Air conditioner indoor unit, air conditioner and its control method

Abstract

This invention provides an indoor air conditioning unit, an air conditioner, and a control method thereof. The indoor air conditioning unit includes: a housing forming an air duct, with an air inlet and an air outlet at each end of the air duct; a cross-flow fan disposed in the air duct; an indoor heat exchanger including a first pipe section, a second pipe section, and a third pipe section connected in sequence; a first distributor rotatably disposed at the air inlet, opposite to the first pipe section; a second distributor rotatably disposed at the air inlet, opposite to the second pipe section and / or the third pipe section; a first temperature sensor, a second temperature sensor, a third temperature sensor, and a controller, wherein the first temperature sensor is disposed in the first pipe section, the second temperature sensor is disposed in the second pipe section, and the third temperature sensor is disposed in the third pipe section. The indoor air conditioning unit provided by this invention achieves precise adjustment of the airflow distribution in the air duct by detecting the temperature of different pipe sections and precisely controlling the rotation of the first and second distributors.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, and in particular to an indoor air conditioner unit, an air conditioner, and a control method thereof. Background Technology

[0002] In the design of air conditioning indoor units, cross-flow fans are widely used due to their unique airflow transmission method. However, due to the suction characteristics of cross-flow fans, the air volume passing through some sections of the heat exchanger is relatively large, resulting in excessively fast airflow velocity. This uneven airflow distribution leads to reduced heat exchange efficiency in some sections, thus affecting the overall performance and energy efficiency of the air conditioner.

[0003] Traditional air conditioner indoor unit designs face significant challenges in controlling the uniformity of airflow across the heat exchanger tubes. Uneven airflow velocity can prevent some tube sections from receiving adequate cooling or heating, thus affecting the air conditioner's cooling or heating performance. This not only reduces the air conditioner's efficiency but also increases energy consumption, ultimately impacting its performance. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in related technologies. To this end, this invention proposes an indoor air conditioning unit, an air conditioner, and a control method thereof, which solves the problem of uneven airflow velocity in existing air conditioners, which prevents some pipe sections from being adequately cooled or heated, thereby affecting the cooling or heating effect of the air conditioner.

[0005] An indoor air conditioning unit according to a first aspect embodiment of the present invention includes:

[0006] The shell has an air duct, and the two ends of the air duct are respectively provided with an air inlet and an air outlet;

[0007] A cross-flow fan is installed in the air duct;

[0008] An indoor heat exchanger includes a first pipe section, a second pipe section, and a third pipe section connected in sequence, all of which are disposed in the air duct.

[0009] The first distributor is rotatably mounted at the air inlet and is positioned opposite to the first pipe section;

[0010] The second distributor is rotatably disposed at the air inlet and is disposed opposite to the second pipe section and / or the third pipe section;

[0011] The system comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, and a controller. The first temperature sensor is disposed in the first pipe section, the second temperature sensor is disposed in the second pipe section, and the third temperature sensor is disposed in the third pipe section. The controller is electrically connected to the first splitter, the second splitter, the first temperature sensor, the second temperature sensor, and the third temperature sensor to control the first splitter and the second splitter to adjust the airflow of the first pipe section, the second pipe section, and the third pipe section by detecting the temperature.

[0012] According to one embodiment of the present invention, the first splitter includes: a first splitter plate and a first drive mechanism;

[0013] The first diverter plate is rotatably disposed at the air inlet and is disposed opposite to the first pipe section; the first drive mechanism is electrically connected to the controller, and the drive end of the first drive mechanism is connected to the first diverter plate to drive the first diverter plate to rotate, so as to adjust the air volume flowing through the first pipe section.

[0014] According to one embodiment of the present invention, the second splitter includes: a second splitter plate and a second drive mechanism;

[0015] The second diverter plate is rotatably disposed at the air inlet, opposite to the second pipe section and / or the third pipe section; the second drive mechanism is electrically connected to the controller, and the drive end of the second drive mechanism is connected to the second diverter plate to drive the second diverter plate to rotate, thereby adjusting the airflow through the second pipe section.

