A window air conditioner

Abstract

The present invention provides a window air conditioner, including an air duct assembly, wherein the air duct assembly is formed by connecting an upper air duct structure and a lower air duct structure, wherein the lower air duct structure is an integral structure, including a first volute portion, a first connecting portion and a lower guide ring, wherein the first connecting portion is located between the first volute portion and the lower guide ring; the upper air duct structure is an integral structure, including a second volute portion, a second connecting portion and an upper guide ring, wherein the second connecting portion is located between the second volute portion and the upper guide ring; the first volute portion and the second volute portion are connected to form a volute structure, and the upper guide ring and the lower guide ring are connected to form a guide ring. The present invention redesigns the overall structure of the window air conditioner, integrates indoor air ducts and outdoor air ducts as well as structures such as partitions, reduces the number and types of parts, facilitates assembly and maintenance, and achieves a significant reduction in the number of parts in the structure, improves production efficiency, improves maintenance efficiency, and reduces product costs.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a window air conditioner. Background Art

[0002] In the prior art, window air conditioners are generally mainly composed of a compressor, a fan, indoor centrifugal fan blades, outdoor axial fan blades, an indoor heat exchanger, an outdoor heat exchanger and their structural functions. The structural and functional parts are composed of a chassis, a front partition, a duct volute, a water tray, a middle partition, a motor bracket, a rear partition, a top cover and other parts. The front structure of the front partition, the duct volute and the top cover constitutes the indoor duct enclosed space, and the rear structure of the rear partition and the top cover constitutes the outdoor duct enclosed space. The prior art solutions have the following problems:

[0003] The existing technology has a large number of structural parts, complex assembly and low efficiency, and a large number of fasteners leads to low product reliability. Summary of the invention

[0004] In view of this, the present invention provides a window air conditioner, which is at least used to solve the technical problem of the large number of window air conditioner parts and complex assembly in the prior art, specifically:

[0005] The present invention provides a window air conditioner, comprising an air duct assembly, wherein the air duct assembly is formed by connecting an upper air duct structure and a lower air duct structure.

[0006] The lower air duct structure is an integral structure, comprising a first volute portion, a first connecting portion and a lower guide ring, wherein the first connecting portion is located between the first volute portion and the lower guide ring;

[0007] The upper air duct structure is an integral structure, comprising a second volute portion, a second connecting portion and an upper guide ring, wherein the second connecting portion is located between the second volute portion and the upper guide ring;

[0008] The first volute portion and the second volute portion are butted together to form a volute structure, and the upper guide ring and the lower guide ring are butted together to form a guide ring.

[0009] Further optionally, first air duct extension portions are formed on both sides of the lower guide ring.

[0010] The upper guide ring is provided with second air duct extensions on both sides.

[0011] The first air duct extension portion and the second air duct extension portion are connected to form an outdoor extended air duct.

[0012] Further optionally, a first anti-flying water rib is formed on the inner side of the lower guide ring, a second anti-flying water rib is formed in the upper guide ring, and the first anti-flying water rib and the second anti-flying water rib are butted together to form a circular anti-flying water rib.

[0013] Further optionally, a lower limit structure is formed on the mating surface of the lower air duct structure and the upper air duct structure.

[0014] An upper limit structure is formed on the mating surface of the upper air duct structure and the lower air duct structure.

[0015] The lower limit structure and the upper limit structure form a limit cooperation to limit the upper air duct structure and the lower air duct structure.

[0016] Further optionally, an external air inlet is formed on the second connecting portion.

[0017] Further optionally, the window air conditioner further includes a motor bracket,

[0018] The motor bracket comprises a bracket body, a motor mounting seat is formed on the bracket body, and a first end of the bracket body is fixedly connected to the first connecting portion.

[0019] The motor bracket also includes an extended connection portion, which is connected to the second end of the bracket body and extends to both sides of the bracket body. The extended connection portion extends from the external air inlet and is mounted on the upper air duct structure.

[0020] Further optionally, the window air conditioner further comprises an outer cover and a chassis, the lower air duct structure is arranged on the chassis, and the outer cover is arranged on the outside of the air duct assembly.

[0021] The outer cover comprises a top wall and two side walls arranged opposite to each other, wherein the top wall is connected to the extended connecting portion of the motor bracket through a connecting piece.

[0022] The bottoms of the two side walls are connected to the chassis via connecting pieces.

