Air conditioner control method and device and air conditioner

Abstract

The application relates to an air conditioner control method and device and an air conditioner, and relates to the technical field of household appliances. The method comprises the following steps: when a refrigeration mode of the air conditioner is started, the air conditioner is controlled to operate at initial operation parameters; during operation, if a current outdoor temperature of the air conditioner exceeds a preset high temperature, an initial adjustment opening of an electronic expansion valve is determined; after the air conditioner is controlled to operate at the initial adjustment opening for a first time, a current first exhaust temperature is detected; a first temperature difference between a current first outdoor coil temperature and a target outdoor coil temperature and a first exhaust temperature difference between the current first exhaust temperature and a first target exhaust temperature are obtained; when the first exhaust temperature difference is within a first exhaust temperature range and the first temperature difference is less than or equal to a first coil temperature threshold, the opening of the electronic expansion valve is increased, and the rotating speed of an outdoor fan is increased, so that the first operation parameters of the air conditioner are obtained. The method can improve the high-temperature refrigeration effect of the air conditioner.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to an air conditioning control method, device and air conditioner. Background Technology

[0002] With the development of science and technology and the continuous improvement of people's living standards, air conditioners have become an indispensable household appliance. As technology in the home appliance industry matures and competition intensifies, consumers are demanding higher and higher quality air conditioners.

[0003] Currently, when air conditioners operate under high-temperature conditions, the heat dissipation capacity of the outdoor unit decreases due to the high ambient temperature, which can lead to poor cooling performance or even shutdown. Therefore, there is an urgent need for an air conditioner control method that can solve the above problems. Summary of the Invention

[0004] Therefore, it is necessary to provide an air conditioning control method, device, and air conditioner that can improve the high-temperature cooling effect of air conditioners, in order to address the above-mentioned technical problems.

[0005] Firstly, this application provides an air conditioning control method. The method includes:

[0006] When the air conditioner is in cooling mode, control the air conditioner to operate with the initial operating parameters;

[0007] During operation with the initial operating parameters, if the current outdoor temperature of the air conditioner exceeds the preset high temperature, the initial adjustment opening of the electronic expansion valve is determined based on the current outdoor temperature.

[0008] After controlling the air conditioner to operate at the initial adjustment opening of the electronic expansion valve for a first time, the current first exhaust temperature is detected;

[0009] The first coil temperature difference between the current first outer coil temperature and the target outer coil temperature, and the first exhaust temperature difference between the current first exhaust temperature and the first target exhaust temperature are obtained;

[0010] When the first exhaust temperature difference is within the first exhaust temperature range and the first coil temperature difference is less than or equal to the first coil temperature threshold, the opening of the electronic expansion valve is increased and the outdoor fan speed is increased to obtain the first operating parameters of the air conditioner.

[0011] Secondly, this application provides an air conditioning control device, the device comprising:

[0012] The initial operation module is used to control the air conditioner to operate with initial operating parameters when the air conditioner is turned on in cooling mode;

[0013] The module for determining the initial adjustment opening is used to determine the initial adjustment opening of the electronic expansion valve based on the current outdoor temperature if the current outdoor temperature of the air conditioner exceeds the preset high temperature during operation with the initial operating parameters.

[0014] The exhaust temperature detection module is used to detect the current first exhaust temperature after the air conditioner has been running at the initial adjustment opening of the electronic expansion valve for a first time.

[0015] The temperature difference acquisition module is used to acquire the first coil temperature difference between the current first outer coil temperature and the target outer coil temperature, and the first exhaust temperature difference between the current first exhaust temperature and the first target exhaust temperature;

[0016] The air conditioning adjustment module is used to increase the opening of the electronic expansion valve and increase the outdoor fan speed when the first exhaust temperature difference is within the first exhaust temperature range and the first coil temperature difference is less than or equal to the first coil temperature threshold, thereby obtaining the first operating parameters of the air conditioner.

[0017] Thirdly, this application provides an air conditioner, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the air conditioner control method of the above embodiments.

[0018] Fourthly, this application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, which, when executed by a processor, implements the steps of the air conditioning control methods of the above embodiments.

[0019] Fifthly, this application also provides a computer program product. The computer program product includes a computer program that, when executed by a processor, implements the steps of the air conditioning control methods described in the above embodiments.

[0020] The aforementioned air conditioning control method, device, and air conditioner, when the air conditioner is in cooling mode, control the air conditioner to operate with initial operating parameters. During operation with these initial parameters, if the current outdoor temperature exceeds a preset high temperature, the initial adjustment opening of the electronic expansion valve is determined based on the current outdoor temperature, and the air conditioner is controlled to operate at the initial adjustment opening of the electronic expansion valve for a first time to ensure normal operation and prevent shutdown due to excessively high outdoor temperatures. Then, the current first exhaust temperature after the first time is detected, and the first coil temperature difference between the current first external coil temperature and the target external coil temperature, as well as the first exhaust temperature difference between the current first exhaust temperature and the first target exhaust temperature, are obtained. This takes into account the impact of different temperature parameters on the high-temperature cooling effect of the air conditioner. Furthermore, when the first exhaust temperature difference is within the first exhaust temperature range and the first coil temperature difference is less than or equal to the first coil temperature threshold, the opening of the electronic expansion valve is increased, and the outdoor fan speed is increased to obtain the first operating parameters of the air conditioner. Therefore, the above method, by precisely adjusting different operating parameters of the air conditioner, can effectively improve the cooling effect of the air conditioner at high temperatures. Attached Figure Description

[0021] Figure 1 This is a schematic diagram illustrating an application scenario of the air conditioning control method in another embodiment;

[0022] Figure 2 This is a flowchart illustrating an air conditioning control method in one embodiment.

[0023] Figure 3 This is the control flow for the first operating parameter in one embodiment.

[0024] Figure 4 This is a schematic diagram of the air outlet temperature detection process of an air conditioning control method in one embodiment.

[0025] Figure 5 This is the control flow for the second operating parameter in one embodiment.

[0026] Figure 6 This is a flowchart illustrating an air conditioning control method in another embodiment.

[0027] Figure 7 This is the control flow for the third operating parameter in one embodiment.

[0028] Figure 8 This is a flowchart illustrating the air conditioning control method in yet another embodiment.

[0029] Figure 9 This is a structural block diagram of an air conditioning control device in one embodiment.

[0030] Figure 10 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0032] With the development of science and technology and the continuous improvement of people's living standards, air conditioners have become an indispensable household appliance. As technology in the home appliance industry matures and competition intensifies, consumers are demanding higher and higher quality air conditioners.

[0033] Currently, when air conditioners operate under high-temperature conditions, the cooling effect deteriorates or even the air conditioner shuts down because the ambient temperature far exceeds the heat dissipation capacity of the outdoor unit. The common solution is to lower the ambient temperature around the outdoor unit to allow it to dissipate heat properly and maintain cooling performance. However, this method has several drawbacks: it's unsuitable for outdoor units located on high floors, it only provides short-term cooling, and it wastes manpower. These drawbacks all contribute to low cooling efficiency at high temperatures. Furthermore, the air conditioning system is a complex and interconnected system; simply physically cooling the outdoor unit is insufficient to maximize its effectiveness at high temperatures. To address this technical problem, this application employs adjustments to different operating parameters of the air conditioner based on varying temperature conditions, thereby improving its cooling performance at high temperatures.

[0034] Based on this, embodiments of this application provide an air conditioning control method that can be applied to, for example... Figure 1The application environment shown is illustrated. The air conditioner 100 includes a controller 102 and a temperature parameter acquisition unit 104, which are interconnected. Both the controller 102 and the temperature parameter acquisition unit 104 can be configured in the control mainboard of the air conditioner 100. The temperature parameter acquisition unit 104 is used to acquire the temperature parameters corresponding to various components of the air conditioner, and the controller 102 is used to control the operation of the air conditioner. Specifically, when the air conditioner is turned on in cooling mode, the controller 102 first controls the air conditioner to operate with initial operating parameters. During operation, the temperature parameter acquisition device 104 acquires the current outdoor temperature of the air conditioner in real time. If the current outdoor temperature exceeds the preset high temperature, the controller determines the initial adjustment opening of the electronic expansion valve based on the current outdoor temperature. The controller 102 then controls the air conditioner to operate with the initial adjustment opening of the electronic expansion valve for a first time. After the first time of operation, the temperature parameter acquisition device 104 detects the current first exhaust temperature of the air conditioner and acquires the first coil temperature difference between the current first external coil temperature and the target external coil temperature, as well as the first exhaust temperature difference between the current first exhaust temperature and the first target exhaust temperature. When the first exhaust temperature difference is detected to be within the first exhaust temperature range and the first coil temperature difference is less than or equal to the first coil temperature threshold, the controller 102 increases the opening of the electronic expansion valve and increases the outdoor fan speed to obtain the first operating parameters of the air conditioner and controls the air conditioner to operate with these first operating parameters.

