Air conditioner

Abstract

The utility model relates to air conditioning technical field, more particularly, relate to a kind of air conditioner, it includes shell and axial flow fan blade, shell is provided with air inlet and air outlet;Axial flow fan blade is set in shell, for making air from air inlet into shell, then, from air outlet, axial flow fan blade's axis and air outlet's center line coaxially set;Wherein, the ratio of the diameter D1 of axial flow fan blade and the width H1 of shell satisfies: 0.65 The air conditioner of the utility model can improve the air volume of the air conditioner, efficiently regulate the ambient temperature, and improve the user experience.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and more specifically, to an air conditioner. Background Technology

[0002] An air conditioner is a common appliance used to regulate indoor temperature. Air conditioners typically include a casing, an evaporator, and fan blades. The casing has an air inlet and an air outlet. The evaporator and fan blades are both housed within the casing. The fan blades allow air to enter the casing through the air inlet, flow through the evaporator for heat exchange, and then be blown out through the air outlet. This allows the ambient temperature to be regulated using the air that has undergone heat exchange with the evaporator.

[0003] However, the air conditioners provided by the related technologies have a small air volume, low efficiency in regulating ambient temperature, and a poor user experience. Utility Model Content

[0004] The problem solved by this invention is how to increase the air volume of an air conditioner in order to efficiently regulate the ambient temperature and improve the user experience.

[0005] To solve the above problems, this utility model provides an air conditioner, which includes: The housing is equipped with an air inlet and an air outlet. An axial flow fan blade, housed within the casing, directs air through the inlet and out the outlet. The axis of the axial flow fan blade is coaxial with the centerline of the outlet. The ratio of the diameter D1 of the axial flow fan blade to the width H1 of the casing satisfies: 0.65 < D1 / H1 ≤ 0.875, where the width H1 of the casing refers to the width of the casing in the left-right direction.

[0006] Optimizing the ratio between the diameter of the axial fan blades and the width of the casing can effectively increase the air volume of the air conditioner.

[0007] In an optional implementation, the ratio of the diameter D1 of the axial fan blade to the width H1 of the casing satisfies: 0.8 ≤ D1 / H1; The diameter D1 of the axial flow fan blade is 500-550mm.

[0008] Further optimizing the ratio of the diameter of the axial fan blades to the width of the casing can ensure a sufficiently large air volume, significantly improve the efficiency of regulating ambient temperature, and enhance the user experience.

[0009] It also makes it easy to make full use of the installation space inside the casing and select an axial flow fan blade of appropriate size to ensure a sufficiently large air volume.

[0010] In an optional embodiment, the diameter D1 of the axial-flow fan blade is 510-526 mm, and the ratio of the diameter D1 of the axial-flow fan blade to the width H1 of the housing satisfies: D1 / H1=0.8.

[0011] Such arrangement can not only ensure that the air conditioner has a sufficiently large air volume, but also ensure that the overall size of the air conditioner is controllable, making the air conditioner overall relatively miniaturized and not occupying too large installation space.

[0012] In an optional embodiment, the housing includes an air duct, the axial-flow fan blade is located inside the air duct, the width H2 of the inner cavity of the air duct satisfies: 500<H2≤560mm, and the ratio of the inner cavity width H2 of the air duct to the diameter D1 of the axial-flow fan blade satisfies: 1<H2 / D1≤1.120.

[0013] Setting the inner cavity width of the air duct to be larger than the diameter of the axial-flow fan blade can improve the problem that the airflow is interfered and cannot be blown out smoothly when flowing through the inner cavity wall of the air duct, thereby ensuring a sufficiently large air volume.

[0014] In an optional embodiment, the area size of the air inlet is greater than or equal to the area size of the air outlet.

[0015] Providing an air inlet with a relatively large size can ensure a sufficiently large incoming air volume, and further increase the final outgoing air volume by increasing the incoming air volume.

[0016] In an optional embodiment, the width W1 of the air inlet is equal to the width W2 of the air outlet; or, the ratio of the width W1 of the air inlet to the width H2 of the inner cavity of the air duct satisfies: 0.910<W1 / H2≤1.060, and the ratio of the width W2 of the air outlet to the width H2 of the inner cavity of the air duct satisfies: 0.910<W2 / H2≤1.060; The height L1 of the air inlet is greater than the height L2 of the air outlet.

