Indoor unit, control method thereof, air conditioner and storage medium

Abstract

The application discloses an indoor unit, comprising a shell, an air inlet and an air outlet are arranged on the shell; a volute is arranged in the shell, and a heat exchange air duct is formed in the volute and is communicated with the air inlet and the air outlet; a humidifying device is arranged on the volute, and at least two humidifying areas capable of being communicated with the heat exchange air duct are arranged on the humidifying device; and at least one adjusting assembly is arranged, and the adjusting assembly is used for adjusting the air outlet state of at least one humidifying area, the air outlet state comprises a first state and a second state, and the air outlet amount of the humidifying area in the first state is greater than that in the second state. The application further discloses a control method of the indoor unit, an air conditioner and a storage medium. When the indoor unit is controlled by the control method, the local humidity can be avoided to be high, the purpose of uniform humidification is achieved, and the humidification effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of household appliances, in particular to an indoor unit, a control method thereof, an air conditioner and a storage medium. BACKGROUND

[0002] With the development of technology, the functions integrated in air conditioners are more and more, such as not only being able to realize the functions of refrigeration and heating, but also having the function of air purification, such as humidification. Since such air conditioners integrate multiple functions in one, the occupation space and purchase cost of other intelligent devices can be reduced, so such air conditioners are widely used.

[0003] Although the air conditioner has the functions of heat exchange and humidification, in the conventional design, the humidification air outlet and the heat exchange air outlet are independently designed, and the humidification air outlet is generally arranged below the heat exchange air outlet. However, humidified air is prone to sink, which can cause uneven humidification, higher local humidity, and poor humidification effect. SUMMARY

[0004] The main purpose of the present application is to provide an indoor unit, a control method thereof, an air conditioner and a storage medium, which aims to solve the technical problem of uneven humidification of the indoor unit, higher local humidity, and poor humidification effect.

[0005] To achieve the above-mentioned purpose, the present application provides an indoor unit, which comprises:

[0006] a shell, wherein an air inlet and an air outlet are arranged on the shell;

[0007] a volute, wherein the volute is arranged in the shell, and a heat exchange air duct communicating with the air inlet and the air outlet is formed in the volute;

[0008] a humidification device, wherein at least two humidification areas capable of communicating with the heat exchange air duct are arranged on the humidification device; and

[0009] at least one adjustment assembly, wherein the adjustment assembly is used for adjusting the air outlet state of at least one humidification area, the air outlet state comprises a first state and a second state, and the air outlet amount of the humidification area in the first state is greater than that in the second state.

[0010] Optionally, the humidification device comprises a humidifier and a humidification pipeline, one end of the humidification pipeline is connected with the humidifier, the other end of the humidification pipeline extends along the axial direction of the volute, the humidification areas are arranged on the humidification pipeline, each humidification area comprises at least one humidification port, and a plurality of humidification ports are arranged at intervals along the extension direction of the humidification pipeline.

[0011] Optionally, the adjusting assembly comprises a switching baffle, which is movably arranged between two adjacent humidifying areas in the humidifying pipeline or arranged at the humidifying port, so as to adjust the air flow through the humidifying areas in the humidifying pipeline.

[0012] Optionally, the humidifying pipeline extends from the top of the shell to the bottom of the shell, and the humidifying pipeline has an air inlet end close to the top of the shell, and the air outlet is located between the top and the bottom of the shell.

[0013] Optionally, the humidifier is arranged at the bottom of the shell, and the humidifying device further comprises a gas conveying pipeline, one end of the gas conveying pipeline being connected with the humidifier, and the other end being connected with the air inlet end of the humidifying pipeline.

[0014] Optionally, the humidifying pipeline is arranged in the volute, and the humidifying areas are directed towards the heat exchange air duct.

[0015] Alternatively, the humidifying pipeline is arranged between the volute and the shell, and the volute is provided with a through hole corresponding to the humidifying areas, and the humidifying areas are in communication with the heat exchange air duct through the through hole.

[0016] The application further provides a control method of an indoor unit, which is applied to the indoor unit as described above, and comprises the following steps:

[0017] Controlling the humidifying device in the indoor unit to start;

[0018] Controlling the adjusting assembly to adjust the air outlet state of the humidifying areas of the indoor unit, so that the air outlet state of at least one of the humidifying areas is the first state, wherein the air outlet state comprises the first state and the second state, and the air outlet amount of the humidifying area in the first state is greater than that in the second state.

[0019] Optionally, the step of controlling the adjusting assembly to adjust the air outlet state of the humidifying areas of the indoor unit, so that the air outlet state of at least one of the humidifying areas is the first state, comprises:

[0020] Obtaining the humidity value of the room where the indoor unit is located;

[0021] Adjusting the air outlet state of the humidifying areas according to the humidity value, so that at least one of the humidifying areas is in the first state.

[0022] Optionally, the humidifying pipeline of the humidifying device extends from the top to the bottom of the indoor unit, the adjusting assembly comprises a switching baffle, the switching baffle is movably arranged between two adjacent humidifying areas in the humidifying pipeline, each humidifying area comprises at least one humidifying port, and the step of adjusting the air outlet state of the humidifying area according to the humidity value comprises:

[0023] When the humidity value is less than a first preset threshold, all the humidifying areas are adjusted to the first state.

[0024] Optionally, after the step of adjusting all the humidifying areas to the first state, the method further comprises:

[0025] After a first preset time interval, if the humidity value is greater than or equal to the first preset threshold, part of the humidifying areas are adjusted to the second state.

[0026] Optionally, the humidifying areas are distributed from the top to the bottom of the indoor unit, and the step of adjusting the air outlet state of the humidifying area according to the humidity value to make at least one humidifying area in the first state further comprises:

[0027] When the humidity value is greater than or equal to the first preset threshold and less than a second preset threshold, at least one humidifying area close to the top of the indoor unit is adjusted to the first state, wherein the first preset threshold is less than the second preset threshold.

[0028] Optionally, the humidifying pipeline of the humidifying device is provided with at least two humidifying areas along the extension direction of the humidifying pipeline, and the step of controlling the adjusting assembly to adjust the air outlet state of the humidifying area of the indoor unit to make at least one humidifying area in the first state comprises:

[0029] Each humidifying area is sequentially adjusted to the first state along the extension direction of the humidifying pipeline;

[0030] After a second preset time interval, each humidifying area is adjusted to the second state along a direction opposite to the extension direction.

[0031] Optionally, the control method further comprises:

[0032] Obtaining the operation mode of the indoor unit;

[0033] When the operation mode is a heating mode and the humidity value of the indoor where the indoor unit is located is less than or equal to the first preset threshold, the step of controlling the humidifying device in the indoor unit to start is performed.

[0034] Optionally, the control method further comprises:

[0035] If the operation mode is the heating mode and the humidity value is greater than the first preset threshold value, after a preset time interval, the humidity value of the indoor is detected;

[0036] If the humidity value is less than or equal to the first preset threshold value, at least one humidifying area close to the top of the indoor unit is adjusted to the first state.

[0037] The application further provides an air conditioner, which comprises a processor, a memory and a control program stored in the memory and executable on the processor, and when the control program is executed by the processor, the steps of the control method of the indoor unit are implemented.

[0038] The application further provides a storage medium, which stores a control program, and when the control program is executed by a processor, the steps of the control method of the indoor unit are implemented.

[0039] The application further provides a computer program product, which comprises a control program, and when the control program is executed by a processor, the steps of the control method of the indoor unit are implemented.