[0035] In one embodiment, such as Figure 2 As shown, an air conditioning control method is provided, which is applied to... Figure 1 Taking controller 102 as an example, the following steps are included:

[0036] Step S202: When the air conditioner is in cooling mode, control the air conditioner to operate with initial operating parameters.

[0037] The initial operating parameters refer to the operating parameters when the air conditioner is turned on in cooling mode, which may include the initial opening degree of the electronic expansion valve, the initial speed of the outdoor fan, the initial speed of the indoor fan, and the initial frequency of the compressor.

[0038] Specifically, when the air conditioner is detected to be in cooling mode, the controller can first control the air conditioner to operate at the initial opening of the electronic expansion valve, the initial speed of the outdoor fan, the initial speed of the indoor fan, and the initial frequency of the compressor. During the operation of the air conditioner, the temperature parameter acquisition device can monitor the current outdoor temperature of the air conditioner in real time, so that the controller can adjust the operating parameters of the air conditioner in real time according to the current outdoor temperature, thereby ensuring the cooling effect of the air conditioner.

[0039] Step S204: During operation with the initial operating parameters, if the current outdoor temperature of the air conditioner exceeds the preset high temperature, the initial adjustment opening of the electronic expansion valve is determined based on the current outdoor temperature.

[0040] Wherein, the current outdoor temperature refers to the current ambient temperature where the outdoor unit of the air conditioner is located; the preset high temperature is a temperature threshold preset to indicate that the ambient temperature is too high, which can be set to 50 degrees Celsius or a higher temperature value, or can be set according to the actual scenario; the initial adjustment opening degree refers to the opening degree after the first adjustment of the electronic expansion valve, and the initial adjustment opening degree is used to ensure the normal operation of the air conditioner and prevent the phenomenon of shutdown.

[0041] Specifically, during the operation of the air conditioner with the initial opening degree of the electronic expansion valve, the initial rotational speed of the outdoor fan, the initial rotational speed of the indoor fan, and the initial frequency of the compressor, the temperature parameter collector monitors the current outdoor temperature in real time. If it is monitored that the current outdoor temperature exceeds the preset high temperature, it means that the ambient temperature where the outdoor unit of the air conditioner is located is too high at this time. In order to avoid the phenomenon of the air conditioner shutting down due to the ambient temperature of the air conditioner exceeding the heat dissipation capacity of the air conditioner condenser, it is necessary to first perform a stability operation on the air conditioner, that is, determine the initial adjustment opening degree of the electronic expansion valve of the air conditioner, and operate the air conditioner with this initial adjustment opening degree.

[0042] As an example, there is a corresponding relationship between the initial adjustment opening degree of the electronic expansion valve and the current outdoor temperature, and the relationship table of this corresponding relationship can be shown in Table 1:

[0043] Table 1

[0044] Outdoor ambient temperature T <![CDATA[T1≤T<T2]]> <![CDATA[T2≤T<T3]]> <![CDATA[T≥T3]]> Initial adjustment of opening P <![CDATA[P1]]> <![CDATA[P2]]> <![CDATA[P3]]>

[0045] Wherein, T1, T2, and T3 all refer to different preset ambient temperature limits. The value range of T1 is greater than or equal to the preset high temperature, T1 < T2 < T3, and P1 < P2 < P3. That is, the higher the outdoor ambient temperature, the higher the corresponding initial adjustment opening degree of the electronic expansion valve set, so as to ensure the normal operation of the air conditioner.

[0046] Step S206, after controlling the air conditioner to operate at the initial adjustment opening degree of the electronic expansion valve for the first time, detect the current first exhaust temperature.

[0047] Wherein, the first time refers to the duration of the air conditioner operating at the initial adjustment opening degree of the electronic expansion valve. This first time can be set to one minute or ten minutes. This first time can be set by the management personnel according to experience, or can be set according to the actual scenario. The specific setting method is not limited here. It should be noted that within this first time, except that the opening degree of the electronic expansion valve is the initial adjustment opening degree, other operating parameters are all operating with the initial operating parameters, that is, the rotational speed of the indoor fan, the rotational speed of the outdoor fan, and the compressor frequency are all operating with their respective corresponding initial operating parameters. The first exhaust temperature refers to the refrigeration temperature discharged by the compressor after the air conditioner operates for the first time. The exhaust temperature is one of the important operating parameters for evaluating the refrigeration effect of the air conditioner.

[0048] Specifically, after the controller controls the air conditioner to operate at the initial adjusted opening degree for the first time, the air conditioner is already in a stable state, that is, it can operate normally in a high-temperature environment. Then, the cooling effect of the air conditioner can be further improved by detecting the current first exhaust temperature of the air conditioner and adjusting the parameters according to the first exhaust temperature.

[0049] Step S208: Obtain the first coil temperature difference between the current first outer coil temperature and the target outer coil temperature, and the first exhaust temperature difference between the current first exhaust temperature and the first target exhaust temperature.

[0050] The first outdoor coil temperature refers to the temperature of the outdoor heat exchanger coil after the air conditioner has been running for a short period of time. It can be understood that the refrigerant in the air conditioning system is compressed into a high-temperature, high-pressure gas in the compressor, and then absorbs heat from the indoor air as it passes through the coil, thereby cooling the air and expelling the heat outdoors, achieving a cooling effect. Therefore, the outdoor coil temperature is also one of the important operating parameters for evaluating the cooling effect of an air conditioner. The target outdoor coil temperature refers to the pre-set standard temperature of the outdoor coil under normal cooling conditions; the first target exhaust temperature refers to the standard exhaust temperature value corresponding to the first period of air conditioner operation; the first coil temperature difference refers to the temperature difference between the current first outdoor coil temperature and the target outdoor coil temperature; the first exhaust temperature difference refers to the temperature difference between the current first exhaust temperature and the first target exhaust temperature.

[0051] As an example, there is a correspondence between the target exhaust temperature and the current outdoor temperature. It can be understood that the current outdoor temperature refers to the outdoor temperature immediately after the air conditioner starts running. The relationship between these two temperatures is shown in Table 2.

[0052] Table 2

[0053]

[0054]

[0055] Among them, T4, T5, T6, and T7 refer to different preset ambient temperature limits, and the value of T1 is greater than or equal to the preset high temperature. <T4<T5<T6<T7,T 排1 <T 排2 <T 排3 <T 排4 <T 排5 In other words, the higher the outdoor ambient temperature, the higher the corresponding target exhaust temperature.

[0056] Specifically, after the air conditioner starts operating, the temperature parameter acquisition device collects the current first exhaust temperature and the current outdoor temperature. Based on the current outdoor temperature, it determines the first target exhaust temperature and calculates the first exhaust temperature difference between the current first exhaust temperature and the first target exhaust temperature. It also detects the coil temperature of the outdoor heat exchanger, i.e., the current first outdoor coil temperature, and calculates the first coil temperature difference between the current first outdoor coil temperature and the preset target outdoor coil temperature. The first coil temperature difference characterizes the degree of temperature change in the outdoor heat exchanger coil, and the first exhaust temperature difference characterizes the degree of temperature change in the cooling output of the air conditioner compressor. Using both to adjust the air conditioner's operating parameters improves the accuracy of parameter adjustment, thereby enhancing the high-temperature cooling effect of the air conditioner.

