Expansion valve opening degree updating method and device, air conditioning equipment, storage medium and product

Abstract

The application relates to an expansion valve opening degree updating method and device, air conditioning equipment, a storage medium and a computer program product. When the running time of the air conditioner in a refrigeration state reaches a target time, the ambient temperature and the set temperature are obtained. When the ambient temperature is less than or equal to the target temperature, and the difference between the ambient temperature and the set temperature is less than or equal to the target value, the rotating speed of the fan in the air conditioner is adjusted according to a first preset period until the ambient temperature is greater than the target temperature or the difference between the ambient temperature and the set temperature is greater than the target value. In the process of adjusting the rotating speed of the fan in the air conditioner, the opening degree of the expansion valve in the air conditioner is updated according to a second preset period until the opening degree of the expansion valve is less than a target minimum opening degree or the opening degree of the expansion valve is greater than a target maximum opening degree. The opening degree of the expansion valve can be accurately controlled, excessive dehumidification is avoided, and energy consumption is reduced.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to a method, apparatus, air conditioning equipment, storage medium, and computer program product for updating the opening degree of an expansion valve. Background Technology

[0002] The expansion valve is an important component in the refrigeration system. The expansion valve allows the medium-temperature, high-pressure liquid refrigerant to be throttled and transformed into low-temperature, low-pressure wet vapor. The liquid refrigerant absorbs heat in the evaporator to achieve a cooling effect. The expansion valve controls the valve flow rate by changing the superheat at the end of the evaporator.

[0003] During the cooling process of an air conditioner, if the expansion valve opening is too small, it will lead to insufficient liquid supply, resulting in insufficient liquid refrigerant evaporating in the evaporator and reducing cooling efficiency. If the expansion valve opening is too large, the amount of liquid supplied to the evaporator by the thermostatic expansion valve will be greater than the evaporator load, causing excessive liquid refrigerant evaporation, which will increase the power consumption of the compressor and thus increase the power consumption of the air conditioner.

[0004] In traditional methods, during the operation of a variable frequency air conditioner, the electronic expansion valve can automatically adjust its opening to control the flow rate of liquid refrigerant entering the evaporator when operating at high or low frequencies. However, for fixed frequency air conditioners that cannot adjust their operating frequency, it is impossible to accurately adjust the opening of the expansion valve. Summary of the Invention

[0005] Therefore, it is necessary to provide a method, apparatus, air conditioning equipment, computer-readable storage medium, and computer program product for updating the opening degree of an expansion valve that can accurately control the opening degree of the expansion valve, in order to address the above-mentioned technical problems.

[0006] Firstly, this application provides a method for updating the opening degree of an expansion valve, including:

[0007] When the air conditioner has been running in cooling mode for the target duration, obtain the ambient temperature and the set temperature.

[0008] When the ambient temperature is less than or equal to the target temperature and the difference between the ambient temperature and the set temperature is less than or equal to the target value, the speed of the air conditioner fan is adjusted according to the first preset cycle until the ambient temperature is greater than the target temperature or the difference between the ambient temperature and the set temperature is greater than the target value.

[0009] During the process of adjusting the fan speed in the air conditioner, the opening degree of the expansion valve in the air conditioner is updated according to the second preset cycle until the opening degree of the expansion valve is less than the target minimum opening degree or greater than the target maximum opening degree.

[0010] In one embodiment, the process of adjusting the speed of the fan in the air conditioner includes:

[0011] Identify the target fan and refrigeration fan;

[0012] Reduce the first speed of the target fan according to the first gear, and increase the second speed of the cooling fan according to the second gear, until the first speed reaches the first target value or the second speed reaches the second target value.

[0013] In one embodiment, the step of determining the target fan and the cooling fan includes:

[0014] Obtain the first location information of the target user and the second location information of each fan in the air conditioner;

[0015] Based on the first and second location information, the distance between each wind turbine and the target user is obtained;

[0016] The fan closest to the target user is identified as the target fan, and all other fans are identified as cooling fans.

[0017] In one embodiment, the process of updating the opening of the expansion valve in the air conditioner includes:

[0018] Obtain the current temperature of the evaporator tube in the air conditioner, the current opening degree of the expansion valve in the air conditioner, and the current speed of the fan in the air conditioner;

[0019] Based on the current temperature, current opening degree, and current speed, the desired opening degree of the expansion valve in the air conditioner is calculated.

[0020] Update the opening degree of the expansion valve according to the desired opening degree.

[0021] In one embodiment, the evaporator tube includes a first evaporator tube corresponding to the target fan and a second evaporator tube corresponding to the cooling fan; the expansion valve includes a first expansion valve corresponding to the target fan and a second expansion valve corresponding to the cooling fan; the step of calculating the desired opening degree of the expansion valve in the air conditioner based on the current temperature, the current opening degree, and the current speed includes:

[0022] Based on the current temperature of the first evaporator tube, the current opening degree of the first expansion valve, and the current speed of the target fan, the first desired opening degree of the first expansion valve is calculated.

[0023] Based on the current temperature of the second evaporator tube, the current opening degree of the second expansion valve, and the current speed of the refrigeration fan, the second desired opening degree of the second expansion valve is calculated.

[0024] In one embodiment, the step of updating the opening of the expansion valve according to the desired opening includes:

[0025] Update the opening degree of the first expansion valve according to the first desired opening degree;

[0026] Update the opening degree of the second expansion valve according to the second desired opening degree.

[0027] Secondly, this application also provides an expansion valve opening update device, comprising:

[0028] The temperature acquisition module is used to acquire the ambient temperature and the set temperature when the air conditioner has been running in cooling mode for a target duration.