[0040] The indoor unit and the control method thereof, the air conditioner and the storage medium provided by the application have the following advantages: based on the humidifying areas of the humidifying device being in communication with the heat exchange air duct, humidified air is directly delivered to the heat exchange air duct, fully mixed with air in the heat exchange air duct and then discharged to the indoor, and in the air confluence process in the heat exchange air duct, the humidified air and the heat exchange air are uniformly mixed; and based on the humidifying device being provided with at least two humidifying areas distributed at different positions, by adjusting the state of the humidifying areas through the adjusting assembly, when the local humidity is relatively high, the humidifying area corresponding to the position with relatively high humidity is adjusted to the second state, so as to reduce the humidity corresponding to the humidifying area, and meanwhile, the humidifying areas at other positions are kept to continue humidifying, so that the purpose of uniform humidification is achieved and the humidifying effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0041] Fig. 1 A front structure schematic diagram of the indoor unit provided by the embodiment of the application is shown in the figure;

[0042] Fig. 2 A front structure schematic diagram of the indoor unit provided by the embodiment of the application is shown in the figure; Fig. 1 A sectional structure schematic diagram of the indoor unit provided by the embodiment of the application is shown in the figure;

[0043] Fig. 3 An explosion view of the indoor unit provided by the embodiment of the application is shown in the figure;

[0044] Fig. 4 An explosion view of the indoor unit provided by the embodiment of the application is shown in the figure;

[0045] Fig. 5 Assembled structure schematic diagram of the volute and the humidifying pipeline of the indoor unit provided by the embodiment of the present application;

[0046] Fig. 6 As Fig. 5 Schematic diagram of the cross-sectional structure along the direction of B-B;

[0047] Fig. 7 As Fig. 5 Schematic diagram of the cross-sectional structure along the direction of C-C;

[0048] Fig. 8 Schematic diagram of the hardware environment terminal structure involved in the control method of the indoor unit provided by the embodiment of the present application;

[0049] Fig. 9 Flowchart of the first embodiment of the control method of the indoor unit provided by the embodiment of the present application;

[0050] Fig. 10 As Fig. 9 Flowchart of some embodiments of step S20;

[0051] Fig. 11 As Fig. 9 Flowchart of other embodiments of step S20;

[0052] Fig. 12 Flowchart of the second embodiment of the control method of the indoor unit provided by the embodiment of the present application;

[0053] Fig. 13 Flowchart of the third embodiment of the control method of the indoor unit provided by the embodiment of the present application;

[0054] Fig. 14 Flowchart of the fourth embodiment of the control method of the indoor unit provided by the embodiment of the present application.

[0055] Reference Name Reference Name 100 Indoor unit 20 Humidifying device 10 Housing 21 Humidifier 11 Air inlet 22 Humidifying pipeline 12 Air outlet 23 Humidifying port 13 Volute 24 Gas conveying pipeline 14 Impeller 30 Adjusting assembly 15 Heat exchange air duct 31 Switching baffle 16 Through hole 32 Driving member 17 First panel 40 Water tank 18 Second panel 19 Water tank mounting seat

[0056] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0057] It should be understood that the specific embodiments described herein merely serve to explain the present application and are not intended to limit the present application.

[0058] For a better understanding of the above technical solutions, the exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be accurately conveyed to those skilled in the art.

[0059] The humidifying air outlet and the heat exchanging air outlet of the example air conditioner indoor unit are independently designed, and the humidifying air outlet is generally arranged below the heat exchanging air outlet. The humidified air is easy to sink, which can easily lead to uneven humidification, higher local humidity, and poor humidification effect.

[0060] Therefore, the present application provides an air conditioner indoor unit, which can achieve uniform humidification when adjusting the indoor environment (such as adjusting temperature, humidity, etc.).

[0061] For details, please refer to Fig. 1 , Fig. 2 and Fig. 5 , the indoor unit 100 comprises:

[0062] A housing 10, the housing 10 is provided with an air inlet 11 and an air outlet 12.

[0063] A volute 13, the volute 13 is arranged in the housing 10, the volute 13 is formed with a heat exchanging air duct 15 communicating with the air inlet 11 and the air outlet 12; the volute 13 is provided with a fan 14, the fan 14 drives the air to enter and exit from the air inlet 11, and the air is discharged from the air outlet 12 after passing through the heat exchanging air duct 15.

[0064] A humidifying device 20, the humidifying device 20 is provided with at least two humidifying areas capable of communicating with the heat exchanging air duct 15.

[0065] At least one adjusting assembly 30, the adjusting assembly 30 is used for adjusting the air outlet state of at least one humidifying area, the air outlet state includes a first state and a second state, the air outlet amount of the humidifying area in the first state is greater than the air outlet amount of the humidifying area in the second state.

[0066] It should be noted that when the humidifying area of the humidifying device 20 communicates with the heat exchanging air duct 15, the air humidified by the humidifying device 20 enters the heat exchanging air duct 15 from the humidifying area, mixes with the air after heat exchange in the heat exchanging air duct 15, and then is discharged to the indoor from the air outlet 12.

[0067] When the humidifying area is in the first state, the humidifying area is in communication with the heat exchange air duct 15, that is, the humidifying area can blow air; when the humidifying area is in the second state, the humidifying area can be not in communication or partially in communication with the heat exchange air duct 15, that is, the humidifying area does not blow air or blows air in a small amount. In this way, by adjusting the state of the humidifying area through the adjusting assembly 30, adjustment of humidification at different positions is realized, and then uniform humidification is realized.

[0068] In this embodiment, the indoor unit 100 is based on the humidifying device 20 to perform humidification, the humidifying device 20 is provided with at least two humidifying areas, and the humidifying areas can be in communication or not in communication with the heat exchange air duct 15 under the action of the adjusting assembly 30. The humidifying areas are arranged separately and are in communication with different positions of the heat exchange air duct 15, so that humidified air can be delivered to different positions, avoiding that humidified air is discharged from one position; and by adjusting the air blowing state of all or part of the humidifying areas through the adjusting assembly 30, the humidification amount at each position can be adjusted by adjusting different humidifying areas to be in different air blowing states, so that the humidification at each position is balanced, thereby avoiding that the humidity at a local position is too high and improving the humidification effect.

[0069] Optionally, in this embodiment, the adjusting assembly 30 can be controlled based on a controller, the indoor unit 100 further includes a humidity sensor, the humidity sensor is used to collect indoor environment humidity, the humidity sensor is connected with the controller, and the controller controls each adjusting assembly 30 according to the environment humidity value collected by the humidity sensor to adjust the air blowing state of each humidifying area, so that the indoor unit 100 achieves the purpose of uniform humidification and makes the indoor humidity more uniform.

[0070] Optionally, please refer to Fig. 3 and Fig. 4 , the humidifying device 20 includes a humidifier 21 and a humidifying pipeline 22 for delivering air humidified by the humidifier 21, one end of the humidifying pipeline 22 is connected with the humidifier 21, and the other end extends along the axial direction of the volute 13, the humidifying areas are arranged on the humidifying pipeline 22, each humidifying area includes at least one humidifying port 23, and a plurality of humidifying ports 23 are arranged at intervals along the extension direction of the humidifying pipeline 22.

[0071] The axial direction of the volute 13 is parallel to the axial direction of the impeller 14, while the axial direction of the impeller 14 is parallel to the length direction of the air outlet 12. By extending the humidification pipe 22 along the axial direction of the volute 13, the humidification pipe 22 is distributed along the length of the air outlet 12. Thus, the humidification ports distributed on the humidification pipe 22 deliver humidified air to corresponding positions along the length direction of the air outlet 12, ensuring that all air discharged into the room from the air outlet is humidified.

[0072] When the indoor unit 100 is a wall-mounted unit, the length direction of the air outlet 12 is horizontal, that is, the axial direction of the volute 13 is horizontal. The humidification pipe 22 extends along the length of the air outlet, and the humidification ports 23 are spaced apart along the extension direction of the humidification pipe 22. This allows the air entering the heat exchange duct 15 from the humidification ports 23 and being humidified to be evenly mixed within the heat exchange duct 15, and then discharged into the room through various positions along the length of the air outlet 12, improving the uniformity of humidification. Alternatively, when the indoor unit 100 is a floor-standing unit, the length direction of the air outlet 12 is vertical, the axial direction of the volute 13 is also vertical, the humidification pipe 22 extends vertically, and the humidification ports 23 are spaced apart along the extension direction of the humidification pipe 22. This ensures that humidification ports 23 are provided at various positions corresponding to the air outlet 12, resulting in more uniform humidification.

[0073] Optionally, the humidification pipe 22 is disposed inside the volute 13, and the humidification area faces the heat exchange air duct 15, that is, the humidification port 23 faces the heat exchange air duct 15. If the humidification pipe 22 extends into the volute 13, the humidification port 23 connects the humidification pipe 22 and the heat exchange air duct 15. When the humidifier 21 starts humidifying, air is delivered to the humidification port 23 through the humidification pipe 22, and then directly enters the heat exchange air duct 15 after passing through the humidification port 23.

[0074] Alternatively, the humidification pipe 22 is disposed between the volute 13 and the housing 10. A through hole 16 is provided on the volute 13 at a position corresponding to the humidification area, and the humidification area communicates with the heat exchange duct 15 through the through hole. In some embodiments, one through hole is provided, or in some embodiments, multiple through holes are provided, such as corresponding one-to-one with the humidification ports on the humidification area. The humidification port 23 communicates with the corresponding through hole 16, thus connecting the humidification pipe 22 and the heat exchange duct 15. When the humidifier 21 starts humidifying, air is delivered through the humidification pipe 22 to the humidification port 23, and then enters the heat exchange duct 15 through the through hole 16 after passing through the humidification port 23. In this embodiment, disposing of the humidification pipe 22 between the volute 13 and the housing 10 avoids the humidification pipe 22 being inside the heat exchange duct 15 and affecting the airflow from the heat exchange duct.

