Air conditioner and control method thereof

Abstract

The application discloses a control method and device of an air conditioner, the air conditioner and a storage medium. The air conditioner comprises an air conditioner outdoor unit and at least one air conditioner indoor unit. The air conditioner outdoor unit is connected with each air conditioner indoor unit respectively. The air conditioner indoor unit comprises a side air outlet, a lower air outlet and at least two switch doors. The switch doors are used for adjusting the air volume of the side air outlet and the lower air outlet. The method comprises the following steps: when the heating operation time reaches a preset time, the indoor environment temperature of the environment where the target air conditioner indoor unit with heating demand is located, the middle temperature of the heat exchanger and the target setting temperature are obtained; and the angle of the switch door is adjusted according to at least one of the above parameters. In the manner, the angle of the switch door of the air conditioner indoor unit is adjusted, the air volume of the side air outlet and the lower air outlet is adaptively adjusted, the thermal comfort and the user experience are improved, and the reliability of the system operation is ensured.

Description

Technical Field

[0001] This application relates to the field of air conditioner technology, and more particularly to air conditioners and their control methods. Background Technology

[0002] Traditional indoor units with only side air outlets suffer from severe air stratification in heating mode, making it difficult for hot air to reach the ground. This results in users feeling hot at the head and cold at the feet, and the overall room temperature rises slowly, leading to a poor user experience and thermal comfort. In order to make the warm air reach the ground, the side air outlet guide plate needs to be lowered as much as possible, which results in a narrow air outlet and may cause problems with airflow and operational reliability. Summary of the Invention

[0003] The main objective of this application is to provide an air conditioner and its control method, which aims to solve the technical problem in the prior art that air conditioners cannot simultaneously guarantee thermal comfort and system operational reliability when heating.

[0004] To achieve the above objectives, this application proposes a control method for an air conditioner. The control method is applied to an air conditioner, which includes an outdoor unit and at least one indoor unit. The outdoor unit is connected to each indoor unit. The indoor unit includes a side air outlet, a bottom air outlet, and at least two doors. The doors are used to adjust the air volume of the side air outlet and the bottom air outlet.

[0005] The control method for the air conditioner includes:

[0006] When the heating operation time reaches the preset time, the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the heat exchanger in the middle of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit are obtained. The target air conditioner indoor unit is an air conditioner indoor unit with heating demand.

[0007] The angle of the door opening and closing is adjusted based on at least one of the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the middle part of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit.

[0008] In one embodiment, the indoor unit of the air conditioner further includes an indoor fan, a first switch door, and a second switch door. The first switch door is used to adjust the air volume of the side air outlet, and the second switch door is used to adjust the air volume of the side air outlet and the air volume of the bottom air outlet.

[0009] The step of obtaining the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the heat exchanger in the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit when the heating operation time reaches the preset time includes:

[0010] In response to the heating demand command of the target air conditioner indoor unit, the first switch door of the target air conditioner indoor unit is closed, and the second switch door of the target air conditioner indoor unit is opened to a first angle;

[0011] When the heating operation time reaches the preset duration, the indoor fan of the target air conditioner indoor unit is turned on, and the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the heat exchanger in the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit are obtained.

[0012] In one embodiment, the indoor unit of the air conditioner further includes a first switch door and a second switch door, the first switch door being used to adjust the air volume of the side air outlet, and the second switch door being used to adjust the air volume of the side air outlet and the air volume of the bottom air outlet.

[0013] The step of adjusting the opening and closing angle of the door based on at least one of the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the middle part of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit includes:

[0014] When the temperature in the middle of the heat exchanger of the target air conditioner indoor unit is less than or equal to the first temperature threshold, the first switch door of the target air conditioner indoor unit is closed, and the second switch door of the target air conditioner indoor unit is opened to the first angle.

[0015] In one embodiment, before the step of maintaining the first operating state of the side air outlet and the second operating state of the lower air outlet when the temperature in the middle of the heat exchanger of the target air conditioner indoor unit is less than or equal to a first temperature threshold, the method further includes:

[0016] A strategy is formulated based on the indoor ambient temperature of the target air conditioner indoor unit.

[0017] A strategy is developed based on the threshold to determine the first temperature threshold.

[0018] In one embodiment, the indoor unit of the air conditioner further includes a first switch door and a second switch door, the first switch door being used to adjust the air volume of the side air outlet, and the second switch door being used to adjust the air volume of the side air outlet and the air volume of the bottom air outlet.

[0019] The step of adjusting the opening and closing angle of the door based on at least one of the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the middle part of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit includes:

[0020] When the temperature in the middle of the heat exchanger of the target air conditioner indoor unit is greater than the first temperature threshold, the target temperature difference of the target air conditioner indoor unit is determined by calculating the difference between the indoor ambient temperature of the target air conditioner indoor unit and the target set temperature of the target air conditioner indoor unit.

[0021] When the target temperature difference is greater than the second temperature threshold, the first switch door of the target air conditioner indoor unit is closed, and the second switch door of the target air conditioner indoor unit is adjusted to be closed.

[0022] In one embodiment, after the step of calculating the difference between the indoor ambient temperature of the target air conditioner indoor unit and the target set temperature of the target air conditioner indoor unit to determine the target temperature difference of the target air conditioner indoor unit, the method further includes:

[0023] When the target temperature difference is less than or equal to the second temperature threshold and the target temperature difference is greater than the third temperature threshold, the first door of the target air conditioner indoor unit is opened to the second angle, and the second door of the target air conditioner indoor unit is opened to the third angle.

[0024] In one embodiment, after the step of calculating the difference between the indoor ambient temperature of the target air conditioner indoor unit and the target set temperature of the target air conditioner indoor unit to determine the target temperature difference of the target air conditioner indoor unit, the method further includes:

[0025] When the target temperature difference is less than or equal to the third temperature threshold, the first door of the target air conditioner indoor unit is opened to the second angle, and the second door of the target air conditioner indoor unit is opened to the first angle.

[0026] Furthermore, to achieve the above objectives, this application also proposes a control device for an air conditioner, the control device comprising:

[0027] The acquisition module is used to acquire the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the heat exchanger in the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit when the heating operation time reaches a preset time. The target air conditioner indoor unit is an air conditioner indoor unit with heating demand.

