Air conditioner evacuation detection method and device, electronic equipment and storage medium

Abstract

The application relates to the technical field of air conditioners, and particularly provides an air-conditioning evacuation detection method, which aims to solve the problem that air-conditioning explosion is caused by air-conditioning non-evacuation. To achieve the purpose, the air-conditioning evacuation detection method comprises the following steps: predicting the upper limit value and the lower limit value of the current of a compressor of an air conditioner and the safety temperature of an evaporator of an air-conditioning indoor unit after the air conditioner is operated for a preset time length after receiving an evacuation detection instruction; obtaining the actual value of the current of the compressor and the actual temperature of the evaporator after the air conditioner is operated for the preset time length; comparing the actual value, the upper limit value and the lower limit value of the current of the compressor; if the actual value is between the lower limit value and the upper limit value, it is determined that the air conditioner has been evacuated; if the actual value is greater than the upper limit value, it is determined whether the actual temperature of the evaporator is less than or equal to the safety temperature; if yes, it is determined that the air conditioner has been evacuated; and if no, it is determined that the air conditioner has a non-evacuation fault. Through the method, whether the air conditioner has been evacuated can be accurately detected, and the explosion risk can be avoided.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and specifically provides a method, apparatus, control device, and computer-readable storage medium for detecting the evacuation of an air conditioner. Background Technology

[0002] As people's living standards improve, air conditioners have become an indispensable household appliance. Therefore, the safety of air conditioners during use is of paramount importance.

[0003] In the current air conditioning production process, air is generally evacuated to a certain pressure directly. However, during the production of the outdoor unit, due to factors such as pressure gauge error, valve sealing, and employee operation, problems such as long evacuation time and incomplete evacuation are prone to occur. It is impossible to guarantee that the outdoor unit will be evacuated to the required pressure during mass production, that is, the vacuum degree of the outdoor unit cannot be guaranteed. This can easily lead to air mixing into the outdoor unit, which may cause the air conditioner to explode or affect its performance.

[0004] Accordingly, there is a need in the field for a new air evacuation detection solution for air conditioners to address the aforementioned problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects, the present invention is proposed to provide an air evacuation detection method, apparatus, electronic device and storage medium for air conditioners that solve or at least partially solve the technical problem that air conditioners are prone to explosion when they are not evacuated.

[0006] In a first aspect, the present invention provides a method for detecting air evacuation in an air conditioner. The method includes: responding to a received air evacuation detection command, predicting, based on the air conditioner's operating mode, the upper and lower limits of the compressor current and the safe temperature of the evaporator of the indoor unit of the air conditioner after a preset operating time; obtaining the actual value of the compressor current and the actual temperature of the evaporator after the preset operating time; comparing the actual value, upper limit, and lower limit of the compressor current; if the actual value is between the lower limit and the upper limit, determining that the air conditioner has been evacuated; if the actual value is greater than the upper limit, determining whether the actual temperature of the evaporator is less than or equal to the safe temperature; if yes, determining that the air conditioner has been evacuated; if no, determining that the air conditioner has experienced an air evacuation failure.

[0007] In one technical solution of the above-mentioned air conditioning evacuation detection method, after the step of "comparing the actual value, upper limit value and lower limit value of the compressor current", the detection method further includes: if the actual value is less than the lower limit value, it is determined that the air conditioner has a refrigerant shortage fault.

[0008] In one technical solution of the above-mentioned air conditioning evacuation detection method, the step of "predicting the upper and lower limits of the compressor current of the air conditioner after a preset operating time based on the air conditioner's operating mode" specifically includes: predicting the compressor current value of the air conditioner after a preset operating time based on the air conditioner's operating mode; and calculating the upper and lower limits of the compressor current of the air conditioner after the preset operating time based on the current value and using the following formulas:

[0009] C = C1(1+k1)

[0010] Wherein, C represents the upper limit value or the lower limit value, and k1 represents a preset constant coefficient; when C represents the upper limit value, k1>0, and when C represents the lower limit value, k1<0.

[0011] In one technical solution of the above-mentioned air evacuation detection method for air conditioners, k1 = ±0.1.

