Control method of embedded air conditioner and air conditioner

Abstract

The application relates to the technical field of air conditioners, and provides a control method of an embedded air conditioner and the air conditioner. The control method of the embedded air conditioner comprises the following steps: obtaining a wind speed mode of the embedded air conditioner and an air outlet temperature of an air outlet; determining a heat exchange efficiency of air outlet air of the air outlet according to the air outlet temperature; and adjusting an air outlet direction of the air outlet to a target air outlet direction according to the heat exchange efficiency and the wind speed mode; wherein the target air outlet direction corresponds to a target heat exchange length which is negatively correlated with the heat exchange efficiency. When the embedded air conditioner is running, in the case that the heat exchange efficiency is low, the air outlet temperature after heat exchange is still too low or too high, the air outlet direction of the air outlet is adjusted to the target air outlet direction according to the wind speed mode and the heat exchange efficiency, the air outlet air of the air outlet reaches a region where a user is located only after passing through a long target heat exchange length, at this moment, the air outlet temperature is improved to a certain extent, the user's body temperature is alleviated, and the user's comfort is improved.

Description

Technical Field

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

[0002] As people's demands for interior aesthetics and space utilization continue to increase, built-in air conditioners are increasingly being used in interior decoration. Built-in air conditioners are characterized by their small footprint, but their cooling effect, like other air conditioners, is linked to compressor power, refrigerant, and heat dissipation. In related technologies, built-in air conditioners are suspended from the ceiling. When the difference between the indoor ambient temperature and the set temperature of the built-in air conditioner is small, and the air conditioner is running at high fan speed, the high-speed airflow from the vents blows directly onto the user, causing discomfort and severely impacting the user experience. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in related technologies. To this end, this invention proposes a control method for an embedded air conditioner. The method determines the heat exchange efficiency between the air outlet and the indoor air based on the outlet temperature, and adjusts the air outlet direction to the target direction based on the heat exchange efficiency and fan speed mode. This increases the heat exchange length between the cold or hot air and the indoor air, preventing the cold or hot air from the outlet from blowing directly onto the user's area or onto the user, thus improving user comfort and experience.

[0004] This invention also provides an embedded air conditioner.

[0005] A control method for an embedded air conditioner according to a first aspect embodiment of the present invention includes:

[0006] Obtain the fan speed mode and air outlet temperature of the embedded air conditioner;

[0007] The heat exchange efficiency between the air outlet and the indoor air is determined based on the air outlet temperature.

[0008] The air outlet direction is adjusted to the target air outlet direction based on the heat exchange efficiency and the wind speed mode; wherein the target heat exchange length corresponding to the target air outlet direction is negatively correlated with the heat exchange efficiency.

[0009] According to an embodiment of the present invention, the step of determining the heat exchange efficiency between the air outlet and the indoor air based on the outlet air temperature specifically includes:

[0010] Obtain the indoor ambient temperature of the room where the embedded air conditioner is located;

[0011] The heat exchange efficiency is determined based on the temperature difference between the outlet air temperature and the indoor ambient temperature, and the heat exchange efficiency is positively correlated with the temperature difference.

[0012] According to an embodiment of the present invention, the step of adjusting the air outlet direction to the target air outlet direction based on the heat exchange efficiency and the wind speed pattern specifically includes:

[0013] If the wind speed mode is determined to be low wind speed mode or medium wind speed mode, then the air outlet direction is maintained in the original set direction;

[0014] If the wind speed mode is determined to be a high wind speed mode, the compensation angle of the air guide plate is determined according to the heat exchange efficiency, and the air guide plate is adjusted from the set angle to the target air outlet angle according to the compensation angle.

[0015] According to an embodiment of the present invention, the step of determining the heat exchange efficiency based on the temperature difference between the outlet air temperature and the indoor ambient temperature specifically includes:

[0016] If the temperature difference is determined to be greater than a first temperature threshold, then the heat exchange efficiency is the first heat exchange efficiency.

[0017] If the temperature difference is determined to be between the first temperature threshold and the second temperature threshold, then the heat exchange efficiency is the second heat exchange efficiency.

