Air conditioner and control method thereof

Abstract

The application provides an air conditioner and a control method thereof, and relates to the technical field of air conditioner control. A vortex tongue is arranged on one side of an evaporator in the air conditioner, and the position of the vortex tongue is opposite to an air outlet of the air conditioner. In the control method, when the vortex tongue is in an initial position, the heat exchange area of the evaporator blocked by the vortex tongue is greater than a first preset area, and when the vortex tongue is in a first position, the heat exchange area of the evaporator blocked by the vortex tongue is less than or equal to the first preset area. Therefore, when the vortex tongue is in the first position, the heat exchange area of the evaporator is greater, so that the air intake of the indoor unit in the air conditioner is greater, and then, under the condition that the rotating speed of the indoor unit is unchanged, the air outlet of the indoor unit is greater. Since the rotating speed of the indoor unit is further adjusted to ensure that the air outlet of the indoor unit is equal to the set air outlet, the control method can reduce the rotating speed of the indoor unit, so that the power consumption of the air conditioner can be reduced when the energy-saving instruction is received, and the energy-saving effect of the air conditioner is improved.

Description

Technical Field

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

[0002] Currently, increasing the rotation speed of the indoor unit in an air conditioner can increase the air volume output of the indoor unit, thereby improving the air conditioner's cooling / heating capacity to meet users' cooling / heating needs.

[0003] However, the stronger the air conditioner's cooling / heating capacity, the higher the indoor unit's rotation speed, and the greater the air conditioner's power consumption, resulting in poorer energy efficiency.

[0004] Therefore, how to improve the energy efficiency of air conditioners is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] In view of this, the present invention provides an air conditioner and a control method thereof to improve the energy-saving effect of the air conditioner.

[0006] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0007] This application provides a method for controlling an air conditioner, wherein a vortex is provided on one side of the evaporator in the air conditioner, and the position of the vortex is opposite to the air outlet of the indoor unit of the air conditioner; the method for controlling the air conditioner includes:

[0008] Determine if an energy-saving command has been received;

[0009] If the energy-saving command is not received, the vortex tongue is maintained in the initial position; when the vortex tongue is in the initial position, the heat exchange area of ​​the evaporator blocked by the vortex tongue is greater than the first preset area;

[0010] If the energy-saving command is received, the vortex is adjusted to the first position, and the rotation speed of the indoor unit is adjusted to ensure that the air volume of the indoor unit is equal to the set air volume; when the vortex is in the first position, the heat exchange area of ​​the evaporator blocked by the vortex is less than or equal to the first preset area.

[0011] Optionally, adjusting the vortex tongue to the first position includes:

[0012] Determine whether the air conditioner is in cooling mode;

[0013] If the air conditioner is in cooling mode, the position of the vortex tongue is adjusted according to the outdoor temperature to reduce the possibility of water droplets formed on the evaporator surface falling into the fan of the indoor unit.

[0014] Optionally, the position of the vortex tongue can be adjusted according to the outdoor temperature to reduce the likelihood of water droplets formed on the evaporator surface falling into the fan of the indoor unit, including:

[0015] Determine if the outdoor temperature is lower than the first preset temperature;

[0016] If the outdoor temperature is lower than the first preset temperature, the vortex is adjusted to the second position; when the vortex is in the second position, the heat exchange area of ​​the evaporator blocked by the vortex is less than or equal to the first preset area and greater than the second preset area;

[0017] If the outdoor temperature is greater than or equal to the first preset temperature, the vortex is adjusted to the third position; when the vortex is in the third position, the heat exchange area of ​​the evaporator blocked by the vortex is less than or equal to the second preset area.

[0018] Optionally, when the air conditioner is not in cooling mode, adjusting the vortex tongue to the first position further includes:

[0019] Determine whether the air conditioner is in heating mode;

[0020] If the air conditioner is in heating mode, the position of the vortex tongue is adjusted according to the energy-saving requirements in the energy-saving instruction to achieve the energy-saving requirements.

[0021] Optionally, adjusting the rotation speed of the indoor unit in the air conditioner to ensure that the air volume of the indoor unit equals the set air volume includes:

[0022] Depending on the position of the vortex tongue, the rotational speed of the indoor unit is adjusted according to different preset rules.

[0023] Optionally, the rotational speed of the indoor unit can be adjusted according to different preset rules based on the different positions of the vortex tongue, including:

[0024] Determine whether the vortex tongue is in the second position;

[0025] If the vortex tongue is in the second position, the rotational speed of the indoor unit is adjusted according to the first preset rule;

[0026] If the vortex tongue is not in the second position, then determine whether the vortex tongue is in the third position;

[0027] If the vortex tongue is in the third position, the rotational speed of the indoor unit is adjusted according to the second preset rule.

[0028] Optionally, the rotational speed of the indoor unit is adjusted according to a first preset rule, including:

[0029] Determine whether the absolute value of the difference between the current air volume of the indoor unit and the set air volume is less than or equal to a first preset value;

[0030] If the absolute value of the difference between the current air volume of the indoor unit and the set air volume is less than or equal to the first preset value, then the rotation speed of the indoor unit will be maintained at the set rotation speed.

