An air conditioner defrosting control method, device, equipment and medium

Abstract

The embodiment of the present application provides a kind of air conditioner defrosting control method, comprising: obtaining the first running value of current air conditioner;Obtain the indoor temperature difference ΔT1 between user set indoor temperature T 设定 With indoor environment temperature T 内环 When indoor temperature difference ΔT1 is not less than preset indoor temperature difference ΔT 预设 , obtain indoor heat exchanger temperature T 内管 And the temperature rise rate value ΔTs1 of indoor heat exchanger;When temperature rise value ΔTs1 is not greater than temperature rise rate preset value ψ 内管 , and indoor heat exchanger temperature T 内管 Not greater than indoor heat exchanger temperature preset value T 内管预设 , air conditioner enters defrosting operation stage.Through the detection of outdoor heat exchanger temperature T 外管 And indoor temperature difference ΔT1 and temperature rise rate value ΔTs1 condition, judge whether indoor is still in temperature rise stage, to avoid premature into defrosting operation processing, make indoor environment temperature in not reaching user set temperature just defrosting stop heating and further reduce.

Description

Technical Field

[0001] This invention relates to the field of defrosting control technology, and in particular to an air conditioning defrosting control method, apparatus, equipment and medium. Background Technology

[0002] When an air conditioner is operating in heating mode during winter, if the outdoor heat exchanger temperature is lower than the dew point temperature of the moist air and below 0°C, water vapor in the air will condense into a frost layer on the surface of the outdoor heat exchanger. This frost layer increases the thermal resistance of the outdoor heat exchanger, causing a decrease in heating capacity. To ensure heating performance, the outdoor heat exchanger needs to be defrosted when the frost layer reaches a certain level.

[0003] Currently, the most common method for air conditioners to determine whether to initiate defrost mode is based on whether the outdoor heat exchanger temperature reaches a threshold, indicating whether the frost layer on the outdoor heat exchanger has reached the maximum limit affecting heating performance. However, during outdoor defrosting, the air conditioner transfers heat originally intended for the indoor environment to the outdoor unit for defrosting. Therefore, this current defrosting determination method does not consider the indoor thermal comfort state and cannot balance the temperature impact between outdoor and indoor defrosting operations, which affects the user's indoor temperature experience. Summary of the Invention

[0004] In view of the above problems, embodiments of the present invention are proposed to provide an air conditioning defrosting control method, apparatus, device and medium that overcomes or at least partially solves the above problems.

[0005] To address the aforementioned problems, this invention discloses an air conditioner defrosting control method, comprising:

[0006] The air conditioner has entered the indoor heating operation phase.

[0007] Obtain the first operating value of the air conditioner; the first operating value includes the current heating operation time t of the air conditioner. 制热运行 Outdoor heat exchanger temperature T 外管 Outdoor ambient temperature T 外环 User-set indoor temperature T 设定 and indoor ambient temperature T 内环 ;

[0008] When heating operation lasts for t 制热运行 Not less than the preset heating operation time t 制热预设 And the outdoor heat exchanger temperature T 外管 Not greater than the preset outdoor heat exchanger temperature T 外管预设 At that time, obtain the user-set indoor temperature T. 设定 With indoor ambient temperature T 内环 The indoor temperature difference between them is ∆T1;

[0009] When the indoor temperature difference ∆T1 is not less than the preset indoor temperature difference ΔT 预设 At that time, obtain the indoor heat exchanger temperature T. 内管 ; and, obtain the temperature rise rate value ∆Ts1 of the indoor heat exchanger during a preset time Ty;

[0010] When the temperature rise rate ∆Ts1 is not greater than the preset temperature rise rate ψ 内管 And the indoor heat exchanger temperature T 内管 Not greater than the preset temperature T of the indoor heat exchanger 内管预设 At this time, the air conditioner enters the defrosting stage.

[0011] Preferably, when the indoor temperature difference ∆T1 is not less than the preset indoor temperature difference ΔT 预设 At that time, obtain the indoor heat exchanger temperature T. 内管 ; and, the step of obtaining the temperature rise rate value ∆Ts1 of the indoor heat exchanger within a preset time Ty includes:

[0012] Get the current indoor heat exchanger temperature T at the first moment. 内管1 The indoor heat exchanger temperature T at the second moment after a preset time Ty. 内管2 The indoor heat exchanger temperature T 内管 Including the indoor heat exchanger temperature T 内管1 and the indoor heat exchanger temperature T 内管2 .

[0013] Preferably, after the air conditioner enters the defrosting operation stage, it also includes:

[0014] Determine if the air conditioner has ever undergone defrosting.

[0015] When the air conditioner has previously undergone defrosting, obtain the indoor temperature drop rate SL during the defrosting operation.

[0016] When the indoor temperature drop rate SL is not less than the preset value ψ of the indoor temperature drop rate during defrosting operation 除霜 At that time, the second defrost data SG1 is acquired; and the defrost operation is performed based on the second defrost data SG1.

