An air conditioner

Abstract

The application provides an air conditioner, and relates to the technical field of air conditioners.The air conditioner comprises an air conditioner shell, an air duct assembly and an evaporator, the air duct assembly and the evaporator are arranged in the air conditioner shell, the front and rear sides of the air conditioner shell are respectively provided with an air outlet and an air inlet, the air duct assembly is arranged close to the air outlet, the evaporator comprises a first evaporation section and a second evaporation section which are integrally arranged, the first evaporation section is arranged on the rear side of the air duct assembly and close to the air inlet, the second evaporation section is arranged in a bent mode relative to the first evaporation section, the second evaporation section is arranged in a spaced mode with the air duct assembly and extends along the front and rear directions, the air duct assembly does not interfere with the second evaporation section during the dismounting process, so that the air duct assembly can be quickly dismounted along the front and rear directions, and the process is convenient and fast.Compared with the prior art, the air conditioner provided by the application can conveniently dismount the air duct assembly, so that the easy dismounting function of the whole machine is realized.

Description

Technical Field

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

[0002] Currently, the evaporator of vertical air conditioners usually adopts a bent structure and is located between the air inlet and the duct assembly. When disassembling and repairing the duct assembly, it is usually necessary to remove the duct assembly from the air conditioner casing in the front-to-back direction. However, the conventional U-shaped evaporator has a large turning angle and overlaps with the duct assembly in the front-to-back direction, which causes interference. This makes it impossible to directly remove or install the duct assembly vertically in the front-to-back direction, which is not only unfavorable for duct assembly, but also unfavorable for after-sales service to directly disassemble the duct assembly. Summary of the Invention

[0003] The problem solved by this invention is how to easily disassemble the air duct components, thereby achieving the easy disassembly function of the whole machine.

[0004] To solve the above problems, the present invention adopts the following technical solution.

[0005] In one aspect, the present invention provides an air conditioner, including an air conditioner housing, an air duct assembly, and an evaporator. The air duct assembly and the evaporator are both disposed within the air conditioner housing. An air outlet and an air inlet are respectively provided on the front and rear sides of the air conditioner housing. The air duct assembly is disposed near the air outlet. The evaporator includes an integrally formed first evaporation section and a second evaporation section. The first evaporation section is disposed on the rear side of the air duct assembly and near the air inlet. The second evaporation section is bent relative to the first evaporation section and is spaced apart from the air duct assembly, extending in a front-rear direction to prevent interference between the air duct assembly and the second evaporation section during the process of removing the air conditioner housing in the front-rear direction.

[0006] The air conditioner provided by this invention has a first evaporator section positioned behind the air duct assembly. A second evaporator section is bent relative to the first evaporator section and spaced apart from the air duct assembly, extending along the front-rear direction to prevent interference between the air duct assembly and the second evaporator section during removal of the air conditioner housing. In actual disassembly and assembly, the air duct assembly can be removed from the air conditioner housing along the front-rear direction, while the second evaporator section also extends along the front-rear direction, maintaining a distance from the air duct assembly. This ensures that the air duct assembly will not interfere with the second evaporator section during removal. Simultaneously, the first evaporator section, located behind the air duct assembly, will not hinder its removal, allowing for quick and easy removal of the air duct assembly along the front-rear direction. Compared to existing technologies, the air conditioner provided by this invention allows for convenient disassembly of the air duct assembly, thus achieving easy disassembly and assembly of the entire unit.

[0007] Furthermore, the first evaporation section has an arc-shaped cross-section, the second evaporation section has a straight cross-section, and the extension direction of the second evaporation section is parallel to the removal direction of the air duct assembly.

[0008] The air conditioner provided by the present invention has a second evaporation section that is straight and the extension direction of the second evaporation section is parallel to the removal direction of the air duct assembly. This ensures that the distance between the air duct assembly and the second evaporation section in the left and right directions does not change during the removal of the air duct assembly, ensuring that the two are always in a spaced-out state. This further ensures that the second evaporation section will not interfere with the air duct assembly during the removal process.

