Air conditioner control method, air conditioner, and storage medium

Abstract

The present application relates to the technical field of air conditioners, and discloses an air conditioner control method, an air conditioner, and a storage medium. The method comprises: controlling an air conditioner to operate in a defrosting mode; when the air conditioner exits the defrosting mode and operates in a heating mode, controlling the air conditioner to operate in a supplemental heating sub-mode; and when the air conditioner meets a condition for exiting the supplemental heating sub-mode, controlling the air conditioner to operate in a conventional heating sub-mode. The operating frequency and / or heating capacity of the air conditioner in the supplemental heating sub-mode is greater than the operating frequency and / or heating capacity of the air conditioner in the conventional heating sub-mode.

Description

Air conditioner control methods, air conditioners and storage media

[0001] Related applications

[0002] This application claims priority to Chinese Patent Application No. 202411434850.2, filed with the Chinese Patent Office on October 14, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of air conditioning technology, and in particular to control methods for air conditioners, air conditioners, and storage media. Background Technology

[0004] When an air conditioner is heating in low-temperature environments, the outdoor unit is prone to frosting, affecting its performance. During heating, when the outdoor unit meets the defrosting conditions, the air conditioner switches to defrost mode. In defrost mode, the air conditioner either stops indoor heating or maintains indoor heating while using some of the system's heat to defrost the outdoor unit. After defrosting and frost formation, the air conditioner calculates the operating parameters corresponding to the room's heat load according to standard operating conditions. However, this process can lead to a mismatch between the heating capacity provided by the air conditioner and the room's required heat load after multiple defrosting cycles, resulting in large fluctuations in indoor temperature and affecting indoor comfort. Summary of the Invention

[0005] The main objective of this application is to provide a control method for an air conditioner, an air conditioner, and a storage medium, which aim to reduce indoor temperature fluctuations and improve indoor comfort.

[0006] To achieve the above objectives, this application proposes a control method for an air conditioner, the method comprising:

[0007] Control the air conditioner to operate in defrost mode;

[0008] When the air conditioner exits the defrosting mode and starts the heating mode, the air conditioner is controlled to run the supplementary heating sub-mode.

[0009] When the conditions for exiting the supplementary heating sub-mode are met, the air conditioner is controlled to operate in the normal heating sub-mode.

[0010] Wherein, the operating frequency and / or heating capacity of the air conditioner in the supplementary heating sub-mode is greater than the operating frequency and / or heating capacity of the air conditioner in the conventional heating sub-mode.

[0011] In one embodiment, the method further includes:

[0012] Obtain the compensation heating demand of the air conditioner in defrost mode;

[0013] The steps of controlling the air conditioner to operate in the supplementary heating sub-mode include:

[0014] The target heating capacity of the air conditioner is determined based on the compensated heating capacity and the reference heating capacity, wherein the reference heating capacity is the heating capacity corresponding to the heat load of the indoor space regulated by the air conditioner under preset operating conditions;

[0015] The air conditioner is controlled to operate according to the target operating parameters corresponding to the target heating capacity.

[0016] In one embodiment, the target operating parameters include the target frequency of the air conditioner's compressor. Following the step of controlling the air conditioner's operation according to the target operating parameters corresponding to the target heating capacity, the method further includes:

[0017] If the duration of the supplementary heating operation is less than the target supplementary heating duration, obtain the actual operating frequency of the compressor;

[0018] If the actual frequency is less than the target frequency, the target heating duration is updated based on the actual frequency, the reference heating capacity, and the target heating capacity.

[0019] The compressor is controlled to operate at the actual frequency, and the conditions for exiting the heat replenishment sub-mode are determined when the heat replenishment runtime is greater than or equal to the updated target heat replenishment runtime.

[0020] The heating operation duration is the duration during which the air conditioner operates in heating sub-mode.

[0021] In one embodiment, after the step of obtaining the actual operating frequency of the compressor when the reheating operation time is less than the target reheating operation time, the method further includes:

[0022] If the actual frequency is greater than or equal to the target frequency, the compressor is controlled to operate at the target frequency.

[0023] If the duration of the supplementary heating operation is greater than or equal to the target supplementary heating duration, it is determined that the conditions for exiting the supplementary heating sub-mode are met; if the duration of the supplementary heating operation is less than the target supplementary heating duration, the process returns to the step of obtaining the actual operating frequency of the compressor.

[0024] In one embodiment, the step of updating the target heating duration based on the actual frequency, the reference heating capacity, and the target heating capacity includes:

[0025] Adjust the rated heating capacity according to the relationship between the actual frequency and the maximum frequency to obtain the reference heating capacity;

[0026] Determine the heat deviation value between the reference heat capacity and the baseline heat capacity;

[0027] The updated target reheating time is determined based on the ratio of the target heating capacity to the heat deviation value.

[0028] In one embodiment, the compensated heating capacity is the total heating capacity required to compensate for the defrosting mode, and the step of determining the target heating capacity of the air conditioner based on the compensated heating capacity and the baseline heating capacity includes:

[0029] The sub-compensation heat capacity of the air conditioner per unit time is determined based on the compensated heating capacity and the target supplementary heating duration;

[0030] The target heating value of the air conditioner per unit time is determined by summing the supplementary heating capacity with the baseline heating capacity per unit time when the air conditioner is operating in heating mode.

[0031] In one embodiment, the step of obtaining the compensatory heating capacity required by the air conditioner in defrost mode includes:

[0032] Obtain the ambient temperature and defrosting duration of the environment where the air conditioner is located in the defrosting mode;

[0033] The compensation heating capacity is determined based on the ambient temperature and the defrosting time.

[0034] In one embodiment, the ambient temperature includes indoor ambient temperature and outdoor ambient temperature, and the step of determining the compensating heating capacity based on the ambient temperature and the defrosting time includes:

[0035] The compensated heating capacity is determined based on the preset heat compensation coefficient, the defrosting time, and the temperature difference between the indoor and outdoor ambient temperatures.

[0036] In one embodiment, before the step of determining the compensated heating capacity based on the preset heat compensation coefficient, the defrosting time, and the temperature difference between the indoor and outdoor ambient temperatures, the method further includes:

[0037] The preset heat replenishment coefficient is determined based on the outdoor ambient temperature, and the preset heat replenishment coefficient is negatively correlated with the outdoor ambient temperature.

[0038] In one embodiment, the step of obtaining the compensatory heating capacity required by the air conditioner in defrost mode includes:

[0039] The first heating capacity of the air conditioner in the defrosting mode and the second heating capacity required by the air conditioner are obtained. The second heating capacity is the heating capacity corresponding to the heat load of the indoor space under preset operating conditions.

