Air conditioner and control method thereof

Abstract

The present application relates to the technical field of air conditioners, in particular to an air conditioner and a control method thereof. The air conditioner comprises two air outlets arranged in a vertical direction. When the air conditioner is in a heating operation, the control method comprises: obtaining a temperature difference between a first height and a second height in the indoor environment; and adjusting the air outlet angle and / or the air outlet speed and / or the air outlet area of the two air outlets according to the temperature difference and in a predetermined priority order, wherein the priority of adjusting the downward air outlet angle is higher than the priority of adjusting the air outlet speed, and the priority of adjusting the air outlet speed is higher than the priority of adjusting the air outlet area. The present application can reduce the temperature difference between the upper and lower indoor environments by adjusting the downward air outlet angle of the air outlet according to the temperature difference between the upper and lower indoor environments, thereby improving the uniformity of the indoor temperature and achieving the purpose of improving the user experience.

Description

Air conditioners and their control methods Technical Field

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

[0002] When existing air conditioners are in heating mode, hot air rises automatically because it is less dense, while cold air sinks because it is denser. This results in automatic stratification of hot and cold air. However, existing air conditioners use a fixed airflow pattern and cannot compensate for the actual conditions of the room, leading to poor room temperature uniformity, especially a large temperature difference between the top and bottom of the room, which affects the user's actual experience. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide an air conditioner and its control method that overcome or at least partially solve the above problems, aiming to solve the problem of large temperature difference between the upper and lower parts of the room when the air conditioner is in heating mode, so as to improve the user experience.

[0004] To at least solve the above-mentioned technical problems, the present invention provides a control method for an air conditioner, the air conditioner including two air outlets arranged vertically;

[0005] When the air conditioner is in heating mode, the control method includes:

[0006] Obtain the temperature difference between the indoor temperature at the first and second altitudes;

[0007] According to the temperature difference, the air outlet angle and / or air outlet speed and / or air outlet ventilation area of ​​the two air outlets are adjusted in a predetermined priority order, wherein adjusting the downward air outlet angle has a higher priority than adjusting the air outlet speed, and adjusting the air outlet speed has a higher priority than adjusting the air outlet ventilation area.

[0008] Optionally, each of the air outlets is provided with an air guide device;

[0009] Each of the aforementioned air guiding devices includes:

[0010] The vertical oscillating blade assembly extends vertically along the air outlet and is configured to rotate around a vertical axis of the air conditioner to adjust the lateral air outlet direction and the air outlet ventilation area.

[0011] A horizontal sway blade assembly is located inside the corresponding air outlet. Each horizontal sway blade is configured to swing vertically up and down along the air conditioner to adjust the vertical air outlet direction.

[0012] Optionally, adjusting the air outlet angle and / or air outlet velocity and / or air outlet ventilation area of ​​the two air outlets according to the temperature difference in a predetermined priority order includes:

[0013] In response to the temperature difference being greater than or equal to a preset difference, and the air outlet angles of the two air outlets not being the maximum downward angle, the air outlet angles of the two air outlets are controlled to be adjusted downward by a preset angle, and the operation is carried out for a first preset time.

[0014] Determine whether the current temperature difference is less than a preset difference;

[0015] If so, maintain the current air outlet angle;

[0016] If not, in response to the fact that the air outlet angles of the two air outlets are not at their maximum downward angles, return to the step of adjusting the air outlet angles of the two air outlets downwards by a preset angle and running for a first preset time until the air outlet angles are at their maximum downward angles or the temperature difference is less than the preset difference, and maintain the current air outlet angles.

[0017] Optionally, adjusting the air outlet angle and / or air outlet velocity and / or air outlet ventilation area of ​​the two air outlets according to the temperature difference in a predetermined priority order includes:

[0018] In response to the temperature difference being greater than or equal to a preset difference, and the air outlet angles of the two air outlets not being the maximum downward angle, the air outlet angles of the two air outlets are controlled to be adjusted to the maximum downward angle, and the process is run for a first preset time.

[0019] Optionally, adjusting the air outlet angle and / or air outlet velocity and / or air outlet ventilation area of ​​the two air outlets according to the temperature difference in a predetermined priority order includes:

[0020] In response to the air outlet angle being the maximum downward angle and the current temperature difference being greater than or equal to a preset difference, the rotation speed of the indoor fan is obtained to obtain the first rotation speed;

[0021] In response to the first speed being less than the maximum speed, the indoor fan is controlled to execute a second speed, which is greater than the first speed, to increase the outlet air velocity.

[0022] Optionally, controlling the indoor fan to execute a second speed includes:

[0023] The rotational speed of the indoor fan is increased by a preset increment value, and the fan is run for a second preset time.