[0028] The adjustment module is used to adjust the angle of the door opening and closing based on at least one of the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the middle part of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit.

[0029] In addition, to achieve the above objectives, this application also proposes an air conditioner, which includes: an outdoor unit and at least one indoor unit, wherein the outdoor unit is connected to each indoor unit, and the indoor unit includes: a side air outlet, a bottom air outlet, and at least two hinged doors.

[0030] The air conditioner further 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 air conditioner as described above.

[0031] 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 air conditioner control method described above.

[0032] In addition, to achieve the above objectives, this application also provides a computer program product, which includes a computer program that, when executed by a processor, implements the steps of the air conditioner control method described above.

[0033] This application proposes one or more technical solutions, including an air conditioner outdoor unit and at least one air conditioner indoor unit. The outdoor unit is connected to each indoor unit. Each indoor unit includes a side air outlet, a bottom air outlet, and at least two control doors. The control doors are used to adjust the airflow from the side and bottom air outlets. The method includes: when the heating operation time reaches a preset duration, acquiring the indoor ambient temperature of the target indoor unit, the temperature at the center of the heat exchanger of the target indoor unit, and the target set temperature of the target indoor unit, where the target indoor unit is an air conditioner with heating demand; adjusting the angle of the control doors based on at least one of the indoor ambient temperature, the temperature at the center of the heat exchanger, and the target set temperature. By adjusting the angle of the control doors of the indoor unit, adaptive adjustment of the airflow from the side and bottom air outlets is achieved, improving thermal comfort and user experience while ensuring system reliability. Attached Figure Description

[0034] 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.

[0035] 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.

[0036] Figure 1 This is a flowchart illustrating an embodiment of the control method for an air conditioner according to this application.

[0037] Figure 2 This is a schematic diagram showing the structure and air outlet state of an indoor unit in an embodiment of the air conditioner of this application;

[0038] Figure 3 This is a schematic diagram of the air guide plate angle under low wind conditions in an embodiment of the indoor unit of the air conditioner of this application;

[0039] Figure 4 This is a flowchart illustrating Embodiment 2 of the control method for the air conditioner of this application;

[0040] Figure 5 This is a flowchart illustrating Embodiment 3 of the control method for the air conditioner of this application;

[0041] Figure 6 This is a schematic diagram of the air guide plate angle under normal heat conditions in an embodiment of the indoor unit of the air conditioner of this application;

[0042] Figure 7 This is a schematic diagram of the air guide plate angle in the second rapid heating mode of an embodiment of the indoor unit of the air conditioner in this application;

[0043] Figure 8 This is a schematic diagram of the air guide plate angle in the first rapid heating mode of an embodiment of the indoor unit of the air conditioner in this application;

[0044] Figure 9 This is a schematic diagram showing the temperature range of the air guide plate state change in the heating mode of an indoor unit of the air conditioner according to an embodiment of the present application.

[0045] Figure 10 This is a schematic diagram showing the temperature range of the air guide plate's state change in an embodiment of the indoor unit of the air conditioner in this application.

[0046] Figure 11 This is a schematic diagram of the module structure of the control device of the air conditioner according to an embodiment of this application;

[0047] Figure 12 This is a schematic diagram of the hardware operating environment involved in the control method of the air conditioner in this application embodiment.

[0048] Explanation of icon numbers:

[0049] Indoor heat exchanger 21, indoor fan 22, air outlet assembly 23, first air guide assembly 24, second air guide assembly 25;

[0050] Side air outlet 201, bottom air outlet 202, first switch door 231, second switch door 232.

[0051] 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

[0052] 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.

[0053] 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.

[0054] Traditional multi-split indoor units dissipate air through side vents. This results in severe air stratification in heating mode, making it difficult for hot air to reach near the ground. This leads to warm air rising above cool air falling, leaving users with hot heads and cold feet, and a slow overall increase in room temperature. This results in poor user comfort and thermal comfort. For indoor units with bottom vents, when only the bottom vent is open for heating, the airflow resistance is high due to the duct structure, causing a significant reduction in airflow. Under high-load heating conditions, poor airflow not only causes airflow noise but can also easily lead to excessively high indoor heat exchanger pipe temperatures or system pressures, affecting the reliability of the air conditioning system.

[0055] This application provides a solution that, when the heating operation time reaches a preset duration, acquires the indoor ambient temperature of the target air conditioner indoor unit, the temperature at the center of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit, wherein the target air conditioner indoor unit is an air conditioner indoor unit with heating demand; and adjusts the opening and closing angle of the door based on at least one of the indoor ambient temperature of the target air conditioner indoor unit, the temperature at the center of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit. By adjusting the opening and closing angle of the air conditioner indoor unit in this way, adaptive adjustment of the air volume of the side air outlet and the bottom air outlet is achieved, improving thermal comfort and user experience while ensuring the reliability of system operation.

[0056] 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 an air conditioner, a fresh air system, etc., 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.

[0057] Based on this, the embodiments of this application provide a control method for an air conditioner, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the control method for the air conditioner of this application.

[0058] In this embodiment, the control method of the air conditioner includes steps S10 to S20:

[0059] In this embodiment, the control method for the air conditioner is applied to the air conditioner, which includes an outdoor unit and at least one indoor unit. The outdoor unit is connected to each indoor unit. The indoor unit includes a side air outlet, a bottom air outlet, and at least two control doors. The control doors are used to adjust the air volume of the side air outlet and the bottom air outlet.

[0060] In this embodiment, the air conditioner refers to a multi-split air conditioner, which is an air conditioner with an outdoor unit connected to multiple indoor units, capable of simultaneously adjusting parameters such as air temperature, humidity, cleanliness, and airflow in multiple rooms, including but not limited to cooling, heating, and fresh air circulation modes.

[0061] Understandably, referring to Figure 2 The air conditioner includes an indoor unit, which has at least two air outlets with different orientations and different air resistances. In this embodiment, the indoor unit includes a side air outlet and a bottom air outlet, with the bottom air outlet having a greater air resistance than the side air outlet.