[0012] In one technical solution of the above-mentioned air conditioning evacuation detection method, the step of "predicting the safe temperature of the evaporator of the indoor unit of the air conditioner after the air conditioner has been running for a preset period of time according to the air conditioner's operating mode" specifically includes: obtaining the initial temperature of the evaporator of the indoor unit of the air conditioner before the air conditioner has been running for a preset period of time; predicting the indoor ambient temperature of the air conditioner after the air conditioner has been running for a preset period of time according to the air conditioner's operating mode; and determining the safe temperature of the evaporator of the indoor unit of the air conditioner after the air conditioner has been running for a preset period of time according to the absolute value of the temperature difference between the initial temperature and the indoor ambient temperature and the initial temperature of the evaporator.

[0013] In one technical solution of the above-mentioned air conditioning evacuation detection method, the step of "determining the safe temperature of the evaporator of the indoor unit of the air conditioner after a preset operating time based on the absolute value of the temperature difference between the initial temperature and the indoor ambient temperature and the initial temperature of the evaporator" specifically includes: determining the safe temperature of the evaporator of the indoor unit of the air conditioner after a preset operating time based on the temperature difference and the initial temperature using the following formula:

[0014] T = t1 + k2 × Δt

[0015] Where T represents the safe temperature of the evaporator, t1 represents the initial temperature, Δt represents the absolute value of the temperature difference between the initial temperature and the indoor ambient temperature, and k2 represents a preset constant coefficient.

[0016] In one technical solution of the above-mentioned air conditioning evacuation detection method, after determining that the air conditioner has evacuation failure or refrigerant shortage failure, the detection method further includes: outputting warning information through the air conditioner's human-machine interaction device and / or sending warning information to a mobile device that is communicatively connected to the air conditioner.

[0017] In a second aspect, the present invention provides an air evacuation detection device for an air conditioner, the device comprising: a prediction module configured to, in response to a received air evacuation detection command, predict, based on the air conditioner's operating mode, an upper limit and a lower limit of the compressor current of the air conditioner and a safe temperature of the evaporator of the indoor unit of the air conditioner after the air conditioner has been running for a preset period of time; an acquisition module configured to acquire, after the air conditioner has been running for a preset period of time, the actual value of the compressor current and the actual temperature of the evaporator; a comparison module configured to compare the actual value, the upper limit, and the lower limit of the compressor current; and a determination module configured to, if the actual value is between the lower limit and the upper limit, determine that the air conditioner has been evacuated; if the actual value is less than the lower limit, determine that the air conditioner has a refrigerant shortage fault; if the actual value is greater than the upper limit, determine whether the actual temperature of the evaporator is less than or equal to the safe temperature; if yes, determine that the air conditioner has been evacuated; if no, determine that the air conditioner has not been evacuated.

[0018] In a third aspect, an electronic device is provided, comprising a processor and a storage device, the storage device being adapted to store a plurality of program codes, the program codes being adapted to be loaded and executed by the processor to perform the air evacuation detection method for an air conditioner as described in any of the above-described technical solutions.

[0019] In a fourth aspect, a computer-readable storage medium is provided, wherein a plurality of program codes are stored therein, the program codes being adapted to be loaded and run by a processor to perform the air evacuation detection method for an air conditioner as described in any of the above-described technical solutions.

[0020] The above-described technical solutions of the present invention have at least one or more of the following beneficial effects:

[0021] In implementing the technical solution of this invention, after receiving the evacuation detection command, by predicting the upper and lower limits of the compressor current and the safe temperature of the evaporator of the indoor unit of the air conditioner after a preset running time based on the air conditioner's operating mode, the current boundary values ​​and temperature boundary values ​​for determining whether the air conditioner has been evacuated can be accurately obtained, effectively improving the accuracy of determining whether the air conditioner has been evacuated. By obtaining the actual value of the compressor current and the actual temperature of the evaporator after a preset running time and comparing the actual value, upper limit, and lower limit of the compressor current, if the actual value is between the lower limit and the upper limit, it is determined that the air conditioner has been evacuated, which can accurately determine whether the air conditioner has been evacuated. This system promptly identifies when the air conditioner has been evacuated, effectively improving the timeliness of evacuation detection. Furthermore, when the actual temperature exceeds the upper limit, it checks if the evaporator's actual temperature is less than or equal to the safe temperature. If the actual temperature is less than or equal to the safe temperature, the air conditioner is considered evacuated; if the actual temperature exceeds the safe temperature, it is considered not evacuated. This multi-dimensional detection significantly improves the accuracy of evacuation detection, substantially reducing the risk of air conditioner explosions due to not evacuating, further enhancing user safety and improving the user experience. Attached Figure Description