[0024] Determine whether the current temperature difference is less than a preset difference;

[0025] If so, maintain the current speed of the indoor fan;

[0026] If not, return to the step of increasing the indoor fan speed by a preset increment value until the indoor fan speed reaches its maximum speed or the second temperature difference is less than the preset difference value, and maintain the current speed of the indoor fan; or

[0027] The control of the indoor fan to execute the second speed includes:

[0028] The second rotational speed is the maximum rotational speed.

[0029] Optionally, the step of adjusting the air outlet angle and / or air outlet velocity and / or air outlet ventilation area of ​​the two air outlets according to the temperature difference in a predetermined priority order further includes:

[0030] In response to the indoor fan's current speed being the maximum speed, determine whether the current temperature difference is greater than or equal to a preset difference.

[0031] If so, then obtain the position of the vertically oriented leaf group to get the first position;

[0032] In response to the first position not being in the center position, the vertical oscillating blade assembly is controlled to rotate from the first position to the center position to increase the ventilation area of ​​the air outlet, and then runs for a third preset time.

[0033] Optionally, the control method further includes:

[0034] In response to the vertical blade assembly being in the center position and the current temperature difference being greater than or equal to a preset difference, the upper air outlet is closed.

[0035] Optionally, the control method further includes:

[0036] In response to the fourth preset time of the air conditioner's heating operation, the step of obtaining the temperature difference between the indoor temperature at the first height and the indoor temperature at the second height is performed once at preset intervals.

[0037] Optionally, obtaining the temperature difference between the indoor space at the first height and the second height includes:

[0038] The temperature of multiple temperature measuring points at the first height of the room is obtained, and the first average temperature is calculated; and the temperature of multiple temperature measuring points at the second height of the room is obtained, and the second average temperature is calculated.

[0039] Calculate the temperature difference between the first average temperature and the second average temperature.

[0040] On the other hand, the present invention also provides an air conditioner including a control device, the control device including a memory and a processor, the memory storing a control program, the control program being executed by the processor to implement the control method of the air conditioner as described in any of the preceding claims.

[0041] In the air conditioner control method of the present invention, the downward air outlet angle is preferentially adjusted according to the vertical temperature difference in the indoor environment. On the one hand, this reduces the vertical temperature difference in the indoor environment, improves the uniformity of temperature throughout the room, and thus enhances the user experience. On the other hand, prioritizing the downward air outlet angle effectively avoids excessive airflow caused by adjusting the air outlet speed and ventilation area, thereby minimizing the occurrence of indoor air dryness, causing discomfort such as dry skin and itchy throat, and increased indoor noise due to excessive airflow. Furthermore, the control method of the present invention has the advantages of simple and easy-to-execute control procedures.

[0042] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0043] The following sections will describe some specific embodiments of the invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0044] Figure 1 is a schematic flowchart of an air conditioner control method according to an embodiment of the present invention;

[0045] Figure 2 is a schematic flowchart of an air conditioner control method according to an embodiment of the present invention;

[0046] Figure 3 is a schematic flowchart of an air conditioner control method according to an embodiment of the present invention;

[0047] Figure 4 is a schematic flowchart of an air conditioner control method according to an embodiment of the present invention;

[0048] Figure 5 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;

[0049] Figure 6 is a schematic structural diagram of a yaw blade assembly according to an embodiment of the present invention;

[0050] Figure 7 is a diagram showing the usage status of an air conditioner according to an embodiment of the present invention. Detailed Implementation

[0051] The control method and air conditioner of the present invention according to embodiments are described below with reference to Figures 1 to 7. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0052] Unless otherwise expressly specified and limited, the terms "control method," "installation," "connection," "linking," "fixing," and "coupling," etc., 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "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.

[0054] Figure 1 is a schematic flowchart of an air conditioner control method according to an embodiment of the present invention. In conjunction with Figures 2-7, the present invention provides an air conditioner control method. The air conditioner includes two air outlets arranged vertically. The two air outlets are an upper air outlet and a lower air outlet; the upper air outlet is located above the lower air outlet.

[0055] As shown in Figure 1, the air conditioner is operating in heating mode, and the control method includes the following steps:

[0056] Step S11: Obtain the temperature difference between the indoor temperature at the first and second altitudes.

[0057] Step S12: Adjust the air outlet angle and / or air outlet speed and / or air outlet ventilation area of ​​the two air outlets according to the temperature difference value in a predetermined priority order, wherein adjusting the downward air outlet angle has a higher priority than adjusting the air outlet speed, and adjusting the air outlet speed has a higher priority than adjusting the air outlet ventilation area.

