Defrosting control method and device of air conditioner and computer readable storage medium

Abstract

The invention discloses a defrosting control method and device of an air conditioner and a computer readable storage medium. The method comprises the steps that after the air conditioner exits from the current defrosting stage, the current average outer pipe temperature of an outer pipe within the preset duration is obtained; the first duration of the air conditioner in the first defrosting stage, the second duration of the air conditioner in the second defrosting stage, the first interval duration between quitting the first defrosting stage and entering the second defrosting stage and the second interval duration between quitting the second defrosting stage and entering the current defrosting stage are obtained; the current average outer pipe temperature is adjusted according to the obtained duration, and the current defrosting condition is obtained; and when the current outer pipe temperature reaches the current defrosting condition, the air conditioner is controlled to execute defrosting starting operation or defrosting stopping operation. The technical problem that in the related technology, when a traditional defrosting control method is adopted for defrosting the air conditioner, it is not considered that the defrosting condition can change along with operation of the air conditioner, and consequently the defrosting effect is poor is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliance control, and in particular to a defrost control method and device for an air conditioner, and a computer-readable storage medium. Background Art

[0002] The traditional defrosting method of the air conditioner is often tested and determined based on the standard working conditions and standard installation methods in the laboratory. However, the installation environments in which the air conditioners are actually used vary greatly, resulting in the preset defrosting entry and exit conditions being unable to effectively achieve the purpose of rapid defrosting and failing to save energy. Although the prior art provides some methods for solving the problem of long defrosting cycles by adjusting the logic in the defrosting process, it only reduces the time for mode switching, does not effectively control the parameters in the defrosting process, and has certain limitations in reducing the time for ineffective heating.

[0003] The existing defrosting methods have the following main shortcomings: 1) The traditional defrosting control method may cause misjudgment due to changes in external temperature, humidity, etc., causing the air conditioner to frequently enter and exit the defrosting state, which not only affects the heating effect of the air conditioner, but also may increase energy consumption and equipment wear; 2) In order to avoid the uncomfortable experience of customers caused by the long defrosting time, a maximum defrosting time limit is generally set, and the unreasonable setting of the defrosting entry conditions will result in the inability to defrost completely within the maximum defrosting time limit. After a long period of accumulation, the frost layer will become thicker and thicker, and the frost will not melt eventually, affecting reliability; 3) During the defrosting process, the equipment needs to consume a lot of electricity, and the unreasonable defrosting entry and exit conditions will reduce the operating efficiency of the equipment and increase energy consumption.

[0004] With regard to the problem that the defrosting conditions may change with the operation of the air conditioner when the air conditioner is defrosted using the traditional defrost control method in the above-mentioned related technologies, resulting in poor defrosting effect, no effective solution has been proposed so far. Summary of the invention

[0005] The embodiments of the present invention provide a defrost control method and device for an air conditioner, and a computer-readable storage medium, so as to at least solve the technical problem in the related art that when a traditional defrost control method is used to defrost an air conditioner, the defrost conditions will not be considered to change with the operation of the air conditioner, resulting in a poor defrost effect.

[0006] According to one aspect of an embodiment of the present invention, a defrost control method for an air conditioner is provided, comprising: after determining that the air conditioner exits a current defrost stage, obtaining a current average outer tube temperature of an outer tube in the air conditioner within a predetermined time period, wherein the current defrost stage is any defrost stage other than a first defrost stage and a second defrost stage during the operation of the air conditioner; obtaining a first time period that the air conditioner is in the first defrost stage, a second time period that the air conditioner is in the second defrost stage, a first interval time period between the air conditioner exiting the first defrost stage and entering the second defrost stage, and a second interval time period between the air conditioner exiting the second defrost stage and entering the current defrost stage, wherein the second defrost stage is a first time period before the current defrost stage. A defrost stage, wherein the first defrost stage is the previous defrost stage of the second defrost stage; the value of the current average outer tube temperature is adjusted according to the first time length, the second time length, the first interval time length and the second interval time length according to the first preset rule to obtain the current defrost condition of the air conditioner, wherein the first preset rule is a rule for updating the current defrost condition of the air conditioner after the air conditioner exits the current defrost stage; when the current outer tube temperature of the outer tube pipeline reaches the current defrost condition, the air conditioner is controlled to perform a defrost start operation or a defrost stop operation, wherein the current outer tube temperature is the current temperature obtained by collecting the outer tube pipeline at a predetermined time interval during the operation of the air conditioner.

[0007] Optionally, the defrost control method of the air conditioner also includes: when the first defrost stage is the initialization frost stage, obtaining a first average outer tube temperature of the outer tube within the predetermined time period after the air conditioner exits the first defrost stage, wherein the initialization frost stage is the first defrost stage after the air conditioner is started; updating the initialization frost condition of the air conditioner according to the first average outer tube temperature and a second preset rule to obtain a first defrost condition, wherein the second preset rule is a rule for updating the current defrost condition of the air conditioner after the air conditioner exits the initialization frost stage or exits the target second defrost stage. The target second defrost stage is the defrost stage after the initialization frost stage, and the initialization frost condition includes the conditions for the air conditioner to enter and exit the initialization frost stage; when the first defrost stage is the initialization frost stage, the second average outer tube temperature of the outer tube pipeline within the predetermined time after the air conditioner exits the second defrost stage is obtained; the first defrost condition of the air conditioner is updated for the first time according to the second average outer tube temperature and the second preset rule to obtain the second defrost condition; and the second defrost condition is determined to be the defrost condition before the air conditioner enters the first current defrost stage.

[0008] Optionally, before the initialization frost condition of the air conditioner is updated according to the second preset rule based on the first average external tube temperature to obtain the first defrost condition, the defrost control method of the air conditioner also includes: after the air conditioner is started, obtaining the historical operation record of the air conditioner; when the historical operation record indicates that the air conditioner is in a power-off state before starting, determining that the initialization frost condition is a preset defrost condition; when the historical operation record indicates that the air conditioner is in a standby state before starting, determining that the initialization frost condition is the last historical defrost condition, wherein the last historical defrost condition is the last defrost condition of the air conditioner before entering the standby state.

[0009] Optionally, the value of the current average outer tube temperature is adjusted according to the first time length, the second time length, the first interval time length and the second interval time length according to the first preset rule to obtain the current defrost condition of the air conditioner, including: comparing the first interval time length with the second interval time length to obtain a first comparison result; calculating the difference between the first time length and the second time length to obtain the defrost time deviation; comparing the defrost time deviation with a deviation threshold to obtain a second comparison result; comparing the second time length with a time threshold to obtain a third comparison result; adjusting the value of the current average outer tube temperature according to the first comparison result, the second comparison result and the third comparison result according to the first preset rule to obtain the current defrost condition of the air conditioner.

[0010] Optionally, the current defrost condition includes a current defrost entry condition and a current defrost exit condition, and the value of the current average outer tube temperature is adjusted according to the first preset rule according to the first comparison result, the second comparison result and the third comparison result to obtain the current defrost condition of the air conditioner, including: when the first comparison result indicates that the first interval duration is not greater than the second interval duration, if the second comparison result indicates that the defrost duration deviation is not greater than the deviation threshold, then determining the current defrost entry condition as: the current outer tube temperature is not greater than a first target threshold value obtained by subtracting the current average outer tube temperature from a first preset temperature value, and determining the current defrost exit condition as: the current outer tube temperature is greater than a second target threshold value obtained by adding the current average outer tube temperature to a second preset temperature value, wherein the first preset temperature value is a temperature value for adjusting the value of the current average outer tube temperature when determining the current defrost entry condition, and the second preset temperature value is a temperature value for adjusting the value of the current average outer tube temperature when determining the current defrost exit condition. the temperature value adjusted by the numerical value of the average outer tube temperature; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is less than the time threshold, then the current defrost entry condition is determined as: the current average outer tube temperature is not greater than the third target threshold obtained by adding the first target threshold to the first preset temperature compensation value, and the current defrost exit condition is determined as: the current outer tube temperature is greater than the second target threshold; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is not less than the time threshold, then the current defrost entry condition is determined as: the current average outer tube temperature is not greater than the fourth target threshold obtained by adding the first target threshold to the second preset temperature compensation value, and the current defrost exit condition is determined as: the current average outer tube temperature is greater than the fifth target threshold obtained by adding the second target threshold to the first preset temperature compensation value, wherein the second preset temperature compensation value is greater than the first preset temperature compensation value.

[0011] Optionally, the current defrost condition includes a current defrost entry condition and a current defrost exit condition. The value of the current average outer tube temperature is adjusted according to the first preset rule based on the first comparison result, the second comparison result and the third comparison result to obtain the current defrost condition of the air conditioner, including: when the first comparison result indicates that the first interval duration is greater than the second interval duration, if the second comparison result indicates that the defrost duration deviation is not greater than the deviation threshold, the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the sixth target threshold obtained by subtracting the first target threshold from the first preset temperature compensation value, and the current defrost exit condition is determined to be: the current average outer tube temperature is greater than the second target threshold plus the third preset temperature compensation value. the seventh target threshold obtained by subtracting the first preset temperature compensation value; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is less than the time threshold, then the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the sixth target threshold, and the current defrost exit condition is determined to be: the current outer tube temperature is greater than the second target threshold; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is not less than the time threshold, then the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the fourth target threshold, and the current defrost exit condition is determined to be: the current outer tube temperature is greater than the second target threshold.

