Indoor unit for air conditioner, Air conditioner

Abstract

This application relates to the field of air conditioning technology, and discloses an indoor unit and an air conditioner. The indoor unit includes: a casing defining an air outlet duct, and having an air inlet, a first air outlet, and a second air outlet, all of which are connected to the air outlet duct; a fan disposed within the casing; a first indoor heat exchanger disposed within the air outlet duct and corresponding to the first air outlet; and a second indoor heat exchanger disposed within the air outlet duct and corresponding to the second air outlet. The first and second air outlets can be selectively opened or both can be opened. This allows for flexible selection of either the first or second air outlet to be opened, or both to be opened, based on the operating status of the first and second indoor heat exchangers. This enables flexible selection of airflow direction and volume according to different usage needs, avoiding the problem of a single air outlet directly blowing on the human body, meeting the needs of different usage scenarios, and improving the flexibility and comfort of use.

Description

Technical Field

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

[0002] Air conditioners, as a common indoor environmental control device, are widely used in homes, offices, and commercial spaces. However, traditional air conditioners have a significant problem during use: the airflow tends to blow directly onto people, causing discomfort.

[0003] Current air conditioners typically have a limited airflow pattern with fixed vent designs, making it impossible to flexibly adjust the airflow direction according to the user's actual needs. Although some air conditioners are equipped with adjustable air deflectors, the adjustment range is limited and cannot fundamentally solve the problem of direct airflow.

[0004] To address the issue of direct airflow from air conditioners, several improvements have been attempted in related technologies. For example, some air conditioners disperse airflow by increasing the adjustment angle of the air deflector, but this still cannot completely eliminate the direct airflow phenomenon. Furthermore, these improvements often require complex mechanical structures, increasing the cost and maintenance difficulty of the air conditioner.

[0005] Therefore, there is an urgent need in the existing technology for an air conditioner indoor unit that can effectively prevent the air conditioner from blowing directly on the human body while meeting the needs of different usage scenarios.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides an indoor unit and an air conditioner for use in air conditioning, in order to solve the problem of direct airflow from the air conditioner.

[0009] According to a first aspect of the present invention, an indoor unit for an air conditioner is provided, comprising: a housing defining an air duct and having an air inlet, a first air outlet, and a second air outlet, wherein the air inlet, the first air outlet, and the second air outlet are all connected to the air duct; a fan disposed within the housing; a first indoor heat exchanger disposed within the air duct and corresponding to the first air outlet; and a second indoor heat exchanger disposed within the air duct and corresponding to the second air outlet; wherein the first air outlet and the second air outlet can be selectively opened or both can be opened.

[0010] Optionally, the first air outlet and the second air outlet are arranged opposite to each other so that the airflow flowing out of the first air outlet can mix with the airflow flowing out of the second air outlet.

[0011] Optionally, the indoor unit further includes: a first air guide plate, movably disposed at the first air outlet, for opening or closing the first air outlet; and a second air guide plate, movably disposed at the second air outlet, for opening or closing the second air outlet; wherein the opening direction of the first air guide plate is opposite to the opening direction of the second air outlet, so that the airflow flowing out of the first air outlet and the airflow flowing out of the second air outlet can be mixed.

[0012] Optionally, the indoor unit also includes a controller connected to both the first and second air guide vanes, which controls both the first and second air guide vanes to open when the air conditioner is running in natural wind mode.

[0013] Optionally, the fan, the first indoor heat exchanger, and the second indoor heat exchanger are arranged in sequence, and both the first indoor heat exchanger and the second indoor heat exchanger extend circumferentially along the fan.

[0014] Optionally, the dimensions of the first indoor heat exchanger and the second indoor heat exchanger are different.

[0015] Optionally, the second indoor heat exchanger is arranged in the vertical direction.

[0016] Optionally, the indoor unit also includes a controller connected to the refrigerant system of the air conditioner, which controls the first indoor heat exchanger to cool and the second indoor heat exchanger to heat when the air conditioner is in humidification mode, and closes the first air outlet and opens the second air outlet.