[0058] Specifically, in step S11, the "temperature difference between the first and second heights of the room" represents the temperature difference between the upper and lower parts of the room. This temperature difference indicates that the greater the temperature difference between the upper and lower parts of the room, the more uneven the indoor environment. The purpose of step S12 is to reduce the temperature difference. In this embodiment, any one, two, or three of the following three adjustment methods can be used to reduce the temperature difference between the upper and lower parts of the indoor environment: adjusting the downward air outlet angle, adjusting the air outlet speed, and adjusting the air outlet ventilation area. The priority of these three methods is: adjusting the downward air outlet angle > adjusting the air outlet speed > adjusting the air outlet ventilation area. For example, when there is a large temperature difference between the upper and lower parts of the room, prioritize adjusting the downward air outlet angle to increase the temperature of the lower part of the room, thereby reducing the temperature difference between the upper and lower parts. Based on the actual adjustment effect, determine whether further adjustment of the air outlet velocity is needed. If adjusting the downward air outlet angle is ineffective, then adjust the air outlet velocity to improve the convection of hot and cold air in the room and improve the uniformity of room temperature. Based on the actual effect of adjusting the temperature difference between the upper and lower parts of the room, determine whether further adjustment of the air outlet ventilation area is needed. Air outlet velocity and air outlet ventilation area are factors affecting airflow. Adjusting the air outlet velocity and / or adjusting the air outlet ventilation area is equivalent to adjusting the airflow.

[0059] In this embodiment, the downward air outlet angle is preferentially adjusted based on the vertical temperature difference within the indoor environment. On one hand, this reduces the vertical temperature difference, improving the uniformity of temperature throughout the room and thus enhancing the user experience. On the other hand, compared to prioritizing the adjustment of the airflow volume, prioritizing the downward air outlet angle effectively avoids excessive airflow caused by adjusting the airflow speed and vent area. This minimizes the risk of dry indoor air, causing discomfort such as dry skin and itchy throat, and increased indoor noise. Furthermore, the control method of this invention is simple and easy to execute.

[0060] In some optional embodiments of the present invention, the control method further includes: in response to the start of the air conditioner, obtaining the operating mode of the air conditioner; in response to the operating mode of the air conditioner being a heating mode, controlling the air conditioner to operate in heating mode.

[0061] In some optional embodiments of the present invention, the preset difference is 3 to 7°C (e.g., 3°C, 4°C, 4.5°C, 4.8°C, 5°C, 5.5°C, 5.8°C, 6°C, 6.5°C, or 7°C). Preferably, the preset difference is 5°C.

[0062] In some optional embodiments of the present invention, obtaining the temperature difference between an indoor space at a first height and an indoor space at a second height includes the following steps: obtaining the temperature at the first height to obtain a first temperature; simultaneously obtaining the temperature at the second height to obtain a second temperature; and calculating the difference between the first temperature and the second temperature.

[0063] Specifically, the first height is greater than the second height. The first temperature represents the upper temperature of the indoor environment; the second temperature represents the lower temperature of the indoor environment.

[0064] As shown in Figures 5-6, in some optional embodiments of the present invention, each air outlet is provided with an air guiding device. Each air guiding device includes a vertical oscillating blade assembly 10 and a horizontal oscillating blade assembly 20.

[0065] As shown in Figure 5, the vertical oscillating blade assembly 10 extends vertically along the air outlet. The vertical oscillating blade assembly 10 is configured to rotate around a vertical axis of the air conditioner to adjust the lateral air outlet direction and the ventilation area of ​​the air outlet.

[0066] As shown in Figure 6, the horizontal louver group 20 is disposed inside the corresponding air outlet. The multiple horizontal louvers of the horizontal louver group are arranged vertically, and each horizontal louver is configured to swing up and down along the vertical direction of the air conditioner to adjust the vertical air outlet direction.

[0067] The vertical sway blade assembly 10 and the horizontal sway blade assembly 20 work together to guide the airflow, allowing the airflow to blow in any direction and achieve point-to-point air delivery.

[0068] In this embodiment, the air guiding device corresponding to each air outlet is a separate structure, and each air guiding device can be controlled independently. The horizontal oscillating blade group 20 corresponding to each air outlet is used to control the up and down air direction of the air outlet, and the vertical oscillating blade group 10 corresponding to each air outlet can be used to control the left and right air direction and the air volume of the air outlet.

[0069] As shown in Figure 2, in some optional embodiments of the present invention, adjusting the air outlet angle and / or air outlet velocity and / or air outlet ventilation area of ​​the two air outlets according to the temperature difference value in a predetermined priority order includes the following steps:

[0070] Step S21: In response to the temperature difference being greater than or equal to a preset difference, and the air outlet angles of the two air outlets not being the maximum downward angle, the air outlet angles of the two air outlets are controlled to be adjusted downward by a preset angle, and the process is run for a first preset time.

[0071] Step S22: Determine whether the current temperature difference is less than a preset difference.

[0072] Step S23: If yes, maintain the current air outlet angle; if no, in response to the air outlet angle of the two air outlets not being the maximum downward angle, return to the step of controlling the air outlet angle of both air outlets to adjust downward by a preset angle and running for a first preset time until the air outlet angle is the maximum downward angle or the temperature difference is less than the preset difference, and maintain the current air outlet angle.