[0075] Optionally, the adjustment component 30 is used to adjust the air outlet state of at least one of the humidification zones. Specifically, the adjustment component 30 includes a drive member 32 and a switching baffle 31. The drive member 32 is connected to the switching baffle 31, and the drive member 32 is used to drive the switching baffle 31 to move between a first position and a second position. When the switching baffle 31 is in the first position, it can open the humidification port 23 on the humidification zone. When the switching baffle 31 is in the second position, it can directly block the humidification port 23 on the humidification zone or isolate the humidification port 23 from the humidifier 21. In some embodiments, a switching baffle 31 is provided on each humidification port 23. The switching baffle 31 is movably disposed on the humidification pipe 22, and when it moves to the position corresponding to the humidification port 23, it blocks the humidification port 23; when it moves to a position away from the humidification port 23, it blocks the humidification port 23. The humidification port 23 is opened to adjust the airflow status of the humidification area. In other embodiments, the switching baffle 31 is movably disposed between two adjacent humidification areas within the humidification pipe 22. For example, the switching baffle 31 is rotatably disposed between two adjacent humidification areas. The humidification port 23 is connected to the heat exchange duct 15. When the switching baffle 31 is rotated to one position, it blocks the connection between the two adjacent humidification areas. When the switching baffle 31 is rotated to another position, the two adjacent switching baffles are connected. The switching baffle 31 can be located inside the humidification pipe 22 or between the humidification pipe 22 and the volute 13.

[0076] Optionally, the drive component 32 is a motor, and the motor is connected to the controller.

[0077] Alternatively, the humidification pipe 22 is disposed between the volute 13 and the housing 10, and a connecting air duct is formed between the through hole on the volute 13 and the humidification port on the humidification pipe 22. The connecting air duct connects the humidification pipe 22 and the heat exchange air duct 15. Optionally, the switching baffle 31 is movably disposed in the connecting air duct, and the air outlet state of the humidification port 23 is changed by opening or closing the connecting air duct.

[0078] Alternatively, please refer to Fig. 5 and Fig. 6 The switching baffle 31 can also adjust the air outlet state of the humidification area by blocking or opening the humidification pipe 22.

[0079] In some embodiments, the adjustment component 30 includes a switching baffle 31, which is movably disposed between two adjacent humidification zones within the humidification duct 22 to adjust the airflow through the humidification zones in the humidification duct 22. If humidified air enters the humidification duct 22 from the air inlet, and there is at least one humidification zone between the switching baffle 31 and the air inlet, and at least one humidification zone is also present on the side of the switching baffle 31 away from the air inlet, then the airflow state of the humidification zone on the side of the switching baffle 31 away from the air inlet switches between a first state and a second state based on the adjustment of the switching baffle 31.

[0080] Specifically, the switching baffle 31 has a first position and a second position. When the switching baffle 31 is in the first position, the airflow of the humidification pipe 22 is greater than when the switching baffle 31 is in the second position. That is, when the switching baffle 31 is in the first position, the airflow state of the humidification area is switched to the first state; when the switching baffle 31 is in the second position, the airflow state of the humidification area is switched to the second state. The connection between the switching baffle 31 and the humidification pipe 22 includes one of movement and rotation. For example, one end of the switching baffle 31 is rotatably connected to the inner wall of the humidification pipe 22, while the other end of the switching baffle 31 rotates around the inner wall of the humidification pipe 22; and the movement is the radial movement of the switching baffle 31 along the humidification pipe 22.

[0081] In some embodiments, the first position is a position where the switching baffle 31 is parallel to the airflow direction within the humidification pipe 22; the second position is a position where the switching baffle 31 is perpendicular to the airflow direction within the humidification pipe 22. When the switching baffle 31 rotates to the first position, the switching baffle 31 makes the humidification pipe 22 open. At this time, the humidification area (humidification port 23) can normally output air, that is, the humidification area is in the first state. If the humidification port 23 normally outputs air, the humidification pipe 22 outputs the humidified air to each of the humidification areas, and then each of the humidification areas transports it into the heat exchange duct 15.

[0082] When the switching baffle 31 is rotated to the second position, the switching baffle 31 blocks part of the flow section of the humidification pipe 22. As a result, the humidification pipe 22 can only output humidified air to part of the humidification area. The part of the humidification area on the blocked flow section does not receive humidified air, or only receives a small amount of humidified air. Therefore, part of the humidification area (humidification port 23) cannot output air normally. At this time, part of the humidification area is in the second state.

[0083] In the embodiment where the air outlet state of the humidification area is adjusted by blocking or opening the humidification pipe 22 through the switching baffle 31, since the humidification pipe 22 is directly blocked, air cannot be delivered to other humidification areas that are far from the air inlet end of the humidification pipe 22 relative to the switching baffle 31. Therefore, in this embodiment, when the switching baffle 31 is rotated to the second position, the humidification areas on the humidification pipe 22 that are far from the air inlet end are first adjusted to the second state. However, since humidified air tends to sink, even if uniform humidification is achieved by distributing the humidification areas along the length of the air outlet 12, the humidity at the bottom of the room is higher than the humidity at the top after a certain humidification time. Therefore, to further improve the humidification effect of the air conditioner unit, this embodiment proposes a further optimized embodiment based on the above embodiment:

[0084] For example, when the indoor unit 100 is a cabinet unit, the air outlet is located between the top and bottom of the cabinet unit's casing 10. Due to air sinking, the lower part of the cabinet unit humidifies faster and achieves higher humidity. Therefore, during humidification, the lower humidification area can be preferentially closed or the airflow reduced based on humidity changes, thereby reducing the humidification load at the bottom of the indoor unit 100. Thus, the reasonable design of the humidification device 20 in this embodiment enables more uniform humidity adjustment and better humidification effect.

[0085] Specifically, the humidification pipe 22 extends from the top of the housing 10 to the bottom of the housing 10, and the end of the humidification pipe 22 near the top is the air inlet. Thus, during the humidification process, the humidification area in the lower part of the housing 10 is first in a second state by adjusting the humidification port 23 corresponding to the humidification area to close or reduce the air flow to prevent the humidity in the lower part from continuing to increase, while keeping the humidification area near the air inlet in the first state. For example, the humidification port 23 near the air inlet is opened to continuously humidify the air humidity in the upper part of the housing 10, so that the upper and lower parts are kept in balance, thereby keeping the humidity of the upper and lower layers of the room in balance and reducing the humidity difference.

[0086] The humidifier 21 can be located at the top of the housing 10, and the humidification pipe 22 extends from the humidifier 21 in a direction away from the humidifier 21, so that the humidification pipe 22 extends from the top of the housing 10 to the bottom. The air humidified by the humidifier 21 is discharged from the top to the bottom of the housing 10 and then to the heat exchange air duct 15. Thus, when the adjusting component 30 adjusts the humidification port 23 to the second state, the adjustment starts from the bottom of the housing 10, controlling the humidity at the bottom first, while the humidity at the top will sink to the bottom over time. In this way, the bottom will not have a low humidity situation when humidification stops, thereby reducing the humidity difference between the top and the bottom.

[0087] Alternatively, in an optional embodiment, the humidifier 21 is disposed at the bottom of the housing 10, and the humidifier 21 is provided with an air supply pipe 24. The end of the air supply pipe 24 away from the humidifier 21 is connected to the end of the humidification pipe 22 near the top of the housing 10. The air humidified by the humidifier 21 is transported to the top of the housing 10 through the air supply pipe 24, and then from the top of the housing 10 into the humidification pipe 22, and then discharged from the humidification pipe 22 to the heat exchange air duct 15. In this way, the air humidified by the humidifier 21 is discharged from the top of the housing 10 to the bottom of the housing 10 and then to the heat exchange air duct 15.

[0088] In this embodiment, the humidifier 21 is placed at the bottom of the housing 10, which can avoid the indoor unit 100 being too heavy at the top. In addition, the humidifier 21 is placed at the bottom, which makes it easy to replace and maintain, and also makes it easy to connect to the water tank 40.

[0089] In this embodiment, the state of each humidification zone is adjusted by setting the adjustment component 30. For example, when the local humidity is high, the air outlet state of the humidification zone corresponding to the high humidity position is switched to the second state (e.g., off), while the air outlet state of the humidification zone corresponding to the low humidity position is kept in the first state (e.g., on, normal air outlet). This can further adjust the indoor humidification balance and achieve a better humidification effect.

