Air conditioner

Abstract

The utility model discloses an air conditioner. The air conditioner comprises a machine shell, an air duct assembly and a heat exchanger component. The machine shell is provided with an air inlet and an air outlet, the air inlet is formed in the rear side of the machine shell, and the air outlet is formed in the front side of the machine shell. The air duct assembly is arranged in the machine shell and comprises an air duct volute, an air outlet frame and a wind wheel, the air duct volute is provided with an air duct, the air outlet frame is connected to the front end of the air duct volute and provided with an air outlet channel communicating with the air duct and the air outlet, and the projection of the machine shell on the horizontal plane is the machine shell projection. The left-right central axis extends in the front-back direction and is located in the middle of the projection of the machine shell in the left-right direction, the wall face of the air outlet channel comprises a first wall face located on the left side of the air outlet channel, and the included angle between the projection of the first wall face on the horizontal plane and the left-right central axis is a first included angle; the heat exchanger component is arranged between the air duct assembly and the air inlet. According to the air conditioner disclosed by the utility model, the air flow entering the air conditioner can be effectively guided, so that the air outlet smoothness of the air conditioner is ensured, and the noise can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to an air conditioner. Background Art

[0002] In the related art, the duct volute in the duct assembly of the air conditioner is connected with the air outlet frame, and the airflow entering the duct volute is guided to the air outlet through the air outlet frame. However, in the process of the airflow flowing from the duct through the air outlet channel to the air outlet, the airflow is not smooth and is prone to generate large noise, which needs to be solved. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an air conditioner, wherein a first angle δ is formed between a first projection of a first wall horizontal plane located on the left side of the air outlet channel and the left and right central axes, and the range of the first angle δ is 17° to 56°, which can effectively guide the airflow flowing into the air outlet channel through the air duct, thereby ensuring smooth air outlet of the air conditioner and reducing noise generation.

[0004] The air conditioner according to the embodiment of the utility model comprises: a casing having an air inlet and an air outlet, the air inlet being formed on the rear side of the casing, and the air outlet being formed on the front side of the casing; an air duct assembly being arranged in the casing and comprising an air duct volute, an air outlet frame and a wind wheel, the air duct volute having an air duct, at least a part of the wind wheel being located in the air duct, a volute tongue portion of the air duct volute being located on the left side of the air duct, the air outlet frame being connected to the front end of the air duct volute, the air outlet frame having an air outlet channel connecting the air duct and the air outlet, the air outlet channel being arranged in a direction from back to front It extends upward and obliquely toward the left, the rotation axis of the wind wheel is located on the right side of the left and right central axes, the projection of the casing on the horizontal plane is the casing projection, the left and right central axes extend along the front-to-back direction and are located in the middle of the casing projection in the left-right direction, the wall surface of the air outlet channel includes a first wall surface located on the left side of the air outlet channel, the projection of the first wall surface on the horizontal plane is the first projection, the angle between the first projection and the left and right central axes is the first angle, and the range of the first angle is 17°~56°; a heat exchanger component is arranged between the air duct assembly and the air inlet.

[0005] According to the air conditioner of the embodiment of the utility model, a first angle δ is formed between the first projection of the first wall horizontal plane located on the left side of the air outlet channel and the left and right central axes through the wall of the air outlet channel, and the range of the first angle δ is 17° to 56°. This can effectively guide the airflow flowing into the air outlet channel through the air duct, thereby ensuring smooth air outlet of the air conditioner and reducing noise generation.

[0006] According to some embodiments of the utility model, the front end of the air duct volute includes a first docking wall, and the rear end of the air outlet frame has a second docking wall, and the first docking wall and the second docking wall are opposite to each other in the left-right direction and docked with each other.

[0007] According to some embodiments of the utility model, the first docking wall is located on the left side of the air duct, the second docking wall is located on the left side of the air outlet channel, the surface of the second docking wall facing the first docking wall is the second docking surface, the projection of the second docking surface on the horizontal plane is the second projection, the second projection is connected to the rear side of the first projection and has an angle with the first projection, the connection point between the first projection and the second projection is the first connection point, the straight line passing through the first connection point and parallel to the left and right central axes is the first reference line, the angle between the second projection and the first reference line is the second angle, and the range of the second angle is -90° to 20°, wherein when the second projection is located on the right side of the first reference line, the second angle is a positive value, and when the second projection is located on the left side of the first reference line, the second angle is a negative value.

[0008] According to some embodiments of the present invention, the surface of the first docking wall facing the second docking wall is the first docking surface, the surface of the second docking wall facing the first docking wall is the second docking surface, and the distance between the first docking surface and the second docking surface ranges from 0 to 5 mm.

[0009] According to some embodiments of the present invention, the wall of the air duct includes a third wall located on the left side of the air duct, and the angle between the third wall and the first wall is a third angle, and the range of the third angle is 0° to 13°.

[0010] According to some embodiments of the present invention, the wall surface of the air duct includes a third wall surface located on the left side of the air duct, and the distance between the plane where the first wall surface is located and the plane where the third wall surface is located ranges from 0 to 5 mm.

[0011] According to some embodiments of the utility model, the front end of the air duct volute includes a third docking structure, the rear end of the air outlet frame has a fourth docking structure docked with the third docking structure, the first docking wall and the second docking wall are located on the left side of the air outlet channel, and the third docking structure and the fourth docking structure are located on the right side of the air outlet channel; wherein, the third docking structure includes a first side wall, and the fourth docking structure includes a second side wall and a third side wall, the first side wall extends in a direction close to the air outlet frame, the second side wall extends in a direction close to the air duct volute, the third side wall is connected to an end of the second side wall close to the air duct volute and extends in a direction away from the central axis of the air outlet channel, the third side wall and the second side wall have an angle between them, and the free end of the first side wall faces the third side wall and is docked with the third side wall.

[0012] According to some embodiments of the present invention, the wall surface of the second side wall facing the air outlet channel is the fourth wall surface, the wall surface of the third side wall facing backward is the fifth wall surface, and the angle between the fifth wall surface and the fourth wall surface ranges from 88° to 128°.

[0013] According to some embodiments of the utility model, the wall surface of the first side wall facing the air duct is the sixth wall surface, the wall surface of the first side wall away from the air duct is the seventh wall surface, the wall surface of the first side wall facing the third side wall is the eighth wall surface, the eighth wall surface includes a first wall surface portion and a second wall surface portion, the first wall surface portion is connected to the sixth wall surface, the second wall surface portion is connected between the first wall surface portion and the seventh wall surface, the first wall surface portion is a plane, and the second wall surface portion is an arcuate surface.

[0014] According to some embodiments of the present invention, the rearward wall surface of the third side wall is a fifth wall surface, and the distance between the first wall surface and the fifth wall surface is in the range of 0 to 5 mm.