[0017] When the outdoor heat exchanger temperature T 外管 Not less than the preset temperature T of the outdoor heat exchanger when defrosting is stopped 退出除霜预设 At that time, the defrosting operation should be stopped.

[0018] Preferably, after determining whether the air conditioner has undergone defrosting, the method further includes:

[0019] When the air conditioner has not undergone defrosting, the first defrosting data SG0 of the air conditioner is acquired, and defrosting is performed using the first defrosting data SG0; wherein, the first defrosting data SG0 includes the compressor frequency P0 and the outdoor fan speed X0;

[0020] Preferably, when the outdoor heat exchanger temperature T 外管 Not less than the preset temperature T of the outdoor heat exchanger when defrosting is stopped 退出除霜预设 When exiting the defrosting operation, the following steps are also included:

[0021] Clear the defrost data SG11 from the defrost operation process; wherein, the defrost data SG11 includes: the indoor ambient temperature T at the time of entering the defrost operation. 除霜前内环 The indoor ambient temperature T at the time of defrosting termination 除霜后内环 and defrosting runtime t 除霜时长 ;

[0022] Clear the heating data ZR11 from the indoor heating operation phase; wherein, the heating data ZR11 includes: heating operation duration t 制热运行 .

[0023] Preferably, when the indoor temperature drop rate SL is not less than the preset value ψ of the indoor temperature drop rate during defrosting operation. 除霜 The step of acquiring second defrost data SG1 and performing defrost operations based on the second defrost data SG1 further includes:

[0024] The second defrosting data SG1 includes compressor frequency P1, outdoor fan speed X1; compressor frequency P2, outdoor fan speed X2 and compressor frequency P3 and outdoor fan speed X3;

[0025] Get the current outdoor relative humidity value φ 外环 The first outdoor relative humidity interval value φ1 and the second outdoor relative humidity interval value φ2;

[0026] When the outdoor relative humidity value φ 外环 When the relative humidity of the second outdoor environment is not less than the value of φ2 in the second outdoor environment relative humidity interval, the compressor frequency during defrosting is P1 and the outdoor fan speed is X1.

[0027] When the outdoor relative humidity value φ 外环 The relative humidity is less than the second outdoor relative humidity interval value φ2, and the outdoor relative humidity value φ 外环 When the relative humidity of the outdoor environment is greater than the first outdoor relative humidity range value φ1, the compressor frequency during defrosting is P2 and the outdoor fan speed is X2.

[0028] When the outdoor relative humidity value φ 外环When the relative humidity of the outdoor environment is not greater than the first outdoor relative humidity range value φ1, the compressor frequency during defrosting is P3 and the outdoor fan speed is X3.

[0029] Preferably, the compressor frequency P1 is greater than the compressor frequency P2, and the compressor frequency P2 is greater than the compressor frequency P3;

[0030] The external fan speed X1 is greater than the external fan speed X2, and the external fan speed X2 is greater than the external fan speed X3.

[0031] This invention discloses an air conditioner defrosting control device, comprising:

[0032] The data acquisition module acquires the first operating value of the air conditioner when it enters the indoor heating operation phase; the first operating value includes the current heating operation duration t of the air conditioner. 制热运行 Outdoor heat exchanger temperature T 外管 Outdoor ambient temperature T 外环 User-set indoor temperature T 设定 and indoor ambient temperature T 内环 ;

[0033] The first data judgment module determines the duration t of the heating operation. 制热运行 Not less than the preset heating operation time t 制热预设 And the outdoor heat exchanger temperature T 外管 Not greater than the preset outdoor heat exchanger temperature T 外管预设 At that time, obtain the user-set indoor temperature T. 设定 With indoor ambient temperature T 内环 The indoor temperature difference between them is ∆T1;

[0034] The second data judgment module determines whether the indoor temperature difference ∆T1 is not less than the preset indoor temperature difference ΔT. 预设 At that time, obtain the indoor heat exchanger temperature T. 内管 ; and, obtain the temperature rise rate value ∆Ts1 of the indoor heat exchanger during a preset time Ty;

[0035] The third data judgment module determines the temperature rise rate when the temperature rise rate value ∆Ts1 is not greater than the preset temperature rise rate value ψ. 内管 And the indoor heat exchanger temperature T 内管 Not greater than the preset temperature T of the indoor heat exchanger 内管预设 At this time, the air conditioner enters the defrosting stage.

[0036] This invention discloses an electronic device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, it implements the above-described air conditioning defrosting control method.

[0037] This invention provides a computer-readable storage medium, including a computer program stored on the computer-readable storage medium, wherein the computer program, when executed by a processor, implements the above-described air conditioning defrosting control method.