[0012] Optionally, the current defrost condition includes a current defrost entry condition and a current defrost exit condition, the current outer tube temperature includes a first current outer tube temperature and a second current outer tube temperature, and when the current outer tube temperature of the outer tube pipeline reaches the current defrost condition, the air conditioner is controlled to perform a defrost start operation or a defrost stop operation, including: after the air conditioner exits the current defrost stage, the first current outer tube temperature of the outer tube pipeline is obtained at the predetermined time interval; when the current outer tube temperature reaches the current defrost entry condition, the air conditioner is controlled to perform the defrost start operation to enter a target defrost stage, wherein the target defrost stage is the defrost stage after the current defrost stage; during the operation of the air conditioner in the target defrost stage, the second current outer tube temperature of the outer tube pipeline is obtained at the predetermined time interval; when the second current outer tube temperature reaches the current defrost exit condition, the air conditioner is controlled to perform a defrost stop operation.

[0013] According to another aspect of an embodiment of the present invention, a defrost control device for an air conditioner is provided, comprising: a first acquisition unit, for acquiring, after determining that the air conditioner exits a current defrost stage, a current average outer tube temperature of an outer tube in the air conditioner within a predetermined time period, wherein the current defrost stage is any one of the defrost stages other than the first defrost stage and the second defrost stage during the operation of the air conditioner; a second acquisition unit, for acquiring a first time period when the air conditioner is in the first defrost stage, a second time period when the air conditioner is in the second defrost stage, a first interval time period between the air conditioner exiting the first defrost stage and entering the second defrost stage, and a second interval time period between the air conditioner exiting the second defrost stage and entering the current defrost stage, wherein the second defrost stage is the time period of the current defrost stage. The previous defrost stage, the first defrost stage is the previous defrost stage of the second defrost stage; a third acquisition unit, used to adjust the value of the current average outer tube temperature according to the first time length, the second time length, the first interval time length and the second interval time length according to the first preset rule, to obtain the current defrost condition of the air conditioner, wherein the first preset rule is a rule for updating the current defrost condition of the air conditioner after the air conditioner exits the current defrost stage; a control unit, used to control the air conditioner to perform a defrost start operation or a defrost stop operation when the current outer tube temperature of the outer tube pipeline reaches the current defrost condition, wherein the current outer tube temperature is the current temperature obtained by collecting the outer tube pipeline at a predetermined time interval during the operation of the air conditioner.

[0014] Optionally, the defrost control device of the air conditioner also includes: a fourth acquisition unit, used to obtain, when the first defrost stage is an initialization frost stage, a first average outer tube temperature of the outer tube pipeline within the predetermined time period after the air conditioner exits the first defrost stage, wherein the initialization frost stage is the first defrost stage after the air conditioner is started; a fifth acquisition unit, used to update the initialization frost condition of the air conditioner according to a second preset rule based on the first average outer tube temperature to obtain a first defrost condition, wherein the second preset rule is a rule for updating the current defrost condition of the air conditioner after the air conditioner exits the initialization frost stage or exits the target second defrost stage, and the target first defrost condition is obtained. The second defrost stage is the defrost stage after the initialization frost stage, and the initialization frost condition includes the conditions for the air conditioner to enter and exit the initialization frost stage; the sixth acquisition unit is used to obtain the second average outer tube temperature of the outer tube within the predetermined time after the air conditioner exits the second defrost stage when the first defrost stage is the initialization frost stage; the seventh acquisition unit is used to update the first defrost condition of the air conditioner for the first time according to the second preset rule based on the second average outer tube temperature to obtain the second defrost condition; the first determination unit is used to determine that the second defrost condition is the defrost condition before the air conditioner enters the first current defrost stage.

[0015] Optionally, the defrost control device of the air conditioner also includes: an eighth acquisition unit, used to update the initialization frost condition of the air conditioner according to the first average external tube temperature according to the second preset rule to obtain the first defrost condition, after the air conditioner is started, to acquire the historical operation record of the air conditioner; a second determination unit, used to determine that the initialization frost condition is a preset defrost condition when the historical operation record indicates that the air conditioner is in a power-off state before starting; a third determination unit, used to determine that the initialization frost condition is the last historical defrost condition when the historical operation record indicates that the air conditioner is in a standby state before starting, wherein the last historical defrost condition is the last defrost condition of the air conditioner before entering the standby state.

[0016] Optionally, the second acquisition unit includes: a first acquisition module, used to compare the first interval duration with the second interval duration to obtain a first comparison result; a second acquisition module, used to calculate the difference between the first duration and the second duration to obtain a defrost duration deviation; a third acquisition module, used to compare the defrost duration deviation with a deviation threshold to obtain a second comparison result; a fourth acquisition module, used to compare the second duration with a duration threshold to obtain a third comparison result; and a fifth acquisition module, used to adjust the value of the current average external tube temperature according to the first preset rule based on the first comparison result, the second comparison result and the third comparison result to obtain the current defrost condition of the air conditioner.

[0017] Optionally, the current defrost condition includes a current defrost entry condition and a current defrost exit condition, and the fifth acquisition module includes: a first determination submodule, which is used to determine the current defrost entry condition as follows: the current outer tube temperature is not greater than a first target threshold value obtained by subtracting the current average outer tube temperature from a first preset temperature value, and to determine the current defrost exit condition as follows: the current outer tube temperature is greater than a second target threshold value obtained by adding the current average outer tube temperature to a second preset temperature value, when the first comparison result indicates that the first interval duration is not greater than the second interval duration, and if the second comparison result indicates that the defrost duration deviation is not greater than the deviation threshold value, wherein the first preset temperature value is a temperature value for adjusting the numerical value of the current average outer tube temperature when determining the current defrost entry condition, and the second preset temperature value is a temperature value for adjusting the numerical value of the current average outer tube temperature when determining the current defrost exit condition; if the second comparison If the result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is less than the time threshold, then the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the third target threshold obtained by adding the first target threshold to the first preset temperature compensation value, and the current defrost exit condition is determined to be: the current outer tube temperature is greater than the second target threshold; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is not less than the time threshold, then the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the fourth target threshold obtained by adding the first target threshold to the second preset temperature compensation value, and the current defrost exit condition is determined to be: the current average outer tube temperature is greater than the fifth target threshold obtained by adding the second target threshold to the first preset temperature compensation value, wherein the second preset temperature compensation value is greater than the first preset temperature compensation value.

[0018] Optionally, the current defrost condition includes a current defrost entry condition and a current defrost exit condition, and the fifth acquisition module includes: a second determination submodule, which is used to determine the current defrost entry condition as follows: the current average outer tube temperature is not greater than the sixth target threshold value obtained by subtracting the first target threshold value from the first preset temperature compensation value, if the first comparison result indicates that the first interval duration is greater than the second interval duration, and if the second comparison result indicates that the defrost duration deviation is not greater than the deviation threshold, and determine the current defrost exit condition as follows: the current average outer tube temperature is greater than the seventh target threshold value obtained by subtracting the second target threshold value from the first preset temperature compensation value; if the second comparison If the result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is less than the time threshold, then the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the sixth target threshold, and the current defrost exit condition is determined to be: the current outer tube temperature is greater than the second target threshold; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is not less than the time threshold, then the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the fourth target threshold, and the current defrost exit condition is determined to be: the current outer tube temperature is greater than the second target threshold.

[0019] Optionally, the current defrost condition includes a current defrost entry condition and a current defrost exit condition, the current outer tube temperature includes a first current outer tube temperature and a second current outer tube temperature, and the control unit includes: a sixth acquisition module, used to acquire the first current outer tube temperature of the outer tube pipeline at the predetermined time interval after the air conditioner exits the current defrost stage; a first control module, used to control the air conditioner to perform the defrost start operation to enter a target defrost stage when the current outer tube temperature reaches the current defrost entry condition, wherein the target defrost stage is the defrost stage after the current defrost stage; a seventh acquisition module, used to acquire the second current outer tube temperature of the outer tube pipeline at the predetermined time interval during the operation of the air conditioner in the target defrost stage; and a second control module, used to control the air conditioner to perform the defrost stop operation when the second current outer tube temperature reaches the current defrost exit condition.

[0020] According to another aspect of the embodiments of the present invention, a defrost control system for an air conditioner is provided. The defrost control system for the air conditioner uses any one of the above-mentioned defrost control methods for the air conditioner.

[0021] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is further provided, wherein the computer-readable storage medium includes a stored program, wherein the program executes any one of the above-mentioned defrost control methods for an air conditioner.

[0022] According to another aspect of an embodiment of the present invention, a processor is further provided, the processor being used to run a program, wherein the program executes any one of the above-mentioned defrost control methods for an air conditioner when running.