[0029] The speed adjustment module is used to adjust the speed of the air conditioner fan according to a first preset cycle when the ambient temperature is less than or equal to the target temperature and the difference between the ambient temperature and the set temperature is less than or equal to the target value, until the ambient temperature is greater than the target temperature or the difference between the ambient temperature and the set temperature is greater than the target value.

[0030] The opening update module is used to update the opening of the expansion valve in the air conditioner according to a second preset cycle during the process of adjusting the fan speed in the air conditioner, until the opening of the expansion valve is less than the target minimum opening or greater than the target maximum opening.

[0031] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the method steps of any one of the first aspects.

[0032] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method steps of any one of the first aspects.

[0033] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the method steps of any one of the first aspects.

[0034] The aforementioned expansion valve opening update method, device, air conditioning equipment, storage medium, and computer program product, by acquiring the ambient temperature and set temperature when the air conditioner is in cooling mode for a target duration, and adjusting the speed of the air conditioner fan according to a first preset cycle when the ambient temperature is less than or equal to the target temperature and the difference between the ambient temperature and the set temperature is less than or equal to the target value, until the ambient temperature is greater than the target temperature or the difference between the ambient temperature and the set temperature is greater than the target value, and updating the opening of the expansion valve according to a second preset cycle during the adjustment of the air conditioner fan speed, until the opening of the expansion valve is less than the target minimum opening or greater than the target maximum opening, can accurately control the opening of the expansion valve, avoid over-dehumidification, and thus reduce energy consumption. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies 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.

[0036] Figure 1 This is a structural block diagram of an air conditioning system in one embodiment;

[0037] Figure 2 This is a structural block diagram of an indoor heat exchanger in one embodiment;

[0038] Figure 3 This is a flowchart illustrating the expansion valve opening update method in one embodiment;

[0039] Figure 4 This is a flowchart illustrating the steps of determining the target fan and the cooling fan in one embodiment;

[0040] Figure 5 This is a flowchart illustrating the expansion valve opening update method in one embodiment;

[0041] Figure 6 This is a structural block diagram of an expansion valve opening update device in one embodiment;

[0042] Figure 7 This is a structural block diagram of an air conditioning device in one embodiment;

[0043] Figure 8 This is an internal structural diagram of a computer device in one embodiment.

[0044] Explanation of reference numerals in the attached figures:

[0045] 100 - Outdoor air conditioning system, 200 - Indoor air conditioning system, 101 - Outdoor fan, 102 - Outdoor heat exchanger, 103 - Four-way valve, 104 - Compressor, 201 - First fan, 202 - Second fan, 203 - Indoor heat exchanger, 204 - First expansion valve, 205 - Second expansion valve, 231 - First evaporator body, 232 - Second evaporator body, 233 - First evaporator tube, 234 - Second evaporator tube, 235 - First temperature sensor, 236 - Second temperature sensor. Detailed Implementation

[0046] 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.

[0047] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various temperatures, but these temperatures are not limited by these terms. These terms are only used to distinguish one temperature from another.

[0048] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used herein to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as “below,” “under,” or “below” will be oriented “above” the other element or feature. Therefore, the exemplary terms “below” and “under” can include both above and below orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0049] In one exemplary embodiment, such as Figure 1 As shown, an air conditioning system is provided, including an outdoor air conditioning system 100 and an indoor air conditioning system 200. The outdoor air conditioning system 100 includes an outdoor fan 101, an outdoor heat exchanger 102, a four-way valve 103, and a compressor 104. The indoor air conditioning system 200 includes a first fan 201, a second fan 202, an indoor heat exchanger 203, a first expansion valve 204, and a second expansion valve 205.

[0050] In this system, when the air conditioning system is in cooling mode, the outdoor fan 101 generates strong air pressure to blow out hot air from the outdoor unit while simultaneously drawing in new cold air, thus achieving ventilation and air exchange within the outdoor unit; the outdoor heat exchanger 102 absorbs heat transferred from the indoor air conditioning system 200 through pipes and transfers heat to the outdoor atmosphere, achieving heat exchange; the four-way valve 103 opens the passage between the condenser and the indoor air conditioning system 200, enabling the refrigerant to circulate from a high-pressure liquid state to a low-pressure gaseous state, thereby producing a cooling effect; the compressor 104... The first fan 201 and the second fan 202 work together to distribute the cold air blown in by the outdoor air conditioning system 100 through the pipes to various areas of the room by rotating at high speed. The indoor heat exchanger 203 is used to absorb heat from the indoor air and transfer the heat to the refrigerant to achieve cooling. The first expansion valve 204 and the second expansion valve 205 work together to control the speed at which the refrigerant enters the indoor heat exchanger 203 by adjusting the flow rate of the refrigerant in order to maintain the cooling effect.

[0051] In this embodiment, by adjusting the speed of the first fan and the second fan, the cold air from the air conditioner can be prevented from blowing directly to the target user. At the same time, the opening of the first expansion valve and the second expansion valve can be corrected by the first fan and the second expansion valve, and the refrigerant flow rate entering the indoor heat exchanger can be adjusted by the first expansion valve and the second expansion valve, which can prevent excessive dehumidification and thus reduce energy consumption.

[0052] In one exemplary embodiment, such as Figure 2 As shown, the indoor heat exchanger 203 includes: a first evaporator body 231, a second evaporator body 232, a first evaporator tube 233, and a second evaporator tube 234.

