Control method of air conditioner, air conditioner and storage medium

Abstract

The invention discloses a control method of an air conditioner, the air conditioner and a storage medium, and relates to the technical field of air conditioners. When the air conditioner quits the defrosting mode and runs in a heating mode, the air conditioner is controlled to run in a heat supplementing sub-mode; when the air conditioner meets the condition of quitting the heat compensation sub-mode, the air conditioner is controlled to operate in a conventional heating sub-mode; wherein the operation frequency and / or the heating capacity of the air conditioner in the heat compensation sub-mode are / is larger than the operation frequency and / or the heating capacity of the air conditioner in the conventional heating sub-mode. The application aims to reduce indoor environment temperature fluctuation and improve indoor comfort.

Description

TECHNICAL FIELD

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

[0002] The outdoor unit of an air conditioner is prone to frosting when heating in a low-temperature environment, which affects the performance of the air conditioner. In the heating process of the air conditioner, the outdoor unit meets the defrosting condition and switches to a defrosting mode. In the defrosting mode, the air conditioner stops indoor heating or maintains indoor heating and uses part of the heat of the system to defrost the outdoor unit. After frosting in the defrosting mode, the air conditioner runs according to the calculation method of the room heat load corresponding to the operating parameters calculated under the standard working condition. However, this method causes the heating capacity provided by the air conditioner to be mismatched with the heat load required by the room after multiple defrosting, resulting in large fluctuations in the indoor environment temperature and affecting the indoor comfort. SUMMARY

[0003] The main purpose of the present application is to provide a control method of an air conditioner, the air conditioner and a storage medium, which aims to reduce the fluctuations in the indoor environment temperature and improve the indoor comfort.

[0004] To achieve the above-mentioned purpose, the present application provides a control method of an air conditioner, which comprises the following steps:

[0005] controlling the air conditioner to run a defrosting mode;

[0006] controlling the air conditioner to run a heat compensation sub-mode when the air conditioner runs a heating mode after exiting the defrosting mode;

[0007] controlling the air conditioner to run a regular heating sub-mode when the air conditioner meets the condition of exiting the heat compensation sub-mode;

[0008] wherein the running frequency and / or heating capacity of the air conditioner in the heat compensation sub-mode are greater than the running frequency and / or heating capacity of the air conditioner in the regular heating sub-mode.

[0009] In an embodiment, the method further comprises the following steps:

[0010] obtaining a compensation heating capacity required by the air conditioner in the defrosting mode;

[0011] the step of controlling the air conditioner to run the heat compensation sub-mode comprises the following steps:

[0012] determining a target heating capacity of the air conditioner according to the compensation heating capacity and a reference heating capacity, wherein the reference heating capacity is a heating capacity corresponding to the heat load of the indoor space adjusted by the air conditioner under a preset working condition;

[0013] controlling the air conditioner to run according to target operating parameters corresponding to the target heating capacity.

[0014] In an embodiment, the target operating parameter comprises a target frequency of a compressor of the air conditioner, and after the step of controlling the air conditioner to operate according to the target operating parameter corresponding to the target heating capacity, the method further comprises:

[0015] obtaining an actual frequency of the compressor operating when the heating operation duration is less than the target heating operation duration;

[0016] updating the target heating operation duration according to the actual frequency, the reference heating capacity and the target heating capacity when the actual frequency is less than the target frequency;

[0017] controlling the compressor to operate at the actual frequency, and determining that the condition for exiting the heating compensation sub-mode is met when the heating operation duration is greater than or equal to the updated target heating operation duration;

[0018] wherein the heating operation duration is a duration for which the air conditioner operates in the heating compensation sub-mode.

[0019] In an embodiment, after the step of obtaining the actual frequency of the compressor operating when the heating operation duration is less than the target heating operation duration, the method further comprises:

[0020] controlling the compressor to operate at the target frequency when the actual frequency is greater than or equal to the target frequency;

[0021] determining that the condition for exiting the heating compensation sub-mode is met when the heating operation duration is greater than or equal to the target heating operation duration, and returning to the step of obtaining the actual frequency of the compressor operating when the heating operation duration is less than the target heating operation duration.

[0022] In an embodiment, the step of updating the target heating operation duration according to the actual frequency, the reference heating capacity and the target heating capacity comprises:

[0023] adjusting a rated heating capacity according to a relationship value between the actual frequency and a maximum frequency to obtain a reference heating capacity;

[0024] determining a heating capacity deviation value between the reference heating capacity and the reference heating capacity;

[0025] determining the updated target heating operation duration according to a ratio between the target heating capacity and the heating capacity deviation value.

[0026] In an embodiment, the compensation heating capacity is a total heating capacity compensated for by the defrosting mode, and the step of determining the target heating capacity of the air conditioner according to the compensation heating capacity and the reference heating capacity comprises:

[0027] determining a sub-heating amount of the air conditioner per unit time according to the compensation heating amount and the target heating time;

[0028] determining a target heating amount value of the air conditioner per unit time as the target heating amount according to a sum of the sub-heating amount and a reference heating amount per unit time when the air conditioner is running in a heating mode.

[0029] In an embodiment, the step of obtaining the compensation heating amount required by the air conditioner in the defrosting mode comprises:

[0030] obtaining an ambient temperature of an environment in which the air conditioner is located and a defrosting time length in the defrosting mode;

[0031] determining the compensation heating amount according to the ambient temperature and the defrosting time length.

[0032] In an embodiment, the ambient temperature comprises an indoor ambient temperature and an outdoor ambient temperature, and the step of determining the compensation heating amount according to the ambient temperature and the defrosting time length comprises:

[0033] determining the compensation heating amount according to a preset heating amount coefficient, the defrosting time length, and a temperature difference value between the indoor ambient temperature and the outdoor ambient temperature.