[0015] According to some embodiments of the utility model, the wall surface of the second side wall facing the air outlet channel is the fourth wall surface, the wall surface of the third side wall facing backward is the fifth wall surface, the projection of the fourth wall surface on the horizontal plane is the third projection, the projection of the fifth wall surface on the horizontal plane is the fourth projection, the connection point between the third projection and the fourth projection is the third connection point, the straight line passing through the third connection point and parallel to the left and right central axes is the second reference line, the angle between the third projection and the second reference line is the fourth angle, the range of the fourth angle is -2° to 38°, wherein when the third projection is located on the left side of the second reference line, the fourth angle is a positive value, and when the third projection is located on the right side of the second reference line, the fourth angle is a negative value.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a front view of an air conditioner indoor unit according to some embodiments of the utility model;

[0019] Figure 2 yes Figure 1 Sectional view along line AA;

[0020] Figure 3 yes Figure 2 The enlarged view of point B in the middle;

[0021] Figure 4 yes Figure 2 Enlarged view of point C in the middle;

[0022] Figure 5 Figure 1 Exploded view of the indoor unit of the air conditioner;

[0023] Figure 6 Figure 5 A three-dimensional schematic diagram of an air duct volute of an indoor unit of an air conditioner;

[0024] Figure 7 Figure 6 A three-dimensional schematic diagram of an air outlet frame of an indoor unit of an air conditioner.

[0025] Reference numerals:

[0026] 100. Air conditioner indoor unit;

[0027] 1. Casing; 13. Base; 14. Front casing; 15. Back casing; 16. Top cover; 17. Air inlet; 18. Air outlet;

[0028] 2. Air duct assembly; 21. Air duct volute; 21a. Third docking structure; 210. First docking wall; 2100. First docking surface; 211. First side wall; 212. Sixth wall; 213. Seventh wall; 214. Eighth wall; 215. First wall portion; 216. Second wall portion; 217. First rib plate; 22. Air outlet frame; 22a. Fourth docking structure; 220. Second docking wall; 2201. Second docking surface; 221. Second side wall; 222. Third side wall; 223. Fourth wall; 224. Fifth wall; 225. Fourth side wall; 226. Fifth side wall; 227. First convex rib; 228. Second rib plate; 229. Second convex rib; 23. Wind wheel; 231. Volute tongue; 24. Air duct; 241. Third wall; 25. Air outlet channel; 251. First wall;

[0029] 3. Heat exchanger components. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] Reference below Figure 1-Figure 7 An air conditioner according to an embodiment of the present utility model is described.

[0032] Reference Figure 1 , Figure 2 and Figure 4 According to an embodiment of the utility model, the air conditioner comprises a casing 1, an air duct assembly 2 and a heat exchanger component 3. The casing 1 has an air inlet 17 and an air outlet 18, the air inlet 17 is formed at the rear side of the casing 1, the air outlet 18 is formed at the front side of the casing 1, and the heat exchanger component 3 is arranged between the air duct assembly 2 and the air inlet 17. The air duct assembly 2 is arranged in the casing 1 and the air duct assembly 2 comprises an air duct volute 21, an air outlet frame 22 and a wind wheel 23, the air duct volute 21 has an air duct 24, at least part of the wind wheel 23 is located in the air duct 24, the volute tongue 231 of the air duct volute 21 is located on the left side of the air duct 24, the air outlet frame 22 is connected to the front end of the air duct volute 21, the air outlet frame 22 has an air outlet channel 25 connecting the air duct 24 and the air outlet 18, and the air outlet channel 25 extends obliquely toward the left in the direction from back to front.

[0033] The air duct volute 21 has an air duct 24, and the air outlet frame 22 has an air outlet channel 25, and the air outlet channel 25 connects the air duct 24 and the air outlet 18. When the air conditioner is working, the wind wheel 23 drives the air flow to enter through the air inlet 17, and the wind wheel 23 drives the air flow to flow into the heat exchanger component 3 for heat exchange, and the air flow after heat exchange flows into the air duct 24, and the air flow transitions from the air duct 24 to the air outlet channel 25, and the air flow in the air outlet channel 25 flows to the air outlet 18, and the wind wheel 23 drives the air flow to be blown out into the room through the air outlet 18 to heat up or cool down the room.

[0034] The air outlet channel 25 extends obliquely toward the left in the direction from right rear to front, and can guide the airflow flowing to the front end of the air duct 24, guiding the airflow to transition through the air duct 24 to the air outlet channel 25; and it can guide the airflow in the air outlet channel 25, and can guide the airflow flowing into the rear end of the air outlet channel 25 to flow to the front end of the air outlet channel 25, and then flow to the air outlet 18, to ensure smooth air outlet of the air conditioner.

[0035] The rotation axis g of the wind wheel 23 is located on the right side of the left and right center axes h, the projection of the casing 1 on the horizontal plane is the projection of the casing 1, the left and right center axes h extend along the front-to-back direction and the left and right center axes h are located in the middle of the projection of the casing 1 in the left-to-right direction, the wall surface of the air outlet channel 25 includes a first wall surface 251 located on the left side of the air outlet channel 25, the projection of the first wall surface 251 on the horizontal plane is the first projection, the angle between the first projection and the left and right center axes is the first angle δ, and the range of the first angle δ is 17° to 56°.

[0036] For example, the first angle δ can be 17°, 20°, 30°, 45°, 50°, 56°, etc. By having the first angle δ be not less than 17°, it can be ensured that the air outlet channel 25 extends obliquely toward the left in the direction from back to front, so as to guide the airflow flowing from the air duct 24 to the air outlet channel 25, guide the airflow to flow into the air outlet channel 25 through the front end of the air duct 24, and guide the airflow to flow to the front end through the rear end of the air outlet channel 25, so as to flow out of the air outlet channel 25, which can ensure smooth air outlet of the air conditioner; by having the first angle δ be not greater than 56°, the change in the flow direction of the airflow can be smaller when the airflow flows into the air outlet channel 25 through the air duct 24, so that the airflow can be gently transitioned to the air outlet channel 25, thereby reducing noise.

[0037] By having the first angle δ in the range of 17° to 56°, the air outlet channel 25 can be extended obliquely toward the left in the direction from back to front, so as to guide the airflow flowing from the air duct 24 to the air outlet channel 25, guide the airflow to flow into the air outlet channel 25 through the front end of the air duct 24, and guide the airflow to flow to the front end through the rear end of the air outlet channel 25, so as to flow out of the air outlet channel 25, thereby ensuring smooth air outlet of the air conditioner; and when the airflow flows into the air outlet channel 25 through the air duct 24, the change in the flow direction of the airflow is smaller, so that the airflow can be gently transitioned to the air outlet channel 25, thereby reducing noise.

[0038] The fact that at least part of the wind wheel 23 is located in the wind duct 24 may include the following situations: for example, the entire wind wheel 23 may be located in the wind duct 24; for another example, a part of the wind wheel 23 may be located in the wind duct 24.

[0039] According to the air conditioner of the embodiment of the utility model, a first angle δ is formed between the first projection of the horizontal plane of the first wall 251 located on the left side of the air outlet channel 25 and the left and right central axes h through the wall of the air outlet channel 25, and the range of the first angle δ is 17° to 56°, which can effectively guide the airflow flowing into the air outlet channel 25 through the air duct 24, thereby ensuring smooth air outlet of the air conditioner and reducing noise generation.

[0040] Reference Figure 2 and Figure 4 According to some embodiments of the present invention, the front end of the air duct volute 21 includes a first docking wall 210, and the rear end of the air outlet frame 22 has a second docking wall 220. The first docking wall 210 and the second docking wall 220 are opposite to each other in the left-right direction and the first docking wall 210 and the second docking wall 220 are docked and matched. The docking and matching between the first docking wall 210 and the second docking wall 220 can guide the airflow at the front end of the air duct volute 21 to transition to the rear end of the air outlet frame 22, thereby reducing the air volume loss between the front end of the air duct volute 21 and the rear end of the air outlet frame 22.