[0073] Specifically, to prevent excessive temperature differences between the upper and lower parts of the room, when the temperature difference is greater than or equal to a preset difference, it is determined whether the air outlet angles of the two air outlets of the air conditioner are at their maximum downward angle. If neither air outlet angle is at its maximum downward angle, the air outlet angles of both air outlets are adjusted downward by a preset angle (denoted as Δα), and this is carried out for a first preset time. Then, the current temperature difference is obtained again, and it is determined whether the current temperature difference is less than the preset difference: if the current temperature difference is less than the preset difference, it means that adjusting the preset angle Δα downwards of both air outlets has effectively solved the problem of large temperature differences between the upper and lower parts of the room, and the current air outlet angles are maintained; if the current temperature difference is still greater than or equal to the preset difference, it means that adjusting the preset angle Δα downwards of both air outlets has not solved the problem of large temperature differences between the upper and lower parts of the room, and step S21 is executed again until the air outlet angles of both air outlets are at their maximum downward angles, and the current air outlet angles of both air outlets are maintained; or, the current air outlet angles of both air outlets are maintained until the current temperature difference is less than the preset difference.

[0074] In summary, in this embodiment, during the heating operation of the air conditioner, when there is a large temperature difference between the upper and lower parts of the room, a method of gradually increasing the downward air outlet angle is preferentially adopted to reduce the temperature difference between the upper and lower parts of the indoor environment. This control method is simple and easy to operate, and can improve the uniformity of the temperature throughout the room, thereby improving the user experience. During the adjustment of the air outlet angle, when the temperature difference is less than the preset difference, it indicates that the temperature difference between the upper and lower parts of the room is small, and the current air outlet angle can be maintained; or, when the air outlet angles of both air outlets are adjusted to the maximum downward angle, the current air outlet angle is also maintained. In addition, compared with the method of directly adjusting the air outlet angles of both air outlets to the maximum downward angle, the method of gradually increasing the downward air outlet angle adopted by this invention can further prevent excessive adjustment of the temperature difference between the upper and lower parts of the room, that is, it can further avoid the occurrence of the lower part of the room being warmer than the upper part.

[0075] In some alternative embodiments of the present invention, adjusting the air outlet angle and / or air outlet speed and / or air outlet ventilation area of ​​the two air outlets according to the temperature difference in a predetermined priority order includes: in response to the temperature difference being greater than or equal to a preset difference, and the air outlet angle of the two air outlets not being the maximum downward angle, controlling the air outlet angle of the two air outlets to be adjusted to the maximum downward angle, and running for a first preset time.

[0076] In this embodiment, the above settings can quickly increase the temperature of the lower part of the indoor environment, thereby rapidly reducing the temperature difference between the upper and lower parts of the indoor environment.

[0077] As shown in Figure 3, in some optional embodiments of the present invention, adjusting the air outlet angle and / or air outlet velocity and / or air outlet ventilation area of ​​the two air outlets according to the temperature difference value in a predetermined priority order includes the following steps:

[0078] Step S31: In response to the air outlet angle being the maximum downward angle and the current temperature difference being greater than or equal to a preset difference, the rotation speed of the indoor fan is obtained to obtain the first rotation speed.

[0079] Step S32: In response to the first rotational speed being less than the maximum rotational speed, the indoor fan is controlled to execute a second rotational speed, which is greater than the first rotational speed, in order to increase the outlet air velocity.

[0080] This embodiment is divided into the following two cases:

[0081] The first scenario: During the air conditioner's heating operation, after the initial temperature difference acquisition step, it is first determined whether the temperature difference is greater than or equal to a preset difference. If the temperature difference is greater than or equal to the preset difference, it is then determined whether the air outlet angles of the two air outlets are at their maximum downward angle. If both air outlet angles are at their maximum downward angle, the indoor fan speed is acquired to obtain the first speed, and step S31 is executed. In other words, after the initial temperature difference acquisition step, if the temperature difference is greater than or equal to the preset difference, and both air outlet angles are at their maximum downward angle, the current air outlet angle is maintained, the first indoor fan speed is acquired, and the indoor fan is controlled based on the first speed.

[0082] The second scenario: During the air conditioner's heating operation, after the initial temperature difference measurement, it is first determined whether the temperature difference is greater than or equal to a preset difference. If the temperature difference is greater than or equal to the preset difference, it is then determined whether the air outlet angles of the two air outlets are at their maximum downward angle. If neither of the two air outlet angles is at its maximum downward angle, the downward air outlet angles of the two air outlets are adjusted, i.e., steps S21, S22, and S23 are executed; or, the two air outlets are directly adjusted to their maximum downward angle. When both air outlet angles are adjusted to their maximum downward angle, if the temperature difference is still greater than or equal to the preset difference after a period of operation, the indoor fan speed is measured to obtain the first speed, i.e., step S31 is executed. In other words, when adjusting the downward air outlet angle alone cannot effectively reduce the temperature difference between the upper and lower parts of the room, the airflow speed to the lower part of the room is increased by adjusting the indoor fan speed, thereby reducing the temperature difference between the upper and lower parts of the room.