[0017] Optimizing the widths of the air inlet and the air outlet to make the most of the width space on the direct airflow path, so that the air entering from the air inlet can be blown out from the air outlet as unobstructed as possible, reducing the influence of wind noise and wind resistance, and increasing the air volume.

[0018] Moreover, the height space of the housing is fully utilized to provide an air inlet with a larger size, ensuring that the air conditioner has a relatively large incoming air volume, and the outgoing air volume thereof is increased by the increase of the incoming air volume.

[0019] In an optional embodiment, the width W1 of the air inlet is 510-530 mm, and the height L1 of the air inlet is 920-940 mm.

[0020] This design allows for full utilization of the height space of the casing, enabling the installation of a sufficiently large air inlet, thereby ensuring a large air intake volume for the air conditioner and increasing its air output volume through the increase in air intake volume.

[0021] In an optional implementation, the width W2 of the air outlet is 510-530mm, and the height L2 of the air outlet is 500-530mm.

[0022] Optimizing the height and width of the air outlet can improve the problem of airflow interference from the casing, thereby ensuring a sufficiently large airflow.

[0023] In an optional implementation, the air conditioner includes only one axial fan blade, one air inlet, and one air outlet.

[0024] By installing only one axial fan blade inside the casing, the cost of the air conditioner can be reduced by decreasing the number of fan blades, and assembly steps can be reduced to improve the production efficiency of the air conditioner. The corresponding installation of one air inlet and one air outlet reduces air loss during the entry and exit of the casing, ensuring a sufficiently large air volume.

[0025] In an optional embodiment, the axial width H3 of the axial fan blade is 90-110 mm; the ratio of the axial width H3 of the axial fan blade to the front-to-back width H4 of the housing satisfies: 0.176 < H3 / H4 < 0.225.

[0026] Optimizing the axial width of the axial fan blades can, on the one hand, improve the problem of excessively large axial dimensions of the axial fan blades, which occupy too much internal installation space and lead to an increase in the front and rear dimensions of the air conditioner. On the other hand, it can improve the problem of increased friction between the axial fan blades and the air, reduce additional energy loss, and improve the problem of reduced efficiency.

[0027] In an optional embodiment, the axial fan blade is disposed between the air inlet and the air outlet, and the distance H5 from the axial fan blade to the air outlet is less than the distance H6 from the axial fan blade to the air inlet.

[0028] The axial fan blades are positioned between the air inlet and the air outlet to ensure that the air entering the housing from the air inlet flows through the axial fan blades and is blown out from the air outlet. By configuring the distance between the axial fan blades and the air outlet to be smaller, it is possible to ensure that the air after heat exchange is blown out from the air outlet efficiently, shortening the path of the air from the axial fan blades to the air outlet, reducing air volume loss, and ensuring a sufficiently large air volume. Attached Figure Description

[0029] Figure 1 This is a cross-sectional view of the air conditioner in an embodiment of this utility model; Figure 2 This is a schematic diagram of the air conditioner in the embodiment of the present invention from a first-view perspective; Figure 3This is a schematic diagram of the air conditioner in the embodiment of the present invention from a second perspective; Figure 4 The graph illustrates the ratio of the diameter D1 of different axial flow fan blades to the width H1 of the casing as a function of the air volume growth rate.

[0030] Explanation of reference numerals in the attached figures: 010-Air conditioner; 100-Casing; 110-Air inlet; 120-Air outlet; 130-Air duct; 200-Axial fan blade. Detailed Implementation

[0031] Air conditioners provided by related technologies typically include a casing, an evaporator, and fan blades. The casing is provided with an air inlet and an air outlet. The evaporator and fan blades are both assembled inside the casing. The fan blades are used to allow air to enter the casing from the air inlet, flow through the evaporator for heat exchange, and then be blown out from the air outlet. The ambient temperature can be regulated by using the air that has undergone heat exchange in the evaporator. The fan blades include cross-flow fan blades or axial flow fan blades.

[0032] However, the air conditioners provided by the related technologies have relatively small air volume, resulting in low efficiency in regulating ambient temperature and a poor user experience.

[0033] To address the aforementioned issues, this embodiment provides an air conditioner that can increase the airflow of the air conditioner to efficiently regulate the ambient temperature and improve the user experience.

