Air conditioner indoor unit, air conditioner and control method thereof

Abstract

The application provides an air conditioner indoor unit, an air conditioner and a control method thereof. The air conditioner indoor unit comprises a shell, a wind channel is formed in the shell, and an air inlet and an air outlet are arranged at two ends of the wind channel respectively; a first cross-flow fan is arranged in the wind channel; an indoor heat exchanger comprises a first pipe section, a second pipe section and a third pipe section which are sequentially communicated and sequentially increase in distance from the first cross-flow fan; a first flow divider is arranged at the air inlet and used for blowing part of air blown into the first pipe section into the second pipe section and / or the third pipe section; a second flow divider is rotatably arranged at the air inlet and arranged opposite to the first pipe section; a first temperature sensor, a second temperature sensor, a third temperature sensor and a controller are arranged. The air conditioner indoor unit provided by the application can accurately control the rotating speed of the first flow divider and the rotating position of the second flow divider by detecting the temperatures of different pipe sections, so that the air volume distribution in the wind channel can be accurately adjusted.

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 first cross-flow fan is installed in the air duct;

[0008] The indoor heat exchanger includes a first pipe section, a second pipe section, and a third pipe section that are connected in sequence and whose distance from the first cross-flow fan increases in sequence. The first pipe section, the second pipe section, and the third pipe section are all arranged in the air duct.

[0009] A first distributor is provided at the air inlet to direct a portion of the air blown into the first pipe section into the second pipe section and / or the third pipe section.

[0010] The second distributor is rotatably mounted at the air inlet and is positioned opposite to the first 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 first temperature sensor, the second temperature sensor, and the third temperature sensor to control the rotation speed of the first splitter and the rotation position of the second splitter by detecting the temperature, thereby adjusting the airflow of the first pipe section, the second pipe section, and the third pipe section.

[0012] According to one embodiment of the present invention, the first splitter includes: a second cross-flow fan, a guide plate, and a first drive mechanism;

[0013] The second cross-flow fan is disposed at the air inlet, and the guide plate is shielded on one side of the second cross-flow fan. The guide plate extends outward from the air inlet at an angle. The first drive mechanism is electrically connected to the controller, and the drive end of the first drive mechanism is connected to the second cross-flow fan to guide part of the air blown into the first pipe section to the second pipe section and / or the third pipe section.

[0014] According to one embodiment of the present invention, the second diverter includes: a diverter plate and a second drive mechanism; the 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 diverter plate for driving the diverter plate to rotate, so as to cooperate with the guide plate to adjust the air volume flowing through the first pipe section.

[0015] 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. 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. The second cross-flow fan and the guide plate are disposed in the first diversion zone. The guide plate extends outward from the first diversion zone of the air inlet and tilts towards the second diversion zone. The diversion plate is rotatably disposed in the first diversion zone.

[0016] According to one embodiment of the present invention, the diverter plate is rotatable between a first rotation angle and a second rotation angle;

[0017] When the splitter plate is rotated to the first rotation angle, the splitter plate is perpendicular to the guide plate to block the air blown into the second pipe section and / or the third pipe section by the guide plate; when the splitter plate is rotated to the second rotation angle, the splitter plate is parallel to the guide plate to guide the air blown into the first pipe section into the second pipe section and / or the third pipe section in coordination with the guide plate.

[0018] An air conditioner provided according to a second aspect of the present invention includes: the above-described air conditioner indoor unit.

[0019] A control method for an indoor air conditioning unit according to a third aspect embodiment of the present invention includes:

[0020] 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.

[0021] Based on the first difference between the first temperature and the second temperature and the second difference between the second temperature and the third temperature, the rotation angle of the second splitter is determined, and the first splitter is controlled to rotate at the initial speed.

[0022] According to an embodiment of the present invention, the step of determining the rotation angle of the second splitter based on a first difference between a first temperature and a second temperature and a second difference between a second temperature and a third temperature includes:

[0023] Based on the first and second differences, the rotation angle of the splitter plate is adjusted while the splitter plate and the guide plate are perpendicular.

[0024] Wherein, the rotation angle α = 90° × A / (A + B); A is the absolute value of the first difference, and B is the absolute value of the second difference.

[0025] According to one embodiment of the present invention, after the step of controlling the first shunt to rotate at an initial speed, the method further includes:

[0026] Based on the first difference, the second difference, and the rotation angle, adjust the rotation speed of the first splitter.