[0017] Optionally, the indoor unit also includes a controller connected to the refrigerant system of the air conditioner, which controls the first indoor heat exchanger to heat and the second indoor heat exchanger to cool when the air conditioner is in dehumidification mode, and closes the first air outlet and opens the second air outlet.

[0018] According to a second aspect of the present invention, an air conditioner is provided, comprising: an indoor unit for an air conditioner as described in any of the above embodiments; a refrigerant system including a compressor, a reversing valve, and a throttling element connected by a refrigerant pipeline, wherein a first indoor heat exchanger and a second indoor heat exchanger are disposed in the refrigerant pipeline.

[0019] The indoor unit and air conditioner for air conditioning provided in this disclosure can achieve the following technical effects:

[0020] By setting up a first air outlet and a second air outlet, with the first outlet corresponding to the first indoor heat exchanger and the second outlet corresponding to the second indoor heat exchanger, one or both air outlets can be flexibly selected to be open, or both can be opened, depending on the operating status of the first and second indoor heat exchangers. This allows for flexible selection of airflow direction and volume according to different usage needs, avoiding the problem of a single outlet blowing directly on the human body, meeting the needs of different usage scenarios, and improving the flexibility and comfort of use. Moreover, by rationally arranging the first and second indoor heat exchangers, the airflow temperature can be better regulated, further reducing the discomfort caused by direct airflow.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a schematic diagram of the structure of an indoor unit provided in an embodiment of this disclosure, wherein the first air outlet is closed and the second air outlet is open;

[0024] Figure 2 This is a schematic diagram of another indoor unit provided in an embodiment of this disclosure, wherein the first air outlet is open and the second air outlet is closed;

[0025] Figure 3 This is a schematic diagram of another indoor unit provided in an embodiment of this disclosure, wherein both the first air outlet and the second air outlet are open;

[0026] Figure 4 This is a partial schematic diagram of an indoor unit provided in an embodiment of this disclosure.

[0027] Figure label:

[0028] 10: Housing; 101: First air outlet; 102: Second air outlet;

[0029] 20: First indoor heat exchanger;

[0030] 30: Second indoor heat exchanger;

[0031] 40: First air guide plate;

[0032] 50: Second air guide plate;

[0033] 60: Fan. Detailed Implementation

[0034] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0035] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0036] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0037] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0038] Unless otherwise stated, the term "multiple" means two or more.

[0039] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0040] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0042] Combination Figure 1-4 As shown, this disclosure provides an indoor unit for an air conditioner, including a housing 10, a fan 60, a first indoor heat exchanger 20, and a second indoor heat exchanger 30.

[0043] The outer casing 10 defines the air outlet duct and is provided with an air inlet, a first air outlet 101 and a second air outlet 102. The air inlet, the first air outlet 101 and the second air outlet 102 are all connected to the air outlet duct.

[0044] Under the action of the fan, air enters the air duct through the air inlet, exchanges heat with the first indoor heat exchanger and / or the second indoor heat exchanger, and is then blown out from the first air outlet and / or the second air outlet.

[0045] The fan 60 is located inside the outer casing 10; the first indoor heat exchanger 20 is located inside the air duct and corresponds to the first air outlet 101; the second indoor heat exchanger 30 is located inside the air duct and corresponds to the second air outlet 102.

[0046] The first air outlet 101 and the second air outlet 102 can be opened selectively or both can be opened.

[0047] like Figure 1 In the middle, the first air outlet is closed, and the second air outlet is open; for example... Figure 2 In the middle, the first air outlet is open, and the second air outlet is closed; for example... Figure 3 In the middle, both the first and second air outlets are open.

[0048] By setting a first air outlet 101 and a second air outlet 102, with the first air outlet 101 corresponding to the first indoor heat exchanger 20 and the second air outlet 102 corresponding to the second indoor heat exchanger 30, one or both air outlets can be flexibly selected to be open or both can be opened according to the operating status of the first indoor heat exchanger 20 and the second indoor heat exchanger 30. This allows for flexible selection of airflow direction and volume according to different usage needs, avoiding the problem of a single air outlet blowing directly on the human body, meeting the needs of different usage scenarios, and improving the flexibility and comfort of use. Moreover, by rationally arranging the first indoor heat exchanger 20 and the second indoor heat exchanger 30, the airflow temperature can be better regulated, further reducing the discomfort caused by direct airflow to the human body.