[0053] The first evaporator tube 233 introduces refrigerant into the first evaporator body 231, which evaporates the refrigerant to absorb heat from the indoor air during the evaporation process. The cooled air is then delivered into the room by the airflow generated by the rotation of the first fan 201, thus lowering the indoor temperature. Similarly, the second evaporator tube 234 introduces refrigerant into the second evaporator body 232, which also evaporates the refrigerant to absorb heat from the indoor air during the evaporation process. The cooled air is then delivered into the room by the airflow generated by the rotation of the second fan 202, further lowering the indoor temperature. Furthermore, the refrigerant flow rate into the first evaporator tube 233 can be controlled by the first expansion valve 204, and the refrigerant flow rate into the second evaporator tube 234 can be controlled by the second expansion valve 205.

[0054] In this embodiment, refrigerant is introduced into the evaporator body through the evaporator tube, where it evaporates and absorbs heat from the indoor air. The flow rate of the rated refrigerant entering the evaporator tube is regulated by the expansion valve, which ensures the cooling effect of the air conditioning system while avoiding excessive dehumidification, thereby reducing energy consumption.

[0055] In one exemplary embodiment, such as Figure 3 As shown, a method for updating the opening degree of an expansion valve is provided, which can be applied to... Figure 1 The following steps are used as an example of the air conditioning system in the example, including steps 302 to 306.

[0056] in:

[0057] S302: When the air conditioner has been running in cooling mode for a target duration, obtain the ambient temperature and the set temperature.

[0058] When the air conditioner is in cooling mode, the compressor 104 operates, compressing the refrigerant into a high-pressure gas, increasing its temperature and pressure. The high-pressure refrigerant exchanges heat with the outdoor air through the outdoor heat exchanger 102. During this process, the refrigerant releases heat, thereby lowering its temperature and gradually transforming into a high-pressure liquid state. The high-pressure liquid refrigerant exchanges heat with the indoor air through the indoor heat exchanger 203. In the indoor heat exchanger 203, the refrigerant changes from a liquid state to a gaseous state, absorbing heat from the indoor air, thereby lowering the indoor air temperature. After flowing out of the indoor heat exchanger 203, the refrigerant enters the low-pressure region through the first expansion valve 204 and the second expansion valve 205, changing from a high-pressure liquid state to a low-pressure gaseous state, further lowering the temperature of the refrigerant. The low-pressure gaseous refrigerant is then drawn back into the compressor 104, starting a new cycle until the indoor temperature reaches the set temperature. Specifically, when the air conditioner has been running in cooling mode for a certain duration, the processor obtains the current ambient temperature and the set temperature of the air conditioner remote control. The target duration is usually 30 minutes. When the running time reaches the target duration, the ambient temperature should be close to the set temperature.

[0059] S304: When the ambient temperature is less than or equal to the target temperature and the difference between the ambient temperature and the set temperature is less than or equal to the target value, adjust the speed of the air conditioner fan according to the first preset cycle until the ambient temperature is greater than the target temperature or the difference between the ambient temperature and the set temperature is greater than the target value.

[0060] The target temperature is 25℃. Under normal circumstances, the difference between the target temperature and the outdoor ambient temperature is small, providing a more comfortable indoor environment. When the ambient temperature is less than or equal to the target temperature, and the difference between the ambient temperature and the set temperature is less than or equal to the target value, it indicates that the ambient temperature has been reduced to the target temperature and is close to the set temperature, meeting the user's needs. To prevent further temperature drops and energy waste, the speeds of the first fan 201 and the second fan 202 in the air conditioner are adjusted. This changes the degree of refrigerant evaporation in the indoor heat exchanger 203, thereby correcting the opening of the first expansion valve 204 and the second expansion valve 205. The adjustment continues until the ambient temperature exceeds the target temperature, or the difference between the ambient temperature and the set temperature exceeds the target value. At this point, the ambient temperature rises, and the indoor temperature needs to be lowered as quickly as possible. Therefore, the adjustment process of the speeds of the first fan 201 and the second fan 202 is stopped, and the air conditioner returns to normal cooling mode. The first preset cycle is typically 5 minutes. When the ambient temperature is less than or equal to the target temperature, and the difference between the ambient temperature and the set temperature is less than or equal to the target value, the fan speed is adjusted every 5 minutes.

[0061] S306: During the process of adjusting the fan speed in the air conditioner, the opening degree of the expansion valve in the air conditioner is updated according to the second preset cycle until the opening degree of the expansion valve is less than the target minimum opening degree or greater than the target maximum opening degree.

[0062] During the process of adjusting the speed of the first fan 201 and the second fan 202, such as Figure 2 As shown, by measuring the temperature inside the first evaporator tube 233 in real time and combining it with the rotation speed of the first fan 201, the required opening degree of the first expansion valve 204 can be calculated, and the opening degree of the first expansion valve 204 is updated. Similarly, by measuring the temperature inside the second evaporator tube 234 in real time and combining it with the rotation speed of the second fan 202, the required opening degree of the second expansion valve 205 can be calculated, and the opening degree of the second expansion valve 205 is updated, until the opening degree of either the first expansion valve 204 or the second expansion valve 205 is less than the target minimum opening degree, or the opening degree of either the first expansion valve 204 or the second expansion valve 205 is greater than the target maximum opening degree. The target minimum opening degree is typically the opening degree that allows the air conditioner to reach a minimum cooling power of 40P, and the target maximum opening degree is typically the opening degree that allows the air conditioner to reach a maximum cooling power of 480P. The second preset cycle is typically 1 minute, during which the opening degree of the expansion valve is updated every 1 minute while adjusting the fan speed in the air conditioner.

