Control method, storage medium and air conditioner

Abstract

The invention provides a control method, a storage medium and an air conditioner. The control method comprises the step of entering a checking and correcting process for checking and correcting the target exhaust temperature of the air conditioner. The verification and correction process comprises the steps that the opening degree change rate P0 of an electronic expansion valve of the air conditioner in a preset time period and the exhaust temperature change rate T0 of the air conditioner in the preset time period are obtained; judging whether the operation of the air conditioner is stable or not according to the opening degree change rate P0 and the exhaust temperature change rate T0; and under the condition that the operation of the air conditioner is unstable, whether the target exhaust temperature of the air conditioner is adjusted or not is determined by combining the humidity condition of the indoor environment where the air conditioner is located. By means of the technical scheme, the technical problem that in the prior art, due to the fact that high air humidity greatly influences adjustment of the exhaust temperature of the air conditioner, operation of the air conditioner is unstable can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner control, and in particular, to a control method, a storage medium, and an air conditioner. Background Art

[0002] Currently, the target exhaust temperature of an existing air conditioner is often set by detecting the external environmental temperature, and the exhaust temperature of the air conditioner is adjusted according to the target exhaust temperature.

[0003] However, for an activity place with a high air humidity, when the indoor air humidity is high, the measured exhaust temperature of the compressor in the air conditioning system will be too high, while the target exhaust parameter corresponding to the currently set ambient parameters in the air conditioning system is low, resulting in the electronic expansion valve of the air conditioning system constantly opening wide, unstable system operation, affecting the service life of the unit, and poor user thermal comfort experience. Summary of the Invention

[0004] The main object of the present invention is to provide a control method, a storage medium, and an air conditioner to solve the technical problem in the prior art that the regulation of the exhaust temperature of the air conditioner is greatly affected by high air humidity, resulting in unstable operation of the air conditioner.

[0005] To achieve the above object, according to one aspect of the present invention, a control method is provided, including:

[0006] Enter a calibration and correction process for calibrating and correcting the target exhaust temperature of the air conditioner, and the calibration and correction process includes:

[0007] Obtain the opening change rate of the electronic expansion valve of the air conditioner within a predetermined time period and the exhaust temperature change rate of the air conditioner within the predetermined time period;

[0008] Judge whether the operation of the air conditioner is stable according to the opening change rate and the exhaust temperature change rate;

[0009] When the operation of the air conditioner is unstable, determine whether to adjust the target exhaust temperature of the air conditioner in combination with the humidity condition of the indoor environment where the air conditioner is located.

[0010] Further, the judging whether the operation of the air conditioner is stable according to the opening change rate and the exhaust temperature change rate includes:

[0011] Compare the opening change rate P0 with a first preset change rate P, and compare the exhaust temperature change rate T0 with a second preset change rate T;

[0012] Judge whether the operation of the air conditioner is stable according to the comparison result between the opening change rate P0 and the first preset change rate P, and the comparison result between the exhaust gas temperature change rate T0 and the second preset change rate T0.

[0013] Further, the judging whether the operation of the air conditioner is stable according to the comparison result between the opening change rate P0 and the first preset change rate P, and the comparison result between the exhaust gas temperature change rate T0 and the second preset change rate T0 includes:

[0014] When P0 > P and T0 > T, judge that the operation of the air conditioner is in an unstable situation;

[0015] When P0 ≤ P or T0 ≤ T, judge that the operation of the air conditioner is in a stable situation, and control the air conditioner to maintain the current operating state.

[0016] Further, the determining whether to adjust the target exhaust gas temperature of the air conditioner in combination with the humidity condition of the indoor environment where the air conditioner is located includes:

[0017] Obtain the difference △d between the actual humidity value of the indoor environment within the predetermined time period and the humidity value of the external environment corresponding to the target exhaust gas temperature, and determine whether to adjust the target exhaust gas temperature in combination with the magnitude of the difference △d.

[0018] Further, the determining whether to adjust the target exhaust gas temperature in combination with the magnitude of the difference △d includes:

[0019] Compare △d with the preset temperature difference d;

[0020] When △d > d, determine that it is necessary to adjust the magnitude of the target exhaust gas temperature;

[0021] When △d ≤ d, determine that it is not necessary to adjust the magnitude of the target exhaust gas temperature, and control the air conditioner to maintain the current operating state.