[0057] Step S210: When the first exhaust temperature difference is within the first exhaust temperature range and the first coil temperature difference is less than or equal to the first coil temperature threshold, increase the opening of the electronic expansion valve and increase the outdoor fan speed to obtain the first operating parameters of the air conditioner.

[0058] The first exhaust temperature range refers to one of the temperature intervals corresponding to the pre-set exhaust temperature difference. In this embodiment, the first exhaust temperature range can be set to (4, 7). The first coil temperature threshold refers to the pre-set minimum coil temperature of the air conditioner. In this embodiment, the first coil temperature threshold can be set to zero. Both the first exhaust temperature range and the first coil temperature threshold can be set to other values ​​according to the actual application scenario. The first operating parameter refers to the current operating parameters of the air conditioner after increasing the opening of the electronic expansion valve and increasing the outdoor fan speed. This can include the increased electronic expansion valve opening, the increased outdoor fan speed, the indoor fan speed, and the compressor frequency. It should be noted that the indoor fan speed and compressor frequency can maintain their respective initial operating parameters at this time, or they can be adjusted according to the actual application situation.

[0059] Specifically, when the first exhaust temperature difference is within the first exhaust temperature range, it indicates that the first exhaust temperature difference is relatively high but within the air conditioner's tolerance range. In this case, the final operating parameters to be adjusted can be determined based on the first coil temperature difference. If the first coil temperature difference is less than or equal to the first coil temperature threshold, it indicates that the first external coil temperature is lower than the target external coil temperature. In this case, it is necessary to increase the outdoor fan speed to lower the first external coil temperature. At the same time, since the first exhaust temperature difference is relatively high but within the air conditioner's tolerance range, cooling is also required, i.e., by increasing the opening of the electronic expansion valve for a small amount of exhaust. By adjusting multiple operating parameters simultaneously, the air conditioner's cooling effect in high-temperature environments can be improved.

[0060] As an example, the outdoor fan speed can be increased according to preset fan speed parameters, such as increasing the outdoor fan speed by 30 rpm / min until it reaches its maximum value. The fan speed parameters can be determined based on the temperature difference of the first coil. If the temperature difference between the current temperature of the first outdoor coil and the target temperature of the outdoor coil is too large, the outdoor fan speed can be increased rapidly by increasing the fan speed parameters, thereby accelerating the air conditioning cooling process.

[0061] In this embodiment, when the air conditioner is in cooling mode, it is controlled to operate with initial operating parameters. During operation with these initial parameters, if the current outdoor temperature exceeds a preset high temperature, the initial adjustment opening of the electronic expansion valve is determined based on the current outdoor temperature. The air conditioner is then controlled to operate at this initial adjustment opening for a first time to ensure normal operation and prevent shutdown due to excessively high outdoor temperatures. The current first exhaust temperature after this first time is then detected, and the first coil temperature difference between the current first external coil temperature and the target external coil temperature, as well as the first exhaust temperature difference between the current first exhaust temperature and the first target exhaust temperature, are obtained. This takes into account the impact of different temperature parameters on the air conditioner's high-temperature cooling effect. Furthermore, when the first exhaust temperature difference is within the first exhaust temperature range and the first coil temperature difference is less than or equal to the first coil temperature threshold, the opening of the electronic expansion valve is increased, and the outdoor fan speed is increased to obtain the first operating parameters of the air conditioner. Therefore, this embodiment effectively improves the air conditioner's cooling effect at high temperatures by precisely adjusting different operating parameters.

[0062] In one embodiment, when the first exhaust temperature difference is within the first exhaust temperature range and the first coil temperature difference is greater than the second coil temperature threshold, the outdoor fan speed is increased and the compressor frequency is reduced to obtain the first operating parameters of the air conditioner.

[0063] The second coil temperature threshold is greater than the first coil temperature threshold. The second coil temperature threshold refers to the preset maximum coil temperature of the air conditioner. In this embodiment, the first coil temperature threshold can be set to 5, or it can be set to other values ​​according to the actual application.

[0064] Specifically, when the first exhaust temperature difference of the air conditioner is within the first exhaust temperature range, and the first coil temperature difference is greater than the second coil temperature threshold, it indicates that the current first outdoor coil temperature of the air conditioner is greater than the target coil temperature. Therefore, rapid cooling is required, which means increasing the outdoor fan speed and reducing the compressor frequency to obtain the air conditioner's first operating parameters. It's understandable that reducing the compressor frequency is more effective at achieving cooling than increasing the opening of the electronic expansion valve, thus quickly achieving refrigeration. Therefore, when certain temperature parameters are too high and rapid cooling is needed, reducing the compressor frequency can be chosen. If the temperature is high but within the air conditioner's tolerance range, slow cooling can be achieved by increasing the opening of the electronic expansion valve to perform a small-scale cooling, maximizing the air conditioner's cooling effect.

[0065] In one embodiment, when the first exhaust temperature difference is within the first exhaust temperature range, and the first coil temperature difference is greater than the first coil temperature threshold and less than or equal to the second coil temperature threshold, the compressor frequency is reduced to obtain the first operating parameters of the air conditioner.

[0066] Specifically, if the temperature difference of the first coil is greater than the temperature threshold of the first coil and less than or equal to the temperature threshold of the second coil, that is, when the temperature difference of the first coil is between the temperature thresholds of the first and second coils, it also indicates that the current temperature of the first external coil of the air conditioner is too high, but it has not reached the cooling level when the temperature difference of the first coil is greater than the temperature threshold of the second coil. Therefore, it is only necessary to reduce the compressor frequency.

[0067] In one embodiment, when the first exhaust temperature difference is less than the first exhaust temperature threshold, the compressor frequency is increased to obtain the first operating parameters of the air conditioner.

[0068] The first exhaust temperature threshold refers to the preset minimum exhaust temperature of the air conditioner. In this embodiment, the first exhaust temperature threshold can be set to -4, or it can be set to other values ​​according to the actual application.

[0069] Specifically, when the first exhaust temperature difference is less than the first exhaust temperature threshold, it means that the difference between the air conditioner's exhaust temperature and the target exhaust temperature is large. In this case, the cooling effect of the air conditioner can be improved by increasing the compressor frequency.

[0070] In one embodiment, when the first exhaust temperature difference is greater than the second exhaust temperature threshold, the compressor frequency is reduced to obtain the first operating parameters of the air conditioner.

[0071] The second exhaust temperature threshold is the upper limit of the first exhaust temperature range, which is also the preset maximum exhaust temperature of the air conditioner.

[0072] Specifically, when the temperature difference between the first exhaust gas and the second exhaust gas is greater than the temperature threshold of the second exhaust gas, it also indicates that the exhaust gas temperature of the air conditioner is significantly different from the target exhaust gas temperature and that the exhaust gas temperature is too high. In this case, the air conditioner can be cooled down quickly by reducing the compressor frequency, thereby improving the cooling effect of the air conditioner.

[0073] In one embodiment, when the first exhaust temperature difference is within the second exhaust temperature range, the opening of the electronic expansion valve is reduced to obtain the first operating parameter of the air conditioner.

[0074] The lower limit of the second exhaust temperature range is the first exhaust temperature threshold; the upper limit of the second exhaust temperature range can be set to zero.

[0075] Specifically, when the first exhaust temperature difference is within the range of the second exhaust temperature, it means that the exhaust temperature of the air conditioner is low but within the air conditioner's tolerance range. In this case, the opening of the electronic expansion valve is reduced to allow for a small amount of exhaust, thereby improving the cooling effect of the air conditioner.

[0076] In one embodiment, when the first exhaust temperature difference is within the third exhaust temperature range, the opening of the electronic expansion valve is increased to obtain the first operating parameter of the air conditioner.

[0077] The upper limit of the third exhaust temperature range is the lower limit of the first exhaust temperature range.

[0078] Specifically, similarly, when the first exhaust temperature difference is within the range of the second exhaust temperature, it means that the exhaust temperature of the air conditioner is relatively high, but still within the air conditioner's tolerance range. Therefore, by increasing the opening of the electronic expansion valve, the cooling effect of the air conditioner can be improved.

[0079] In one embodiment, when the first exhaust temperature equals the first target exhaust temperature, that is, when the first exhaust temperature difference is zero, it means that the exhaust temperature of the air conditioner is equal to the preset target exhaust temperature. Therefore, no adjustment is needed, and the current parameters can be maintained.

