forward from the upper guide 36 to connect the inner frame 34 and the first connector 52, and the second support rod 58 extending downward from the upper guide 36 to connect the inner frame 34 and the second connector 54.

[0103] The first connector 52 can be arranged on the same line as the second connector connecting portion 46. Viewed from the side, the first connector 52 can be positioned overlapping the second connector connecting portion 46. The second connector 54 can be arranged on the same line as the second blade connecting portion 48. Viewed from the side, the second connector 54 can be positioned overlapping the second blade connecting portion 48.

[0104] Reference Figure 2 The blower fan 26 directs the air flowing into the housing 10 through the intake port 22 to the exhaust port 24. The blower fan 26 can be a crossflow fan that draws in and exhausts air in a direction perpendicular to the axis of rotation of the blower fan 26.

[0105] The center 26a of the air supply fan 26 is located below the intake port 22. The center 26a of the air supply fan 26 is located above the exhaust port 24.

[0106] The blower fan 26 is positioned below the heat exchanger 28, causing the air that flows into the housing 10 through the intake port 22 and exchanges heat with the heat exchanger 28 to flow toward the exhaust port 24.

[0107] The air conditioner 1 may also include a blower fan motor (not shown) disposed on one side of the blower fan 26 and causing the blower fan 26 to rotate.

[0108] The heat exchanger 28 can cool or heat the flowing air by exchanging heat with the air flowing inside the housing 10. The heat exchanger 28 can exchange heat with the air flowing inside the housing 10 by condensing or evaporating the refrigerant flowing inside.

[0109] Reference Figure 2 The heat exchanger 28 can be configured between the blower fan 26 and the intake port 22 to exchange heat with the external gas flowing in from the intake port 22. The heat exchanger 28 can be configured in the direction in which the external gas flows in from above the blower fan 26 and toward the blower fan 26.

[0110] The air conditioner 1 may also include a first blade 70 and a second blade 80 disposed on the discharge outlet 24 or the discharge flow path 30a to guide the direction of the discharged air. The configuration of the first blade 70 and the second blade 80, as well as the plurality of connecting members that change their positions, will be described in detail below.

[0111] Reference Figures 2 to 3 The air conditioner 1 includes: a first blade 70 for adjusting the air discharged from the outlet 24; a second blade 80 for adjusting the direction of the air discharged from the outlet 24, one side of which is rotatably fixed to the outer casing 10; a first connector 100 rotatably connected to the outer casing 10, one end of which is rotatably connected to the first blade 70; a motor 60 for rotating the first connector 100; a second connector 120 rotatably connected to the outer casing 10 at one end and rotatably connected to the first blade 70 at the other end; and a third connector 130 rotatably connected to one side of the first connector 100 at one end and rotatably connected to the second blade 80 at the other end.

[0112] The first connector 100 and the second connector 120 are respectively connected to both ends of the first blade 70. The third connector 130 is respectively connected to both ends of the second blade 80.

[0113] Reference Figure 3The air conditioner 1 includes an auxiliary connector 140 that supports a first blade 70 that moves via a first connector 100 and a second connector 120. The auxiliary connector 140 is connected to the first blade 70 between its two ends.

[0114] When the first blade 70 moves, the auxiliary connector 140 moves in the same way as the second connector 120.

[0115] Reference Figure 2 The two ends of the first blade 70 are connected to the outer casing 10 via two connectors 100 and 120, respectively. One side of the second blade 80 is rotatably connected to the outer casing 10, and the other side is connected to the outer casing 10 via a third connector 130. Connectors 130 and 140, which are connected to the first blade 70, are connected to the inner sidewalls 38 formed on both sides of the outlet 24 of the outer casing 10. One side of the second blade 80 is connected to the inner sidewalls 38 formed on both sides of the outlet 24 of the outer casing 10.

[0116] The motor 60 is positioned in opposite directions relative to the inner sidewall 38, where a plurality of connecting members 130 and 140 are arranged. The motor 60 can be fixedly mounted to one side of the inner sidewall 38.

[0117] Reference Figure 4 A rotation guide portion 40 is formed on the inner sidewall 38 for the rotating plate 102, on which the first connecting member 100 (described later) is disposed. The rotation guide portion 40 forms a space for mounting the rotating plate 102 in a rotatable manner. (See reference...) Figure 4 The rotation guide portion 40 has an insertion groove 41 that allows the rotating plate 102 to be rotatably configured. The rotation guide portion 40 includes an inner protrusion 44 that protrudes from the insertion groove 41 and restricts the rotation of the rotating plate 102. The rotation guide portion 40 has a central hole 42 for the insertion of the rotation shaft portion 104 of the rotating plate 102.

[0118] The first blade 70 and the second blade 80 open and close the discharge port 24, which is open to the lower front side of the outer casing 10. The first blade 70 and the second blade 80 adjust the direction of the air discharged through the discharge flow path 30a.

[0119] The first blade 70 is connected to the outer casing 10 via a first connector 100 and a second connector 120. (Refer to...) Figure 2 The first blade 70 is not directly connected to the outer casing 10, but is connected to the outer casing 10 via two connectors 130 and 140. The first blade can be repositioned via the first connector 100 and the second connector 120, and can be configured to be vertical or horizontal to the ground. This connection structure of the first blade 70 can expand the airflow direction range of the air discharged from the air conditioner.

