Air conditioner indoor unit

Abstract

The application relates to the air conditioning technical field and discloses an air conditioner indoor unit. The air conditioner indoor unit comprises a shell, a first air inlet, a second air inlet, an air outlet, a heat exchange air duct and an auxiliary air inlet air duct, the two ends of the heat exchange air duct are communicated with the first air inlet and the air outlet respectively, the air inlet of the auxiliary air inlet air duct is communicated with the second air inlet, the air outlet of the auxiliary air inlet air duct is connected with the heat exchange air duct, indoor air which has not been heat exchanged can flow into the auxiliary air inlet air duct through the second air inlet; a sealing device is arranged in the auxiliary air inlet air duct to open or seal the auxiliary air inlet air duct, the auxiliary air inlet air duct is communicated with the heat exchange air duct when the sealing device opens the auxiliary air inlet air duct, and the auxiliary air inlet air duct is disconnected with the heat exchange air duct when the sealing device closes the auxiliary air inlet air duct. The embodiment can reduce the mixing of indoor air and heat exchange air under the condition of normal air outlet, and improves the air outlet effect of the air conditioner indoor unit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, for example to an air conditioner indoor unit. BACKGROUND

[0002] With the development of society and the continuous improvement of people's living standards, various air conditioners have become one of the indispensable electrical appliances in people's daily life. Various air conditioners can lower or raise the ambient temperature when the ambient temperature is too high or too low, so that people can be in a more comfortable environment. However, in the process of using the air conditioner, the wind blown out by the air conditioner is obtained by heat exchange of the heat exchanger, especially in the cooling mode, the temperature of the wind after heat exchange is low. When the cold or hot wind after heat exchange is directly blown to the user, the user's body will feel uncomfortable, affecting the user's experience.

[0003] In the related art, an air conditioner indoor unit is disclosed, which includes a base, a shell, a heat exchanger, a heat exchange fan and an indoor air module. The base is provided with a heat exchange air outlet. The shell is mounted on the base and is provided with an indoor air suction port, a heat exchange air inlet and an indoor air outlet corresponding to the position of the heat exchange air outlet. The heat exchanger and the heat exchange fan are both mounted on the base and located in the shell. The indoor air module is mounted in the shell and has an indoor air inlet and an indoor air outlet. The indoor air inlet corresponds to the position of the indoor air suction port, and the indoor air outlet is arranged adjacent to the heat exchange air outlet and located above the heat exchange air outlet. The indoor air outlet mixes with the heat exchange air outlet and flows out of the indoor air outlet.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] In the related art, the indoor air outlet and the heat exchange air outlet are arranged adjacent to each other. The heat exchange air outlet blows out the heat exchange air, which mixes with the indoor air blown out of the indoor air outlet and flows out of the indoor air outlet. However, in the case where the user does not need to blow out mixed air, when the wind blown out of the heat exchange air outlet flows to the air outlet, due to the effect of wind pressure, part of the indoor air will still flow in the indoor air module and flow out of the indoor air outlet, which will mix with the heat exchange air and reduce the normal air outlet effect of the air conditioner indoor unit.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0007] The following presents a simplified summary of some aspects of the disclosure in order to provide a basic understanding. This summary is not an extensive overview of the disclosure and is not intended to identify key / critical elements or to delineate the scope of the disclosure. Its sole purpose is to present some aspects of the disclosure in a simplified form as a prelude to the more detailed description that is presented later.

[0008] The air conditioner indoor unit provided by the embodiments of the present disclosure can realize mixed air outlet and normal air outlet (i.e. non-mixed air outlet), and improve the air outlet effect of the air conditioner indoor unit.

[0009] According to the embodiments provided by the present application, an air conditioner indoor unit is provided, which comprises a shell, a first air inlet, a second air inlet, an air outlet, a heat exchange air duct, and an auxiliary air inlet air duct. The two ends of the heat exchange air duct are respectively communicated with the first air inlet and the air outlet. The air inlet of the auxiliary air inlet air duct is communicated with the second air inlet. The air outlet of the auxiliary air inlet air duct is connected with the heat exchange air duct. The indoor air that has not been heat exchanged can flow into the auxiliary air inlet air duct through the second air inlet. A sealing device is arranged in the auxiliary air inlet air duct to open or seal the auxiliary air inlet air duct. When the sealing device opens the auxiliary air inlet air duct, the auxiliary air inlet air duct is communicated with the heat exchange air duct. When the sealing device closes the auxiliary air inlet air duct, the auxiliary air inlet air duct is disconnected with the heat exchange air duct.

[0010] In some optional embodiments, the air conditioner indoor unit further comprises a cross-flow fan arranged in the heat exchange air duct. The axial side wall of the cross-flow fan is provided with an auxiliary air inlet communicated with the inside of the cross-flow fan. The air outlet of the auxiliary air inlet air duct is arranged opposite to the auxiliary air inlet. When the sealing device opens the auxiliary air inlet air duct, the auxiliary air inlet is communicated with the auxiliary air inlet air duct.

[0011] In some optional embodiments, the air conditioner indoor unit further comprises a mixed air fan arranged in the auxiliary air inlet air duct or the auxiliary air inlet. The mixed air fan drives the indoor air to flow along the auxiliary air inlet air duct when the sealing device opens the auxiliary air inlet air duct.

[0012] In some optional embodiments, the air conditioner indoor unit further comprises a first driving device. The driving end of the first driving device is connected with the cross-flow fan to drive the cross-flow fan to rotate.

[0013] The mixed air fan is connected with the driving end of the first driving device. The mixed air fan rotates synchronously with the cross-flow fan. Alternatively,

[0014] The air conditioner indoor unit further comprises a second driving device. The second driving device is connected with the sealing device. The driving end of the second driving device is connected with the mixed air fan to drive the mixed air fan to rotate.

[0015] In some optional embodiments, the sealing device and the mixed air fan are arranged in sequence along the flow direction of the air in the auxiliary air inlet air duct.