[0049] Optionally, such as Figure 4As shown, the first air outlet 101 and the second air outlet 102 are arranged opposite to each other so that the airflow flowing out of the first air outlet 101 and the airflow flowing out of the second air outlet 102 can be mixed.

[0050] By arranging the first air outlet 101 and the second air outlet 102 opposite to each other, the airflow from the first air outlet 101 and the airflow from the second air outlet 102 can mix to create an effect similar to natural wind. This mixed airflow can effectively reduce sudden changes in wind speed and temperature unevenness, avoiding the strong discomfort caused by direct airflow from traditional air conditioners, while providing a gentler and more uniform airflow, thus improving the user's comfort experience. Moreover, the mixed airflow has characteristics closer to natural wind, reducing the "harsh wind" feeling of traditional air conditioner vents, making the airflow felt by the user more natural and comfortable, as if they were in a natural environment, thereby significantly improving the comfort level during air conditioner use.

[0051] The relative arrangement of the first air outlet 101 and the second air outlet 102 can increase the area of ​​the corresponding parts of the first air outlet 101 and the second air outlet 102, so that the airflow flowing out of the first air outlet 101 can mix more with the airflow flowing out of the second air outlet 102.

[0052] Optionally, such as Figure 4 As shown, the indoor unit also includes a first air guide plate 40 and a second air guide plate 50.

[0053] The first air guide plate 40 is movably disposed at the first air outlet 101 and is used to open or close the first air outlet 101; the second air guide plate 50 is movably disposed at the second air outlet 102 and is used to open or close the second air outlet 102.

[0054] The opening direction of the first air guide plate 40 is opposite to the opening direction of the second air outlet 102, so that the airflow flowing out of the first air outlet 101 and the airflow flowing out of the second air outlet 102 can be mixed.

[0055] The first air guide plate 40 and the second air guide plate 50 open in opposite directions, causing the airflow from the first air outlet 101 to flow in opposite directions to the airflow from the second air outlet 102. This allows the two airflows to collide, resulting in more thorough mixing and improving the effectiveness of the natural wind. Figure 4 In the diagram, the arrow indicates the direction of airflow from the second air outlet, and the dashed arrow indicates the direction of airflow from the first air outlet.

[0056] For example, the first air outlet 101 includes a first sidewall and a second sidewall, and the second air outlet 102 includes a third sidewall and a fourth sidewall, which are arranged sequentially. The first air guide plate 40 is rotatably connected to the outer casing 10 via a rotating shaft and rotates between the closed position of the first air outlet 101 and the open position of the first air outlet 101. The first rotating shaft is located on the first sidewall. The second air guide plate 50 is rotatably connected to the outer casing 10 via two rotating shafts and rotates between the closed position of the second air outlet 102 and the open position of the second air outlet 102. The second rotating shaft is located on the fourth sidewall, thereby achieving opposite opening directions for the first air guide plate 40 and the second air guide plate 50.

[0057] For example, when the first air outlet 101 and the second air outlet 102 are opened, the extension direction of the first air guide plate 40 is opposite to that of the second air guide plate 50, thereby achieving that the opening directions of the first air guide plate 40 and the second air guide plate 50 are opposite.

[0058] Optionally, such as Figure 3 As shown, the indoor unit also includes a controller, which is connected to both the first air guide plate 40 and the second air guide plate 50. When the air conditioner is running in natural wind mode, the controller opens both the first air guide plate 40 and the second air guide plate 50.

[0059] In natural wind mode, the controller automatically opens both the first air guide plate 40 and the second air guide plate 50, causing both the first air outlet 101 and the second air outlet 102 to open. This allows the airflow from the first air outlet 101 and the second air outlet 102 to mix thoroughly, creating an effect similar to natural wind. This design not only avoids the problem of direct airflow onto the human body but also provides a softer and more even airflow, further enhancing the user's comfort experience.

