Wall-mounted air conditioner

Abstract

A wall-mounted air conditioner (1) is provided, the wall-mounted air conditioner (1) includes a casing (10), the casing (10) includes an air duct (30), the air duct (30) includes an intake passage (321) and an exhaust passage (322) connected to each other, the air duct (30) has an intake port (311) and an exhaust port (312), at least a part of the intake port (311) is directed toward a front surface (11) of the wall-mounted air conditioner (1), and a first angle between a center line of the intake passage (321) and a center line of the exhaust passage (322) is 10 degrees or more and 85 degrees or less. By positioning at least a part of the intake port (311) of the wall-mounted air conditioner (1) at the front surface (11) of the casing (10), air in the environment does not need to enter the air duct (30) from directly above the casing (10). This makes it possible to significantly reduce or eliminate the distance between the wall-mounted air conditioner (1) and the ceiling wall (3) inside the room, thereby improving the space utilization rate inside the room.

Description

[Technical Field]

[0001] [Priority information] This disclosure is based on and claims priority from a Chinese patent application having Chinese patent application number No. 202110610657.X and filing date June 1, 2021, the entire contents of which are hereby incorporated by reference into this application.

[0002] The present disclosure relates to the field of air conditioners, and more particularly to wall-mounted air conditioners. [Background technology]

[0003] In the related art, the air intake of a wall-mounted air conditioner is located at its top, and in order to meet the requirement of suction from the top, the wall-mounted air conditioner must be located at a relatively large distance from the ceiling wall of the room, which results in low indoor space utilization and makes the indoor space appear more cramped. In addition, the wall-mounted air conditioner of the related art has the disadvantage of low heat exchange efficiency. Summary of the Invention [Problem to be solved by the invention]

[0004] An embodiment of the present disclosure proposes a wall-mounted air conditioner. [Means for solving the problem]

[0005] A wall-mounted air conditioner according to an embodiment of the present disclosure includes a casing, wherein an air duct is included within the casing, the air duct includes an intake passage and an exhaust passage connected to each other, the air duct has an intake port and an exhaust port, at least a portion of the intake port is directed toward the front of the wall-mounted air conditioner, and a first angle between a center line of the intake passage and a center line of the exhaust passage is greater than or equal to 10 degrees and less than or equal to 85 degrees.

[0006] By positioning at least a portion of the air inlet of the wall-mounted air conditioner according to the present disclosure on the front side of the casing, it is possible to allow ambient air (intake) to enter the air duct from approximately the front side of the casing. For example, ambient air (intake) may enter the air duct from directly in front of the casing, from the upper front side of the casing, or from the lower front side of the casing. Furthermore, ambient air may enter the air duct from at least two directions selected from the directly in front, the upper front, and the lower front side of the casing.

[0007] In other words, ambient air does not need to enter the air duct from directly above the casing. This significantly reduces or eliminates the distance between the wall-mounted air conditioner and the ceiling or wall of the room, improving the utilization rate of the indoor space and effectively reducing or eliminating the feeling of crampedness in the indoor space, especially in rooms at low altitudes.

[0008] Therefore, the wall-mounted air conditioner according to the embodiment of the present disclosure has very low requirements for installation space, and the installation space only needs to be large enough to accommodate the wall-mounted air conditioner; there is no need to ensure suction space above the wall-mounted air conditioner, which allows for an expanded range of application for wall-mounted air conditioners.

[0009] In some embodiments, the portion located in front of the air inlet is inclined obliquely upward from the vertical plane toward the wall surface (which can be understood as the mounting surface). In this way, when the user is standing on the floor in a room, the user cannot see the inside of the casing (wall-mounted air conditioner) from the air inlet, and the internal structure of the casing (wall-mounted air conditioner) is not exposed to the user, thereby improving the visual comfort of the user.

[0010] Furthermore, when suction is performed from the top, the space at the top is often limited and relatively narrow, limiting the suction volume. In the technical solution of the present application, at least a portion of the suction port is located at the front of the casing, so that air entering the air duct through the suction port can flow directly into the heat exchanger and fully exchange heat with the heat exchanger. In other words, the suction volume of the wall-mounted air conditioner is not limited by the narrow space at the top, and by suctioning from the front of the casing, the suction volume can be effectively increased, and the flow rate of air flowing through the heat exchanger can be significantly increased, greatly improving the heat exchange efficiency of the heat exchanger.

[0011] In the present application, at least a portion of the air inlet is located on the front surface of the casing, eliminating the need to provide a generally inverted-V-shaped heat exchanger below the air inlet, and also eliminating the need to provide a water tray at the lower end of the generally inverted-V-shaped heat exchanger with a width greater than the width of the generally inverted-V-shaped heat exchanger, since the water tray will block the flow of air to the heat exchanger and prevent substantial heat exchange with the air. Because at least a portion of the air inlet is located on the front surface of the casing, the water tray will not block the flow of air to the heat exchanger, and for example, the water tray will not pass through the airflow path to the heat exchanger, thereby significantly improving the heat exchange efficiency of the heat exchanger. In some embodiments, the water tray is provided below the heat exchanger.

