An air conditioner

Abstract

The utility model provides a kind of air conditioner, it is related to air conditioning technical field.The air conditioner includes front apron, rear apron and base;Front apron is connected with rear apron, and the bottom of front apron and rear apron is connected with base, to jointly constitute the shell structure of air conditioner, and rear apron is provided with air inlet;Rear apron is in convex arc shape, and the rim of base is protruded relative to rear apron, to increase the air gap formed between rear apron and wall, to improve air gap and air intake capacity;Not only this, the protruding structure of base rim also increases the contact area with ground, to improve the anti-overturning ability, and then enhance the air conditioner placing stability.

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] Axial flow fans, due to their parallel airflow direction with the motor shaft and smooth airflow path, offer advantages such as large air volume, high efficiency, and low noise, and are widely used in air conditioning equipment such as indoor units of cabinet-type air conditioners. They typically employ a convection ventilation method with rear air intake and front air exhaust, which is beneficial for achieving efficient heat exchange.

[0003] However, in actual installation and use, when the indoor unit of the cabinet is placed close to a wall, the rear air inlet is easily blocked by the wall, resulting in obstructed air intake, significantly reduced air intake area, and a sharp decrease in airflow, severely affecting heat exchange efficiency and cooling / heating performance. Furthermore, existing axial-flow cabinet indoor units generally place the axial fan in the top area of ​​the unit, causing the center of gravity to shift upwards, while the bottom structure is relatively open, with a small support area and a lack of sufficient counterweight or stabilizing structure. With this layout, the equipment has poor resistance to tipping when subjected to operational vibrations or external impacts, posing a risk of tipping over and a safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide an air conditioner that can solve the above-mentioned technical problems.

[0005] The embodiments of this utility model are implemented as follows: In a first aspect, this utility model provides an air conditioner, including a front panel, a rear panel, and a base; The front panel is connected to the rear panel, and the bottom of both the front panel and the rear panel are connected to the base to form the outer shell structure of the air conditioner. The rear panel is provided with an air inlet. The rear panel has a convex arc shape, and the edge of the base protrudes relative to the rear panel.

[0006] In the above embodiment, by setting the rear panel to a convex arc shape, that is, its outer surface protrudes outward in the direction away from the interior of the air conditioner, forming an arc-shaped contour with a certain curvature, even when the air conditioner is installed against the wall, its two side edges can still maintain a certain gap with the wall surface, forming a larger air intake gap, thereby reducing air intake resistance and increasing air intake volume. In addition, by making the edge of the base protrude relative to the rear panel, so that the edge of the base extends beyond the outer surface boundary of the rear panel, when the air conditioner is installed against the wall, the protruding edge of the base will preferentially contact the wall surface, thereby further increasing the air intake gap formed between the rear panel and the wall, thereby further improving the air intake gap and air intake volume. Moreover, the protruding structure of the base edge also increases the contact area with the ground, thereby improving the anti-tipping ability and enhancing the placement stability of the air conditioner.

[0007] In an optional embodiment, the base includes a support portion and a protrusion portion. The bottom of both the front panel and the rear panel are connected to the support portion. The protrusion portion protrudes from the side wall of the support portion and is located on the side of the rear panel away from the front panel.

[0008] In the above embodiment, the supporting part and the protrusion are integrally formed. Even if the air conditioner is pushed to a position close to the wall, the protrusion abuts against the wall, so that there is a gap between the rear panel and the wall, thereby providing a sufficient flow channel for external air to enter the air inlet.

[0009] In an optional embodiment, the height of the protrusion gradually decreases in the direction away from the support portion, so that the protrusion has an inclined structure.

[0010] In the above embodiment, the upper surface of the protrusion is a sloping surface that slopes downwards from the inside to the outside. When the air conditioner is placed against a wall, this sloping structure extends towards the wall, facilitating the natural sliding of condensate water falling to the bottom of the device along the sloping surface and preventing stagnation in the contact area. Furthermore, the sloping structure reduces the vertical gap between the end of the protrusion and the wall, decreasing the space for dust and debris accumulation, thereby indirectly improving the ease of cleaning the bottom of the device. Simultaneously, from an aesthetic perspective, the sloping profile is more streamlined than a sharp right angle, contributing to the overall harmony and aesthetics of the product.