[0016] According to one embodiment of the present invention, the air inlet is provided with a first diversion zone, a second diversion zone and a third diversion zone arranged sequentially;

[0017] The first pipe segment corresponds to the first diversion zone, the second pipe segment corresponds to the second diversion zone, and the third pipe segment corresponds to the third diversion zone;

[0018] The first diverter plate is rotatably disposed in the first diverter zone, and the second diverter plate is rotatably disposed at the boundary line between the second diverter zone and the second diverter zone.

[0019] According to one embodiment of the present invention, the first diverter plate and the second diverter plate are rotatable between a first rotation angle and a second rotation angle;

[0020] When the first diverter plate is rotated to the first rotation angle, the first diverter plate is perpendicular to the air inlet to fully expose the air blown into the first pipe section from the first diversion area; when the first diverter plate is rotated to the second rotation angle, the first diverter plate at least partially blocks the first diversion area.

[0021] When the second diverter plate is rotated to the first rotation angle, the second diverter plate is perpendicular to the air inlet to fully expose the air blown into the second pipe section from the second diverter area; when the second diverter plate is rotated to the second rotation angle, the second diverter plate at least partially blocks the second diverter area.

[0022] An air conditioner provided according to a second aspect of the present invention includes: the above-described air conditioner indoor unit.

[0023] A control method for an indoor air conditioning unit according to a third aspect embodiment of the present invention includes:

[0024] The first temperature detected by the first temperature sensor, the second temperature detected by the second temperature sensor, and the third temperature detected by the third temperature sensor are obtained.

[0025] The first distributor is adjusted based on the first difference between the first temperature and the second temperature to regulate the air volume at the first pipe section;

[0026] The second distributor is adjusted based on the second difference between the second and third temperatures to regulate the airflow at the second and / or third pipe sections.

[0027] According to an embodiment of the present invention, the step of adjusting the first distributor based on the first difference between the first temperature and the second temperature to regulate the airflow at the first pipe section includes:

[0028] If the first temperature is greater than the second temperature, then adjust the angle between the first distributor plate and the air inlet direction to the first preset angle; where the first preset angle α = 5° × A, and A is the absolute value of the difference between the first temperature and the second temperature;

[0029] If the first temperature is less than or equal to the second temperature, adjust the first distributor plate so that the air inlet is perpendicular.

[0030] According to an embodiment of the present invention, the step of adjusting the second splitter based on the second difference between the second temperature and the third temperature to regulate the airflow at the second pipe section and / or the third pipe section includes:

[0031] If the second temperature is greater than the third temperature, then adjust the angle between the second splitter plate and the air inlet direction to the second preset angle; where the second preset angle β = 15° × B, and B is the absolute value of the difference between the second temperature and the third temperature;

[0032] If the second temperature is less than or equal to the third temperature, then adjust the angle between the second distributor plate and the air inlet direction to the third preset angle; where the third preset angle γ = -15° × B, and B is the absolute value of the difference between the second temperature and the third temperature.

[0033] According to one embodiment of the present invention, the first preset angle is 0° to 30°, the second preset angle is 0° to 90°, and the third preset angle is -90° to 0°.

[0034] The air conditioner indoor unit provided by this invention precisely controls the rotation of the first and second distributors by detecting the temperature of different pipe sections, thus achieving precise adjustment of the airflow distribution in the duct. This makes the airflow in each pipe section of the heat exchanger more uniform, effectively solving the problem of low heat exchange efficiency in some pipe sections due to excessive airflow. The uniform airflow distribution not only improves heat exchange efficiency but also makes the cooling or heating effect more uniform, significantly improving the performance of the air conditioner. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is one of the schematic diagrams showing the rotation of the splitter in the indoor unit of an air conditioner according to an embodiment of the present invention;

[0037] Figure 2 This is a second schematic diagram of the rotation of the splitter in the indoor unit of an air conditioner provided in an embodiment of the present invention;

[0038] Figure 3 A schematic diagram of an air conditioner indoor unit provided in an embodiment of the present invention;

[0039] Figure 4 A flowchart of a control method for an indoor air conditioning unit provided in an embodiment of the present invention;

[0040] Figure 5 A schematic diagram illustrating the principle of the control method for an indoor air conditioner provided in an embodiment of the present invention;

[0041] Figure 6 A schematic structural diagram of the controller provided in an embodiment of the present invention;

[0042] Figure 7 This is a schematic structural diagram of an air conditioner provided in an embodiment of the present invention.