[0041] Reference Figure 2 and Figure 4According to some embodiments of the present utility model, the first docking wall 210 is located on the left side of the air duct 24, the second docking wall 220 is located on the left side of the air outlet channel 25, the surface of the second docking wall 220 facing the first docking wall 210 is the second docking surface 2201, the projection of the second docking surface 2201 on the horizontal plane is the second projection, the second projection is connected to the rear side of the first projection and has an angle with the first projection, the connection point between the first projection and the second projection is the first connection point, the straight line passing through the first connection point and parallel to the left and right central axes is the first reference line j, the angle between the second projection and the first reference line is the second angle θ, the range of the second angle θ is -90° to 20°, wherein when the second projection is located on the right side of the first reference line j, the second angle θ is a positive value, and when the second projection is located on the left side of the first reference line j, the second angle θ is a negative value.

[0042] For example, the second angle θ can be -90°, -60°, -30°, -15°, 0°, 10°, 20°, etc. When the second angle θ is a positive value, it is beneficial to reduce the distance between the first docking surface 2100 and the second docking surface 2201, facilitate the docking and matching between the first docking surface 2100 and the second docking surface 2201, enhance the sealing effect between the first docking wall 210 and the second docking wall 220, and reduce the possibility of airflow flowing out through the space between the first docking wall 210 and the second docking wall 220; when the second angle θ is a negative value, a certain space is allowed between the first docking wall 210 and the second docking wall 220, which can reduce the degree of thermal expansion and contraction of the first docking wall 210 or the second docking wall 220 due to the close distance between the first docking wall 210 and the second docking wall 220.

[0043] The range of the second angle θ is -90° to 20°, and when the second projection is located on the right side of the first datum line, the second angle θ is a positive value, and when the second projection is located on the left side of the first datum line, the second angle θ is a negative value, which is conducive to reducing the distance between the first docking surface 2100 and the second docking surface 2201, facilitating the docking and matching between the first docking surface 2100 and the second docking surface 2201, enhancing the sealing effect between the first docking wall 210 and the second docking wall 220, and reducing the possibility of airflow flowing out through the space between the first docking wall 210 and the second docking wall 220; and allowing a certain space between the first docking wall 210 and the second docking wall 220 can reduce the degree of thermal expansion and contraction of the first docking wall 210 or the second docking wall 220 due to the first docking wall 210 and the second docking wall 220 being too close.

[0044] Reference Figure 2 and Figure 4According to some embodiments of the present invention, the surface of the first docking wall 210 facing the second docking wall 220 is the first docking surface 2100, the surface of the second docking wall 220 facing the first docking wall 210 is the second docking surface 2201, and the distance w3 between the first docking surface 2100 and the second docking surface 2201 ranges from 0 to 5 mm. For example, the spacing w3 between the first docking surface 2100 and the second docking surface 2201 can be 1mm, 2mm, 3mm, 3.5mm, 4mm, etc. By having the spacing w3 between the first docking surface 2100 and the second docking surface 2201 greater than 0mm, a certain assembly error is allowed between the first docking wall 210 and the second docking wall 220, which facilitates the disassembly and assembly between the air outlet frame 22 and the air duct volute 21. Fillers can be stuffed into the space between the first docking wall 210 and the second docking wall 220. The fillers are preferably velvet or sponge to enhance the sealing effect between the first docking wall 210 and the second docking wall 220. By having the spacing w3 between the first docking surface 2100 and the second docking surface 2201 less than 5mm, the possibility of airflow flowing out through the gap between the first docking wall 210 and the second docking wall 220 due to the excessive spacing w3 between the first docking surface 2100 and the second docking surface 2201 can be reduced.

[0045] By setting the spacing w3 between the first docking surface 2100 and the second docking surface 2201 to be in the range of 0 to 5 mm, a certain assembly error is allowed between the first docking wall 210 and the second docking wall 220, which facilitates the disassembly and assembly between the air outlet frame 22 and the air duct volute 21. Fillers can be stuffed into the space between the first docking wall 210 and the second docking wall 220. The fillers are preferably flannel or sponge to enhance the sealing effect between the first docking wall 210 and the second docking wall 220; and the possibility of airflow flowing out through the gap between the first docking wall 210 and the second docking wall 220 due to the excessive spacing w3 between the first docking surface 2100 and the second docking surface 2201 can be reduced.

[0046] Reference Figure 2 and Figure 4According to some embodiments of the present invention, the wall of the air duct 24 includes a third wall 241 located on the left side of the air duct 24, and the angle between the third wall 241 and the first wall 251 is a third angle ε, and the range of the third angle ε is 0° to 13°. For example, the third angle ε between the third wall 241 and the first wall 251 can be 0°, 3°, 5°, 19°, 13°, etc. By ensuring that the range of the third angle ε between the third wall 241 and the first wall 251 is not less than 0°, the docking and cooperation between the first wall 251 of the air outlet channel 25 and the third wall 241 of the air duct 24 can be facilitated; by ensuring that the range of the third angle ε between the third wall 241 and the first wall 251 is not greater than 13°, the airflow can be smoothly transitioned to the air outlet channel 25 to reduce the generation of noise. For example, it can be avoided that the angle between the first wall 251 and the third wall 241 is too large, which causes a large change in the flow direction angle of the airflow from the air duct 24 to the air outlet channel 25, thereby preventing the noise of the airflow from the air duct 24 to the air outlet channel 25 from being too large.

[0047] The third angle ε between the third wall 241 and the first wall 251 is in the range of 0° to 13°, which can facilitate the docking between the first wall 251 of the air outlet channel 25 and the third wall 241 of the air duct 24; and can make the airflow smoothly transition to the air outlet channel 25, reducing the generation of noise.

[0048] Reference Figure 2 and Figure 4 According to some embodiments of the present invention, the wall surface of the air duct 24 includes a third wall surface 241 located on the left side of the air duct 24, and the distance between the plane where the first wall surface 251 is located and the plane where the third wall surface 241 is located ranges from 0 to 5 mm. For example, the distance between the plane where the first wall surface 251 is located and the plane where the third wall surface 241 is located can be 0.5 mm, 1 mm, 1.5 mm, 2 mm, 3.5 mm, 5 mm, etc. By ensuring that the distance between the plane where the first wall 251 is located and the plane where the third wall 241 is located is greater than 0 mm, a certain assembly error is allowed for the assembly between the duct volute 21 and the air outlet frame 22, and it can also ensure that the flow cross-section of the airflow in the air outlet frame 22 is not less than the flow cross-section of the airflow in the air outlet frame 22, thereby reducing the flow velocity of the airflow in the air outlet frame 22, thereby reducing the noise of the airflow passing through the joint between the air outlet frame 22 and the duct volute 21; by ensuring that the distance between the plane where the first wall 251 is located and the plane where the third wall 241 is located is not greater than 5 mm, it can facilitate the assembly of the duct volute 21 and the air outlet frame 22, thereby facilitating the joint cooperation between the front end of the duct volute 21 and the rear end of the air outlet frame 22, reducing the airflow flowing to the gap between the first docking wall 210 and the second docking wall 220, and the possibility of air leakage from the joint between the front end of the duct volute 21 and the rear end of the air outlet frame 22.