[0023] Further optionally, the window air conditioner further comprises a water receiving pan, which is arranged on the chassis and abuts against an end of the first volute portion.

[0024] The first connecting portion is formed with a drainage groove, and the drainage groove extends in a direction from the first volute portion to the lower guide ring.

[0025] The outlet of the water receiving tray is communicated with the drainage groove.

[0026] Further optionally, the window air conditioner further comprises an indoor heat exchanger, and the indoor heat exchanger is arranged on the upper side of the water receiving tray.

[0027] A pipe passing groove is formed on the first volute portion, and the refrigerant pipe of the indoor heat exchanger passes through the pipe passing groove to the other side of the first volute portion.

[0028] Further optionally, the pipe groove and the drainage groove are arranged opposite to each other, and the outlet of the water receiving tray is connected to the drainage groove at the lower side of the pipe groove.

[0029] Further optionally, a compressor mounting portion is formed on the chassis, and the compressor mounting portion is located on a side of the first connecting portion.

[0030] The window air conditioner further includes a compressor assembly mounted to the compressor mounting portion.

[0031] The present invention redesigns the overall structure of the window air conditioner, integrates the indoor air duct and the outdoor air duct as well as the partition and other structures together, reduces the number and types of parts, facilitates assembly and maintenance, and achieves a significant reduction in the number of structural parts, improves production efficiency, improves maintenance efficiency, and reduces product costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail its exemplary embodiments with reference to the accompanying drawings. The accompanying drawings described below are only some embodiments of the present disclosure, and it is clear to a person skilled in the art that other accompanying drawings can be obtained from these accompanying drawings without creative work.

[0033] Figure 1 A schematic diagram showing the structure of an air duct assembly according to an embodiment of the present invention is shown;

[0034] Figure 2 A schematic diagram showing the exploded structure of the air duct assembly according to an embodiment of the present invention;

[0035] Figure 3 A schematic diagram showing the assembly state of the lower air duct structure, the bottom plate and the water receiving tray according to an embodiment of the present invention;

[0036] Figure 4 A schematic diagram showing the assembly state of the air duct structure and the motor bracket in an embodiment of the present invention;

[0037] Figure 5 A schematic diagram showing an exploded structure of a window air conditioner according to an embodiment of the present invention (partial structure is not shown);

[0038] Figure 6 A schematic diagram showing the structure of a motor bracket according to an embodiment of the present invention is shown;

[0039] Figure 7 A schematic diagram showing the exploded structure of a window air conditioner according to an embodiment of the present invention (excluding the outer cover);

[0040] Figure 8 A schematic cross-sectional view (vertical) of a window air conditioner according to an embodiment of the present invention is shown;

[0041] Fig. 9 A cross-sectional schematic diagram (horizontal) of a window air conditioner according to an embodiment of the present invention is shown;

[0042] Fig.10 Show Fig. 9 Enlarged view of point A in the middle.

[0043] In the figure:

[0044] 1. Lower air duct structure; 11. First volute; 111. First baffle; 112. Pipe slot; 12. First connecting portion; 121. Drainage slot; 13. Lower guide ring; 131. First air duct extension; 132. First anti-flying rib; 133. Lower limit structure;

[0045] 2. Upper air duct structure; 21. Second volute; 211. Second baffle; 22. Second connecting portion; 221. External air inlet; 23. Upper guide ring; 231. Second air duct extension; 232. Second anti-flying water rib; 233. Upper limit structure;

[0046] 3. Outer cover; 31. Air inlet grille; 4. Motor bracket; 41. Bracket body; 411. Motor mounting seat; 42. Extended connecting portion; 421. Card edge; 422. Connecting hole;

[0047] 5. Chassis; 6. Drain tray; 7. Indoor heat exchanger; 71. Refrigerant pipe; 8. Outdoor heat exchanger; 91. Drive motor; 92. Indoor fan blades; 93. Outdoor fan blades. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0050] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0051] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0052] In the prior art, window air conditioners have a large number of structural functional parts, and the assembly is complex and inefficient. In addition, the large number of fasteners leads to low product reliability. Due to the process limitations of mold manufacturing and production, the structures that make up the indoor and outdoor air ducts are separate components. At the same time, in order to meet the functional requirements of the structure, the duct volute of the indoor air duct is generally made of foam material, while the surrounding supporting parts such as the front partition, middle partition, and top cover are all steel plates or plastic products. Inconsistent material selection is also a direct cause of the large number of parts. The large number and variety of parts make the manufacturing and maintenance operations of window air conditioners complicated.

