Control method of air conditioner

Abstract

This invention discloses a control method for an air conditioner, the air conditioner comprising a first air outlet column and a second air outlet column. A first air outlet is formed at the front of the first air outlet column. A second air outlet is formed at the front of the second air outlet column, and a first air guide plate is provided at the second air outlet. An air-guiding interval is formed between the second air outlet column and the first air outlet column, and a second air guide plate is provided at its front end. The control method of the air conditioner includes: acquiring the indoor ambient temperature; when the difference between the indoor ambient temperature and the set temperature is less than or equal to a first preset difference, acquiring the temperature of the airflow at a preset distance in front of the first air outlet; and executing a first air supply mode when the temperature of the airflow at the preset distance in front of the first air outlet is less than or equal to the first preset value, or when the temperature of the airflow at the preset distance in front of the first air outlet is greater than or equal to a second preset value but less than or equal to the first preset value. The control method of the air conditioner of this invention can increase the air supply volume and solve the problem of cold air blowing directly on people, bringing a more comfortable air supply experience to users.

Description

Technical Field

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

[0002] With the widespread use of air conditioning, users have increasingly higher demands for the comfort and health benefits of airflow. Traditional floor-standing air conditioners have a fixed airflow volume, blowing cold air directly at people, making "air conditioning sickness" the biggest problem for users. In the traditional floor-standing air conditioner's airflow design, due to the conflict between airflow and noise, the maximum airflow is limited to a certain range. The cold air blown out by the air conditioner is relatively low in temperature, and blowing it directly at people causes physical discomfort, affecting the user experience. Traditional solutions to address the issue of cold air blowing directly at people mainly involve the airflow at the air outlet mixing with the indoor air at the outlet. While this achieves a mixing effect of hot and cold air, the airflow volume is relatively small, and the mixing effect is not very significant. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide a control method for an air conditioner that overcomes or at least partially solves the above problems, which can increase the air volume and solve the problem of cold air blowing directly on people, bringing users a more comfortable air supply experience.

[0004] Specifically, the present invention provides a control method for an air conditioner, the air conditioner comprising:

[0005] The first air outlet column is a vertical column, and a first air outlet for blowing out heat exchange airflow is opened on the front side of the first air outlet column.

[0006] The second air outlet column is a vertical column. A second air outlet for blowing out non-heat exchange airflow is opened on the front side of the second air outlet column. A first air guide plate is provided at the second air outlet. The second air outlet column is located on the horizontal side of the first air outlet column.

[0007] The second air outlet column is spaced apart from the first air outlet column, forming an air-guiding interval between them; a second air guide plate is provided at the front end of the air-guiding interval; wherein...

[0008] The control method for the air conditioner includes:

[0009] Obtain indoor ambient temperature;

[0010] When the difference between the indoor ambient temperature and the set temperature is less than or equal to a first preset difference, the temperature of the airflow at a preset distance in front of the first air outlet is obtained.

[0011] When the temperature of the airflow at a preset distance in front of the first air outlet is less than or equal to a first preset value, or when the temperature of the airflow at a preset distance in front of the first air outlet is greater than or equal to a second preset value and less than or equal to the first preset value, a first air supply mode is executed. The first air supply mode includes:

[0012] The front end of the first air guide plate is rotated toward the first air outlet column to a first preset position so that part or all of the airflow from the second air outlet is delivered in a diagonally forward direction toward the first air outlet column.

[0013] The front end of the second air guide plate is rotated to a second preset position so that part or all of the airflow from the air intake interval is sent forward.

[0014] The first air outlet is configured to deliver air at a first preset air volume or at a first preset air speed.

[0015] The second air outlet is configured to deliver air at a second preset air volume or a second preset air speed; the second preset air volume is less than the first preset air volume; the air volume corresponding to the second preset air speed is less than the air volume corresponding to the first preset air speed.

[0016] Optionally, the non-heat exchange airflow is fresh air, indoor air, or a mixture of fresh air and indoor air;

[0017] The control method for the air conditioner also includes: obtaining an index score of the indoor environment;

[0018] The air conditioner is controlled to blow out fresh air at least according to the received user fresh air demand start command or at least according to the indoor environment index score. The air conditioner blows out fresh air by making the airflow from the second air outlet entirely or partially fresh air.