[0012] Therefore, the wall-mounted air conditioner according to the embodiment of the present invention has the advantages of being easy to install, improving the utilization rate of indoor space, wide application range, and high heat exchange efficiency.

[0013] In some embodiments, a second angle between a center line of the outlet passage and the vertically upward direction is equal to or greater than 120 degrees and equal to or less than 155 degrees.

[0014] In some embodiments, the air duct wall of the air duct includes a first suction plate and a second suction plate arranged opposite each other, and a first blow-out plate and a second blow-out plate arranged opposite each other, and the suction air duct is formed between the first suction plate and the second suction plate, and the blow-out air duct is formed between the first blow-out plate and the second blow-out plate.

[0015] In some embodiments, one end of the outlet air duct is formed as the outlet port, the other end of the outlet air duct is formed as an air inlet port, a fan wheel is provided within the air duct, a plane passing through the rotation axis of the fan wheel and the upper edge of the air inlet port is a first plane, and a third angle between the first plane and a horizontal plane is greater than or equal to 60 degrees and less than or equal to 150 degrees.

[0016] In some embodiments, one end of the outlet air duct is formed as the outlet port, the other end of the outlet air duct is formed as an air inlet port, a fan wheel is provided within the air duct, a surface passing through the rotation axis of the fan wheel and the upper edge of the air inlet port is a first surface, a surface passing through the rotation axis of the fan wheel and the lower edge of the air inlet port is a second surface, and a fourth angle between the first surface and the second surface is greater than or equal to 120 degrees and less than or equal to 200 degrees.

[0017] In some embodiments, the highest point of the second suction plate is located below the highest point of the first suction plate, the air passage wall further includes a scroll tongue and an air introduction plate, both sides of the air introduction plate are connected to the first suction plate and the first outlet plate, both sides of the scroll tongue are connected to the second suction plate and the second outlet plate, and a fan wheel is provided between the scroll tongue and the air introduction plate.

[0018] In some embodiments, the minimum distance between the scroll tongue and the fan wheel is between 4 mm and 9 mm.

[0019] In some embodiments, the minimum distance between the air introduction plate and the fan wheel is between 4 mm and 8 mm.

[0020] In some embodiments, a fifth angle between a first flat plate portion adjacent to the outlet of the first blowing plate and a second flat plate portion adjacent to the outlet of the second blowing plate is greater than or equal to 5 degrees and less than or equal to 45 degrees.

[0021] In some embodiments, a sixth angle between the center line of the outlet passage and the second outlet plate is greater than 0 degrees and not greater than 30 degrees. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is a cross-sectional view of a wall-mounted air conditioner according to an embodiment of the present disclosure. [Figure 2] 1 is a cross-sectional view of a wall-mounted air conditioner according to an embodiment of the present disclosure. [Figure 3] 1 is a schematic configuration diagram of a wall-mounted air conditioner according to an embodiment of the present disclosure. [Figure 4] FIG. 1 is a cross-sectional view of a wall-mounted air conditioner according to a related art. DETAILED DESCRIPTION OF THE INVENTION

[0023] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following detailed description of the preferred embodiments of the present disclosure is provided with reference to the accompanying drawings, which are merely illustrative and are not to be construed as limiting the present disclosure.

[0024] In the related art, as shown in Figure 4, the air intake port of a wall-mounted air conditioner 1' is located at the top, and the distance between the top of the wall-mounted air conditioner 1' and the indoor ceiling wall must be large to form an intake space, so the wall-mounted air conditioner 1' cannot be installed in close contact with the indoor ceiling wall. The heat exchanger 10' of the wall-mounted air conditioner 1 is mounted around a cross-flow fan wheel 20'. In some embodiments, the approximately inverted V-shaped first portion 11' of the heat exchanger 10' is located above the cross-flow fan wheel 20', and the second portion 12' of the heat exchanger 10' is located in front of the cross-flow fan wheel 20'.

[0025] A water tray 30 is provided below the lower rear end 111' of the first section 11'. The water tray 30' faces the lower rear end 111' of the first section 11' in the vertical direction, and is located between the lower rear end 111' of the first section 11' and the cross-flow fan wheel 20'. The inventors recognized that if the lower rear end 111' of the first section 11' is blocked by the water tray 30', the lower rear end 111' of the first section 11' will not substantially exchange heat with the air, resulting in waste and reducing heat exchange efficiency.

[0026] An intake passage 50' is defined between the second section 12' and the front panel 40' of the wall-mounted air conditioner 1'. However, the inventors recognized that because most of the space in the front-to-rear direction of the wall-mounted air conditioner 1' is occupied by the heat exchanger 10', cross-flow fan wheel 20', and scroll casing 60', the intake passage 50' is relatively narrow, i.e., the flow rate of air flowing through the intake passage 50' is small, and therefore the heat exchange efficiency of the second section 12' is low.