[0049] By making the spacing between the plane where the first wall 251 is located and the plane where the third wall 241 is located in the range of 0.5 to 2 mm, a certain assembly error is allowed for the assembly between the air duct volute 21 and the air outlet frame 22, and it can also ensure that the flow cross-section of the airflow in the air outlet frame 22 is not less than the flow cross-section of the airflow in the air duct volute 21, thereby reducing the flow velocity of the airflow in the air outlet frame 22, thereby reducing the noise of the airflow when flowing through the joint between the air outlet frame 22 and the air duct volute 21, and can also leave a certain assembly error for the assembly between the air duct volute 21 and the air outlet frame 22; and, it can facilitate the assembly of the air duct volute 21 and the air outlet frame 22, thereby facilitating the joint cooperation between the front end of the air duct volute 21 and the rear end of the air outlet frame 22, reducing the airflow flowing to the gap between the first side wall 211 and the second side wall 221, and the possibility of air leakage from the joint between the front end of the air duct volute 21 and the rear end of the air outlet frame 22.

[0050] Reference Figure 2 and Figure 3 According to some embodiments of the utility model, the front end of the air duct volute 21 includes a third docking structure 21a, the rear end of the air outlet frame 22 has a fourth docking structure 22a docked with the third docking structure 21a, the first docking wall 210 and the second docking wall 220 are located on the left side of the air outlet channel 25, and the third docking structure 21a and the fourth docking structure 22a are located on the right side of the air outlet channel 25. The docking cooperation between the first docking wall 210 and the second docking wall 220, and the docking cooperation between the third docking structure 21a and the fourth docking structure 22a can guide the airflow at the front end of the air duct volute 21 to transition to the rear end of the air outlet frame 22, thereby reducing the air volume loss between the front end of the air duct volute 21 and the rear end of the air outlet frame 22.

[0051] Among them, the third docking structure 21a includes a first side wall 211, and the fourth docking structure 22a includes a second side wall 221 and a third side wall 222. The first side wall 211 extends in the direction close to the air outlet frame 22, and the second side wall 221 extends in the direction close to the air duct volute 21. The third side wall 222 is connected to an end of the second side wall 221 close to the air duct volute 21 and extends in the direction away from the central axis of the air outlet channel 25. There is an angle between the third side wall 222 and the second side wall 221, and the free end of the first side wall 211 faces the third side wall 222 and docks with the third side wall 222.

[0052] The first side wall 211 constitutes a partial side wall of the air duct 24 , and the second side wall 221 and the third side wall 222 constitute a partial side wall of the air outlet channel 25 . The first side wall 211 extends in the direction close to the air outlet frame 22, and can guide the airflow in the air duct 24 toward the rear end of the air outlet frame 22; the second side wall 221 extends in the direction close to the air duct volute 21, and can guide the airflow at the front end of the air duct volute 21, and can guide the airflow into the air outlet channel 25, and then the wind wheel 23 drives the airflow to accelerate and blow out through the air outlet 18; the free end of the first side wall 211 faces the third side wall 222 and the first side wall 211 is docked with the third side wall 222 to achieve the docking between the third docking structure 21a and the fourth docking structure 22a, which can guide the airflow to transition to the air outlet channel 25 through the air duct 24, reduce the air volume loss at the docking point between the front end of the air duct volute 21 and the rear end of the air outlet frame 22, and effectively avoid air flow backflow; and can reduce the noise generated by the airflow at the docking point between the front end of the air duct volute 21 and the rear end of the air outlet frame 22.

[0053] Reference Figure 2 and Figure 3 According to some embodiments of the present invention, the wall surface of the second side wall 221 facing the air outlet channel 25 is the fourth wall surface 223, the wall surface of the third side wall 222 facing backward is the fifth wall surface 224, and the angle α between the fifth wall surface 224 and the fourth wall surface 223 ranges from 88° to 128°. For example, the angle α between the fifth wall 224 and the fourth wall 223 can be 88°, 95°, 110°, 120°, 129°, etc., and the angle α between the fifth wall 224 and the fourth wall 223 is not less than 88°, which can facilitate the docking and cooperation between the third side wall 222 of the air outlet frame 22 and the free end of the first side wall 211 of the air duct volute 21; because the third side wall 222 extends in a direction away from the central axis of the air outlet channel 25, and the angle α between the fifth wall 224 and the fourth wall 223 is not greater than 128°, the sealing effect of the docking point between the third side wall 222 of the air outlet frame 22 and the free end of the first side wall 211 of the air duct volute 21 can be improved, thereby reducing the possibility of air flow backflow.

[0054] For example, the angle α between the fifth wall 224 and the fourth wall 223 is greater than 128°, and the third side wall 222 may extend in the direction close to the air duct volute 21. The third side wall 222 will have the effect of guiding the return air of the airflow, and may guide the return air of the airflow flowing to the joint between the front end of the air duct volute 21 and the rear end of the air outlet frame 22, or guide the airflow to the side of the air outlet frame 22 that is away from the air outlet channel 25 to flow out.

[0055] The angle α between the fifth wall 224 and the fourth wall 223 is in the range of 88° to 128°, which can facilitate the docking and cooperation between the third side wall 222 of the air outlet frame 22 and the free end of the first side wall 211 of the air duct volute 21; and the sealing effect of the docking point between the third side wall 222 of the air outlet frame 22 and the free end of the first side wall 211 of the air duct volute 21 can be improved, thereby reducing the possibility of air flow backflow.

[0056] Reference Figure 2 and Figure 3 According to some embodiments of the utility model, the wall surface of the first side wall 211 facing the air duct 24 is the sixth wall surface 212, the wall surface of the first side wall 211 away from the air duct 24 is the seventh wall surface 213, and the wall surface of the first side wall 211 facing the third side wall 222 is the eighth wall surface 214. The eighth wall surface 214 includes a first wall surface 215 and a second wall surface 216. The first wall surface 215 is connected to the sixth wall surface 212, and the second wall surface 216 is connected between the first wall surface 215 and the seventh wall surface 213. The first wall surface 215 is a plane, and the second wall surface 216 is an arcuate surface. The first wall surface 215 is a plane, which can facilitate the docking and cooperation between the eighth wall surface 214 of the first side wall 211 and the fifth wall surface 224 of the third side wall 222, thereby improving the sealing effect of the airflow between the free end of the first side wall 211 and the third side wall 222; the first wall surface 215 is a plane, and the second wall surface 216 is an arcuate surface, which can make the eighth wall surface 214 of the first side wall 211 and the seventh wall surface 213 have a smooth transition, which is convenient for the side of the first side wall 211 facing away from the air duct 24 to dock with the third side wall 222, and facilitate the assembly between the air outlet frame 22 and the air duct volute 21.

[0057] Reference Figure 3 According to some embodiments of the present invention, the angle β between the first wall surface 215 and the sixth wall surface 212 ranges from 54° to 94°. For example, the angle β between the first wall surface 215 and the sixth wall surface 212 can be 54°, 50°, 70°, 85°, 94°, etc. By making the angle β between the first wall surface 215 and the sixth wall surface 212 not less than 54°, it can be avoided that the angle between the eighth wall surface 214 and the sixth wall surface 212 is too small, which makes the top angle of the first side wall 211 facing the air duct 24 too sharp, and makes the air flow through the air duct 24 and the air outlet channel 25 The noise is too loud at the junction; by making the angle between the first wall surface 215 and the sixth wall surface 212 not greater than 94°, it can be avoided that the top angle of the first side wall 211 facing the air duct 24 is too large due to the angle between the eighth wall surface 214 and the sixth wall surface 212 is too large, making the docking between the free end of the first side wall 211 and the third side wall 222 more difficult, thereby weakening the sealing effect when the free end of the first side wall 211 and the third side wall 222 are docked.

