Defrosting control method, device, apparatus and computer storage medium

Abstract

The application belongs to the field of air conditioners, and particularly relates to a defrosting control method, device, equipment and computer storage medium. The defrosting control method provided by the application comprises the following steps: obtaining a defrosting entering temperature according to an outdoor environment temperature; when an outdoor coil temperature is less than the defrosting entering temperature, performing a defrosting operation and obtaining a compressor operation time; obtaining a defrosting time after the defrosting operation ends; and adjusting an operation parameter of the air conditioner according to the compressor operation time and the defrosting time. The defrosting control method provided by the application adjusts the operation parameter of the air conditioner according to the compressor operation time and the defrosting time, so that the defrosting time and the compressor operation time reach a relatively reasonable range, the operation parameter of the air conditioner is optimized, the heating efficiency of the air conditioner is improved, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of air conditioners, and particularly relates to a defrosting control method, device, equipment and computer storage medium. BACKGROUND

[0002] As a refrigeration or heating device, an air conditioner has become a part of people's life and improved the comfort of people's life. When the air conditioner is in low-temperature heating operation, frosting phenomenon occurs in the heat exchanger of the outdoor unit, and with the increase of the frosting thickness, the heat exchange efficiency of the heat exchanger of the outdoor unit decreases, thereby causing the heating effect to decrease. Therefore, defrosting is needed.

[0003] In the prior art, the defrosting condition is optimized according to the defrosting time, thereby indirectly adjusting the defrosting time. However, the condition for adjusting the defrosting time in the prior art is too single, thereby causing the adjustment of the defrosting time to be not accurate enough. SUMMARY

[0004] The application provides a defrosting control method, device, equipment and computer storage medium to solve the defect that the condition for adjusting the defrosting time in the prior art is too single, thereby causing the adjustment of the defrosting time to be not accurate enough.

[0005] In one aspect, the application provides a defrosting control method, comprising:

[0006] obtaining a defrosting entering temperature according to an outdoor environment temperature;

[0007] performing a defrosting operation when the outdoor coil temperature is less than the defrosting entering temperature, and obtaining a compressor running time;

[0008] obtaining a defrosting time after the defrosting operation ends;

[0009] adjusting a running parameter of the air conditioner according to the compressor running time and the defrosting time.

[0010] Optionally, the adjusting of the running parameter of the air conditioner according to the compressor running time and the defrosting time comprises:

[0011] if the compressor running time is less than a first running time threshold, determining whether the defrosting time is less than a first defrosting time threshold, and if yes, reducing the defrosting entering temperature;

[0012] if no, determining whether to reduce a compressor target discharge according to the defrosting time and a second defrosting time threshold, the second defrosting time threshold being greater than the first defrosting time threshold.

[0013] Optionally, the determining of whether to reduce the compressor target discharge according to the defrosting time and the second defrosting time threshold comprises:

[0014] decreasing the compressor target discharge and decreasing the indoor fan speed when the defrosting time is greater than the second defrosting time threshold;

[0015] decreasing the indoor fan speed when the defrosting time is less than the second defrosting time threshold.

[0016] Optionally, after the indoor fan speed is decreased, the method further comprises:

[0017] if the decreasing amplitude of the target operating parameter of the air conditioner is less than a first preset decreasing amplitude, obtaining a new target operating parameter according to the first preset decreasing amplitude;

[0018] controlling the air conditioner to operate at the new target operating parameter and decreasing the compressor operating frequency, the target operating parameter comprising the speed of the indoor fan and the compressor target discharge;

[0019] if the decreasing amplitude of the compressor operating frequency is greater than or equal to a second preset decreasing amplitude, re-acquiring the outdoor coil temperature.

[0020] Optionally, the adjusting the operating parameter of the air conditioner according to the compressor operating time and the defrosting time comprises:

[0021] if the compressor operating time is greater than a first operating time threshold, determining whether the compressor operating time is greater than a second operating time threshold, wherein the first operating time threshold is less than the second operating time threshold;

[0022] if yes, increasing the compressor target discharge and adjusting the defrosting entering temperature according to the defrosting time, the first defrosting time threshold and the second defrosting time threshold.

[0023] if no, adjusting the defrosting entering temperature according to the defrosting time, the first defrosting time threshold and the second defrosting time threshold.

[0024] Optionally, the adjusting the defrosting entering temperature according to the defrosting time, the first defrosting time threshold and the second defrosting time threshold comprises:

[0025] decreasing the defrosting entering temperature when the defrosting time is less than the first defrosting time threshold;

[0026] increasing the defrosting entering temperature when the defrosting time is greater than the second defrosting time threshold.

[0027] Optionally, after the compressor target discharge is increased, the method further comprises:

[0028] if the increasing amplitude of the compressor target discharge is greater than or equal to a preset increasing amplitude of the compressor target discharge, re-acquiring the outdoor coil temperature.