[0063] In the above-mentioned expansion valve opening update method, when the air conditioner is in cooling mode and the running time reaches the target duration, the ambient temperature and the set temperature are obtained. When the ambient temperature is less than or equal to the target temperature and the difference between the ambient temperature and the set temperature is less than or equal to the target value, the speed of the air conditioner fan is adjusted according to the first preset cycle until the ambient temperature is greater than the target temperature or the difference between the ambient temperature and the set temperature is greater than the target value. During the adjustment of the air conditioner fan speed, the opening of the air conditioner expansion valve is updated according to the second preset cycle until the opening of the expansion valve is less than the target minimum opening or greater than the target maximum opening. This method can accurately control the opening of the expansion valve, avoid excessive dehumidification, and thus reduce energy consumption.

[0064] In an exemplary embodiment, the process of adjusting the speed of the fan in an air conditioner includes: determining a target fan and a cooling fan; reducing the first speed of the target fan at a first gear and increasing the second speed of the cooling fan at a second gear, until the first speed reaches a first target value or the second speed reaches a second target value.

[0065] Among them, the target wind turbine is the one that is closer to the target user, i.e. Figure 2One of the first fan 201 and the second fan 202 reduces the speed of the target fan, resulting in a lower airflow velocity and shorter coverage distance for the cold air exiting the target fan, thus preventing the cold air from blowing directly onto the target user, until the target fan's speed is reduced to the lowest fan speed. The refrigeration fan is another fan in the air conditioner. By increasing its speed, it maintains the airflow of cold air, thereby maintaining the air conditioner's cooling capacity, until the refrigeration fan's speed reaches 100 rpm, or 100 rotational speeds per minute.

[0066] In this embodiment, by determining the target fan and the cooling fan, the first speed of the target fan is reduced according to the first gear, and the second speed of the cooling fan is increased according to the second gear until the first speed reaches the first target value or the second speed reaches the second target value. This can cause a change in the degree of refrigerant evaporation in the indoor heat exchanger, thereby correcting the opening of the first expansion valve and the second expansion valve, and thus accurately controlling the opening of the expansion valve.

[0067] In one exemplary embodiment, such as Figure 4 As shown, the steps for determining the target fan and the refrigeration fan include steps 402 to 406. Wherein:

[0068] S402: Obtain the first location information of the target user and the second location information of each fan in the air conditioner.

[0069] The first location information indicates the target user's location indoors, and the second location information indicates the location of each fan in the air conditioner indoors. Specifically, the second location information includes... Figure 2 The position information of the first fan 201 and the position information of the second fan 202 are shown. The first and second position information can be represented in coordinate form.

[0070] S404: Based on the first location information and the second location information, obtain the distance between each wind turbine and the target user.

[0071] Specifically, based on the first location information and the location information of the first fan 201, the first distance between the first fan 201 and the target user is calculated, and based on the first location information and the location information of the second fan 202, the second distance between the second fan 202 and the target fan is calculated.

[0072] S406: Identify the fan closest to the target user as the target fan, and identify all other fans as cooling fans.

[0073] In this process, by comparing the values ​​of the first distance and the second distance, the fan closer to the target user is determined. In practical applications, for air conditioners with different structures, there may be multiple fans. In the case of more than two fans, the fan closest to the target user is determined as the target fan, and all other fans are determined as cooling fans.

[0074] In this embodiment, by obtaining the first location information of the target user and the second location information of each fan in the air conditioner, the distance between each fan and the target user is obtained based on the first and second location information. The fan closest to the target user is identified as the target fan, and the fans other than the target fan are identified as cooling fans. By adjusting the speed of the target fan, the cold air from the air conditioner can be prevented from blowing directly to the target user. At the same time, the cooling fans can maintain the output of the air conditioner and maintain the cooling state of the air conditioner.

[0075] In an exemplary embodiment, the process of updating the opening degree of the expansion valve in the air conditioner includes: obtaining the current temperature of the evaporator tube in the air conditioner, the current opening degree of the expansion valve in the air conditioner, and the current speed of the fan in the air conditioner; calculating the desired opening degree of the expansion valve in the air conditioner based on the current temperature, the current opening degree, and the current speed; and updating the opening degree of the expansion valve according to the desired opening degree.

[0076] Among them, such as Figure 2 As shown, the indoor heat exchanger 203 is equipped with a first temperature sensor 235 and a second temperature sensor 236. The first temperature sensor 235 measures the current temperature of the first evaporator tube 233, and the second temperature sensor 236 measures the current temperature of the second evaporator tube 234. The current opening degree of the expansion valves in the air conditioner includes the current opening degree of the first expansion valve 204 and the current opening degree of the second expansion valve 205. The current fan speed includes the current speed of the first fan 201 and the current speed of the second fan 202. The current opening degree of the expansion valves and the current speed of the fans can be acquired by corresponding opening degree sensors and speed sensors. Specifically, based on the current temperature of the first evaporator tube 233, the current opening degree of the first expansion valve 204, and the current speed of the first fan 201, the desired opening degree of the first expansion valve 204 is calculated; based on the current temperature of the second evaporator tube 234, the current opening degree of the second expansion valve 205, and the current speed of the second fan 202, the desired opening degree of the second expansion valve 205 is calculated, and the opening degrees of the first expansion valve 204 and the second expansion valve 205 are updated.

[0077] In this embodiment, by obtaining the current temperature of the evaporator tube in the air conditioner, the current opening degree of the expansion valve in the air conditioner, and the current speed of the fan in the air conditioner; based on the current temperature, current opening degree, and current speed, the desired opening degree of the expansion valve in the air conditioner is calculated; according to the desired opening degree, the opening degree of the expansion valve is updated, which can accurately control the opening degree of the expansion valve, avoid excessive dehumidification, and thus reduce energy consumption.

