Fan rotating speed control method, device and equipment and medium

Abstract

The invention provides a fan rotating speed control method, device and equipment and a medium, and aims to solve the technical problems that in the related technology, when an outdoor heat exchanger is frosted much or the indoor environment temperature is close to the set temperature, the air outlet temperature can be continuously reduced, the frosting speed of the outdoor heat exchanger can be increased, and the thermal comfort experience of a user is seriously affected. The method comprises the steps that when the indoor environment temperature reaches the set temperature but does not reach the compressor shutdown temperature or an air conditioner is frosted, a first temperature difference value between the indoor environment temperature and the compressor shutdown temperature is determined; determining a fan rotating speed adjusting value based on the first temperature difference value; and the rotating speed of the fan is adjusted through the fan rotating speed adjusting value.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a fan speed control method, device, equipment and medium. Background Art

[0002] During the heating operation of current conventional variable-frequency air conditioners, the internal fan speed continues to run at the set speed. If the user sets the wind speed higher, when the outdoor heat exchanger is frosted or the indoor ambient temperature is close to the set temperature, not only will the air outlet temperature continue to decrease, but the frost speed of the outdoor heat exchanger will also be accelerated, seriously affecting the user's thermal comfort experience. Summary of the invention

[0003] The present invention provides a fan speed control method, device, equipment and medium to solve the technical problem in the related art that when the outdoor heat exchanger is heavily frosted or the indoor ambient temperature is close to the set temperature, not only the air outlet temperature will continue to decrease, but also the frosting speed of the outdoor heat exchanger will be accelerated, seriously affecting the user's thermal comfort experience.

[0004] In a first aspect, an embodiment of the present invention provides a method for controlling a fan speed, the method comprising:

[0005] When the indoor ambient temperature reaches the set temperature but does not reach the compressor stop temperature or when the air conditioner is frosted, determining a first temperature difference between the indoor ambient temperature and the compressor stop temperature;

[0006] determining a fan speed adjustment value based on the first temperature difference;

[0007] Use the fan speed adjustment value to adjust the fan speed.

[0008] In a possible implementation manner, in the method provided in an embodiment of the present invention, determining a fan speed adjustment value based on the first temperature difference includes:

[0009] Based on the correspondence between the preset fan speed adjustment value and the first temperature difference, the fan speed adjustment value corresponding to the first temperature difference is determined, wherein the fan speed adjustment value decreases as the first temperature difference increases.

[0010] In a possible implementation manner, in the method provided in the embodiment of the present invention, based on the correspondence between the preset fan speed adjustment value and the first temperature difference, determining the fan speed adjustment value corresponding to the first temperature difference also includes:

[0011] When the first temperature difference is less than the first temperature threshold and greater than the second temperature threshold, determining the fan speed adjustment value to be the first adjustment value;

[0012] When the first temperature difference is less than the second temperature threshold and greater than the third temperature threshold, determining the fan speed adjustment value to be the second adjustment value;

[0013] When the first temperature difference is less than the third temperature threshold, the fan speed adjustment value is determined to be the third adjustment value, wherein the third temperature threshold is less than the second temperature threshold, the second temperature threshold is less than the first temperature threshold, the first adjustment value is less than the second adjustment value, and the second adjustment value is less than the third adjustment value.

[0014] In a possible implementation manner, in the method provided by an embodiment of the present invention, when the indoor ambient temperature reaches a set temperature but does not reach a compressor shutdown temperature, determining a first temperature difference between the indoor ambient temperature and the compressor shutdown temperature includes:

[0015] When the air conditioner is in cooling state, obtain the indoor ambient temperature in real time;

[0016] When the indoor ambient temperature is lower than the set temperature and higher than the compressor refrigeration stop temperature, the difference between the indoor ambient temperature and the compressor refrigeration stop temperature is determined to be a first temperature difference.

[0017] In a possible implementation manner, in the method provided by an embodiment of the present invention, when the indoor ambient temperature reaches a set temperature but does not reach a compressor shutdown temperature, determining a first temperature difference between the indoor ambient temperature and the compressor shutdown temperature includes:

[0018] When the air conditioner is in heating state, obtain the indoor ambient temperature in real time;

[0019] When the indoor ambient temperature is greater than the set temperature and less than the compressor heating shutdown temperature, the difference between the compressor heating shutdown temperature and the indoor ambient temperature is determined to be a first temperature difference.

[0020] In a possible implementation, in the method provided by an embodiment of the present invention, when the air conditioner is frosted, determining a first temperature difference between the indoor ambient temperature and the compressor shutdown temperature includes:

[0021] Obtain the outdoor ambient temperature and the outdoor heat exchanger temperature;

[0022] When the outdoor ambient temperature and the outdoor heat exchanger temperature meet the preset conditions, the frosting degree of the air conditioner is determined, and the difference between the compressor heating shutdown temperature and the indoor ambient temperature is set as the first temperature difference.

[0023] In a possible implementation, in the method provided by the embodiment of the present invention, the method further includes:

[0024] Obtain the outdoor ambient temperature and the outdoor heat exchanger temperature;

[0025] When the outdoor ambient temperature and the outdoor heat exchanger temperature meet the preset conditions, the fan speed adjustment value is corrected.