[0023] According to another aspect of an embodiment of the present invention, a computer program product is provided, comprising computer instructions, wherein when the computer instructions are executed by a processor, any one of the above-mentioned defrost control methods for an air conditioner is executed.

[0024] In an embodiment of the present invention, after determining that the air conditioner exits the current defrost stage, the current average outer tube temperature of the outer tube in the air conditioner within a predetermined time length is obtained, wherein the current defrost stage is any defrost stage other than the first defrost stage and the second defrost stage during the operation of the air conditioner; the first time length that the air conditioner is in the first defrost stage, the second time length that the air conditioner is in the second defrost stage, the first interval time length between the air conditioner exiting the first defrost stage and entering the second defrost stage, and the second interval time length between the air conditioner exiting the second defrost stage and entering the current defrost stage are obtained, wherein the second defrost stage is the defrost stage before the current defrost stage. , the first defrost stage is the previous defrost stage of the second defrost stage; the value of the current average outer tube temperature is adjusted according to the first time length, the second time length, the first interval time length and the second interval time length according to the first preset rule to obtain the current defrost condition of the air conditioner, wherein the first preset rule is a rule for updating the current defrost condition of the air conditioner after the air conditioner exits the current defrost stage; when the current outer tube temperature of the outer tube pipeline reaches the current defrost condition, the air conditioner is controlled to perform a defrost start operation or a defrost stop operation, wherein the current outer tube temperature is the current temperature obtained by collecting the outer tube pipeline at a predetermined time interval during the operation of the air conditioner. Through the above technical scheme, the purpose of iteratively updating the defrost conditions by monitoring the defrosting effect of the air conditioner is achieved, so as to more accurately judge whether it is necessary to start and exit defrosting. The technical effect of automatically updating the parameters of the air conditioner in the defrosting process through self-learning and updating the defrost conditions in real time with the operation of the air conditioner is achieved, thereby improving the defrost performance of the air conditioner and avoiding ineffective defrosting. The technical problem that the traditional defrost control method used in the related technology to defrost the air conditioner without taking into account that the defrost conditions will change with the operation of the air conditioner, resulting in poor defrosting effect is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 It is a hardware structure block diagram of a mobile terminal of a defrost control method for an air conditioner according to an embodiment of the present invention;

[0027] Figure 2 is a flow chart of a defrost control method for an air conditioner according to an embodiment of the present invention;

[0028] Figure 3 is a flow chart of an optional defrost control method for an air conditioner according to an embodiment of the present invention;

[0029] Figure 4 2 is a schematic diagram of a defrost control device for an air conditioner according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0032] As introduced in the background technology, the conventional defrost control method used in the related art to defrost the air conditioner does not take into account that the defrost conditions will change with the operation of the air conditioner, resulting in poor defrost effect. In view of the above defects, a defrost control method and device for an air conditioner and a computer-readable storage medium are provided in the embodiments of the present invention.

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] The method embodiments provided in the embodiments of the present invention can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 FIG. 1 is a hardware structure block diagram of a mobile terminal of a defrosting control method for an air conditioner according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0035] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the defrost control method of the air conditioner in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, the above method is implemented. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the above network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0036] According to an embodiment of the present invention, a method embodiment of a defrost control method for an air conditioner is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0037] Figure 2 : is a flow chart of a defrost control method for an air conditioner according to an embodiment of the present invention. Figure 2 As shown, the method comprises the following steps:

[0038] Step S202, after determining that the air conditioner exits the current defrost stage, obtain the current average outer tube temperature of the outer tube in the air conditioner within a predetermined time period, wherein the current defrost stage is any defrost stage except the first defrost stage and the second defrost stage during the operation of the air conditioner.

[0039] In this embodiment, after the air conditioner exits the current defrost stage, the temperature of the outer pipe of the air conditioner can be monitored, and its average temperature during a period of operation of the air conditioner can be obtained to provide a data basis for subsequent updating of the defrost conditions.

[0040] Step S204, obtaining the first time duration that the air conditioner is in the first defrost stage, the second time duration that the air conditioner is in the second defrost stage, the first interval duration between the air conditioner exiting the first defrost stage and entering the second defrost stage, and the second interval duration between the air conditioner exiting the second defrost stage and entering the current defrost stage, wherein the second defrost stage is the previous defrost stage of the current defrost stage, and the first defrost stage is the previous defrost stage of the second defrost stage.

[0041] In this embodiment, the defrost conditions of the next defrost stage of the air conditioner can be updated with three defrost stages as a cycle. The defrost effects of the air conditioner are analyzed by analyzing the defrost duration of the first two defrost stages and the interval duration between exiting defrost and entering defrost again, so as to update the defrost conditions of the air conditioner.

[0042] It should be noted that, since the analysis of the defrost entry conditions and defrost exit conditions in the first three defrost stages after the air conditioner is turned on does not meet the above update conditions, other methods can be selected to update the defrost conditions of the air conditioner.

[0043] Step S206, adjust the value of the current average external tube temperature according to the first time length, the second time length, the first interval time length and the second interval time length according to the first preset rule to obtain the current defrost condition of the air conditioner, wherein the first preset rule is a rule for updating the current defrost condition of the air conditioner after the air conditioner exits the current defrost stage.

[0044] In this embodiment, the first duration and the second duration, and the first interval duration and the second interval duration can be compared respectively to analyze the defrost effect of the air conditioner according to the comparison result, and the defrost condition of the air conditioner can be updated based on this.

[0045] Step S208, when the current outer tube temperature of the outer tube pipeline reaches the current defrost condition, control the air conditioner to perform a defrost start operation or a defrost stop operation, wherein the current outer tube temperature is the current temperature obtained by collecting the outer tube pipeline at a predetermined time interval during the operation of the air conditioner.

[0046] In this embodiment, the current temperature of the outer pipe in the air conditioner can be monitored and obtained in real time. When the entry condition of the current defrost condition is reached, the air conditioner is controlled to start the defrost operation. When the exit condition of the current defrost condition is reached, the air conditioner is controlled to stop the defrost operation to exit the current defrost stage. At the same time, the defrost conditions of the air conditioner are further updated in combination with the operating status of the air conditioner in this defrost stage.

[0047] It should be noted that during the operation of the air conditioner, it is necessary to monitor and obtain the current temperature of the outer pipe in real time, so as to determine whether it is necessary to control the air conditioner to perform a defrosting operation or stop defrosting according to the real-time temperature.

[0048] As can be seen from the above, through the technical solution provided by the above embodiment of the present invention, after determining that the air conditioner has exited the current defrost stage, the current average outer tube temperature of the outer tube pipeline in the air conditioner within a predetermined time length can be obtained, wherein the current defrost stage is any defrost stage other than the first defrost stage and the second defrost stage during the operation of the air conditioner; a first time length when the air conditioner is in the first defrost stage, a second time length when the air conditioner is in the second defrost stage, a first interval time length between the air conditioner exiting the first defrost stage and entering the second defrost stage, and a second interval time length between the air conditioner exiting the second defrost stage and entering the current defrost stage are obtained, wherein the second defrost stage is the previous defrost stage of the current defrost stage, and the first defrost stage is the previous defrost stage of the second defrost stage; according to the first time length, the second time length, the first interval time length and the second interval time length, the first predetermined time length is calculated according to the first time length, the second time length, the first interval time length and the second interval time length. A rule is set to adjust the value of the current average outer tube temperature to obtain the current defrost condition of the air conditioner, wherein the first preset rule is a rule for updating the current defrost condition of the air conditioner after the air conditioner exits the current defrost stage; when the current outer tube temperature of the outer tube reaches the current defrost condition, the air conditioner is controlled to perform a defrost start operation or a defrost stop operation, wherein the current outer tube temperature is the current temperature obtained by collecting the outer tube at a predetermined time interval during the operation of the air conditioner, thereby achieving the purpose of continuously iteratively updating the defrost condition based on the effect of monitoring the defrost of the air conditioner so as to more accurately judge whether it is necessary to start defrost and exit defrost, realizing the technical effect of automatically updating the parameters of the air conditioner in the defrost process through self-learning, and updating the defrost conditions in real time as the air conditioner runs, thereby improving the defrost performance of the air conditioner and avoiding invalid defrost.

[0049] Therefore, the technical solution provided by the above-mentioned embodiment of the present invention solves the technical problem in the related art that when using the traditional defrost control method to defrost the air conditioner, it does not take into account that the defrost conditions will change with the operation of the air conditioner, resulting in poor defrost effect.

[0050] Combine the following Figure 3 The above embodiments of the present invention are described in detail. Figure 3 is a flow chart of an optional defrost control method for an air conditioner according to an embodiment of the present invention.