[0034] In an embodiment, before the step of determining the compensation heating amount according to the preset heating amount coefficient, the defrosting time length, and the temperature difference value between the indoor ambient temperature and the outdoor ambient temperature, the method further comprises:

[0035] determining the preset heating amount coefficient according to the outdoor ambient temperature, the preset heating amount coefficient being negatively correlated with the outdoor ambient temperature.

[0036] In an embodiment, the step of obtaining the compensation heating amount required by the air conditioner in the defrosting mode comprises:

[0037] obtaining a first heating amount of the air conditioner in the defrosting mode and a second heating amount required by the air conditioner, the second heating amount being a heating amount corresponding to a heat load of the indoor space under a preset working condition;

[0038] determining the compensation heating amount according to a deviation value between the second heating amount and the first heating amount.

[0039] In an embodiment, the step of obtaining the first heating amount of the air conditioner in the defrosting mode comprises:

[0040] obtaining an inlet air temperature of the air conditioner, an outlet air temperature of the air conditioner, and an air volume of the air conditioner in the defrosting mode;

[0041] The first heating capacity is determined according to the inlet air temperature, the outlet air temperature, and the air volume.

[0042] In an embodiment, the target operating parameter includes at least one of:

[0043] a target frequency of a compressor of the air conditioner;

[0044] an indoor target rotating speed of an indoor fan of the air conditioner;

[0045] an outdoor target rotating speed of an outdoor fan of the air conditioner;

[0046] a target opening degree of a throttling device of the air conditioner.

[0047] In an embodiment, the target heating capacity is greater than the reference heating capacity, a target ratio is defined as a ratio of the target heating capacity to the reference heating capacity, and the target ratio is positively correlated with an ambient temperature of an environment in which the air conditioner is located.

[0048] In an embodiment, the target operating parameter includes a target frequency of a compressor of the air conditioner, the target frequency is greater than a reference frequency corresponding to the reference heating capacity, a ratio of the target frequency to the reference frequency is positively correlated with the ambient temperature; and / or,

[0049] the target operating parameter includes an indoor target rotating speed of an indoor fan of the air conditioner, the indoor target rotating speed is greater than an indoor reference rotating speed of the indoor fan corresponding to the reference heating capacity, a ratio of the indoor target rotating speed to the indoor reference rotating speed is positively correlated with the ambient temperature; and / or,

[0050] the target operating parameter includes an outdoor target rotating speed of an outdoor fan of the air conditioner, the outdoor target rotating speed is greater than an outdoor reference rotating speed of the outdoor fan corresponding to the reference heating capacity, a ratio of the outdoor target rotating speed to the outdoor reference rotating speed is positively correlated with the ambient temperature; and / or,

[0051] the target operating parameter includes a target opening degree of a throttling device of the air conditioner, the target opening degree is greater than a reference opening degree of the throttling device corresponding to the reference heating capacity, a ratio of the target opening degree to the reference opening degree is positively correlated with the ambient temperature.

[0052] In an embodiment, the condition for meeting the exiting heat supplement sub-mode includes at least one of:

[0053] a heat supplement operating duration is greater than or equal to a target heat supplement duration; wherein the heat supplement operating duration is a duration for which the air conditioner operates in the heat supplement sub-mode;

[0054] The current indoor temperature of the indoor space adjusted by the air conditioner is less than the preset temperature.

[0055] In addition, to achieve the above-mentioned purpose, the application further provides an air conditioner, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, and the computer program is configured to implement the steps of the control method of the air conditioner.

[0056] In addition, to achieve the above-mentioned purpose, the application further provides a storage medium, which is a computer readable storage medium, and the storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the control method of the air conditioner.

[0057] The one or more technical solutions provided by the application have at least the following technical effects: in the heating stage after the defrosting of the air conditioner in the scheme, the air conditioner first runs the heat supplement sub-mode and then restores the normal heating operation, and the heating capacity and / or the operating frequency of the air conditioner at the end of the defrosting are no longer the reference heating capacity and / or the reference frequency of the current indoor heat load under the preset operating condition of the air conditioner in the normal heating sub-mode, but are greater than the reference heating capacity and / or the reference frequency. Based on this, the actual heating capacity of the air conditioner in the heat supplement sub-mode can compensate for the heat loss of 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 adjusted by the air conditioner, reducing the frequent adjustment of the air conditioner due to the mismatch between the load and the capacity, effectively reducing the indoor environment temperature fluctuation, and effectively improving the indoor comfort. BRIEF DESCRIPTION OF DRAWINGS

[0058] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the application and, together with the specification, serve to explain the principles of the application.

[0059] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without creative labor.

[0060] Figure 1 The structure schematic diagram of the refrigerant circulation system in an embodiment of the air conditioner in the application;

[0061] Figure 2 The device structure schematic diagram of the hardware running environment involved in the control method of the air conditioner in the application;

[0062] Figure 3 The flowchart provided by the control method embodiment one of the air conditioner in the application;

[0063] Figure 4 A flowchart provided for the second embodiment of the control method of the air conditioner of the present application is shown in the figure;

[0064] Figure 5 A flowchart provided for the third embodiment of the control method of the air conditioner of the present application is shown in the figure.

[0065] The purposes, functional features and advantages of the present application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0066] It should be understood that the specific embodiments described herein are merely intended to explain the technical solutions of the present application, and are not intended to limit the present application.

[0067] In order to better understand the technical solutions of the present application, the specific embodiments will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0068] The main solution of the embodiments of the present application is: controlling the air conditioner to run a defrosting mode; after the air conditioner exits the defrosting mode and runs a heating mode, controlling the air conditioner to run a heat supplement sub-mode; when the air conditioner meets the conditions for exiting the heat supplement sub-mode, controlling the air conditioner to run a regular heating sub-mode; wherein the running frequency and / or heating capacity of the air conditioner in the heat supplement sub-mode is greater than the running frequency and / or heating capacity of the air conditioner in the regular heating sub-mode.

[0069] In the present embodiment, for the convenience of description, the following is described with the air conditioner as the execution subject.