[0053] In addition, in the prior art, a water receiving pan is arranged at the lower part of the indoor heat exchanger. The water receiving pan can collect the condensed water of the indoor heat exchanger and divert it to the outdoor side, and then discharge the condensed water through the diversion of the bottom pan. The temperature of the condensed water is relatively low, generally 7°C~10°C. In the part of the bottom pan through which the condensed water flows, due to contact with the condensed water with lower temperature, more condensed water will condense on the outside of the bottom pan and cause water droplets to drip, resulting in a poor user experience.

[0054] At the same time, the condensed water flows from the chassis to the lower part of the axial flow fan blades, and under the action of the guide ring of the axial flow fan blades, the water flies to the outdoor heat exchanger. Because the condensed water flow path is long, the temperature of the condensed water rises. The high water temperature of the water diverted to the outdoor heat exchanger is not conducive to the rapid heat exchange of the air conditioner, which reduces the energy efficiency ratio. In addition, due to the limitations of the manufacturing process, in the prior art, the guide ring part around the axial flow fan blade is generally made of injection molding or metal sheet metal, and its surface is generally smooth, and the mold manufacturing process requires molding. In the process of pumping water from the axial flow fan blades on the outdoor side of the window air conditioner, most of the water flies to the outdoor heat exchanger under the action of the water pumping structure, but some of the water will fly along the guide ring under the rotational force of the guide ring to the outside of the window air conditioner, causing water flying, affecting customer use.

[0055] The present invention redesigns the overall structure of the window air conditioner, integrates the indoor air duct and the outdoor air duct as well as the partition and other structures together, reduces the number and types of parts, facilitates assembly and maintenance, and greatly reduces the number of parts in the structure to improve production efficiency, improve maintenance efficiency, and reduce product costs. In addition, the air duct structure adopts materials with good thermal insulation performance and integrates condensate drainage grooves to solve the problem of condensate insulation, and by setting anti-flying ribs on the outdoor side to cooperate with the axial flow fan blades, it is possible to prevent the axial flow fan blades from splashing water to the outdoor side. The present invention is described in detail below in conjunction with specific embodiments:

[0056] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 As shown, the present invention provides a window air conditioner, including an air duct assembly, wherein the air duct assembly is formed by connecting an upper air duct structure 2 and a lower air duct structure 1.

[0057] The lower air duct structure 1 is an integral structure, comprising a first volute portion 11, a first connecting portion 12 and a lower guide ring 13, wherein the first connecting portion 12 is located between the first volute portion 11 and the lower guide ring 13;

[0058] The upper air duct structure 2 is an integral structure, including a second volute portion 21, a second connecting portion 22 and an upper guide ring 23, wherein the second connecting portion 22 is located between the second volute portion 21 and the upper guide ring 23;

[0059] The first volute part 11 and the second volute part 21 are connected to form a volute structure, and the upper guide ring 23 and the lower guide ring 13 are connected to form a guide ring. Preferably, the upper duct structure 2 and the lower duct structure 1 are respectively formed by integral injection molding. Further, the upper duct structure 2 and the lower duct structure 1 are made of insulation materials, for example, they are made of foamed EPS materials, which can achieve the insulation effect of indoor ducts, outdoor ducts, condensed water, etc. Alternatively, in other embodiments, the upper duct structure 2 and the lower duct structure 1 can also be assembled from multiple components to form an integral structure.

[0060] Specifically, a first volute cavity is formed in the first volute portion 11, a first air inlet baffle is formed on the front side of the first volute cavity, an air inlet gap is formed on the first air inlet baffle, and a guide structure is formed at the air inlet gap; a second volute cavity is formed in the second volute portion 21, a second air inlet baffle is formed on the front side of the second volute cavity, and an air inlet gap is also formed on the second air inlet baffle. The first volute portion 11 and the second volute portion 21 are connected to form an indoor air duct, and the air inlet gaps on the first air inlet baffle and the second air inlet baffle are connected to form an indoor air inlet. Furthermore, an air inlet guide structure is formed at the indoor air inlet to guide the indoor air intake.

[0061] A first partition 111 is formed on the rear side of the first volute cavity, and a second partition 211 is formed on the rear side of the second volute cavity. A motor shaft avoidance opening is formed at relative positions on the first partition 111 and the second partition 211. The first partition 111 and the second partition 211 are connected to each other, and the two motor shaft avoidance openings form a complete motor shaft hole for the motor shaft to extend into the volute cavity and be connected to the indoor fan blade 92 arranged in the volute.