[0038] The embodiments of the present invention include the following advantages: by controlling the outdoor heat exchanger temperature T 外管 The detection and judgment can obtain the current temperature of the outdoor heat exchanger, and then determine the thickness of the outdoor frost layer; at the same time, by judging the indoor temperature difference ∆T1 and the temperature rise rate value ∆Ts1, the difference between the current indoor ambient temperature and the user set temperature can be obtained. This difference can be used to determine whether the indoor temperature is still in the temperature rise stage, so as to avoid premature defrosting and prevent the indoor ambient temperature from dropping further due to the cessation of heating for defrosting before reaching the user set temperature. Attached Figure Description

[0039] Figure 1 This is a flowchart illustrating the steps of an embodiment of the air conditioner defrosting control method of the present invention;

[0040] Figure 2 This is a schematic structural block diagram of an embodiment of an air conditioner defrosting control device according to the present invention;

[0041] Figure 3 This is an electronic device according to an embodiment of an air conditioner defrosting control method of the present invention. Detailed Implementation

[0042] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] Reference Figure 1-3 , Figure 1 This is a flowchart illustrating the steps of an embodiment of an air conditioner defrosting control method according to the present invention, which may specifically include the following steps:

[0044] The air conditioner has entered the indoor heating operation phase.

[0045] Obtain the first operating value of the air conditioner; the first operating value includes the current heating operation time t of the air conditioner. 制热运行 Outdoor heat exchanger temperature T 外管 Outdoor ambient temperature T 外环 User-set indoor temperature T 设定 and indoor ambient temperature T 内环 ;

[0046] When heating operation lasts for t 制热运行 Not less than the preset heating operation time t 制热预设 And the outdoor heat exchanger temperature T 外管 Not greater than the preset outdoor heat exchanger temperature T外管预设 At that time, obtain the user-set indoor temperature T. 设定 With indoor ambient temperature T 内环 The indoor temperature difference between them is ∆T1;

[0047] When the indoor temperature difference ∆T1 is not less than the preset indoor temperature difference ΔT 预设 At that time, obtain the indoor heat exchanger temperature T. 内管 ; and, obtain the temperature rise rate value ∆Ts1 of the indoor heat exchanger during a preset time Ty;

[0048] When the temperature rise rate ∆Ts1 is not greater than the preset temperature rise rate ψ 内管 And the indoor heat exchanger temperature T 内管 Not greater than the preset temperature T of the indoor heat exchanger 内管预设 At this time, the air conditioner enters the defrosting stage. This is achieved by monitoring the outdoor heat exchanger temperature T. 外管 The detection and judgment can obtain the current temperature of the outdoor heat exchanger, and then determine the thickness of the outdoor frost layer; at the same time, by judging the indoor temperature difference ∆T1 and the temperature rise rate value ∆Ts1, the difference between the current indoor ambient temperature and the user set temperature can be obtained. This difference can be used to determine whether the indoor temperature is still in the temperature rise stage, so as to avoid premature defrosting and prevent the indoor ambient temperature from dropping further due to the cessation of heating for defrosting before reaching the user set temperature.

[0049] It should be noted that the heating operation time t 制热运行 This refers to the operating time of the air conditioner from the start of heating to the start of defrosting.

[0050] Since the air from the indoor unit is blown out after passing through the indoor heat exchanger, the temperature T of the indoor heat exchanger is... 内管 It can be used to characterize the current air outlet temperature and confirm the comfort level of the air outlet temperature.

[0051] When the heating operation time t is not met simultaneously 制热运行 Not less than the preset heating operation time t 制热预设 And the outdoor heat exchanger temperature T 外管 Not greater than the preset outdoor heat exchanger temperature T 外管预设 At that time, the air conditioner continued to operate the indoor heating function.

[0052] It should be noted that the heating operation time t 制热运行 Not less than the preset heating operation time t 制热预设 When the outdoor heat exchanger temperature T reaches a certain value, it indicates that the current operating time has exceeded the minimum operating time. This condition is to avoid the air conditioner frequently entering defrost mode, which would cause frequent fluctuations in indoor temperature. 外管 Not greater than the preset outdoor heat exchanger temperature T 外管预设When the outdoor heat exchanger temperature is very low and the frost layer has reached a certain thickness, defrosting is required; if both conditions are met, defrosting can begin.

[0053] It should also be noted that the defrosting process includes both warm-up defrosting and stabilization defrosting. When the indoor temperature difference ∆T1 is less than the preset indoor temperature difference ΔT... 预设 At that time, the air conditioner directly performs stable defrosting operation;

[0054] When the indoor temperature difference ∆T1 is not less than the preset indoor temperature difference ΔT 预设 At that time, obtain the indoor heat exchanger temperature T. 内管 ; and, obtain the temperature rise rate ∆Ts1 of the indoor heat exchanger per unit time within a preset time Ty; when the temperature rise rate ∆Ts1 is not greater than the preset temperature rise rate ψ 内管 And the indoor heat exchanger temperature T 内管 Not greater than the preset temperature T of the indoor heat exchanger 内管预设 At that time, the air conditioner enters the heating and defrosting stage.