[0070] In the prior art, after defrosting, the air conditioner calculates the running parameters corresponding to the room heat load according to the calculation method under the standard working condition. However, this method will cause the heating capacity provided by the air conditioner to be mismatched with the required heat load of the room after multiple defrosting, resulting in large fluctuations in the indoor environment temperature and affecting the indoor comfort.

[0071] The present application provides the above-mentioned solution, in the heating stage after the air conditioner defrosting, the air conditioner first runs a heat supplement sub-mode and then restores the regular heating operation. The heating capacity and / or running frequency of the air conditioner at the end of defrosting is no longer the reference heating capacity and / or reference frequency of the current indoor heat load under the preset working condition of the air conditioner running in the regular heating sub-mode, but is greater than the reference heating capacity and / or reference frequency. Based on this, the actual heating capacity of the air conditioner in the heat supplement sub-mode can compensate for the heat loss of 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 due to the mismatch between the load and the capacity, effectively reducing the fluctuations in the indoor environment temperature, and effectively improving the indoor comfort.

[0072] The embodiment of the present application provides an air conditioner. The air conditioner can be any type of air conditioner, such as a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, a ceiling air conditioner, and a multi-connected air conditioner.

[0073] In the embodiment, referring to Figure 1 , the air conditioner can 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. The indoor heat exchanger 3 is correspondingly provided with an indoor fan 7, and the outdoor heat exchanger 5 is correspondingly provided with an outdoor fan 8.

[0074] The reversing assembly 2 (for example, a four-way valve) has a first operating state and a second operating state. When the reversing assembly 2 operates in the first operating state, the exhaust port of the compressor 1 is in communication with the outdoor heat exchanger 5, the return port of the compressor 1 is in communication with the indoor heat exchanger 3, and the refrigerant discharged by the compressor 1 flows back to the compressor 1 after sequentially flowing through the outdoor heat exchanger 5, the throttling device 4, and the outdoor heat exchanger 5; when the reversing assembly 2 operates in the second operating state, the exhaust port of the compressor 1 is in communication with the indoor heat exchanger 3, the return port of the compressor 1 is in communication with the outdoor heat exchanger 5, and the refrigerant discharged by the compressor 1 flows back to the compressor 1 after sequentially flowing through the indoor heat exchanger 3, the throttling device 4, and the outdoor heat exchanger 5.

[0075] Based on the cooperation of the reversing assembly 2 and the throttling device 4, the air conditioner at least includes the following operating modes:

[0076] The first mode, for example, a heating mode, the reversing assembly 2 operates in the first operating state, the throttling device 4 operates at a throttling opening degree, the indoor heat exchanger 3 is in a condensing state, the outdoor heat exchanger 5 is in an evaporating state, and the indoor heat exchanger 3 can release heat to increase the temperature of the indoor space.

[0077] The second mode, for example, a cooling mode or a dehumidification mode, the reversing assembly 2 operates in the second operating state, the throttling device 4 operates at a throttling opening degree, the indoor heat exchanger 3 is in an evaporating state, the outdoor heat exchanger 5 is in a condensing state, and the indoor heat exchanger 3 can release cold energy to reduce the temperature of the indoor space or can cause the moisture in the air to condense on the surface of the indoor heat exchanger 3 to reduce the humidity of the indoor air.

[0078] The first defrosting mode, the reversing assembly 2 operates in the first operating state, the throttling device 4 operates at an opening degree greater than the above throttling opening degree, the indoor heat exchanger 3 and the outdoor heat exchanger 5 are both in a heat releasing state, and the outdoor heat exchanger 5 can release heat to melt the ice and frost of the outdoor unit.

[0079] The second defrosting mode, the reversing assembly 2 operates in the second operating state, the throttling device 4 operates in the defrosting opening degree, the indoor heat exchanger 3 is in the evaporating state, the outdoor heat exchanger 5 is in the condensing state, and the outdoor heat exchanger 5 can release heat to melt the ice and frost of the outdoor unit.

[0080] With reference to Figure 2 The air conditioner further comprises an environment detection module 6 configured to detect at least one of an environmental state parameter (such as an environmental temperature, an environmental humidity, an environmental enthalpy, etc.) of an environment in which the air conditioner is located. The environment detection module 6 can comprise an indoor detection module and / or an outdoor detection module.

[0081] With reference to Figure 2 The air conditioner further comprises a control device 100, and the compressor 1, the reversing assembly 2, the indoor fan 7, the outdoor fan 8, the throttling device 4, and the environment detection module 6 are connected to the control device 100.

[0082] The control device 100 comprises at least one processor 1001, and a memory 1002 and a timer 1003, etc. in communication connection with the at least one processor 1001; the memory 1002 stores instructions executable by the at least one processor 1001, and the instructions are executed by the at least one processor 1001 to enable the at least one processor 1001 to execute the control method of the air conditioner in the following embodiments.

[0083] With reference to Figure 2 The control device 100 shown in the figure is only an example and should not impose any limitation on the functions and use range of the embodiments of the present application. The air conditioner in the embodiments of the present application can include, but is not limited to, mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), and vehicle-mounted terminals (such as vehicle-mounted navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 2 The control device 100 shown in the figure is only an example and should not impose any limitation on the functions and use range of the embodiments of the present application.

[0084] As Figure 2As shown, the control device 100 can include a processor 1001 (e.g., a central processing unit, a graphics processing unit, etc.) that can perform various appropriate actions and processes according to programs stored in a memory 1002, which can be programs in a read only memory (ROM) or programs loaded from a storage device into a random access memory (RAM). In the RAM, various programs and data required for the operation of the control device 100 are also stored. The processor 1001, the memory 1002 (ROM and RAM), and the like are connected to each other through a bus. An input / output (I / O) interface is also connected to the bus. Generally, the following systems can be connected to the I / O interface: input devices including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, and the like; output devices including, for example, a liquid crystal display (LCD), a speaker, a vibrator, and the like; storage devices including, for example, a magnetic tape, a hard disk, and the like; and communication devices. The communication devices can allow the control device 100 to perform wireless or wired communication with other devices to exchange data. Although the control device 100 having various systems is shown in the drawing, it should be understood that all of the systems shown are not required to be implemented or possessed. More or less systems can be alternatively implemented or possessed.