[0051] According to the above embodiment of the present invention, the defrost control method of the air conditioner also includes: when the first defrost stage is the initialization frost stage, obtaining a first average outer tube temperature of the outer tube within a predetermined time after the air conditioner exits the first defrost stage, wherein the initialization frost stage is the first defrost stage after the air conditioner is started; updating the initialization frost condition of the air conditioner according to the second preset rule based on the first average outer tube temperature to obtain the first defrost condition, wherein the second preset rule is a rule for updating the current defrost condition of the air conditioner after the air conditioner exits the initialization frost stage or exits the target second defrost stage, the target second defrost stage is the defrost stage after the initialization frost stage, and the initialization frost condition includes the conditions for the air conditioner to enter the initialization frost stage and exit the initialization frost stage; when the first defrost stage is the initialization frost stage, obtaining a second average outer tube temperature of the outer tube within a predetermined time after the air conditioner exits the second defrost stage; updating the first defrost condition of the air conditioner for the first time according to the second average outer tube temperature according to the second preset rule to obtain the second defrost condition; determining the second defrost condition to be the defrost condition before the air conditioner enters the first current defrost stage.

[0052] As above Figure 3 As shown, after the air conditioner is started, it is necessary to first determine whether the air conditioner is running in the heating mode. When the air conditioner is running in the heating mode, the defrosting operation is required. Then, the defrosting conditions of the air conditioner are updated in real time according to the method provided in the above embodiment of the present invention; secondly, after the air conditioner is started, when entering the defrost mode for the first time, the defrost entry condition and the defrost exit condition for entering the first defrost stage (i.e., the initial defrost stage) shall be based on the conditions preset in the program; after the air conditioner exits the first defrost stage, the outdoor pipe temperature is detected after the defrost exits and the normal heating is stably operated for a period of time (the recommended value range is: 5-15min) (the recommended value range of the detection period is: 1-10min) and the average value T0 (i.e., The first average outer tube temperature T0 is detected, and the defrost entry condition of the air conditioner can be updated to: Touter tube ≤ T0-first preset value (the recommended value range is: 3-8℃), and the defrost exit condition is updated to: Touter tube>T0+second preset value (the recommended value range is: 0-6℃). The defrost condition obtained here is the entry and exit condition of the second defrost stage of the air conditioner; the frosting of the condenser is accurately judged by the drop in outdoor tube temperature, and then the defrost exit condition is updated to a tube temperature that is a certain value higher than the normal tube temperature without frost, so as to avoid the situation where there is no frost in reality but the defrost exit condition is set unreasonably, resulting in invalid defrosting, shortening the defrost cycle, and improving the low-temperature heating capacity and comfort.

[0053] In the embodiment provided by the present invention, the air conditioner in the room is in heating mode, and then the system can obtain the average condensing temperature T0 through the outdoor temperature sensing package that has allowed the air conditioner to exit defrosting and operate normally for a period of time. Then, based on the average condensing temperature T0, the system can conveniently determine the drop in temperature of the condenser after frosting, and accurately define the degree to which the pipe temperature rises after defrosting when defrosting is actually completed, thereby shortening the defrost cycle.

[0054] In addition, after the air conditioner exits the first defrost stage, the outdoor pipe temperature after the air conditioner exits the first defrost and runs normally for a period of time can be detected (the recommended value range of the detection cycle is: 1-10min) and the average value T1 (the second average outer pipe temperature) can be calculated. According to the detected second average outer pipe temperature T1, the defrost conditions of the air conditioner can be updated again, and the defrost entry conditions can be updated to: Touter pipe ≤ T1-first preset value, and the defrost exit conditions can be updated to: Touter pipe>T1+second preset value. The defrost conditions obtained here are the defrost entry and exit conditions of the third defrost stage of the air conditioner (i.e., the first current defrost stage in the above-mentioned embodiment of the present invention).

[0055] It should be noted that the first preset value here is the first preset temperature value in the embodiment of the present invention, and the second preset value here is the second preset temperature value in the embodiment of the present invention.

[0056] According to the above embodiment of the present invention, before the initialization frost condition of the air conditioner is updated according to the second preset rule based on the first average external tube temperature to obtain the first defrost condition, the defrost control method of the air conditioner also includes: after the air conditioner is started, obtaining the historical operation record of the air conditioner; when the historical operation record indicates that the air conditioner is in a power-off state before starting, determining the initialization frost condition to be the preset defrost condition; when the historical operation record indicates that the air conditioner is in a standby state before starting, determining the initialization frost condition to be the last historical defrost condition, wherein the last historical defrost condition is the last defrost condition of the air conditioner before entering the standby state.

[0057] Specifically, after the air conditioner is started, it is first determined whether it is the first time to be turned on and run after a power outage. If the air conditioner is turned on for the first time, it means that the air conditioner is most likely newly installed or has not been turned on for a long time and is restarted. Therefore, the entry and exit conditions of the defrost are based on the conditions preset by the program, and then re-learned and iterated; if the air conditioner is turned off and then on by remote control, the previous operating parameters of the air conditioner will be memorized in the main board, and the entry and exit conditions of the air conditioner's first defrost mode after it is turned off and then on by remote control will be based on the parameters before shutdown.

[0058] The defrost entry conditions and defrost exit conditions preset by the program can be as follows: 1) Defrost entry conditions: ① When Touter loop ≥ -8℃ and any of the following conditions is met for 1 consecutive minute, the air conditioner is controlled to enter defrost: a. Touter loop ≥ 5℃, Touter tube ≤ -2℃; b. 0℃ ≤ Touter loop < 5℃, Touter tube ≤ -6℃; c. -5℃ ≤ Touter loop < 0℃, Touter tube -10℃; d. -10℃ ≤ Touter loop < -5℃, Touter tube ≤ Touter loop -6℃; ② When Touter loop < -10℃ and Touter tube < Touter loop -6℃ (the minimum is -20℃) for 1 consecutive minute, the air conditioner is controlled to enter defrost; 2) Defrost exit conditions: When the temperature of the outer tube rises by 10℃ compared with the tube temperature when entering defrost, the air conditioner is controlled to exit defrost.

[0059] It should be noted that after the air conditioner is started, the defrost conditions of the first defrost stage can be the conditions preset by the program or the last defrost conditions recorded in the air conditioner system before starting up; the defrost conditions of the second defrost stage and the third defrost stage can be based on the defrost conditions updated in the above-mentioned embodiment of the present invention; and for the defrost conditions of the fourth defrost stage of the air conditioner and each defrost stage before the air conditioner is shut down or exits the heating mode, the defrost effect of the air conditioner can be analyzed based on the defrost time of the first two defrost stages of the three defrost stages before the defrost stage, and the two interval times between exiting defrost and re-entering defrost.

[0060] According to the above embodiment of the present invention, the value of the current average outer tube temperature is adjusted according to the first time length, the second time length, the first interval time length and the second interval time length according to the first preset rule to obtain the current defrost condition of the air conditioner, including: comparing the first interval time length and the second interval time length to obtain a first comparison result; calculating the difference between the first time length and the second time length to obtain the defrost time deviation; comparing the defrost time deviation with the deviation threshold to obtain a second comparison result; comparing the second time length with the time threshold to obtain a third comparison result; adjusting the value of the current average outer tube temperature according to the first comparison result, the second comparison result and the third comparison result according to the first preset rule to obtain the current defrost condition of the air conditioner.

[0061] Specifically, as above Figure 3 As shown, when the defrost conditions of the next defrost stage of the air conditioner are updated with three defrost stages as one cycle, the defrost time of the first two defrost stages (the defrost time of the first defrost stage T 化 The defrost duration T of the second defrost stage ′ 化), compare the defrost time of the second defrost stage with the maximum defrost time limit (i.e., time threshold), and compare the time period Δt1 (i.e., the first interval time) between the air conditioner exiting the first defrost stage and entering the second defrost stage, and the time period Δt2 (i.e., the second interval time) between the air conditioner exiting the second defrost stage and entering the third defrost stage, so as to analyze the defrost effect of the air conditioner according to the corresponding comparison results, and then update the defrost entry condition and exit condition of the next defrost stage of the air conditioner. When updating, the average value T of the outer tube temperature after the air conditioner exits the previous defrost stage after running for a period of time is monitored and adjusted numerically to obtain the corresponding defrost condition.

[0062] In a specific embodiment of the present invention, the current defrost condition includes the current defrost entry condition and the current defrost exit condition, and the current average outer tube temperature is adjusted according to the first preset rule according to the first comparison result, the second comparison result and the third comparison result to obtain the current defrost condition of the air conditioner, including: when the first comparison result indicates that the first interval duration is not greater than the second interval duration, if the second comparison result indicates that the defrost duration deviation is not greater than the deviation threshold, then the current defrost entry condition is determined to be: the current outer tube temperature is not greater than the first target threshold obtained by subtracting the current average outer tube temperature from the first preset temperature value, and the current defrost exit condition is determined to be: the current outer tube temperature is greater than the second target threshold obtained by adding the current average outer tube temperature to the second preset temperature value, wherein the first preset temperature value is the temperature value for adjusting the current average outer tube temperature when determining the current defrost entry condition, and the second preset temperature value is the temperature value for determining the current defrost exit condition. The temperature value for adjusting the current average outer tube temperature when the condition is met; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is less than the time threshold, then the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the third target threshold obtained by adding the first target threshold to the first preset temperature compensation value, and the current defrost exit condition is determined to be: the current outer tube temperature is greater than the second target threshold; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is not less than the time threshold, then the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the fourth target threshold obtained by adding the first target threshold to the second preset temperature compensation value, and the current defrost exit condition is determined to be: the current average outer tube temperature is greater than the fifth target threshold obtained by adding the second target threshold to the first preset temperature compensation value, wherein the second preset temperature compensation value is greater than the first preset temperature compensation value.