[0018] If the temperature difference is determined to be between the second temperature threshold and the third temperature threshold, then the heat exchange efficiency is the third heat exchange efficiency.

[0019] If the temperature difference is determined to be between the third temperature threshold and the fourth temperature threshold, then the heat exchange efficiency is the fourth heat exchange efficiency.

[0020] If the temperature difference is determined to be less than or equal to the fourth temperature threshold, then the heat exchange efficiency is the fifth heat exchange efficiency.

[0021] The heat exchange efficiency decreases sequentially from the first heat exchange efficiency to the second heat exchange efficiency, the third heat exchange efficiency, the fourth heat exchange efficiency, and the fifth heat exchange efficiency.

[0022] According to an embodiment of the present invention, the step of determining the compensation angle of the air guide plate based on the heat exchange efficiency specifically includes:

[0023] The first compensation angle, the second compensation angle, the third compensation angle, the fourth compensation angle, and the fifth compensation angle are determined sequentially based on the first heat exchange efficiency, the second heat exchange efficiency, the third heat exchange efficiency, the fourth heat exchange efficiency, and the fifth heat exchange efficiency.

[0024] Wherein, the first compensation angle is 0, the second compensation angle, the third compensation angle, the fourth compensation angle and the fifth compensation angle decrease sequentially, and all are negative values.

[0025] According to one embodiment of the present invention, the step of adjusting the air outlet direction to the target air outlet direction based on the heat exchange efficiency and the wind speed pattern further includes:

[0026] After adjusting the air outlet's airflow direction to the target airflow direction and allowing it to remain for a preset time, the movement state of the air guide plate is adjusted to a sweeping mode to reduce the impact on the user.

[0027] According to one embodiment of the present invention, the step of adjusting the air outlet direction to the target air outlet direction based on the heat exchange efficiency and the wind speed pattern further includes:

[0028] The length of the heat exchange path between the air outlet and the indoor air is determined based on the set angle of the air guide plate and the area where the user is located.

[0029] The final temperature of the outlet air after heat exchange is determined based on the heat exchange efficiency and the heat exchange path length.

[0030] The target heat exchange length is determined based on the final temperature.

[0031] According to one embodiment of the present invention, a pressure sensor is provided at the air outlet. Therefore, the step of determining the heat exchange path length between the air outlet and the indoor air based on the set angle of the air guide plate and the area where the user is located further includes:

[0032] Based on historical data, the relationship between the swing angle of the air guide plate and the air pressure at the air outlet is obtained;

[0033] The air guide plate is controlled to swing at a constant speed between the minimum and maximum angles, and the swing angle of the air guide plate and the measured air pressure at the air outlet are obtained.

[0034] Based on the swing angle, the measured air pressure, and the corresponding relationship, the area where the user is located in the room is determined.

[0035] According to one embodiment of the present invention, the embedded air conditioner includes a plurality of air outlets, each of which is provided with an air guide plate. The step of adjusting the air outlet direction to a target air outlet direction based on the heat exchange efficiency and the wind speed mode further includes:

[0036] The swing angles of the air guide plates at the multiple air outlets are different at the same time. When the multiple air guide plates swing outward or inward simultaneously relative to the center of the embedded air conditioner, the swing angles at the same time differ by a predetermined angle.

[0037] An embedded air conditioner according to a second aspect of the present invention is provided, wherein the embedded air conditioner executes a control method for an embedded air conditioner according to a first aspect of the present invention during operation.

[0038] The above-described one or more technical solutions of this invention have at least one of the following technical effects:

