WO2023221247A1

WO2023221247A1 - Air conditioner control method and apparatus, and air conditioner and storage medium

Info

Publication number: WO2023221247A1
Application number: PCT/CN2022/101637
Authority: WO
Inventors: 王金锋; 谢李高; 王晓宇
Original assignee: 广东美的制冷设备有限公司; 美的集团股份有限公司
Priority date: 2022-05-19
Filing date: 2022-06-27
Publication date: 2023-11-23
Also published as: CN117128631A

Abstract

An air conditioner control method and apparatus, and an air conditioner and a storage medium, which belong to the technical field of air conditioners. The method comprises: determining a temperature difference according to the current indoor environment temperature and a temperature which is set by a user; determining a retaining time according to the temperature difference; when the current tube temperature of an evaporator (400) is lower than a first preset temperature threshold value, adjusting a fan rotation speed of an indoor fan (500) according to a first preset coefficient, so as to obtain an adjusted fan rotation speed; and controlling the operation of an air conditioner according to the adjusted fan rotation speed and the retaining time.

Description

Air conditioner control method, device, air conditioner and storage medium

This application claims priority to the Chinese patent application with application number 202210545861.2 filed on May 19, 2022, the entire content of which is incorporated into this application by reference.

Technical field

The present application relates to the technical field of air conditioners, and in particular to an air conditioner control method, device, air conditioner and storage medium.

Background technique

In the automatic wind mode, as the room temperature rises, the indoor fan speed decreases, down to 1% as low as possible. At this time, the system load is large, and the frequency will be reduced through T2 pipe temperature determination and the outdoor unit speed will be reduced to adjust the load.

However, under overload heating conditions, due to the high system load, the frequency drops too low under this condition, which can easily cause the compressor to stall and cause abnormal shutdown. In the automatic air mode, the air outlet speed decreases as the room temperature rises, and the minimum is as low as 1% will cause the hot air to float upward, resulting in a short circuit of the return air, an increase in the system load, and a shutdown when the temperature reaches high or the evaporator shuts down due to high temperature. Frequent shutdowns will affect the comfort of consumers.

technical problem

The main purpose of this application is to propose an air conditioner control method, device, air conditioner and storage medium, aiming to solve the technical problem of how to avoid shutdown caused by return air short circuit.

Technical solutions

In order to achieve the above object, this application provides an air conditioner control method. The air conditioner includes an evaporator and an indoor fan. The evaporator is installed outdoors, and the indoor fan is installed indoors. The air conditioner control method includes:

Determine the temperature difference based on the current indoor ambient temperature and the user-set temperature;

Determine the maintenance time according to the temperature difference;

When the current evaporator tube temperature of the evaporator is less than the first preset temperature threshold, adjust the fan speed of the indoor fan according to the first preset coefficient to obtain the adjusted fan speed;

The operation of the air conditioner is controlled according to the adjusted fan speed and the maintenance time.

In one embodiment, controlling the operation of the air conditioner according to the adjusted fan speed and the maintenance time includes:

When the operating time of the air conditioner at the adjusted fan speed reaches the maintenance time, determine whether the current evaporator tube temperature is greater than the first preset temperature threshold;

When the current evaporator tube temperature is less than or equal to the first preset temperature threshold, return to the step of adjusting the fan speed of the indoor fan according to the first preset coefficient.

In one embodiment, after determining whether the current evaporator tube temperature is greater than the first preset temperature threshold, the method further includes:

When the current evaporator tube temperature is greater than the first preset temperature threshold, return to the step of determining the maintenance time based on the temperature difference.