[0029] If the increase value of the compressor target discharge is less than a preset increase value of the compressor target discharge, a new compressor target discharge is obtained according to the preset increase value, the compressor is controlled to operate at the new compressor target discharge, and the outdoor coil temperature is re-obtained.

[0030] In a second aspect, the present application provides a defrosting control device, comprising:

[0031] An obtaining module is configured to obtain a defrosting entering temperature according to an outdoor environment temperature.

[0032] A defrosting module is configured to perform a defrosting operation when an outdoor coil temperature is less than the defrosting entering temperature.

[0033] The obtaining module is further configured to obtain a compressor operating time and a defrosting time after the defrosting operation ends.

[0034] A processing module is configured to adjust operating parameters of an air conditioner according to the compressor operating time and the defrosting time.

[0035] Optionally, the processing module is specifically configured to determine whether the defrosting time is less than a first defrosting time threshold if the compressor operating time is less than a first operating time threshold, and if yes, reduce the defrosting entering temperature; and if no, determine whether to reduce a compressor target discharge according to the defrosting time and a second defrosting time threshold, the second defrosting time threshold being greater than the first defrosting time threshold.

[0036] Optionally, the processing module is specifically configured to reduce the compressor target discharge and reduce an indoor fan rotating speed when the defrosting time is greater than the second defrosting time threshold, and reduce the indoor fan rotating speed when the defrosting time is less than the second defrosting time threshold.

[0037] Optionally, the processing module is further configured to obtain a new target operating parameter according to a first preset reduction value if a reduction value of a target operating parameter of the air conditioner is less than the first preset reduction value, control the air conditioner to operate at the new target operating parameter, and reduce a compressor operating frequency, the target operating parameter comprising a rotating speed of an indoor fan and the compressor target discharge.

[0038] Optionally, the obtaining module is further configured to re-obtain the outdoor coil temperature if a reduction value of the compressor operating frequency is greater than or equal to a second preset reduction value.

[0039] Optionally, the processing module is specifically further configured to: if the compressor operation time is greater than a first operation time threshold, determine whether the compressor operation time is greater than a second operation time threshold, wherein the first operation time threshold is less than the second operation time threshold; if yes, increase the compressor target discharge, and adjust the defrosting inlet temperature according to the defrosting time, the first defrosting time threshold and the second defrosting time threshold; and if no, adjust the defrosting inlet temperature according to the defrosting time, the first defrosting time threshold and the second defrosting time threshold.

[0040] Optionally, the processing module is specifically configured to: decrease the defrosting inlet temperature when the defrosting time is less than a first defrosting time threshold; and increase the defrosting inlet temperature when the defrosting time is greater than a second defrosting time threshold.

[0041] Optionally, the acquisition module is further configured to: if the increment value of the compressor target discharge is greater than or equal to a preset increment value of the compressor target discharge, re-acquire the outdoor coil temperature.

[0042] The processing module is further configured to: if the increment value of the compressor target discharge is less than the preset increment value of the compressor target discharge, acquire a new compressor target discharge according to the preset increment value, and control the compressor to operate at the new compressor target discharge.

[0043] In a third aspect, the present application provides a defrosting control device, comprising:

[0044] a memory;

[0045] a processor;

[0046] wherein the memory stores computer execution instructions;

[0047] The processor executes the computer execution instructions stored in the memory to implement the defrosting control method as described in the first aspect and various possible implementation manners of the first aspect.

[0048] In a fourth aspect, the present application provides a computer storage medium having computer execution instructions stored thereon, wherein the computer execution instructions are executed by a processor to implement the defrosting control method as described in the first aspect and various possible implementation manners of the first aspect.

[0049] The defrosting control method provided by the application obtains a defrosting entering temperature according to an outdoor environment temperature; when an outdoor coil temperature is less than the defrosting entering temperature, a defrosting operation is performed, and a compressor running time is obtained; after the defrosting operation ends, a defrosting time is obtained; and the running parameters of the air conditioner are adjusted according to the compressor running time and the defrosting time, so that the defrosting time and the compressor running time reach a relatively reasonable range, and meanwhile the running parameters of the air conditioner are optimized, the heating efficiency of the air conditioner is improved, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0050] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application.

[0051] Figure 1 is a flow of the defrosting control method provided by the application Figure 1 ;

[0052] Figure 2 is a flow of the defrosting control method provided by the application Figure 2 ;

[0053] Figure 3 is a structural schematic diagram of the defrosting control device provided by the application;

[0054] Figure 4 is a structural schematic diagram of the defrosting control device provided by the application.

[0055] The specific embodiments have been shown and described in the foregoing drawings part of the specification, and will be described in more detail hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the application in any way, but to illustrate the concept of the application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical scheme and advantages of the application more clear, the technical scheme of the application will be described clearly and completely in the following combined with the drawings in the application. Obviously, the described embodiments are part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0057] The terms "first", "second", "third", "fourth" and the like (if any) in the specification and claims of the application and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein.