[0080] In one embodiment, such as Figure 3As shown, the control flow of the first operating parameter includes: setting the first exhaust temperature range to (4, 7], the second exhaust temperature range to [-4, 0), the third exhaust temperature range to (0, 4], the second coil temperature threshold to 5, and the first coil temperature threshold to 0. Specifically, when the first exhaust temperature difference is within the first exhaust temperature range (4, 7] and the first coil temperature difference is less than or equal to the first coil temperature threshold 0, the opening of the electronic expansion valve is increased, and the outdoor fan speed is increased by 30 rpm / min. When the first exhaust temperature difference is within the first exhaust temperature range (4, 7] and the first coil temperature difference is greater than the second coil temperature threshold 5, the outdoor fan speed is increased by 40 rpm / min, and the compressor frequency is reduced. When the first exhaust temperature difference is within the first exhaust temperature range (4, 7] and the first coil temperature difference is greater than the first coil temperature threshold 0 and less than or equal to the second coil temperature threshold 5, the compressor frequency is reduced.

[0081] When the first exhaust temperature difference is greater than the second exhaust temperature threshold 7, the compressor frequency is reduced. When the first exhaust temperature difference is within the third exhaust temperature range (0, 4), the opening of the electronic expansion valve is increased. When the first exhaust temperature difference is equal to 0, the current operation is maintained. When the first exhaust temperature difference is within the second exhaust temperature range [-4, 0), the opening of the electronic expansion valve is reduced. When the first exhaust temperature difference is less than the first exhaust temperature threshold -4, the compressor frequency is increased.

[0082] In one embodiment, such as Figure 4 As shown, the process of detecting the air conditioner's outlet temperature includes:

[0083] Step S402: After controlling the air conditioner to run for a second time with the first operating parameters, detect the current first air outlet temperature of the air conditioner.

[0084] The second time refers to the duration during which the air conditioner operates with the first operating parameters, and the second time is longer than the first time.

[0085] Specifically, after the controller controls the air conditioner to run for a second time with the first operating parameter, it needs to check whether the adjusted first operating parameter can achieve the cooling effect. The outlet air temperature is one of the temperature parameters that most directly reflects the cooling effect. The outlet air temperature refers to the temperature of the air outlet of the air conditioner.

[0086] Step S404: Obtain the first outlet air temperature difference between the current first outlet air temperature and the target outlet air temperature.

[0087] Here, "current first air outlet temperature" refers to the current air outlet temperature after the air conditioner has been running for a second time; "target air outlet temperature" refers to the preset standard value of the air conditioner's air outlet temperature. The target air outlet temperature can also be determined based on the current outdoor temperature. If the current outdoor temperature is too high, the target air outlet temperature can be set lower; if the current outdoor temperature is too low, the target air outlet temperature can be set higher. "First air outlet temperature difference" refers to the temperature difference between the current first air outlet temperature and the target air outlet temperature.

[0088] Specifically, the temperature parameter acquisition device collects the current air outlet temperature after the second time of air conditioner operation, and calculates the first air outlet temperature difference between the current first air outlet temperature and the target air outlet temperature corresponding to the current outdoor temperature. Based on this first air outlet temperature difference, it analyzes whether the adjustment of operating parameters has achieved the cooling effect, and then further adjusts the operating parameters.

[0089] Step S406: Adjust the operating parameters of the air conditioner according to the first air outlet temperature difference to obtain the second operating parameters.

[0090] The adjusted operating parameters of the air conditioner include the indoor fan speed. The second operating parameter refers to the adjusted indoor fan speed.

[0091] Specifically, the outlet air temperature is related to the indoor unit of the air conditioner. Therefore, to obtain a suitable outlet air temperature, the indoor fan speed can be adjusted directly. After running for a second time with the first operating parameters, the first outlet air temperature difference of the air conditioner is detected to assess whether the air conditioner is currently achieving a cooling effect. If not, the indoor fan speed is further adjusted to improve the cooling effect of the air conditioner. If the target outlet air temperature is achieved, that is, when the current first outlet air temperature is less than or equal to the target outlet air temperature, i.e., when the first outlet air temperature difference is less than or equal to zero, the indoor fan speed remains unchanged.

[0092] In this embodiment, by detecting the first outlet air temperature difference after the air conditioner has been running at the first operating parameters for a second time, the system analyzes whether the air conditioner has achieved a cooling effect, and then selects whether to further adjust the indoor fan speed of the air conditioner. This ensures that the cooling effect of the air conditioner can be improved.

[0093] In one embodiment, when the first outlet air temperature difference is within the first outlet air temperature range, the indoor fan speed is reduced based on the first indoor fan speed parameter to obtain the second operating parameter of the air conditioner.

[0094] The first air outlet temperature range refers to the preset temperature range of the air conditioner's air outlet temperature. In this embodiment, it can be set to (3, 6], or it can be set to other values ​​according to the actual application. The indoor fan speed parameter refers to the frequency at which the indoor fan speed decreases or increases. In this embodiment, the first indoor fan speed parameter can be set to 30 rpm / min.

[0095] Specifically, when the first outlet air temperature difference is within the first outlet air temperature range, it means that the first outlet air temperature of the air conditioner is too high and needs to be cooled. Then, based on the first indoor fan speed parameter, the indoor fan speed is reduced to obtain the reduced indoor fan speed until it is reduced to the preset first indoor fan speed threshold.

[0096] In one embodiment, when the first outlet air temperature difference is within the second outlet air temperature range, the indoor fan speed is reduced based on the second indoor fan speed parameter to obtain the second operating parameters of the air conditioner.

[0097] The second air outlet temperature range refers to another temperature range of the pre-set air conditioner air outlet temperature, and the upper limit of the second air outlet temperature range is the lower limit of the first air outlet temperature range. The second indoor fan speed parameter is lower than the first indoor fan speed parameter. In this embodiment, the second indoor fan speed parameter can be set to 20 rpm / min.

[0098] Specifically, when the temperature difference between the first air outlet and the second air outlet is within the range of the second air outlet, it means that the first air outlet temperature of the air conditioner is slightly high, but does not exceed the first air outlet temperature range, and can be appropriately cooled. Then, the indoor fan speed is reduced by using the second indoor fan speed parameter, which is lower than the first indoor fan speed parameter, to obtain the reduced indoor fan speed until it is reduced to the preset second indoor fan speed threshold.

[0099] In one embodiment, when the first outlet air temperature difference is within the third outlet air temperature range, the indoor fan speed is reduced based on the third indoor fan speed parameter to obtain the second operating parameter of the air conditioner.

[0100] The third air outlet temperature range refers to another temperature interval of the pre-set air conditioner air outlet temperature, and the lower limit of the third air outlet temperature range is the upper limit of the first air outlet temperature range. The speed parameter of the third indoor fan is greater than that of the first indoor fan. In this embodiment, the speed parameter of the second indoor fan can be set to 40 rpm / min.

[0101] Specifically, when the temperature difference of the first air outlet is within the range of the third air outlet, it means that the temperature of the first air outlet of the air conditioner is already very high and exceeds the range of the first air outlet. Rapid cooling is required. Therefore, the speed of the third indoor fan is reduced by using a speed parameter of the third indoor fan that is higher than the speed parameter of the first indoor fan, until the speed of the indoor fan is reduced to the preset threshold of the third indoor fan speed.

[0102] As an example, the second indoor fan speed threshold > the first indoor fan speed threshold > the third indoor fan speed threshold.

[0103] In one embodiment, such as Figure 5 As shown, the control flow of the second operating parameter includes: setting the first outlet air temperature range to (3, 6], the second outlet air temperature range to (0, 3], and the third outlet air temperature range to greater than 6; when the first outlet air temperature difference is within the first outlet air temperature range (3, 6], the outdoor fan speed is reduced by 30 rpm / min (revolutions per minute) for the first indoor fan; when the first outlet air temperature difference is within the third outlet air temperature range (greater than 6), the outdoor fan speed is reduced by 40 rpm / min (revolutions per minute) for the third indoor fan; when the first outlet air temperature difference is within the second outlet air temperature range (0, 3], the outdoor fan speed is reduced by 20 rpm / min (revolutions per minute) for the second indoor fan; and when the first outlet air temperature difference is less than or equal to 0, the current speed is maintained.

