Indoor unit and air conditioner having the same

Abstract

The present invention provides an indoor unit and an air conditioner having the same. The indoor unit includes a shell, a first end of the shell is provided with a first air outlet, and a second end of the shell is provided with a second air outlet; a heat exchanger, the heat exchanger is arranged in the shell to separate the shell into a first cavity and a second cavity, the first air outlet is connected to the first cavity, and the second air outlet is connected to the second cavity; wherein an auxiliary air inlet is also provided on the shell, and the auxiliary air inlet is connected to at least one of the first cavity and the second cavity; an air outlet switching mechanism, the air outlet switching mechanism is arranged in the shell, and the air outlet switching mechanism is used to open or close the auxiliary air inlet. Such a setting can effectively increase the air intake of the indoor unit, thereby effectively improving the air outlet efficiency of the indoor unit and improving the heat exchange performance of the indoor unit.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner equipment, and in particular to an indoor unit and an air conditioner having the same. Background Art

[0002] Existing wall-mounted air conditioners often have only one air outlet, with limited air supply range and performance. The air intake of the air inlet is limited, which cannot meet people's diverse life needs. Air conditioners with upper and lower air outlets not only have a wide air outlet range, but can also turn on the upper air outlet or lower air outlet air supply mode according to user needs, and the air supply mode is diverse. However, due to the limitation of the air intake area, it is difficult to significantly improve the performance of upper and lower air outlet air conditioners. Summary of the invention

[0003] The main purpose of the present invention is to provide an indoor unit and an air conditioner having the same, so as to solve the problem of small air intake volume of the air conditioner in the prior art.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, an indoor unit is provided, comprising: a shell, a first end of the shell is provided with a first air outlet, and a second end of the shell is provided with a second air outlet; a heat exchanger, the heat exchanger is arranged in the shell to separate the shell into a first cavity and a second cavity, the first air outlet is connected to the first cavity, and the second air outlet is connected to the second cavity; wherein an auxiliary air inlet is also provided on the shell, and the auxiliary air inlet is connected to at least one of the first cavity and the second cavity; an air outlet switching mechanism, the air outlet switching mechanism is arranged in the shell, and the air outlet switching mechanism is used to open or close the auxiliary air inlet.

[0005] Furthermore, the auxiliary air inlet includes a first air inlet, and the first air inlet is arranged on the side wall of the first cavity.

[0006] Furthermore, there are two first air inlets, and the two first air inlets are respectively arranged on opposite sides of the shell.

[0007] Furthermore, the auxiliary air inlet also includes a second air inlet, which is arranged on the side wall of the second cavity, the second air inlet and the first air inlet are located on the same surface of the shell, and the second air inlet is located below the first air inlet.

[0008] Furthermore, there are two second air inlets, and the two second air inlets are respectively arranged on opposite sides of the shell.

[0009] Furthermore, the air outlet switching mechanism includes: a first air outlet switching mechanism, the first air outlet switching mechanism is arranged adjacent to the first air inlet, and the first air outlet switching mechanism is used to open or close the first air inlet.

[0010] Furthermore, the first air outlet switching mechanism includes: a first rotating drum shell, the first rotating drum shell is arranged in the first cavity and close to the first air inlet, and a first straight opening is opened on the side wall of the first rotating drum shell; a first rotating part, the first rotating part is arranged in the first rotating drum shell; a first sealing spring, the first sealing spring is connected to the first rotating part, and the first rotating part is operated to drive the first sealing spring to rotate a preset angle, so that the first sealing spring has a first sealing state that blocks the first air inlet, or the first sealing spring has a first opening state that opens the first air inlet.

[0011] Furthermore, when the first sealing spring is in the first sealing state, the first sealing spring extends out of the first drum shell through the first straight opening and cooperates with the side wall of the first cavity to achieve sealing. When the first sealing spring is in the first opening state, at least part of the first sealing spring retracts into the first drum shell, so that the first sealing spring is set at a distance from the side wall of the first cavity to form a ventilation channel.