[0031] If the absolute value of the difference between the current air volume of the indoor unit and the set air volume is greater than the first preset value, then the speed of the indoor unit is adjusted to the first target speed; the first target speed is equal to the set speed minus the first preset coefficient multiplied by the difference between the current air volume of the indoor unit and the set air volume.

[0032] Optionally, after adjusting the indoor unit's rotation speed to the first target rotation speed, the method further includes:

[0033] Determine whether the current airflow of the indoor unit is less than the set airflow.

[0034] If the current air volume is greater than or equal to the set air volume, the indoor unit's rotation speed remains unchanged;

[0035] If the current air volume is less than the set air volume, the rotation speed of the indoor unit is adjusted to the second target rotation speed; the second target rotation speed is equal to the first target rotation speed plus the first preset coefficient multiplied by the difference between the current air volume and the set air volume of the indoor unit.

[0036] Optionally, the rotational speed of the indoor unit is adjusted according to a second preset rule, including:

[0037] Determine whether the absolute value of the difference between the current air volume of the indoor unit and the set air volume is less than or equal to a second preset value;

[0038] If the absolute value of the difference between the current air volume of the indoor unit and the set air volume is less than or equal to the second preset value, then the rotation speed of the indoor unit will be maintained at the set rotation speed.

[0039] If the absolute value of the difference between the current air volume of the indoor unit and the set air volume is greater than the second preset value, then the speed of the indoor unit is adjusted to the third target speed; the third target speed is equal to the set speed minus the second preset coefficient multiplied by the difference between the current air volume of the indoor unit and the set air volume.

[0040] Optionally, after adjusting the indoor unit's rotation speed to the third target rotation speed, the method further includes:

[0041] Determine whether the current airflow of the indoor unit is less than the set airflow.

[0042] If the current air volume is greater than or equal to the set air volume, the indoor unit's rotation speed remains unchanged;

[0043] If the current air volume is less than the set air volume, the rotation speed of the indoor unit is adjusted to the fourth target rotation speed; the fourth target rotation speed is equal to the third target rotation speed plus the second preset coefficient multiplied by the difference between the current air volume and the set air volume of the indoor unit.

[0044] Optionally, before adjusting the vortex tongue to the first position, the method further includes:

[0045] Determine whether the air conditioner is in cooling mode;

[0046] If the air conditioner is in cooling mode, determine whether the outdoor temperature is lower than the second preset temperature;

[0047] If the outdoor temperature is lower than the second preset temperature, then the step of maintaining the vortex tongue in the initial position is performed;

[0048] If the outdoor temperature is greater than or equal to the second preset temperature, then the step of adjusting the vortex tongue to the first position is performed.

[0049] In another aspect, this application provides an air conditioner, wherein the controller in the air conditioner is used to perform the control method of the air conditioner as described in any of the preceding aspects of this application.

[0050] As can be seen from the above technical solution, the present invention provides an air conditioner control method. A vortex is provided on one side of the evaporator in the air conditioner, with the vortex positioned opposite the air outlet. In this control method, because the heat exchange area of ​​the evaporator blocked by the vortex is greater than a first preset area when the vortex is in its initial position, and less than or equal to the first preset area when the vortex is in its first position, the heat exchange area of ​​the evaporator is larger when the vortex is in its first position. This results in a larger air intake volume for the indoor unit, and consequently, a larger air outlet volume for the indoor unit while maintaining a constant indoor unit speed. Furthermore, since the indoor unit speed is subsequently adjusted to ensure that the indoor unit's air outlet volume equals the set air outlet volume, this control method can reduce the indoor unit's speed. Therefore, when receiving an energy-saving command, this control method can reduce the air conditioner's power consumption, thereby improving the air conditioner's energy-saving effect. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0052] Figure 1 A flowchart illustrating one embodiment of the air conditioner control method provided in this application.

[0053] Figures 2-4 These are schematic diagrams illustrating three different implementations of the indoor unit in an air conditioner.

[0054] Figure 5 A flowchart illustrating another embodiment of the air conditioner control method provided in this application.

[0055] Figure 6 A flowchart illustrating one implementation of step S220 provided in this application embodiment;

[0056] Figure 7 A flowchart illustrating another embodiment of the air conditioner control method provided in this application.

[0057] Figure 8 A flowchart illustrating one implementation of step S420 provided in this application embodiment;

[0058] Figure 9 A flowchart illustrating another embodiment of the air conditioner control method provided in this application;

[0059] Figure 10 A flowchart illustrating one implementation of step S610 provided in this application embodiment;

[0060] Figure 11 A flowchart illustrating one implementation of step S720 provided in this application embodiment;

[0061] Figure 12 A flowchart illustrating another implementation of step S720 provided in this application embodiment;

[0062] Figure 13 A flowchart illustrating one implementation of step S740 provided in this application embodiment;

[0063] Figure 14 A flowchart illustrating another implementation of step S740 provided in this application embodiment;

[0064] Figure 15 This is a flowchart illustrating another embodiment of the air conditioning control method provided in this application. Detailed Implementation

[0065] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0066] In this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0067] To improve the energy efficiency of air conditioners, this application provides an air conditioner control method, the specific process of which is as follows: Figure 1 As shown, the specific steps include:

[0068] S110. Determine whether an energy-saving command has been received.