[0043] Figure label:

[0044] 10. Housing; 110. Air inlet; 120. Air outlet; 20. Cross-flow fan; 30. Indoor heat exchanger; 310. First pipe section; 320. Second pipe section; 330. Third pipe section; 40. First distributor; 410. First distributor plate; 420. First drive mechanism; 50. First temperature sensor; 60. Second temperature sensor; 70. Third temperature sensor; 80. Second distributor; 810. Second distributor plate; 820. Second drive mechanism;

[0045] 610. Acquisition module; 620. First adjustment module; 630. Second adjustment module; 710. Processor; 720. Communication interface; 730. Memory; 740. Communication bus. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the invention clearer, the technical solutions of the invention will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0047] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0049] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] An indoor air conditioning unit according to a first aspect embodiment of the present invention. For example... Figures 1 to 3 As shown, the indoor unit of the air conditioner includes: a housing 10, a cross-flow fan 20, an indoor heat exchanger 30, a first distributor 40, a second distributor 80, a first temperature sensor 50, a second temperature sensor 60, a third temperature sensor 70, and a controller.

[0052] In this embodiment, the housing 10 is the main structure of the indoor unit of the air conditioner, forming an air duct for air circulation. An air inlet 110 and an air outlet 120 are respectively provided at both ends of the air duct. The air inlet 110 is used to draw in indoor air, and the air outlet 120 is used to discharge treated air, thereby achieving indoor air circulation.

[0053] The cross-flow fan 20 is installed in the air duct and is a key component that drives airflow. When the cross-flow fan 20 is running, it can draw in outdoor air from the air inlet 110, and after passing through the indoor heat exchanger 30, it can be discharged from the air outlet 120.

[0054] The indoor heat exchanger 30 includes a first pipe section 310, a second pipe section 320, and a third pipe section 330 connected in sequence. All three pipe sections are located in an air duct and are used to exchange heat with the passing air, thereby achieving cooling or heating functions. Compared to the second and third pipe sections 320, the first pipe section 310 is closer to the cross-flow fan 20 and the air outlet 120, resulting in a higher air velocity. This leads to a shorter residence time of air on the surface of the first pipe section 310, insufficient heat transfer, and a higher risk of overheating compared to the other pipe sections.

[0055] The first diverter 40 and the second diverter 80 are key components of this invention. The first diverter 40 is rotatably mounted at the air inlet 110, opposite to the first pipe section 310. By adjusting the rotation of the first diverter 40, the airflow through the first pipe section 310 can be controlled. The second diverter 80 is rotatably mounted at the air inlet 110, opposite to the second pipe section 320 and / or the third pipe section 330. By adjusting the rotation of the second diverter 80, the airflow through the second pipe section 320 and / or the third pipe section 330 can be controlled, thereby achieving precise control of the airflow distribution.

[0056] A first temperature sensor 50 is disposed in the first pipe section 310 and is used to detect the temperature at the first pipe section 310. A second temperature sensor 60 is disposed in the second pipe section 320 and is used to detect the temperature at the second pipe section 320. A third temperature sensor 70 is disposed in the third pipe section 330 and is used to detect the temperature at the third pipe section 330.

[0057] The controller is electrically connected to the first splitter 40, the second splitter 80, the first temperature sensor 50, the second temperature sensor 60, and the third temperature sensor 70. These temperature sensors provide the controller with accurate temperature data so that the controller can precisely adjust the rotation of the first splitter 40 and the second splitter 80 based on this data, thereby controlling the airflow of the first pipe section 310, the second pipe section 320, and the third pipe section 330 by detecting the temperature.

[0058] In practical applications, the controller can determine the first difference between the first temperature and the second temperature, and the second difference between the second temperature and the third temperature, based on the first temperature detected by the first temperature sensor, the second temperature detected by the second temperature sensor, and the third temperature detected by the third temperature sensor. It can then determine the heat exchange efficiency of each pipe section of the indoor heat exchanger 30 and adjust the rotation of the first distributor 40 and the second distributor 80 accordingly.

[0059] Under normal circumstances, due to the air intake characteristics of the cross-flow fan 20, the air volume through the first pipe section 310 on the evaporator is large and the air flow velocity is fast, resulting in low thermal efficiency of the first pipe section 310.