[0055] Among them, when the indoor temperature difference ∆T1 is not less than the preset indoor temperature difference ΔT 预设 This indicates that the current indoor ambient temperature differs significantly from the user-set temperature, and the system is still in the temperature rise phase. It is necessary to extend the heating operation time as much as possible to avoid premature defrosting, which could cause the indoor ambient temperature to drop further before reaching the user-set temperature due to defrosting shutdown. Therefore, during this temperature rise phase, it is necessary to simultaneously obtain the temperature rise rate value ∆Ts1 and the preset temperature rise rate value ψ. 内管 The relationship between the two, and the indoor heat exchanger temperature T 内管 With the indoor heat exchanger temperature preset value T 内管预设 The relationship between these factors is used to determine whether defrosting by raising the temperature is necessary. When the temperature rise rate ∆Ts1 is not greater than the preset temperature rise rate ψ... 内管 This indicates that the heat exchanger temperature is decreasing and the heating capacity is declining. When the indoor heat exchanger temperature T... 内管 Not greater than the preset temperature T of the indoor heat exchanger 内管预设 This indicates that the outlet air temperature is too low and uncomfortable. Simultaneously, the temperature rise rate ∆Ts1 should not exceed the preset temperature rise rate ψ. 内管 And the indoor heat exchanger temperature T 内管 Not greater than the preset temperature T of the indoor heat exchanger 内管预设 When the temperature reaches 37 degrees Celsius, it indicates that the heating capacity has decreased and does not meet the requirements for comfortable airflow, requiring defrosting by raising the temperature.

[0056] The defrosting control logic is the same for the steady-state defrosting operation stage and the temperature rise defrosting operation stage. The only difference between them is the frequency of compressor operation and the speed of external fan during defrosting operation.

[0057] That is, when the defrosting state is steady-state defrosting control, the indoor ambient temperature is relatively stable. Due to the heat storage and good insulation effect of the building envelope walls, the indoor temperature drops slowly. Even if the defrosting time is slightly increased, the total indoor temperature drop during defrosting can still be within a small range due to the slow temperature drop rate, thus ensuring indoor thermal comfort. Therefore, the compressor frequency can be appropriately reduced during defrosting at this stage to achieve energy-saving effect.

[0058] When the defrosting mode is temperature rise defrosting control, in order to ensure indoor thermal comfort and avoid a large drop in indoor temperature due to excessive defrosting time, a higher defrosting heat is required in this stage to quickly defrost and restore heating.

[0059] The higher the operating speed of the outdoor fan, the better the heat exchange effect of the outdoor heat exchanger, the faster the frost melts, and the higher the energy consumption. When the defrosting state is steady-state defrosting control, the operating speed of the outdoor fan can be appropriately reduced during defrosting to achieve energy saving. When the defrosting state is temperature rise defrosting control, the operating speed of the outdoor fan can be appropriately increased during defrosting to accelerate the defrosting speed.

[0060] The following will further describe an air conditioning defrosting control method in this exemplary embodiment.

[0061] As an example, when the indoor temperature difference ∆T1 is not less than the preset indoor temperature difference ΔT 预设 At that time, obtain the indoor heat exchanger temperature T. 内管 ; and, the step of obtaining the temperature rise rate ∆Ts1 of the indoor heat exchanger per unit time within a preset time Ty includes:

[0062] Get the current indoor heat exchanger temperature T at the first moment. 内管1 The indoor heat exchanger temperature T at the second moment after a preset time Ty. 内管2 The indoor heat exchanger temperature T 内管 Including the indoor heat exchanger temperature T 内管1 and the indoor heat exchanger temperature T 内管2 ;

[0063] The time interval between the first moment and the second moment is the preset time Ty. More specifically, the unit of time is generally 1 minute. When the preset time is 5 minutes, that is, the interval between the first moment and the second moment is 5 minutes, the indoor heat exchanger temperature T is obtained at this time. 内管1 and indoor heat exchanger temperature T 内管2 The temperature difference between the two points can be used to calculate the temperature rise rate ∆Ts1 by dividing this temperature difference by 5 minutes.

[0064] As an example, when an air conditioner enters the defrosting stage, it also includes:

[0065] Determine if the air conditioner has ever undergone defrosting.

[0066] When the air conditioner has previously undergone defrosting, obtain the indoor temperature drop rate SL during the defrosting operation.

[0067] When the indoor temperature drop rate SL is not less than the preset value ψ of the indoor temperature drop rate during defrosting operation 除霜 At that time, the second defrost data SG1 is acquired; and the defrost operation is performed based on the second defrost data SG1.

[0068] When the outdoor heat exchanger temperature T 外管 Not less than the preset temperature T of the outdoor heat exchanger when defrosting is stopped 退出除霜预设 At that time, the defrosting operation should be stopped.

