Air conditioner indoor unit

Abstract

The present invention provides an air conditioner indoor unit, comprising: an indoor unit housing, the indoor unit housing having an air inlet, an upper air outlet and a lower air outlet; a first volute assembly and a second volute assembly, the first volute assembly and the second volute assembly are both arranged in the indoor unit housing, the first volute assembly having a first air inlet and a first air outlet that are interconnected, the first air inlet is arranged toward the air inlet, and the first air outlet is arranged toward the upper air outlet; the second volute assembly having a second air inlet and a second air outlet that are interconnected, the second air inlet is arranged back to the air inlet, and the second air outlet is arranged toward the lower air outlet; an air induction component, arranged in the indoor unit housing, the air induction component having an air induction duct, the air inlet of the air induction duct being connected to the air inlet, and the air outlet of the air induction duct being connected to the second air inlet. Through the technical solution provided by the present invention, the technical problem of the complex structure of the air conditioner indoor unit with the upper and lower air outlet functions in the prior art can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning indoor units, and in particular to an air-conditioning indoor unit. Background Art

[0002] At present, with the development of science and technology and the improvement of people's living standards, people have higher and higher requirements for the comfort of air conditioners. In order to avoid the cold wind blowing directly on people and ensure the function of warming people first, the cold air of the air conditioner is set to the upper air outlet and the warm air is set to the lower air outlet. Therefore, air conditioners with upper and lower air outlets are becoming more and more popular.

[0003] However, the air supply system of the conventional air conditioner with up-and-down air outlet has many fan components and a complex structure, and a movable baffle structure is required to realize single up-air outlet or single down-air outlet. Summary of the invention

[0004] The main purpose of the present invention is to provide an air-conditioning indoor unit to solve the technical problem of the complicated structure of the air-conditioning indoor unit with up and down air outlet functions in the prior art.

[0005] In order to achieve the above-mentioned objectives, the present invention provides an indoor unit of an air-conditioning unit, comprising: an indoor unit shell, the indoor unit shell having an air inlet, an upper air outlet and a lower air outlet; a first volute assembly and a second volute assembly, the first volute assembly and the second volute assembly are both arranged in the indoor unit shell, the first volute assembly having a first air inlet and a first air outlet that are connected to each other, the first air inlet is arranged toward the air inlet, and the first air outlet is arranged toward the upper air outlet; the second volute assembly having a second air inlet and a second air outlet that are connected to each other, the second air inlet is arranged back to the air inlet, and the second air outlet is arranged toward the lower air outlet; an air induced component, arranged in the indoor unit shell, the air induced component having an air induced duct, the air induced inlet of the air induced duct is connected to the air inlet, and the air induced outlet of the air induced duct is connected to the second air inlet.

[0006] Furthermore, the air induced draft component includes an air induced draft tube shell, which includes a first tube shell and a second tube shell that are interconnected, the first tube shell and the second tube shell are connected at a preset angle, an air induced draft inlet is formed at one end of the first tube shell away from the second tube shell, the air induced draft inlet is arranged opposite to the air inlet, and an air induced draft outlet is formed at one end of the second tube shell away from the first tube shell, and the air induced draft outlet is located at the second air inlet.

[0007] Furthermore, there are multiple air induced pipe casings, and the first pipe casings of the multiple air induced pipe casings are arranged at intervals around the side of the second volute assembly.

[0008] Furthermore, the first volute assembly and the second volute assembly are arranged at an interval, and the second volute assembly is located on a side of the first volute assembly away from the air inlet portion.

[0009] Furthermore, the first volute assembly includes: a first volute portion and a first fan, the first volute portion having a first inlet, a first outlet and a first air duct connected to the first inlet and the first outlet, the first fan being installed in the first air duct; a first air guide section, which is arranged at the first outlet, and the first air guide section extends toward the upper air outlet.

[0010] Furthermore, the second volute assembly includes: a second volute portion and a second fan, the second volute portion having a second inlet, a second outlet and a second air duct connected to the second inlet and the second outlet, the second fan being installed in the second air duct; a second air guide section, arranged at the second outlet, the second air guide section extending toward the lower air outlet.

[0011] Furthermore, the air conditioner indoor unit also includes: a control mechanism, which is arranged in the indoor unit casing, and the first fan and the second fan are both connected to the control mechanism to control the rotation speed of the first fan and the second fan through the control mechanism to adjust the air volume of the upper air outlet and the air volume of the lower air outlet.

[0012] Furthermore, the air inlet is located on the first side of the indoor unit shell, the upper air outlet and the lower air outlet are both located on the second side of the indoor unit shell, and the first volute assembly, the second volute assembly and the air induction component are all located between the first side of the indoor unit shell and the second side of the indoor unit shell.