[0039] The control method for an embedded air conditioner according to an embodiment of the present invention includes the following steps: acquiring the fan speed mode and the outlet air temperature of the embedded air conditioner; determining the heat exchange efficiency between the outlet air and indoor air based on the outlet air temperature; adjusting the outlet air direction to a target outlet air direction based on the heat exchange efficiency and the fan speed mode; wherein, the target heat exchange length corresponding to the target outlet air direction is negatively correlated with the heat exchange efficiency. When the embedded air conditioner is running, for example in cooling mode or high fan speed mode, cold air is blown out of the outlet at high speed. This cold air blows along a set direction towards the user's area or onto the user, causing discomfort and reducing user comfort. The control method for the embedded air conditioner provided in this embodiment of the present invention can calculate the heat exchange efficiency between the outlet air and indoor air based on the outlet air temperature. When heat exchange efficiency is high, the cold air at the air outlet exchanges heat fully with the indoor air, resulting in a higher temperature of the cold air. When this portion of the cold air reaches the user's area or blows onto the user, the user is relatively comfortable. In this case, the air outlet's direction can be left unchanged or adjusted only slightly. With high heat exchange efficiency, the target heat exchange length is shorter. Conversely, with low heat exchange efficiency, the cold air at the air outlet exchanges less heat with the indoor air, resulting in a still lower temperature of the cold air. When this portion of the cold air reaches the user's area or blows onto the user, it may cause discomfort to the user. To address the severe discomfort caused by the airflow, the air outlet direction is adjusted to the target direction based on the fan speed mode and heat exchange efficiency. Along this target direction, the heat exchange path between the air outlet and the indoor air is increased to the target heat exchange length. In other words, when the heat exchange efficiency is low, the target heat exchange length is larger. The air outlet travels a longer heat exchange path before reaching the user's area or being blown onto the user. This improves the air outlet temperature, making the user's perceived temperature more comfortable and enhancing the user experience. Attached Figure Description

[0040] 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.

[0041] Figure 1 The flowchart of the control method for an embedded air conditioner provided in the embodiments of the present invention Figure 1 ;

[0042] Figure 2 The flowchart of the control method for an embedded air conditioner provided in the embodiments of the present invention Figure 2 . Detailed Implementation

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] In related technologies, embedded air conditioners are suspended from the ceiling of a room. When the difference between the indoor ambient temperature and the set temperature of the embedded air conditioner is small and the embedded air conditioner is running in high-speed mode, the air from the vent blows at high speed towards the user, which can cause discomfort and seriously affect the user experience.

[0049] The indoor unit of the embedded air conditioner provided in this embodiment of the invention is installed at the ceiling of the room. Multiple air outlets are provided on the side of the embedded air conditioner facing the room, and each air outlet is equipped with an air guide plate to adjust the airflow direction. Temperature detection elements are installed at the indoor unit or other locations in the room to detect the indoor ambient temperature. A temperature detection element is also provided at the air outlet of the embedded air conditioner to detect the outlet air temperature.

[0050] For a control method of an embedded air conditioner provided according to a first aspect embodiment of the present invention, please refer to [link to relevant documentation]. Figures 1 to 2 This includes the following steps:

[0051] S100: Obtain the fan speed mode and air outlet temperature of the embedded air conditioner.

[0052] S200. Determine the heat exchange efficiency between the air outlet and the indoor air based on the air outlet temperature.

[0053] S300: Adjust the air outlet direction to the target air outlet direction according to the heat exchange efficiency and wind speed mode; wherein, the target heat exchange length corresponding to the target air outlet direction is negatively correlated with the heat exchange efficiency.

[0054] In step S100, the embedded air conditioner, in response to an operation signal or a start signal, obtains the outlet air temperature through a temperature detection element located at the air outlet. The embedded air conditioner can operate in cooling or heating mode, and the air outlet can emit either cold or hot air. The fan speed mode of the embedded air conditioner can be determined in two ways: one is based on the user's personal needs, i.e., the user controls the fan speed mode via a remote control or control panel; the other is an automatic fan speed mode adjusted by the air conditioner based on the indoor and outdoor ambient temperatures. Fan speed modes include silent mode, low fan speed mode, medium fan speed mode, and high fan speed mode, etc.