[0090] In an optional embodiment, when the indoor unit 100 is a cabinet unit, the air outlet 12 is located between the top and bottom of the indoor unit 100 along the humidification area. The humidification area is distributed along the top of the indoor unit 100 towards the bottom, and each humidification area can communicate with the air outlet 12.

[0091] Optionally, when the indoor unit 100 is a cabinet unit, the housing 10 includes a first panel 17 and a second panel 18. The first panel 17 forms a pick-up and put-out opening, and the second panel 18 is disposed at the pick-up and put-out opening and is detachably connected to the first panel 17. The indoor unit 100 also includes a water tank 40, which is connected to the humidifier 21. The water tank 40 is disposed inside the housing 10 and located at the position corresponding to the pick-up and put-out opening.

[0092] The second panel 18 is detachable from the first panel 17, and the water tank 40 is located at the position corresponding to the inlet / outlet. By removing the second panel 18, the water in the water tank 40 can be directly replaced / water can be directly added to the water tank 40, increasing the convenience of replacing the water tank 40. Optionally, the second panel 18 is located below the first panel 17.

[0093] Optionally, the indoor unit 100 further includes a water tank mounting base 19 disposed on the housing 10, the mounting opening of the water tank mounting base 19 facing the second panel 18, and the water tank 40 being mounted on the water tank mounting base 19.

[0094] Optionally, the humidifier 21 in this embodiment further includes at least one of a wet film evaporation module and an ultrasonic humidification module. The humidifier 21 uses at least one of the wet film evaporation module and the ultrasonic humidification module to humidify the air passing through it. In embodiments where the humidifier 21 includes at least one of the wet film evaporation module and the ultrasonic humidification module, when the indoor unit 100 starts in heating mode, the ultrasonic humidification module is selected for humidification; when the indoor unit 100 starts in other modes besides heating mode, the wet film evaporation module is selected for humidification. Given that the ultrasonic humidification module has high humidification efficiency but short service life and high cost, this embodiment sets up two humidification modules and uses different methods for humidification in different modes. This ensures humidification efficiency in heating mode while extending the service life of the ultrasonic humidification module.

[0095] Optionally, the opening of the humidification port 23 is oriented perpendicular to the axis of the volute 13. The humidified air is then blown vertically toward the heat exchange duct 15, creating a countercurrent with the air inside the heat exchange duct 15, making it easier to mix.

[0096] Optionally, the opening of the humidification port 23 faces the direction of the volute tongue of the volute 13, and the direction of the opening forms an angle with the airflow direction in the heat exchange duct 15, and the angle is an acute angle, which can avoid affecting the airflow in the heat exchange duct 15 during the humidification process.

[0097] Optionally, as one implementation, the present invention also provides a control method for an indoor unit, wherein the hardware environment architecture involved in the control method of the indoor unit can be as follows: Fig. 8 As shown.

[0098] Specifically, the hardware environment involved in the indoor unit control method may include a control terminal, such as a mobile terminal, an air conditioner, or an indoor unit with an independent processor. It should be noted that the control terminal is used to control the indoor unit to implement the control methods in the following embodiments.

[0099] In one implementation, the control terminal includes: a processor 101, such as a CPU, a memory 102, and a communication bus 103. The communication bus 103 is used to establish communication between these components. The processor 102 is used to invoke an application program to execute control functions.

[0100] The memory 102 can be a high-speed RAM or a stable memory (non-volatile memory), such as a disk storage device.

[0101] In some embodiments, the control program for implementing the indoor unit control method is stored in the air conditioner's memory 102. When the processor 101 retrieves the control program from the memory 102, it performs the following operations:

[0102] Control the humidification device in the indoor unit to start;

[0103] The control adjustment component adjusts the air outlet state of the humidification area of ​​the indoor unit so that the air outlet state of at least one of the humidification areas is a first state, wherein the air outlet state includes a first state and a second state, and the air outlet volume of the humidification area in the first state is greater than the air outlet volume of the humidification area in the second state.

[0104] In other embodiments, the control program implementing the indoor unit control method is stored in a computer-readable storage medium. When the storage medium is applied to a computer, the computer's processor 101 can invoke the usage status prompt program from the storage medium and perform the following operations:

[0105] Control the humidification device in the indoor unit to start;

[0106] The control adjustment component adjusts the air outlet state of the humidification area of ​​the indoor unit so that the air outlet state of at least one of the humidification areas is a first state, wherein the air outlet state includes a first state and a second state, and the air outlet volume of the humidification area in the first state is greater than the air outlet volume in the second state.

[0107] While the example air conditioner has both heat exchange and humidification functions, in conventional designs, the humidification and heat exchange air outlets are designed independently, with the humidification outlet typically located below the heat exchange outlet. Since humidified air tends to sink, this can lead to uneven humidification, resulting in locally high humidity and poor humidification performance. Based on the aforementioned structure of the indoor unit and its operating hardware architecture, this invention proposes various embodiments of the control method for the indoor unit. When the indoor unit starts humidification, it uses control and adjustment components to rationally adjust the airflow from each humidification outlet of the humidification device, achieving uniform indoor humidification and preventing excessively high local humidity. Therefore, this indoor unit offers better humidification performance compared to the example air conditioner.

[0108] First embodiment:

[0109] Please refer to Fig. 9 The control method for the indoor unit includes the following steps:

[0110] Step S10: Control the humidification device of the indoor unit to start;

[0111] Step S20: Control the adjustment component to adjust the air outlet state of the humidification zone of the indoor unit so that the air outlet state of at least one of the humidification zones is in a first state.

[0112] In this embodiment, the execution terminal is a control terminal, which can be a mobile terminal, an air conditioner, or an indoor unit with an independent processor. The control terminal is connected to the humidification device and adjustment component of the indoor unit. During operation, it controls the humidification device to start based on humidification commands and controls the adjustment component to adjust the airflow status of each humidification zone.

[0113] It should be noted that you should refer to the following: Fig. 1 , Fig. 2 and Fig. 5 The indoor unit 100 includes:

[0114] The housing 10 is provided with an air inlet 11 and an air outlet 12.

[0115] The volute 13 is disposed inside the housing 10. A heat exchange air duct 15 is formed inside the volute 13, connecting the air inlet 11 and the air outlet 12. A fan wheel 14 is provided inside the volute 13. When the fan wheel 14 rotates, it drives the air to enter and exit from the air inlet 11, and after passing through the heat exchange air duct 15, it is discharged from the air outlet 12.

[0116] The humidification device 20 is provided with at least two humidification zones that can communicate with the heat exchange duct 15.

[0117] At least one adjustment component 30 is provided for adjusting the air outlet state of at least one of the humidification zones, the air outlet state including a first state and a second state, wherein the air outlet volume of the humidification zone in the first state is greater than the air outlet volume of the humidification zone in the second state.

[0118] It is understood that when the humidification area is in the first state, the humidification area is open and can output air normally. When the humidification area is in the second state, the corresponding humidification area may be closed, such as not being able to output air, or the corresponding humidification area may be partially closed, such as the air output volume being less than the normal air output volume.

[0119] In this embodiment, when the control terminal receives a humidification command, it controls the humidification device 20 of the indoor unit 100 to start. When the humidification device 20 starts, it begins to humidify the air and delivers the humidified air through the humidification zone to the heat exchange duct 15 of the indoor unit 100. The humidified air mixes with the heat-exchanged air in the heat exchange duct 15 before being discharged into the room from the air outlet 12. Because the humidification zone directly delivers the humidified air to the heat exchange duct, the heat-exchanged air and the humidified air mix in the heat exchange duct 15 before being discharged into the room. Furthermore, multiple humidification zones can deliver the humidified air to the heat exchange duct 15 at different locations, evenly distributing the humidified air. The humidification command can be manually triggered by the user or automatically triggered by the indoor unit 100. For example, if the indoor humidity is less than a first preset threshold, the control terminal receives the humidification command and controls the humidification device 20 of the indoor unit 100 to start humidification.

[0120] In this embodiment, the adjustment component 30's adjustment of the air outlet state of the humidification area can further improve the uniformity of humidified air distribution. Specifically, when the humidification area is in the first state, it is connected to the heat exchange duct, meaning it can outlet air. When the humidification area is in the second state, it may not be connected to the heat exchange duct or may be partially connected, meaning it does not outlet air or the outlet air volume is small. Thus, by adjusting the state of the humidification area through the adjustment component 30, humidification at various locations can be adjusted, thereby achieving uniform humidification.