[0022] Further, after determining that it is necessary to adjust the magnitude of the target exhaust gas temperature, the verifying and correcting the target exhaust gas temperature of the air conditioner further includes:

[0023] Obtain the actual cooling capacity Q of the air conditioner 供 and the cooling capacity Q required by the indoor environment where the air conditioner is located 需 , and determine the difference △Q between the actual cooling capacity Q of the air conditioner 供 and the cooling capacity Q required by the indoor environment where the air conditioner is located 需 ;

[0024] Determine the correction amount for the target exhaust gas temperature based on △Q, △d, and the change rate of the exhaust gas temperature of the air conditioner within the predetermined time period, and adjust the magnitude of the target exhaust gas temperature according to the correction amount to enter the correction process.

[0025] Further, the control method further includes:

[0026] After a first predetermined time of entering the correction process, enter the verification and correction process again; and / or,

[0027] After a second predetermined time of starting the air conditioner, control the air conditioner to enter the verification and correction process.

[0028] Further, the obtaining of the change rate of the opening degree of the electronic expansion valve of the air conditioner within the predetermined time period and the change rate of the exhaust gas temperature of the air conditioner within the predetermined time period includes:

[0029] Obtain the opening degree Pn+1 of the electronic expansion valve when the air conditioner operates for t + t1 * n; obtain the opening degree Pn of the electronic expansion valve when the air conditioner operates for t + t2 * n; calculate the change rate of the opening degree according to the formula Pn+1 / Pn = P0;

[0030] Obtain the actual exhaust gas temperature Tn+1 of the air conditioner when the air conditioner operates for t + t1 * n; obtain the set target exhaust gas temperature Tn corresponding to the environmental parameters when the air conditioner operates for t + t2 * n; calculate the change rate of the temperature according to the formula Tn+1 / Tn = P0;

[0031] Wherein, t is the operation duration at the initial opening degree after the air conditioner is turned on, n is the number of times the air conditioner enters the verification and correction process, and t1 > t2.

[0032] According to another aspect of the present invention, there is provided a computer-readable storage medium, the computer-readable storage medium including a stored program, wherein the program executes the control method provided above when running.

[0033] According to still another aspect of the present invention, there is provided an air conditioner that executes the control method provided above, the air conditioner including:

[0034] A verification and correction module, configured to enter a verification and correction process for verifying and correcting the target exhaust gas temperature of the air conditioner; the verification and correction module includes:

[0035] An obtaining module, configured to obtain the change rate of the opening degree of the electronic expansion valve of the air conditioner within the predetermined time period and the change rate of the exhaust gas temperature of the air conditioner within the predetermined time period;

[0036] A judgment module, configured to judge whether the operation of the air conditioner is stable according to the opening change rate and the exhaust gas temperature change rate;

[0037] An adjustment module, configured to determine whether to adjust the target exhaust gas temperature of the air conditioner in combination with the humidity condition of the indoor environment where the air conditioner is located when the operation of the air conditioner is unstable.

[0038] Applying the technical solution of the present invention can facilitate determining whether humidity has a great impact on the control process of the exhaust gas temperature of the air conditioner, and readjusting the target exhaust gas temperature of the air conditioner under the condition that humidity has a great impact on the exhaust gas humidity of the air conditioner, so as to avoid the opening of the electronic expansion valve continuously increasing due to a large difference from the target exhaust gas temperature, resulting in unstable operation of the air conditioner, improving the influence on the service life of the unit, enhancing the user's thermal comfort experience, and improving the operation stability of the air conditioner. Description of the Drawings

[0039] The specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0040] Figure 1 Shows a schematic flow chart of a calibration and correction process provided by an embodiment of the present invention;

[0041] Figure 2 Shows a flow chart of a control method provided by an embodiment of the present invention. Detailed Embodiments

[0042] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0043] As Figure 1 shown, Embodiment 1 of the present invention provides a control method, which includes: entering a calibration and correction process for calibrating and correcting the target exhaust gas temperature of the air conditioner. The calibration and correction process includes: obtaining the opening change rate P0 of the electronic expansion valve of the air conditioner within a predetermined time period and the exhaust gas temperature change rate T0 of the air conditioner within the predetermined time period; judging whether the operation of the air conditioner is stable according to the opening change rate P0 and the exhaust gas temperature change rate T; and determining whether to adjust the target exhaust gas temperature of the air conditioner in combination with the humidity condition of the indoor environment where the air conditioner is located when the operation of the air conditioner is unstable.

