KR20230158954A - Air conditioner - Google Patents

Abstract

This disclosure relates to air conditioners. An air conditioner according to an aspect of the present disclosure includes a case formed with an intake port and an discharge port; a fan rotatably disposed inside the case and having blades extending in the direction of the rotation axis and a plurality of connection plates spaced apart in the direction of the axis of rotation; and a stabilizer disposed on a downstream side of the fan, wherein the stabilizer includes: a body facing the discharge port; and a plurality of protrusions that protrude from the body and are spaced apart from each other in the direction of the rotation axis of the fan, thereby reducing noise.

Description

Air conditioner {AIR CONDITIONER}

The present disclosure relates to an air conditioner, and more specifically, to an air conditioner equipped with a cross-flow fan.

An air conditioner is a device that cools, heats, or purifies sucked indoor air and supplies it indoors.

An air conditioner is installed on a window and can suck in indoor air, exchange heat with it, supply it indoors, and suck in outdoor air, exchange heat with it, and then discharge it outdoors. In the case of such a window-type air conditioner, an indoor fan through which indoor air flows and an indoor heat exchanger are disposed on the indoor side of the case, and an outdoor fan through which outdoor air flows and an outdoor heat exchanger are disposed on the outdoor side of the case.

In the case of air conditioners installed in windows, cross-flow fans are often used as the type of fan due to the internal flow path structure of the case. Inside the air conditioner case, an air flow path extending along the rotation direction of the cross-flow fan is formed, and the air blown by the cross-flow fan flows along the rotation direction of the fan and is discharged to the outside of the case.

However, the conventional air conditioner had a problem in that axial flow occurred in the area near the main plate of the cross-flow fan, and noise and resistance were generated due to the axial flow.

Korean Patent Document 10-2019-0133477 Korean Patent Document 10-2019-0078874

The present disclosure aims to solve the above-described problems and other problems.

Another purpose of the present disclosure may be to provide an air conditioner with improved blowing performance.

Another purpose of the present disclosure may be to provide an air conditioner with reduced noise.

Another purpose of the present disclosure may be to provide an air conditioner with improved energy efficiency.

Another purpose of the present disclosure may be to provide an air conditioner with a simplified flow path structure.

Another purpose of the present disclosure may be to provide an air conditioner in which air flow is guided to an outlet.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

An air conditioner according to an aspect of the present disclosure for achieving the above-described object includes a case in which an inlet and an outlet are formed.

The air conditioner includes a fan rotatably disposed inside the case.

The fan includes blades extending in the direction of the rotation axis.

The fan includes a plurality of connection plates spaced apart in the direction of the rotation axis.

The air conditioner includes a stabilizer disposed downstream of the fan.

The stabilizer includes a body facing the discharge port.

The stabilizer includes a protrusion protruding from the body.

The protrusions are spaced apart from each other in the direction of the rotation axis of the fan.

The protrusion may include a first protrusion facing the fan.

The protrusion may include a second protrusion facing the discharge hole.

The first protrusions and the second protrusions may be alternately arranged in the direction of the rotation axis of the fan.

The first protrusion may be formed at a position corresponding to the plurality of connection plates.

The first protrusion may include a first protrusion extension extending in a direction away from the fan.

The first protrusion may include a first protrusion front surface facing the fan and connected to the first protrusion extension.

The first protrusion may become wider as it moves away from the fan.

The second protrusion may be formed at a corresponding position between the plurality of connection plates.

The second protrusion may include a second protrusion extension extending in a direction away from the fan.

The second protrusion may include a second protrusion left side connected to one side of the second protrusion extension.

The second protrusion may include a second protrusion right side connected to the other side of the second protrusion extension.

The width of the second protrusion may become narrower as it moves away from the fan.

The body may include a first guide wall facing the fan.

The body may include a second guide wall extending from the first guide wall toward the discharge port.

The body may include a bent portion connecting the first guide wall and the second guide wall.

The first protrusion may protrude from the first guide wall toward the fan.

The first protrusion may extend toward the bent portion.

The second protrusion may protrude from the second guide wall toward the discharge port.

The second protrusion may extend from the bent portion toward the second guide wall.

The body may include a bending guide wall extending from the second guide wall.

The air conditioner may include a vane rotatably disposed at the discharge port.

The gap between the body and the vane may widen toward the downstream side.

The vane may be disposed downstream of the second protrusion.

The vane may face the second protrusion.

The air conditioner may include a discharge guide disposed at the discharge port.

The discharge guide may be disposed downstream of the second protrusion.

The discharge guide may face the second protrusion.

The air conditioner may include a rear guide disposed downstream of the fan.

The rear guide may extend along the rotation direction of the fan.

The rear guide may include a guide protrusion extending along the rotation direction of the fan.

The guide protrusion may be formed at a position corresponding to the plurality of connection plates.

The air conditioner may include an auxiliary vane disposed downstream of the fan.

The auxiliary vane may be connected to the rear guide.

The auxiliary vane may include a guide vane disposed at a position corresponding to the guide protrusion.

Specific details of other embodiments are included in the detailed description and drawings.

According to at least one of the embodiments of the present disclosure, the blowing performance of the air conditioner can be improved by the rear guide and stabilizer structure.

According to at least one of the embodiments of the present disclosure, noise generated inside the air conditioner can be reduced due to the protrusions of the rear guide and stabilizer.

According to at least one of the embodiments of the present disclosure, the energy efficiency of the air conditioner can be increased by improving blowing performance due to the protrusions of the rear guide and stabilizer.

According to at least one of the embodiments of the present disclosure, by adding protrusions to the rear guide and stabilizer, noise can be reduced and the passage structure can be simplified.