[0083] In this embodiment, adjusting the air outlet angle has a higher priority than adjusting the indoor fan speed. Specifically, while maintaining the maximum downward air outlet angle of both air outlets, increasing the indoor fan speed simultaneously increases the air outlet velocity, which can improve the convection of hot and cold air in the room, help improve the uniformity of room temperature, and thus further reduce the temperature difference between the upper and lower parts of the indoor environment, thereby further improving the user experience.

[0084] In some optional embodiments of the present invention, controlling the indoor fan to execute a second speed includes: controlling the speed of the indoor fan to increase by a preset increment value and running for a second preset time; determining whether the current temperature difference is less than a preset difference value; if yes, maintaining the current speed of the indoor fan; if no, returning to the step of controlling the speed of the indoor fan to increase by the preset increment value until the speed of the indoor fan is the maximum speed or the second temperature difference is less than the preset difference value, and maintaining the current speed of the indoor fan.

[0085] Specifically, as shown in Figure 4, controlling the indoor fan to execute the second speed includes the following steps:

[0086] Step S321: Control the indoor fan speed to increase by a preset increment value and run for a second preset time.

[0087] Step S322: Determine whether the current temperature difference is less than a preset difference.

[0088] Step S323: If yes, then maintain the current speed of the indoor fan.

[0089] Step S324: If not, determine whether the current speed of the indoor fan is the maximum speed: if the current speed is the maximum speed, maintain the current speed of the indoor fan; if the current speed is not the maximum speed, execute step S321.

[0090] In this embodiment, the method of gradually increasing the indoor fan speed, compared with directly adjusting the indoor fan speed to the maximum speed, not only prevents excessive adjustment of the temperature difference between the upper and lower parts of the room, thus avoiding the situation where the temperature in the lower part of the room is higher than that in the upper part, but also saves energy and has the technical effect of energy saving and emission reduction.

[0091] In some alternative embodiments of the present invention, controlling the indoor fan to execute a second speed includes: the second speed being the maximum speed.

[0092] Specifically, in response to the first rotational speed being less than the maximum rotational speed, the indoor fan is controlled to operate at its maximum rotational speed to adjust the outlet airflow to the maximum outlet airflow speed. In this embodiment, directly increasing the indoor fan's rotational speed to the maximum speed can quickly increase the indoor temperature, thereby rapidly reducing the temperature difference between the upper and lower parts of the indoor environment.

[0093] In some optional embodiments of the present invention, the step of adjusting the air outlet angle and / or air outlet velocity and / or air outlet ventilation area of ​​the two air outlets according to the temperature difference value in a predetermined priority order further includes the following steps:

[0094] Step S41: In response to the indoor fan's current speed being the maximum speed, determine whether the current temperature difference is greater than or equal to a preset difference.

[0095] Step S42: If yes, then obtain the position of the vertical swing leaf group to obtain the first position.

[0096] Step S43: In response to the first position not being in the center position, control the vertical swing blade group to rotate from the first position to the center position to increase the ventilation area of ​​the air outlet, and run for a third preset time.

[0097] In this embodiment, when the air outlet angles of the two air outlets are at their maximum downward angles and the current speed of the indoor fan is at its maximum speed, if the temperature difference is still greater than or equal to a preset difference, then while maintaining the maximum downward angle and maximum speed, the two vertical sway blade groups 10 are adjusted to a centered position to increase the ventilation area of ​​the air outlets, i.e., to increase the airflow, thereby rapidly raising the temperature of the lower part of the indoor environment and reducing the temperature difference. Specifically, when the vertical sway blade groups are in the centered position, the air outlet opening is at its maximum, i.e., the air outlet ventilation area is at its maximum. In other words, this embodiment achieves the goal of maximizing the ventilation area of ​​the two air outlets by adjusting the two vertical sway blade groups 10 to a centered position.

[0098] Furthermore, the control method further includes the following step: maintaining the first position in response to the first position being in the center position.

[0099] In some optional embodiments of the present invention, the control method further includes: closing the upper air outlet in response to the vertical blade assembly being in the center position and the current temperature difference being greater than or equal to a preset difference.

[0100] Specifically, through the above steps, the air volume of the lower air outlet can be made greater than that of the upper air outlet.