[0069] If no energy-saving instruction is received, proceed to step S120; if an energy-saving instruction is received, proceed to steps S130 and S140 in sequence.

[0070] Among them, the energy-saving instruction is an instruction that instructs the controller in the air conditioner to perform corresponding operations on the corresponding devices in the air conditioner in order to achieve the purpose of energy saving.

[0071] S120, Maintain the vortex tongue in its initial position.

[0072] like Figure 2 , Figure 3 or Figure 4 As shown, the vortex 01 is positioned on one side of the evaporator 02 in the air conditioner, and the position of the vortex 01 is opposite to the air outlet 03 of the indoor unit in the air conditioner. Figure 2 , Figure 3 or Figure 4 In the diagram, 04 represents the indoor unit's fan.

[0073] When the vortex is in its initial position, the vortex blocks a heat exchange area of ​​the evaporator larger than the first preset area. For example, as... Figure 2 The position of the vortex tongue is shown.

[0074] The fact that the heat exchange area of ​​the evaporator blocked by the vortex tongue is larger than the first preset area indicates that the heat exchange area of ​​the evaporator blocked by the vortex tongue is very large. In practical applications, the first preset area is set according to the actual situation and is not specifically limited here.

[0075] S130, Adjust the vortex tongue to the first position.

[0076] When the vortex is in the first position, the heat transfer area of ​​the evaporator blocked by the vortex is less than or equal to the first preset area. For example, such as Figure 3 or Figure 4 The position of the vortex tongue is shown.

[0077] The fact that the heat exchange area of ​​the evaporator blocked by the vortex tongue is less than or equal to the first preset area indicates that the heat exchange surface of the evaporator blocked by the vortex tongue is not very large. The first preset area has been explained in detail above and will not be repeated here.

[0078] S140. Adjust the indoor unit's speed to ensure that the indoor unit's airflow is equal to the set airflow.

[0079] The set airflow rate is the airflow rate of the indoor unit when the vortex valve is in the default position and the indoor unit's rotation speed is equal to the set speed. In practical applications, the set airflow rate is pre-measured and stored in the air conditioner's controller, and can be directly retrieved during use.

[0080] In addition, the set rotation speed corresponds one-to-one with the set fan speed, and the correspondence between the set rotation speed and the set fan speed is measured in advance and stored in the controller of the air conditioner, which can be directly retrieved when in use.

[0081] Furthermore, the wind speed can be set manually by the user or automatically by the controller; no specific limitation is made here, and it depends on the specific circumstances, both of which are within the scope of protection of this application. Automatic setting specifically refers to the controller automatically setting the wind speed based on the actual situation when the user selects automatic wind speed.

[0082] In this control method, because the heat exchange area of ​​the evaporator blocked by the vortex tongue is larger than the first preset area when the vortex tongue is in the initial position, and less than or equal to the first preset area when the vortex tongue is in the first position, the heat exchange area of ​​the evaporator is larger when the vortex tongue is in the first position. This results in a larger air intake volume for the indoor unit of the air conditioner, and consequently, a larger air output volume for the indoor unit while maintaining a constant rotational speed. Furthermore, since the rotational speed of the indoor unit is subsequently adjusted to ensure that the air output volume equals the set air output volume, this control method can reduce the rotational speed of the indoor unit. Therefore, when receiving an energy-saving command, this control method can reduce the power consumption of the air conditioner, thus improving the energy-saving effect of the air conditioner.

[0083] Another embodiment of this application provides a specific implementation of step S130, the specific structure of which is as follows: Figure 5 As shown, the specific steps include:

[0084] S210. Determine if the air conditioner is in cooling mode.

[0085] If the air conditioner is in cooling mode, proceed to step S220; if the air conditioner is not in cooling mode, stop proceeding.

[0086] Cooling mode is a mode used by air conditioners to lower the indoor temperature. Cooling mode is a mature technology and will not be described in detail here.

[0087] S220. Adjust the position of the vortex tongue according to the outdoor temperature to reduce the possibility of water droplets formed on the evaporator surface falling into the fan of the indoor unit.

[0088] How to adjust the position of the vortex tongue according to the outdoor temperature to reduce the possibility of water droplets forming on the evaporator surface falling into the indoor unit's fan will be explained in detail in the following embodiments, and will not be repeated here.

[0089] In this embodiment, by adjusting the position of the vortex tongue according to the outdoor temperature, the possibility of water droplets formed on the evaporator surface falling into the fan of the indoor unit is reduced, thereby reducing the possibility of water blowing from the indoor unit and improving the user's experience of using the air conditioner.

[0090] Another embodiment of this application provides a specific implementation of step S220, the specific process of which is as follows: Figure 6 As shown, the specific steps include:

[0091] S310. Determine whether the outdoor temperature is lower than the first preset temperature.

[0092] If the outdoor temperature is lower than the first preset temperature, proceed to step S320; if the outdoor temperature is greater than or equal to the first preset temperature, proceed to step S330.