[0026] In a possible implementation, in the method provided by the embodiment of the present invention, when the outdoor ambient temperature and the outdoor heat exchanger temperature meet the preset conditions, the fan speed adjustment value is corrected, including:

[0027] When the outdoor ambient temperature and the outdoor heat exchanger temperature meet the preset conditions, determining the correction value based on the outdoor ambient temperature and the outdoor heat exchanger temperature;

[0028] Correct the fan speed adjustment value according to the correction value.

[0029] In a second aspect, an embodiment of the present invention provides a fan speed control device, comprising:

[0030] A first determining unit, for determining a first temperature difference between the indoor ambient temperature and the compressor stop temperature when the indoor ambient temperature reaches a set temperature but does not reach a compressor stop temperature or when the air conditioner is frosted;

[0031] A second determining unit, configured to determine a fan speed adjustment value based on the first temperature difference;

[0032] The processing unit is used to adjust the speed of the fan using the fan speed adjustment value.

[0033] In a possible implementation manner, in the device provided by the embodiment of the present invention, the second determining unit is specifically configured to:

[0034] Based on the correspondence between the preset fan speed adjustment value and the first temperature difference, the fan speed adjustment value corresponding to the first temperature difference is determined, wherein the fan speed adjustment value decreases as the first temperature difference increases.

[0035] In a possible implementation manner, in the device provided by the embodiment of the present invention, the second determining unit is specifically configured to:

[0036] When the first temperature difference is less than the first temperature threshold and greater than the second temperature threshold, determining the fan speed adjustment value to be the first adjustment value;

[0037] When the first temperature difference is less than the second temperature threshold and greater than the third temperature threshold, determining the fan speed adjustment value to be the second adjustment value;

[0038] When the first temperature difference is less than the third temperature threshold, the fan speed adjustment value is determined to be the third adjustment value, wherein the third temperature threshold is less than the second temperature threshold, the second temperature threshold is less than the first temperature threshold, the first adjustment value is less than the second adjustment value, and the second adjustment value is less than the third adjustment value.

[0039] In a possible implementation manner, in the device provided by the embodiment of the present invention, the second determining unit is specifically configured to:

[0040] When the air conditioner is in cooling state, obtain the indoor ambient temperature in real time;

[0041] When the indoor ambient temperature is lower than the set temperature and higher than the compressor refrigeration stop temperature, the difference between the indoor ambient temperature and the compressor refrigeration stop temperature is determined to be a first temperature difference.

[0042] In a possible implementation manner, in the device provided by the embodiment of the present invention, the second determining unit is specifically configured to:

[0043] When the air conditioner is in heating state, obtain the indoor ambient temperature in real time;

[0044] When the indoor ambient temperature is greater than the set temperature and less than the compressor heating shutdown temperature, the difference between the compressor heating shutdown temperature and the indoor ambient temperature is determined to be a first temperature difference.

[0045] In a possible implementation manner, in the device provided by the embodiment of the present invention, the second determining unit is specifically configured to:

[0046] Obtain the outdoor ambient temperature and the outdoor heat exchanger temperature;

[0047] When the outdoor ambient temperature and the outdoor heat exchanger temperature meet the preset conditions, the frosting degree of the air conditioner is determined, and the difference between the compressor heating shutdown temperature and the indoor ambient temperature is set as the first temperature difference.

[0048] In a possible implementation manner, in the device provided by the embodiment of the present invention, the second determining unit further specifically:

[0049] Obtain the outdoor ambient temperature and the outdoor heat exchanger temperature;

[0050] When the outdoor ambient temperature and the outdoor heat exchanger temperature meet the preset conditions, the fan speed adjustment value is corrected.

[0051] In a possible implementation manner, in the device provided by the embodiment of the present invention, the second determining unit is specifically configured to:

[0052] When the outdoor ambient temperature and the outdoor heat exchanger temperature meet the preset conditions, determining the correction value based on the outdoor ambient temperature and the outdoor heat exchanger temperature;

[0053] Correct the fan speed adjustment value according to the correction value.

[0054] In a third aspect, an embodiment of the present invention provides an electronic device, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory, which, when executed by the processor, implement the method provided in the first aspect of the embodiment of the present invention.

[0055] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, implements the method provided in the first aspect of the embodiment of the present invention.

[0056] In the embodiment of the present invention, when the indoor ambient temperature reaches the set temperature but does not reach the compressor shutdown temperature or when the air conditioner is frosted, the first temperature difference between the indoor ambient temperature and the compressor shutdown temperature is determined, and then the fan speed adjustment value is determined based on the first temperature difference, and finally the fan speed is adjusted using the fan speed adjustment value. Compared with the related art, the internal fan speed can be adjusted in real time according to the operating state of the air conditioner, which greatly improves the comfort and can alleviate the problem of frosting of the external heat exchanger caused by heating at low temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 A schematic flow chart of a fan speed control method provided by an embodiment of the present invention;

[0058] Figure 2 A schematic diagram of a specific flow chart of a method for controlling fan speed during cooling provided by an embodiment of the present invention;

[0059] Figure 3 A schematic diagram of a specific flow chart of a method for controlling fan speed during heating provided by an embodiment of the present invention;