[0101] In this embodiment, after the step of "controlling the vertical sway blade group to rotate from the first position to the central position and running for a third preset time", it is determined whether the current temperature difference is less than the preset difference. If the current temperature difference is still greater than or equal to the preset difference, it indicates that the above-mentioned measures of "adjusting the downward air outlet angle, increasing the air outlet speed, and increasing the ventilation area of ​​the air outlet" (both horizontal sway blade groups are rotated to the maximum downward angle, the current speed of the indoor fan is the maximum speed, and both vertical sway blade groups are in the central position) cannot effectively solve the problem of large temperature difference between the upper and lower parts of the indoor environment. At this time, the air outlet at the upper part is closed, and only the air outlet at the lower part is opened, so that the air volume at the upper part of the room is very small and the air volume at the lower part is very large, and the air volume is concentrated downward, so as to further avoid direct air supply to the upper environment, thereby effectively solving the problem of large temperature difference between the upper and lower parts of the indoor environment.

[0102] In some optional embodiments of the present invention, the control method further includes the following steps: in response to a fourth preset time of heating operation of the air conditioner, the step of obtaining the temperature difference between the room at a first height and the room at a second height is performed once at a preset interval.

[0103] Specifically, since the indoor temperature is relatively uniform when the air conditioner first starts running, it is not necessary to obtain the temperature difference value at this time. Therefore, the temperature difference value is only obtained after the fourth preset heating time.

[0104] In some optional embodiments of the present invention, the temperature difference between the indoor temperature at the first altitude and the temperature at the second altitude is acquired every 3 minutes.

[0105] In another alternative embodiment of the invention, the control method further includes the step of: in response to the start of the air conditioner, starting to acquire the temperature difference value.

[0106] In some optional embodiments of the present invention, the control method further includes the following steps:

[0107] Step S51: In response to the closure of the upper air outlet, after a fifth preset time, the current temperature difference value is obtained.

[0108] Step S52: Determine whether the temperature difference is less than the preset difference.

[0109] Step S53: If so, open the air outlet located at the top.

[0110] In some optional embodiments of the present invention, obtaining the temperature difference between an indoor space at a first height and a second height includes the following steps:

[0111] Step S61: Obtain the temperature of multiple temperature measuring points at the first height in the room and calculate the first average temperature; and obtain the temperature of multiple temperature measuring points at the second height in the room and calculate the second average temperature.

[0112] Step S62: Calculate the temperature difference between the first average temperature and the second average temperature.

[0113] In this embodiment, a first average temperature (i.e., the first temperature) is obtained based on the temperatures of multiple temperature measuring points at a first altitude. This first average temperature reflects the overall temperature state of the indoor environment at the first altitude. Similarly, a second average temperature (i.e., the second temperature) is obtained based on the temperatures of multiple temperature measuring points at a second altitude. This second average temperature reflects the overall temperature state of the indoor environment at the second altitude. Therefore, this embodiment can obtain the true temperature difference between the first and second altitudes in the indoor environment. In other words, it reflects the true temperature difference between the upper and lower altitudes of the indoor environment. Based on this true temperature difference, misjudgments can be avoided, making it more conducive to precise control of the air conditioner.

[0114] Preferably, the second height is 0.2m above the indoor ground, and the first height is 2m above the indoor ground, that is, the difference between the first height and the second height is 1.8m.

[0115] In some optional embodiments of the present invention, there are three temperature measuring points both at the first and second indoor heights. As shown in Figure 7, the three temperature measuring points at the first indoor height are A1, B1, and C1. The three temperature measuring points at the second indoor height are A2, B2, and C2.

[0116] Specifically, there are a total of 6 temperature measurement points indoors, namely:

[0117] Temperature measurement point A1 is located on the left side of the air conditioner and at the first height.

[0118] Temperature measuring point B1 is located on the front side of the air conditioner and at the first height.

[0119] Temperature measuring point C1 is located to the right of the air conditioner and at the first height.

[0120] Temperature measurement point A2 is located on the left side of the air conditioner and at the second height.

[0121] Temperature measurement point B2 is located on the front side of the air conditioner and at the second height.

[0122] Temperature measurement point C2 is located to the right of the air conditioner and at the second height.

[0123] For example, the second height is 0.2m from the indoor ground, and the first height is 2m from the indoor ground. That is to say, the difference between the first height and the second height is 1.8m.

[0124] In some alternative embodiments of the present invention, there are 4, 5, 6, 7 or 8 temperature measuring points in the room at the first height and the room at the second height.

[0125] In some alternative embodiments of the present invention, obtaining the temperature difference between an indoor space at a first height and an indoor space at a second height includes the following steps: obtaining the temperature of a temperature measuring point at the first height to obtain a first temperature; obtaining the temperature of a temperature measuring point at the second height to obtain a second temperature; and calculating the temperature difference between the first temperature and the second temperature.

[0126] As shown in Figures 5 and 7, in some optional embodiments of the present invention, an infrared temperature sensor 30 is provided on the front side of the air conditioner to obtain the temperature of multiple temperature measuring points in the room.

[0127] Preferably, the infrared temperature sensor 30 is installed on the upper part of the air conditioner housing and is located above the air outlet.