[0060] Optionally, such as Figures 1 to 3 As shown, the fan 60, the first indoor heat exchanger 20, and the second indoor heat exchanger 30 are arranged in sequence, and both the first indoor heat exchanger 20 and the second indoor heat exchanger 30 extend along the circumference of the fan 60.

[0061] Both the first indoor heat exchanger 20 and the second indoor heat exchanger 30 extend circumferentially along the fan 60. This layout can significantly increase the size and heat exchange area of ​​the first indoor heat exchanger 20 and the second indoor heat exchanger 30, thereby enabling faster adjustment of indoor air temperature and improving the cooling and heating performance of the air conditioner.

[0062] The fan 60, the first indoor heat exchanger 20, and the second indoor heat exchanger 30 are arranged sequentially to form a highly efficient airflow channel. Under the action of the fan 60, the airflow passes through the first indoor heat exchanger 20 and the second indoor heat exchanger 30, meaning that only one fan 60 is needed for the entire indoor unit to drive the airflow to both indoor heat exchangers (first indoor heat exchanger 20 and second indoor heat exchanger 30). This design not only simplifies the internal structure of the air conditioner and reduces manufacturing costs, but also reduces noise and energy consumption issues caused by the operation of multiple fans 60, improving the overall performance and user experience of the air conditioner. Furthermore, the sequential arrangement of the fan 60, the first indoor heat exchanger 20, and the second indoor heat exchanger 30 makes the entire indoor unit more compact, saving internal space.

[0063] Optionally, such as Figures 1 to 3 As shown, the dimensions of the first indoor heat exchanger 20 and the second indoor heat exchanger 30 are different, which results in different heat exchange capacities of the first indoor heat exchanger 20 and the second indoor heat exchanger 30 under the same conditions.

[0064] The first indoor heat exchanger 20 and the second indoor heat exchanger 30 are of different sizes, allowing them to perform primary or auxiliary heat exchange tasks according to different usage needs and operating conditions, thereby improving the adaptability and energy-saving effect of the air conditioner. Furthermore, the differentiated design of the first indoor heat exchanger 20 and the second indoor heat exchanger 30 allows for better matching of different operating modes. For example, under partial load, the smaller of the two indoor heat exchangers can operate independently, reducing energy consumption.

[0065] like Figure 1 As shown, the second indoor heat exchanger 30 is fitted outside the first indoor heat exchanger 20, making the size of the second indoor heat exchanger 30 larger than that of the first indoor heat exchanger 20. Under the same conditions, the heat exchange capacity of the first indoor heat exchanger 20 is greater than that of the second indoor heat exchanger 30. Thus, when the air conditioner is operating in inefficient cooling or heating mode, such as... Figure 2 As shown, the second air outlet 102 is closed, the second indoor heat exchanger 30 is closed, the first indoor heat exchanger 20 is working, and the first air outlet 101 is open. At this time, only the first indoor heat exchanger 20 is working. This state is activated when the temperature difference is not high. During medium-efficiency cooling and heating operation of the air conditioner, such as... Figure 1 As shown, the second air outlet 102 is open, the second indoor heat exchanger 30 is working, the first indoor heat exchanger 20 is closed, and the first air outlet 101 is closed. Because the second indoor heat exchanger 30 is larger, its cooling and heating effect is better than that of the first indoor heat exchanger 20. At this time, the machine is in medium-efficiency cooling and heating mode. When the air conditioner is operating in high-efficiency cooling and heating mode, such as... Figure 3As shown, both the first air outlet 101 and the second air outlet 102 are open, and both the first indoor heat exchanger 20 and the second indoor heat exchanger 30 are working, and at this time they are in a high-efficiency cooling and heating state.

[0066] Optionally, such as Figures 1 to 3 As shown, the second indoor heat exchanger 30 is arranged in the vertical direction, as shown in the figure. Figures 1 to 3 The direction perpendicular to the paper or screen.

