Anti-condensation control method and device of air conditioner, storage medium and electronic equipment

Abstract

The application provides an anti-condensation control method and device of an air conditioner, a storage medium and an electronic device. The method comprises the following steps: adjusting the operation mode of the air conditioner to a refrigeration operation mode, and obtaining a plurality of pipe temperatures after the air conditioner operates in the refrigeration operation mode for a target time period, wherein the pipe temperature is the temperature of the refrigerant in the finned tube of the indoor heat exchanger; obtaining the maximum pipe temperature and the minimum pipe temperature in the plurality of pipe temperatures, and obtaining the first difference between the maximum pipe temperature and the minimum pipe temperature; in the case where the first difference is greater than a preset difference, generating condensation alarm information, wherein the condensation alarm information is used to indicate whether the refrigeration pipeline is blocked, and the blocked pipeline is dredged to prevent condensation. That is, the risk of condensation is determined according to the difference between the maximum value and the minimum value of the plurality of pipe temperatures, and in the case where there is a risk of condensation, the refrigeration pipeline is detected in time to prevent condensation caused by the blockage of the refrigeration pipeline.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioners, in particular, an anti-condensation control method and device of an air conditioner, a storage medium and an electronic device. BACKGROUND

[0002] With the popularization of air conditioning products, people have higher and higher requirements for the comfort of air conditioning products, and air conditioning condensation has become one of the problems that people focus on and the product needs to solve.

[0003] Air conditioning condensation is caused by hot air encountering a low-temperature object (such as cold wind) and the temperature of the low-temperature object being lower than the dew point temperature of the hot air, so that the water vapor in the hot air is condensed to produce condensation water. When the condensation water cannot be smoothly guided to the water pan, it will drip in the machine body and flow out from the air outlet or other parts of the panel. The hazards of condensation are mainly as follows: 1. The condensation produced by the air conditioner will cause the internal part of the unit to be damp for a long time, which is easy to cause the indoor mold to be seriously out of standard, endangering people's health. 2. Condensation water accumulated in the air conditioner for a long time may seep into the electrical box, corrode the components or cause short circuit, which may affect the use of the user, reduce the service life of the air conditioner components, or even cause safety hazards. 3. In terms of economy, the condensation will cause a large loss of cold energy of the entire system, increasing the operation cost. Therefore, condensation is one of the key problems that need to be solved in improving the comfort of air conditioning and ensuring electrical safety.

[0004] In some solutions, whether there is a condensation risk is determined only by the temperature of the coil, and then the opening degree of the electronic expansion valve is adjusted to achieve anti-condensation treatment, so the precision of the anti-condensation control is low. SUMMARY

[0005] The main purpose of the present application is to provide an anti-condensation control method, device, storage medium and electronic device of an air conditioner to at least solve the problem of low precision of the anti-condensation control of the current anti-condensation control method of the air conditioner.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, an anti-condensation control method of an air conditioner is provided, which comprises: adjusting the operation mode of the air conditioner to a refrigeration operation mode, and obtaining a plurality of pipe temperatures after a target time period of the refrigeration operation mode, the pipe temperature being the temperature of the refrigerant in the finned tube of the indoor heat exchanger; obtaining the maximum pipe temperature and the minimum pipe temperature in the plurality of pipe temperatures, and obtaining the first difference between the maximum pipe temperature and the minimum pipe temperature; in the case that the first difference is greater than a preset difference, generating a condensation alarm information, the condensation alarm information being used to indicate whether the refrigeration pipeline is blocked, and in the case of blockage, the anti-condensation is performed by dredging.

[0007] Optionally, after the first difference between the maximum temperature in the tube and the minimum temperature in the tube is obtained, the method further comprises: obtaining a real-time running frequency of a compressor of the air conditioner in the case that the first difference is less than or equal to the preset difference; determining a frequency interval in which the real-time running frequency of the compressor is located, and determining a superheat degree corresponding to the frequency interval to prevent condensation.

[0008] Optionally, determining the superheat degree corresponding to the frequency interval comprises: obtaining a temperature average of a plurality of the temperatures in the tube and a suction temperature of the air conditioner; obtaining a second difference between the suction temperature of the air conditioner and the temperature average; and determining the corresponding superheat degree according to the frequency interval and the second difference.

[0009] Optionally, determining the superheat degree corresponding to the frequency interval according to the frequency interval and the second difference comprises: determining a preset upper limit value and a preset lower limit value according to the frequency interval; increasing an opening degree of an expansion valve to adjust the opening degree of the expansion valve to a first preset opening degree in the case that the second difference is greater than the preset upper limit value; reducing the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a second preset opening degree in the case that the second difference is less than the preset lower limit value, and the first preset opening degree and the second preset opening degree corresponding to different frequency intervals are also different; and maintaining the opening degree of the expansion valve unchanged in the case that the second difference is greater than or equal to the preset lower limit value and less than or equal to the preset upper limit value; wherein the opening degree of the expansion valve directly affects the superheat degree.

[0010] Optionally, determining the superheat degree corresponding to the frequency interval according to the frequency interval and the second difference comprises: determining whether an oil level of the compressor is higher than a warning oil level in the case that the frequency interval is a preset high-frequency interval and the second difference is within a preset difference range; maintaining the opening degree of the expansion valve unchanged in the case that the oil level of the compressor is higher than the warning oil level; and reducing the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a third preset opening degree in the case that the oil level of the compressor is not higher than the warning oil level; wherein the opening degree of the expansion valve directly affects the superheat degree.

[0011] Optionally, after the opening degree of the expansion valve is maintained unchanged, the method further comprises: obtaining a real-time running frequency of the compressor, and obtaining a plurality of the temperatures in the tube and the suction temperature again after the real-time running frequency of the compressor is obtained.

[0012] Optionally, the target time period is a time period starting from a time point at which the air conditioner starts to enter the cooling operation mode and ending at a time point at which the air conditioner is in stable operation, and the stable operation of the air conditioner indicates that a fluctuation of an operating frequency of a compressor of the air conditioner within a preset time is less than a preset fluctuation.

[0013] According to another aspect of the present application, there is provided an anti-condensation control device of an air conditioner, comprising: a processing unit configured to adjust an operation mode of the air conditioner to a cooling operation mode, and obtain a plurality of pipe temperatures of a refrigerant in a finned tube of an indoor heat exchanger after the air conditioner is operated in the cooling operation mode for a target time period; a first obtaining unit configured to obtain a maximum pipe temperature and a minimum pipe temperature from the plurality of pipe temperatures, and obtain a first difference between the maximum pipe temperature and the minimum pipe temperature; and an anti-condensation unit configured to generate a condensation warning information in a case where the first difference is greater than a preset difference, the condensation warning information being configured to indicate whether the refrigerant pipeline is blocked, and to unblock the refrigerant pipeline in a case where the refrigerant pipeline is blocked to prevent condensation.

[0014] According to still another aspect of the present application, there is provided a computer readable storage medium comprising a stored program, wherein the program, when executed, controls a device in which the computer readable storage medium is located to perform any of the anti-condensation control methods of the air conditioner.