[0121] In this embodiment, the indoor unit 100 humidifies based on the humidification device 20, which has at least two humidification zones that can communicate with the heat exchange air duct. By separating the humidification zones, it is possible to avoid the humidified gas being discharged from a single location. Furthermore, by setting the adjustment component 30 to adjust the air outlet state of the humidification zones, the humidification amount at each location can be adjusted to achieve balanced humidification at each location. This avoids excessively high local humidity and improves the humidification effect.

[0122] Optionally, in this embodiment, after the humidifier 20 is started, the control terminal controls the adjustment component 30 to adjust the air outlet state of the humidification area of ​​the indoor unit 100 in ways including but not limited to the following two embodiments:

[0123] For example, in some embodiments, please refer to Fig. 10 The step of controlling the adjustment component to adjust the air outlet state of the humidification zone of the indoor unit so that the air outlet state of at least one of the humidification zones is in a first state includes:

[0124] Step S21: Obtain the humidity value of the room where the indoor unit is located;

[0125] Step S22: Adjust the air outlet state of the humidification area according to the humidity value so that at least one of the humidification areas is in a first state.

[0126] In this embodiment, a humidity sensor is installed at the return air vent of the indoor unit or in the environment where the indoor unit is located to detect the indoor humidity value, and then adjust the air outlet status of each humidifier port according to the humidity value.

[0127] For example, in some embodiments, please refer to the references Fig. 5 The adjustment component 30 includes a switching baffle 31, and each humidification zone is provided with a corresponding switching baffle 31 to adjust the air outlet state of the humidification zone. When a high indoor humidity value is detected, the second state of some of the humidification zones is switched, thereby reducing the air outlet volume of some humidification zones and thus reducing the humidity of the corresponding area of ​​the humidification zone.

[0128] In some embodiments, by installing multiple humidity sensors in different locations within the room, a target humidification area is identified by measuring the humidity of the sensor with the lowest humidity value. This target humidification area is then switched to the first state, while other humidification areas remain in the second state. This reduces humidity in areas with higher humidity, while maintaining continuous humidification in areas with lower humidity, thus ensuring uniform humidity throughout the room. In other words, adjusting the target humidification area ensures normal airflow and humidification at its corresponding location, while other humidification areas are closed or have reduced airflow, decreasing humidification at their corresponding locations. This reduces the humidity difference between the target and other humidification areas, resulting in balanced humidification across all locations.

[0129] Alternatively, in some embodiments, based on the principle that humidified air sinks, a humidity sensor is installed at the air inlet of the indoor unit. When a high humidity value is detected, the humidification area near the air inlet is adjusted to maintain the second state, while other humidification areas are adjusted to the first state, thus keeping the indoor humidity uniform.

[0130] This embodiment adjusts the air outlet state of the humidification area based on the humidity value detected in real time or at regular intervals, which can ensure that the humidity of the environment meets the humidity requirements while maintaining humidity balance and improving humidification uniformity.

[0131] As in some other embodiments, please refer to Fig. 11The humidification device has at least two humidification zones along its extending direction, and the step of controlling the adjustment component to adjust the air outlet state of the humidification zone of the indoor unit so that the air outlet state of at least one of the humidification zones is in a first state includes:

[0132] Step S23: Adjust each of the humidification zones to the first state sequentially along the extension direction of the humidification pipe;

[0133] Step S24: After the second preset time interval, adjust each of the humidification zones to the second state in a direction opposite to the extension direction.

[0134] It is understandable that steps S23 and S24 above are repeated every preset time interval.

[0135] In some embodiments, please refer to Fig. 5 and Fig. 6 The adjustment component 30 is disposed within the humidification pipe 22, specifically adjusting the airflow of the humidification area by adjusting the airflow of the humidification pipe 22. The humidification area between the adjustment component 30 and the air inlet of the humidification pipe 22 does not have the adjustment component 30, therefore this humidification area is always in the first state, i.e., always open. Thus, after the humidification device 20 is started, at least one humidification area is always kept in the first state, i.e., always kept open. Adjusting each humidification area to the second state means adjusting the humidification area corresponding to each adjustment component to the second state, such as closing the humidification port 23 on the corresponding humidification area.

[0136] In this embodiment, the humidifier 20 is provided with multiple humidification zones, and the air outlet state of the humidification zones is adjusted by the adjustment component 30. Thus, after the humidifier 20 is started, by sequentially controlling each humidification zone to adjust to the first state, and then controlling each humidification zone to adjust to the second state, the purpose of sweeping humidification is achieved, thereby realizing uniform humidification of the room.

[0137] It is understood that the humidification area is provided with at least one humidification port, and the humidification area realizes air outlet through the humidification 23, such as the humidification port 23 being connected to the heat exchange air duct 15, or the humidification port 23 being connected to the through hole 16 on the volute 13.

[0138] In an optional embodiment, in order to reduce the number of adjustment components 30, each humidification zone is provided with at least one humidification port in this embodiment. During the humidification process, the air outlet status of multiple humidification ports is controlled by controlling the first state of each humidification zone, thereby reducing the number of adjustment components.

[0139] The following describes the specific implementation of adjusting the air outlet state of the humidification area of ​​the indoor unit 100 when the humidification pipe 22 of the humidification device 20 is provided with two humidification areas along its extension direction, as described in the above embodiments: If a first humidification area and a second humidification area are sequentially provided along the airflow direction of the humidification pipe 22, after the humidification device 20 is started, it first controls the first humidification area to be adjusted to the first state, such as opening the humidification port corresponding to the first humidification area, so that the first humidification area humidifies first; then it controls the second humidification area to be adjusted to the first state, such as opening the humidification port corresponding to the second humidification area, so that the first humidification area and the second humidification area humidify simultaneously. After a second preset time interval, it first controls the second humidification area to be adjusted to the second state, such as closing the humidification port corresponding to the second humidification area, so that the humidification port corresponding to the second humidification area stops humidifying; then it controls the first humidification area to be adjusted to the second state, such as closing the humidification port 23 corresponding to the first humidification area, so that the humidification port corresponding to the second humidification area stops humidifying. This process of cyclically controlling the airflow in each humidification zone ensures uniform indoor humidity.

[0140] Optionally, in the wall-mounted air conditioner embodiment, the airflow direction of the humidification pipe 22 can be horizontal from left to right or horizontal from right to left. In the cabinet air conditioner embodiment, the airflow direction of the humidification pipe 22 is vertical from top to bottom.

[0141] When the indoor unit is a cabinet-type indoor unit, the humidification pipe 22 extends along the axial direction of the volute 13, so that the humidification areas on the humidification pipe 22 are distributed along the vertical direction of the indoor unit 100. In this embodiment, each of the humidification areas is adjusted to the first state sequentially along the extension direction of the humidification pipe 22, and vertical airflow is used for humidification. In this way, the air in the upper, middle and lower layers of the room can be humidified evenly, improving the overall comfort of the room.

[0142] In some embodiments, after adjusting the air outlet state of each humidification zone, a preset time is maintained before adjusting the air outlet state of the next humidification zone, so as to avoid the adjustment component 30 used to adjust the air outlet state of the humidification zone switching too frequently and to avoid damaging the adjustment component 30.

[0143] Optionally, after each of the humidification zones is adjusted to the second state, and after a third preset time interval, the process returns to the step of sequentially adjusting each of the humidification zones to the first state along the extension direction of the humidification pipe 22. The second preset time interval is shorter than the third preset time interval to deliver more humidified air to the upper part of the room, preventing the humidity in the upper part of the room from being low when the humidified air sinks.

[0144] Second Embodiment

[0145] This embodiment is based on the first embodiment described above, and is specifically applied to a cabinet air conditioner. The humidification pipe 22 of the humidification device 20 extends along the length of the air outlet 12, so that the humidification areas on the humidification pipe 22 are evenly distributed at each corresponding position of the air outlet 12. Specifically, the airflow direction of the humidification pipe 22 is from the top of the indoor unit 100 to the bottom of the indoor unit. The adjustment component 30 includes a switching baffle 31, which is movably disposed between two adjacent humidification areas within the humidification pipe. Please refer to... Fig. 12 The step of adjusting the air outlet state of the humidification area according to the humidity value so that at least one of the humidification areas is in a first state includes:

[0146] Step S221: When the humidity value is less than a first preset threshold, adjust all the humidification areas to the first state.

[0147] Step S222: After the first preset time interval, if the humidity value is greater than or equal to the first preset threshold, adjust part of the humidification area to the second state.

[0148] In this embodiment, since the airflow direction of the humidification pipe 22 is from the top of the indoor unit 100 to the bottom of the indoor unit 100, and the extension direction of the humidification pipe 22 is the same as the airflow direction, the humidification area is arranged at intervals from the top to the bottom of the indoor unit 100.

