Control methods and apparatus for air conditioners, air conditioners, storage media

Abstract

This application relates to the field of air conditioner technology, and discloses a control method for an air conditioner, comprising: acquiring the current operating condition and current current value of the air conditioner; determining the degree of refrigerant leakage based on the current operating condition and current current value; and controlling the air conditioner to execute a corresponding control program based on the degree of leakage. This method can reduce the hardware cost of refrigerant leakage self-detection. This application also discloses a control device for an air conditioner, an air conditioner, and a storage medium.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, and for example relates to a control method and device for an air conditioner, an air conditioner, and a storage medium. BACKGROUND

[0002] At present, during use of an air conditioner, refrigerant may be slowly lost. In the case of refrigerant loss, the refrigeration and / or heating effect of the air conditioner will be affected to a certain extent. In addition, in the case of large refrigerant loss, the air conditioner may malfunction, such as abnormal shutdown. Therefore, how to detect refrigerant loss or refrigerant leakage during operation of the air conditioner is a technical problem that needs to be solved at present.

[0003] A related art air conditioner refrigerant leakage detection method includes the following steps: S1: before the air conditioner is started, it is determined whether the compressor is malfunctioning; S2: if the compressor is in a normal state, the air conditioner is started and operated, so that the compressor is in a low-frequency operating state, and it is determined whether the air conditioner has refrigerant leakage by detecting changes in the current of the compressor; S3: if the refrigerant leakage of the air conditioner is pending, the operating state of the air conditioner is adjusted, so that the compressor is in a high-frequency operating state, and it is determined whether the air conditioner has refrigerant leakage by detecting changes in the current of the compressor; S4: if the refrigerant leakage of the air conditioner is pending, it is determined whether the air conditioner has refrigerant leakage by detecting changes in pressure at two different positions in the refrigerant loop; and S5: if the air conditioner has refrigerant leakage, the speed of refrigerant leakage is detected, the degree of refrigerant leakage is determined, and an alarm unit is started.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] The air conditioner refrigerant leakage detection method used in the related art needs to configure pressure sensors at two different positions in the refrigerant loop to detect the pressure values at the positions, thereby increasing the hardware cost of refrigerant leakage self-detection, in the case of pending refrigerant leakage. SUMMARY

[0006] The following presents a simplified summary of some aspects of the disclosed embodiments in order to provide a basic understanding of such embodiments. The summary is not an extensive overview of the embodiments described in detail in the following detailed description, and is not intended to identify key / critical elements of the embodiments or to delineate the scope of the embodiments. The sole purpose of the summary is to present some aspects of the embodiments in a simplified form as a prelude to the more detailed description that is presented later.

[0007] The embodiments of the present disclosure provide a control method and device for an air conditioner, an air conditioner, and a storage medium, to reduce the hardware cost of refrigerant leakage self-detection.

[0008] In some embodiments, the method comprises: obtaining a current working condition and a current current value of the air conditioner; determining a leakage degree of refrigerant according to the current working condition and the current current value; and controlling the air conditioner to execute a corresponding control program according to the leakage degree.

[0009] In some embodiments, the device comprises a processor and a memory storing program instructions, wherein the processor is configured to execute the control method for an air conditioner as described above when running the program instructions.

[0010] In some embodiments, the air conditioner comprises the control device for an air conditioner as described above.

[0011] In some embodiments, the storage medium stores program instructions, which, when executed, perform the control method for an air conditioner as described above.

[0012] The control method for an air conditioner, the device, the air conditioner and the storage medium provided by the embodiments of the present disclosure can achieve the following technical effects:

[0013] After the air conditioner obtains its current working condition and current current value, the leakage degree of refrigerant is determined according to the current working condition and the current current value. Then, the air conditioner is controlled to execute a corresponding control program according to the leakage degree. In the process of refrigerant leakage detection of the air conditioner, the current working condition and the current current value, which can indirectly reflect the leakage degree of refrigerant, are used to determine the leakage of refrigerant, without the need to increase hardware such as sensors related to the pressure value of refrigerant. Therefore, the method can automatically detect the leakage of refrigerant while reducing the hardware cost of the self-detection of refrigerant leakage.