[0067] When the air conditioner is running in humidification mode, such as Figure 1 As shown, the first indoor heat exchanger 20 cools, the second indoor heat exchanger 30 heats, the first air outlet 101 is closed, and the second air outlet 102 is open. If the second indoor heat exchanger 30 is placed at an angle, the first indoor heat exchanger 20 evaporates water vapor from the air, which condenses into water upon encountering the second indoor heat exchanger 30. Because the second indoor heat exchanger 30 is placed at an angle, the water droplets will not drip down the second indoor heat exchanger 30 at an angle, but will drip naturally due to their own gravity and be blown outside by the fan 60. Users will experience water blowing, affecting the user experience. Therefore, in this application, the second indoor heat exchanger 30 is set vertically. The water condensed on the second indoor heat exchanger 30 will adhere to the heat exchange fins on the second indoor heat exchanger 30 and flow downwards. Under the adsorption effect of the heat exchange fins of the second indoor heat exchanger 30, and after being blown outside by the fan 60, it is not easily blown outside.

[0068] Taking an embedded air conditioner as an example, the first indoor heat exchanger 20 and the second indoor heat exchanger 30 are both located on the top wall of the outer casing 10. The second indoor heat exchanger 30 is set perpendicular to the top wall of the outer casing 10, that is, the surface formed by the length and width of the second indoor heat exchanger 30 is located in a vertical plane.

[0069] Optionally, the first indoor heat exchanger 20 is arranged in the vertical direction so that the first indoor heat exchanger 20 corresponds to the second indoor heat exchanger 30, thereby enhancing the synergistic effect of the two.

[0070] The indoor unit also includes a controller, which is connected to the air conditioner's refrigerant system. When the air conditioner is in humidification mode, such as... Figure 1 As shown, the first indoor heat exchanger 20 is controlled to cool, the second indoor heat exchanger 30 is controlled to heat, the first air outlet 101 is closed, and the second air outlet 102 is opened.

[0071] When the air conditioner is in humidification mode, the first indoor heat exchanger 20 is in cooling mode and the second indoor heat exchanger 30 is in heating mode. The first air outlet 101 is closed and the second air outlet 102 is open. Due to the property of air turning into water molecules when it gets cold, water condenses on the first indoor heat exchanger 20. The fan 60 blows the water from the first indoor heat exchanger 20 onto the second indoor heat exchanger 30, where it is heated and turns into water vapor, which is then blown into the room to increase humidity. Once the humidity reaches the set value, the first indoor heat exchanger 20 is turned off or the first indoor heat exchanger 20 switches to heating mode.

[0072] The indoor unit also includes a controller, such as Figure 1 As shown, the controller is connected to the refrigerant system of the air conditioner. When the air conditioner is in dehumidification mode, it controls the first indoor heat exchanger 20 to heat, the second indoor heat exchanger 30 to cool, the first air outlet 101 to close, and the second air outlet 102 to open.

[0073] When the air conditioner is in dehumidification mode, the first indoor heat exchanger 20 is in heating mode, and the second indoor heat exchanger 30 is in cooling mode. The first air outlet 101 is closed, and the second air outlet 102 is open. Due to the evaporation characteristic of air when heated, the fan 60 blows the humid indoor air onto the evaporator of the first indoor heat exchanger 20 for evaporation and drying, and then blows it out through the second indoor heat exchanger 30, thus drying the indoor air. Once the humidity reaches the set value, the first indoor heat exchanger 20 is turned off or switches to cooling mode.

[0074] Fan 60, first air outlet 101, and second air outlet 102 are arranged sequentially. For example... Figure 1 As shown, the first air outlet 101 is located inside the second air outlet 102, wherein the direction closer to the axis of the fan 60 is called the inside, and the direction farther away from the axis of the fan 60 is called the outside.

[0075] The number of first air outlet 101 and second air outlet 102 can be one or more. For example Figure 1 As shown, there are multiple first air outlets 101 and multiple second air outlets 102, which correspond one-to-one. The first air outlets 101 and the second air outlets 102 extend along the length of the first indoor heat exchanger 20 and the second indoor heat exchanger 30, respectively. Multiple first air outlets 101 are arranged sequentially along the circumference (i.e., the length direction) of the first indoor heat exchanger 20, and multiple second air outlets 102 are arranged sequentially along the circumference (i.e., the length direction) of the second indoor heat exchanger 30.