[0015] According to yet another aspect of the present application, there is provided an electronic device comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs comprise a program configured to perform any of the anti-condensation control methods of the air conditioner.

[0016] The technical solution of the present application adjusts the operation mode of the air conditioner to the cooling operation mode, and obtains a plurality of pipe temperatures after the air conditioner is operated in the cooling operation mode for a target time period; obtains a maximum pipe temperature and a minimum pipe temperature from the plurality of pipe temperatures, and obtains a first difference between the maximum pipe temperature and the minimum pipe temperature; and generates a condensation warning information in a case where the first difference is greater than a preset difference, the condensation warning information being configured to indicate whether the refrigerant pipeline is blocked, and to unblock the refrigerant pipeline in a case where the refrigerant pipeline is blocked to prevent condensation. That is, the risk of condensation is determined according to the difference between the maximum value and the minimum value of the plurality of pipe temperatures, and in a case where there is a risk of condensation, the refrigerant pipeline is detected in time to prevent condensation caused by the blockage of the refrigerant pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 A hardware structure block diagram of a mobile terminal for performing an anti-condensation control method for an air conditioner, according to an embodiment of this application, is shown.

[0019] Figure 2 A schematic flowchart of an anti-condensation control method for an air conditioner according to an embodiment of this application is shown.

[0020] Figure 3 A schematic diagram of an air conditioner structure according to an embodiment of this application is shown;

[0021] Figure 4 A flowchart illustrating a specific anti-condensation control method for an air conditioner according to an embodiment of this application is shown.

[0022] Figure 5 A structural block diagram of an anti-condensation control device for an air conditioner provided according to an embodiment of this application is shown.

[0023] The above figures include the following reference numerals:

[0024] 1. Outdoor temperature sensor; 2. Gas-liquid separator; 3. Outdoor heat exchanger; 4. Indoor heat exchanger; 5. Liquid receiver; 6. Compressor; 7. Electronic expansion valve; 8. Indoor temperature sensor; 9. Four-way reversing valve; 10. Thermostat; 11. Unit control unit; 12. Communication line; 13. Compressor preset alarm oil level; 14. Condensation warning alarm. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0028] As introduced in the background, the precision of the anti-condensation control method of the air conditioner in the prior art is low. To solve the problem of low precision of the anti-condensation control method of the air conditioner, embodiments of the present application provide an anti-condensation control method, device, storage medium and electronic equipment of an air conditioner.

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application.

[0030] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking the case of running on a mobile terminal, Figure 1 is a hardware structure block diagram of a mobile terminal of an anti-condensation control method of an air conditioner according to an embodiment of the present application. As shown in Figure 1 , the mobile terminal can include one or more (only one is shown in Figure 1 ) processor 102 (the processor 102 can include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the above-mentioned mobile terminal can further include a transmission device 106 for communication function and an input and output device 108. Those skilled in the art can understand that Figure 1 The structure shown is only schematic, which does not limit the structure of the above-mentioned mobile terminal. For example, the mobile terminal can include more or less components than Figure 1 shown, or have a different configuration from Figure 1 shown.

[0031] The memory 104 can be used to store computer programs, such as software programs of application software and modules, such as a computer program corresponding to the anti-condensation control method of the air conditioner in the embodiments of the present application. The processor 102 can execute various functional applications and data processing, i.e., implement the above method, by running the computer program stored in the memory 104. The memory 104 can include a high-speed random access memory, and can further include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some examples, the memory 104 can further include a memory remotely arranged with respect to the processor 102, and the remote memory can be connected to the mobile terminal through a network. Examples of the network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The transmission device 106 is used to receive or send data through a network. The specific examples of the network can include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet in a wireless manner.

[0032] In the embodiments of the present application, an anti-condensation control method of an air conditioner running on a mobile terminal, a computer terminal or a similar computing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0033] Figure 2 is a flowchart of the anti-condensation control method of the air conditioner according to the embodiments of the present application. As shown in Figure 2 , the method includes the following steps:

[0034] In step S201, the operation mode of the air conditioner is adjusted to the refrigeration operation mode, and after the target time period in the refrigeration operation mode, a plurality of pipe temperatures are obtained, the pipe temperature being the temperature of the refrigerant in the finned tube of the indoor heat exchanger;

[0035] Specifically, the air conditioner in the present application can be a variable frequency heat pump, a multi-split air conditioner, a wall-mounted air conditioner, a cabinet air conditioner, etc.

[0036] Wherein, after the target time period in the refrigeration operation mode, the obtained multiple tube temperatures are more accurate, and can more accurately reflect whether the condensation phenomenon occurs; that is, the tube temperature obtained as soon as the refrigeration operation mode is entered is not stable, which is not conducive to subsequent judgment.

[0037] Specifically, the target time period is a time period starting from the time when the air conditioner starts to enter the refrigeration operation mode and ending at the time when the air conditioner is in stable operation, and the stable operation of the air conditioner indicates that the fluctuation of the operating frequency of the compressor of the air conditioner within a preset time is less than a preset fluctuation. In an ideal case, the compressor frequency f1 corresponding to the reading time t1, and the compressor frequency f2 corresponding to the time t1+T (the time interval T is determined according to the frequency increasing rate of the unit, generally 5min-10min). When f1=f2, it indicates that the unit is in a stable state, and F=f1=f2. If f1≠f2, it indicates that the unit has not yet stabilized.

[0038] Figure 3 A structure schematic diagram of an air conditioner according to an embodiment of the present application is shown as follows: Figure 3 As shown, the air conditioner comprises an outdoor temperature sensing bag 1, a gas-liquid separator 2, an outdoor heat exchanger 3, an indoor heat exchanger 4, a liquid accumulator 5, a compressor 6, an electronic expansion valve 7, an indoor temperature sensing bag 8, a four-way reversing valve 9, a temperature controller 10, a unit control unit 11, a communication line 12, a compressor preset alarm oil level 13, and a condensation prompt alarm 14. The specific connection mode is shown as follows: Figure 3 As described above, the tube temperature is the temperature of the refrigerant in the finned tube of the indoor heat exchanger 4.

[0039] In step S202, the maximum tube temperature and the minimum tube temperature in the multiple tube temperatures are obtained, and a first difference value of the maximum tube temperature and the minimum tube temperature is obtained.

[0040] Wherein, the number of tube temperatures can be set according to the specific structure of the air conditioner, for example, a large air conditioner is provided with more tube temperatures, and a small air conditioner is provided with fewer tube temperatures.

[0041] In step S203, in the case where the first difference value is greater than a preset difference value, a condensation alarm information is generated, and the condensation alarm information is used to indicate whether there is a refrigeration pipeline blockage, and to dredge in the case of blockage to prevent condensation.

[0042] Wherein, the detection of whether there is a refrigeration pipeline blockage can be automatic detection or notification of maintenance personnel for detection.