[0027] A wall-mounted air conditioner 1 according to an embodiment of the present disclosure will be described below with reference to the drawings. As shown in FIGS. 1 to 3, the wall-mounted air conditioner 1 according to the embodiment of the present disclosure includes a casing 10. The casing 10 includes an air duct 30 including an inlet air duct 321 and an outlet air duct 322 connected to each other. The air duct 30 has an inlet 311 and an outlet 312. At least a portion of the inlet duct 311 faces the front surface 11 of the wall-mounted air conditioner 1. A first angle θ1 between a center line L2 of the inlet air duct 321 and a center line L1 of the outlet air duct 322 is 10 degrees or more and 85 degrees or less. This prevents a large change in the flow direction of air in the air duct 30, reduces air flow resistance, and allows the air to flow gently in the air duct 30, thereby further improving the cooling and heating effect of the wall-mounted air conditioner 1.

[0028] For example, the front surface 11 of the wall-mounted air conditioner 1 is the front surface 11 of the casing 10. Therefore, "at least a portion of the air inlet 311 facing the front surface 11 of the wall-mounted air conditioner 1" means that at least a portion of the air inlet 311 is provided on the front surface 11 of the casing 10. Here, the front surface 11 of the casing 10 is the surface visible when line of sight horizontally behind the casing 10, i.e., the surface of the casing 10 visible when line of sight horizontally behind the casing 10 is the front surface 11 of the casing 10. For example, when an observer's eyes are located at approximately the same horizontal height as the casing 10 and the observer is located in front of the casing 10, the surface of the casing 10 visible to the observer is the front surface 11 of the casing 10. The top surface 12 of the casing 10 is the surface located at the top of the casing 10 and is generally not visible to an observer located in front of the casing 10.

[0029] The front-to-back direction is indicated by arrow A in Figure 1, and the up-down direction is indicated by arrow B in Figure 1. For example, wall-mounted air conditioner 1 can be mounted on wall surface 2. The direction horizontally away from wall surface 2 is the true direction, and the direction horizontally away from wall surface 2 is the true rear direction.

[0030] By positioning at least a portion of the air inlet of the wall-mounted air conditioner according to the present disclosure on the front side of the casing, it is possible to allow ambient air (intake) to enter the air duct from approximately the front side of the casing. For example, the ambient air (intake) may enter the air duct from directly in front of the casing, from the upper front side of the casing, or from the lower front side of the casing. Furthermore, the ambient air may enter the air duct from at least two directions selected from the directly in front, the upper front side, and the lower front side of the casing.

[0031] In other words, ambient air does not need to enter the air duct from directly above the casing. This significantly reduces or eliminates the distance between the wall-mounted air conditioner and the ceiling or wall of the room, improving the utilization rate of the indoor space and effectively reducing or eliminating the feeling of crampedness in the indoor space, especially in rooms at low altitudes.

[0032] Therefore, the wall-mounted air conditioner according to the embodiment of the present disclosure has very low requirements for installation space, and the installation space only needs to be large enough to accommodate the wall-mounted air conditioner; there is no need to ensure suction space above the wall-mounted air conditioner, which allows for an expanded range of application for wall-mounted air conditioners.

[0033] In some embodiments, the portion located in front of the air inlet 311 is inclined obliquely upward relative to the vertical plane toward the wall surface 2 (which can be understood as the mounting surface). In this way, when the user is standing on the floor in a room, the user cannot see the inside of the casing 10 (wall-mounted air conditioner 1) from the air inlet 311, and the internal structure of the casing 10 (wall-mounted air conditioner 1) is not exposed to the user, thereby improving the visual comfort of the user.

[0034] Furthermore, when suction is performed from the top, the space at the top is often limited and relatively narrow, limiting the suction volume. In the technical solution of the present application, at least a portion of the suction port is located at the front of the casing, so that air entering the air duct through the suction port can flow directly into the heat exchanger and fully exchange heat with the heat exchanger. In other words, the suction volume of the wall-mounted air conditioner is not limited by the narrow space at the top, and by suctioning from the front of the casing, the suction volume can be effectively increased, and the flow rate of air flowing through the heat exchanger can be significantly increased, greatly improving the heat exchange efficiency of the heat exchanger.

[0035] In the present application, at least a portion of the suction port 311 is located on the front surface of the casing 10, eliminating the need to provide a generally inverted-V-shaped heat exchanger below the suction port 311, and also eliminating the need to provide a water tray at the lower end of the generally inverted-V-shaped heat exchanger with a width greater than the width of the generally inverted-V-shaped heat exchanger, since the water tray will block the flow of air from a portion of the heat exchanger. Because at least a portion of the suction port 311 is located on the front surface of the casing 10, the water tray 10 does not block the flow of air to the heat exchanger. For example, the water tray 15 does not pass through the flow path of the air to the heat exchanger 20, thereby significantly improving the heat exchange efficiency of the heat exchanger 20. In some embodiments, the water tray 15 is located below the heat exchanger 20.