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0035] Please refer to Figure 1 In this embodiment, the air conditioner 010 can refer to an indoor cabinet air conditioner, which includes a housing 100, an evaporator (not shown in the figure), and an axial fan blade 200. The housing 100 is provided with an air inlet 110 and an air outlet 120. The evaporator and the axial fan blade 200 are both assembled inside the housing 100. The axis of the axial fan blade 200 is coaxially arranged with the center line of the air outlet 120 and is used to allow air to enter the housing 100 from the air inlet 110, flow through the evaporator for heat exchange, and then be blown out from the air outlet 120.

[0036] Optionally, the air inlet 110 and the air outlet 120 are distributed on both sides of the housing 100 in the front-rear direction.

[0037] Optionally, the ratio of the diameter D1 of the axial fan blade 200 to the width H1 of the casing 100 satisfies: 0.65 < D1 / H1 ≤ 0.875, for example: 0.675, 0.700, 0.725, 0.750, 0.775, 0.800, 0.825, 0.850, 0.875, etc., without specific limitations here.

[0038] Optimizing the ratio between the diameter of the axial fan blade 200 and the width of the housing 100 can effectively increase the air volume of the air conditioner 010.

[0039] It should be noted that the diameter D1 of the aforementioned axial flow fan blade 200 may refer to the maximum diameter of the axial flow fan blade 200.

[0040] In other embodiments, the diameter D1 of the axial fan blade 200 may also refer to the average diameter of the axial fan blade 200.

[0041] Optionally, the ratio of the diameter D1 of the axial fan blade 200 to the width H1 of the casing 100 satisfies: 0.8 ≤ D1 / H1.

[0042] Further optimization of the ratio of the diameter of the axial fan blade 200 to the width of the housing 100 can further ensure a sufficiently large air volume, fully improve the efficiency of regulating ambient temperature, and enhance the user experience.

[0043] Optionally, the width H1 of the housing 100 refers to the width of the housing 100 in the left-right direction. Of course, in other embodiments, the width H1 of the housing 100 may also refer to the width of the housing 100 in the height direction.

[0044] It should be noted that the left-right, front-back, and height directions of the shell 100 are perpendicular to each other.

[0045] It should also be noted that the left-right, front-back, and height directions mentioned above refer to the absolute directions of the air conditioner 010 after it is installed in place, and these directions will not change as the air conditioner 010 is being moved or transported.

[0046] Optionally, the diameter D1 of the axial fan blade 200 is 500-550mm, such as 500mm, 505mm, 510mm, 518mm, 525mm, 530mm, 535mm, 540mm, 545mm, 550mm, etc., and no specific limitation is made here. This arrangement makes it easier to make full use of the installation space inside the housing 100 and select an axial fan blade 200 of appropriate size to ensure a sufficiently large air volume.

[0047] Optionally, the diameter D1 of the axial flow fan blade 200 is 510-526mm, and the ratio of the diameter D1 of the axial flow fan blade 200 to the width H1 of the housing 100 satisfies: D1 / H1=0.8.

[0048] This configuration ensures that the air conditioner 010 has a sufficiently large air volume, while also ensuring that the overall size of the air conditioner 010 is controllable. The air conditioner 010 is relatively small and does not occupy too much installation space, while also ensuring that the production cost of the air conditioner 010 is controllable.

[0049] Alternatively, please refer to Figure 2 The housing 100 includes a duct 130, and an axial flow fan blade 200 is located inside the duct 130. The width H2 of the inner cavity of the duct 130 satisfies: 500 < H2 ≤ 560 mm (e.g., 501 mm, 507 mm, 515 mm, 527 mm, 534 mm, 544 mm, 549 mm, 560 mm, etc.), and the ratio of the inner cavity width H2 of the duct 130 to the diameter D1 of the axial flow fan blade 200 satisfies: 1 < H2 / D1 ≤ 1.120 (e.g., 1.01, 1.05, 1.105, 1.110, 1.120, etc., which are not specifically limited here).

[0050] The design of the air duct 130 guides the airflow and improves the problem of turbulent airflow within the housing 100, thereby reducing airflow loss. Simultaneously, setting the inner width of the air duct 130 to be greater than the diameter of the axial fan blade 200 improves the problem of airflow being interfered with and unable to be smoothly blown out when passing through the inner wall of the air duct 130, thus ensuring a sufficiently large airflow.

[0051] Alternatively, please refer to Figure 2 and Figure 3 The area of ​​the air inlet 110 is greater than or equal to the area of ​​the air outlet 120. Setting a larger air inlet 110 ensures a sufficiently large air intake, thereby increasing the final air output by increasing the air intake.