[0011] In an optional embodiment, if the tilt angle of the protrusion is α, then α < 150°.

[0012] In the above embodiment, this angle range ensures that the protrusion can quickly guide the liquid adhering to its surface to the edge and drip off as it extends backward, preventing water from seeping back along the slope to the area where the support part and the rear panel are connected.

[0013] In an optional embodiment, the rear panel includes an upper panel and a lower panel connected to each other. The upper panel has a convex arc shape, the air inlet is disposed on the upper panel, and the bottom of the lower panel is connected to the support portion.

[0014] In the above embodiment, the rear panel includes an upper panel and a lower panel connected to each other. The upper panel has a convex arc shape, that is, its outer surface bulges outward from the interior of the air conditioner, forming an outwardly convex curved structure. In other words, the upper panel has an arc-shaped profile in its cross-section. The air inlet is provided on the upper panel, and the bottom of the lower panel is connected to the support part to form a stable outer shell structure.

[0015] In an optional implementation, the air inlet area is S1 and the area of ​​the upper enclosure is S2, which satisfies S1 = (0.3~0.7)S2.

[0016] In the above embodiments, when S1 is within this range, it can effectively match the flow rate requirements of the axial flow fan, maintaining a stable airflow input even under wall-mounted or near-wall conditions. If S1 is less than 0.3S2, the air inlet channel becomes too narrow, which not only reduces the airflow but may also lead to excessively high local wind speeds and enhanced turbulence, resulting in increased pressure loss and increased operating noise. Conversely, if S1 is greater than 0.7S2, the upper enclosure has less structural material, leading to reduced structural rigidity. Under external impact or long-term vibration, it is prone to deformation or even cracking, affecting the overall durability of the machine. Therefore, by controlling S1 within the range of 0.3 to 0.7 times S2, a good balance can be achieved between aerodynamic and mechanical performance.

[0017] In an optional implementation, S1 = 0.35S2.

[0018] In the above implementation, S1=0.35S2. Under this condition, the upper enclosure ensures that the upper enclosure has sufficient structural strength and that its air intake area is reasonable, thus avoiding obvious structural instability or air volume reduction.

[0019] In an optional embodiment, the rear panel further includes a grille disposed at the air inlet, the grille being in a convex arc shape.

[0020] In the above embodiment, the grille is set at the air inlet to cover the air inlet area, ensuring air flow while blocking larger external particles or human contact with internal components. The grille has a convex arc shape, that is, its overall outline is consistent with the outer surface shape of the upper panel, and it bulges outward to form a curved structure. In this way, the grille and the upper panel maintain continuity in shape and together form a complete convex arc rear panel structure.

[0021] In an optional embodiment, the plane where the two sides of the grille connect to the upper enclosure is set as a reference plane, the plane parallel to the reference plane and tangent to the outer wall of the grille is a first tangent plane, and the plane parallel to the reference plane and tangent to the edge of the protrusion is a second tangent plane. The distance between the first tangent plane and the second tangent plane is L1, and the distance between the second tangent plane and the reference plane is L2. Then, 0.2*L3<(L1+L2) and 30mm<L1<L2 are satisfied.

[0022] In the above embodiments, the dimensions of the base and the rear panel can be reasonably designed, the air volume attenuation can be controlled within 10% when the air conditioner is against the wall, and the protruding curvature of the grille and the upper panel can be significantly reduced, making the structure more reasonable and aesthetically pleasing.

[0023] In an optional embodiment, the front bulkhead is provided with an air outlet, and the air outlet and the air inlet are arranged opposite to each other.

[0024] In the above embodiments, by setting the air outlet and air inlet opposite each other, the airflow path is kept consistent and without obvious bends, which significantly reduces the local resistance and air volume loss of the air duct system and effectively improves the air delivery performance and energy efficiency of the air conditioner.