[0036] Therefore, the wall-mounted air conditioner according to the embodiment of the present disclosure has the advantages of being easy to install, improving the utilization rate of indoor space, wide application range, and high heat exchange efficiency.

[0037] In some embodiments, the first angle θ1 is greater than or equal to 20 degrees and less than or equal to 80 degrees. In some embodiments, the first angle θ1 is greater than or equal to 40 degrees and less than or equal to 75 degrees. In some embodiments, the first angle θ1 is greater than or equal to 60 degrees and less than or equal to 75 degrees. In some embodiments, the first angle θ1 is greater than or equal to 70 degrees and less than or equal to 75 degrees, which allows air to flow gently within the air duct 30 and further improves the heating and cooling effect of the wall-mounted air conditioner 1.

[0038] In some embodiments, the first angle θ1 may be, for example, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, 65 degrees, 70 degrees, 71 degrees, 72 degrees, 73 degrees, 74 degrees, 75 degrees, 76 degrees, 77 degrees, 78 degrees, 79 degrees, 80 degrees, or 85 degrees. As shown in FIGS. 1 to 3 , a wall-mounted air conditioner 1 according to an embodiment of the present disclosure includes a casing 10 and a heat exchanger 20. The casing 10 can be mounted on a wall surface 2 of a room. The distance between the top surface 12 of the casing 10 and the ceiling wall 3 of the room is 20 centimeters or less. In other words, the minimum vertical distance between the casing 10 and the ceiling wall 3 of the room is 20 centimeters or less. This can further improve the utilization rate of the indoor space. In some embodiments, the distance between the top surface 12 of the casing 10 and the ceiling wall 3 of the room is 15 centimeters or less. In some embodiments, the distance between the top surface 12 of the casing 10 and the ceiling wall 3 of the room is 10 centimeters or less. In some embodiments, the distance between the top surface 12 of the casing 10 and the ceiling wall 3 of the room is 8 centimeters or less. In some embodiments, the distance between the top surface 12 of the casing 10 and the ceiling wall 3 of the room is 5 centimeters or less.

[0039] As shown in Figures 1 to 3, the upper edge of the front surface 11 of the casing 10 is connected to the rear surface 13 of the casing 10 via the top surface 12 of the casing 10. The lower edge of the front surface 11 of the casing 10 is directly connected to the rear surface 13 of the casing 10, or the lower edge of the front surface 11 of the casing 10 is connected to the rear surface 13 of the casing 10 via the bottom surface 14 of the casing 10, thereby making the appearance of the casing 10 and the wall-mounted air conditioner 1 more refined and aesthetically pleasing.

[0040] The top surface 12 may be a horizontal surface, i.e., the top surface 12 may extend horizontally rearward from the front surface 11, and the top surface 12 cannot be seen when line of sight horizontally rearward. Alternatively, the top surface 12 may be an inclined surface that slopes rearward and downward. In other words, the top surface 12 may be an inclined surface, and the top surface 12 may extend rearward and downward from the front surface 11, and the top surface 12 cannot be seen when line of sight horizontally rearward.

[0041] The heat exchanger 20 is disposed within the casing 10. An air duct 30 is provided within the casing 10, and the air duct 30 has an air inlet 311 and an air outlet 312. In some embodiments, the position of the air outlet 312 is lower than the air inlet 311, which can make the structure of the wall-mounted air conditioner 1 more rational.

[0042] 1 and 2, the wall-mounted air conditioner 1 further includes a fan wheel 40 provided in the air duct 30, and the heat exchanger 20 is provided between the air inlet 311 and the fan wheel 40. By providing the fan wheel 40 in the air duct 30, the flow rate and flow velocity of the air flowing through the heat exchanger 20 can be improved, further improving the heat exchange efficiency of the heat exchanger 20 and the wall-mounted air conditioner 1.

[0043] 1 and 2, the fan wheel 40 is provided at the boundary between the intake air duct 321 and the discharge air duct 322. This allows for a more rational structure of the wall-mounted air conditioner 1. For example, a portion of the fan wheel 40 may be provided in the intake air duct 321, and the remaining portion of the fan wheel 40 may be provided in the discharge air duct 322.

[0044] 1 and 2, in a vertical plane perpendicular to the longitudinal direction of air duct 30, a second angle θ2 between center line L1 of outlet air duct 322 and the vertically upward direction is equal to or greater than 120 degrees and equal to or less than 155 degrees. Air coming out of outlet air duct 322 flows downward and forward, i.e., the wall-mounted air conditioner 1 discharges cool air (hot air) downward and forward, further improving the cooling and heating effect of the wall-mounted air conditioner 1. The vertically upward direction is indicated by arrow D in FIG. 1. The longitudinal direction of air duct 30 is indicated by arrow C in FIG. 3, and the longitudinal direction of the wall-mounted air conditioner 1 may be the same as the longitudinal direction of air duct 30.