[0027] According to an embodiment of the present invention, the step of adjusting the rotational speed of the first splitter based on the first difference, the second difference, and the rotation angle includes:

[0028] When the absolute value of the first difference is greater than or equal to the absolute value of the second difference, the speed of the second cross-flow fan is controlled to the first speed;

[0029] When the absolute value of the first difference is less than the absolute value of the second difference, the speed of the second cross-flow fan is controlled to the second speed.

[0030] Wherein, the first rotational speed r1 = v0 × cosα × a / (a ​​+ b), the second rotational speed r2 = v0 × cosα × (a + b) / (a ​​+ b + c); v0 is the initial rotational speed, a is the width of the first flow splitting zone, b is the width of the second flow splitting zone, and c is the width of the third flow splitting zone.

[0031] The air conditioning indoor unit provided by this invention, by introducing a first and a second air distributor, can precisely adjust the airflow entering the first, second, and third pipe sections. The first air distributor can guide a portion of the air into the second and / or third pipe sections, while the second air distributor, due to its rotatable nature, can further adjust the airflow distribution in each pipe section to meet the temperature regulation needs under different environments. Furthermore, this application achieves real-time temperature detection of each pipe section of the indoor heat exchanger by installing a first, second, and third temperature sensor and a controller. Based on the detected temperature information, the controller intelligently controls the rotation speed of the first air distributor and the rotation position of the second air distributor, thereby achieving automatic airflow adjustment. This intelligent control method can significantly improve the comfort of air conditioning. Attached Figure Description

[0032] 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.

[0033] 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;

[0034] 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;

[0035] Figure 3 The third schematic diagram of the rotation of the splitter in the indoor unit of an air conditioner provided in an embodiment of the present invention;

[0036] Figure 4 A schematic diagram of an air conditioner indoor unit provided in an embodiment of the present invention;

[0037] Figure 5 A flowchart of a control method for an indoor air conditioning unit provided in an embodiment of the present invention;

[0038] Figure 6 A schematic diagram illustrating the principle of the control method for an indoor air conditioner provided in an embodiment of the present invention;

[0039] Figure 7 A schematic structural diagram of the controller provided in an embodiment of the present invention;

[0040] Figure 8 This is a schematic structural diagram of an air conditioner provided in an embodiment of the present invention.

[0041] Figure label:

[0042] 10. Housing; 110. Air inlet; 120. Air outlet; 20. First cross-flow fan; 30. Indoor heat exchanger; 310. First pipe section; 320. Second pipe section; 330. Third pipe section; 40. First distributor; 410. Second cross-flow fan; 420. First drive mechanism; 430. Guide plate; 50. First temperature sensor; 60. Second temperature sensor; 70. Third temperature sensor; 80. Second distributor; 801. Distributor plate; 802. Second drive mechanism;

[0043] 710. Acquisition module; 720. First adjustment module; 730. Second adjustment module; 810. Processor; 820. Communication interface; 830. Memory; 840. Communication bus. Detailed Implementation

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] An indoor air conditioning unit according to a first aspect embodiment of the present invention. For example... Figures 1 to 4 As shown, the indoor unit of the air conditioner includes: a housing 10, a first 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.

[0050] 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.

[0051] The first cross-flow fan 20 is located in the air duct and is a key component for driving airflow. When the first 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.

[0052] 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 and whose distance from the first cross-flow fan 20 increases sequentially. 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 first cross-flow fan 20 and closer to 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.

[0053] The first splitter 40 and the second splitter 80 are key components of this invention. The first splitter 40 is located at the air inlet 110 and is used to direct a portion of the air blown into the first pipe section 310 to the second pipe section 320 and / or the third pipe section 330. The second splitter 80 is rotatably located at the air inlet 110 and is positioned opposite to the first pipe section 310. By adjusting the rotational position of the second splitter 80, the airflow from the first splitter 40 into the first pipe section 310 and into the second pipe section 320 and / or the third pipe section 330 can be controlled, thereby achieving precise control of the airflow distribution.

[0054] The 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. The 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. The 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.

[0055] 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.

[0056] 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 speed of the first distributor 40 and the rotation position of the second distributor 80 accordingly.

[0057] Under normal circumstances, due to the suction characteristics of the first 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.

