Fan rotating speed control method, device, equipment and medium

Abstract

The application provides a fan rotating speed control method, device, equipment and medium, to solve the technical problem that when the outdoor heat exchanger has more frost or the indoor environment temperature is close to the set temperature, the air outlet temperature will continue to decrease, and the frost speed of the outdoor heat exchanger will be accelerated, which seriously affects the thermal comfort experience of the user. The method comprises the following steps: when the indoor environment temperature reaches the set temperature but does not reach the compressor shutdown temperature or when the air conditioner is frosting, determining a first temperature difference value of the indoor environment temperature and the compressor shutdown temperature; determining a fan rotating speed adjustment value based on the first temperature difference value; and adjusting the rotating speed of the fan by using the fan rotating speed adjustment value.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a fan speed control method, device, equipment, and medium. Background Technology

[0002] Currently, during the heating operation of conventional inverter air conditioners, the indoor fan speed continuously runs at the set speed. If the user sets a high fan speed, when there is a lot of frost on the outdoor heat exchanger or the indoor ambient temperature is close to the set temperature, not only will the air outlet temperature continue to decrease, but the frost rate of the outdoor heat exchanger will also be accelerated, seriously affecting the user's thermal comfort experience. Summary of the Invention

[0003] This invention provides a fan speed control method, device, equipment, and medium to solve the technical problem in related technologies that when there is a lot of frost on the outdoor heat exchanger or the indoor ambient temperature is close to the set temperature, not only will the outlet air temperature continue to decrease, but the frost rate of the outdoor heat exchanger will also be accelerated, which will seriously affect the user's thermal comfort experience.

[0004] In a first aspect, embodiments of the present invention provide a fan speed control method, the method comprising:

[0005] When the indoor ambient temperature reaches the set temperature but does not reach the compressor shutdown temperature, or when the air conditioner is frosting, determine the first temperature difference between the indoor ambient temperature and the compressor shutdown temperature;

[0006] The fan speed adjustment value is determined based on the first temperature difference;

[0007] Adjust the fan speed using the fan speed adjustment value.

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

[0009] Based on the pre-set correspondence between the 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 one possible implementation, the method provided in this embodiment of the invention, based on a pre-set correspondence between a fan speed adjustment value and a first temperature difference, determines the fan speed adjustment value corresponding to the first temperature difference, and further includes:

[0011] 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;

[0012] 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.

[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 one possible implementation, the method provided in this embodiment of the invention, when the indoor ambient temperature reaches a set temperature but has not reached the compressor shutdown temperature, determines a first temperature difference between the indoor ambient temperature and the compressor shutdown temperature, including:

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

[0016] When the indoor ambient temperature is lower than the set temperature but higher than the compressor's cooling shutdown temperature, the difference between the indoor ambient temperature and the compressor's cooling shutdown temperature is determined as the first temperature difference value.

[0017] In one possible implementation, the method provided in this embodiment of the invention, when the indoor ambient temperature reaches a set temperature but has not reached the compressor shutdown temperature, determines a first temperature difference between the indoor ambient temperature and the compressor shutdown temperature, including:

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

[0019] When the indoor ambient temperature is higher than the set temperature but lower than the compressor's hot-stop temperature, the difference between the compressor's hot-stop temperature and the indoor ambient temperature is determined as the first temperature difference.

[0020] In one possible implementation, the method provided in this embodiment of the invention, when the air conditioner is frosting, determines a first temperature difference between the indoor ambient temperature and the compressor shutdown temperature, including:

[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 degree of frost formation of the air conditioner is determined, and the first temperature difference is determined based on the difference between the compressor's heating shutdown temperature and the indoor ambient temperature.

[0023] In one possible implementation, the method provided in this embodiment of the invention 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, adjust the fan speed regulation value.

[0026] In one possible implementation, the method provided in this embodiment of the invention, when the outdoor ambient temperature and the outdoor heat exchanger temperature meet preset conditions, corrects the fan speed adjustment value, including:

[0027] When the outdoor ambient temperature and the outdoor heat exchanger temperature meet the preset conditions, the correction value is determined based on the outdoor ambient temperature and the outdoor heat exchanger temperature.

[0028] Adjust the fan speed regulation value according to the correction value.