According to at least one of the embodiments of the present disclosure, the air flow can be guided to the discharge port due to the positional relationship between the rear guide, stabilizer, vane, and discharge guide.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of an air conditioner according to an embodiment of the present disclosure.
Figure 2 is a perspective view of an air conditioner according to an embodiment of the present disclosure.
Figure 3 is an exploded view of an air conditioner according to an embodiment of the present disclosure.
Figure 4 is a cross-sectional view of an air conditioner according to an embodiment of the present disclosure.
Figure 5 is a partial perspective view of an air conditioner according to an embodiment of the present disclosure.
Figure 6 is a partial structural diagram of an air conditioner according to an embodiment of the present disclosure.
Figure 7 is a portion of a cutaway view of an air conditioner according to an embodiment of the present disclosure.
8 is a part of an air conditioner according to an embodiment of the present disclosure.
9 is a portion of an air conditioner according to an embodiment of the present disclosure.
Figure 10 is a portion of a cutaway view of an air conditioner according to an embodiment of the present disclosure.
Figure 11 is a portion of a cross-sectional view of an air conditioner according to an embodiment of the present disclosure.
Figure 12 is a diagram explaining the effect of an air conditioner according to an embodiment of the present disclosure.
Figure 13 is a diagram explaining the effect of an air conditioner according to an embodiment of the present disclosure.
Figure 14 is a perspective view of an air conditioner according to an embodiment of the present disclosure.
15 is a portion of an air conditioner according to an embodiment of the present disclosure.
Figure 16 is a portion of a cross-sectional view of an air conditioner according to an embodiment of the present disclosure.

Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Regardless of the reference numerals, identical or similar components will be given the same reference numbers and redundant descriptions thereof will be omitted.

The suffixes “module” and “part” for components used in the following description are given or used interchangeably only for the ease of preparing the specification, and do not have distinct meanings or roles in themselves.

Additionally, in describing the embodiments disclosed in this specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed descriptions will be omitted. In addition, the attached drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed in this specification is not limited by the attached drawings, and all changes included in the spirit and technical scope of the present disclosure are not limited. , should be understood to include equivalents or substitutes.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is said to be “connected” or “connected” to another component, it is understood that it may be directly connected or connected to the other component, but that other components may exist in between. It should be. On the other hand, when a component is said to be “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

Referring to FIG. 1, the air conditioner 1 will be described.

The air conditioner (1) may be placed in the window assembly (9). The air conditioner (1) may be detachably disposed on the window assembly (9).

The window assembly 9 may include a window frame 91 and a window 92. The window frame 91 may form the outer shape of the window assembly 9. The window frame 91 may form a space on the inside. The window 92 can be moved in the inner space of the window frame 91. Glass may be fixed to the inside of the window 92.

The air conditioner 1 may be placed between the window frame 91 and the window 92. A space 93 may be formed between the window frame 91 and the window 92. The air conditioner (1) may be installed in the space (93) between the window frame (91) and the window (92).

A kit 94 may be placed between the air conditioner 1 and the window assembly 9. The kit 94 can fix the air conditioner (1) to the window assembly (9). The kit 94 can seal the gap between the air conditioner (1) and the window assembly (9).

The air conditioner (1) can be fixed to the window assembly (9). Indoor space and outdoor space can be distinguished based on the window assembly 9. Hereinafter, when describing the air conditioner 1, the indoor side facing the indoor space can be defined as the front, and the outdoor side facing the outdoor space can be defined as the rear.

The air conditioner 1 can suck indoor air and blow the sucked indoor air into the indoor space. The air conditioner (1) can suck in outdoor air and blow the sucked outdoor air to the outdoor space. The air conditioner 1 may include an inlet 11 and an outlet 12. Air in the indoor space may flow into the air conditioner (1) through the intake port (11). Air introduced into the air conditioner (1) through the intake port (11) may be supplied to the indoor space through the discharge port (12).

The intake port 11 may extend in the vertical direction. The discharge port 12 may extend in the vertical direction. The discharge port 12 may be spaced apart from the suction port 11 in a direction crossing the extension direction of the suction port 11.

The intake port 11 and the discharge port 12 may be open toward the indoor space. The suction port 11 and the discharge port 12 may be located on the same plane. The suction port 11 and the discharge port 12 may be spaced apart in the horizontal direction. The air conditioner (1) may protrude from the window assembly (9) toward the indoor space.

Air in the indoor space may flow into the air conditioner (1) through the intake port (11) and exchange heat. The air heat-exchanged inside the air conditioner (1) may be supplied to the indoor space through the discharge port (12) spaced apart from one side of the intake port (11).

Referring to FIG. 2, the air conditioner 1 will be described.

The air conditioner 1 may include a case 10. Case 10 may have a space inside. Case 10 can form the external shape of the air conditioner (1).

Case 10 may include a front case 13. The front case 13 may be arranged toward the indoor side. A portion of the front case 13 may protrude from the window assembly 9 toward the interior space.

Case 10 may include a rear case 14. The rear case 14 may be disposed toward the outdoor side. A portion of the rear case 14 may protrude from the window assembly 9 toward the outdoor space. The rear case 14 may be combined with the front case 13.

The intake port 11 may be formed in the front case 13. The intake port 11 may be formed on the front surface of the front case 13. The discharge port 12 may be formed in the front case 13. The discharge port 12 may be formed on the front surface of the front case 13. The intake port 11 and the discharge port 12 may be spaced apart from each other on the front surface of the front case 13.

The air conditioner 1 may include a grill 15. The grill 15 can be detached from the front surface of the front case 13. The grill 15 may be disposed at the intake port 11. Air in the indoor space may be introduced into the air conditioner (1) through the grill (15). The grill 15 may be spaced apart from the discharge port 12.

The air conditioner 1 may include a vane 20. Vane 20 may be located in front of the front case 13. The vane 20 may be disposed at the discharge port 12. The vane 20 can open and close the discharge port 12. The vane 20 may be rotatably disposed at the discharge port 12. The vane 20 may be rotatably coupled to the front case 13. The vane 20 may be spaced apart from the grill 15. The vane 20 can control the wind direction of the air discharged through the discharge port 12.

Referring to FIG. 3, the air conditioner 1 will be described.

Figure 3 is an exploded view of the air conditioner (1).

The front case 13 may include a front plate 133. The front plate 133 may form the front surface of the front case 13. The intake port 11 and the discharge port 12 may be formed in the front plate 133.

The front plate 133 may include a first plate 131. The first plate 131 may extend in the vertical direction. The intake port 11 may be formed by opening in the first plate 131.

The front plate 133 may include a second plate 132. The second plate 132 may extend in the vertical direction. The discharge hole 12 may be formed as an opening in the second plate 132.

The first plate 131 and the second plate 132 may be partitioned from each other. The first plate 131 and the second plate 132 may be spaced apart in the horizontal direction.

The grill 15 can be detached from the front plate 133. The grill 15 may be coupled to the front of the intake port 11. The grill 15 may be coupled to the first plate 131.