[0062] In this embodiment, the indoor unit of the air conditioner is a ducted unit. The installation height of the indoor unit is higher than the height of a person.

[0063] An indoor air duct is provided inside the air conditioner indoor unit, and at least two air outlets are connected to the indoor air duct. An indoor heat exchanger 21 and an indoor fan 22 are provided 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.

[0064] In this embodiment, the indoor unit of the air conditioner includes a housing, which includes a bottom plate and a side plate connected to the bottom plate. The bottom plate is provided with a lower air outlet 202, and the side plate is provided with a side air outlet 201. Both the lower air outlet 202 and the side air outlet 201 are connected to the indoor air duct.

[0065] The base plate is the plate located at the bottom of the casing when the indoor unit of the air conditioner is installed in the indoor space, and the side plates are the plates on the casing that are adjacent to the base plate. When the indoor unit of the air conditioner is installed in the indoor space, the angle between the side plate and the wall of the indoor space (for example, 0 degrees) is smaller than the angle between the base plate and the wall of the indoor space (for example, 90 degrees).

[0066] The air outlet surface of the lower air outlet 202 and the air outlet surface of the side air outlet 201 may be arranged to intersect (see reference). Figure 2The air outlets can also be arranged without intersecting each other; this embodiment does not impose any restrictions on this. Without the guidance of the air guide assembly, the air outlet 202 directs downwards (vertically downwards or at an angle less than or equal to 45° with the vertical direction), and the side air outlet 201 directs horizontally (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 side air outlet 201.

[0067] 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 side 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 side air outlet 201. In this embodiment, the area of ​​the lower air outlet 202 is smaller than the area of ​​the side air outlet 201, and the angle between the air outlet direction of the indoor fan 22 and the air outlet surface of the side 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 side air outlet 201 and not towards the lower air outlet 202.

[0068] When the air conditioner indoor unit 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.

[0069] In other embodiments, at least two air outlets may also be located on the side of the indoor unit of the air conditioner, or the air outlets may have the same direction of airflow when they are fully open.

[0070] In this embodiment, the indoor unit of the air conditioner also includes an air outlet assembly 23, which is configured to adjust the air outlet state of the at least two air outlets, and can adjust the opening and / or closing of each air outlet and / or adjust the air volume.

[0071] The air outlet assembly 23 can be a single integrated structure or composed of more than one switch door. When the air outlet assembly 23 includes more than one switch door, the air outlet can correspond one-to-one with the switch door, and each switch door can adjust the air outlet state of its corresponding air outlet; or, some switch doors can simultaneously adjust the air outlet state of different air outlets.

[0072] In this embodiment, an air outlet assembly 23 is installed in the indoor air duct. The position of the air outlet assembly 23 can be changed to allow the lower air outlet 202 and the side air outlet 201 to cooperate in different air outlet states:

[0073] Reference Figure 2 The dotted line indicates the airflow direction. When the air outlet assembly 23 is in the first position, both the lower air outlet 202 and the side air outlet 201 are open.

[0074] In this embodiment, the air outlet assembly 23 includes a first switch door 231 and a second switch door 232, and the side 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 volume of the first air outlet area, and the second switch door 232 is configured to adjust the air volume of the second air outlet area and the lower air outlet 202.

[0075] 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 side air outlet 201 and can adjust the air volume of the upper air outlet area. The second switch door 232 is rotatably installed at the adjacent position between the lower air outlet 202 and the side air outlet 201. When the second switch door 232 rotates, it can simultaneously adjust the air volume of the lower air outlet area and the lower air outlet 202.

[0076] Reference Figure 2 The first position includes the first switch door 231 being in the first position and the second switch door 232 being in the second position. In the second position, the second switch door 232 simultaneously opens the second air outlet area and the lower air outlet 202, and at this time, the side air outlets 201 are fully open. The first switch door 231 and the second switch door 232 cooperate to open the lower air outlet 202 and the side air outlets 201, and the air from the indoor fan 22 is blown into the room from the lower air outlet 202 and the side air outlets 201 under the combined airflow guiding effect of the first switch door 231 and the second switch door 232.

[0077] In other embodiments, the air outlet assembly 23 may also include a third switch door rotatably mounted between the lower air outlet 202 and the side air outlet 201. The third switch door can switch between a first operating device, a second operating position, and a third operating position. The first operating position is the position where the lower air outlet 202 is closed and the side air outlet 201 is open. The second operating position is the position where the side air outlet 201 is closed and the lower air outlet 202 is open. The third operating position is the position where both the lower air outlet 202 and the side air outlet 201 are open simultaneously.

[0078] In one embodiment, the indoor unit of the air conditioner may further include a first air guide assembly 24, which may be disposed at the lower air outlet 202 and located outside the indoor air duct, and the first air guide assembly 24 may be installed on the housing.

[0079] The first air guide assembly 24 can open or close the lower air outlet 202, and adjust the air outlet direction of the lower air outlet 202 when the lower air outlet 202 is opened.

[0080] In one embodiment, the indoor unit of the air conditioner may further include a second air guide assembly 25, which may be disposed at the side air outlet 201 and located outside the indoor air duct, and the second air guide assembly 25 may be installed on the housing.

[0081] The second air guide assembly 25 can open or close the side air outlet 201, and adjust the air outlet direction of the side air outlet 201 when the side air outlet 201 is opened.

[0082] In one embodiment, the air conditioner includes a refrigerant circulation loop, which includes the aforementioned indoor unit, throttling device, outdoor heat exchanger, reversing assembly, and compressor, with the compressor connected to the indoor unit.

[0083] 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.

[0084] The indoor unit of the air conditioner also includes a first temperature sensor (not shown), which can be installed in the indoor air duct and located on the air outlet side of the indoor fan 22 to detect the air outlet temperature of the indoor unit.

[0085] The indoor unit of the air conditioner also includes a second temperature sensor (not shown), which can be installed on the coil of the indoor heat exchanger 21 to detect the temperature of the indoor heat exchanger 21.

[0086] Step S10: When the heating operation time reaches the preset duration, obtain the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the heat exchanger in the middle of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit, wherein the target air conditioner indoor unit is an air conditioner indoor unit with heating demand.

