Control method of indoor unit, air conditioner and storage medium

Abstract

This application discloses a control method for an indoor unit, an air conditioner, and a storage medium, relating to the field of air conditioning technology. The indoor unit includes a front air outlet, a lower air outlet, and an air outlet assembly. The air outlet assembly is configured to adjust the airflow from the front and lower air outlets. The control method for the indoor unit includes: responding to a shutdown command of the indoor unit, controlling the air outlet assembly to close the front air outlet and open the lower air outlet; or, controlling the air outlet assembly to close both the front and lower air outlets. This application aims to reduce the amount of dust and other contaminants entering the indoor unit from the air outlets after the indoor unit has stopped.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to indoor unit control methods, air conditioners, and storage media. Background Technology

[0002] During operation, air conditioners and other environmental control equipment have an indoor heat exchanger in the indoor unit that is in a heat exchange state. The indoor fan drives indoor air into the air duct of the indoor unit to exchange heat with the indoor heat exchanger before returning it to the room, thereby regulating the indoor environment. The indoor unit is equipped with an air outlet assembly to regulate the airflow.

[0003] In related technologies, when indoor units such as ducted air conditioners are equipped with front and bottom air outlets, the air outlets remain open after the unit is stopped, which can lead to a large amount of dust entering the unit from the air outlets. Summary of the Invention

[0004] The main purpose of this application is to provide a control method for an indoor unit, an air conditioner, and a storage medium, which aims to reduce the amount of dust and other contaminants entering the interior of the indoor unit from the air outlet after the indoor unit is turned off.

[0005] To achieve the above objectives, this application proposes a control method for an indoor unit, the indoor unit including a front air outlet, a lower air outlet, and an air outlet assembly, the air outlet assembly being configured to adjust the airflow from the front air outlet and the lower air outlet, and the control method for the indoor unit including: In response to a shutdown command from the indoor unit, the air outlet assembly is controlled to close the front air outlet and open the lower air outlet, wherein the area of ​​the front air outlet is larger than the area of ​​the lower air outlet; or, the air outlet assembly is controlled to close both the front air outlet and the lower air outlet.

[0006] In one embodiment, the air outlet assembly includes a first switch door, a second switch door, and a third switch door. The front air outlet includes a first air outlet area and a second air outlet area. The first switch door is configured to adjust the first air outlet area, the second switch door is configured to adjust the second air outlet area, and the third switch door is configured to adjust the airflow from the lower air outlet. The step of controlling the air outlet assembly to close the front air outlet and the lower air outlet includes: Control the first switch door to close the first air outlet area, control the lower air outlet to close the second air outlet area, and control the third switch door to close the lower air outlet.

[0007] In one embodiment, the front air outlet includes a first air outlet area and a second air outlet area, and the air outlet assembly includes a fourth switch door and a fifth switch door. The fourth switch door is configured to adjust the air outlet of the first air outlet area, and the fifth switch door is configured to adjust the air outlet of the second air outlet area and the lower air outlet. The step of controlling the air outlet assembly to close the front air outlet and open the lower air outlet includes: The fourth switch door is controlled to close the first air outlet area, and the fifth switch door is controlled to close the second air outlet area and open the lower air outlet.

[0008] In one embodiment, the indoor unit control method further includes: In response to the shutdown command of the indoor unit, status information is obtained, including whether the front air outlet and the lower air outlet are connected to the corresponding external air outlet panel; If neither the front air outlet nor the lower air outlet is connected to a corresponding external air outlet panel, the step of controlling the air outlet assembly to close the front air outlet and open the lower air outlet is executed; or, the step of controlling the air outlet assembly to close the front air outlet and the lower air outlet is executed. When at least one of the front air outlet and the lower air outlet is connected to a corresponding external air outlet panel, the air outlet assembly and the external air outlet panel are controlled to operate, or the external air outlet panel is controlled to operate, to close the front air outlet and the lower air outlet.

[0009] In one embodiment, the step of controlling the operation of the air outlet assembly and the external air outlet panel, or controlling the operation of the external air outlet panel to close the front air outlet and the lower air outlet when at least one of the front air outlet and the lower air outlet is connected to a corresponding external air outlet panel, includes: When the front air outlet is connected to an external air outlet panel and the lower air outlet is not connected to an external air outlet panel, control the air outlet assembly to operate to close the lower air outlet, and control the external air outlet panel connected to the front air outlet to close the front air outlet. When the front air outlet is not connected to an external air outlet panel and the lower air outlet is connected to an external air outlet panel, the air outlet assembly is controlled to operate to close the front air outlet and the external air outlet panel connected to the lower air outlet is controlled to close the lower air outlet. When the front air outlet is connected to an external air outlet panel and the lower air outlet is connected to an external air outlet panel, control the external air outlet panel connected to the front air outlet to close the front air outlet, and control the external air outlet panel connected to the lower air outlet to close the lower air outlet.

[0010] In one embodiment, the air outlet assembly includes a first switch door, a second switch door, and a third switch door, the front air outlet includes a first air outlet area and a second air outlet area, the first switch door is configured to adjust the first air outlet area, the second switch door is configured to adjust the second air outlet area, and the third switch door is configured to adjust the air outlet of the lower air outlet. The step of controlling the operation of the air outlet assembly to close the lower air outlet includes: controlling the third switch door to close the lower air outlet; The step of controlling the operation of the air outlet assembly to close the front air outlet includes: controlling the first switch door to close the first air outlet area, and controlling the second switch door to close the second air outlet area.

[0011] In one embodiment, the front air outlet includes a first air outlet area and a second air outlet area, and the air outlet assembly includes a fourth switch door and a fifth switch door. The fourth switch door is configured to adjust the air outlet of the first air outlet area, and the fifth switch door is configured to adjust the air outlet of the second air outlet area and the lower air outlet. The step of controlling the operation of the air outlet assembly to close the lower air outlet includes: The fifth switch door is controlled to close the lower air outlet and open the second air outlet area; The step of controlling the operation of the air outlet assembly to close the front air outlet includes: The fourth switch door is controlled to close the first air outlet area, and the fifth switch door is controlled to close the second air outlet area and open the lower air outlet.

[0012] In one embodiment, the control method for the indoor unit includes: In response to the shutdown command, the indoor fan in the indoor unit is shut down and the step of obtaining status information is executed. In one embodiment, in response to the shutdown command, the indoor fan is controlled to remain on, and the step of acquiring status information is performed; In one embodiment, in response to the shutdown command, after both the front air outlet and the lower air outlet are closed, the indoor fan is controlled to turn on so that the water in the water tray inside the indoor unit is drained away from the drain outlet of the water tray.

[0013] In one embodiment, the control method for the indoor unit includes: When the indoor unit is in cooling mode and both the front air outlet and the lower air outlet are in the air-discharging state, the environmental state parameters of the indoor space regulated by the indoor unit are obtained. When the environmental state parameters meet the preset conditions, the air outlet assembly is controlled to close one of the front air outlet and the lower air outlet; The preset condition indicates that there is a risk of condensation in the air outlet area of ​​the indoor unit.

[0014] In one embodiment, the preset conditions include an ambient humidity greater than a preset humidity for a first preset duration; In one embodiment, the area of ​​the front air outlet is larger than the area of ​​the lower air outlet, and the step of controlling the air outlet assembly to close one of the front air outlet and the lower air outlet includes: Control the operation of the air outlet assembly to close the lower air outlet and keep the front air outlet open.

[0015] In one embodiment, after the step of obtaining the environmental state parameters of the indoor space regulated by the indoor unit, the method further includes: When the environmental state parameters meet the preset conditions, obtain state information, including whether the front air outlet and the lower air outlet are connected to the corresponding external air outlet panel. When at least one of the front air outlet and the lower air outlet is connected to a corresponding external air outlet panel, the air outlet assembly and the external air outlet panel are controlled to operate to close one of the front air outlet and the lower air outlet, or the external air outlet panel is controlled to operate to close one of the front air outlet and the lower air outlet. When neither the front air outlet nor the lower air outlet is connected to an external air outlet panel, the step of controlling the air outlet assembly to close one of the front air outlet and the lower air outlet is performed.