[0058] Air conditioners, as refrigeration or heating equipment, have become part of people's lives and have improved people's comfort. When the air conditioner is in low-temperature heating operation, the outdoor heat exchanger of the air conditioner will appear frost phenomenon, and defrosting is needed at this time.

[0059] Generally, the air conditioner will enter the defrosting state when the defrosting condition is met. The defrosting condition may be, for example, that the maximum difference between the outdoor coil temperature and the indoor temperature is greater than a preset threshold, the cumulative operating time of the compressor exceeds 45 minutes, etc., or the air conditioner may be forced to enter the defrosting state, for example, when the cumulative operating time of the compressor exceeds 45 minutes and the continuous operating time exceeds 20 minutes, the coil temperature is less than the indoor temperature for 5 minutes, and the air conditioner enters the defrosting state.

[0060] However, in the prior art, the defrosting condition does not match the actual scene, and the defrosting condition needs to be optimized.

[0061] In the prior art, the defrosting condition is commonly optimized according to the defrosting time, thereby indirectly adjusting the defrosting time.

[0062] However, in the prior art, the condition for adjusting the defrosting time is too single, resulting in inaccurate adjustment of the defrosting time. In the prior art, the operating parameters of the compressor are not adjusted, so that the defrosting time and the operating time of the compressor cannot be well adjusted to a relatively reasonable range.

[0063] The present application provides a defrosting control method, which adjusts the operating parameters of the air conditioner according to the obtained operating time of the compressor and the defrosting time, so that the defrosting time and the operating time of the compressor are in a relatively reasonable range, and the operating parameters of the air conditioner are indirectly optimized, the heating efficiency of the air conditioner is improved, and the user experience is improved.

[0064] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes may not be described again in some examples. The embodiments of the present application will be described below with reference to the accompanying drawings.

[0065] Figure 1 The defrosting control method provided by the embodiments of the present application Figure 1 As shown in FIG. 1, the defrosting control method shown in the embodiments includes the following steps. Figure 1

[0066] S101: Obtain the defrosting entering temperature according to the outdoor environment temperature.

[0067] ​The defrost entering temperature is a temperature reference value of the air conditioner when entering defrosting, which can be compared with the outdoor coil temperature to determine whether to perform defrosting operation.

[0068] There is a correlation between the outdoor environment temperature and the defrost entering temperature. The current defrost entering temperature can be determined according to the outdoor environment temperature. For example, if the current outdoor environment temperature is 5℃, the corresponding defrost entering temperature can be -5℃; if the current outdoor environment temperature is 0℃, the corresponding defrost entering temperature can be -12℃, and so on.

[0069] S102: When the outdoor coil temperature is less than the defrost entering temperature, perform defrosting operation and obtain the compressor running time.

[0070] The outdoor coil temperature refers to the temperature of the outdoor coil of the air conditioner. When the outdoor coil temperature is less than the defrost entering temperature, it indicates that the temperature on the outdoor coil is low and there is frost phenomenon, so defrosting operation is performed.

[0071] When the air conditioner enters defrosting operation, the compressor stops running and the air conditioner also changes from heating state to defrosting state. The compressor running time refers to the time of air conditioner heating operation in this period, for example, the compressor start running time can be obtained when the air conditioner starts heating, and the compressor end running time can be obtained when the air conditioner stops heating, so as to determine the compressor running time.

[0072] S103: After the defrosting operation ends, obtain the defrosting time.

[0073] The defrosting time refers to the time of air conditioner defrosting operation, which can be determined according to the defrosting start time and the defrosting end time.

[0074] S104: Adjust the running parameters of the air conditioner according to the compressor running time and the defrosting time.

[0075] The running parameters of the air conditioner may be, for example, the speed of the indoor fan, the speed of the outdoor fan, the frequency of the compressor operation, the target discharge of the compressor, and the temperature of the air conditioner entering defrosting, and other running parameters that can optimize the compressor running time and defrosting time of the air conditioner.

[0076] In this step, the running parameters of the air conditioner are dynamically adjusted according to the compressor running time and the defrosting time, so that the compressor running time and the defrosting time in the same period tend to be more reasonable, which improves the heating efficiency of the air conditioner and improves the user experience.

[0077] Exemplarily, when the compressor operation time is too short, the compressor operation time can be shortened by at least one of reducing the rotation speed of the indoor fan, increasing the rotation speed of the outdoor fan, reducing the frequency of the compressor operation, reducing the target discharge of the compressor, and reducing the defrost entering temperature.

[0078] Alternatively, when the ratio of the compressor operation time to the defrost time exceeds a preset ratio, the operation parameters of the air conditioner are adjusted to make the compressor operation time and the defrost time more reasonable. The specific implementation of adjusting the operation parameters of the air conditioner is not particularly limited in this embodiment, as long as the compressor operation time and the defrost time can be more reasonable.