[0019] Optionally, the air conditioner further includes an independent fresh air outlet, through which the air conditioner blows out fresh air; the second air outlet is given priority in blowing out fresh air, and when the amount of fresh air is greater than the amount of air coming out of the second air outlet, the remaining fresh air is blown out using the independent fresh air outlet.

[0020] Optionally, the indoor environment index scoring includes:

[0021] The index score and comprehensive index score of each component among the various components in indoor air;

[0022] The comprehensive index score of the indoor environment is the average of the scores of multiple indicators of various components.

[0023] Optionally, controlling the air conditioner to blow out fresh air based on the indoor environment index score includes:

[0024] When the comprehensive index score of the indoor environment is less than or equal to the first preset index score, the air conditioner blows out fresh air; or, when the index score of at least one component is less than or equal to the second preset index score, the air conditioner blows out fresh air.

[0025] The first preset indicator score is 0.7 to 0.9; the second preset indicator score is 0.5 to 0.7.

[0026] Optionally, when the air conditioner blows out fresh air, the speed of the fresh air fan used for fresh air intake of the air conditioner is controlled at least according to the indoor ambient temperature, so as to control the input speed and output volume of fresh air.

[0027] Optionally, the speed of the fresh air fan for fresh air intake of the air conditioner is controlled at least according to the indoor ambient temperature, including controlling the speed of the fresh air fan according to the indoor ambient temperature and an index score of the indoor environment.

[0028] Optionally, controlling the speed of the fresh air fan based on the indoor ambient temperature and the indoor environment index score includes:

[0029] When the difference between the indoor ambient temperature and the set temperature is less than the second preset difference, the speed of the fresh air fan is set to the first speed.

[0030] When the difference between the indoor ambient temperature and the set temperature is between the second preset difference and the third preset difference, the speed of the fresh air fan is set to the second speed, which is lower than the first speed; the third preset difference is greater than the second preset difference, the third preset difference is equal to the first preset difference, or the third preset difference is not equal to the first preset difference.

[0031] When the difference between the indoor ambient temperature and the set temperature is greater than a third preset difference, and the comprehensive index score of the indoor environment is less than or equal to the third preset index score, the speed of the fresh air fan is set to the third speed, which is lower than the second speed. When the difference between the indoor ambient temperature and the set temperature is greater than a third preset difference, and the comprehensive index score of the indoor environment is greater than the third preset index score, the fresh air fan is temporarily stopped until the difference between the indoor ambient temperature and the set temperature is less than or equal to the third preset difference or the index score of the indoor environment is less than or equal to the third preset index score.

[0032] The second preset difference is 0.5℃ to 1.5℃, the third preset difference is 1.5℃ to 2.5℃, and the third preset index score is 0.5 to 0.7.

[0033] Optionally, controlling the speed of the fresh air fan for fresh air intake in the air conditioner, at least according to the indoor ambient temperature, includes:

[0034] When the difference between the indoor ambient temperature and the set temperature is less than the second preset difference, the speed of the fresh air fan is set to the first speed.

[0035] When the difference between the indoor ambient temperature and the set temperature is between the second preset difference and the third preset difference, the speed of the fresh air fan is set to the second speed, which is lower than the first speed; the third preset difference is greater than the second preset difference, the third preset difference is equal to the first preset difference, or the third preset difference is not equal to the first preset difference.

[0036] If the difference between the indoor ambient temperature and the set temperature is greater than a third preset difference, the speed of the fresh air fan will be set to a third speed, which is lower than the second speed.

[0037] Optionally, the control method of the air conditioner further includes: stopping the air conditioner from blowing out fresh air when each of the multiple components in the indoor air meets the preset requirements.

[0038] This invention discloses a control method for an air conditioner. The arrangement of two air outlet columns significantly increases the total airflow of the air conditioner and dramatically accelerates room heat exchange. The control method ensures that the airflow from the second air outlet and the induced draft interval are directed towards the first air outlet column. Furthermore, the airflow volume or velocity setting of the second air outlet column, without affecting the cooling effect, facilitates thorough mixing of the non-heat-exchange airflow from the second outlet column with the heat-exchange airflow from the first outlet column. The temperature of the mixed airflow is closer to room temperature than the heat-exchange airflow, resulting in a gentler breeze and higher comfort. Moreover, since the difference between the indoor ambient temperature and the set temperature is less than or equal to a first preset difference, and the airflow temperature at the preset distance is also maintained within a certain range, the mixing of the airflow from the first and second air outlets achieves gentle air delivery, providing a cool yet not cold user experience.