[0016] In some optional embodiments, the shell comprises: a duct shell defining a first air duct; a volute connected with the duct shell and defining a second air duct and a third air duct, the second air duct being provided on an axial side wall of the volute, and the third air duct having two ends respectively communicating with the first air inlet and the air outlet of the air conditioner, the auxiliary air inlet duct comprising the first air duct and the second air duct, and the heat exchange air duct comprising the third air duct; in a case where the sealing device opens the auxiliary air inlet duct, one end of the first air duct communicates with the second air inlet, and two ends of the second air duct respectively communicate with the other end of the first air duct and the third air duct; wherein the cross-flow fan is located in the third air duct, and the sealing device is provided in the first air duct or the second air duct.

[0017] In some optional embodiments, the auxiliary air inlet has a diameter area greater than or equal to that of the auxiliary air inlet.

[0018] In some optional embodiments, the auxiliary air inlet has a diameter area greater than or equal to that of the auxiliary air inlet.

[0019] In some optional embodiments, the auxiliary air inlet has a diameter area greater than or equal to that of the auxiliary air inlet.

[0020] In some optional embodiments, the auxiliary air inlet has a diameter area greater than or equal to that of the auxiliary air inlet.

[0021] The air conditioner indoor unit provided by the embodiments of the present disclosure can achieve the following technical effects:

[0022] In the embodiment, the two ends of the heat exchange air duct are communicated with the first air inlet and the air outlet of the air conditioner respectively, and the heat exchange air can flow in the heat exchange air duct. The air inlet of the auxiliary air inlet duct is communicated with the second air inlet, and the indoor air without heat exchange can flow into the auxiliary air inlet duct through the second air inlet. The air outlet of the auxiliary air inlet duct is connected with the heat exchange air duct. The sealing device is arranged in the auxiliary air inlet duct, and the auxiliary air inlet duct is communicated with the heat exchange air duct when the sealing device opens the auxiliary air inlet duct. In this way, when the mixed air outlet, the indoor air can flow into the heat exchange air duct through the auxiliary air inlet duct, and the mixed air outlet is blown out through the air outlet of the air conditioner, so as to realize the mixed air outlet of the air conditioner indoor unit. The auxiliary air inlet duct is disconnected with the heat exchange air duct when the sealing device closes the auxiliary air inlet duct, so as to reduce the indoor air flowing into the heat exchange air duct under the influence of the air pressure of the heat exchange air duct. The embodiment of the present disclosure can realize the mixed air outlet of the air conditioner indoor unit, and can also realize the normal air outlet of the air conditioner indoor unit, that is, only the heat exchange air without mixing with the indoor air is blown out. And the embodiment can reduce the mixing of indoor air and heat exchange air in the case of normal air outlet, and improve the air outlet effect of the air conditioner indoor unit.

[0023] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0024] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitation on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limitation, and wherein:

[0025] Figure 1 is a structure schematic view of one view angle of an air conditioner indoor unit provided by the embodiment of the present disclosure;

[0026] Figure 2 is a structure schematic view of another view angle of an air conditioner indoor unit provided by the embodiment of the present disclosure;

[0027] Figure 3 is Figure 2 is a sectional structure schematic view of A-A direction in

[0028] Figure 4 is a local structure schematic view of an air conditioner indoor unit provided by the embodiment of the present disclosure;

[0029] Figure 5 is a local sectional structure schematic view of another air conditioner indoor unit provided by the embodiment of the present disclosure;

[0030] Figure 6 is a local sectional structure schematic view of another air conditioner indoor unit provided by the embodiment of the present disclosure;

[0031] Figure 7 is another partial cross-sectional structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0032] Figure 8 is another partial structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0033] Figure 9 is Figure 8 is an enlarged structural schematic view of part B in FIG. 8;

[0034] Figure 10 is another partial structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0035] Figure 11 is another partial structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0036] Figure 12 is another partial cross-sectional structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0037] Figure 13 is another partial structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0038] Figure 14 is another partial structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure.

[0039] Reference signs:

[0040] 100, shell; 110, heat exchange air duct; 111, heat exchanger; 112, first air inlet; 113, air conditioner air outlet; 120, auxiliary air inlet air duct; 121, avoidance groove; 130, volute; 131, first axial side wall; 132, second air duct; 133, third air duct; 200, cross-flow fan; 210, auxiliary air inlet; 240, connecting plate; 241, center plate; 2411, limiting hole; 242, connecting spoke; 300, air mixing fan; 310, connecting shaft; 320, fan blade; 330, center shaft; 400, first driving device; 410, second driving device; 500, sealing device; 510, fixed plate; 511, ventilation opening; 512, fixed shaft; 513, sub-fixed plate; 514, connecting protrusion; 520, sealing plate; 521, rotating plate; 5211, annular rack; 522, sub-sealing plate; 5221, arc-shaped rack; 530, first gear; 540, second driving assembly; 550, second gear. DETAILED DESCRIPTION

[0041] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below with reference to the accompanying drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0042] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0043] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0044] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0045] The term "and / or" is a description of the association relationship of the object, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.

[0046] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0047] The embodiments of the present disclosure provide an air conditioner indoor unit, such as Figures 1 to 14As shown, the indoor unit of the air conditioner includes a housing 100 and a sealing device 500. The housing 100 defines a first air inlet 112, a second air inlet, an air conditioning outlet 113, a heat exchange duct 110, and an auxiliary air inlet duct 120. The two ends of the heat exchange duct 110 are connected to the first air inlet 112 and the air conditioning outlet 113, respectively. The air inlet of the auxiliary air inlet duct 120 is connected to the second air inlet, and the air outlet of the auxiliary air inlet duct 120 is connected to the heat exchange duct 110. Indoor air that has not undergone heat exchange can flow into the auxiliary air inlet duct 120 through the second air inlet. The sealing device 500 is disposed inside the auxiliary air inlet duct 120 to open or seal the auxiliary air inlet duct 120. When the sealing device 500 opens the auxiliary air inlet duct 120, the auxiliary air inlet duct 120 is connected to the heat exchange duct 110; when the sealing device 500 closes the auxiliary air inlet duct 120, the auxiliary air inlet duct 120 is disconnected from the heat exchange duct 110.