[0078] In an exemplary embodiment, the evaporator tube includes a first evaporator tube corresponding to the target fan and a second evaporator tube corresponding to the cooling fan; the expansion valve includes a first expansion valve corresponding to the target fan and a second expansion valve corresponding to the cooling fan; the step of calculating the desired opening of the expansion valve in the air conditioner based on the current temperature, the current opening degree, and the current speed includes: calculating a first desired opening degree of the first expansion valve based on the current temperature of the first evaporator tube, the current opening degree of the first expansion valve, and the current speed of the target fan; and calculating a second desired opening degree of the second expansion valve based on the current temperature of the second evaporator tube, the current opening degree of the second expansion valve, and the current speed of the cooling fan.

[0079] The formula for calculating the first expected opening is as follows:

[0080]

[0081] Among them, such as Figure 2 As shown, P1 ′ express Figure 2 The first desired opening degree of the first expansion valve 204 is shown. P1 represents the current opening degree of the first expansion valve 204, T1 represents the current temperature of the first evaporator tube 233, n1 represents the current speed of the first fan 201, n0 represents the rated speed of the fan in the air conditioner, and A, B, and C are constant terms used to correct the calculation result of P′1 to eliminate interference caused by system errors.

[0082] The formula for calculating the second expected opening is:

[0083]

[0084] Where P′2 represents the second desired opening degree of the second expansion valve 205, P2 represents the current opening degree of the second expansion valve 205, T2 represents the current temperature of the second evaporator tube 234, n2 represents the current speed of the second fan 202, n0 represents the rated speed of the fan in the air conditioner, and A, B, and C are constant terms used to adjust P2. ′ The calculation results are corrected to eliminate interference from systematic errors.

[0085] Among them, A can be 14, B can be 2, and C can be 1.5. In practical applications, the values ​​of B and C can be selected according to the actual operating status of the air conditioning system.

[0086] In this embodiment, the first desired opening degree of the first expansion valve is calculated based on the current temperature of the first evaporator tube, the current opening degree of the first expansion valve, and the current speed of the target fan. The second desired opening degree of the second expansion valve is calculated based on the current temperature of the second evaporator tube, the current opening degree of the second expansion valve, and the current speed of the refrigeration fan. This allows for accurate control of the expansion valve opening, avoiding over-dehumidification and thus reducing energy consumption.

[0087] In an exemplary embodiment, the step of updating the opening of the expansion valve according to a desired opening degree includes: updating the opening of the first expansion valve according to a first desired opening degree; and updating the opening of the second expansion valve according to a second desired opening degree.

[0088] Among them, such as Figure 2 As shown, during the process of adjusting the speed of the air conditioner fan according to the first preset cycle, based on the second preset cycle, the opening of the first expansion valve 204 is updated according to the first desired opening, and the opening of the second expansion valve 205 is updated according to the second desired opening, until the opening of the first expansion valve 204 or the second expansion valve 205 is less than the target minimum opening, or the opening of the first expansion valve 204 or the second expansion valve 205 is greater than the target maximum opening.

[0089] In this embodiment, by updating the opening of the first expansion valve according to the first desired opening degree and updating the opening of the second expansion valve according to the second desired opening degree, the opening degree of the expansion valve can be accurately controlled, avoiding excessive dehumidification and thus reducing energy consumption.

[0090] In one exemplary embodiment, such as Figure 5 As shown, a method for updating the opening degree of an expansion valve is provided. Taking the application of this method to a fixed-frequency air conditioner as an example, the method includes the following steps 502 to 506. Wherein:

[0091] S502: When the air conditioner has been running in cooling mode for a target duration, obtain the ambient temperature and the set temperature.

[0092] S504: When the ambient temperature is less than or equal to the target temperature and the difference between the ambient temperature and the set temperature is less than or equal to the target value, the first location information of the target user and the second location information of each fan in the air conditioner are obtained according to the first preset cycle.

[0093] S506: Based on the first location information and the second location information, obtain the distance between each wind turbine and the target user.

[0094] S508: Identify the fan closest to the target user as the target fan, and identify all other fans as cooling fans.

[0095] S510: Reduce the first speed of the target fan according to the first gear, and increase the second speed of the cooling fan according to the second gear, until the first speed reaches the first target value or the second speed reaches the second target value.

[0096] S512: During the process of adjusting the speed of the air conditioner fan, according to the second preset cycle, the current temperature of the evaporator tube, the current opening degree of the expansion valve, and the current speed of the air conditioner fan are obtained.

[0097] S514: Based on the current temperature of the first evaporator tube, the current opening degree of the first expansion valve, and the current speed of the target fan, calculate the first desired opening degree of the first expansion valve; based on the current temperature of the second evaporator tube, the current opening degree of the second expansion valve, and the current speed of the refrigeration fan, calculate the second desired opening degree of the second expansion valve.

[0098] S516: Update the opening of the first expansion valve according to the first desired opening; update the opening of the second expansion valve according to the second desired opening; until the opening of the expansion valve is less than the target minimum opening or the opening of the expansion valve is greater than the target maximum opening.

[0099] In this embodiment, when the air conditioner is in cooling mode for a target duration, the ambient temperature and the set temperature are obtained. When the ambient temperature is less than or equal to the target temperature and the difference between the ambient temperature and the set temperature is less than or equal to the target value, the fan speed in the air conditioner is adjusted according to a first preset cycle until the ambient temperature is greater than the target temperature or the difference between the ambient temperature and the set temperature is greater than the target value. During the adjustment of the fan speed in the air conditioner, the opening of the expansion valve in the air conditioner is updated according to a second preset cycle until the opening of the expansion valve is less than the target minimum opening or greater than the target maximum opening. This can accurately control the opening of the expansion valve, avoid over-dehumidification, and thus reduce energy consumption.