[0016] In one embodiment, the step of controlling the air outlet assembly and the external air outlet panel to operate to close one of the front air outlet and the lower air outlet, or controlling the external air outlet panel to operate to close one of the front air outlet and the lower air outlet, includes: When the front air outlet is connected to an external air outlet panel and the lower air outlet is not connected to an external air outlet panel, control the air outlet assembly to close the lower air outlet and keep the front air outlet open. When the front air outlet is not connected to an external air outlet panel and the lower air outlet is connected to an external air outlet panel, the air outlet assembly is controlled to operate to close the lower air outlet while keeping the front air outlet open, and the external air outlet panel connected to the lower air outlet is controlled to close the lower air outlet. When the front air outlet is connected to an external air outlet panel and the lower air outlet is connected to an external air outlet panel, control the air outlet assembly to close the lower air outlet while keeping the front air outlet open, and control the external air outlet panel connected to the lower air outlet to close the lower air outlet.

[0017] In one embodiment, the air outlet assembly includes a first switch door, a second switch door, and a third switch door, the front air outlet includes a first air outlet area and a second air outlet area, the first switch door is configured to adjust the first air outlet area, the second switch door is configured to adjust the second air outlet area, and the third switch door is configured to adjust the air outlet of the lower air outlet. The step of controlling the operation of the air outlet assembly to close the lower air outlet and keep the front air outlet open includes: controlling the first switch door to open the first air outlet area, controlling the second switch door to open the second air outlet area, and controlling the third switch door to close the lower air outlet. Alternatively, the front air outlet includes a first air outlet area and a second air outlet area, and the air outlet assembly includes a fourth switch door and a fifth switch door. The fourth switch door is configured to adjust the air outlet of the first air outlet area, and the fifth switch door is configured to adjust the air outlet of the second air outlet area and the lower air outlet. The step of controlling the operation of the air outlet assembly to close the lower air outlet and keep the front air outlet open includes: The fourth switch door is controlled to open the first air outlet area, and the fifth switch door is controlled to open the second air outlet area and close the lower air outlet.

[0018] In addition, to achieve the above objectives, this application also proposes an air conditioner, which includes a control device and an indoor unit connected to the control device, wherein the indoor unit includes a front air outlet, a lower air outlet, and an air outlet assembly. The control device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the control method for the indoor unit as described in any of the preceding claims.

[0019] In one embodiment, the air outlet assembly includes a first switch door, a second switch door, and a third switch door, the front air outlet includes a first air outlet area and a second air outlet area, the first switch door is configured to adjust the first air outlet area, the second switch door is configured to adjust the second air outlet area, and the third switch door is configured to adjust the air outlet of the lower air outlet. In one embodiment, the front air outlet includes a first air outlet area and a second air outlet area, and the air outlet assembly includes a fourth switch door and a fifth switch door. The fourth switch door is configured to adjust the air outlet of the first air outlet area, and the fifth switch door is configured to adjust the air outlet of the second air outlet area and the lower air outlet.

[0020] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the indoor unit control method described above.

[0021] One or more technical solutions proposed in this application have at least the following technical effects: based on an indoor unit with a front air outlet and a bottom air outlet, in response to a shutdown command, closing the larger front air outlet or closing both the front and bottom air outlets can effectively reduce the flow area between the inside and outside of the indoor unit after the indoor unit is shut down, thereby reducing the amount of dust and other contaminants entering the indoor unit from the air outlet after the indoor unit is shut down. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the indoor unit of the air conditioner in one embodiment of the present application, and a schematic diagram of the air outlet component achieving different air outlet states in different positions; Figure 2 for Figure 1 A schematic diagram showing the different air outlet states achieved by the indoor unit's air outlet assembly in different positions; Figure 3 This is a schematic diagram of the structure of the indoor unit of the air conditioner in another embodiment of the present application, and a schematic diagram of the air outlet component achieving different air outlet states in different positions; Figure 4 This is a schematic diagram of the structure of the indoor unit and the external air outlet panel when installed together in one embodiment of the air conditioner of this application; Figure 5 This is a schematic diagram of the equipment structure of the hardware operating environment involved in the control method of the indoor unit in the embodiments of this application; Figure 6 This is a flowchart illustrating an embodiment of the control method for the indoor unit of this application. Figure 7 This is a flowchart illustrating the second embodiment of the control method for the indoor unit of this application.

[0025] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0027] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0028] The main solution of this application embodiment is: a control method based on an indoor unit, the indoor unit including a front air outlet, a lower air outlet and an air outlet assembly, the air outlet assembly being configured to adjust the airflow from the front air outlet and the lower air outlet, the control method of the indoor unit including: in response to a stop command of the indoor unit, controlling the air outlet assembly to close the front air outlet and open the lower air outlet, the area of ​​the front air outlet being larger than the area of ​​the lower air outlet; or, controlling the air outlet assembly to close the front air outlet and the lower air outlet.

[0029] In this embodiment, for ease of description, the indoor unit will be used as the subject of the explanation.

[0030] Because indoor units such as ducted air conditioners are equipped with front and bottom air outlets, and these outlets remain open after the unit is stopped, a large amount of dust and other contaminants can enter the unit through the outlets.

[0031] This application provides the above solution, which is based on an indoor unit with a front air outlet and a bottom air outlet. In response to a shutdown command, the larger front air outlet is closed or both the front and bottom air outlets are closed. This can effectively reduce the airflow area between the inside and outside of the indoor unit after it is shut down, thereby reducing the amount of dust and other contaminants entering the indoor unit from the air outlets after the unit is shut down.

[0032] This application provides an air conditioner configured to regulate the air in an indoor environment.

[0033] In this embodiment, refer to Figures 1 to 5 The air conditioner includes an indoor unit 200 and an outdoor unit, with the indoor unit 200 including at least two air outlets. In this embodiment, the different air outlets have different orientations and different air resistances. The outdoor unit has a compressor 400.

[0034] In this embodiment, the indoor unit 200 is a ducted air conditioner. The installation height of the indoor unit 200 is higher than the height of a person.

[0035] The indoor unit 200 is equipped with an indoor air duct, and at least two air outlets are connected to the indoor air duct. An indoor heat exchanger 21 and an indoor fan 22 are installed in the indoor air duct. The indoor fan 22 can drive indoor air into the indoor air duct to exchange heat with the indoor heat exchanger 21 and then send it into the room from at least one air outlet.

[0036] In this embodiment, at least two air outlets include a front air outlet 201 located on the side and a lower air outlet 202 located on the bottom. The indoor unit 200 includes a housing, which includes a base plate and a side plate connected to the base plate. The base plate has the lower air outlet 202, and the side plate has the front air outlet 201. Both the lower air outlet 202 and the front air outlet 201 are connected to the indoor air duct.

[0037] The base plate is the plate located at the bottom of the casing when the indoor unit 200 is installed in the indoor space, and the side plate is the plate on the casing adjacent to the base plate. When the indoor unit 200 is installed in the indoor space, the angle between the side plate and the wall of the indoor space (e.g., 0 degrees) is smaller than the angle between the base plate and the wall of the indoor space (e.g., 90 degrees).

[0038] The air outlet surface of the lower air outlet 202 intersects with the air outlet surface of the front air outlet 201. Without the guidance of an air guiding component, the air outlet direction of the lower air outlet 202 is downward (vertically downward or at an angle less than or equal to 45° with the vertical direction), and the air outlet direction of the front air outlet 201 is horizontal (along the horizontal direction or at an angle less than or equal to 45° with the horizontal direction). In this embodiment, the air outlet surface of the lower air outlet 202 is perpendicular to the air outlet surface of the front air outlet 201.

[0039] Without the assistance of air guiding components during the operation of the indoor fan 22, the air resistance when the air in the indoor duct exits from the lower air outlet 202 is greater than the air resistance when the air in the indoor duct exits from the front air outlet 201. In other words, when the indoor fan 22 rotates at the same speed, the air volume exiting from the lower air outlet 202 is less than the air volume exiting from the front air outlet 201. In this embodiment, the area of ​​the lower air outlet 202 is smaller than the area of ​​the front air outlet 201, and the angle between the air outlet direction of the indoor fan 22 and the air outlet surface of the front air outlet 201 is greater than the angle between the air outlet direction and the air outlet surface of the lower air outlet 202. That is, the air outlet direction of the indoor fan 22 is towards the front air outlet 201 and not towards the lower air outlet 202.