[0012] Furthermore, the first air outlet switching mechanism also includes: a first driving part, the first driving part is connected to the first rotating part, the first driving part can drive the first rotating part to drive the first sealing spring to rotate relative to the first drum shell, so that the first sealing spring is in a first sealing state or a first open state.

[0013] Furthermore, the long side direction of the first air inlet is extended in the vertical direction, the first rotating part includes a first rotating drum, the axis of the first rotating drum is arranged in the vertical direction, and the first sealing spring is connected to the outer surface of the first rotating drum.

[0014] Furthermore, the air outlet switching mechanism also includes: a second air outlet switching mechanism, the second air outlet switching mechanism is arranged adjacent to the second air inlet, and the second air outlet switching mechanism is used to open or close the second air inlet.

[0015] Furthermore, the second air outlet switching mechanism includes: a second drum shell, the second drum shell is arranged in the second cavity and close to the second air inlet, and a second straight opening is opened on the side wall of the second drum shell; a second rotating part, the second rotating part is arranged in the second drum shell; a second sealing spring, the second sealing spring is connected to the second rotating part, and the second rotating part is operated to drive the second sealing spring to rotate a preset angle, so that the second sealing spring has a second sealing state that blocks the second air inlet, or the second sealing spring has a second open state that opens the second air inlet.

[0016] Furthermore, when the second sealing spring is in the second sealing state, the second sealing spring extends out of the second drum shell through the second straight-through opening and cooperates with the side wall of the second cavity to achieve sealing. When the second sealing spring is in the second open state, at least part of the second sealing spring retracts into the second drum shell, so that the second sealing spring is set at a distance from the side wall of the second cavity to form a ventilation channel.

[0017] Furthermore, the second air outlet switching mechanism also includes: a second driving part, which is connected to the second rotating part, and the second driving part can drive the second rotating part to drive the second sealing spring to rotate relative to the second drum shell, so that the second sealing spring is in a second sealing state or a second open state.

[0018] Furthermore, the long side direction of the second air inlet is extended in the vertical direction, the second rotating part includes a second rotating drum, the axis of the second rotating drum is arranged in the vertical direction, and the second sealing spring is connected to the outer surface of the second rotating drum.

[0019] Furthermore, the indoor unit has a heating mode and a cooling mode. When the indoor unit is in the heating mode, the second air inlet is in a closed state, and the first air inlet, the second air inlet and the first air inlet are all in an open state. When the indoor unit is in the cooling mode, the first air inlet is in a closed state, and the first air inlet, the second air inlet and the second air inlet are in an open state.

[0020] Furthermore, the indoor unit further includes a fan unit, which is disposed in the first cavity and located at the first air outlet, and / or the fan unit is disposed in the second cavity and located at the second air outlet.

[0021] Furthermore, the fan unit includes a plurality of axial flow fans, and the axes of the plurality of axial flow fans are arranged in parallel.

[0022] Furthermore, the first air outlet is opened at the top of the first cavity, the second air outlet is opened at the bottom of the second cavity, a rotatable first air guide plate is provided at the first air outlet, and a rotatable second air guide plate is provided at the second air outlet.

[0023] According to another aspect of the present invention, an air conditioner is provided, comprising an indoor unit, wherein the indoor unit is the indoor unit described above.

[0024] By applying the technical solution of the present invention, an auxiliary air inlet is arranged on the shell, and an air outlet switching mechanism capable of opening or closing the auxiliary air inlet is arranged. Such arrangement can effectively increase the air intake volume of the indoor unit, thereby effectively improving the air outlet efficiency of the indoor unit and improving the heat exchange performance of the indoor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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:

[0026] Figure 1 It shows a schematic structural diagram of a first embodiment of an indoor unit according to the present invention;

[0027] Figure 2 Shows Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;

[0028] Figure 3 It shows a cross-sectional structural schematic diagram of a second embodiment of an indoor unit according to the present invention;

[0029] Figure 4 A cross-sectional structural schematic diagram of a third embodiment of an indoor unit according to the present invention is shown;

[0030] Figure 5 A cross-sectional structural schematic diagram of a fourth embodiment of an indoor unit according to the present invention is shown;

[0031] Figure 6 A schematic structural diagram of an embodiment of a first tuyere switching mechanism according to the present invention is shown;

[0032] Figure 7 A schematic structural diagram of an embodiment of a second tuyere switching mechanism according to the present invention is shown;

[0033] Figure 8 A schematic structural diagram of a fifth embodiment of an indoor unit according to the present invention is shown.