[0043] Wherein, the generation of condensation is mostly due to the uneven distribution of refrigerant flow in the evaporator flow path, resulting in the formation of high-temperature air dew point temperature greater than low-temperature air after the air passing through the evaporator to reduce the humidity and then blowing out of the evaporator. When the high and low temperature air is mixed in the air duct, secondary condensation is formed, which is blown out at the air outlet. That is, in the case where the maximum and minimum values of the temperature in the tube exceed the preset difference, condensation is easily generated due to uneven evaporator flow path.

[0044] The anti-condensation control method of the air conditioner of the present application adjusts the operating mode of the air conditioner to the refrigeration operating mode, and obtains a plurality of tube temperatures after the target time period of the refrigeration operating mode. The maximum tube temperature and the minimum tube temperature in the plurality of tube temperatures are obtained, and the first difference between the maximum tube temperature and the minimum tube temperature is obtained. In the case where the first difference is greater than the preset difference, a condensation alarm information is generated, which is used to indicate whether there is a refrigeration pipeline blockage, and in the case of blockage, the blockage is dredged to prevent condensation. That is, the risk of condensation is determined according to the difference between the maximum and minimum values of the plurality of tube temperatures, and in the case of the risk of condensation, the refrigeration pipeline is detected in time to prevent condensation due to the blockage of the refrigeration pipeline.

[0045] In the embodiment of the present application, after obtaining the first difference between the maximum tube temperature and the minimum tube temperature, the method further comprises:

[0046] In the case where the first difference is less than or equal to the preset difference, the real-time operating frequency of the compressor of the air conditioner is obtained.

[0047] The frequency interval in which the real-time operating frequency of the compressor is determined, and the superheat corresponding to the frequency interval is determined to prevent condensation.

[0048] Wherein, as the frequency increases during the operation of the unit, the pressure of the refrigerant flowing through the indoor is low, the evaporation temperature continues to decrease, and the outlet temperature also decreases, which is more prone to condensation phenomenon. In order to prevent the condensation of the unit, the superheat should be lower as the frequency increases, so the method sets different superheats for different frequency intervals to achieve step-by-step adjustment of the superheat.

[0049] That is, in the case where the difference between the maximum and minimum values of the plurality of tube temperatures is small, different superheats are set for different frequency intervals to achieve step-by-step adjustment of the superheat. It is suitable for: as the frequency increases during the operation of the unit, the pressure of the refrigerant flowing through the indoor is low, the evaporation temperature continues to decrease, and the outlet temperature also decreases, which is more prone to condensation phenomenon. That is, the mechanism of this step-by-step adjustment in the present application ingeniously solves this defect.

[0050] More specifically, in the embodiment of the present application, the superheat corresponding to the frequency interval is determined, comprising:

[0051] obtaining a temperature average of the temperatures in the plurality of tubes and a suction temperature of the air conditioner;

[0052] obtaining a second difference between the suction temperature of the air conditioner and the temperature average;

[0053] In this way, the temperature average of the temperatures in the plurality of tubes is obtained, so that the accidental error of the temperature in the tube is reduced, and the accuracy of the temperature in the tube is improved.

[0054] The suction temperature of the air conditioner refers to the temperature of the refrigerant entering the suction port of the compressor.

[0055] According to the frequency interval and the size of the second difference, a corresponding superheat degree is determined.

[0056] That is, the superheat degree corresponding to the frequency interval is not only related to the size of the frequency of the frequency interval itself, but also related to the size of the difference between the temperature average and the suction temperature of the air conditioner. In this way of determining the superheat degree, the frequency interval, the temperature average, and the suction temperature are comprehensively considered, so that the control accuracy is higher.

[0057] In the embodiment of the application, according to the frequency interval and the size of the second difference, a corresponding superheat degree is determined, including:

[0058] According to the frequency interval, a preset upper limit value and a preset lower limit value are determined.

[0059] That is, different preset upper limit values and preset lower limit values are set for different frequency intervals to realize hierarchical adjustment. For example, the frequency interval is divided into a low frequency interval, a medium frequency interval, and a high frequency interval, and then different preset upper limit values and preset lower limit values are set for the three frequency intervals. Of course, the low frequency interval, the medium frequency interval, and the high frequency interval are only exemplary, and the frequency interval can also be divided into other forms.

[0060] In the case where the second difference is greater than the preset upper limit value, the opening degree of the expansion valve is increased to adjust the opening degree of the expansion valve to a first preset opening degree.

[0061] That is, in the case where the second difference between the suction temperature of the air conditioner and the temperature average is large, the opening degree of the expansion valve needs to be increased to reduce the second difference between the suction temperature of the air conditioner and the temperature average, so that the second difference between the suction temperature of the air conditioner and the temperature average satisfies greater than or equal to the preset lower limit value and less than or equal to the preset upper limit value when the opening degree of the expansion valve is adjusted to the first preset opening degree.

[0062] In the case where the second difference is less than the preset lower limit value, the opening degree of the expansion valve is reduced to adjust the opening degree of the expansion valve to a second preset opening degree, and the first preset opening degree and the second preset opening degree corresponding to different frequency intervals are also different.

[0063] that is, in the case that the second difference between the suction temperature of the air conditioner and the temperature average value is small, the opening degree of the expansion valve needs to be reduced to increase the second difference between the suction temperature of the air conditioner and the temperature average value, so as to achieve that the second difference between the suction temperature of the air conditioner and the temperature average value satisfies greater than or equal to the preset lower limit value and less than or equal to the preset upper limit value when the opening degree of the expansion valve is adjusted to the first preset opening degree;

[0064] in the case that the second difference is greater than or equal to the preset lower limit value and less than or equal to the preset upper limit value, the opening degree of the expansion valve is maintained unchanged;

[0065] wherein the size relationship between the second preset opening degree and the first preset opening degree is not limited, since the initial opening degree may be different, the initial opening degree is affected by multiple factors such as water inlet temperature, outdoor environment temperature, frequency, etc.

[0066] that is, in the case that the second difference between the suction temperature of the air conditioner and the temperature average value is in the middle, the opening degree of the expansion valve is maintained unchanged.

[0067] wherein the opening degree of the expansion valve directly affects the superheat degree.

[0068] As set above, according to the size relationship between the second difference between the suction temperature of the air conditioner and the temperature average value and the preset upper limit value and the preset lower limit value, different opening degrees of the expansion valve are set correspondingly, which ensures the accuracy of the anti-condensation adjustment.

[0069] In the embodiment of the application, the corresponding superheat degree is determined according to the frequency interval and the size of the second difference, comprising:

[0070] in the case that the frequency interval is the preset high frequency interval and the second difference is in the preset difference range, it is determined whether the oil level of the compressor is higher than the warning oil level;

[0071] the preset difference range is specifically: a range greater than or equal to the preset lower limit value and less than or equal to the preset upper limit value;

[0072] in the case that the oil level of the compressor is higher than the warning oil level, the opening degree of the expansion valve is maintained unchanged;

[0073] in the case that the oil level of the compressor is not higher than the warning oil level, the opening degree of the expansion valve is reduced to adjust the opening degree of the expansion valve to a third preset opening degree; wherein the opening degree of the expansion valve directly affects the superheat degree.