[0040] The compensation heating capacity is determined based on the deviation between the second heating capacity and the first heating capacity.

[0041] In one embodiment, the step of obtaining the first heating capacity of the air conditioner in the defrosting mode includes:

[0042] The air inlet temperature, air outlet temperature, and air volume of the air conditioner are obtained in the defrosting mode.

[0043] The first heating capacity is determined based on the inlet air temperature, the outlet air temperature, and the air volume.

[0044] In one embodiment, the target operating parameters include at least one of the following:

[0045] The target frequency of the air conditioner's compressor;

[0046] The indoor target speed of the outdoor fan of the air conditioner;

[0047] The target outdoor speed of the indoor fan of the air conditioner;

[0048] The target opening degree of the throttling device of the air conditioner.

[0049] In one embodiment, the target heating capacity is greater than the reference heating capacity, and the target ratio is defined as the ratio of the target heating capacity to the reference heating capacity. The target ratio is positively correlated with the ambient temperature of the environment where the air conditioner is located.

[0050] In one embodiment, the target operating parameters include the target frequency of the air conditioner's compressor, the target frequency being greater than the reference frequency corresponding to the reference heating capacity, and the ratio of the target frequency to the reference frequency being positively correlated with the ambient temperature; and / or,

[0051] The target operating parameters include the target indoor fan speed of the air conditioner, which is greater than the indoor reference speed of the indoor fan corresponding to the reference heating capacity, and the ratio of the target indoor speed to the indoor reference speed is positively correlated with the ambient temperature; and / or,

[0052] The target operating parameters include the target outdoor speed of the outdoor fan of the air conditioner, which is greater than the outdoor reference speed of the outdoor fan corresponding to the reference heating capacity, and the ratio of the target outdoor speed to the outdoor reference speed is positively correlated with the ambient temperature; and / or,

[0053] The target operating parameters include the target opening degree of the throttling device of the air conditioner, the target opening degree being greater than the reference opening degree of the throttling device corresponding to the reference heating capacity, and the ratio of the target opening degree to the reference opening degree being positively correlated with the ambient temperature.

[0054] In one embodiment, the condition for exiting the heat replenishment sub-mode includes at least one of the following:

[0055] The supplementary heating runtime is greater than or equal to the target supplementary heating runtime; wherein, the supplementary heating runtime is the duration during which the air conditioner operates in supplementary heating sub-mode;

[0056] The current indoor temperature of the room regulated by the air conditioner is lower than the preset temperature.

[0057] In addition, to achieve the above objectives, this application also proposes an air conditioner, the air conditioner comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the control method for the air conditioner as described above.

[0058] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the air conditioner control method described above.

[0059] One or more technical solutions proposed in this application have at least the following technical effects: In the heating phase after the defrosting of the air conditioner, the air conditioner first runs a supplementary heating sub-mode and then resumes normal heating operation. When the defrosting just ends, the heating capacity and / or operating frequency of the air conditioner are no longer the reference heating capacity and / or reference frequency that should be present under the preset operating conditions of the air conditioner in the normal heating sub-mode, but are greater than the reference heating capacity and / or reference frequency. Based on this, the actual heating capacity of the air conditioner in the supplementary heating sub-mode can compensate for the heat lost by the air conditioner during the defrosting process, thereby ensuring that the heating capacity of the air conditioner is accurately matched with the actual heat load of the indoor space regulated by the air conditioner, reducing the frequent adjustment of the air conditioner caused by the mismatch between load and capacity, effectively reducing indoor ambient temperature fluctuations, and effectively improving indoor comfort. Attached Figure Description

[0060] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0061] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0062] Figure 1 is a schematic diagram of the refrigerant circulation system in one embodiment of the air conditioner in this application;

[0063] Figure 2 is a schematic diagram of the hardware operating environment involved in the control method of the air conditioner in this application embodiment;

[0064] Figure 3 is a flowchart illustrating the control method for the air conditioner provided in Embodiment 1 of this application.

[0065] Figure 4 is a flowchart illustrating the control method for the air conditioner provided in Embodiment 2 of this application.

[0066] Figure 5 is a flowchart illustrating the control method of the air conditioner provided in Embodiment 3 of this application.

[0067] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0068] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0069] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0070] The main solution of this application embodiment is: controlling the air conditioner to operate in defrost mode; when the air conditioner exits the defrost mode and operates in heating mode, controlling the air conditioner to operate in supplementary heating sub-mode; when the air conditioner meets the conditions for exiting supplementary heating sub-mode, controlling the air conditioner to operate in conventional heating sub-mode; wherein, the operating frequency and / or heating capacity of the air conditioner in the supplementary heating sub-mode is greater than the operating frequency and / or heating capacity of the air conditioner in the conventional heating sub-mode.

[0071] In this embodiment, for ease of description, the following description will focus on identifying the air conditioner as the execution subject.

[0072] In current technology, after defrosting, air conditioners calculate the operating parameters corresponding to the room's heat load according to standard operating conditions. However, this method can lead to a mismatch between the heating capacity provided by the air conditioner and the room's required heat load after multiple defrosting cycles, resulting in large fluctuations in indoor temperature and affecting indoor comfort.

[0073] This application provides the above-mentioned solution: during the heating phase after the air conditioner finishes defrosting, the air conditioner first runs a supplementary heating sub-mode before resuming normal heating operation. When the air conditioner just finishes defrosting, the heating capacity and / or operating frequency are no longer the reference heating capacity and / or reference frequency that should be present under the current indoor heat load in the preset operating conditions of the air conditioner in the normal heating sub-mode, but are greater than the reference heating capacity and / or reference frequency. Based on this, the actual heating capacity of the air conditioner in the supplementary heating sub-mode can compensate for the heat lost by the air conditioner during the defrosting process, thereby ensuring that the heating capacity of the air conditioner is accurately matched with the actual heat load of the indoor space regulated by the air conditioner, reducing the frequent adjustments of the air conditioner caused by the mismatch between load and capacity, effectively reducing indoor ambient temperature fluctuations, and achieving an effective improvement in indoor comfort.

[0074] This application provides an air conditioner. The air conditioner may include any type of air conditioner such as a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, a ceiling-mounted air conditioner, or a multi-split air conditioner.