The vane 20 may be rotatably coupled to the front plate 133. The vane 20 may be rotatably disposed at the discharge port 12. Vane 20 may be coupled to the second plate 132.

The front case 13 may include a top plate 134. The top plate 134 may form the upper surface of the front case 13. The top plate 134 may extend rearward from the front plate 133. The top plate 134 may be combined with the rear case 14.

The front case 13 may include a first side plate 135. The first side plate 135 may form one side of the front case 13. The first side plate 135 may extend in the vertical direction. The first side plate 135 may be combined with the rear case 14.

The front case 13 may include a second side plate 136. The second side plate 136 may form the other side of the front case 13. The second side plate 136 may extend in the vertical direction. The second side plate 136 may be combined with the rear case 14.

The first side plate 135 and the second side plate 136 may face each other. The first side plate 135 and the second side plate 136 may form the side surface of the front case 13. The first side plate 135 and the second side plate 136 may be named “side plates.”

The air conditioner 1 may include an assembly (AS) disposed inside the case 10. Assembly (AS) may refer to a collection of parts arranged inside the case 10. Each part constituting the assembly AS may be separately separated from the inside of the case 10.

The air conditioner 1 may include a first unit 30. The first unit 30 may be placed inside the case 10 .

The air conditioner 1 may include a second unit 40. The second unit 40 may be placed inside the case 10 .

The air conditioner 1 may include a third unit 50. The third unit 50 may be placed inside the case 10 .

The first unit 30 and the second unit 40 may be coupled in the vertical direction. At this time, some parts of the second unit 40 may be introduced into the first unit 30.

The second unit 40 and the third unit 50 may be coupled in the front-to-back direction. At this time, some parts of the third unit 50 may be coupled to the first unit 30 in the front-to-back direction.

However, the description of the above-mentioned first, second, and third units (30, 40, and 50) is for explaining the overall combined structure of the air conditioner (1), and the first, second, and third units (30, 40, 50) Each division is not strictly defined. In other words, each of the above-described first, second, and third units 30, 40, and 50 may be a concept meaning some of the parts disposed inside the case 10. Each of the first, second, and third units (30, 40, and 50) may be an assembly of a plurality of parts, and the parts constituting each unit (30, 40, and 50) are separate from each unit (30, 40, and 50). can be separated into The parts constituting each unit 30, 40, and 50 may be separated to form a separate, independent unit.

The air conditioner 1 may include a first body 31. The first unit 30 may include a first body 31. The first body 31 may be placed inside the case 10 .

The air conditioner 1 may include a second body 32. The first unit 30 may include a second body 32. The second body 32 may be placed inside the case 10 . The second body 32 may be disposed below the first body 31.

The air conditioner 1 may include a cover 33. The first unit 30 may include a cover 33. Cover 33 may be placed inside the case 10. The cover 33 may surround the first body 31.

The air conditioner 1 may include an indoor fan 34. The first unit 30 may include an indoor fan 34. The indoor fan 34 may be placed inside the case 10. The indoor fan 34 may be disposed inside the first body 31. The indoor fan 34 may be rotatably coupled to the first body 31.

The air conditioner (1) may include an outdoor fan (35). The first unit 30 may include an outdoor fan 35. The outdoor fan 35 may be placed inside the case 10. The outdoor fan 35 may be disposed inside the first body 31. The outdoor fan 35 may be rotatably coupled to the first body 31.

The indoor fan 34 and the outdoor fan 35 may be named “fans.”

The air conditioner 1 may include a compressor 41. The second unit 40 may include a compressor 41. The compressor 41 may be placed inside the case 10. The compressor 41 can compress the refrigerant. The compressor 41 may be disposed in the inner space of the second body 32.

The air conditioner (1) may include an outdoor heat exchanger (42). The second unit 40 may include an outdoor heat exchanger 42. The outdoor heat exchanger 42 may be placed inside the case 10. The outdoor heat exchanger 42 can exchange heat with outdoor air and a refrigerant. The outdoor heat exchanger 42 may be disposed in the inner space of the first body 31. Outdoor air blown by the outdoor fan (35) can pass through the outdoor heat exchanger (42). The refrigerant discharged from the compressor 41 may flow into the outdoor heat exchanger 42 and exchange heat with outdoor air.

The air conditioner 1 may include an expansion device 43. The second unit 40 may include an expansion device 43. The expansion device 43 may be placed inside the case 10. The expansion device 43 can expand the refrigerant. The expansion device 43 may be disposed in the inner space of the second body 32. The refrigerant that has passed through the outdoor heat exchanger (42) may flow into the expansion device (43) and expand.

The air conditioner (1) may include an indoor heat exchanger (44). The second unit 40 may include an indoor heat exchanger 44. The indoor heat exchanger 44 may be placed inside the case 10. The indoor heat exchanger 44 may be disposed in the inner space of the first body 31. The refrigerant that has passed through the expansion device 43 flows into the indoor heat exchanger 44 and can exchange heat with indoor air.

The compressor 41, outdoor heat exchanger 42, expansion device 43, and indoor heat exchanger 44 may be connected to each other through refrigerant pipes (not shown).

The air conditioner 1 may include a base 45. The second unit 40 may include a base 45. The base 45 may form the lower surface of the case 10. The base 10 may be disposed on the lower side of the first and second bodies 31 and 32. The compressor 41, the outdoor heat exchanger 42, the expansion device 43, and the indoor heat exchanger 44 may be disposed on the upper side of the base 45.

The air conditioner (1) may include a control box (51). The third unit 50 may include a control box 51. The control box 51 may be placed inside the case 10. Inside the control box 51, there is a controller (not shown) electrically connected to the vane motor 29 (see FIG. 4), indoor fan 34, outdoor fan 35, compressor 41, and expansion device 43. ) can be placed. The controller can be mounted on a PCB board. The controller may control the operation of the components 29, 34, 35, 41, and 43.

The air conditioner 1 may include a third body 52. The third unit 50 may include a third body 52. The third body 52 may be placed inside the case 10 . The third body 52 may extend upward from the control box 51. A water pipe or a refrigerant pipe may be disposed inside the third body 52. The third body 52 may cover the water pipe or the refrigerant pipe.

Referring to FIG. 4, the air conditioner 1 will be described.

FIG. 4 is a horizontal cross-sectional view of the air conditioner 1 shown in FIG. 2.

Air in the indoor space may flow into the case 10 through the intake port 11. Air in the indoor space may pass through the grill 15 and flow into the case 10.