[0149] Because humidified air tends to sink, it can easily lead to higher humidity in the lower floors of an indoor space, while the humidity in the middle or upper floors is lower. This embodiment, combined with the structural design of the humidification pipe 22, controls the humidification amount at different locations by rationally selecting either humidification or full humidification, ensuring uniform humidification across all areas.

[0150] Specifically, a threshold value, such as a first preset threshold, is preset. When the indoor humidity is lower than the first preset threshold, the overall indoor humidity is considered low. In this case, all humidification areas need to be in the first state to humidify the room evenly and quickly. When the indoor humidity is higher than the first preset threshold, due to air sinking, the humidity in the lower floors (below 1 meter) is relatively higher than that in the middle and upper floors. The humidity in the lower floors is considered high, while the humidity in the middle or upper floors has not yet reached the target humidity requirement. If all humidification areas are in the second state, the humidity in the lower floors may become increasingly higher, potentially leading to uncomfortable localized high temperatures. Therefore, in this case, only some humidification areas are allowed to humidify, especially those located in the middle and upper parts of the indoor unit. The humidification areas located at the bottom of the indoor unit are not allowed to humidify, which is the second state. This reduces the amount of humidified air discharged to the lower part of the room while maintaining the discharge of humidified air to the upper part, thereby reducing the humidity difference between different locations in the room and achieving uniform humidification.

[0151] Optionally, after the humidifier 20 is turned on, if the detected humidity value is greater than or equal to the first preset threshold, a portion of the humidification areas are adjusted to the first state, and the humidification areas are those far from the bottom of the indoor unit 100. If all the humidification areas are adjusted to the first state, all the humidification areas supply humidified air to the heat exchange duct 15 of the indoor unit 100. After a first preset time interval, the indoor humidity value is detected again. If the humidity value is greater than or equal to the first preset threshold, a portion of the humidification areas are adjusted to the second state to reduce the humidification amount. The portion of the humidification areas in the second state is the humidification area relatively located at the bottom of the indoor unit 100, while the other humidification areas remain in the first state for continuous humidification.

[0152] This implementation makes the humidification effect of the indoor unit better.

[0153] Third embodiment:

[0154] This embodiment is specifically applied to a cabinet air conditioner. Based on the second embodiment described above, a further refined humidification scheme is proposed, resulting in more uniform indoor humidification and better humidification performance of the indoor unit 100. Specifically, in this embodiment, the humidification pipe 22 of the humidification device 20 is provided with at least two humidification zones, which are distributed from the top of the indoor unit 100 towards the bottom. Please refer to... Fig. 13 The step of adjusting the air outlet state of the humidification area according to the humidity value to make at least one of the humidification areas in a first state includes:

[0155] Step S221: When the humidity value is less than a first preset threshold, adjust all the humidification areas to the first state.

[0156] Step S223: When the humidity value is greater than or equal to the first preset threshold and less than the second preset threshold, at least one humidification area near the top of the indoor unit is adjusted to the first state, wherein the first preset threshold is less than the second preset threshold.

[0157] In other words, this embodiment presets at least two threshold values, such as a first preset threshold and a second preset threshold, where the first preset threshold is less than the second threshold. Specifically, when the indoor humidity level is lower than the first preset threshold, the overall indoor humidity is determined to be low. In this case, all humidification areas need to be fully ventilated, such as all humidification areas being in the first state, to uniformly and quickly humidify the room. When the indoor humidity level is higher than the first preset threshold but lower than the second preset threshold, due to air sinking, the humidity at lower levels is relatively higher than at middle and upper levels. Therefore, the humidity at lower levels is determined to be high, while the humidity at middle or upper levels has not yet reached the target humidity requirement. If all humidification areas are fully ventilated at this time, the humidity at lower levels may become increasingly high, potentially leading to uncomfortable localized high temperatures. If the humidification device is turned off at this time, the upper air may become drier, causing discomfort to the user's face and other areas, thus affecting the user experience. Therefore, at this time, air is selectively discharged from a portion of the humidification area, especially from the humidification vents located in the middle and upper parts of the indoor unit, while the humidification area located in the lower part of the indoor unit does not discharge air. If the humidification area is in the second state, the amount of humidified air discharged to the lower part of the room is reduced, while the discharge of humidified air to the upper part of the room is maintained, thereby reducing the humidity difference between different locations in the room and achieving uniform humidification. When the indoor humidity value is higher than the second preset threshold, it is determined that the humidity in the lower and middle floors is high, while the humidity in the upper floors has not yet reached the target humidity requirement. In this case, only the humidification area in the upper part of the indoor unit discharges air, while the humidification areas located in the lower and middle parts of the indoor unit do not discharge air, in order to reduce the humidity difference between different locations.

[0158] Based on this, the humidification pipe of the humidification device in this embodiment is provided with at least two humidification zones. When the humidity value is greater than or equal to the first preset threshold and less than the second preset threshold, at least one of the humidification zones near the top of the indoor unit 100 is adjusted to the first state, while the other humidification zones remain in the second state. That is, the humidification zone near the top of the indoor unit 100 emits air, while the other humidification zones do not emit air or emit a small amount of air, thus avoiding excessive humidity at the bottom. In this way, the humidity difference between various locations can be reduced.

[0159] It is understood that the number of humidification zones near the top of the indoor unit 100 is determined based on the number of humidification zones. The more humidification zones there are, the higher the accuracy of humidification control.

[0160] This embodiment illustrates some examples, such as a humidification duct containing three humidification zones: a first humidification zone, a second humidification zone, and a third humidification zone, arranged sequentially from the top to the bottom of the indoor unit. The first humidification zone humidifies the air above the indoor unit, the second humidification zone humidifies the air in the middle of the indoor unit, and the third humidification zone humidifies the air at the bottom of the indoor unit. The terms "upper," "middle," and "lower" of the indoor unit are relative. In some embodiments, the upper, middle, and lower parts can be evenly divided based on the length of the indoor unit's air outlet area, or the lengths of the upper, middle, and lower parts can increase sequentially.

[0161] Understandably, after the humidifier is turned on, if the humidity value is detected to be less than a first preset threshold, all humidification areas are adjusted to the first state. If the humidity value is detected to be greater than or equal to the first preset threshold and less than the second preset threshold, the first and second humidification areas are adjusted to the first state, such as airflow from the humidification outlets corresponding to the first and second humidification areas, while the humidification outlet corresponding to the third humidification area remains in the second state, preventing normal airflow from the third humidification area. In this case, humidification occurs in the middle and upper parts corresponding to the air outlet of the indoor unit, while humidification does not occur in the lower part corresponding to the air outlet, preventing high humidity in the lower indoor areas corresponding to the air outlet, while continuous humidification occurs in the upper and middle parts corresponding to the air outlet, reducing the humidity difference between different locations in the room.

[0162] If the humidity value is detected to be greater than the second preset threshold, the first humidification area can be controlled to remain in the first state.

[0163] Optionally, when the humidity value is greater than or equal to the first preset threshold and less than the second preset threshold, after adjusting the first humidification area and the second humidification area to the first state for a third preset time interval, if the humidity value is greater than or equal to the second preset threshold, then the second humidification area is adjusted to the second state.

[0164] That is, during the humidification process described above, the humidity value of the room is detected in real time or at regular intervals. If the humidity value after humidification is greater than or equal to the second preset threshold (and less than the third preset threshold, which is greater than the second preset threshold), the adjustment component corresponding to the second humidification area is controlled to adjust the second humidification area to the second state, keeping only the first humidification area airing out, or keeping the airflow of the first humidification area at its maximum. In this way, by exhausting more humidified air to the upper part of the room, even if the humidified air sinks, the humidity of various places in the room can be balanced, improving the comfort of the indoor environment and improving the effect of humidity regulation.

[0165] Furthermore, this embodiment also presets a third preset threshold. When the humidity value is greater than or equal to the third preset threshold, the humidification device is controlled to stop humidifying. The third preset threshold is greater than the second preset threshold. That is, in this embodiment, when the indoor humidity value is greater than or equal to the third preset threshold, it is determined that the humidity at all locations in the room has reached the preset target humidity. At this time, the indoor humidity requirement is met, and the humidification device is controlled to stop humidifying to avoid excessive humidity affecting comfort.

[0166] Additionally, it should be noted that, in conjunction with references Fig. 1 to Fig. 7 In the control methods of the indoor unit in the above embodiments, the air outlet state of each humidification zone of the indoor unit is adjusted by the adjustment component 30. In some embodiments, the adjustment component 30 includes a switching baffle 31, which is movably disposed between two adjacent humidification zones in the humidification duct 22 to adjust the airflow through the switching baffle 31 in the humidification duct 22.