[0074] That is, at high frequency, the superheat degree is low, and the compressor may have the risk of suction liquid, the application sets the warning oil level of the compressor at high frequency to ensure the safe operation of the compressor.

[0075] Further, after the opening degree of the expansion valve is maintained unchanged, the method further comprises:

[0076] The real-time running frequency of the compressor is obtained, and after obtaining the real-time running frequency of the compressor, the temperatures in the plurality of tubes and the suction temperature are obtained again. After obtaining the temperatures in the plurality of tubes and the suction temperature again, subsequent anti-condensation control is performed.

[0077] In order for those skilled in the art to more clearly understand the technical solutions of the present application, the implementation process of the anti-condensation control method of the air conditioner of the present application will be described in detail below in conjunction with specific embodiments.

[0078] The present embodiment relates to a specific anti-condensation control method for an air conditioner, as shown in Figure 4 , comprising:

[0079] Before the unit is shipped, the relationship between the compressor frequency, the superheat degree and whether the unit will produce condensation water is tested. According to the data obtained by the test, the compressor frequency is divided into three levels of low frequency, medium frequency and high frequency, the superheat degree under the condition of not producing condensation water is determined for each level, and it is built into the chip (equivalent to CPU) of the unit.

[0080] When the unit is turned on, the cooling mode is set, the compressor frequency f1 corresponding to the time t1 is read, and the compressor frequency f2 corresponding to the time t1+T (the time interval T is determined according to the frequency increasing rate of the unit, generally 5min-10min). When f1=f2, it indicates that the unit is in a stable state, and F=f1=f2 is set. If f1≠f2, it indicates that the unit has not stabilized, and the cycle of reading the time t1 is returned.

[0081] When the unit is running stably, the values of the temperatures in the tubes T u1 , T u2 , …, T un and the suction temperature T 吸 are read. The maximum value is selected from the temperatures in the tubes T u1 , T u2 , …, T un as T umax , the minimum value is selected as T umin , and the relationship T umax -T umin ≤d is verified. If the relationship is not established, a condensation alarm is prompted, and the maintenance personnel needs to check whether there is a blockage in the flow path in time. If the relationship is established, the next step is entered, the average value of all the temperatures in the tubes is taken, and T Uavg =(T u1+ T u2+ …+T un ) / n is set.

[0082] If the frequency F is in the low frequency range, i.e. 0≤F<F1, it is judged whether T 吸 -TUavg If the relationship is not established, the opening degree a of the electronic expansion valve is slowly increased, and the opening degree K of the electronic expansion valve at this time is defined i , and the program of reading the temperature in the pipe and the temperature of the suction gas is returned to.

[0083] If T 吸 -T Uavg , the next logical judgment is entered, that is, whether the relationship T 吸 -T Uavg is established. If the relationship is not established, the opening degree a of the electronic expansion valve is slowly decreased, and the opening degree K of the electronic expansion valve at this time is defined i , and the program of reading the temperature in the pipe and the temperature of the suction gas is returned to.

[0084] If T 吸 -T Uavg , the opening degree K of the electronic expansion valve at this time is read i , and the unit is stably operated at this opening degree. In the process of stably operating the unit, the frequency F of the compressor is read, and the cycle of reading the temperature in the pipe and the temperature of the suction gas is returned to.

[0085] If the frequency F is not in the low frequency interval, it is judged that the relationship 0≤F<F1 is not established, and the next logical judgment is entered, that is, whether the relationship F1≤F<F2 is established. If the relationship is established, it indicates that the frequency of the compressor is in the medium frequency interval. When the frequency of the compressor is in the medium frequency interval, the next logical judgment is entered, that is, whether the relationship T 吸 -T Uavg is established. If the relationship is not established, the opening degree a of the electronic expansion valve is slowly increased, and the opening degree K of the electronic expansion valve at this time is defined i , and the program of reading the temperature in the pipe and the temperature of the suction gas is returned to.

[0086] If T 吸 -T Uavg , the next logical judgment is entered, that is, whether the relationship T 吸 -T Uavg is established. If the relationship is not established, the opening degree a of the electronic expansion valve is slowly decreased, and the opening degree K of the electronic expansion valve at this time is defined i , and the program of reading the temperature in the pipe and the temperature of the suction gas is returned to. If T 吸 -T Uavg , the opening degree K of the electronic expansion valve at this time is read i , and the unit is stably operated at this opening degree. In the process of stably operating the unit, the frequency F of the compressor is read, and the cycle of reading the temperature in the pipe and the temperature of the suction gas is returned to.

[0087] If the frequency F is not in the middle frequency interval, it is judged that the relationship F1≤F<F2 is not established, and the next logical judgment is entered, i.e. whether the relationship F2≤F≤F3 is established. If the relationship is established, it indicates that the compressor frequency is in the high frequency interval; if the relationship is not established, it returns to the logical 0≤F<F1, and it is judged whether the relationship 0≤F<F1 is established.

[0088] When the compressor frequency is in the high frequency interval, the next logical judgment is entered, i.e. whether the relationship T 吸 -T Uavg ≤C+δ is established. If the relationship is not established, the opening degree a of the electronic expansion valve is slowly increased, and the opening degree of the electronic expansion valve at this time is defined as K i , and it returns to the program of reading the pipe temperature and the suction temperature.

[0089] If the relationship T 吸 -T Uavg ≤C+δ is established, the next logical judgment is entered, i.e. whether the relationship T 吸 -T Uavg ≥C-δ is established. If the relationship is not established, the opening degree a of the electronic expansion valve is slowly reduced, and the opening degree of the electronic expansion valve at this time is defined as K i , and it returns to the program of reading the pipe temperature and the suction temperature.

[0090] If the relationship T 吸 -T Uavg ≥C-δ is established, it is judged whether the oil level of the compressor is higher than the preset alarm oil level at this time. If the oil level of the compressor is lower than the preset alarm oil level at this time, the opening degree a of the electronic expansion valve is slowly reduced, and the opening degree of the electronic expansion valve at this time is defined as K i , and it returns to the program of reading the pipe temperature and the suction temperature. If the oil level of the compressor is higher than the preset alarm oil level at this time, the opening degree K i of the electronic expansion valve at this time is read, and the unit is stably operated at this opening degree. In the process of stable operation of the unit, the frequency F of the compressor is read, and it returns to the cycle of reading the pipe temperature and the suction temperature.

[0091] The present application can improve the accuracy of the pipe temperature, and can achieve the purpose of preventing condensation by classifying the superheat degree.