[0039] 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

[0040] The following sections will describe some specific embodiments of the invention in detail 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:

[0041] Figure 1This is a flowchart of a control method for an air conditioner according to an embodiment of the present invention;

[0042] Figure 2 This is a flowchart of a control method for an air conditioner according to an embodiment of the present invention;

[0043] Figure 3 This is an external view of an air conditioner according to an embodiment of the present invention;

[0044] Figure 4 This is a schematic cross-sectional view of an air conditioner according to an embodiment of the present invention;

[0045] Figure 5 This is a schematic cross-sectional view of an air conditioner according to an embodiment of the present invention;

[0046] Figure 6 This is a schematic cross-sectional view of an air conditioner according to an embodiment of the present invention;

[0047] Figure 7 This is a schematic cross-sectional view of an air conditioner according to an embodiment of the present invention;

[0048] Figure 8 This is a schematic cross-sectional view of an air conditioner according to an embodiment of the present invention. Detailed Implementation

[0049] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0050] This invention provides a control method for an air conditioner. Figure 1 This is a flowchart of a control method for an air conditioner according to an embodiment of the present invention. See also... Figure 1 And refer to Figures 2 to 8 The air conditioner control method of this embodiment includes a first air outlet column 10 and a second air outlet column 20. The first air outlet column 10 is a vertical column with a first air outlet 11 for blowing out heat exchange airflow on its front side. The second air outlet column 20 is also a vertical column with a second air outlet 21 for blowing out non-heat exchange airflow on its front side. A first air guide plate 22 is provided at the second air outlet 21. The second air outlet column 20 is located on one side of the first air outlet column 10. The second air outlet column 20 and the first air outlet column 10 are spaced apart, forming an air intake interval 16. A second air guide plate 17 is provided at the front end of the air intake interval 16. Figure 1As shown, the control method of the air conditioner includes: acquiring the indoor ambient temperature. When the difference between the indoor ambient temperature and the set temperature is less than or equal to a first preset difference, acquiring the temperature of the airflow at a preset distance in front of the first air outlet 11. When the temperature of the airflow at the preset distance in front of the first air outlet 11 is less than or equal to a first preset value, or when the temperature of the airflow at the preset distance in front of the first air outlet 11 is greater than or equal to a second preset value and less than or equal to the first preset value, executing a first air supply mode. The first air supply mode includes: rotating the front end of the first air guide plate 22 toward the first air outlet column 10 to a first preset position, so that part or all of the airflow from the second air outlet 21 is delivered obliquely forward toward the first air outlet column 10 and toward the front. Rotating the front end of the second air guide plate 17 to a second preset position, so that part or all of the airflow from the air intake interval 16 is delivered forward. Delivering air from the first air outlet 11 according to a first preset air volume or according to a first preset wind speed. Delivering air from the second air outlet 21 according to a second preset air volume or according to a second preset wind speed. The second preset air volume is less than the first preset air volume. The air volume corresponding to the second preset wind speed is less than the air volume corresponding to the first preset wind speed.

[0051] The dual air outlet columns significantly increase the total airflow of the air conditioner, dramatically accelerating room heat exchange. The aforementioned control method ensures that the airflow from the second air outlet 21 and the air intake interval 16 is directed towards the first air outlet column 10. Furthermore, the airflow volume or velocity setting of the second air outlet column 20, without affecting the cooling effect, facilitates thorough mixing of the non-heat-exchange airflow from the second air outlet column 20 with the heat-exchange airflow from the first air outlet column 10. The temperature of the mixed airflow is closer to room temperature than the heat-exchange airflow, resulting in a gentler breeze and greater comfort. Moreover, since the difference between the indoor ambient temperature and the set temperature is less than or equal to the first preset difference, and the airflow temperature at the preset distance remains within a certain range, the mixing of the airflow from the first air outlet 11 and the second air outlet 21 achieves gentle airflow, providing a cool yet not cold user experience.

[0052] Further, in some embodiments of the present invention, the first preset difference is 1°C to 3°C, preferably 2°C. The first preset position is where the angle between the first air guide plate 22 and the front side of the vertical plane extending in the front-rear direction is 20° to 40°, preferably 30°. The second preset position is where the second air guide plate 17 is vertically arranged in the front-rear direction. The first preset air volume is 300 m³ / h to 500 m³ / h, preferably 400 m³ / h. The second preset air volume is 200 m³ / h to 400 m³ / h, preferably 300 m³ / h. The first preset wind speed is 0.75 m / s to 1.5 m / s, preferably 1 m / s. The second preset wind speed is 2.5 m / s to 3.5 m / s, preferably 2.6 m / s. The preset distance in front is 0.5 m to 1.5 m, preferably 1 m.