[0167] The humidification areas are arranged on both sides of the switching baffle 31. The switching baffle 31 adjusts the airflow to the humidification area through which the air flows. Each switching baffle 31 actually adjusts the airflow direction along the humidification pipe 22. The humidification area on the side of the switching baffle 31 away from the air inlet of the humidification pipe 22 is humidified. Therefore, the air outlet state of the humidification area near the air inlet of the humidification pipe 22 or the first humidification area does not need to be adjusted by the switching baffle.

[0168] For example, the humidification pipe 22 sequentially delivers air from the air inlet to the side away from the air inlet. Thus, the airflow direction is from the air inlet to the side away from the air inlet. In an embodiment where the first, second, and third humidification zones are arranged sequentially along the airflow direction, the humidified air, after the humidification device 20 is activated, first passes through the first humidification zone, and then sequentially through the second and third humidification zones. If, after the humidification device 20 is activated, the indoor humidity value is greater than or equal to the second preset threshold, the control terminal does not control any adjustment components 30, and each adjustment component 30 remains in the second position. Thus, the air in the humidification pipe 22 can only flow to the first humidification zone and is discharged from the first humidification zone to the heat exchange duct. In this way, only the humidification port corresponding to the first humidification zone needs to be kept open, while the humidification ports corresponding to other humidification zones are closed or maintain a small airflow. Before the humidification device 20 is activated, the switching baffle 31 is in the second position, adjusting the humidification area to the second state. Only when the switching baffle 31 switches to the first position is the humidification area adjusted to the first state. If it is necessary to adjust the second humidification area to the first state, the switching baffle 31 between the first and second humidification areas is switched, so that humidified air, after passing through the first humidification area, flows to the second humidification area under the action of the switching baffle, and is discharged from the humidification ports of the first and second humidification areas into the heat exchange duct 15. Similarly, if it is necessary to adjust the third humidification area to the first state, the switching baffle 31 between the second and first humidification areas is switched, so that humidified air, after passing through the first humidification area, flows to the second and third humidification areas under the action of the switching baffle 31, and is discharged from the humidification ports of the first, second, and third humidification areas.

[0169] In an optional embodiment, the step of controlling the humidification device 20 of the indoor unit 100 to start includes: obtaining the operating mode of the indoor unit; when the operating mode is the heating mode, starting the ultrasonic humidification module of the humidification device; and when the operating mode is a mode other than the heating mode, using the wet film evaporation module.

[0170] The humidifier in this embodiment includes a wet film evaporation module and an ultrasonic humidification module. When the indoor unit is in heating mode, the ultrasonic humidification module is selected for humidification; when the indoor unit is in other modes besides heating mode, the wet film evaporation module is selected for humidification. Because the ultrasonic humidification module has high humidification efficiency but short service life and high cost, this embodiment uses two humidification modules and different methods for humidification in different modes. This ensures humidification efficiency in heating mode while extending the service life of the ultrasonic humidification module.

[0171] Fourth embodiment:

[0172] This embodiment is based on the first or second embodiment described above. Optionally, the humidification process in this embodiment is applied to the heating mode. Please refer to... Fig. 14 The control method further includes:

[0173] Step S30: Obtain the operating mode of the indoor unit;

[0174] Step S40: When the operating mode is heating mode, determine whether the humidity value of the room where the indoor unit is located is less than or equal to the first preset threshold.

[0175] If so, proceed to step S10.

[0176] Optionally, the control method further includes;

[0177] If not, that is, when the operating mode is heating mode and the humidity value is greater than the first preset threshold, step S50 is executed, and the indoor humidity value is detected again after a preset time interval.

[0178] Step S60: If the humidity value is less than or equal to the first preset threshold, adjust at least one of the humidification areas near the top of the indoor unit to the first state.

[0179] That is, humidification is only activated when the heating mode is started and the humidity level in the room where the indoor unit is located is less than or equal to a first preset threshold. If the heating mode is started but the humidity level in the room where the indoor unit is located is greater than the first preset threshold, humidification is not required. During the heating process, the indoor humidity level is monitored in real time or periodically, and humidification is activated only after the humidity level drops below the first preset threshold. Alternatively, when the operating mode is non-heating mode, humidification is not required, and step S10 is not executed.

[0180] In heating mode, the indoor air tends to be quite dry. Therefore, using the humidification method described above in heating mode can improve the humidification effect. In other modes besides heating mode, the indoor relative humidity is higher, so other humidification methods can be used to reduce wear and tear on the humidification device.

[0181] Optionally, after the humidifier is started, high-level humidification is turned on based on the humidity value being less than or equal to the first preset threshold. For example, all the humidification areas are adjusted to the first state, so that all the humidification areas send humidified air to the heat exchange duct, thereby increasing the indoor humidity value evenly and quickly.

[0182] Optionally, to avoid excessively rapid increases in local humidity levels, leading to high local humidity, the humidity value is checked again after the first preset time interval to see if it is greater than or equal to the first preset threshold. If so, the humidification rate is reduced, and medium-level humidification is switched. For example, some of the humidification areas are adjusted to the second state, such as adjusting the humidification area near the bottom of the casing to the second state, so that this humidification area stops supplying air to the heat exchange duct. Alternatively, if the humidity value is relatively high, such as exceeding the second preset threshold, more humidification areas are adjusted to the second state (low-level humidification), such as keeping only some of the humidification areas near the top of the casing in the first state, while adjusting other humidification areas to the second state.

[0183] It is understood that in this embodiment, when the heating mode is activated and the humidity level in the room where the indoor unit is located is detected to be greater than the first preset threshold, humidification does not need to be activated. During the heating process, the indoor humidity level is monitored in real time or at regular intervals, and humidification is activated only after the humidity level drops below the first preset threshold. When humidification is activated again, the humidification method described above can be used, such as first humidifying at a high setting, then switching to a medium setting, and finally switching to a low setting, until the indoor humidity level reaches the target humidity.

[0184] Alternatively, in a preferred embodiment, after the humidity value drops below a first preset threshold, only low or medium humidification is activated. For example, only at least one of the humidification areas near the top of the indoor unit is adjusted to the first state, so that part of the humidification area sends air to the heat exchange duct. Since the indoor humidity decreases from a high humidity value to a low humidity value, the humidity value will not be too low. If high humidification is activated at this time, the indoor humidity value will rise too quickly, which may easily lead to an excessively high indoor humidity value. Therefore, using low humidification can slow down the increase in humidity value, making the indoor humidity fluctuate slowly and keeping the indoor environment comfortable.

[0185] In one embodiment, if the operating mode is heating mode, and the humidity level in the room where the indoor unit is located is less than or equal to the first preset threshold (e.g., 40%), and after a set period of high-level humidification, if the indoor humidity level is detected to be greater than the first preset threshold, then the system switches to medium-level humidification (e.g., adjusting the third humidification zone to the second state, while the first and second humidification zones remain in the first state). If the indoor humidity level is detected to be less than or equal to the first preset threshold, then high-level humidification is maintained. After a set period of medium-level humidification, if the indoor humidity level is detected to be greater than the first preset threshold... If the humidity level is below the first preset threshold, the humidifier 20 will continue to operate at medium humidification for a set period of time, then be turned off or switched to low humidification (for example, adjusting the second and third humidification zones to the second state, while keeping the first humidification zone in the first state). If the indoor humidity level is detected to be less than or equal to the first preset threshold, the humidifier will switch to high humidification. After operating at medium humidification for a set period of time, if the indoor humidity level is detected to be greater than the first preset threshold, the humidifier 20 will continue to operate at low humidification for a set period of time, then be turned off. If the indoor humidity level is detected to be less than or equal to the first preset threshold, the humidifier will switch back to medium humidification. In this way, the indoor humidity level can be maintained near the first preset threshold.

[0186] In one embodiment, if the operating mode is heating mode and the humidity value of the room where the indoor unit is located is greater than the first preset threshold (e.g., 40%), and after running in heating mode for at least one set time (during which humidification is not turned on), if the indoor humidity value is detected to be less than or equal to the first preset threshold, then switch to low-level humidification; after the aforementioned low-level humidification for one set time, if the indoor humidity value is detected to be greater than the first preset threshold, then continue to maintain low-level humidification for one set time and then turn off the humidifier 20; if the indoor humidity value is detected to be less than or equal to the first preset threshold, then switch to medium-level humidification; after the aforementioned medium-level humidification for one set time, turn off the humidifier 20; or if the indoor humidity value is detected to be less than or equal to the first preset threshold, switch to high-level humidification; after the aforementioned high-level humidification for one set time, turn off the humidifier 20.

