Air conditioning system control method and device, storage medium and electronic equipment

Abstract

The invention discloses an air conditioner system control method and device, a storage medium and electronic equipment, and relates to the technical field of air conditioners, an air conditioner system comprises at least one first indoor unit and at least one second indoor unit, the temperature adjusting priority of the first indoor unit is higher than that of the second indoor unit, and the temperature adjusting priority of the second indoor unit is higher than that of the first indoor unit. The method comprises the steps that when the outdoor environment temperature is larger than the preset environment temperature and the starting load rate is larger than the preset load rate, it is judged that the output capacity of the air conditioning system cannot meet the demand load; and the opening degree of an electronic expansion valve of the first indoor unit is increased, and the opening degree of an electronic expansion valve of the second indoor unit is decreased, so that the flow of a refrigerant flowing through the first indoor unit is increased, and the heat exchange amount of the first indoor unit is increased. The temperature regulation and control effect of the air conditioning system can be effectively improved, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, specifically to an air conditioning system control method, device, storage medium, and electronic equipment. Background Technology

[0002] An air conditioning system, taking air conditioners as an example, typically includes multiple indoor units. Under certain operating conditions, such air conditioning systems suffer from reduced output capacity. For instance, when the outdoor ambient temperature reaches 45°C or higher, the cooling capacity of the air conditioner may decrease by more than 50% when it is running in cooling mode. Summary of the Invention

[0003] This application provides an air conditioning system control scheme that can effectively improve the temperature regulation effect of the air conditioning system and enhance the user experience.

[0004] The embodiments of this application provide the following technical solutions: According to one embodiment of this application, an air conditioning system control method is provided. The air conditioning system includes at least one first indoor unit and at least one second indoor unit, wherein the temperature control priority of the first indoor unit is higher than that of the second indoor unit. The method includes: when the outdoor ambient temperature is higher than a preset ambient temperature and the operating load rate is higher than a preset load rate, determining that the output capacity of the air conditioning system cannot meet the demand load; increasing the opening of the electronic expansion valve of the first indoor unit and decreasing the opening of the electronic expansion valve of the second indoor unit to increase the refrigerant flow through the first indoor unit and improve the heat exchange of the first indoor unit.

[0005] In some embodiments of this application, the step of increasing the opening of the electronic expansion valve of the first indoor unit and decreasing the opening of the electronic expansion valve of the second indoor unit includes: determining the target superheat of the first indoor unit and the second indoor unit based on the corresponding indoor ambient temperature and set temperature of the first indoor unit and the second indoor unit; and increasing the opening of the electronic expansion valve of the first indoor unit and decreasing the opening of the electronic expansion valve of the second indoor unit based on the target superheat of the first indoor unit and the second indoor unit.

[0006] In some embodiments of this application, determining the target overheat of the first indoor unit and the second indoor unit based on the indoor ambient temperature and the set temperature corresponding to the first indoor unit and the second indoor unit includes: when the indoor ambient temperature corresponding to the first indoor unit is greater than a first adjusted temperature, determining the target overheat of the first indoor unit as a first overheat, where the first adjusted temperature is equal to the sum of the set temperature and the first temperature; when the indoor ambient temperature corresponding to the first indoor unit is greater than a second adjusted temperature and less than or equal to the first adjusted temperature, determining the target overheat of the first indoor unit as a second overheat, where the second adjusted temperature is equal to the sum of the set temperature and the second temperature; when the indoor ambient temperature corresponding to the first indoor unit is greater than a second adjusted temperature and less than or equal to the first adjusted temperature, determining the target overheat of the first indoor unit as a second overheat, where the second adjusted temperature is equal to the sum of the set temperature and the second temperature; when the indoor ambient temperature corresponding to the first indoor unit is greater than a second adjusted temperature and less than or equal to the first adjusted temperature, determining the target overheat of the first indoor unit as a second overheat, where the first indoor unit is greater than a second adjusted temperature and less than or equal to the first adjusted ... When the indoor ambient temperature is less than or equal to the second adjusted temperature and greater than the set temperature, the target superheat of the first indoor unit is determined to be the third superheat; when there is an indoor ambient temperature corresponding to the first indoor unit that is greater than the first adjusted temperature, the target superheat of the second indoor unit is determined to be the fourth superheat; when all indoor ambient temperatures corresponding to the first indoor unit are less than or equal to the second adjusted temperature and greater than the set temperature, the target superheat of the second indoor unit is determined to be the fifth superheat; when there is an indoor ambient temperature corresponding to the first indoor unit that is greater than the second adjusted temperature and less than or equal to the first adjusted temperature, the target superheat of the second indoor unit is determined to be the previous target superheat of the second indoor unit.

[0007] In some embodiments of this application, determining the target overheat of the first indoor unit and the second indoor unit based on the indoor ambient temperature and the set temperature corresponding to the first indoor unit and the second indoor unit includes: when the indoor ambient temperature corresponding to the first indoor unit is lower than the set temperature, the first indoor unit stops when it reaches the set temperature; when the first indoor unit stops when it reaches the set temperature, the target overheat of the second indoor unit is determined to be a preset standard overheat.