[0058] 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 rotation speed of the first distributor 40 and the rotation position of the second distributor 80 to block the air flowing towards the first pipe section 310, reduce the amount of air blowing towards the first pipe section 310, and lower its temperature.

[0059] The air conditioning indoor unit provided by this invention, by introducing a first and a second air distributor, can precisely adjust the airflow entering the first, second, and third pipe sections. The first air distributor can guide a portion of the air into the second and / or third pipe sections, while the second air distributor, due to its rotatable nature, can further adjust the airflow distribution in each pipe section to meet the temperature regulation needs under different environments. Furthermore, this application achieves real-time temperature detection of each pipe section of the indoor heat exchanger by installing a first, second, and third temperature sensor and a controller. Based on the detected temperature information, the controller intelligently controls the rotation speed of the first air distributor and the rotation position of the second air distributor, thereby achieving automatic airflow adjustment. This intelligent control method can significantly improve the comfort of air conditioning.

[0060] In one example, such as Figures 1 to 4 As shown, the first flow divider 40 includes a second cross-flow fan 410, a guide plate 430, and a first drive mechanism 420. The second cross-flow fan 410 is disposed opposite to the first pipe section 310. By changing the rotation speed of the second cross-flow fan 410, the air volume can be controlled, thereby achieving precise adjustment of the air volume.

[0061] The second cross-flow fan 410 is installed at the air inlet 110. The guide plate 430 is shielded on one side of the second cross-flow fan 410. The guide plate 430 extends outward from the air inlet 110. By rotating the second cross-flow fan 410, some of the air blown into the first pipe section 310 can be blown into the second pipe section 320 and / or the third pipe section 330.

[0062] The first drive mechanism 420 is electrically connected to the controller. The drive end of the first drive mechanism 420 is connected to the second cross-flow fan 410, driving the second cross-flow fan 410 to rotate, thereby regulating the airflow through the first pipe section 310, the second pipe section 320, and the third pipe section 330. The first drive mechanism 420 can be a motor, a stepper motor, or other type of power device, capable of providing sufficient driving force and precisely controlling the rotation of the second cross-flow fan 410. Through cooperation with the controller, the first drive mechanism 420 can precisely adjust the speed of the second cross-flow fan 410 according to control commands, thereby achieving fine control of the airflow distribution.

[0063] During actual operation, the controller calculates the required airflow distribution based on temperature data detected by the temperature sensor. Then, the controller sends a control command to the first drive mechanism 420, which, upon receiving the command, drives the second cross-flow fan 410 to rotate. By continuously adjusting the speed of the second cross-flow fan 410, the airflow through the first pipe section 310, the second pipe section 320, and the third pipe section 330 can be adjusted, thereby optimizing the airflow distribution and improving heat exchange efficiency.

[0064] Accordingly, the second diverter 80 includes a diverter plate 801 and a second drive mechanism 802. The diverter plate 801 is rotatably disposed at the air inlet 110. The diverter plate 801 is disposed opposite to the first pipe section 310, and the rotation angle of the diverter plate 801 can be changed.

[0065] The second drive mechanism 802 is electrically connected to the controller. The drive end of the second drive mechanism 802 is connected to the splitter plate 801, used to drive the splitter plate 801 to rotate, thereby cooperating with the guide plate 430 to adjust the airflow through the first pipe section 310. The second drive mechanism 802 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 splitter plate 801. Through cooperation with the controller, the second drive mechanism 802 can precisely adjust the rotation of the splitter plate 801 according to control commands, and can adjust the airflow blown from the first splitter 40 into the second pipe section 320 and the third pipe section 330, thereby achieving fine control of the airflow distribution.

[0066] 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 802. Upon receiving the command, the second drive mechanism 802 drives the distributor plate 801 to rotate to the corresponding angle. By continuously adjusting the rotation of the distributor plate 801, the airflow through the first pipe section 310, 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.

[0067] In some embodiments, such as Figures 1 to 4 As shown, the air inlet 110 is provided with a first diversion zone, a second diversion zone, and a third diversion zone. The first pipe section 310 corresponds to the first diversion zone, the second pipe section 320 corresponds to the second diversion zone, and the third pipe section 330 corresponds to the third diversion zone.

[0068] In this embodiment, the width of the first diversion zone is 'a', the width of the second diversion zone is 'b', and the width of the third diversion zone is 'c'. A second cross-flow fan 410 and a guide plate 430 are disposed in the first diversion zone. The guide plate 430 extends outward from the first diversion zone of the air inlet 110 and tilts towards the second diversion zone. The diversion plate 801 is rotatably disposed in the first diversion zone.