[0187] Optionally, in a further embodiment, the control method further includes: when the operating mode is heating mode, determining whether the humidification device 20 meets the start-up conditions; if it does, then performing the step of determining whether the humidity value of the room where the indoor unit is located is less than or equal to the first preset threshold. If it does not meet the conditions, then outputting an abnormal prompt message.

[0188] In this embodiment, a status detection device and a water level detection device are provided inside the air conditioner. The status detection device is used to detect the status of the humidification device 20, which includes an operating state and a non-operating state. The water level detection device is used to detect the water level in the water tank 40 of the humidification device 20.

[0189] The activation conditions include at least one of the following:

[0190] The humidification state is the working state.

[0191] The water level in the water tank 40 is higher than the preset water level.

[0192] That is, the start-up conditions are determined by judging the state of the humidifier 20. If the humidifier 20 is in a working state, it is determined that the start-up conditions are met; if the humidifier 20 is in a non-working state, it is determined that the start-up conditions are not met. If the water level in the water tank 40 reaches the preset water level, the start-up conditions are met; if the water level in the water tank 40 is lower than the preset water level, the start-up conditions are not met.

[0193] Optionally, when the humidifier 20 is in working condition, its input power is on, and / or the second panel 18 of the air conditioner is installed. If the second panel 18 of the air conditioner is installed, the humidifier 20 is determined to be in working condition. When the humidifier 20 is not in working condition, its input power is off, and / or the second panel 18 of the air conditioner is disassembled. If the second panel 18 is disassembled, for safety reasons, the humidifier 20 is controlled to be in non-working condition.

[0194] Optionally, in some embodiments, when the humidification device 20 is in operation, it is also necessary to determine that the water level in the water tank 40 is higher than the preset water level before performing the step of determining whether the humidity value of the room where the indoor unit is located is less than or equal to the first preset threshold.

[0195] Optionally, in this embodiment, the state detection device is a Hall switch.

[0196] Optionally, the abnormal prompts include status abnormality prompts for the humidifier 20 and water level abnormality prompts. When the humidifier 20 is detected to be in a non-operating state, a status abnormality prompt is output, such as indicating that the input power to the humidifier 20 is cut off, or indicating that the second panel 18 of the air conditioner has been removed. When the water level is detected to be below the preset water level, a water shortage prompt is output.

[0197] In this embodiment, before starting the humidifier 20, it is first determined whether the humidifier 20 meets the starting conditions. It is only started after the starting conditions are met, thus preventing the air conditioner from operating in an idle mode if the humidifier 20 does not meet the starting conditions. This protects the humidifier 20 while making the humidity regulation of the air conditioner more precise.

[0198] The present invention also provides an air conditioner, the air conditioner including a processor, a memory, and a control program stored in the memory and executable on the processor, wherein the control program, when executed by the processor, implements various embodiments of the indoor unit control method as described above.

[0199] The present invention also provides a storage medium storing a control program, which, when executed by a processor, implements various embodiments of the indoor unit control method described above.

[0200] The present invention also provides a computer program product, including a control program, which, when executed by a processor, implements various embodiments of the indoor unit control method described above.

[0201] It should be noted that the above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An indoor unit, characterized in that, The indoor unit includes: A housing, wherein an air inlet and an air outlet are provided on the housing; A volute is disposed inside the housing, and a heat exchange air duct connecting the air inlet and the air outlet is formed inside the volute. A humidification device, wherein the humidification device is provided with at least two humidification zones that can communicate with the heat exchange air duct; and At least one adjustment component is provided for adjusting the air outlet state of at least one of the humidification zones, the air outlet state including a first state and a second state, wherein the air outlet volume of the humidification zone in the first state is greater than the air outlet volume in the second state. The humidification device includes a humidifier and a humidification pipe. One end of the humidification pipe is connected to the humidifier, and the other end extends along the axial direction of the volute. The humidification area is disposed on the humidification pipe. Each humidification area includes at least one humidification port, and multiple humidification ports are spaced apart along the extension direction of the humidification pipe. The adjustment component includes a switching baffle, which is movably disposed between two adjacent humidification zones within the humidification pipe or at the humidification port to adjust the airflow through the humidification zones in the humidification pipe.

2. The indoor unit as described in claim 1, characterized in that, The humidification pipe extends from the top of the housing to the bottom of the housing, with the end of the humidification pipe near the top of the housing being the air inlet, and the air outlet located between the top and bottom of the housing.

3. The indoor unit as described in claim 2, characterized in that, The humidifier is located at the bottom of the housing. The humidification device also includes an air supply pipe, one end of which is connected to the humidifier and the other end of which is connected to the air inlet of the humidification pipe.

4. The indoor unit as described in claim 1, characterized in that, The humidification pipe is disposed inside the volute, and the humidification area faces the heat exchange air duct; Alternatively, the humidification pipe is disposed between the volute and the shell, and the volute has a through hole at a position corresponding to the humidification area, and the humidification area is connected to the heat exchange air duct through the through hole.

5. A control method for an indoor unit, characterized in that, The control method operates on the indoor unit as described in any one of claims 1 to 4, and the control method for the indoor unit includes the following steps: Control the humidification device in the indoor unit to start; The control adjustment component adjusts the air outlet state of the humidification zone of the indoor unit so that the air outlet state of at least one of the humidification zones is in a first state, wherein the air outlet state includes the first state and a second state, and the air outlet volume of the humidification zone in the first state is greater than the air outlet volume in the second state.

6. The indoor unit control method as described in claim 5, characterized in that, The step of controlling the adjustment component to adjust the air outlet state of the humidification zone of the indoor unit so that the air outlet state of at least one of the humidification zones is in a first state includes: Obtain the humidity value of the room where the indoor unit is located; Adjust the airflow state of the humidification zone according to the humidity value so that at least one of the humidification zones is in a first state.

7. The indoor unit control method as described in claim 6, characterized in that, The humidification pipe of the humidification device extends from the top to the bottom of the indoor unit. The adjustment component includes a switching baffle, which is movably disposed between two adjacent humidification zones within the humidification pipe. Each humidification zone includes at least one humidification outlet. The step of adjusting the air outlet state of the humidification zone according to the humidity value so that at least one humidification zone is in a first state includes: When the humidity value is less than a first preset threshold, all the humidification areas are adjusted to the first state.

8. The indoor unit control method as described in claim 7, characterized in that, After the step of adjusting all the humidification zones to the first state, the method further includes: After a first preset time interval, if the humidity value is greater than or equal to the first preset threshold, a portion of the humidification area will be adjusted to the second state.

9. The indoor unit control method as described in claim 7, characterized in that, The humidification zones are distributed from the top to the bottom of the indoor unit. The step of adjusting the airflow state of the humidification zones according to the humidity value to ensure that at least one of the humidification zones is in a first state further includes: When the humidity value is greater than or equal to the first preset threshold and less than the second preset threshold, at least one of the humidification areas near the top of the indoor unit is adjusted to the first state, wherein the first preset threshold is less than the second preset threshold.

10. The indoor unit control method as described in claim 5, characterized in that, The humidification device has at least two humidification zones along its extending direction in its humidification duct. The step of controlling the adjustment component to adjust the air outlet state of the humidification zone of the indoor unit so that the air outlet state of at least one of the humidification zones is in a first state includes: Each of the humidification zones is sequentially adjusted to the first state along the extension direction of the humidification pipe; After the second preset time interval, each of the humidification zones is adjusted to the second state in a direction opposite to the extension direction.

11. The indoor unit control method according to any one of claims 5-8 and 10, characterized in that, The control method further includes: Obtain the operating mode of the indoor unit; When the operating mode is heating mode and the humidity value in the room where the indoor unit is located is less than or equal to a first preset threshold, the step of controlling the humidification device in the indoor unit to start is executed.

12. The indoor unit control method as described in claim 5, characterized in that, The control method further includes; If the indoor unit is in heating mode and the indoor humidity is greater than a first preset threshold, the indoor humidity will be detected after a preset time interval. If the humidity value is less than or equal to the first preset threshold, then at least one of the humidification areas near the top of the indoor unit will be adjusted to the first state.

13. An air conditioner, characterized in that, The air conditioner includes a processor, a memory, and a control program stored in the memory and executable on the processor. When executed by the processor, the control program implements the steps of the indoor unit control method as described in any one of claims 5 to 12.

14. A storage medium, characterized in that, The storage medium stores a control program, which, when executed by a processor, implements the steps of the indoor unit control method as described in any one of claims 5 to 12.

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