In one embodiment, after determining the maintenance time according to the temperature difference, the method further includes:

When the current evaporator tube temperature is greater than or equal to the first preset temperature threshold, it is determined whether the current evaporator tube temperature is greater than the second preset temperature threshold, and the second preset temperature threshold is greater than the first preset temperature threshold. temperature threshold;

When the current evaporator tube temperature is greater than the second preset temperature threshold, adjust the fan speed of the indoor fan according to the second preset coefficient to obtain the adjusted fan speed;

When the operating time of the air conditioner operating at the adjusted fan speed reaches the maintenance time, determine whether the current evaporator tube temperature is less than the second preset temperature threshold;

When the current evaporator tube temperature is greater than or equal to the second preset temperature threshold, return to the step of adjusting the fan speed of the indoor fan according to the second preset coefficient.

In one embodiment, after determining whether the current evaporator tube temperature is less than the second preset temperature threshold, the method further includes:

When the current evaporator tube temperature is less than the second preset temperature threshold, return to the step of determining the maintenance time based on the temperature difference.

In one embodiment, the air conditioner further includes a compressor, and the compressor is installed outdoors;

After determining the temperature difference based on the current indoor ambient temperature and the user-set temperature, it also includes:

The compressor frequency of the compressor is adjusted according to the temperature difference, so that the current evaporator tube temperature of the evaporator changes with the change of the compressor frequency.

In one embodiment, determining the maintenance time based on the temperature difference includes:

Find the target temperature range corresponding to the temperature difference;

Obtain the time value corresponding to the target temperature range;

The maintenance time is determined based on the time value.

In addition, to achieve the above objectives, this application also proposes an air conditioner control device, which includes:

The information acquisition module is used to determine the temperature difference based on the current indoor ambient temperature and the user-set temperature;

A time determination module, used to determine the maintenance time according to the temperature difference;

The fan adjustment module is used to adjust the fan speed of the indoor fan according to the first preset coefficient to obtain the adjusted fan speed when the current evaporator tube temperature of the evaporator is less than the first preset temperature threshold;

An air conditioning control module is used to control the operation of the air conditioner according to the adjusted fan speed and the maintenance time.

In addition, to achieve the above object, this application also proposes an air conditioner. The air conditioner includes an evaporator and an indoor fan. The evaporator is installed outdoors, and the indoor fan is installed indoors. The air conditioner further includes: A memory, a processor, and an air conditioner control program stored in the memory and executable on the processor. When the air conditioner control program is executed by the processor, the air conditioner control method as described above is implemented.

In addition, to achieve the above object, the present application also proposes a storage medium on which an air conditioner control program is stored. When the air conditioner control program is executed by a processor, the air conditioner control method as described above is implemented.

beneficial effects

In the air conditioner control method proposed in this application, the temperature difference is determined based on the current indoor ambient temperature and the user-set temperature; the maintenance time is determined based on the temperature difference; when the current evaporator tube temperature of the evaporator is less than the first predetermined When the temperature threshold is set, the fan speed of the indoor fan is adjusted according to the first preset coefficient to obtain the adjusted fan speed; the operation of the air conditioner is controlled according to the adjusted fan speed and the maintenance time. This application calculates the maintenance time based on the temperature difference, and adjusts the fan speed of the indoor fan based on the maintenance time, which can avoid the return air short circuit causing the system load to increase, leading to shutdown due to excessive temperature or the evaporator shutting down due to high temperature, thereby avoiding Frequent shutdowns improve system stability and comfort.

Description of the drawings

Figure 1 is a schematic structural diagram of an air conditioner in the hardware operating environment involved in the embodiment of the present application;

Figure 2 is a schematic flow chart of the first embodiment of the air conditioner control method of the present application;

Figure 3 is a schematic diagram of a system device according to an embodiment of the air conditioner control method of the present application;

Figure 4 is a schematic control logic diagram of an embodiment of the air conditioner control method of the present application;

Figure 5 is a schematic flowchart of the second embodiment of the air conditioner control method of the present application;

Figure 6 is a functional module schematic diagram of the first embodiment of the air conditioner control device of the present application.