[0048] In this embodiment, the two ends of the heat exchange duct 110 are connected to the first air inlet 112 and the air conditioning outlet 113, respectively, allowing heat exchange air to flow within the heat exchange duct 110. The air inlet of the auxiliary air inlet duct 120 is connected to the second air inlet, allowing unheated indoor air to flow into the auxiliary air inlet duct 120 through the second air inlet. The air outlet of the auxiliary air inlet duct 120 is connected to the heat exchange duct 110. A sealing device 500 is disposed within the auxiliary air inlet duct 120. When the sealing device 500 is open, the auxiliary air inlet duct 120 is connected to the heat exchange duct 110. Thus, during mixed air output, indoor air can flow into the heat exchange duct 110 through the auxiliary air inlet duct 120, and the mixed air within the heat exchange duct 110 is then blown out through the air conditioning outlet 113, achieving mixed air output from the indoor unit of the air conditioner. With the sealing device 500 closing the auxiliary air inlet duct 120, the auxiliary air inlet duct 120 is disconnected from the heat exchange duct 110. This reduces the amount of indoor air flowing into the heat exchange duct 110 due to the influence of air pressure. This embodiment of the present disclosure can achieve both mixed airflow from the indoor unit and normal airflow from the indoor unit, i.e., blowing out only heat exchange air that is not mixed with indoor air. Furthermore, this embodiment reduces the mixing of indoor air and heat exchange air under normal airflow conditions, improving the airflow efficiency of the indoor unit.

[0049] In some alternative embodiments, such as Figures 5 to 10 As shown, the sealing device 500 includes a fixed plate 510 and a sealing plate 520. The fixed plate 510 is connected to the inner wall of the auxiliary air inlet duct 120, and the fixed plate 510 is provided with a vent 511. The sealing plate 520 is connected to the fixed plate 510, and the sealing plate 520 can move relative to the vent 511 to open or seal the vent 511.

[0050] In the optional embodiment, the fixed plate 510 is connected with the inner side wall of the auxiliary air inlet duct 120, and the sealing plate 520 is connected with the fixed plate 510, so that the sealing device 500 is arranged in the auxiliary air inlet duct 120. The sealing plate 520 can move relative to the air vent 511 to open or seal the air vent 511. In this way, when the sealing plate 520 opens the air vent 511, the indoor air that has not been heat-exchanged can flow in the auxiliary air inlet duct 120 through the air vent 511, that is, the sealing device 500 opens the auxiliary air inlet duct 120. When the sealing plate 520 seals the air vent 511, the sealing plate 520 blocks the flow of indoor air, that is, the sealing device 500 seals the auxiliary air inlet duct 120.

[0051] Further, the fixed plate 510 comprises a fixed shaft 512 and a sub-fixed plate 513, the fixed shaft 512 is arranged in the auxiliary air inlet duct 120. Along the radial direction of the fixed shaft 512, the two ends of the sub-fixed plate 513 are respectively connected with the outer side wall of the fixed shaft 512 and the inner side wall of the auxiliary air inlet duct 120, and the sub-fixed plate 513 is configured with one or more air vents 511. When the number of air vents 511 is multiple, the multiple air vents 511 are arranged at intervals along the circumferential direction of the fixed shaft 512.

[0052] The sealing plate 520 comprises a rotating plate 521 and a sub-sealing plate 522, the rotating plate 521 is arranged in a ring shape, the rotating plate 521 is sleeved on the outer side of the fixed shaft 512, and the rotating plate 521 is rotationally connected with the fixed shaft 512. One end of the sub-sealing plate 522 is connected with the rotating plate 521, the number of the sub-sealing plate 522 is the same as and corresponds to the number of the air vent 511, and the sealing plate 520 can rotate relative to the air vent 511 to open or seal the air vent 511.

[0053] In this embodiment, the rotating plate 521 is rotationally connected with the fixed shaft 512, one end of the sub-sealing plate 522 is connected with the rotating plate 521, and the sub-sealing plate 522 can rotate synchronously with the rotating plate 521 relative to the air vent 511 to open or seal the air vent 511.

[0054] In one specific embodiment, in combination with Figures 5 to 7 As shown in the figure, the end of the rotating plate 521 is provided with an annular rack 5211, and the sealing device 500 further comprises a first driving assembly and a first gear 530, the first driving assembly is connected with the fixed shaft 512, the first gear 530 is connected with the driving end of the first driving assembly, and the first gear 530 is engaged with the annular rack 5211.

[0055] In this embodiment, the first driving assembly is connected with the fixed shaft 512 to fix the first driving assembly. The driving end of the first driving assembly is connected with the first gear 530, and the first driving assembly drives the first gear 530 to rotate. The first gear 530 is engaged with the annular rack 5211 of the rotating plate 521, and the rotation of the first gear 530 drives the annular rack 5211 to rotate, thereby driving the rotating plate 521 to rotate relative to the fixed shaft 512. The sub-sealing plate 522 is connected with the rotating plate 521, and the rotating plate 521 rotates to drive the sub-sealing plate 522 to rotate relative to the air vent 511, thereby opening or closing the air vent 511.

[0056] In another optional embodiment, in combination with Figure 8 and Figure 9 As shown in the figure, the side wall of the auxiliary air inlet duct 120 is provided with a avoiding groove 121, and the other end of the sub-sealing plate 522 extends into the avoiding groove 121, and the other end of the sub-sealing plate 522 is provided with an arc-shaped rack 5221. The sealing device 500 further comprises a second driving assembly 540 and a second gear 550, and the second driving assembly 540 is connected with the shell 100. The second gear 550 is connected with the driving end of the second driving assembly 540, and the second gear 550 is engaged with the arc-shaped rack 5221.