[0009] Furthermore, the evaporator also includes a third evaporation section, one end of the second evaporation section is connected to the first evaporation section, the other end of the second evaporation section is connected to the third evaporation section, the third evaporation section is disposed on the rear side of the air duct assembly, and the cross-section of the third evaporation section is also straight.

[0010] The air conditioner provided by this invention also has a straight third evaporation section, which is located on the rear side of the air duct assembly. This facilitates the installation of the evaporator on the evaporator bracket inside the air conditioner housing and avoids interference with the air duct assembly during disassembly, thus ensuring the smooth removal of the air duct assembly.

[0011] Furthermore, the angle between the extension direction of the third evaporation section and the extension direction of the second evaporation section is between 45° and 70°.

[0012] The air conditioner provided by the present invention can control the size of the air cavity by limiting the angle between the third evaporation section and the second evaporation section, thereby improving the air delivery effect in the air duct.

[0013] Furthermore, the air duct assembly includes a base and a cross-flow fan blade. The first evaporation section and the second evaporation section are respectively disposed near both ends of the base and together with the base form an air cavity. The cross-flow fan blade is disposed in the air cavity and rotatably disposed on the base. The first evaporation section is disposed on the rear side of the cross-flow fan blade, and the second evaporation section is disposed at a distance from the cross-flow fan blade. The tangent on the outer circumference of the cross-flow fan blade along the front-rear direction is parallel to the second evaporation section to prevent interference between the cross-flow fan blade and the second evaporation section during the process of removing the air conditioner housing along the front-rear direction.

[0014] The air conditioner provided by the present invention has a cross-flow fan blade with a tangent in the front-to-back direction that is parallel to the second evaporator section, so that the cross-flow fan blade will not come into contact with or interfere with the second evaporator section during the removal of the air duct assembly, and further avoids the second evaporator section affecting the removal and installation of the cross-flow fan blade.

[0015] Furthermore, the third evaporation section has a first mounting point K at its end away from the first evaporation section, and the second evaporation section has a second mounting point P at its end away from the first evaporation section. The line KP connecting the first mounting point K and the second mounting point P is located between the center O of the cross-flow fan blade and the first evaporation section.

[0016] The air conditioner provided by this invention has the line connecting the ends of the second evaporation section and the third evaporation section located between the center of the cross-flow fan blade and the first evaporation section, thereby making the first evaporation section relatively farther away from the cross-flow fan blade, increasing the gap between the first evaporation section and the cross-flow fan blade, thereby increasing the volume of the air cavity, making the heat exchange efficiency of the evaporator higher, and increasing the effective utilization rate of the evaporator.

[0017] Furthermore, the air conditioner housing has a first endpoint A and a second endpoint B respectively at both ends along the direction perpendicular to the second evaporation section, and a third endpoint C is provided on the second evaporation section. The first endpoint A, the second endpoint B and the third endpoint C are located on the same straight line, and the distance L1 between the first endpoint A and the third endpoint C is 0.2 times to 0.4 times the distance between the second endpoint B and the third endpoint C.

[0018] The air conditioner provided by the present invention defines the actual positional relationship of the second evaporation section in the air conditioner casing by limiting the ratio of the distances between L1 and L2, thereby increasing the distance between the second evaporation section and the cross-flow fan blades, further expanding the volume of the air cavity, making the heat exchange efficiency of the evaporator higher, and increasing the effective utilization rate of the evaporator.

[0019] Furthermore, the first endpoint A and the second endpoint B are both located on the outer surface of the air conditioner housing, and the third endpoint C is located on the side surface of the second evaporation section near the first endpoint A.

[0020] Furthermore, the air conditioner housing has a circular cross-section, and the line connecting the first endpoint A and the second endpoint B coincides with the center O of the air conditioner housing.

[0021] Furthermore, the air conditioner housing includes a front panel and a rear panel, the front panel is mounted on the rear panel along the front-rear direction, and the evaporator and the air duct assembly are detachably connected to the rear panel.