[0075] In one embodiment, referring to FIG1, the air conditioner may include a refrigerant circulation system, which includes a compressor 1, a reversing assembly 2, and an indoor heat exchanger 3, a throttling device 4, and an outdoor heat exchanger 5 connected in sequence. The exhaust port of the compressor 1, the return port of the compressor 1, the indoor heat exchanger 3, and the outdoor heat exchanger 5 are all connected to the reversing assembly 2. An indoor fan 7 is correspondingly provided for the indoor heat exchanger 3, and an outdoor fan 8 is correspondingly provided for the outdoor heat exchanger 5.

[0076] The reversing assembly 2 (e.g., a four-way valve) has a first operating state and a second operating state. When the reversing assembly 2 is operating in the first operating state, the exhaust port of the compressor 1 is connected to the outdoor heat exchanger 5, and the return port of the compressor 1 is connected to the indoor heat exchanger 3. The refrigerant discharged by the compressor 1 flows sequentially through the outdoor heat exchanger 5, the throttling device 4, and the outdoor heat exchanger 5 before returning to the compressor 1. When the reversing assembly 2 is operating in the second operating state, the exhaust port of the compressor 1 is connected to the indoor heat exchanger 3, and the return port of the compressor 1 is connected to the outdoor heat exchanger 5. The refrigerant discharged by the compressor 1 flows sequentially through the indoor heat exchanger 3, the throttling device 4, and the outdoor heat exchanger 5 before returning to the compressor 1.

[0077] Based on the cooperation of the commutation component 2 and the throttling device 4, the air conditioner includes at least the following operating modes:

[0078] In the first mode, such as the heating mode, the reversing component 2 operates in the first operating state, the throttling device 4 operates at the throttling opening, the indoor heat exchanger 3 is in the condensing state, the outdoor heat exchanger 5 is in the evaporating state, and the indoor heat exchanger 3 can release heat to increase the temperature of the indoor space.

[0079] In the second mode, such as cooling mode or dehumidification mode, the reversing component 2 operates in the second operating state, the throttling device 4 operates at the throttling opening, the indoor heat exchanger 3 is in the evaporation state, and the outdoor heat exchanger 5 is in the condensation state. The indoor heat exchanger 3 can release cold energy to reduce the temperature of the indoor space or can cause moisture in the air to condense on the surface of the indoor heat exchanger 3 to reduce the humidity of the indoor air.

[0080] In the first defrosting mode, the reversing component 2 operates in the first operating state, the throttling device 4 operates at an opening greater than the above-mentioned throttling opening, and both the indoor heat exchanger 3 and the outdoor heat exchanger 5 are in a heat release state. The outdoor heat exchanger 5 can release heat to melt the frost on the outdoor unit.

[0081] In the second defrosting mode, the reversing component 2 operates in the second operating state, the throttling device 4 operates at the defrosting opening, the indoor heat exchanger 3 is in the evaporation state, and the outdoor heat exchanger 5 is in the condensation state. The outdoor heat exchanger 5 can release heat to melt the frost on the outdoor unit.

[0082] Referring to Figure 2, the air conditioner also includes an environmental detection module 6 to detect environmental state parameters of the environment in which the air conditioner is located (e.g., at least one of ambient temperature, ambient humidity, and ambient enthalpy). The environmental detection module 6 may include an indoor detection module and / or an outdoor detection module.

[0083] Referring to Figure 2, the air conditioner also includes a control device 100, and the compressor 1, reversing assembly 2, indoor fan 7, outdoor fan 8, throttling device 4, and environmental detection module 6 mentioned above are all connected to the control device 100.

[0084] The control device 100 includes: at least one processor 1001; and a memory 1002 communicatively connected to the at least one processor 1001, and a timer 1003, etc.; wherein the memory 1002 stores instructions that can be executed by the at least one processor 1001, the instructions being executed by the at least one processor 1001 to enable the at least one processor 1001 to perform the air conditioner control method in the following embodiment.

[0085] Referring now to FIG2, a schematic diagram of a control device 100 suitable for implementing embodiments of this application is shown. The air conditioner in this application embodiment may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. The control device 100 shown in FIG2 is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0086] As shown in Figure 2, the control device 100 may include a processor 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in memory 1002. The program in memory 1002 may be a program in read-only memory (ROM) or a program loaded from a storage device into random access memory (RAM). The RAM also stores various programs and data required for the operation of the control device 100. The processor 1001 and memory 1002 (ROM and RAM) are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus. Typically, the following systems can be connected to the I / O interface: input devices including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices including, for example, magnetic tapes, hard disks, etc.; and communication devices. The communication device allows the control device 100 to communicate wirelessly or wiredly with other devices to exchange data. Although the figure shows a control device 100 with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented or have alternatively.

[0087] Specifically, according to the embodiments disclosed in this application, the method flow described in the following embodiments can be implemented as a computer software program. For example, the embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication device, or installed from memory 1002. When the computer program is executed by processor 1001, it performs the functions defined in the control method of the air conditioner of the embodiments disclosed in this application.

[0088] The air conditioner provided in this application, employing the control method of the air conditioner in the following embodiments, can solve the technical problem of how to reduce indoor temperature fluctuations and improve indoor comfort. Compared with the prior art, the beneficial effects of the air conditioner provided in this application are the same as those of the control method of the air conditioner provided in the following embodiments, and other technical features of this air conditioner are the same as those disclosed in the method of the following embodiments, and will not be repeated here.

[0089] The executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or an electronic device or air conditioner capable of performing the above functions. The following description uses an air conditioner as an example to illustrate this embodiment and the subsequent embodiments.

[0090] Based on this, the present application provides a control method for an air conditioner. Referring to FIG3, FIG3 is a flowchart of the first embodiment of the control method for an air conditioner of the present application.

[0091] In this embodiment, the control method of the air conditioner includes steps S10 to S30:

[0092] Step S10: Control the air conditioner to operate in defrost mode;

[0093] The defrost modes include the first defrost mode or the second defrost mode mentioned above.

[0094] Step S20: When the air conditioner exits the defrosting mode and starts the heating mode, control the air conditioner to run the supplementary heating sub-mode.

[0095] The heating modes include supplementary heating mode and conventional heating mode.

[0096] In the supplementary heating sub-mode, the operating parameters of the air conditioner can be preset fixed parameters (such as maximum heating capacity and / or maximum frequency), or parameters determined according to the actual operating conditions of the air conditioner, such as those determined according to the status parameters of the air conditioner in the defrosting mode.

[0097] Step S30: When the air conditioner meets the conditions for exiting the supplementary heating sub-mode, control the air conditioner to operate in the normal heating sub-mode.