[0120] Reference Figures 7 to 8The first blade 70 includes: a first blade plate 72, an opening and closing outlet 24; and a first connecting plate 74, which protrudes from both ends of the first blade plate 72 and is connected to the first connecting member 100 and the second connecting member 120.

[0121] Reference Figure 7 The first blade 70 may further include a first support plate 76 that protrudes upward from the first blade plate 72 in the height direction h+, h- and is connected to the auxiliary connector 140. A third connecting hole 76a is formed in the first support plate 76, which connects to one end of the auxiliary connector 140. The third connecting hole 76a may be formed on the same line as a second connecting hole 74b, which is configured to connect the second connector 120 to the first connecting plate 74. When viewed from the side, the third connecting hole 76a is positioned overlapping the second connecting hole 74b.

[0122] The first blade plate 72 opens and closes the discharge port 24, or adjusts the direction of air discharge from the discharge port 24.

[0123] Reference Figure 8 The first blade plate 72 is formed to a size that can cover the discharge port 24 formed by the outer casing 10. The first blade plate 72 may form a downwardly convex curved surface. A plurality of protrusions 72a extending in the left-right direction and spaced apart in the front-back direction may be formed on the upper surface of the first blade plate 72.

[0124] The first blade 70 is connected to the first connecting member 100 and the second connecting member 120 via a pair of first connecting plates 74 disposed at the two ends l+ and l- along the length direction of the first blade plate 72. (Refer to...) Figure 7 The first connecting plate 74 has a pair of connecting plates at both ends of the first blade plate 72 along the length direction l+ and l-. (Refer to...) Figure 8 The first connecting plate 74 is formed by protruding from the two ends of the first blade plate 72 in the length direction l+ and l- towards the upper side in the height direction h+ and h-.

[0125] Reference Figure 8 The first connecting plate 74 is formed facing the inner wall 38 of the outer casing 10, which is connected to the first connecting member 100 and the second connecting member 120. The first connecting plate 74 is formed protruding from behind the first blade plate 72 in the width direction w+, w- and upward in the height direction h+, h-.

[0126] Reference Figure 8 The first connecting plate 74 has a first connecting hole 74a that is rotatably connected to the first connecting member 100, and a second connecting hole 74b that is rotatably connected to the second connecting member 120. (Refer to...) Figure 8The first connecting hole 74a is disposed above the second connecting hole 74b in the height direction h+, h-. The first connecting hole 74a is disposed behind the second connecting hole 74b in the width direction w+, w-.

[0127] The distance 74ah between the center 74ac of the first connecting hole 74a and the upper side of the first blade plate 72 in the height direction h+, h- is greater than the distance 74bh between the center 74bc of the second connecting hole 74b and the upper side of the first blade plate 72 in the height direction h+, h-.

[0128] The first connecting plate 74 may include: an outer plate 75a having a first connecting hole 74a and a second connecting hole 74b; an inner plate 75b spaced apart from the outer plate 75a; and a peripheral plate 75c connecting the peripheries of the outer plate 75a and the inner plate 75b. When the fixing protrusion 109 of the first connector 100 (described later) and the second connecting protrusion 126 of the second connector 120 are fixed to the first connecting plate 74, the respective ends of the fixing protrusion 109 and the second connecting protrusion 126 can be disposed between the outer plate 75a and the inner plate 75b. This structure can stably maintain the state in which the fixing protrusion 109 and the second connecting protrusion 126 are respectively connected to the first connecting plate 74.

[0129] The first connecting hole 74a and the second connecting hole 74b are formed on the outer side plate 75a of the first connecting plate 74. Here, the outer side plate 75a can indicate a direction toward the inner side wall 38 of the housing 10.

[0130] Reference Figure 7 A first support plate 76 is disposed between a pair of first connecting plates 74. The first support plate 76 protrudes from the upper surface of the first blade plate 72 toward the upper side in the height direction h+, h-. The first support plate 76 is rotatably connected to the auxiliary connector 140, and the auxiliary connector 140 is rotatably connected to the support member 50. When viewed from the side, the auxiliary connector 140 can perform the same actions as the second connector 120.

[0131] Reference Figure 7 The first support plates 76 can be configured as a pair spaced apart at a predetermined interval in the left-right direction with the first blade plate 72 as the center. The distance 76L between the pair of first support plates 76 can be formed to be 1 / 4 to 1 / 2 of the length 70L formed by the first blade 70 along the length direction l+ and l-. Preferably, the distance 76L between the pair of first support plates 76 can be formed to be 1 / 3 of the length 70L formed by the first blade 70 along the length direction l+ and l-.

[0132] A third connection hole 76a is formed in the first support plate 76 so as to be rotatably connected to the auxiliary connector 140. When viewed from the side, the third connection hole 76a can be configured in the same way as the second connection hole 74b.

[0133] Reference Figure 8 The length 70w (“width of the first blade”) formed by the first blade 70 along the width direction w+ and w- can be two to three times the length 74w (“width of the first connecting plate”) formed by the first connecting plate 74 along the width direction w+ and w-.

[0134] Reference Figure 2 One side of the second blade 80 is connected to the inner wall 38 of the outer casing 10, and the other side is connected to the inner wall 38 of the outer casing 10 via the third connector 130. The second blade 80 rotates with the third connector 130 moving, with the side rotatably connected to the outer casing 10 as a reference.