[0022] The disclosure of this invention will become more readily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. Furthermore, similar numbers in the drawings are used to denote similar components, wherein:

[0023] Figure 1 This is a schematic flowchart of the main steps of an air conditioning evacuation detection method according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic flowchart of the main steps of an air conditioning evacuation detection method according to another embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the main structure of an air-conditioning evacuation detection device according to an embodiment of the present invention;

[0026] List of reference numerals :

[0027] 11: Prediction module; 12: Acquisition module; 13: Comparison module; 14: Judgment module. Detailed Implementation

[0028] Some embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0029] In the description of this invention, "module" and "processor" can include hardware, software, or a combination of both. A module can include hardware circuitry, various suitable sensors, communication ports, memory, and may also include software components, such as program code, or a combination of software and hardware. A processor can be a central processing unit, a microprocessor, a digital signal processor, or any other suitable processor. The processor has data and / or signal processing capabilities. The processor can be implemented in software, in hardware, or a combination of both. Non-transitory computer-readable storage media include any suitable medium capable of storing program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, etc. The term "A and / or B" means all possible combinations of A and B, such as only A, only B, or A and B. The terms "at least one A or B" or "at least one of A and B" have a similar meaning to "A and / or B" and can include only A, only B, or A and B. The singular terms "a" or "this" can also include plural forms.

[0030] See appendix Figure 1 , Figure 1 This is a schematic flowchart illustrating the main steps of an air conditioning evacuation detection method according to an embodiment of the present invention. Figure 1 As shown, the air evacuation detection method of the air conditioner in this embodiment of the invention mainly includes the following steps S101-S107.

[0031] Step S101: In response to the received evacuation detection command, predict the upper and lower limits of the compressor current and the safe temperature of the evaporator of the air conditioner indoor unit after the air conditioner has been running for a preset period of time, based on the air conditioner's operating mode.

[0032] In this embodiment, the operating mode of the air conditioner may include, but is not limited to, cooling mode, heating mode, dehumidification mode, and ventilation mode.

[0033] The preset duration is used to predict the upper and lower limits of the current generated by the air conditioner's compressor and the safe operating temperature of the evaporator of the indoor unit during operation. The preset duration can be a duration obtained by those skilled in the art based on experimental data, or a duration obtained by those skilled in the art by adjusting a set duration according to actual needs. This embodiment of the invention does not impose any limitations on this.

[0034] The upper and lower limits of the compressor current are the maximum and minimum boundary values ​​used to determine whether the air conditioner has evacuated.

[0035] The safe temperature of the evaporator is the boundary temperature used to determine whether the evaporator has been evacuated.

[0036] In one implementation, after receiving the evacuation detection command, the compressor current value of the air conditioner can be predicted according to the air conditioner's operating mode after a preset running time. A constant coefficient is preset to calculate the upper and lower limits of the compressor current. When calculating the upper limit of the compressor current, the preset constant coefficient is greater than zero, and the sum of the compressor current value and the product of the compressor current value and the constant coefficient is used as the upper limit of the compressor current. When calculating the lower limit of the compressor current, the preset constant coefficient is less than zero, and the sum of the compressor current value and the product of the compressor current value and the constant coefficient is used as the lower limit of the compressor current. For example, if the constant coefficient for calculating the upper and lower limits of the compressor current is set to 0.1, and the preset duration is 15 minutes, and the predicted current value of the air conditioner compressor after 15 minutes of operation is 4A, then the upper limit of the compressor current = compressor current value + (compressor current value × constant coefficient) = 4 + (4 × 0.1) = 4.4A; the lower limit of the compressor current = compressor current value + (compressor current value × constant coefficient) = 4 + (4 × -0.1) = 4 - 0.4 = 3.4A.

[0037] Furthermore, a temperature sensor can be installed in the air conditioner. After receiving the evacuation detection command, the temperature sensor can predict the safe temperature of the evaporator of the indoor unit of the air conditioner after the air conditioner has been running for a preset period of time.

[0038] It should be noted that the constant coefficients in the above embodiments are preset values ​​used to calculate the upper and lower limits of the compressor current. The constant coefficients can be values ​​obtained by those skilled in the art based on experimental data, or values ​​obtained by those skilled in the art after adjusting the preset values ​​according to actual needs. The embodiments of the present invention do not impose any limitations on this.