[0079] The defrosting control method provided in this embodiment includes: obtaining a defrost entering temperature according to an outdoor environment temperature; performing a defrost operation when an outdoor coil temperature is less than the defrost entering temperature, and obtaining a compressor operation time; obtaining a defrost time after the defrost operation ends; and adjusting operation parameters of the air conditioner according to the compressor operation time and the defrost time. Compared with the prior art in which only the defrost entering temperature is optimized according to the defrost time, the defrost time and the compressor operation time can be better brought to a relatively reasonable range by adjusting the operation parameters of the air conditioner according to the compressor operation time and the defrost time, which indirectly optimizes the operation parameters of the air conditioner, improves the heating efficiency of the air conditioner, and improves the user experience.

[0080] Figure 2 The flow of the defrosting control method provided in this embodiment Figure 2 This embodiment is based on the above-mentioned embodiment one and details the defrosting control method. As shown in Figure 2 The defrosting control method provided in this embodiment includes:

[0081] S201: Obtain a defrost entering temperature according to an outdoor environment temperature.

[0082] S202: Obtain an outdoor coil temperature, perform a defrost operation when the outdoor coil temperature is less than the defrost entering temperature, and obtain a compressor operation time.

[0083] S203: Obtain a defrost time after the defrost operation ends.

[0084] Steps S201-S203 are similar to steps S101-S103, and will not be repeated here.

[0085] S204: Determine whether the compressor operation time is less than a first operation time threshold; if yes, perform step S205, and if no, perform step S206.

[0086] The first operation time threshold is a reference value of the compressor operation time, which can be preset by a user, for example. The purpose of comparing the compressor operation time with the first operation time threshold is to determine whether the compressor operation time is within a reasonable range.

[0087] S205: determining whether the defrosting time is less than a first defrosting time threshold; if yes, executing step S207, and if no, executing step S208.

[0088] The first defrosting time threshold is a reference value of the time for the air conditioner to perform the defrosting operation. The purpose of comparing the defrosting time with the first defrosting time threshold is to determine the size of the defrosting time, so as to determine whether the frosting phenomenon of the air conditioner is serious.

[0089] S206: determining whether the compressor operation time is greater than a second operation time threshold; if yes, executing step S211, and if no, executing step S212.

[0090] The second operation time threshold is greater than the first operation time threshold. The second operation time threshold can be the longest compressor operation time determined according to big data, for example.

[0091] For example, in the prior art, when the compressor operation time reaches the second operation time threshold, the air conditioner will forcibly perform the defrosting operation.

[0092] The purpose of comparing the compressor operation time with the second operation time threshold is to determine whether the compressor is in an overlong operation.

[0093] S207: reducing the defrosting entering temperature.

[0094] When the compressor operation time is less than the first operation time threshold, it indicates that the air conditioner has been in the heating operation for a short time and enters the defrosting operation. When the defrosting time is less than the first defrosting time threshold, it indicates that the air conditioner has a short defrosting time, that is, the frosting phenomenon is not serious, and thus the air conditioner only needs a short time to complete the defrosting operation.

[0095] When the compressor operation time is less than the first operation time threshold and the defrosting time is less than the first defrosting time threshold, it indicates that the air conditioner enters the defrosting state when the frosting just starts or the frosting phenomenon is not serious, that is, the defrosting entering temperature is too high, and thus the defrosting entering temperature needs to be reduced.

[0096] For example, when the current outdoor environment temperature is 0°C, the set defrosting entering temperature is -12°C, and the air conditioner is in the heating operation for 18 minutes, the outdoor coil temperature is less than -12°C, and the air conditioner performs the defrosting operation. After 2 minutes of the defrosting operation, the defrosting is completed, and the air conditioner reenters the heating state.

[0097] It can be seen that the air conditioner heating time is only 18 minutes, and the defrosting time is only 2 minutes. The total length of one cycle of heating and defrosting is 20 minutes. It can be seen that the current frost on the outdoor unit of the air conditioner is thin, the outdoor coil temperature entering condition is high, and the defrosting is more frequent.

[0098] Therefore, it is necessary to reduce the defrosting entering temperature, for example, to reduce the defrosting entering temperature to -20℃, so as to prolong the compressor running time and improve the heating efficiency of the air conditioner.

[0099] S208: determining whether the defrosting time is less than a second defrosting time threshold; if yes, executing step S209, and if no, executing step S210.

[0100] S209: reducing the indoor fan speed.

[0101] Among them, the compressor running time is less than the first running time threshold, which means that the air conditioner enters the defrosting operation when the heating time is short. The defrosting time is between the first defrosting time threshold and the second defrosting time threshold, which means that the air conditioner defrosting time is relatively reasonable.