[0044] By adopting the control method provided in this embodiment, it is possible to easily determine whether humidity has a significant impact on the regulation process of the exhaust temperature of the air conditioner, and to readjust the target exhaust temperature of the air conditioner under the condition that humidity has a significant impact on the exhaust humidity of the air conditioner, thereby avoiding the unstable operation of the air conditioner caused by the opening of the electronic expansion valve being continuously opened due to a large difference from the target exhaust temperature, reducing the impact on the life of the unit, and improving the user's thermal comfort experience. Therefore, the control method provided in this embodiment can solve the technical problem in the prior art that the high air humidity has a significant impact on the regulation of the exhaust temperature of the air conditioner, resulting in unstable operation of the air conditioner.

[0045] Specifically, the electronic expansion valve can be understood as a valve used to adjust the flow rate of the refrigerant.

[0046] In this embodiment, judging whether the operation of the air conditioner is stable according to the opening change rate and the exhaust temperature change rate includes: comparing the opening change rate P0 with a first preset change rate P, and comparing the exhaust temperature change rate T0 with a second preset change rate T; judging whether the operation of the air conditioner is stable according to the comparison result of the opening change rate P0 with the first preset change rate P and the comparison result of the exhaust temperature change rate T0 with the second preset change rate T0. By adopting such a method, it is possible to provide a judgment standard for judging the operation stability of the air conditioner, so as to accurately judge whether the operation of the air conditioner is stable.

[0047] Specifically, whether the operation of the air conditioner is stable is judged based on the comparison results of the opening change rate P0 and the first preset change rate P, and the comparison results of the exhaust temperature change rate T0 and the second preset change rate T0, including: when P0>P and T0>T, the operation of the air conditioner is judged to be unstable; when P0≤P or T0≤T, the operation of the air conditioner is judged to be stable, and the air conditioner is controlled to maintain the current operating state.

[0048] Specifically, for household air conditioners, T can be set to 0.2°C / min to 0.4°C / min (including 0.2°C / min and 0.4°C / min), and P can be set to 10 seconds / step to 12 seconds / step (including 10 seconds / step and 12 seconds / step). Preferably, T can be set to 0.3°C / min, and P can be set to 11 seconds / step.

[0049] In this embodiment, in combination with the humidity condition of the indoor environment where the air conditioner is located, it is determined whether to adjust the target exhaust temperature of the air conditioner, including: obtaining the difference Δd between the actual humidity value of the indoor environment within a predetermined time period and the humidity value of the external environment corresponding to the target exhaust temperature, and determining whether to adjust the target exhaust temperature in combination with the magnitude of the difference Δd. In this way, it is convenient to further confirm whether the unstable operation of the air conditioner is normal or abnormal when it is judged that the operation of the air conditioner is unstable, and then it is convenient to accurately judge whether it is necessary to further adjust the target exhaust temperature to ensure the accuracy of the adjustment.

[0050] Specifically, determining whether to adjust the target exhaust temperature in combination with the magnitude of the difference Δd includes: comparing Δd with a preset temperature difference d; when Δd > d, it is determined that the magnitude of the target exhaust temperature needs to be adjusted; when Δd ≤ d, it is determined that the magnitude of the target exhaust temperature does not need to be adjusted, and the air conditioner is controlled to maintain the current operating state. By adopting such a method, it is convenient to confirm whether the unstable operation of the air conditioner is normal or abnormal according to the comparison of the magnitude of the difference Δd and the preset temperature difference; when Δd > d, it is confirmed that the unstable operation of the air conditioner is abnormal and is caused by the influence of high humidity. In this case, by adjusting the magnitude of the target exhaust temperature, it is convenient to better improve the accuracy of the control of the air conditioner. Specifically, d can take a value of 5.