[0034] The above drawings include the following reference numerals:

[0035] 10. Shell; 11. First air outlet; 12. Second air outlet;

[0036] 20. Heat exchanger;

[0037] 30. first cavity; 31. first air inlet;

[0038] 40. second cavity; 41. second air inlet;

[0039] 51. first air outlet switching mechanism; 511. first drum housing; 512. first rotating part; 513. first sealing spring; 514. first driving part;

[0040] 52, second air outlet switching mechanism; 521, second drum housing; 522, second rotating part; 523, second sealing spring; 524, second driving part;

[0041] 60. Axial flow fan;

[0042] 70. A first air guide plate;

[0043] 80. Second air guide plate;

[0044] 91. Bearing; 92. Rotating shaft. DETAILED DESCRIPTION

[0045] 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.

[0046] 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.

[0047] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0048] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0049] Combination Figures 1 to 8 As shown, according to a specific embodiment of the present invention, an indoor unit is provided.

[0050] Specifically, Figure 1 and Figure 2 As shown, the indoor unit includes a shell 10, a heat exchanger 20 and an air outlet switching mechanism. A first air outlet 11 is provided at the first end of the shell 10. A second air outlet 12 is provided at the second end of the shell 10. The heat exchanger 20 is arranged in the shell 10 to separate the shell 10 into a first cavity 30 and a second cavity 40. The first air outlet 11 is connected to the first cavity 30, and the second air outlet 12 is connected to the second cavity 40. Among them, an auxiliary air inlet is also provided on the shell 10, and the auxiliary air inlet is connected to at least one of the first cavity 30 and the second cavity 40. The air outlet switching mechanism is arranged in the shell 10, and the air outlet switching mechanism is used to open or close the auxiliary air inlet.

[0051] In this embodiment, an auxiliary air inlet is provided on the shell, and an air outlet switching mechanism capable of opening or closing the auxiliary air inlet is provided. Such a setting can effectively increase the air intake volume of the indoor unit, thereby effectively improving the air outlet efficiency of the indoor unit and improving the heat exchange performance of the indoor unit.

[0052] The auxiliary air inlet includes a first air inlet 31. The first air inlet 31 is disposed on the side wall of the first cavity 30. Figure 2 As shown at D1 in the figure, an air inlet channel is formed between the first air inlet 31 and the first cavity 30. Figure 1 As shown, there are two first air inlets 31, and the two first air inlets 31 are respectively arranged on opposite sides of the housing 10. Such an arrangement can effectively increase the air intake volume of the auxiliary air inlet.

[0053] Furthermore, the auxiliary air inlet further includes a second air inlet 41. The second air inlet 41 is disposed on the side wall of the second cavity 40, the second air inlet 41 and the first air inlet 31 are located on the same surface of the housing 10, and the second air inlet 41 is located below the first air inlet 31. Figure 2 As shown at D2, an air inlet channel is formed between the second air inlet 41 and the second cavity 40, so that the air inlet volume of the second cavity 40 can be effectively increased. Preferably, there are two second air inlets 41, which are respectively arranged on opposite sides of the housing 10.

[0054] like Figure 2 As shown, the air outlet switching mechanism includes a first air outlet switching mechanism 51. The first air outlet switching mechanism 51 is arranged adjacent to the first air inlet 31, and the first air outlet switching mechanism 51 is used to open or close the first air inlet 31. This arrangement enables, when the first air outlet 11 is an air outlet, the first air outlet switching mechanism 51 is switched to a position where the first air inlet 31 is closed to prevent airflow from being discharged from the first air inlet 31.