[0058] By setting the angle β between the first wall surface 215 and the sixth wall surface 212 in the range of 54° to 94°, it is possible to avoid the angle between the eighth wall surface 214 and the sixth wall surface 212 being too small, which would make the top angle of the first side wall 211 facing the air duct 24 too sharp, and cause the airflow to make too much noise at the junction of the air duct 24 and the air outlet channel 25; and it is possible to avoid the angle between the eighth wall surface 214 and the sixth wall surface 212 being too large, which would make the top angle of the first side wall 211 facing the air duct 24 too large, making the docking between the free end of the first side wall 211 and the third side wall 222 more difficult, thereby weakening the sealing effect when the free end of the first side wall 211 and the third side wall 222 are docked.

[0059] Reference Figure 3 According to some embodiments of the present invention, the angle γ between the first wall surface 215 and the seventh wall surface 213 ranges from 86° to 126°. For example, the angle γ between the first wall surface 215 and the seventh wall surface 213 can be 86°, 90°, 105°, 115°, 126°, etc. By making the angle γ between the first wall surface 215 and the seventh wall surface 213 not less than 86°, it is possible to avoid the angle between the seventh wall surface 213 and the first wall surface 215 being too sharp to weaken the sealing effect of the docking fit between the first side wall 211 and the third side wall 222, and it is possible to avoid the free end of the first side wall 211 being too sharp to increase the noise of the airflow at the docking point between the air duct volute 21 and the air outlet frame 22; by making the angle between the first wall surface 215 and the seventh wall surface 213 not greater than 126°, it is possible to avoid the angle between the first wall surface 215 and the seventh wall surface 213 being too large to make the docking fit between the first side wall 211 and the third side wall 222 more difficult, thereby affecting the sealing effect of the docking fit between the first side wall 211 and the third side wall 222.

[0060] By setting the included angle γ between the first wall surface 215 and the seventh wall surface 213 in the range of 86° to 126°, it is possible to avoid the included angle between the seventh wall surface 213 and the first wall surface 215 being too sharp so as to weaken the sealing effect of the docking fit between the first side wall 211 and the third side wall 222, and it is possible to avoid the free end of the first side wall 211 being too sharp so as to increase the noise of the airflow at the docking point between the air duct volute 21 and the air outlet frame 22; and it is possible to avoid the included angle between the first wall surface 215 and the seventh wall surface 213 being too large so as to make the docking fit between the first side wall 211 and the third side wall 222 more difficult, thereby affecting the sealing effect of the docking fit between the first side wall 211 and the third side wall 222.

[0061] Optionally, the sixth wall surface 212 and the seventh wall surface 213 of the first side wall 211 may be parallel to each other, and the angle β between the first wall portion 215 and the sixth wall surface 212 and the angle γ between the first wall portion 215 and the seventh wall surface 213 are complementary.

[0062] Reference Figure 3 According to some embodiments of the present invention, the rearward wall surface of the third side wall 222 is the fifth wall surface 224, and the distance w1 between the first wall surface 215 and the fifth wall surface 224 ranges from 0 to 5 mm. For example, the distance w1 between the first wall surface 215 and the fifth wall surface 224 can be 1 mm, 2 mm, 3 mm, 3.5 mm, 4 mm, etc. By making the distance w1 between the first wall surface 215 and the fifth wall surface 224 greater than 0 mm, a certain assembly error is left between the first wall surface 215 and the fifth wall surface 224, which can facilitate the disassembly and assembly between the air outlet frame 22 and the air duct volute 21; by making the distance between the fourth wall surface 223 and the second rib 229 less than 5 mm, the possibility of airflow flowing out between the first wall surface 215 and the fifth wall surface 224 due to the excessive distance w1 between the first wall surface 215 and the fifth wall surface 224 can be reduced.

[0063] By making the distance w1 between the first wall surface 215 and the fifth wall surface 224 range from 0 to 5 mm, a certain assembly error is left between the first wall surface 215 and the fifth wall surface 224, which can facilitate the disassembly and assembly between the air outlet frame 22 and the air duct volute 21; and can reduce the possibility of airflow flowing out between the first wall surface 215 and the fifth wall surface 224 due to the excessive distance w1 between the first wall surface 215 and the fifth wall surface 224.

[0064] Reference Figure 3According to some embodiments of the present invention, the wall surface of the second side wall 221 facing the air outlet channel 25 is the fourth wall surface 223, the wall surface of the first side wall 211 facing the air duct 24 is the sixth wall surface 212, and the distance between the plane where the fourth wall surface 223 is located and the plane where the sixth wall surface 212 is located is in the range of 0.5 to 2 mm. For example, the distance between the plane where the fourth wall surface 223 is located and the plane where the sixth wall surface 212 is located can be 0.5 mm, 1 mm, 1.5 mm, 2 mm, etc. By ensuring that the distance between the plane where the fourth wall 223 is located and the plane where the sixth wall 212 is located is not less than 0.5 mm, a certain assembly error is allowed for the assembly between the duct volute 21 and the air outlet frame 22, and it can also ensure that the flow cross-section of the airflow in the air outlet frame 22 is not less than the flow cross-section of the airflow in the air outlet frame 22, thereby reducing the flow velocity of the airflow in the air outlet frame 22, thereby reducing the noise of the airflow when it flows through the joint between the air outlet frame 22 and the duct volute 21; by ensuring that the distance between the plane where the fourth wall 223 is located and the plane where the sixth wall 212 is located is not more than 2 mm, it can facilitate the assembly of the duct volute 21 and the air outlet frame 22, thereby facilitating the joint cooperation between the front end of the duct volute 21 and the rear end of the air outlet frame 22, reducing the airflow flowing to the gap between the first side wall 211 and the second side wall 221, and the possibility of air leakage from the joint between the front end of the duct volute 21 and the rear end of the air outlet frame 22.

[0065] By making the spacing between the plane where the fourth wall 223 is located and the plane where the sixth wall 212 is located in the range of 0.5 to 2 mm, a certain assembly error is allowed for the assembly between the air duct volute 21 and the air outlet frame 22, and it can also ensure that the flow cross-section of the airflow in the air outlet frame 22 is not less than the flow cross-section of the airflow in the air duct volute 21, thereby reducing the flow velocity of the airflow in the air outlet frame 22, thereby reducing the noise of the airflow when flowing through the joint between the air outlet frame 22 and the air duct volute 21, and a certain assembly error can be left for the assembly between the air duct volute 21 and the air outlet frame 22; and, it can facilitate the assembly of the air duct volute 21 and the air outlet frame 22, thereby facilitating the joint cooperation between the front end of the air duct volute 21 and the rear end of the air outlet frame 22, reducing the airflow flowing to the gap between the first side wall 211 and the second side wall 221, and the possibility of air leakage from the joint between the front end of the air duct volute 21 and the rear end of the air outlet frame 22.