[0085] In particular, according to the embodiments disclosed in the present application, the method flow described in the following embodiments can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product comprising a computer program carried on a computer readable medium, the computer program containing program codes for executing the method shown in the flow chart. In such embodiments, the computer program can be downloaded and installed from a network through a communication device, or installed from the memory 1002. When the computer program is executed by the processor 1001, the above-mentioned functions defined in the control method of the air conditioner of the embodiments disclosed in the present application are performed.

[0086] The air conditioner provided in the present application adopts the control method of the air conditioner in the following embodiments, which can solve the technical problem of how to reduce the indoor environment temperature fluctuation and improve the indoor comfort. Compared with the prior art, the air conditioner provided in the present application has the same beneficial effects as the control method of the air conditioner provided in the following embodiments, and other technical features in the air conditioner are the same as the features disclosed in the following embodiments, which will not be repeated here.

[0087] It should be noted that the execution subject of the embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone or the like, or an electronic device, an air conditioner or the like capable of realizing the above functions. The following takes the air conditioner as an example to describe the embodiment and the following embodiments.

[0088] Based on this, the application provides an air conditioner control method, which refers to Figure 3 , Figure 3 The flowchart of the first embodiment of the air conditioner control method of the application is shown in the figure.

[0089] In the embodiment, the air conditioner control method comprises steps S10-S30:

[0090] Step S10, control the air conditioner to run the defrosting mode;

[0091] The defrosting mode includes the first defrosting mode or the second defrosting mode described above or the like.

[0092] Step S20, when the air conditioner exits the defrosting mode and runs the heating mode, control the air conditioner to run the heat supplement sub-mode;

[0093] The heating mode includes the heat supplement sub-mode and the conventional heating sub-mode.

[0094] The running parameters of the air conditioner in the heat supplement sub-mode can be pre-set fixed parameters (such as maximum heating capacity and / or maximum frequency or the like), or parameters determined according to the actual running situation of the air conditioner, for example, parameters determined according to the state parameters of the air conditioner in the defrosting mode.

[0095] Step S30, when the air conditioner meets the condition for exiting the heat supplement sub-mode, control the air conditioner to run the conventional heating sub-mode;

[0096] The running frequency and / or heating capacity of the air conditioner in the heat supplement sub-mode are greater than the running frequency and / or heating capacity of the air conditioner in the conventional heating sub-mode.

[0097] In the embodiment, the condition for exiting the heat supplement sub-mode includes at least one of the following: the heat supplement running duration is greater than or equal to the target heat supplement duration; the current indoor temperature of the indoor space adjusted by the air conditioner is less than the preset temperature. The heat supplement running duration is the duration of the air conditioner running in the heat supplement sub-mode. The target heat supplement duration is the total duration of the heat supplement stage in the heating mode after the defrosting mode ends. The target heat supplement duration can be a pre-set fixed duration, or a duration determined according to the actual running situation of the air conditioner, for example, the target heat supplement duration can be determined according to the outdoor environment temperature and the temperature change value of the outdoor heat exchanger before and after the air conditioner runs the defrosting mode.

[0098] In the conventional heating sub-mode, based on a preset relationship between a state parameter of the heat load of the indoor space and the heating capacity, a reference heating capacity can be determined according to the current state parameter of the heat load, and a corresponding operating parameter of the reference heating capacity can be determined according to a corresponding relationship between the heating capacity and the operating parameter (for example, at least one of the compressor frequency, the indoor fan speed, the outdoor fan speed, and the opening degree of the throttling device).

[0099] The embodiment provides a control method of an air conditioner. In the scheme, after defrosting of the air conditioner is completed, the air conditioner is first operated in a heat compensation sub-mode and then is restored to conventional heating operation. When the defrosting is just completed, the heating capacity and / or the operating frequency of the air conditioner are no longer the reference heating capacity and / or the reference frequency that the indoor heat load should have under the preset operating condition of the air conditioner in the conventional heating sub-mode, but are greater than the reference heating capacity and / or the reference frequency. Based on this, the actual heating capacity of the air conditioner in the heat compensation sub-mode can compensate for the heat loss of the air conditioner in the defrosting process, so as to ensure 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, reduce the frequent adjustment of the air conditioner caused by the mismatch between the load and the capacity, effectively reduce the indoor environment temperature fluctuation, and effectively improve the indoor comfort.

[0100] Based on any of the above embodiments, in the second embodiment of the present application, the same or similar contents as the above embodiments can be referred to the above introduction, and will not be described in detail. On this basis, referring to Figure 4 , the method further includes step S01:

[0101] Step S01, obtaining a compensation heating capacity required by the air conditioner in the defrosting mode;

[0102] The compensation heating capacity can be understood as the heat loss of the air conditioner in the heating mode compared to the air conditioner in the defrosting mode. The compensation heating capacity is the deviation between the reference heating capacity and the actual heating capacity in the defrosting mode.

[0103] The compensation heating capacity can be determined according to the air conditioner state parameter of the air conditioner itself and / or the environmental parameter of the environment where the air conditioner is located in the defrosting mode. The compensation heating capacity can be calculated by substituting the air conditioner state parameter and / or the environmental parameter into a preset formula. Alternatively, the actual heating capacity of the air conditioner in the defrosting mode can be determined by the air conditioner state parameter and / or the environmental parameter, the reference heating capacity can be determined by the state parameter representing the indoor heat load, and the compensation heating capacity can be determined according to the deviation between the reference heating capacity and the actual heating capacity. Alternatively, the compensation heating capacity can be determined according to the type of the defrosting mode in which the air conditioner operates. Different defrosting modes correspond to different compensation heating capacities.