[0051] In this embodiment, after determining that the magnitude of the target exhaust temperature needs to be adjusted, the verification and correction of the target exhaust temperature of the air conditioner further includes: obtaining the actual cooling capacity Q of the air conditioner 供 and the cooling capacity Q required by the indoor environment where the air conditioner is located 需 , and determining the difference ΔQ between the actual cooling capacity Q of the air conditioner 供 and the cooling capacity Q required by the indoor environment where the air conditioner is located 需 ; determining the correction amount of the target exhaust temperature according to ΔQ, Δd and the exhaust temperature change rate of the air conditioner within a predetermined time period, and adjusting the magnitude of the target exhaust temperature according to the correction amount to enter the correction process. By adopting such a method, it is convenient to further improve the correction accuracy of the target exhaust temperature of the air conditioner, so that the air conditioner can operate more stably.

[0052] Specifically, the larger ΔQ and Δd are, the larger the corresponding correction amount of the target exhaust temperature is.

[0053] Specifically, the correction amount of the target exhaust temperature can query the correction amount according to ΔQ and Δd in the following table, and the corrected target exhaust temperature = the target exhaust temperature before correction + the target exhaust temperature before correction * the percentage in the table. Among them, the correction amount of the target exhaust temperature is the target exhaust temperature before correction * the percentage in the table.

[0054] If the exhaust gas temperature change rate is relatively large (for household air conditioners, an exhaust gas temperature change rate > 0.3 °C / min corresponds to a relatively large exhaust gas temperature change rate; for commercial air conditioner products, the requirements for comfort are relatively low, and this value can be appropriately increased according to the unit conditions), it indicates that the system operation is relatively unstable. At this time, the target exhaust gas temperature correction value should be reduced, that is, subtract 1% from the percentage in the following table. Among them, △d can be understood as the difference in relative humidity, with the corresponding unit of %RH, and the unit of △Q is watt (W).

[0055]

[0056] Specifically, the control method further includes: after a first predetermined time when entering the correction process, entering the calibration and correction process again. By adopting such a method, it is possible to better determine whether the operation of the air conditioning system corrected by the correction process is stable and accurate.

[0057] Specifically, after a second predetermined time when the air conditioner starts, control the air conditioner to enter the calibration and correction process. In this way, it is possible to ensure that the air conditioner has a sufficient time period from startup to stable operation. Specifically, the second predetermined time is the operation duration when the air conditioner can operate at the initial opening after startup, so as to ensure that the air conditioner has entered the normal operation mode at this time, and to avoid misjudgment caused by entering the calibration and correction process prematurely when the air conditioner starts unstably.

[0058] In this embodiment, obtaining the opening change rate of the electronic expansion valve of the air conditioner within a predetermined time period and the exhaust gas temperature change rate of the air conditioner within a predetermined time period includes: obtaining the opening Pn+1 of the electronic expansion valve when the air conditioner operates at t + t1 * n; obtaining the opening Pn of the electronic expansion valve when the air conditioner operates at t + t2 * n; calculating the opening change rate according to the formula Pn+1 / Pn = P0; obtaining the actual exhaust gas temperature Tn+1 of the air conditioner when the air conditioner operates at t + t1 * n; obtaining the set target exhaust gas temperature Tn corresponding to the environmental parameters of the air conditioner when the air conditioner operates at t + t2 * n; calculating the temperature change rate according to the formula Tn+1 / Tn = P0; where t is the operation duration when the air conditioner operates at the initial opening after startup, n is the number of times the air conditioner enters the calibration and correction process, and t1 > t2. By adopting such a method, it is possible to better monitor and adjust the target exhaust gas temperature of the air conditioner in the long term according to the operation stage of the air conditioner, so as to ensure the accuracy of the adjustment of the target exhaust gas temperature, and thus better ensure the operation stability of the air conditioner. Specifically, t1 can be 30 min, and t2 can be 10 min.