[0025] The beneficial effects of the air conditioner provided by this utility model embodiment include: by setting the rear panel to a convex arc shape, that is, its outer surface protrudes outward in the direction away from the interior of the air conditioner, forming an arc-shaped contour with a certain curvature, so that even when the air conditioner is installed against the wall, its two side edges can still maintain a certain gap with the wall surface, forming a larger air intake gap, thereby reducing air intake resistance and increasing air intake volume; in addition, by making the edge of the base protrude relative to the rear panel, so that the edge of the base extends beyond the outer surface boundary of the rear panel, when the air conditioner is installed against the wall, the protruding edge of the base will preferentially contact the wall surface, thereby further increasing the air intake gap formed between the rear panel and the wall, thereby further improving the air intake gap and air intake volume; not only that, the protruding structure of the base edge also increases the contact area with the ground, thereby improving the anti-tipping ability, and thus enhancing the placement stability of the air conditioner. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the air conditioner structure provided for an embodiment of this utility model; Figure 2 An exploded view of an air conditioner provided for an embodiment of this utility model; Figure 3 This is a schematic diagram of the air conditioner's structure against the wall from a first-view perspective, provided as an embodiment of the present utility model. Figure 4 This is a schematic diagram of the second-view structure of the air conditioner against the wall provided in an embodiment of the present utility model; Figure 5 A schematic diagram of the base structure provided for an embodiment of this utility model; Figure 6 A schematic diagram of the dimensions of an air conditioner provided for an embodiment of this utility model; Figure 7 A comparison chart of test data provided for embodiments of this utility model.

[0028] Icons: 10-Air conditioner; 100-Front panel; 110-Air outlet; 200-Rear panel; 210-Upper panel; 211-Air inlet; 220-Lower panel; 230-Grate; 300-Base; 310-Supporting part; 320-Protrusion. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Axial flow fans, due to their parallel airflow direction with the motor shaft and smooth airflow path, offer advantages such as large air volume, high efficiency, and low noise, and are widely used in air conditioning equipment such as indoor units of cabinet-type air conditioners. They typically employ a convection ventilation method with rear air intake and front air exhaust, which is beneficial for achieving efficient heat exchange. However, in actual installation and use, when the cabinet-type indoor unit is placed close to a wall, the rear air intake is easily blocked by the wall, resulting in obstructed air intake channels, a significant reduction in air intake area, and a sharp decrease in air volume, severely affecting heat exchange efficiency and cooling / heating performance. This problem is particularly prominent in scenarios with limited space or restricted installation location, limiting the product's installation flexibility and effectiveness.

[0036] Furthermore, existing axial-flow cabinet-type indoor units typically place the axial fan in the top area of ​​the unit, causing the center of gravity to rise, while the bottom structure is relatively open, with a small support area and a lack of sufficient counterweight or stabilizing structure. With this layout, the equipment has poor resistance to tipping over when subjected to operational vibrations or external impacts, posing a risk of tipping, especially in areas with children or high pedestrian traffic, thus creating a significant safety hazard. At the same time, the ineffective use of bottom space also affects the rational layout of internal components.

[0037] Therefore, there is an urgent need to provide a structurally optimized cabinet-style indoor unit design to improve air intake conditions and enhance overall unit stability, in order to overcome the problems of severe airflow attenuation and easy tipping when the existing axial flow solution is installed against the wall, thereby improving product applicability and safety.

[0038] Please see Figures 1 to 7 This utility model provides an air conditioner 10, including a front panel 100, a rear panel 200, and a base 300. The front panel 100 and the rear panel 200 are connected, and the bottoms of both the front panel 100 and the rear panel 200 are connected to the base 300 to jointly form the outer shell structure of the air conditioner 10. The rear panel 200 is provided with an air inlet 211, and the front panel 100 is provided with an air outlet 110. The air outlet 110 and the air inlet 211 are arranged opposite to each other to keep the airflow path consistent and without obvious bends, which significantly reduces the local resistance and air volume loss of the duct system and effectively improves the air delivery performance and energy efficiency of the air conditioner 10.