Explanation of reference numbers:

标号 label	名称 name	标号 label	名称 name
100 100	压缩机 compressor	200 200	四通阀 Four-way valve
300 300	冷凝器 condenser	400 400	蒸发器 Evaporator
500 500	室内风机 indoor fan	600 600	室外风机 outdoor fan
700 700	电子膨胀阀 Electronic expansion valve

The realization of the purpose, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings.

Embodiments of the invention

It should be understood that the specific embodiments described here are only used to explain the present application and are not used to limit the present application.

Referring to Figure 1, Figure 1 is a schematic structural diagram of an air conditioner in the hardware operating environment involved in the embodiment of the present application.

As shown in Figure 1, the air conditioner includes an evaporator and an indoor fan. The evaporator is installed outdoors and the indoor fan is installed indoors. The air conditioner may also include a processor 1001, such as a central processing unit (Central Processing Unit). Processing Unit (CPU), communication bus 1002, user interface 1003, network interface 1004, and memory 1005. Among them, the communication bus 1002 is used to realize connection communication between these components. The user interface 1003 may include a display screen (Display) and input units such as buttons. The optional user interface 1003 may also include standard wired interfaces and wireless interfaces. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may optionally be a storage device independent of the aforementioned processor 1001.

Those skilled in the art can understand that the equipment structure shown in Figure 1 does not limit the air conditioner, and may include more or less components than shown, or combine certain components, or arrange different components.

As shown in Figure 1, memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and an air conditioner control program.

In the air conditioner shown in Figure 1, the network interface 1004 is mainly used to connect to the external network and perform data communication with other network devices; the user interface 1003 is mainly used to connect to user equipment and perform data communication with the user equipment; the equipment of this application The processor 1001 calls the air conditioner control program stored in the memory 1005 and executes the air conditioner control method provided by the embodiment of the present application.

Based on the above hardware structure, an embodiment of the air conditioner control method of the present application is proposed.

Referring to Figure 2, Figure 2 is a schematic flowchart of the first embodiment of the air conditioner control method of the present application.

In a first embodiment, the air conditioner includes an evaporator and an indoor fan. The evaporator is installed outdoors, and the indoor fan is installed indoors. The air conditioner control method includes:

Step S10: Determine the temperature difference based on the current indoor ambient temperature and the user-set temperature.

It should be noted that the execution subject of this embodiment can be the control device of the air conditioner, or other devices that can achieve the same or similar functions. This embodiment is not limited to this. In this embodiment, the control device of the air conditioner is used. The control equipment is taken as an example for explanation.

It should be noted that the air conditioners in this embodiment may include, but are not limited to, multiple types or models of air conditioners such as hanging air conditioners, cabinet air conditioners, and central air conditioners, which are not limited in this embodiment. The user-set temperature in this embodiment can be the required temperature set by the user on the air conditioner. The user can adjust the user-set temperature through the air conditioner remote control or the air conditioner control panel during the use of the air conditioner. The embodiment does not limit this.

It should be understood that, as shown in Figure 3, which is a schematic diagram of the system device, the air conditioner in this embodiment may include an indoor unit and an outdoor unit, the indoor unit is placed indoors, and the outdoor unit is placed outdoors. Wherein, the indoor unit includes: indoor fan 500 and condenser 300, and the outdoor unit includes: compressor 100, four-way valve 200, evaporator 400, outdoor fan 600 and electronic expansion valve 700, and, in addition to those shown in Figure 3 In addition to components, the air conditioner in this embodiment may also include more other components, which is not limited in this embodiment.

It should be noted that this solution is mainly used in the heating mode and the automatic air mode. Therefore, the control logic in this embodiment is only executed when the air conditioner is running in the automatic air heating mode, as shown in Figure 4. Figure 4 Control logic diagram.

It can be understood that when it is detected that the air conditioner is turned on and running in the automatic wind mode for heating, the current indoor ambient temperature T1, the current evaporator tube temperature T2, the fan speed L of the indoor fan, and the compressor operating frequency f can be read in real time.