[0014] The general description above and the following description below are exemplary and explanatory only and are not intended to be limiting. BRIEF DESCRIPTION OF DRAWINGS

[0015] One or more embodiments are illustrated by way of example in the figures that are not intended to be limiting of the embodiments as disclosed. Like numbers refer to like elements throughout the drawings, which are not necessarily to scale, with:

[0016] Figure 1 is a schematic diagram of a control method for an air conditioner provided by an embodiment of the present disclosure;

[0017] Figure 2 is a schematic diagram of another control method for an air conditioner provided by an embodiment of the present disclosure;

[0018] Figure 3 is a schematic diagram of another control method for an air conditioner provided by an embodiment of the present disclosure;

[0019] Figure 4 is a schematic diagram of another control method for an air conditioner provided by an embodiment of the present disclosure.

[0020] Figure 5 is a schematic diagram of another control method for an air conditioner provided by an embodiment of the present disclosure.

[0021] Figure 6 is a schematic diagram of another control method for an air conditioner provided by an embodiment of the present disclosure.

[0022] Figure 7 is a schematic diagram of a control device for an air conditioner provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0023] In order to enable a person skilled in the art to more fully understand the features and technical contents of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are used only for reference and are not intended to limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0024] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily have 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 disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0025] Unless otherwise specified, the term "a plurality of" means two or more.

[0026] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the preceding and following objects. For example, A / B represents: A or B.

[0027] The term "and / or" is a description of the association relationship between objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.

[0028] The term "corresponding" can refer to an association relationship or a binding relationship. A and B correspond to each other means that there is an association relationship or a binding relationship between A and B.

[0029] In combination Figure 1 As shown, the embodiments of the present disclosure provide a control method for an air conditioner, comprising:

[0030] S01, the air conditioner obtains a current working condition of the air conditioner and a current current value.

[0031] In this step, the current working condition includes an indoor working condition and an outdoor working condition. The current current value represents an overall current value of the air conditioner when the air conditioner is normally operated in the current working condition.

[0032] S02, the air conditioner determines a leakage degree of refrigerant according to the current working condition and the current current value.

[0033] S03, the air conditioner controls the air conditioner to execute a corresponding control program according to the leakage degree.

[0034] By using the control method for the air conditioner provided in the embodiments of the present disclosure, after the air conditioner obtains a current working condition and a current current value, the air conditioner determines a leakage degree of refrigerant according to the current working condition and the current current value. Then, the air conditioner controls the air conditioner to execute a corresponding control program according to the leakage degree. In the process of detecting the leakage of refrigerant, the current working condition and the current current value that can indirectly reflect the leakage degree of refrigerant are used to determine the leakage of refrigerant, without the need to increase hardware such as a sensor related to the pressure value of the refrigerant. Therefore, the method can automatically detect the leakage of refrigerant while reducing the hardware cost of the self-detection of the leakage of refrigerant.

[0035] It should be noted that the overall current value of the air conditioner when the air conditioner is normally operated is different in different working conditions. At the same time, in any working condition, if the refrigerant leaks, the current value of the overall current value decreases. And the greater the absolute value of the difference between the overall current value in this working condition and the overall current value when the air conditioner is normally operated, the more serious the leakage of the refrigerant. Therefore, the embodiments of the present disclosure determine the leakage degree of the refrigerant according to the current working condition and the current current value, so as to accurately automatically detect the leakage of the refrigerant.

[0036] Optionally, in combination with Figure 2 As shown in the figure, the air conditioner determines a leakage degree of refrigerant according to the current working condition and the current current value, including:

[0037] S11, the air conditioner obtains an information table, and the information table stores different preset working conditions and preset power values and preset current values corresponding to the preset working conditions.

[0038] In this step, the preset power value represents an overall power value of the air conditioner. The preset current value represents an overall current value of the air conditioner. Since the overall power value of the air conditioner is different in different working conditions, and the overall current value is also different, the information table pre-stores different preset working conditions and preset power values and preset current values corresponding to the preset working conditions.

[0039] S12, the air conditioner matches the target power value and the target current value corresponding to the current working condition from the information table.

[0040] S13, the air conditioner obtains a current current value corresponding to the air conditioner running at the target power value.

[0041] S14, the air conditioner determines the leakage degree of the refrigerant according to the matching of the current current value and the target current value.

[0042] In this way, first, the target power value under the current working condition can be accurately obtained by querying the information table. Then, the air conditioner is controlled to run at the target power value and the corresponding current current value is obtained. Finally, the leakage degree of the refrigerant is indirectly known according to the matching of the current current value and the target current value.