[0063] Specifically, if Δt1≤Δt2 and |T ′ 化 -T 化|≤2min, the defrost entry condition corresponding to the outdoor ambient temperature is: Touter tube ≤T-the first preset value, and the defrost exit condition is: Touter tube>T+the second preset value; this indicates that after the defrost entry and exit conditions are controlled according to the parameters updated for the second time, the heating operation cycle becomes longer, which effectively delays the time to enter the defrost, and the comfort effect is better, while the defrost time does not change much, indicating that after delaying the time to enter the defrost, the thickness and area of ​​frost do not change much. There is no problem in using this defrost entry and exit conditions on a subsequent basis, and further parameter adjustment is required.

[0064] If Δt1≤Δt2 and 2min<|T ′ 化 -T 化 | and T ′ 化 < the maximum defrost time limit (the recommended value range is: 8-15min), then the defrost entry condition under the corresponding outdoor ambient temperature conditions is: Touter tube ≤ T-first preset value + compensation value ΔT1 (that is, the first preset temperature compensation value, the recommended value range is: 1-5℃), and the defrost exit condition is: Touter tube> T+second preset value; this shows that after the defrost entry condition and exit condition are controlled according to the parameters updated for the second time, the heating operation cycle becomes longer, which effectively delays the time to enter the defrost, and the comfort effect is better, and the defrost time is lengthened, but the defrost time does not reach the maximum defrost time limit, which means that after the delay is taken into account in the defrost time, the thickness and area of ​​the frost become larger, and the defrost entry temperature can be increased to allow the air conditioner to enter the defrost in advance, and enter the defrost first when the frost is thinner to improve the defrost efficiency.

[0065] If Δt1≤Δt2 and 2min<|T ′ 化 -T 化 | and T ′ 化≥ the maximum defrost time limit, the defrost entry condition under the corresponding outdoor ambient temperature condition is: Texternal tube ≤ T-first preset value + compensation value ΔT2 (i.e. the second preset temperature compensation value, the recommended value range is: 1-5℃, but in the parameter setting ΔT2>ΔT1), and the defrost exit condition is: Texternal tube>T+second preset value+compensation value ΔT1; this indicates that after the defrost entry condition and exit condition are controlled according to the parameters updated for the second time, the heating operation cycle becomes longer, which effectively delays the time to enter the defrost, and the comfort effect is better, while the defrost time is prolonged, and the defrost time reaches the maximum defrost time limit, indicating that after the delay is included in the defrost time, the thickness and area of ​​frost become larger, and the defrost may not be clean, so it is necessary to increase the defrost entry temperature to allow the air conditioner to enter the defrost in advance, and enter the defrost first when the frost is thinner. At the same time, in order to avoid the condenser from being thoroughly defrosted after cumulative defrosting due to unclean defrosting, it is necessary to increase the pipe temperature condition when the defrost exits to make the defrost more sufficient.

[0066] In another specific embodiment of the present invention, the current defrost condition includes a current defrost entry condition and a current defrost exit condition, and the value of the current average outer tube temperature is adjusted according to the first preset rule according to the first comparison result, the second comparison result and the third comparison result to obtain the current defrost condition of the air conditioner, including: when the first comparison result indicates that the first interval duration is greater than the second interval duration, if the second comparison result indicates that the defrost duration deviation is not greater than the deviation threshold, the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the sixth target threshold obtained by subtracting the first preset temperature compensation value from the first target threshold, and the current defrost exit condition is determined to be: the current average outer tube temperature is less ... average outer tube temperature is less than the sixth target threshold obtained by subtracting the first preset temperature compensation value from the first target threshold, and the current average outer tube temperature is less than the sixth target threshold obtained by subtracting the first preset temperature compensation value from the first target threshold, and the current average outer tube temperature is less than the sixth target threshold obtained by subtracting the first preset temperature compensation value from The temperature is greater than the seventh target threshold value obtained by subtracting the second target threshold value from the first preset temperature compensation value; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is less than the time threshold, then the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the sixth target threshold, and the current defrost exit condition is determined to be: the current outer tube temperature is greater than the second target threshold; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is not less than the time threshold, then the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the fourth target threshold, and the current defrost exit condition is determined to be: the current outer tube temperature is greater than the second target threshold.

[0067] Specifically, if Δt1>Δt2 and |T ′ 化 -T 化|≤2min, then the defrost entry condition under the corresponding outdoor ambient temperature is: Texternal tube ≤T-first preset value (recommended value range: 3-8℃)-compensation value ΔT1, and the defrost exit condition is: Texternal tube>T+second preset value-compensation value ΔT1; this indicates that after the defrost entry and exit conditions are controlled according to the second updated parameters, the heating operation cycle becomes shorter, the time to enter the defrost becomes shorter, the comfort effect becomes worse, and the defrost time does not change much, indicating that even after entering the defrost in advance, the thickness and area of ​​frost do not change much, so you can try to lower the defrost entry temperature to delay the air conditioner from entering the defrost, and enter the defrost when the frost is slightly thicker to improve comfort. You can also lower the defrost exit temperature and reduce the defrost time to further improve the comfort of the product.

[0068] If Δt1>Δt2 and 2min<|T ′ 化 -T 化 | and T ′ 化 < the maximum defrost time limit, then the defrost entry condition under the corresponding outdoor ambient temperature condition is: Touter tube ≤ T-first preset value-compensation value ΔT1(, and the defrost exit condition is: Touter tube>T+second preset value; this indicates that after the defrost entry condition and exit condition are controlled according to the second updated parameters, the heating operation cycle becomes shorter, the time to enter the defrost becomes shorter, the comfort effect becomes worse, and the defrost time changes greatly, indicating that even after entering the defrost in advance, the thickness and area of ​​the frost still change greatly, indicating that the humidity of the environment at this time may become larger or the environment makes it easier to frost. In order to improve comfort, you can try to lower the defrost entry temperature to delay the air conditioner from entering the defrost, and enter the defrost when the frost is slightly thicker to improve comfort. In order to avoid unclean defrosting, the defrost exit condition remains unchanged.

[0069] If Δt1>Δt2 and 2min<|T ′ 化 -T 化 | and T ′ 化≥ the maximum defrost time limit, the defrost entry condition under the corresponding outdoor ambient temperature is: Texternal tube ≤ T-first preset value + compensation value ΔT2, and the defrost exit condition is: Texternal tube> T+second preset value; this indicates that after the defrost entry and exit conditions are controlled according to the second updated parameters, the heating operation cycle becomes shorter, the time to enter the defrost becomes shorter, and the comfort effect becomes worse. At the same time, the defrost time changes greatly, indicating that even after entering the defrost in advance, the thickness and area of ​​frost still change greatly, indicating that the humidity of the environment at this time may become larger or the environment makes it easier to frost. In order to improve reliability, you can try to increase the defrost entry temperature to let the air conditioner enter the defrost as soon as possible to prevent the thickness and area of ​​frost from increasing. At the same time, since the defrost time has reached the maximum defrost time limit, it means that the defrost time is long, and the frost may not melt. In order to avoid unclean defrosting, it is necessary to increase the pipe temperature condition when the defrost exits to make the defrost more complete.

[0070] It should be noted that the specific values ​​of the recommended values ​​involved in the above embodiments of the present invention are all optional examples, which can be selected in combination with actual conditions during actual application and are not specifically limited here.

[0071] According to the above embodiment of the present invention, the current defrost condition includes the current defrost entry condition and the current defrost exit condition, the current external tube temperature includes the first current external tube temperature and the second current external tube temperature, and when the current external tube temperature of the external tube pipeline reaches the current defrost condition, the air conditioner is controlled to perform a defrost start operation or a defrost stop operation, including: after the air conditioner exits the current defrost stage, the first current external tube temperature of the external tube pipeline is obtained at a predetermined time interval; when the current external tube temperature reaches the current defrost entry condition, the air conditioner is controlled to perform a defrost start operation to enter a target defrost stage, wherein the target defrost stage is the next defrost stage after the current defrost stage; when the air conditioner is running in the target defrost stage, the second current external tube temperature of the external tube pipeline is obtained at a predetermined time interval; when the second current external tube temperature reaches the current defrost exit condition, the air conditioner is controlled to perform a defrost stop operation.

[0072] Optionally, the first current external tube temperature and the second current external tube temperature are both external tube temperatures of the air conditioner, but are external tube temperatures at different times.

[0073] Specifically, the current temperature of the outer pipe in the air conditioner can be monitored and obtained in real time. When the entry condition of the current defrost condition is reached, the air conditioner is controlled to start the defrost operation. When the exit condition of the current defrost condition is reached, the air conditioner is controlled to stop the defrost operation to exit the current defrost stage. At the same time, the defrost conditions of the air conditioner are further updated in combination with the operating status of the air conditioner in this defrost stage.