[0055] In steps S200 and S300, when the embedded air conditioner is running, for example in cooling mode or high-speed mode, cold air is blown out of the air outlet at high speed. This cold air blows towards the user's area or onto the user along a set direction, causing discomfort and reducing user comfort. The embedded air conditioner control method provided in this embodiment of the invention can calculate the heat exchange efficiency between the air outlet and the indoor air based on the outlet temperature. When the heat exchange efficiency is high, the cold air at the outlet exchanges heat sufficiently with the indoor air, resulting in a higher temperature of the cold air. When this portion of the cold air reaches the user's area or blows onto the user, the user is more comfortable, and the air outlet direction can be adjusted only slightly or not at all; that is, when the heat exchange efficiency is high, the target heat exchange length is shorter. When the heat exchange efficiency is low, the cold air at the outlet exchanges less heat with the indoor air, and the temperature of the cold air remains low. When this portion of the cold air reaches the user's area or blows onto the user, it causes discomfort and reduces user comfort. To alleviate the user's severe discomfort, the air outlet direction was adjusted to the target air outlet direction based on the fan speed mode and heat exchange efficiency. Along the target air outlet direction, the heat exchange path length between the air outlet and the indoor air was adjusted to the target heat exchange length; that is, when the heat exchange efficiency is low, the target heat exchange length is longer. The air outlet travels a longer heat exchange path before reaching the user's area or blowing onto the user. At this time, the air outlet temperature is improved to a certain extent, the user's perceived temperature becomes milder, the user's comfort is improved, and the user experience is enhanced.

[0056] According to an embodiment of the present invention, the step of determining the heat exchange efficiency between the outlet air and the indoor air based on the outlet air temperature specifically includes:

[0057] S211. Obtain the indoor ambient temperature of the room where the embedded air conditioner is located.

[0058] S212. The heat exchange efficiency is determined based on the temperature difference between the outlet air temperature and the indoor ambient temperature. The heat exchange efficiency is positively correlated with the temperature difference.

[0059] In step S211, the indoor ambient temperature is obtained by a temperature sensing element installed in the room or at the indoor unit. To improve the accuracy of indoor temperature detection, multiple temperature sensing elements in the room need to be used in combination and then the average value is taken. The temperature sensing element at the indoor unit must be used in high fan speed mode, at which time the indoor air circulates faster at the indoor unit, and the accuracy of temperature detection is higher.

[0060] In step S212, the heat exchange efficiency is determined based on the difference between the outlet air temperature and the indoor ambient temperature. The heat exchange efficiency is positively correlated with the temperature difference. In cooling mode, the higher the indoor ambient temperature, the higher the heat exchange efficiency between the indoor air and the cold air at the outlet. In heating mode, the lower the indoor temperature, the higher the heat exchange efficiency between the indoor air and the hot air at the outlet. Different heat exchange efficiencies are determined based on different temperature differences. The relationship between temperature difference and heat exchange efficiency can be a continuous function or have multiple corresponding levels.

[0061] According to one embodiment of the present invention, the step of adjusting the air outlet direction to the target air outlet direction based on heat exchange efficiency and wind speed pattern specifically includes:

[0062] S321. If the wind speed mode is set to low wind speed mode or medium wind speed mode, the air outlet direction will remain in the original set direction.

[0063] S322. If the wind speed mode is determined to be high wind speed mode, the compensation angle of the air guide plate is determined according to the heat exchange efficiency, and the air guide plate is adjusted from the set angle to the target air outlet angle according to the compensation angle.

[0064] The control method for the embedded air conditioner provided in this embodiment of the invention can prevent high-speed cold air or high-speed hot air from blowing directly onto the user's area or onto the user. Therefore, in step S321, if the wind speed mode is low wind speed mode or medium wind speed mode, there is a longer buffer time when the cold air or hot air blows onto the user, and the stimulation to the user is weaker, so that the air outlet direction can be maintained in the original set direction.

[0065] In step S322, when the fan speed mode is high, the compensation angle of the air guide plate is determined based on the heat exchange efficiency. When the heat exchange efficiency is higher, the air outlet can fully exchange heat with the indoor air within a shorter heat exchange path, in which case the angle of the air guide plate can be left unchanged or adjusted only slightly. When the heat exchange efficiency is lower, the air outlet cannot fully exchange heat with the indoor air within a shorter heat exchange path, in which case the angle of the air guide plate needs to be adjusted significantly, resulting in a larger compensation angle.