[0060] Figure 4 A schematic diagram of a specific flow chart of a method for controlling fan speed during frosting provided by an embodiment of the present invention;

[0061] Figure 5 A schematic structural diagram of a fan speed control device provided by an embodiment of the present invention;

[0062] Figure 6 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] The following are explanations of some of the terms that appear in the text:

[0065] 1. In the embodiments of the present invention, the term "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0066] During the heating operation of current conventional variable-frequency air conditioners, the internal fan speed continues to run at the set speed. If the user sets the wind speed higher, when the outdoor heat exchanger is frosted or the indoor ambient temperature is close to the set temperature, not only will the air outlet temperature continue to decrease, but the frost speed of the outdoor heat exchanger will also be accelerated, seriously affecting the user's thermal comfort experience.

[0067] The fan speed control method, device, equipment and medium provided by the present invention are described in more detail below in conjunction with the accompanying drawings and embodiments.

[0068] The embodiment of the present invention provides a method for controlling the speed of a fan. Figure 1 As shown, including:

[0069] Step S101, when the indoor ambient temperature reaches the set temperature but does not reach the compressor stop temperature or when the air conditioner is frosted, determine a first temperature difference between the indoor ambient temperature and the compressor stop temperature.

[0070] During specific implementation, in this step, the first temperature difference between the indoor ambient temperature and the compressor shutdown temperature is determined in three cases. The first is when the air conditioner is cooling, and the indoor ambient temperature is less than the set temperature and greater than the compressor cooling shutdown temperature. The second is when the air conditioner is heating, and the indoor ambient temperature is greater than the set temperature and less than the compressor heating shutdown temperature. The third is when the air conditioner is frosted. In the following three states, it is necessary to determine the first temperature difference between the indoor ambient temperature and the compressor shutdown temperature to control the fan speed.

[0071] Step S102: determining a fan speed adjustment value based on the first temperature difference.

[0072] In specific implementation, the fan speed adjustment value corresponding to the first temperature difference is determined according to the correspondence between the preset fan speed adjustment value and the first temperature difference. The correspondence can be a functional relationship or a preset table. The fan speed adjustment value decreases as the first temperature difference increases.

[0073] In one possible implementation, when the first temperature difference is less than the first temperature threshold and greater than the second temperature threshold, the fan speed adjustment value is determined to be the first adjustment value; when the first temperature difference is less than the second temperature threshold and greater than the third temperature threshold, the fan speed adjustment value is determined to be the second adjustment value; when the first temperature difference is less than the third temperature threshold, the fan speed adjustment value is determined to be the third adjustment value, wherein the third temperature threshold is less than the second temperature threshold, the second temperature threshold is less than the first temperature threshold, the first adjustment value is less than the second adjustment value, and the second adjustment value is less than the third adjustment value.

[0074] In addition, when the air conditioner is in heating state and the indoor ambient temperature is greater than the set temperature and less than the compressor heating shutdown temperature, if the air conditioner is found to have frosting problems at this time, the fan speed adjustment value can be corrected according to the outdoor ambient temperature and the outdoor heat exchanger temperature to alleviate the frosting problem.

[0075] Step S103, adjusting the fan speed using the fan speed adjustment value.

[0076] In specific implementation, the adjusted fan speed is obtained by subtracting the fan speed adjustment value from the original fan speed.

[0077] like Figure 2 As shown, the specific process of the fan speed control method during cooling provided by the embodiment of the present invention may include the following steps:

[0078] Step S201, when the air conditioner is in cooling state, the indoor ambient temperature is obtained in real time.

[0079] Step S202: when the indoor ambient temperature is lower than the set temperature and higher than the compressor cooling stop temperature, determine the difference between the indoor ambient temperature and the compressor cooling stop temperature as a first temperature difference.

[0080] In specific implementation, when the indoor ambient temperature value obtained in step S201 is between the set temperature and the compressor refrigeration stop temperature, the difference between the indoor ambient temperature and the compressor refrigeration stop temperature is calculated as a first temperature difference, which can be expressed as ΔT, ΔT=T 室内环境温度 -T 压缩机停机温度 .

[0081] Step S203: determining a fan speed adjustment value based on the first temperature difference.

[0082] In a specific implementation, the fan speed adjustment value ΔR is determined according to the correspondence between the preset fan speed adjustment value and the first temperature difference and ΔT. The correspondence may be a linear function relationship, for example, ΔR=A-ΔT; or ΔR=B / ΔT+C, wherein A, B, and C are all constants, and the specific values ​​may be set according to actual needs. The correspondence may also be a query table, for example, it is necessary to accurately set the values ​​of each stage, or the air conditioner is not suitable for stepless speed adjustment. The determination method is as follows: when the first temperature difference is less than the first temperature threshold and greater than the second temperature threshold, the fan speed adjustment value is determined to be the first adjustment value; when the first temperature difference is less than the second temperature threshold and greater than the third temperature threshold, the fan speed adjustment value is determined to be the second adjustment value; when the first temperature difference is less than the third temperature threshold, the fan speed adjustment value is determined to be the third adjustment value, wherein the third temperature threshold is less than the second temperature threshold, the second temperature threshold is less than the first temperature threshold, the first adjustment value is less than the second adjustment value, and the second adjustment value is less than the third adjustment value.