[0135] Reference Figure 9 The second blade 80 includes: a second blade plate 82 for adjusting the direction of air discharged from the outlet 24; a second connecting plate 84 extending at both ends l+ and l- along the length direction of the second blade plate 82 in a direction parallel to the inner sidewall 38; a first protrusion 86 protruding from the second connecting plate 84 toward the inner sidewall 38 and rotatably connecting the second blade plate 82 to the housing 10; and a second protrusion 88 spaced apart from the first protrusion 86, protruding from the second connecting plate 84 toward the inner sidewall and rotatably connecting to the third connector 130.

[0136] The second blade 82 is positioned closer to the air supply fan 26 than the first blade 72. The width 82w formed by the second blade 82 in the front-to-back direction is smaller than the width 72w formed by the first blade 72 in the front-to-back direction.

[0137] Reference Figure 11a The second blade plate 82 has a downwardly protruding curved portion 83. The curved portion 83 is included in the portion of the second blade plate 82 where the upper plate 82a and the lower plate 82b connect. The upper plate 82a and the lower plate 82b can have a generally straight plate shape. The included angle between the upper plate 82a and the lower plate 82b can be formed as an obtuse angle that does not significantly change the direction of airflow.

[0138] Reference Figure 11b In another embodiment, the second blade plate 82 can be formed with a downwardly convex curved surface. In this case, the radius of curvature of the second blade plate 82 can be smaller than the radius of curvature of the first blade plate 72.

[0139] Reference Figure 11aA pair of second connecting plates 84 are provided at both ends of the second blade plate 82, protruding downwards in the height directions h+ and h-. The second connecting plates 84 are configured to face the inner sidewall 38 of the outer casing 10. The second connecting plates 84 extend backwards in the width directions w+ and w- and downwards in the height directions h+ and h- of the second blade plate 82. A first protrusion 86 and a second protrusion 88 are provided on the second connecting plates 84.

[0140] The second blade 80 can rotate with the second protrusion 88 as the first protrusion 86 moves, thereby causing the air discharged from the outlet 24 to flow toward the upper or lower surface of the first blade 70.

[0141] The first protrusion 86 may be configured with a spacer plate 87 that holds the inner sidewall 38 and the second blade 80 apart.

[0142] Reference Figure 11a The second protrusion 88 is configured to be closer to the second blade plate 82 than the first protrusion 86. The first protrusion 86 is positioned behind the second protrusion 88 in the width direction w+, w-. The distance 86ah between the center 86a of the first protrusion 86 and the second blade plate 82 can be greater than the distance 88ah between the center 88a of the second protrusion 88 and the second blade plate 82.

[0143] Reference Figure 2 The second protrusion 88 is located on the inner sidewall 38 at a position below the center 100a of the rotating plate 102 of the first connector 100 (described later). The second protrusion 88 is located on the inner sidewall 38 at a position below the first connecting protrusion 124 of the second connector 120 (described later).

[0144] Reference Figure 2 The second protrusion 88 is located on the inner wall 38 at the center 100a of the rotating plate 102, or one end of the second connector 120 is located behind the inner wall 38.

[0145] The second blade plate 82 is disposed on the discharge flow path 30a formed inside the housing 10. (Refer to...) Figures 20 to 22 The second blade plate 82 can direct the air flowing through the discharge flow path 30a to either the upper or lower surface of the first blade plate 72.

[0146] The first blade 70 is connected to the outer casing 10 via a first connector 100 and a second connector 120. The second blade 80 is connected to the first connector 100 via a third connector 130.

[0147] Reference Figure 10The second blade 80 includes an auxiliary connector 90 disposed between a pair of second connecting plates 84 and rotatably connected to the second connector 54. The auxiliary connector 90 includes a third protrusion 92 projecting inwardly from its end, extending downwardly from the lower surface of the second blade 80. Here, "inwardly" can refer to a direction toward the center of the second blade plate 82 in a left-right direction.

[0148] The third protrusion 92 disposed on the auxiliary connector 90 can be disposed in the same position as the first protrusion 86 disposed on the second connecting plate 84. Here, the third protrusion 92 and the first protrusion 86 being disposed in the same position can indicate the overlapping position when viewed from the side.

[0149] The first connector 100 is rotatably connected to the housing 10. (See reference...) Figure 12 The first connector 100 includes: a rotating plate 102, which is rotatably disposed on the inner sidewall 38 of the housing 10; and a fixed connector 108, which is disposed at a predetermined interval from the center 100a of the rotating plate 102 and extends radially outward from the rotating plate 102.

[0150] The first connector 100 includes a connecting protrusion 110 that is spaced apart from the center 100a of the rotating plate 102 at a predetermined interval and protrudes from one side of the rotating plate 102 to connect with the third connector 130 described later.

[0151] Reference Figure 13 The first connecting member 100 includes: a rotating shaft portion 104, which protrudes from the center 100a of the rotating plate 102 in a lateral direction to form a rotating shaft of the rotating plate 102; and inner stops 106a and 106b, which protrude from the rotating plate 102 in the direction of forming the rotating shaft portion 104 to restrict the rotation of the rotating plate 102.

[0152] Reference Figure 12 In the rotating plate 102, a fixing connector 108 and a connecting protrusion 110 are arranged on the side facing the first blade 70. The rotating plate 102 has a disc shape. The rotating plate 102 is rotatably mounted on the rotation guide portion 40 formed on the inner sidewall 38 of the housing 10.

[0153] Reference Figure 13 A rotating shaft portion 104 and inner stops 106a and 106b are provided on the other side of the rotating plate 102 facing the inner wall 38.