[0057] With this optional embodiment, the side wall of the auxiliary air inlet duct 120 is provided with a avoiding groove 121, one end of the sub-sealing plate 522 is connected with the rotating plate 521, and the other end of the sub-sealing plate 522 extends into the avoiding groove 121, and the other end of the sub-sealing plate 522 is provided with an arc-shaped rack 5221. The driving end of the second driving assembly 540 is connected with the second gear 550, and the second driving assembly 540 drives the second gear 550 to rotate. The second gear 550 is engaged with the arc-shaped rack 5221, and the rotation of the second gear 550 drives the arc-shaped rack 5221 to rotate, that is, the sub-sealing plate 522 provided with the arc-shaped rack 5221 rotates. The plurality of sub-sealing plates 522 are connected with the rotating plate 521, and the rotation of the sub-sealing plate 522 provided with the arc-shaped rack 5221 drives the rotating plate 521 to rotate, thereby driving the plurality of sub-sealing plates 522 to rotate synchronously to realize the opening or sealing of the air vent 511.

[0058] Further, along the flow direction of the gas in the auxiliary air inlet duct 120, the sub-sealing plate 522 and the fixed plate 510 are sequentially arranged.

[0059] In this embodiment, the side wall of the auxiliary air inlet duct 120 is provided with a relief groove 121, the other end of the sub-sealing plate 522 extends into the relief groove 121, and the sealing plate 520 and the fixed plate 510 are sequentially arranged. That is, along the flow direction of the gas in the auxiliary air inlet duct 120, the relief groove 121, the fixed plate 510 and the cross-flow fan 200 are sequentially arranged. In this way, in the case that the sub-sealing plate 522 seals the air vent 511, the occurrence of the indoor air entering the inside of the cross-flow fan 200 through the relief groove 121 can be reduced, thereby improving the sealing effect of the sealing device 500 on the auxiliary air inlet duct 120. That is, in the case that no air mixing is needed, the amount of indoor air entering the inside of the cross-flow fan 200 for air mixing is reduced.

[0060] In the case that the sub-sealing plate 522 opens the air vent 511, the sub-sealing plate 522 is arranged in overlap with the fixed plate 510 to expose the air vent 511, so that the air vent 511 can be ventilated. In the case that the sub-sealing plate 522 seals the air vent 511, the sub-sealing plate 522 covers the air vent 511 from above to shield the air vent 511 and seal the air vent 511.

[0061] Optionally, the width of the sub-sealing plate 522 is greater than or equal to the width of the air vent 511 at the corresponding position. In this way, the air vent 511 can be sealed when the sub-sealing plate 522 moves to the position of the air vent 511, and the sealing effect of the sealing device 500 on the auxiliary air inlet duct 120 is improved.

[0062] In some optional embodiments, as shown in Figures 4 to 10 The two ends of the sub-fixed plate 513 are connected with the side wall of the fixed shaft 512 and the inner side wall of the auxiliary air inlet duct 120, respectively, and a plurality of sub-fixed plates 513 are arranged at intervals along the circumference of the fixed shaft 512. Adjacent two sub-fixed plates 513, the fixed shaft 512 and the auxiliary air inlet duct 120 enclose the air vent 511.

[0063] In this embodiment, the two ends of the sub-fixed plate 513 are connected with the side wall of the fixed shaft 512 and the inner side wall of the auxiliary air inlet duct 120, respectively, and a plurality of sub-fixed plates 513 are arranged at intervals along the circumference of the fixed shaft 512. In this way, adjacent two sub-fixed plates 513, the outer side wall of the fixed shaft 512 and the inner side wall of the auxiliary air inlet duct 120 can enclose the air vent 511, so that the indoor air in the auxiliary air inlet duct 120 can flow through the air vent 511 when passing through the sealing device 500.

[0064] Further, the width of the sub-sealing plate 522 is less than or equal to the width of the sub-fixed plate 513 at the corresponding position, and the width of the air vent 511 is less than or equal to the width of the sub-fixed plate 513 at the corresponding position.

[0065] The sub-sealing plate 522 is arranged in the position corresponding to the sub-fixing plate 513 in the case of opening the air vent 511, and the width of the sub-sealing plate 522 is less than or equal to the width of the sub-fixing plate 513 in the corresponding position, so as to reduce the case that the sub-sealing plate 522 still blocks part of the air vent 511 when the air vent 511 is opened.

[0066] As shown in the examples, Figures 3 to 14 The air conditioner indoor unit further comprises a cross-flow fan 200 arranged in the heat exchange air duct 110, and the axial side wall of the cross-flow fan 200 is provided with an auxiliary air inlet 210 in communication with the inside of the cross-flow fan 200. The air outlet of the auxiliary air inlet duct 120 is arranged opposite to the auxiliary air inlet 210. In the case that the sealing device 500 opens the auxiliary air inlet duct 120, the auxiliary air inlet 210 is in communication with the auxiliary air inlet duct 120.

[0067] In this embodiment, the cross-flow fan 200 is arranged in the heat exchange air duct 110, and the cross-flow fan 200 can drive the heat exchange air to flow in the heat exchange air duct 110. Further, the air conditioner indoor unit further comprises a heat exchanger 111 arranged in the heat exchange air duct 110, and the heat exchanger 111 and the cross-flow fan 200 are arranged in sequence along the flow direction of the heat exchange air. In this way, indoor air enters the heat exchange air duct 110 under the driving of the cross-flow fan 200, exchanges heat with the heat exchanger 111 in the heat exchange air duct 110 to form heat exchange air. The heat exchange air continues to flow along the heat exchange air duct 110 to enter the inside of the cross-flow fan 200.

[0068] The axial side wall of the cross-flow fan 200 is provided with an auxiliary air inlet 210 in communication with the inside of the cross-flow fan 200. In the case that the sealing device 500 opens the auxiliary air inlet duct 120, the auxiliary air inlet 210 is in communication with the auxiliary air inlet duct 120. Another indoor air flows into the auxiliary air inlet duct 120 through the second air inlet, and flows into the inside of the cross-flow fan 200 through the auxiliary air inlet duct 120 and the auxiliary air inlet 210, to mix with the heat exchange air in the inside of the cross-flow fan 200 to form mixed air. The mixed air flows out of the cross-flow fan 200 to flow out of the shell 100 through the air outlet 113 of the air conditioner, to realize the mixed air outlet of the air conditioner indoor unit.