[0066] Reference Figure 2 and Figure 3According to some embodiments of the present utility model, the wall surface of the second side wall 221 facing the air outlet channel 25 is the fourth wall surface 223, the wall surface of the third side wall 222 facing backward is the fifth wall surface 224, the projection of the fourth wall surface 223 on the horizontal plane is the third projection, the projection of the fifth wall surface 224 on the horizontal plane is the fourth projection, the connection point between the third projection and the fourth projection is the third connection point, the straight line passing through the third connection point and parallel to the left and right central axes is the second reference line n, the angle between the third projection and the second reference line n is the fourth angle σ, the range of the fourth angle σ is -2° to 38°, wherein when the third projection is located on the left side of the second reference line n, the fourth angle σ is a positive value, and when the third projection is located on the right side of the second reference line n, the fourth angle σ is a negative value.

[0067] For example, the fourth angle σ between the third projection and the second reference line n can be -2°, 0°, 10°, 25°, 30°, 38°, etc. By setting the fourth angle σ to be not less than -2°, the airflow can be smoothly transitioned to the air outlet channel 25 to reduce the generation of noise. For example, it can be avoided that the angle between the second side wall 221 and the third side wall 222 is too sharp due to the angle between the fourth wall 223 and the fifth wall 224 being too small, thereby preventing the noise caused by the transition of the airflow from the air duct 24 to the air outlet channel 25 from being too loud; by setting the fourth angle σ to be not greater than 38°, it can be ensured that the extension direction of the second side wall 221 toward the air outlet channel 25 is in the direction close to the left and right central axis h, but the plane where the fourth wall 223 is located does not exceed the left side of the left and right central axis h, so as to ensure that the space between the right side of the air outlet channel 25 and the left side of the air outlet channel 25 is large enough, so that the flow cross-section of the air outlet 18 can be large enough, thereby ensuring that the airflow flows out smoothly through the air outlet 18.

[0068] By setting the fourth angle σ between the third projection and the second reference line n in the range of -2° to 38°, the airflow can be smoothly transitioned to the air outlet channel 25 to reduce the generation of noise; and it can be ensured that the extension direction of the second side wall 221 toward the air outlet channel 25 is in the direction close to the left and right central axis h, but the plane where the fourth wall 223 is located does not exceed the left side of the left and right central axis h, so as to ensure that the space between the right side of the air outlet channel 25 and the left side of the air outlet channel 25 is large enough, so that the flow cross-section of the air outlet 18 can be large enough, thereby ensuring that the airflow flows out smoothly through the air outlet 18.

[0069] Reference Figure 3According to some embodiments of the present invention, the third docking structure 21a further includes a first rib plate 217, which is connected to a side of the first side wall 211 away from the air duct 24 and extends in a direction away from the central axis of the air duct 24. The first rib plate 217 can strengthen the structural strength of the first side wall 211, thereby enhancing the overall structural strength of the air duct volute 21; and when the air duct volute 21 is assembled with other components, the first rib plate 217 can play a positioning role, so that the assembly position between the air duct volute 21 and other components is accurate.

[0070] For example, when the air duct volute 21 and the air outlet frame 22 are assembled, the first rib plate 217 can play a role in positioning the air outlet frame 22 to ensure that the assembly position between the air duct volute 21 and the air outlet frame 22 is accurate.

[0071] The fourth docking structure 22 a further includes a fourth side wall 225 and a fifth side wall 226 . The fourth side wall 225 and the fifth side wall 226 can enhance the overall structural strength of the air outlet frame 22 .

[0072] The fourth side wall 225 is connected between the fifth side wall 226 and the third side wall 222, the fourth side wall 225 extends in a direction close to the first rib plate 217 and an angle is formed between the fourth side wall 225 and the third side wall 222, the fifth side wall 226 extends in a direction away from the central axis of the air outlet channel 25 and an angle is formed between the fifth side wall 226 and the fourth side wall 225, the fourth side wall 225 is opposite to the first side wall 211, and the fifth side wall 226 is opposite to the first rib plate 217. The fourth side wall 225 is connected between the fifth side wall 226 and the third side wall 222. The fourth side wall 225 extends in the direction close to the first rib plate 217 and there is an angle between the fourth side wall 225 and the third side wall 222. The fourth side wall 225 is opposite to the first side wall 211. For example, the airflow flows into the side of the air outlet frame 22 away from the air outlet channel 25 through the joint between the first side wall 211 and the third side wall 222. The fourth side wall 225 is connected between the fifth side wall 226 and the third side wall 222. A labyrinth structure can be formed on the side of the air outlet frame 22 away from the air outlet channel 25 to enhance the sealing effect of the side of the air outlet frame 22 away from the air outlet channel 25.

[0073] The fifth side wall 226 extends in a direction away from the central axis of the air outlet channel 25 and has an angle with the fourth side wall 225. The fifth side wall 226 is opposite to the first rib plate 217, which can enhance the overall stability of the docking between the third docking structure 21a and the fourth docking structure 22a. Moreover, since there is an angle between the fifth side wall 226 and the fourth side wall 225, the flow angle of the airflow in the space on the side of the air outlet frame 22 away from the air outlet channel 25 can be changed, thereby weakening the flow effect of the airflow in the space on the side of the air outlet frame 22 away from the air outlet channel 25.

[0074] For example, the airflow flows into the side of the air outlet frame 22 away from the air outlet channel 25 through the joint between the first side wall 211 and the third side wall 222, and there is an angle between the fourth side wall 225 and the third side wall 222, and there is an angle between the fifth side wall 226 and the fourth side wall 225. The flow angle of the airflow can be continuously changed to weaken the circulation effect of the airflow in the space on the side of the air outlet frame 22 away from the air outlet channel 25.

[0075] By providing a fourth side wall 225 and a fifth side wall 226 on the third side wall 222, the overall structural strength of the fourth docking structure 22a can be enhanced, and a maze-like structure can be formed on the side of the air outlet frame 22 facing away from the air outlet channel 25, thereby enhancing the sealing effect of the side of the air outlet frame 22 facing away from the air outlet channel 25 and effectively reducing the possibility of airflow flowing out through the side of the air outlet frame 22 facing away from the air outlet channel 25.

[0076] Reference Figure 3 According to some embodiments of the utility model, a first convex rib 227 is formed on one side of the fifth side wall 226 facing the first rib plate 217. The first convex rib 227 can enhance the structural strength of the fifth side wall 226, thereby enhancing the overall structural strength of the air outlet frame 22; and, since the fifth side wall 226 is opposite to the first rib plate 217, the first convex rib 227 can play a positioning role in the cooperation between the fifth side wall 226 and the first rib plate 217, thereby making the assembly position of the air duct volute 21 and the air outlet frame 22 accurate; the first convex rib 227 can also increase the windproof area between the fifth side wall 226 and the first rib plate 217, thereby enhancing the sealing effect between the fifth side wall 226 and the first rib plate 217, and reducing the possibility of airflow leakage through the gap between the fifth side wall 226 and the first rib plate 217.

[0077] Reference Figure 4 According to some embodiments of the utility model, a second rib plate 228 is connected to the side of the third side wall 222 facing the air duct volute 21, and the second rib plate 228 is located between the first side wall 211 and the fourth side wall 225. The second rib plate 228 can enhance the structural strength of the third side wall 222, thereby enhancing the overall structural strength of the air outlet frame 22; and, since the second rib plate 228 is located between the first side wall 211 and the fourth side wall 225, the sealing effect between the first side wall 211 and the fourth side wall 225 can be enhanced, and the possibility of airflow flowing out between the first side wall 211 and the fourth side wall 225 can be reduced; the second rib plate 228 can also play a positioning role in the cooperation between the first side wall 211 and the fourth side wall 225, so that the assembly position of the air duct volute 21 and the air outlet frame 22 is accurate.