[0093] In this context, an outdoor temperature greater than or equal to the first preset temperature indicates a high outdoor temperature. Conversely, an outdoor temperature less than the first preset temperature indicates a low outdoor temperature. In practical applications, the first preset temperature is set based on actual conditions and is not specifically limited here. Typically, the first preset temperature is equal to 50℃.

[0094] Normally, when the outdoor temperature is high, very few water droplets form on the evaporator surface. Therefore, in this case, there is no need to consider the problem caused by water droplets falling from the evaporator surface into the indoor unit's fan. However, when the outdoor temperature is not very high, a considerable number of water droplets form on the evaporator surface. Therefore, in this case, it is necessary to consider the problem caused by water droplets falling from the evaporator surface into the indoor unit's fan.

[0095] S320, Adjust the vortex tongue to the second position.

[0096] When the vortex is in the second position, the heat exchange area of ​​the evaporator blocked by the vortex is less than or equal to the first preset area and greater than the second preset area. For example, Figure 3 The position of the vortex tongue is shown.

[0097] The fact that the heat exchange area of ​​the vortex-shielded evaporator is less than or equal to the first preset area but greater than the second preset area indicates that the heat exchange area of ​​the vortex-shielded evaporator is neither very large nor very small. In practical applications, the second preset area is set according to the actual situation and is not specifically limited here. The first preset area has already been explained in detail above and will not be repeated here.

[0098] S330, adjust the vortex tongue to the third position.

[0099] When the vortex is in the third position, the heat transfer area of ​​the evaporator blocked by the vortex is less than or equal to the second preset area. For example, as... Figure 4 The position of the vortex tongue is shown.

[0100] The fact that the heat exchange area of ​​the evaporator blocked by the vortex tongue is less than or equal to the second preset area indicates that the heat exchange area of ​​the evaporator blocked by the vortex tongue is very small. The second preset area has already been explained in detail above and will not be repeated here.

[0101] In this embodiment, since the heat exchange area of ​​the evaporator blocked by the vortex tongue is not small when the vortex tongue is in the second position, the heat exchange area of ​​the evaporator blocked by the vortex tongue is not small. Since the fan in the indoor unit is below the evaporator, the vortex tongue can block water droplets formed on the evaporator surface from falling into the fan of the indoor unit to a considerable extent. This can reduce the possibility of water droplets formed on the evaporator surface falling into the fan of the indoor unit, thereby reducing the possibility of water blowing from the indoor unit. Therefore, it can improve the user's experience of using the air conditioner.

[0102] In addition, compared with the second position, when the vortex is in the third position, the heat exchange area of ​​the evaporator is smaller, so the air intake of the indoor unit is larger. As a result, the air output of the indoor unit increases more while the indoor unit speed remains unchanged. Consequently, when the air output of the indoor unit is equal to the set air output, the indoor unit speed decreases more, thus improving the energy-saving effect of the air conditioner.

[0103] Another embodiment of this application also provides another implementation of step S130, the specific process of which is as follows: Figure 7 As shown. In the above embodiment, when the air conditioner is not in cooling mode, this embodiment further includes the following steps:

[0104] S410: Determine if the air conditioner is in heating mode.

[0105] If the air conditioner is in heating mode, proceed to step S420; if the air conditioner is not in heating mode, stop proceeding.

[0106] Heating mode is a mode used by air conditioners to raise the indoor temperature. Heating mode is already a very mature technology, so it will not be described in detail here.

[0107] S420. Adjust the position of the vortex tongue according to the energy-saving requirements in the energy-saving directive to meet the energy-saving requirements.

[0108] Among them, energy-saving requirements refer to the degree of energy saving. Specifically, the higher the energy-saving requirements, the higher the degree of energy saving, that is, the better the energy-saving effect; conversely, the lower the energy-saving requirements, the lower the degree of energy saving, that is, the worse the energy-saving effect.

[0109] In this embodiment, by adjusting the position of the vortex tongue according to the energy-saving requirements in the energy-saving instruction, the energy-saving requirements are met, thereby improving the energy-saving effect of the air conditioner and reducing the cost of using the air conditioner for users.

[0110] Another embodiment of this application provides a specific implementation of step S420, the specific process of which is as follows: Figure 8 As shown, the specific steps include:

[0111] S510. Determine whether the energy-saving requirement is less than the preset level.

[0112] If the energy-saving requirement is less than the preset level, proceed to step S520; if the energy-saving requirement is greater than or equal to the preset level, proceed to step S530.

[0113] An energy-saving requirement greater than or equal to the preset level indicates a high energy-saving requirement. Conversely, an energy-saving requirement less than the preset level indicates a relatively low energy-saving requirement. In practical applications, the preset level is set based on actual conditions and is not specifically limited here.

[0114] S520, adjust the vortex tongue to the second position.

[0115] It should be noted that the second position has been described in detail in the above embodiments, and will not be repeated here.

[0116] S530, adjust the vortex tongue to the third position.

[0117] It should be noted that the third position has been described in detail in the above embodiments, and will not be repeated here.

[0118] Compared to the second position, when the vortex is in the third position, the heat exchange area of ​​the evaporator is smaller, so the air intake of the indoor unit is larger. As a result, the air output of the indoor unit increases more while the indoor unit speed remains unchanged. Consequently, when the air output of the indoor unit equals the set air output, the indoor unit speed decreases more. Therefore, compared to the second position, the third position of the vortex improves the energy-saving effect of the air conditioner.