[0022] Furthermore, an electric auxiliary heating module is also provided between the first evaporation section and the air duct assembly. Attached Figure Description

[0023] Figure 1 A schematic diagram of the air conditioner provided by the present invention at a first cross-section;

[0024] Figure 2 This is a schematic diagram of the air conditioner provided by the present invention at the second cross-section.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100 - Air conditioner; 110 - Air conditioner housing; 111 - Air outlet; 113 - Air inlet; 115 - Front panel; 117 - Rear panel; 130 - Air duct assembly; 131 - Base; 133 - Cross-flow fan blade; 150 - Evaporator; 151 - First evaporation section; 153 - Second evaporation section; 155 - Third evaporation section; 170 - Electric auxiliary heating module. Detailed Implementation

[0027] As disclosed in the background section, existing evaporators typically employ a bent structure for installation within the air conditioner casing. However, due to the large bending angle of conventional U-shaped evaporators, the angle formed by the evaporator is relatively small. This requires the cross-flow fan blades in the duct assembly to be installed within the opening formed by the evaporator, resulting in an excessively large enveloping angle between the evaporator and the cross-flow fan blades. Consequently, the evaporator and cross-flow fan blades overlap in the front-to-back direction. During the assembly and disassembly of the duct assembly, the cross-flow fan blades move along the front-to-back direction, causing interference from the evaporator and hindering their removal. This makes assembly and disassembly difficult and can easily damage the evaporator or the cross-flow fan blades.

[0028] To address the aforementioned problems, this invention provides an air conditioner that avoids interference between the evaporator and the cross-flow fan blades during disassembly and assembly, ensuring smooth removal of the air duct assembly and enabling quick vertical disassembly and assembly of the air duct assembly, thereby achieving easy disassembly and assembly of the entire unit. To make the above-mentioned objectives, features, and advantages of this invention more apparent and understandable, specific embodiments of the invention will be described in detail below with reference to the accompanying drawings.

[0029] First Embodiment

[0030] See also Figure 1 and Figure 2 This embodiment provides an air conditioner 100. By improving the bending angle and arrangement of the evaporator 150, the air duct assembly 130 can be quickly and easily disassembled and assembled in the front-to-back direction, thereby realizing the function of easy disassembly and assembly of the whole unit. At the same time, the volume of the air cavity can be further increased, thereby improving the heat exchange efficiency of the evaporator 150.

[0031] The air conditioner 100 provided in this embodiment includes an air conditioner housing 110, an air duct assembly 130 and an evaporator 150. The air duct assembly 130 and the evaporator 150 are both disposed inside the air conditioner housing 110. An air outlet 111 and an air inlet 113 are respectively provided on the front and rear sides of the air conditioner housing 110. The air duct assembly 130 is disposed near the air outlet 111. The evaporator 150 is disposed between the air inlet 113 and the air duct assembly 130, and an air cavity is formed between the evaporator 150 and the air duct assembly 130. The air cavity is connected to the air outlet 111. At the same time, the air duct assembly 130 is used to provide airflow driving force. External air enters the air conditioner housing 110 through the rear air inlet 113, enters the air cavity after heat exchange through the evaporator 150, and is then sent to the air outlet 111 by the air duct assembly 130 and sent out through the air outlet 111, completing the air supply and heat exchange process. The heat exchange principle of the evaporator 150 and the air supply principle of the air duct assembly 130 can be referred to the existing air conditioner 100, and will not be described in detail here.

[0032] The evaporator 150 includes an integrally formed first evaporation section 151, a second evaporation section 153, and a third evaporation section 155. The first evaporation section 151 is located on the rear side of the air duct assembly 130 and near the air inlet 113. The second evaporation section 153 is bent relative to the first evaporation section 151 and is spaced apart from the air duct assembly 130, extending in the front-rear direction to prevent interference between the air duct assembly 130 and the second evaporation section 153 during the process of removing the air conditioner housing 110 in the front-rear direction. One end of the second evaporation section 153 is connected to the first evaporation section 151, and the other end of the second evaporation section 153 is connected to the third evaporation section 155, which is located on the rear side of the air duct assembly 130.