[0053] In some embodiments of the present invention, the non-heat exchange airflow is fresh air, indoor air, or a mixture of fresh air and indoor air. For example... Figure 2 As shown, the air conditioner control method further includes: acquiring an indoor environment index score. The air conditioner is controlled to blow out fresh air at least based on a received user fresh air demand activation command or at least based on the indoor environment index score. The air conditioner blows out fresh air by ensuring that all or part of the airflow from the second air outlet 21 is fresh air. In these embodiments, fresh air can be activated according to the user's wishes. Alternatively, the air conditioner can be controlled to blow out fresh air based on the indoor environment index score; when the indoor environment index score indicates a poor indoor environment, the air conditioner can be controlled to blow out fresh air.

[0054] In some embodiments of the present invention, the air conditioner further includes an independent fresh air outlet, through which the air conditioner blows out fresh air.

[0055] In some embodiments of the present invention, fresh air is preferentially blown out from the second air outlet 21. When the fresh air volume is greater than the air volume of the second air outlet 21, the remaining fresh air is blown out from an independent fresh air outlet.

[0056] In some embodiments of the present invention, the indoor environment index score includes: an index score for each of the various components in indoor air and a comprehensive index score for the indoor environment. The comprehensive index score for the indoor environment is the average of the multiple index scores for the various components.

[0057] The various components of indoor air obtained may include carbon dioxide, PM2.5, and oxygen. The index score for each component in indoor air can be determined by its attributes and / or score. Specifically, when the carbon dioxide concentration (ppm) > 1200, the carbon dioxide attribute and / or score is 0 to 2; when the carbon dioxide concentration (ppm) is between 900 and 1200, the carbon dioxide attribute and / or score is 2 to 4; when the carbon dioxide concentration (ppm) is between 600 and 900, the carbon dioxide attribute and / or score is 4 to 8; when the carbon dioxide concentration (ppm) is between 300 and 600, the carbon dioxide attribute and / or score is 6 to 8; and when the carbon dioxide concentration (ppm) is between 0 and 300, the carbon dioxide attribute and / or score is 8 to 10.

[0058] When the oxygen content is >24.5% or <17.5%, the oxygen attribute and / or fraction is 0 to 2; when the oxygen content is between 17.5% and 18.5% or between 23.5% and 24.5%, the oxygen attribute and / or fraction is 2 to 4; when the oxygen content is between 18.5% and 19.5% or between 22.5% and 23.5%, the oxygen attribute and / or fraction is 4 to 6; when the oxygen content is between 19.5% and 20.5% or between 21.5% and 22.5%, the oxygen attribute and / or fraction is 6 to 8; and when the oxygen content is between 20.5% and 21.5%, the oxygen attribute and / or fraction is 8 to 10.

[0059] When PM2.5 (µg / m³) > 55, the properties and / or fraction of carbon dioxide are 0 to 2; when PM2.5 (µg / m³) is between 45 and 55, the properties and / or fraction of carbon dioxide are 2 to 4; when PM2.5 (µg / m³) is between 35 and 45, the properties and / or fraction of carbon dioxide are 4 to 8; when PM2.5 (µg / m³) is between 25 and 35, the properties and / or fraction of carbon dioxide are 6 to 8; and when PM2.5 (µg / m³) < 25, the properties and / or fraction of carbon dioxide are 0 to 2.

[0060] In this embodiment, the specific numerical values ​​corresponding to the parameters within each interval of each component can be calculated using linear formulas, etc. Alternatively, smaller intervals can be used for further segmentation.

[0061] In some embodiments of the present invention, controlling the air conditioner to blow out fresh air based on the indoor environment index score includes: causing the air conditioner to blow out fresh air when the overall indoor environment index score is less than or equal to a first preset index score; or, causing the air conditioner to blow out fresh air when the index score of at least one component is less than or equal to a second preset index score. When the overall indoor environment index score is less than or equal to the first preset index score, or when the index score of at least one component is less than or equal to the second preset index score, it indicates that the indoor environment is poor and it is necessary to control the air conditioner to blow out fresh air to improve the indoor environment. In some embodiments, the first preset index score is 0.7 to 0.9, preferably 0.8. The second preset index score is 0.5 to 0.7, preferably 0.6. The first preset index score is greater than the second preset index score.