[0154] The fixed connector 108 is fixedly disposed on the rotating plate 102. Therefore, when the rotating plate 102 rotates about the rotating shaft 104, the fixed connector 108 rotates together with the rotating plate 102. The fixed connector 108 may have a curved shape. In the fixed connector 108, a curved portion is formed between the end connected to the rotating plate 102 and the other end connected to the first blade 70. (Refer to...) Figure 12 The fixed connector 108 has approximately The shape of the character is curved.

[0155] Reference Figure 12 A fixing protrusion 109 is formed at the end of the fixing connector 108, protruding to one side for connection with the first blade 70. The fixing protrusion 109 has a hook shape. The fixing protrusion 109 is rotatably disposed in the first connecting hole 74a formed in the first connecting plate 74 of the first blade 70.

[0156] The connecting protrusions 110 are arranged at predetermined intervals from the center 100a of the rotating plate 102. The connecting protrusions 110 are configured to be closer to the outer periphery than the center 100a of the rotating plate 102. (Refer to...) Figure 12 The connecting protrusion 110 can be configured to form a phase difference θL1 of more than 100 degrees with respect to the center 100a of the rotating plate 102 and the fixed protrusion 109. (Refer to...) Figure 12 The connecting protrusion 110 can be configured to form a phase difference θL2 of more than 150 degrees with one end of the fixed connector 108 disposed on the rotating plate 102.

[0157] The connecting protrusion 110 is rotatably connected to the third connector 130, which will be described later. The connecting protrusion 110 may be provided with an end protrusion 112 extending radially from one side of its circumferential surface, so that the third connector 130 will not detach from the connecting protrusion 110. The end protrusion 112 protrudes radially from the end of the connecting protrusion 110, thereby preventing the third connector 130 from detaching from the connecting protrusion 110.

[0158] Reference Figure 13 The first connecting member 100 includes: a rotating shaft portion 104, which protrudes from the center of the rotating plate 102 toward one side to form the rotating shaft of the rotating plate 102; and inner stops 106a and 106b, which protrude from the rotating plate 102 toward the direction in which the rotating shaft portion 104 is formed to restrict the rotation of the rotating plate 102.

[0159] Inner stops 106a and 106b can protrude from the other side of the rotating plate 102 and contact the inner protrusion 44 disposed on the rotation guide portion 40, limiting the rotation range of the first connecting member 100. (See reference...) Figure 13The inner stops 106a and 106b may include: a first inner stop 106a, which protrudes radially outward from the rotating shaft portion 104; and a second inner stop 106b, which is circumferentially spaced from the first inner stop 106a and protrudes radially outward from the rotating shaft portion 104.

[0160] Considering the rotation range of the first connector 100, the first inner stop 106a and the second inner stop 106b are arranged circumferentially apart.

[0161] The rotating shaft 104 is configured to extend through the inner sidewall 38 and is connected to the motor 60 at its end. The rotating shaft 104 can be rotated by the motor 60, thereby causing the first connecting member 100 to rotate.

[0162] One end of the second connector 120 is rotatably connected to the housing 10, and the other end is rotatably connected to the first blade 70. One end of the second connector 120 is connected to the inner sidewall 38 of the housing 10. The other end of the second connector 120 is connected to the first connecting plate 74 of the first blade 70.

[0163] Reference Figure 2 One end of the second connector 120 is disposed on the upper side of the discharge port 24. The second connector 120 is disposed on the upper front end of the inner sidewall 38.

[0164] Reference Figure 14 The second connector 120 includes: a second connecting rod 122; a first connecting protrusion 124 disposed at one end of the second connecting rod 122 and protruding toward the inner sidewall 38; and a second connecting protrusion 126 disposed at the other end of the second connecting rod 122 and protruding toward the second connecting plate 84.

[0165] The first connecting protrusion 124 has a hook shape and is rotatably fixed to the inner sidewall 38. The second connecting protrusion 126 has a hook shape and is rotatably fixed to the second connecting plate 84. (Refer to...) Figure 14 The first connecting protrusion 124 and the second connecting protrusion 126 protrude in different directions from each other.

[0166] One end of the third connector 130 is rotatably connected to the first connector 100, and the other end is rotatably connected to the second blade 80. (Refer to...) Figure 15 The third connector 130 has a first connector hole 134 at one end that connects to the connecting protrusion 110 of the first connector 100, and a second connector hole 136 at the other end that connects to the second protrusion 88 of the second blade 80. The third connector 130 rotates the second blade 80 by rotating the first connector 100.

[0167] The first connector 100 may be configured to have a different length than the second connector 120. (Refer to...) Figure 19 The distance 100L (length of the first connector) from the rotation center 100a of the first connector 100 to the center 109a of the fixed protrusion 109 connected to the first blade 70 is less than the distance 120L (length of the second connector) from the center 124a (rotation center of the second connector) of the first connecting protrusion 124 of the second connector 120 to the center 126a of the second connecting protrusion 126. The length 120L of the second connector is greater than the distance 74D between the center 74ac of the first connecting hole 74a and the center 74bc of the second connecting hole 74b of the first blade 70. The length 100L of the first connector can be the distance from the rotation axis 100a of the first connector 100 to the end of the first connector 100 connected to the first blade 70.