[0033] In this embodiment, the air conditioner 100 is a cabinet air conditioner. The cross-sectional schematic diagram of the air conditioner is shown in this embodiment. Components and structures not shown in the air conditioner 100 can be referenced from existing cabinet air conditioners.

[0034] In this embodiment, the first evaporation section 151 and the third evaporation section 155 are disposed on the rear side of the air duct assembly 130. The second evaporation section 153 is bent relative to the first evaporation section 151 and is spaced apart from the air duct assembly 130, extending in the front-rear direction to prevent interference between the air duct assembly 130 and the second evaporation section 153 during the process of removing the air conditioner housing 110 in the front-rear direction. During actual disassembly and assembly of the air duct assembly 130, it can be removed from the air conditioner housing 110 in the front-rear direction. The second evaporation section 153 also extends in the front-rear direction and remains spaced apart from the air duct assembly 130, ensuring that the air duct assembly 130 does not interfere with the second evaporation section 153 during removal. Simultaneously, the first evaporation section 151, located on the rear side of the air duct assembly 130, also does not affect the removal of the air duct assembly 130, allowing for quick and easy removal of the air duct assembly 130 in the front-rear direction.

[0035] In this embodiment, the first evaporation section 151 has an arc-shaped cross-section, the second evaporation section 153 has a straight cross-section, and the extension direction of the second evaporation section 153 is parallel to the removal direction of the air duct assembly 130. Simultaneously, the third evaporation section 155 also has a straight cross-section. This embodiment, by defining the shape of the evaporator 150, wherein the second evaporation section 153 is straight and its extension direction is parallel to the removal direction of the air duct assembly 130, ensures that the distance between the air duct assembly 130 and the second evaporation section 153 in the left-right direction does not change during the removal of the air duct assembly 130, ensuring that they remain in a spaced-out state. This further ensures that the second evaporation section 153 will not interfere with the air duct assembly 130 during the removal process. The third evaporation section 155 is also straight and is located on the rear side of the air duct assembly 130. On the one hand, it is convenient to install the evaporator 150 on the evaporator 150 bracket inside the air conditioner housing 110. On the other hand, it avoids interference with the air duct assembly 130 during the removal process, ensuring the smooth removal of the air duct assembly 130.

[0036] It should be noted that in this embodiment, an evaporator 150 bracket is provided inside the air conditioner housing 110. The end of the second evaporator section 153 away from the first evaporator section 151 and the end of the third evaporator section 155 away from the first evaporator section 151 are both mounted on the evaporator 150 bracket, thereby achieving the fixation of the evaporator 150.

[0037] In this embodiment, the angle between the extending direction of the third evaporation section 155 and the extending direction of the second evaporation section 153 is between 45° and 70°. Specifically, the angle between the extending direction of the third evaporation section 155 and the extending direction of the second evaporation section 153 is 60°, where the second evaporation section 153 is arranged along the front-back direction, and the angle between the third evaporation section 155 and the front-back direction is 60°. By limiting the angle between the third evaporation section 155 and the second evaporation section 153, the size of the air cavity can be controlled, resulting in better air delivery within the duct. Furthermore, in this embodiment, the angle between the extending direction of the third evaporation section 155 and the extending direction of the second evaporation section 153 is 60°, which, compared to a conventional evaporator 150, has a larger opening angle, increasing the volume of the air cavity. This allows air to stay near the heat pipes of the evaporator 150 for a longer time, further improving the heat exchange efficiency of the evaporator 150 and increasing its effective utilization rate.

[0038] In this embodiment, the air duct assembly 130 includes a base 131 and a cross-flow fan blade 133. The first evaporation section 151 and the second evaporation section 153 are respectively disposed near the two ends of the base 131 and together with the base 131 form an air cavity. The cross-flow fan blade 133 is disposed in the air cavity and is rotatably disposed on the base 131. The first evaporation section 151 is disposed on the rear side of the cross-flow fan blade 133. The second evaporation section 153 is spaced apart from the cross-flow fan blade 133, and the tangent on the outer circumference of the cross-flow fan blade 133 along the front-back direction is parallel to the second evaporation section 153 to prevent the cross-flow fan blade 133 from interfering with the second evaporation section 153 during the process of removing the air conditioner housing 110 along the front-back direction. Specifically, by limiting the tangent of the cross-flow fan blade 133 along the front-to-back direction to be parallel to the second evaporation section 153, the cross-flow fan blade 133 will not come into contact with or interfere with the second evaporation section 153 during the removal of the air duct assembly 130, thereby further avoiding the second evaporation section 153 from affecting the removal and assembly of the cross-flow fan blade 133.