[0128] In existing technologies, air conditioning parameter acquisition is generally achieved through automatic control using ambient temperature sensors at the air inlet and sensors on the inner coils of the indoor heat exchanger. However, the ambient temperature sensors, which collect the air temperature parameters entering the air conditioner, are limited by the airflow area and can only reflect the air temperature near the air conditioner. They cannot accurately reflect the overall air temperature distribution throughout the room. Even with temperature compensation in the control scheme, it remains a fixed mode, and its accuracy is difficult to achieve due to factors such as room shape and area.

[0129] In this embodiment, by setting an infrared temperature sensor 30 on the front of the air outlet, the temperature of different temperature measurement points throughout the house is scanned, and directional air is delivered, which can ensure the uniformity of the temperature throughout the house and improve the user's air conditioning experience.

[0130] Figure 5 is a schematic diagram of the structure of an air conditioner according to an embodiment of the present invention. Referring to Figure 6, the present invention also provides an air conditioner including a control device. The control device includes a memory and a processor. The memory stores a control program, which, when executed by the processor, is used to implement the control method of the air conditioner as described in any of the above embodiments.

[0131] In this embodiment, the air conditioner can prioritize adjusting the air outlet angle according to the temperature difference between the upper and lower parts of the indoor environment, thereby reducing the temperature difference between the upper and lower parts of the indoor environment, improving the uniformity of the temperature throughout the room, and thus enhancing the user experience.

[0132] Furthermore, the air conditioner is a cabinet-type air conditioner, that is, a floor-standing cabinet unit.

[0133] In some alternative embodiments of the invention, the air conditioner includes a housing. Two vertically arranged air outlets are provided on the front side of the housing.

[0134] In some alternative embodiments of the present invention, each of the air outlets is provided with an air guiding device.

[0135] Each of the aforementioned air guide devices includes a vertical oscillating blade assembly 10 and a horizontal oscillating blade assembly 20.

[0136] As shown in Figure 5, the vertical oscillating blade assembly 10 extends vertically along the air outlet. The vertical oscillating blade assembly 10 is configured to rotate around a vertical axis of the air conditioner to adjust the lateral air outlet direction and air volume.

[0137] As shown in Figure 6, the horizontal louver group 20 is disposed inside the corresponding air outlet. The multiple horizontal louvers of the horizontal louver group are arranged vertically, and each horizontal louver is configured to swing up and down along the vertical direction of the air conditioner to adjust the vertical air outlet direction.

[0138] The vertical sway blade assembly 10 and the horizontal sway blade assembly 20 work together to guide the airflow, allowing the airflow to blow in any direction and achieve point-to-point air delivery.

[0139] In this embodiment, the air guiding device corresponding to each air outlet is a separate structure, and each air guiding device can be controlled independently. The horizontal oscillating blade group 20 corresponding to each air outlet is used to control the up and down airflow direction of the air outlet, and the vertical oscillating blade group 10 corresponding to each air outlet can be used to control the left and right airflow direction of the air outlet.

[0140] In some optional embodiments of the present invention, an infrared temperature sensor 30 is provided on the front side of the air conditioner to obtain the temperature of multiple temperature measuring points in the room.

[0141] Preferably, the infrared temperature sensor 30 is installed on the upper part of the air conditioner housing and is located above the air outlet.

[0142] In some alternative embodiments of the invention, the infrared temperature sensor 30 is mounted on the lower part of the front side of the air conditioner housing.

[0143] In some alternative embodiments of the invention, the infrared temperature sensor 30 is mounted at the center of the front side of the air conditioner housing.

[0144] In existing technologies, air conditioning parameter acquisition is generally achieved through automatic control using ambient temperature sensors at the air inlet and sensors on the inner coils of the indoor heat exchanger. The ambient temperature sensors, which collect the air temperature parameters entering the air conditioner, are limited by the airflow area and can only reflect the air temperature near the air conditioner, making it difficult to assess the overall room temperature distribution. Even with temperature compensation in the control scheme, it remains a fixed mode, and its accuracy is limited by factors such as room shape and area. In this embodiment, however, by placing an infrared temperature sensor 30 on the front of the air outlet, which scans the temperature at different measurement points throughout the room and directs airflow in a directional manner, uniform temperature throughout the room can be ensured, improving the user's air conditioning experience.

[0145] When the remote control is set to the whole-house uniform temperature mode: the vertical oscillating blade assembly 10 and the horizontal oscillating blade assembly 20 can be directed to enhance the airflow to areas with insufficient temperature, ensuring the uniformity of temperature throughout the house.