[0119] Since the third position of the vortex tongue improves the energy-saving effect of the air conditioner better than the second position, the vortex tongue can be adjusted to the third position when the energy-saving requirements are high, and to the second position when the energy-saving requirements are low, so that the air conditioner can meet the energy-saving requirements.

[0120] Another embodiment of this application provides a specific implementation of step S140, the specific structure of which can be found in [reference needed]. Figure 9 ( Figure 9 Only Figure 1 Based on this, the presentation includes the following steps:

[0121] S610. Adjust the speed of the indoor unit according to different preset rules based on the different positions of the vortex tongue.

[0122] In addition to the initial position, the vortex tongue can also include multiple positions, such as the second position and the third position in the above embodiment. In practical applications, it includes, but is not limited to, these. No specific limitation is made here. It can be determined according to the specific situation, and all of them are within the protection scope of this application.

[0123] In this embodiment, the air intake of the indoor unit varies depending on the position of the vortex tongue. Therefore, the air output of the indoor unit varies when the rotation speed remains constant. Thus, the rotation speed of the indoor unit needs to be adjusted according to different preset rules to ensure that the air output of the indoor unit is equal to the set air output.

[0124] Another embodiment of this application provides a specific implementation of step S610, which is applicable to situations where the vortex tongue can be in a second or third position in addition to the initial position. The specific flow of this implementation is as follows: Figure 10 As shown, the specific steps include:

[0125] S710. Determine whether the vortex tongue is in the second position.

[0126] If the vortex tongue is in the second position, proceed to step S720; if the vortex tongue is not in the second position, proceed to step S730.

[0127] It should be noted that the second position has been described in detail in the above embodiments, and will not be repeated here.

[0128] S720. Adjust the speed of the indoor unit according to the first preset rule.

[0129] The first preset rule is set based on the second position and the actual situation, and is not specifically limited here. How to adjust the indoor unit's speed according to the first preset rule will be explained in detail in the following embodiments, and will not be repeated here.

[0130] S730, Determine whether the vortex tongue is in the third position.

[0131] If the vortex tongue is in the third position, then proceed to step S740; if the vortex tongue is not in the third position, then stop execution.

[0132] It should be noted that the third position has been described in detail in the above embodiments, and will not be repeated here.

[0133] S740. Adjust the speed of the indoor unit according to the second preset rule.

[0134] The second preset rule is set based on the third position and the actual situation, and is not specifically limited here. How to adjust the indoor unit's speed according to the second preset rule will be explained in detail in the following embodiments, and will not be repeated here.

[0135] In this embodiment, when the vortex is in the second position, the rotation speed of the indoor unit is adjusted according to the first preset rule, and when the vortex is in the third position, the rotation speed of the indoor unit is adjusted according to the second preset rule. Therefore, the air volume of the indoor unit can be guaranteed to be equal to the set air volume.

[0136] Another embodiment of this application provides one implementation of step S720, the specific structure of which is as follows: Figure 11 As shown, the specific steps include:

[0137] S810: Determine whether the absolute value of the difference between the current air volume of the indoor unit and the set air volume is less than or equal to the first preset value.

[0138] If the absolute value of the difference between the current air volume of the indoor unit and the set air volume is less than or equal to the first preset value, then step S820 is executed; if the absolute value of the difference between the current air volume of the indoor unit and the set air volume is greater than the first preset value, then step S830 is executed.

[0139] If the absolute value of the difference between the current airflow and the set airflow of the indoor unit is greater than the first preset value, it indicates that the difference between the current airflow and the set airflow is significant. Conversely, if the absolute value of the difference between the current airflow and the set airflow is less than or equal to the first preset value, it indicates that the difference between the current airflow and the set airflow is not significant. In practical applications, the first preset value is set according to the actual situation and is not specifically limited here.

[0140] S820: Maintain the indoor unit's speed at the set speed.

[0141] It should be noted that the setting speed has been described in detail in the above embodiments, and will not be repeated here.

[0142] S830, Adjust the indoor unit's speed to the first target speed.

[0143] The first target speed is equal to the set speed minus the difference between the current airflow and the set airflow multiplied by the first preset coefficient. In practical applications, the first preset coefficient is set according to the actual situation and is not specifically limited here. Typically, the third position is as follows... Figure 3 The position of the vortex tongue shown indicates that the second preset coefficient is equal to 1.

[0144] Since the first target speed is equal to the set speed minus the first preset coefficient multiplied by the difference between the current air volume and the set air volume of the indoor unit, the first target speed is less than the set speed when the current air volume of the indoor unit is greater than the set air volume.

[0145] In this embodiment, since the absolute value of the difference between the current air volume and the set air volume of the indoor unit is less than or equal to the first preset value, it indicates that the difference between the current air volume and the set air volume of the indoor unit is not large. Therefore, if the speed of the indoor unit is reduced at this time, the air volume of the indoor unit will decrease, and thus the air volume of the indoor unit cannot be equal to the set air volume. Therefore, maintaining the speed of the indoor unit at the set speed at this time can make the air volume of the indoor unit equal to the set air volume.