[0104] In the present embodiment, the compensated heating capacity is the total amount of the heating capacity compensated by the air conditioner in the defrosting mode. In other embodiments, the compensated heating capacity is also the heating capacity compensated by the air conditioner per unit time in the defrosting mode.

[0105] In the present embodiment, the air conditioner is controlled to run in the heating mode, and whether the air conditioner meets the starting condition of the defrosting mode is determined when the running time of the heating mode is greater than a preset time. When the starting condition of the defrosting mode is met, the air conditioner is controlled to run in the defrosting mode. When the defrosting mode runs to reach the exit condition of the defrosting mode, the compensated heating capacity required by the air conditioner in the defrosting mode can be obtained. In other embodiments, the compensated heating capacity can also be obtained during the process of running the heating mode after the air conditioner ends the defrosting mode.

[0106] Based on step S01, the step of controlling the air conditioner to run in the heat compensation sub-mode includes steps S21 to S22:

[0107] In step S21, the target heating capacity of the air conditioner is determined according to the compensated heating capacity and a reference heating capacity. The reference heating capacity is the heating capacity corresponding to the heat load of the indoor space adjusted by the air conditioner under a preset working condition.

[0108] The preset working condition is a preset heating working condition (the working condition when the air conditioner exits the defrosting mode and runs in the heating mode). A preset relationship between the state parameter representing the heat load of the indoor space and the heating capacity under the heating working condition is established in advance. Based on the preset relationship, the corresponding heating capacity can be determined as the reference heating capacity through the current state parameter representing the heat load of the indoor space. In the present embodiment, the room heat load under the heating working 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 reference heating capacity.

[0109] The target heating capacity can be a target value of the total heating capacity of the air conditioner in the heating mode, or the target heating capacity can also be a target value of the heating capacity of the air conditioner per unit time (such as per second or per minute, etc.) in the heating mode.

[0110] In the present embodiment, the target heating capacity is obtained by increasing the reference heating capacity according to the compensated heating capacity. In the present embodiment, the target heating capacity is greater than the reference heating capacity. A 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 in which the air conditioner is located. The ambient temperature can include the indoor ambient temperature and / or the outdoor ambient temperature. In an embodiment, the target ratio is positively correlated with the outdoor ambient temperature, that is, the lower the outdoor ambient temperature, the smaller the target ratio, and the higher the outdoor ambient temperature, the larger the target ratio.

[0111] Step S22, controlling the air conditioner to operate according to the target operating parameter corresponding to the target heating capacity. The target operating parameter can include one or more target parameters of one or more components of the air conditioner related to the heating capacity. When the target operating parameter includes more than one target parameter, the more than one target parameter are not independent of each other, but are parameters that coordinate to achieve the target heating capacity of the air conditioner.

[0112] The function relationship between the operating parameter of the air conditioner and the heating capacity is preset, and the target operating parameter corresponding to the target heating capacity can be determined based on the function relationship.

[0113] The target operating parameter can include at least one of the following: a target frequency of a compressor of the air conditioner; a target indoor rotating speed of an outdoor fan of the air conditioner; a target outdoor rotating speed of an indoor fan of the air conditioner; and a target opening degree of a throttling device of the air conditioner.

[0114] In this embodiment, the air conditioner can be controlled to operate at the target operating parameter for the target heating duration and then resume operating at the normal heating parameter. In other implementations, the air conditioner can also be controlled to operate at the target operating parameter during the entire heating mode after the current defrosting mode ends and before the next defrosting mode starts.

[0115] In this embodiment, the air conditioner operates at the target operating parameter when the defrosting mode ends and the heating mode starts. In other implementations, the air conditioner can also operate at the target operating parameter when the defrosting mode ends and the heating mode operates until a preset condition is met (for example, the temperature difference between the set temperature and the indoor ambient temperature is greater than a preset temperature difference).

[0116] In this embodiment, the target operating parameter includes a target frequency of a compressor of the air conditioner, the target frequency is greater than a 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. 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:

[0117] Outdoor ambient temperature T4 Ratio of target frequency to reference frequency T4＜-8.33℃ 1～1.25 -8.33℃≤T4≤0℃ 1～2 T4＞0℃ 1～4

[0118] Table 1

[0119] In this embodiment, the target operating parameter includes a target indoor rotating speed of an indoor fan of the air conditioner, the target indoor rotating speed is greater than a reference indoor rotating speed of the indoor fan corresponding to the reference heating capacity, and the ratio of the target indoor rotating speed to the reference indoor rotating speed is positively correlated with the ambient temperature. The relationship between the ratio of the target indoor rotating speed to the reference indoor rotating speed and the ambient temperature can be analogously referred to the relationship between the ratio of the target frequency to the reference frequency and the ambient temperature, which will not be described here.

[0120] In the embodiment, the target operating parameter includes an outdoor target rotating speed of an outdoor fan of the air conditioner, the outdoor target rotating speed is greater than an outdoor reference rotating speed of the outdoor fan corresponding to the reference heating capacity, and a ratio of the outdoor target rotating speed to the outdoor reference rotating speed is positively correlated with the ambient temperature. The relationship between the ratio of the outdoor target rotating speed to the outdoor reference rotating speed and the ambient temperature can be analogously referred to the relationship between the ratio of the target frequency to the reference frequency and the ambient temperature, which is not described herein again.

[0121] In the embodiment, the target operating parameter includes a target opening degree of a throttling device of the air conditioner, the target opening degree is greater than a reference opening degree of the throttling device corresponding to the reference heating capacity, and a ratio of the target opening degree to the reference opening degree is 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 analogously referred to the relationship between the ratio of the target frequency to the reference frequency and the ambient temperature, which is not described herein again.

[0122] It should be noted that, in the process of controlling the operation of the related components of the air conditioner according to the target operating parameter, the related components can operate according to the target operating parameter, or the reference operating parameter of the related components is determined according to the preset protection strategy, and one of the reference operating parameter and the target operating parameter is selected according to the protection condition to control the operation of the corresponding components. For example, the target operating parameter can include a target frequency of the compressor, the upper limit frequency allowed for the reliable operation of the compressor can be determined according to the preset protection strategy, the compressor operates at the upper limit frequency when the target frequency is greater than the upper limit frequency, and the compressor operates at the target frequency when the target frequency is less than or equal to the upper limit frequency.