[0060] For example, such as Figure 3 As shown, during the air conditioner's cooling process, when the temperature detected by the first temperature sensor 50 is much higher than the temperature detected by the second temperature sensor 60, and the temperature detected by the second temperature sensor 60 is much higher than the temperature detected by the third temperature sensor 70, it indicates that the heat exchange efficiency of the first pipe section 310 and the second pipe section 320 is low. At this time, the controller can control the first distributor 40 and the second distributor 80 to rotate, blocking the air directed towards the first pipe section 310 and the second pipe section 320, reducing the amount of air blown towards the first pipe section 310 and the second pipe section 320, and lowering their temperature.

[0061] The air conditioner indoor unit provided by this invention precisely controls the rotation of the first and second distributors by detecting the temperature of different pipe sections, thus achieving precise adjustment of the airflow distribution in the duct. This makes the airflow in each pipe section of the heat exchanger more uniform, effectively solving the problem of low heat exchange efficiency in some pipe sections due to excessive airflow. The uniform airflow distribution not only improves heat exchange efficiency but also makes the cooling or heating effect more uniform, significantly improving the performance of the air conditioner.

[0062] In one example, such as Figures 1 to 3 As shown, the first diverter 40 includes a first diverter plate 410 and a first drive mechanism 420. The first diverter plate 410 is disposed opposite to the first pipe section 310. By changing the rotation angle of the first diverter plate 410, the flow area of ​​the air duct can be controlled, thereby achieving precise adjustment of the air volume.

[0063] The first drive mechanism 420 is electrically connected to the controller. The drive end of the first drive mechanism 420 is connected to the first diverter plate 410, and is used to drive the first diverter plate 410 to rotate, thereby adjusting the airflow through the first pipe section 310. The first drive mechanism 420 can be a motor, stepper motor, or other type of power device, capable of providing sufficient driving force and precisely controlling the rotation angle of the first diverter plate 410. Through cooperation with the controller, the first drive mechanism 420 can precisely adjust the rotation of the first diverter plate 410 according to control commands, thereby achieving fine control of the airflow distribution.

[0064] During actual operation, the controller calculates the required airflow distribution based on the temperature data detected by the temperature sensor. Then, the controller sends a control command to the first drive mechanism 420. Upon receiving the command, the first drive mechanism 420 drives the first distributor plate 410 to rotate to the corresponding angle. By continuously adjusting the rotation of the first distributor plate 410, the airflow through the first pipe section 310 can be regulated, thereby optimizing the airflow distribution and improving heat exchange efficiency.

[0065] Accordingly, the second diverter 80 includes a second diverter plate 810 and a second drive mechanism 820. The second diverter plate 810 is disposed opposite to the second pipe section 320 and / or the third pipe section 330. By changing the rotation angle of the second diverter plate 810, the flow area of ​​the air duct can be controlled, thereby achieving precise adjustment of the air volume.

[0066] The second drive mechanism 820 is electrically connected to the controller. The drive end of the second drive mechanism 820 is connected to the second diverter plate 810 and is used to drive the second diverter plate 810 to rotate, thereby regulating the airflow through the second pipe section 320 and / or the third pipe section 330. The second drive mechanism 820 can be a motor, a stepper motor, or other type of power device, capable of providing sufficient driving force and precisely controlling the rotation angle of the second diverter plate 810. Through cooperation with the controller, the second drive mechanism 820 can precisely adjust the rotation of the second diverter plate 810 according to control commands, thereby achieving fine control of the airflow distribution.

[0067] During actual operation, the controller calculates the required airflow distribution based on the temperature data detected by the temperature sensor. Then, the controller sends a control command to the second drive mechanism 820. Upon receiving the command, the second drive mechanism 820 drives the second distributor plate 810 to rotate to the corresponding angle. By continuously adjusting the rotation of the second distributor plate 810, the airflow through the second pipe section 320 and / or the third pipe section 330 can be adjusted, thereby optimizing the airflow distribution and improving heat exchange efficiency.

[0068] In some embodiments, such as Figures 1 to 3 As shown, the air inlet 110 is provided with a first diversion zone, a second diversion zone, and a third diversion zone arranged sequentially. A first pipe section 310 corresponds to the first diversion zone, a second pipe section 320 corresponds to the second diversion zone, and a third pipe section 330 corresponds to the third diversion zone. That is, air entering from the first diversion zone mainly enters the first pipe section 310, air entering from the second diversion zone mainly enters the second pipe section 320, and air entering from the third diversion zone mainly enters the third pipe section 330. A first diversion plate 410 is rotatably disposed in the first diversion zone, and a second diversion plate 810 is rotatably disposed at the boundary line between the second diversion zones.