It should be understood that after obtaining the current indoor ambient temperature T1 and the latest user-set temperature Ttg, the temperature difference C can be calculated based on the current indoor ambient temperature T1 and the user-set temperature Ttg. For example, in a specific implementation, the difference between the current indoor ambient temperature T1 and the user-set temperature Ttg can be calculated in the manner of C=Ttg-T1 to determine the temperature difference C.

It should be understood that after obtaining the temperature difference C, the compressor operating frequency f can be adjusted according to the temperature difference C, so that the compressor operating frequency f changes, and the current evaporator tube temperature T2 changes in the compressor frequency. And changes occur.

In specific implementation, the frequency adjustment rule in this embodiment can be consistent with the existing rule, that is, as the temperature difference C decreases, the compressor operating frequency f also decreases. This embodiment does not limit this.

Step S20: Determine the maintenance time according to the temperature difference.

It should be noted that, in order to achieve better control effect, in this embodiment, the maintenance time can be recalculated based on the temperature difference during each cycle. Among them, corresponding time values can be set for different temperature ranges in advance. After determining the current temperature difference, the corresponding time value can be found according to the target temperature range corresponding to the current temperature difference to determine the maintenance time. In this embodiment There are no restrictions on this.

Step S30: When the current evaporator tube temperature of the evaporator is less than the first preset temperature threshold, the fan speed of the indoor fan is adjusted according to the first preset coefficient to obtain the adjusted fan speed.

It should be noted that the evaporator tube temperature in this embodiment may be the coil temperature of the evaporator, which is not limited in this embodiment.

It should be noted that the first preset temperature threshold K1 and the second preset temperature threshold K2 can be preset according to the actual situation, wherein the second preset temperature threshold K2 is greater than the first preset temperature threshold K1, and K1 and K2 can be set according to Adjustments are required for different models. In this embodiment, K1 is 40 and K2 is 48 for example.

In a specific implementation, in addition to setting the fixed first preset temperature threshold K1 and the second preset temperature threshold K2, the settings of K1 and K2 can also be adjusted according to the current indoor ambient temperature T1, for example, The first value N1 and the second value N2 can be set so that K1=T1+N1 and K2=T1+N2, so that the first preset temperature threshold K1 is dynamically determined through the first value N1 and the current indoor ambient temperature T1. The second preset temperature threshold K2 is dynamically determined based on the binary value N2 and the current indoor ambient temperature T2, which is not limited in this embodiment.

It should be understood that as the temperature difference C decreases and the compressor operating frequency f gradually decreases, the evaporator tube temperature T2 also gradually decreases. When T2 drops to K1, the indoor fan speed is adjusted.

It can be understood that the current evaporator tube temperature T2 can be compared with the first preset temperature threshold K1 to determine whether the current evaporator tube temperature T2 is less than the first preset temperature threshold K1, and when the current evaporator tube temperature When T2 is less than the first preset temperature threshold K1, the indoor fan speed is adjusted according to the first preset coefficient.

It should be noted that the first preset coefficient in this embodiment can be adjusted according to the difference in the maximum rotation speed of different models. In this embodiment, the maximum value of L is 1100 rpm. Therefore, the first preset coefficient can be set to 0.9. , this embodiment does not limit this.

It can be understood that the fan speed can be adjusted by multiplying the first preset coefficient by the fan speed of the indoor fan. For example, the fan speed can be adjusted according to L=0.9*L, that is, the adjusted speed is Speed before adjustment*0.9.

Step S40: Control the operation of the air conditioner according to the adjusted fan speed and the maintenance time.

It should be noted that the operation of the air conditioner can be controlled according to the adjusted fan speed, and the operating time of the air conditioner operating at the adjusted fan speed is recorded. When the operating time reaches the maintenance time, it is judged whether the current evaporator tube temperature T2 is greater than For the first preset temperature threshold K1, if T2>K1, the rotational speed will no longer be adjusted, and the step of determining the maintenance time based on the temperature difference will be returned to execution until the next time T2<K1, the rotational speed will be adjusted again. If T2 ≤ K1, then return to the step of adjusting the fan speed of the indoor fan according to the first preset coefficient, and continue to adjust the speed in the manner of L=0.9*L.