[0083] In an example, the compressor shutdown temperature of the air conditioner is 3°C higher than the temperature set by the user, and the corresponding relationship between ΔT and ΔR is as follows:

[0084] ΔT ΔR 2℃≤ΔT<3℃ <![CDATA[ΔR1]]> 1℃≤ΔT<2℃ <![CDATA[ΔR2]]> 0℃<ΔT<1℃ <![CDATA[ΔR2]]>

[0085] Wherein ΔR1<ΔR2, usually the value of ΔR1 can be 200rpm (revolutions per minute) and the value of ΔR2 can be 300rpm, or can be set to other data, which is specifically set according to actual usage and air conditioner model, and the embodiment of the present invention does not limit this.

[0086] In another example, if the difference between the current windshield speed and the next windshield speed is considered, the corresponding relationship between ΔT and ΔR is as follows:

[0087] ΔT ΔR 2℃≤ΔT<3℃ <![CDATA[Min{ΔR1,R 当前风档转速 -R 当前风档下一档转速 }]]> 1℃≤ΔT<2℃ <![CDATA[Min{ΔR2,R 当前风档转速 -R 当前风档下一档转速 }]]> 0℃<ΔT<1℃ <![CDATA[Max{ΔR2,R 当前风档转速 -R 当前风档下一档转速 }]]>

[0088] Where ΔR1<ΔR2, when 2℃≤ΔT<3℃, if the difference between the current windshield speed and the next windshield speed is smaller than ΔR1, the fan speed adjustment value is directly set to R 当前风档转速 -R 当前风档下一档转速 , that is, to adjust the fan speed to the next speed, when 1℃≤ΔT<2℃, compare the difference ratio ΔR2 between the current windshield speed and the next windshield speed, when 0℃<ΔT<1℃, compare the difference ratio ΔR2 between the current windshield speed and the next windshield speed.

[0089] Step S204, adjusting the fan speed using the fan speed adjustment value.

[0090] In specific implementation, the adjusted fan speed is obtained by subtracting the fan speed adjustment value from the original fan speed.

[0091] like Figure 3 As shown, the specific process of the fan speed control method during heating provided by the embodiment of the present invention may include the following steps:

[0092] Step S301, when the air conditioner is in heating state, the indoor ambient temperature is obtained in real time.

[0093] Step S302: When the indoor ambient temperature is greater than the set temperature and less than the compressor thermal shutdown temperature, determine the difference between the compressor thermal shutdown temperature and the indoor ambient temperature as a first temperature difference.

[0094] In specific implementation, when the indoor ambient temperature value obtained in step S301 is between the set temperature and the compressor thermal shutdown temperature, the difference between the compressor thermal shutdown temperature and the indoor ambient temperature is calculated as a first temperature difference, which can be expressed as ΔT, ΔT=T 压缩机停机温度 -T 室内环境温度 .

[0095] Step S303: determining a fan speed adjustment value based on the first temperature difference.

[0096] In a specific implementation, the fan speed adjustment value ΔR is determined according to the correspondence between the preset fan speed adjustment value and the first temperature difference and ΔT. The correspondence may be a linear function relationship, for example, ΔR=A-ΔT; or ΔR=B / ΔT+C, wherein A, B, and C are all constants, and the specific values ​​may be set according to actual needs. The correspondence may also be a query table, for example, it is necessary to accurately set the values ​​of each stage, or the air conditioner is not suitable for stepless speed adjustment. The determination method is as follows: when the first temperature difference is less than the first temperature threshold and greater than the second temperature threshold, the fan speed adjustment value is determined to be the first adjustment value; when the first temperature difference is less than the second temperature threshold and greater than the third temperature threshold, the fan speed adjustment value is determined to be the second adjustment value; when the first temperature difference is less than the third temperature threshold, the fan speed adjustment value is determined to be the third adjustment value, wherein the third temperature threshold is less than the second temperature threshold, the second temperature threshold is less than the first temperature threshold, the first adjustment value is less than the second adjustment value, and the second adjustment value is less than the third adjustment value.

[0097] In an example, the compressor shutdown temperature of the air conditioner is 3°C higher than the temperature set by the user. The corresponding relationship between ΔT and ΔR is as follows:

[0098] ΔT ΔR 2℃≤ΔT<3℃ <![CDATA[ΔR1]]> 1℃≤ΔT<2℃ <![CDATA[ΔR2]]> 0℃<ΔT<1℃ <![CDATA[ΔR2]]>

[0099] Wherein ΔR1<ΔR2, usually the value of ΔR1 can be 200rpm (revolutions per minute) and the value of ΔR2 can be 300rpm, or can be set to other data, which is specifically set according to actual usage and air conditioner model, and the embodiment of the present invention does not limit this.