[0008] In some embodiments of this application, the step of increasing the opening of the electronic expansion valve of the first indoor unit and decreasing the opening of the electronic expansion valve of the second indoor unit according to the target superheat of the first indoor unit and the second indoor unit includes: when the actual superheat of the first indoor unit is greater than the sum of the target superheat and the preset first adjusted superheat, increasing the opening of the electronic expansion valve of the first indoor unit by a preset first degree every preset period; and when the actual superheat of the second indoor unit is less than the sum of the target superheat and the preset second adjusted superheat, decreasing the opening of the electronic expansion valve of the second indoor unit by a preset second degree every preset period.

[0009] In some embodiments of this application, before determining that the output capacity of the air conditioning system cannot meet the demand load when the outdoor ambient temperature is greater than the preset ambient temperature and the operating load rate is greater than the preset load rate, the method further includes: receiving an indoor unit classification instruction; and setting the first indoor unit and the second indoor unit among the multiple indoor units included in the air conditioning system according to the indoor unit classification instruction.

[0010] According to one embodiment of this application, an air conditioning system control device is provided. The air conditioning system includes at least one first indoor unit and at least one second indoor unit, wherein the temperature adjustment priority of the first indoor unit is higher than that of the second indoor unit. The device includes: a judgment module, configured to: determine that the output capacity of the air conditioning system cannot meet the demand load when the outdoor ambient temperature is greater than a preset ambient temperature and the operating load rate is greater than a preset load rate; and a control module, configured to: increase the opening of the electronic expansion valve of the first indoor unit and decrease the opening of the electronic expansion valve of the second indoor unit to increase the refrigerant flow through the first indoor unit and improve the heat exchange of the first indoor unit.

[0011] In some embodiments of this application, when the opening of the electronic expansion valve of the first indoor unit is increased and the opening of the electronic expansion valve of the second indoor unit is decreased, the control module is configured to: determine the target superheat of the first indoor unit and the second indoor unit based on the indoor ambient temperature and the set temperature corresponding to the first indoor unit and the second indoor unit; and increase the opening of the electronic expansion valve of the first indoor unit and decrease the opening of the electronic expansion valve of the second indoor unit based on the target superheat of the first indoor unit and the second indoor unit.

[0012] According to another embodiment of this application, a storage medium stores a computer program thereon, which, when executed by a processor of an electronic device, causes the electronic device to perform the methods described in the embodiments of this application.

[0013] According to another embodiment of this application, an electronic device may include: a memory storing a computer program; and a processor reading the computer program stored in the memory to execute the methods described in the embodiments of this application.

[0014] According to another embodiment of this application, a computer program product or computer program includes computer instructions stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the electronic device to perform the methods provided in the various optional implementations described in the embodiments of this application.

[0015] In this embodiment of the application, the air conditioning system includes at least one first indoor unit and at least one second indoor unit. The temperature control priority of the first indoor unit is higher than that of the second indoor unit. When the outdoor ambient temperature is higher than the preset ambient temperature and the operating load rate is higher than the preset load rate, it is determined that the output capacity of the air conditioning system cannot meet the demand load. The opening of the electronic expansion valve of the first indoor unit is increased, and the opening of the electronic expansion valve of the second indoor unit is decreased, so as to increase the refrigerant flow through the first indoor unit and improve the heat exchange of the first indoor unit.

[0016] In this embodiment of the application, by combining two parameters, outdoor ambient temperature and operating load rate, when the outdoor ambient temperature is greater than a preset threshold temperature and the operating load rate is greater than a preset load rate, it can be determined in a timely and accurate manner that the output capacity of the air conditioning system cannot meet the demand load. Furthermore, by increasing the opening of the electronic expansion valve of the first indoor unit and decreasing the opening of the electronic expansion valve of the second indoor unit, the refrigerant flow through the first indoor unit can be increased (to avoid a decrease in the refrigerant flow allocated to each indoor unit), thereby prioritizing the increase in the heat exchange of the first indoor unit in the air conditioning system. This ensures that the first indoor unit maintains its temperature control effect first, thereby preventing a decrease in the overall temperature control effect of the air conditioning system and improving the user experience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A flowchart of an air conditioning system control method according to an embodiment of this application is shown.

[0019] Figure 2 A flowchart illustrating the opening adjustment according to an embodiment of this application is shown.

[0020] Figure 3 A block diagram of an air conditioning system control device according to an embodiment of this application is shown.

[0021] Figure 4 A block diagram of an electronic device according to an embodiment of this application is shown. Detailed Implementation

[0022] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments provided herein are merely illustrative of the present disclosure and are not intended to limit the present disclosure. Furthermore, the embodiments provided below are some embodiments for implementing the present disclosure, and not all embodiments for implementing the present disclosure. Unless otherwise specified, the technical solutions described in the embodiments of the present disclosure can be implemented in any combination. It should be noted that, in the embodiments of this disclosure, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a method or apparatus that includes a list of elements includes not only the elements expressly described, but also other elements not expressly listed, or elements inherent to implementing the method or apparatus. Without further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other related elements (e.g., steps in the method or units in the apparatus, such as portions of circuitry, processors, programs, or software, etc.) in the method or apparatus that includes that element. For example, the air conditioning system control method provided in this disclosure includes a series of steps, but the air conditioning system control method provided in this disclosure is not limited to the steps described. Similarly, the air conditioning system control device provided in this disclosure includes a series of units, but the device provided in this disclosure is not limited to the units explicitly described, but may also include units that need to be set up for obtaining relevant information or processing based on information. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. It is understood that in the specific implementation of this application, relevant data is involved. When the embodiments in this application are applied to specific products or technologies, user permission or consent is required, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards.