[0092] The application can exclude the existence of uneven flow distribution in the flow path by detecting the temperature in multiple pipes and detecting whether the difference between the maximum and minimum values of the temperature in the pipe is within a reasonable range. Meanwhile, the accuracy of the temperature in the pipe can be improved by averaging the temperature in multiple pipes, and the compressor frequency is divided into three levels of low frequency, medium frequency and high frequency, and different superheat degrees are set in each level interval to realize the hierarchical adjustment of the superheat degree. This method needs to obtain the relationship between the compressor frequency, the superheat degree and whether the unit is condensed in the early stage, and prevents condensation by adjusting the superheat degree. This method can be widely applied to various air conditioning products.

[0093] It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from here.

[0094] The application also provides an anti-condensation control device of an air conditioner. It should be noted that the anti-condensation control device of the air conditioner of the application can be used to execute the anti-condensation control method for the air conditioner provided by the application. The device is used to realize the above-mentioned embodiments and preferred embodiments, and will not be described again. As used below, the term "module" can be a combination of software and / or hardware that realizes a predetermined function. Although the device described in the following embodiments is preferably realized in software, hardware or a combination of software and hardware is also possible and is conceived.

[0095] The anti-condensation control device of the air conditioner provided by the application is described below.

[0096] Figure 5 is a schematic diagram of the anti-condensation control device of the air conditioner according to the application. As shown in Figure 5 , the device includes:

[0097] The processing unit 51 is configured to adjust the operation mode of the air conditioner to the refrigeration operation mode, and obtain a plurality of pipe temperatures after the target time period of the refrigeration operation mode, the pipe temperature being the temperature of the refrigerant in the indoor heat exchanger finned tube.

[0098] The first obtaining unit 52 is configured to obtain the maximum pipe temperature and the minimum pipe temperature in the plurality of pipe temperatures, and obtain the first difference between the maximum pipe temperature and the minimum pipe temperature.

[0099] The anti-condensation unit 53 is configured to generate a condensation alarm information in the case that the first difference is greater than the preset difference, the condensation alarm information being used to indicate whether there is a refrigerant pipe blockage, and to dredge in the case of blockage to prevent condensation.

[0100] The anti-condensation control device of the air conditioner of the present application adjusts the operation mode of the air conditioner to the refrigeration operation mode through the processing unit, and obtains a plurality of pipe temperatures after the air conditioner operates in the refrigeration operation mode for a target time period; the first obtaining unit obtains the maximum pipe temperature and the minimum pipe temperature among the plurality of pipe temperatures, and obtains a first difference between the maximum pipe temperature and the minimum pipe temperature; the anti-condensation unit generates a condensation warning information in the case that the first difference is greater than a preset difference, and the condensation warning information is used to indicate whether there is a refrigeration pipeline blockage, and the anti-condensation is performed by dredging in the case of blockage. That is, the risk of condensation is determined according to the difference between the maximum value and the minimum value of the plurality of pipe temperatures, and the refrigeration pipeline is detected in a timely manner in the case of the risk of condensation to prevent condensation caused by the blockage of the refrigeration pipeline.

[0101] In the embodiment of the present application, the device further comprises a second obtaining unit and a determining unit, the second obtaining unit is configured to obtain the real-time operation frequency of the compressor of the air conditioner in the case that the first difference between the maximum pipe temperature and the minimum pipe temperature is less than or equal to the preset difference after obtaining the first difference; and the determining unit is configured to determine the frequency interval in which the real-time operation frequency of the compressor is located, and determine the superheat degree corresponding to the frequency interval to perform anti-condensation. That is, in the case that the difference between the maximum value and the minimum value of the plurality of pipe temperatures is small, different superheat degrees are set for different frequency intervals to realize the hierarchical adjustment of the superheat degree. It is suitable for: as the frequency increases during the operation of the unit, the pressure of the refrigerant flowing through the indoor is low, the evaporation temperature continues to decrease, and the outlet temperature also decreases, which is more prone to condensation phenomenon. That is, the hierarchical adjustment mechanism in the present application ingeniously solves this defect.

[0102] In the embodiment of the present application, the determining unit comprises a first obtaining module, a second obtaining module and a determining module, the first obtaining module is configured to obtain the temperature average of the plurality of pipe temperatures and the suction temperature of the air conditioner; the second obtaining module is configured to obtain the size of the second difference between the suction temperature of the air conditioner and the temperature average; and the determining module is configured to determine the corresponding superheat degree according to the frequency interval and the size of the second difference. That is, the superheat degree corresponding to the frequency interval is not only related to the size of the frequency of the frequency interval itself, but also related to the size of the difference between the temperature average and the suction temperature of the air conditioner. This way of determining the superheat degree considers the frequency interval, the temperature average and the suction temperature comprehensively, so that the control precision is high.

[0103] In the embodiments of the present application, the determining module comprises a first determining submodule, a first adjusting submodule, a second adjusting submodule and a third adjusting submodule. The first determining submodule is configured to determine a preset upper limit value and a preset lower limit value according to the frequency interval. The first adjusting submodule is configured to increase the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a first preset opening degree when the second difference is greater than the preset upper limit value. The second adjusting submodule is configured to decrease the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a second preset opening degree when the second difference is less than the preset lower limit value. The first preset opening degree and the second preset opening degree corresponding to different frequency intervals are also different. The third adjusting submodule is configured to maintain the opening degree of the expansion valve unchanged when the second difference is greater than or equal to the preset lower limit value and less than or equal to the preset upper limit value. The opening degree of the expansion valve directly affects the superheat. That is, different preset upper limit values and preset lower limit values are set for different frequency intervals to achieve step adjustment. For example, the frequency interval is divided into a low frequency interval, a medium frequency interval and a high frequency interval. Different preset upper limit values and preset lower limit values are set for the three frequency intervals. That is, the opening degree of the expansion valve needs to be increased when the second difference between the suction temperature of the air conditioner and the temperature average value is large. That is, the opening degree of the expansion valve needs to be decreased when the second difference between the suction temperature of the air conditioner and the temperature average value is small. That is, the opening degree of the expansion valve can be maintained unchanged when the second difference between the suction temperature of the air conditioner and the temperature average value is moderate. According to the size relationship between the second difference between the suction temperature of the air conditioner and the temperature average value and the preset upper limit value and the preset lower limit value, different opening degrees of the expansion valve are set to ensure the accuracy of the anti-condensation adjustment.

[0104] In the embodiments of the present application, the determining module further comprises a second determining submodule, a fourth adjusting submodule and a fifth adjusting submodule. The second determining submodule is configured to determine whether the oil level of the compressor is higher than a warning oil level when the frequency interval is a preset high frequency interval and the second difference is within a preset difference range. The fourth adjusting submodule is configured to maintain the opening degree of the expansion valve unchanged when the oil level of the compressor is higher than the warning oil level. The fifth adjusting submodule is configured to decrease the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a third preset opening degree when the oil level of the compressor is not higher than the warning oil level. The opening degree of the expansion valve directly affects the superheat. That is, the superheat is low when the frequency is high, and the compressor may have the risk of suction liquid. The present application sets the warning oil level of the compressor when the frequency is high to ensure the safe operation of the compressor.