[0123] In the embodiment, the target heating capacity in the heat supplement sub-mode is combined with the compensation heating capacity required in the defrosting mode to compensate the reference heating capacity, based on which the actual heating capacity of the air conditioner when the air conditioner operates according to the target operating parameter corresponding to the target heating capacity can compensate the heat loss of the air conditioner in the defrosting process, so as to ensure that the heating capacity of the air conditioner is accurately matched with the actual heat load of the indoor space adjusted by the air conditioner, reduce the frequent adjustment of the air conditioner caused by the mismatch between the load and the capacity, effectively reduce the fluctuation of the indoor environment temperature, and effectively improve the indoor comfort.

[0124] In a feasible implementation, the step of obtaining the compensation heating capacity required by the air conditioner in the defrosting mode includes: obtaining an ambient temperature of an environment where the air conditioner is located and a defrosting time length; and determining the compensation heating capacity according to the ambient temperature and the defrosting time length.

[0125] The ambient temperature can include an indoor ambient temperature and / or an outdoor ambient temperature. The defrosting time length is the total time length of the defrosting mode of the air conditioner.

[0126] The corresponding relationship between the ambient temperature, the defrosting time length and the compensation heating amount can be established in advance, and the compensation heating amount corresponding to the current ambient temperature and the defrosting time length can be determined based on the corresponding relationship. The corresponding relationship can be a fixed relationship set in advance, or can be determined according to the actual working condition of the air conditioner. In this embodiment, the corresponding relationship between the ambient temperature, the defrosting time length and the compensation heating amount is obtained according to the outdoor ambient temperature, and different outdoor ambient temperatures correspond to different corresponding relationships. The compensation heating amount corresponding to the ambient temperature and the defrosting time length is negatively correlated with the outdoor ambient temperature, that is, the higher the outdoor ambient temperature, the smaller the compensation heating amount corresponding to the ambient temperature and the defrosting time length.

[0127] In this embodiment, the ambient temperature includes the indoor ambient temperature and the outdoor ambient temperature, and the compensation heating amount can be determined according to the indoor ambient temperature, the outdoor ambient temperature and the defrosting time length. In this embodiment, the compensation heating amount is determined according to a preset heating amount coefficient, the defrosting time length and the temperature difference between the indoor ambient temperature and the outdoor ambient temperature. The preset heating amount coefficient represents the relationship between the total heating amount of the air conditioner in the defrosting mode, the temperature difference between the indoor and outdoor temperatures and the defrosting time length. Based on the relationship between the compensation heating amount, the total heating amount in the defrosting mode and the total amount of the reference heating amount in the defrosting mode, a quantitative relationship between the preset heating amount coefficient, the defrosting time length, the temperature difference between the indoor ambient temperature and the outdoor ambient temperature and the compensation heating amount can be established in advance. Based on the quantitative relationship, the compensation heating amount can be calculated by the preset heating amount coefficient, the defrosting time length and the temperature difference.

[0128] The preset heating amount coefficient can be a fixed parameter value set in advance, or a value determined according to the actual operation of the air conditioner. In this embodiment, in order to improve the accuracy of the determined compensation heating amount, the preset heating amount coefficient can be determined according to the outdoor ambient temperature, and the preset heating amount coefficient is negatively correlated with the outdoor ambient temperature. In one implementation, the preset heating amount coefficient can be determined according to the temperature interval of the outdoor ambient temperature. In another implementation, the outdoor ambient temperature can be substituted into a preset formula to calculate the preset heating amount coefficient. In order to more intuitively understand the relationship between the outdoor ambient temperature and the preset heating amount coefficient, the following Table 2 is used for illustration.

[0129] Outdoor ambient temperature T4 (°C) Pre-set heat supplement amount coefficient (W / °C) -19℃＜T4＜-8.33℃ 311 -8.33℃≤T4≤6℃ 291

[0130] Table 2

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

[0132] In the embodiment, the compensating heating capacity is determined in combination with the ambient temperature in the defrosting mode and the defrosting duration, which can accurately reflect the heat loss of the defrosting mode compared with the normal heating operation, is conducive to accurate heat compensation after the defrosting, effectively improves the accuracy of matching between the heating capacity of the air conditioner and the actual heat load demand, further reduces the indoor temperature fluctuation in the heating process, and further improves the indoor comfort. The compensating heating capacity is determined in combination with the preset heat compensation coefficient, the defrosting duration and the indoor-outdoor temperature difference. The preset heat compensation coefficient is set according to the outdoor ambient temperature, which is conducive to improving the accuracy and efficiency of determining the compensating heating capacity, and further improving the indoor comfort.

[0133] In other embodiments, the preset heat compensation coefficient can also be a fixed value set in advance.

[0134] In other embodiments, the compensating heating capacity can also be determined according to the defrosting duration, the temperature difference between the indoor ambient temperature and the set temperature, and the outdoor ambient temperature.

[0135] In another possible implementation, the step of obtaining the compensating heating capacity required by the air conditioner in the defrosting mode includes: obtaining a first heating capacity of the air conditioner in the defrosting mode and a second heating capacity required by the air conditioner, the second heating capacity being a heating capacity corresponding to a heat load of the indoor space under a preset working condition; and determining the compensating heating capacity according to a deviation value of the second heating capacity and the first heating capacity.

[0136] The first heating capacity can be determined according to the running state parameters of the air conditioner itself in the defrosting mode and / or the environmental state parameters of the environment where the air conditioner is located. The first heating capacity is the total heating capacity of the air conditioner in the defrosting mode. In the embodiment, the inlet air temperature of the air conditioner, the outlet air temperature of the air conditioner and the air volume of the air conditioner are obtained; and the first heating capacity is determined according to the inlet air temperature, the outlet air temperature and the air volume. The air volume is the total amount of air exchanged with the indoor heat exchanger under the driving of the indoor fan. The air volume can be determined according to the rotating speed of the indoor fan. The first heating capacity can be determined according to the temperature deviation between the inlet air temperature and the outlet air temperature and the air volume.