[0052] Optionally, the ratio of the width W1 of the air inlet 110 to the width H2 of the inner cavity of the air duct 130 satisfies: 0.910 < W1 / H2 ≤ 1.060 (e.g., 0.911, 0.950, 1.000, 1.020, 1.060, etc., which are not specifically limited here), and the ratio of the width W2 of the air outlet 120 to the width H2 of the inner cavity of the air duct 130 satisfies: 0.910 < W2 / H2 ≤ 1.060 (e.g., 0.911, 0.950, 1.000, 1.020, 1.060, etc., which are not specifically limited here); the height L1 of the air inlet 110 is greater than the height L2 of the air outlet 120.

[0053] The width of the air inlet and outlet is optimized to maximize the use of the space along the direct airflow path, ensuring that air entering from the inlet exits from the outlet as unobstructed as possible, reducing wind noise and resistance, and increasing airflow. The height of the casing is fully utilized to create a larger air inlet, ensuring a larger intake air volume for the air conditioner, which in turn increases the outlet airflow.

[0054] Optionally, the width W1 of the air inlet 110 is equal to the width W2 of the air outlet 120, and the height L1 of the air inlet 110 is greater than the height L2 of the air outlet 120. Configuring the widths W1 of the air inlet 110 and W2 of the air outlet 120 to be equal fully utilizes the width space along the direct airflow path, ensuring that the air entering from the air inlet is blown out of the air outlet as unobstructed as possible, reducing wind noise and wind resistance, and increasing airflow.

[0055] It should be noted that by utilizing the height space of the housing 100 to set a sufficiently large air inlet 110, the area of ​​the air inlet 110 can be increased, which can effectively control the width of the housing 100 and improve the problem of the overall size of the air conditioner 010 being too large.

[0056] Optionally, the width W1 of the air inlet 110 is 510-530mm (e.g., 510mm, 515mm, 522mm, 527mm, 530mm, etc., which are not specifically limited here), and the height L1 of the air inlet 110 is 920-940mm (e.g., 920mm, 925mm, 930mm, 935mm, 940mm, etc., which are not specifically limited here).

[0057] Make full use of the height space of the housing 100 and set a sufficiently large air inlet 110 to ensure that the air conditioner 010 has a large air intake volume, and increase its air output volume by increasing the air intake volume.

[0058] Optionally, the width W2 of the air outlet 120 is 510-530mm (e.g., 510mm, 515mm, 522mm, 527mm, 530mm, etc., which are not specifically limited here), and the height L2 of the air outlet 120 is 500-530mm (e.g., 500mm, 505mm, 512mm, 520mm, 525mm, 530mm, etc., which are not specifically limited here). Optimizing the height and width dimensions of the air outlet 120 can improve the problem of airflow interference from the housing 100, thereby ensuring a sufficiently large airflow.

[0059] Optionally, the air conditioner 010 includes only one axial fan blade 200, one air inlet 110, and one air outlet 120.

[0060] By installing only one axial fan blade 200 inside the housing 100, the cost of the air conditioner 010 can be reduced by decreasing the number of fan blades, and assembly steps can be reduced to improve the production efficiency of the air conditioner 010. Correspondingly, an air inlet 110 and an air outlet 120 are provided to reduce the loss of air entering and leaving the housing 100, so as to ensure a sufficiently large air volume.

[0061] Alternatively, please refer to Figure 1The axial width H3 of the axial fan blade 200 is 90-110mm, such as 90mm, 93mm, 95mm, 98mm, 101mm, 104mm, 107mm, 110mm, etc., which are not specifically limited here. The ratio of the axial width H3 of the axial fan blade 200 to the width H4 of the housing 100 in the front-rear direction satisfies: 0.176 < H3 / H4 < 0.225 (e.g., 0.177, 0.180, 0.185, 0.190, 0.195, 0.200, 0.205, 0.210, 0.215, 0.220, 0.224, etc., which are not specifically limited here).

[0062] Optimizing the axial width of the axial fan blade 200 can, on the one hand, improve the problem of the axial size of the axial fan blade 200 being too large, occupying too much internal installation space of the housing 100, and causing an increase in the front and rear dimensions of the air conditioner 010. On the other hand, it can improve the problem of increased friction between the axial fan blade 200 and the air, reduce additional energy loss, and improve the problem of reduced efficiency.