It should be understood that in the automatic wind mode, when the indoor load increases due to changes in ambient temperature, the evaporator tube temperature T2 will also increase. When T2 rises to K2, that is, if the current evaporator tube temperature T2 is greater than or equal to the first preset In the case of temperature threshold K1, it can also be determined whether the current evaporator tube temperature T2 is greater than the second preset temperature threshold K2. If the current evaporator tube temperature T2 is greater than K2, the indoor fan speed is adjusted according to the second preset coefficient.

It should be noted that the second preset coefficient in this embodiment can be adjusted according to the difference in maximum rotation speed of different models. In this embodiment, the maximum value of L is 1100 rpm. Therefore, the second preset coefficient can be set to 100 , this embodiment does not limit this.

It can be understood that the fan speed can be adjusted by adding the second preset coefficient to the fan speed of the indoor fan. For example, the fan speed can be adjusted according to L=L+100, that is, the adjusted speed is The speed before adjustment is +100.

It should be noted that the operation of the air conditioner can be controlled according to the adjusted fan speed, and the operating time of the air conditioner operating at the adjusted fan speed is recorded. When the operating time reaches the maintenance time, it is determined whether the current evaporator tube temperature T2 is less than For the second preset temperature threshold K2, if T2 < K2, the rotation speed will no longer be adjusted, and the step of determining the maintenance time based on the temperature difference will be returned to execution until the next time T2 < K1, the rotation speed will be adjusted again. If T2 ≥ K2, return to the step of adjusting the fan speed of the indoor fan according to the second preset coefficient, and continue to adjust the speed in the manner of L=L+100.

It should be understood that if the current evaporator tube temperature T2 is greater than or equal to the first preset temperature threshold K1 and less than or equal to the second preset temperature threshold K2, then return to the step of determining the maintenance time according to the temperature difference and continue. The temperature comparison step is performed until T2<K1 or T2>K2 occurs, and then different speed control strategies are carried out respectively.

It can be understood that this solution improves the technical deficiencies of the existing technical solution in the automatic air heating mode. The following beneficial effects can be achieved through the control logic of this solution: 1. In the automatic air mode, when the evaporator tube temperature Before T2 drops to K1, it operates at the highest wind speed to fully stir the indoor air and improve the uniformity of room temperature, thereby reducing the difference between the outlet air temperature and the surrounding room temperature and improving the heating and air pressure effect. 2. During the adjustment process when the indoor fan speed decreases, the adjustment is made by multiplying the coefficients. This adjustment method can be adjusted quickly in the initial stage. As the room temperature approaches the set temperature, the adjustment range decreases, which is conducive to the stability of the adjustment, and stipulates The windshield is reduced only when the evaporator tube temperature T2 is lower than K1, which is beneficial to fully exchanging heat for the indoor evaporator and improving the energy saving effect. At the same time, the system load is maintained at an appropriate level when the compressor is running at low frequency, which is beneficial to preventing Excessive load causes evaporator high-temperature shutdown protection/compressor stalling, improving system operation stability.

In this embodiment, the temperature difference is determined based on the current indoor ambient temperature and the user-set temperature; the maintenance time is determined based on the temperature difference; when the current evaporator tube temperature of the evaporator is less than the first preset temperature threshold , adjust the fan speed of the indoor fan according to the first preset coefficient to obtain the adjusted fan speed; control the operation of the air conditioner according to the adjusted fan speed and the maintenance time. This solution calculates the maintenance time based on the temperature difference, and adjusts the fan speed of the indoor fan based on the maintenance time, which can avoid the return air short circuit causing an increase in the system load, which may lead to shutdown due to excessive temperatures or shutdown of the evaporator due to high temperature, thereby avoiding Frequent shutdowns improve system stability and comfort.