[0105] In the embodiments of the present application, the method further comprises a third acquisition unit. The third acquisition unit is configured to acquire the real-time operating frequency of the compressor after maintaining the opening degree of the expansion valve unchanged, and acquire the multiple tube temperatures and the suction temperature again after acquiring the real-time operating frequency of the compressor. The multiple tube temperatures and the suction temperature are acquired again, and subsequent anti-condensation control is performed.

[0106] In the embodiment of the present application, the target time period is a time period starting from the time when the air conditioner starts to enter the cooling operation mode and ending at the time when the air conditioner is in stable operation, and the stable operation of the air conditioner indicates that the fluctuation of the operation frequency of the compressor of the air conditioner within a preset time is less than a preset fluctuation.

[0107] The anti-condensation control device of the air conditioner comprises a processor and a memory, and the above-mentioned processing unit, the first acquisition unit, the anti-condensation unit and the like are stored in the memory as program units, and the corresponding functions are realized by the processor executing the above-mentioned program units stored in the memory. The above-mentioned modules are located in the same processor; or, the above-mentioned modules are located in different processors in any combination.

[0108] The processor contains a core, and the core calls the corresponding program unit from the memory. The core can be one or more, and precise anti-condensation control is realized by adjusting the core parameters.

[0109] The memory can include non-permanent memory in a computer readable medium, random access memory (RAM) and / or non-volatile memory such as read-only memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.

[0110] The embodiment of the present application provides an electronic device, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs include a program for executing any one of the anti-condensation control methods of the air conditioner.

[0111] The embodiment of the present application provides a computer readable storage medium, which comprises a stored program, wherein when the program is running, the computer readable storage medium controls the device where the computer readable storage medium is located to execute the anti-condensation control method of the air conditioner.

[0112] Specifically, the anti-condensation control method of the air conditioner comprises:

[0113] Step S201, adjusting the operation mode of the air conditioner to the cooling operation mode, and after the air conditioner is operated for a target time period, acquiring a plurality of pipe temperatures, the pipe temperature being the temperature of the refrigerant in the finned tube of the indoor heat exchanger;

[0114] Step S202, acquiring the maximum pipe temperature and the minimum pipe temperature in the plurality of pipe temperatures, and acquiring the first difference between the maximum pipe temperature and the minimum pipe temperature;

[0115] In step S203, in a case where the first difference is greater than the preset difference, condensation alarm information is generated, the condensation alarm information is used to indicate whether there is a refrigeration pipeline blockage, and in a case of blockage, dredging is performed to prevent condensation.

[0116] Optionally, after obtaining the first difference between the maximum temperature in the pipe and the minimum temperature in the pipe, the method further comprises: in a case where the first difference is less than or equal to the preset difference, obtaining a real-time running frequency of a compressor of the air conditioner; determining a frequency interval in which the real-time running frequency of the compressor is located, and determining a superheat degree corresponding to the frequency interval to prevent condensation.

[0117] Optionally, determining the superheat degree corresponding to the frequency interval comprises: obtaining a temperature average of a plurality of the temperatures in the pipe and a suction temperature of the air conditioner; obtaining a size of a second difference between the suction temperature of the air conditioner and the temperature average; and determining the corresponding superheat degree according to the frequency interval and the size of the second difference.

[0118] Optionally, determining the superheat degree corresponding to the frequency interval according to the frequency interval and the size of the second difference comprises: determining a preset upper limit value and a preset lower limit value according to the frequency interval; in a case where the second difference is greater than the preset upper limit value, increasing an opening degree of an expansion valve to adjust the opening degree of the expansion valve to a first preset opening degree; in a case where the second difference is less than the preset lower limit value, decreasing the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a second preset opening degree, and the first preset opening degree and the second preset opening degree corresponding to different frequency intervals are also different; and in a case where the second difference is greater than or equal to the preset lower limit value and less than or equal to the preset upper limit value, maintaining the opening degree of the expansion valve unchanged; wherein the opening degree of the expansion valve directly affects the superheat degree.

[0119] Optionally, determining the superheat degree corresponding to the frequency interval according to the frequency interval and the size of the second difference comprises: in a case where the frequency interval is a preset high-frequency interval and the second difference is within a preset difference range, determining whether an oil level of the compressor is higher than a warning oil level; in a case where the oil level of the compressor is higher than the warning oil level, maintaining the opening degree of the expansion valve unchanged; and in a case where the oil level of the compressor is not higher than the warning oil level, decreasing the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a third preset opening degree; wherein the opening degree of the expansion valve directly affects the superheat degree.

[0120] Optionally, after maintaining the opening degree of the expansion valve unchanged, the method further comprises: obtaining a real-time running frequency of the compressor, and again obtaining a plurality of the temperatures in the pipe and the suction temperature after obtaining the real-time running frequency of the compressor.

[0121] Optionally, the target time period is a time period starting from a time point at which the air conditioner starts to enter the refrigeration operation mode and ending at a time point at which the air conditioner is in stable operation, and the stable operation of the air conditioner indicates that a fluctuation of an operation frequency of a compressor of the air conditioner within a preset time is less than a preset fluctuation.

[0122] The embodiment of the present application provides a processor, which is used for running a program, wherein the program performs an anti-condensation control method of an air conditioner when running.

[0123] Specifically, the anti-condensation control method of the air conditioner comprises:

[0124] In step S201, the operation mode of the air conditioner is adjusted to the refrigeration operation mode, and after the air conditioner is operated in the refrigeration operation mode for a target time period, a plurality of pipe temperatures are obtained, the pipe temperature being a temperature of refrigerant in a finned tube of an indoor heat exchanger.

[0125] In step S202, a maximum pipe temperature and a minimum pipe temperature in the plurality of pipe temperatures are obtained, and a first difference between the maximum pipe temperature and the minimum pipe temperature is obtained.

[0126] In step S203, in a case where the first difference is greater than a preset difference, a condensation alarm information is generated, the condensation alarm information being used for indicating whether there is a refrigeration pipeline blockage, and in a case where there is the blockage, the blockage is dredged to prevent condensation.

[0127] Optionally, after the first difference between the maximum pipe temperature and the minimum pipe temperature is obtained, the method further comprises: in a case where the first difference is less than or equal to the preset difference, obtaining a real-time operation frequency of a compressor of the air conditioner; determining a frequency interval in which the real-time operation frequency of the compressor is located, and determining a superheat corresponding to the frequency interval to prevent condensation.

[0128] Optionally, the determination of the superheat corresponding to the frequency interval comprises: obtaining a temperature average of the plurality of pipe temperatures and a suction temperature of the air conditioner; obtaining a size of a second difference between the suction temperature of the air conditioner and the temperature average; and determining the corresponding superheat according to the frequency interval and the size of the second difference.

[0129] Optionally, determining the corresponding overheat degree according to the frequency interval and the size of the second difference value comprises: determining a preset upper limit value and a preset lower limit value according to the frequency interval; in a case where the second difference value is greater than the preset upper limit value, increasing the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a first preset opening degree; in a case where the second difference value is less than the preset lower limit value, reducing the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a second preset opening degree, and the first preset opening degree and the second preset opening degree corresponding to different frequency intervals are also different; in a case where the second difference value is greater than or equal to the preset lower limit value and less than or equal to the preset upper limit value, maintaining the opening degree of the expansion valve unchanged; wherein the opening degree of the expansion valve directly affects the overheat degree.