[0013] Furthermore, the indoor unit casing includes: a first mounting shell, the first mounting shell includes a first plate body, a second plate body and a third plate body connected in sequence, the first plate body and the third plate body are spaced apart on both sides of the second plate body to enclose a mounting opening, and the upper air outlet part and the lower air outlet part are spaced apart on the second plate body; a second mounting shell, the second mounting shell is an arc-shaped plate, the arc-shaped plate is installed at the mounting opening, and the air inlet part is arranged on the second mounting shell.

[0014] Furthermore, the second volute assembly is arranged on a side of the first volute assembly away from the second mounting shell, and the air conditioner indoor unit includes: an evaporator, the evaporator is an arc-shaped structure, the evaporator is arranged between the second mounting shell and the first volute assembly, and the evaporator is arranged opposite to the air inlet.

[0015] By applying the technical solution of the present invention, the first volute assembly and the second volute assembly are two independent volute assemblies. When working, air is taken in through the first air inlet of the first volute assembly and discharged from the first air outlet, so as to be discharged through the upper air outlet; the second air inlet of the second volute assembly takes in air through the air inlet, and discharges air from the lower air outlet through the second air outlet. Specifically, the upper air outlet is located above the lower air outlet. In this way, it is convenient for the two independent first volute assemblies and the second volute assemblies to take in air separately without affecting each other, and there is no need to set up structures such as wind shields to control the air intake state of the first volute assembly and the second volute assembly. The structure is simple, easy to operate and reliable. Therefore, the air-conditioning indoor unit provided by this embodiment can solve the technical problem of the complex structure of the air-conditioning indoor unit with upper and lower air outlet functions in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 An exploded view of an air conditioner indoor unit provided according to an embodiment of the present invention is shown;

[0018] Figure 2 An exploded view of a first volute assembly and a second volute assembly provided according to an embodiment of the present invention is shown;

[0019] Figure 3 A schematic structural diagram of an air-conditioning indoor unit provided according to an embodiment of the present invention is shown.

[0020] The above drawings include the following reference numerals:

[0021] 10. Indoor unit casing; 11. Air inlet; 12. Upper air outlet; 13. Lower air outlet; 14. First mounting shell; 15. Second mounting shell; 20. Evaporator; 30. First volute assembly; 31. First air inlet; 32. First air outlet; 33. First volute section; 34. First fan; 35. First air guide section; 40. Second volute assembly; 41. Second air inlet; 42. Second air outlet; 43. Second volute section; 44. Second fan; 45. Second air guide section; 50. Air induced component; 51. Air induced inlet; 52. Air induced outlet; 53. First tube shell; 54. Second tube shell. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] like Figures 1 to 3 As shown, an embodiment of the present invention provides an air conditioner indoor unit, which includes an indoor unit housing 10, a first volute assembly 30, a second volute assembly 40 and an air induction component 50. The indoor unit housing 10 has an air inlet 11, an upper air outlet 12 and a lower air outlet 13. The first volute assembly 30 and the second volute assembly 40 are both arranged in the indoor unit housing 10. The first volute assembly 30 and the second volute assembly 40 are two independent volute assemblies. The first volute assembly 30 has a first air inlet 31 and a first air outlet 32 ​​that are interconnected. The first air inlet 31 is arranged toward the air inlet 11, and the first air outlet 32 ​​is arranged toward the upper air outlet 12. The second volute assembly 40 has a second air inlet 41 and a second air outlet 42 that are interconnected. The second air inlet 41 is arranged away from the air inlet 11, and the second air outlet 42 is arranged toward the lower air outlet 13. The air induction component 50 is disposed in the indoor unit casing 10 , and has an air induction duct. An air inlet 51 of the air induction duct is connected to the air inlet portion 11 , and an air outlet 52 of the air induction duct is connected to the second air inlet 41 .

[0024] In the air-conditioning indoor unit provided by this embodiment, the first volute assembly 30 and the second volute assembly 40 are two independent volute assemblies. When working, the first air inlet 31 of the first volute assembly 30 takes in air and discharges air from the first air outlet 32 ​​to discharge air through the upper air outlet 12; the second air inlet 41 of the second volute assembly 40 takes in air through the air induction part and discharges air from the lower air outlet 13 through the second air outlet 42. Specifically, the upper air outlet 12 is located above the lower air outlet 13. In this way, it is convenient for the two independent first volute assemblies 30 and the second volute assemblies 40 to take in air separately without affecting each other, and there is no need to set up structures such as wind shields to control the air intake state of the first volute assembly 30 and the second volute assembly 40. The structure is simple, easy to operate and reliable. Therefore, the air-conditioning indoor unit provided by this embodiment can solve the technical problem of the complex structure of the air-conditioning indoor unit with upper and lower air outlet functions in the prior art.