[0039] In this embodiment, the rear panel 200 has a convex arc shape, meaning its outer surface bulges outwards in a direction away from the interior of the air conditioner 10, forming an arc-shaped profile with a certain curvature. Furthermore, the edge of the base 300 protrudes relative to the rear panel 200, so that the edge of the base 300 extends beyond the outer surface boundary of the rear panel 200. This ensures that when the air conditioner 10 is installed against a wall, the protruding edge of the base 300 preferentially contacts the wall, thereby reserving a continuously communicating air intake gap between the rear panel 200 and the wall. This air intake gap is distributed along the curved surface of the convex arc rear panel 200, forming a non-linear airflow channel that allows outside air to flow evenly into the air inlet 211 from the annular area between the wall and the rear panel 200.

[0040] Therefore, compared to a traditional flat rear panel 200, the convex arc-shaped rear panel 200 provides a larger effective projected air intake area at the same installation spacing. Due to the laterally expanding geometric characteristics of the arc surface, even when mounted against a wall, its two edges still maintain a certain gap with the wall, forming an "arc-shaped gap" air intake path, significantly reducing air intake resistance. Furthermore, the protruding structure along the edge of the base 300 not only further increases the distance between the rear panel 200 and the wall, thereby improving the air intake gap between the rear panel 200 and the wall, but also increases the contact area with the ground, thus enhancing anti-tipping ability and improving the placement stability of the air conditioner 10.

[0041] Therefore, when the air conditioner 10 provided in this embodiment is placed in a confined space such as near a wall, it can maintain a stable air intake without additional adjustment of the installation distance. This effectively alleviates the problem of air volume attenuation of the axial fan in a confined space and increases the contact area with the ground. It solves the problem of air intake obstruction when installed against a wall and also takes into account the safety requirements of the whole unit.

[0042] Furthermore, the base 300 includes a support portion 310 and a protrusion 320. The bottoms of the front panel 100 and the rear panel 200 are both connected to the support portion 310. The protrusion 320 protrudes from the side wall of the support portion 310 and is located on the side of the rear panel 200 away from the front panel 100.

[0043] It is worth mentioning that the supporting part 310 and the protruding part 320 are integrally formed. Even if the air conditioner 10 is pushed to a position close to the wall, the protruding part 320 abuts against the wall, so that there is a gap between the rear panel 200 and the wall, thereby providing a sufficient flow channel for external air to enter the air inlet 211.

[0044] It should be noted that the height of the protrusion 320 gradually decreases in the direction away from the bearing portion 310, so that the protrusion 320 has an inclined structure.

[0045] In other words, the upper surface of the protrusion 320 is a sloping surface that slopes downward from the inside out. When the air conditioner 10 is placed against the wall, this sloping structure extends towards the wall, which facilitates the guidance of condensate water falling at the bottom of the device to slide naturally down the sloping surface, avoiding stagnation in the contact area.

[0046] Furthermore, the inclined structure reduces the vertical gap between the end of the protrusion 320 and the wall, decreasing the space for dust and debris accumulation and indirectly improving the ease of cleaning the bottom of the device. At the same time, from an aesthetic perspective, the inclined profile is more streamlined than a sharp right angle, contributing to the overall harmony and aesthetics of the product.

[0047] Specifically, if the tilt angle of the protrusion 320 is α, then α < 150°.

[0048] The tilt angle α mentioned here is defined as the angle between the top plane of the protrusion 320 and the inclined structure on the cross-section. When α is less than 150°, it means that the protrusion 320 does not extend nearly horizontally, but has a significant downward tilting tendency, thus forming an effective guiding slope. If the angle is too large, the protrusion 320 tends to extend straight, which will reduce the drainage capacity.

[0049] Therefore, this angle range ensures that the protrusion 320 can quickly guide the liquid adhering to its surface to the edge and drip off as it extends backward, preventing water from seeping back along the slope to the connection area between the support part 310 and the rear panel 200.

[0050] Alternatively, α can be 125°, which has shown good drainage performance in experimental verification, with no water accumulation.

[0051] Furthermore, the rear panel 200 includes an upper panel 210 and a lower panel 220 connected to each other. The upper panel 210 has a convex arc shape, that is, its outer surface bulges in the direction away from the interior of the air conditioner 10, forming an outwardly convex curved surface structure. In other words, the upper panel 210 has an arc-shaped profile in its cross-section. The air inlet 211 is provided on the upper panel 210, and the bottom of the lower panel 220 is connected to the support part 310.