[0098] Wherein, the operating frequency and / or heating capacity of the air conditioner in the supplementary heating sub-mode is greater than the operating frequency and / or heating capacity of the air conditioner in the conventional heating sub-mode.

[0099] In one embodiment, the conditions for exiting the supplementary heating sub-mode include at least one of the following: the supplementary heating runtime is greater than or equal to the target supplementary heating duration; wherein, the supplementary heating runtime is the duration for which the air conditioner operates in the supplementary heating sub-mode; and the current indoor temperature of the indoor space regulated by the air conditioner is less than a preset temperature. The target supplementary heating duration is the total duration of the supplementary heating phase in the heating mode after the defrosting mode ends. The target supplementary heating duration can be a preset fixed duration, or it can be a duration determined according to the actual operating conditions of the air conditioner, for example, it can be determined according to the outdoor ambient temperature and the temperature change of the outdoor heat exchanger before and after the air conditioner operates in defrosting mode.

[0100] In the conventional heating mode, based on the preset relationship between the state parameters of the indoor space's heat load and the heating capacity, the reference heating capacity can be determined according to the current state parameters of the heat load. Based on the correspondence between the heating capacity and operating parameters (such as at least one of compressor frequency, indoor fan speed, outdoor fan speed, and throttling device opening), the operating parameters corresponding to the reference heating capacity are determined to control the operation of the air conditioner.

[0101] This embodiment provides a control method for an air conditioner. In this scheme, during the heating phase after the air conditioner finishes defrosting, the air conditioner first runs a supplementary heating sub-mode before resuming normal heating operation. When the air conditioner just finishes defrosting, the heating capacity and / or operating frequency are no longer the reference heating capacity and / or reference frequency that should be present under the preset operating conditions of the air conditioner in the normal heating sub-mode, but are greater than the reference heating capacity and / or reference frequency. Based on this, the actual heating capacity of the air conditioner in the supplementary heating sub-mode can compensate for the heat lost by the air conditioner during the defrosting process, thereby ensuring that the heating capacity of the air conditioner is accurately matched with the actual heat load of the indoor space regulated by the air conditioner, reducing the frequent adjustments of the air conditioner caused by the mismatch between load and capacity, effectively reducing indoor ambient temperature fluctuations, and effectively improving indoor comfort.

[0102] Based on any of the above embodiments, in the second embodiment of this application, the same or similar content as the above embodiments can be referred to the above description, and will not be repeated hereafter. Furthermore, referring to Figure 4, the method further includes step S01:

[0103] Step S01: Obtain the compensation heating required by the air conditioner in defrosting mode;

[0104] Compensated heating capacity can be understood as the amount of heat lost during the defrosting mode of an air conditioner compared to its heating mode. Compensated heating capacity is the deviation between the baseline heating capacity and the actual heating capacity in defrosting mode.

[0105] Compensation heating capacity can be determined based on the air conditioner's own status parameters and / or the environmental parameters of the environment in which the air conditioner is located during defrost mode. This compensation heating capacity can be calculated by substituting the air conditioner's status parameters and / or environmental parameters into a preset formula. Alternatively, the actual heating capacity of the air conditioner in defrost mode can be determined using the air conditioner's status parameters and / or environmental parameters. A baseline heating capacity can be determined using status parameters representing the indoor heat load, and the compensation heating capacity can be determined based on the deviation between the baseline heating capacity and the actual heating capacity. Alternatively, the compensation heating capacity can be determined based on the type of defrost mode in which the air conditioner is operating; different defrost modes correspond to different compensation heating capacities.

[0106] In one embodiment, the compensated heating capacity is the total amount of heating capacity that the air conditioner needs to compensate in defrost mode. In other embodiments, the compensated heating capacity is also the amount of heating capacity that the air conditioner needs to compensate per unit time in defrost mode.

[0107] In one embodiment, the air conditioner is controlled to operate in heating mode. If the running time of heating mode exceeds a preset duration, it can be determined whether the air conditioner meets the start conditions for defrosting mode. If the start conditions for defrosting mode are met, the air conditioner is controlled to operate in defrosting mode. When the defrosting mode reaches the exit conditions, the compensation heating capacity required by the air conditioner in defrosting mode can be obtained. In other embodiments, obtaining the compensation heating capacity can also be performed during the operation of heating mode after the air conditioner has finished defrosting mode.

[0108] Based on step S01, the step of controlling the air conditioner to operate in the supplementary heating sub-mode includes steps S21 to S22:

[0109] Step S21: Determine the target heating capacity of the air conditioner based on the compensated heating capacity and the reference heating capacity. The reference heating capacity is the heating capacity corresponding to the heat load of the indoor space regulated by the air conditioner under preset operating conditions.

[0110] The preset operating condition is a pre-set heating condition (the condition when the air conditioner exits the defrost mode and runs in heating mode). A preset relationship is established between the state parameters representing the heat load of the indoor space and the heating capacity under this heating condition. Based on this preset relationship, the corresponding heating capacity can be determined as the baseline heating capacity by the state parameters representing the heat load of the indoor space. In this embodiment, the room heat load under the heating condition is calculated based on the method specified in GB 21455, and the heating capacity corresponding to the room heat load is determined as the baseline heating capacity.

[0111] The target heating capacity can be the target value of the total heating capacity of the air conditioner in heating mode, or it can be the target value of the heating capacity of the air conditioner per unit time (e.g., per second or per minute) in heating mode.

[0112] In one embodiment, a target heating capacity can be obtained by increasing the baseline heating capacity based on the compensated heating capacity. The target heating capacity is greater than the baseline heating capacity, and a target ratio is defined as the ratio of the target heating capacity to the baseline heating capacity. This target ratio is positively correlated with the ambient temperature of the environment where the air conditioner is located. The ambient temperature may include indoor ambient temperature and / or outdoor ambient temperature. In this embodiment, the target ratio is positively correlated with the outdoor ambient temperature; that is, the lower the outdoor ambient temperature, the lower the target ratio, and the higher the outdoor ambient temperature, the higher the target ratio.

[0113] Step S22: Control the air conditioner to operate according to the target operating parameters corresponding to the target heating capacity. The target operating parameters may include target parameters for one or more components in the air conditioner related to heating capacity. When there are more than one target operating parameter, these parameters are not independent parameters, but rather parameters that coordinate to achieve the total heating capacity of the air conditioner reaching the target heating capacity.

[0114] The functional relationship between the air conditioner's operating parameters and heating capacity is preset, and the target operating parameters corresponding to the target heating capacity can be determined based on this functional relationship.