[0069] Due to the suction characteristics of the first 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 second cross-flow fan 410 rotates, it can guide the air from the first distribution zone to other positions via the guide plate 430, thus regulating the airflow through the first pipe section 310, the second pipe section 320, and the third pipe section 330. Simultaneously, the distribution plate 801, in conjunction with the airflow guide, adjusts the airflow into the second pipe section 320 and the third pipe section 330 as needed.

[0070] In this embodiment, the second cross-flow fan 410 can control the airflow through the first pipe section 310, the second pipe section 320 and the third pipe section 330 by adjusting its speed.

[0071] It should be noted that the speed of the second cross-flow fan 410 is adjustable. When it is necessary to reduce the airflow in the first split zone, the speed of the second cross-flow fan 410 can be increased. When it is necessary to increase the airflow in the first split zone, the speed of the second cross-flow fan 410 can be decreased.

[0072] Meanwhile, the splitter plate 801 can rotate between a first rotation angle and a second rotation angle; when the splitter plate 801 rotates to the first rotation angle, the splitter plate 801 is perpendicular to the guide plate 430 to block the air blown into the second pipe section 320 and / or the third pipe section 330 from the guide plate 430; when the splitter plate 801 rotates to the second rotation angle, the splitter plate 801 is parallel to the guide plate 430 to guide the air blown into the first pipe section 310 into the second pipe section 320 and / or the third pipe section 330 in coordination with the guide plate 430.

[0073] An air conditioner provided according to a second aspect embodiment of the present invention, such as Figures 1 to 4 As shown, the air conditioner includes the aforementioned indoor air conditioning unit.

[0074] 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 the two drive mechanisms, the first splitter 40 and the second splitter 80 can adjust the airflow entering each pipe section according to actual needs, allowing the air conditioner to flexibly adjust the airflow distribution according to actual requirements.

[0075] The control method for an indoor air conditioning unit provided in the third aspect embodiment of the present invention, such as Figure 5 As shown, the process includes the following:

[0076] 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.

[0077] Step S120: Based on the first difference between the first temperature and the second temperature and the second difference between the second temperature and the third temperature, determine the rotation angle of the second splitter and control the first splitter to rotate at the initial speed.

[0078] 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.

[0079] Next, the controller calculates the absolute value A of the first difference between the first temperature T1 and the second temperature T2, and the absolute value B of the second difference between the second temperature T2 and the third temperature T3. These differences reflect the temperature differences between different zones and serve as the basis for adjusting the airflow distribution.

[0080] Then, the controller adjusts the first and second flow dividers based on the calculated first and second differences. The first and second flow dividers are devices installed inside the indoor unit of the air conditioner, used to regulate the airflow entering different duct sections. The rotation angle of the second flow divider is determined by the first and second differences (initially, the flow divider plate is perpendicular to the guide plate), and the first flow divider is controlled to rotate at an initial speed (e.g., 500 r / min). This changes the airflow at the first, second, and third duct sections.

[0081] 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.

[0082] 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.

[0083] like Figure 5 and Figure 6 As shown, step S120: the step of determining the rotation angle of the second distributor based on the first difference between the first temperature and the second temperature and the second difference between the second temperature and the third temperature includes: adjusting the rotation angle of the distributor plate based on the first difference and the second difference, on the basis that the distributor plate and the guide plate are perpendicular.

[0084] Specifically, in the initial state, the manifold and guide vane are perpendicular. The controller first calculates the absolute value A of the first difference between the first temperature T1 and the second temperature T2, and the absolute value B of the second difference between the second temperature T2 and the third temperature T3. The controller then determines the rotation angle of the manifold based on the calculated absolute values ​​A and B. The rotation angle α = 90° × A / (A + B); where A is the absolute value of the first difference and B is the absolute value of the second difference.

[0085] The controller can adjust the angle of the diffuser plate using either an electric actuator or a mechanical transmission mechanism. Once the angle of the diffuser plate is adjusted, the airflow into the first, second, and third pipe sections will change accordingly, thereby achieving a uniform distribution of indoor temperature.