[0100] In another example, if the difference between the current windshield speed and the next windshield speed is considered, the corresponding relationship between ΔT and ΔR is as follows:

[0101] ΔT ΔR 2℃≤ΔT<3℃ <![CDATA[Min{ΔR1,R 当前风档转速 -R 当前风档下一档转速 }]]> 1℃≤ΔT<2℃ <![CDATA[Min{ΔR2,R 当前风档转速 -R 当前风档下一档转速 }]]> 0℃<ΔT<1℃ <![CDATA[Max{ΔR2,R 当前风档转速 -R 当前风档下一档转速 }]]>

[0102] Where ΔR1<ΔR2, when 2℃≤ΔT<3℃, if the difference between the current windshield speed and the next windshield speed is smaller than ΔR1, the fan speed adjustment value is directly set to R 当前风档转速 -R 当前风档下一档转速 , that is, to adjust the fan speed to the next speed, when 1℃≤ΔT<2℃, compare the difference ratio ΔR2 between the current windshield speed and the next windshield speed, when 0℃<ΔT<1℃, compare the difference ratio ΔR2 between the current windshield speed and the next windshield speed.

[0103] In this step, when the air conditioner is frosted, the fan speed can be further adjusted by correcting the fan speed adjustment value to alleviate frosting. 外管 and outdoor ambient temperature T 外环 If the following temperature conditions are met, the air conditioner is judged to be in a thick frosting scene.

[0104] Outdoor ambient temperature Outdoor pipe temperature <![CDATA[T1≤T 外环 ]]> <![CDATA[T 外管 ≤T 进入化霜温度1 -T 结霜较厚条件下化霜进入温度补偿 ]]> <![CDATA[T2≤T 外环 <T1]]> <![CDATA[T 外管 ≤T 进入化霜温度2 -T 结霜较厚条件下化霜进入温度补偿 ]]> <![CDATA[T3≤T 外环 <T2]]> <![CDATA[T 外管 ≤T 进入化霜温度3 -T 结霜较厚条件下化霜进入温度补偿 ]]> <h2 style=";text-align:left;direction:ltr"><![CDATA[T4≤T <h2 style=";text-align:left;direction:ltr"> 外环 <h2 style=";text-align:left;direction:ltr"> <T3]]><h2 style=";text-align:left;direction:ltr"> <![CDATA[T 外管 ≤T 进入化霜温度4 -T 结霜较厚条件下化霜进入温度补偿 <!-- 6 -->]]> <![CDATA[T5≤T 外环 <T4]]> <![CDATA[T 外管 ≤T 进入化霜温度5 -T 结霜较厚条件下化霜进入温度补偿 ]]>

[0105] Among them, T5<T4<T3<T2<T1, and the specific value can be set according to actual needs.

[0106] If the air conditioner is judged to be in a thick frosting scene, during the heating operation, if the indoor heat exchanger tube temperature T 内管 ≥Tn1 (usually set to 32℃-35℃), then according to the difference between the indoor ambient temperature and the set temperature and the outdoor ambient temperature, the fan speed adjustment value ΔR is corrected at the current wind speed, as follows:

[0107] <![CDATA[T1≤T 外环 ]]> <![CDATA[T2≤T 外环 <T1]]> <![CDATA[T3≤T 外环 <T2]]> <h2 style=";text-align:left;direction:ltr"><![CDATA[T4≤T <h2 style=";text-align:left;direction:ltr"> 外环 <h2 style=";text-align:left;direction:ltr"> <T3]]><h2 style=";text-align:left;direction:ltr"> <![CDATA[T5≤T 外环 <T4]]> ΔT>3℃ 0 0 0 0 0 2℃≤ΔT<3℃ <![CDATA[ΔR1+ΔR b1 ]]> <![CDATA[ΔR1+ΔR b1 ]]> <![CDATA[ΔR1]]> <![CDATA[ΔR1]]> <![CDATA[ΔR1]]> 1℃≤ΔT<2℃ <![CDATA[ΔR1+ΔR b2 ]]> <![CDATA[ΔR1+ΔR b1 ]]> <![CDATA[ΔR1+ΔR b1 ]]> <![CDATA[ΔR1]]> <![CDATA[ΔR1]]> 0℃≤ΔT<1℃ <![CDATA[ΔR2+ΔR b3 ]]> <![CDATA[ΔR2+ΔR b3 ]]> <![CDATA[ΔR2+ΔR b2 ]]> <![CDATA[ΔR2+ΔR b2 ]]> <![CDATA[ΔR2]]>

[0108] Where ΔR b1 <ΔR b2 <ΔR b3 , after the speed is reduced, if ΔT>3℃ and the indoor heat exchanger tube temperature T 内管 <T n2 (usually set to 28℃-30℃), the indoor fan speed will increase at a certain interval until it returns to the set speed. When the indoor heat exchanger tube temperature meets T 内管 ≥T n1 , and then re-execute the speed correction control to alleviate the frosting problem.

[0109] Step S304, adjusting the fan speed using the fan speed adjustment value.

[0110] In specific implementation, the adjusted fan speed is obtained by subtracting the fan speed adjustment value from the original fan speed.

[0111] like Figure 4 As shown, the specific process of the fan speed control method during frosting provided by the embodiment of the present invention may include the following steps:

[0112] Step S401, obtaining the outdoor environment temperature and the outdoor heat exchanger temperature.

[0113] Step S402, when the outdoor ambient temperature and the outdoor heat exchanger temperature meet the preset conditions, determine the frosting degree of the air conditioner, and use the difference between the compressor heating shutdown temperature and the indoor ambient temperature as the first temperature difference.