[0069] Due to the suction characteristics of the cross-flow fan 20, the airflow through the first pipe section 310 on the evaporator is typically large, resulting in a high air velocity and low thermal efficiency. When the first distributor plate 410 rotates, the airflow through the first pipe section 310 can be adjusted by rotating in the first distribution zone. When the second distributor plate 810 rotates, the airflow through the second pipe section 320 and the third pipe section 330 can be adjusted by rotating in the second and / or third distribution zones.

[0070] In this embodiment, the first diverter plate 410 and the second diverter plate 810 can rotate between a first rotation angle and a second rotation angle.

[0071] like Figure 1 and Figure 2 As shown, when the first diverter plate 410 is rotated to the first rotation angle, the first diverter plate 410 is perpendicular to the air inlet 110. In this state, the air blown into the first pipe section 310 from the first diverter zone is fully exposed; this increases the amount of air passing through the first pipe section 310, which can lower the temperature of the first pipe section 310 during cooling. Figure 2 As shown, when the first diverter plate 410 is rotated to the second rotation angle, the first diverter plate 410 is angled to the air inlet 110. At this time, the first diverter plate 410 at least partially blocks the air inlet 110, thereby blocking at least part of the first diversion area and blocking the air blown into the first pipe section 310 from the air inlet 110. This reduces the amount of air passing through the first pipe section 310, which helps to balance the airflow of each pipe section and avoids a decrease in heat exchange efficiency in the first pipe section 310 due to excessive airflow.

[0072] When the second diverter plate 810 rotates to the first rotation angle, the second diverter plate 810 is perpendicular to the air inlet 110. In this state, the air blown into the second pipe section 320 from the second diverter zone is fully exposed; this increases the amount of air passing through the second pipe section 320, which can lower the temperature of the second pipe section 320 during cooling. Figure 2 As shown, when the second diverter plate 810 is rotated to the second rotation angle, the second diverter plate 810 is angled to the air inlet 110. At this time, the second diverter plate 810 at least partially blocks the air inlet 110, thereby blocking at least part of the second diversion area and blocking the air blown into the second pipe section 320 from the air inlet 110. This reduces the amount of air passing through the second pipe section 320, which helps to balance the airflow of each pipe section and avoids a decrease in heat exchange efficiency in the second pipe section 320 due to excessive airflow.

[0073] It should be noted that the second diverter plate 810 can also be rotated to the third diverter zone to adjust the amount of air passing through the third pipe section 330.

[0074] An air conditioner provided according to a second aspect embodiment of the present invention, such as Figures 1 to 3 As shown, the air conditioner includes the aforementioned indoor air conditioning unit.

[0075] As a core component of an air conditioner, the performance of the indoor unit directly affects the overall operation of the air conditioner. By introducing an indoor unit with precise airflow control, the air conditioner provided in this embodiment of the invention has significantly improved in terms of heat exchange efficiency, energy consumption control, and operational stability. In this indoor unit, the first splitter 40 and the second splitter 80 play a crucial role. Through the precise coordination of the rotatable first splitter 40, the second splitter 80, and two drive mechanisms, the first splitter 40 and the second splitter 80 can adjust the airflow entering each pipe section according to actual needs. The first splitter plate 410 and the second splitter plate 810 can rotate between a first rotation angle and a second rotation angle. This design allows the air conditioner to flexibly adjust the airflow distribution according to actual needs.

[0076] The control method for an indoor air conditioning unit provided in the third aspect embodiment of the present invention, such as Figure 4 As shown, the process includes the following:

[0077] Step S110: Obtain the first temperature detected by the first temperature sensor, the second temperature detected by the second temperature sensor, and the third temperature detected by the third temperature sensor.

[0078] Step S120: Adjust the first distributor based on the first difference between the first temperature and the second temperature to regulate the air volume at the first pipe section.

[0079] Step S130: Adjust the second splitter based on the second difference between the second temperature and the third temperature to regulate the airflow at the second pipe section and / or the third pipe section.