[0055] Specifically, Figure 6As shown, the first air outlet switching mechanism 51 includes a first drum housing 511, a first rotating portion 512 and a first sealing spring 513. The first drum housing 511 is disposed in the first cavity 30 and is disposed close to the first air inlet 31. A first straight opening (such as Figure 6 The first rotating part 512 is arranged in the first drum housing 511. The first sealing elastic piece 513 is connected to the first rotating part 512. The first rotating part 512 is operated to drive the first sealing elastic piece 513 to rotate by a preset angle, so that the first sealing elastic piece 513 has a first sealing state of blocking the first air inlet 31, or the first rotating part 512 is operated to make the first sealing elastic piece 513 have a first opening state of opening the first air inlet 31. Such a setting can improve the reliability of controlling the opening and closing of the first air inlet 31.

[0056] Among them, when the first sealing spring 513 is in the first sealing state, the first sealing spring 513 extends out of the first drum shell 511 through the first straight opening and cooperates with the side wall of the first cavity 30 to achieve sealing. When the first sealing spring 513 is in the first opening state, at least part of the first sealing spring 513 retracts into the first drum shell 511, so that the first sealing spring 513 is set at a distance from the side wall of the first cavity 30 to form a ventilation channel.

[0057] Furthermore, the first air outlet switching mechanism 51 further includes a first driving unit 514. The first driving unit 514 is connected to the first rotating unit 512, and the first driving unit 514 can drive the first rotating unit 512 to drive the first sealing elastic sheet 513 to rotate relative to the first drum housing 511, so that the first sealing elastic sheet 513 is in the first sealing state or the first opening state. This arrangement can realize the automatic operation of opening and closing the first air inlet 31, thereby improving the user experience. Preferably, the first driving unit 514 is a driving motor.

[0058] like Figures 2 to 6 As shown, the long side direction of the first air inlet 31 extends in the vertical direction, the first rotating part 512 includes a first rotating drum, the axis of the first rotating drum is arranged in the vertical direction, and the first sealing elastic sheet 513 is connected to the outer surface of the first rotating drum. This arrangement can effectively increase the air intake area of ​​the first air inlet 31. The arrangement of the first rotating drum makes the structure of the first air outlet switching mechanism 51 simpler, more reliable, and easier to process.

[0059] Furthermore, the air outlet switching mechanism also includes a second air outlet switching mechanism 52. The second air outlet switching mechanism 52 is arranged adjacent to the second air inlet 41, and the second air outlet switching mechanism 52 is used to open or close the second air inlet 41. That is, in this embodiment, the structure of the second air outlet switching mechanism 52 can be arranged in the same manner as the structure of the first air outlet switching mechanism 51. Specifically, the second air outlet switching mechanism 52 includes a second rotating drum shell 521, a second rotating portion 522, and a second sealing spring 523. The second rotating drum shell 521 is arranged in the second cavity 40 and is arranged close to the second air inlet 41. A second straight-through port (such as Figure 7 The second rotating part 522 is disposed in the second drum housing 521. The second sealing elastic piece 523 is connected to the second rotating part 522. The second rotating part 522 is operated to drive the second sealing elastic piece 523 to rotate by a preset angle, so that the second sealing elastic piece 523 has a second sealing state of blocking the second air inlet 41, or the second sealing elastic piece 523 has a second opening state of opening the second air inlet 41.

[0060] The second air outlet switching mechanism 52 also includes a second driving part 524. The second driving part 524 is connected to the second rotating part 522, and the second driving part 524 can drive the second rotating part 522 to drive the second sealing elastic piece 523 to rotate relative to the second drum housing 521, so that the second sealing elastic piece 523 is in a second sealing state or a second open state. When the second sealing elastic piece 523 is in the second sealing state, the second sealing elastic piece 523 extends out of the second drum housing 521 through the second straight-through port and cooperates with the side wall of the second cavity 40 to achieve sealing. When the second sealing elastic piece 523 is in the second open state, at least part of the second sealing elastic piece 523 retracts into the second drum housing 521, so that the second sealing elastic piece 523 is arranged at a distance from the side wall of the second cavity 40 to form a ventilation channel. Such an arrangement can realize the automatic operation of opening and closing the second air inlet 41, thereby improving the user experience. Preferably, the second driving part 524 is a driving motor.