[0069] The auxiliary air inlet 210 is arranged on the axial side wall of the cross-flow fan 200, and the indoor air driven by the air mixing fan 300 blows into the inside of the cross-flow fan 200 along the axial direction of the cross-flow fan 200 through the auxiliary air inlet 210. The heat exchange air passes through the cross-flow fan 200 along the radial direction of the cross-flow fan 200, and the flow directions of the heat exchange air and the indoor air are different, so that the mixing effect of the indoor air and the heat exchange air can be improved in the mixing process. Thus, the uniformity of the temperature of the mixed air blown out of the air conditioner indoor unit is improved, and the user experience is improved.

[0070] When the sealing device 500 closes the auxiliary air inlet duct 120, the auxiliary air inlet duct 120 is disconnected from the auxiliary air inlet 210, and the indoor air that has not been heat exchanged cannot flow from the auxiliary air inlet duct 120 into the auxiliary air inlet 210 and the heat exchange air duct 110, thereby reducing the mixing of the heat exchange air and the indoor air in the case of normal air outlet of the air conditioner indoor unit, and improving the air outlet effect of the air conditioner indoor unit.

[0071] As shown in Figures 5 to 7 , Figures 11 to 14 , the air conditioner indoor unit further comprises a mixed air fan 300 arranged in the auxiliary air inlet duct 120 or the auxiliary air inlet 210, so as to drive the indoor air to flow along the auxiliary air inlet duct 120 when the sealing device 500 opens the auxiliary air inlet duct 120.

[0072] In one specific embodiment, as shown in Figure 5 , Figure 11 and Figure 12 , the air conditioner indoor unit further comprises a first driving device 400, and the driving end of the first driving device 400 is connected with the cross-flow fan 200 to drive the cross-flow fan 200 to rotate. The mixed air fan 300 is connected with the driving end of the first driving device 400, and the mixed air fan 300 rotates synchronously with the cross-flow fan 200.

[0073] In this embodiment, the cross-flow fan 200 and the mixed air fan 300 are connected with the first driving device 400, and the first driving device 400 can drive the cross-flow fan 200 and the mixed air fan 300 to rotate synchronously, so as to realize air mixing during the process that the cross-flow fan 200 drives the heat exchange air to flow, and adjust the temperature of the air outlet of the air conditioner indoor unit.

[0074] And the auxiliary air inlet duct 120 of the embodiment of the present disclosure is provided with a sealing device 500, and even if the cross-flow fan 200 and the mixed air fan 300 rotate synchronously in the case of normal air outlet of the air conditioner indoor unit, the sealing device 500 can close the auxiliary air inlet duct 120, reduce the case that the mixed air fan 300 continues to drive the indoor air to flow into the heat exchange air duct 110 through the auxiliary air inlet duct 120, improve the proportion of the air volume of the heat exchange air in the case of normal air outlet of the air conditioner indoor unit, and improve the air outlet effect of the air conditioner indoor unit.

[0075] Optionally, the first driving device 400 comprises a first driving end and a second driving end arranged oppositely, the first driving device 400 is arranged between the cross-flow fan 200 and the mixed air fan 300, the first driving end is connected with the cross-flow fan 200, and the second driving end is connected with the mixed air fan 300, so as to drive the cross-flow fan 200 and the mixed air fan 300 to rotate synchronously.

[0076] For example, the driving end of the first driving device 400 is connected with the cross-flow fan 200, and the mixing fan 300 comprises a connecting shaft 310, which is connected with the axial side wall of the cross-flow fan 200, and the cross-flow fan 200 drives the mixing fan 300 to rotate through the connecting shaft 310.

[0077] With the optional embodiment, the driving end of the first driving device 400 is connected with the cross-flow fan 200, and the first driving device 400 drives the cross-flow fan 200 to rotate. The mixing fan 300 comprises a connecting shaft 310, which is connected with the axial side wall of the cross-flow fan 200, and the cross-flow fan 200 drives the mixing fan 300 to rotate through the connecting shaft 310, so as to realize the synchronous rotation of the cross-flow fan 200 and the mixing fan 300. The mixing fan 300 is connected with the first driving device 400 through the cross-flow fan 200.

[0078] Optionally, the cross-flow fan 200 further comprises a connecting plate 240, which is connected with the axial side wall of the cross-flow fan 200 provided with the auxiliary air inlet 210, and the axis of the cross-flow fan 200 is located at the connecting position of the connecting plate 240. The connecting shaft 310 is connected with the connecting position.

[0079] With the optional embodiment, the axial side wall of the cross-flow fan 200 provided with the auxiliary air inlet 210 is provided with the connecting plate 240, and the connecting shaft 310 is connected with the connecting position of the connecting plate 240. In this way, the connecting shaft 310 and the axis of the cross-flow fan 200 are located on the same straight line, and the connecting shaft 310 extends along the straight line where the axis of the cross-flow fan 200 is located.

[0080] Further, the connecting plate 240 is connected with the inner side wall of the auxiliary air inlet 210, and the connecting plate 240 comprises a center plate 241 and one or more connecting spokes 242. The center plate 241 is connected with the connecting shaft 310. The two ends of the connecting spoke 242 are respectively connected with the outer side wall of the center plate 241 and the inner side wall of the auxiliary air inlet 210. In the case that the connecting spoke 242 is multiple, the multiple connecting spokes 242 are arranged along the circumference of the cross-flow fan 200.

[0081] In the optional embodiment, the center plate 241 is connected with the connecting shaft 310, i.e. the connecting position is located at the center plate 241. The two ends of the connecting spoke 242 are connected with the outer side wall of the center plate 241 and the inner side wall of the auxiliary air inlet 210 respectively. In the case that the connecting spoke 242 is in plurality, the plurality of connecting spokes 242 are arranged at intervals along the circumference of the cross-flow fan 200. In this way, the indoor air driven by the mixed air fan 300 can enter the inside of the cross-flow fan 200 through the space between the adjacent two connecting spokes 242. On the basis that the auxiliary air inlet 210 is arranged on the axial side wall of the cross-flow fan 200, the cross-flow fan 200 and the mixed air fan 300 can be coaxially arranged by the connecting plate 240, so that the cross-flow fan 200 drives the mixed air fan 300 to rotate synchronously. When the sealing device 500 opens the auxiliary air inlet 210, the indoor air driven by the mixed air fan 300 can directly flow into the inside of the cross-flow fan 200 through the auxiliary air inlet 210.