[0045] Furthermore, mounting spaces may be provided in front and / or behind the outlet air duct 322 so that components that are originally mounted on the longitudinal sides (e.g., the left and / or right sides) of the air duct 30 can be mounted within the mounting spaces. This effectively reduces the length of the wall-mounted air conditioner 1, further reducing the difficulty of mounting the wall-mounted air conditioner 1 and the space required for mounting. The left-right direction is indicated by arrow E in Figure 3, and electrical control components, ducts, lines, throttle components, etc. can be mounted in the mounting spaces.

[0046] In some embodiments, the second angle θ2 is greater than or equal to 130 degrees and less than or equal to 150 degrees. In some embodiments, the second angle θ2 is greater than or equal to 140 degrees and less than or equal to 145 degrees. This further optimizes the flow direction of the cool air (hot air) discharged from the wall-mounted air conditioner 1, thereby further improving the cooling and heating effect of the wall-mounted air conditioner 1.

[0047] In some embodiments, the second angle θ2 may be, for example, 120 degrees, 125 degrees, 130 degrees, 135 degrees, 140 degrees, 141 degrees, 142 degrees, 143 degrees, 144 degrees, 145 degrees, 150 degrees, or 155 degrees.

[0048] 1 and 2, the air passage wall of outlet airflow duct 322 includes first outlet plate 325 and second outlet plate 326 provided opposite each other, and the air passage wall of inlet airflow duct 321 includes first suction plate 323 and second suction plate 324 provided opposite each other. Outlet airflow duct 322 is formed between first outlet plate 325 and second outlet plate 326. Inlet airflow duct 321 is formed between first suction plate 323 and second suction plate 324.

[0049] In some embodiments, at least a portion of the first blow-out plate 325 is located behind at least a portion of the second blow-out plate 326, and at least a portion of the first suction plate 323 is located above at least a portion of the second suction plate 324. The highest point of the second suction plate 324 is located below the highest point of the first suction plate 323, which allows the structure of the air passage 30 to be more rational.

[0050] One end of outlet airflow duct 322 is formed as outlet port 312, and the other end of outlet airflow duct 322 is formed as an air inlet port (the opening of outlet airflow duct 322 adjacent to inlet airflow duct 321, i.e., the air inlet port of outlet airflow duct 322). A plane passing through the rotation axis of fan wheel 40 and the upper edge of the air inlet port is a first plane A1, and a plane passing through the rotation axis of fan wheel 40 and the lower edge of the air inlet port is a second plane A2. The projection of the rotation axis of fan wheel 40 onto a vertical plane perpendicular to the longitudinal direction of airflow duct 30 is base point O in FIG. 1, the projection of the upper edge of the air inlet port onto the vertical plane perpendicular to the longitudinal direction of airflow duct 30 is first boundary point F in FIG. 1, and the projection of the lower edge of the air inlet port onto the vertical plane perpendicular to the longitudinal direction of airflow duct 30 is second boundary point P in FIG. 1. The first plane A1 passes through the base point O and the first boundary point F, and the second plane A2 passes through the base point O and the second boundary point P. A third angle θ3 between the first plane A1 and the horizontal plane A3 is equal to or greater than 60 degrees and equal to or less than 150 degrees.

[0051] In order to improve the cooling and heating effect of wall-mounted air conditioner 1, at least a part of the intake port of outlet air duct 322 (air inlet port of outlet air duct 322) can be opened forward and upward, so that air flowing through intake port 311 and intake air duct 321 can more smoothly enter outlet air duct 322. In other words, in order to improve the cooling and heating effect of wall-mounted air conditioner 1, at least a part of the outlet port of intake air duct 321 (opening of intake air duct 321 adjacent to outlet air duct 322) can be opened backward and downward, so that air in intake air duct 321 can more smoothly enter outlet air duct 322.

[0052] In some embodiments, the third angle θ3 is not less than 70 degrees and not more than 130 degrees. In some embodiments, the third angle θ3 is not less than 80 degrees and not more than 120 degrees. In some embodiments, the third angle θ3 is not less than 90 degrees and not more than 110 degrees. The air flowing through the air inlet 311 and the air intake duct 321 can flow more smoothly into the air outlet duct 322, thereby further improving the cooling and heating effect of the wall-mounted air conditioner 1.

[0053] In some embodiments, the third angle θ3 may be, for example, 60 degrees, 65 degrees, 70 degrees, 75 degrees, 80 degrees, 85 degrees, 90 degrees, 92 degrees, 95 degrees, 100 degrees, 102 degrees, 105 degrees, 110 degrees, 115 degrees, 120 degrees, 125 degrees, 130 degrees, 135 degrees, 140 degrees, 145 degrees, or 150 degrees.