[0061] The second air inlet 41 is arranged with its long side extending in the vertical direction, the second rotating part 522 includes a second rotating drum, the axis of the second rotating drum is arranged in the vertical direction, and the second sealing elastic sheet 523 is connected to the outer surface of the second rotating drum. The arrangement of the second rotating drum makes the structure of the second air outlet switching mechanism 52 simpler, more reliable, and easier to process.

[0062] Furthermore, the indoor unit has a heating mode and a cooling mode. When the indoor unit is in the heating mode, the second air inlet 41 is in a closed state, and the first air inlet 11, the second air inlet 12 and the first air inlet 31 are all in an open state. At this time, the first air inlet 31 and the first air inlet 11 are used for air intake, and the second air inlet 12 is used for air discharge. When the indoor unit is in the cooling mode, the first air inlet 31 is in a closed state, and the first air inlet 11, the second air inlet 12 and the second air inlet 41 are in an open state. At this time, the first air inlet 11 is used for air discharge, and the second air inlet 12 and the second air inlet 41 are used for air intake.

[0063] In the present application, the indoor unit further includes a fan unit, which is arranged in the first cavity 30 and located at the first air outlet 11, and the fan unit is arranged in the second cavity 40 and located at the second air outlet 12. Such an arrangement can improve the air outlet efficiency of the indoor unit.

[0064] like Figure 8 As shown, the fan unit includes a plurality of axial flow fans 60, and the axes of the plurality of axial flow fans 60 are arranged in parallel. Such an arrangement can further improve the air intake efficiency and air outlet efficiency of the indoor unit.

[0065] Preferably, the first air outlet 11 is opened at the top of the first cavity 30. The second air outlet 12 is opened at the bottom of the second cavity 40, and a rotatable first air guide plate 70 is provided at the first air outlet 11. A rotatable second air guide plate 80 is provided at the second air outlet 12. This arrangement enables the indoor unit to achieve shower-style air supply when in cooling mode, and to achieve floor-style air supply mode when in heating mode, effectively improving the user experience.

[0066] The indoor unit in the above embodiment can also be used in the technical field of air conditioning equipment, that is, according to another aspect of the present invention, an air conditioner is provided. The air conditioner includes an indoor unit, and the indoor unit is the indoor unit in the above embodiment.

[0067] Specifically, the indoor unit of this embodiment can increase the air intake volume of the air conditioner and thus improve the performance of the air conditioner because the auxiliary air inlet is arranged on the side wall of the housing, that is, an air inlet is added from the side.

[0068] The air conditioner includes a shell part, a first air guide plate, a second air guide plate, an axial flow fan unit, and an evaporator. The shell part serves as the skeleton of the air conditioner. An auxiliary air inlet is provided on the rear side of the shell to increase the air intake and improve the heat exchange efficiency. The air guide plate is used to guide the air. The axial flow fan unit is arranged at the upper and lower air outlets to play a role in blowing air. The motor drives the drum to rotate. An elastic sheet, i.e., a sealing spring sheet, is wound around the drum. The motor drives the drum to rotate to extend or retract the sheet. When the sheet is extended, it can block the air intake of the upper and lower air inlet channels.

[0069] like Figure 5 and Figure 6 As shown, there is a rotating shaft 92 on one side of the drum, and the rotating shaft 92 is connected to the drum shell through a bearing 91; the sheet is pre-wound on the drum, and the sheet is elastic. The motor drives the drum to rotate and the sheet is extended or retracted from the sheet extension port. When the sheet is retracted, a small section remains outside the sheet extension port, which facilitates the sheet to be extended when the motor drives the drum to rotate.

[0070] When the air conditioner is turned off, Figure 5 As shown, the upper and lower air guide plates are closed, the first driving unit drives the first rotating drum to rotate to extend a thin sheet to cover the upper air inlet channel, and the second driving unit drives the second rotating drum to rotate to extend a thin sheet to cover the lower air inlet channel, which can prevent dust from entering the interior of the air conditioner and keep the interior of the air conditioner clean.