[0115] The target operating parameters may include at least one of the following: the target frequency of the air conditioner's compressor; the indoor target speed of the air conditioner's outdoor fan; the outdoor target speed of the air conditioner's indoor fan; and the target opening degree of the air conditioner's throttling device.

[0116] In one embodiment, the air conditioner can be controlled to operate at the target operating parameters for the target reheating duration, and then resume normal heating parameter operation. In other implementations, the air conditioner can also operate at the target operating parameters for the entire heating mode operation period after the current defrosting mode ends and before the next defrosting mode begins.

[0117] In one embodiment, the air conditioner operates with the target operating parameters when it ends the defrosting mode and starts the heating mode. In other implementations, the air conditioner may also operate with the target operating parameters when it ends the defrosting mode and starts the heating mode until a preset condition is met (e.g., the temperature difference between the set temperature and the indoor ambient temperature is greater than a preset temperature difference).

[0118] In one embodiment, the target operating parameters include the target frequency of the air conditioner's compressor, which is greater than the reference frequency corresponding to the reference heating capacity. The ratio of the target frequency to the reference frequency is positively correlated with the ambient temperature. For example, the relationship between the ratio of the target frequency to the reference frequency and the outdoor ambient temperature is shown in Table 1 below:

[0119] Table 1

[0120] In one embodiment, the target operating parameters include the indoor target speed of the indoor fan of the air conditioner, which is greater than the indoor reference speed of the indoor fan corresponding to the reference heating capacity. The ratio of the indoor target speed to the indoor reference speed is positively correlated with the ambient temperature. The relationship between the ratio of the indoor target speed to the indoor reference speed and the ambient temperature can be compared analogously to the relationship between the ratio of the target frequency to the reference frequency and the ambient temperature, and will not be elaborated further here.

[0121] In one embodiment, the target operating parameters include the target outdoor speed of the outdoor fan of the air conditioner, which is greater than the reference outdoor speed of the outdoor fan corresponding to the reference heating capacity. The ratio of the target outdoor speed to the reference outdoor speed is positively correlated with the ambient temperature. The relationship between the ratio of the target outdoor speed to the reference outdoor speed and the ambient temperature can be compared analogously to the relationship between the ratio of the target frequency to the reference frequency and the ambient temperature, and will not be elaborated further here.

[0122] In one embodiment, the target operating parameters include the target opening degree of the throttling device of the air conditioner, the target opening degree being greater than the reference opening degree of the throttling device corresponding to the reference heating capacity, and the ratio of the target opening degree to the reference opening degree being positively correlated with the ambient temperature. The relationship between the ratio of the target opening degree to the reference opening degree and the ambient temperature can be compared analogously to the relationship between the ratio of the target frequency to the reference frequency and the ambient temperature, and will not be elaborated here.

[0123] In the process of controlling the operation of relevant components in an air conditioner according to target operating parameters, the relevant components can operate according to the target operating parameters, or, according to a preset protection strategy, reference operating parameters for the relevant components can be determined, and the corresponding component can be controlled to operate by selecting one of the reference operating parameters and the target operating parameters based on protection conditions. For example, the target operating parameters may include the target frequency of the compressor. The upper limit frequency allowed for reliable operation of the compressor can be determined according to the preset protection strategy. When the target frequency is greater than the upper limit frequency, the compressor operates at the upper limit frequency; when the target frequency is less than or equal to the upper limit frequency, the compressor operates at the target frequency.

[0124] In one embodiment, the target heating capacity in the supplementary heating mode is combined with the compensation heating capacity required in the defrosting mode to compensate for the reference heating capacity. Based on this, when the air conditioner operates with the target operating parameters corresponding to the target heating capacity, the actual heating capacity of the air conditioner can compensate for the heat lost by the air conditioner during the defrosting process. This ensures that the heating capacity of the air conditioner is accurately matched with the actual heat load of the indoor space regulated by the air conditioner, reduces the frequent adjustments of the air conditioner caused by the mismatch between load and capacity, effectively reduces indoor temperature fluctuations, and effectively improves indoor comfort.

[0125] In one feasible implementation, the step of obtaining the compensation heating capacity required by the air conditioner in defrost mode includes: obtaining the ambient temperature and defrost duration of the environment where the air conditioner is located in the defrost mode; and determining the compensation heating capacity based on the ambient temperature and the defrost duration.

[0126] Ambient temperature may include indoor ambient temperature and / or outdoor ambient temperature. Defrosting time is the total duration for which the air conditioner operates in defrosting mode.

[0127] A pre-established correspondence between ambient temperature, defrosting time, and compensating heating capacity is created. This correspondence can include calculation formulas, mapping relationships, etc. Based on this correspondence, the compensating heating capacity corresponding to the current ambient temperature and defrosting time can be determined. This correspondence can be a pre-set fixed relationship or determined according to the actual operating conditions of the air conditioner. In one embodiment, the correspondence between ambient temperature, defrosting time, and compensating heating capacity is obtained based on the outdoor ambient temperature. Different outdoor ambient temperatures correspond to different correspondences. The compensating heating capacity corresponding to the ambient temperature and defrosting time is negatively correlated with the outdoor ambient temperature; that is, the higher the outdoor ambient temperature, the lower the compensating heating capacity corresponding to the ambient temperature and defrosting time.

[0128] In one embodiment, the ambient temperature includes both indoor and outdoor ambient temperatures. The compensated heating capacity can then be determined based on the indoor and outdoor ambient temperatures and the defrosting time. The compensated heating capacity is determined according to a preset compensated heating coefficient, the defrosting time, and the temperature difference between the indoor and outdoor ambient temperatures. The preset compensated heating coefficient represents the relationship between the total heating capacity of the air conditioner in defrosting mode, the temperature difference between indoor and outdoor temperatures, and the defrosting time. Based on the relationship between the compensated heating capacity, the total heating capacity in defrosting mode, and the total base heating capacity in defrosting mode, a quantitative relationship between the preset compensated heating coefficient, the defrosting time, the temperature difference between indoor and outdoor temperatures, and the compensated heating capacity can be established in advance. Based on this quantitative relationship, the compensated heating capacity can be calculated using the preset compensated heating coefficient, the defrosting time, and the temperature difference.