[0069] As an example, after determining whether the air conditioner has undergone defrosting, the following steps are also included:

[0070] When the air conditioner has not undergone defrosting, the first defrosting data SG0 of the air conditioner is acquired, and defrosting is performed using the first defrosting data SG0; wherein, the first defrosting data SG0 includes the compressor frequency P0 and the outdoor fan speed X0;

[0071] As an example, when the outdoor heat exchanger temperature T 外管 Not less than the preset temperature T of the outdoor heat exchanger when defrosting is stopped 退出除霜预设 When exiting the defrosting operation, the following steps are also included:

[0072] Clear the defrost data SG11 from the defrost operation process; wherein, the defrost data SG11 includes: the indoor ambient temperature T at the time of entering the defrost operation. 除霜前内环 The indoor ambient temperature T at the time of defrosting termination 除霜后内环 and defrosting runtime t 除霜时长 ;

[0073] Clear the heating data ZR11 from the indoor heating operation phase; wherein, the heating data ZR11 includes: heating operation duration t 制热运行 More specifically, as the frost layer on the outdoor unit gradually melts, the outdoor heat exchanger temperature T... 外管 It also gradually increases, so the outdoor heat exchanger temperature T can be detected. 外管 To determine whether the frost has completely melted, when the outdoor heat exchanger temperature T... 外管 The temperature must be no less than the preset value T of the outdoor heat exchanger when defrosting is stopped. 退出除霜预设 When the frost layer has completely melted, defrosting can be stopped; record the indoor ambient temperature T at the moment defrosting begins. 除霜前内环 The indoor ambient temperature T at the time of defrosting termination 除霜后内环 Defrosting runtime t除霜时长 and heating operation time t 制热运行 Reset to zero to facilitate the acquisition of relevant parameters for the next defrosting.

[0074] As an example, when the indoor temperature drop rate SL is not less than the preset value ψ of the indoor temperature drop rate during defrosting operations. 除霜 The step of acquiring second defrost data SG1 and performing defrost operations based on the second defrost data SG1 further includes:

[0075] The second defrosting data SG1 includes compressor frequency P1, outdoor fan speed X1; compressor frequency P2, outdoor fan speed X2 and compressor frequency P3 and outdoor fan speed X3;

[0076] Get the current outdoor relative humidity value φ 外环 The first outdoor relative humidity interval value φ1 and the second outdoor relative humidity interval value φ2;

[0077] When the outdoor relative humidity value φ 外环 When the relative humidity of the second outdoor environment is not less than the value of φ2 in the second outdoor environment relative humidity interval, the compressor frequency during defrosting is P1 and the outdoor fan speed is X1.

[0078] When the outdoor relative humidity value φ 外环 The relative humidity is less than the second outdoor relative humidity interval value φ2, and the outdoor relative humidity value φ 外环 When the relative humidity of the outdoor environment is greater than the first outdoor relative humidity range value φ1, the compressor frequency during defrosting is P2 and the outdoor fan speed is X2.

[0079] When the outdoor relative humidity value φ 外环 When the relative humidity of the outdoor environment is not greater than the first outdoor relative humidity range value φ1, the compressor frequency during defrosting is P3 and the outdoor fan speed is X3.

[0080] As an example, the compressor frequency P1 is greater than the compressor frequency P2, and the compressor frequency P2 is greater than the compressor frequency P3;

[0081] The external fan speed X1 is greater than the external fan speed X2, and the external fan speed X2 is greater than the external fan speed X3. More specifically, when φ 外环 ≥φ2 indicates that the outdoor relative humidity is high, the frost layer is thick and dense, difficult to melt completely, and requires more defrosting heat; when φ1 < φ 外环 <φ2 indicates that the outdoor relative humidity is moderate, the frost layer is not thick, and the required defrosting heat is moderate; when φ 外环≤φ1 indicates that the outdoor relative humidity is low, the frost layer is thin and loose, and very little defrosting heat is required. Since a higher compressor operating frequency provides more defrosting heat, the frost melts faster, and consequently, energy consumption is higher. Therefore, P0 is the compressor operating frequency during the first defrost; P1 is the compressor operating frequency when the outer ambient humidity is high and high defrosting heat is required; P2 is the compressor operating frequency when the outer ambient humidity is moderate and moderate defrosting heat is required; and P3 is the compressor operating frequency when the outer ambient humidity is low and less defrosting heat is required. Thus, P1>P2>P3, P1>P0>P3, where P0 can be equal to P2.

[0082] Because a higher outdoor fan speed results in better heat exchange from the outdoor heat exchanger and faster frost melting, the energy consumption is correspondingly higher. X0 represents the outdoor fan speed during the initial defrost cycle; X1 represents the outdoor fan speed when the ambient humidity is high, requiring a significant increase in the outdoor heat exchanger's efficiency; X2 represents the outdoor fan speed when the ambient humidity is moderate, requiring an increase in the outdoor heat exchanger's efficiency; and X3 represents the outdoor fan speed when the ambient humidity is low, requiring a normal outdoor heat exchanger efficiency. Therefore, X1 > X2 > X3, X1 > X0 > X3, where X0 can be equal to X2.

[0083] It should be noted that, for the sake of simplicity, the method embodiments are all described as a series of actions. However, those skilled in the art should understand that the embodiments of the present invention are not limited to the described order of actions, because according to the embodiments of the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions involved are not necessarily essential to the embodiments of the present invention.