[0082] Optionally, along the radial direction of the cross-flow fan 200 and in the direction of the center plate 241 towards the inner side wall of the auxiliary air inlet 210, the width of the connecting spoke 242 gradually increases.

[0083] In the embodiment, the diameter of the center plate 241 is smaller than the inner diameter of the auxiliary air inlet 210, and along the direction of the center plate 241 towards the inner side wall of the auxiliary air inlet 210, the width of the connecting spoke 242 gradually increases. In this way, the connecting length of the connecting spoke 242 and the inner side wall of the auxiliary air inlet 210 can be increased, so as to improve the connecting stability between the connecting spoke 242 and the inner side wall of the auxiliary air inlet 210, thereby increasing the stability of the cross-flow fan 200 to transmit the rotating force to the mixed air fan 300, and improving the working stability and reliability of the air conditioner indoor unit.

[0084] In another specific embodiment, as shown in Figure 6 and Figure 13 , the mixed air fan 300 is arranged in the auxiliary air inlet 210, and the mixed air fan 300 comprises a fan blade 320, and the end of the fan blade 320 is connected with the inner side wall of the auxiliary air inlet 210.

[0085] In the optional embodiment, the mixing fan 300 is arranged in the auxiliary air inlet 210, and the end of the fan blade 320 of the mixing fan 300 is connected with the inner side wall of the auxiliary air inlet 210, so that the mixing fan 300 is connected with the cross-flow fan 200. When the cross-flow fan 200 rotates, the inner side wall of the auxiliary air inlet 210 can drive the fan blade 320 to rotate, that is, drive the mixing fan 300 to rotate. Thus, the indoor air that has not been heat-exchanged flows into the inside of the cross-flow fan 200 and mixes with the heat-exchanged air in the inside of the cross-flow fan 200. In this embodiment, the fan blade 320 of the mixing fan 300 is directly connected with the inner side wall of the auxiliary air inlet 210, which reduces the use of connecting components, increases the connection stability of the mixing fan 300 and the cross-flow fan 200, reduces the production cost of the air conditioner indoor unit, and increases the working stability and reliability of the air conditioner indoor unit.

[0086] Optionally, the number of the fan blades 320 is multiple, and the mixing fan 300 further comprises a central shaft 330, and the start ends of the multiple fan blades 320 are connected with the circumferential side wall of the central shaft 330 along the circumference of the cross-flow fan 200.

[0087] Further, the ratio of the inner diameter of the auxiliary air inlet 210 to the outer diameter of the central shaft 330 ranges from 3 to 4. In this way, the outer diameter of the central shaft 330 is reduced, so that the area of the auxiliary air inlet 210 occupied by the central shaft 330 is reduced, the air volume of the indoor air flowing into the inside of the cross-flow fan 200 and the air volume of the air conditioner indoor unit are increased, and the temperature adjustment capacity of the heat-exchanged air is improved.

[0088] Further, the first end of the fan blade 320 and the second end of the fan blade 320 are sequentially arranged along the rotation direction of the cross-flow fan 200. Wherein, the straight line distance between the first end of the fan blade 320 and the impeller assembly of the cross-flow fan 200 is less than the straight line distance between the second end of the fan blade 320 and the impeller assembly along the axial direction of the cross-flow fan 200.

[0089] In this embodiment, the straight line distance between the first end of the fan blade 320 and the impeller assembly is less than the straight line distance between the second end of the fan blade 320 and the impeller assembly along the axial direction of the cross-flow fan 200, and the fan blade 320 is arranged obliquely. In this way, when the impeller rotates, the fan blade 320 rotates from the first end to the second end, and the fan blade 320 can drive the air to rotate from the second end to the first end along the fan blade 320, so as to drive the air flow, and the indoor air flows into the inside of the cross-flow fan 200 through the auxiliary air inlet 210.

[0090] In still another specific embodiment, as Figure 7 , Figure 8 and Figure 14As shown, the air conditioner indoor unit further comprises a first driving device 400 and a second driving device 410. The driving end of the first driving device 400 is connected with the cross flow fan 200 to drive the cross flow fan 200 to rotate. The second driving device 410 is connected with the sealing device 500, and the driving end of the second driving device 410 is connected with the mixed air fan 300 to drive the mixed air fan 300 to rotate.

[0091] With the optional embodiment, the driving end of the second driving device 410 is connected with the mixed air fan 300 to drive the mixed air fan 300 to rotate, and the driving end of the first driving device 400 is connected with the cross flow fan 200 to drive the cross flow fan 200 to rotate. The first driving device 400 and the second driving device 410 drive the cross flow fan 200 and the mixed air fan 300 to rotate, respectively. The air conditioner indoor unit can drive the first driving device 400 and the second driving device 410 to rotate synchronously according to needs, so that the rotating speed of the cross flow fan 200 is the same as that of the mixed air fan 300, or the first driving device 400 and the second driving device 410 can be driven to rotate asynchronously according to needs, so that the rotating speed of the cross flow fan 200 is not the same as that of the mixed air fan 300, thereby adjusting the ratio of indoor air to heat exchange air during air mixing and the air volume of the air conditioner indoor unit. Similarly, the first driving device 400 can be driven to rotate, and the second driving device 410 can not be driven to rotate, and the sealing device 500 can seal the auxiliary air inlet duct 120, so that indoor air without heat exchange cannot flow into the inside of the cross flow fan 200, air mixing is not performed, and the air conditioner indoor unit can normally blow air. In this way, the air conditioner indoor unit can have multiple air blowing modes to meet the multiple air blowing needs of users and improve the user experience.