[0039] A temperature sensor is a sensor that can sense temperature and convert it into a usable output signal.

[0040] Step S102: Obtain the actual value of the compressor current and the actual temperature of the evaporator after the air conditioner has been running for a preset time.

[0041] In one embodiment, the actual value of the compressor current can be detected using tools such as a multimeter and a megohmmeter, but not limited to these. It should be noted that detecting the compressor current value using a multimeter, megohmmeter, or similar tools is a conventional technique in the art, and this embodiment of the invention will not elaborate on it in detail.

[0042] Furthermore, a timer and a temperature sensor can be installed in the air conditioner. The timer is used to record the running time of the air conditioner, and the temperature sensor records the temperature of the evaporator. When the running time recorded by the timer reaches the preset duration, the temperature recorded by the temperature sensor is used as the actual temperature of the evaporator.

[0043] Step S103: Determine whether the actual value is between the lower limit and the upper limit. If yes, proceed to step S104; otherwise, proceed to step S105.

[0044] Step S104: Determine that the air conditioner has been evacuated.

[0045] Step S105: Determine whether the actual value is greater than the upper limit value. If yes, proceed to step S106; otherwise, end the detection method.

[0046] Step S106: Determine whether the actual temperature of the evaporator is less than or equal to the safe temperature. If yes, proceed to step S104; otherwise, proceed to step S107.

[0047] Step S107: Determined to be an air conditioning malfunction due to insufficient evacuation.

[0048] In one embodiment of steps S103 to S107, the actual value of the compressor current is compared with the upper and lower limits of the compressor current. If the actual value is between the lower and upper limits, it is determined that the air conditioner has evacuated. If the actual value is greater than the upper limit, the actual temperature of the evaporator is compared with the safe temperature. If the actual temperature is less than the safe temperature, it is determined that the air conditioner has evacuated. If the actual temperature is greater than or equal to the safe temperature, it is determined that the air conditioner has evacuated.

[0049] Based on steps S101-S107 above, upon receiving the evacuation detection command, by predicting the upper and lower limits of the compressor current and the safe temperature of the evaporator of the indoor unit after a preset running time according to the air conditioner's operating mode, the current and temperature boundary values ​​for determining whether the air conditioner has been evacuated can be accurately obtained, effectively improving the accuracy of determining whether the air conditioner has been evacuated. By obtaining the actual value of the compressor current and the actual temperature of the evaporator after a preset running time and comparing the actual, upper, and lower limits of the compressor current, if the actual value is between the lower and upper limits, it is determined that the air conditioner has been evacuated. Accurately and promptly determining whether the air conditioner has been evacuated effectively improves the timeliness of evacuation detection. Furthermore, when the actual temperature exceeds the upper limit, it determines whether the actual evacuation temperature is less than or equal to the safe temperature. If the actual temperature is less than or equal to the safe temperature, it is determined that the air conditioner has been evacuated; if the actual temperature exceeds the safe temperature, it is determined that the air conditioner has not evacuated. This multi-dimensional detection of whether the air conditioner has been evacuated greatly improves the accuracy of evacuation detection, significantly avoids the risk of air conditioner explosion due to non-evacuation malfunctions, further enhances user safety during air conditioner use, and improves the user experience.

[0050] See appendix Figure 2 , Figure 2 This is a schematic flowchart of the main steps of an air conditioning evacuation detection method according to another embodiment of the present invention. Figure 2 As shown, the air evacuation detection method of the air conditioner in this embodiment of the invention mainly includes the following steps S2100-S2900.

[0051] Step S2100: Predict the current value of the air conditioner compressor after the air conditioner has been running for a preset period of time, based on the air conditioner's operating mode.

[0052] In this embodiment, the prediction method for predicting the compressor current value of the air conditioner after a preset running time based on the air conditioner's operating mode is the same as the prediction method in step S101 above, and will not be repeated here.

[0053] Step S2101: Calculate the upper and lower limits of the compressor current of the air conditioner after the preset running time based on the current value.

[0054] In one implementation, the upper and lower limits of the compressor current of the air conditioner after a preset running time can be calculated based on the current value using the following formula:

[0055] C = C1(1+k1)

[0056] Wherein, C represents the upper limit or the lower limit, and k1 represents a preset constant coefficient; when C represents the upper limit, k1>0, and when C represents the lower limit, k1<0.