[0054] 1 and 2, the fourth angle θ4 between the first surface A1 and the second surface A2 is equal to or greater than 120 degrees and equal to or less than 200 degrees. That is, the angle between the straight line OF and the straight line OP is equal to or greater than 120 degrees and equal to or less than 200 degrees.

[0055] By making the intake port of the outlet air duct 322 have a large intake angle, more air enters the outlet air duct 322, ensuring a large air flow rate in the outlet air duct 322, allowing the wall-mounted air conditioner 1 to have a larger discharge volume, and further improving the heating and cooling effect of the wall-mounted air conditioner 1.

[0056] In some embodiments, the fourth angle θ4 is greater than or equal to 130 degrees and less than or equal to 190 degrees. In some embodiments, the fourth angle θ4 is greater than or equal to 140 degrees and less than or equal to 180 degrees. In some embodiments, the fourth angle θ4 is greater than or equal to 155 degrees and less than or equal to 175 degrees. This further ensures a high air flow rate in the outlet air duct 322, allowing the wall-mounted air conditioner 1 to have a larger discharge volume and further improving the heating and cooling effect of the wall-mounted air conditioner 1. The fourth angle θ4 may be the suction angle of the fan wheel 40.

[0057] In some embodiments, the fourth angle θ4 may be 120 degrees, 125 degrees, 130 degrees, 135 degrees, 140 degrees, 145 degrees, 150 degrees, 152 degrees, 155 degrees, 157 degrees, 160 degrees, 162 degrees, 165 degrees, 167 degrees, 170 degrees, 172 degrees, 175 degrees, 180 degrees, 185 degrees, 190 degrees, 195 degrees, or 200 degrees.

[0058] 1 and 2, first air outlet plate 325 includes first flat plate portion 3251 adjacent to air outlet 312, and second air outlet plate 326 includes second flat plate portion 3261 adjacent to air outlet 312. The inner edges of first flat plate portion 3251 and second flat plate portion 3261, when projected onto a vertical plane perpendicular to the longitudinal direction of air duct 30, are both straight lines.

[0059] Furthermore, the fifth angle θ5 between the first flat plate portion 3251 and the second flat plate portion 3261 is equal to or greater than 5 degrees and equal to or less than 45 degrees. When the air flow rate in the outlet air duct 322 (the amount of air discharged from the outlet air duct 322) can be ensured, reducing the space occupied by the outlet air duct 322 provides sufficient installation space in front of and / or behind the outlet air duct 322, allowing components that would normally be installed on the longitudinal sides of the air duct 30 (for example, the left and / or right sides) to be installed in that installation space. This effectively reduces the length of the wall-mounted air conditioner 1, further reducing the difficulty of installing the wall-mounted air conditioner 1 and the space required for installation.

[0060] In some embodiments, the fifth angle θ5 is greater than or equal to 10 degrees and less than or equal to 40 degrees. In some embodiments, the fifth angle θ5 is greater than or equal to 10 degrees and less than or equal to 30 degrees. In some embodiments, the fifth angle θ5 is greater than or equal to 10 degrees and less than or equal to 20 degrees. Not only can the air flow rate in the outlet air duct 322 be further improved, but the installation space in front of and / or behind the outlet air duct 322 can be increased to further improve the heating and cooling effect of the wall-mounted air conditioner 1, thereby further reducing the length of the wall-mounted air conditioner 1 and the difficulty and space required for installation of the wall-mounted air conditioner 1.

[0061] In some embodiments, the fifth angle θ5 may be, for example, 5 degrees, 10 degrees, 11 degrees, 12 degrees, 13 degrees, 14 degrees, 15 degrees, 16 degrees, 17 degrees, 18 degrees, 19 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, or 45 degrees.

[0062] The sixth angle θ6 between the center line L1 of the outlet air duct 322 and the second flat plate portion 3261 is greater than 0 degrees and equal to or less than 30 degrees. When the air flow rate in the outlet air duct 322 (the amount of air discharged from the outlet air duct 322) can be ensured, reducing the space occupied by the outlet air duct 322 provides sufficient installation space in front of and / or behind the outlet air duct 322, allowing components that would normally be installed on the longitudinal sides of the air duct 30 (e.g., the left and / or right sides) to be installed in that installation space. This effectively reduces the length of the wall-mounted air conditioner 1, further reducing the difficulty of installing the wall-mounted air conditioner 1 and the space required for installation.