[0025] Specifically, the air induction component 50 in this embodiment includes an air induction pipe shell, which includes a first pipe shell 53 and a second pipe shell 54 that are interconnected. The first pipe shell 53 and the second pipe shell 54 are connected at a preset angle. The end of the first pipe shell 53 away from the second pipe shell 54 forms an air inlet 51, and the air inlet 51 is arranged opposite to the air inlet 11. The end of the second pipe shell 54 away from the first pipe shell 53 forms an air inlet outlet 52, and the air inlet outlet 52 is located at the second air inlet 41. With such a structural arrangement, it is convenient to move the wind sound box at the air inlet 11 to the second air inlet 41 through the air induction pipe shell, so as to facilitate the normal operation of the second volute assembly 40. Specifically, the air induction pipe shell in this embodiment can be an L-shaped pipe shell structure.

[0026] In this embodiment, there are multiple air induction pipe shells, and the first pipe shells 53 of the multiple air induction pipe shells are arranged at intervals around the side of the second volute assembly 40. With such a structural arrangement, it is convenient to increase the air induction volume of the air induction component 50, so that sufficient air volume can be provided to the second air inlet 41 through the multiple air induction pipe shells, so that the second air inlet 41 can perform air induction operation according to actual needs.

[0027] Specifically, the first volute assembly 30 and the second volute assembly 40 in this embodiment are arranged at intervals, and the second volute assembly 40 is located on the side of the first volute assembly 30 away from the air inlet 11. With such a structural arrangement, the internal structure layout of the air conditioner can be optimized and the compactness of the internal structure of the air conditioner is improved.

[0028] In this embodiment, the first volute assembly 30 includes a first volute portion 33, a first fan 34 and a first air guide section 35. The first volute portion 33 has a first inlet, a first outlet and a first air duct connected to the first inlet and the first outlet. The first fan 34 is installed in the first air duct, the first air guide section 35 is arranged at the first outlet, and the first air guide section 35 is extended toward the upper air outlet 12 so as to guide the air to the upper air outlet 12 through the first air guide section 35. Specifically, the first volute portion 33 in this embodiment includes a first volute body and a first volute cover, and the first volute cover is arranged on the first volute body.

[0029] Specifically, the second volute assembly 40 in this embodiment includes a second volute portion 43, a second fan 44, and a second air guide section 45. The second volute portion 43 has a second inlet, a second outlet, and a second air duct connected to the second inlet and the second outlet. The second fan 44 is installed in the second air duct. The second air guide section 45 is arranged at the second outlet, and the second air guide section 45 extends toward the lower air outlet 13, so as to guide the air to the lower air outlet 13 through the second air guide section 45. Specifically, the second volute portion 43 in this embodiment includes a second volute body and a second volute cover, and the second volute cover is arranged on the second volute body.

[0030] In this embodiment, the air conditioner indoor unit further includes a control mechanism, and the control structure is arranged in the indoor unit housing 10. The first fan 34 and the second fan 44 are both connected to the control mechanism, so as to adjust the air volume of the upper air outlet and the air volume of the lower air outlet by controlling the rotation speed of the first fan 34 and the second fan 44 by the control mechanism. With such a structural arrangement, the air volume of the first air inlet 31 and the air volume of the second air inlet 41 can be adjusted by controlling the rotation speed of the first fan 34 and the rotation speed of the second fan 44 by the control mechanism, so as to control the air volume of the first air outlet 32 ​​and the air volume of the second air outlet 42, thereby controlling the air volume of the upper air outlet 12 and the air volume of the lower air outlet 13, so as to better improve the indoor comfort.

[0031] Specifically, the air inlet 11 in this embodiment is located at the first side of the indoor unit housing 10, the upper air outlet 12 and the lower air outlet 13 are both located at the second side of the indoor unit housing 10, and the first volute assembly 30, the second volute assembly 40 and the air induction component 50 are all located between the first side of the indoor unit housing 10 and the second side of the indoor unit housing 10. With such a structural arrangement, the structural layout is optimized and the compactness of the structural arrangement is improved.