[0130] Optionally, determining the corresponding overheat degree according to the frequency interval and the size of the second difference value comprises: in a case where the frequency interval is a preset high frequency interval and the second difference value is within a preset difference value range, determining whether the oil level of the compressor is higher than a warning oil level; in a case where the oil level of the compressor is higher than the warning oil level, maintaining the opening degree of the expansion valve unchanged; in a case where the oil level of the compressor is not higher than the warning oil level, reducing the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a third preset opening degree; wherein the opening degree of the expansion valve directly affects the overheat degree.

[0131] Optionally, after maintaining the opening degree of the expansion valve unchanged, the method further comprises: acquiring the real-time running frequency of the compressor, and again acquiring the multiple tube temperatures and the suction temperature after acquiring the real-time running frequency of the compressor.

[0132] Optionally, the target time period is a time period starting from the time when the air conditioner starts to enter the refrigeration running mode and ending at the time when the air conditioner is stably running, and the air conditioner stably running indicates that the fluctuation of the running frequency of the compressor of the air conditioner within a preset time is less than a preset fluctuation.

[0133] Embodiments of the present application provide a device, which comprises a processor, a memory, and a program stored on the memory and executable on the processor, and the processor implements the steps of the anti-condensation control method of the air conditioner when executing the program. The device herein can be a server, a PC, a PAD, a mobile phone, etc.

[0134] The anti-condensation control method of the air conditioner also provides a computer program product, which, when executed on a data processing device, is adapted to execute a program initialized with at least the following method steps.

[0135] Specifically, the anti-condensation control method of the air conditioner comprises:

[0136] Step S201, adjust the operation mode of the air conditioner to the refrigeration operation mode, and obtain a plurality of tube temperatures after the target time period of the refrigeration operation mode, the tube temperature being the temperature of the refrigerant in the indoor heat exchanger finned tube;

[0137] Step S202, obtain the maximum tube temperature and the minimum tube temperature in the plurality of tube temperatures, and obtain the first difference value of the maximum tube temperature and the minimum tube temperature;

[0138] Step S203, in the case where the first difference value is greater than the preset difference value, generate a condensation alarm information, the condensation alarm information being used to indicate whether there is a refrigerant pipeline blockage, and in the case of blockage, carry out dredging to prevent condensation.

[0139] Optionally, after obtaining the first difference value of the maximum tube temperature and the minimum tube temperature, the method further comprises: in the case where the first difference value is less than or equal to the preset difference value, obtaining the real-time operating frequency of the compressor of the air conditioner; determining the frequency interval in which the real-time operating frequency of the compressor is located, and determining the superheat degree corresponding to the frequency interval for preventing condensation.

[0140] Optionally, determining the superheat degree corresponding to the frequency interval comprises: obtaining the temperature average of the plurality of tube temperatures and the suction temperature of the air conditioner; obtaining the size of the second difference value between the suction temperature of the air conditioner and the temperature average; determining the corresponding superheat degree according to the frequency interval and the size of the second difference value.

[0141] Optionally, determining the corresponding superheat degree according to the frequency interval and the size of the second difference value comprises: determining a preset upper limit value and a preset lower limit value according to the frequency interval; in the case where the second difference value is greater than the preset upper limit value, increasing the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a first preset opening degree; in the case where the second difference value is less than the preset lower limit value, reducing the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a second preset opening degree, and the first preset opening degree and the second preset opening degree corresponding to different frequency intervals are also different; in the case where the second difference value is greater than or equal to the preset lower limit value and less than or equal to the preset upper limit value, maintaining the opening degree of the expansion valve unchanged; wherein the opening degree of the expansion valve directly affects the superheat degree.

[0142] Optionally, the determining the corresponding overheat degree according to the frequency interval and the size of the second difference value comprises: in a case that the frequency interval is a preset high frequency interval and the second difference value is within a preset difference value range, determining whether the oil level of the compressor is higher than a warning oil level; in a case that the oil level of the compressor is higher than the warning oil level, maintaining the opening degree of the expansion valve unchanged; in a case that the oil level of the compressor is not higher than the warning oil level, reducing the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a third preset opening degree; wherein the opening degree of the expansion valve directly affects the overheat degree.

[0143] Optionally, after maintaining the opening degree of the expansion valve unchanged, the method further comprises: acquiring a real-time running frequency of the compressor, and after acquiring the real-time running frequency of the compressor, acquiring the temperature in the plurality of pipes and the suction temperature again.

[0144] Optionally, the target time period is a time period starting from a time point at which the air conditioner starts to enter the refrigeration running mode and ending at a time point at which the air conditioner is stably running, and the air conditioner stably running indicates that a running frequency fluctuation of a compressor of the air conditioner within a preset time is less than a preset fluctuation.

[0145] Obviously, those skilled in the art should understand that the modules or steps of the present application described above can be realized by general computing devices, which can be concentrated on a single computing device or distributed on a network composed of multiple computing devices, and can be realized by program codes executable by the computing devices, so that they can be stored in storage devices and executed by the computing devices, and in some cases, the steps shown or described can be executed in different order, or they can be manufactured into individual integrated circuit modules or multiple modules or steps into a single integrated circuit module. Therefore, the present application is not limited to any specific combination of hardware and software.

[0146] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can be in the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can be in the form of a computer program product implemented on one or more computer usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.

[0147] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or combination thereof. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or combination thereof.

[0148] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or combination thereof. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or combination thereof.

[0149] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or combination thereof. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or combination thereof.

[0150] In one typical configuration, the computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0151] The memory can include non-persistent memory and / or volatile memory, such as a random access memory (RAM) including a cache area for the temporary storage of data. The memory can also include non-volatile memory, such as read only memory (ROM), electrically programmable read only memory (EPROM), or electrically erasable programmable read only memory (EEPROM), for the storage of software that is read during runtime. The memory is an example of computer readable media.

[0152] Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible to computing devices. According to the definition herein, computer-readable media does not include transitory media such as modulated data signals and carriers.

[0153] It should also be noted that the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed or inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0154] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0155] 1) The anti-condensation control method of the air conditioner of the present application adjusts the operation mode of the air conditioner to the refrigeration operation mode, and obtains a plurality of pipe temperatures after the refrigeration operation mode runs for a target time period. The maximum pipe temperature and the minimum pipe temperature among the plurality of pipe temperatures are obtained, and the first difference between the maximum pipe temperature and the minimum pipe temperature is obtained. In the case where the first difference is greater than a preset difference, a condensation alarm information is generated, which is used to indicate whether there is a refrigeration pipeline blockage, and in the case of blockage, dredging is performed to prevent condensation. That is, according to the difference between the maximum value and the minimum value of the plurality of pipe temperatures, the risk of condensation is judged, and in the case of risk of condensation, the refrigeration pipeline is detected in time to prevent condensation due to refrigeration pipeline blockage.