[0071] When the air conditioner is cooling, Figure 4 The upper and lower air guide plates are opened, the air flows in from the lower air port, and is blown out from the upper air port after heat exchange in the evaporator. At the same time, the first driving unit drives the first rotating drum to rotate and extend the thin sheet to cover the upper air inlet channel, and the second driving unit drives the second rotating drum to retract the thin sheet, and the air flows into the lower air inlet channel, thereby increasing the air intake volume, improving the heat exchange efficiency, achieving rapid cooling, realizing the "shower-style air supply" of cooling, and improving the cooling comfort.

[0072] When the air conditioner is heating, Figure 3 The upper and lower air guide plates are opened, the air flows in from the upper air port, and is blown out from the lower air port after heat exchange in the evaporator. At the same time, the second driving unit drives the second drum to rotate and extend the thin sheet to cover the lower air inlet channel, and the first driving unit drives the first drum to retract the thin sheet, and the upper air inlet channel enters the air, increasing the air intake volume, improving the heat exchange efficiency, achieving rapid heating, realizing the "floor heating air supply" of heating, and improving the heating comfort.

[0073] 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.

[0074] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present invention.

[0075] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0076] 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 indoor unit, characterized in that: include: A shell (10), wherein a first end of the shell (10) is provided with a first air outlet (11), and a second end of the shell (10) is provided with a second air outlet (12); a heat exchanger (20), the heat exchanger (20) being arranged in the shell (10) to separate the shell (10) into a first cavity (30) and a second cavity (40), the first air port (11) being connected to the first cavity (30), and the second air port (12) being connected to the second cavity (40); The shell (10) is also provided with an auxiliary air inlet, and the auxiliary air inlet is connected to at least one of the first cavity (30) and the second cavity (40); An air outlet switching mechanism, the air outlet switching mechanism being arranged in the housing (10), the air outlet switching mechanism being used to open or close the auxiliary air inlet; The auxiliary air inlet comprises a first air inlet (31), wherein the first air inlet (31) is arranged on a side wall of the first cavity (30); The air outlet switching mechanism comprises: a first air outlet switching mechanism (51), the first air outlet switching mechanism (51) being arranged adjacent to the first air inlet (31), the first air outlet switching mechanism (51) being used to open or close the first air inlet (31), the first air outlet switching mechanism (51) comprising: a first rotating drum shell (511), the first rotating drum shell (511) being arranged in the first cavity (30) and close to the first air inlet (31), a first straight opening being provided on a side wall of the first rotating drum shell (511); a first rotating portion (512), the first rotating part (512) is arranged in the first drum housing (511); a first sealing elastic piece (513), the first sealing elastic piece (513) is connected to the first rotating part (512), and the first rotating part (512) is operated to drive the first sealing elastic piece (513) to rotate a preset angle, so that the first sealing elastic piece (513) has a first sealing state of blocking the first air inlet (31), or the first sealing elastic piece (513) has a first opening state of opening the first air inlet (31); The long side direction of the first air inlet (31) is extended in the vertical direction, the first rotating part (512) includes a first rotating drum, the axis of the first rotating drum is arranged in the vertical direction, the first sealing spring (513) is connected to the outer surface of the first rotating drum, wherein a rotating shaft (92) is provided on one side of the first rotating drum, and the rotating shaft (92) is connected to the first rotating drum housing (511) via a bearing (91).

2. The indoor unit according to claim 1, characterized in that: There are two first air inlets (31), and the two first air inlets (31) are respectively arranged on opposite sides of the housing (10).

3. The indoor unit according to claim 1, characterized in that: The auxiliary air inlet further comprises a second air inlet (41), the second air inlet (41) being arranged on a side wall of the second cavity (40), the second air inlet (41) and the first air inlet (31) being located on the same surface of the shell (10), and the second air inlet (41) being located below the first air inlet (31).

4. The indoor unit according to claim 3, characterized in that: There are two second air inlets (41), and the two second air inlets (41) are respectively arranged on opposite sides of the housing (10).

5. The indoor unit according to claim 1, characterized in that: When the first sealing spring (513) is in the first sealing state, the first sealing spring (513) extends out of the first drum housing (511) through the first straight opening to cooperate with the side wall of the first cavity (30) to achieve sealing; when the first sealing spring (513) is in the first opening state, at least a portion of the first sealing spring (513) is retracted into the first drum housing (511), so that the first sealing spring (513) is arranged at a distance from the side wall of the first cavity (30) to form a ventilation channel.