[0066] In practical use, the angle of the air guide plate can be continuously adjusted from 0° to 90° (or 180°), and multiple position settings can also be set, such as position 1, position 2, position 3, position 4, position 5, etc. The compensation angle mentioned in the embodiments of the present invention can be a specific tilt angle, such as compensating ±15°, or it can be a compensation position, such as ±2 positions.

[0067] According to one embodiment of the present invention, the step of determining the heat exchange efficiency based on the temperature difference between the outlet air temperature and the indoor ambient temperature specifically includes:

[0068] S2121. If the temperature difference is greater than the first temperature threshold, then the heat exchange efficiency is the first heat exchange efficiency.

[0069] S2122. If the temperature difference is determined to be between the first temperature threshold and the second temperature threshold, then the heat exchange efficiency is the second heat exchange efficiency.

[0070] S2123. If the temperature difference is determined to be between the second temperature threshold and the third temperature threshold, then the heat exchange efficiency is the third heat exchange efficiency.

[0071] S2124. If the temperature difference is determined to be between the third temperature threshold and the fourth temperature threshold, then the heat exchange efficiency is the fourth heat exchange efficiency.

[0072] S2125. If the temperature difference is less than or equal to the fourth temperature threshold, then the heat exchange efficiency is the fifth heat exchange efficiency.

[0073] Among them, the first heat exchange efficiency, the second heat exchange efficiency, the third heat exchange efficiency, the fourth heat exchange efficiency, and the fifth heat exchange efficiency decrease in sequence.

[0074] In step S2121, when the temperature difference is greater than the first temperature threshold, for example, when the temperature difference is greater than 4 degrees Celsius, the heat exchange efficiency between the indoor air and the air outlet is relatively high, and the heat exchange efficiency is the first heat exchange efficiency.

[0075] In step S2122, when the temperature difference is between the first temperature threshold and the second temperature threshold, for example, when 4 degrees Celsius ≥ temperature difference > 3 degrees Celsius, the heat exchange efficiency between the indoor air and the air outlet is relatively high, and the heat exchange efficiency is the second heat exchange efficiency.

[0076] In step S2123, when the temperature difference is between the second temperature threshold and the third temperature threshold, for example, when 3 degrees Celsius ≥ temperature difference > 2 degrees Celsius, the heat exchange efficiency between the indoor air and the air outlet decreases, and the heat exchange efficiency is the third heat exchange efficiency.

[0077] In step S2124, when the temperature difference is between the third temperature threshold and the fourth temperature threshold, for example, when 2 degrees Celsius ≥ temperature difference > 1 degree Celsius, the heat exchange efficiency between the indoor air and the air outlet is low, and the heat exchange efficiency is the fourth heat exchange efficiency.

[0078] S2125. When the temperature difference is less than or equal to the fourth temperature threshold, for example, when the temperature difference is ≤1 degree Celsius, the heat exchange efficiency between the indoor air and the air outlet is very low, and the heat exchange efficiency is the fifth heat exchange efficiency.

[0079] According to an embodiment of the present invention, the step of determining the compensation angle of the air guide plate based on the heat exchange efficiency specifically includes:

[0080] S2220. Based on the first heat exchange efficiency, the second heat exchange efficiency, the third heat exchange efficiency, the fourth heat exchange efficiency, and the fifth heat exchange efficiency, determine the first compensation angle, the second compensation angle, the third compensation angle, the fourth compensation angle, and the fifth compensation angle in sequence.

[0081] Among them, the first compensation angle is 0, and the second, third, fourth and fifth compensation angles decrease in sequence, and all of them are negative values.

[0082] As can be seen from steps S2121 to S2125, the heat exchange efficiency is different under different temperature thresholds, and there is a corresponding relationship between the heat exchange efficiency and the compensation angle.