[0104] In one embodiment, such as Figure 6 As shown, the air conditioning control method further includes:

[0105] Step S602: After controlling the air conditioner to run for a third time with the second operating parameters, detect the current second exhaust temperature, the current second external coil temperature, and the current second air outlet temperature of the air conditioner.

[0106] In this process, after adjusting the second operating parameters based on the first air outlet temperature difference and controlling the air conditioner's operation for a third time using the second operating parameters, it is also necessary to monitor and adjust the various operating parameters of the air conditioner in real time to ensure that the air conditioner can always provide a suitable cooling effect.

[0107] The third time refers to the duration the air conditioner operates at the second operating parameters; the third time is longer than the second time. The current second exhaust temperature refers to the exhaust temperature after the air conditioner has been running for the third time. The current second outdoor coil temperature refers to the outdoor coil temperature after the air conditioner has been running for the third time. The current second outlet air temperature refers to the outlet air temperature after the air conditioner has been running for the third time.

[0108] Specifically, after the controller controls the air conditioner to run with the second operating parameters for a third time, it then detects the current second exhaust temperature, the current second external coil temperature, and the current second air outlet temperature of the air conditioner, so as to make real-time dynamic adjustments to the air conditioner based on the current second exhaust temperature, the current second external coil temperature, and the current second air outlet temperature.

[0109] Step S604: Obtain the second coil temperature difference between the current second outer coil temperature and the target outer coil temperature, the second exhaust temperature difference between the current second exhaust temperature and the target exhaust temperature, and the second outlet temperature difference between the current second outlet temperature and the target outlet temperature.

[0110] The second target exhaust temperature refers to the standard exhaust temperature value corresponding to the third time the air conditioner has been running. Because the target exhaust temperature is related to the current outdoor temperature, which changes dynamically, the target exhaust temperature also changes dynamically. The second coil temperature difference refers to the temperature difference between the current second outdoor coil temperature and the target outdoor coil temperature. The second exhaust temperature difference refers to the temperature difference between the current second exhaust temperature and the second target exhaust temperature. The second outlet air temperature difference refers to the temperature difference between the current second outlet air temperature and the target outlet air temperature.

[0111] Specifically, after the air conditioner has been running for three hours, the temperature parameter acquisition device detects the current outdoor temperature and determines the second target exhaust temperature based on the current outdoor temperature. It also detects the current second exhaust temperature of the air conditioner and calculates the temperature difference between the second exhaust temperature and the second target exhaust temperature. Similarly, it calculates the temperature difference between the current second outlet air temperature and the target outlet air temperature, as well as the temperature difference between the current second external coil temperature and the target external coil temperature.

[0112] Step S606: Based on the second coil temperature difference, the second exhaust temperature difference, and the second air outlet temperature difference, adjust the operating parameters of the air conditioner to obtain the third operating parameters.

[0113] The adjusted operating parameters of the air conditioner include at least one of the following: the opening degree of the electronic expansion valve, the compressor frequency, and the indoor fan speed. The third operating parameter includes at least one of the following: the adjusted electronic expansion valve opening degree, the adjusted compressor frequency, and the adjusted indoor fan speed.

[0114] Specifically, the degree of adjustment of the air conditioner is determined based on the temperature difference of the second coil, the temperature difference of the second exhaust, and the temperature difference of the second air outlet. Then, the operating parameters to be adjusted are determined based on the degree of adjustment, thus obtaining the third operating parameters.

[0115] In this embodiment, by monitoring all temperature parameters of the air conditioner after the third time of operation, the operating parameters of the air conditioner are dynamically adjusted to further ensure and improve the high-temperature cooling effect of the air conditioner.

[0116] In one embodiment, when the second exhaust temperature difference is within the fourth exhaust temperature range, the second coil temperature difference is less than or equal to the third coil temperature threshold, and the second outlet air temperature difference is lower than the third outlet air temperature threshold, the indoor fan speed is increased based on the first indoor fan speed parameter, and the compressor frequency is increased to obtain the third operating parameter of the air conditioner.

[0117] The fourth exhaust temperature range refers to another temperature interval corresponding to a pre-set exhaust temperature difference. The temperature values ​​in the fourth exhaust temperature range are all lower than the temperature values ​​in the first exhaust temperature range. In this embodiment, the fourth exhaust temperature range can be set to [-8, -5]. The third coil temperature threshold refers to a pre-set coil temperature value that is lower than the first coil temperature threshold. In this embodiment, the third coil temperature threshold can be set to -4. The third outlet air temperature threshold refers to a pre-set outlet air temperature value that is lower than the third outlet air temperature threshold. The third outlet air temperature threshold is also lower than the lower limit of the second outlet air temperature range. In this embodiment, the third outlet air temperature threshold can be set to -4. Both the third coil temperature threshold and the third outlet air temperature threshold can be set to other values ​​according to actual application conditions.

[0118] Specifically, when the second exhaust temperature difference is within the fourth exhaust temperature range, the second coil temperature difference is less than or equal to the third coil temperature threshold, and the second outlet air temperature difference is lower than the third outlet air temperature threshold, it is determined that the current air conditioner is in a medium adjustment state. Then, based on the first indoor fan speed parameter, the indoor fan speed is increased until the indoor fan speed is increased to the initial speed when the air conditioner is turned on in cooling mode, and the compressor frequency is increased to obtain the third operating parameter of the air conditioner.

[0119] In one embodiment, when the second exhaust temperature difference is less than the third exhaust temperature threshold, the second coil temperature difference is less than or equal to the third coil temperature threshold, and the second outlet air temperature difference is lower than the third outlet air temperature threshold, the indoor fan speed is increased based on the third indoor fan speed parameter, the compressor frequency is increased, and the opening of the electronic expansion valve is reduced to obtain the third operating parameter of the air conditioner.

[0120] The third exhaust temperature threshold is the lower limit of the fourth exhaust temperature range.

[0121] Specifically, when the second exhaust temperature difference is less than the third exhaust temperature threshold, the second coil temperature difference is less than or equal to the third coil temperature threshold, and the second outlet air temperature difference is lower than the third outlet air temperature threshold, it is determined that the air conditioner is currently in a severe adjustment state. Then, based on the third indoor fan speed parameter which is larger than the first indoor fan speed parameter, the indoor fan speed is rapidly increased until the indoor fan speed is raised to the initial speed when the air conditioner is turned on in cooling mode. The compressor frequency is also increased, and the opening of the electronic expansion valve is reduced to obtain the third operating parameter of the air conditioner.

[0122] In one embodiment, when the second exhaust temperature difference is within the fifth exhaust temperature range and the second outlet air temperature difference is less than or equal to the third outlet air temperature threshold, the indoor fan speed is increased based on the second indoor fan speed parameter, and the opening of the electronic expansion valve is reduced to obtain the third operating parameter of the air conditioner.

[0123] The lower limit of the fifth exhaust temperature range is the upper limit of the fourth exhaust temperature range, and the upper limit of the fifth exhaust temperature range falls within the second exhaust temperature range. In this embodiment, the fourth exhaust temperature range can be set to [-5, -2), or other values ​​can be set according to actual application conditions.

[0124] Specifically, when the second exhaust temperature difference is within the fifth exhaust temperature range, the second coil temperature difference is less than or equal to the third coil temperature threshold, and the second outlet air temperature difference is lower than the third outlet air temperature threshold, it is determined that the current air conditioner is in a slight adjustment state. Then, based on the second indoor fan speed parameter which is smaller than the first indoor fan speed parameter, the indoor fan speed is slowly increased until the indoor fan speed is raised to the initial speed when the air conditioner is turned on in cooling mode, and the opening of the electronic expansion valve is reduced to obtain the third operating parameter of the air conditioner.