[0078] Among them, a second rib 229 is formed on the side of the second rib 228 facing the first side wall 211, and the second rib 229 can enhance the structural strength of the second rib 228; and the second rib 229 can limit the first side wall 211, and when the air duct volute 21 and the air outlet frame 22 are assembled, the accurate assembly position of the air duct volute 21 and the air outlet frame 22 can be ensured.

[0079] Optionally, there may be a plurality of second convex ribs 229 , and the plurality of second convex ribs 229 are formed on the second rib plate 228 and are spaced apart along the up-and-down direction of the second rib plate 228 .

[0080] Optionally, according to an embodiment of the present invention, the wall surface of the first side wall 211 that faces away from the air duct 24 is the seventh wall surface 213, and the spacing w2 between the seventh wall surface 213 and the second convex rib 229 ranges from 0 to 5 mm. For example, the spacing w2 between the seventh wall surface 213 and the second convex rib 229 can be 1 mm, 2 mm, 3 mm, 3.5 mm, 4 mm, etc. By making the spacing w2 between the seventh wall surface 213 and the second convex rib 229 greater than 0 mm, a certain assembly error is allowed between the seventh wall surface 213 and the second convex rib 229, which is convenient for air outlet. The disassembly and assembly between the frame 22 and the air duct volute 21 can be performed by stuffing a filler into the gap w2 between the seventh wall 213 and the second convex rib 229. The filler is preferably flannel or sponge to enhance the sealing effect between the first side wall 211 and the second convex rib 229. By making the gap w2 between the seventh wall 213 and the second convex rib 229 less than 5 mm, the possibility of the airflow flowing out through the gap between the first side wall 211 facing away from the air duct 24 and the second convex rib 229 due to the excessive gap w2 between the seventh wall 213 and the second convex rib 229 can be reduced.

[0081] The spacing w2 between the seventh wall 213 and the second convex rib 229 ranges from 0 to 5 mm, allowing a certain assembly error between the seventh wall 213 and the second convex rib 229, which facilitates the disassembly and assembly between the air outlet frame 22 and the air duct volute 21. Fillers can be stuffed into the spacing w2 between the seventh wall 213 and the second convex rib 229. The fillers are preferably flannel or sponge to enhance the sealing effect between the first side wall 211 and the second convex rib 229; and the possibility of airflow flowing out through the gap between the first side wall 211 facing away from the air duct 24 and the second convex rib 229 due to the excessive spacing w2 between the first side wall 211 and the second convex rib 229 can be reduced.

[0082] Refer to the following Figure 1-Figure 7 An air conditioner according to an embodiment of the present invention is described.

[0083] Reference Figure 1 , Figure 3 and Figure 4In this embodiment, the air conditioner is a split-type floor-standing air conditioner, and the air conditioner includes an air-conditioning indoor unit 100 and an air-conditioning outdoor unit. The air-conditioning indoor unit 100 includes a casing 1, a heat exchanger assembly and an air duct assembly 2. The casing 1 of the air-conditioning indoor unit 100 includes a front casing 14, a rear casing 15, a top cover 16 and a base 13. The front casing 14 and the rear casing 15 are both arranged on the base 13, the front casing 14 is connected to the rear casing 15 and the front casing 14 is connected to the front side of the rear casing 15, and the top cover 16 is covered on the top of the front casing 14 and the rear casing 15.

[0084] The housing 1 has an air inlet 17 and an air outlet 18 . The air inlet 17 is formed on the rear housing 15 , and the air outlet 18 is formed on the front housing 14 . The heat exchanger is located between the air duct assembly 2 and the air inlet 17 .

[0085] The air duct assembly 2 is arranged in the housing 1 and includes an air duct volute 21, an air outlet frame 22 and a wind wheel 23, and the wind wheel 23 is arranged in the air duct volute 21. The air duct volute 21 has an air duct 24, at least part of the wind wheel 23 is located in the air duct 24, the volute tongue 231 of the air duct volute 21 is located on the left side of the air duct 24, and the air outlet frame 22 has an air outlet channel 25, which connects the air duct 24 and the air outlet 18, and the air outlet channel 25 extends obliquely toward the left in the direction from back to front.

[0086] The rotation axis of the wind wheel 23 is located on the right side of the left and right central axis, the projection of the housing 1 on the horizontal plane is the housing 1 projection, the left and right central axis extend in the front-to-back direction and the left and right central axis are located in the middle of the housing 1 projection in the left-to-right direction, the wall surface of the air outlet channel 25 includes a first wall surface 251 located on the left side of the air outlet channel 25, the projection of the first wall surface 251 on the horizontal plane is the first projection, and the angle between the first projection and the left and right central axis is the first angle. The wall surface of the air duct 24 also includes a third wall surface 241 located on the left side of the air duct 24.

[0087] The front end of the air duct volute 21 includes a first docking wall 210 , and the rear end of the air outlet frame 22 has a second docking wall 220 . The first docking wall 210 and the second docking wall 220 are opposite to each other in the left-right direction and are docked with each other.

[0088] The first docking wall 210 is located on the left side of the air duct 24, the second docking wall 220 is located on the left side of the air outlet channel 25, and the surface of the second docking wall 220 facing the first docking wall 210 is the second docking surface 2201. The surface of the first docking wall 210 facing the second docking wall 220 is the first docking surface 2100, and the surface of the second docking wall 220 facing the first docking wall 210 is the second docking surface 2201.

[0089] The front end of the air duct volute 21 includes a third docking structure 21a, and the rear end of the air outlet frame 22 has a fourth docking structure 22a docked with the third docking structure 21a, the third docking structure 21a includes a first side wall 211, and the fourth docking structure 22a includes a second side wall 221 and a third side wall 222, the first side wall 211 extends in a direction close to the air outlet frame 22, the second side wall 221 extends in a direction close to the air duct volute 21, the third side wall 222 is connected to an end of the second side wall 221 close to the air duct volute 21 and extends in a direction away from the central axis of the air outlet channel 25, the third side wall 222 and the second side wall 221 have an angle between them, the free end of the first side wall 211 faces the third side wall 222 and the first side wall 211 is docked with the third side wall 222.

[0090] The wall surface of the first side wall 211 facing the air duct 24 is the sixth wall surface 212, the wall surface of the first side wall 211 away from the air duct 24 is the seventh wall surface 213, the wall surface of the first side wall 211 facing the third side wall 222 is the eighth wall surface 214, the eighth wall surface 214 includes a first wall surface 215 and a second wall surface 216, the first wall surface 215 is connected to the sixth wall surface 212, the second wall surface 216 is connected between the first wall surface 215 and the seventh wall surface 213, the first wall surface 215 is a plane, and the second wall surface 216 is an arcuate surface.

[0091] The wall surface of the second side wall 221 facing the air outlet channel 25 is a fourth wall surface 223 , and the wall surface of the third side wall 222 facing rearward is a fifth wall surface 224 .