[0102] When the compressor running time is less than the first running time threshold, and the defrosting time is between the first defrosting time threshold and the second defrosting time threshold, it indicates that the air conditioner is in a heating state, and a large amount of frost can be generated on the outdoor coil in a short time. At this time, the speed of the indoor fan of the air conditioner should be adjusted to reduce the amount of cold air blown to the outdoor coil in unit time, thereby prolonging the heating time of the air conditioner. The specific implementation of the indoor fan speed reduction value is not specially limited in this embodiment.

[0103] For example, after reducing the indoor fan speed, it can also be determined whether the indoor fan speed reduction value is less than a first preset reduction value; if yes, the indoor fan speed reduction value is updated to the first preset reduction value, a new indoor fan speed is obtained according to the first preset reduction value, and the air conditioner is controlled to operate at the new indoor fan speed; if no, a new indoor fan speed is obtained according to the indoor fan speed reduction value, and the air conditioner is controlled to operate at the new indoor fan speed.

[0104] The first preset reduction value can be pre-set, which can be, for example, the maximum reduction value of the indoor fan speed. When the indoor fan reduction value is less than the first preset reduction value, the reduction value is updated to the first preset reduction value, a new indoor fan speed is obtained, and the air conditioner is controlled to operate at the new indoor fan speed. When the indoor fan reduction value is greater than the first preset reduction value, the indoor fan reduction value is not updated.

[0105] For example, after reducing the indoor fan speed, the method further comprises: increasing the outdoor fan speed.

[0106] The method for prolonging the heating time of the air conditioner can not only include reducing the indoor fan rotating speed, but also increasing the outdoor fan rotating speed to prolong the heating time of the air conditioner.

[0107] It can be understood that increasing the outdoor fan rotating speed can make the heat dissipation of the outdoor coil better, reduce the frosting speed, slow down the temperature drop speed of the outdoor coil, thereby increasing the time for the outdoor coil temperature to reach the defrosting entering temperature, that is, increasing the heating time of the air conditioner.

[0108] S210: reduce the indoor fan rotating speed and reduce the compressor target discharge.

[0109] The compressor operating time less than the first operating time threshold indicates that the air conditioner has a short heating time and enters the defrosting operation. The defrosting time greater than the second defrosting time threshold indicates that the air conditioner has a relatively long defrosting time and a more serious frosting phenomenon.

[0110] When the compressor operating time is less than the first operating time threshold and the defrosting time is greater than the second defrosting time threshold, it indicates that the air conditioner is in a heating state, and a large amount of frost can be generated on the outdoor coil in a short time. At this time, not only the indoor fan rotating speed needs to be adjusted, but also the compressor target discharge needs to be reduced to reduce the amount of cold air blown to the outdoor coil in a unit of time, thereby prolonging the heating time of the air conditioner.

[0111] It can be understood that the air conditioner has a short heating time, but a serious frosting phenomenon, which indicates that the air conditioner compressor has a large operating power, a large amount of cold air is discharged to the outdoor, and the indoor fan blows the cold air discharged by the compressor to the outdoor at a high rotating speed. At this time, if only the indoor fan rotating speed is reduced, the heating effect in the room will be affected. Therefore, in this step, not only the indoor fan rotating speed is reduced, but also the compressor target discharge is reduced to avoid too much cold air being discharged to the outdoor in a short time and to slow down the frosting phenomenon on the outdoor coil. The specific implementation of determining the reduction amplitude of the indoor fan rotating speed and determining the reduction amplitude of the compressor target discharge is not specially limited in this embodiment. The method for determining the reduction amplitude of the indoor fan rotating speed can refer to the above description.

[0112] Exemplarily, after the compressor target discharge is reduced, it can be determined whether the reduction amplitude of the compressor target discharge is less than a first preset reduction amplitude. If yes, the reduction amplitude of the compressor target discharge is updated to the first preset reduction amplitude, a new compressor target discharge is obtained according to the first preset reduction amplitude, and the air conditioner is controlled to operate at the new compressor target discharge. If no, a new compressor target discharge is obtained according to the reduction amplitude of the compressor target discharge, and the air conditioner is controlled to operate at the new compressor target discharge.

[0113] The first preset reduction value may be, for example, a maximum reduction value of the compressor target discharge. When the reduction value of the compressor target discharge is less than the first preset reduction value, the reduction value is updated to the first preset reduction value to obtain a new compressor target discharge, and the air conditioner is controlled to operate at the new compressor target discharge. When the reduction value of the compressor target discharge is greater than the first preset reduction value, the reduction value of the compressor target discharge is not updated.

[0114] Exemplarily, after step S209 or S210, the method further comprises: reducing the compressor operating frequency.

[0115] The premise of both step S209 and step S210 is that the compressor operating time is less than a first operating time threshold, that is, the air conditioner operates in the heating mode for a short time. In order to prolong the time of the air conditioner operating in the heating mode, the compressor operating frequency can be reduced based on the above steps. By reducing the compressor operating frequency, the cold air blown to the outdoor is reduced, thereby delaying the frosting phenomenon on the outdoor coil, and prolonging the time of the air conditioner operating in the heating mode. The embodiment does not specially limit the specific implementation manner of determining the reduction value of the compressor operating frequency.