The indoor heat exchanger 44 may be disposed at an angle inside the case 10. The air introduced through the intake port 11 may exchange heat with the refrigerant flowing in the indoor heat exchanger 44.

The indoor fan 34 may be disposed downstream of the indoor heat exchanger 44. The indoor fan 34 can suck in air outside the case 10 through the intake port 11. The indoor fan 34 may be a cross-flow fan.

Air blown by the indoor fan 34 may flow to the discharge port 12. The vane 20 may be rotatably disposed at the discharge port 12. The vane 20 can open and close the discharge port 12 and control the flow direction of air discharged through the discharge port 12.

The air conditioner 1 may include a vane motor 29 that rotates the vane 20. The vane motor 29 may be fixed inside the case 10. The vane motor 29 may be connected to the vane 20 through the motor shaft 291. The vane 20 can be rotated by driving the vane motor 29.

The air conditioner (1) may include an outdoor intake port (16). Air from the outdoor space may flow into the case 10 through the outdoor intake port 16.

The air conditioner 1 may include a first outdoor grill 18. The first outdoor grill 18 may be disposed at the outdoor intake port 16. Air from the outdoor space may flow into the case 10 through the first outdoor grill 18.

The air conditioner (1) may include an outdoor outlet (17). The air inside the case 10 may be discharged to the outdoor space through the outdoor discharge port 17. The outdoor discharge port 17 may be spaced apart from the outdoor intake port 16 in the horizontal direction. The outdoor discharge port 17 and the outdoor intake port 16 may be located on the same plane.

The air conditioner 1 may include a second outdoor grill 19. The second outdoor grill 19 may be disposed at the outdoor discharge port 19. The air inside the case 10 may be discharged to the outdoor space through the second outdoor grill 19. The second outdoor grill 19 may be spaced apart from the first outdoor grill 18 in the horizontal direction. The first outdoor grill 18 and the second outdoor grill 19 may be located on the same plane.

The outdoor intake port 16, the outdoor discharge port 17, the first outdoor grill 18, and the second outdoor grill 19 may be disposed in the rear case 14 (see FIG. 3).

The outdoor heat exchanger 42 may be arranged to face the outdoor intake port 16. The air introduced through the outdoor intake port 16 may exchange heat with the refrigerant flowing in the outdoor heat exchanger 42.

The outdoor fan 35 may be disposed downstream of the outdoor heat exchanger 42. The outdoor fan 35 can suck in air outside the case 10 through the outdoor intake port 16. The outdoor fan 35 may be a cross-flow fan.

Air blown by the outdoor fan 35 may flow to the outdoor outlet 17. Air blown by the outdoor fan 35 may be discharged to the outdoor space through the outdoor discharge port 17.

The air conditioner 1 may include a partition wall 36. The partition wall 36 may be disposed inside the case 10. The partition wall 36 may extend curvedly in the horizontal direction. The partition wall 36 may be coupled to both side walls of the case 10.

The air conditioner 1 may include a first space 101. The first space 101 may be formed inside the case 10. Air in the indoor space may flow into the first space 101 through the intake port 11. Air flowing into the first space 101 may be blown by the indoor fan 34 and discharged into the indoor space through the discharge port 12. The indoor fan 34 and the indoor heat exchanger 44 may be disposed inside the first space 101.

The air conditioner 1 may include a second space 102. The second space 102 may be formed inside the case 10. Air from the outdoor space may flow into the second space 102 through the outdoor inlet 16. Air flowing into the second space 102 may be blown by the outdoor fan 35 and discharged into the outdoor space through the outdoor outlet 17. The outdoor fan 35 and the outdoor heat exchanger 42 may be disposed inside the second space 102.

The first space 101 and the second space 102 may be partitioned by a partition wall 36. The partition wall 36 may be disposed between the first space 101 and the second space 102. The partition wall 36 may separate the first space 101 and the second space 102. When classifying the interior space of the case 10, the first space 101 can be defined as the “indoor side” and the second space 102 can be defined as the “outdoor side.”

The air conditioner 1 may include a stabilizer 60. The stabilizer 60 may be disposed in the first space 101. The stabilizer 60 may be disposed at the discharge port 12. The stabilizer 60 may be disposed downstream of the indoor fan 34. The stabilizer 60 can guide the flow direction of air blown by the indoor fan 34.

The air conditioner (1) may include a rear guide (70). The rear guide 70 may be disposed in the first space 101. The rear guide 70 may be integrated with the bulkhead 36. The rear guide 70 may be placed on the downstream side of the indoor fan 34. The rear guide 70 can guide the flow direction of air blown by the indoor fan 34.

The rotation center of the indoor fan 34 may be located between the stabilizer 60 and the rear guide 70. Air blown by the indoor fan 34 may flow toward the discharge port 12 along the surface of the stabilizer 60 and the surface of the rear guide 70.

Referring to FIG. 5, the air conditioner 1 will be described.

Figure 5 schematically shows the indoor fan 34 and stabilizer 60 of the air conditioner 1.

The indoor fan 34 may extend long along the rotation axis (RX) direction. The indoor fan 34 may rotate around the rotation axis RX.

The indoor fan 34 may include a motor coupling plate 341. The motor coupling plate 341 may form one side of the indoor fan 34. The fan motor 344 (see FIG. 9) that rotates the indoor fan 34 may be coupled to the motor coupling plate 341.

The indoor fan 34 may include a connection plate 342. The connection plate 342 may be disk-shaped. A plurality of connection plates 342 may be arranged to be spaced apart in the direction of the rotation axis RX. The plurality of connection plates 342 may be arranged side by side with each other. The connection plate 342 may face the motor coupling plate 341.

The indoor fan 34 may include blades 343. A plurality of blades 343 may be arranged to be spaced apart along the rotation direction of the indoor fan 34. A plurality of blades 343 may be disposed between a plurality of connection plates 342. The plurality of blades 343 may extend between the plurality of connection plates 342 along the direction of the rotation axis (RX) of the indoor fan 34. A plurality of blades 343 may connect a plurality of connection plates 342.

The stabilizer 60 may be disposed downstream of the indoor fan 34. The stabilizer 60 can guide the flow direction of air blown by the indoor fan 34.

The stabilizer 60 may include a body 61. The body 61 may be spaced apart from the indoor fan 34.

The body 61 may include a first guide wall 611. The first guide wall 611 may face the connection plate 342 and the blade 343.