[0076] The first air outlet is located between the first indoor heat exchanger and the second indoor heat exchanger, and the second air outlet is located on the side of the second indoor heat exchanger away from the first indoor heat exchanger.

[0077] A second aspect of this utility model provides an air conditioner, including an indoor unit and a refrigerant system as described in any one of the embodiments. The refrigerant system includes a compressor, a reversing valve, and a throttling element connected by refrigerant piping. A first indoor heat exchanger 20 and a second indoor heat exchanger 30 are disposed on the refrigerant piping, together forming the air conditioner refrigerant flow path. The reversing valve can be a four-way valve.

[0078] The air conditioner provided in the second aspect of this utility model includes an indoor unit for air conditioning as described in any of the above embodiments, and therefore has all the beneficial effects of an indoor unit for air conditioning as described in any of the above embodiments, which will not be repeated here.

[0079] An air conditioner includes an outdoor unit, which can be one or two. When there is one outdoor unit, the first indoor heat exchanger 20 and the second indoor heat exchanger 30 are located in the same refrigerant flow path. When there are two outdoor units, one outdoor unit is connected to the first indoor heat exchanger 20 to form a refrigerant flow path, and the other outdoor unit is connected to the first indoor heat exchanger 20 to form a refrigerant flow path.

[0080] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The outer casing defines the air duct and is provided with an air inlet, a first air outlet, and a second air outlet, all of which are connected to the air duct. The fan is located inside the casing; The first indoor heat exchanger is located inside the air duct and corresponds to the first air outlet; The second indoor heat exchanger is located inside the air duct and corresponds to the second air outlet; The first air outlet and the second air outlet can be either opened or both can be opened.

2. The indoor unit for an air conditioner according to claim 1, characterized in that, The first air outlet and the second air outlet are arranged opposite each other so that the airflow from the first air outlet can mix with the airflow from the second air outlet.

3. The indoor unit for an air conditioner according to claim 2, characterized in that, Also includes: The first air guide plate is movably located at the first air outlet and is used to open or close the first air outlet. The second air guide plate is movably installed at the second air outlet and is used to open or close the second air outlet. The opening direction of the first air guide plate is opposite to that of the second air outlet, so that the airflow from the first air outlet and the airflow from the second air outlet can be mixed.

4. The indoor unit for an air conditioner according to claim 3, characterized in that, Also includes: The controller is connected to both the first and second air guide vanes. When the air conditioner is running in natural wind mode, it controls both the first and second air guide vanes to open.

5. The indoor unit for an air conditioner according to any one of claims 1 to 4, characterized in that, The fan, the first indoor heat exchanger, and the second indoor heat exchanger are arranged in sequence, and both the first indoor heat exchanger and the second indoor heat exchanger extend circumferentially along the fan.

6. The indoor unit for an air conditioner according to any one of claims 1 to 4, characterized in that, The dimensions of the first indoor heat exchanger and the second indoor heat exchanger are different.

7. The indoor unit for an air conditioner according to any one of claims 1 to 4, characterized in that, The second indoor heat exchanger is installed vertically.

8. The indoor unit for an air conditioner according to any one of claims 1 to 4, characterized in that, Also includes: The controller is connected to the refrigerant system of the air conditioner. When the air conditioner is in humidification mode, it controls the first indoor heat exchanger to cool and the second indoor heat exchanger to heat, closes the first air outlet and opens the second air outlet.

9. The indoor unit for an air conditioner according to any one of claims 1 to 4, characterized in that, Also includes: The controller is connected to the refrigerant system of the air conditioner. When the air conditioner is in dehumidification mode, it controls the first indoor heat exchanger to heat, the second indoor heat exchanger to cool, the first air outlet to close, and the second air outlet to open.

10. An air conditioner, characterized in that, include: An indoor unit for an air conditioner as described in any one of claims 1 to 9; The refrigerant system includes a compressor, a reversing valve, and a throttling element connected by refrigerant piping. A first indoor heat exchanger and a second indoor heat exchanger are located on the refrigerant piping.

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