[0032] In this embodiment, the indoor unit housing 10 includes a first mounting shell 14 and a second mounting shell 15. The first mounting shell 14 includes a first plate body, a second plate body and a third plate body connected in sequence. The first plate body and the third plate body are arranged at intervals on both sides of the second plate body to enclose the mounting opening. The upper air outlet 12 and the lower air outlet 13 are arranged at intervals on the second plate body. The second mounting shell 15 is an arc-shaped plate, which is installed at the mounting opening, and the air inlet 11 is arranged on the second mounting shell 15. With such a structural setting, the structure is simple, easy to manufacture, and easy to install.

[0033] Specifically, the second volute assembly 40 in this embodiment is arranged on a side of the first volute assembly 30 away from the second mounting shell 15, the air conditioner indoor unit includes an evaporator 20, the evaporator 20 is an arc-shaped structure, the evaporator 20 is arranged between the second mounting shell 15 and the first volute assembly 30, and the evaporator 20 is arranged opposite to the air inlet 11. With such a structural arrangement, it is convenient to improve the compactness of the structural arrangement, further optimize the internal structure layout, and improve the compactness of the structural arrangement.

[0034] The present invention designs an air conditioner with an upper and lower air outlet mode, wherein the air duct system of the air conditioner is mainly composed of two single centrifugal fan air duct systems (i.e., a first volute assembly 30 and a second volute assembly 40), and the two single air duct systems are arranged horizontally front to back to improve the compactness of the structure, and the air induction component 50 is located on both sides of the air duct system, wherein the air inlet 11 is arranged on the rear side of the air conditioner, and the wind first enters the interior of the air conditioner through the air inlet 11 (i.e., the rear side of the air conditioner), and then passes through the evaporator 20 for heat exchange, and a part of the wind after the heat exchange directly enters the first volute assembly 30, and another part of the wind is guided to the front side by the air induction component 50 to enter the second volute assembly 40, and upper and lower air outlets are arranged on the panel to respectively complete the upper and lower air outlets of the air conditioner; wherein the two single fan air duct systems do not affect each other, and the air volume of the upper and lower air outlets can be freely adjusted according to user needs, and different air outlet modes such as single upper air outlet, single lower air outlet, and upper and lower air outlet can be realized, and the overall air duct system has a simple structure, complete functions, and low air duct noise. It is of great significance to the development of air conditioners with up and down air outlets.

[0035] The air induction components 50 are located on both sides of the air duct system. Figure 3As shown, its function is to guide the wind passing through the evaporator 20 at the rear side to the front side and enter the lower air outlet duct system (the second volute assembly 40). Figure 2 As shown, the air inlet 11 is arranged at the rear side of the air conditioner. The wind first enters the air conditioner through the air inlet 11 (i.e., the rear side of the air conditioner), and then passes through the evaporator 20 for heat exchange. After the heat exchange, part of the wind directly enters the upper air outlet duct system (the first volute assembly 30). Another part of the wind is led to the front side through the air induction components 50 on both sides of the duct to enter the lower air outlet duct system, wherein the panel component is provided with upper and lower air outlets, which can complete the upper and lower air outlet mode of the air conditioner. Among them, the two single-fan duct systems (the first volute assembly 30 and the second volute assembly 40) do not affect each other, and the air volume of the upper and lower air outlets can be freely adjusted according to user needs, so that different air outlet modes such as single upper air outlet, single lower air outlet, and upper and lower air outlet can be realized. The overall duct system has a simple structure, complete functions, and low duct noise. It is of great significance to the development of air conditioners with upper and lower air outlet modes. The upper air outlet duct component and the lower air outlet duct component can be swapped to achieve the same effect.

[0036] Air enters from the rear side of the air conditioner, with one part of the air entering directly into the upper air outlet duct system, and the other part of the air is introduced into the lower air outlet duct system through the air induction components 50 on both sides, and the upper and lower air outlets of the air conditioner are respectively completed through two single centrifugal fan duct systems.