[0087] It should be noted that the target air conditioner indoor unit refers to the air conditioner indoor unit that has a cooling demand; the heat exchanger center temperature refers to the temperature at the middle position of the indoor heat exchanger in the target air conditioner indoor unit. The heat exchanger center temperature can be measured by a sensor installed on the indoor heat exchanger to monitor and control system performance and ensure that the air conditioner operates with the expected efficiency; the target set temperature refers to the temperature that the target air conditioner indoor unit is expected to reach when it is in heating mode, as set by the user or the system.

[0088] It is understandable that after the target air conditioner indoor unit starts heating operation and the heating operation time continues for the preset duration, the indoor ambient temperature T1, the temperature in the middle of the heat exchanger T2, and the target set temperature Ts of the environment where the target air conditioner indoor unit is located are obtained.

[0089] In one feasible implementation, the indoor unit of the air conditioner further includes an indoor fan, a first switch door, and a second switch door. The first switch door is used to adjust the airflow from the side air outlet, and the second switch door is used to adjust the airflow from the side air outlet and the airflow from the bottom air outlet. Step S10 includes steps A11 to A12:

[0090] It should be noted that the indoor unit of the air conditioner in this embodiment includes an indoor fan, a first switch door (i.e., an upper air guide plate), a second switch door (i.e., a lower air guide plate), a side air outlet, a lower air outlet, and an indoor heat exchanger. Driven by the fan motor, the indoor unit's turbine rotates, drawing in return air. When the return air flows through the indoor heat exchanger, it exchanges heat with the refrigerant inside, and then is blown into the room through the side and lower air outlets to regulate the indoor temperature. In this embodiment, to achieve rapid heating and improve comfort, a lower air outlet is added in addition to the side air outlet. A first and second switch door are provided at the side air outlet, and the lower air outlet shares a second switch door with the side air outlet. When the air conditioner is running, the linkage between the first and second switch doors creates a comfortable indoor airflow field.

[0091] Step A11: In response to the heating demand command of the target air conditioner indoor unit, adjust the first door of the target air conditioner indoor unit to the closed angle, and open the second door of the target air conditioner indoor unit to the first angle.

[0092] It should be noted that heating demand commands can be initiated by the user or automatically by the system. When the target air conditioner indoor unit receives a heating demand command, it means that the target air conditioner indoor unit needs to start heating operation. At this time, the target air conditioner indoor unit has just started. To address the issue of low air outlet temperature at this time, it is necessary to control the opening degree of multiple secondary opening and closing doors to enter a low-wind state. That is, the first opening and closing door of the target air conditioner indoor unit is closed, and this door is not activated. The second opening and closing door is opened to the first angle, so that the air volume of the lower air outlet is 0. Figure 3 As shown, in this light breeze state, the opening and closing of the door directs the airflow towards the upper part of the indoor space. In this embodiment, the first angle refers to the maximum angle at which the second door opens inward. At this angle, the first angle is close to the angle that can block the lower outlet, reducing its airflow to 0. The closing angle of the first door refers to the maximum angle at which the first door opens outward, blocking part of the side air outlet and reducing the airflow from the side air outlet to achieve a light breeze state. In this embodiment, the first door has two positions: the closed position and the second angle position. The second door has three angles: the closed position, the first angle, and the third angle position between the closed position and the first angle position.

[0093] Step A12: When the heating operation time reaches the preset duration, turn on the indoor fan of the target air conditioner indoor unit, and obtain the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the heat exchanger in the middle of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit.

[0094] It should be noted that after the target air conditioner's indoor unit starts heating operation and continues for the preset heating duration, the indoor fan of the target air conditioner's indoor unit is turned on. During the initial short period after heating operation begins, the outlet air temperature is low, and the indoor fan operates at low speed. Multiple open and closed doors, creating a gentle breeze, direct the low-volume cool air upwards towards the ceiling, avoiding direct airflow onto the user's activity area. In this embodiment, the preset duration can be set to 5 to 10 seconds, and can also be adjusted according to needs; this embodiment does not impose any limitations on this.

[0095] Step S20: Adjust the opening and closing angle of the door according to at least one of the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the middle part of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit.

[0096] It should be noted that when the heating operation time reaches the preset duration, the indoor ambient temperature T1, the temperature in the middle of the heat exchanger T2, and the target set temperature Ts of the target air conditioner indoor unit are obtained, and a condition judgment is made based on one or more of the above parameters. Based on the condition judgment result, the opening and closing angle of the door is adjusted, thereby changing the air volume of the side air outlet and the bottom air outlet and improving the indoor thermal comfort.

[0097] This embodiment, after the heating operation has reached a preset duration, acquires the indoor ambient temperature of the target air conditioner indoor unit, the temperature at the center of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit, which is an air conditioner indoor unit with heating demand. The opening and closing angle of the door is adjusted based on at least one of these three factors. By adjusting the opening and closing angle of the air conditioner indoor unit in this way, adaptive adjustment of the airflow from the side and bottom air outlets is achieved, improving thermal comfort and user experience while ensuring the reliability of system operation.

[0098] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in the first embodiment described above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 4The indoor unit of the air conditioner also includes a first switch door and a second switch door. The first switch door is used to adjust the airflow of the side air outlet, and the second switch door is used to adjust the airflow of the side air outlet and the airflow of the bottom air outlet. Step S20 includes step S21:

[0099] Step S21: When the temperature in the middle of the heat exchanger of the target air conditioner indoor unit is less than or equal to the first temperature threshold, adjust the first switch door of the target air conditioner indoor unit to the closed angle, and open the second switch door of the target air conditioner indoor unit to the first angle.

[0100] It should be noted that the first temperature threshold Tt1 refers to the first critical temperature value for the change in the states of the first and second open / closed doors. The first temperature threshold Tt1 can be automatically adjusted according to real-time environmental conditions and system operating status, or it can be set by the user. This embodiment does not limit the method of determining the first temperature threshold.

[0101] It is understandable that when the target air conditioner's indoor unit reaches the preset heating time and the temperature T2 in the middle of the heat exchanger of the target air conditioner's indoor unit is ≤ the first temperature threshold Tt1, it indicates that the pipe temperature of the indoor heat exchanger is low, the outlet air temperature is low, the indoor fan is running at a low speed, and multiple doors still need to be in a low-wind state, that is, the first door of the target air conditioner's indoor unit is closed, and the second door of the target air conditioner's indoor unit is opened to the first angle, such as... Figure 3 As shown.