[0092] The second driving device 410 is connected with the sealing device 500, so as to fix the second driving device 410.

[0093] Optionally, when the sealing device 500 is arranged in the second air duct 132, the air conditioner indoor unit further comprises a connecting protrusion 514 connected with the fixed plate 510, and the second driving device 410 is arranged in the connecting protrusion 514.

[0094] In this embodiment, the second driving device 410 is connected with the fixed plate 510 through the connecting protrusion 514, and the sealing device 500 can fix the second driving device 410, so as to reduce the components used for installing the second driving device 410, improve the utilization rate of components, and reduce the production cost of the air conditioner indoor unit.

[0095] In this embodiment, when the cross flow fan 200 further comprises a connecting plate 240 and the mixed air fan 300 comprises a connecting shaft 310, the center plate 241 is provided with a limiting hole 2411, and the connecting shaft 310 is rotationally connected with the center plate 241 to radially position the connecting shaft 310.

[0096] With the optional embodiment, the connecting shaft 310 of the mixing fan 300 is rotationally connected with the limiting hole 2411 of the center plate 241, so that the limiting hole 2411 can limit the radial movement of the connecting shaft 310, so as to reduce the radial movement of the mixing fan 300 during rotation, and improve the operation stability and reliability of the mixing fan 300.

[0097] Optionally, a bearing is arranged in the limiting hole 2411, the limiting hole 2411 is connected with the outer ring of the bearing, the connecting shaft 310 is connected with the inner ring of the bearing, and the outer ring and the inner ring can rotate relative to each other, so that the connecting shaft 310 can rotate relative to the limiting hole 2411, and the rotational friction of the connecting shaft 310 against the limiting hole 2411 is reduced.

[0098] Exemplarily, the shaft center of the cross-flow fan 200 and the shaft center of the mixing fan 300 are located on the same straight line. That is, the cross-flow fan 200 and the mixing fan 300 are coaxially arranged.

[0099] Optionally, the mixing fan 300 comprises an axial fan or a centrifugal fan.

[0100] In the case that the mixing fan 300 is an axial fan, the air outlet of the axial fan is arranged opposite to the auxiliary air inlet 210, and the indoor air flowed out by the axial fan can directly enter the auxiliary air inlet 210. In the case that the mixing fan 300 is a centrifugal fan, the centrifugal fan is coaxially arranged with the cross-flow fan 200, and the air outlet of the centrifugal fan is not arranged towards the auxiliary air inlet 210. The shell 100 is further configured with a communication air duct, two ends of the communication air duct are respectively communicated with the air outlet of the centrifugal fan and the auxiliary air inlet 210, so as to guide the indoor air flowed out by the centrifugal fan to the auxiliary air inlet 210. In the case that the fan blade 320 of the mixing fan 300 is connected with the inner side wall of the auxiliary air inlet 210, the fan blade 320 is the fan blade 320 of the axial fan.

[0101] Exemplarily, as shown in Figures 5 to 7 , along the flow direction of the indoor air in the auxiliary air inlet air duct 120, the sealing device 500 and the mixing fan 300 are sequentially arranged.

[0102] In this embodiment, the sealing device 500 and the mixing fan 300 are sequentially arranged, so that the sealing device 500 can also reduce the situation that the mixing fan 300 continuously sucks air into the auxiliary air inlet air duct 120 under the normal air outlet condition of the air conditioner, reduce the noise generated by the indoor unit of the air conditioner, and improve the user experience.

[0103] Further, the air conditioner indoor unit further comprises a duct shell and a volute 130. The duct shell defines a first air duct. The volute 130 is connected with the duct shell, and the volute 130 defines a second air duct 132 and a third air duct 133. The second air duct 132 is arranged on an axial side wall of the volute 130, and the third air duct 133 is in communication with the first air inlet 112 and the air conditioner air outlet 113 respectively. The auxiliary air inlet duct 120 comprises the first air duct and the second air duct 132, and the heat exchange air duct 110 comprises the third air duct 133. When the sealing device 500 opens the auxiliary air inlet duct 120, one end of the first air duct is in communication with the second air inlet, and the other end of the first air duct and the third air duct 133 are in communication with the second air duct 132 respectively. The cross-flow fan 200 is arranged in the third air duct 133, and the sealing device 500 is arranged in the first air duct or the second air duct 132.

[0104] In the embodiment, the cross-flow fan 200 is arranged in the third air duct 133 of the volute 130, so that a vortex can be formed in the cross-flow fan 200 when the cross-flow fan 200 rotates, thereby driving the heat exchange air to flow. The air mixing fan 300 is arranged on the side of the cross-flow fan 200 where the auxiliary air inlet 210 is arranged, and the volute 130 is provided with the second air duct 132, so that the indoor air can pass through the volute 130 and enter the auxiliary air inlet 210, i.e. the third air duct 133.

[0105] Optionally, the volute 130 comprises a first axial side wall 131, which is arranged opposite to the side wall of the cross-flow fan 200 where the auxiliary air inlet 210 is arranged, and the second air duct 132 penetrates the first axial side wall 131 along the axial direction of the cross-flow fan 200.

[0106] Optionally, the diameter area of the air outlet of the auxiliary air inlet duct 120 is greater than or equal to the diameter area of the auxiliary air inlet 210.

[0107] In the embodiment, the cross-flow fan 200 is arranged in the heat exchange air duct 110, and the air outlet of the auxiliary air inlet duct 120 is in communication with the heat exchange air duct 110 when the air outlet of the auxiliary air inlet duct 120 is in communication with the auxiliary air inlet 210. The diameter area of the air outlet of the auxiliary air inlet duct 120 is greater than or equal to the diameter area of the auxiliary air inlet 210, so that the amount of indoor air that has not been heat exchanged and flows into the heat exchange air duct 110 can be increased, thereby improving the temperature regulation capacity of the heat exchange air and the air outlet amount of the air conditioner indoor unit. Even if the indoor air flowing out of the air outlet of the auxiliary air inlet duct 120 does not flow into the auxiliary air inlet 210, the indoor air can still flow into the heat exchange air duct 110, i.e. the third air duct 133, to mix with the heat exchange air in the heat exchange air duct 110.