[0040] When the indoor unit 200 discharges air through the lower air outlet 202, the discharged air can not only regulate the air temperature of the indoor space, but also regulate the temperature of the indoor space's enclosure structure.

[0041] In other embodiments, at least two air outlets may be located on the side of the indoor unit 200, or the air outlets may have the same air outlet direction.

[0042] In this embodiment, combined with Figures 2 to 5 The indoor unit 200 also includes an air outlet assembly 23, which is configured to rotate to adjust the air outlet state (e.g., front air outlet 201 and lower air outlet 202), and can adjust the opening and closing of the air outlet and / or adjust the air volume.

[0043] The air outlet assembly 23 may include one or more adjustment components. When the air outlet assembly 23 includes more than one adjustment component, the adjustment components and air outlets can be configured in a one-to-one correspondence. Alternatively, different air outlets may each be configured with more than one air outlet assembly 23; or, some air outlets may be configured with more than one adjustment component, while other air outlets may be configured with one adjustment component. For example, the front air outlet 201 may be configured with more than one adjustment component, and the lower air outlet 202 may be configured with one adjustment component, or the lower air outlet 202 may be configured with more than one adjustment component, and the front air outlet 201 may be configured with one adjustment component.

[0044] In this embodiment, an air outlet assembly 23 is provided in the indoor air duct, with at least two air outlets including a front air outlet 201 and a lower air outlet 202. The air outlet assembly 23 can be changed in different positions to enable the lower air outlet 202 and the front air outlet 201 to cooperate in different air outlet states: Reference Figure 1 (a) Figure 2 (c) Figure 2 (d) Figure 3 (b) Figure 3 (e) The arrow indicates the airflow direction. When the air outlet assembly 23 is in the first position, the front air outlet 201 is open, the lower air outlet 202 is closed, and the indoor unit 200 is in the front air outlet state. Reference Figure 1 (b) and Figure 3 (a) The arrow indicates the airflow direction. When the air outlet assembly 23 is in the second position, the front air outlet 201 is closed, the lower air outlet 202 is open, and the indoor unit 200 is in the lower air outlet state. Reference Figure 1 (c) Figure 2 (a) Figure 2 (b) Figure 3 (c) Figure 3 (d) Figure 3 (f), the arrow indicates the airflow direction. When the air outlet assembly 23 is in the third position, both the front air outlet 201 and the lower air outlet 202 are open. Reference Figure 1 (d) When the air outlet assembly 23 is in the fourth position, both the front air outlet 201 and the lower air outlet 202 are closed.

[0045] The opening of the front air outlet 201 may include fully opening or partially opening the front air outlet 201, and the opening of the lower air outlet 202 may include fully opening or partially opening the lower air outlet 202. Figure 1 The image shows the case where all windows are open. Figure 2 The image shows the front air vent 201 partially open.

[0046] In one implementation, combined with Figure 1 and Figure 2 The air outlet assembly 23 includes a first switch door 231, a second switch door 232, and a third switch door 233. The first switch door 231, the second switch door 232, and the third switch door 233 are all located inside the indoor unit 200. The front air outlet 201 includes a first air outlet area and a second air outlet area. The first switch door 231 is configured to adjust the air outlet of the first air outlet area, the second switch door 232 is configured to adjust the air outlet of the second air outlet area, and the third switch door 233 is configured to adjust the air outlet of the lower air outlet 202. The third switch door 233 is configured to rotate between the second air outlet area and the lower air outlet 202.

[0047] In this embodiment, the first air outlet area is the upper air outlet area away from the lower air outlet 202, and the second air outlet area is the lower air outlet area close to the lower air outlet 202. The first switch door 231 is rotatably installed on the upper side of the front air outlet 201, and can adjust the air volume of the upper air outlet area. The second switch door 232 is rotatably installed between the first air outlet area and the second air outlet area, and the pivot of the second switch door 232 divides the front air outlet 201 into the first air outlet area and the second air outlet area. The third switch door 233 is rotatably installed at the adjacent position between the lower air outlet 202 and the front air outlet 201. In some other implementations, the adjacent position between the lower air outlet 202 and the front air outlet 201 is located on the first side of the lower air outlet 202, and the third switch door 233 is rotatably installed on the second side of the lower air outlet 202. The first side and the second side are arranged opposite to each other, and the second switch door 202 can be installed at the adjacent position between the lower air outlet 202 and the front air outlet 201.

[0048] In this embodiment, the first switch door 231 is configured to switch between a first position and a second position. When the first switch door 231 is in the first position, the first air outlet area is closed; when the first switch door 231 is in the second position, the first air outlet area is open. In this embodiment, when the first switch door 231 is in the second position, it abuts against the top plate and / or the extension direction of the first switch door 231 is the same as the airflow direction of the indoor fan 22. When the first switch door 231 is in the first position, its end overlaps with the end of the second switch door 232 where the pivot is located, thereby closing the first air outlet area.

[0049] In this embodiment, the second door 232 is configured to switch between a third position and a fourth position. When the second door 232 is in the third position, the second air outlet area is closed; when the second door 232 is in the fourth position, the second air outlet area is open. In this embodiment, when the second door 232 is in the third position, the movable end of the second door 232 overlaps with a structural member on the lower edge of the second air outlet area to close the second air outlet area. When the second door 232 is in the fourth position, the extension direction of the second door 232 is the same as the airflow direction of the indoor fan 22.

[0050] In this embodiment, the third switch door 233 is configured to switch between a fifth position, a sixth position, and a seventh position. When the third switch door 233 is in the fifth position, the second air outlet area is closed and the lower air outlet 202 is opened; when the third switch door 233 is in the sixth position, the second air outlet area is opened and the lower air outlet 202 is opened; when the third switch door 233 is in the seventh position, the second air outlet area is opened and the lower air outlet 202 is closed. When the third switch door 233 is in the seventh position, it abuts against the structural member on the bottom plate located at the edge of the lower air outlet 202. When the second switch door 232 is in the third position and the third switch door 233 is in the fifth position, the third switch door 233 is located inside the second switch door 232, wherein the movable end of the third switch door 233 abuts against one end of the second switch door 232 where a rotating shaft is provided.

[0051] like Figure 1 As shown in (a), a first position includes the first switch door 231 being in the second position, the second switch door 232 being in the fourth position, and the third switch door 233 being in the seventh position. At this time, the first air outlet area is open, the second air outlet area is open, and the lower air outlet 202 is closed. All the airflow blown out by the indoor fan 22 is blown into the room from the front air outlet 201. Figure 2 As shown in (d), a first position state includes the first switch door 231 being in the second position, the second switch door 232 being in the third position, and the third switch door 233 being in the seventh position. At this time, the first switch door 231 opens the first air outlet area, the second switch door 232 closes the second air outlet area, and the third switch door 233 closes the lower air outlet 202. Figure 2 As shown in (c), a first position state includes the first switch door 231 being in the first position, the second switch door 232 being in the fourth position, and the third switch door 233 being in the seventh position. At this time, the first switch door 231 closes the first air outlet area, the second switch door 232 opens the second air outlet area, and the third switch door 233 closes the lower air outlet 202.

[0052] like Figure 1As shown in (b), the second position states include the first switch door 231 being in the first position, the second switch door 232 being in the third position, and the third switch door 233 being in the fifth position. At this time, the first air outlet area is closed, the second air outlet area is closed, and the lower air outlet 202 is open, and all the airflow blown out by the indoor fan 22 is blown into the room from the lower air outlet 202.

[0053] like Figure 1 As shown in (c), the third position includes the first switch door 231 being in the second position, the second switch door 232 being in the fourth position, and the third switch door 233 being in the sixth position. At this time, the first air outlet area is open, the second air outlet area is open, and the lower air outlet 202 is open. Part of the airflow blown by the indoor fan 22 enters the room through the lower air outlet 202, and the other part enters the room through the front air outlet 201. Figure 2 As shown in (a), a third position includes the first switch door 231 being in the second position, the second switch door 232 being in the third position, and the third switch door 233 being in the sixth position. At this time, the first switch door 231 opens the first air outlet area, the second switch door 232 closes the second air outlet area, and the third switch door 233 opens the lower air outlet 202. For example... Figure 2 As shown in (b), a third position state includes the first switch door 231 being in the first position, the second switch door 232 being in the fourth position, and the third switch door 233 being in the sixth position. At this time, the first switch door 231 closes the first air outlet area, the second switch door 232 opens the second air outlet area, and the third switch door 233 opens the lower air outlet 202.