The body 61 may include a second guide wall 613. The second guide wall 613 may extend from the first guide wall 611 along the rotation direction of the indoor fan 34. The second guide wall 613 may extend in a direction intersecting the first guide wall 611.

The body 61 may include a bent portion 612. The bent portion 612 may connect the first guide wall 611 and the second guide wall 613. The bent portion 612 may be formed to be curved. The bent portion 612 may face the connection plate 342 and the blade 343. The bent portion 612 may be named “Cut-Off portion.”

The stabilizer 60 may include a first protrusion 62. The first protrusion 62 may protrude from the first guide wall 611. The first protrusion 62 may protrude toward the connection plate 342. A plurality of first protrusions 62 may be formed to be spaced apart in the direction of the rotation axis RX of the indoor fan 34. The first protrusion 62 may extend from the first guide wall 611 toward the bent portion 612. A portion of the first protrusion 62 may protrude from the first guide wall 611, and the remainder of the first protrusion 62 may protrude from the bent portion 612.

The stabilizer 60 may include a second protrusion 63. The second protrusion 63 may protrude from the second guide wall 613. The second protrusion 63 may protrude in a direction away from the indoor fan 34. A plurality of second protrusions 63 may be formed to be spaced apart in the direction of the rotation axis (RX) of the indoor fan 34. The second protrusion 63 may extend from the bent portion 612 toward the second guide wall 613. A portion of the second protrusion 63 may protrude from the bent portion 612, and the remainder of the second protrusion 63 may protrude from the second guide wall 613.

The first protrusion 62 and the second protrusion 63 may be referred to as “protrusions.” The first protrusion 62 and the second protrusion 63 may be included in the protrusion. That is, the protrusion may include a first protrusion 62 and a second protrusion 63.

Referring to FIG. 6, the air conditioner 1 will be described.

FIG. 6 shows the indoor fan 34 and stabilizer 60 shown in FIG. 5 as viewed from the front.

Air may be blown from the indoor fan 34 toward the stabilizer 60. The indoor fan 34 may rotate around the rotation axis RX to blow air toward the stabilizer 60.

The first protrusions 62 and second protrusions 63 may be alternately arranged along the direction of the rotation axis RX. The first protrusion 62 may be located between the plurality of second protrusions 63 along the direction of the rotation axis RX. The second protrusion 63 may be located between the plurality of first protrusions 62 along the direction of the rotation axis RX.

The first protrusion 62 may be formed at a position corresponding to the connection plate 342. The first protrusion 62 may be located on the downstream side of the connection plate 342. The first protrusion 62 may face the connection plate 342.

The second protrusion 63 may be formed at a position corresponding to the space between the plurality of connection plates 342. The second protrusion 63 may be formed at a position corresponding to the blade 343. The second protrusion 63 may be located on the downstream side of the blade 343. The second protrusion 63 may face the blade 343.

The first protrusion 62 may include a first protrusion extension 621. The first protrusion extension 621 may extend from the first guide wall 611 toward the bent portion 612.

The width of the first protrusion extension 621 may become wider toward the downstream side. That is, the width W1 of the first protrusion extension 621 adjacent to the indoor fan 34 may be smaller than the width W2 of the first protrusion extension 621 adjacent to the bent portion 612.

The first protrusion 62 may include a first protrusion front surface 622. The first protrusion front surface 622 may face the connection plate 342. The first protrusion front surface 622 may extend from the first protrusion extension 621 toward the connection plate 342.

The first protrusion 62 may include a first protrusion left side 623. The first protrusion left side 623 may face the adjacent first protrusion 62. The first protrusion left side 623 may extend to one side from the first protrusion extension 621.

The first protrusion 62 may include a first protrusion right side 624. The right side of the first protrusion 624 may face the adjacent first protrusion 62. The first protrusion right side 624 may extend from the first protrusion extension 621 to the other side.

The second protrusion 63 may include a second protrusion extension 631. The second protrusion extension 631 may extend from the bent portion 612 toward the second guide wall 613.

The width of the second protrusion extension 631 may become narrower toward the downstream side. That is, the width W3 of the second protrusion extension 631 adjacent to the bent portion 612 may be larger than the width W4 of the second protrusion extension 631 adjacent to the second guide wall 613. .

The second protrusion 63 may include a second protrusion left side 632. The second protrusion left side 632 may face the adjacent second protrusion 63. The second protrusion left side 632 may extend to one side from the second protrusion extension portion 631.

The second protrusion 63 may include a second protrusion right side 633. The second protrusion right side 633 may face the adjacent second protrusion 63. The second protrusion right side 633 may extend from the second protrusion extension 631 to the other side.

Due to the shape and position of the first and second protrusions 62 and 63 described above, the noise of the air conditioner 1 can be reduced. In the indoor fan 34, uneven flow occurs in the direction of the rotation axis (RX) in the area where the connection plate 342 is located. The first protrusion 62 primarily guides the flow in the direction of the rotation axis (RX) generated near the first guide wall 611 to flow along the rotation direction of the indoor fan 34. The second protrusion 63 secondarily guides the flow in the direction of the rotation axis (RX) generated near the second guide wall 613 to flow along the rotation direction of the indoor fan 34. Accordingly, the uneven flow in the direction of the rotation axis (RX) generated near the connection plate 342 is rectified to flow in the rotation direction of the indoor fan 34, thereby reducing the noise generated in the stabilizer 60. .

Referring to FIG. 7, the air conditioner 1 will be described.

Figure 7 shows the internal structure of the air conditioner (1) by cutting a part of it.

The stabilizer 60 may include a body 61 disposed downstream of the indoor fan 34.

The body 61 may include a first coupling wall 614. The first coupling wall 614 may extend from the second guide wall 613. The first coupling wall 614 may extend in a direction away from the discharge port 12.

The body 61 may include a bending guide wall 615. The bending guide wall 615 may extend from the second guide wall 613. The bending guide wall 615 may be integrated with the first coupling wall 614. The bending guide wall 615 may extend in a direction away from the vane 20.

Body 61 may include a third guide wall 616. The third guide wall 616 may extend from the bending guide wall 615. The third guide wall 616 may extend along the air flow direction.

Air blown by the indoor fan 34 may flow along the stabilizer 60 and be discharged through the discharge port 12. Air blown by the indoor fan 34 may be discharged through the space between the third guide wall 616 and the vane 20.