[0080] In this embodiment, the controller first acquires the detected first temperature, second temperature, and third temperature from the first temperature sensor, the second temperature sensor, and the third temperature sensor, respectively. These temperature sensors are arranged at different locations on the indoor unit of the air conditioner to detect the temperature in different areas. The first temperature sensor is located in the first pipe section, the second temperature sensor is located in the second pipe section, and the third temperature sensor is located in the third pipe section.

[0081] Next, the controller calculates the first difference between the first temperature and the second temperature, and the second difference between the second temperature and the third temperature. These differences reflect the temperature differences between different zones and serve as the basis for adjusting the airflow distribution.

[0082] Then, the controller adjusts the first and second splitters based on the calculated first and second differences. The first and second splitters are devices installed inside the indoor unit of the air conditioner, used to regulate the airflow entering different pipe sections. By adjusting the rotation angle of the first splitter using the first difference and the rotation angle of the second splitter using the second difference, the airflow at the first, second, and third pipe sections can be changed.

[0083] By continuously adjusting the first and second splitters, the controller can gradually reduce the temperature differences between different zones, achieving a uniform indoor temperature distribution. Simultaneously, the controller can dynamically adjust the states of the first and second splitters based on the user's set temperature and real-time changes in the indoor environment to meet the user's personalized needs.

[0084] Furthermore, to ensure the accuracy and effectiveness of the control method, the controller can periodically calibrate and inspect the temperature sensor to ensure that the detected temperature data is accurate and reliable. Simultaneously, the controller can optimize and adjust its strategy based on historical data and empirical values ​​to improve control precision and response speed.

[0085] like Figure 5 As shown, step S120: adjusting the first distributor based on the first difference between the first temperature and the second temperature to regulate the airflow at the first pipe section includes:

[0086] Step S1201: If the first temperature is greater than the second temperature, adjust the angle between the first splitter plate and the air inlet direction to the first preset angle; wherein, the first preset angle α = 5° × A, and A is the absolute value of the difference between the first temperature and the second temperature.

[0087] Step S1202: If the first temperature is less than or equal to the second temperature, adjust the first distributor plate so that the air inlet is vertical.

[0088] Specifically, in the initial state, the first splitter plate is perpendicular to the air inlet. The controller first calculates the first difference A between the first temperature T1 and the second temperature T2. Then, the controller determines the rotation angle of the first splitter plate based on the calculated first difference A.

[0089] The controller can adjust the angle of the first diverter plate using either an electric actuator or a mechanical transmission mechanism. Once the angle of the first diverter plate is adjusted to the correct position, the airflow entering the first duct section will change accordingly, thereby achieving a uniform distribution of indoor temperature.

[0090] If the first temperature is greater than the second temperature, the angle between the first distributor plate and the air inlet direction is adjusted to a first preset angle; where the first preset angle α = 5° × A. A is the first difference, which is the absolute value of the difference between the first temperature and the second temperature, in order to reduce the air volume flowing through the first pipe section.

[0091] If the first temperature is less than or equal to the second temperature, adjust the first distributor plate so that it is perpendicular to the air inlet to maintain the airflow through the first pipe section.

[0092] In some embodiments, such as Figure 5As shown, step S130: adjusting the second distributor based on the second difference between the second temperature and the third temperature to regulate the airflow at the second pipe section and / or the third pipe section, includes:

[0093] Step S1301: If the second temperature is greater than the third temperature, adjust the angle between the second splitter plate and the air inlet direction to the second preset angle; where the second preset angle β = 15° × B, and B is the absolute value of the difference between the second temperature and the third temperature.

[0094] Step S1302: If the second temperature is less than or equal to the third temperature, adjust the angle between the second splitter plate and the air inlet direction to the third preset angle; where the third preset angle γ = -15° × B, and B is the absolute value of the difference between the second temperature and the third temperature.

[0095] Specifically, in the initial state, the second splitter plate is perpendicular to the air inlet. The controller first calculates the first difference B between the second temperature T2 and the third temperature T3. Then, the controller determines the rotation angle of the second splitter plate based on the calculated second difference B.

[0096] In actual operation, when the controller detects that the second temperature is higher than the third temperature, it first calculates the absolute value B of the difference. Then, according to the formula β = 15° × B, it calculates the second preset angle β. Finally, the controller controls the second distributor to adjust the angle of the second distributor plate to β. This adjustment reduces the airflow to the second duct section.