[0054] Therefore, by changing the position of the air outlet component 23, the indoor unit 200 can switch between front air outlet state, bottom air outlet state, and dual air outlet state.

[0055] In another implementation, refer to Figure 3 and Figure 4 The air outlet assembly 23 includes a fourth switch door 234 and a fifth switch door 235, both of which are located inside the indoor unit 200. The side air outlet 201 includes a first air outlet area and a second air outlet area. The fourth switch door 234 is configured to adjust the air volume of the first air outlet area, and the fifth switch door 235 is configured to adjust the air volume of the second air outlet area and the lower air outlet 202. The fifth switch door 235 is configured to rotate between the second air outlet area and the lower air outlet 202.

[0056] In this embodiment, the first air outlet area is the upper air outlet area away from the lower air outlet 202, the second air outlet area is the lower air outlet area close to the lower air outlet 202, the fourth switch door 234 is rotatably installed on the upper side of the side air outlet 201, and can adjust the air volume of the upper air outlet area, and the fifth switch door 235 is rotatably installed at the adjacent position between the lower air outlet 202 and the side air outlet 201, and when the fifth switch door 235 rotates, it can simultaneously adjust the air volume of the lower air outlet area and the lower air outlet 202.

[0057] The fourth switch door 234 is configured to switch between a first preset position and a second preset position. When the fourth switch door 234 is in the first preset position, the first air outlet area is closed; when the fourth switch door 234 is in the second preset position, the first air outlet area is opened. In this embodiment, when the fourth switch door 234 is in the fourth position, it abuts against the top plate and / or the extension direction of the fourth switch door 234 is the same as the airflow direction of the indoor fan 22.

[0058] The fifth switch door 235 is configured to switch between a third preset position, a fourth preset position, and a fifth preset position. When the fifth switch door 235 is in the third preset position, the second air outlet area is closed and the lower air outlet 202 is opened. When the fifth switch door 235 is in the fourth preset position, the second air outlet area is opened and the lower air outlet 202 is opened. When the fifth switch door 235 is in the fifth preset position, the second air outlet area is opened and the lower air outlet 202 is closed. The fifth switch door 235 abuts against the base plate when it is in the fifth preset position. When the fifth switch door 235 is in the third preset position and the fourth switch door 234 is in the first preset position, the first overlapping part of the fifth switch door 235 overlaps with the second overlapping part of the fourth switch door 234. The second overlapping part is located inside the first overlapping part, where "inner side" refers to the side facing the interior of the indoor unit 200.

[0059] like Figure 3 As shown in (b), a first position state includes the fourth switch door 234 being in the second preset position and the fifth switch door 235 being in the fifth preset position. At this time, the fourth switch door 234 opens the first air outlet area, and the fifth switch door 235 opens the second air outlet area and closes the lower air outlet 202. Figure 3 As shown in (e), a first position state includes the fourth switch door 234 being in the first preset position and the fifth switch door 235 being in the fifth preset position. At this time, the fourth switch door 234 closes the first air outlet area, and the fifth switch door 235 opens the second air outlet area and closes the lower air outlet 202.

[0060] like Figure 3As shown in (a), the second position state includes the fourth switch door 234 being in the first preset position and the fifth switch door 235 being in the third preset position. At this time, the fourth switch door 234 closes the first air outlet area, and the fifth switch door 235 closes the second air outlet area and opens the lower air outlet 202.

[0061] like Figure 3 As shown in (d), a third position state includes the fourth switch door 234 being in the second preset position and the fifth switch door 235 being in the fourth preset position. At this time, the fourth switch door 234 opens the first air outlet area, and the fifth switch door 235 opens the second air outlet area and opens the lower air outlet 202. Figure 3 As shown in (c), a third position state includes the fourth switch door 234 being in the second preset position and the fifth switch door 235 being in the third preset position. At this time, the fourth switch door 234 opens the first air outlet area, and the fifth switch door 235 closes the second air outlet area and opens the lower air outlet 202. Figure 3 As shown in (f), a third position state includes the fourth switch door 234 being in the first preset position and the fifth switch door 235 being in the fourth preset position. At this time, the fourth switch door 234 closes the first air outlet area, and the fifth switch door 235 opens the second air outlet area and opens the lower air outlet 202.

[0062] Therefore, by changing the position of the air outlet component 23, the indoor unit 200 can switch between front air outlet state, bottom air outlet state, and dual air outlet state.

[0063] In one embodiment, different adjustment components (such as the different opening and closing doors mentioned above) in the air outlet assembly 23 are driven by different drive motors, such as stepper motors. The control device 100 can control the rotation angle of the corresponding opening and closing door by inputting pulse current to the drive motor. The rotation ratios of the drive motors for different adjustment components are the same; that is, when the control device 100 inputs the same number of pulse currents to the drive motors of different adjustment components, the rotation angle of each adjustment component is the same.

[0064] In one embodiment, combined with Figures 1 to 4 At least two air outlets include a first air outlet, such as the front air outlet 201 mentioned above. The first air outlet may be provided with a first connecting part, which is configured to be connected to the first external air outlet panel 27.

[0065] The first external air outlet panel 27 has a first ventilation hole connected to the first air outlet channel at a position corresponding to the first air outlet. The first external air outlet panel 27 is located outside the indoor air duct. When the first external air outlet panel 27 is connected to the first air outlet, it forms the first air outlet channel, and the air from the first air outlet flows into the indoor space after passing through the first air outlet channel; when the first external air outlet panel 27 is not connected to the first air outlet, the air from the first air outlet is directly blown into the indoor space.

[0066] The first external air outlet panel 27 is equipped with a first air guide component at the first ventilation hole, which can adjust the air outlet state. The first air guide component may include an air guide grille or an air guide plate, etc.

[0067] The first external air outlet panel 27 can be an electronic control component. When the first external air outlet panel 27 is connected to the first air outlet, it is in communication connection with the control device 100. The control device 100 can control the operation of the first external air outlet panel 27.

[0068] The first external air outlet panel 27 can open or close the first air outlet or adjust the air outlet direction in response to the control command of the control device 100.

[0069] In one embodiment, combined with Figures 1 to 4 At least two air outlets, including a second air outlet, such as the lower air outlet 202 mentioned above, may be provided with a second connecting part, which is configured to connect to the second external air outlet panel 24.

[0070] The second external air outlet panel 24 has a second ventilation hole connected to the second air outlet at a position corresponding to the second air outlet. The second external air outlet panel 24 is located outside the indoor air duct. When the second external air outlet panel 24 is connected to the second air outlet, it forms a second air outlet channel, and the airflow from the second air outlet is blown into the indoor space after passing through the second air outlet channel; when the second external air outlet panel 24 is not connected to the second air outlet, the airflow from the second air outlet is blown directly into the indoor space.

[0071] A second air guide assembly is provided on the second ventilation hole on the second external air outlet panel 24, which can adjust the air outlet state of the second air outlet. The second air guide assembly may include an air guide grille or an air guide plate, etc.

[0072] The second external air outlet panel 24 can be an electronic control component. When the second external air outlet panel 24 is connected to the second air outlet, it is in communication connection with the control device 100. The control device 100 can control the operation of the second external air outlet panel 24.

[0073] The second external air outlet panel 24 can open or close the second air outlet or adjust the air outlet direction in response to the control command of the control device 100.

[0074] In one embodiment, reference is made to Figures 1 to 4The indoor unit 200 may also be provided with a return air vent 203 on its casing, through which indoor air can enter the indoor air duct of the indoor unit 200 under the drive of the indoor fan 22. The indoor unit 200 may also include a third panel on the outside of the casing, on which a third clearance hole may be provided corresponding to the return air vent 203, through which indoor air can enter the return air vent 203.

[0075] In one embodiment, the environmental control system may include more than one indoor unit 200, with different indoor units 200 located in different indoor spaces. For example, the environmental control system may be a multi-split air conditioner.

[0076] In one embodiment, the environmental control system includes a refrigerant circulation loop, which includes the aforementioned indoor unit 200, throttling device, outdoor heat exchanger, reversing assembly, and compressor, with the compressor connected to the indoor unit 200.