[0039] It should be noted that the outer circumference of the cross-flow fan blade 133 here refers to the outer circumference formed by the rotation trajectory of the cross-flow fan blade 133. This circumference limits the range of motion of the cross-flow fan blade 133, meaning that the range of motion of the cross-flow fan blade 133 will not exceed this outer circumference. Furthermore, the tangent along the front-back direction is parallel to the second evaporation section 153, ensuring that the cross-flow fan blade 133 will not interfere with the second evaporation section 153. During the disassembly of the air duct assembly 130, the movement trajectory of the cross-flow fan blade 133 is also along the front-back direction. Therefore, it can be ensured that the distance between the cross-flow fan blade 133 and the second evaporation section 153 remains unchanged during the disassembly process, thus avoiding interference between the two.

[0040] In this embodiment, the end of the third evaporation section 155 away from the first evaporation section 151 is provided with a first mounting point K, and the end of the second evaporation section 153 away from the first evaporation section 151 is provided with a second mounting point P. The line KP connecting the first mounting point K and the second mounting point P is located between the center O of the cross-flow fan blade 133 and the first evaporation section 151. Specifically, the first mounting point K and the second mounting point P are located on the same cross-section, and the first mounting point K is located on the end face of the third evaporation section 155 near the edge of the second evaporation section 153, and the second mounting point P is located on the end face of the second evaporation section 153 near the edge of the third evaporation section 155. Here, it can be assumed that the first evaporation section 151, the second evaporation section 153, and the third evaporation section 155 are all located on one side of the connecting line KP. By limiting the end connecting line of the second evaporation section 153 and the third evaporation section 155 to be located between the center of the cross-flow fan blade 133 and the first evaporation section 151, the first evaporation section 151 is relatively further away from the cross-flow fan blade 133. The gap between the first evaporation section 151 and the cross-flow fan blade 133 is increased, thereby increasing the volume of the air cavity, making the heat exchange efficiency of the evaporator 150 higher, and increasing the effective utilization rate of the evaporator 150.

[0041] It should be noted that the center O of the cross-flow fan blade 133 here refers to the center of its outer circumference. The greater the distance between the line KP and the center O, the larger the air cavity is, and the more it can improve the heat exchange efficiency of the evaporator 150.

[0042] In this embodiment, the air conditioner housing 110 is provided with a first endpoint A and a second endpoint B at both ends along the direction perpendicular to the second evaporation section 153, and a third endpoint C is provided on the second evaporation section 153. The first endpoint A, the second endpoint B and the third endpoint C are located on the same straight line, and the distance L1 between the first endpoint A and the third endpoint C is 0.2 times to 0.4 times the distance between the second endpoint B and the third endpoint C. Specifically, the second evaporation section 153 is located between the first endpoint A and the air duct assembly 130. The first endpoint A is located on the left side of the air conditioning housing 110, and the second endpoint B is located on the right side of the air conditioning housing 110. The distance L1 between the first endpoint A and the third endpoint C is 0.3 times the distance between the second endpoint B and the third endpoint C. By limiting the ratio of the distances L1 and L2, the actual positional relationship of the second evaporation section 153 in the air conditioning housing 110 is limited, which also increases the distance between the second evaporation section 153 and the cross-flow fan blade 133, further expanding the volume of the air cavity, making the heat exchange efficiency of the evaporator 150 higher, and increasing the effective utilization rate of the evaporator 150.

[0043] It should be noted that the ratio of the distance L1 between the first endpoint A and the third endpoint C to the distance between the second endpoint B and the third endpoint C indicates the relative position of the second evaporation section 153 in the air conditioner housing 110. The smaller the ratio, the closer the second evaporation section 153 is to the air conditioner housing 110. By limiting the ratio to 0.3, the second evaporation section 153 is closer to the air conditioner housing 110 than the conventional evaporator 150, thereby increasing the volume of the air cavity.