[0114] In specific implementation, after the air conditioner is powered on for the first time and the heating compressor has been running continuously for a period of time, if the outdoor heat exchanger temperature T is detected for a period of time 外管 and outdoor ambient temperature T 外环 If the following temperature conditions are met, the air conditioner is judged to be in a scene with heavy frost. For example, as shown in the following table, five levels of air conditioner frost degree judgment are set.

[0115] Outdoor ambient temperature Outdoor pipe temperature <![CDATA[T1≤T 外环 ]]> <![CDATA[T 外管 ≤T 进入化霜温度1 -T 结霜较厚条件下化霜进入温度补偿 ]]> <![CDATA[T2≤T 外环 <T1]]> <![CDATA[T 外管 ≤T 进入化霜温度2 -T 结霜较厚条件下化霜进入温度补偿 ]]> <![CDATA[T3≤T 外环 <T2]]> <![CDATA[T 外管 ≤T 进入化霜温度3 -T 结霜较厚条件下化霜进入温度补偿 ]]> <h2 style=";text-align:left;direction:ltr"><![CDATA[T4≤T <h2 style=";text-align:left;direction:ltr"> 外环 <h2 style=";text-align:left;direction:ltr"> <T3]]><h2 style=";text-align:left;direction:ltr"> <![CDATA[T 外管 ≤T 进入化霜温度4 -T 结霜较厚条件下化霜进入温度补偿 ]]> <![CDATA[T5≤T 外环 <T4]]> <![CDATA[T 外管 ≤T 进入化霜温度5 -T 结霜较厚条件下化霜进入温度补偿 ]]>

[0116] Among them, T5<T4<T3<T2<T1, and the specific value can be set according to actual needs.

[0117] Step S403: determining a fan speed adjustment value based on the first temperature difference.

[0118] In specific implementation, if the air conditioner is judged to be in a thick frosting scene according to the frosting degree of the air conditioner, and during the heating operation, if the indoor heat exchanger tube temperature T 内管 ≥Tn1 (usually set to 32℃-35℃), then according to the difference between the indoor ambient temperature and the set temperature and the outdoor ambient temperature, the fan speed adjustment value ΔR is corrected at the current wind speed, as follows:

[0119] <![CDATA[T1≤T 外环 ]]> <![CDATA[T2≤T 外环 <T1]]> <![CDATA[T3≤T 外环 <T2]]> <h2 style=";text-align:left;direction:ltr"><![CDATA[T4≤T <h2 style=";text-align:left;direction:ltr"> 外环 <h2 style=";text-align:left;direction:ltr"> <T3]]><h2 style=";text-align:left;direction:ltr"> <![CDATA[T5≤T 外环 <T4]]> ΔT>3℃ 0 0 0 0 0 2℃≤ΔT<3℃ <![CDATA[ΔR3+ΔR b5 ]]> <![CDATA[ΔR3+ΔR b4 ]]> <![CDATA[ΔR3+ΔR b4 ]]> <![CDATA[ΔR3]]> <![CDATA[ΔR3 <!-- 7 -->]]> 0℃≤ΔT<1℃ <![CDATA[ΔR4+ΔR b6 ]]> <![CDATA[ΔR4+ΔR b6 ]]> <![CDATA[ΔR4+ΔR b5 ]]> <![CDATA[ΔR4+ΔR b5 ]]> <![CDATA[ΔR4]]>

[0120] Where ΔR b4 <ΔR b5 <ΔR b6 , ΔR3<ΔR4.

[0121] Step S404, adjusting the fan speed using the fan speed adjustment value.

[0122] In specific implementation, the adjusted fan speed is obtained by subtracting the fan speed adjustment value from the original fan speed.

[0123] like Figure 5 As shown, based on the same inventive concept of the fan speed control method, the present invention also provides a fan speed control device, comprising:

[0124] The first determining unit 501 is used to determine a first temperature difference between the indoor ambient temperature and the compressor stop temperature when the indoor ambient temperature reaches the set temperature but does not reach the compressor stop temperature or when the air conditioner is frosted;

[0125] A second determining unit 502 is used to determine a fan speed adjustment value based on the first temperature difference;

[0126] The processing unit 503 is used to adjust the speed of the fan using the fan speed adjustment value.

[0127] In a possible implementation manner, in the device provided by the embodiment of the present invention, the second determining unit 502 is specifically configured to:

[0128] Based on the correspondence between the preset fan speed adjustment value and the first temperature difference, the fan speed adjustment value corresponding to the first temperature difference is determined, wherein the fan speed adjustment value decreases as the first temperature difference increases.

[0129] In a possible implementation manner, in the device provided by the embodiment of the present invention, the second determining unit 502 is specifically configured to:

[0130] When the first temperature difference is less than the first temperature threshold and greater than the second temperature threshold, determining the fan speed adjustment value to be the first adjustment value;

[0131] When the first temperature difference is less than the second temperature threshold and greater than the third temperature threshold, determining the fan speed adjustment value to be the second adjustment value;

[0132] When the first temperature difference is less than the third temperature threshold, the fan speed adjustment value is determined to be the third adjustment value, wherein the third temperature threshold is less than the second temperature threshold, the second temperature threshold is less than the first temperature threshold, the first adjustment value is less than the second adjustment value, and the second adjustment value is less than the third adjustment value.