[0137] The second heating capacity can be determined according to the state parameter representing the heat load of the indoor space in the defrosting mode. The determination method of the second heating capacity can be analogously referred to the above-mentioned reference heating capacity, which is not described herein. The second heating capacity is the total heating capacity required by the air conditioner in the defrosting mode.

[0138] In the embodiment, the deviation value of the second heating capacity from 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 according to a correction coefficient. The correction coefficient can be a pre-set fixed parameter, or can be determined according to the actual operation of the air conditioner, for example, the correction coefficient can be determined according to the change value of the indoor temperature in the defrosting mode and the temperature difference value of the indoor temperature and the set temperature at the end of the defrosting mode.

[0139] In the embodiment, by the above-mentioned manner, the compensation heating capacity can be more accurately obtained, and the indoor heating comfort can be further improved.

[0140] In other embodiments, when the indoor fan operates at a set rotating speed, the first heating capacity can also be determined according to the inlet air temperature and the outlet air temperature, or the first heating capacity can be determined according to the temperature state parameter of the indoor heat exchanger.

[0141] Based on any of the above-mentioned embodiments, in a third embodiment of the present application, the same or similar contents as the above-mentioned embodiments can be referred to the above-mentioned description, and will not be described in detail. On this basis, the target operating parameter includes a target frequency of a compressor of the air conditioner, please refer to Figure 5 , after step S22, further comprising:

[0142] Step S23, determining whether the heat compensation operating time is less than the target heat compensation time length;

[0143] The heat compensation operating time length is the time length during which the air conditioner operates in the heat compensation sub-mode;

[0144] In the case where the heat compensation operating time length is greater than the target heat compensation time length, step S30 is performed; in the case where the heat compensation operating time length is less than or equal to the target heat compensation time length, step S24 is performed;

[0145] Step S24, obtaining an actual frequency of the compressor operation;

[0146] After the air conditioner obtains the target frequency, the target frequency is sent to a control device connected to the compressor. The control device can determine the upper limit frequency of the compressor according to a pre-set protection strategy. When the upper limit frequency is less than the target frequency, the control device controls the compressor to operate 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 operate at the target frequency, and the target frequency is the actual frequency.

[0147] Step S25, in the case where the actual frequency is less than the target frequency, updating the target heat compensation time length according to the actual frequency, the reference heating capacity and the target heating capacity;

[0148] The updated target heat compensation time length is greater than the target heat compensation time length before the update.

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

[0150] In one implementation manner of the embodiment, the rated heating capacity is adjusted according to the relationship value of the actual frequency and the maximum frequency to obtain a reference heating capacity; a heating capacity deviation value of the reference heating capacity and the reference heating capacity is determined; and the updated target heating length is determined according to the ratio of the target heating capacity and the heating capacity deviation value. The maximum frequency herein is the maximum value of the allowed operating frequency of the compressor. The rated heating capacity is the nominal value of the heating capacity when the compressor operates at the maximum frequency under the preset working condition.

[0151] In another implementation manner of the embodiment, the actual frequency Fr, the reference heating capacity Lh and the target heating capacity Qx are substituted into the following formula to calculate the updated heating length Tx: Tx=Qx*Fmax / (Fmax*Qmax-Lh*Fmax), wherein Fmax is the maximum frequency and Qmax is the rated heating capacity.

[0152] In step S26, the compressor is controlled to operate at the actual frequency, and it is determined that the condition for exiting the heating sub-mode is met when the heating operating length is greater than or equal to the updated target heating length.

[0153] In the process of controlling the compressor to operate at the actual frequency, the step S24 can be returned to execute when the heating operating length is less than the updated target heating length, or the compressor can be maintained to operate at the actual frequency.

[0154] After step S24, when the actual frequency is greater than or equal to the target frequency, the compressor is controlled to operate at the target frequency; when the heating operating length is greater than or equal to the target heating length, it is determined that the condition for exiting the heating sub-mode is met; and when the heating operating length is less than the target heating length, the step of obtaining the actual frequency of the compressor is returned to execute.

[0155] In the embodiment, when the length of the compensating heating operation is greater than or equal to the target length of the compensating heating operation, it indicates that the compensating heating of the air conditioner is completed, at this time, the air conditioner is operated in the normal heating mode, and the operation parameters corresponding to the heating capacity corresponding to the heating load are restored to control the operation of the air conditioner, which is beneficial to avoid that the heating capacity is too large; when the length of the compensating heating operation is less than the target length of the compensating heating operation, if the actual frequency of the compressor is less than the target frequency, it indicates that the actual heating capacity of the air conditioner is less than the compensating heating capacity required by the defrosting mode, at this time, the target length of the compensating heating operation is updated in combination with the actual frequency, the reference heating capacity and the target heating capacity, and the air conditioner is controlled to perform compensating heating with the updated target length of the compensating heating operation and the current actual frequency, which is beneficial to ensure that the total amount of compensating heating in the compensating heating stage is accurately matched with the compensating heating capacity required by the defrosting mode; when the length of the compensating heating operation is greater than or equal to the target length of the compensating heating operation, if the actual frequency of the compressor in the stage reaches the target frequency, it indicates that the heating capacity in the compensating heating stage of the air conditioner is sufficient to compensate for the lost heating capacity in the defrosting mode, then the compressor maintains the target frequency and controls the air conditioner to perform compensating heating based on the original target length of the compensating heating operation, which is beneficial to ensure the accuracy of the compensating heating capacity. In combination with the actual frequency, the reference heating capacity and the target heating capacity, the target length of the compensating heating operation is updated, which is beneficial to ensure that the compensating heating capacity in the compensating heating stage is matched with the compensating heating capacity required by the defrosting mode. As can be seen, the above different ways of compensating heating control are adopted based on different situations, which is beneficial to effectively improve the accuracy of matching the compensating heating capacity in the compensating heating stage with the compensating heating capacity required by the defrosting mode, thereby further improving the indoor comfort.