[0168] Reference Figure 19 The rotation center 124a of the second connector 120 is positioned in front of the upper guide 36 of the inner frame 34. (See reference...) Figure 19 The rotation center 124a of the second connector 120 is disposed on a virtual line IL extending forward from the upper guide 36 of the inner frame 34.

[0169] Reference Figure 19 The distance L1 from the rotation center 100a of the first connector 100 to the center 124a of the first connecting protrusion 124 of the second connector 120 is greater than the distance 74D from the center 74ac of the first connecting hole 74a of the first blade 70 to the center 74bc of the second connecting hole 74b. The distance L1 from the rotation center 100a of the first connector 100 to the center 124a of the first connecting protrusion 124 of the second connector 120 is greater than the length 100L of the first connector 100.

[0170] Reference Figure 16 The air conditioner 1 of the present invention includes: a pair of auxiliary connectors 140 connecting a first connector 52 and a first blade 70; and a connecting rod 150 spaced apart from the first blade 70 in the height direction h+ and h-, so that the pair of auxiliary connectors 140 are connected to each other.

[0171] The auxiliary connector 140 can be formed in the same size as the second connector 120. (See reference...) Figure 16 and Figure 18 The auxiliary connector 140 includes: an auxiliary link 142; a first auxiliary protrusion 144 disposed at one end of the auxiliary link 142 and rotatably fixed to the first connector hole 52a of the first connector 52; and a second auxiliary protrusion 146 disposed at the other end of the auxiliary link 142 and rotatably fixed to the third connection hole 76a formed in the first support plate 76 of the first blade 70.

[0172] Reference Figure 18 A first auxiliary protrusion 144 and a second auxiliary protrusion 146 are formed on the same surface of the auxiliary connecting rod 142. A first fastening portion 148 is formed on the auxiliary connecting rod 142, between the first auxiliary protrusion 144 and the second auxiliary protrusion 146, and is configured to be fastened to the connecting rod 150. The first fastening portion 148 has a first fastening groove 148a, which is configured to allow a portion of the connecting rod 150 to be inserted at the portion that contacts the connecting rod 150. The first fastening portion 148 may include a first fastening protrusion 149 protruding downward from the upper outer side of the first fastening groove 148a. The first fastening protrusion 149 can securely insert the connecting rod 150 into the first fastening groove 148a.

[0173] Reference Figure 17 The connecting rod 150 is inserted into a first fastening groove 148a formed in each of the pair of auxiliary connectors 140. The connecting rod 150 includes a second fastening portion 152, which forms a second fastening groove 152a recessed in such a way as to fasten to the first fastening portion 148 of each of the pair of auxiliary connectors 140. The second fastening portion 152 includes a second fastening protrusion 154 protruding upward from the periphery of the second fastening groove 152a.

[0174] The first fastening protrusion 149 has a hook shape and can keep the connecting rod 150 fastened to the auxiliary connector 140 by contacting the second fastening protrusion 154.

[0175] Below, refer to Figures 19 to 22 This describes the position of the blades in operation of the connector according to the present invention.

[0176] Reference Figure 19 When the air conditioner is not running (hereinafter referred to as "reference position P0"), the first blade 70 is configured to close the discharge outlet 24 of the housing 10. Reference position P0 is the state where the motor is not running, and it is also the state where the discharge outlet 24 of the housing 10 is closed by the first blade 70. In reference position P0, the first blade 70 is configured to cover the discharge outlet 24, and the second blade 80 is configured on the discharge flow path 30a.

[0177] Reference Figure 19 At reference position P0, the first connector 100 and the second connector 120 are disposed on the discharge flow path 30a. At reference position P0, the third connector 130 is disposed on the upper side of the fixed connector 108.

[0178] Reference Figure 20The first blade 70 and the second blade 80 are configured to discharge air through the outlet 24 at a first position P1 over a long distance. The first position P1 is where the first blade 70 and the second blade 80 are configured to discharge air through the outlet 24 over a long distance in a horizontal direction via the second blade 80 and the first blade 70. When the air conditioner 1 is in cooling mode and configured at the first position P1, it can rapidly reduce the temperature of the indoor space.

[0179] Reference Figure 20 In the first position P1, the front end 70a of the first blade 70 is positioned in front of the front wall 14 of the housing 10. The rear end 70b of the first blade 70 is positioned at the discharge port 24. Therefore, the air discharged through the discharge port 24 can flow along the upper surface of the first blade plate 72 and flow in the forward direction.

[0180] The angle formed between the tangent extending from the rear end 70b of the first blade 70 and the horizontal line. ("the rear end angle of the first blade") can be formed to be the angle with the lower guide member. The difference is within 30 degrees. At this time, the air flowing along the lower guide 32 can utilize the Coanda effect to flow forward along the lower surface of the first blade 70. This can make the airflow direction of the air discharged through the discharge port 24 flow forward, increase the air volume of the air discharged forward, and allow the air discharged from the air conditioner 1 to be discharged over a long distance.

[0181] Reference Figure 20 At the first position P1, the angle θv1 (“first blade angle”) formed by the virtual line connecting the two ends of the first blade 70 and the horizontal line is smaller than the angle formed by the upper guide 36 and the horizontal line. ("Upper guide angle") or the angle formed by the lower guide 32 and the horizontal line (“Lower guide angle”). Here, the horizontal line can represent any line parallel to the ground or ceiling.

[0182] Reference Figure 20 In the first position P1, the central portion 70c of the first blade 70 in the width direction can be configured to be lower than the front end 70a or the rear end 70b of the first blade 70.