[0074] It should be noted that during the operation of the air conditioner, it is necessary to monitor and obtain the current temperature of the outer pipe in real time, so as to determine whether it is necessary to control the air conditioner to perform a defrosting operation or stop defrosting according to the real-time temperature.

[0075] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0076] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0077] According to an embodiment of the present invention, there is also provided a defrost control device for an air conditioner for implementing the defrost control method for an air conditioner. Figure 4 Schematic diagram of a defrost control device for an air conditioner according to an embodiment of the present invention. Figure 4 As shown, the device comprises: a first acquisition unit 41, a second acquisition unit 43, a third acquisition unit 45 and a control unit 47. The defrost control device for the air conditioner is described in detail below.

[0078] The first acquisition unit 41 is used to obtain the current average outer tube temperature of the outer tube in the air conditioner within a predetermined time period after determining that the air conditioner exits the current defrost stage, wherein the current defrost stage is any defrost stage except the first defrost stage and the second defrost stage during the operation of the air conditioner.

[0079] The second acquisition unit 43 is used to obtain the first time duration that the air conditioner is in the first defrost stage, the second time duration that the air conditioner is in the second defrost stage, the first interval time between the air conditioner exiting the first defrost stage and entering the second defrost stage, and the second interval time between the air conditioner exiting the second defrost stage and entering the current defrost stage, wherein the second defrost stage is the previous defrost stage of the current defrost stage, and the first defrost stage is the previous defrost stage of the second defrost stage.

[0080] The third acquisition unit 45 is used to adjust the value of the current average outer tube temperature according to the first time length, the second time length, the first interval time length and the second interval time length according to the first preset rule to obtain the current defrost condition of the air conditioner, wherein the first preset rule is a rule for updating the current defrost condition of the air conditioner after the air conditioner exits the current defrost stage.

[0081] The control unit 47 is used to control the air conditioner to perform a defrost start operation or a defrost stop operation when the current outer tube temperature of the outer tube pipeline reaches the current defrost condition, wherein the current outer tube temperature is the current temperature obtained by collecting the outer tube pipeline at a predetermined time interval during the operation of the air conditioner.

[0082] It should be noted here that the above-mentioned first acquisition unit 41, second acquisition unit 43, third acquisition unit 45 and control unit 47 correspond to steps S202 to S208 in the above-mentioned embodiments, and the four units and the corresponding steps implement the same instances and application scenarios, but are not limited to the contents disclosed in the above-mentioned embodiments.

[0083] As can be seen from the above, in the scheme recorded in the above embodiment of the present invention, the first acquisition unit can be used to acquire the current average outer tube temperature of the outer tube pipeline in the air conditioner within a predetermined time length after determining that the air conditioner has exited the current defrost stage, wherein the current defrost stage is any defrost stage other than the first defrost stage and the second defrost stage during the operation of the air conditioner; then the second acquisition unit is used to acquire the first time length that the air conditioner is in the first defrost stage, the second time length that the air conditioner is in the second defrost stage, the first interval time length between the air conditioner exiting the first defrost stage and entering the second defrost stage, and the second interval time length between the air conditioner exiting the second defrost stage and entering the current defrost stage, wherein the second defrost stage is the previous defrost stage of the current defrost stage, and the first defrost stage is the previous defrost stage of the second defrost stage; then the third acquisition unit is used to acquire the first time length, the second time length, the first interval time length and the second interval time length according to the first time length, the second time length, the first interval time length and the second interval time length The value of the current average outer tube temperature is adjusted according to the first preset rule at intervals to obtain the current defrost condition of the air conditioner, wherein the first preset rule is a rule for updating the current defrost condition of the air conditioner after the air conditioner exits the current defrost stage; finally, the control unit is used to control the air conditioner to perform a defrost start operation or a defrost stop operation when the current outer tube temperature of the outer tube reaches the current defrost condition, wherein the current outer tube temperature is the current temperature obtained by collecting the outer tube at a predetermined time interval during the operation of the air conditioner, thereby achieving the purpose of iteratively updating the defrost conditions by monitoring the defrosting effect of the air conditioner so as to more accurately judge whether it is necessary to start defrosting and exit defrosting, realizing the technical effect of automatically updating the parameters of the air conditioner in the defrosting process through self-learning, and updating the defrost conditions in real time with the operation of the air conditioner, thereby improving the defrost performance of the air conditioner and avoiding ineffective defrosting.

[0084] Therefore, the technical solution provided by the above-mentioned embodiment of the present invention solves the technical problem in the related art that when using the traditional defrost control method to defrost the air conditioner, it does not take into account that the defrost conditions will change with the operation of the air conditioner, resulting in poor defrost effect.

[0085] In an optional embodiment of the present invention, the defrost control device of the air conditioner also includes: a fourth acquisition unit, which is used to obtain, when the first defrost stage is the initialization frost stage, a first average outer tube temperature of the outer tube pipeline within a predetermined time after the air conditioner exits the first defrost stage, wherein the initialization frost stage is the first defrost stage after the air conditioner is started; a fifth acquisition unit, which is used to update the initialization frost condition of the air conditioner according to the first average outer tube temperature according to the second preset rule to obtain the first defrost condition, wherein the second preset rule is to update the current defrost condition of the air conditioner after the air conditioner exits the initialization frost stage or exits the target second defrost stage. The new rule targets the second defrost stage as the defrost stage after the initialization frost stage, and the initialization frost condition includes the conditions for the air conditioner to enter and exit the initialization frost stage; the sixth acquisition unit is used to obtain the second average outer tube temperature of the outer tube within a predetermined time after the air conditioner exits the second defrost stage when the first defrost stage is the initialization frost stage; the seventh acquisition unit is used to update the first defrost condition of the air conditioner for the first time according to the second average outer tube temperature according to the second preset rule to obtain the second defrost condition; the first determination unit is used to determine that the second defrost condition is the defrost condition before the air conditioner enters the first current defrost stage.

[0086] In an optional embodiment of the present invention, the defrost control device of the air conditioner also includes: an eighth acquisition unit, used to update the initialization frost condition of the air conditioner according to the second preset rule based on the first average external tube temperature, and before obtaining the first defrost condition, after the air conditioner is started, obtain the historical operation record of the air conditioner; a second determination unit, used to determine that the initialization frost condition is the preset defrost condition when the historical operation record indicates that the air conditioner is in a power-off state before starting; a third determination unit, used to determine that the initialization frost condition is the last historical defrost condition when the historical operation record indicates that the air conditioner is in a standby state before starting, wherein the last historical defrost condition is the last defrost condition of the air conditioner before entering the standby state.

[0087] In an optional embodiment of the present invention, the second acquisition unit includes: a first acquisition module, used to compare the first interval duration with the second interval duration to obtain a first comparison result; a second acquisition module, used to calculate the difference between the first duration and the second duration to obtain a defrost duration deviation; a third acquisition module, used to compare the defrost duration deviation with a deviation threshold to obtain a second comparison result; a fourth acquisition module, used to compare the second duration with a duration threshold to obtain a third comparison result; and a fifth acquisition module, used to adjust the value of the current average external tube temperature according to the first preset rule based on the first comparison result, the second comparison result and the third comparison result to obtain the current defrost condition of the air conditioner.

[0088] In an optional embodiment of the present invention, the current defrost condition includes the current defrost entry condition and the current defrost exit condition, and the fifth acquisition module includes: a first determination submodule, which is used to determine the current defrost entry condition as follows: the current outer tube temperature is not greater than the first target threshold value obtained by subtracting the current average outer tube temperature from the first preset temperature value when the first comparison result indicates that the first interval duration is not greater than the second interval duration, and if the second comparison result indicates that the defrost duration deviation is not greater than the deviation threshold, and determine the current defrost exit condition as follows: the current outer tube temperature is greater than the second target threshold value obtained by adding the current average outer tube temperature to the second preset temperature value, wherein the first preset temperature value is the temperature value for adjusting the value of the current average outer tube temperature when determining the current defrost entry condition, and the second preset temperature value is the temperature value for adjusting the value of the current average outer tube temperature when determining the current defrost exit condition. degree value; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is less than the time threshold, then the current defrost entry condition is determined as: the current average outer tube temperature is not greater than the third target threshold obtained by adding the first target threshold to the first preset temperature compensation value, and the current defrost exit condition is determined as: the current outer tube temperature is greater than the second target threshold; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is not less than the time threshold, then the current defrost entry condition is determined as: the current average outer tube temperature is not greater than the fourth target threshold obtained by adding the first target threshold to the second preset temperature compensation value, and the current defrost exit condition is determined as: the current average outer tube temperature is greater than the fifth target threshold obtained by adding the second target threshold to the first preset temperature compensation value, wherein the second preset temperature compensation value is greater than the first preset temperature compensation value.