[0057] It should be noted that the constant coefficient k1 is a pre-set value used to calculate the upper and lower limits of the compressor current. Preferably, the constant coefficient is equal to ±0.1. For example, when calculating the upper limit of the compressor current, k1 = 0.1; when calculating the lower limit of the compressor current, k1 = -0.1.

[0058] Step S2200: Obtain the initial temperature of the evaporator of the indoor unit of the air conditioner before the preset operating time of the air conditioner.

[0059] In this embodiment, the initial temperature of the evaporator of the indoor unit of the air conditioner can be obtained by a temperature sensor installed in the air conditioner.

[0060] Step S2201: Predict the indoor ambient temperature of the air conditioner after the air conditioner has been running for a preset time, based on the air conditioner's operating mode.

[0061] In this embodiment, the indoor ambient temperature of the air conditioner can be predicted based on experimental data after the air conditioner has been running for a preset period of time.

[0062] Step S2202: Determine the safe temperature of the evaporator of the indoor unit of the air conditioner after the air conditioner has been running for a preset period of time, based on the absolute value of the temperature difference between the initial temperature and the indoor ambient temperature and the initial temperature of the evaporator.

[0063] In this embodiment, the safe temperature of the indoor unit's evaporator after a preset operating time can be determined based on the absolute value of the temperature difference between the initial temperature and the indoor ambient temperature, and the initial temperature of the evaporator, using the following formula:

[0064] T = t1 + k2 × Δt

[0065] Where T represents the safe temperature of the evaporator, t1 represents the initial temperature, Δt represents the absolute value of the temperature difference between the initial temperature and the indoor ambient temperature, and k2 represents the preset constant coefficient.

[0066] It should be noted that the constant coefficient k2 is a pre-set value used to calculate the safe temperature of the evaporator. The constant coefficient k2 can be any value in the range of 0.5-1.5. Preferably, in this embodiment of the invention, the constant coefficient k2 = 1.

[0067] Step S2300: Obtain the actual value of the compressor current and the actual temperature of the evaporator after the air conditioner has been running for a preset time.

[0068] In this embodiment, the method for obtaining the actual value of the compressor current and the actual temperature of the evaporator after the air conditioner has been running for a preset time is the same as the method in step S102 above, and will not be repeated here.

[0069] Step S2400: Determine whether the actual value is between the lower limit and the upper limit. If yes, proceed to step S2500; if the actual value is greater than the upper limit, proceed to step S2600; if the actual value is less than the lower limit, proceed to step S2800.

[0070] Step S2500: It is determined that the air conditioner has been evacuated.

[0071] Step S2600: Determine whether the actual temperature of the evaporator is less than or equal to the safe temperature. If yes, proceed to step S2500; otherwise, proceed to step S2700.

[0072] Step S2700: Determine that the air conditioner has a failure to evacuate air, and proceed to step S2900.

[0073] Step S2800: Determine that the air conditioner has a refrigerant shortage fault, and proceed to step S2900.

[0074] In one embodiment of steps S2400 to S2800, the actual value of the compressor current is compared with the upper and lower limits of the compressor current. If the actual value is between the lower and upper limits, it is determined that the air conditioner has evacuated. If the actual value is greater than the upper limit, the actual temperature of the evaporator is compared with the safe temperature. If the actual temperature is less than the safe temperature, it is determined that the air conditioner has evacuated. If the actual temperature is greater than or equal to the safe temperature, it is determined that the air conditioner has evacuated. If the actual value is less than the lower limit, it is determined that the air conditioner has a refrigerant shortage fault.

[0075] Step S2900: Output warning information through the air conditioner's human-machine interface and / or send warning information to a mobile device that is connected to the air conditioner.

[0076] In this embodiment, after determining that the air conditioner has a vacuuming failure or a refrigerant shortage failure, a warning message is output through the air conditioner's human-machine interface and / or sent to a mobile device that is connected to the air conditioner.

[0077] It should be noted that although the steps in the above embodiments are described in a specific order, those skilled in the art will understand that in order to achieve the effects of the present invention, different steps do not necessarily have to be executed in such an order. They can be executed simultaneously (in parallel) or in other orders, and these variations are all within the scope of protection of the present invention.

[0078] Furthermore, the present invention also provides an air evacuation detection device for an air conditioner.