[0116] Exemplarily, after the compressor operating frequency is reduced, it can be determined whether the reduction value of the compressor operating frequency is less than a second preset reduction value. If yes, the reduction value of the compressor operating frequency is updated to the second preset reduction value, a new compressor operating frequency is obtained according to the second preset reduction value, the air conditioner is controlled to operate at the new compressor operating frequency, and the outdoor coil temperature is re-acquired. If no, a new compressor operating frequency is obtained according to the reduction value of the compressor operating frequency, the air conditioner is controlled to operate at the new compressor operating frequency, and the outdoor coil temperature is re-acquired.

[0117] The second preset reduction value may be, for example, a maximum reduction value of the compressor operating frequency. When the reduction value of the compressor operating frequency is less than the second preset reduction value, the reduction value is updated to the second preset reduction value to obtain a new compressor operating frequency, and the air conditioner is controlled to operate at the new compressor operating frequency. When the reduction value of the compressor operating frequency is greater than the second preset reduction value, the reduction value of the compressor operating frequency is not updated, the outdoor coil temperature is directly re-acquired, and the next heating-defrosting cycle is entered.

[0118] It can be understood that, as shown in Figure 3 After steps S207, S209 and S210 are executed, step S202 is continuously executed. That is, after the operating parameters of the air conditioner are adjusted, the outdoor coil temperature is re-acquired to perform the next defrosting operation.

[0119] S211: increasing the compressor target discharge.

[0120] When the compressor running time is greater than the second running time threshold, it indicates that the compressor is currently in a long running state; and since the air conditioner has not entered the defrosting state, it indicates that the temperature of the outdoor coil is not lower than the defrosting entering temperature. Therefore, it can be determined that there is a problem with the compressor running parameters, for example, the target discharge of the compressor is too low, so that less cold air is discharged to the outdoor, thereby failing to trigger the defrosting state.

[0121] Therefore, in this step, when it is determined that the compressor running time is greater than the second running time threshold, the target discharge of the compressor can be increased to increase the amount of cold air discharged to the outdoor by the compressor, so that the temperature of the outdoor coil decreases to the defrosting entering temperature more quickly, thereby shortening the heating time in the same heating-defrosting cycle and making the defrosting time and the compressor running time reach a relatively reasonable range. The specific implementation of the increase amplitude value of the target discharge of the compressor is not specially limited in this embodiment.

[0122] For example, after increasing the target discharge of the compressor, it can also be determined whether the increase amplitude value of the target discharge of the compressor is less than a preset increase amplitude value. If yes, the increase amplitude value of the target discharge of the compressor is updated to the preset increase amplitude value, a new target discharge of the compressor is obtained according to the preset increase amplitude value, the air conditioner is controlled to run at the new target discharge of the compressor, and the temperature of the outdoor coil is re-acquired. If no, a new target discharge of the compressor is obtained according to the increase amplitude value of the target discharge of the compressor, the air conditioner is controlled to run at the new target discharge of the compressor, and the temperature of the outdoor coil is re-acquired.

[0123] S212: When the defrosting time is less than the first defrosting time threshold, the defrosting entering temperature is decreased; and when the defrosting time is greater than the second defrosting time threshold, the defrosting entering temperature is increased.

[0124] When it is determined that the compressor running time is between the first running time threshold and the second running time threshold, it indicates that the compressor running time is relatively normal, and at this time, whether the defrosting entering temperature needs to be adjusted can be determined according to the defrosting time, the first defrosting time threshold and the second defrosting time threshold.

[0125] When the defrosting time is less than the first defrosting time threshold, it indicates that the air conditioner has just started frosting or has entered the defrosting state when the frosting phenomenon is not serious, that is, the defrosting entering temperature is too high, and therefore the defrosting entering temperature needs to be decreased. When the defrosting time is greater than the second defrosting time threshold, it indicates that the defrosting time of the air conditioner is relatively long, and the frosting phenomenon is relatively serious, and therefore the defrosting entering temperature needs to be increased to enable the frosting phenomenon to be executed within a reasonable range.

[0126] When the compressor target discharge is increased, it is also necessary to determine whether the defrost entering temperature needs to be adjusted according to the defrost time, the first defrost time threshold and the second defrost time threshold.

[0127] When the defrost time is less than the first defrost time threshold, it indicates that the air conditioner has just started frosting or the frosting phenomenon is not serious, and the defrosting state is entered, that is, the defrost entering temperature is too high, and thus the defrost entering temperature needs to be reduced. When the defrost time is greater than the second defrost time threshold, it indicates that the air conditioner defrosting time is relatively long, and the frosting phenomenon is relatively serious, and thus the defrost entering temperature needs to be increased to enable the frosting phenomenon to perform the defrosting operation within a reasonable range.