The vane 20 may be located downstream of the first protrusion 62. The vane 20 may be located downstream of the second protrusion 63. The end 25 of the vane 20 may be located downstream of the second protrusion 63. The air blown by the indoor fan 34 and rectified by the first and second protrusions 62 and 63 may flow toward the vane 20.

The vane 20 may be located downstream of the first guide wall 611. The vane 20 may be located downstream of the bent portion 612. The vane 20 may be located downstream of the second guide wall 613. The vane 20 may be located downstream of the bending guide wall 615.

The air rectified by the first and second protrusions 62 and 63 may flow between the vanes 20 and the third guide wall 616 along the bending guide wall 615. The width of the flow path between the vane 20 and the third guide wall 616 may expand toward the downstream side.

The air conditioner 1 may include an inner grill 80. The inner grill 80 may be disposed between the indoor fan 34 and the vane 20. The inner grill 80 may be located between the second protrusion 63 and the vane 20. The air rectified by the first and second protrusions 62 and 63 may pass through the inner grill 80 and flow toward the vane 20.

Referring to FIG. 8, the air conditioner 1 will be described.

Figure 8 shows part of the internal structure of the air conditioner (1). FIG. 8 may be shown with structures such as the stabilizer 60 and the vane 20 omitted for convenience of explanation.

The air conditioner (1) may include a rear guide (70). The rear guide 70 may be placed on the downstream side of the indoor fan 34. Air blown by the indoor fan 34 may flow along the surface of the rear guide 70.

The rear guide 70 may include a guide body 71. The guide body 71 may be spaced apart from the indoor fan 34. The guide body 71 may extend curvedly along the rotation direction of the indoor fan 34.

The rear guide 70 may include a guide protrusion 72. The guide protrusion 72 may protrude from the guide body 71. The guide protrusion 72 may extend along the rotation direction of the indoor fan 34. A plurality of guide protrusions 72 may be arranged to be spaced apart in the direction of the rotation axis (RX) of the indoor fan 34.

The air conditioner (1) may include an auxiliary vane (81). The auxiliary vane 81 may be disposed on the downstream side of the indoor fan 34.

The auxiliary vane 81 may be connected to the rear guide 70. Air flowing along the rear guide 70 can be guided in the direction of flow by the auxiliary vane 81.

The auxiliary vane 81 may include a first frame 811. The first frame 811 may be coupled to the guide body 71.

The auxiliary vane 81 may include a second frame 812. The second frame 812 may be spaced apart from the first frame 811. The second frame 812 may be coupled to the guide body 71.

The auxiliary vane 81 may include a guide vane 813. The guide vane 813 may be disposed between the first frame 811 and the second frame 812. A plurality of guide vanes 813 may be arranged to be spaced apart in the direction of the rotation axis (RX) of the indoor fan 34. The guide vane 813 may be disposed at a position corresponding to the connection plate 342. A plurality of guide vanes 813 may face the connection plate 342. A plurality of guide vanes 813 may be disposed at positions corresponding to the guide protrusions 72. A plurality of guide vanes 813 may face the guide protrusion 72.

Referring to FIG. 9, the air conditioner 1 will be described.

Figure 9 shows part of the internal structure of the air conditioner (1). FIG. 9 may be shown with structures such as the stabilizer 60, vane 20, and auxiliary vane 81 omitted for convenience of explanation.

The indoor fan 34 may be rotated by driving the fan motor 344. The blade 343 may form an airflow by rotation.

Air blown by the indoor fan 34 may flow along the rear guide 70. Air flowing along the rear guide 70 may be directed to the discharge partition 37.

The guide protrusion 72 may be disposed at a position corresponding to the connection plate 342. The guide protrusion 72 may face the connection plate 342. Accordingly, the guide protrusion 72 rectifies the uneven flow in the direction of the rotation axis (RX) occurring in the area adjacent to the connection plate 342, thereby reducing the noise of the air conditioner (1).

Referring to FIG. 10, the air conditioner 1 will be described.

Figure 10 shows a cut portion of the air conditioner (1).

Referring to FIGS. 3 and 10 , the indoor fan 34 may have a rotation axis (RX) extending in the vertical direction. That is, the indoor fan 34 can rotate around the vertical axis to blow air to the lateral side. Air blown laterally by the indoor fan 34 may be guided in the flow direction by the stabilizer 60, rear guide 70, and vane 20 and discharged forward through the discharge port 12. The description of the rotation of the indoor fan 34 described above can be applied to the air conditioner 1 described with reference to FIGS. 1 to 13.

The air conditioner (1) may include a discharge partition wall (37). The discharge partition 37 may extend forward from the rear guide 70. The discharge partition 37 may be integrated with the rear guide 70. A discharge port 12 may be formed between the discharge partition wall 37 and the stabilizer 60.

The air conditioner 1 may include a front body 137. The front body 137 may form the front surface of the case 10. A discharge port 12 may be formed between the front body 137 and the discharge partition wall 37.

The air conditioner (1) may include a discharge guide (26). The discharge guide 26 may protrude from the front body 137 toward the vane 20. The discharge guide 26 may be disposed at the discharge port 12.

The body 61 may include a second coupling wall 617. The second coupling wall 617 may extend from the third guide wall 616 toward the front body 137. The second coupling wall 617 may fix the stabilizer 60 to the front body 137.

The discharge port 12 may include a first discharge space 121. The first discharge space 121 may be defined as the space between the vane 20 and the stabilizer 60.

The discharge port 12 may include a second discharge space 122. The second discharge space 122 may be defined as the space between the discharge side wall 137 and the vane 20.

Air that has passed through the indoor heat exchanger (44) may be blown by the indoor fan (34). Air blown by the indoor fan 34 may flow toward the discharge port 12 along the surface of the rear guide 70. At this time, the flow uniformity of the air flowing along the surface of the rear guide 70 can be rectified by the guide protrusion 72. Air blown by the indoor fan 34 may flow toward the discharge port 12 along the surface of the stabilizer 60. At this time, the flow uniformity of the air flowing along the surface of the stabilizer 60 may be rectified by the first and second protrusions 62 and 63. The air flowing into the discharge port 12 can be guided in the direction of flow by the vane 20 and the discharge guide 26.

Referring to FIG. 11, the air conditioner 1 will be described.

Figure 11 shows a portion of the air conditioner 1 cut horizontally.