[0063] Alternatively, please refer to Figure 1 The width H4 of the housing 100 in the front-to-back direction is 490-510mm, for example: 490mm, 495mm, 498mm, 502mm, 506mm, 510mm, etc., and is not specifically limited here.

[0064] For example, in a preferred embodiment, the air conditioner 010 housing 100 is provided with one air inlet 110 and one air outlet 120, and the number of axial flow fan blades 200 disposed within the housing 100 is one; wherein, the diameter D1 of the axial flow fan blade 200 is 518mm, and the ratio of the diameter D1 of the axial flow fan blade 200 to the width H1 of the housing 100 satisfies: D1 / H1=0.8; the axial width H3 of the axial flow fan blade 200 is 101mm; the width W2 of the air outlet 120 is 522mm, the height L2 of the air outlet 120 is 512mm, the width W1 of the air inlet 110 is 522mm, the height L1 of the air inlet 110 is 930mm; the front-to-back width H4 of the housing 100 is 498mm; and the width H2 of the inner cavity of the air duct 130 is 527mm.

[0065] Optionally, the axial fan blade 200 is disposed between the air inlet 110 and the air outlet 120, and the evaporator is disposed between the air inlet 110 and the axial fan blade 200. This arrangement ensures that the air entering the housing 100 from the air inlet 110 under the action of the axial fan blade 200 can reliably flow through the evaporator and then be blown out from the air outlet 120, thus ensuring the reliability of heat exchange using the evaporator within the housing 100.

[0066] Optionally, the air inlet 110, evaporator, axial fan blades 200, and air outlet 120 are arranged in a sequential and relative manner along the axial direction of the axial fan blades 200. This arrangement helps the evaporator to cover and shield the axial fan blades 200, thereby ensuring that the air entering the housing 100 from the air inlet 110 can fully flow through the evaporator for heat exchange, ensuring efficient heat exchange and reducing energy waste.

[0067] Alternatively, please refer to Figure 1 The distance H5 from the axial fan blade 200 to the air outlet 120 is less than the distance H6 from the axial fan blade 200 to the air inlet 110. Configuring a smaller distance between the axial fan blade 200 and the air outlet 120 ensures that the heat-exchanged air is efficiently blown out from the air outlet 120, shortens the path of air flow from the axial fan blade 200 to the air outlet 120, reduces airflow loss, and ensures a sufficiently large airflow.

[0068] Optionally, the axial fan blade 200 has a windward surface facing the air inlet 110 and an air outlet surface facing the air outlet 120; the distance from the axial fan blade 200 to the air outlet 120 can refer to the shortest straight-line distance from the air outlet surface to the air outlet 120; the distance from the axial fan blade 200 to the air inlet 110 can refer to the shortest straight-line distance from the windward surface to the air inlet 110.

[0069] Optionally, the shortest straight-line distance from the air inlet 110 to the windward surface of the axial fan blade 200 is 240-255mm, such as 240mm, 243mm, 245mm, 248mm, 251mm, 255mm, etc., without specific limitation; the shortest straight-line distance from the air outlet 120 to the air outlet surface of the axial fan blade 200 is 140-165mm, such as 140mm, 143mm, 145mm, 148mm, 150mm, 153mm, 158mm, 160mm, 162mm, 165mm, etc., without specific limitation.

[0070] For example, the axial width H3 of the axial fan blade 200 is 101mm, the front-to-back width H4 of the housing 100 is 498mm, the distance from the windward side of the axial fan blade 200 to the air inlet 110 is 252mm, and the distance from the air outlet side of the axial fan blade 200 to the air outlet 120 is 145mm.

[0071] The following experimental examples will further illustrate in detail the impact of the ratio of the diameter D1 of the axial fan blade 200 to the width H1 of the casing 100 on the airflow growth rate of the air conditioner 010. The ratio of the diameter D1 of the axial fan blade 200 to the width H1 of the casing 100 and the corresponding airflow growth rate for each experimental example are shown in Table 1.

[0072] Table 1

[0073] According to Table 1 and Figure 4 The results show that when the ratio of the diameter D1 of the axial fan blade 200 to the width H1 of the casing 100 is greater than 0.65, the air volume increases with the increase of the ratio of the diameter D1 of the axial fan blade 200 to the width H1 of the casing 100.

[0074] When the ratio of the diameter D1 of the axial fan blade 200 to the width H1 of the housing 100 reaches 0.8, the rate of increase in air volume gradually slows down.