[0128] The defrosting control method provided in the embodiment can better enable the defrost time and the compressor running time to be within a relatively reasonable range, and at the same time, the running parameters of the air conditioner are optimized, the running efficiency of the air conditioner is improved, and the user experience is improved.

[0129] Figure 3 A structure diagram of a defrosting control device provided in the present application is shown in FIG. 1. As shown in FIG. 1, the present application provides a defrosting control device 300, which comprises: Figure 4

[0130] The acquisition module 301 is configured to acquire a defrost entering temperature according to an outdoor environment temperature.

[0131] The defrosting module 302 is configured to perform a defrosting operation when an outdoor coil temperature is less than the defrost entering temperature.

[0132] The acquisition module 301 is further configured to acquire a compressor running time and a defrost time after the defrosting operation is completed.

[0133] The processing module 303 is configured to adjust running parameters of the air conditioner according to the compressor running time and the defrost time.

[0134] Optionally, the processing module 303 is specifically configured to determine whether the defrost time is less than a first defrost time threshold if the compressor running time is less than a first running time threshold, and if yes, reduce the defrost entering temperature, and if no, determine whether to reduce a compressor target discharge according to the defrost time and a second defrost time threshold, the second defrost time threshold being greater than the first defrost time threshold.

[0135] ​Optionally, the processing module 303 is specifically configured to reduce the compressor target discharge and reduce the indoor fan rotating speed when the defrosting time is greater than the second defrosting time threshold; and reduce the indoor fan rotating speed when the defrosting time is less than the second defrosting time threshold.

[0136] Optionally, the processing module 303 is further configured to, if the decrease amplitude value of the target operating parameter of the air conditioner is less than a first preset decrease amplitude value, obtain a new target operating parameter according to the first preset decrease amplitude value; control the air conditioner to operate at the new target operating parameter, and reduce the compressor operating frequency, the target operating parameter including the rotating speed of the indoor fan and the compressor target discharge.

[0137] Optionally, the acquisition module 301 is further configured to, if the decrease amplitude value of the compressor operating frequency is greater than or equal to a second preset decrease amplitude value, reacquire the outdoor coil temperature.

[0138] Optionally, the processing module 303 is specifically configured to, if the compressor operating time is greater than a first operating time threshold, determine whether the compressor operating time is greater than a second operating time threshold, wherein the first operating time threshold is less than the second operating time threshold; if yes, increase the compressor target discharge, and adjust the defrosting entering temperature according to the defrosting time, the first defrosting time threshold and the second defrosting time threshold; and if no, adjust the defrosting entering temperature according to the defrosting time, the first defrosting time threshold and the second defrosting time threshold.

[0139] Optionally, the processing module 303 is specifically configured to reduce the defrosting entering temperature when the defrosting time is less than the first defrosting time threshold; and increase the defrosting entering temperature when the defrosting time is greater than the second defrosting time threshold.

[0140] Optionally, the acquisition module 301 is further configured to, if the increase amplitude value of the compressor target discharge is greater than or equal to a preset increase amplitude value of the compressor target discharge, reacquire the outdoor coil temperature.

[0141] The processing module 303 is further configured to, if the increase amplitude value of the compressor target discharge is less than the preset increase amplitude value of the compressor target discharge, obtain a new compressor target discharge according to the preset increase amplitude value, and control the compressor to operate at the new compressor target discharge.

[0142] Figure 4 A structure schematic diagram of the defrosting control device is provided in the present application. As shown in ​ The present application provides a defrosting control device, which comprises a receiver 401, a transmitter 402, a processor 403 and a memory 404.

[0143] a receiver 401 configured to receive instructions and data;

[0144] a transmitter 402 configured to transmit instructions and data;

[0145] a memory 404 configured to store computer-executable instructions;

[0146] a processor 403 configured to execute the computer-executable instructions stored in the memory 404 to implement each step of the defrosting control method performed by the defrosting control device in the above-described embodiments. For details, refer to the related description in the foregoing defrosting control method embodiments.

[0147] Optionally, the memory 404 can be independent or integrated with the processor 403.

[0148] When the memory 404 is independently arranged, the electronic device further includes a bus configured to connect the memory 404 and the processor 403.

[0149] The present application also provides a computer-readable storage medium, which stores computer-executable instructions. When the processor executes the computer-executable instructions, the defrosting control method performed by the defrosting control device as described above is implemented.

[0150] Those skilled in the art can understand that all or some of the steps in the method disclosed above, the functional modules / units in the system and the device can be implemented as software, firmware, hardware and appropriate combinations thereof. In the hardware implementation, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component can have multiple functions, or one function or step can be performed by several physical components in cooperation. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer readable medium, which can include computer storage media (or non-transitory media) and communication media (or transitory media). As known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as known to those skilled in the art, communication media typically includes computer readable instructions, data structures, program modules or other data in modulated data signals such as carrier waves or other transport mechanisms, and can include any information delivery medium.