[0125] In one embodiment, such as Figure 7 As shown, the control flow of the third operating parameter includes: setting the fourth exhaust temperature range to [-8, 5), the fifth exhaust temperature range to [-5, -2), the third outlet air temperature threshold to -4, and the third coil temperature threshold to -4. Specifically, when the second exhaust temperature difference is within the fourth exhaust temperature range [-8, 5), the second coil temperature difference is less than or equal to the third coil temperature threshold of -4, and the second outlet air temperature difference is lower than the third outlet air temperature threshold of -4, the indoor fan speed is increased based on the first indoor fan speed parameter of 30 rpm / min, and the compressor frequency is increased. When the second exhaust temperature difference is less than the third exhaust temperature threshold of -8, the second coil temperature difference is less than or equal to the third coil temperature threshold of -4, and the second outlet air temperature difference is lower than the third outlet air temperature threshold of -4, the indoor fan speed is increased based on the third indoor fan speed parameter of 40 rpm / min, the compressor frequency is increased, and the opening of the electronic expansion valve is reduced. When the second exhaust temperature difference is within the fifth exhaust temperature range [-5, -2), and the second outlet air temperature difference is less than or equal to the third outlet air temperature threshold of -4, the indoor fan speed is increased based on the second indoor fan speed parameter of 20 rpm / min, and the opening of the electronic expansion valve is reduced.

[0126] In one embodiment, the air conditioning control method further includes at least one of the following:

[0127] The first method: control the air conditioner to operate with the third operating parameter; during the operation with the third operating parameter, if the current outdoor temperature of the air conditioner is still detected to be higher than the preset high temperature, and the air conditioner has been operating with the third operating parameter for a fourth time, then return to the step: detect the current first exhaust temperature.

[0128] The fourth time refers to the pre-set duration for which the air conditioner operates with the third operating parameter.

[0129] Specifically, since air conditioning cooling is a continuous process, if the current outdoor temperature is still higher than the preset high temperature and the air conditioner has been running at the third operating parameter for a period of time, then the process returns to the step of detecting the current first exhaust temperature, and then adjusting the subsequent operating parameters based on the exhaust temperature to keep the air conditioner in a cooling state.

[0130] The second method is to control the air conditioner to operate with the third operating parameter; if the current outdoor temperature of the air conditioner is not detected to exceed the preset high temperature during the operation with the third operating parameter, then control the air conditioner to operate with the initial operating parameter.

[0131] Specifically, if the current outdoor temperature detected during air conditioner operation does not exceed the preset high temperature, it means that the outdoor ambient temperature of the air conditioner has decreased. In this case, the above-mentioned high-temperature cooling control process of the air conditioner can be stopped, and the air conditioner can be directly controlled to operate according to the initial operating parameters.

[0132] In one embodiment, such as Figure 8 As shown, the air conditioning control method may specifically include the following steps: When the air conditioner controller receives a user's signal to turn on the air conditioner, it activates the cooling mode and controls the air conditioner to operate with initial operating parameters. During operation with initial operating parameters, the temperature parameter acquisition device continuously monitors the current outdoor temperature. If the detected outdoor temperature exceeds a preset high temperature, the controller determines the initial adjustment opening of the electronic expansion valve based on the current outdoor temperature. After the controller controls the air conditioner to operate with this initial adjustment opening for a period of time, it detects the current first exhaust temperature and the current outdoor temperature, and obtains the first exhaust temperature difference between the current first exhaust temperature and the first target exhaust temperature. Based on this first exhaust temperature difference, it selects whether to obtain the first coil temperature difference between the current first outdoor coil temperature and the target outdoor coil temperature, and adjust the electronic expansion valve and compressor frequency based on the first coil temperature difference and the first exhaust temperature difference, or to directly adjust the electronic expansion valve, compressor frequency, and outdoor fan speed based on the first exhaust temperature difference. This results in... Figure 3 The first operating parameters of the air conditioner are determined, and the second time is run with the first operating parameters.

[0133] After the air conditioner has been running at the first operating parameters for a second period of time, the current first outlet air temperature is detected, and the first outlet air temperature difference between the current first outlet air temperature and the target outlet air temperature is calculated. Then, the speed of the indoor fan is adjusted based on the first outlet air temperature difference to obtain... Figure 5 The second operating parameter of the air conditioner is determined, and the third time is run with the second operating parameter.

[0134] After the air conditioner has been running for a third time with the second operating parameters, overall temperature parameters are detected, specifically the current second exhaust temperature, the current second outdoor coil temperature, and the current second outlet air temperature. The second coil temperature difference between the current and target outdoor coil temperatures, the second exhaust temperature difference between the current and target exhaust temperatures, and the second outlet air temperature difference between the current and target outlet air temperatures are obtained. Based on these second coil temperature differences, second exhaust temperature differences, and second outlet air temperature differences, at least one of the following operating parameters is adjusted: the opening of the electronic expansion valve, the compressor frequency, and the indoor fan speed. Figure 7 The third operating parameter of the air conditioner is set, and the fourth time is run with the third operating parameter.

[0135] After the air conditioner has been running at the third operating parameter for a fourth time, if the current outdoor temperature still exceeds the preset high temperature and the air conditioner has been running at the third operating parameter for a fourth time, then return to the step: detect the current first exhaust temperature. If the current outdoor temperature does not exceed the preset high temperature, then control the air conditioner to run at the initial operating parameter.

[0136] In this embodiment, when the air conditioner is in cooling mode, it is controlled to operate with initial operating parameters. During operation with these parameters, if the current outdoor temperature exceeds a preset high temperature, the initial adjustment opening of the electronic expansion valve is determined based on the current outdoor temperature. The air conditioner is then controlled to operate at this initial opening for a first time to ensure normal operation and prevent shutdown due to excessively high outdoor temperatures. The current first exhaust temperature after this first time is then detected, and the first coil temperature difference between the current first external coil temperature and the target external coil temperature, as well as the first exhaust temperature difference between the current first exhaust temperature and the first target exhaust temperature, are obtained. This takes into account the impact of different temperature parameters on the high-temperature cooling effect of the air conditioner. Furthermore, when the first exhaust temperature difference is within the first exhaust temperature range and the first coil temperature difference is less than or equal to the first coil temperature threshold, the opening of the electronic expansion valve is increased, and the outdoor fan speed is increased to obtain the first operating parameters of the air conditioner. Therefore, this embodiment effectively improves the cooling effect of the air conditioner at high temperatures by precisely adjusting the compressor frequency, indoor fan speed, outdoor fan speed, and electronic expansion valve.

[0137] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0138] Based on the same inventive concept, this application also provides an air conditioning control device for implementing the air conditioning control method described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more air conditioning control device embodiments provided below can be found in the limitations of the air conditioning control method described above, and will not be repeated here.

[0139] In one embodiment, such as Figure 9 As shown, an air conditioning control device is provided, comprising:

[0140] The initial operation module 902 is used to control the air conditioner to operate with initial operating parameters when the air conditioner is turned on in cooling mode;

[0141] The initial adjustment opening module 904 is used to determine the initial adjustment opening of the electronic expansion valve based on the current outdoor temperature if the current outdoor temperature of the air conditioner exceeds the preset high temperature during operation with the initial operating parameters.

[0142] The exhaust temperature detection module 906 is used to detect the current first exhaust temperature after the air conditioner has been running at the initial adjustment opening of the electronic expansion valve for a first time.

[0143] The temperature difference acquisition module 908 is used to acquire the first coil temperature difference between the current first outer coil temperature and the target outer coil temperature, and the first exhaust temperature difference between the current first exhaust temperature and the first target exhaust temperature.

[0144] The air conditioning adjustment module 910 is used to increase the opening of the electronic expansion valve and increase the outdoor fan speed when the first exhaust temperature difference is within the first exhaust temperature range and the first coil temperature difference is less than or equal to the first coil temperature threshold, thereby obtaining the first operating parameters of the air conditioner.

[0145] In one embodiment, the air conditioning control device is further configured to: increase the outdoor fan speed and reduce the compressor frequency when the first exhaust temperature difference is within a first exhaust temperature range and the first coil temperature difference is greater than a second coil temperature threshold, thereby obtaining the first operating parameters of the air conditioner; the second coil temperature threshold is greater than the first coil temperature threshold.