[0077] The compressor's exhaust port, compressor's return port, outdoor heat exchanger, and indoor heat exchanger 21 are all connected to the reversing assembly. The reversing assembly has a first operating state and a second operating state. When the reversing assembly is in the first operating state, the exhaust port is connected to the outdoor heat exchanger and the return port is connected to the indoor heat exchanger 21. When the reversing assembly is in the second operating state, the exhaust port is connected to the indoor heat exchanger 21 and the return port is connected to the outdoor heat exchanger.

[0078] Reference Figure 5 The air conditioner also includes a control device 100, and the aforementioned indoor unit 200 (including the air outlet assembly 23) is communicatively connected to the control device 100. In this embodiment, the control device 100 is located inside the indoor unit 200. The first external air outlet panel 24 and / or the second external air outlet panel 27 connected to the indoor unit 200 are both communicatively connected to the control device 100, and the communication connection between the first external air outlet panel 24 and / or the second external air outlet panel 27 and the control device 100 is disconnected when the first external air outlet panel 24 and / or the second external air outlet panel 27 are not connected to the indoor unit 200.

[0079] The air conditioner may also include an environmental sensor 300, which is communicatively connected to the control device 100. The environmental sensor 300 is located in the indoor environment where the indoor unit 200 is located, for example, at the return air vent of the indoor unit 200, to detect the environmental status parameters of the indoor environment. The environmental status parameters may include ambient humidity and / or ambient temperature and / or ambient enthalpy, etc.

[0080] The control device 100 includes: at least one processor 1001; and a memory 1002 communicatively connected to the at least one processor 1001, and a timer 1003, etc.; wherein the memory 1002 stores instructions that can be executed by the at least one processor 1001, the instructions being executed by the at least one processor 1001 to enable the at least one processor 1001 to perform the air conditioner control method in the following embodiment.

[0081] The following is for reference. Figure 5 The diagram illustrates a structural schematic suitable for implementing the control device 100 in the embodiments of this application. The control device 100 in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, PADs (Portable Application Description: Tablet PCs), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 5 The control device 100 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0082] like Figure 5 As shown, the control device 100 may include a processor 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in memory 1002. The program in memory 1002 may be a program in read-only memory (ROM) or a program loaded from a storage device into random access memory (RAM). The RAM also stores various programs and data required for the operation of the control device 100. The processor 1001 and memory 1002 (ROM and RAM) are interconnected via a bus. An input / output (I / O) interface is also connected to the bus. Typically, the following systems can be connected to the I / O interface: input devices including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices including, for example, magnetic tapes, hard disks, etc.; and communication devices. The communication device allows the control device 100 to communicate wirelessly or wiredly with other devices to exchange data. Although the control unit 100 with various systems is shown in the figure, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented or have alternatively.

[0083] Specifically, according to the embodiments disclosed in this application, the method flow described in the following embodiments can be implemented as a computer software program. For example, the embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication device, or installed from memory 1002. When the computer program is executed by processor 1001, it performs the functions defined in the control method of the air conditioner of the embodiments disclosed in this application.

[0084] The air conditioner provided in this application, employing the indoor unit control method described in the following embodiments, solves the technical problem of reducing dust and other contaminants entering the indoor unit from the air outlet after the indoor unit is stopped. Compared with the prior art, the beneficial effects of the air conditioner provided in this application are the same as those of the indoor unit control method provided in the following embodiments, and other technical features of this air conditioner are the same as those disclosed in the method of the following embodiments, and will not be repeated here.

[0085] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or an electronic device or air conditioner capable of performing the above functions. The following description uses an air conditioner as an example to illustrate this embodiment and the subsequent embodiments.

[0086] Based on this, the embodiments of this application provide a control method for an indoor unit, referring to... Figure 6 , Figure 6 This is a flowchart illustrating the first embodiment of the control method for the indoor unit of this application.

[0087] In this embodiment, the indoor unit includes an air outlet and an air outlet assembly. The air outlet assembly is configured to adjust the air outlet's airflow state, which includes whether the air outlet is open or closed. The air outlet assembly may include one or more hinged doors to adjust the opening or closing of the air outlet. The control method for the indoor unit includes step S10: Step S10: In response to the shutdown command of the indoor unit, control the air outlet assembly to close the front air outlet and open the lower air outlet, wherein the area of ​​the front air outlet is larger than the area of ​​the lower air outlet; or, control the air outlet assembly to close the front air outlet and the lower air outlet.

[0088] In one embodiment, the area of ​​the front air outlet is larger than the area of ​​the lower air outlet, and the front and lower air outlets cannot be closed simultaneously. In response to a shutdown command from the indoor unit, the air outlet assembly is controlled to close the front air outlet and open the lower air outlet. For example, the front air outlet includes a first air outlet area and a second air outlet area. The air outlet assembly includes a fourth switch door and a fifth switch door. The fourth switch door is configured to adjust the airflow from the first air outlet area, and the fifth switch door is configured to adjust the airflow from the second air outlet area and the lower air outlet. The step of controlling the air outlet assembly to close the front air outlet and open the lower air outlet includes: controlling the fourth switch door to close the first air outlet area, and controlling the fifth switch door to close the second air outlet area and open the lower air outlet. Alternatively, the air outlet assembly includes a switch door that can switch between a closed front air outlet position and a closed lower air outlet position, and can also be controlled to close the front air outlet and open the lower air outlet.

[0089] In another embodiment, the area of ​​the front air outlet can be greater than, equal to, or smaller than the area of ​​the lower air outlet. The front and lower air outlets can be closed simultaneously. In response to a shutdown command from the indoor unit, the air outlet assembly is controlled to close both the front and lower air outlets. For example, the air outlet assembly includes a first door, a second door, and a third door. The front air outlet includes a first air outlet area and a second air outlet area. The first door is configured to adjust the first air outlet area, the second door is configured to adjust the second air outlet area, and the third door is configured to adjust the airflow from the lower air outlet. The step of controlling the air outlet assembly to close the front and lower air outlets includes: controlling the first door to close the first air outlet area, controlling the lower air outlet to close the second air outlet area, and controlling the third door to close the lower air outlet.

[0090] This application proposes a control method for an indoor unit. Based on an indoor unit equipped with a front air outlet and a lower air outlet, in response to a stop command, the larger front air outlet is closed or both the front and lower air outlets are closed. This can effectively reduce the flow area between the inside and outside of the indoor unit after it stops, thereby reducing the amount of dust and other contaminants entering the indoor unit from the air outlets after it stops.

[0091] Based on the above embodiments, in the second embodiment of this application, the same or similar content as the above embodiments can be referred to the above description, and will not be repeated hereafter. On this basis, refer to... Figure 7 The control method for the indoor unit further includes: Step S100: In response to the shutdown command of the indoor unit, obtain status information, including whether the front air outlet and the lower air outlet are connected to the corresponding external air outlet panel; Obtain status information, including whether the air outlet is connected to the corresponding external air outlet panel; When the external air outlet panel is connected to the air outlet, it establishes a communication connection with the control device; when not connected, it disconnects from the control device's interface. Therefore, by monitoring the interface's connection status, the control device can determine whether the corresponding external air outlet panel is connected.

[0092] Different air outlets correspond to different interfaces. By monitoring the connection status of different interfaces, it can be determined whether each air outlet is connected to the corresponding external air outlet panel.

[0093] Step S200: If neither the front air outlet nor the lower air outlet is connected to a corresponding external air outlet panel, execute the step of controlling the air outlet assembly to close the front air outlet and open the lower air outlet; or, execute the step of controlling the air outlet assembly to close the front air outlet and the lower air outlet. Step S300: If at least one of the front air outlet and the lower air outlet is connected to a corresponding external air outlet panel, control the operation of the air outlet assembly and the external air outlet panel or control the operation of the external air outlet panel to close the front air outlet and the lower air outlet.

[0094] The external air outlet panel controlled here is the panel connected to the air outlet.

[0095] The front air vent can be closed by closing the front air vent via the air vent assembly and / or by closing the air duct formed by the external air vent connected to the front air vent via the external air vent panel.

[0096] The lower air outlet can be closed by closing the lower air outlet assembly and / or by closing the external air outlet panel connected to the lower air outlet to close the air outlet duct formed in conjunction with the lower air outlet.