[0059] Such as Figure 2As shown, it is the control schematic diagram of the control method in a specific embodiment. When the air conditioner operates normally for t + 30 mins * n after startup, the system detects Pn+1, Pn, Tn+1, and Tn. If Pn+1 / Pn ≤ P and Tn+1 / Tn ≤ T, the air conditioner operates normally according to the set program; if Pn+1 / Pn > P and Tn+1 / Tn > T, here, by detecting the fluctuation amplitude of the electronic expansion valve opening and the temperature change rate of the measured exhaust temperature, it can be preliminarily determined that there is a possibility of being affected by a relatively high indoor humidity, so the next step is to detect △d. Since the electronic expansion valve opening fluctuates greatly and operates frequently during the defrosting process of the air conditioner, and the air conditioning system operates unstably, the detection of △d here is particularly crucial. When the system detects that △d ≤ d, the air conditioner operates normally; if the system detects that △d > d, it can be determined at this time that the abnormal operation of the system is caused by excessive humidity.

[0060] The system calculates the cooling capacity of the air conditioning system by Q supply = Qm * △h, then calculates the required cooling capacity of the air conditioning system by Q demand = C, determines the correction amount for the target exhaust temperature value from the difference △Q, △d, and Tn+1 / Tn between the two, and then the system operates according to the corrected target exhaust value for 10 minutes and then checks the control process parameters again until it operates normally.

[0061] The control method provided in this embodiment aims to solve the problem that when the indoor air humidity is relatively high, the measured exhaust temperature of the compressor is too high, while the target exhaust parameter set by the system for the current environmental parameters is relatively low, resulting in the continuous opening of the electronic expansion valve, unstable system operation, and poor user thermal comfort experience.

[0062] The specific parameter annotations are as follows:

[0063] t: The running duration at the initial opening degree after the air conditioner is turned on. This duration varies with the cooling capacity of the unit and related configurations. After this duration ends, the air conditioner starts to regulate its operation according to the target exhaust temperature corresponding to the outdoor ambient temperature where the air conditioner is located; n represents the number of times the air conditioner enters this control process; Pn+1 is the opening degree of the electronic expansion valve detected by the system when the air conditioner runs for t + 30 mins * n; Pn is the opening degree of the electronic expansion valve detected by the system when the air conditioner runs for t + 10 mins * n; P is the opening degree change rate of the electronic expansion valve set by the system during the process from t + 10 mins * n to t + 30 mins * n; Tn+1 is the measured exhaust temperature detected by the air conditioner when the air conditioner runs for t + 30 mins * n; Tn is the target exhaust temperature set by the system corresponding to the environmental parameters where the air conditioner is located when the air conditioner runs for t + 30 mins * n; T is the allowable exhaust temperature deviation ratio of the air conditioner, and this value varies with the cooling capacity of the unit and related configurations. △d is the difference between the measured indoor environmental humidity value when the air conditioner runs normally for t + 30 mins * n and the indoor environmental humidity value corresponding to the current system-set target exhaust value. D is the allowable indoor air humidity deviation value of the air conditioner, and this value varies with the cooling capacity of the unit and related configurations. Qm is the air flow of the air conditioner; △h is the enthalpy difference corresponding to the air parameters at the inlet and outlet of the evaporator of the air conditioner; C is the cooling capacity required for the maintenance structure, human activities, etc. where the air conditioner is located.

[0064] Specifically, the greater the deviation between the measured exhaust temperature value and the target exhaust temperature value of the air conditioning system, the worse the heat exchange effect of the air conditioner. For household air conditioners, users have relatively high requirements for the comfort of the air conditioner, and the deterioration of the heat exchange effect of the air conditioner will be very obvious to the user's physical sensation. Therefore, for units with relatively small heat exchange capacity, the value of T needs to be smaller; for commercial air conditioners, they are often installed in relatively open public places, and the requirements for the comfort of the air conditioner are not so high. Therefore, for commonly used units with relatively large heat exchange capacity, the value of T can be larger. Specifically, the value of T for household air conditioners can be 3% - 5%, and the value of T for commercial products is generally greater than that of household air conditioners.

[0065] Specifically, the air conditioner can calculate the dew point temperature of the corresponding air through the indoor environmental humidity, indoor environmental dry-bulb temperature, and indoor environmental wet-bulb temperature (this control method can be burned into the software control program of the air conditioner). Calculate the difference between this dew point temperature and the temperature of the inner tube of the evaporator. If this difference △T is larger, it means that the latent heat consumed by the air conditioner is more, the generated condensate is more, which means that the energy consumed by the system is more, and the corresponding target exhaust value needs to be larger. Therefore, the target exhaust value corresponding to △T can be burned into the air conditioner through the software program. For example: 0℃ < △T < 10℃, the corresponding target exhaust value is 1; 10℃ ≤ △T < 20℃, the corresponding target exhaust value is 2, and the target exhaust value 1 > the target exhaust value 2.