[0086] In some embodiments, such as Figure 5 and Figure 6 As shown, after step S120: determining the rotation angle of the second distributor based on the first difference between the first temperature and the second temperature and the second difference between the second temperature and the third temperature, and controlling the first distributor to rotate at the initial speed, the method further includes:

[0087] Step S130: Adjust the rotational speed of the first splitter based on the first difference, the second difference, and the rotation angle.

[0088] Specifically, in the initial state, the first distributor rotates at an initial speed (e.g., 500 r / min). Once the rotation angle of the distributor plate is adjusted to the correct position, the speed of the first distributor is adjusted according to the absolute value A of the first difference, the absolute value B of the second difference, and the rotation angle α.

[0089] When the absolute value A of the first difference is greater than or equal to the absolute value B of the second difference, the speed of the second cross-flow fan is controlled to the first speed. The first speed r1 = v0 × cosα × a / (a ​​+ b); v0 is the initial speed, a is the width of the first flow splitting zone, b is the width of the second flow splitting zone, and c is the width of the third flow splitting zone.

[0090] When the absolute value A of the first difference is less than the absolute value B of the second difference, the speed of the second cross-flow fan is controlled to the second speed. The second speed r2 = v0 × cosα × (a + b) / (a ​​+ b + c); v0 is the initial speed, a is the width of the first flow splitting zone, b is the width of the second flow splitting zone, and c is the width of the third flow splitting zone.

[0091] Furthermore, after a preset operating time, the controller returns to the temperature acquisition step to perform a new round of temperature detection and airflow adjustment. This preset time can be set according to the actual application scenario and user needs, with the aim of ensuring that the system can periodically perform temperature detection and airflow adjustment to adapt to temperature changes.

[0092] By cyclically executing these steps, the air conditioning indoor unit control method of the present invention can achieve continuous and dynamic temperature regulation. Each cycle adjusts the fan speed and the angle of the splitter based on the latest temperature data, thereby precisely controlling the airflow distribution in each pipe section to achieve a uniform indoor temperature distribution. This dynamic adjustment not only improves user comfort but also utilizes air conditioning resources more effectively and reduces energy consumption.

[0093] The controller provided according to the fourth aspect embodiment of the present invention, please refer to Figure 7 ,include:

[0094] The acquisition module 710 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.

[0095] The first adjustment module 720 is used to determine the rotation angle of the second distributor based on the first difference between the first temperature and the second temperature and the second difference between the second temperature and the third temperature, and to control the first distributor to rotate at the initial speed.

[0096] The second adjustment module 730 is used to adjust the rotational speed of the first splitter based on the first difference, the second difference, and the rotation angle.

[0097] It should be noted that steps S110 to S130 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 following 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.

[0098] 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.

[0099] Figure 8 A schematic diagram of the physical structure of an electronic device is provided. This electronic device may include a processor 810, a communication interface 820, a memory 830, and a communication bus 840. The processor 810, communication interface 820, and memory 830 communicate with each other via the communication bus 840. The processor 810 can call logical instructions in the memory 830 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; determining the rotation angle of a second distributor based on a first difference between the first and second temperatures and a second difference between the second and third temperatures; and controlling the first distributor to rotate at an initial rotational speed.

[0100] Furthermore, the logical instructions in the aforementioned memory 830 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.

[0101] 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.

[0102] 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.

[0103] 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. An indoor unit for an air conditioner, characterized in that, include: The housing (10) has an air duct, and the two ends of the air duct are respectively provided with an air inlet (110) and an air outlet (120); A first cross-flow fan (20) is installed in the air duct; The indoor heat exchanger (30) includes a first pipe section (310), a second pipe section (320) and a third pipe section (330) that are connected in sequence and whose distance from the first cross-flow fan (20) increases in sequence. The first pipe section (310), the second pipe section (320) and the third pipe section (330) are all arranged in the air duct. A first splitter (40) is disposed at the air inlet (110) for blowing a portion of the air blown into the first pipe section (310) into the second pipe section (320) and / or the third pipe section (330); the first splitter (40) includes: a second cross-flow fan (410), a guide plate (430) and a first drive mechanism (420); The second diverter (80) is rotatably disposed at the air inlet (110) and is disposed opposite to the first pipe section (310); the second diverter (80) includes: a diverter plate (801) and a second drive mechanism (802); The system comprises a first temperature sensor (50), a second temperature sensor (60), a third temperature sensor (70), and a controller. The first temperature sensor (50) is located in the first pipe section (310), the second temperature sensor (60) is located in the second pipe section (320), and the third temperature sensor (70) is located in the third pipe section (330). The controller is electrically connected to the first shunt (40), the first temperature sensor (50), the second temperature sensor (60), and the third temperature sensor (70). The first splitter (40) speed and the second splitter (80) rotation position are controlled by detecting temperature, thereby adjusting the air volume of the first pipe section (310), the second pipe section (320) and the third pipe section (330); the second drive mechanism (802) is electrically connected to the controller, and the drive end of the second drive mechanism (802) is connected to the splitter plate (801) to drive the splitter plate (801) to rotate, so as to cooperate with the guide plate (430) to adjust the air volume flowing through the first pipe section (310).