[0146] In one embodiment, the air conditioning control device is further configured to: reduce the compressor frequency when the first exhaust temperature difference is within a first exhaust temperature range, and the first coil temperature difference is greater than the first coil temperature threshold and less than or equal to the second coil temperature threshold, thereby obtaining the first operating parameters of the air conditioner.

[0147] In one embodiment, the air conditioning control device is further configured to:

[0148] The first method: When the first exhaust temperature difference is less than the first exhaust temperature threshold, the compressor frequency is increased to obtain the first operating parameters of the air conditioner;

[0149] The second method: When the first exhaust temperature difference is greater than the second exhaust temperature threshold, the compressor frequency is reduced to obtain the first operating parameters of the air conditioner; the second exhaust temperature threshold is the upper limit of the first exhaust temperature range.

[0150] The third method: When the first exhaust temperature difference is within the second exhaust temperature range, the opening of the electronic expansion valve is reduced to obtain the first operating parameter of the air conditioner; the lower limit of the second exhaust temperature range is the first exhaust temperature threshold.

[0151] The fourth method: When the first exhaust temperature difference is within the third exhaust temperature range, increase the opening of the electronic expansion valve to obtain the first operating parameter of the air conditioner; the upper limit of the third exhaust temperature range is the lower limit of the first exhaust temperature range.

[0152] In one embodiment, the air conditioning control device further includes an outlet air temperature detection module, which is used for:

[0153] After controlling the air conditioner to run at the first operating parameters for a second time, the current first air outlet temperature of the air conditioner is detected;

[0154] Obtain the first outlet air temperature difference between the current first outlet air temperature and the target outlet air temperature;

[0155] The operating parameters of the air conditioner are adjusted according to the first air outlet temperature difference to obtain the second operating parameters; the adjusted operating parameters of the air conditioner include the speed of the indoor fan.

[0156] In one embodiment, the outlet air temperature detection module is further configured to: when the first outlet air temperature difference is within the first outlet air temperature range, reduce the indoor fan speed based on the first indoor fan speed parameter to obtain the second operating parameter of the air conditioner.

[0157] In one embodiment, the outlet air temperature detection module is further used for:

[0158] When the first outlet air temperature difference is within the second outlet air temperature range, the indoor fan speed is reduced based on the second indoor fan speed parameter to obtain the second operating parameter of the air conditioner;

[0159] The upper limit of the second air outlet temperature range is the lower limit of the first air outlet temperature range, and the speed parameter of the second indoor fan is less than the speed parameter of the first indoor fan.

[0160] In one embodiment, the outlet air temperature detection module is further used for:

[0161] When the first outlet air temperature difference is within the third outlet air temperature range, the indoor fan speed is reduced based on the third indoor fan speed parameter to obtain the second operating parameter of the air conditioner;

[0162] The lower limit of the third air outlet temperature range is the upper limit of the first air outlet temperature range, and the speed parameter of the third indoor fan is greater than the speed parameter of the first indoor fan.

[0163] In one embodiment, the air conditioning control device is further configured to:

[0164] After controlling the air conditioner to run at the second operating parameters for a third time, the current second exhaust temperature, the current second external coil temperature, and the current second air outlet temperature of the air conditioner are detected.

[0165] The second coil temperature difference between the current second outer coil temperature and the target outer coil temperature, the second exhaust temperature difference between the current second exhaust temperature and the target exhaust temperature, and the second outlet temperature difference between the current second outlet temperature and the target outlet temperature are obtained.

[0166] Based on the second coil temperature difference, the second exhaust temperature difference, and the second outlet air temperature difference, the operating parameters of the air conditioner are adjusted to obtain a third operating parameter; the adjusted operating parameters of the air conditioner include at least one of the following: the opening degree of the electronic expansion valve, the compressor frequency, and the speed of the indoor fan.

[0167] In one embodiment, the air conditioning control device is further configured to:

[0168] When the second exhaust temperature difference is within the fourth exhaust temperature range, the second coil temperature difference is less than or equal to the third coil temperature threshold, and the second outlet air temperature difference is lower than the third outlet air temperature threshold, the indoor fan speed is increased based on the first indoor fan speed parameter, and the compressor frequency is increased to obtain the third operating parameter of the air conditioner.

[0169] The temperature values ​​of the fourth exhaust temperature range are all lower than the temperature values ​​of the first exhaust temperature range, and the third outlet air temperature threshold is lower than the lower limit of the first outlet air temperature range.

[0170] In one embodiment, the air conditioning control device is further configured to:

[0171] When the second exhaust temperature difference is less than the third exhaust temperature threshold, the second coil temperature difference is less than or equal to the third coil temperature threshold, and the second outlet air temperature difference is lower than the third outlet air temperature threshold, the indoor fan speed is increased based on the third indoor fan speed parameter, the compressor frequency is increased, and the opening of the electronic expansion valve is reduced to obtain the third operating parameter of the air conditioner.

[0172] The third exhaust temperature threshold is the lower limit of the fourth exhaust temperature range.

[0173] In one embodiment, the air conditioning control device is further configured to:

[0174] When the second exhaust temperature difference is within the fifth exhaust temperature range, and the second outlet air temperature difference is less than or equal to the third outlet air temperature threshold, the indoor fan speed is increased based on the second indoor fan speed parameter, and the opening of the electronic expansion valve is reduced to obtain the third operating parameter of the air conditioner.

[0175] The lower limit of the fifth exhaust temperature range is the upper limit of the fourth exhaust temperature range.

[0176] In one embodiment, the air conditioning control device is further configured to:

[0177] The first type:

[0178] Control the air conditioner to operate with the third operating parameter;

[0179] If, during operation with the third operating parameters, the current outdoor temperature of the air conditioner is still higher than the preset high temperature, and the air conditioner has been running with the third operating parameters for a fourth time, then return to the step: detect the current first exhaust temperature.

[0180] The second type:

[0181] Control the air conditioner to operate with the third operating parameter;

[0182] If, during operation with the third operating parameters, the current outdoor temperature of the air conditioner is not detected to exceed the preset high temperature, the air conditioner is controlled to operate with the initial operating parameters.

[0183] Each module in the aforementioned air conditioning control device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0184] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 10 As shown, the computer device includes a processor, memory, and a network interface connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database stores item recommendation data. The network interface communicates with external terminals via a network connection. When executed by the processor, the computer program implements an air conditioning control method.

[0185] Those skilled in the art will understand that Figure 10 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0186] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above-described method embodiments.

[0187] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon that, when executed by a processor, implements the steps in the above method embodiments.

[0188] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above method embodiments.

[0189] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0190] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0191] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0192] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. An air conditioning control method, characterized in that, The method includes: When the air conditioner is in cooling mode, control the air conditioner to operate with the initial operating parameters; During operation with the initial operating parameters, if the current outdoor temperature of the air conditioner exceeds the preset high temperature, the initial adjustment opening of the electronic expansion valve is determined based on the current outdoor temperature. After controlling the air conditioner to operate at the initial adjustment opening of the electronic expansion valve for a first time, the current first exhaust temperature is detected; The first coil temperature difference between the current first outer coil temperature and the target outer coil temperature, and the first exhaust temperature difference between the current first exhaust temperature and the first target exhaust temperature are obtained; When the first exhaust temperature difference is within the first exhaust temperature range and the first coil temperature difference is less than or equal to the first coil temperature threshold, the opening of the electronic expansion valve is increased and the outdoor fan speed is increased to obtain the first operating parameters of the air conditioner. After controlling the air conditioner to run at the first operating parameters for a second time, the current first air outlet temperature of the air conditioner is detected; Obtain the first outlet air temperature difference between the current first outlet air temperature and the target outlet air temperature; The operating parameters of the air conditioner are adjusted according to the first outlet air temperature difference to obtain the second operating parameters; the adjusted operating parameters of the air conditioner include the speed of the indoor fan; After controlling the air conditioner to run at the second operating parameters for a third time, the current second exhaust temperature, the current second external coil temperature, and the current second air outlet temperature of the air conditioner are detected. The second coil temperature difference between the current second outer coil temperature and the target outer coil temperature, the second exhaust temperature difference between the current second exhaust temperature and the target exhaust temperature, and the second outlet temperature difference between the current second outlet temperature and the target outlet temperature are obtained. Based on the second coil temperature difference, the second exhaust temperature difference, and the second outlet air temperature difference, the operating parameters of the air conditioner are adjusted to obtain a third operating parameter; the adjusted operating parameters of the air conditioner include at least one of the following: the opening degree of the electronic expansion valve, the compressor frequency, and the speed of the indoor fan.