[0066] The air flow rate of the air conditioner can be obtained by detecting the air outlet wind speed of the air conditioner and multiplying the wind speed by the outlet area, thus obtaining the air flow rate generated by the air conditioner.

[0067] The larger the d value, the worse the heat exchange effect of the air conditioner. For household air conditioners with relatively high comfort requirements, the d value needs to be smaller; for commercial air conditioners, the d value can be larger.

[0068] The maintenance structure mentioned in this application, that is, the wall material structure of the space where the air conditioner is located, is relatively diverse and can be not considered in this patent. Here, the cooling capacity value is mainly related to human activities: the personnel density (which can be obtained through the infrared detection set on the unit) multiplied by the cooling capacity required per unit density of personnel (this value can vary depending on the geographical location of the air conditioner (for example, this value can be larger in desert areas and smaller in humid and cold areas)). Among them, * represents the multiplication sign.

[0069] Embodiment 2 of the present invention provides a computer-readable storage medium. The computer-readable storage medium includes a stored program. When the program runs, it executes the control method provided above.

[0070] Embodiment 3 of the present invention provides an air conditioner that executes the control method provided above. The air conditioner includes: a calibration and correction module. The calibration and correction module includes an acquisition module, a judgment module, and an adjustment module. The calibration and correction module is set to enter a calibration and correction process for calibrating and correcting the target exhaust temperature of the air conditioner. The acquisition module is set to acquire the opening degree change rate of the electronic expansion valve of the air conditioner within a predetermined time period and the exhaust temperature change rate of the air conditioner within the predetermined time period; the judgment module is set to judge whether the operation of the air conditioner is stable according to the opening degree change rate and the exhaust temperature change rate; the adjustment module is set to determine whether to adjust the target exhaust temperature of the air conditioner in combination with the humidity condition of the indoor environment when the operation of the air conditioner is unstable.

[0071] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: It solves the problems that the difference between the measured exhaust temperature and the target exhaust temperature is too large due to the relatively high indoor environmental humidity, the opening degree of the electronic expansion valve is infinitely opened, and the electronic expansion valve is easily damaged; it solves the problem that the opening degree of the electronic expansion valve is increased, the system operation is unstable, and the user's thermal comfort experience is poor. By detecting parameters such as the opening degree of the electronic expansion valve, the target exhaust temperature and the measured exhaust temperature, and the indoor air humidity, the system misjudgment can be avoided, and at the same time, the target exhaust correction value can be determined; by correcting the target exhaust temperature, the compressor frequency can be decreased to ensure the normal operation of the system and ensure the reliable operation of the air conditioning system.

[0072] It should be noted that the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0073] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0074] In the description of the present application, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0075] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations are made for the spatial relative descriptions used herein.

[0076] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of differentiating the corresponding components. Without further statement, the above terms have no special meanings, and thus should not be construed as limiting the scope of protection of this application.

[0077] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A control method, characterized in that, Including: Entering a calibration and correction process for calibrating and correcting the target exhaust temperature of the air conditioner, where the calibration and correction process includes: Obtaining the opening change rate P0 of the electronic expansion valve of the air conditioner within a predetermined time period and the exhaust temperature change rate T0 of the air conditioner within the predetermined time period; Judging whether the operation of the air conditioner is stable according to the opening change rate P0 and the exhaust temperature change rate T0; When the operation of the air conditioner is unstable, in combination with the humidity condition of the indoor environment where the air conditioner is located, determining whether to adjust the target exhaust temperature of the air conditioner.

2. The control method according to claim 1, characterized in that The judging whether the operation of the air conditioner is stable according to the opening change rate and the exhaust temperature change rate includes: Comparing the opening change rate P0 with a first preset change rate P, and comparing the exhaust temperature change rate T0 with a second preset change rate T; Judging whether the operation of the air conditioner is stable according to the comparison result between the opening change rate P0 and the first preset change rate P and the comparison result between the exhaust temperature change rate T0 and the second preset change rate T0.