The air introduced through the intake port 11 is blown by the indoor fan 34 and flows to the discharge port 12. Air flowing through the discharge port 12 may flow along the stabilizer 60 and the rear guide 70.

The rear guide 70 may be integrated with the bulkhead 36. The partition wall 36, rear guide 70, and discharge side wall 37 may be integrated.

The vane 20 may be rotated to open the discharge port 12. The first edge 23 of the vane 20 may be located ahead of the front end 139 of the case 10.

The vane 20 may include a vane body 21. The vane body 21 may be of a flat type.

The vane 20 may include a vane protrusion 22. The vane protrusion 22 may protrude from the vane body 21. The vane protrusion 22 may have a Coanda surface 221. The Coanda surface 221 of the vane protrusion 22 may cause a Coanda effect in the air discharged through the discharge port 12.

The vane 20 may include a first edge 23. The first edge 23 may be disposed downstream of the vane protrusion 22.

The vane 20 may include a second edge 25. The second edge 25 may be disposed upstream of the vane protrusion 22.

The discharge guide 26 may include a fixing part 261. The fixing part 261 may be coupled to the front body 137.

The discharge guide 26 may include an extension portion 262. The extension portion 262 may protrude from the fixing portion 261 toward the vane 20.

The discharge guide 26 may include a guide portion 263. The guide portion 263 may extend from the extension portion 262 in the vertical direction. The guide portion 263 may have a Coanda surface 263a. Coanda surface 263a may be formed to be convex toward the front body 137. The Coanda surface 263a can cause a Coanda effect in the air discharged through the discharge port 12.

The discharge guide 26 may form a guide space 264. The guide space 264 may be formed between the guide part 263 and the fixing part 261.

The second protrusion 63 may face the guide portion 263 in the direction of air flow. The second protrusion 63 and the guide portion 263 may face each other in the front and rear directions.

Air blown by the indoor fan 34 may be primarily rectified by the first protrusion 62. The air primarily rectified by the first protrusion 62 may be secondarily rectified by the second protrusion 63. The air rectified by the first and second protrusions 62 and 63 may flow into the first discharge space 121. The air flowing into the first discharge space 121 may be guided in a forward flow direction by the guide part 263 while passing through the guide space 264. The air that has passed through the guide space 264 can be guided in a forward flow direction by the vane protrusion 22. The air that has passed through the guide space 264 may be discharged forward along the surface of the vane body 21.

Referring to FIG. 12, the effect of the air conditioner 1 will be described.

Figure 12 is a table and reference drawing comparing blowing performance depending on the presence or absence of protrusions on the stabilizer 60.

Case 1 shows the blowing performance when the first and second protrusions 62 and 63 do not exist as shown in the reference drawing.

Case 2 shows the blowing performance when only the first protrusion 62 is formed and the second protrusion 63 is not formed.

Case 3 shows the blowing performance when the first protrusion 62 is formed and the angle θ of the second protrusion 63 is 5 degrees.

Case 4 shows the blowing performance when the first protrusion 62 is formed and the angle θ of the second protrusion 63 is 10 degrees.

When comparing the four cases, it can be seen that the blowing performance is best when the first protrusion 62 is formed and the angle θ of the second protrusion 63 is 5 degrees.

Referring to FIG. 13, the effect of the air conditioner 1 will be described.

Figure 13 is a table and reference drawing comparing blowing performance depending on the presence or absence of protrusions and the shape of the rear guide 70.

Case 1 shows the blowing performance of the rear guide (70') without guide protrusions.

Case 2 shows the blowing performance of the rear guide 70 where the thickness (t1) of the guide protrusion 72 is 7 mm.

Case 3 shows the blowing performance of the rear guide 700 where the thickness (t2) of the guide protrusion 720 is 15 mm.

When comparing the three cases, it can be seen that the blowing performance is the best when the thickness (t1) of the guide protrusion (72) is 7 mm.

Hereinafter, an air conditioner 100 according to another embodiment of the present disclosure will be described with reference to FIGS. 14 to 16.

In the air conditioner 100 shown in FIGS. 14 to 16, unlike the air conditioner 1 in which the rotation axis of the fan 34 extends vertically, the rotation axis of the fan 3400 extends in the horizontal direction. In the description with reference to FIGS. 14 to 16, the description of other configurations except that the rotation axis extension direction of the fan 3400 is horizontal may be the same as that described with reference to FIGS. 1 to 13. .

Referring to FIG. 14, the air conditioner 100 may include a case 1000.

Case 1000 may be placed in window 9 shown in FIG. 1 . Case 1000 may include a front case 1300. The front case 1300 may be arranged toward the indoor space. Case 1000 may include a rear case 1400. The rear case 1400 may be placed toward an outdoor space.

The air conditioner 100 may include an intake port 1100 through which indoor air flows. The air conditioner 100 may include an outlet 1200 that supplies air into the room. The air introduced through the intake port 1100 may pass through the indoor heat exchanger 4400 (see FIG. 15) and then be supplied to the indoor space through the discharge port 1200.

Referring to FIG. 15, the fan 3400 may extend in the horizontal direction.

Fan 3400 may be a cross-flow fan. The fan 3400 may have a rotation axis extending in the horizontal direction. The fan 3400 rotates around the rotation axis and can suck indoor air into the front case 1300. The air sucked into the front case 1300 may exchange heat with the refrigerant in the indoor heat exchanger 4400 and then be supplied to the indoor space through the discharge port 1200.

Referring to FIG. 16, the air conditioner 1 may include a stabilizer 6000 and a rear guide 7000.

The rear guide 7000 may include a guide protrusion 7200. The description of the guide protrusion 7200 may be identical to that of the guide protrusion 72 described with reference to FIGS. 1 to 13 .

The guide protrusion 7200 may protrude toward the indoor fan 3400. The guide protrusion 7200 may extend along the rotation direction of the indoor fan 3400. The guide protrusion 7200 may be located on the upper side of the indoor fan 3400.

As shown in FIG. 9, a plurality of guide protrusions 7200 may be formed to be spaced apart in the horizontal direction. The plurality of guide protrusions 7200 may be formed at positions corresponding to the plurality of connection plates 342 of the indoor fan 3400. The plurality of guide protrusions 7200 may face each of the plurality of connection plates 342 in the vertical direction.

The stabilizer 6000 may include a first protrusion 6200. The description of the first protrusion 6200 may be identical to that of the first protrusion 62 described with reference to FIGS. 1 to 13 .