[0044] In this embodiment, both the first endpoint A and the second endpoint B are located on the outer surface of the air conditioner housing 110, and the third endpoint C is located on the side surface of the second evaporator section 153 closest to the first endpoint A. Since the third endpoint C is located on the side surface of the second evaporator section 153 closest to the first endpoint A, the distance L1 between the first endpoint A and the third endpoint C indicates the distance between the corresponding positions of the second evaporator section 153 and the outer surface of the air conditioner housing 110. Of course, the first endpoint A and the second endpoint B can also be located on the inner surface of the air conditioner housing 110, and the ratio of the distance L1 between the first endpoint A and the third endpoint C to the distance between the second endpoint B and the third endpoint C can be adjusted accordingly.

[0045] In this embodiment, the air conditioner housing 110 has a circular cross-section, and the line connecting the first endpoint A and the second endpoint B coincides with the center O of the air conditioner housing 110. Specifically, the circular cross-section of the air conditioner housing 110 makes its overall shape cylindrical. The line connecting the first endpoint A and the second endpoint B is the line connecting the outer diameter of the air conditioner housing 110, and the third endpoint C is also located on this outer diameter line. This makes the distance measurement more accurate and provides better reference, facilitating correct alignment during assembly.

[0046] In this embodiment, the air conditioner housing 110 includes a front panel 115 and a rear panel 117. The front panel 115 is mounted on the rear panel 117 in the front-to-back direction. The evaporator 150 and the air duct assembly 130 are detachably connected to the rear panel 117. Specifically, the front panel 115 has an air outlet 111, and the rear panel 117 has an air inlet 113, which is also provided with an air inlet grille. The evaporator 150 is connected to the rear panel 117 through an evaporator 150 bracket. The air duct assembly 130 is also detachably mounted to the rear panel 117. When actually disassembling the air duct assembly 130, the front panel 115 or a part of the structure on the front panel 115 can be removed first to expose the air duct assembly 130, and then the air duct assembly 130 can be removed in the front-to-back direction, which is very convenient.

[0047] In this embodiment, an electric auxiliary heating module 170 is also provided between the first evaporation section 151 and the air duct assembly 130. Specifically, the electric auxiliary heating module 170 is located between the first evaporation section 151 and the cross-flow fan blade 133, allowing the gas entering the air cavity to directly contact the electric auxiliary heating module 170, thereby realizing the electric auxiliary heating function during heating. Furthermore, the electric auxiliary heating module 170 is parallel to the connecting line KP, enabling the electric auxiliary heating module 170 to face the airflow direction, further improving its working efficiency.

[0048] In this embodiment, a sliding door assembly is also provided on the front side of the air outlet 111. The sliding door assembly is slidably disposed on the front panel 115 and is used to open or close the air outlet 111.

[0049] In summary, this embodiment provides an air conditioner 100 in which a first evaporator section 151 is disposed behind the air duct assembly 130, and a second evaporator section 153 is bent relative to the first evaporator section 151 and spaced apart from the air duct assembly 130, extending in the front-rear direction to prevent interference between the air duct assembly 130 and the second evaporator section 153 during the removal of the air conditioner housing 110 in the front-rear direction. During actual disassembly and assembly of the air duct assembly 130, it can be removed from the air conditioner housing 110 in the front-rear direction. The second evaporator section 153 also extends in the front-rear direction and remains spaced apart from the air duct assembly 130, thus preventing interference between the air duct assembly 130 and the second evaporator section 153 during removal. Simultaneously, the first evaporator section 151, located behind the air duct assembly 130, also does not affect the removal of the air duct assembly 130, allowing for quick and easy removal of the air duct assembly 130 in the front-rear direction. Furthermore, by limiting the relative position of the second evaporation section 153 in the air conditioning housing 110, the air cavity is enlarged, thereby increasing the heat exchange efficiency of the evaporator 150 and increasing the effective utilization rate of the evaporator 150.