[0023] An air conditioning system, taking air conditioners as an example, typically includes multiple indoor units. Under certain operating conditions, such air conditioning systems suffer from reduced output capacity. For instance, when the outdoor ambient temperature reaches 45°C or higher, the cooling capacity of the air conditioner may decrease by more than 50% when it is running in cooling mode.

[0024] In existing technologies, refrigerant serves as the heat transfer medium. Air conditioning systems distribute refrigerant flow to each indoor unit to provide cooling or heating capacity. When the output capacity (such as cooling or heating capacity) of the air conditioning system decreases, the refrigerant flow distributed to each indoor unit will also decrease, resulting in a reduction in the cooling or heating capacity of each indoor unit, a deterioration in temperature control, and an impact on user experience.

[0025] To address these issues, this application provides an air conditioning system control scheme that can effectively improve the temperature regulation effect of the air conditioning system and enhance the user experience.

[0026] The following is a detailed description of relevant embodiments of the air conditioning system control scheme provided in this application.

[0027] Figure 1 A flowchart illustrating an embodiment of an air conditioning system control method according to this application is shown. The execution entity of this air conditioning system control method can be a control module with processing capabilities. The control module can be installed in electronic devices such as air conditioning systems (e.g., multi-split air conditioners), remote controls, wired controllers, mobile phones, computers, smartwatches, and other home appliances. The control module may include at least a memory and a processor.

[0028] In one embodiment of this application, the control module, which serves as the execution body of the air conditioning system control method, is specifically disposed in the air conditioner. The control module may include a processor and a memory, meaning the air conditioner includes the processor and the memory, and the memory stores a computer program. Thus, the processor in the air conditioner can read the computer program stored in the memory to execute the methods of the various embodiments of this application.

[0029] like Figure 1 As shown, the air conditioning system control method may include steps S110 to S130.

[0030] Step S110: When the outdoor ambient temperature is greater than the preset ambient temperature and the operating load rate is greater than the preset load rate, it is determined that the output capacity of the air conditioning system cannot meet the demand load.

[0031] In step S120, the opening of the electronic expansion valve of the first indoor unit is increased, and the opening of the electronic expansion valve of the second indoor unit is decreased, so as to increase the refrigerant flow through the first indoor unit and improve the heat exchange of the first indoor unit.

[0032] An air conditioning system may include at least one outdoor unit and multiple indoor units. Each indoor space may house at least one indoor unit. These multiple indoor units include those that are in an on / off state (i.e., active indoor units). The active indoor units further include at least one first indoor unit and at least one second indoor unit, wherein the temperature control priority of the first indoor unit is higher than that of the second indoor unit. For example, the multiple indoor units in the air conditioning system may be designated as indoor unit A, indoor unit B, indoor unit C, indoor unit D, and indoor unit E. The active indoor units may include indoor units A, B, C, and E, all of which are in an on / off state. Furthermore, indoor units A and B may be two first indoor units, and indoor units C and E may be two second indoor units.

[0033] An ambient temperature sensor is installed outdoors where the air conditioning system is located, allowing for real-time reception of the temperature detected by the sensor (i.e., the outdoor ambient temperature). Simultaneously, it can receive indoor unit status parameters detected by pre-installed sensors (such as temperature, pressure, and humidity sensors) within the indoor unit when it is turned on. These indoor unit status parameters reflect the relevant status of the indoor unit; for example, they may include evaporator inlet temperature, evaporator outlet temperature, and evaporator inlet and outlet pressures.

[0034] The operating load rate (operating load rate N, N=S1 / S2, or N=W1 / W2, where S1 is the number of indoor units in the air conditioning system that are in operation, S2 is the total number of indoor units in the air conditioning system, and W1 is the sum of the rated power of the indoor units in the air conditioning system that are in operation). The operating load rate represents the demand load.

[0035] Specifically, the actual output capacity of the outdoor unit of the air conditioner can be determined based on the status parameters of the indoor unit when it is turned on.

[0036] Furthermore, by combining the outdoor ambient temperature and the operating load rate, at a certain moment, when the outdoor ambient temperature is greater than the preset threshold temperature and the operating load rate is greater than the preset load rate, it can be determined in a timely and accurate manner that the output capacity of the air conditioning system cannot meet the demand load.

[0037] The output capacity of an air conditioning system refers to the heating or cooling capacity that the current air conditioning system can provide. The preset ambient temperature and preset load rate can be set according to actual conditions, and this application does not impose specific limitations on them. For example, in one example, the preset ambient temperature is 43℃ ​​and the preset load rate is 80%.