[0043] Optionally, in combination with Figure 3 As shown in the figure, the air conditioner determines the leakage degree of the refrigerant according to the matching of the current current value and the target current value, including:

[0044] S21, the air conditioner determines that the refrigerant is lightly leaked when the current current value is in a first preset range.

[0045] S22, the air conditioner determines that the refrigerant is moderately leaked when the current current value is in a second preset range.

[0046] S23, the air conditioner determines that the refrigerant is severely leaked when the current current value is in a third preset range.

[0047] S24, the air conditioner determines that the refrigerant is seriously leaked when the current current value is in a fourth preset range.

[0048] Wherein, the first preset range represents [target current value x 80%, target current value x 90%]. The second preset range represents [target current value x 70%, target current value x 80%]. The third preset range represents [target current value x 50%, target current value x 70%]. The fourth preset range represents (0, target current value x 50%).

[0049] In this way, since the greater the absolute value of the difference between the whole machine current value of the air conditioner under any working condition and the whole machine current value of the air conditioner running normally, the more serious the leakage degree of the refrigerant, therefore, the leakage degree of the refrigerant can be determined according to the matching of the current current value and different preset ranges, so as to improve the accuracy of the refrigerant leakage self-checking.

[0050] It should be noted that in the case where the current current value is in the fifth preset range, it is determined that the refrigerant is not leaked. Wherein, the fifth preset range represents (target current value x 90%, target current value x 110%].

[0051] Optionally, after determining the leakage degree of the refrigerant according to the matching of the current current value and the target current value, the air conditioner further comprises:

[0052] the air conditioner displays a fault code associated with the leakage degree; and / or,

[0053] the air conditioner broadcasts refrigerant deficiency information associated with the leakage degree.

[0054] In this way, after the refrigerant leaks, the user cannot know the specific refrigerant leakage condition. After the air conditioner determines the leakage degree of the refrigerant, the disclosure embodiment displays a fault code associated with the leakage degree or broadcasts refrigerant deficiency information associated with the leakage degree, so that the user can quickly know the leakage degree of the refrigerant to perform troubleshooting or manual detection.

[0055] It should be noted that the leakage degree of the refrigerant is consistent with the deficiency degree of the refrigerant, so the deficiency degree of the refrigerant can also be indirectly known according to the leakage degree of the refrigerant. As an example, when the refrigerant leaks slightly, the slight leakage of the refrigerant indicates a slight deficiency of the refrigerant. Accordingly, the refrigerant deficiency information includes audio information of slight deficiency, and the air conditioner broadcasts the audio information. As another example, when the refrigerant leaks moderately, the moderate leakage of the refrigerant indicates a moderate deficiency of the refrigerant. Accordingly, the air conditioner displays a fault code associated with the moderate deficiency.

[0056] It can be understood that the air conditioner is configured with a display screen. The air conditioner displays a fault code associated with the leakage degree, which can be displayed on the display screen, or the air conditioner is in communication connection with a detection device, and the air conditioner sends the fault code associated with the leakage degree to the detection device for display on the detection device.

[0057] The air conditioner is also configured with an audio device. The air conditioner broadcasts refrigerant deficiency information associated with the leakage degree, which can be broadcast through the audio device. Alternatively, the air conditioner is in communication connection with a terminal device, and the air conditioner sends the refrigerant deficiency information associated with the leakage degree to the terminal device for broadcasting through the terminal device.

[0058] Optionally, after determining that the refrigerant leaks severely or seriously, the air conditioner further comprises:

[0059] The air conditioner controls the compressor, the indoor fan and the outdoor fan to stop running.

[0060] In this way, after determining that the refrigerant is severely leaked or seriously leaked, the air conditioner is likely to abnormally stop the compressor without timely supplementing the refrigerant. In order to reduce the adverse effects of the refrigerant leakage on the compressor as much as possible, the air conditioner controls the compressor, the indoor fan and the outdoor fan to stop running, thereby improving the safety of the compressor.

[0061] In combination with Figure 4 As shown in the accompanying drawings, the embodiments of the present disclosure further provide a control method for an air conditioner, comprising:

[0062] S31, the air conditioner acquires a current working condition and a current current value of the air conditioner.

[0063] S32, the air conditioner determines a leakage degree of the refrigerant according to the current working condition and the current current value.