[0146] In addition, since the absolute value of the difference between the current air volume and the set air volume of the indoor unit is greater than the first preset value, it indicates that the current air volume of the indoor unit is significantly different from the set air volume. Therefore, if the indoor unit speed is not reduced at this time, the air volume of the indoor unit will increase, making it impossible for the air volume of the indoor unit to equal the set air volume. Therefore, adjusting the speed of the indoor unit to the first target speed, that is, reducing the speed of the indoor unit, will make the air volume of the indoor unit equal to the set air volume.

[0147] In summary, this embodiment allows for adjusting the airflow of the indoor unit to equal the set airflow by adjusting the rotation speed of the indoor unit after adjusting the position of the vortex tongue.

[0148] Another embodiment of this application provides another implementation of step S720, the specific process of which is as follows: Figure 12 As shown. This embodiment, following step S830 in the above embodiment, further includes the following step:

[0149] S910: Determine whether the current air volume of the indoor unit is less than the set air volume.

[0150] If the current air volume of the indoor unit is greater than or equal to the set air volume, then proceed to step S920; if the current air volume of the indoor unit is less than the set air volume, then proceed to step S930.

[0151] It should be noted that the setting of the air volume has been described in detail in the above embodiments, and will not be repeated here.

[0152] S920, maintains the indoor unit's speed constant.

[0153] S930, Adjust the indoor unit's speed to the second target speed.

[0154] The second target speed is equal to the first target speed plus the first preset coefficient multiplied by the difference between the current air volume and the set air volume of the indoor unit. The first preset coefficient has been described in detail in the above embodiments and will not be repeated here.

[0155] Since the second target speed is equal to the first target speed plus the first preset coefficient multiplied by the difference between the current air volume and the set air volume of the indoor unit, the second target speed is greater than the set speed when the current air volume of the indoor unit is greater than the set air volume.

[0156] In this embodiment, when the current airflow of the indoor unit is less than the set airflow, the indoor unit's rotation speed is set to the second target speed, i.e., the indoor unit's rotation speed is increased, thus increasing the indoor unit's airflow. Furthermore, when the current airflow of the indoor unit is greater than or equal to the set airflow, the indoor unit's rotation speed is kept constant, thus maintaining the indoor unit's airflow. In summary, this embodiment further ensures that the indoor unit's airflow equals the set airflow.

[0157] Another embodiment of this application provides a specific implementation of step S740, the specific process of which is as follows: Figure 13 As shown, the specific steps include:

[0158] S1010. Determine whether the absolute value of the difference between the current air volume of the indoor unit and the set air volume is less than or equal to the second preset value.

[0159] If the absolute value of the difference between the current air volume of the indoor unit and the set air volume is less than or equal to the second preset value, then step S1020 is executed; if the absolute value of the difference between the current air volume of the indoor unit and the set air volume is greater than the second preset value, then step S1030 is executed.

[0160] If the absolute value of the difference between the current airflow of the indoor unit and the set airflow is greater than the second preset value, it indicates that the difference between the current airflow and the set airflow is significant. Conversely, if the absolute value of the difference between the current airflow and the set airflow is less than or equal to the second preset value, it indicates that the difference between the current airflow and the set airflow is not significant. In practical applications, the first preset value is set according to the actual situation and is not specifically limited here.

[0161] S1020: Maintain the indoor unit's speed at the set speed.

[0162] It should be noted that the setting speed has been described in detail in the above embodiments, and will not be repeated here.

[0163] S1030, Adjust the indoor unit's speed to the third target speed.

[0164] The third target speed is equal to the set speed minus the second preset coefficient multiplied by the difference between the current air volume and the set air volume of the indoor unit. In practical applications, the second preset coefficient is set according to the actual situation and is not specifically limited here. Under normal production conditions, the third position is as follows: Figure 4 The position of the vortex tongue shown indicates that the second preset coefficient is equal to 1.5.

[0165] Since the third target speed is equal to the set speed minus the difference between the current air volume and the set air volume of the indoor unit, the third target speed is less than the set speed when the current air volume of the indoor unit is greater than the set air volume.

[0166] In this embodiment, since the absolute value of the difference between the current air volume of the indoor unit and the set air volume is less than or equal to the second preset value, it indicates that the difference between the current air volume of the indoor unit and the set air volume is not large. Therefore, if the speed of the indoor unit is reduced at this time, the air volume of the indoor unit will decrease, and thus the air volume of the indoor unit cannot be equal to the set air volume. Therefore, maintaining the speed of the indoor unit at the set speed at this time can make the air volume of the indoor unit equal to the set air volume.

[0167] In addition, since the absolute value of the difference between the current air volume and the set air volume of the indoor unit is greater than the second preset value, it indicates that the current air volume of the indoor unit is significantly different from the set air volume. Therefore, if the indoor unit speed is not reduced at this time, the air volume of the indoor unit will increase, making it impossible for the air volume of the indoor unit to equal the set air volume. Therefore, the indoor unit speed is adjusted to the third target speed, that is, the indoor unit speed is reduced, so that the air volume of the indoor unit can equal the set air volume.