[0084] Reference Figure 2 The diagram shows a structural block diagram of an embodiment of an air conditioner defrosting control device according to the present invention, which may specifically include the following modules:

[0085] The data acquisition module acquires the first operating value of the air conditioner when it enters the indoor heating operation phase; the first operating value includes the current heating operation duration t of the air conditioner. 制热运行 Outdoor heat exchanger temperature T 外管 Outdoor ambient temperature T 外环 User-set indoor temperature T 设定 and indoor ambient temperature T 内环 ;

[0086] The first data judgment module determines the duration t of the heating operation. 制热运行 Not less than the preset heating operation time t 制热预设 And the outdoor heat exchanger temperature T 外管 Not greater than the preset outdoor heat exchanger temperature T 外管预设At that time, obtain the user-set indoor temperature T. 设定 With indoor ambient temperature T 内环 The indoor temperature difference between them is ∆T1;

[0087] The second data judgment module determines whether the indoor temperature difference ∆T1 is not less than the preset indoor temperature difference ΔT. 预设 At that time, obtain the indoor heat exchanger temperature T. 内管 ; and, obtain the temperature rise rate value ∆Ts1 of the indoor heat exchanger during a preset time Ty;

[0088] The third data judgment module determines the temperature rise rate when the temperature rise rate value ∆Ts1 is not greater than the preset temperature rise rate value ψ. 内管 And the indoor heat exchanger temperature T 内管 Not greater than the preset temperature T of the indoor heat exchanger 内管预设 At this time, the air conditioner enters the defrosting stage.

[0089] It should be noted that, for the sake of simplicity, the method embodiments are all described as a series of actions. However, those skilled in the art should understand that the embodiments of this application are not limited to the described order of actions, because according to the embodiments of this application, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of this application.

[0090] As the device embodiment is basically similar to the method embodiment, the description is relatively simple, and relevant parts can be found in the description of the method embodiment.

[0091] Reference Figure 3 In this embodiment of the invention, the invention also provides a computer device, wherein the computer device 12 is manifested in the form of a general-purpose computing device, and the components of the computer device 12 may include, but are not limited to: one or more processors or processing units 16, system memory 28, and bus 18 connecting different system components (including system memory 28 and processing unit 16).

[0092] Bus 18 refers to one or more of several types of bus 18 architectures, including memory bus 18 or memory controller, peripheral bus 18, graphics acceleration port, processor, or local bus 18 using any of the various bus 18 architectures. For example, these architectures include, but are not limited to, Industry Standard Architecture (ISA) bus 18, Micro Channel Architecture (MAC) bus 18, Enhanced ISA bus 18, Audio / Video Electronics Standards Association (VESA) local bus 18, and Peripheral Component Interconnect (PCI) bus 18.

[0093] Computer device 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by computer device 12, including volatile and non-volatile media, removable and non-removable media.

[0094] System memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 31 and / or cache memory 32. Computer device 12 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage system 34 may be used to read and write non-removable, non-volatile magnetic media (commonly referred to as a "hard disk drive"). Although Figure 3 Not shown, a disk drive for reading and writing to a removable non-volatile disk (such as a "floppy disk") and an optical disk drive for reading and writing to a removable non-volatile optical disk (such as a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 via one or more data media interfaces. The memory may include at least one program product having a set (e.g., at least one) of program modules 42 configured to perform the functions of the embodiments of the present invention.

[0095] A program / utility 41 having a set (at least one) of program modules 42 may be stored, for example, in memory. Such program modules 42 include—but are not limited to—an operating system, one or more application programs, other program modules 42, and program data. Each or some combination of these examples may include an implementation of a network environment. Program modules 42 typically perform the functions and / or methods described in the embodiments of the present invention.

[0096] Computer device 12 can also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, camera, etc.), and with one or more devices that enable a user to interact with the computer device 12, and / or with any device that enables the computer device 12 to communicate with one or more other computing devices (e.g., network card, modem, etc.). This communication can be performed via input / output (I / O) interface 22. Furthermore, computer device 12 can also communicate with one or more networks (e.g., local area network (LAN)), wide area network (WAN), and / or public networks (e.g., the Internet) via network adapter 21. As shown, network adapter 21 communicates with other modules of computer device 12 via bus 18. It should be understood that, although not shown in the figures, other hardware and / or software modules can be used in conjunction with computer device 12, including but not limited to: microcode, device drivers, redundant processing unit 16, external disk drive arrays, RAID systems, tape drives, and data backup storage systems 34, etc.

[0097] The processing unit 16 executes various functional applications and data processing by running programs stored in the system memory 28, such as implementing the air conditioning defrosting control method provided in the embodiments of the present invention.

[0098] That is, when the above-mentioned processing unit 16 executes the above-mentioned program, the air conditioner enters the indoor heating operation stage;

[0099] Obtain the current first operating value of the air conditioner; the first operating value includes the current heating operation time t_heating_operation, outdoor heat exchanger temperature T_outer_pipe, outdoor ambient temperature T_outer_loop, user-set indoor temperature T_set, and indoor ambient temperature T_inner_loop.

[0100] When the heating operation time t_heating_operation is not less than the preset heating operation time t_heating_preset, and the outdoor heat exchanger temperature T_outer_pipe is not greater than the preset outdoor heat exchanger temperature T_outer_pipe_preset, the indoor temperature difference ∆T1 between the user-set indoor temperature T_set and the indoor ambient temperature T_inner_loop is obtained.