[0064] S33, the air conditioner controls the air conditioner to perform a refrigerant supplement program in a case where the refrigerant is severely leaked or seriously leaked.

[0065] By using the control method for the air conditioner provided by the embodiments of the present disclosure, the air conditioner controls the air conditioner to perform the refrigerant supplement program when determining that the refrigerant is severely leaked or seriously leaked. In this way, the leakage degree of the refrigerant is reduced by timely supplementing the refrigerant, thereby reducing the adverse effects of the refrigerant leakage on the compressor.

[0066] It can be understood that, after determining that the refrigerant is severely leaked or seriously leaked, the air conditioner can perform a forced shutdown mode, so that the user cannot start the air conditioner.

[0067] In combination with Figure 5 As shown in the accompanying drawings, the embodiments of the present disclosure further provide a control method for an air conditioner, comprising:

[0068] S41, the air conditioner acquires a current working condition and a current current value of the air conditioner.

[0069] S42, the air conditioner determines a leakage degree of the refrigerant according to the current working condition and the current current value.

[0070] S43, the air conditioner controls the air conditioner to perform a refrigerant supplement program in a case where the refrigerant is severely leaked or seriously leaked.

[0071] S44, the air conditioner re-determines the leakage degree of the refrigerant.

[0072] S45, the air conditioner controls the air conditioner to perform a start-up program in a case where the new leakage degree indicates that the refrigerant is slightly leaked or moderately leaked.

[0073] The control method for the air conditioner provided in the embodiment of the present disclosure can be used to re-determine the leakage degree of the refrigerant after the refrigerant supplement procedure is performed, and perform a corresponding control procedure according to the leakage degree of the refrigerant. When the new leakage degree indicates that the refrigerant is slightly leaked or moderately leaked, it indicates that the current refrigerant amount is sufficient to meet the refrigerant amount requirement of the compressor. At this time, the start-up procedure is performed. The embodiment of the present disclosure improves the real-time performance of the refrigerant amount regulation by running the refrigerant supplement procedure on the basis of automatically detecting the refrigerant leakage.

[0074] In combination Figure 6 The embodiment of the present disclosure also provides a control method for an air conditioner, which comprises the following steps:

[0075] S51, the air conditioner acquires the current working condition of the air conditioner and the current current value.

[0076] S52, the air conditioner determines the leakage degree of the refrigerant according to the current working condition and the current current value.

[0077] S53, the air conditioner pushes a prompt information comprising the refrigerant leakage degree information to realize manual investigation in the case of determining that the refrigerant is slightly leaked or moderately leaked.

[0078] S54, the air conditioner controls the air conditioner to perform a start-up procedure in the case of receiving a confirmation instruction. The confirmation instruction is used to indicate that the current refrigerant amount meets the operation requirement of the compressor.

[0079] The control method for the air conditioner provided in the embodiment of the present disclosure can be used to push the prompt information comprising the refrigerant leakage degree information when the refrigerant is determined to be slightly leaked or moderately leaked, so that the user can manually investigate according to the prompt information. If the user determines that the current refrigerant amount can meet the operation requirement of the compressor in the investigation process, the user sends a confirmation instruction to the air conditioner. The air conditioner performs a start-up procedure when the confirmation instruction is received. The embodiment of the present disclosure further improves the accuracy of the refrigerant leakage self-checking by confirming the refrigerant amount in the way of manual investigation after the refrigerant leakage self-checking.

[0080] Optionally, the current refrigerant amount meets the operation requirement of the compressor in the following way:

[0081] The current refrigerant amount is greater than or equal to the refrigerant threshold value.

[0082] The refrigerant threshold value represents the lower limit value of the refrigerant corresponding to the operation of the compressor.

[0083] In actual application, the air conditioner pre-stores an information table as shown in Table 1. The information table stores different preset working conditions and the corresponding whole machine power values and whole machine current values of each preset working condition. The preset working conditions comprise indoor working conditions and outdoor working conditions.

[0084] The control method for the air conditioner performs the following steps:

[0085] S61, the air conditioner acquires an information table and acquires that the current indoor working condition is 28.2°C and the current outdoor public is 30.5°C.

[0086] S62, the air conditioner matches the corresponding target power value of 2.57kW and the target current value of 10.93A under the current working condition from the information table.

[0087] S63, the air conditioner runs at the target power value, and acquires the corresponding current current value when running at the target power value. Among them, the current current value is 7.2A.