[0097] The external air outlet panel connecting the air outlet assembly and the air outlet can be operated in the following manner: When the front air outlet is connected to an external air outlet panel and the lower air outlet is not connected to an external air outlet panel, the air outlet assembly is controlled to operate to close the lower air outlet, and the external air outlet panel connected to the front air outlet is controlled to close the front air outlet. The external air outlet panel closing the front air outlet refers to the external air outlet panel closing the air outlet duct formed by the front air outlet and the external air outlet panel. Regarding the control of the air outlet assembly closing the lower air outlet: when the air outlet assembly includes the aforementioned first, second, and third switches, the third switch can be controlled to close the lower air outlet, while the first and second switches can maintain their current state; alternatively, the first switch can close the first air outlet area, and the second switch can close the second air outlet area. When the air outlet assembly includes the aforementioned fourth and fifth switches, the fifth switch can be controlled to close the lower air outlet and open the second air outlet area.

[0098] When the front air outlet is not connected to an external air outlet panel and the lower air outlet is connected to an external air outlet panel, the air outlet assembly is controlled to operate to close the front air outlet, and the external air outlet panel connected to the lower air outlet is controlled to close the lower air outlet. The external air outlet panel closing the lower air outlet refers to the external air outlet panel closing the air outlet duct formed by the lower air outlet and the external air outlet panel. Regarding the control of the air outlet assembly closing the front air outlet: When the air outlet assembly includes the aforementioned first, second, and third doors, the first door is controlled to close the first air outlet area, the second door is controlled to close the second air outlet area, and the third door can maintain its current state, or the third door can close the lower air outlet; when the air outlet assembly includes the aforementioned fourth and fifth doors, the fourth door is controlled to close the first air outlet area, and the fifth door is controlled to close the second air outlet area and open the lower air outlet.

[0099] When the front air outlet is connected to an external air outlet panel and the lower air outlet is connected to an external air outlet panel, control the external air outlet panel connected to the front air outlet to close the front air outlet, and control the external air outlet panel connected to the lower air outlet to close the lower air outlet.

[0100] In this embodiment, through the above-described method, by the cooperation between the air outlet component and the external air outlet panel, especially when the air outlet component cannot simultaneously close the front air outlet and the lower air outlet, the interior and exterior of the indoor unit can be effectively isolated after the indoor unit is shut down. The interior of the indoor unit forms a closed space, which can effectively prevent dust accumulation and bacterial growth in the air outlet channel of the indoor unit, and effectively improve the cleanliness of the air outlet when the indoor unit is turned on again.

[0101] In this embodiment, in response to the shutdown command, during the execution of steps S100 to S300, the indoor fan in the indoor unit can be turned on or off.

[0102] In a first feasible implementation, in response to the shutdown command, the indoor fan in the indoor unit is shut down before the step of acquiring status information is executed. After the indoor fan stops, the air outlet assembly and / or the connected external air outlet panel are controlled to cooperate in dust prevention. Based on this, the noise during the operation of the air outlet assembly and / or the connected external air outlet panel can be effectively reduced while improving the operating efficiency of the air outlet assembly and / or the external air outlet panel.

[0103] In a second feasible implementation, in response to the shutdown command, the indoor fan is kept on, and the step of acquiring status information is executed. When the indoor fan remains on, it can operate at the speed at which the shutdown command was received or at its lowest speed. Keeping the indoor fan on helps to blow the remaining energy from the indoor heat exchanger into the indoor space, improving the energy utilization rate of the air conditioner while also improving the stability of the indoor space temperature after shutdown, extending the shutdown time to avoid frequent start-stop cycles, and improving equipment operational stability. Furthermore, it helps to dry the moisture on the indoor heat exchanger, preventing bacterial growth after shutdown.

[0104] In one feasible implementation, in response to the shutdown command, after both the front air outlet and the lower air outlet are closed, the indoor fan is controlled to turn on so that the water in the water tray inside the indoor unit is drained away from the drain outlet of the water tray.

[0105] The water collection tray is located below the indoor heat exchanger to collect the condensate generated during the heat exchange process.

[0106] When the indoor fan is turned on, it can operate at the lowest speed or maintain its original speed. Under the target control state, which includes isolation between the interior and exterior spaces of the indoor unit, the operating speed of the indoor fan while it remains on is the first speed. Under the target control state, which includes a flow area between the interior and exterior spaces of the indoor unit that is less than a preset area, the operating speed of the indoor fan while it remains on is the second speed, and the first speed is lower than the second speed.

[0107] In this embodiment, the indoor fan remains on until both the front air outlet and the lower air outlet are closed after receiving the shutdown command.

[0108] In this embodiment, since the front and lower air outlets of the indoor unit are closed, the interior of the indoor unit is isolated from the outside. The indoor fan remains on, which creates a positive pressure state in the enclosed space. The water in the water tray inside the indoor unit is discharged from the drain outlet under the drive of the positive pressure. Based on this, it is beneficial to reduce water accumulation after the unit is shut down, thereby further reducing the risk of bacteria growth inside the indoor unit and improving the cleanliness of the air discharged from the indoor unit.

[0109] The steps of controlling the first switch door to close the first air outlet area, controlling the lower air outlet to close the second air outlet area, and controlling the third switch door to close the lower air outlet include: When the first switch opens the first air outlet area, the second switch opens the second air outlet area, and the third switch closes the lower air outlet, the second switch can be controlled to close the second air outlet area first, and the first switch can be controlled to close the first air outlet area after a set time interval. When the first switch opens the first air outlet area, the second switch opens the second air outlet area, and the third switch opens the lower air outlet, the third switch is first controlled to close the lower air outlet. After a set interval, the second switch is controlled to close the second air outlet area. After a set interval, the first switch is controlled to close the first air outlet area. When the first switch door closes the first air outlet area, the second switch door closes the second air outlet area, and the third switch door opens the lower air outlet, the third switch door can be controlled to close the lower air outlet.

[0110] Based on any of the above embodiments, in the third embodiment of this application, the same or similar content as the above embodiments can be referred to the above description, and will not be repeated hereafter. In addition, the control method of the indoor unit further includes: when the indoor unit is in cooling mode and both the front air outlet and the lower air outlet are in the air-discharging state, acquiring the environmental state parameters of the indoor space regulated by the indoor unit; when the environmental state parameters meet preset conditions, controlling the air outlet assembly to close one of the front air outlet and the lower air outlet; wherein, the preset conditions indicate that there is a risk of condensation in the air outlet area of ​​the indoor unit.

[0111] Environmental state parameters are environmental parameters that indicate the condensation risk in the air outlet area, and may include at least one of the following: ambient temperature, ambient humidity, ambient dew point temperature, etc.

[0112] In this embodiment, the preset conditions include an ambient humidity greater than a preset humidity for a sustained first preset duration. The preset humidity ranges from [70%, 100%], the first preset duration ranges from [1 hour, 12 hours], and so on.

[0113] The air outlet area here includes the air outlet of the indoor unit, the air outlet duct between the indoor unit and the external air outlet panel, and at least one of the external air outlet panels.

[0114] When the air outlet is in the air-discharging state, the air outlet is open. Furthermore, when the air outlet is connected to the corresponding external air outlet panel, when the air outlet is in the air-discharging state, the corresponding external air outlet panel opens the air outlet channel between the indoor unit and the external air outlet panel.

[0115] In this embodiment, the area of ​​the front air outlet is larger than the area of ​​the lower air outlet. Controlling the air outlet assembly to close one of the front and lower air outlets includes: controlling the air outlet assembly to close the lower air outlet while keeping the front air outlet open. In this embodiment, the air resistance of the lower air outlet is greater than that of the front air outlet. During airflow, cold air tends to accumulate in the air outlet area corresponding to the lower air outlet, leading to condensation. Therefore, closing the lower air outlet while keeping the front air outlet open effectively increases the airflow volume and velocity of a single vent of the front air outlet, effectively preventing cold air from accumulating in the air outlet area of ​​the indoor unit and causing condensation.

[0116] In this embodiment, when there is a risk of condensation when both air outlets are in the air-discharging state, closing one of the air outlets by using the air-discharging component can increase the airflow velocity of the air outlet that is still in the air-discharging state, thereby effectively reducing the risk of condensation.