[0029] In a second aspect, embodiments of the present invention provide a fan speed control device, comprising:

[0030] The first determining unit 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 frosting.

[0031] The second determining unit is used to determine the fan speed adjustment value based on the first temperature difference;

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

[0033] In one possible implementation, the second determining unit in the apparatus provided by the embodiments of the present invention is specifically used for:

[0034] Based on the pre-set correspondence between the 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 one possible implementation, the second determining unit in the apparatus provided by the embodiments of the present invention is specifically used for:

[0036] 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;

[0037] 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.

[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 one possible implementation, the second determining unit in the apparatus provided by the embodiments of the present invention is specifically used for:

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

[0041] When the indoor ambient temperature is lower than the set temperature but higher than the compressor's cooling shutdown temperature, the difference between the indoor ambient temperature and the compressor's cooling shutdown temperature is determined as the first temperature difference value.

[0042] In one possible implementation, the second determining unit in the apparatus provided by the embodiments of the present invention is specifically used for:

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

[0044] When the indoor ambient temperature is higher than the set temperature but lower than the compressor's hot-stop temperature, the difference between the compressor's hot-stop temperature and the indoor ambient temperature is determined as the first temperature difference.

[0045] In one possible implementation, the second determining unit in the apparatus provided by the embodiments of the present invention is specifically used for:

[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 degree of frost formation of the air conditioner is determined, and the first temperature difference is determined based on the difference between the compressor's heating shutdown temperature and the indoor ambient temperature.

[0048] In one possible implementation, the apparatus provided in this embodiment of the invention further includes:

[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, adjust the fan speed regulation value.

[0051] In one possible implementation, the second determining unit in the apparatus provided by the embodiments of the present invention is specifically used for:

[0052] When the outdoor ambient temperature and the outdoor heat exchanger temperature meet the preset conditions, the correction value is determined based on the outdoor ambient temperature and the outdoor heat exchanger temperature.

[0053] Adjust the fan speed regulation value according to the correction value.

[0054] Thirdly, embodiments of the present invention provide an electronic device, including: 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 present invention.

[0055] Fourthly, embodiments of the present invention provide a computer-readable storage medium having stored thereon computer program instructions that, when executed by a processor, implement the method provided in the first aspect of the present invention.

[0056] In this embodiment of the invention, firstly, when the indoor ambient temperature reaches the set temperature but not the compressor shutdown temperature, or when the air conditioner is frosting, a first temperature difference between the indoor ambient temperature and the compressor shutdown temperature is determined. Then, a fan speed adjustment value is determined based on the first temperature difference. Finally, the fan speed is adjusted using the fan speed adjustment value. Compared with related technologies, this method can adjust the indoor fan speed in real time according to the air conditioner's operating status, significantly improving comfort while alleviating the problem of frosting on the external heat exchanger when heating in low temperatures. Attached Figure Description

[0057] Figure 1 A flowchart illustrating a fan speed control method provided in an embodiment of the present invention;

[0058] Figure 2 This is a schematic flowchart illustrating a method for controlling fan speed during refrigeration, as provided in an embodiment of the present invention.

[0059] Figure 3 This is a schematic flowchart illustrating a method for controlling fan speed during heating, as provided in an embodiment of the present invention.

[0060] Figure 4 This is a schematic flowchart illustrating a method for controlling fan speed during frosting, as provided in an embodiment of the present invention.

[0061] Figure 5 This is a schematic diagram of a fan speed control device provided in an embodiment of the present invention;

[0062] Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0063] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

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

[0065] 1. In the embodiments of this invention, the term "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. The character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0066] Currently, during the heating operation of conventional inverter air conditioners, the indoor fan speed continuously runs at the set speed. If the user sets a high fan speed, when there is a lot of frost on the outdoor heat exchanger or the indoor ambient temperature is close to the set temperature, not only will the air outlet temperature continue to decrease, but the frost rate 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 will be described in more detail below with reference to the accompanying drawings and embodiments.

[0068] This invention provides a method for controlling the speed of a fan, such as... Figure 1 As shown, it includes:

[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 frosting, determine the first temperature difference between the indoor ambient temperature and the compressor stop temperature.