[0083] For example:

[0084] When the temperature difference is greater than 4 degrees Celsius, the heat exchange efficiency is the first heat exchange efficiency, which is relatively high, and the compensation angle is the first compensation angle, which can be 0° or 0 position settings. When 4 degrees Celsius ≥ temperature difference > 3 degrees Celsius, the heat exchange efficiency is the second heat exchange efficiency, and the compensation angle is the second compensation angle. When 3 degrees Celsius ≥ temperature difference > 2 degrees Celsius, the heat exchange efficiency is the third heat exchange efficiency, and the compensation angle is the third compensation angle. When 2 degrees Celsius ≥ temperature difference > 1 degree Celsius, the heat exchange efficiency is the fourth heat exchange efficiency, and the compensation angle is the fourth compensation angle. When the temperature difference is ≤ 1 degree Celsius, the heat exchange efficiency is the fifth heat exchange efficiency, and the compensation angle is the fifth compensation angle. At this time, the air guide plate is at the minimum air guide angle to avoid the air outlet blowing directly onto the user's area or onto the user as much as possible.

[0085] According to one embodiment of the present invention, the step of adjusting the air outlet direction to the target air outlet direction based on heat exchange efficiency and wind speed pattern further includes:

[0086] S400: After adjusting the air outlet's airflow direction to the target airflow direction and waiting for a preset time, adjust the air guide plate's movement state to the sweeping mode to reduce the impact on the user through the sweeping mode.

[0087] In step S400, after adjusting the air outlet's airflow direction to the target direction and allowing a preset time for this process, the indoor ambient temperature has changed to some extent, and the user has gradually become accustomed to the indoor temperature. The air guide vane's movement is then adjusted to a swing mode to reduce its impact on the user. In swing mode, cold or hot air from the air outlet will not blow directly onto the user, and the swing process increases the temperature uniformity of the indoor air, improving the user experience.

[0088] According to one embodiment of the present invention, the step of adjusting the air outlet direction to the target air outlet direction based on heat exchange efficiency and wind speed pattern further includes:

[0089] S351. Determine the length of the heat exchange path between the air outlet and the indoor air based on the set angle of the air guide plate and the area where the user is located.

[0090] S352. Determine the final temperature of the outlet air after heat exchange based on the heat exchange efficiency and the heat exchange path length.

[0091] S353. Determine the target heat exchange length based on the final temperature.

[0092] In step S351, when the set angle of the air guide plate directly corresponds to the area where the user is located, for example, tilting downwards at 90°, the distance between the air outlet and the area where the user is located is the shortest, and the heat exchange path length is the shortest.

[0093] In step S352, the heat exchange efficiency can be calculated by the temperature difference between the outlet air temperature and the indoor ambient temperature. When the wind speed and the length of the heat exchange path are determined, the final temperature of the outlet air after heat exchange can be preliminarily calculated.

[0094] In step S353, the target heat exchange length is determined based on the final temperature. If the final temperature makes the user feel uncomfortable, for example, the final temperature is too low in the cooling mode or too high in the heating mode, the target heat exchange length is deduced from the final temperature. That is, the heat exchange path length is adjusted to a reasonable target heat exchange length based on the difference between the final temperature and the comfort temperature.

[0095] According to one embodiment of the present invention, if a pressure sensor is installed at the air outlet, the step of determining the heat exchange path length between the air outlet and the indoor air based on the set angle of the air guide plate and the area where the user is located further includes:

[0096] S241. Read the correspondence between the swing angle of the air guide plate and the air pressure at the air outlet based on historical data.

[0097] S242. Control the air guide plate to swing at a constant speed between the minimum and maximum angles, and obtain the swing angle of the air guide plate and the measured air pressure at the air outlet.

[0098] S243. Determine the area where the user is located in the room based on the swing angle, measured air pressure, and corresponding relationships.

[0099] In step S241, based on the indoor structure of the room where the embedded air conditioner is located and the placement of furniture, different structures and placements will have a certain impact on the airflow from the air outlet. When the installation position of the embedded air conditioner remains unchanged, the impact on the airflow from the air outlet is definite, and at a specific angle, the air pressure at the air outlet is also definite. After the air guide plate at the air outlet swings back and forth multiple times, multiple sets of historical data are generated. Based on the historical data, the correspondence between the swing angle of the air guide plate and the air pressure at the air outlet can be calculated. This correspondence, after multiple calculations and fitting, has a certain representativeness.