[0168] In summary, this embodiment allows for adjusting the airflow of the indoor unit to equal the set airflow by adjusting the rotation speed of the indoor unit after adjusting the position of the vortex tongue.

[0169] Another embodiment of this application provides another implementation of step S740, the specific process of which is as follows: Figure 14 As shown. This embodiment, following step S1030 in the above embodiment, further includes the following steps:

[0170] S1110. Determine whether the current air volume of the indoor unit is less than the set air volume.

[0171] If the current air volume is greater than or equal to the set air volume, proceed to step S1120; if the current air volume is less than the set air volume, proceed to step S1130.

[0172] It should be noted that the setting of the air volume has been described in detail in the above embodiments, and will not be repeated here.

[0173] S1120, Maintain the indoor unit's speed unchanged.

[0174] S1130, Adjust the indoor unit speed to the fourth target speed.

[0175] The fourth target speed is equal to the third target speed plus the second preset coefficient multiplied by the difference between the current air volume and the set air volume of the indoor unit. The second preset coefficient has been described in detail in the above embodiments and will not be repeated here.

[0176] Since the fourth target speed is equal to the third target speed plus the second preset coefficient multiplied by the difference between the current air volume and the set air volume of the indoor unit, the fourth target speed is greater than the set speed when the current air volume of the indoor unit is greater than the set air volume.

[0177] In this embodiment, when the current airflow of the indoor unit is less than the set airflow, the indoor unit's rotation speed is set to the fourth target speed, i.e., the indoor unit's rotation speed is increased, thus increasing the indoor unit's airflow. Furthermore, when the current airflow of the indoor unit is greater than or equal to the set airflow, the indoor unit's rotation speed is kept constant, thus maintaining the indoor unit's airflow. In summary, this embodiment further ensures that the indoor unit's airflow equals the set airflow.

[0178] Another embodiment of this application provides another implementation of the air conditioner control method, the specific process of which can be found in [reference needed]. Figure 15 ( Figure 15 Only Figure 1 This embodiment is presented based on step S130 in the above embodiment.

[0179] S1210. Determine if the air conditioner is in cooling mode.

[0180] If the air conditioner is in cooling mode, proceed to step S1220; if the air conditioner is not in cooling mode, stop proceeding.

[0181] It should be noted that the cooling mode has been described in detail in the above implementation method, and will not be repeated here.

[0182] S1220. Determine whether the outdoor temperature is lower than the second preset temperature.

[0183] If the outdoor temperature is lower than the second preset temperature, proceed to step S120; if the outdoor temperature is greater than or equal to the second preset temperature, proceed to step S130.

[0184] An outdoor temperature lower than the second preset temperature indicates that the outdoor temperature is very low. Conversely, an outdoor temperature greater than or equal to the second preset temperature indicates that the outdoor temperature is not very low. In practical applications, the second preset temperature is set according to the actual situation and is not specifically limited here. Typically, the second preset temperature is equal to 35℃.

[0185] It should be noted that if steps S1220 and S310 occur simultaneously, the second preset temperature is lower than the first preset temperature.

[0186] Under normal circumstances, when the outdoor temperature is very low, a lot of water droplets will form on the surface of the evaporator. Therefore, in this case, it is necessary to consider the problem caused by water droplets forming on the evaporator surface falling into the fan of the indoor unit.

[0187] In this embodiment, when the vortex is in the first position, the vortex blocks a large heat exchange area of ​​the evaporator. Therefore, the heat exchange area of ​​the evaporator blocked by the vortex is large. Since the fan in the indoor unit is below the evaporator, the vortex can largely prevent some of the water droplets formed on the evaporator surface from falling into the fan of the indoor unit. This reduces the possibility of water droplets forming on the evaporator surface falling into the fan of the indoor unit, thereby reducing the possibility of water blowing from the indoor unit. Therefore, it can improve the user's experience of using the air conditioner.

[0188] Another embodiment of this application provides an air conditioner, wherein the controller in the air conditioner is used to execute the control method of the air conditioner provided in the above embodiment.

[0189] The features described above in the disclosed embodiments can be substituted or combined with each other, enabling those skilled in the art to implement or use this application. The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention's technical solutions still fall within the protection scope of the present invention.

Claims

1. A method for controlling an air conditioner, characterized in that, A vortex is provided on one side of the evaporator in the air conditioner, and the position of the vortex is opposite to the air outlet of the indoor unit in the air conditioner. The air conditioner control method includes: Determine if an energy-saving command has been received; If the energy-saving command is not received, the vortex tongue is maintained in the initial position; when the vortex tongue is in the initial position, the heat exchange area of ​​the evaporator blocked by the vortex tongue is greater than the first preset area; If the energy-saving command is received, the vortex is adjusted to the first position, and the rotation speed of the indoor unit is adjusted to ensure that the air volume of the indoor unit is equal to the set air volume; when the vortex is in the first position, the heat exchange area of ​​the evaporator blocked by the vortex is less than or equal to the first preset area.

2. The air conditioning control method according to claim 1, characterized in that, Adjusting the vortex tongue to the first position includes: Determine whether the air conditioner is in cooling mode; If the air conditioner is in cooling mode, the position of the vortex tongue is adjusted according to the outdoor temperature to reduce the possibility of water droplets formed on the evaporator surface falling into the fan of the indoor unit.