[0038] The temperature control priority of the first indoor unit is higher than that of the second indoor unit. When it is determined that the output capacity of the air conditioning system cannot meet the demand load, the opening of the electronic expansion valve of the first indoor unit is increased while the opening of the electronic expansion valve of the second indoor unit is decreased. This increases the refrigerant flow through the first indoor unit (preventing a decrease in the refrigerant flow allocated to all indoor units), thereby prioritizing the increase of the heat exchange capacity of the first indoor unit in the air conditioning system, that is, prioritizing the increase of the cooling or heating capacity of the first indoor unit. Therefore, when the output capacity of the air conditioning system cannot meet the demand load, the first indoor unit can ensure the temperature control effect first.

[0039] In summary, by combining the outdoor ambient temperature and the operating load rate in this embodiment, when the outdoor ambient temperature is greater than a preset threshold temperature and the operating load rate is greater than a preset load rate, it can be determined in a timely and accurate manner that the output capacity of the air conditioning system cannot meet the demand load. Furthermore, by increasing the opening of the electronic expansion valve of the first indoor unit and decreasing the opening of the electronic expansion valve of the second indoor unit, the refrigerant flow through the first indoor unit can be increased (avoiding a decrease in the refrigerant flow allocated to each indoor unit), thereby prioritizing the increase in the heat exchange of the first indoor unit in the air conditioning system. This ensures that the first indoor unit maintains its temperature control effect first, thereby preventing a decrease in the overall temperature control effect of the air conditioning system and improving the user experience.

[0040] The following description Figure 1 Further optional specific embodiments are provided for each step performed when controlling the air conditioning system in the example implementation.

[0041] In one embodiment, before determining that the output capacity of the air conditioning system cannot meet the demand load when the outdoor ambient temperature is greater than the preset ambient temperature and the operating load rate is greater than the preset load rate in the correction S110, the step may be: receiving an indoor unit classification instruction; and setting a first indoor unit and a second indoor unit among the multiple indoor units included in the air conditioning system according to the indoor unit classification instruction.

[0042] Users can select the first and second indoor units from multiple indoor units in the air conditioning system via a wired controller, remote control, or mobile phone. After selecting the first and second indoor units, an indoor unit classification command is triggered. Upon receiving this command, the control module can then assign the first and second indoor units to the system according to the classification command. For example, indoor units A and B are designated as the first indoor unit, while indoor units C, D, and E are designated as the second indoor units.

[0043] Furthermore, in some embodiments, the sum of the rated power of at least one first indoor unit in the air conditioning system is less than a predetermined rated power. This predetermined rated power is equal to the product of the total rated power of the multiple indoor units in the air conditioning system and a predetermined percentage x%, where 0 < x < 100. The value of x can be set according to actual conditions; for example, in a preferred example, x = 50. When multiple first indoor units are set, limiting the sum of the rated power of the multiple first indoor units to less than this predetermined rated power can further ensure the temperature control effect of the indoor space where the first indoor unit is located when the cooling capacity is insufficient. For example, if the total rated power of indoor units A, B, C, D, and E is 15KW and x = 50, then the sum of the rated power of indoor units A and B needs to be less than 15KW * 50%.

[0044] See Figure 2 In one embodiment, step S120, which involves increasing the opening of the electronic expansion valve of the first indoor unit and decreasing the opening of the electronic expansion valve of the second indoor unit, may include: step S210, determining the target overheat of the first and second indoor units based on the corresponding indoor ambient temperature and set temperature; and step S220, increasing the opening of the electronic expansion valve of the first indoor unit and decreasing the opening of the electronic expansion valve of the second indoor unit based on the target overheat of the first and second indoor units.

[0045] Based on the indoor ambient temperature and set temperature corresponding to the indoor unit being turned on, the target superheat of the first indoor unit and the second indoor unit is dynamically allocated first. Then, based on the dynamically allocated target superheat, the opening of the electronic expansion valve of the first indoor unit is increased and the opening of the electronic expansion valve of the second indoor unit is decreased. This allows for a more reasonable and reliable adjustment of the opening of the electronic expansion valve, thereby prioritizing the increase of the heat exchange capacity of the first indoor unit in the air conditioning system while further preventing malfunctions in the air conditioning system.

[0046] Furthermore, in one embodiment, step S210, determining the target overheat of the first and second indoor units based on the corresponding indoor ambient temperature and set temperature of the first and second indoor units, may include: When the indoor ambient temperature corresponding to the first indoor unit is greater than the first adjusted temperature, the target superheat of the first indoor unit is determined as the first superheat, and the first adjusted temperature is equal to the sum of the set temperature and the first temperature; when the indoor ambient temperature corresponding to the first indoor unit is greater than the second adjusted temperature and less than or equal to the first adjusted temperature, the target superheat of the first indoor unit is determined as the second superheat, and the second adjusted temperature is equal to the sum of the set temperature and the second temperature; when the indoor ambient temperature corresponding to the first indoor unit is less than or equal to the second adjusted temperature and greater than the set temperature, the target superheat of the first indoor unit is determined as the third superheat. When the indoor ambient temperature corresponding to the first indoor unit is greater than the first adjusted temperature, the target superheat of the second indoor unit is determined to be the fourth superheat. When the indoor ambient temperature corresponding to the first indoor unit is less than or equal to the second adjusted temperature and greater than the set temperature, the target superheat of the second indoor unit is determined to be the fifth superheat. When the indoor ambient temperature corresponding to the first indoor unit is greater than the second adjusted temperature and less than or equal to the first adjusted temperature, the target superheat of the second indoor unit is determined to be the previous target superheat of the second indoor unit.