[0183] Reference Figure 20 In the first position P1, the rear end 70b of the first blade 70 can be positioned at or in front of the discharge port 24. In the first position P1, the rear end 70b of the first blade 70 can be positioned closer to the lower end of the discharge port 24 than the upper end. Therefore, air flowing along the discharge path 30a can flow to the outside along the upper surface of the first blade 70.

[0184] Reference Figure 20 In the first position P1, the second blade 80 is positioned above the first blade 70. The second blade 80 can guide the airflow in the discharge path 30a toward the first blade 70. In the first position P1, the front end 80a of the second blade 80 can be positioned higher than the rear end 70b of the first blade 70. In the first position P1, the front end 80a of the second blade 80 can be positioned facing the upper surface of the first blade 70.

[0185] Reference Figure 20 At the first position P1, the angle formed between the tangent at the rear end 80b of the second blade 80 and the horizontal line. ("the rear angle of the second blade") can be greater than the angle of the upper guide member. Reference Figure 20 At the first position P1, the rear angle of the second blade It can be less than or equal to the angle of the lower guide member.

[0186] Reference Figure 22 In the second position P2, where the first blade 70 has rotated to its maximum rotation, the rear end 70b of the first blade 70 can be positioned between the curved surfaces of the fixed connector 108. The second position P2 can be the state where the first connector 100 has rotated to its maximum rotation from the reference position P0. In the second position P2, the rear end 70b of the first blade 70 can contact the first connector 100.

[0187] In the second position P2, since the first blade angle θv1 and the second blade angle θv2 are at their maximum, the air discharged through the discharge port 24 can flow downwards. Therefore, the second position P2 can be used in the heating mode where heated air is discharged.

[0188] Reference Figure 22 In the second position P2, the rear end 70b of the first blade 70 is positioned inside the discharge flow path 30a. In the second position P2, the rear end 70b of the first blade 70 can be positioned closer to the upper guide 36 than the lower guide 32. Therefore, air flowing along the discharge flow path 30a can flow towards the discharge outlet along the rear of the first blade 70. In the second position P2, the rear end 70b of the first blade 70 can be positioned higher than the rear end 80b of the second blade 80.

[0189] Reference Figure 22 At the second position P2, the distance D1 between the rear end 70b of the first blade 70 and the outlet 24 in the direction forming the discharge flow path 30a is greater than the distance D2 between the rear end 70b of the second blade 80 and the outlet 24 in the direction forming the discharge flow path 30a.

[0190] Reference Figure 22 At the second position P2, the second blade 80 is positioned above the lower guide 32. Because the second blade 80 has a curved shape, its placement at the second position P2, spaced apart from the lower guide 32, ensures sufficient space for airflow between the second blade 80 and the lower guide 32.

[0191] Reference Figure 21 The third position P3 can be a position between the first position P1 and the second position P2. That is, as the first connector 100 rotates, the first blade 70 and the second blade 80 at the first position P1 can move to the second position P2 via the third position P3.

[0192] At the third position P3, the first blade angle θv1 can be configured to be relative to the lower guide angle. Roughly parallel. At the third position P3, the first blade angle θv1 and the lower guide angle are approximately parallel. The difference can be formed within a range of 5 degrees.

[0193] In the third position P3, the distance D3 between the rear end 70b of the first blade 70 and the upper guide 36 is less than or equal to the distance D4 between the rear end 70b of the first blade 70 and the lower guide 3. In the third position P3, the distance D3 between the rear end 70b of the first blade 70 and the upper guide 36 can be formed to be 1 to 1.2 times the distance D4 between the rear end 70b of the first blade 70 and the lower guide 32.

[0194] Reference Figure 21 In the third position P3, the rear end 70b of the first blade 70 is positioned on the discharge flow path 30a. In the third position P3, the rear end 70b of the first blade 70 can be positioned higher than the rear end 80b of the second blade 80.

[0195] At the third position P3, the angle formed by the tangent at the leading end 80a of the second blade 80. It can be configured to be approximately parallel to the first blade angle θv1. At the third position P3, the angle formed by the tangent at the leading end 80a of the second blade 80. The difference between the first blade angle θv1 and the first blade angle can be within a range of 5 degrees.

[0196] In the third position P3, the first blade 70 can be configured to be approximately parallel to the lower guide 32 and positioned at the center of the discharge port 24, maximizing the airflow towards the discharge port 24. Therefore, the airflow towards the lower front side of the discharge path 30a can be maximized. When the air conditioner 1 is operating in heating mode, the first blade 70 and the second blade 80 are configured in the third position P3, thereby enabling rapid changes in the indoor temperature.

[0197] Reference Figures 19 to 22 As the first blade 70 and the second blade 80 move from the reference position P0 toward the second position P2, the angle θ11 (“first connection angle”) formed between the line L1 connecting the rotation center 100a of the first connector 100 and the center 124a of the first connecting protrusion 124 of the second connector 120 and the line 100L connecting the rotation center 100a of the first connector 100 and the center 109a of the fixed protrusion 109 of the first connector 100 gradually decreases.

[0198] Reference Figures 19 to 22 As the first blade 70 and the second blade 80 move from the reference position P0 toward the second position P2, the angle θ12 (“first blade-first connection angle”) formed between the line connecting the rotation center of the first connector 100 and the center of the fixed protrusion 109 of the first connector 100 and the line connecting the center of the fixed protrusion 109 of the first connector 100 and the center of the second connecting protrusion 126 of the second connector 120 gradually increases.