2. The method according to claim 1, characterized in that, The method further includes: When the first exhaust temperature difference is within the first exhaust temperature range and the first coil temperature difference is greater than the second coil temperature threshold, the outdoor fan speed is increased and the compressor frequency is reduced to obtain the first operating parameters of the air conditioner; the second coil temperature threshold is greater than the first coil temperature threshold.

3. The method according to claim 1, characterized in that, The method further includes: When the first exhaust temperature difference is within the first exhaust temperature range, and the first coil temperature difference is greater than the first coil temperature threshold and less than or equal to the second coil temperature threshold, the compressor frequency is reduced to obtain the first operating parameters of the air conditioner.

4. The method according to claim 1, characterized in that, The method further includes at least one of the following: The first method: When the first exhaust temperature difference is less than the first exhaust temperature threshold, the compressor frequency is increased to obtain the first operating parameters of the air conditioner; The second method: When the first exhaust temperature difference is greater than the second exhaust temperature threshold, the compressor frequency is reduced to obtain the first operating parameters of the air conditioner; the second exhaust temperature threshold is the upper limit of the first exhaust temperature range. The third method: When the first exhaust temperature difference is within the second exhaust temperature range, the opening of the electronic expansion valve is reduced to obtain the first operating parameter of the air conditioner; the lower limit of the second exhaust temperature range is the first exhaust temperature threshold. The fourth method: When the first exhaust temperature difference is within the third exhaust temperature range, increase the opening of the electronic expansion valve to obtain the first operating parameter of the air conditioner; the upper limit of the third exhaust temperature range is the lower limit of the first exhaust temperature range.

5. The method according to claim 1, characterized in that, The step of adjusting the operating parameters of the air conditioner according to the first outlet air temperature difference to obtain the second operating parameter includes: When the first outlet air temperature difference is within the first outlet air temperature range, the indoor fan speed is reduced based on the first indoor fan speed parameter to obtain the second operating parameter of the air conditioner.

6. The method according to claim 1, characterized in that, The step of adjusting the operating parameters of the air conditioner according to the first outlet air temperature difference to obtain the second operating parameter further includes: When the first outlet air temperature difference is within the second outlet air temperature range, the indoor fan speed is reduced based on the second indoor fan speed parameter to obtain the second operating parameter of the air conditioner; The upper limit of the second air outlet temperature range is the lower limit of the first air outlet temperature range, and the speed parameter of the second indoor fan is less than the speed parameter of the first indoor fan.

7. The method according to claim 1, characterized in that, The step of adjusting the operating parameters of the air conditioner according to the first outlet air temperature difference to obtain the second operating parameter further includes: When the first outlet air temperature difference is within the third outlet air temperature range, the indoor fan speed is reduced based on the third indoor fan speed parameter to obtain the second operating parameter of the air conditioner; The lower limit of the third air outlet temperature range is the upper limit of the first air outlet temperature range, and the speed parameter of the third indoor fan is greater than the speed parameter of the first indoor fan.

8. The method according to claim 1, characterized in that, The step of adjusting the operating parameters of the air conditioner to obtain the third operating parameter based on the second coil temperature difference, the second exhaust temperature difference, and the second outlet air temperature difference includes: When the second exhaust temperature difference is within the fourth exhaust temperature range, the second coil temperature difference is less than or equal to the third coil temperature threshold, and the second outlet air temperature difference is lower than the third outlet air temperature threshold, the indoor fan speed is increased based on the first indoor fan speed parameter, and the compressor frequency is increased to obtain the third operating parameter of the air conditioner. The temperature values ​​of the fourth exhaust temperature range are all lower than the temperature values ​​of the first exhaust temperature range, and the third outlet air temperature threshold is lower than the lower limit of the first outlet air temperature range.

9. The method according to claim 1, characterized in that, The step of adjusting the operating parameters of the air conditioner to obtain the third operating parameter based on the second coil temperature difference, the second exhaust temperature difference, and the second outlet air temperature difference further includes: When the second exhaust temperature difference is less than the third exhaust temperature threshold, the second coil temperature difference is less than or equal to the third coil temperature threshold, and the second outlet air temperature difference is lower than the third outlet air temperature threshold, the indoor fan speed is increased based on the third indoor fan speed parameter, the compressor frequency is increased, and the opening of the electronic expansion valve is reduced to obtain the third operating parameter of the air conditioner. The third exhaust temperature threshold is the lower limit of the fourth exhaust temperature range.

10. The method according to claim 1, characterized in that, The step of adjusting the operating parameters of the air conditioner to obtain the third operating parameter based on the second coil temperature difference, the second exhaust temperature difference, and the second outlet air temperature difference further includes: When the second exhaust temperature difference is within the fifth exhaust temperature range, and the second outlet air temperature difference is less than or equal to the third outlet air temperature threshold, the indoor fan speed is increased based on the second indoor fan speed parameter, and the opening of the electronic expansion valve is reduced to obtain the third operating parameter of the air conditioner. The lower limit of the fifth exhaust temperature range is the upper limit of the fourth exhaust temperature range.

11. The method according to any one of claims 1-10, characterized in that, The method further includes at least one of the following: The first type: Control the air conditioner to operate with the third operating parameter; If, during operation with the third operating parameters, the current outdoor temperature of the air conditioner is still higher than the preset high temperature, and the air conditioner has been running with the third operating parameters for a fourth time, then return to the step: detect the current first exhaust temperature. The second type: Control the air conditioner to operate with the third operating parameter; If, during operation with the third operating parameters, the current outdoor temperature of the air conditioner is not detected to exceed the preset high temperature, the air conditioner is controlled to operate with the initial operating parameters.

12. An air conditioning control device, characterized in that, The device includes: The initial operation module is used to control the air conditioner to operate with initial operating parameters when the air conditioner is turned on in cooling mode; The module for determining the initial adjustment opening is used to determine the initial adjustment opening of the electronic expansion valve based on the current outdoor temperature if the current outdoor temperature of the air conditioner exceeds the preset high temperature during operation with the initial operating parameters. The exhaust temperature detection module is used to detect the current first exhaust temperature after the air conditioner has been running at the initial adjustment opening of the electronic expansion valve for a first time. The temperature difference acquisition module is used to acquire the first coil temperature difference between the current first outer coil temperature and the target outer coil temperature, and the first exhaust temperature difference between the current first exhaust temperature and the first target exhaust temperature; An air conditioning adjustment module is used to, when the first exhaust temperature difference is within a first exhaust temperature range and the first coil temperature difference is less than or equal to a first coil temperature threshold, increase the opening of the electronic expansion valve and increase the outdoor fan speed to obtain the first operating parameters of the air conditioner; after controlling the air conditioner to run at the first operating parameters for a second time, detect the current first outlet air temperature of the air conditioner; obtain the first outlet air temperature difference between the current first outlet air temperature and the target outlet air temperature; adjust the operating parameters of the air conditioner according to the first outlet air temperature difference to obtain second operating parameters; the adjusted operating parameters of the air conditioner include the indoor fan speed; and control the air conditioner to run at the second operating parameters. After the third period of operation, the current second exhaust temperature, the current second external coil temperature, and the current second outlet air temperature of the air conditioner are detected; the second coil temperature difference between the current second external coil temperature and the target external coil temperature, the second exhaust temperature difference between the current second exhaust temperature and the target exhaust temperature, and the second outlet air temperature difference between the current second outlet air temperature and the target outlet air temperature are obtained; based on the second coil temperature difference, the second exhaust temperature difference, and the second outlet air temperature difference, the operating parameters of the air conditioner are adjusted to obtain the third operating parameters; the adjusted operating parameters of the air conditioner include at least one of the following: the opening degree of the electronic expansion valve, the compressor frequency, and the indoor fan speed.

13. An air conditioner, comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 11.

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