3. The control method according to claim 2, wherein The judging whether the operation of the air conditioner is stable according to the comparison result between the opening change rate P0 and the first preset change rate P and the comparison result between the exhaust temperature change rate T0 and the second preset change rate T0 includes: When P0 > P and T0 > T, judging that the operation of the air conditioner is in an unstable condition; When P0 ≤ P or T0 ≤ T, judging that the operation of the air conditioner is in a stable condition and controlling the air conditioner to maintain the current operation state.

4. The control method according to claim 1, wherein The determining whether to adjust the target exhaust temperature of the air conditioner in combination with the humidity condition of the indoor environment where the air conditioner is located includes: Obtaining the difference △d between the actual humidity value of the indoor environment within the predetermined time period and the humidity value of the external environment corresponding to the target exhaust temperature, and determining whether to adjust the target exhaust temperature in combination with the magnitude of the difference △d.

5. The control method according to claim 4, characterized in that, The determining whether to adjust the target exhaust temperature in combination with the magnitude of the difference △d includes: Comparing △d with a preset temperature difference d; When △d > d, determining that it is necessary to adjust the magnitude of the target exhaust temperature; When △d ≤ d, determining that it is not necessary to adjust the magnitude of the target exhaust temperature and controlling the air conditioner to maintain the current operation state.

6. The control method according to claim 5, characterized in that, After determining that it is necessary to adjust the magnitude of the target exhaust temperature, the calibrating and correcting the target exhaust temperature of the air conditioner further includes: Obtain the actual cooling capacity Q of the air conditioner 供 and the cooling capacity Q required by the indoor environment where the air conditioner is located 需 , and determine the difference △Q between the actual cooling capacity Q of the air conditioner 供 and the cooling capacity Q required by the indoor environment where the air conditioner is located 需 ; Determining the correction amount for the target exhaust temperature according to △Q, △d and the exhaust temperature change rate of the air conditioner within the predetermined time period, and adjusting the magnitude of the target exhaust temperature according to the correction amount to enter the correction process.

7. The control method according to claim 1, characterized in that The control method further includes: After a first predetermined time of entering the correction process, entering the calibration and correction process again; and / or, after a second predetermined time of starting the air conditioner, controlling the air conditioner to enter the calibration and correction process.

8. The control method according to claim 1, wherein Obtaining the opening degree change rate of the electronic expansion valve of the air conditioner within a predetermined time period and the exhaust gas temperature change rate of the air conditioner within the predetermined time period includes: Obtaining the opening degree Pn+1 of the electronic expansion valve when the air conditioner operates at t + t1*n; obtaining the opening degree Pn of the electronic expansion valve when the air conditioner operates at t + t2*n; calculating the opening degree change rate according to the formula Pn+1 / Pn = P0; Obtaining the actual exhaust gas temperature Tn+1 of the air conditioner when the air conditioner operates at t + t1*n; obtaining the set target exhaust gas temperature Tn corresponding to the environmental parameters of the air conditioner when the air conditioner operates at t + t2*n; calculating the temperature change rate according to the formula Tn+1 / Tn = P0; Wherein, t is the operation duration after the air conditioner is turned on and operates at the initial opening degree, n is the number of times the air conditioner enters the calibration and correction process, and t1 > t2.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein the program executes the control method according to any one of claims 1 to 8 when running.

10. An air conditioner, characterized in that, Executing the control method according to any one of claims 1 to 8, the air conditioner includes: A calibration and correction module configured to enter a calibration and correction process for calibrating and correcting the target exhaust gas temperature of the air conditioner; the calibration and correction module includes: An acquisition module configured to acquire the opening degree change rate of the electronic expansion valve of the air conditioner within a predetermined time period and the exhaust gas temperature change rate of the air conditioner within the predetermined time period; A judgment module configured to judge whether the operation of the air conditioner is stable according to the opening degree change rate and the exhaust gas temperature change rate; An adjustment module configured to determine whether to adjust the target exhaust gas temperature of the air conditioner in combination with the humidity condition of the indoor environment where the air conditioner is located when the operation of the air conditioner is unstable.

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