[0100] 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.

[0101] Based on the same inventive concept, this application also provides an expansion valve opening update device for implementing the expansion valve opening update 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 expansion valve opening update device embodiments provided below can be found in the limitations of the expansion valve opening update method described above, and will not be repeated here.

[0102] In one exemplary embodiment, such as Figure 6 As shown, an expansion valve opening degree updating device is provided, including: a temperature acquisition module 10, a speed adjustment module 20, and an opening degree updating module 30, wherein:

[0103] The temperature acquisition module 10 is used to acquire the ambient temperature and the set temperature when the air conditioner has been running in cooling mode for a target duration.

[0104] The speed adjustment module 20 is used to adjust the speed of the air conditioner fan according to a first preset cycle when the ambient temperature is less than or equal to the target temperature and the difference between the ambient temperature and the set temperature is less than or equal to the target value, until the ambient temperature is greater than the target temperature or the difference between the ambient temperature and the set temperature is greater than the target value.

[0105] The opening update module 30 is used to update the opening of the expansion valve in the air conditioner according to the second preset cycle during the process of adjusting the speed of the fan in the air conditioner, until the opening of the expansion valve is less than the target minimum opening or greater than the target maximum opening.

[0106] In an exemplary embodiment, the speed adjustment module 20 is further configured to determine the target fan and the cooling fan; reduce the first speed of the target fan according to the first gear, and increase the second speed of the cooling fan according to the second gear, until the first speed reaches the first target value or the second speed reaches the second target value.

[0107] In an exemplary embodiment, the speed adjustment module 20 is further configured to acquire first location information of the target user and second location information of each fan in the air conditioner; acquire the distance between each fan and the target user based on the first location information and the second location information; determine the fan closest to the target user as the target fan; and determine the fans other than the target fan as cooling fans.

[0108] In an exemplary embodiment, the opening update module 30 is further configured to obtain the current temperature of the evaporator tube in the air conditioner, the current opening of the expansion valve in the air conditioner, and the current speed of the fan in the air conditioner; calculate the desired opening of the expansion valve in the air conditioner based on the current temperature, the current opening, and the current speed; and update the opening of the expansion valve according to the desired opening.

[0109] In an exemplary embodiment, the evaporator tube includes a first evaporator tube corresponding to the target fan and a second evaporator tube corresponding to the cooling fan; the expansion valve includes a first expansion valve corresponding to the target fan and a second expansion valve corresponding to the cooling fan; the opening update module 30 is further configured to calculate a first desired opening of the first expansion valve based on the current temperature of the first evaporator tube, the current opening of the first expansion valve, and the current speed of the target fan; and to calculate a second desired opening of the second expansion valve based on the current temperature of the second evaporator tube, the current opening of the second expansion valve, and the current speed of the cooling fan.

[0110] In an exemplary embodiment, the opening update module 30 is further configured to update the opening of the first expansion valve according to a first desired opening degree; and update the opening of the second expansion valve according to a second desired opening degree.

[0111] Each module in the aforementioned expansion valve opening update device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, 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.

[0112] In one exemplary embodiment, such as Figure 7 As shown, an air conditioning device is provided, including a fan 701, an expansion valve 702, a memory 703, and a processor 704. The processor 704 is used to acquire the ambient temperature and a set temperature when the air conditioner has been running in cooling mode for a target duration. If the ambient temperature is less than or equal to the target temperature, and the difference between the ambient temperature and the set temperature is less than or equal to the target value, the processor adjusts the speed of the fan 701 according to a first preset cycle until the ambient temperature is greater than the target temperature, or the difference between the ambient temperature and the set temperature is greater than the target value. During the adjustment of the fan speed, the processor updates the opening degree of the expansion valve 702 according to a second preset cycle until the opening degree of the expansion valve 702 is less than the target minimum opening degree, or the opening degree of the expansion valve 702 is greater than the target maximum opening degree. The memory 703 stores temperature data, speed data, and opening degree data. The temperature data includes the ambient temperature, set temperature, and target temperature; the speed data includes the speed of the fan 701; and the opening degree data includes the opening degree of the expansion valve 702.

[0113] In this embodiment, by adjusting the speed of the fan in the air conditioner, the cold air from the air conditioner can be prevented from blowing directly to the target user. At the same time, the fan can be used to correct the opening of the expansion valve in the air conditioner, and the refrigerant flow into the indoor heat exchanger can be regulated by the expansion valve, which can prevent excessive dehumidification and thus reduce energy consumption.

[0114] In one exemplary embodiment, a computer device is provided, the internal structure of which can be as shown in the figure. Figure 8 As shown, this computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operating system and computer programs stored in the non-volatile storage media. The database stores the opening data of the expansion valve. The I / O interfaces are used for exchanging information between the processor and external devices. The communication interface is used for communication with external terminals via a network connection. When executed by the processor, the computer program implements an expansion valve opening update method.

[0115] Those skilled in the art will understand that Figure 8 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.

[0116] In one exemplary embodiment, a computer device is provided, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to perform the following steps: when the air conditioner has been in cooling mode for a target duration, acquiring the ambient temperature and a set temperature; when the ambient temperature is less than or equal to the target temperature and the difference between the ambient temperature and the set temperature is less than or equal to the target value, adjusting the speed of the air conditioner fan according to a first preset cycle until the ambient temperature is greater than the target temperature or the difference between the ambient temperature and the set temperature is greater than the target value; during the adjustment of the air conditioner fan speed, updating the opening of the air conditioner expansion valve according to a second preset cycle until the opening of the expansion valve is less than the target minimum opening or the opening of the expansion valve is greater than the target maximum opening.