[0063] In some embodiments, the sixth angle θ6 is equal to or greater than 1 degree and equal to or less than 25 degrees. In some embodiments, the sixth angle θ6 is equal to or greater than 2 degrees and equal to or less than 20 degrees. In some embodiments, the sixth angle θ6 is equal to or greater than 3 degrees and equal to or less than 10 degrees. Not only can the air flow rate in the outlet air duct 322 be further improved, but the installation space in front of and / or behind the outlet air duct 322 can be increased to further improve the heating and cooling effect of the wall-mounted air conditioner 1, thereby further reducing the length of the wall-mounted air conditioner 1 and the difficulty and space required for installation of the wall-mounted air conditioner 1.

[0064] In some embodiments, the sixth angle θ6 may be, for example, 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, or 30 degrees.

[0065] 1 and 2, the air passage wall of the air passage 30 further includes a scroll tongue 327 and an air introduction plate 328. A first suction plate 323 and a first outlet plate 325 are connected to both sides of the air introduction plate 328. A second suction plate 324 and a second outlet plate 326 are connected to both sides of the scroll tongue 327. The fan wheel 40 is located between the scroll tongue 327 and the air introduction plate 328.

[0066] The minimum distance H1 between the air introduction plate 328 and the fan wheel 40 is 4 mm to 8 mm. In some embodiments, the minimum distance H1 between the air introduction plate 328 and the projected outer contour 41 of the fan wheel 40 is 4 mm to 8 mm. When ensuring the flow rate of air flowing through the outlet air duct 322 (the amount of air blown out of the outlet air duct 322), the space occupied by the air duct 30 can be reduced, and the space occupied by the wall-mounted air conditioner 1 can also be reduced.

[0067] In some embodiments, the minimum distance H1 between the air introduction plate 328 and the fan wheel 40 is not less than 5 mm and not more than 7 mm. In some embodiments, the minimum distance H1 between the air introduction plate 328 and the fan wheel 40 is not less than 5.5 mm and not more than 6.5 mm. In some embodiments, the minimum distance H1 between the air introduction plate 328 and the fan wheel 40 is not less than 5.6 mm and not more than 5.9 mm. When ensuring the flow rate of air flowing through the outlet air duct 322 (the amount of air discharged from the outlet air duct 322), the space occupied by the air duct 30 can be reduced, and the space occupied by the wall-mounted air conditioner 1 can be reduced.

[0068] In some embodiments, the minimum distance H1 between the air introduction plate 328 and the fan wheel 40 may be, for example, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 5.6 mm, 5.7 mm, 5.75 mm, 5.8 mm, 5.9 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, or 8 mm.

[0069] The minimum distance H 1 between the air introduction plate 328 and the fan wheel 40 refers to the minimum value of the distance between any point on the air introduction plate 328 and any point on the outer contour 41 of the fan wheel 40 .

[0070] As shown in FIGS. 1 and 2 , the minimum distance H2 between the scroll tongue 327 and the fan wheel 40 is 4 mm or more and 9 mm or less. This increases the air flow rate in the outlet air duct 322, allowing the air to enter the outlet air duct 322 more smoothly, resulting in a larger blowout volume for the wall-mounted air conditioner 1 and further improving the heating and cooling effects of the wall-mounted air conditioner 1. In some embodiments, the minimum distance H2 between the scroll tongue 327 and the fan wheel 40 is 6 mm or more and 8 mm or less. In some embodiments, the minimum distance H2 between the scroll tongue 327 and the fan wheel 40 is 7.1 mm or more and 7.9 mm or less. This increases the air flow rate in the outlet air duct 322, allowing the air to enter the outlet air duct 322 more smoothly, resulting in a larger blowout volume for the wall-mounted air conditioner 1 and further improving the heating and cooling effects of the wall-mounted air conditioner 1. In some embodiments, the minimum distance H2 between the scroll tongue 327 and the fan wheel 40 may be, for example, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.1 mm, 7.2 mm, 7.3 mm, 7.4 mm, 7.5 mm, 7.6 mm, 7.7 mm, 7.8 mm, 7.9 mm, 8 mm, 8.5 mm, or 9 mm.

[0071] In describing the present disclosure, the orientations or positional relationships indicated by terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" are orientations or positional relationships shown based on the drawings, and are intended merely to explain and simplify the disclosure, and are not intended to indicate or imply that the depicted devices or elements necessarily have a particular orientation or are constructed and operated in a particular orientation, and therefore should not be understood as limitations on the present disclosure.

[0072] Additionally, the terms "first" and "second" are used for descriptive purposes only and do not denote or imply relative importance, and are not to be understood as implicitly indicating the number of technical features depicted. Thus, a feature qualified as "first" or "second" can explicitly or implicitly include at least one of that feature. In the description of this disclosure, "plurality" means at least two, e.g., two, three, etc., unless otherwise specifically and explicitly limited.

[0073] In the present disclosure, unless otherwise clearly specified or limited, the terms "attached," "coupled," "connected," "fixed," etc. should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, an internal communication between two elements, or an interactive relationship between two elements. Those skilled in the art can understand the specific meanings of the above terms in the present disclosure according to specific circumstances.