[0156] 2) The anti-condensation control device of the air conditioner of the present application adjusts the operation mode of the air conditioner to the refrigeration operation mode through the processing unit, and obtains a plurality of pipe temperatures after the refrigeration operation mode runs for a target time period; the first obtaining unit obtains the maximum pipe temperature and the minimum pipe temperature among the plurality of pipe temperatures, and obtains the first difference value of the maximum pipe temperature and the minimum pipe temperature; the anti-condensation unit generates a condensation alarm information in the case that the first difference value is greater than a preset difference value, the condensation alarm information is used to indicate whether there is a refrigeration pipeline blockage, and in the case of blockage, dredging is performed to prevent condensation. That is, according to the difference between the maximum value and the minimum value of the plurality of pipe temperatures, the risk of condensation is judged, in the case that there is a risk of condensation, the refrigeration pipeline is detected in time to prevent condensation due to refrigeration pipeline blockage.

[0157] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A control method for preventing condensation of an air conditioner, characterized by, The method comprises: adjusting the operation mode of an air conditioner to a refrigeration operation mode, and obtaining a plurality of pipe temperatures of refrigerant in the indoor heat exchanger finned tube after the air conditioner operates in the refrigeration operation mode for a target time period; obtaining a maximum pipe temperature and a minimum pipe temperature from the plurality of pipe temperatures, and obtaining a first difference between the maximum pipe temperature and the minimum pipe temperature; generating a condensation warning information when the first difference is greater than a preset difference, the condensation warning information being used to indicate whether there is a refrigerant pipe blockage, and performing dredging to prevent condensation when there is a blockage; when the first difference is less than or equal to the preset difference, obtaining a real-time operating frequency of a compressor of the air conditioner, determining a frequency interval in which the real-time operating frequency of the compressor is located; obtaining a temperature average of the plurality of pipe temperatures and a suction temperature of the air conditioner, and obtaining a second difference between the suction temperature of the air conditioner and the temperature average; determining a corresponding superheat degree according to the frequency interval and the size of the second difference to prevent condensation; determining the corresponding superheat degree according to the frequency interval and the size of the second difference, comprising: determining a preset upper limit value and a preset lower limit value according to the frequency interval; when the second difference is greater than the preset upper limit value, increasing the opening degree of an expansion valve to adjust the opening degree of the expansion valve to a first preset opening degree; when the second difference is less than the preset lower limit value, decreasing the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a second preset opening degree, and the first preset opening degree and the second preset opening degree corresponding to different frequency intervals are also different; when the second difference is greater than or equal to the preset lower limit value and less than or equal to the preset upper limit value, maintaining the opening degree of the expansion valve unchanged; wherein the opening degree of the expansion valve directly affects the superheat degree.

2. The method of claim 1, wherein, determining the corresponding superheat degree according to the frequency interval and the size of the second difference, comprising: when the frequency interval is a preset high frequency interval and the second difference is within a preset difference range, determining whether the oil level of the compressor is higher than a warning oil level; when the oil level of the compressor is higher than the warning oil level, maintaining the opening degree of the expansion valve unchanged; when the oil level of the compressor is not higher than the warning oil level, decreasing the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a third preset opening degree; wherein the opening degree of the expansion valve directly affects the superheat degree.

3. The method according to claim 1 or 2, characterized in that, After maintaining the opening degree of the expansion valve unchanged, the method further comprises: obtaining the real-time operating frequency of the compressor, and again obtaining the plurality of pipe temperatures and the suction temperature after obtaining the real-time operating frequency of the compressor.

4. The method of claim 1, wherein, The target time period is a time period starting from the time when the air conditioner starts to enter the refrigeration operation mode and ending at the time when the air conditioner operates stably, and the stable operation of the air conditioner indicates that the fluctuation of the operating frequency of the compressor of the air conditioner within a preset time is less than a preset fluctuation.

5. An anti-condensation control device for an air conditioner, characterized in that, The method comprises: The processing unit is configured to adjust the operation mode of the air conditioner to a refrigeration operation mode, and obtain a plurality of pipe temperatures of refrigerant in the indoor heat exchanger finned tube after the air conditioner operates in the refrigeration operation mode for a target time period. The first obtaining unit is configured to obtain a maximum pipe temperature and a minimum pipe temperature from the plurality of pipe temperatures, and obtain a first difference between the maximum pipe temperature and the minimum pipe temperature. The anti-condensation unit is configured to generate a condensation warning information when the first difference is greater than a preset difference, the condensation warning information being used to indicate whether there is a refrigerant pipeline blockage, and to perform dredging to prevent condensation when there is a blockage. The second obtaining unit is configured to obtain a real-time operating frequency of a compressor of the air conditioner when the first difference is less than or equal to the preset difference after obtaining the first difference between the maximum pipe temperature and the minimum pipe temperature. The determining unit includes a first obtaining module, a second obtaining module, and a determining module. The first obtaining module is configured to obtain a temperature average of the plurality of pipe temperatures and a suction temperature of the air conditioner. The second obtaining module is configured to obtain a second difference between the suction temperature of the air conditioner and the temperature average. The determining module is configured to determine a corresponding superheat degree according to the frequency interval and the second difference to prevent condensation. The determining module includes a first determining submodule, a first adjusting submodule, a second adjusting submodule, and a third adjusting submodule. The first determining submodule is configured to determine a preset upper limit value and a preset lower limit value according to the frequency interval.

6. A computer-readable storage medium, characterized in that, The first adjusting submodule is configured to increase an opening degree of an expansion valve to adjust the opening degree of the expansion valve to a first preset opening degree when the second difference is greater than the preset upper limit value.

7. An electronic device, comprising: The second adjusting submodule is configured to decrease the opening degree of the expansion valve to adjust the opening degree of the expansion valve to a second preset opening degree when the second difference is less than the preset lower limit value. The third adjusting submodule is configured to maintain the opening degree of the expansion valve unchanged when the second difference is greater than or equal to the preset lower limit value and less than or equal to the preset upper limit value. The opening degree of the expansion valve directly affects the superheat degree. The computer-readable storage medium includes a stored program, wherein the program controls the device where the computer-readable storage medium is located to perform the anti-condensation control method of the air conditioner according to any one of claims 1 to 4 when the program is executed. The computer-readable storage medium includes a stored program, wherein the program controls the device where the computer-readable storage medium is located to perform the anti-condensation control method of the air conditioner according to any one of claims 1 to 4 when the program is executed. The computer-readable storage medium includes a stored program, wherein the program controls the device where the computer-readable storage medium is located to perform the anti-condensation control method of the air conditioner according to any one of claims 1 to 4 when the program is executed. The computer-readable storage medium includes a stored program, wherein the program controls the device where the computer-readable storage medium is located to perform the anti-condensation control method of the air conditioner according to any one of claims 1 to 4 when the program is executed.

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