[0062] Furthermore, in some embodiments of the present invention, when the air conditioner blows out fresh air, the rotation speed of the fresh air fan 31 used for fresh air intake is controlled at least according to the indoor ambient temperature to control the input speed and output volume of the fresh air. The input of fresh air affects the indoor ambient temperature; controlling the input speed and output volume of the fresh air according to the indoor ambient temperature can avoid large fluctuations in the indoor ambient temperature.

[0063] In some embodiments of the present invention, the rotation speed of the fresh air fan 31 for fresh air intake of the air conditioner is controlled at least according to the indoor ambient temperature, including controlling the rotation speed of the fresh air fan 31 according to the indoor ambient temperature and an index score of the indoor environment.

[0064] In some embodiments of the present invention, controlling the rotation speed of the fresh air fan 31 based on the indoor ambient temperature and an indoor environment index score includes: when the difference between the indoor ambient temperature and the set temperature is less than a second preset difference, setting the rotation speed of the fresh air fan 31 to a first rotation speed. When the difference between the indoor ambient temperature and the set temperature is between a second preset difference and a third preset difference, setting the rotation speed of the fresh air fan 31 to a second rotation speed, the second rotation speed being lower than the first rotation speed. The third preset difference is greater than the second preset difference, the third preset difference may be equal to the first preset difference, or the third preset difference may not be equal to the first preset difference. When the difference between the indoor ambient temperature and the set temperature is greater than the third preset difference, and the comprehensive index score of the indoor environment is less than or equal to the third preset index score, the speed of the fresh air fan 31 is set to the third speed, which is lower than the second speed. When the difference between the indoor ambient temperature and the set temperature is greater than the third preset difference, and the comprehensive index score of the indoor environment is greater than the third preset index score, the fresh air fan 31 is temporarily stopped working until the difference between the indoor ambient temperature and the set temperature is less than or equal to the third preset difference or the comprehensive index score of the indoor environment is less than or equal to the third preset index score.

[0065] In some embodiments, the second preset difference is 0.5℃ to 1.5℃, preferably 1℃, and the third preset difference is 1.5℃ to 2.5℃, preferably 2℃. The third preset index score is 0.5 to 0.7, preferably 0.6. When the difference between the indoor ambient temperature and the set temperature is less than the second preset difference, the indoor temperature is relatively low, and the speed of the fresh air fan 31 can be set to the maximum, and the fresh air input is also the maximum. When the difference between the indoor ambient temperature and the set temperature is between the second and third preset differences, the indoor temperature is higher, and the speed of the fresh air fan 31 is reduced to correspondingly reduce the fresh air input. When the difference between the indoor ambient temperature and the set temperature is greater than the third preset difference, it indicates that the indoor temperature is fluctuating too much. At the same time, when the indoor environment index score is greater than the second preset index score, the indoor environment is not too bad. The fresh air input can be paused until the temperature drops to the point where the difference between the indoor ambient temperature and the set temperature is less than or equal to the third preset difference, or until the indoor environment deteriorates further to the point where the indoor environment index score is less than or equal to the second preset index score, then the fresh air can be restarted.

[0066] In some alternative embodiments of the present invention, controlling the rotational speed of the air conditioner's fresh air intake fan based at least on the indoor ambient temperature includes: when the difference between the indoor ambient temperature and the set temperature is less than a second preset difference, setting the rotational speed of the fresh air fan 31 to a first rotational speed. When the difference between the indoor ambient temperature and the set temperature is between a second preset difference and a third preset difference, setting the rotational speed of the fresh air fan 31 to a second rotational speed, which is lower than the first rotational speed. A third preset difference is greater than the second preset difference; the third preset difference may be equal to the first preset difference, or the third preset difference may not be equal to the first preset difference. When the difference between the indoor ambient temperature and the set temperature is greater than the third preset difference, setting the rotational speed of the fresh air fan 31 to a third rotational speed, which is lower than the second rotational speed.

[0067] In some embodiments of the present invention, the control method for the air conditioner further includes: stopping the air conditioner from blowing out fresh air when each of the multiple components in the indoor air meets a preset requirement. For example, stopping the air conditioner from blowing out fresh air when the index score of each component is greater than or equal to a fourth preset index score.