[0089] In an optional embodiment of the present invention, the current defrost condition includes the current defrost entry condition and the current defrost exit condition, and the fifth acquisition module includes: a second determination submodule, which is used to determine the current defrost entry condition as follows: the current average outer tube temperature is not greater than the sixth target threshold value obtained by subtracting the first target threshold value from the first preset temperature compensation value, when the first comparison result indicates that the first interval duration is greater than the second interval duration, and if the second comparison result indicates that the defrost duration deviation is not greater than the deviation threshold, and determine the current defrost exit condition as follows: the current average outer tube temperature is greater than the sixth target threshold value obtained by subtracting the first preset temperature compensation value. to the seventh target threshold; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is less than the time threshold, then the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the sixth target threshold, and the current defrost exit condition is determined to be: the current outer tube temperature is greater than the second target threshold; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is not less than the time threshold, then the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the fourth target threshold, and the current defrost exit condition is determined to be: the current outer tube temperature is greater than the second target threshold.

[0090] In an optional embodiment of the present invention, the current defrost condition includes a current defrost entry condition and a current defrost exit condition, the current outer tube temperature includes a first current outer tube temperature and a second current outer tube temperature, and the control unit includes: a sixth acquisition module, used to obtain the first current outer tube temperature of the outer tube pipeline at a predetermined time interval after the air conditioner exits the current defrost stage; a first control module, used to control the air conditioner to perform a defrost start operation to enter a target defrost stage when the current outer tube temperature reaches the current defrost entry condition, wherein the target defrost stage is the next defrost stage of the current defrost stage; a seventh acquisition module, used to obtain the second current outer tube temperature of the outer tube pipeline at a predetermined time interval when the air conditioner is running in the target defrost stage; a second control module, used to control the air conditioner to perform a defrost stop operation when the second current outer tube temperature reaches the current defrost exit condition.

[0091] According to another aspect of the embodiments of the present invention, a defrost control system for an air conditioner is further provided. The defrost control system for the air conditioner uses any one of the above-mentioned defrost control methods for the air conditioner.

[0092] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is further provided. The computer-readable storage medium includes a stored program, wherein the program executes any one of the above-mentioned defrost control methods for an air conditioner.

[0093] Optionally, in this embodiment, the computer-readable storage medium may be located in any one of the computer terminals in a computer terminal group in a computer network, or in any one of the communication devices in a communication device group.

[0094] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: after determining that the air conditioner exits the current defrost stage, obtaining the current average outer tube temperature of the outer tube pipeline in the air conditioner within a predetermined time period, wherein the current defrost stage is any defrost stage other than the first defrost stage and the second defrost stage during the operation of the air conditioner; obtaining a first time period that the air conditioner is in the first defrost stage, a second time period that the air conditioner is in the second defrost stage, a first interval time period between the air conditioner exiting the first defrost stage and entering the second defrost stage, and a second interval time period between the air conditioner exiting the second defrost stage and entering the current defrost stage, wherein the second defrost stage is the previous defrost stage of the current defrost stage, and the first defrost stage is the previous defrost stage of the second defrost stage; the value of the current average outer tube temperature is adjusted according to the first time length, the second time length, the first interval time length and the second interval time length according to the first preset rule to obtain the current defrost condition of the air conditioner, wherein the first preset rule is a rule for updating the current defrost condition of the air conditioner after the air conditioner exits the current defrost stage; when the current outer tube temperature of the outer tube pipeline reaches the current defrost condition, the air conditioner is controlled to perform a defrost start operation or a defrost stop operation, wherein the current outer tube temperature is the current temperature obtained by collecting the outer tube pipeline at a predetermined time interval during the operation of the air conditioner.

[0095] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: when the first defrost stage is the initialization frost stage, obtaining a first average outer tube temperature of the outer tube within a predetermined time after the air conditioner exits the first defrost stage, wherein the initialization frost stage is the first defrost stage after the air conditioner is started; updating the initialization frost condition of the air conditioner according to the first average outer tube temperature according to a second preset rule to obtain a first defrost condition, wherein the second preset rule is a rule for updating the current defrost condition of the air conditioner after the air conditioner exits the initialization frost stage or exits the target second defrost stage, the target second defrost stage is a defrost stage after the initialization frost stage, and the initialization frost condition includes conditions for the air conditioner to enter the initialization frost stage and exit the initialization frost stage; when the first defrost stage is the initialization frost stage, obtaining a second average outer tube temperature of the outer tube within a predetermined time after the air conditioner exits the second defrost stage; updating the first defrost condition of the air conditioner for the first time according to the second average outer tube temperature according to the second preset rule to obtain a second defrost condition; determining the second defrost condition to be the defrost condition before the air conditioner enters the first current defrost stage.

[0096] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: after the air conditioner is started, obtaining a historical operation record of the air conditioner; when the historical operation record indicates that the air conditioner was in a power-off state before starting, determining that the initialization frost condition is a preset defrost condition; when the historical operation record indicates that the air conditioner was in a standby state before starting, determining that the initialization frost condition is the last historical defrost condition, wherein the last historical defrost condition is the last defrost condition of the air conditioner before entering the standby state.

[0097] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: comparing the first interval duration with the second interval duration to obtain a first comparison result; calculating the difference between the first duration and the second duration to obtain a defrost duration deviation; comparing the defrost duration deviation with a deviation threshold to obtain a second comparison result; comparing the second duration with a duration threshold to obtain a third comparison result; and adjusting the current average external tube temperature according to a first preset rule based on the first comparison result, the second comparison result and the third comparison result to obtain the current defrost condition of the air conditioner.

[0098] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: when the first comparison result indicates that the first interval duration is not greater than the second interval duration, if the second comparison result indicates that the defrost duration deviation is not greater than the deviation threshold, then determining the current defrost entry condition as: the current outer tube temperature is not greater than a first target threshold value obtained by subtracting the current average outer tube temperature from the first preset temperature value, and determining the current defrost exit condition as: the current outer tube temperature is greater than a second target threshold value obtained by adding the current average outer tube temperature to the second preset temperature value, wherein the first preset temperature value is a temperature value for adjusting the value of the current average outer tube temperature when determining the current defrost entry condition, and the second preset temperature value is a temperature value for adjusting the value of the current average outer tube temperature when determining the current defrost exit condition; ... If the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is less than the time threshold, then the current defrost entry condition is determined as: the current average outer tube temperature is not greater than the third target threshold obtained by adding the first target threshold to the first preset temperature compensation value, and the current defrost exit condition is determined as: the current outer tube temperature is greater than the second target threshold; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is not less than the time threshold, then the current defrost entry condition is determined as: the current average outer tube temperature is not greater than the fourth target threshold obtained by adding the first target threshold to the second preset temperature compensation value, and the current defrost exit condition is determined as: the current average outer tube temperature is greater than the fifth target threshold obtained by adding the second target threshold to the first preset temperature compensation value, wherein the second preset temperature compensation value is greater than the first preset temperature compensation value.

[0099] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: when the first comparison result indicates that the first interval duration is greater than the second interval duration, if the second comparison result indicates that the defrost duration deviation is not greater than the deviation threshold, determine the current defrost entry condition as follows: the current average outer tube temperature is not greater than the sixth target threshold obtained by subtracting the first preset temperature compensation value from the first target threshold, and determine the current defrost exit condition as follows: the current average outer tube temperature is greater than the seventh target threshold obtained by subtracting the second target threshold from the first preset temperature compensation value; if the If the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is less than the time threshold, then the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the sixth target threshold, and the current defrost exit condition is determined to be: the current outer tube temperature is greater than the second target threshold; if the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is not less than the time threshold, then the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the fourth target threshold, and the current defrost exit condition is determined to be: the current outer tube temperature is greater than the second target threshold.

[0100] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: after the air conditioner exits the current defrost stage, obtaining a first current outer tube temperature of the outer tube pipeline at predetermined time intervals; when the current outer tube temperature reaches the current defrost entry condition, controlling the air conditioner to perform a defrost start operation to enter a target defrost stage, wherein the target defrost stage is the next defrost stage of the current defrost stage; while the air conditioner is operating in the target defrost stage, obtaining a second current outer tube temperature of the outer tube pipeline at predetermined time intervals; when the second current outer tube temperature reaches the current defrost exit condition, controlling the air conditioner to perform a defrost stop operation.

[0101] According to another aspect of an embodiment of the present invention, a processor is further provided, and the processor is used to run a program, wherein when the program is run, any one of the above-mentioned defrost control methods for an air conditioner is executed.

[0102] According to another aspect of an embodiment of the present invention, a computer program product is further provided, comprising computer instructions, and when the computer instructions are executed by a processor, any one of the above-mentioned defrost control methods for an air conditioner is executed.