[0102] In one feasible implementation, before step S21, the method may further include: determining a threshold and formulating a strategy based on the indoor ambient temperature of the environment where the target air conditioner indoor unit is located; and determining a first temperature threshold based on the threshold and formulating the strategy.

[0103] It should be noted that in this embodiment, the first temperature threshold Tt1 can be determined based on the indoor ambient temperature T1 of the target air conditioner indoor unit. Specifically, the threshold setting strategy can be set as follows: when T1 ≥ 19℃, Tt1 = 30℃; when 15℃ ≤ T1 < 19℃, Tt1 = T1 + 11℃; when T1 < 15℃, Tt1 = 26℃. The temperature values ​​in the strategy can also be adjusted according to requirements. By selecting the corresponding threshold setting strategy based on the temperature range of the indoor ambient temperature corresponding to the target air conditioner indoor unit, the first temperature threshold can be calculated using the threshold setting strategy.

[0104] In this embodiment, when the temperature in the middle of the heat exchanger of the target air conditioner indoor unit is less than or equal to a first temperature threshold, the first door of the target air conditioner indoor unit is closed, and the second door of the target air conditioner indoor unit is opened to a first angle. This method prevents cold air from blowing into the user's activity area, improving the user experience.

[0105] Based on the first and / or second embodiments of this application, in the third embodiment of this application, the content that is the same as or similar to the first and / or second embodiments described above can be referred to the above description and will not be repeated hereafter. Based on this, please refer to... Figure 5 The indoor unit of the air conditioner also includes a first switch door and a second switch door. The first switch door is used to adjust the airflow of the side air outlet, and the second switch door is used to adjust the airflow of the side air outlet and the airflow of the bottom air outlet. Step S20 further includes steps S01 to S02:

[0106] Step S01: When the temperature in the middle of the heat exchanger of the target air conditioner indoor unit is greater than the first temperature threshold, the target temperature difference of the target air conditioner indoor unit is determined by calculating the difference between the indoor ambient temperature of the target air conditioner indoor unit and the target set temperature of the target air conditioner indoor unit.

[0107] It should be noted that when the heating operation time of the target air conditioner indoor unit reaches the preset time and the temperature T2 in the middle of the heat exchanger of the target air conditioner indoor unit is greater than the first temperature threshold Tt1, the difference between the indoor ambient temperature T1 and the target set temperature Ts of the target air conditioner indoor unit is calculated, so as to obtain the target temperature difference of the target air conditioner indoor unit = target set temperature Ts - indoor ambient temperature T1.

[0108] In one feasible implementation, after step S01, the method may further include: when the target temperature difference is less than or equal to a third temperature threshold, opening the first switch door of the target air conditioner indoor unit to a second angle, and opening the second switch door of the target air conditioner indoor unit to a first angle.

[0109] It should be noted that the second temperature threshold Tt2 refers to the second critical temperature value for the change between the first and second door opening / closing states. The specific value can be determined according to the performance characteristics of the air conditioner indoor unit and can be taken between 5℃ and 7℃, or it can be set according to the needs. The third temperature threshold Tt3 refers to the third critical temperature value for the change between the first and second door opening / closing states. The specific value can be determined according to the performance characteristics of the air conditioner indoor unit and can be taken between -1℃ and 0℃, or it can be set according to the needs.

[0110] Understandably, when the temperature T2 in the middle of the heat exchanger of the target air conditioner indoor unit is greater than the first temperature threshold Tt1, and the target temperature difference Ts-T1 is less than or equal to the third temperature threshold Tt3, it indicates that the room temperature is very close to the target set temperature, nearing the desired temperature. At this time, the fan reduces its operating speed, and multiple doors are kept at a constant temperature, i.e., the first door is opened to the second angle, and the second door is opened to the first angle. By keeping the air guide plate at a constant temperature and reducing the fan's operating speed as the room temperature approaches the set heating temperature, the heating effect is ensured, energy is saved, and the uncomfortable feeling of high airflow and high velocity is avoided for users.

[0111] In practical implementation, the second angle refers to the maximum inward opening angle of the first switch. At this angle, the second angle is close to the angle when the first switch door abuts against the upper sheet metal of the target air conditioner indoor unit, maximizing the airflow from the side air outlet. Multiple switches maintain a constant temperature state, as shown below. Figure 6 As shown, under normal heat conditions, air blows out from the side air outlet, and both the first and second opening doors open inward to form a smooth side airflow channel with the adjacent sheet metal parts.

[0112] In one feasible implementation, after step S01, the method may further include: when the target temperature difference is less than or equal to a second temperature threshold and the target temperature difference is greater than a third temperature threshold, opening the first door of the target air conditioner indoor unit to a second angle and opening the second door of the target air conditioner indoor unit to a third angle.

[0113] It should be noted that when the temperature T2 in the middle of the heat exchanger of the target air conditioner indoor unit is greater than the first temperature threshold Tt1, the target temperature difference Ts-T1 is less than or equal to the second temperature threshold Tt2, and the target temperature difference Ts-T1 is greater than the third temperature threshold Tt3, it indicates that although the room temperature has risen to a certain level, it is not yet very close to the target set temperature. At this time, the fan is still running at a high speed, but the door opening and closing exhibits a second rapid heating mode (i.e., rapid heating state mode 2), that is, the first door opens to the second angle, and the second door opens to the third angle. The hot air is more gently directed to the lower part of the indoor space, resulting in better thermal comfort for the user. In addition, this allows for a larger air outlet channel, smoother airflow, significantly reduced airflow resistance and noise, and avoids excessively high T2 temperature or system pressure, ensuring operational reliability.