[0062] The outdoor fan blade 93 is arranged in the guide ring. Preferably, a first anti-flying water rib 132 is formed on the inner side of the lower guide ring 13, and a second anti-flying water rib 232 is formed in the upper guide ring 23. The first anti-flying water rib 132 and the second anti-flying water rib 232 are connected to form a circular anti-flying water rib. The anti-flying water rib is arranged on the inner surface of the guide ring and is distributed in a ring shape. The distance between the anti-flying water rib and the outdoor fan blade 93 (axial flow fan blade) is preferably 4mm≤L≤8mm, so as to prevent water from flying to the outdoor side during the water-beating process of the axial flow fan blade.

[0063] Furthermore, if Fig. 9 , Fig.10 As shown, the first anti-flying water rib 132 is a convex rib formed in the lower guide ring 13, and it forms an inner guide slope along the airflow direction. Preferably, the height of the convex rib is A, 1mm≤A≤2.5mm, and the inclination angle of the slope is α, 10°≤α≤40°, thereby avoiding a significant impact on the air volume and effectively solving the problem of flying water. The structure of the second anti-flying water rib 232 is the same as that of the first anti-flying water rib 132.

[0064] A first air duct extension 131 is formed on both sides of the lower guide ring 13, and a second air duct extension 231 is formed on both sides of the upper guide ring 23. The first air duct extension 131 and the second air duct extension 231 are connected to form an outdoor extension air duct. The outdoor extension air duct extends the guidance of the outdoor air flow, so that the air flow guidance effect is better and the heat exchange efficiency on the outdoor side is improved. Preferably, a connection structure connected to the outdoor heat exchanger 8 is formed on the first air duct extension 131 and the second air duct extension 231, which is preferably a through hole, and can be connected to the outdoor heat exchanger 8 through a connector.

[0065] Preferably, a lower limit structure 133 is formed on the mating surface of the lower air duct structure 1 and the upper air duct structure 2, and an upper limit structure 233 is formed on the mating surface of the upper air duct structure 2 and the lower air duct structure 1. The lower limit structure 133 and the upper limit structure 233 form a limit cooperation to limit the upper air duct structure 2 and the lower air duct structure 1.

[0066] In this embodiment, the lower limit structure 133 is a limit column formed on the two end surfaces of the lower guide ring 13, and the upper limit structure 233 is a groove formed on the two end surfaces of the upper guide ring 23, and the limit column is embedded in the groove to form a limit fit. Preferably, in other embodiments, grooves and protrusions can be formed on the contact surfaces of the upper volute part and the lower volute part, respectively. The two can be docked through the groove and the protrusion structure to play a limiting role on the one hand, and can also play a sealing role on the other hand to avoid air leakage at the volute joint. Preferably, sealing ribs are extended to form sealing ribs at both ends of the upper air duct structure 2, that is, the outer sides of the second volute part 21 and the upper guide ring 23, and the sealing ribs are used to seal with the indoor heat exchanger 7 and the outdoor heat exchanger 8, respectively.

[0067] An external air inlet 221 is formed on the second connection part 22, that is, the external air inlet 221 is formed between the upper guide ring 23 and the upper volute part. Preferably, a gap is formed between the second connection part 22 and the first connection part 12, and specifically, a gap is formed on both sides of the second connection part 22 and the first connection part 12, and the two gaps can also be used for outdoor air intake. Multiple outdoor air inlets can increase the outdoor air intake volume.

[0068] The window air conditioner also includes a motor bracket 4, such as Figure 6 , Figure 7 As shown, the motor bracket 4 includes a bracket body 41, a motor mounting seat 411 is formed on the bracket body 41, and a first end of the bracket body 41 is fixedly connected to the first connecting portion 12. The motor bracket 4 also includes an extended connecting portion 42, which is connected to the second end of the bracket body 41 and extends to both sides of the bracket body 41. The extended connecting portion 42 extends from the external air inlet 221 and is set on the upper air duct structure 2.