[0070] In specific implementation, this step involves determining the first temperature difference between the indoor ambient temperature and the compressor shutdown temperature in three situations: the first is when the air conditioner is cooling, and the indoor ambient temperature is lower than the set temperature but higher than the compressor's cooling shutdown temperature; the second is when the air conditioner is heating, and the indoor ambient temperature is higher than the set temperature but lower than the compressor's heating shutdown temperature; and the third is when the air conditioner is frosting. In all three of these situations, 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: Determine the fan speed adjustment value based on the first temperature difference.

[0072] In practice, the fan speed adjustment value corresponding to the first temperature difference is determined based on the pre-set correspondence between the fan speed adjustment value and the first temperature difference. This correspondence can be a function or a pre-set 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 a first temperature threshold and greater than a second temperature threshold, the fan speed adjustment value is determined to be a first adjustment value; when the first temperature difference is less than the second temperature threshold and greater than a third temperature threshold, the fan speed adjustment value is determined to be a second adjustment value; and when the first temperature difference is less than the third temperature threshold, the fan speed adjustment value is determined to be a 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, if the air conditioner is in heating mode and the indoor ambient temperature is higher than the set temperature but lower than the compressor's heating shutdown temperature, and frost is found to be forming, the fan speed adjustment value can be adjusted according to the outdoor ambient temperature and the outdoor heat exchanger temperature to alleviate the frost problem.

[0075] Step S103: Adjust the fan speed using the fan speed adjustment value.

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

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

[0078] Step S201: When the air conditioner is in cooling mode, the indoor ambient temperature is obtained in real time.

[0079] Step S202: When the indoor ambient temperature is lower than the set temperature but higher than the compressor cooling shutdown temperature, the difference between the indoor ambient temperature and the compressor cooling shutdown temperature is determined as the first temperature difference value.

[0080] In specific implementation, when the indoor ambient temperature value obtained in step S201 is between the set temperature and the compressor cooling shutdown temperature, the difference between the indoor ambient temperature and the compressor cooling shutdown temperature is calculated as the first temperature difference value, 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: Determine the fan speed adjustment value based on the first temperature difference.

[0082] In specific implementation, the fan speed adjustment value ΔR is determined based on the pre-set correspondence between the fan speed adjustment value and the first temperature difference value, and ΔT. This correspondence can be a linear function relationship, such as ΔR = A - ΔT; or ΔR = B / ΔT + C, where A, B, and C are constants. The specific values ​​can be set according to actual needs. This correspondence can also be a lookup table. For example, if it is necessary to accurately set the value for each stage, or if 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 as 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 as the second adjustment value. When the first temperature difference is less than the third temperature threshold, the fan speed adjustment value is determined as the third adjustment value, where 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 one example, the air conditioner's compressor shut-off temperature is 3°C higher than the user-set temperature. The corresponding relationship between ΔT and ΔR is as follows:

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

[0085] Where ΔR1 < ΔR2, the value of ΔR1 can usually be 200 rpm (revolutions per minute) and the value of ΔR2 can be 300 rpm, or it can be set to other data. The specific settings are based on the actual usage and the air conditioner model. This embodiment of the invention does not limit this.

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

[0087] 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 less 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 This means adjusting the fan speed to the next speed setting. When 1℃≤ΔT<2℃, the difference between the current fan speed and the next speed setting is compared to ΔR2. When 0℃<ΔT<1℃, the difference between the current fan speed and the next speed setting is compared to ΔR2.

[0089] Step S204: Adjust the fan speed using the fan speed adjustment value.

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

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

[0092] Step S301: When the air conditioner is in heating mode, the indoor ambient temperature is obtained in real time.

[0093] Step S302: When the indoor ambient temperature is greater than the set temperature but less than the compressor's hot-stop temperature, the difference between the compressor's hot-stop temperature and the indoor ambient temperature is determined to be the 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 hot-stop temperature, the difference between the compressor hot-stop temperature and the indoor ambient temperature is calculated as the first temperature difference value, 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: Determine the fan speed adjustment value based on the first temperature difference.