[0114] It is understandable that the third angle refers to any angle between the closing angle of the second door and the first angle, that is, the second door opening inward at a certain angle. The third angle can be determined according to the internal structure of the target air conditioner indoor unit. The closing angle of the second door refers to the maximum angle at which the second door opens outward, allowing it to form a smooth airflow path. Multiple doors present a second rapid heating mode, such as... Figure 7As shown, opening and closing the doors significantly enlarges the air outlet flow, increasing airflow and gently guiding hot air towards the lower part of the room, resulting in better thermal comfort. Furthermore, in Mode 2 during rapid heating, the combined operation of multiple doors creates two smoother airflow paths—the side air outlet and the bottom air outlet—greatly reducing airflow resistance and noise. Simultaneously, it prevents excessively high T2 temperatures or system pressures, ensuring reliable operation.

[0115] Step S02: When the target temperature difference is greater than the second temperature threshold, adjust the first switch door of the target air conditioner indoor unit to the closing angle, and adjust the second switch door of the target air conditioner indoor unit to the closing angle, that is, the first switch door and the second switch door are completely closed, and the side air outlet is in a completely closed state.

[0116] It should be noted that when the temperature T2 in the middle of the heat exchanger of the target air conditioner indoor unit is greater than the first temperature threshold Tt1, and the target temperature difference Ts-T1 is greater than the second temperature threshold Tt2, it indicates that the indoor temperature is low and far from the target set temperature. At this time, the fan operates at high speed, and multiple doors are in the first rapid heating mode (i.e., rapid heating state mode 1), meaning the first and second doors are closed, leaving the lower air outlet unobstructed, maximizing the airflow from the lower outlet. As temperature T2 gradually increases, the outlet air temperature rises continuously, and the fan operates at high speed, vertically and rapidly directing the hot air downwards to the lower part of the indoor space. This helps to quickly raise the indoor temperature and achieve the effect of heating and warming the feet. Multiple doors in the first rapid heating mode are as follows: Figure 8 As shown, both the first and second doors are closed, meaning neither is activated. At this time, the side air vents are closed, thus achieving the effect of heating the feet.

[0117] It is understandable that, in addition to the control methods mentioned above, multiple doors can also be controlled in the following ways, with the temperature range for door opening / closing state changes as follows: Figure 9As shown, specifically: when the temperature T2 in the middle of the heat exchanger of the target air conditioner indoor unit rises to a level greater than the first temperature threshold Tt1, when Ts-T1 ≤ the third temperature threshold Tt3, multiple opening and closing doors enter a normal heat state, i.e., the first opening and closing door opens to the second angle, and the second opening and closing door opens to the first angle; when Ts-T1 increases to a level greater than Tt3 + ΔTt, the opening and closing doors exit the normal heat state and enter a second rapid heating mode, i.e., the first opening and closing door opens to the second angle, and the second opening and closing door opens to the third angle. When Ts-T1 continues to increase to a level greater than Tt2 + ΔTt, multiple opening and closing doors exit the second rapid heating mode and enter the first rapid heating mode, i.e., the first opening and closing door closes, and the second opening and closing door also closes. At this time, if Ts-T1 decreases to a level less than Tt2, multiple opening and closing doors exit the first rapid heating mode and enter the second rapid heating mode. In this embodiment, ΔTt is a set threshold value for the change of the opening and closing door state, which can be taken from 1℃ to 2℃, and can also be adjusted according to needs. This embodiment does not impose any restrictions on this.

[0118] This embodiment determines the target temperature difference of the target air conditioner indoor unit by calculating the difference between the indoor ambient temperature and the target set temperature of the target air conditioner indoor unit when the temperature in the middle of the heat exchanger of the target air conditioner indoor unit exceeds a first temperature threshold. When the target temperature difference exceeds a second temperature threshold, the first switch door of the target air conditioner indoor unit is closed, and the second switch door of the target air conditioner indoor unit is adjusted to be closed. Through this method, the angles of multiple switch doors are adjusted to different angles under different operating conditions, thereby achieving rapid heating while ensuring the reliability of system operation.

[0119] For example, to help understand the implementation flow of the air conditioner control method obtained by combining this embodiment with the above embodiment one, please refer to... Figure 10 , Figure 10A simplified flowchart of an air conditioner's control is provided, specifically: S1, the air conditioner operates in heating mode. S2, the air deflector initially displays a gentle breeze, and after n seconds, the indoor fan starts operating at a low speed. Simultaneously, the values ​​of each temperature sensor are monitored. Here, n can be between 5 and 10 seconds, depending on the performance characteristics of each indoor unit. S3, determine if T2 satisfies T2≤Tt1. S4, if T2≤Tt1 is satisfied, it indicates that the pipe temperature of the indoor heat exchanger is low, and the outlet air temperature is low. At this time, the fan operates at a low speed, and the air deflector displays a gentle breeze. The process returns to step S3. S5, if T2≤Tt1 is not satisfied, determine if Ts-T1≤Tt2 is satisfied. S6, if Ts-T1≤Tt2 is not satisfied, it indicates that the indoor temperature is low and far from the set target temperature. At this time, the fan operates at a high speed, and the air deflector displays a rapid heating mode 1. The hot air is directed vertically downwards and blown directly and quickly towards the ground, which helps to quickly raise the indoor temperature and achieve the effect of heating the feet. The process then returns to step S5. In S7, if Ts-T1≤Tt2 is satisfied, it indicates that the room temperature has risen to a certain level. Next, it is further determined whether Ts-T1≤Tt3 is satisfied. In S8, if Ts-T1≤Tt3 is not satisfied, it indicates that although the room temperature has risen to a certain level, it is not yet very close to the set target temperature. At this time, the fan still operates at a high speed, but the air guide plate is in rapid heating mode 2. The hot air is more gently directed to the lower part of the indoor space, resulting in better thermal comfort for the user. Furthermore, this results in a larger air outlet channel, smoother airflow, significantly reduced air resistance and airflow noise, and avoids excessively high T2 temperature or system pressure, ensuring operational reliability. The process then returns to step S7. In S9, if Ts-T1≤Tt3 is satisfied, it indicates that the room temperature is very close to the set heating temperature, approaching the target temperature. At this point, the fan reduces its operating speed, and the air guide plate remains at a constant temperature. Maintaining a constant temperature for the air guide plate and reducing the fan speed when the room temperature is close to the set heating temperature ensures effective heating while saving energy and avoiding the uncomfortable draft caused by high airflow. The process then returns to step S3.