[0069] Preferably, in this embodiment, the motor bracket 4 is a sheet metal structure, and the extended connection part 42 extends to both sides at the second end of the bracket body 41, and the extended connection part 42 is arranged vertically with the bracket body 41, so that the motor bracket 4 forms a T-shaped structure. The bracket body 41 is arranged vertically, and the drive motor 91 is fixedly arranged in the motor mounting seat 411. The drive motor 91 is a dual-output motor, and the output shafts at both ends are respectively connected to the indoor fan blade 92 (centrifugal fan blade) and the outdoor fan blade 93 (axial fan blade). Preferably, a connecting groove is formed on the first connecting part 12, and the first end of the bracket body 41 is embedded in the connecting groove and fixedly connected by a connecting member. The extended connection part 42 extends from the external air inlet 221 and is located on the upper side of the upper air duct structure 2, and its two ends are respectively arranged on the upper side of the upper volute part and the upper guide ring 23. Preferably, the two ends of the extended connection part 42 form a clamping edge 421, which is clamped with the upper air duct structure 2. Furthermore, a connecting hole 422 is formed on the extending connecting portion 42 for connecting with the outer cover 3 via a connecting piece.

[0070] like Figure 5 As shown, the window air conditioner further includes an outer cover 3 and a chassis 5, the lower air duct structure 1 is arranged on the chassis 5, the outer cover 3 is arranged on the outside of the air duct assembly, the outer cover 3 includes a top wall and two side walls arranged oppositely, the top wall is connected to the extended connection part 42 of the motor bracket 4 through a connecting piece, and the bottom of the two side walls is connected to the chassis 5 through a connecting piece. Further, an air inlet grille 31 is formed on the outer cover 3 at a position opposite to the outdoor air inlet.

[0071] In this embodiment, the outer cover 3 is fixedly connected to the chassis 5 by a fixed connecting piece. At the same time, the outer cover 3 is fixedly connected to the extended connecting portion 42 of the motor bracket 4 by a connecting piece, and the clamping edges 421 at both ends of the extended connecting portion 42 are clamped with the edges of the upper air duct structure 2 to form a limiting fit. The bracket body 41 of the motor bracket 4 is also fixedly connected to the first connecting portion 12 of the lower air duct structure 1, thereby forming a limit for the air duct assembly. The air duct assembly does not need to be fixedly connected to the outer cover 3 or the chassis 5 by a connecting piece, which solves the problem that the thermal insulation material is inconvenient to connect with the connecting piece.

[0072] The window air conditioner also includes a water receiving pan 6, and a water guide rib is arranged on the bottom wall of the water receiving pan 6 to guide the flow of condensed water. The water receiving pan 6 is arranged on the chassis 5 and abuts against the end of the first volute portion 11. A drainage groove 121 is formed on the first connecting portion 12, and the drainage groove 121 extends in the direction from the first volute portion 11 to the lower guide ring 13. Further, the drainage groove 121 forms a gentle slope structure with a gradually decreasing height in the direction from the first volute portion 11 to the lower guide ring 13. By using the flow of condensed water, the outlet of the water receiving pan 6 is connected with the drainage groove 121. The condensed water is discharged through the drainage groove 121, and does not directly contact the chassis 5 during the flow process, thereby avoiding the formation of condensed water outside the chassis 5. Preferably, in other embodiments, the water receiving pan 6 can also form an integrated structure with the downwind duct structure 1, which can further reduce the types and number of parts.

[0073] The window air conditioner further includes an indoor heat exchanger 7, which is disposed on the upper side of the water receiving pan 6. A pipe groove 112 is formed on the first volute portion 11, and a refrigerant pipe 71 of the indoor heat exchanger 7 passes through the pipe groove 112 to the other side of the first volute portion 11. Preferably, the pipe groove 112 is disposed opposite to the drainage groove 121, and the outlet of the water receiving pan 6 is connected to the drainage groove 121 at the lower side of the pipe groove 112.

[0074] A compressor mounting portion is formed on the chassis 5, and the compressor mounting portion is located on the side of the first connecting portion 12. The window air conditioner also includes a compressor assembly, and the compressor assembly is mounted on the compressor mounting portion. The refrigerant pipe 71 of the indoor heat exchanger 7 and the outdoor heat exchanger 8 is connected to the compressor assembly.