[0096] In specific implementation, the fan speed adjustment value ΔR is determined based on the pre-set correspondence between the fan speed adjustment value and the first temperature difference value, and ΔT. This correspondence can be a linear function relationship, such as ΔR = A - ΔT; or ΔR = B / ΔT + C, where A, B, and C are constants. The specific values ​​can be set according to actual needs. This correspondence can also be a lookup table. For example, if it is necessary to accurately set the value for each stage, or if 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 as 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 as the second adjustment value. When the first temperature difference is less than the third temperature threshold, the fan speed adjustment value is determined as the third adjustment value, where 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 one example, the air conditioner's compressor shut-off temperature is 3°C higher than the user-set temperature. The corresponding relationship between ΔT and ΔR is shown below:

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

[0099] Where ΔR1 < ΔR2, the value of ΔR1 can usually be 200 rpm (revolutions per minute) and the value of ΔR2 can be 300 rpm, or it can be set to other data. The specific settings are based on the actual usage and the air conditioner model. This embodiment of the invention does not limit this.

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

[0101] 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 less 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 This means adjusting the fan speed to the next speed setting. When 1℃≤ΔT<2℃, the difference between the current fan speed and the next speed setting is compared to ΔR2. When 0℃<ΔT<1℃, the difference between the current fan speed and the next speed setting is compared to ΔR2.

[0103] In this step, if the air conditioner is frosting, the fan speed can be further adjusted by modifying the fan speed regulation value to alleviate frosting. After the air conditioner is first powered on and the compressor runs continuously for a period of time in heating mode, if the outdoor heat exchanger temperature T is continuously measured 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 determined to be in a scenario with thick frost.

[0104] <![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 ]]> <![CDATA[T4≤T 外环 <T3]]> <![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] Where T5 < T4 < T3 < T2 < T1, the specific values ​​can be set according to actual needs.

[0106] If the air conditioner is determined to be in a scenario with thick frost, then during heating operation, if the indoor heat exchanger pipe temperature T 内管 If ≥Tn1 (usually set to 32℃-35℃), then based on the difference between the indoor ambient temperature and the set temperature, as well as the outdoor ambient temperature, the fan speed adjustment value ΔR is adjusted at the current fan speed, as follows:

[0107] 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 rotational speed decreases, if ΔT > 3℃ and the indoor heat exchanger tube temperature T 内管 <T n2 (Usually set to 28℃-30℃), the indoor fan speed increases at regular intervals until it returns to the set speed. When the indoor heat exchanger tube temperature meets T within a certain time period... 内管 ≥T n1 Then, the speed correction control is re-executed to alleviate the frosting problem.

[0109] Step S304: Adjust the fan speed using the fan speed adjustment value.

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

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

[0112] Step S401: Obtain the outdoor ambient 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 degree of frost on the air conditioner, and use the difference between the compressor's heating shutdown temperature and the indoor ambient temperature as the first temperature difference value.

[0114] In practice, after the air conditioner is first powered on and the compressor has been running continuously for a period of time in heating mode, if the outdoor heat exchanger temperature T is measured continuously 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 determined to be in a scenario with thick frost, as shown in the table below, which sets five levels for judging the degree of frost on the air conditioner.

[0115] <![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 ]]> <![CDATA[T4≤T 外环 <T3]]> <![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] Where T5 < T4 < T3 < T2 < T1, the specific values ​​can be set according to actual needs.

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

[0118] In practice, if the air conditioner is judged to be in a thick frost situation based on the degree of frost buildup, and during heating operation, if the indoor heat exchanger tube temperature T... 内管 If ≥Tn1 (usually set to 32℃-35℃), then based on the difference between the indoor ambient temperature and the set temperature, as well as the outdoor ambient temperature, the fan speed adjustment value ΔR is adjusted at the current fan speed, as follows:

[0119] 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: Adjust the fan speed using the fan speed adjustment value.

[0122] In practice, 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 as 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 frosting.

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

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

[0127] In one possible implementation, the second determining unit 502 in the apparatus provided by the embodiments of the present invention is specifically used for:

[0128] Based on the pre-set correspondence between the 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 one possible implementation, the second determining unit 502 in the apparatus provided by the embodiments of the present invention is specifically used for:

[0130] 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;

[0131] 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.