[0129] The preset heat compensation coefficient can be a pre-set fixed parameter value or a value determined based on the actual operating conditions of the air conditioner. In one embodiment, to improve the accuracy of the determined compensation heat capacity, the preset heat compensation coefficient can be determined based on the outdoor ambient temperature, and the preset heat compensation coefficient is negatively correlated with the outdoor ambient temperature. In one implementation, the preset heat compensation coefficient can be determined based on the temperature range of the outdoor ambient temperature. In another implementation, the preset heat compensation coefficient can be calculated by substituting the outdoor ambient temperature into a preset formula. To more intuitively understand the relationship between the outdoor ambient temperature and the preset heat compensation coefficient, the following explanation is provided in conjunction with Table 2:

[0130] Table 2

[0131] Based on the relationships shown in Table 2, for example, when the outdoor ambient temperature is -10℃, the preset heat replenishment coefficient is 311; and when the outdoor ambient temperature is 3℃, the preset heat replenishment coefficient is 291.

[0132] In one embodiment, determining the compensation heating capacity by combining the ambient temperature and defrosting duration in defrosting mode can accurately reflect the heat loss in defrosting mode compared to normal heating operation. This facilitates precise heat compensation after defrosting, effectively improving the accuracy of the match between the air conditioner's heating capacity and the actual heat load demand, further reducing indoor temperature fluctuations during heating, and achieving further improvements in indoor comfort. Specifically, determining the compensation heating capacity by combining a preset compensation heating coefficient, defrosting duration, and indoor-outdoor temperature difference, with the preset compensation heating coefficient adapted to the outdoor ambient temperature, helps improve the accuracy and efficiency of determining the compensation heating capacity, further enhancing indoor comfort.

[0133] In other embodiments, the preset heat compensation coefficient may also be a pre-set fixed value.

[0134] In other embodiments, the compensation heating capacity can also be determined based on the defrosting time, the temperature difference between the indoor ambient temperature and the set temperature, and the outdoor ambient temperature.

[0135] In another feasible implementation, the step of obtaining the compensation heating capacity required by the air conditioner in the defrost mode includes: obtaining the first heating capacity of the air conditioner and the second heating capacity required by the air conditioner in the defrost mode, wherein the second heating capacity is the heating capacity corresponding to the heat load of the indoor space under preset operating conditions; and determining the compensation heating capacity based on the deviation value between the second heating capacity and the first heating capacity.

[0136] The first heating capacity can be determined based on the air conditioner's own operating status parameters and / or the environmental status parameters of the environment where the air conditioner is located in defrost mode. The first heating capacity is the total heating capacity of the air conditioner in defrost mode. In one embodiment, the air inlet temperature, air outlet temperature, and air volume of the air conditioner in defrost mode are obtained; the first heating capacity is determined based on the air inlet temperature, air outlet temperature, and air volume. The air volume is the total amount of air exchanged with the indoor heat exchanger under the drive of the indoor fan. The air volume can be determined based on the rotational speed of the indoor fan. The first heating capacity can be determined based on the temperature difference between the air inlet temperature and the air outlet temperature, and the air volume.

[0137] The second heating capacity can be determined based on the state parameters representing the heat load of the indoor space in defrost mode. The method for determining the second heating capacity is analogous to the aforementioned baseline heating capacity and will not be elaborated upon here. The second heating capacity is the total heating demand of the air conditioner in defrost mode.

[0138] In one embodiment, the deviation between the second heating capacity and the first heating capacity is determined as the compensation heating capacity. In other implementations, the compensation heating capacity can also be obtained by correcting the deviation value using a correction coefficient. The correction coefficient can be a pre-set fixed parameter or determined based on the actual operating conditions of the air conditioner. For example, the correction coefficient can be determined based on the change in indoor temperature during defrost mode and the temperature difference between the indoor temperature and the set temperature at the end of defrost mode.

[0139] In one embodiment, the above method helps to obtain the compensated heating capacity more accurately, thereby further improving the comfort of indoor heating.

[0140] In other embodiments, when the indoor fan is running at a set speed, the first heating capacity can be determined by the inlet air temperature and the outlet air temperature, or the first heating capacity can be determined based on the temperature status parameters of the indoor heat exchanger.

[0141] Based on any of the above embodiments, in the third embodiment of this application, the same or similar content as the above embodiments can be referred to the above description, and will not be repeated hereafter. In addition, the target operating parameters include the target frequency of the air conditioner's compressor. Referring to Figure 5, after step S22, the following is also included:

[0142] Step S23: Determine whether the heating operation time is less than the target heating operation time;

[0143] Wherein, the heating operation time is the duration during which the air conditioner operates in the heating sub-mode;

[0144] If the heating operation time is longer than the target heating operation time, proceed to step S30; if the heating operation time is shorter than or equal to the target heating operation time, proceed to step S24.

[0145] Step S24: Obtain the actual operating frequency of the compressor;

[0146] After the air conditioner obtains the target frequency, it will send the target frequency to the control device connected to the compressor. The control device can determine the current upper limit frequency of the compressor according to the preset protection strategy. When the upper limit frequency is less than the target frequency, the control device controls the compressor to run at the upper limit frequency, and the upper limit frequency is the actual frequency. When the upper limit frequency is greater than or equal to the target frequency, the control device controls the compressor to run at the target frequency, and the target frequency is the actual frequency.

[0147] Step S25: If the actual frequency is less than the target frequency, update the target heating duration according to the actual frequency, the reference heating capacity, and the target heating capacity.

[0148] The updated target heat-up duration is longer than the original target heat-up duration.

[0149] The duration adjustment value is determined based on the actual frequency, baseline heating capacity, and target heating capacity. The current target supplementary heating duration is then adjusted according to this adjustment value to obtain the updated target supplementary heating duration. Alternatively, a quantitative relationship between the actual frequency, baseline heating capacity, target heating capacity, and the updated target supplementary heating duration can be established in advance, and the updated target supplementary heating duration can be calculated based on this relationship.

[0150] In one implementation of this embodiment, the rated heating capacity is adjusted based on the relationship between the actual frequency and the maximum frequency to obtain a reference heating capacity; the heat deviation value between the reference heating capacity and the baseline heating capacity is determined; and the updated target reheating duration is determined based on the ratio of the target heating capacity to the heat deviation value. Here, the maximum frequency is the maximum allowable operating frequency of the compressor. The rated heating capacity is the nominal heating capacity of the compressor operating at its maximum frequency under preset conditions.

[0151] In another implementation of this embodiment, the updated reheating time Tx is calculated by substituting the actual frequency Fr, the reference heating capacity Lh, and the target heating capacity Qx into the following formula: Tx=Qx*Fmax / (Fmax*Qmax-Lh*Fmax), where Fmax is the maximum frequency and Qmax is the rated heating capacity.