[0103] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0104] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0105] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0106] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0107] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0108] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0109] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A defrost control method for an air conditioner, characterized in that: include: After determining that the air conditioner exits the current defrost stage, obtaining the current average outer tube temperature of the outer tube in the air conditioner within a predetermined time period, wherein the current defrost stage is any defrost stage except the first defrost stage and the second defrost stage during the operation of the air conditioner; Obtaining a first duration of the air conditioner being in the first defrost stage, a second duration of the air conditioner being in the second defrost stage, a first interval duration between the air conditioner exiting the first defrost stage and entering the second defrost stage, and a second interval duration between the air conditioner exiting the second defrost stage and entering the current defrost stage, wherein the second defrost stage is the defrost stage before the current defrost stage, and the first defrost stage is the defrost stage before the second defrost stage; According to the first time length, the second time length, the first interval time length and the second interval time length, the value of the current average outer tube temperature is adjusted according to a first preset rule to obtain a current defrost condition of the air conditioner, wherein the first preset rule is a rule for updating the current defrost condition of the air conditioner after the air conditioner exits the current defrost stage; When the current outer tube temperature of the outer tube pipeline reaches the current defrost condition, the air conditioner is controlled to perform a defrost start operation or a defrost stop operation, wherein the current outer tube temperature is the current temperature obtained by collecting the outer tube pipeline at a predetermined time interval during the operation of the air conditioner.

2. The defrost control method for an air conditioner according to claim 1, characterized in that: Also includes: In the case where the first defrost stage is an initial frost stage, obtaining a first average outer tube temperature of the outer tube within the predetermined time after the air conditioner exits the first defrost stage, wherein the initial frost stage is the first defrost stage after the air conditioner is started; The initialization frost condition of the air conditioner is updated according to the second preset rule according to the first average outer tube temperature to obtain a first defrost condition, wherein the second preset rule is a rule for updating the current defrost condition of the air conditioner after the air conditioner exits the initialization frost stage or exits the target second defrost stage, the target second defrost stage is the defrost stage after the initialization frost stage, and the initialization frost condition includes the conditions for the air conditioner to enter the initialization frost stage and exit the initialization frost stage; In the case where the first defrosting stage is an initial defrosting stage, obtaining a second average outer tube temperature of the outer tube within the predetermined time period after the air conditioner exits the second defrosting stage; updating the first defrost condition of the air conditioner for the first time according to the second average outer tube temperature and the second preset rule to obtain a second defrost condition; The second defrost condition is determined to be the defrost condition before the air conditioner enters the first current defrost stage.

3. The defrost control method for an air conditioner according to claim 2, characterized in that: Before the initial frost condition of the air conditioner is updated according to the first average outer tube temperature and the second preset rule to obtain the first defrost condition, the method further includes: After the air conditioner is started, obtaining a historical operation record of the air conditioner; In the case where the historical operation record indicates that the air conditioner is in a power-off state before starting, determining that the initial frost condition is a preset defrost condition; When the historical operation record indicates that the air conditioner is in standby state before startup, the initialization frost condition is determined to be the last historical defrost condition, wherein the last historical defrost condition is the last defrost condition before the air conditioner enters the standby state.

4. The defrost control method for an air conditioner according to claim 1, characterized in that: The current defrosting condition of the air conditioner is obtained by adjusting the value of the current average outer tube temperature according to the first time length, the second time length, the first interval time length, and the second interval time length according to a first preset rule, including: Compare the first interval duration with the second interval duration to obtain a first comparison result; Calculating the difference between the first time length and the second time length to obtain a defrosting time length deviation; Comparing the defrost time deviation with a deviation threshold to obtain a second comparison result; Compare the second duration with a duration threshold to obtain a third comparison result; According to the first comparison result, the second comparison result and the third comparison result, the value of the current average outer tube temperature is adjusted according to the first preset rule to obtain the current defrosting condition of the air conditioner.

5. The defrost control method for an air conditioner according to claim 4, characterized in that: The current defrost condition includes a current defrost entry condition and a current defrost exit condition. The value of the current average outer tube temperature is adjusted according to the first preset rule based on the first comparison result, the second comparison result, and the third comparison result to obtain the current defrost condition of the air conditioner, including: When the first comparison result indicates that the first interval duration is not greater than the second interval duration, If the second comparison result indicates that the defrost time deviation is not greater than the deviation threshold, the current defrost entry condition is determined as: the current outer tube temperature is not greater than the first target threshold obtained by subtracting the current average outer tube temperature from the first preset temperature value, and the current defrost exit condition is determined as: the current outer tube temperature is greater than the second target threshold obtained by adding the current average outer tube temperature to the second preset temperature value, wherein the first preset temperature value is the temperature value for adjusting the numerical value of the current average outer tube temperature when determining the current defrost entry condition, and the second preset temperature value is the temperature value for adjusting the numerical value of the current average outer tube temperature when determining the current defrost exit condition; If the second comparison result indicates that the defrost duration deviation is greater than the deviation threshold and the third comparison result indicates that the second duration is less than the duration threshold, the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than a third target threshold obtained by adding the first target threshold to the first preset temperature compensation value, and the current defrost exit condition is determined to be: the current outer tube temperature is greater than the second target threshold; If the second comparison result indicates that the defrost time deviation is greater than the deviation threshold and the third comparison result indicates that the second time is not less than the time threshold, the current defrost entry condition is determined as: the current average outer tube temperature is not greater than the fourth target threshold obtained by adding the first target threshold and the second preset temperature compensation value, and the current defrost exit condition is determined as: the current average outer tube temperature is greater than the fifth target threshold obtained by adding the second target threshold and the first preset temperature compensation value, wherein the second preset temperature compensation value is greater than the first preset temperature compensation value.

6. The defrost control method for an air conditioner according to claim 4, characterized in that: The current defrost condition includes a current defrost entry condition and a current defrost exit condition. The value of the current average outer tube temperature is adjusted according to the first preset rule based on the first comparison result, the second comparison result, and the third comparison result to obtain the current defrost condition of the air conditioner, including: In the case where the first comparison result indicates that the first interval duration is greater than the second interval duration, if the second comparison result indicates that the defrost duration deviation is not greater than the deviation threshold, the current defrost entry condition is determined as: the current average outer tube temperature is not greater than the sixth target threshold obtained by subtracting the first preset temperature compensation value from the first target threshold, and the current defrost exit condition is determined as: the current average outer tube temperature is greater than the seventh target threshold obtained by subtracting the second target threshold from the first preset temperature compensation value; If the second comparison result indicates that the defrost duration deviation is greater than the deviation threshold and the third comparison result indicates that the second duration is less than the duration threshold, the current defrost entry condition is determined to be: the current average outer tube temperature is not greater than the sixth target threshold, and the current defrost exit condition is determined to be: the current outer tube temperature is greater than the second target threshold; If the second comparison result indicates that the defrost duration deviation is greater than the deviation threshold and the third comparison result indicates that the second duration is not less than the duration threshold, the current defrost entry condition is determined as: the current average outer tube temperature is not greater than the fourth target threshold, and the current defrost exit condition is determined as: the current outer tube temperature is greater than the second target threshold.

7. The defrost control method for an air conditioner according to claim 1, characterized in that: The current defrost condition includes a current defrost entry condition and a current defrost exit condition, the current external tube temperature includes a first current external tube temperature and a second current external tube temperature, and when the current external tube temperature of the external tube reaches the current defrost condition, controlling the air conditioner to perform a defrost start operation or a defrost stop operation includes: After the air conditioner exits the current defrosting stage, acquiring the first current outer tube temperature of the outer tube pipeline at the predetermined time interval; When the current outer tube temperature reaches the current defrost entry condition, controlling the air conditioner to perform the defrost start operation to enter a target defrost stage, wherein the target defrost stage is the defrost stage after the current defrost stage; During the operation of the air conditioner in the target defrosting stage, acquiring the second current outer tube temperature of the outer tube pipeline at the predetermined time interval; When the second current outer tube temperature reaches the current defrost exit condition, the air conditioner is controlled to perform a defrost stop operation.

8. A defrost control device for an air conditioner, characterized in that: include: A first acquisition unit is used to acquire the current average outer tube temperature of the outer tube in the air conditioner within a predetermined time period after determining that the air conditioner exits the current defrost stage, wherein the current defrost stage is any defrost stage except the first defrost stage and the second defrost stage during the operation of the air conditioner; A second acquisition unit is used to acquire a first duration of the air conditioner being in the first defrost stage, a second duration of the air conditioner being in the second defrost stage, a first interval duration between the air conditioner exiting the first defrost stage and entering the second defrost stage, and a second interval duration between the air conditioner exiting the second defrost stage and entering the current defrost stage, wherein the second defrost stage is the defrost stage before the current defrost stage, and the first defrost stage is the defrost stage before the second defrost stage; a third acquisition unit, configured to adjust the value of the current average outer tube temperature according to the first duration, the second duration, the first interval duration, and the second interval duration according to a first preset rule, to obtain a current defrost condition of the air conditioner, wherein the first preset rule is a rule for updating the current defrost condition of the air conditioner after the air conditioner exits the current defrost stage; A control unit is used to control the air conditioner to perform a defrost start operation or a defrost stop operation when the current outer tube temperature of the outer tube pipeline reaches the current defrost condition, wherein the current outer tube temperature is the current temperature obtained by collecting the outer tube pipeline at a predetermined time interval during the operation of the air conditioner.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the program executes the defrost control method for the air conditioner according to any one of claims 1 to 7.

10. A computer program product comprising computer instructions, characterized in that: When the computer instructions are executed by the processor, the defrost control method for the air conditioner according to any one of claims 1 to 7 is executed.

Images