[0052] It should be noted that the air inlet area of ​​the air inlet 211 is S1, and the area of ​​the upper panel 210 is S2, which satisfies S1 = (0.3~0.7)S2.

[0053] Specifically, when S1 is within this range, it can effectively match the flow requirements of the axial flow fan, maintaining a stable airflow input even under wall-mounted or near-wall conditions. If S1 is less than 0.3S2, the air inlet channel becomes too narrow, which not only reduces the airflow but may also lead to excessively high local wind speeds and enhanced turbulence, resulting in increased pressure loss and increased operating noise. Conversely, if S1 is greater than 0.7S2, the upper enclosure 210 has less structural material, leading to reduced structural rigidity. Under external impact or long-term vibration, it is prone to deformation or even cracking, affecting the overall durability of the machine. Therefore, by controlling S1 within the range of 0.3 to 0.7 times S2, a good balance can be achieved between aerodynamic and mechanical performance.

[0054] Optionally, S1 = 0.35S2. For example, when the area of ​​the upper panel 210 is 1.3㎡, i.e., 1.3S2 = 1.3㎡, the air inlet area of ​​the air inlet 211 is 0.46㎡, i.e., S1 = 0.46m³. Under this condition, the upper panel 210 can ensure that it has sufficient structural strength and that its air inlet area is reasonable, thus avoiding significant structural instability or airflow reduction.

[0055] Furthermore, the rear panel 200 also includes a grille 230, which is located at the air inlet 211 and is used to cover the area of ​​the air inlet 211. While ensuring airflow, it blocks larger external particles or human contact with internal components. The grille 230 has a convex arc shape, that is, its overall outline is consistent with the outer surface shape of the upper panel 210, and it bulges outward to form a curved structure. In this way, the grille 230 and the upper panel 210 maintain continuity in shape and together form a complete convex arc rear panel structure.

[0056] It is worth mentioning that the planes where the two sides of the grille 230 connect with the upper panel 210 are set as reference planes (e.g., Figure 6 As shown by dashed line A), the plane parallel to the reference plane and tangent to the outer wall of the grille 230 is the first tangent plane (as shown by dashed line A). Figure 6 (As shown by dashed line B), the plane used to determine the maximum protrusion position of the grille 230, which is parallel to the reference plane and tangent to the edge of the protrusion 320, is the second tangent plane (as shown by dashed line B). Figure 6 (As shown by dashed line C), used to determine the farthest extension point of the protrusion 320 of the base 300.

[0057] Wherein, the distance between the first tangent plane and the second tangent plane is L1, the distance between the second tangent plane and the reference plane is L2, and the length of the bearing part 310 is L3, then 0.2*L3<(L1+L2) and 30mm<L1<L2 are satisfied.

[0058] It should be noted that, in the absence of a protrusion 320 on the base 300, in order to ensure that the airflow reduction near the wall is less than 10%, it is necessary to satisfy 0.2*L3<L2, that is, when the length L3 of the base 300 is 650mm, L2 is not less than 130mm.

[0059] Therefore, in this embodiment, by setting a protrusion 320 on the base 300 and ensuring that 0.2*L3 < (L1+L2) and 30mm < L1 < L2, it is possible to achieve that when the length L3 of the bearing part 310 is 650mm, L1+L2 must not be less than 130mm. This means that the air volume attenuation can be controlled within 10% when the air conditioner 10 is against the wall, thereby significantly reducing the protruding curvature of the grille 230 and the upper panel 210, making its structure more reasonable and aesthetically pleasing.

[0060] For example, such as Figure 7 As shown, under experimental conditions, in the design scheme using a flat rear panel 200 without a chassis protrusion 320, the air volume attenuation when the unit is against the wall can reach the level of complete blockage; in the design scheme using an arc-shaped rear panel 200 without a chassis protrusion 320, the air volume attenuation rate is still as high as 20% when the unit is against the wall; while the arc-shaped rear panel 200 combined with the base 300 protrusion 320 structure used in this embodiment achieves that even when the air conditioner 10 is against the wall, the air volume attenuation can be controlled within 9%, which is significantly better than the traditional structure and significantly improves the air intake volume.