[0152] Step S26: Control the compressor to operate at the actual frequency, and determine that the conditions for exiting the heat replenishment sub-mode are met if the heat replenishment runtime is greater than or equal to the updated target heat replenishment runtime.

[0153] In the process of controlling the compressor to run at the actual frequency, if the reheating operation time is less than the updated target reheating time, the process can return to step S24, or it can continue to run at the actual frequency.

[0154] After step S24, if the actual frequency is greater than or equal to the target frequency, control the compressor to run at the target frequency; if the heating runtime is greater than or equal to the target heating runtime, determine that the conditions for exiting the heating sub-mode are met; if the heating runtime is less than the target heating runtime, return to the step of obtaining the actual frequency of the compressor operation.

[0155] In one embodiment, when the supplementary heating runtime is greater than or equal to the target supplementary heating runtime, it indicates that the air conditioner's supplementary heating has been completed. At this time, it operates in the normal heating sub-mode, and the air conditioner is controlled according to the operating parameters corresponding to the heating capacity corresponding to the heat load, which helps to avoid excessive heating. When the supplementary heating runtime is less than the target supplementary heating runtime, if the actual frequency of the compressor is lower than the target frequency, it indicates that the actual heating capacity of the air conditioner is less than the required heating capacity. At this time, the target supplementary heating runtime is updated by combining the actual frequency, the reference heating capacity, and the target heating capacity, and the air conditioner is controlled to supplement heating with the updated target supplementary heating runtime and the current actual frequency, which helps to ensure that the total amount of heating supplemented in the supplementary heating stage is accurately matched with the compensation heating capacity required by the defrosting mode. When the supplementary heating runtime is greater than or equal to the target supplementary heating runtime, if the actual frequency of the compressor in the stage reaches the target frequency, it indicates that the heating capacity of the air conditioner in the supplementary heating stage is sufficient to compensate for the heating capacity lost in the defrosting mode. The compressor maintains the target frequency and the air conditioner is controlled to supplement heating based on the original target supplementary heating runtime, which helps to ensure the accuracy of the supplementary heating control. In particular, updating the target supplementary heating duration by combining actual frequency, baseline heating capacity, and target heating capacity helps ensure that the supplementary heating capacity matches the compensation heating capacity required by the defrosting mode during the supplementary heating phase. Therefore, using different supplementary heating control methods based on different situations helps to effectively improve the accuracy of matching the supplementary heating capacity during the supplementary heating phase with the compensation heating capacity required by the defrosting mode, thereby further enhancing indoor comfort.

[0156] In other embodiments, if the actual frequency is less than the target frequency, the target heating duration may be kept constant, and the current operating speed of the indoor or outdoor fan may be increased according to the actual frequency, the reference heating capacity, and the target heating capacity.

[0157] In other embodiments, if the actual frequency is greater than the target frequency, the target reheating duration can be updated based on the actual frequency, the reference heating capacity, and the target heating capacity. The compressor can also maintain operation at the actual frequency until the reheating duration reaches the updated target reheating duration.

[0158] In one feasible implementation, the compensated heating capacity is the total heating capacity required to compensate for the defrosting mode. The step of adjusting the baseline heating capacity of the air conditioner when operating in heating mode according to the compensated heating capacity to obtain the target heating capacity includes: determining the sub-compensation heating capacity of the air conditioner per unit time based on the compensated heating capacity and the target supplementary heating duration; and determining the target heating capacity value of the air conditioner per unit time as the target heating capacity based on the sum of the sub-compensation heating capacity and the baseline heating capacity per unit time when the air conditioner operates in heating mode.

[0159] The ratio of compensated heating capacity to target heating duration is the sub-compensation heating capacity per unit time.

[0160] The sum of the supplementary heat output and the baseline heat output per unit time is the target heat output.

[0161] The target operating parameters of the air conditioner per unit time are determined based on the target heating capacity, and the operation of the air conditioner is controlled based on these target operating parameters per unit time.

[0162] In one embodiment, the above method facilitates precise control of heat compensation during the heating phase after the defrosting mode ends, further enhancing indoor comfort.

[0163] In other embodiments, the reference heating capacity can also be the total heating capacity corresponding to the heat load of the indoor space under the preset operating conditions within the target heating time, and the target heating capacity can also be the target value of the total heating capacity of the air conditioner within the target heating time. Based on this, the sum of the reference heating capacity and the compensation heating capacity can be used as the target heating capacity. The target sub-heating capacity per unit time is determined according to the ratio of the target heating capacity to the target heating time, and the target operating parameters are determined according to the target sub-heating capacity to control the operation of the air conditioner.

[0164] The above examples are only for understanding this application and do not constitute a limitation on the control method of the air conditioner of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0165] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the air conditioner control method of the above embodiments.

[0166] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In one embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0167] The aforementioned computer-readable storage medium may be included in the air conditioner; or it may exist independently and not assembled into the air conditioner.

[0168] The aforementioned computer-readable storage medium carries one or more programs that, when executed by the air conditioner, cause the air conditioner to perform the following process: obtaining the compensation heating capacity required by the air conditioner in defrost mode; adjusting the reference heating capacity of the air conditioner when operating in heating mode according to the compensation heating capacity to obtain the target heating capacity, wherein the reference heating capacity is the heating capacity corresponding to the heat load of the indoor space regulated by the air conditioner under preset operating conditions; and controlling the operation of the air conditioner according to the target operating parameters corresponding to the target heating capacity when the air conditioner operates in heating mode after the defrost mode has ended.

[0169] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0170] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the control method of the air conditioner described above. This program can solve the technical problem of how to reduce indoor temperature fluctuations and improve indoor comfort. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the control method of the air conditioner provided in the above embodiments, and will not be repeated here.

[0171] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0172] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. Modules described in the embodiments of this application can be implemented in software or hardware. The names of modules do not necessarily limit the specific unit itself. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0173] The above descriptions are merely some embodiments of this application and do not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the content of this specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application. Therefore, the protection scope of this application should be determined by the scope of the claims.

Claims

1. A control method of an air conditioner, wherein, The method includes: Control the air conditioner to operate in defrost mode; When the air conditioner exits the defrosting mode and starts the heating mode, the air conditioner is controlled to run the supplementary heating sub-mode. When the conditions for exiting the supplementary heating sub-mode are met, the air conditioner is controlled to operate in the normal heating sub-mode. Wherein, the operating frequency and / or heating capacity of the air conditioner in the supplementary heating sub-mode is greater than the operating frequency and / or heating capacity of the air conditioner in the conventional heating sub-mode.