[0047] Taking an example where "the indoor units include two first indoor units, A and B, and one first indoor unit, C," when the indoor ambient temperature corresponding to indoor unit A is greater than the first adjusted temperature, the target superheat of indoor unit A is determined to be the first superheat 'a'. At this time, the first adjusted temperature is equal to the sum of the set temperature of indoor unit A and the first temperature. Similarly, when the indoor ambient temperature corresponding to indoor unit B is greater than the first adjusted temperature, the target superheat of indoor unit B is determined to be the first superheat 'a'. At this time, the first adjusted temperature is equal to the sum of the set temperature of indoor unit B and the first temperature. The first temperature can be set according to actual conditions; for example, in one example, the first temperature is equal to 2℃.

[0048] When the indoor ambient temperature corresponding to indoor unit A is greater than the second adjusted temperature and the indoor ambient temperature corresponding to indoor unit A is less than or equal to the first adjusted temperature, the target superheat of indoor unit A is determined to be the second superheat b. In this case, the second adjusted temperature is equal to the sum of the set temperature and the second temperature corresponding to indoor unit A. Similarly, when the indoor ambient temperature corresponding to indoor unit B is greater than the second adjusted temperature and the indoor ambient temperature corresponding to indoor unit B is less than or equal to the first adjusted temperature, the target superheat of indoor unit B is determined to be the second superheat b. In this case, the second adjusted temperature is equal to the sum of the set temperature and the second temperature corresponding to indoor unit B. The second temperature can be set according to actual conditions; for example, in one example, the second temperature is equal to 1℃.

[0049] When the indoor ambient temperature corresponding to indoor unit A is less than or equal to the second adjustment temperature and the indoor ambient temperature corresponding to indoor unit A is greater than the set temperature of indoor unit A, the target superheat of indoor unit A is determined to be the third superheat c; when the indoor ambient temperature corresponding to indoor unit B is less than or equal to the second adjustment temperature and the indoor ambient temperature corresponding to indoor unit B is greater than the set temperature of indoor unit B, the target superheat of indoor unit B is determined to be the third superheat c.

[0050] When the ambient temperature corresponding to the first indoor unit is greater than the first adjusted temperature (i.e., the ambient temperature corresponding to indoor unit A or indoor unit B is greater than the corresponding first adjusted temperature), the target superheat of indoor unit C is determined to be the fourth superheat d. When the ambient temperature corresponding to the first indoor unit is less than or equal to the second adjusted temperature and greater than the set temperature (i.e., the ambient temperature corresponding to indoor unit A and indoor unit B is less than or equal to the second adjusted temperature and greater than the set temperature), the target superheat of indoor unit C is determined to be the fifth superheat e. When the ambient temperature corresponding to the first indoor unit is greater than the second adjusted temperature and less than or equal to the first adjusted temperature (i.e., the ambient temperature corresponding to indoor unit A or indoor unit B is greater than the second adjusted temperature and less than or equal to the first adjusted temperature), the target superheat of indoor unit C is determined to be the previous target superheat of indoor unit C, which is the target superheat set by indoor unit C before determining the current target superheat of indoor unit C.

[0051] In this embodiment, the target superheat of the first indoor unit and the second indoor unit can be accurately and dynamically allocated when the indoor ambient temperature and the set temperature are different. The target superheat allocated dynamically according to this embodiment can further reasonably and reliably adjust the opening of the electronic expansion valve, so as to prioritize the increase of the heat exchange of the first indoor unit in the air conditioning system while further avoiding the operation failure of the air conditioning system.

[0052] Furthermore, in one embodiment, step S210, determining the target overheat of the first indoor unit and the second indoor unit based on the indoor ambient temperature and the set temperature corresponding to the first indoor unit and the second indoor unit, may include: when the indoor ambient temperature corresponding to the first indoor unit is lower than the set temperature, the first indoor unit stops when it reaches the set temperature; when both the first indoor units stop when they reach the set temperature, the target overheat of the second indoor unit is determined to be a preset standard overheat.

[0053] When the ambient temperature corresponding to the first indoor unit is lower than the set temperature, it indicates that the first indoor unit has received sufficient refrigerant flow to meet the cooling or heating requirements. At this time, the first indoor unit will reach the set temperature and shut down, and the electronic expansion valve in the first indoor unit will close. Then, the target superheat of the second indoor unit can be restored to the preset standard superheat, and the opening of the electronic expansion valve in the second indoor unit will be adjusted according to this preset standard superheat, thereby ensuring sufficient refrigerant flow is supplied to the second indoor unit.

[0054] After the first indoor unit receives sufficient refrigerant flow, a sufficient amount of refrigerant flow can be supplied to the second indoor unit. This ensures that the first and second indoor units in the air conditioning system receive sufficient refrigerant flow according to their temperature control priorities to guarantee cooling or heating capacity. Therefore, when the output capacity of the air conditioning system cannot meet the demand load, both the first and second indoor units can maintain effective temperature control, further improving the overall temperature control performance of the air conditioning system and enhancing the user experience.