[0199] Reference Figures 19 to 22 As the first blade 70 and the second blade 80 move from the reference position P0 toward the second position P2, the angle θ21 (“third connection angle”) formed between the line connecting the center of the first connector hole 134 of the third connector 130 and the center of the second connector hole 136 of the third connector 130 and the line connecting the center of the second connector hole 136 of the third connector 130 and the first protrusion 86 of the second blade 80 gradually decreases.

[0200] Reference Figures 19 to 22 As the first blade 70 and the second blade 80 move from the reference position P0 toward the second position P2, the distance L2 between the center of the first connecting hole 134 of the third connecting member 130 and the first protrusion 86 of the second blade 80 gradually decreases.

[0201] Reference Figure 19 and Figure 23 When the first blade 70 closes the discharge outlet 24, the first blade 70 can first contact the first stop 62. (Refer to...) Figure 23 The first blade plate 72 can initially contact the first stop member 62 in the width direction. (Refer to...) Figure 23When the first blade 70 contacts the first stop 62, the second stop 64 is not in contact with the first blade 70. Furthermore, when the first blade 70 contacts the first stop 62 but not the second stop 64, the first inner stop 106b does not contact the inner protrusion 44. However, as... Figure 19 As shown, when the first inner stop 106b contacts the inner protrusion 44, the first blade 70 can contact the second stop 64.

[0202] Reference Figure 23 When the first blade 70 contacts the first stop 62, the connection centers 74a and 109a of the first connector 100 and the first blade 70 are positioned lower than the rotation center 100a of the first connector 100. (Refer to...) Figure 23 When the first connector 100 rotates to close the discharge port 24 with the first blade 70, the first connector 100 causes the first blade 70 to move backward.

[0203] Reference Figure 23 When the first blade 70 contacts the first stop 62, the rotation center 100a of the first connector 100 is positioned closer to the second stop 64 than the first stop 62. When the first blade 70 contacts the first stop 62, the connection centers 74a and 109a of the first connector 100 and the first blade 70 are positioned further rearward than the virtual line connecting the rotation center 100a of the first connector 100 and the second stop 64. With this structure, the rearward side of the first blade 70 in the width direction can be easily moved when the first blade 70 is in contact with the first stop 62.

[0204] Reference Figure 23 When the first blade 70 contacts the first stop 62, the connection centers 74b and 124a of the second connector 120 and the first blade 70 are configured to be closer to the second stop 64 than the first stop 62.

[0205] Reference Figure 23 When the first blade 70 contacts the first stop 62, the fixed connector 108 protrudes toward the first blade plate 72.

[0206] The preferred embodiments of the present invention have been shown and described above, but the present invention is not limited to the specific embodiments described above. Various modifications can be made by those skilled in the art without departing from the spirit of the invention as claimed in the claims, and these modifications cannot be understood solely from the technical concept or prospect of the present invention.

Claims

1. An air conditioner, wherein, include: The outer casing has an inlet, an outlet, and an outlet flow path, with the outlet formed below the inlet and the outlet flow path guiding air to flow towards the outlet. An air supply fan is disposed inside the housing to create an airflow from the intake port toward the exhaust port; The first blade either closes the outlet or guides the air expelled from the outlet. The second blade guides the air flowing in the discharge path; The first connector is rotatably mounted on one side of the housing and connected to one side of the first blade. The second connector is rotatably mounted on the other side of the housing and connected to the other side of the first blade. The third connector is rotatably connected to the first connector to change the position of the second blade; as well as A motor, fixedly mounted on the housing, causes the first connector to rotate; If the first blade is positioned in a first position to guide the air expelled from the outlet forward, then the front end of the first blade is forward of the front wall of the housing.

2. The air conditioner according to claim 1, wherein, The second blade is rotatably disposed in the discharge flow path. In the first position, the front end of the second blade is positioned above the rear end of the first blade.

3. The air conditioner according to claim 1, wherein, The second blade is rotatably disposed in the discharge flow path. In the first position, the second blade is located above the first blade and is configured to be more inclined than the first blade.

4. The air conditioner according to claim 1, wherein, The first blade has a curved surface that convexes downwards. In the first position, the front and rear ends of the first blade are configured to be higher than the central portion of the first blade.

5. The air conditioner according to claim 1, wherein, It also includes an upper guide disposed on the upper side of the discharge flow path and a lower guide disposed on the lower side of the discharge flow path. In the first position, the rear end of the first blade is disposed at the discharge port, and the angle formed by the tangent extending from the rear end of the first blade and the horizontal line has a difference of less than 30 degrees from the angle formed by the lower guide and the horizontal line.

6. The air conditioner according to claim 1, wherein, It also includes an upper guide disposed on the upper side of the discharge flow path and a lower guide disposed on the lower side of the discharge flow path. The second connector is closer to the discharge port and closer to the upper guide than the first connector. The distance between the rotation axis of the first connector and the rotation axis of the second connector is greater than the distance from the rotation axis of the first connector to the end of the first connector that is connected to the first blade.

7. The air conditioner according to claim 6, wherein, The second connector is located behind the first blade in the width direction and is rotatably connected to the first blade.

8. The air conditioner according to claim 7, wherein, The length of the second connector is greater than the distance from the rotation axis of the first connector to the end of the first connector that is connected to the first blade.