The first protrusion 6200 may protrude toward the indoor fan 3400. The first protrusion 6200 may extend along the rotation direction of the indoor fan 3400.

As shown in FIG. 6, a plurality of first protrusions 6200 may be formed to be spaced apart in the horizontal direction. The plurality of first protrusions 6200 may be formed at positions corresponding to the plurality of connection plates 342 of the indoor fan 3400. The plurality of first protrusions 6200 may face each of the plurality of connection plates 342 in the vertical direction.

The stabilizer 6000 may include a second protrusion 6300. The description of the second protrusion 6300 may be identical to that of the second protrusion 63 described with reference to FIGS. 1 to 13 .

The second protrusion 6300 may protrude toward the discharge port 1200. The second protrusion 6300 may extend along the rotation direction of the indoor fan 3400.

As shown in FIG. 6, a plurality of second protrusions 6300 may be formed to be spaced apart in the horizontal direction. The plurality of second protrusions 6300 may be formed at corresponding positions between the plurality of connection plates 342 of the indoor fan 3400. The second protrusion 6300 may be located between a plurality of connection plates 342 spaced apart from each other in the horizontal direction. The second protrusion 6300 may be located between a plurality of first protrusions 6200 that are spaced apart from each other in the horizontal direction.

The first protrusions 6200 and second protrusions 6300 may be alternately arranged along the horizontal direction, as shown in FIG. 6 .

In the above, preferred embodiments of the present invention have been shown and described, but the present invention is not limited to the specific embodiments described above, and can be used in the technical field to which the invention pertains without departing from the gist of the present invention as claimed in the patent claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be understood individually from the technical idea or perspective of the present invention.

The present disclosure may be modified and implemented in various forms, and its scope is not limited to the above-described embodiments. Therefore, if the modified embodiment includes elements of the claims of the present disclosure, it should be regarded as falling within the scope of the present disclosure.

Any or other embodiments of the present disclosure described above are not exclusive or distinct from each other. Certain embodiments or other embodiments of the present disclosure described above may have their respective components or functions combined or combined (Certain embodiments or other embodiments of the disclosure described above are not mutually exclusive or distinct from each other. Any or all elements of the embodiments of the disclosure described above may be combined with another or combined with each other in configuration or function).

For example, this means that configuration A described in a particular embodiment and/or drawing may be combined with configuration B described in other embodiments and/or drawings. In other words, even if the combination between configurations is not directly explained, this means that the combination is possible except in cases where the combination is described as impossible (For example, a configuration “A” described in one embodiment of the disclosure and the drawings and a configuration "B" described in another embodiment of the disclosure and the drawings may be combined with each other. Namely, although the combination between the configurations is not directly described, the combination is possible except in the case where it is described that the combination is impossible).

The above detailed description should not be construed as restrictive in any respect and should be considered illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included within the scope of the present invention (Although embodiments have been described with reference to a number of illustrative embodiments Thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope of the principles of this disclosure.More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art).

1: Air conditioner 10: Case
20: vane 34: indoor fan
60: Stabilizer 62: First projection
63: second protrusion 70: rear guide
72: Guide projection

Claims (20)

A case formed with an inlet and an outlet;
a fan rotatably disposed inside the case and having blades extending in the direction of the rotation axis and a plurality of connection plates spaced apart in the direction of the axis of rotation; and
Includes a stabilizer disposed downstream of the fan,
The stabilizer is,
a body facing the discharge port; and
An air conditioner comprising a plurality of protrusions that protrude from the body and are spaced apart from each other in the direction of the rotation axis of the fan.
According to claim 1,
The protrusions are,
a first protrusion facing the fan; and
An air conditioner including a second protrusion facing the discharge port.
According to clause 2,
The first protrusion and the second protrusion are,
Air conditioners arranged alternately in the direction of the rotation axis of the fan.
According to clause 2,
The first protrusion is,
An air conditioner formed at a position corresponding to the plurality of connection plates.
According to clause 2,
The first protrusion is,
a first protrusion extension extending in a direction away from the fan; and
An air conditioner comprising a front surface of a first protrusion facing the fan and connected to the first protrusion extension.
According to clause 2,
The first protrusion is,
An air conditioner whose width becomes wider as it moves away from the fan.
According to clause 2,
The second protrusion is,
An air conditioner formed at a corresponding position between the plurality of connection plates.
According to clause 2,
The second protrusion is,
a second protrusion extension extending in a direction away from the fan;
a second protrusion left side connected to one side of the second protrusion extension; and
An air conditioner including a right side of a second protrusion connected to the other side of the second protrusion extension.
According to clause 2,
The second protrusion is,
An air conditioner whose width becomes narrower as it moves away from the fan.
According to clause 2,
The body is,
a first guide wall facing the fan;
a second guide wall extending from the first guide wall toward the discharge port; and
An air conditioner including a bent portion connecting the first guide wall and the second guide wall.
According to claim 10,
The first protrusion is,
An air conditioner that protrudes from the first guide wall toward the fan and extends toward the bent portion.
According to claim 10,
The second protrusion is,
An air conditioner that protrudes from the second guide wall toward the discharge port and extends from the bent portion toward the second guide wall.
According to claim 10,
The body is,
An air conditioner including a bent guide wall extending from the second guide wall.
According to clause 2,
Further comprising a vane rotatably disposed at the discharge port,
An air conditioner where the gap between the body and the vane widens toward the downstream side.
According to clause 2,
Further comprising a vane rotatably disposed at the discharge port,
The vane is,
An air conditioner disposed on a downstream side of the second protrusion and facing the second protrusion.
According to clause 2,
Further comprising a discharge guide disposed at the discharge port,
The discharge guide is,
An air conditioner disposed on a downstream side of the second protrusion and facing the second protrusion.
According to claim 1,
It further includes a rear guide disposed on the downstream side of the fan and extending along the rotation direction of the fan,
The rear guide is,
An air conditioner including a guide protrusion extending along the rotation direction of the fan.
According to claim 17,
The guide protrusions are,
An air conditioner formed at a position corresponding to the plurality of connection plates.
According to claim 17,
An air conditioner further comprising an auxiliary vane disposed downstream of the fan and connected to the rear guide.
According to clause 19,
The auxiliary vane is,
An air conditioner including a guide vane disposed at a position corresponding to the guide protrusion.