[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 one possible implementation, the second determining unit 502 in the apparatus provided by the embodiments of the present invention is specifically used for:

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

[0135] When the indoor ambient temperature is lower than the set temperature but higher than the compressor's cooling shutdown temperature, the difference between the indoor ambient temperature and the compressor's cooling shutdown temperature is determined as the first temperature difference value.

[0136] In one possible implementation, the second determining unit 502 in the apparatus provided by the embodiments of the present invention is specifically used for:

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

[0138] When the indoor ambient temperature is higher than the set temperature but lower than the compressor's hot-stop temperature, the difference between the compressor's hot-stop temperature and the indoor ambient temperature is determined as the first temperature difference.

[0139] In one possible implementation, the second determining unit 502 in the apparatus provided by the embodiments of the present invention is specifically used for:

[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 degree of frost formation of the air conditioner is determined, and the first temperature difference is determined based on the difference between the compressor's heating shutdown temperature and the indoor ambient temperature.

[0142] In one possible implementation, the second determining unit 502 in the apparatus provided by the embodiments of the present invention further includes:

[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, adjust the fan speed regulation value.

[0145] In one possible implementation, the second determining unit 502 in the apparatus provided by the embodiments of the present invention is specifically used for:

[0146] When the outdoor ambient temperature and the outdoor heat exchanger temperature meet the preset conditions, the correction value is determined based on the outdoor ambient temperature and the outdoor heat exchanger temperature.

[0147] Adjust the fan speed regulation value according to the correction value.

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

[0149] The following is a detailed reference. Figure 6 It shows a schematic diagram of a structure suitable for implementing the electronic device 600 in the embodiments of this disclosure. Figure 6 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments disclosed herein.

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

[0151] Typically, the following devices can be connected to I / O interface 605: input devices 606 including, for example, touchscreens, touchpads, keyboards, mice, cameras, microphones, accelerometers, gyroscopes, etc.; output devices 607 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 608 including, for example, magnetic tapes, hard disks, etc.; and communication devices 609. Communication device 609 allows electronic device 600 to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 6 An electronic device 600 with various devices is shown; however, it should be understood that it is not required to implement or possess all of the devices shown. More or fewer devices may be implemented or possessed alternatively.

[0152] In particular, according to embodiments of this disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this disclosure include a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts, thereby implementing the voice control method as described above. In such embodiments, the computer program can be downloaded and installed from a network via a communication device 609, or installed from a storage device 608, or installed from a ROM 602. When the computer program is executed by the processing device 601, it performs the functions defined in the methods of embodiments of this disclosure.

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

[0154] In some implementations, clients and servers can communicate using any currently known or future-developed network protocol such as HTTP (Hypertext Transfer Protocol) and can interconnect with digital data communication (e.g., communication networks) of any form or medium. Examples of communication networks include local area networks (“LANs”), wide area networks (“WANs”), the Internet (e.g., the Internet of Things), and peer-to-peer networks (e.g., ad hoc peer-to-peer networks), as well as any currently known or future-developed networks.

[0155] The aforementioned computer-readable medium may be included in the aforementioned electronic device; or it may exist independently and not assembled into the electronic device.

[0156] The aforementioned computer-readable medium carries one or more programs that, when executed by the electronic device, cause the electronic device to:

[0157] When the indoor ambient temperature reaches the set temperature but does not reach the compressor shutdown temperature, or when the air conditioner is frosting, determine the first temperature difference between the indoor ambient temperature and the compressor shutdown temperature;

[0158] The fan speed adjustment value is determined based on the first temperature difference;

[0159] Adjust the fan speed using the fan speed adjustment value.

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

[0161] Computer program code for performing the operations of this disclosure can 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, and C++, as well as conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0162] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0163] The units described in the embodiments of this disclosure can be implemented in software or hardware. The names of the units are not, in some cases, intended to limit the specific unit.

[0164] The functions described above in this document can be performed, at least in part, by one or more hardware logic components. For example, exemplary types of hardware logic components that can be used, without limitation, include: Field Programmable Gate Arrays (FPGAs), Application-Specific Integrated Circuits (ASICs), Application Standard Products (ASSPs), System-on-Chip (SoCs), Complex Programmable Logic Devices (CPLDs), and so on.