In one embodiment, as shown in Figure 5, a second embodiment of the air conditioner control method of the present application is proposed based on the first embodiment. The air conditioner further includes a compressor, and the compressor is installed outdoors;

The step S20 includes:

Step S201: Find the target temperature range corresponding to the temperature difference.

Table 1 Correspondence table between temperature range and time

C=Ttg-T1 C=Ttg-T1	Tc Tc
C＜1.5 C<1.5	150 150
1.5≤C＜3 1.5≤C＜3	120 120
C≥3 C≥3	90 90

It should be noted that Table 1 is a table of correspondence between temperature range and time. Corresponding temperature ranges can be set in advance for different temperature differences. For example, the first temperature range can be set to C<1.5, and the second temperature range can be set to 1.5≤C<3, the third temperature range is set to C≥3, which is not limited in this embodiment.

It should be noted that after setting the temperature range, you can also set the corresponding time value for each temperature range. For example, set the time value corresponding to the first time range to 150, and set the time value corresponding to the second time range to 120. , set the time value corresponding to the third time range to 90, which is not limited in this embodiment.

It can be understood that after determining the current temperature difference, the target temperature range corresponding to the temperature difference can be found through Table 1. For example, if the current temperature difference is 2, the current temperature difference can be determined according to Table 1 The corresponding target temperature range is the second temperature range.

Step S202: Obtain the time value corresponding to the target temperature range.

It should be understood that after the target temperature range is determined in the above manner, the time value corresponding to the target temperature range can also be searched according to Table 1. For example, if the target temperature range is the second temperature range, the time value corresponding to the target temperature range is 120.

Step S203: Determine the maintenance time according to the time value.

It should be understood that in this embodiment, the maintenance time can be determined according to the time value corresponding to the target temperature range, so that in the case of different temperature differences, an appropriate maintenance time can be selected for subsequent adjustment of the indoor fan speed. to achieve better adjustment results.

In this embodiment, the target temperature range corresponding to the temperature difference is searched, the time value corresponding to the target temperature range is obtained, and the maintenance time is determined based on the time value, so that the target temperature range corresponding to the temperature difference can be accurately determined. Determine the maintenance time accurately and improve the indoor fan speed adjustment effect.

In addition, embodiments of the present application also provide a storage medium on which an air conditioner control program is stored. When the air conditioner control program is executed by a processor, the steps of the air conditioner control method described above are implemented.

Since this storage medium adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described again here.

In addition, referring to Figure 6, the embodiment of the present application also proposes an air conditioner control device. The air conditioner control device includes:

The information acquisition module 10 is used to determine the temperature difference according to the current indoor ambient temperature and the user-set temperature.

The time determination module 20 is used to determine the maintenance time according to the temperature difference.

The fan adjustment module 30 is used to adjust the fan speed of the indoor fan according to the first preset coefficient to obtain the adjusted fan speed when the current evaporator tube temperature of the evaporator is less than the first preset temperature threshold.

The air conditioning control module 40 is used to control the operation of the air conditioner according to the adjusted fan speed and the maintenance time.

For other embodiments or specific implementation methods of the air conditioner control device described in this application, reference may be made to the above method embodiments, which will not be described again here.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article or apparatus that includes that element.

The above serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments.

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the existing technology can be embodied in the form of a software product. The estimating machine software product is stored in an estimating machine readable storage medium as described above. (such as ROM/RAM, magnetic disk, optical disk), including several instructions to cause an intelligent device (which can be a mobile phone, computer, air conditioner, or network air conditioner, etc.) to execute the methods described in various embodiments of this application. .

The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of the present application may be directly or indirectly used in other related technical fields. , are all equally included in the patent protection scope of this application.