[0117] In one embodiment, the process of adjusting the speed of a fan in an air conditioner when the processor executes a computer program includes: determining a target fan and a cooling fan; reducing the first speed of the target fan at a first gear and increasing the second speed of the cooling fan at a second gear until the first speed reaches a first target value or the second speed reaches a second target value.

[0118] In one embodiment, the determination of target fans and cooling fans involved in the processor executing a computer program includes: acquiring first location information of a target user and second location information of each fan in the air conditioner; acquiring the distance between each fan and the target user based on the first and second location information; determining the fan closest to the target user as the target fan, and determining the fans other than the target fan as cooling fans.

[0119] In one embodiment, the process of updating the opening degree of the expansion valve in the air conditioner when the processor executes the computer program includes: obtaining the current temperature of the evaporator tube in the air conditioner, the current opening degree of the expansion valve in the air conditioner, and the current speed of the fan in the air conditioner; calculating the desired opening degree of the expansion valve in the air conditioner based on the current temperature, the current opening degree, and the current speed; and updating the opening degree of the expansion valve according to the desired opening degree.

[0120] In one embodiment, the evaporator tube includes a first evaporator tube corresponding to the target fan and a second evaporator tube corresponding to the cooling fan; the expansion valve includes a first expansion valve corresponding to the target fan and a second expansion valve corresponding to the cooling fan; the processor, when executing the computer program, calculates the desired opening of the expansion valve in the air conditioner based on the current temperature, current opening degree, and current speed, including: calculating a first desired opening of the first expansion valve based on the current temperature of the first evaporator tube, the current opening degree of the first expansion valve, and the current speed of the target fan; and calculating a second desired opening of the second expansion valve based on the current temperature of the second evaporator tube, the current opening degree of the second expansion valve, and the current speed of the cooling fan.

[0121] In one embodiment, updating the opening of an expansion valve according to a desired opening when the processor executes a computer program includes: updating the opening of a first expansion valve according to a first desired opening; and updating the opening of a second expansion valve according to a second desired opening.

[0122] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon. When the computer program is executed by a processor, it performs the following steps: when the air conditioner has been in cooling mode for a target duration, acquiring the ambient temperature and the set temperature; when the ambient temperature is less than or equal to the target temperature and the difference between the ambient temperature and the set temperature is less than or equal to the target value, adjusting the speed of the air conditioner's fan according to a first preset cycle until the ambient temperature is greater than the target temperature or the difference between the ambient temperature and the set temperature is greater than the target value; during the adjustment of the air conditioner's fan speed, updating the opening of the air conditioner's expansion valve according to a second preset cycle until the opening of the expansion valve is less than the target minimum opening or the opening of the expansion valve is greater than the target maximum opening.

[0123] In one embodiment, the process of adjusting the speed of a fan in an air conditioner when the computer program is executed by a processor includes: determining a target fan and a cooling fan; reducing the first speed of the target fan at a first gear and increasing the second speed of the cooling fan at a second gear until the first speed reaches a first target value or the second speed reaches a second target value.

[0124] In one embodiment, the determination of target fans and cooling fans by the computer program being executed by the processor includes: acquiring first location information of a target user and second location information of each fan in the air conditioner; acquiring the distance between each fan and the target user based on the first and second location information; determining the fan closest to the target user as the target fan, and determining the fans other than the target fan as cooling fans.

[0125] In one embodiment, the process of updating the opening of the expansion valve in the air conditioner when the computer program is executed by the processor includes: obtaining the current temperature of the evaporator tube in the air conditioner, the current opening of the expansion valve in the air conditioner, and the current speed of the fan in the air conditioner; calculating the desired opening of the expansion valve in the air conditioner based on the current temperature, the current opening, and the current speed; and updating the opening of the expansion valve according to the desired opening.

[0126] In one embodiment, the evaporator tube includes a first evaporator tube corresponding to the target fan and a second evaporator tube corresponding to the cooling fan; the expansion valve includes a first expansion valve corresponding to the target fan and a second expansion valve corresponding to the cooling fan; the computer program, when executed by the processor, calculates the desired opening of the expansion valve in the air conditioner based on the current temperature, current opening degree, and current speed, including: calculating a first desired opening of the first expansion valve based on the current temperature of the first evaporator tube, the current opening degree of the first expansion valve, and the current speed of the target fan; and calculating a second desired opening of the second expansion valve based on the current temperature of the second evaporator tube, the current opening degree of the second expansion valve, and the current speed of the cooling fan.

[0127] In one embodiment, updating the opening of an expansion valve according to a desired opening when the computer program is executed by a processor includes: updating the opening of a first expansion valve according to a first desired opening; and updating the opening of a second expansion valve according to a second desired opening.

[0128] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps: when the air conditioner has been in cooling mode for a target duration, acquiring the ambient temperature and a set temperature; when the ambient temperature is less than or equal to the target temperature and the difference between the ambient temperature and the set temperature is less than or equal to the target value, adjusting the speed of the air conditioner's fan according to a first preset cycle until the ambient temperature is greater than the target temperature or the difference between the ambient temperature and the set temperature is greater than the target value; during the adjustment of the air conditioner's fan speed, updating the opening degree of the air conditioner's expansion valve according to a second preset cycle until the opening degree of the expansion valve is less than the target minimum opening degree or the opening degree of the expansion valve is greater than the target maximum opening degree.