[0108] Further, the orthographic projection of the auxiliary air inlet 210 on the air outlet of the auxiliary air inlet duct 120 is entirely located in the air outlet of the auxiliary air inlet duct 120.

[0109] In the embodiment, the auxiliary air inlet 210 is arranged opposite to the outlet of the auxiliary air inlet duct 120, so as to increase the air volume of the indoor air entering the auxiliary air inlet 210 and improve the air mixing effect of the heat exchange air and the indoor air, thereby improving the air outlet effect of the air conditioner indoor unit.

[0110] Optionally, the side wall of the auxiliary air inlet 210 extends towards the outlet of the auxiliary air inlet duct 120, the air inlet end of the auxiliary air inlet 210 is flush with the air outlet end of the auxiliary air inlet duct 120, or the air inlet end of the auxiliary air inlet 210 extends into the air outlet end of the auxiliary air inlet duct 120.

[0111] In the embodiment, the side wall of the auxiliary air inlet 210 extends towards the outlet of the auxiliary air inlet duct 120, so as to reduce the distance between the auxiliary air inlet 210 and the outlet of the auxiliary air inlet duct 120, reduce the air volume of the indoor air flowing out of the distance, increase the air volume of the indoor air entering the auxiliary air inlet 210, and improve the air mixing effect of the heat exchange air and the indoor air.

[0112] In addition, the side wall of the auxiliary air inlet 210 extends towards the outlet of the auxiliary air inlet duct 120, increasing the axial length of the side wall of the auxiliary air inlet 210. In the case that the air mixing fan 300 is arranged in the auxiliary air inlet 210, the fan blades 320 of the air mixing fan 300 can be located entirely in the auxiliary air inlet 210, so as to reduce the occurrence of the indoor air flowing out of the auxiliary air inlet 210, increase the air volume of the indoor air entering the auxiliary air inlet 210, and improve the air mixing effect of the heat exchange air and the indoor air.

[0113] The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural and other changes. The embodiments are merely representative of the possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be varied. Parts and features of some embodiments can be included or substituted for parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An air conditioner indoor unit characterized by comprising: The air conditioner indoor unit comprises: a shell defining a first air inlet, a second air inlet, an air outlet, a heat exchange air duct, and an auxiliary air inlet air duct, two ends of the heat exchange air duct being communicated with the first air inlet and the air outlet respectively, an air inlet of the auxiliary air inlet air duct being communicated with the second air inlet, an air outlet of the auxiliary air inlet air duct being connected with the heat exchange air duct, and indoor air not subjected to heat exchange being capable of flowing into the auxiliary air inlet air duct through the second air inlet; a sealing device arranged in the auxiliary air inlet air duct to open or seal the auxiliary air inlet air duct, the auxiliary air inlet air duct being communicated with the heat exchange air duct when the sealing device opens the auxiliary air inlet air duct, and the auxiliary air inlet air duct being disconnected with the heat exchange air duct when the sealing device closes the auxiliary air inlet air duct; a cross-flow fan arranged in the heat exchange air duct, an axial side wall of the cross-flow fan being provided with an auxiliary air inlet communicated with an inside of the cross-flow fan, the air outlet of the auxiliary air inlet air duct being oppositely arranged with the auxiliary air inlet, and the auxiliary air inlet being communicated with the auxiliary air inlet air duct when the sealing device opens the auxiliary air inlet air duct; the shell comprises: an air duct shell defining a first air duct; a volute connected with the air duct shell and defining a second air duct and a third air duct, the second air duct being arranged on an axial side wall of the volute, and two ends of the third air duct being communicated with the first air inlet and the air outlet respectively, the auxiliary air inlet air duct comprising the first air duct and the second air duct, and the heat exchange air duct comprising the third air duct; in a case where the sealing device opens the auxiliary air inlet air duct, one end of the first air duct is communicated with the second air inlet, and two ends of the second air duct are communicated with the other end of the first air duct and the third air duct respectively; wherein the cross-flow fan is located in the third air duct, the sealing device is arranged in the first air duct or the second air duct, and an area of the air outlet of the auxiliary air inlet air duct is greater than or equal to an area of the auxiliary air inlet. 2.The indoor unit of the air conditioner according to claim 1, characterized by, Further comprising: a mixing fan arranged in the auxiliary air inlet air duct or the auxiliary air inlet to drive indoor air to flow along the auxiliary air inlet air duct when the sealing device opens the auxiliary air inlet air duct. 3.The indoor unit of the air conditioner according to claim 2, characterized by, The air conditioner indoor unit further comprises a first driving device, a driving end of the first driving device being connected with the cross-flow fan to drive the cross-flow fan to rotate; the mixing fan is connected with the driving end of the first driving device, and the mixing fan rotates synchronously with the cross-flow fan; or, the air conditioner indoor unit further comprises a second driving device, the second driving device being connected with the sealing device, and a driving end of the second driving device being connected with the mixing fan to drive the mixing fan to rotate.

4. The air conditioner indoor unit according to claim 2, wherein the sealing device and the mixing fan are arranged in sequence along a flow direction of air in the auxiliary air inlet air duct.

5. The air conditioner indoor unit according to claim 1, wherein a normal projection of the auxiliary air inlet on the air outlet of the auxiliary air inlet air duct is entirely located in the air outlet of the auxiliary air inlet air duct.

6. The air conditioner indoor unit according to claim 1, wherein a side wall of the auxiliary air inlet extends towards the air outlet of the auxiliary air inlet air duct, an air inlet end of the auxiliary air inlet is flush with an air outlet end of the auxiliary air inlet air duct, or the air inlet end of the auxiliary air inlet extends into the air outlet end of the auxiliary air inlet air duct. 7.The air conditioning indoor unit according to any one of claims 1 to 6, characterized by, The sealing device comprises: a fixed plate connected with an inner side wall of the auxiliary air inlet air duct and provided with a ventilation opening. A sealing plate is connected to the fixed plate and is movable relative to the vent to open or seal the vent.

Images