[0068] In some embodiments of the present invention, such as Figure 5 , Figure 6As shown, a third air guide plate 12 is provided at the first air outlet 11. A first air inlet 13 communicating with the first air outlet 11 is provided on the peripheral wall of the first air outlet column 10, such as on the side wall and rear wall of the first air outlet column 10. A heat exchanger 15 and a heat exchange fan 14 are provided inside the first air outlet column 10. The heat exchange fan 14 guides indoor air into the first air inlet 13, passes through the heat exchanger 15, and is blown out from the first air outlet 11. A second air inlet 23 communicating with the second air outlet 21 is provided on the peripheral wall of the second air outlet column 20, and a second air inlet 23 communicating with the second air outlet 21 is provided on the side wall of the second air outlet column 20. A cross-flow fan 24 is provided inside the second air outlet column 20, and a third air inlet 32 ​​communicating with the second air outlet 21 is opened at the lower end of the second air outlet column 20. The air conditioner also includes a lower casing 30, with a first air outlet column 10 and a second air outlet column 20 located at the top of the lower casing 30. A fresh air inlet and an independent fresh air outlet are provided on the peripheral wall of the lower casing 30. The fresh air inlet is connected to a third air inlet 32 ​​or an independent fresh air outlet via a diversion device. A fresh air fan 31 is located inside the lower casing 30, causing fresh air to enter the second air outlet column or the independent fresh air outlet from the fresh air inlet through the third air inlet. A damper is provided at the second air inlet 21, and a damper is provided at the third air inlet 32 ​​or the independent fresh air inlet. The diversion device can adjust the ratio of fresh air entering the independent fresh air outlet and the third air inlet 32.

[0069] In some embodiments of the present invention, the control method for the air conditioner further includes: acquiring the indoor ambient temperature. When the difference between the indoor ambient temperature and the set temperature is less than or equal to a fourth preset difference: when the difference between the indoor ambient temperature and the set temperature is greater than a first preset difference, or when the difference between the indoor ambient temperature and the set temperature is less than or equal to the first preset difference, acquiring the temperature of the airflow at a preset distance in front of the first air outlet 11, and executing a second air supply mode when the temperature of the airflow at the preset distance in front of the first air outlet 11 is greater than the first preset value. Figure 7As shown, the second air supply mode includes: rotating the front end of the first air guide plate 22 towards the first air outlet column to a third preset position, so that part or all of the airflow from the second air outlet 21 is supplied in a first direction. Rotating the front end of the second air guide plate 17 towards the first air outlet column to a fourth preset position, so that part or all of the airflow from the air intake interval 16 is supplied in a second direction. The angle between the first direction and the vertical plane extending in the front-rear direction is greater than the angle between the second direction and the vertical plane extending in the front-rear direction. The first air outlet 11 supplies air at a third preset air volume or a third preset air velocity. The second air outlet 21 supplies air at a fourth preset air volume or a fourth preset air velocity, where the fourth preset air volume is less than the third preset air volume, and the air velocity corresponding to the fourth preset air volume is greater than the air velocity corresponding to the third preset air volume. The fourth preset air velocity is greater than the third preset air velocity, and the air volume corresponding to the fourth preset air velocity is less than the air volume corresponding to the third preset air velocity.

[0070] Further, in some embodiments of the present invention, the third preset position is where the angle between the second air guide plate 22 and the front side of the vertical plane extending in the front-rear direction is 20° to 40°, preferably, the angle between the second air guide plate 22 and the front side of the vertical plane extending in the front-rear direction is 30°. The fourth preset position is where the angle between the third air guide plate 17 and the front side of the vertical plane extending in the front-rear direction is 5° to 15°, preferably, the angle between the third air guide plate 17 and the front side of the vertical plane extending in the front-rear direction is 10°. The third preset air volume is 500 m³ / h to 700 m³ / h, preferably, the third preset air volume is 600 m³ / h. The third preset wind speed is 1.5 m / s to 1.7 m / s, preferably, the third preset wind speed is 1.6 m / s. The fourth preset air volume is 300 m³ / h to 500 m³ / h, preferably, the fourth preset air volume is 400 m³ / h. The fourth preset wind speed is between 3.3 m / s and 3.7 m / s, preferably 3.5 m / s. The fourth preset temperature difference is between 8°C and 12°C, preferably 10°C. The air volume and wind speed set above not only ensure a certain cooling capacity but also make the user feel comfortable.