[0120] 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 air conditioner in this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0121] This application also provides a control device for an air conditioner; please refer to [reference needed]. Figure 11 The control device of the air conditioner includes:

[0122] The acquisition module 10 is used to acquire the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the heat exchanger in the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit when the heating operation time reaches a preset time. The target air conditioner indoor unit is an air conditioner indoor unit with heating demand.

[0123] The adjustment module 20 is used to adjust the opening and closing angle of the door according to at least one of the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the middle part of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit.

[0124] In one embodiment, the acquisition module 10 is further configured to, in response to the heating demand command of the target air conditioner indoor unit, close the first switch door of the target air conditioner indoor unit and open the second switch door of the target air conditioner indoor unit to a first angle; when the heating operation time reaches a preset duration, turn on the indoor fan of the target air conditioner indoor unit and acquire the indoor ambient temperature of the environment where the target air conditioner indoor unit is located, the temperature of the middle part of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit.

[0125] In one embodiment, the adjustment module 20 is further configured to close the first switch door of the target air conditioner indoor unit and open the second switch door of the target air conditioner indoor unit to a first angle when the temperature in the middle of the heat exchanger of the target air conditioner indoor unit is less than or equal to a first temperature threshold.

[0126] In one embodiment, the adjustment module 20 is further configured to determine a threshold and formulate a strategy based on the indoor ambient temperature of the environment where the target air conditioner indoor unit is located; and to determine a first temperature threshold based on the threshold and formulating the strategy.

[0127] In one embodiment, the adjustment module 20 is further configured to, when the temperature in the middle of the heat exchanger of the target air conditioner indoor unit is greater than a first temperature threshold, calculate the difference between the indoor ambient temperature of the target air conditioner indoor unit and the target set temperature of the target air conditioner indoor unit to determine the target temperature difference of the target air conditioner indoor unit; when the target temperature difference is greater than a second temperature threshold, close the first switch door of the target air conditioner indoor unit and adjust the second switch door of the target air conditioner indoor unit to be closed.

[0128] In one embodiment, the adjustment module 20 is further configured to open the first door of the target air conditioner indoor unit to a second angle and the second door of the target air conditioner indoor unit to a third angle when the target temperature difference is less than or equal to a second temperature threshold and the target temperature difference is greater than a third temperature threshold.

[0129] In one embodiment, the adjustment module 20 is further configured to open the first door of the target air conditioner indoor unit to a second angle and open the second door of the target air conditioner indoor unit to a first angle when the target temperature difference is less than or equal to a third temperature threshold.

[0130] This embodiment, after the heating operation has reached a preset duration, acquires the indoor ambient temperature of the target air conditioner indoor unit, the temperature at the center of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit, which is an air conditioner indoor unit with heating demand. The opening and closing angle of the door is adjusted based on at least one of these three factors. By adjusting the opening and closing angle of the air conditioner indoor unit in this way, adaptive adjustment of the airflow from the side and bottom air outlets is achieved, improving thermal comfort and user experience while ensuring the reliability of system operation.

[0131] The air conditioner control device provided in this application, employing the air conditioner control method described in the above embodiments, can solve the technical problem in the prior art where air conditioners cannot simultaneously guarantee thermal comfort and system operational reliability during heating. Compared with the prior art, the beneficial effects of the air conditioner control device provided in this application are the same as those of the air conditioner control method provided in the above embodiments, and other technical features in the air conditioner control device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0132] This application provides an air conditioner, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, which are executed by the at least one processor to enable the at least one processor to perform the control method of the air conditioner in the first embodiment described above.

[0133] The following is for reference. Figure 12 The diagram illustrates a structural schematic of an air conditioner suitable for implementing embodiments of this application. The air conditioner in these embodiments may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 12The air conditioner shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of this application.

[0134] like Figure 12 As shown, the air conditioner may include a processing device 1001 (e.g., a central processing unit, a graphics processor, etc.) that can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the air conditioner. The processing device 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touchscreen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. The communication device 1009 allows the air conditioner to communicate wirelessly or wiredly with other devices to exchange data. Although the figure shows an air conditioner with various systems, 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 alternatively.

[0135] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, 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 flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0136] The air conditioner provided in this application, employing the control method of the air conditioner in the above embodiments, can solve the technical problem in the prior art where air conditioners cannot simultaneously guarantee thermal comfort and system operational reliability during heating. Compared with the prior art, the beneficial effects of the air conditioner provided in this application are the same as those of the control method of the air conditioner provided in the above embodiments, and other technical features of this air conditioner are the same as those disclosed in the method of the previous embodiment, and will not be repeated here.

[0137] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. 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.

[0138] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0139] 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 air conditioner control method of the above embodiments.

[0140] 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.

[0141] 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.

[0142] The aforementioned computer-readable storage medium carries one or more programs that, when executed by the air conditioner, cause the air conditioner to: acquire, when the heating operation time reaches a preset duration, the indoor ambient temperature of the target air conditioner indoor unit, the temperature at the center of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit, wherein the target air conditioner indoor unit is an air conditioner indoor unit with heating demand; and adjust the angle of the door opening / closing according to at least one of the indoor ambient temperature of the target air conditioner indoor unit, the temperature at the center of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit.

[0143] 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).

[0144] 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.

[0145] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0146] 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 air conditioner described above. This solves the technical problem in the prior art where air conditioners cannot simultaneously guarantee thermal comfort and system operational reliability during heating. 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 control method of the air conditioner provided in the above embodiments, and will not be elaborated upon here.

[0147] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the air conditioner control method described above.

[0148] The computer program product provided in this application can solve the technical problem in the prior art that air conditioners cannot simultaneously guarantee thermal comfort and system operational reliability when heating. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as those of the air conditioner control method provided in the above embodiments, and will not be repeated here.