[0061] In summary, this utility model provides an air conditioner 10. By setting the rear panel 200 to a convex arc shape, that is, its outer surface protrudes outward in the direction away from the interior of the air conditioner 10, forming an arc-shaped contour with a certain curvature, even when the air conditioner 10 is installed against the wall, its two side edges can still maintain a certain gap with the wall surface, forming a larger air intake gap, thereby reducing air intake resistance and increasing air intake volume. In addition, by making the edge of the base 300 protrude relative to the rear panel 200, so that the edge of the base 300 extends beyond the outer surface boundary of the rear panel 200, when the air conditioner 10 is installed against the wall, the protruding edge of the base 300 will preferentially contact the wall surface, thereby further increasing the air intake gap formed between the rear panel 200 and the wall, thereby further improving the air intake gap and air intake volume. Moreover, the protruding structure of the edge of the base 300 also increases the contact area with the ground, thereby improving the anti-tipping ability and enhancing the placement stability of the air conditioner 10. As can be seen, when the air conditioner 10 provided in this embodiment is placed in a confined space such as near a wall, it can maintain a stable air intake without additional adjustment of the installation distance. This effectively alleviates the problem of air volume attenuation of the axial fan in a confined space and increases the contact area with the ground. It solves the problem of air intake obstruction when installed against a wall and also takes into account the safety requirements of the whole unit.

[0062] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An air conditioner, characterized in that, Includes a front panel (100), a rear panel (200), and a base (300); The front panel (100) is connected to the rear panel (200), and the bottom of both the front panel (100) and the rear panel (200) are connected to the base (300) to form the outer shell structure of the air conditioner. The rear panel (200) is provided with an air inlet (211). The rear panel (200) is convex arc-shaped, and the edge of the base (300) protrudes relative to the rear panel (200).

2. The air conditioner according to claim 1, characterized in that, The base (300) includes a support portion (310) and a protrusion (320). The bottoms of the front panel (100) and the rear panel (200) are both connected to the support portion (310). The protrusion (320) protrudes from the side wall of the support portion (310) and is located on the side of the rear panel (200) away from the front panel (100).

3. The air conditioner according to claim 2, characterized in that, The height of the protrusion (320) gradually decreases in the direction away from the bearing portion (310) so that the protrusion (320) has an inclined structure.

4. The air conditioner according to claim 3, characterized in that, If the tilt angle of the protrusion (320) is α, then α < 150°.

5. The air conditioner according to claim 2, characterized in that, The rear panel (200) includes an upper panel (210) and a lower panel (220) connected to each other. The upper panel (210) is in the shape of a convex arc. The air inlet (211) is disposed on the upper panel (210). The bottom of the lower panel (220) is connected to the support part (310).

6. The air conditioner according to claim 5, characterized in that, The air inlet area of ​​the air inlet (211) is S1, and the area of ​​the upper panel (210) is S2, then S1 = (0.3~0.7)S2.

7. The air conditioner according to claim 6, characterized in that, S1 = 0.35S2.

8. The air conditioner according to claim 5, characterized in that, The rear panel (200) also includes a grille (230), which is disposed at the air inlet (211) and has a convex arc shape.

9. The air conditioner according to claim 8, characterized in that, The plane where the two sides of the grille (230) are connected to the upper enclosure (210) is set as the reference plane. The plane parallel to the reference plane and tangent to the outer wall of the grille (230) is the first tangent plane. The plane parallel to the reference plane and tangent to the edge of the protrusion (320) is the second tangent plane. The distance between the first tangent plane and the second tangent plane is L1, and the distance between the second tangent plane and the reference plane is L2. Then, 0.2*L3<(L1+L2) and 30mm<L1<L2 are satisfied.

10. The air conditioner according to claim 1, characterized in that, The front panel (100) is provided with an air outlet (110), and the air outlet (110) and the air inlet (211) are arranged opposite to each other.

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