[0071] In some embodiments of the present invention, when the difference between the indoor ambient temperature and the set temperature is greater than a fourth preset difference, a third air supply mode is executed. The third air supply mode includes actively supplying air only through the first air outlet 11. At this time, the difference between the indoor ambient temperature and the set temperature is large, and controlling the heat exchange airflow from only the first air outlet 11 to be blown out can promote a rapid decrease in the indoor ambient temperature, at least to meet the user's cooling needs.

[0072] Furthermore, in some embodiments of the present invention, such as Figure 8As shown, the third air supply mode also includes: rotating the front end of the first air guide plate 12 to the fifth preset position, so that the first air outlet 11 supplies air according to the fifth preset air volume or according to the fifth preset air speed.

[0073] The fifth preset air volume is greater than the third preset air volume. The air volume corresponding to the fifth preset wind speed is greater than the air volume corresponding to the third preset wind speed. The fifth preset air volume is 1200 m³ / h to 1600 m³ / h, preferably 1400 m³ / h, and the fifth preset wind speed is 4 m / s to 5 m / s, preferably 4.5 m / s.

[0074] In this embodiment, in order to reduce the indoor ambient temperature as quickly as possible, while controlling the heat exchange airflow to be blown out only from the first air outlet 11, the air volume or air delivery speed of the first air outlet 11 is also increased.

[0075] Furthermore, in some embodiments of the present invention, such as Figure 7 As shown, the first air guide plate 12 includes a large air guide plate 121 and a small air guide plate 122 arranged laterally adjacent to each other, with the large air guide plate 121 close to the second air outlet column 20. The fifth preset position can also be that the large air guide plate 121 is vertically arranged along the front-to-back direction, and the small air guide plate 122 is arranged laterally. By reducing the air outlet area of ​​the first air outlet 11 (which can also be called the effective flow area), the air velocity is increased, thus accelerating the reduction of the indoor ambient temperature. Alternatively, both the large air guide plate 121 and the small air guide plate 122 have a certain angle with the vertical plane extending along the front-to-back direction at the fifth preset position, so that the first air guide plate 12 partially covers the first air outlet, reducing the air outlet area and increasing the air velocity at the first air outlet. In this case, when the air volume of the first air outlet 11 is 1400 m³ / h, the air velocity can reach 6.4 m / s, resulting in a more significant cooling effect.

[0076] In some embodiments of the present invention, the third air supply mode further includes: determining whether there is a person within a preset user distance in front of the first air outlet 11; if there is a person within the preset user distance in front of the first air outlet 11, rotating the front end of the first air guide plate 12 to a sixth preset position to expand the air outlet area of ​​the first air outlet 11, thereby reducing the air supply speed of the first air outlet 11. The preset user distance is 0.5m to 1.5m, preferably 1m.

[0077] The sixth preset position is where the first air guide plate 12 is vertically set along the front-to-back direction. Compared with the fifth preset position, this can increase the air outlet area of ​​the first air outlet 11, reduce the wind speed, and minimize the direct airflow to people.

[0078] 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: The first air outlet column is a vertical column, and a first air outlet for blowing out heat exchange airflow is opened on the front side of the first air outlet column. The second air outlet column is a vertical column. A second air outlet for blowing out non-heat exchange airflow is opened on the front side of the second air outlet column. A first air guide plate is provided at the second air outlet. The second air outlet column is located on the horizontal side of the first air outlet column. The second air outlet column is spaced apart from the first air outlet column, forming an air-guiding interval between them; a second air guide plate is provided at the front end of the air-guiding interval; wherein... The control method for the air conditioner includes: Obtain indoor ambient temperature; When the difference between the indoor ambient temperature and the set temperature is less than or equal to a first preset difference, the temperature of the airflow at a preset distance in front of the first air outlet is obtained. The first air supply mode is executed when the temperature of the airflow at a preset distance in front of the first air outlet is less than or equal to a first preset value, or when the temperature of the airflow at a preset distance in front of the first air outlet is greater than or equal to a second preset value and less than or equal to the first preset value. The first air supply mode includes: The front end of the first air guide plate is rotated toward the first air outlet column to a first preset position so that part or all of the airflow from the second air outlet is delivered in a diagonally forward direction toward the first air outlet column. The front end of the second air guide plate is rotated to a second preset position so that part or all of the airflow from the air intake interval is sent forward. The first air outlet is configured to deliver air at a first preset air volume or at a first preset air speed. The second air outlet is configured to deliver air at a second preset air volume or a second preset air speed; the second preset air volume is less than the first preset air volume; the air volume corresponding to the second preset air speed is less than the air volume corresponding to the first preset air speed.