9. The air conditioner according to claim 6, wherein, The second connector is rotatably configured on the housing on a virtual line extending from the upper guide.

10. The air conditioner according to claim 1, wherein, The first blade includes: A first blade plate is configured to cover a portion of the discharge port, or to guide air discharged from the discharge port; and A first connecting plate protrudes from both ends of the first blade plate and is rotatably connected to the first connecting member and the second connecting member.

11. The air conditioner according to claim 10, wherein, The first connecting plate has a first connecting hole and a second connecting hole. The first connecting member is rotatably connected to the first connecting hole, and the second connecting member is rotatably connected to the second connecting hole. The distance between the first connecting hole and the first blade plate in the height direction is greater than the distance between the second connecting hole and the first blade plate in the height direction.

12. The air conditioner according to claim 1, wherein, The first connector includes: A rotating plate, rotatably disposed within the housing; and The fixed connectors are arranged at predetermined intervals from the center of the rotating plate and extend radially outward from the rotating plate.

13. The air conditioner according to claim 12, wherein, The fixed connector is bent such that the rear end of the first blade is positioned between the rotation center of the rotating plate and the connecting end of the fixed connector.

14. The air conditioner according to claim 13, wherein, At the second position where the first blade rotates to its maximum, the rear end of the first blade is positioned between the curved surfaces of the fixed connector.

15. The air conditioner according to claim 12, wherein, It also includes an inner frame, which comprises: Upper guide wall, disposed on the upper side of the discharge flow path; and A pair of inner sidewalls extend downward from both ends of the upper guide wall, and the first connector and the second connector are connected to the pair of inner sidewalls.

16. The air conditioner according to claim 15, wherein, The inner sidewall includes a rotation guide portion, which forms an insertion slot for the rotating plate to be inserted, such that the first connector is rotatably disposed in the rotation guide portion.

17. The air conditioner according to claim 12, wherein, The first connector includes: A rotating shaft portion protrudes to one side from the center of the rotating plate and is connected to the motor to form the rotating shaft of the rotating plate; and An inner stop protrudes from the rotating plate toward the forming direction of the rotating shaft portion, thereby restricting the rotation of the rotating plate.

18. The air conditioner according to claim 16, wherein, It also includes an upper guide disposed on the upper side of the discharge flow path and a lower guide disposed on the lower side of the discharge flow path; The inner frame includes support members. The support member is disposed between a pair of inner sidewalls at both ends of the upper guide member, supporting the movement of the first blade or the second blade.

19. The air conditioner according to claim 18, wherein, include: A pair of auxiliary connectors connect the support member and the first blade; as well as A connecting rod, spaced laterally from the first blade in the height direction, connects each of the pair of auxiliary connecting members. The center of the auxiliary connector connected to the support is configured to be the same as the rotation center of the second connector.

20. The air conditioner according to claim 18, wherein, The second blade includes an auxiliary connector that connects the support member and the second blade. The connection center of the auxiliary connector and the support is configured to be the same as the rotation center of the second blade.

21. The air conditioner according to claim 1, wherein, The second blade includes: The second blade plate adjusts the direction of the air discharged from the outlet. The second connecting plate extends perpendicularly from both ends of the second blade plate along its length. The first protrusion allows the second blade plate to be rotatably connected to the housing; and The second protrusion, spaced apart from the first protrusion, protrudes from the second connecting plate and is rotatably connected to the third connecting member.

22. The air conditioner according to claim 21, wherein, The first connector includes: A rotating plate, rotatably disposed within the housing; and Fixed connectors are arranged at predetermined intervals from the center of the rotating plate and extend radially outward from the rotating plate; The second connecting plate extends toward the lower side of the second blade plate, and the first protrusion is located on the lower side than the center of the rotating plate.

23. An air conditioner, wherein, include: The outer casing has an intake port and an outlet port formed below the intake port; An air supply fan is disposed inside the housing to create an airflow from the intake port toward the exhaust port; The discharge guide forms a discharge flow path that guides the air flowing by the blower fan toward the front and lower side, and the discharge outlet is formed at the downstream end of the discharge flow path. The first blade either closes the outlet or guides the air expelled from the outlet. The first connector is rotatably mounted on one side of the housing and connected to one side of the first blade. The second connector is rotatably mounted on the other side of the housing and connected to the other side of the first blade. as well as A motor, fixedly mounted on the housing, causes the first connector to rotate; The second connector is positioned at the upper end of the discharge flow path closer to the discharge port than the first connector. The distance between the rotation axis of the first connector and the rotation axis of the second connector is greater than the distance from the rotation axis of the first connector to the end of the first connector that is connected to the first blade.

24. An air conditioner, wherein, include: The outer casing has an intake port and an outlet port formed below the intake port; An air supply fan is disposed inside the housing to create an airflow from the intake port toward the exhaust port; The ejector guide forms an ejection flow path that guides the airflow using the blower fan, and has the ejection outlet. The first blade either closes the outlet or guides the air expelled from the outlet. The second blade guides the air flowing in the discharge path; The first connector, connected to one side of the first blade, includes a circular rotating plate and a fixed connector extending outward from the rotating plate; The second connector is connected to the other side of the first blade; The third connector is rotatably connected to the first connector to change the position of the second blade; as well as A motor causes the first connector to rotate; The ejection guide includes an inner frame, the inner frame including a pair of inner sidewalls connected to the first connector and the second connector. The inner frame includes a circular insertion slot for inserting the first connector.

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