[0055] Furthermore, in one embodiment, step S220, based on the target superheat of the first indoor unit and the second indoor unit, increases the opening of the electronic expansion valve of the first indoor unit and decreases the opening of the electronic expansion valve of the second indoor unit, includes: when the actual superheat of the first indoor unit is greater than the sum of the target superheat and the preset first adjusted superheat, increasing the opening of the electronic expansion valve of the first indoor unit by a preset first degree every preset cycle; when the actual superheat of the second indoor unit is less than the sum of the target superheat and the preset second adjusted superheat, decreasing the opening of the electronic expansion valve of the second indoor unit by a preset second degree every preset cycle.

[0056] Taking "indoor unit A (the first indoor unit) and indoor unit C (the second indoor unit) in operation" as an example, when the actual superheat of indoor unit A is greater than the sum of the target superheat of indoor unit A and the preset first adjusted superheat, the opening of the electronic expansion valve of indoor unit A is increased by the preset first opening every preset cycle. Conversely, when the actual superheat of indoor unit C is less than the sum of the target superheat of indoor unit C and the preset second adjusted superheat, the opening of the electronic expansion valve of the second indoor unit is decreased by the preset second opening every preset cycle.

[0057] The preset first superheat adjustment, preset second superheat adjustment, preset cycle, preset first opening degree, and preset second opening degree can be set according to actual conditions, and this application does not impose specific limitations on them. For example, in one example, the preset first superheat adjustment and preset second superheat adjustment are 0.5℃, and the preset cycle is 40 seconds. Furthermore, the actual superheat is calculated as: indoor unit outlet pipe temperature T_out - indoor unit inlet pipe temperature T_in. The indoor unit outlet pipe temperature is the temperature at the outlet pipe of the indoor unit, and the indoor unit inlet pipe temperature is the temperature at the inlet pipe of the indoor unit. When the indoor unit electronic expansion valve is closed, its opening degree is not less than the preset minimum opening degree; when the indoor unit electronic expansion valve is opened wide, its opening degree is not greater than the preset maximum opening degree.

[0058] Optionally, in other embodiments, step S220, based on the target superheat of the first indoor unit and the second indoor unit, increasing the opening of the electronic expansion valve of the first indoor unit and decreasing the opening of the electronic expansion valve of the second indoor unit, may include: querying the first target opening and the second target opening corresponding to the target superheat of the first indoor unit and the second indoor unit from a preset parameter table; increasing the opening of the electronic expansion valve of the first indoor unit to the first target opening, and decreasing the opening of the electronic expansion valve of the second indoor unit to the second target opening.

[0059] To facilitate better implementation of the air conditioning system control method provided in this application, this application also provides an air conditioning system control device based on the above-described air conditioning system control method. The meanings of the terms used are the same as in the above-described air conditioning system control method, and specific implementation details can be found in the descriptions within the method embodiments. Figure 3 A block diagram of an air conditioning system control device according to an embodiment of this application is shown.

[0060] The air conditioning system includes at least one first indoor unit and at least one second indoor unit, both of which are in operation. The first indoor unit has a higher temperature control priority than the second indoor unit. For example... Figure 3 As shown, the air conditioning system control device 300 may include: a judgment module 310 which can be used to: determine that the output capacity of the air conditioning system cannot meet the demand load when the outdoor ambient temperature is greater than the preset ambient temperature and the operating load rate is greater than the preset load rate; and a control module 320 which can be used to: increase the opening of the electronic expansion valve of the first indoor unit and decrease the opening of the electronic expansion valve of the second indoor unit to increase the refrigerant flow through the first indoor unit and improve the heat exchange of the first indoor unit.

[0061] In some embodiments of this application, when the opening of the electronic expansion valve of the first indoor unit is increased and the opening of the electronic expansion valve of the second indoor unit is decreased, the control module can be used to: determine the target superheat of the first indoor unit and the second indoor unit based on the indoor ambient temperature and the set temperature corresponding to the first indoor unit and the second indoor unit; and increase the opening of the electronic expansion valve of the first indoor unit and decrease the opening of the electronic expansion valve of the second indoor unit based on the target superheat of the first indoor unit and the second indoor unit.

[0062] In some embodiments of this application, when determining the target superheat of the first indoor unit and the second indoor unit based on the indoor ambient temperature and set temperature corresponding to the first indoor unit and the second indoor unit, the control module can be used to: when the indoor ambient temperature corresponding to the first indoor unit is greater than the first adjusted temperature, determine the target superheat of the first indoor unit as the first superheat, and the first adjusted temperature is equal to the sum of the set temperature and the first temperature; when the indoor ambient temperature corresponding to the first indoor unit is greater than the second adjusted temperature and less than or equal to the first adjusted temperature, determine the target superheat of the first indoor unit as the second superheat, and the second adjusted temperature is equal to the sum of the set temperature and the second temperature; when the first indoor unit... When the corresponding indoor ambient temperature is less than or equal to the second adjusted temperature and greater than the set temperature, the target superheat of the first indoor unit is determined to be the third superheat; when there is an indoor ambient temperature corresponding to the first indoor unit that is greater than the first adjusted temperature, the target superheat of the second indoor unit is determined to be the fourth superheat; when all indoor ambient temperatures corresponding to the first indoor unit are less than or equal to the second adjusted temperature and greater than the set temperature, the target superheat of the second indoor unit is determined to be the fifth superheat; when there is an indoor ambient temperature corresponding to the first indoor unit that is greater than the second adjusted temperature and less than or equal to the first adjusted temperature, the target superheat of the second indoor unit is determined to be the previous target superheat of the second indoor unit.