[0133] In a possible implementation manner, in the device provided by the embodiment of the present invention, the second determining unit 502 is specifically configured to:

[0134] When the air conditioner is in cooling state, obtain the indoor ambient temperature in real time;

[0135] When the indoor ambient temperature is lower than the set temperature and higher than the compressor refrigeration stop temperature, the difference between the indoor ambient temperature and the compressor refrigeration stop temperature is determined to be a first temperature difference.

[0136] In a possible implementation manner, in the device provided by the embodiment of the present invention, the second determining unit 502 is specifically configured to:

[0137] When the air conditioner is in heating state, obtain the indoor ambient temperature in real time;

[0138] When the indoor ambient temperature is greater than the set temperature and less than the compressor heating shutdown temperature, the difference between the compressor heating shutdown temperature and the indoor ambient temperature is determined to be a first temperature difference.

[0139] In a possible implementation manner, in the device provided by the embodiment of the present invention, the second determining unit 502 is specifically configured to:

[0140] Obtain the outdoor ambient temperature and the outdoor heat exchanger temperature;

[0141] When the outdoor ambient temperature and the outdoor heat exchanger temperature meet the preset conditions, the frosting degree of the air conditioner is determined, and the difference between the compressor heating shutdown temperature and the indoor ambient temperature is set as the first temperature difference.

[0142] In a possible implementation manner, in the device provided by the embodiment of the present invention, the second determining unit 502 further specifically:

[0143] Obtain the outdoor ambient temperature and the outdoor heat exchanger temperature;

[0144] When the outdoor ambient temperature and the outdoor heat exchanger temperature meet the preset conditions, the fan speed adjustment value is corrected.

[0145] In a possible implementation manner, in the device provided by the embodiment of the present invention, the second determining unit 502 is specifically configured to:

[0146] When the outdoor ambient temperature and the outdoor heat exchanger temperature meet the preset conditions, determining the correction value based on the outdoor ambient temperature and the outdoor heat exchanger temperature;

[0147] Correct the fan speed adjustment value according to the correction value.

[0148] In addition, combined Figure 1-Figure 5 The fan speed control method and device described in the embodiments of the present invention may be implemented by an electronic device. Figure 6 A schematic diagram of the hardware structure of an electronic device provided by an embodiment of the present invention is shown.

[0149] The following specific reference Figure 6 , which shows a structural schematic diagram of an electronic device 600 suitable for implementing the embodiments of the present disclosure. Figure 6 The electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present disclosure.

[0150] like Figure 6 As shown, the electronic device 600 may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.) 601, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 602 or a program loaded from a storage device 608 to a random access memory (RAM) 603 to implement the voice control method of the embodiment described in the present disclosure. In the RAM 603, various programs and data required for the operation of the electronic device 600 are also stored. The processing device 601, the ROM 602, and the RAM 603 are connected to each other via a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0151] Typically, the following devices may be connected to the I / O interface 605: an input device 606 including, for example, a touch screen, a touch pad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; an output device 607 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 608 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 609. The communication device 609 may allow the electronic device 600 to communicate with other devices wirelessly or by wire to exchange data. Although Figure 6 The electronic device 600 is shown with various devices, but it should be understood that it is not required to implement or possess all the devices shown. More or fewer devices may be implemented or possessed instead.

[0152] In particular, according to an embodiment of the present disclosure, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a non-transitory computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart, thereby implementing the voice control method as described above. In such an embodiment, the computer program can be downloaded and installed from the network through the communication device 609, or installed from the storage device 608, or installed from the ROM 602. When the computer program is executed by the processing device 601, the above-mentioned functions defined in the method of the embodiment of the present disclosure are executed.

[0153] It should be noted that the computer-readable medium disclosed above may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present disclosure, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, device or device. In the present disclosure, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, in which a computer-readable program code is carried. This propagated data signal may take a variety of forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. The computer readable signal medium may also be any computer readable medium other than a computer readable storage medium, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. The program code contained on the computer readable medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above.

[0154] In some embodiments, the client and the server may communicate using any currently known or future developed network protocol such as HTTP (HyperText Transfer Protocol), and may be interconnected with any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network ("LAN"), a wide area network ("WAN"), an internet (e.g., the Internet), and a peer-to-peer network (e.g., an ad hoc peer-to-peer network), as well as any currently known or future developed network.

[0155] The computer-readable medium may be included in the electronic device, or may exist independently without being incorporated into the electronic device.

[0156] The computer-readable medium carries one or more programs. When the one or more programs are executed by the electronic device, the electronic device:

[0157] When the indoor ambient temperature reaches the set temperature but does not reach the compressor stop temperature or when the air conditioner is frosted, determining a first temperature difference between the indoor ambient temperature and the compressor stop temperature;

[0158] determining a fan speed adjustment value based on the first temperature difference;

[0159] Use the fan speed adjustment value to adjust the fan speed.

[0160] Optionally, when the above one or more programs are executed by the electronic device, the electronic device may also execute other steps described in the above embodiments.