[0101] When the indoor temperature difference ∆T1 is not less than the preset indoor temperature difference ΔTpreset, the indoor heat exchanger temperature Tinner tube is obtained; and the indoor heat exchanger temperature rise rate ∆Ts1 is obtained during the preset time Ty.

[0102] When the temperature rise rate ∆Ts1 is not greater than the preset temperature rise rate ψ_inner pipe, and the indoor heat exchanger temperature T_inner pipe is not greater than the preset indoor heat exchanger temperature T_inner pipe, the air conditioner enters the defrosting operation stage.

[0103] In this embodiment of the invention, the invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the air conditioning defrosting control method provided in all embodiments of this application.

[0104] That is, when the program is executed by the processor, it enables the air conditioner to enter the indoor heating operation stage;

[0105] Obtain the current first operating value of the air conditioner; the first operating value includes the current heating operation time t_heating_operation, outdoor heat exchanger temperature T_outer_pipe, outdoor ambient temperature T_outer_loop, user-set indoor temperature T_set, and indoor ambient temperature T_inner_loop.

[0106] When the heating operation time t_heating_operation is not less than the preset heating operation time t_heating_preset, and the outdoor heat exchanger temperature T_outer_pipe is not greater than the preset outdoor heat exchanger temperature T_outer_pipe_preset, the indoor temperature difference ∆T1 between the user-set indoor temperature T_set and the indoor ambient temperature T_inner_loop is obtained.

[0107] When the indoor temperature difference ∆T1 is not less than the preset indoor temperature difference ΔTpreset, the indoor heat exchanger temperature Tinner tube is obtained; and the indoor heat exchanger temperature rise rate ∆Ts1 is obtained during the preset time Ty.

[0108] When the temperature rise rate ∆Ts1 is not greater than the preset temperature rise rate ψ_inner pipe, and the indoor heat exchanger temperature T_inner pipe is not greater than the preset indoor heat exchanger temperature T_inner pipe, the air conditioner enters the defrosting operation stage.

[0109] Any combination of one or more computer-readable media may be used. A computer-readable medium may be a computer-to-signal medium or a computer-readable storage medium. A computer-readable storage medium may be, for example—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPOM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this document, a computer-readable storage medium may be any tangible medium that contains or stores a program that may be used by or in connection with an instruction execution system, apparatus, or device.

[0110] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including—but not limited to—electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit programs for use by or in connection with an instruction execution system, apparatus, or device.

[0111] Computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof. These programming languages ​​include object-oriented programming languages—such as Java, Smalltalk, and C++—as well as conventional procedural programming languages—such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0112] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0113] Those skilled in the art will understand that embodiments of this application can be provided as methods, apparatus, or computer program products. Therefore, embodiments of this application can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of this application can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0114] This application describes embodiments with reference to flowchart illustrations and / or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0115] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing terminal device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0116] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal equipment, causing a series of operational steps to be performed on the computer or other programmable terminal equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable terminal equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0117] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0118] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0119] The above provides a detailed description of an air conditioning defrosting control method, apparatus, device, and medium provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand this application and its core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An air conditioner defrosting control method, characterized in that, include: The air conditioner has entered the indoor heating operation phase. Get the current operating value of the air conditioner; The first operating value includes the current heating operation time t of the air conditioner. 制热运行 Outdoor heat exchanger temperature T 外管 Outdoor ambient temperature T 外环 User-set indoor temperature T 设定 and indoor ambient temperature T 内环 ; When heating operation lasts for t 制热运行 Not less than the preset heating operation time t 制热预设 And the outdoor heat exchanger temperature T 外管 Not greater than the preset outdoor heat exchanger temperature T 外管预设 At that time, obtain the user-set indoor temperature T. 设定 With indoor ambient temperature T 内环 The indoor temperature difference between them is ∆T1; When the indoor temperature difference ∆T1 is not less than the preset indoor temperature difference ΔT 预设 At that time, obtain the indoor heat exchanger temperature T. 内管 ; and, obtain the temperature rise rate value ∆Ts1 of the indoor heat exchanger during a preset time Ty; When the temperature rise rate ∆Ts1 is not greater than the preset temperature rise rate ψ 内管 And the indoor heat exchanger temperature T 内管 Not greater than the preset temperature T of the indoor heat exchanger 内管预设 At this time, the air conditioner enters the defrosting stage.

2. The method according to claim 1, characterized in that, When the indoor temperature difference ∆T1 is not less than the preset indoor temperature difference ΔT 预设 At that time, obtain the indoor heat exchanger temperature T. 内管 ; And, the step of obtaining the temperature rise rate value ∆Ts1 of the indoor heat exchanger within a preset time Ty includes: Get the current indoor heat exchanger temperature T at the first moment. 内管1 The indoor heat exchanger temperature T at the second moment after a preset time Ty. 内管2 The indoor heat exchanger temperature T 内管 Including the indoor heat exchanger temperature T 内管1 and the indoor heat exchanger temperature T 内管2 .