[0129] In one embodiment, the process of adjusting the speed of a fan in an air conditioner when the computer program is executed by a processor includes: determining a target fan and a cooling fan; reducing the first speed of the target fan at a first gear and increasing the second speed of the cooling fan at a second gear until the first speed reaches a first target value or the second speed reaches a second target value.

[0130] In one embodiment, the determination of target fans and cooling fans by the computer program being executed by the processor includes: acquiring first location information of a target user and second location information of each fan in the air conditioner; acquiring the distance between each fan and the target user based on the first and second location information; determining the fan closest to the target user as the target fan, and determining the fans other than the target fan as cooling fans.

[0131] In one embodiment, the process of updating the opening of the expansion valve in the air conditioner when the computer program is executed by the processor includes: obtaining the current temperature of the evaporator tube in the air conditioner, the current opening of the expansion valve in the air conditioner, and the current speed of the fan in the air conditioner; calculating the desired opening of the expansion valve in the air conditioner based on the current temperature, the current opening, and the current speed; and updating the opening of the expansion valve according to the desired opening.

[0132] In one embodiment, the evaporator tube includes a first evaporator tube corresponding to the target fan and a second evaporator tube corresponding to the cooling fan; the expansion valve includes a first expansion valve corresponding to the target fan and a second expansion valve corresponding to the cooling fan; the computer program, when executed by the processor, calculates the desired opening of the expansion valve in the air conditioner based on the current temperature, current opening degree, and current speed, including: calculating a first desired opening of the first expansion valve based on the current temperature of the first evaporator tube, the current opening degree of the first expansion valve, and the current speed of the target fan; and calculating a second desired opening of the second expansion valve based on the current temperature of the second evaporator tube, the current opening degree of the second expansion valve, and the current speed of the cooling fan.

[0133] In one embodiment, updating the opening of an expansion valve according to a desired opening when the computer program is executed by a processor includes: updating the opening of a first expansion valve according to a first desired opening; and updating the opening of a second expansion valve according to a second desired opening.

[0134] 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.

[0135] 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.

[0136] 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. A method for updating the opening degree of an expansion valve, characterized in that, The method includes: When the air conditioner has been running in cooling mode for the target duration, obtain the ambient temperature and the set temperature. When the ambient temperature is less than or equal to the target temperature and the difference between the ambient temperature and the set temperature is less than or equal to the target value, the speed of the fan in the air conditioner is adjusted according to the first preset cycle until the ambient temperature is greater than the target temperature or the difference between the ambient temperature and the set temperature is greater than the target value. During the adjustment of the fan speed in the air conditioner, the current temperature of the evaporator tube, the current opening degree of the expansion valve, and the current fan speed are obtained according to a second preset cycle. The evaporator tube includes a first evaporator tube corresponding to the target fan and a second evaporator tube corresponding to the cooling fan. The expansion valve includes a first expansion valve corresponding to the target fan and a second expansion valve corresponding to the cooling fan. Based on the current temperature of the first evaporator tube, the current opening degree of the first expansion valve, and the current speed of the target fan, the first desired opening degree of the first expansion valve is calculated. Based on the current temperature of the second evaporator tube, the current opening degree of the second expansion valve, and the current speed of the refrigeration fan, the second desired opening degree of the second expansion valve is calculated. Update the opening degree of the first expansion valve according to the first desired opening degree; Update the opening of the second expansion valve according to the second desired opening degree until the opening degree of the expansion valve is less than the target minimum opening degree or the opening degree of the expansion valve is greater than the target maximum opening degree.

2. The method according to claim 1, characterized in that, The process of adjusting the speed of the fan in the air conditioner includes: Identify the target fan and refrigeration fan; The first speed of the target fan is reduced according to the first gear, and the second speed of the cooling fan is increased according to the second gear, until the first speed reaches the first target value or the second speed reaches the second target value.

3. The method according to claim 2, characterized in that, The determination of the target fan and the refrigeration fan includes: Obtain the first location information of the target user and the second location information of each fan in the air conditioner; Based on the first location information and the second location information, the distance between each wind turbine and the target user is obtained; The fan closest to the target user is identified as the target fan, and all other fans are identified as cooling fans.

4. An expansion valve opening update device, characterized in that, The device includes: The temperature acquisition module is used to acquire the ambient temperature and the set temperature when the air conditioner has been running in cooling mode for a target duration. The speed adjustment module is used to adjust the speed of the fan in the air conditioner according to a first preset cycle when the ambient temperature is less than or equal to the target temperature and the difference between the ambient temperature and the set temperature is less than or equal to the target value, until the ambient temperature is greater than the target temperature or the difference between the ambient temperature and the set temperature is greater than the target value. An opening update module is used to, during the process of adjusting the fan speed in the air conditioner, acquire the current temperature of the evaporator tube, the current opening of the expansion valve, and the current speed of the fan according to a second preset cycle. The evaporator tube includes a first evaporator tube corresponding to the target fan and a second evaporator tube corresponding to the cooling fan. The expansion valve includes a first expansion valve corresponding to the target fan and a second expansion valve corresponding to the cooling fan. Based on the current temperature of the first evaporator tube, the current opening of the first expansion valve, and the current speed of the target fan, a first desired opening of the first expansion valve is calculated. Based on the current temperature of the second evaporator tube, the current opening of the second expansion valve, and the current speed of the cooling fan, a second desired opening of the second expansion valve is calculated. The opening of the first expansion valve is updated according to the first desired opening. The opening of the second expansion valve is updated according to the second desired opening, until the opening of the expansion valve is less than the target minimum opening or the opening of the expansion valve is greater than the target maximum opening.

5. An air conditioning device, comprising a fan, an expansion valve, 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 3.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 3.

7. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 3.

Images