[0079] See appendix Figure 3 , Figure 3 This is a main structural block diagram of an air conditioning evacuation detection device according to an embodiment of the present invention. Figure 3 As shown, the air evacuation detection device for an air conditioner in this embodiment of the invention mainly includes a prediction module 11, an acquisition module 12, a comparison module 13, and a determination module 14. In some embodiments, one or more of the prediction module 11, acquisition module 12, comparison module 13, and determination module 14 can be combined into a single module. In some embodiments, the prediction module 11 can be configured to, in response to a received evacuation detection command, predict the upper and lower limits of the compressor current and the safe temperature of the evaporator of the indoor unit of the air conditioner after a preset operating time, based on the air conditioner's operating mode. The acquisition module 12 can be configured to acquire the actual value of the compressor current and the actual temperature of the evaporator after a preset operating time. The comparison module 13 can be configured to compare the actual value, upper limit, and lower limit of the compressor current. The determination module 14 can be configured to determine that the air conditioner has evacuated if the actual value is between the lower and upper limits; determine that the air conditioner has a refrigerant shortage fault if the actual value is less than the lower limit; determine that the actual value is greater than the upper limit if the actual value is less than or equal to the safe temperature of the evaporator; if yes, determine that the air conditioner has evacuated; otherwise, determine that the air conditioner has not evacuated. In one embodiment, a description of the specific functions can be found in steps S101 to S107.

[0080] The aforementioned air conditioning evacuation detection device is used for performing... Figure 1 The air evacuation detection method embodiments shown are similar in technical principle, the technical problems solved, and the technical effects produced. Those skilled in the art can clearly understand that, for the sake of convenience and brevity, the specific working process and related descriptions of the air evacuation detection device can be found in the embodiments of the air evacuation detection method, which will not be repeated here.

[0081] Those skilled in the art will understand that all or part of the processes in the method of the above embodiment of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form. The computer-readable storage medium can include any entity or device capable of carrying the computer program code, a medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory, a random access memory, an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc. It should be noted that the content included in the computer-readable storage medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable storage medium does not include electrical carrier signals and telecommunication signals.

[0082] Furthermore, the present invention also provides an electronic device. In one embodiment of the electronic device according to the present invention, the electronic device includes a processor and a storage device. The storage device can be configured to store a program for executing the air evacuation detection method of the air conditioner described in the above-described method embodiments. The processor can be configured to execute the program in the storage device, which includes, but is not limited to, the program for executing the air evacuation detection method of the air conditioner described in the above-described method embodiments. For ease of explanation, only the parts related to the embodiments of the present invention are shown. For specific technical details not disclosed, please refer to the method section of the embodiments of the present invention.

[0083] Furthermore, the present invention also provides a computer-readable storage medium. In one embodiment of the computer-readable storage medium according to the present invention, the computer-readable storage medium can be configured to store a program for performing the air evacuation detection method of an air conditioner according to the above-described method embodiments. This program can be loaded and run by a processor to implement the air evacuation detection method of the air conditioner. For ease of explanation, only the parts related to the embodiments of the present invention are shown; for specific technical details not disclosed, please refer to the method section of the embodiments of the present invention. The computer-readable storage medium can be a storage device comprising various electronic devices. Optionally, in the embodiments of the present invention, the computer-readable storage medium is a non-transitory computer-readable storage medium.

[0084] Furthermore, it should be understood that since the various modules are only provided to illustrate the functional units of the device of the present invention, the physical devices corresponding to these modules may be the processor itself, or a part of the processor's software, a part of its hardware, or a combination of software and hardware. Therefore, the number of modules shown in the figures is merely illustrative.

[0085] Those skilled in the art will understand that the various modules in the device can be adaptively split or combined. Such splitting or combining of specific modules will not cause the technical solution to deviate from the principles of the present invention; therefore, the technical solutions after splitting or combining will fall within the protection scope of the present invention.

[0086] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A method for detecting the evacuation of an air conditioner, characterized in that, The detection method includes: In response to the received evacuation detection command, the upper and lower limits of the compressor current of the air conditioner and the safe temperature of the evaporator of the indoor unit of the air conditioner are predicted according to the air conditioner's operating mode after the air conditioner has been running for a preset period of time. The actual current of the compressor and the actual temperature of the evaporator are obtained after the air conditioner has been running for a preset period of time. The actual, upper, and lower limits of the compressor's current are compared. If the actual value is between the lower limit and the upper limit, it is determined that the air conditioner has been evacuated. If the actual value is greater than the upper limit value, then determine whether the actual temperature of the evaporator is less than or equal to the safe temperature; If so, it is determined that the air conditioner has been evacuated; If not, it is determined that the air conditioner has a failure to evacuate air.