3. The method according to claim 2, characterized in that, When the air conditioner enters the defrosting stage, it also includes: Determine if the air conditioner has ever undergone defrosting. When the air conditioner has previously undergone defrosting, obtain the indoor temperature drop rate SL during the defrosting operation. When the indoor temperature drop rate SL is not less than the preset value ψ of the indoor temperature drop rate during defrosting operation 除霜 At that time, the second defrost data SG1 is acquired; and the defrost operation is performed based on the second defrost data SG1. When the outdoor heat exchanger temperature T 外管 Not less than the preset temperature T of the outdoor heat exchanger when defrosting is stopped 退出除霜预设 At that time, the defrosting operation should be stopped.

4. The method according to claim 3, characterized in that, After determining whether the air conditioner has undergone defrosting, the following steps are also included: When the air conditioner has not undergone defrosting, the first defrosting data SG0 of the air conditioner is acquired, and defrosting is performed using the first defrosting data SG0; wherein, the first defrosting data SG0 includes the compressor frequency P0 and the outdoor fan speed X0.

5. The method according to claim 4, characterized in that, When the outdoor heat exchanger temperature T 外管 Not less than the preset temperature T of the outdoor heat exchanger when defrosting is stopped 退出除霜预设 When exiting the defrosting operation, the following steps are also included: Clear the defrost data SG11 from the defrost operation process; wherein, the defrost data SG11 includes: the indoor ambient temperature T at the time of entering the defrost operation. 除霜前内环 The indoor ambient temperature T at the time of defrosting termination 除霜后内环 and defrosting runtime t 除霜时长 ; Clear the heating data ZR11 from the indoor heating operation phase; wherein, the heating data ZR11 includes: heating operation duration t 制热运行 .

6. The method according to claim 5, characterized in that, When the indoor temperature drop rate SL is not less than the preset value ψ of the indoor temperature drop rate during defrosting operation. 除霜 At that time, obtain the second defrost data SG1; The step of performing defrosting operations using the second defrosting data SG1 also includes: The second defrosting data SG1 includes compressor frequency P1, outdoor fan speed X1; compressor frequency P2, outdoor fan speed X2 and compressor frequency P3 and outdoor fan speed X3; Get the current outdoor relative humidity value φ 外环 The first outdoor relative humidity interval value φ1 and the second outdoor relative humidity interval value φ2; When the outdoor relative humidity value φ 外环 When the relative humidity of the second outdoor environment is not less than the value of φ2 in the second outdoor environment relative humidity interval, the compressor frequency during defrosting is P1 and the outdoor fan speed is X1. When the outdoor relative humidity value φ 外环 The relative humidity is less than the second outdoor relative humidity interval value φ2, and the outdoor relative humidity value φ 外环 When the relative humidity of the outdoor environment is greater than the first outdoor relative humidity range value φ1, the compressor frequency during defrosting is P2 and the outdoor fan speed is X2. When the outdoor relative humidity value φ 外环 When the relative humidity of the outdoor environment is not greater than the first outdoor relative humidity range value φ1, the compressor frequency during defrosting is P3 and the outdoor fan speed is X3.

7. The method according to claim 6, characterized in that, The compressor frequency P1 is greater than the compressor frequency P2, and the compressor frequency P2 is greater than the compressor frequency P3; The external fan speed X1 is greater than the external fan speed X2, and the external fan speed X2 is greater than the external fan speed X3.

8. An air conditioner defrosting control device, characterized in that, include: Data acquisition module, the air conditioner enters the indoor heating operation stage; Get the current operating value of the air conditioner; The first operating value includes the current heating operation time t of the air conditioner. 制热运行 Outdoor heat exchanger temperature T 外管 Outdoor ambient temperature T 外环 User-set indoor temperature T 设定 and indoor ambient temperature T 内环 ; The first data judgment module determines the duration t of the heating operation. 制热运行 Not less than the preset heating operation time t 制热预设 And the outdoor heat exchanger temperature T 外管 Not greater than the preset outdoor heat exchanger temperature T 外管预设 At that time, obtain the user-set indoor temperature T. 设定 With indoor ambient temperature T 内环 The indoor temperature difference between them is ∆T1; The second data judgment module determines whether the indoor temperature difference ∆T1 is not less than the preset indoor temperature difference ΔT. 预设 At that time, obtain the indoor heat exchanger temperature T. 内管 ; and, obtain the temperature rise rate value ∆Ts1 of the indoor heat exchanger during a preset time Ty; The third data judgment module determines the temperature rise rate when the temperature rise rate value ∆Ts1 is not greater than the preset temperature rise rate value ψ. 内管 And the indoor heat exchanger temperature T 内管 Not greater than the preset temperature T of the indoor heat exchanger 内管预设 At this time, the air conditioner enters the defrosting stage.

9. An electronic device, characterized in that, It includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein the computer program, when executed by the processor, implements the air conditioning defrosting control method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer program stored on the computer-readable storage medium implements the air conditioning defrosting control method as described in any one of claims 1-7 when executed by a processor.

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