6. The indoor unit according to claim 1, characterized in that: The first tuyere switching mechanism (51) further comprises: A first driving part (514), wherein the first driving part (514) is connected to the first rotating part (512), and the first driving part (514) can drive the first rotating part (512) to drive the first sealing spring (513) to rotate relative to the first rotating drum housing (511), so that the first sealing spring (513) is in the first sealing state or the first opening state.

7. The indoor unit according to claim 3, characterized in that: The tuyere switching mechanism further comprises: A second air outlet switching mechanism (52), the second air outlet switching mechanism (52) being arranged adjacent to the second air inlet (41), the second air outlet switching mechanism (52) being used to open or close the second air inlet (41).

8. The indoor unit according to claim 7, characterized in that: The second tuyere switching mechanism (52) comprises: a second rotary drum shell (521), the second rotary drum shell (521) being arranged in the second cavity (40) and close to the second air inlet (41), and a second straight opening being provided on a side wall of the second rotary drum shell (521); a second rotating part (522), the second rotating part (522) being arranged in the second rotating drum housing (521); A second sealing spring (523), wherein the second sealing spring (523) is connected to the second rotating portion (522), and the second rotating portion (522) is operated to drive the second sealing spring (523) to rotate by a preset angle, so that the second sealing spring (523) has a second sealing state for blocking the second air inlet (41), or the second sealing spring (523) has a second opening state for opening the second air inlet (41).

9. The indoor unit according to claim 8, characterized in that: When the second sealing spring (523) is in the second sealing state, the second sealing spring (523) extends out of the second drum housing (521) through the second straight opening to cooperate with the side wall of the second cavity (40) to achieve sealing; when the second sealing spring (523) is in the second opening state, at least a portion of the second sealing spring (523) is retracted into the second drum housing (521), so that the second sealing spring (523) is arranged at a distance from the side wall of the second cavity (40) to form a ventilation channel.

10. The indoor unit according to claim 9, characterized in that: The second tuyere switching mechanism (52) further comprises: A second driving part (524), wherein the second driving part (524) is connected to the second rotating part (522), and the second driving part (524) can drive the second rotating part (522) to drive the second sealing spring (523) to rotate relative to the second rotating drum housing (521), so that the second sealing spring (523) is in the second sealing state or the second opening state.

11. The indoor unit according to claim 8, characterized in that: The long side direction of the second air inlet (41) is extended in the vertical direction, the second rotating part (522) comprises a second rotating drum, the axis of the second rotating drum is arranged in the vertical direction, and the second sealing spring (523) is connected to the outer surface of the second rotating drum.

12. The indoor unit according to claim 3, characterized in that: The indoor unit has a heating mode and a cooling mode. When the indoor unit is in the heating mode, the second air inlet (41) is in a closed state, and the first air inlet (11), the second air inlet (12) and the first air inlet (31) are all in an open state. When the indoor unit is in the cooling mode, the first air inlet (31) is in a closed state, and the first air inlet (11), the second air inlet (12) and the second air inlet (41) are in an open state.

13. The indoor unit according to claim 3, characterized in that: The indoor unit further comprises a fan unit, wherein the fan unit is arranged in the first cavity (30) and located at the first air outlet (11), and / or the fan unit is arranged in the second cavity (40) and located at the second air outlet (12).

14. The indoor unit according to claim 13, characterized in that: The fan unit comprises a plurality of axial flow fans (60), and the axes of the plurality of axial flow fans (60) are arranged in parallel.

15. The indoor unit according to claim 3, characterized in that: The first air outlet (11) is opened at the top of the first cavity (30), and the second air outlet (12) is opened at the bottom of the second cavity (40). A rotatable first air guide plate (70) is provided at the first air outlet (11), and a rotatable second air guide plate (80) is provided at the second air outlet (12).

16. An air conditioner, comprising an indoor unit, characterized in that: The indoor unit is the indoor unit according to any one of claims 1 to 15.

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