[0037] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the present invention can realize different air outlet modes such as single upper air outlet, single lower air outlet and upper and lower air outlet, and the air duct system of the present invention is two independent single air duct structures, which are simple in structure and low in noise. The present invention designs an air conditioner with upper and lower air outlet modes, and the air supply system of this air conditioner is composed of two single air duct systems (i.e., a first volute assembly and a second volute assembly), which respectively complete the upper and lower air supply functions of the air conditioner, and the two air ducts do not affect each other, and the air volume of the upper and lower air outlets can be adjusted separately according to user needs. The overall air duct system has a simple structure, low noise and complete functions.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0039] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0040] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0041] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0042] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air conditioner indoor unit, characterized in that: include: An indoor unit casing (10), the indoor unit casing (10) comprising an air inlet (11), an upper air outlet (12) and a lower air outlet (13); A first volute component (30) and a second volute component (40), wherein the first volute component (30) and the second volute component (40) are both arranged in the indoor unit casing (10), the first volute component (30) having a first air inlet (31) and a first air outlet (32) which are connected to each other, the first air inlet (31) being arranged toward the air inlet portion (11), and the first air outlet (32) being arranged toward the upper air outlet portion (12); the second volute component (40) being arranged on a side of the first volute component (30) away from the air inlet portion (11), the second volute component (40) having a second air inlet (41) and a second air outlet (42) which are connected to each other, the second air inlet (41) being arranged away from the air inlet portion (11), and the second air outlet (42) being arranged toward the lower air outlet portion (13); An air induction component (50) is arranged in the indoor unit casing (10), the air induction component (50) having an air induction duct, an air inlet (51) of the air induction duct being in communication with the air inlet portion (11), and an air induction outlet (52) of the air induction duct being in communication with the second air inlet (41); The air induction component (50) comprises an air induction tube shell, the air induction tube shell comprises a first tube shell (53) and a second tube shell (54) which are interconnected, the first tube shell (53) and the second tube shell (54) are connected at a preset angle, one end of the first tube shell (53) away from the second tube shell (54) forms the air inlet (51), the air inlet (51) is arranged opposite to the air inlet portion (11), and one end of the second tube shell (54) away from the first tube shell (53) forms the air inlet (52), the air inlet (52) is located at the second air inlet (41).

2. The air conditioner indoor unit according to claim 1, characterized in that: There are a plurality of air induced pipe casings, and the first pipe casings (53) of the plurality of air induced pipe casings are arranged at intervals around the side of the second volute assembly (40).

3. The air conditioner indoor unit according to claim 1, characterized in that: The first volute component (30) and the second volute component (40) are arranged at an interval, and the second volute component (40) is located on a side of the first volute component (30) away from the air inlet portion (11).

4. The air conditioner indoor unit according to claim 1, characterized in that: The first volute assembly (30) comprises: A first volute portion (33) and a first fan (34), wherein the first volute portion (33) has a first inlet, a first outlet, and a first air duct connected to the first inlet and the first outlet, and the first fan (34) is installed in the first air duct; A first air guiding section (35) is arranged at the first outlet, and the first air guiding section (35) is extended toward the upper air outlet portion (12).

5. The air conditioner indoor unit according to claim 4, characterized in that: The second volute assembly (40) comprises: a second volute portion (43) and a second fan (44), wherein the second volute portion (43) has a second inlet, a second outlet, and a second air duct communicating with the second inlet and the second outlet, and the second fan (44) is installed in the second air duct; A second air guiding section (45) is arranged at the second outlet, and the second air guiding section (45) is extended toward the lower air outlet portion (13).

6. The air conditioner indoor unit according to claim 5, characterized in that: The air conditioner indoor unit also includes: A control mechanism is arranged in the indoor unit casing (10), and the first fan (34) and the second fan (44) are both connected to the control mechanism so as to adjust the air volume of the upper air outlet and the air volume of the lower air outlet by controlling the rotation speed of the first fan (34) and the second fan (44) through the control mechanism.

7. The air conditioner indoor unit according to claim 1, characterized in that: The air inlet portion (11) is located on a first side of the indoor unit casing (10), the upper air outlet portion (12) and the lower air outlet portion (13) are both located on a second side of the indoor unit casing (10), and the first volute assembly (30), the second volute assembly (40) and the air induction component (50) are all located between the first side of the indoor unit casing (10) and the second side of the indoor unit casing (10).

8. The air conditioner indoor unit according to claim 1, characterized in that: The indoor unit casing (10) comprises: A first mounting shell (14), the first mounting shell (14) comprising a first plate body, a second plate body and a third plate body connected in sequence, the first plate body and the third plate body being arranged at intervals on both sides of the second plate body to enclose a mounting opening, and the upper air outlet portion (12) and the lower air outlet portion (13) being arranged at intervals on the second plate body; A second mounting shell (15), wherein the second mounting shell (15) is an arc-shaped plate, the arc-shaped plate is mounted at the mounting opening, and the air inlet portion (11) is arranged on the second mounting shell (15).

9. The air conditioner indoor unit according to claim 8, characterized in that: The second volute assembly (40) is arranged on a side of the first volute assembly (30) away from the second mounting shell (15), and the air conditioner indoor unit comprises: An evaporator (20), the evaporator (20) is an arc-shaped structure, the evaporator (20) is arranged between the second mounting shell (15) and the first volute assembly (30), and the evaporator (20) is arranged opposite to the air inlet portion (11).

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