[0161] Computer program code for performing the operations of the present disclosure may be written in one or more programming languages ​​or a combination thereof, including, but not limited to, object-oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate 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 a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0162] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present disclosure. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some implementations as replacements, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0163] The units involved in the embodiments described in the present disclosure may be implemented by software or hardware, wherein the name of a unit does not, in some cases, limit the unit itself.

[0164] The functions described above herein may be performed at least in part by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), and the like.

[0165] In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0166] In the embodiment of the present invention, when the indoor ambient temperature reaches the set temperature but does not reach the compressor shutdown temperature or when the air conditioner is frosted, the first temperature difference between the indoor ambient temperature and the compressor shutdown temperature is determined, and then the fan speed adjustment value is determined based on the first temperature difference, and finally the fan speed is adjusted using the fan speed adjustment value. Compared with the related art, the internal fan speed can be adjusted in real time according to the operating state of the air conditioner, which greatly improves the comfort and can alleviate the problem of frosting of the external heat exchanger caused by heating at low temperatures.

[0167] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0168] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0169] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0170] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0171] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0172] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A fan speed control method, characterized in that: include: When the indoor ambient temperature reaches the set temperature but does not reach the compressor stop temperature or when the air conditioner is frosted, determining a first temperature difference between the indoor ambient temperature and the compressor stop temperature; determining a fan speed adjustment value based on the first temperature difference; The fan speed adjustment value is used to adjust the fan speed.

2. The fan speed control method according to claim 1, characterized in that: The step of determining the fan speed adjustment value based on the first temperature difference includes: Based on the correspondence between the preset fan speed adjustment value and the first temperature difference, the fan speed adjustment value corresponding to the first temperature difference is determined, wherein the fan speed adjustment value decreases as the first temperature difference increases.

3. The fan speed control method according to claim 2, characterized in that: The determining the fan speed adjustment value corresponding to the first temperature difference based on the preset correspondence between the fan speed adjustment value and the first temperature difference also includes: When the first temperature difference is less than a first temperature threshold and greater than a second temperature threshold, determining the fan speed adjustment value to be a first adjustment value; When the first temperature difference is less than the second temperature threshold and greater than the third temperature threshold, determining the fan speed adjustment value to be a second adjustment value; When the first temperature difference is less than the third temperature threshold, the fan speed adjustment value is determined to be the third adjustment value, wherein the third temperature threshold is less than the second temperature threshold, the second temperature threshold is less than the first temperature threshold, the first adjustment value is less than the second adjustment value, and the second adjustment value is less than the third adjustment value.

4. The fan speed control method according to claim 3, characterized in that: When the indoor ambient temperature reaches the set temperature but does not reach the compressor shutdown temperature, determining a first temperature difference between the indoor ambient temperature and the compressor shutdown temperature comprises: When the air conditioner is in cooling state, obtaining the indoor ambient temperature in real time; When the indoor ambient temperature is lower than the set temperature and higher than the compressor refrigeration shutdown temperature, determining the difference between the indoor ambient temperature and the compressor refrigeration shutdown temperature as the first temperature difference; and / or, When the air conditioner is in heating state, obtaining the indoor ambient temperature in real time; When the indoor ambient temperature is greater than the set temperature and less than the compressor thermal shutdown temperature, the difference between the compressor thermal shutdown temperature and the indoor ambient temperature is determined to be the first temperature difference.

5. The fan speed control method according to claim 3, characterized in that: When the air conditioner is frosted, determining a first temperature difference between the indoor ambient temperature and the compressor shutdown temperature includes: Obtain the outdoor ambient temperature and the outdoor heat exchanger temperature; When the outdoor ambient temperature and the outdoor heat exchanger temperature meet preset conditions, the frosting degree of the air conditioner is determined, and the difference between the compressor heating shutdown temperature and the indoor ambient temperature is used as the first temperature difference.

6. The fan speed control method according to claim 4, characterized in that: The method further comprises: Obtain the outdoor ambient temperature and the outdoor heat exchanger temperature; When the outdoor ambient temperature and the outdoor heat exchanger temperature meet preset conditions, the fan speed adjustment value is corrected.

7. The fan speed control method according to claim 6, characterized in that: When the outdoor ambient temperature and the outdoor heat exchanger temperature meet preset conditions, correcting the fan speed adjustment value includes: When the outdoor ambient temperature and the outdoor heat exchanger temperature meet a preset condition, determining a correction value based on the outdoor ambient temperature and the outdoor heat exchanger temperature; The fan speed adjustment value is corrected according to the correction value.

8. A fan speed control device, characterized in that: include: A first determining unit, configured to determine a first temperature difference between the indoor ambient temperature and the compressor stop temperature when the indoor ambient temperature reaches a set temperature but does not reach a compressor stop temperature or when the air conditioner is frosted; a second determining unit, configured to determine a fan speed adjustment value based on the first temperature difference; A processing unit is used to adjust the speed of the fan using the fan speed adjustment value.

9. An electronic device, characterized in that: include: At least one processor, at least one memory and computer program instructions stored in the memory, when the computer program instructions are executed by the processor, implement the method according to any one of claims 1 to 7.

10. A computer-readable storage medium having computer program instructions stored thereon, characterized in that: When the computer program instructions are executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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