2. The method of claim 1, wherein, The method further includes: Obtain the compensation heating demand of the air conditioner in defrost mode; The steps of controlling the air conditioner to operate in the supplementary heating sub-mode include: The target heating capacity of the air conditioner is determined based on the compensated heating capacity and the reference heating capacity, wherein the reference heating capacity is the heating capacity corresponding to the heat load of the indoor space regulated by the air conditioner under preset operating conditions; The air conditioner is controlled to operate according to the target operating parameters corresponding to the target heating capacity.

3. The method of claim 2, wherein, The target operating parameters include the target frequency of the air conditioner's compressor. After the step of controlling the air conditioner's operation according to the target operating parameters corresponding to the target heating capacity, the method further includes: If the duration of the supplementary heating operation is less than the target supplementary heating duration, obtain the actual operating frequency of the compressor; If the actual frequency is less than the target frequency, the target heating duration is updated based on the actual frequency, the reference heating capacity, and the target heating capacity. The compressor is controlled to operate at the actual frequency, and the conditions for exiting the heat replenishment sub-mode are determined when the heat replenishment runtime is greater than or equal to the updated target heat replenishment runtime. The heating operation duration is the duration during which the air conditioner operates in heating sub-mode.

4. The method of claim 3, wherein, After the step of obtaining the actual operating frequency of the compressor when the supplementary heating operation time is less than the target supplementary heating time, the method further includes: If the actual frequency is greater than or equal to the target frequency, the compressor is controlled to operate at the target frequency. If the duration of the supplementary heating operation is greater than or equal to the target supplementary heating duration, it is determined that the conditions for exiting the supplementary heating sub-mode are met; if the duration of the supplementary heating operation is less than the target supplementary heating duration, the process returns to the step of obtaining the actual operating frequency of the compressor.

5. The method of claim 3, wherein, The step of updating the target heating duration based on the actual frequency, the reference heating capacity, and the target heating capacity includes: Adjust the rated heating capacity according to the relationship between the actual frequency and the maximum frequency to obtain the reference heating capacity; Determine the heat deviation value between the reference heat capacity and the baseline heat capacity; The updated target reheating time is determined based on the ratio of the target heating capacity to the heat deviation value.

6. The method of claim 2, wherein, The compensated heating capacity is the total heating capacity required to compensate for the defrosting mode. The step of determining the target heating capacity of the air conditioner based on the compensated heating capacity and the baseline heating capacity includes: The sub-compensation heat capacity of the air conditioner per unit time is determined based on the compensated heating capacity and the target supplementary heating duration; The target heating value of the air conditioner per unit time is determined by summing the supplementary heating capacity with the baseline heating capacity per unit time when the air conditioner is operating in heating mode.

7. The method of claim 2, wherein, The step of obtaining the compensatory heating demand of the air conditioner in defrost mode includes: Obtain the ambient temperature and defrosting duration of the environment where the air conditioner is located in the defrosting mode; The compensation heating capacity is determined based on the ambient temperature and the defrosting time.

8. The method of claim 7, wherein, The ambient temperature includes indoor ambient temperature and outdoor ambient temperature, and the step of determining the compensated heating capacity based on the ambient temperature and the defrosting time includes: The compensated heating capacity is determined based on the preset heat compensation coefficient, the defrosting time, and the temperature difference between the indoor and outdoor ambient temperatures.

9. The method of claim 8, wherein, Before the step of determining the compensated heating capacity based on the preset heat compensation coefficient, the defrosting time, and the temperature difference between the indoor and outdoor ambient temperatures, the method further includes: The preset heat replenishment coefficient is determined based on the outdoor ambient temperature, and the preset heat replenishment coefficient is negatively correlated with the outdoor ambient temperature.

10. The method of claim 2, wherein, The step of obtaining the compensatory heating demand of the air conditioner in defrost mode includes: The first heating capacity of the air conditioner in the defrosting mode and the second heating capacity required by the air conditioner are obtained. The second heating capacity is the heating capacity corresponding to the heat load of the indoor space under preset operating conditions. The compensation heating capacity is determined based on the deviation between the second heating capacity and the first heating capacity.

11. The method of claim 10, wherein, The step of obtaining the first heating capacity of the air conditioner in the defrost mode includes: The air inlet temperature, air outlet temperature, and air volume of the air conditioner are obtained in the defrosting mode. The first heating capacity is determined based on the inlet air temperature, the outlet air temperature, and the air volume.

12. The method of any one of claims 2 to 11, wherein, The target operating parameters include at least one of the following: The target frequency of the air conditioner's compressor; The indoor target speed of the outdoor fan of the air conditioner; The target outdoor speed of the indoor fan of the air conditioner; The target opening degree of the throttling device of the air conditioner.

13. The method of any one of claims 2 to 11, wherein, The target heating capacity is greater than the reference heating capacity. The target ratio is defined as the ratio of the target heating capacity to the reference heating capacity. The target ratio is positively correlated with the ambient temperature of the environment where the air conditioner is located.

14. The method of claim 13, wherein, The target operating parameters include the target frequency of the air conditioner's compressor, which is greater than the reference frequency corresponding to the reference heating capacity, and the ratio of the target frequency to the reference frequency is positively correlated with the ambient temperature. And / or, The target operating parameters include the indoor target speed of the indoor fan of the air conditioner, which is greater than the indoor reference speed of the indoor fan corresponding to the reference heating capacity, and the ratio of the indoor target speed to the indoor reference speed is positively correlated with the ambient temperature. And / or, The target operating parameters include the outdoor target speed of the outdoor fan of the air conditioner, which is greater than the outdoor reference speed of the outdoor fan corresponding to the reference heating capacity, and the ratio of the outdoor target speed to the outdoor reference speed is positively correlated with the ambient temperature. And / or, The target operating parameters include the target opening degree of the throttling device of the air conditioner, the target opening degree being greater than the reference opening degree of the throttling device corresponding to the reference heating capacity, and the ratio of the target opening degree to the reference opening degree being positively correlated with the ambient temperature.

15. The method of any one of claims 1 to 11, wherein, The conditions for exiting the heat replenishment sub-mode include at least one of the following: The supplementary heating runtime is greater than or equal to the target supplementary heating runtime; wherein, the supplementary heating runtime is the duration during which the air conditioner operates in supplementary heating sub-mode; The current indoor temperature of the room regulated by the air conditioner is lower than the preset temperature.

16. An air conditioner, wherein, The air conditioner includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the control method for the air conditioner as claimed in any one of claims 1 to 15.

17. A storage medium, wherein, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the control method for the air conditioner as described in any one of claims 1 to 15.

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