[0074] In this disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first feature and the second feature are in direct contact with each other, or that the first feature and the second feature are in indirect contact with each other via an intermediate medium. Furthermore, a first feature being "above," "above," and "on top of" a second feature may simply indicate that the first feature is directly above or diagonally above the second feature, or that the horizontal height of the first feature is higher than that of the second feature. A first feature being "below," "below," and "below" a second feature may simply indicate that the first feature is directly below or diagonally below the second feature, or that the horizontal height of the first feature is lower than that of the second feature.

[0075] In this disclosure, the terms "one embodiment," "some embodiments," "example," "particular example," or "some examples" mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, general descriptions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or advantages described may be combined in any suitable manner in any one or more embodiments or examples.

[0076] Furthermore, all embodiments of the present disclosure may be implemented independently. As long as they do not conflict with each other, those skilled in the art can combine or combine different embodiments or examples and features of different embodiments or examples described herein. [Explanation of symbols]

[0077] Wall-mounted air conditioner 1, wall 2, ceiling wall 3, Casing 10, front surface 11, top surface 12, back surface 13, bottom surface 14, water tray 15, heat exchanger 20, Air duct 30, intake port 311, air outlet 312, Intake air duct 321, outlet air duct 322, A first suction plate 323, a second suction plate 324, a first blow-out plate 325, a first flat plate portion 3251, a second blow-out plate 326, a second flat plate portion 3261, a scroll tongue 327, an air introduction plate 328, Fan wheel 40, outer contour 41, The center line L1 of the outlet air duct 322, the center line L2 of the intake air duct 321, First face A1, second face A2, horizontal plane A3, base point O, first boundary point F, second boundary point P, A minimum distance H1 between the air introduction plate 328 and the fan wheel 40, and a minimum distance H2 between the scroll tongue 327 and the fan wheel 40.

Claims

1. A wall-mounted air conditioner, a casing, an air duct in which a fan wheel is provided, the air duct including an intake air duct and an outlet air duct smoothly connected to each other, the air duct having an intake port and an outlet port, at least a portion of the intake port facing a front surface of the wall-mounted air conditioner, a first angle between a center line of the intake air duct and a center line of the outlet air duct being equal to or greater than 10 degrees and equal to or less than 85 degrees; the air passage wall of the air passage includes a first suction plate and a second suction plate provided opposite to each other, and a first blow-out plate and a second blow-out plate provided opposite to each other, the suction air passage is formed between the first suction plate and the second suction plate, and the blow-out air passage is formed between the first blow-out plate and the second blow-out plate, the highest point of the second suction plate is located below the highest point of the first suction plate, the air passage wall further includes an air introduction plate, both sides of which are connected to the first suction plate and the first discharge plate, and the first suction plate has a bent portion bent so as to bring the air introduction plate close to the fan wheel. A wall-mounted air conditioner characterized by:

2. a second angle between a center line of the outlet air duct and a vertically upward direction is equal to or greater than 120 degrees and equal to or less than 155 degrees; 2. A wall-mounted air conditioner according to claim 1.

3. one end of the outlet air duct is formed as the outlet port, and the other end of the outlet air duct is formed as an air inlet port, a plane passing through a rotation axis of the fan wheel and an upper edge of the air inlet port is a first plane, and a third angle between the first plane and a horizontal plane is equal to or greater than 60 degrees and equal to or less than 150 degrees; 3. A wall-mounted air conditioner according to claim 1 or 2.

4. one end of the outlet air duct is formed as the outlet port, and the other end of the outlet air duct is formed as an air inlet port, a plane passing through the rotation axis of the fan wheel and an upper edge of the air inlet port is a first plane, a plane passing through the rotation axis of the fan wheel and a lower edge of the air inlet port is a second plane, and a fourth angle between the first plane and the second plane is 120 degrees or more and 200 degrees or less; 3. A wall-mounted air conditioner according to claim 1 or 2.

5. The air duct wall further includes a scroll tongue, both sides of which are connected to the second suction plate and the second blowing plate, and a fan wheel is provided between the scroll tongue and the air introduction plate.

2. A wall-mounted air conditioner according to claim 1.

6. the minimum distance between the scroll tongue and the fan wheel is 4 mm or more and 9 mm or less; 6. A wall-mounted air conditioner according to claim 5.

7. the minimum distance between the air intake plate and the fan wheel is 4 mm or more and 8 mm or less; 2. A wall-mounted air conditioner according to claim 1.

8. a fifth angle between a first flat plate portion adjacent to the air outlet of the first air outlet plate and a second flat plate portion adjacent to the air outlet of the second air outlet plate is 5 degrees or more and 45 degrees or less; 2. A wall-mounted air conditioner according to claim 1.

9. a sixth angle between the center line of the outlet air duct and the second outlet plate is greater than 0 degrees and not greater than 30 degrees; 2. A wall-mounted air conditioner according to claim 1.

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