[0063] In some embodiments of this application, when determining the target superheat of the first indoor unit and the second indoor unit based on the indoor ambient temperature and the set temperature corresponding to the first indoor unit and the second indoor unit, the control module can be used to: when the indoor ambient temperature corresponding to the first indoor unit is less than the set temperature, the first indoor unit stops when it reaches the set temperature; when the first indoor unit stops when it reaches the set temperature, the target superheat of the second indoor unit is determined to be a preset standard superheat.

[0064] In some embodiments of this application, when the opening of the electronic expansion valve of the first indoor unit is increased and the opening of the electronic expansion valve of the second indoor unit is decreased according to the target superheat of the first indoor unit and the second indoor unit, the control module can be used to: when the actual superheat of the first indoor unit is greater than the sum of the target superheat and the preset first adjusted superheat, increase the opening of the electronic expansion valve of the first indoor unit by a preset first degree every preset period; when the actual superheat of the second indoor unit is less than the sum of the target superheat and the preset second adjusted superheat, decrease the opening of the electronic expansion valve of the second indoor unit by a preset second degree every preset period.

[0065] In some embodiments of this application, before determining that the output capacity of the air conditioning system cannot meet the demand load when the outdoor ambient temperature is greater than the preset ambient temperature and the operating load rate is greater than the preset load rate, the device further includes a setting module that can be used to: receive an indoor unit classification instruction; and, according to the indoor unit classification instruction, set the first indoor unit and the second indoor unit among the multiple indoor units included in the air conditioning system.

[0066] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to the embodiments of this application, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0067] Furthermore, embodiments of this application also provide an electronic device, such as... Figure 4 As shown, Figure 4 A block diagram of an electronic device according to an embodiment of this application is shown, specifically: The electronic device may include components such as a processor 401 with one or more processing cores, a memory 402 with one or more computer-readable storage media, a power supply 403, and an input unit 404. Those skilled in the art will understand that... Figure 4 The electronic device structure shown does not constitute a limitation on the electronic device and may include more or fewer components than shown, or combine certain components, or have different component arrangements. Wherein: The processor 401 is the control center of the electronic device, connecting various parts of the computer device via various interfaces and lines. It executes software programs and / or modules stored in the memory 402, and calls data stored in the memory 402, to perform various functions and process data. Optionally, the processor 401 may include one or more processing cores; preferably, the processor 401 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user page, and applications, and the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 401.

[0068] The memory 402 can be used to store software programs and modules. The processor 401 executes various functional applications and data processing by running the software programs and modules stored in the memory 402. The memory 402 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, application programs required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created according to the use of the electronic device, etc. In addition, the memory 402 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 402 may also include a memory controller to provide the processor 401 with access to the memory 402.

[0069] The electronic device also includes a power supply 403 that supplies power to the various components. Preferably, the power supply 403 can be logically connected to the processor 401 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply 403 may also include one or more DC or AC power supplies, recharging systems, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0070] The electronic device may also include an input unit 404, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0071] Although not shown, the electronic device may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 401 in the electronic device can load the executable files corresponding to the processes of one or more computer programs into the memory 402 according to the following instructions, and the processor 401 runs the computer programs stored in the memory 402, thereby realizing the various functions in the foregoing embodiments of this application.

[0072] For example, processor 401 can execute the following: when the outdoor ambient temperature is greater than the preset ambient temperature and the operating load rate is greater than the preset load rate, it is determined that the output capacity of the air conditioning system cannot meet the demand load; the opening of the electronic expansion valve of the first indoor unit is increased, and the opening of the electronic expansion valve of the second indoor unit is decreased, so as to increase the refrigerant flow through the first indoor unit and improve the heat exchange of the first indoor unit.

[0073] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by a computer program, or by a computer program controlling related hardware. The computer program can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0074] Therefore, embodiments of this application also provide a storage medium storing a computer program that can be loaded by a processor to execute the steps in any of the methods provided in embodiments of this application.

[0075] The storage medium can be a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0076] Since the computer program stored in the storage medium can execute the steps of any of the methods provided in the embodiments of this application, the beneficial effects that the methods provided in the embodiments of this application can achieve can be realized. For details, please refer to the previous embodiments, which will not be repeated here.

[0077] According to another embodiment of this application, a computer program product or computer program includes computer instructions stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the electronic device to perform the methods provided in the various optional implementations described in the embodiments of this application.

[0078] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein.

[0079] It should be understood that this application is not limited to the embodiments described above and shown in the accompanying drawings, but various modifications and changes can be made without departing from its scope.

Claims

1. A method for controlling an air conditioning system, characterized in that, The air conditioning system includes at least one first indoor unit and at least one second indoor unit, wherein the temperature control priority of the first indoor unit is higher than that of the second indoor unit, and the method includes: When the outdoor ambient temperature is higher than the preset ambient temperature and the operating load rate is higher than the preset load rate, it is determined that the output capacity of the air conditioning system cannot meet the demand load. Increase the opening of the electronic expansion valve of the first indoor unit and decrease the opening of the electronic expansion valve of the second indoor unit to increase the refrigerant flow through the first indoor unit and improve the heat exchange of the first indoor unit.