3. The air conditioning control method according to claim 2, characterized in that, Adjusting the position of the vortex tongue according to the outdoor temperature to reduce the possibility of water droplets forming on the evaporator surface falling into the fan of the indoor unit includes: Determine if the outdoor temperature is lower than the first preset temperature; If the outdoor temperature is lower than the first preset temperature, the vortex is adjusted to the second position; when the vortex is in the second position, the heat exchange area of ​​the evaporator blocked by the vortex is less than or equal to the first preset area and greater than the second preset area; If the outdoor temperature is greater than or equal to the first preset temperature, the vortex is adjusted to the third position; when the vortex is in the third position, the heat exchange area of ​​the evaporator blocked by the vortex is less than or equal to the second preset area.

4. The air conditioning control method according to claim 2, characterized in that, When the air conditioner is not in cooling mode, adjusting the vortex tongue to the first position further includes: Determine whether the air conditioner is in heating mode; If the air conditioner is in heating mode, the position of the vortex tongue is adjusted according to the energy-saving requirements in the energy-saving instruction to achieve the energy-saving requirements.

5. The air conditioning control method according to any one of claims 1 to 4, characterized in that, Adjusting the rotation speed of the indoor unit in the air conditioner to ensure that the air volume of the indoor unit equals the set air volume includes: Depending on the position of the vortex tongue, the rotational speed of the indoor unit is adjusted according to different preset rules.

6. The air conditioning control method according to claim 5, characterized in that, Depending on the position of the vortex tongue, the rotational speed of the indoor unit is adjusted according to different preset rules, including: Determine whether the vortex tongue is in the second position; If the vortex tongue is in the second position, the rotational speed of the indoor unit is adjusted according to the first preset rule; If the vortex tongue is not in the second position, then determine whether the vortex tongue is in the third position; If the vortex tongue is in the third position, the rotational speed of the indoor unit is adjusted according to the second preset rule.

7. The air conditioning control method according to claim 6, characterized in that, According to the first preset rule, the rotation speed of the indoor unit is adjusted, including: Determine whether the absolute value of the difference between the current air volume of the indoor unit and the set air volume is less than or equal to a first preset value; If the absolute value of the difference between the current air volume of the indoor unit and the set air volume is less than or equal to the first preset value, then the rotation speed of the indoor unit will be maintained at the set rotation speed. If the absolute value of the difference between the current air volume of the indoor unit and the set air volume is greater than the first preset value, then the speed of the indoor unit is adjusted to the first target speed; the first target speed is equal to the set speed minus the first preset coefficient multiplied by the difference between the current air volume of the indoor unit and the set air volume.

8. The air conditioning control method according to claim 7, characterized in that, After adjusting the speed of the indoor unit to the first target speed, the method further includes: Determine whether the current airflow of the indoor unit is less than the set airflow. If the current air volume is greater than or equal to the set air volume, the indoor unit's rotation speed remains unchanged; If the current air volume is less than the set air volume, the rotation speed of the indoor unit is adjusted to the second target rotation speed; the second target rotation speed is equal to the first target rotation speed plus the first preset coefficient multiplied by the difference between the current air volume and the set air volume of the indoor unit.

9. The air conditioning control method according to claim 6, characterized in that, According to the second preset rule, the rotation speed of the indoor unit is adjusted, including: Determine whether the absolute value of the difference between the current air volume of the indoor unit and the set air volume is less than or equal to a second preset value; If the absolute value of the difference between the current air volume of the indoor unit and the set air volume is less than or equal to the second preset value, then the rotation speed of the indoor unit will be maintained at the set rotation speed. If the absolute value of the difference between the current air volume of the indoor unit and the set air volume is greater than the second preset value, then the speed of the indoor unit is adjusted to the third target speed; the third target speed is equal to the set speed minus the second preset coefficient multiplied by the difference between the current air volume of the indoor unit and the set air volume.

10. The air conditioning control method according to claim 9, characterized in that, After adjusting the indoor unit's speed to the third target speed, the process also includes: Determine whether the current airflow of the indoor unit is less than the set airflow. If the current air volume is greater than or equal to the set air volume, the indoor unit's rotation speed remains unchanged; If the current air volume is less than the set air volume, the rotation speed of the indoor unit is adjusted to the fourth target rotation speed; the fourth target rotation speed is equal to the third target rotation speed plus the second preset coefficient multiplied by the difference between the current air volume and the set air volume of the indoor unit.

11. The air conditioning control method according to any one of claims 1 to 4, characterized in that, Before adjusting the vortex tongue to the first position, the method further includes: Determine whether the air conditioner is in cooling mode; If the air conditioner is in cooling mode, determine whether the outdoor temperature is lower than the second preset temperature; If the outdoor temperature is lower than the second preset temperature, then the step of maintaining the vortex tongue in the initial position is performed; If the outdoor temperature is greater than or equal to the second preset temperature, then the step of adjusting the vortex tongue to the first position is performed.

12. An air conditioner, characterized in that, The controller in the air conditioner is used to perform the air conditioner control method as described in any one of claims 1 to 11.

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