Claims

An air conditioner control method, wherein the air conditioner includes an evaporator and an indoor fan, the evaporator is installed outdoors, and the indoor fan is installed indoors. The air conditioner control method includes:

Determine the temperature difference based on the current indoor ambient temperature and the user-set temperature;

Determine the maintenance time according to the temperature difference;

When the current evaporator tube temperature of the evaporator is less than the first preset temperature threshold, adjust the fan speed of the indoor fan according to the first preset coefficient to obtain the adjusted fan speed; and

The operation of the air conditioner is controlled according to the adjusted fan speed and the maintenance time.
The air conditioner control method according to claim 1, wherein the controlling the operation of the air conditioner according to the adjusted fan speed and the maintenance time includes:

When the operating time of the air conditioner operating at the adjusted fan speed reaches the maintenance time, determine whether the current evaporator tube temperature is greater than the first preset temperature threshold; and

When the current evaporator tube temperature is less than or equal to the first preset temperature threshold, return to the step of adjusting the fan speed of the indoor fan according to the first preset coefficient.
The air conditioner control method according to claim 2, wherein after determining whether the current evaporator tube temperature is greater than the first preset temperature threshold, the method further includes:

When the current evaporator tube temperature is greater than the first preset temperature threshold, return to the step of determining the maintenance time based on the temperature difference.
The air conditioner control method according to claim 1, wherein after determining the maintenance time according to the temperature difference, it further includes:

When the current evaporator tube temperature is greater than or equal to the first preset temperature threshold, it is determined whether the current evaporator tube temperature is greater than the second preset temperature threshold, and the second preset temperature threshold is greater than the first preset temperature threshold. temperature threshold;

When the current evaporator tube temperature is greater than the second preset temperature threshold, adjust the fan speed of the indoor fan according to the second preset coefficient to obtain the adjusted fan speed;

When the operating time of the air conditioner operating at the adjusted fan speed reaches the maintenance time, determine whether the current evaporator tube temperature is less than the second preset temperature threshold; and

When the current evaporator tube temperature is greater than or equal to the second preset temperature threshold, return to the step of adjusting the fan speed of the indoor fan according to the second preset coefficient.
The air conditioner control method according to claim 4, wherein after determining whether the current evaporator tube temperature is less than the second preset temperature threshold, the method further includes:

When the current evaporator tube temperature is less than the second preset temperature threshold, return to the step of determining the maintenance time based on the temperature difference.
The air conditioner control method according to claim 1, wherein the air conditioner further includes a compressor, and the compressor is installed outdoors;

After determining the temperature difference based on the current indoor ambient temperature and the user-set temperature, it also includes:

The compressor frequency of the compressor is adjusted according to the temperature difference, so that the current evaporator tube temperature of the evaporator changes with the change of the compressor frequency.
The air conditioner control method according to any one of claims 1 to 6, wherein determining the maintenance time according to the temperature difference includes:

Find the target temperature range corresponding to the temperature difference;

Obtain the time value corresponding to the target temperature range; and

The maintenance time is determined based on the time value.
An air conditioner control device, wherein the air conditioner control device includes:

The information acquisition module is used to determine the temperature difference based on the current indoor ambient temperature and the user-set temperature;

A time determination module, used to determine the maintenance time according to the temperature difference;

The fan adjustment module is used to adjust the fan speed of the indoor fan according to the first preset coefficient to obtain the adjusted fan speed when the current evaporator tube temperature of the evaporator is less than the first preset temperature threshold; and

An air conditioning control module is used to control the operation of the air conditioner according to the adjusted fan speed and the maintenance time.
An air conditioner, wherein the air conditioner includes an evaporator and an indoor fan, the evaporator is installed outdoors, and the indoor fan is installed indoors. The air conditioner further includes: a memory, a processor, and a device stored in the An air conditioner control program is stored in the memory and can be run on the processor. When the air conditioner control program is executed by the processor, the air conditioner control method according to any one of claims 1 to 7 is implemented.
A storage medium, wherein an air conditioner control program is stored on the storage medium, and when the air conditioner control program is executed by a processor, the air conditioner control method according to any one of claims 1 to 7 is implemented.