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The second cross-flow fan (410) is disposed at the air inlet (110), and the guide plate (430) is shielded on one side of the second cross-flow fan (410). The guide plate (430) extends outward from the air inlet (110) at an angle. The first drive mechanism (420) is electrically connected to the controller. The drive end of the first drive mechanism (420) is connected to the second cross-flow fan (410) to guide part of the air blown into the first pipe section (310) into the second pipe section (320) and / or the third pipe section (330).

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The diverter plate (801) is rotatably disposed at the air inlet (110) and is disposed opposite to the first pipe section (310).

4. The indoor unit of the air conditioner according to claim 3, characterized in that, The air inlet (110) is provided with a first diversion area, a second diversion area and a third diversion area. The first pipe section (310) corresponds to the first diversion area, the second pipe section (320) corresponds to the second diversion area and the third pipe section (330) corresponds to the third diversion area. The second cross-flow fan (410) and the guide plate (430) are arranged in the first diversion area. The guide plate (430) extends outward from the first diversion area of ​​the air inlet (110) and tilts towards the second diversion area. The diversion plate (801) is rotatably arranged in the first diversion area.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, The diverter plate (801) is capable of rotating between a first rotation angle and a second rotation angle; When the diverter plate (801) is rotated to the first rotation angle, the diverter plate (801) is perpendicular to the guide plate (430) to block the air blown into the second pipe section (320) and / or the third pipe section (330) by the guide plate (430); when the diverter plate (801) is rotated to the second rotation angle, the diverter plate (801) is parallel to the guide plate (430) to guide the air blown into the first pipe section (310) into the second pipe section (320) and / or the third pipe section (330) in coordination with the guide plate (430).

6. An air conditioner, characterized in that, Including the indoor unit of an air conditioner as described in any one of claims 1-5.

7. A control method for an indoor air conditioning unit based on any one of claims 1-5, characterized in that, include: The first temperature detected by the first temperature sensor (50), the second temperature detected by the second temperature sensor (60), and the third temperature detected by the third temperature sensor (70) are obtained. Based on the first difference between the first temperature and the second temperature and the second difference between the second temperature and the third temperature, the rotation angle of the second splitter (80) is determined, and the first splitter (40) is controlled to rotate at the initial speed.

8. The control method according to claim 7, characterized in that, The step of determining the rotation angle of the second splitter (80) based on the first difference between the first temperature and the second temperature and the second difference between the second temperature and the third temperature includes: Based on the first difference and the second difference, the rotation angle of the splitter plate (801) is adjusted on the basis that the splitter plate (801) is perpendicular to the guide plate (430); Wherein, the rotation angle α = 90° × A / (A + B); A is the absolute value of the first difference, and B is the absolute value of the second difference.

9. The control method according to claim 8, characterized in that, After the step of controlling the first shunt (40) to rotate at the initial speed, the method further includes: Based on the first difference, the second difference, and the rotation angle, the rotation speed of the first splitter (40) is adjusted.

10. The control method according to claim 9, characterized in that, The step of adjusting the rotational speed of the first splitter (40) based on the first difference, the second difference, and the rotation angle includes: When the absolute value of the first difference is greater than or equal to the absolute value of the second difference, the speed of the second cross-flow fan (410) is controlled to the first speed; When the absolute value of the first difference is less than the absolute value of the second difference, the speed of the second cross-flow fan (410) is controlled to the second speed. Wherein, the first rotational speed r1 = v0 × cosα × a / (a ​​+ b), the second rotational speed r2 = v0 × cosα × (a + b) / (a ​​+ b + c); v0 is the initial rotational speed, a is the width of the first flow splitting zone, b is the width of the second flow splitting zone, and c is the width of the third flow splitting zone.

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