[0146] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A control method for an air conditioner, characterized in that, The air conditioner includes two vertically arranged air outlets; each air outlet is equipped with an air guide device; each air guide device includes: a vertical sway blade assembly, extending vertically along the air outlet and configured to rotate around a vertical axis of the air conditioner, used to adjust the lateral airflow direction and ventilation area of ​​the air outlet; and a horizontal sway blade assembly, disposed inside the corresponding air outlet, each horizontal sway blade configured to swing up and down vertically along the air conditioner to adjust the vertical airflow direction of the air outlet; when the air conditioner is in heating mode, the control method includes The system acquires the temperature difference between the indoor temperature at a first height and a second height; based on the temperature difference, it adjusts the air outlet angle and / or air velocity and / or ventilation area of ​​the two air outlets according to a predetermined priority order, wherein adjusting the downward air outlet angle has a higher priority than adjusting the air velocity, and adjusting the air velocity has a higher priority than adjusting the ventilation area; the adjustment according to the predetermined priority order includes: adjusting the downward air outlet angle; if the air outlet angle reaches the maximum downward angle and the current temperature difference is greater than or equal to... If the temperature difference is greater than or equal to the preset difference, the indoor fan speed is increased to increase the outlet air velocity; if the outlet air velocity reaches the maximum air velocity and the current temperature difference is greater than or equal to the preset difference, the air outlet ventilation area is increased; if the air outlet ventilation area of ​​the two outlets is the maximum value and the current temperature difference is greater than or equal to the preset difference, the upper outlet is closed; the method of adjusting the outlet angle and / or outlet air velocity and / or air outlet ventilation area of ​​the two outlets according to the temperature difference in a predetermined priority order further includes: in response to the current speed of the indoor fan being the maximum speed, determining whether the current temperature difference is greater than or equal to the preset difference; if so, obtaining the position of the vertical swing blade group to obtain a first position; in response to the first position not being in the center position, controlling the vertical swing blade group to rotate from the first position to the center position to increase the air outlet ventilation area, and running for a third preset time; the control method further includes: in response to the vertical swing blade group being in the center position and the current temperature difference being greater than or equal to the preset difference, closing the upper outlet.

2. The control method according to claim 1, characterized in that, The method of adjusting the air outlet angle and / or air outlet speed and / or air outlet ventilation area of ​​the two air outlets according to the temperature difference in a predetermined priority order includes: responding to the temperature difference being greater than or equal to a preset difference, and the air outlet angle of the two air outlets not being the maximum downward angle, controlling the air outlet angle of both air outlets to be adjusted downward by a preset angle, and running for a first preset time; determining whether the current temperature difference is less than the preset difference; if yes, maintaining the current air outlet angle; if no, responding to the air outlet angle of the two air outlets not being the maximum downward angle, returning to the step of controlling the air outlet angle of both air outlets to be adjusted downward by a preset angle, and running for a first preset time, until the air outlet angle is the maximum downward angle or the temperature difference is less than the preset difference, and maintaining the current air outlet angle.

3. The control method according to claim 1, characterized in that, The method of adjusting the air outlet angle and / or air outlet speed and / or air outlet ventilation area of ​​the two air outlets according to the temperature difference in a predetermined priority order includes: in response to the temperature difference being greater than or equal to a preset difference, and the air outlet angle of the two air outlets not being the maximum downward angle, controlling the air outlet angle of the two air outlets to adjust to the maximum downward angle, and running for a first preset time.

4. The control method according to any one of claims 1 to 3, characterized in that, The method of adjusting the air outlet angle and / or air outlet speed and / or air outlet ventilation area of ​​the two air outlets according to the temperature difference in a predetermined priority order includes: in response to the air outlet angle being the maximum downward angle and the current temperature difference being greater than or equal to a preset difference, obtaining the rotation speed of the indoor fan to obtain a first rotation speed; in response to the first rotation speed being less than the maximum rotation speed, controlling the indoor fan to execute a second rotation speed, the second rotation speed being greater than the first rotation speed, so as to increase the air outlet speed.

5. The control method according to claim 4, characterized in that: The method of controlling the indoor fan to execute a second speed includes: controlling the speed of the indoor fan to increase by a preset increment value and running for a second preset time; determining whether the current temperature difference value is less than a preset difference value; if yes, maintaining the current speed of the indoor fan; if no, returning to the step of controlling the speed of the indoor fan to increase by the preset increment value until the speed of the indoor fan is the maximum speed or the current temperature difference value is less than the preset difference value, and maintaining the current speed of the indoor fan; or the method of controlling the indoor fan to execute a second speed includes: the second speed being the maximum speed.

6. The control method according to claim 1, characterized in that: The method of obtaining the temperature difference between the indoor temperature at a first height and the indoor temperature at a second height includes: obtaining the temperature of multiple temperature measuring points at the first height and calculating a first average temperature; obtaining the temperature of multiple temperature measuring points at the second height and calculating a second average temperature; and calculating the temperature difference between the first average temperature and the second average temperature.

7. An air conditioner, characterized in that, The device includes a control unit, which comprises a memory and a processor. The memory stores a control program, which, when executed by the processor, is used to implement the control method of the air conditioner as described in any one of claims 1 to 6.

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