[0117] In one feasible implementation, after the step of obtaining the environmental state parameters of the indoor space regulated by the indoor unit, the method further includes: When the environmental state parameters meet the preset conditions, obtain state information, including whether the front air outlet and the lower air outlet are connected to the corresponding external air outlet panel. When at least one of the front air outlet and the lower air outlet is connected to a corresponding external air outlet panel, the air outlet assembly and the external air outlet panel are controlled to operate to close one of the front air outlet and the lower air outlet, or the external air outlet panel is controlled to operate to close one of the front air outlet and the lower air outlet. When neither the front air outlet nor the lower air outlet is connected to an external air outlet panel, the step of controlling the air outlet assembly to close one of the front air outlet and the lower air outlet is performed.

[0118] The process of controlling the air outlet assembly and the external air outlet panel to close one of the front air outlet and the lower air outlet, or controlling the external air outlet panel to close one of the front air outlet and the lower air outlet, is as follows: When the front air outlet is connected to an external air outlet panel and the lower air outlet is not connected to an external air outlet panel, the air outlet assembly is controlled to close the lower air outlet while keeping the front air outlet open. During this process, the external air outlet panel connected to the front air outlet remains open. When the air outlet assembly includes a first switch door, a second switch door, and a third switch door, the first switch door can be controlled to open the first air outlet area, the second switch door can be controlled to open the second air outlet area, and the third switch door can be controlled to close the lower air outlet. When the air outlet assembly includes a fourth switch door and a fifth switch door, the fourth switch door can be controlled to open the first air outlet area, the fifth switch door can be controlled to open the second air outlet area, and the lower air outlet can be closed.

[0119] When the front air outlet is not connected to an external air outlet panel and the lower air outlet is connected to an external air outlet panel, the air outlet assembly is controlled to operate to close the lower air outlet while keeping the front air outlet open, and the external air outlet panel connected to the lower air outlet is controlled to close the lower air outlet. During this process, the external air outlet panel connected to the front air outlet maintains its current operation. When the air outlet assembly includes a first switch door, a second switch door, and a third switch door, the first switch door can be controlled to open the first air outlet area, the second switch door can be controlled to open the second air outlet area, and the third switch door can be controlled to close the lower air outlet. When the air outlet assembly includes a fourth switch door and a fifth switch door, the fourth switch door can be controlled to open the first air outlet area, the fifth switch door can be controlled to open the second air outlet area, and the lower air outlet can be closed.

[0120] When both the front and lower air outlets are connected to an external air outlet panel, the air outlet assembly is controlled to close the lower air outlet while keeping the front air outlet open, and the external air outlet panel connected to the lower air outlet is controlled to close the lower air outlet. During this process, the external air outlet panel connected to the front air outlet remains open. When the air outlet assembly includes a first, second, and third switch door, the first switch door can be controlled to open the first air outlet area, the second switch door can be controlled to open the second air outlet area, and the third switch door can be controlled to close the lower air outlet. When the air outlet assembly includes a fourth and fifth switch door, the fourth switch door can be controlled to open the first air outlet area, the fifth switch door can be controlled to open the second air outlet area, and the lower air outlet can be closed.

[0121] In this embodiment, the indoor fan speed remains constant during the operation of the air outlet assembly and / or the external air outlet panel.

[0122] In this embodiment, when there is a risk of condensation due to multiple air outlets being in the air-discharging state, if at least one air outlet is connected to an external air outlet panel, the external air outlet panel, in conjunction with the air outlet assembly, ensures that the larger air outlet is in the air-discharging state while the smaller air outlet stops discharging air, thereby effectively reducing the risk of condensation in the indoor unit's air outlet area. Specifically, when the air outlet assembly closes the lower air outlet, the air outlet panel simultaneously closes the air outlet passage between the lower air outlet and the external air outlet panel. This further reduces the risk of condensation and ensures that the corresponding external air outlet panel will not remain open when the lower air outlet stops discharging air, preventing users from mistakenly believing there is a equipment malfunction and reducing customer complaints.

[0123] In other embodiments, the area or air outlet direction of different air outlets may be equal. In this case, some air outlets and / or corresponding air outlet channels that are currently in the air outlet state can be closed in advance or according to the actual operating conditions of the air conditioner, while some air outlets remain in the air outlet state.

[0124] In other embodiments, when the lower air outlet is connected to the external air outlet panel, the external air outlet panel can maintain the opening of the channel between the lower air outlet and the external air outlet panel while the air outlet component closes the lower air outlet, or the air outlet component can maintain the opening of the lower air outlet while the external air outlet panel closes the channel between the lower air outlet and the external air outlet panel.

[0125] In other embodiments, when the indoor unit is in cooling mode and one of the front air outlet and the lower air outlet is in an air-discharging state, the environmental state parameters of the indoor space regulated by the indoor unit are acquired; if the environmental state parameters meet preset conditions, the air outlet area of ​​the air outlet in the air-discharging state is increased or the number of air outlets in the air-discharging state is increased. In one implementation, when the air outlet currently in the air-discharging state is the lower air outlet, the air outlet currently in the air-discharging state is switched from the lower air outlet to the front air outlet; when one of the lower air outlet and the front air outlet is currently in the air-discharging state, both the lower air outlet and the front air outlet are opened; when the air outlet currently in the air-discharging state is the front air outlet and the front air outlet is partially opened (for example, one of the first air outlet area and the second air outlet area mentioned above is closed), the air outlet assembly can be controlled to fully open the front air outlet and the air outlet assembly or the connected external air outlet panel can be controlled to close the lower air outlet. In another implementation, when the front or lower air outlet is connected to an external air outlet panel, the external air outlet panel can be controlled to increase the air outlet area.

[0126] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the control method of the indoor unit of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0127] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the indoor unit control method of the above embodiments.

[0128] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0129] The aforementioned computer-readable storage medium may be included in the air conditioner; or it may exist independently and not be installed in the air conditioner.

[0130] The aforementioned computer-readable storage medium carries one or more programs, which, when executed by a processor, cause the processor to execute the processes in the aforementioned indoor unit control method embodiments.

[0131] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0132] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the control method of the indoor unit described above. This solves the technical problem of how to ensure that the control requirements of the air conditioner can be accurately met under different airflow conditions. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the indoor unit control method provided in the above embodiments, and will not be elaborated upon here.

[0133] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0134] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. Modules described in the embodiments of this application can be implemented in software or hardware. The names of modules do not necessarily limit the specific unit itself. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0135] All actions involving the acquisition of signals, information, or data in this application are carried out in accordance with the relevant data protection laws and policies of the country where the application is located, and with the authorization of the owner of the relevant device.

[0136] The above descriptions are merely some embodiments of this application and do not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the content of this specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application. Therefore, the protection scope of this application should be determined by the scope of the claims.

Claims

1. A control method for an indoor unit, characterized in that, The indoor unit includes a front air outlet, a lower air outlet, and an air outlet assembly. The air outlet assembly is configured to adjust the airflow from the front air outlet and the lower air outlet. The control method for the indoor unit includes: In response to a shutdown command from the indoor unit, the air outlet assembly is controlled to close the front air outlet and open the lower air outlet, wherein the area of ​​the front air outlet is larger than the area of ​​the lower air outlet; or, the air outlet assembly is controlled to close both the front air outlet and the lower air outlet.

2. The indoor unit control method as described in claim 1, characterized in that, The air outlet assembly includes a first switch door, a second switch door, and a third switch door. The front air outlet includes a first air outlet area and a second air outlet area. The first switch door is configured to adjust the first air outlet area, the second switch door is configured to adjust the second air outlet area, and the third switch door is configured to adjust the air outlet of the lower air outlet. The step of controlling the air outlet assembly to close the front air outlet and the lower air outlet includes: Control the first switch door to close the first air outlet area, control the lower air outlet to close the second air outlet area, and control the third switch door to close the lower air outlet.

3. The indoor unit control method as described in claim 1, characterized in that, The front air outlet includes a first air outlet area and a second air outlet area. The air outlet assembly includes a fourth switch door and a fifth switch door. The fourth switch door is configured to adjust the air outlet of the first air outlet area, and the fifth switch door is configured to adjust the air outlet of the second air outlet area and the lower air outlet. The step of controlling the air outlet assembly to close the front air outlet and open the lower air outlet includes: The fourth switch door is controlled to close the first air outlet area, and the fifth switch door is controlled to close the second air outlet area and open the lower air outlet.