[0100] In step S242, the air guide plate is controlled to swing uniformly between the minimum and maximum angles, and the swing angle of the air guide plate and the measured air pressure at the air outlet are obtained. When the air from the air outlet blows towards the user's area, the airflow and measured air pressure at the air outlet will change due to the obstruction of the airflow by the user's body. Although the change is slight, it can still be detected.

[0101] In step S243, by scanning the area where the user is located through a stable airflow, and comparing the feedback value of the measured air pressure with the corresponding relationship, the area where the moving person or object is located can be determined, thereby determining the area where the user is located or lives in the room.

[0102] According to one embodiment of the present invention, an embedded air conditioner includes multiple air outlets, each of which is provided with an air guide plate. The step of adjusting the air outlet direction to a target air outlet direction based on heat exchange efficiency and wind speed mode further includes:

[0103] S500 controls the air guide plates at multiple air outlets to swing at different angles at the same time. When multiple air guide plates swing outward or inward simultaneously relative to the center of the embedded air conditioner, the swing angles at the same time differ by a predetermined angle.

[0104] In step S500, the oscillation of the air guide vanes allows the airflow from the air conditioner to circulate, improving the air delivery effect, enhancing the uniformity of indoor airflow and the uniformity of temperature, and eliminating changes in the size of the airflow distribution range, making it more comfortable for users. In addition, because the oscillation angles of each air guide vane are different, the overall opening of the air outlet of the air conditioner is balanced, reducing air delivery noise and making the noise relatively stable, resulting in less noise pollution.

[0105] An embedded air conditioner according to a second aspect of the present invention is provided, wherein the embedded air conditioner executes a control method for an embedded air conditioner according to a first aspect of the present invention during operation.

[0106] When an embedded air conditioner is running, such as in cooling mode or high-speed fan mode, the air outlet blows out cold air at high speed. This cold air blows towards the user's area or onto the user in a set direction, causing discomfort and reducing user comfort. The embedded air conditioner control method provided in this embodiment of the invention calculates the heat exchange efficiency between the air outlet and the indoor air based on the outlet air temperature. When the heat exchange efficiency is high, the cold air at the outlet exchanges heat sufficiently with the indoor air, resulting in a higher temperature of the cold air. When this portion of the cold air reaches the user's area or blows onto the user, the user is relatively comfortable, and the air outlet's direction can be adjusted only slightly or not at all. With high heat exchange efficiency, the target heat exchange length is shorter. Conversely, when the heat exchange efficiency is low, the cold air at the outlet exchanges less heat with the indoor air, resulting in a still low temperature of the cold air. When this portion of the cold air reaches the user's area or blows onto the user, it causes discomfort and reduces user comfort. To alleviate the user's severe discomfort, the air outlet direction is adjusted to the target air outlet direction based on the fan speed mode and heat exchange efficiency. Along the target air outlet direction, the heat exchange path length between the air outlet and the indoor air is increased to the target heat exchange length. When the heat exchange efficiency is low, the target heat exchange length is larger. The air outlet travels a longer heat exchange path before reaching the user's area or blowing onto the user. At this time, the air outlet temperature is improved to a certain extent, the user's perceived temperature becomes milder, the user's comfort is improved, and the user experience is enhanced.

[0107] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A control method for an embedded air conditioner, characterized in that, include: Obtain the fan speed mode and air outlet temperature of the embedded air conditioner; The heat exchange efficiency between the air outlet and the indoor air is determined based on the air outlet temperature. Adjusting the air outlet direction to the target air outlet direction based on the heat exchange efficiency and the wind speed mode includes: determining the heat exchange path length between the air outlet and the indoor air based on the set angle of the air guide plate and the area where the user is located; determining the final temperature of the air outlet after heat exchange based on the heat exchange efficiency and the heat exchange path length; and determining the target heat exchange length based on the final temperature. The target heat exchange length corresponding to the target air outlet direction is negatively correlated with the heat exchange efficiency.

2. The control method for an embedded air conditioner according to claim 1, characterized in that, The step of determining the heat exchange efficiency between the air outlet and the indoor air based on the air outlet temperature specifically includes: Obtain the indoor ambient temperature of the room where the embedded air conditioner is located; The heat exchange efficiency is determined based on the temperature difference between the outlet air temperature and the indoor ambient temperature, and the heat exchange efficiency is positively correlated with the temperature difference.