[0149] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A control method for an air conditioner, characterized in that, The control method for the air conditioner is applied to the air conditioner, which includes: an outdoor unit and at least one indoor unit. The outdoor unit is connected to each indoor unit. The indoor unit includes: a side air outlet, a bottom air outlet, and at least two doors. The doors are used to adjust the air volume of the side air outlet and the bottom air outlet. The control method for the air conditioner includes: The indoor unit of the air conditioner starts heating operation. When the heating operation time reaches the preset time, the indoor ambient temperature of the target indoor unit, the temperature of the heat exchanger in the target indoor unit, and the target set temperature of the target indoor unit are obtained. The target indoor unit is an indoor unit with heating demand. The opening angle of the door is adjusted according to at least one of the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the middle part of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit. The step of adjusting the opening and closing angle of the door based on at least one of the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the middle part of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit includes: When the temperature in the middle of the heat exchanger of the target air conditioner indoor unit is less than or equal to the first temperature threshold, the opening of the switch door is controlled to enter the low-wind state, blocking the lower outlet and partially blocking the side air outlet to achieve the low-wind state.

2. The method as described in claim 1, characterized in that, The indoor unit of the air conditioner also includes an indoor fan, a first switch door and a second switch door. The first switch door is used to adjust the air volume of the side air outlet, and the second switch door is used to adjust the air volume of the side air outlet and the air volume of the bottom air outlet. The step of obtaining the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the heat exchanger in the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit when the heating operation time reaches the preset time includes: In response to the heating demand command of the target air conditioner indoor unit, the first door of the target air conditioner indoor unit is adjusted to the closed angle, and the second door of the target air conditioner indoor unit is opened to the first angle; When the heating operation time reaches the preset duration, the indoor fan of the target air conditioner indoor unit is turned on, and the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the heat exchanger in the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit are obtained.

3. The method as described in claim 1, characterized in that, The indoor unit of the air conditioner also includes a first switch door and a second switch door. The first switch door is used to adjust the air volume of the side air outlet, and the second switch door is used to adjust the air volume of the side air outlet and the air volume of the bottom air outlet. The step of adjusting the opening and closing angle of the door based on at least one of the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the middle part of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit includes: When the temperature in the middle of the heat exchanger of the target air conditioner indoor unit is less than or equal to the first temperature threshold, the first door of the target air conditioner indoor unit is adjusted to the closed angle, and the second door of the target air conditioner indoor unit is opened to the first angle.

4. The method as described in claim 3, characterized in that, Also includes: A strategy is formulated based on the indoor ambient temperature of the target air conditioner indoor unit. A strategy is developed based on the threshold to determine the first temperature threshold.

5. The method as described in claim 1, characterized in that, The indoor unit of the air conditioner also includes a first switch door and a second switch door. The first switch door is used to adjust the air volume of the side air outlet, and the second switch door is used to adjust the air volume of the side air outlet and the air volume of the bottom air outlet. The step of adjusting the opening and closing angle of the door based on at least one of the indoor ambient temperature of the target air conditioner indoor unit, the temperature of the middle part of the heat exchanger of the target air conditioner indoor unit, and the target set temperature of the target air conditioner indoor unit includes: When the temperature in the middle of the heat exchanger of the target air conditioner indoor unit is greater than the first temperature threshold, the target temperature difference of the target air conditioner indoor unit is determined by calculating the difference between the indoor ambient temperature of the target air conditioner indoor unit and the target set temperature of the target air conditioner indoor unit. When the target temperature difference is greater than the second temperature threshold, the first door of the target air conditioner indoor unit is adjusted to the closing angle, and the second door of the target air conditioner indoor unit is adjusted to the closing angle.

6. The method as described in claim 5, characterized in that, After the step of calculating the difference between the indoor ambient temperature of the target air conditioner indoor unit and the target set temperature of the target air conditioner indoor unit to determine the target temperature difference of the target air conditioner indoor unit, the method further includes: When the target temperature difference is less than or equal to the second temperature threshold and the target temperature difference is greater than the third temperature threshold, the first switch door of the target air conditioner indoor unit is opened to the second angle, and the second switch door of the target air conditioner indoor unit is opened to the third angle. The second angle refers to the maximum angle at which the first switch door opens inward, and the third angle refers to any angle between the closing angle of the second switch door and the first angle.

7. The method as described in claim 5, characterized in that, After the step of calculating the difference between the indoor ambient temperature of the target air conditioner indoor unit and the target set temperature of the target air conditioner indoor unit to determine the target temperature difference of the target air conditioner indoor unit, the method further includes: When the target temperature difference is less than or equal to the third temperature threshold, the first door of the target air conditioner indoor unit is opened to the second angle, and the second door of the target air conditioner indoor unit is opened to the first angle.

8. An air conditioner, characterized in that, The air conditioner implements the control method of the air conditioner according to any one of claims 1 to 7. The air conditioner includes: an outdoor unit and at least one indoor unit. The outdoor unit is connected to each indoor unit. The indoor unit includes: a side air outlet, a bottom air outlet, and at least two opening and closing doors. The opening and closing doors are used to adjust the air volume of the side air outlet and the bottom air outlet.

9. The air conditioner as described in claim 8, characterized in that, The indoor unit of the air conditioner also includes an indoor fan, a first switch door, and a second switch door. The first switch door is used to adjust the air volume of the side air outlet, and the second switch door is used to adjust the air volume of the side air outlet and the air volume of the bottom air outlet.

10. The air conditioner as described in claim 9, characterized in that, When the target air conditioner indoor unit receives a heating demand command, under a light breeze condition, the first door of the target air conditioner indoor unit is in a closed angle, and the second door of the target air conditioner indoor unit is in a first angle, which refers to the maximum angle at which the second door opens inward.

11. The air conditioner as described in claim 10, characterized in that, Under normal heat conditions, the first switch door of the target air conditioner indoor unit is at the second angle, and the second switch door of the target air conditioner indoor unit is at the first angle. The second angle refers to the maximum angle at which the first switch opens inward.

12. The air conditioner as described in claim 10, characterized in that, In the second rapid heating mode, the first switch door of the target air conditioner indoor unit is at the second angle, and the second switch door of the target air conditioner indoor unit is at the third angle. The third angle refers to any angle between the closing angle of the second switch door and the first angle.

13. The air conditioner as described in claim 10, characterized in that, In the first rapid heating mode, the first door of the target air conditioner indoor unit is in a closed angle, and the second door of the target air conditioner indoor unit is in a closed angle.

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