[0151] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A defrosting control method characterized by, The method comprises the following steps: obtaining a current defrosting entering temperature according to an outdoor environment temperature; performing a defrosting operation when an outdoor coil temperature is less than the defrosting entering temperature, and obtaining a compressor running time; obtaining a defrosting time after the defrosting operation is completed, wherein the defrosting time refers to a time during which the air conditioner performs the defrosting operation; if the compressor running time is less than a first running time threshold, determining whether the defrosting time is less than a first defrosting time threshold, and if yes, reducing the defrosting entering temperature; if no, determining whether to reduce a compressor target discharge according to the defrosting time and a second defrosting time threshold, wherein the second defrosting time threshold is greater than the first defrosting time threshold; if the compressor running time is greater than the first running time threshold, determining whether the compressor running time is greater than a second running time threshold, wherein the first running time threshold is less than the second running time threshold; if yes, increasing the compressor target discharge, and adjusting the defrosting entering temperature according to the defrosting time, the first defrosting time threshold and the second defrosting time threshold; if no, adjusting the defrosting entering temperature according to the defrosting time, the first defrosting time threshold and the second defrosting time threshold; the step of determining whether to reduce the compressor target discharge according to the defrosting time and the second defrosting time threshold comprises: reducing the compressor target discharge and reducing an indoor fan rotating speed when the defrosting time is greater than the second defrosting time threshold; reducing the indoor fan rotating speed when the defrosting time is less than the second defrosting time threshold.

2. The method of claim 1, wherein, after the indoor fan rotating speed is reduced, the method further comprises: if a reduction range value of a target running parameter of the air conditioner is less than a first preset reduction range value, obtaining a new target running parameter according to the first preset reduction range value; controlling the air conditioner to run at the new target running parameter, and reducing a compressor running frequency, wherein the target running parameter comprises the indoor fan rotating speed and the compressor target discharge; if a reduction range value of the compressor running frequency is greater than or equal to a second preset reduction range value, re-obtaining the outdoor coil temperature.

3. The method of claim 1, wherein, the step of adjusting the defrosting entering temperature according to the defrosting time, the first defrosting time threshold and the second defrosting time threshold comprises: reducing the defrosting entering temperature when the defrosting time is less than the first defrosting time threshold; increasing the defrosting entering temperature when the defrosting time is greater than the second defrosting time threshold.

4. The method of claim 1, wherein, after the compressor target discharge is increased, the method further comprises: if an increase range value of the compressor target discharge is greater than or equal to a preset increase range value of the compressor target discharge, re-obtaining the outdoor coil temperature; if the increase range value of the compressor target discharge is less than the preset increase range value of the compressor target discharge, obtaining a new compressor target discharge according to the preset increase range value, controlling the compressor to run at the new compressor target discharge, and re-obtaining the outdoor coil temperature.

5. A defrosting control device characterized by comprising: The method comprises the following steps: obtaining a current defrosting entering temperature according to an outdoor environment temperature by using an obtaining module; performing a defrosting operation when an outdoor coil temperature is less than the defrosting entering temperature by using a defrosting module; The acquisition module is further configured to acquire a compressor operation time and a defrosting time after the defrosting operation is completed, wherein the defrosting time refers to a time for which the air conditioner performs the defrosting operation. The processing module is configured to, if the compressor operation time is less than a first operation time threshold, determine whether the defrosting time is less than a first defrosting time threshold, and if yes, reduce a defrosting entering temperature; and if no, determine whether to reduce a compressor target discharge according to the defrosting time and a second defrosting time threshold, the second defrosting time threshold being greater than the first defrosting time threshold; and if the compressor operation time is greater than the first operation time threshold, determine whether the compressor operation time is greater than a second operation time threshold, the first operation time threshold being less than the second operation time threshold; if yes, increase the compressor target discharge and adjust the defrosting entering temperature according to the defrosting time, the first defrosting time threshold and the second defrosting time threshold; and if no, adjust the defrosting entering temperature according to the defrosting time, the first defrosting time threshold and the second defrosting time threshold. The processing module is specifically configured to, if the defrosting time is greater than the second defrosting time threshold, reduce the compressor target discharge and reduce a speed of an indoor fan; and if the defrosting time is less than the second defrosting time threshold, reduce the speed of the indoor fan.

6. A defrosting control apparatus characterized by comprising: It comprises: a memory; a processor; wherein the memory stores computer execution instructions; the processor executes the computer execution instructions stored in the memory to realize the defrosting control method in any one of claims 1-4.

7. A computer storage medium, characterized in that The computer storage medium stores computer execution instructions, and the computer execution instructions are executed by the processor to realize the defrosting control method in any one of claims 1-4.

8. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to realize the defrosting control method in any one of claims 1-4.

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