2. The air evacuation detection method for an air conditioner according to claim 1, characterized in that, Following the step of "comparing the actual value, upper limit value, and lower limit value of the compressor's current," the detection method further includes: If the actual value is less than the lower limit, it is determined that the air conditioner is experiencing a refrigerant shortage.

3. The air evacuation detection method for an air conditioner according to claim 1, characterized in that, The step of "predicting the upper and lower limits of the compressor current of the air conditioner after a preset running time based on the air conditioner's operating mode" specifically includes: Predict the current value of the air conditioner's compressor after a preset running time based on the air conditioner's operating mode; Based on the current value, calculate the upper and lower limits of the compressor current of the air conditioner after a preset running time using the following formulas: C = C1(1+k1) Wherein, C represents the upper limit value or the lower limit value, and k1 represents a preset constant coefficient; when C represents the upper limit value, k1>0, and when C represents the lower limit value, k1<0.

4. The air evacuation detection method for an air conditioner according to claim 3, characterized in that, The k1 = ±0.

1.

5. The air evacuation detection method for an air conditioner according to claim 1, characterized in that, The step of "predicting the safe temperature of the evaporator of the indoor unit of the air conditioner after a preset operating time based on the air conditioner's operating mode" specifically includes: Obtain the initial temperature of the evaporator of the indoor unit of the air conditioner before the preset operating time of the air conditioner; Predict the indoor ambient temperature of the air conditioner after it has been running for a preset period of time, based on the air conditioner's operating mode. The safe temperature of the evaporator of the indoor unit of the air conditioner is determined based on the absolute value of the temperature difference between the initial temperature and the indoor ambient temperature and the initial temperature of the evaporator.

6. The air evacuation detection method for an air conditioner according to claim 5, characterized in that, The step of "determining the safe temperature of the evaporator of the indoor unit of the air conditioner after the air conditioner has been running for a preset period of time based on the absolute value of the temperature difference between the initial temperature and the indoor ambient temperature and the initial temperature of the evaporator" specifically includes: The safe temperature of the evaporator of the indoor unit of the air conditioner after a preset operating time is determined based on the temperature difference and the initial temperature using the following formula: T = t1 + k2 × Δt Where T represents the safe temperature of the evaporator, t1 represents the initial temperature, Δt represents the absolute value of the temperature difference between the initial temperature and the indoor ambient temperature, and k2 represents a preset constant coefficient.

7. The air evacuation detection method for an air conditioner according to claim 1 or 2, characterized in that, After determining that the air conditioner has a vacuuming fault or a refrigerant shortage fault, the detection method further includes: The air conditioner's human-machine interface device outputs warning information and / or sends warning information to mobile devices that are communicatively connected to the air conditioner.

8. An air evacuation detection device for an air conditioner, characterized in that, The device includes: The prediction module is configured to, in response to a received evacuation detection command, predict the upper and lower limits of the compressor current of the air conditioner and the safe temperature of the evaporator of the indoor unit of the air conditioner after the air conditioner has been running for a preset period of time, based on the air conditioner's operating mode. The acquisition module is configured to acquire the actual value of the compressor current and the actual temperature of the evaporator after the air conditioner has been running for a preset period of time; A comparison module is configured to compare the actual value, upper limit value, and lower limit value of the current of the compressor; The determination module is configured to determine that the air conditioner has been evacuated if the actual value is between the lower limit and the upper limit; determine that the air conditioner has a refrigerant shortage fault if the actual value is less than the lower limit; determine whether the actual temperature of the evaporator is less than or equal to the safe temperature if the actual value is greater than the upper limit; if yes, determine that the air conditioner has been evacuated; if no, determine that the air conditioner has not been evacuated.

9. An electronic device comprising a processor and a storage device, said storage device being adapted to store a plurality of program codes, characterized in that, The program code is adapted to be loaded and run by the processor to perform the air evacuation detection method of the air conditioner according to any one of claims 1 to 7.

10. A computer-readable storage medium storing a plurality of program codes, characterized in that, The program code is adapted to be loaded and run by a processor to perform the air evacuation detection method for an air conditioner according to any one of claims 1 to 7.

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