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

[0166] In this embodiment of the invention, firstly, when the indoor ambient temperature reaches the set temperature but not the compressor shutdown temperature, or when the air conditioner is frosting, a first temperature difference between the indoor ambient temperature and the compressor shutdown temperature is determined. Then, a fan speed adjustment value is determined based on the first temperature difference. Finally, the fan speed is adjusted using the fan speed adjustment value. Compared with related technologies, this method can adjust the indoor fan speed in real time according to the air conditioner's operating status, significantly improving comfort while alleviating the problem of frosting on the external heat exchanger when heating in low temperatures.

[0167] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0168] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0169] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0170] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0171] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the invention.

[0172] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method for controlling the speed of a fan, characterized in that, include: When the indoor ambient temperature reaches the set temperature but does not reach the compressor shutdown temperature, a first temperature difference between the indoor ambient temperature and the compressor shutdown temperature is determined, including: when the air conditioner is in heating mode and the indoor ambient temperature is greater than the set temperature but less than the compressor heating shutdown temperature, if the air conditioner frosts, the fan speed adjustment value is corrected according to the outdoor ambient temperature and the outdoor heat exchanger temperature. The internal fan speed adjustment value is determined based on the first temperature difference, wherein the internal fan speed adjustment value decreases as the first temperature difference increases; The speed of the internal fan is adjusted using the internal fan speed adjustment value.

2. The fan speed control method according to claim 1, characterized in that, The step of determining the internal fan speed adjustment value based on the first temperature difference includes: Based on the pre-set correspondence between the internal fan speed adjustment value and the first temperature difference, the internal fan speed adjustment value corresponding to the first temperature difference is determined.

3. The fan speed control method according to claim 2, characterized in that, The step of determining the internal fan speed adjustment value corresponding to the first temperature difference based on the pre-set correspondence between the internal fan speed adjustment value and the first temperature difference value further includes: When the first temperature difference is less than the first temperature threshold and greater than the second temperature threshold, the internal 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 internal 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 internal 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 has not reached the compressor shutdown temperature, determining the first temperature difference between the indoor ambient temperature and the compressor shutdown temperature includes: The indoor ambient temperature is acquired in real time when the air conditioner is in cooling mode; When the indoor ambient temperature is lower than the set temperature but higher than the compressor cooling shutdown temperature, the difference between the indoor ambient temperature and the compressor cooling shutdown temperature is determined to be the first temperature difference. And / or, When the air conditioner is in heating mode, the indoor ambient temperature is acquired in real time; When the indoor ambient temperature is greater than the set temperature but less than the compressor's heating shutdown temperature, the difference between the compressor's heating 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, The method further 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 degree of frost formation of the air conditioner is determined, and the first temperature difference is determined based on the difference between the compressor's heating shutdown temperature and the indoor ambient temperature.

6. The fan speed control method according to claim 4, characterized in that, The method further includes: Obtain the outdoor ambient temperature and the outdoor heat exchanger temperature; When the outdoor ambient temperature and the outdoor heat exchanger temperature meet the preset conditions, the internal 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, the adjustment value of the indoor fan speed is corrected, including: When the outdoor ambient temperature and the outdoor heat exchanger temperature meet preset conditions, a correction value is determined based on the outdoor ambient temperature and the outdoor heat exchanger temperature. The internal fan speed adjustment value is adjusted according to the correction value.

8. A fan speed control device, characterized in that, include: The first determining unit is used to determine a first temperature difference between the indoor ambient temperature and the compressor shutdown temperature when the indoor ambient temperature reaches the set temperature but does not reach the compressor shutdown temperature. This includes: when the air conditioner is in heating mode and the indoor ambient temperature is greater than the set temperature but less than the compressor heating shutdown temperature, if the air conditioner frosts, then the fan speed adjustment value is corrected according to the outdoor ambient temperature and the outdoor heat exchanger temperature. The second determining unit is used to determine the internal fan speed adjustment value based on the first temperature difference, wherein the internal fan speed adjustment value decreases as the first temperature difference increases; The processing unit is used to adjust the speed of the internal fan using the internal 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, which, when executed by the processor, implement the method as described in any one of claims 1-7.

10. A computer-readable storage medium having computer program instructions stored thereon, characterized in that, The method as described in any one of claims 1-7 is implemented when the computer program instructions are executed by the processor.

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