[0092] The third docking structure 21 a further includes a first rib plate 217 . The first rib plate 217 is connected to a side of the first side wall 211 away from the air duct 24 and extends in a direction away from the central axis of the air duct 24 .

[0093] The fourth docking structure 22a further includes a fourth side wall 225 and a fifth side wall 226. The fourth side wall 225 is connected between the fifth side wall 226 and the third side wall 222. The fourth side wall 225 extends in a direction close to the first rib plate 217 and an angle is formed between the fourth side wall 225 and the third side wall 222. The fifth side wall 226 extends in a direction away from the central axis of the air outlet channel 25 and an angle is formed between the fifth side wall 226 and the fourth side wall 225. The fourth side wall 225 is opposite to the first side wall 211, and the fifth side wall 226 is opposite to the first rib plate 217. A first convex rib 227 is formed on one side of the fifth side wall 226 facing the first rib plate 217.

[0094] A second rib 228 is connected to the side of the third side wall 222 facing the air duct volute 21 . The second rib 228 is located between the first side wall 211 and the fourth side wall 225 . A second convex rib 229 is formed on the side of the second rib 228 facing the first side wall 211 .

[0095] When the air conditioner is working, the impeller 23 drives the air flow to enter through the air inlet 17, and the impeller 23 drives the air flow to flow into the heat exchanger component 3 for heat exchange. The air flow after heat exchange flows through the air duct 24 in the air duct volute 21 to the air outlet channel 25 of the air outlet frame 22, and finally blows out to the room through the air outlet 18 to heat up or cool down the room. Among them, the air outlet channel 25 extends in a leftward tilt from the back to the front, which can effectively guide the air flow, make the air outlet of the air conditioner smooth, and reduce the generation of noise; and through the docking cooperation of the first docking wall 210 and the second docking wall 220, and the docking cooperation of the third docking structure 21a and the fourth docking structure 22a, the air volume loss of the air flow at the docking point between the front end of the air duct volute 21 and the rear end of the air outlet frame 22 can be reduced, and the noise generated by the air flow at the docking point between the front end of the air duct volute 21 and the rear end of the air outlet frame 22 can be reduced.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0097] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air conditioner, characterized in that: include: A housing having an air inlet and an air outlet, wherein the air inlet is formed at the rear side of the housing, and the air outlet is formed at the front side of the housing; The duct assembly is arranged in the casing and includes a duct volute, an air outlet frame and a wind wheel, the duct volute has an air duct, at least a part of the wind wheel is located in the air duct, the duct tongue portion of the duct volute is located on the left side of the air duct, the air outlet frame is connected to the front end of the duct volute, the air outlet frame has an air outlet channel connecting the air duct and the air outlet, the air outlet channel extends obliquely toward the left in the direction from back to front, the rotation axis of the wind wheel is located on the right side of the left and right central axes, the projection of the casing on the horizontal plane is the casing projection, the left and right central axes extend along the front-to-back direction and are located in the middle of the casing projection in the left and right directions, the wall surface of the air outlet channel includes a first wall surface located on the left side of the air outlet channel, the projection of the first wall surface on the horizontal plane is the first projection, the angle between the first projection and the left and right central axes is the first angle, and the range of the first angle is 17° to 56°; The heat exchanger component is arranged between the air duct component and the air inlet.

2. The air conditioner according to claim 1, characterized in that: The front end of the air duct volute includes a first docking wall, and the rear end of the air outlet frame has a second docking wall. The first docking wall and the second docking wall are opposite to each other in the left-right direction and are docked with each other.

3. The air conditioner according to claim 2, characterized in that: The first docking wall is located on the left side of the air duct, the second docking wall is located on the left side of the air outlet channel, the surface of the second docking wall facing the first docking wall is the second docking surface, the projection of the second docking surface on the horizontal plane is the second projection, the second projection is connected to the rear side of the first projection and has an angle with the first projection, the connection point between the first projection and the second projection is the first connection point, the straight line passing through the first connection point and parallel to the left and right central axes is the first reference line, the angle between the second projection and the first reference line is the second angle, and the range of the second angle is -90° to 20°, wherein when the second projection is located on the right side of the first reference line, the second angle is a positive value, and when the second projection is located on the left side of the first reference line, the second angle is a negative value.

4. The air conditioner according to claim 2, characterized in that: The surface of the first docking wall facing the second docking wall is a first docking surface, the surface of the second docking wall facing the first docking wall is a second docking surface, and the distance between the first docking surface and the second docking surface ranges from 0 to 5 mm.

5. The air conditioner according to claim 2, characterized in that: The wall surface of the air duct includes a third wall surface located on the left side of the air duct, and an angle between the third wall surface and the first wall surface is a third angle, and the range of the third angle is 0° to 13°.

6. The air conditioner according to claim 2, characterized in that: The wall surface of the air duct includes a third wall surface located on the left side of the air duct, and the distance between the plane where the first wall surface is located and the plane where the third wall surface is located is in the range of 0 to 5 mm.

7. The air conditioner according to any one of claims 2 to 6, characterized in that: The front end of the air duct volute includes a third docking structure, the rear end of the air outlet frame has a fourth docking structure docked with the third docking structure, the first docking wall and the second docking wall are located on the left side of the air outlet channel, and the third docking structure and the fourth docking structure are located on the right side of the air outlet channel; Among them, the third docking structure includes a first side wall, and the fourth docking structure includes a second side wall and a third side wall, the first side wall extends in a direction close to the air outlet frame, the second side wall extends in a direction close to the air duct volute, the third side wall is connected to an end of the second side wall close to the air duct volute and extends in a direction away from the central axis of the air outlet channel, the third side wall has an angle with the second side wall, and the free end of the first side wall faces the third side wall and is docked with the third side wall.

8. The air conditioner according to claim 7, characterized in that: The wall surface of the second side wall facing the air outlet channel is a fourth wall surface, the wall surface of the third side wall facing backward is a fifth wall surface, and the angle between the fifth wall surface and the fourth wall surface ranges from 88° to 128°.

9. The air conditioner according to claim 7, characterized in that: The wall surface of the first side wall facing the air duct is a sixth wall surface, the wall surface of the first side wall away from the air duct is a seventh wall surface, and the wall surface of the first side wall facing the third side wall is an eighth wall surface. The eighth wall surface includes a first wall surface and a second wall surface. The first wall surface is connected to the sixth wall surface. The second wall surface is connected between the first wall surface and the seventh wall surface. The first wall surface is a plane and the second wall surface is an arcuate surface.

10. The air conditioner according to claim 9, characterized in that: The rearward wall surface of the third side wall is a fifth wall surface, and the distance between the first wall surface and the fifth wall surface is in the range of 0 to 5 mm.

11. The air conditioner according to claim 7, characterized in that: The wall surface of the second side wall facing the air outlet channel is the fourth wall surface, the wall surface of the third side wall facing backward is the fifth wall surface, the projection of the fourth wall surface on the horizontal plane is the third projection, the projection of the fifth wall surface on the horizontal plane is the fourth projection, the connection point between the third projection and the fourth projection is the third connection point, the straight line passing through the third connection point and parallel to the left and right central axes is the second reference line, the angle between the third projection and the second reference line is the fourth angle, and the range of the fourth angle is -2° to 38°, wherein when the third projection is located on the left side of the second reference line, the fourth angle is a positive value, and when the third projection is located on the right side of the second reference line, the fourth angle is a negative value.

Images