2. The method according to claim 1, characterized in that, The step of increasing the opening of the electronic expansion valve of the first indoor unit and decreasing the opening of the electronic expansion valve of the second indoor unit includes: The target overheat of the first indoor unit and the second indoor unit is determined based on the indoor ambient temperature and the set temperature corresponding to the first indoor unit and the second indoor unit. Based on the target superheat of the first indoor unit and the second indoor unit, the opening degree of the electronic expansion valve of the first indoor unit is increased and the opening degree of the electronic expansion valve of the second indoor unit is decreased.

3. The method according to claim 2, characterized in that, The step of determining the target overheat of the first indoor unit and the second indoor unit based on the corresponding indoor ambient temperature and set temperature includes: When the indoor ambient temperature corresponding to the first indoor unit is greater than the first adjusted temperature, the target superheat of the first indoor unit is determined to be the first superheat, and the first adjusted temperature is equal to the sum of the set temperature and the first temperature; When the indoor ambient temperature corresponding to the first indoor unit is greater than the second adjusted temperature and less than or equal to the first adjusted temperature, the target superheat of the first indoor unit is determined to be the second superheat, and the second adjusted temperature is equal to the sum of the set temperature and the second temperature; When the indoor ambient temperature corresponding to the first indoor unit is less than or equal to the second adjusted temperature and greater than the set temperature, the target superheat of the first indoor unit is determined to be the third superheat. When the indoor ambient temperature corresponding to the first indoor unit is greater than the first adjusted temperature, the target superheat of the second indoor unit is determined to be the fourth superheat. When the indoor ambient temperature corresponding to the first indoor unit is less than or equal to the second adjusted temperature and greater than the set temperature, the target superheat of the second indoor unit is determined to be the fifth superheat. When the indoor ambient temperature corresponding to the first indoor unit is greater than the second adjusted temperature and less than or equal to the first adjusted temperature, the target overheat of the second indoor unit is determined to be the previous target overheat of the second indoor unit.

4. The method according to claim 2, characterized in that, The step of determining the target overheat of the first indoor unit and the second indoor unit based on the corresponding indoor ambient temperature and set temperature includes: When the indoor ambient temperature corresponding to the first indoor unit is lower than the set temperature, the first indoor unit will stop when the temperature is reached. When the first indoor unit reaches its operating temperature and shuts down, the target superheat of the second indoor unit is determined to be the preset standard superheat.

5. The method according to claim 2, characterized in that, The step of increasing the opening of the electronic expansion valve of the first indoor unit and decreasing the opening of the electronic expansion valve of the second indoor unit based on the target superheat of the first indoor unit and the second indoor unit includes: When the actual superheat of the first indoor unit is greater than the sum of the target superheat and the preset first adjusted superheat, the opening of the electronic expansion valve of the first indoor unit is increased by the preset first opening every preset cycle. When the actual superheat of the second indoor unit is less than the sum of the target superheat and the preset second adjusted superheat, the opening of the electronic expansion valve of the second indoor unit is reduced by the preset second opening every preset cycle.

6. The method according to any one of claims 1 to 5, characterized in that, Before determining that the output capacity of the air conditioning system cannot meet the demand load when the outdoor ambient temperature is higher than the preset ambient temperature and the operating load rate is higher than the preset load rate, the method further includes: Receive internal unit classification instructions; According to the indoor unit classification instructions, the first indoor unit and the second indoor unit are set among the multiple indoor units included in the air conditioning system.

7. An air conditioning system control device, characterized in that, The air conditioning system includes at least one first indoor unit and at least one second indoor unit, wherein the temperature control priority of the first indoor unit is higher than that of the second indoor unit, and the device includes: The judgment module is used to: determine that the output capacity of the air conditioning system cannot meet the demand load when the outdoor ambient temperature is greater than the preset ambient temperature and the start-up load rate is greater than the preset load rate. The control module is used to: increase the opening of the electronic expansion valve of the first indoor unit and decrease the opening of the electronic expansion valve of the second indoor unit, so as to increase the refrigerant flow through the first indoor unit and improve the heat exchange of the first indoor unit.

8. The apparatus according to claim 7, characterized in that, When the opening of the electronic expansion valve of the first indoor unit is increased and the opening of the electronic expansion valve of the second indoor unit is decreased, the control module is used to: The target overheat of the first indoor unit and the second indoor unit is determined based on the indoor ambient temperature and the set temperature corresponding to the first indoor unit and the second indoor unit. Based on the target superheat of the first indoor unit and the second indoor unit, the opening degree of the electronic expansion valve of the first indoor unit is increased and the opening degree of the electronic expansion valve of the second indoor unit is decreased.

9. A storage medium, characterized in that, It stores a computer program that, when executed by the processor of the electronic device, causes the electronic device to perform the method described in any one of claims 1 to 6.

10. An electronic device, characterized in that, include: Memory, which stores computer programs; A processor reads a computer program stored in memory to perform the method described in any one of claims 1 to 6.

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