3. The control method for an embedded air conditioner according to claim 2, characterized in that, The step of adjusting the air outlet direction to the target air outlet direction based on the heat exchange efficiency and the wind speed mode specifically includes: If the wind speed mode is determined to be low wind speed mode or medium wind speed mode, then the air outlet direction is maintained in the original set direction; If the wind speed mode is determined to be a high wind speed mode, the compensation angle of the air guide plate is determined according to the heat exchange efficiency, and the air guide plate is adjusted from the set angle to the target air outlet angle according to the compensation angle.

4. The control method for an embedded air conditioner according to claim 3, characterized in that, The step of determining the heat exchange efficiency based on the temperature difference between the outlet air temperature and the indoor ambient temperature specifically includes: If the temperature difference is determined to be greater than a first temperature threshold, then the heat exchange efficiency is the first heat exchange efficiency. If the temperature difference is determined to be between the first temperature threshold and the second temperature threshold, then the heat exchange efficiency is the second heat exchange efficiency. If the temperature difference is determined to be between the second temperature threshold and the third temperature threshold, then the heat exchange efficiency is the third heat exchange efficiency. If the temperature difference is determined to be between the third temperature threshold and the fourth temperature threshold, then the heat exchange efficiency is the fourth heat exchange efficiency. If the temperature difference is determined to be less than or equal to the fourth temperature threshold, then the heat exchange efficiency is the fifth heat exchange efficiency. The heat exchange efficiency decreases sequentially from the first heat exchange efficiency to the second heat exchange efficiency, the third heat exchange efficiency, the fourth heat exchange efficiency, and the fifth heat exchange efficiency.

5. The control method for an embedded air conditioner according to claim 4, characterized in that, The step of determining the compensation angle of the air guide plate based on the heat exchange efficiency specifically includes: The first compensation angle, the second compensation angle, the third compensation angle, the fourth compensation angle, and the fifth compensation angle are determined sequentially based on the first heat exchange efficiency, the second heat exchange efficiency, the third heat exchange efficiency, the fourth heat exchange efficiency, and the fifth heat exchange efficiency. Wherein, the first compensation angle is 0, the second compensation angle, the third compensation angle, the fourth compensation angle and the fifth compensation angle decrease sequentially, and all are negative values.

6. The control method for an embedded air conditioner according to any one of claims 1 to 5, characterized in that, The step of adjusting the air outlet direction to the target air outlet direction based on the heat exchange efficiency and the wind speed mode further includes: After adjusting the air outlet's airflow direction to the target airflow direction and allowing it to remain for a preset time, the air guide plate's movement is adjusted to a sweeping mode to reduce the impact on the user.

7. The control method for an embedded air conditioner according to claim 1, characterized in that, If a pressure sensor is installed at the air outlet, then the step of determining the heat exchange path length between the air outlet and the indoor air based on the set angle of the air guide plate and the area where the user is located, further includes: Based on historical data, the relationship between the swing angle of the air guide plate and the air pressure at the air outlet is obtained; The air guide plate is controlled to swing at a constant speed between the minimum and maximum angles, and the swing angle of the air guide plate and the measured air pressure at the air outlet are obtained. Based on the swing angle, the measured air pressure, and the corresponding relationship, the area where the user is located in the room is determined.

8. The control method for an embedded air conditioner according to any one of claims 1 to 5, characterized in that, The embedded air conditioner includes multiple air outlets, each of which is equipped with an air guide plate. The step of adjusting the air outlet direction to the target air outlet direction based on the heat exchange efficiency and the wind speed mode further includes: The swing angles of the air guide plates at the multiple air outlets are different at the same time. When the multiple air guide plates swing outward or inward simultaneously relative to the center of the embedded air conditioner, the swing angles at the same time differ by a predetermined angle.

9. An embedded air conditioner, characterized in that, The embedded air conditioner executes the control method of the embedded air conditioner as described in any one of claims 1 to 8 during operation.

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