2. The control method for an air conditioner according to claim 1, characterized in that, The non-heat exchange airflow is fresh air, indoor air, or a mixture of fresh air and indoor air; The control method for the air conditioner also includes: obtaining an index score of the indoor environment; The air conditioner is controlled to blow out fresh air at least according to the received user fresh air demand start command or at least according to the indoor environment index score. The air conditioner blows out fresh air by making the airflow from the second air outlet entirely or partially fresh air.

3. The control method for an air conditioner according to claim 2, characterized in that, The air conditioner also includes an independent fresh air outlet, through which the air conditioner blows out fresh air; the second air outlet is given priority in blowing out fresh air, and when the amount of fresh air is greater than the amount of air coming out of the second air outlet, the remaining fresh air is blown out using the independent fresh air outlet.

4. The control method for an air conditioner according to claim 2, characterized in that, The indoor environment index scoring includes: The index scores for each of the various components in indoor air and the comprehensive index score for the indoor environment; The comprehensive index score of the indoor environment is the average of the scores of multiple indicators of various components.

5. The control method for an air conditioner according to claim 4, characterized in that, Controlling the air conditioner to blow out fresh air based on the indoor environment index score includes: When the comprehensive index score of the indoor environment is less than or equal to the first preset index score, the air conditioner blows out fresh air; or, when the index score of at least one component is less than or equal to the second preset index score, the air conditioner blows out fresh air. The score of the first preset indicator is greater than the score of the second preset indicator.

6. The control method for an air conditioner according to claim 4, characterized in that, When the air conditioner blows out fresh air, the speed of the fresh air fan used for fresh air intake of the air conditioner is controlled at least according to the indoor ambient temperature, so as to control the input speed and output volume of fresh air.

7. The control method for an air conditioner according to claim 6, characterized in that, The speed of the fresh air fan for fresh air intake of the air conditioner is controlled at least according to the indoor ambient temperature, including controlling the speed of the fresh air fan according to the indoor ambient temperature and the index score of the indoor environment.

8. The control method for an air conditioner according to claim 7, characterized in that, The method of controlling the speed of the fresh air fan based on the indoor ambient temperature and the index score of the indoor environment includes: When the difference between the indoor ambient temperature and the set temperature is less than the second preset difference, the speed of the fresh air fan is set to the first speed. When the difference between the indoor ambient temperature and the set temperature is between the second preset difference and the third preset difference, the speed of the fresh air fan is set to the second speed, which is lower than the first speed; the third preset difference is greater than the second preset difference, the third preset difference is equal to the first preset difference, or the third preset difference is not equal to the first preset difference. When the difference between the indoor ambient temperature and the set temperature is greater than a third preset difference, and the comprehensive index score of the indoor environment is less than or equal to the third preset index score, the speed of the fresh air fan is set to the third speed, which is lower than the second speed. When the difference between the indoor ambient temperature and the set temperature is greater than a third preset difference, and the comprehensive index score of the indoor environment is greater than the third preset index score, the fresh air fan is temporarily stopped until the difference between the indoor ambient temperature and the set temperature is less than or equal to the third preset difference or the index score of the indoor environment is less than or equal to the third preset index score. The second preset difference is 0.5℃ to 1.5℃, and the third preset difference is 1.5℃ to 2.5℃.

9. The control method for an air conditioner according to claim 6, characterized in that, Controlling the speed of the fresh air fan for fresh air intake in the air conditioner based on the indoor ambient temperature includes at least the following: When the difference between the indoor ambient temperature and the set temperature is less than the second preset difference, the speed of the fresh air fan is set to the first speed. When the difference between the indoor ambient temperature and the set temperature is between the second preset difference and the third preset difference, the speed of the fresh air fan is set to the second speed, which is lower than the first speed; the third preset difference is greater than the second preset difference, the third preset difference is equal to the first preset difference, or the third preset difference is not equal to the first preset difference. If the difference between the indoor ambient temperature and the set temperature is greater than a third preset difference, the speed of the fresh air fan will be set to a third speed, which is lower than the second speed.

10. The control method for an air conditioner according to claim 6, characterized in that, Also includes: When each of the multiple components in the indoor air meets the preset requirements, the air conditioner stops blowing out fresh air.

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