[0075] The indoor heat exchanger 7 and the outdoor heat exchanger 8 of the present invention are arranged front and back, and the water tray 6, the downwind duct structure 1, the motor bracket 4, and the upwind duct structure 2 are installed in an integrated manner layer by layer, which can realize the modular assembly of the fan system and facilitate after-sales maintenance. The drainage groove 121 and the drainage port of the water tray 6 and the downwind duct structure 1 can realize the heat preservation after the condensed water is gathered and enter the outdoor wind cavity to avoid the condensation and loss of the condensed water, thereby improving the cooling capacity and energy efficiency of the window air conditioner, and at the same time avoiding the condensation and dripping of the surrounding water caused by the condensed water flow path. At the same time, the method of setting anti-flying water ribs in the guide ring solves the problem of flying water and improves the user experience.

[0076] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent configurations included in the spirit and scope of the appended claims.

Claims

1. A window air conditioner, characterized in that: The window air conditioner comprises: An air duct assembly is formed by connecting an upper air duct structure and a lower air duct structure; the lower air duct structure is an integral structure and includes a first volute portion, a first connecting portion and a lower guide ring, the first connecting portion is located between the first volute portion and the lower guide ring; the upper air duct structure is an integral structure and includes a second volute portion, a second connecting portion and an upper guide ring, the second connecting portion is located between the second volute portion and the upper guide ring; the first volute portion and the second volute portion are connected to form a volute structure, the upper guide ring and the lower guide ring are connected to form a guide ring; an external air inlet is formed on the second connecting portion; Indoor fan blades and outdoor fan blades, the indoor fan blades are arranged in the volute structure, and the outdoor fan blades are arranged in the guide ring; A motor bracket and a driving motor, wherein the motor bracket comprises a bracket body and an extended connecting portion, the bracket body is formed with a motor mounting seat, and the bracket body comprises a first end and a second end; the first end is connected to the first connecting portion, the extended connecting portion is connected to the second end, the extended connecting portion extends from the external air inlet and extends to both sides of the bracket body; the two ends of the extended connecting portion are respectively mounted on the upper sides of the second volute portion and the upper guide ring, and are clamped with the second volute portion and the upper guide ring; the driving motor comprises two output shafts, and the two output shafts are respectively connected to the indoor fan blade and the outdoor fan blade for driving; A chassis and an outer cover, wherein the lower air duct structure is arranged on the chassis, and the outer cover is arranged on the outside of the air duct assembly; the outer cover comprises a top wall and two side walls arranged oppositely, the top wall is connected to the extended connecting part of the motor bracket through a connecting piece, and the bottom of the two side walls is connected to the chassis through a connecting piece.

2. The window air conditioner according to claim 1, characterized in that: The first air duct extension parts are formed on both sides of the lower guide ring, and the second air duct extension parts are formed on both sides of the upper guide ring; The first air duct extension portion and the second air duct extension portion are connected to form an outdoor extended air duct.

3. The window air conditioner according to claim 1, characterized in that: A first anti-flying water rib is formed on the inner side of the lower guide ring, and a second anti-flying water rib is formed in the upper guide ring; the first anti-flying water rib and the second anti-flying water rib are butted against each other to form a circular anti-flying water rib.

4. The window air conditioner according to claim 1, characterized in that: A lower limit structure is formed on the mating surface between the lower air duct structure and the upper air duct structure, and an upper limit structure is formed on the mating surface between the upper air duct structure and the lower air duct structure; The lower limit structure and the upper limit structure form a limit cooperation to limit the upper air duct structure and the lower air duct structure.

5. The window air conditioner according to any one of claims 1 to 4, characterized in that: The window air conditioner further comprises a water receiving pan, which is arranged on the chassis and abuts against an end of the first volute portion; A drainage groove is formed on the first connecting portion, and the drainage groove extends in a direction from the first volute portion to the lower guide ring; The outlet of the water receiving tray is communicated with the drainage groove.

6. The window air conditioner according to claim 5, characterized in that: The window air conditioner further comprises an indoor heat exchanger, and the indoor heat exchanger is arranged on the upper side of the water receiving pan; The first volute portion is formed with a pipe passing groove, and the refrigerant pipe of the indoor heat exchanger passes through the pipe passing groove to the other side of the first volute portion.

7. The window air conditioner according to claim 6, characterized in that: The pipe-passing groove is arranged opposite to the drainage groove, and the outlet of the water receiving tray is communicated with the drainage groove at the lower side of the pipe-passing groove.

8. The window air conditioner according to any one of claims 1 to 4, characterized in that: A compressor mounting portion is formed on the chassis, and the compressor mounting portion is located on a side of the first connecting portion; The window type air conditioner further includes a compressor assembly mounted to the compressor mounting portion.

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