4. The indoor unit control method as described in claim 1, characterized in that, The control method for the indoor unit also includes: In response to the shutdown command of the indoor unit, status information is obtained, including whether the front air outlet and the lower air outlet are connected to the corresponding external air outlet panel; If neither the front air outlet nor the lower air outlet is connected to a corresponding external air outlet panel, the step of controlling the air outlet assembly to close the front air outlet and open the lower air outlet is executed; or, the step of controlling the air outlet assembly to close the front air outlet and the lower air outlet is executed. When at least one of the front air outlet and the lower air outlet is connected to a corresponding external air outlet panel, the air outlet assembly and the external air outlet panel are controlled to operate, or the external air outlet panel is controlled to operate, to close the front air outlet and the lower air outlet.

5. The indoor unit control method as described in claim 4, characterized in that, When at least one of the front air outlet and the lower air outlet is connected to a corresponding external air outlet panel, the step of controlling the air outlet assembly and the external air outlet panel to operate, or controlling the external air outlet panel to operate, to close the front air outlet and the lower air outlet includes: When the front air outlet is connected to an external air outlet panel and the lower air outlet is not connected to an external air outlet panel, control the air outlet assembly to operate to close the lower air outlet, and control the external air outlet panel connected to the front air outlet to close the front air outlet. When the front air outlet is not connected to an external air outlet panel and the lower air outlet is connected to an external air outlet panel, the air outlet assembly is controlled to operate to close the front air outlet and the external air outlet panel connected to the lower air outlet is controlled to close the lower air outlet. When the front air outlet is connected to an external air outlet panel and the lower air outlet is connected to an external air outlet panel, control the external air outlet panel connected to the front air outlet to close the front air outlet, and control the external air outlet panel connected to the lower air outlet to close the lower air outlet.

6. The indoor unit control method as described in claim 5, characterized in that, The air outlet assembly includes a first switch door, a second switch door, and a third switch door. The front air outlet includes a first air outlet area and a second air outlet area. The first switch door is configured to adjust the first air outlet area, the second switch door is configured to adjust the second air outlet area, and the third switch door is configured to adjust the air outlet of the lower air outlet. The step of controlling the operation of the air outlet assembly to close the lower air outlet includes: controlling the third switch door to close the lower air outlet; The step of controlling the operation of the air outlet assembly to close the front air outlet includes: controlling the first switch door to close the first air outlet area, and controlling the second switch door to close the second air outlet area.

7. The indoor unit control method as described in claim 5, characterized in that, The front air outlet includes a first air outlet area and a second air outlet area. The air outlet assembly includes a fourth switch door and a fifth switch door. The fourth switch door is configured to adjust the air outlet of the first air outlet area, and the fifth switch door is configured to adjust the air outlet of the second air outlet area and the lower air outlet. The step of controlling the operation of the air outlet assembly to close the lower air outlet includes: The fifth switch door is controlled to close the lower air outlet and open the second air outlet area; The step of controlling the operation of the air outlet assembly to close the front air outlet includes: The fourth switch door is controlled to close the first air outlet area, and the fifth switch door is controlled to close the second air outlet area and open the lower air outlet.

8. The indoor unit control method as described in claim 4, characterized in that, The control method for the indoor unit includes: In response to the shutdown command, the indoor fan in the indoor unit is shut down and the step of obtaining status information is executed. Alternatively, in response to the shutdown command, control the indoor fan to remain on and execute the step of obtaining status information; Alternatively, in response to the shutdown command, after both the front air outlet and the lower air outlet are closed, the indoor fan is turned on so that the water in the water tray inside the indoor unit is drained away from the drain outlet of the water tray.

9. The control method for an indoor unit as described in any one of claims 1 to 8, characterized in that, The control method for the indoor unit includes: When the indoor unit is in cooling mode and both the front air outlet and the lower air outlet are in the air-discharging state, the environmental state parameters of the indoor space regulated by the indoor unit are obtained. When the environmental state parameters meet the preset conditions, the air outlet assembly is controlled to close one of the front air outlet and the lower air outlet; The preset condition indicates that there is a risk of condensation in the air outlet area of ​​the indoor unit.

10. The indoor unit control method as described in claim 9, characterized in that, The preset conditions include an ambient humidity greater than a preset humidity for a continuous first preset duration; And / or, the area of ​​the front air outlet is larger than the area of ​​the lower air outlet, and the step of controlling the air outlet assembly to close one of the front air outlet and the lower air outlet includes: Control the operation of the air outlet assembly to close the lower air outlet and keep the front air outlet open.

11. The indoor unit control method as described in claim 10, characterized in that, After the step of obtaining the environmental state parameters of the indoor space regulated by the indoor unit, the method further includes: When the environmental state parameters meet the preset conditions, obtain state information, including whether the front air outlet and the lower air outlet are connected to the corresponding external air outlet panel. When at least one of the front air outlet and the lower air outlet is connected to a corresponding external air outlet panel, the air outlet assembly and the external air outlet panel are controlled to operate to close one of the front air outlet and the lower air outlet, or the external air outlet panel is controlled to operate to close one of the front air outlet and the lower air outlet. When neither the front air outlet nor the lower air outlet is connected to an external air outlet panel, the step of controlling the air outlet assembly to close one of the front air outlet and the lower air outlet is performed.

12. The indoor unit control method as described in claim 11, characterized in that, The step of controlling the air outlet assembly and the external air outlet panel to operate to close one of the front air outlet and the lower air outlet, or controlling the external air outlet panel to operate to close one of the front air outlet and the lower air outlet, includes: When the front air outlet is connected to an external air outlet panel and the lower air outlet is not connected to an external air outlet panel, control the air outlet assembly to close the lower air outlet and keep the front air outlet open. When the front air outlet is not connected to an external air outlet panel and the lower air outlet is connected to an external air outlet panel, the air outlet assembly is controlled to operate to close the lower air outlet while keeping the front air outlet open, and the external air outlet panel connected to the lower air outlet is controlled to close the lower air outlet. When the front air outlet is connected to an external air outlet panel and the lower air outlet is connected to an external air outlet panel, control the air outlet assembly to close the lower air outlet while keeping the front air outlet open, and control the external air outlet panel connected to the lower air outlet to close the lower air outlet.

13. The indoor unit control method as described in claim 12, characterized in that, The air outlet assembly includes a first switch door, a second switch door, and a third switch door. The front air outlet includes a first air outlet area and a second air outlet area. The first switch door is configured to adjust the first air outlet area, the second switch door is configured to adjust the second air outlet area, and the third switch door is configured to adjust the air outlet of the lower air outlet. The step of controlling the operation of the air outlet assembly to close the lower air outlet and keep the front air outlet open includes: controlling the first switch door to open the first air outlet area, controlling the second switch door to open the second air outlet area, and controlling the third switch door to close the lower air outlet. Alternatively, the front air outlet includes a first air outlet area and a second air outlet area, and the air outlet assembly includes a fourth switch door and a fifth switch door. The fourth switch door is configured to adjust the air outlet of the first air outlet area, and the fifth switch door is configured to adjust the air outlet of the second air outlet area and the lower air outlet. The step of controlling the operation of the air outlet assembly to close the lower air outlet and keep the front air outlet open includes: The fourth switch door is controlled to open the first air outlet area, and the fifth switch door is controlled to open the second air outlet area and close the lower air outlet.

14. An air conditioner, characterized in that, The air conditioner includes a control device and an indoor unit connected to the control device. The indoor unit includes a front air outlet, a lower air outlet, and an air outlet assembly. The control device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the control method for the indoor unit as described in any one of claims 1 to 13.

15. The air conditioner as described in claim 14, characterized in that, The air outlet assembly includes a first switch door, a second switch door, and a third switch door. The front air outlet includes a first air outlet area and a second air outlet area. The first switch door is configured to adjust the first air outlet area, the second switch door is configured to adjust the second air outlet area, and the third switch door is configured to adjust the air outlet of the lower air outlet. Alternatively, the front air outlet includes a first air outlet area and a second air outlet area, and the air outlet assembly includes a fourth switch door and a fifth switch door. The fourth switch door is configured to adjust the air outlet of the first air outlet area, and the fifth switch door is configured to adjust the air outlet of the second air outlet area and the lower air outlet.

16. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the indoor unit control method as described in any one of claims 1 to 13.

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