[0097] When the second temperature is lower than or equal to the third temperature, the controller first calculates the absolute value B of the difference. Then, according to the formula γ = -15° × B, it calculates the third preset angle γ. The negative sign here indicates that the second distributor plate needs to be adjusted in the opposite direction to reduce the airflow through the third pipe section.

[0098] In some embodiments, the first preset angle is 0° to 30°, the second preset angle is 0° to 90°, and the third preset angle is -90° to 0°.

[0099] For example, during the air conditioning cooling process, when the first difference A (the absolute value of the difference between the first temperature T1 and the second temperature T2) is less than or equal to 6 degrees Celsius, the first preset angle α is adjusted to 5° × A.

[0100] When the first difference A is greater than 6 degrees Celsius, the first preset angle is directly 30 degrees Celsius, that is, the maximum value of the first preset angle is 30°, to ensure that air flows through the first pipe section.

[0101] When the second temperature T2 is greater than the third temperature T3, and the second difference B (the absolute value of the difference between the second temperature T2 and the third temperature T3) is less than or equal to 6 degrees Celsius, the second preset angle β is adjusted to 15° × B.

[0102] When the second temperature T2 is greater than the third temperature T3, and the second difference B is greater than 6 degrees Celsius, the second preset angle is directly 90°, that is, the maximum value of the second preset angle is 90°. Continuing to increase it will lead to an increase in the air flowing through the second pipe section.

[0103] When the second temperature T2 is less than or equal to the third temperature T3, and the second difference B is less than or equal to 6 degrees Celsius, the third preset angle γ is adjusted to -15° × B.

[0104] When the second temperature T2 is less than or equal to the third temperature T3, and the second difference B is greater than 6 degrees Celsius, the third preset angle is directly -90°, that is, the minimum value of the third preset angle is 90°. Further reduction will lead to an increase in the air flowing through the third pipe section.

[0105] The controller provided according to the fourth aspect embodiment of the present invention, please refer to Figure 6 ,include:

[0106] The acquisition module 610 is used to acquire the first temperature detected by the first temperature sensor, the second temperature detected by the second temperature sensor, and the third temperature detected by the third temperature sensor.

[0107] The first adjustment module 620 is used to adjust the first distributor based on the first difference between the first temperature and the second temperature, so as to regulate the air volume at the first pipe section.

[0108] The second adjustment module 630 is used to adjust the second splitter based on the second difference between the second temperature and the third temperature to regulate the air volume at the second pipe section and / or the third pipe section.

[0109] It should be noted that steps S110 to S120 and other steps are for ease of description only and do not constitute a time sequence limitation for the control method of the indoor unit of the air conditioner. Furthermore, some content is described in detail in the control method provided in the third aspect embodiment, and all content in the control method is also applicable to the embodiments provided in the fourth aspect embodiment. Therefore, to avoid repetition, the controller provided in the fourth aspect embodiment is not described in detail. Similarly, the content in the above two aspect embodiments can be used to explain the content of all subsequent aspect embodiments; therefore, repeated content will not be described in the subsequent embodiments. The controller provided according to the embodiments of the present invention has technical effects corresponding to the technical effects of the above control method, and will not be described again here.

[0110] An air conditioner according to a fifth aspect embodiment of the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the steps of the control method for an indoor unit of an air conditioner according to an embodiment of the present invention.

[0111] Figure 7 A schematic diagram of the physical structure of an electronic device is provided. This electronic device may include a processor 710, a communications interface 720, a memory 730, and a communication bus 740. The processor 710, communications interface 720, and memory 730 communicate with each other via the communication bus 740. The processor 710 can call logical instructions stored in the memory 730 to execute a control method for an indoor air conditioning unit. This method includes: acquiring a first temperature detected by a first temperature sensor, a second temperature detected by a second temperature sensor, and a third temperature detected by a third temperature sensor; adjusting a first distributor based on a first difference between the first and second temperatures to regulate the airflow at a first pipe section; and adjusting a second distributor based on a second difference between the second and third temperatures to regulate the airflow at a second pipe section and / or a third pipe section.