[0156] In other embodiments, in the case where the actual frequency is less than the target frequency, the target length of the compensating heating operation can also be maintained unchanged, and the current running speed of the indoor fan or the outdoor fan can be increased according to the actual frequency, the reference heating capacity and the target heating capacity.

[0157] In other embodiments, in the case where the actual frequency is greater than the target frequency, the target length of the compensating heating operation can also be updated according to the actual frequency, the reference heating capacity and the target heating capacity, and the compressor can also maintain the actual frequency until the length of the compensating heating operation reaches the updated target length of the compensating heating operation.

[0158] In a possible implementation, the compensating heating capacity is the total heating capacity required to be compensated by the defrosting mode, the step of adjusting the reference heating capacity of the air conditioner in the heating mode according to the compensating heating capacity to obtain a target heating capacity includes: determining a sub-compensating heating capacity of the air conditioner per unit time according to the compensating heating capacity and the target length of the compensating heating operation; and determining a target value of the heating capacity of the air conditioner per unit time as the target heating capacity according to the sum of the sub-compensating heating capacity and the reference heating capacity of the air conditioner per unit time in the heating mode.

[0159] The ratio of the compensating heating capacity to the target length of the compensating heating operation is the sub-compensating heating capacity per unit time.

[0160] The sum of the sub-heating amount and the reference heating amount per unit time is a target heating amount.

[0161] The target operation parameter per unit time of the air conditioner is determined according to the target heating amount, and the air conditioner is controlled to operate according to the target operation parameter per unit time.

[0162] In the embodiment, by the above manner, it is conducive to accurately regulating and controlling the heat compensation in the heating stage after the defrosting mode ends, and further improves the indoor comfort.

[0163] In other embodiments, the reference heating amount can also be a total heating amount corresponding to a heat load of the indoor space in a preset working condition within a target heating time, and the target heating amount can also be a target value of a total heating amount of the air conditioner within the target heating time. Based on this, the sum of the reference heating amount and the compensation heating amount can be taken as the target heating amount, the target sub-heating amount per unit time is determined according to the ratio of the target heating amount to the target heating time, and the air conditioner is controlled to operate according to the target operation parameter determined according to the target sub-heating amount.

[0164] It should be noted that the above examples are only used for understanding the present application and do not constitute a limitation on the control method of the air conditioner of the present application. More forms of simple transformation based on this technical concept are within the protection scope of the present application.

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

[0166] The computer readable storage medium provided in the application may, for example, be a U disk, but is not limited to an electric, magnetic, optical, electromagnetic, infrared, or semiconductor system, system, or device, or any combination of the above. More specific examples of the computer readable storage medium may include, but are not limited to, an electric connection with one or more conductive wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the embodiment, the computer readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system, or device. The program code contained on the computer readable storage medium can be transmitted by any suitable medium, including but not limited to an electric wire, an optical cable, an RF (Radio Frequency), and the like, or any suitable combination of the above.

[0167] The above computer readable storage medium may be contained in the air conditioner, or may exist separately without being assembled into the air conditioner.

[0168] The above computer readable storage medium carries one or more programs, which, when executed by the air conditioner, cause the air conditioner to perform the following processes: obtaining a compensation heating amount required by the air conditioner in a defrosting mode; adjusting a reference heating amount of the air conditioner in a heating mode according to the compensation heating amount to obtain a target heating amount, the reference heating amount being a heating amount corresponding to a heat load of an indoor space adjusted by the air conditioner under a preset working condition; and controlling the air conditioner to operate according to a target operating parameter corresponding to the target heating amount in a case where the air conditioner operates in the heating mode after the defrosting mode ends.

[0169] Computer program code for carrying out operations of the present application can be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computer (for example, through the Internet using an Internet Service Provider).

[0170] The readable storage medium provided by the present application is a computer readable storage medium, which stores computer readable program instructions (i.e. computer program) for executing the control method of the air conditioner, and can solve the technical problem of how to reduce the indoor environment temperature fluctuation and improve the indoor comfort. Compared with the prior art, the computer readable storage medium provided by the present application has the same beneficial effects as the control method of the air conditioner provided by the above-mentioned embodiments, which will not be repeated here.

[0171] The flowcharts and block diagrams in the drawings illustrate the possible architectures, functionality, and operations of systems, methods, and computer program products in accordance with various embodiments of the present application. In this regard, each block in the flowcharts or block diagrams can represent a module, a segment, or a portion of code, which comprises one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions noted in the blocks can occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently or in the reverse order, depending on the functionality involved. It will 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 by special purpose hardware-based systems that perform the specified functions or operations, or combinations of special purpose hardware and computer instructions.

[0172] It should be understood that each part of the present application can be realized by hardware, software, firmware or a combination thereof. The modules described in the embodiments of the present application can be realized by software or hardware. In some cases, the name of the module does not constitute a limitation on the unit itself. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0173] The above only describes some embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A control method for an air conditioner, characterized in that, 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 as described in claim 1, characterized in that, 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 as described in claim 2, characterized in that, 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 as described in claim 3, characterized in that, 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 as described in claim 3, characterized in that, 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 as described in claim 2, characterized in that, 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 as described in claim 2, characterized in that, 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 as described in claim 7, characterized in that, 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 as described in claim 8, characterized in that, 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 as described in claim 2, characterized in that, 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 as described in claim 10, characterized in that, 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 according to any one of claims 2 to 11, characterized in that, 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 according to any one of claims 2 to 11, characterized in that, 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 as described in claim 13, characterized in that, 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 according to any one of claims 1 to 11, characterized in that, 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, characterized in that, 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, characterized in that, 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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