[0075] If we consider the air volume, the overall space occupied by the air conditioner 010, and the cost, the optimal ratio of the diameter D1 of the axial fan blade 200 to the width H1 of the casing 100 is 0.8.

[0076] It should be understood that the above-mentioned optimal ratio of the diameter D1 of the axial fan blade 200 to the width H1 of the housing 100 is 0.8 does not mean that this disclosure denies the contribution of the implementation method with a ratio of the diameter D1 of the axial fan blade 200 to the width H1 of the housing 100 greater than 0.8 to the improvement of air volume. Under the condition that the width of the housing 100 of the air conditioner 010 and the diameter of the axial fan blade 200 are reasonably set, D1 / H1 can be greater than 0.8.

[0077] In summary, by optimizing the ratio of the diameter of the axial fan blade 200 to the width of the casing 100, the air conditioner 010 of this utility model can effectively increase the air volume, improve the heat exchange efficiency of the air conditioner 010, and enhance the user experience.

[0078] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. An air conditioner, characterized in that, include: The housing (100) is provided with an air inlet (110) and an air outlet (120). An axial flow fan blade (200) is disposed within the housing (100) to allow air to enter the housing (100) through the air inlet (110) and then be blown out through the air outlet (120). The axis of the axial flow fan blade (200) is coaxially arranged with the center line of the air outlet (120). The ratio of the diameter D1 of the axial flow fan blade (200) to the width H1 of the housing (100) satisfies: 0.65 < D1 / H1 ≤ 0.875; the width H1 of the housing (100) refers to the width of the housing (100) in the left-right direction.

2. The air conditioner according to claim 1, characterized in that, The ratio of the diameter D1 of the axial fan blade (200) to the width H1 of the housing (100) satisfies: 0.8≤D1 / H1; The diameter D1 of the axial flow fan blade (200) is 500-550mm.

3. The air conditioner according to claim 2, characterized in that, The diameter D1 of the axial flow fan blade (200) is 510-526mm, and the ratio of the diameter D1 of the axial flow fan blade (200) to the width H1 of the housing (100) satisfies: D1 / H1=0.

8.

4. The air conditioner according to any one of claims 1-3, characterized in that, The housing (100) includes a duct (130), and the axial flow fan (200) is located in the duct (130). The width H2 of the inner cavity of the duct (130) satisfies: 500 < H2 ≤ 560 mm, and the ratio of the width H2 of the inner cavity of the duct (130) to the diameter D1 of the axial flow fan (200) satisfies: 1 < H2 / D1 ≤ 1.

120.

5. The air conditioner according to any one of claims 1-3, characterized in that, The area of ​​the air inlet (110) is greater than or equal to the area of ​​the air outlet (120).

6. The air conditioner according to claim 5, characterized in that, The width W1 of the air inlet (110) is 510-530mm, and the height L1 of the air inlet (110) is 920-940mm; The width W2 of the air outlet (120) is 510-530mm, and the height L2 of the air outlet (120) is 500-530mm.

7. The air conditioner according to claim 5, characterized in that, The width W1 of the air inlet (110) is equal to the width W2 of the air outlet (120); or, the housing (100) includes an air duct (130), the axial fan (200) is located in the air duct (130), the ratio of the width W1 of the air inlet (110) to the width H2 of the inner cavity of the air duct (130) satisfies: 0.910 < W1 / H2 ≤ 1.060, and the ratio of the width W2 of the air outlet (120) to the width H2 of the inner cavity of the air duct (130) satisfies: 0.910 < W2 / H2 ≤ 1.060; The height L1 of the air inlet (110) is greater than the height L2 of the air outlet (120).

8. The air conditioner according to any one of claims 1-3, characterized in that, The air conditioner includes only one axial fan blade (200), one air inlet (110), and one air outlet (120).

9. The air conditioner according to any one of claims 1-3, characterized in that, The axial width H3 of the axial fan blade (200) is 90-110mm; the ratio of the axial width H3 of the axial fan blade (200) to the width H4 of the housing (100) in the front-rear direction satisfies: 0.176 < H3 / H4 < 0.

225.

10. The air conditioner according to any one of claims 1-3, characterized in that, The axial flow fan blade (200) is disposed between the air inlet (110) and the air outlet (120), and the distance H5 from the axial flow fan blade (200) to the air outlet (120) is less than the distance H6 from the axial flow fan blade (200) to the air inlet (110).

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