[0050] 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 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 by comprising: The air conditioner includes an air conditioner housing (110), an air duct assembly (130), and an evaporator (150). The air duct assembly (130) and the evaporator (150) are both disposed inside the air conditioner housing (110). An air outlet (111) and an air inlet (113) are respectively disposed on the front and rear sides of the air conditioner housing (110). The air duct assembly (130) is disposed close to the air outlet (111). The evaporator (150) includes an integrally disposed first evaporation section (151) and a second evaporation section (153). The first evaporation section (151) is disposed on the rear side of the air duct assembly (130) and close to the air inlet (113). The second evaporation section (153) is bent relative to the first evaporation section (151) and is spaced apart from the air duct assembly (130) and extends in the front-back direction to prevent interference between the air duct assembly (130) and the second evaporation section (153) during the process of removing the air conditioner housing (110) in the front-back direction. The first evaporation section (151) has an arc-shaped cross section, the second evaporation section (153) has a straight cross section, and the extension direction of the second evaporation section (153) is parallel to the removal direction of the air duct assembly (130). The evaporator (150) further includes a third evaporation section (155), one end of the second evaporation section (153) is connected to the first evaporation section (151), and the other end of the second evaporation section (153) is connected to the third evaporation section (155). The third evaporation section (155) is located on the rear side of the air duct assembly (130), and a first mounting point K is provided at the end of the third evaporation section (155) away from the first evaporation section (151). A second mounting point P is provided at the end of the second evaporation section (153) away from the first evaporation section (151). The line KP connecting the first mounting point K and the second mounting point P is located between the center O of the cross-flow fan blade (133) of the air duct assembly (130) and the first evaporation section (151). An electric auxiliary heating module (170) is also provided between the first evaporation section (151) and the air duct assembly (130), and the electric auxiliary heating module (170) is parallel to the connecting line KP.

2. The air conditioner of claim 1, wherein The cross-section of the third evaporation section (155) is also linear.

3. The air conditioner of claim 2, wherein The angle between the extension direction of the third evaporation section (155) and the extension direction of the second evaporation section (153) is between 45° and 70°.

4. The air conditioner of claim 2, wherein The air duct assembly (130) includes a base (131) and a cross-flow fan (133). The first evaporation section (151) and the second evaporation section (153) are respectively disposed near the two ends of the base (131) and together with the base (131) form an air cavity. The cross-flow fan (133) is disposed in the air cavity and is rotatably disposed on the base (131). The first evaporation section (151) is disposed on the rear side of the cross-flow fan (133). The second evaporation section (153) is spaced apart from the cross-flow fan (133), and the tangent on the outer circumference of the cross-flow fan (133) along the front-back direction is parallel to the second evaporation section (153) to prevent interference between the cross-flow fan (133) and the second evaporation section (153) during the process of removing the air conditioner housing (110) along the front-back direction.

5. The air conditioner according to claim 1 or 2, wherein The air conditioner housing (110) has a first endpoint A and a second endpoint B respectively at both ends along the direction perpendicular to the second evaporation section (153), and a third endpoint C is provided on the second evaporation section (153). The first endpoint A, the second endpoint B and the third endpoint C are located on the same straight line, and the distance L1 between the first endpoint A and the third endpoint C is 0.2 times to 0.4 times the distance between the second endpoint B and the third endpoint C.

6. The air conditioner of claim 5, wherein The first endpoint A and the second endpoint B are both located on the outer surface of the air conditioner housing (110), and the third endpoint C is located on the side surface of the second evaporation section (153) near the first endpoint A.

7. The air conditioner of claim 5, wherein The air conditioner housing (110) has a circular cross-section, and the line connecting the first endpoint A and the second endpoint B coincides with the center O of the air conditioner housing (110).

8. The air conditioner according to claim 1 or 2, wherein The air conditioning housing (110) includes a front panel (115) and a rear panel (117). The front panel (115) is mounted on the rear panel (117) along the front-rear direction. The evaporator (150) and the air duct assembly (130) are detachably connected to the rear panel (117).

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