[0112] Furthermore, the logical instructions in the aforementioned memory 730 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0113] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0114] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0115] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A control method of an air conditioner indoor unit, characterized in that, the air conditioner indoor unit comprises: a shell formed with an air duct, the air duct having an air inlet and an air outlet at two ends respectively; the air inlet is provided with a first shunt area, a second shunt area and a third shunt area arranged in sequence; a cross-flow fan arranged in the air duct; an indoor heat exchanger comprising a first pipe section, a second pipe section and a third pipe section connected in sequence, the first pipe section, the second pipe section and the third pipe section are all arranged in the air duct; a first shunt device rotatably arranged at the air inlet and arranged opposite to the first pipe section; the first shunt device comprises a first shunt plate; the first pipe section corresponds to the first shunt area, the second pipe section corresponds to the second shunt area, and the third pipe section corresponds to the third shunt area; the first shunt plate is rotatably arranged in the first shunt area; a second shunt device rotatably arranged at the air inlet and arranged opposite to the second pipe section and / or the third pipe section; the second shunt device comprises a second shunt plate; the second shunt plate is rotatably arranged at the boundary line between the second shunt area and the second shunt area; a first temperature sensor, a second temperature sensor, a third temperature sensor and a controller, the first temperature sensor is arranged in the first pipe section, the second temperature sensor is arranged in the second pipe section, the third temperature sensor is arranged in the third pipe section, and the controller is electrically connected with the first shunt device, the second shunt device, the first temperature sensor, the second temperature sensor and the third temperature sensor, so as to control the first shunt device and the second shunt device to adjust the air volume of the first pipe section, the second pipe section and the third pipe section by detecting the temperature; the control method of the air conditioner indoor unit comprises: obtaining a first temperature detected by the first temperature sensor, a second temperature detected by the second temperature sensor and a third temperature detected by the third temperature sensor; adjusting the first shunt device based on a first difference between the first temperature and the second temperature to adjust the air volume at the first pipe section, including: if the first temperature > the second temperature, adjusting the included angle between the first shunt plate and the direction of the air inlet to a first preset angle; wherein the first preset angle a = 5°*|A|, A is the absolute value of the difference between the first temperature and the second temperature; if the first temperature ≤ the second temperature, adjusting the first shunt plate to be perpendicular to the air inlet; adjusting the second shunt device based on a second difference between the second temperature and the third temperature to adjust the air volume at the second pipe section and / or the third pipe section, including: if the second temperature > the third temperature, adjusting the included angle between the second shunt plate and the direction of the air inlet to a second preset angle; wherein the second preset angle β = 15°*|B|, B is the absolute value of the difference between the second temperature and the third temperature; if the second temperature ≤ the third temperature, adjusting the included angle between the second shunt plate and the direction of the air inlet to a third preset angle; wherein the third preset angle γ = -15°*|B|, B is the absolute value of the difference between the second temperature and the third temperature.

2. The control method according to claim 1, characterized by, The first preset angle is 0°-30°, the second preset angle is 0°-90°, and the third preset angle is -90°-0°.

3. The control method according to claim 1, characterized by, The first shunt further comprises a first driving mechanism; The first shunt plate is rotatably arranged at the air inlet and opposite to the first pipe section; the first driving mechanism is electrically connected with the controller, and a driving end of the first driving mechanism is connected with the first shunt plate for driving the first shunt plate to rotate to adjust the air volume flowing through the first pipe section.

4. The control method according to claim 3, characterized by The second shunt further comprises a second driving mechanism; The second shunt plate is rotatably arranged at the air inlet and opposite to the second pipe section and / or the third pipe section; the second driving mechanism is electrically connected with the controller, and a driving end of the second driving mechanism is connected with the second shunt plate for driving the second shunt plate to rotate to adjust the air volume flowing through the second pipe section.

5. The control method according to claim 4, characterized by The first shunt plate and the second shunt plate are rotatable between a first rotation angle and a second rotation angle; When the first shunt plate rotates to the first rotation angle, the first shunt plate is perpendicular to the air inlet to completely expose the air blown by the first shunt area towards the first pipe section; when the first shunt plate rotates to the second rotation angle, the first shunt plate at least blocks part of the first shunt area; When the second shunt plate rotates to the first rotation angle, the second shunt plate is perpendicular to the air inlet to completely expose the air blown by the second shunt area towards the second pipe section; when the second shunt plate rotates to the second rotation angle, the second shunt plate at least blocks part of the second shunt area.

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