[0088] S64, the air conditioner compares the current current value with different preset ranges, and after comparison, it is known that the current current value is in the third preset range. Therefore, it is determined that the refrigerant is severely leaked. The third preset range represents [target current value x 50%, target current value x 70%), that is, [5.465, 7.651).

[0089] S65, the air conditioner broadcasts the voice information "the refrigerant is severely missing, please replenish the refrigerant in time" through the audio device. At the same time, the air conditioner executes the refrigerant replenishment program.

[0090] S66, the air conditioner re-determines the leakage degree of the refrigerant after executing the refrigerant replenishment program for one hour. After confirmation, the refrigerant is not leaked.

[0091] S67, the air conditioner executes the start-up program.

[0092] Table 1 information table

[0093]

[0094] In combination Figure 7 As shown, the embodiment of the disclosure provides a control device for an air conditioner, which comprises a processor 100 and a memory 101. Optionally, the device can also comprise a communication interface 102 and a bus 103. Among them, the processor 100, the communication interface 102, the memory 101 can complete the communication among each other through the bus 103. The communication interface 102 can be used for information transmission. The processor 100 can call the logical instructions in the memory 101 to execute the control method for the air conditioner of the above-mentioned embodiment.

[0095] In addition, the logical instructions in the memory 101 described above can be realized in the form of a software function unit and sold or used as an independent product, which can be stored in a computer readable storage medium.

[0096] The memory 101 can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiments of the present disclosure. The processor 100 executes the function application and data processing by running the program instructions / modules stored in the memory 101, that is, implements the control method for the air conditioner in the above embodiments.

[0097] The memory 101 can include a program storage area and a data storage area. The program storage area can store an operating system and at least one application required by a function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 101 can include a high-speed random access memory, and can also include a non-volatile memory.

[0098] The embodiments of the present disclosure provide an air conditioner comprising the above control device for the air conditioner.

[0099] The embodiments of the present disclosure provide a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are configured to execute the above control method for the air conditioner.

[0100] The embodiments of the present disclosure provide a computer program product, which comprises a computer program stored on a computer readable storage medium, and the computer program comprises program instructions, and when the program instructions are executed by a computer, the computer executes the above control method for the air conditioner.

[0101] The above computer readable storage medium can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0102] The technical solutions of the embodiments of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes one or more instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in the embodiments of the present disclosure. The above storage medium can be a non-transitory storage medium, including a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, etc. various media that can store program codes, or a transitory storage medium.

[0103] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0104] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0105] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to apparatuses, devices, etc.), can be implemented in other manners. For example, the described apparatus embodiments can be implemented only in a form of a logical function, and can be implemented by using a manner such as software (for example, application program) or the like. In some embodiments, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed coupling or direct coupling or indirect coupling between different units, or the coupling or direct coupling or indirect coupling between the displayed or discussed communication connections can be in a form of electrical, mechanical or other forms.

[0106] The flowcharts and block diagrams in the drawings show the possible implementation architectures, functions and operations of the system, method and computer program product according to the embodiments of the present disclosure. In this regard, each block in the flowcharts or block diagrams can represent a module, a program segment or a part of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions noted in the blocks can occur in an order different from that noted in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the drawings, the operations or steps corresponding to different blocks can also occur in an order different from that disclosed in the descriptions, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and the combination of blocks in the block diagrams and / or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A control method for an air conditioner, characterized by, The method comprises: acquiring a current working condition and a current current value of the air conditioner; determining a refrigerant leakage degree according to the current working condition and the current current value; controlling the air conditioner to execute a corresponding control program according to the leakage degree; wherein the greater the absolute value of the difference between the current current value and the whole machine current value when the air conditioner is normally running under the current working condition, the more serious the refrigerant leakage degree; the determining of the refrigerant leakage degree according to the current working condition and the current current value comprises: acquiring an information table, the information table storing different preset working conditions and preset power values and preset current values corresponding to each preset working condition; matching out a target power value and a target current value corresponding to the current working condition from the information table; acquiring a current current value corresponding to the target power value when the air conditioner is running; and determining the refrigerant leakage degree according to the matching condition of the current current value and the target current value.

2. The method of claim 1, wherein, the determining of the refrigerant leakage degree according to the matching condition of the current current value and the target current value further comprises: determining that the refrigerant is lightly leaked in the case that the current current value is located in a first preset range; determining that the refrigerant is moderately leaked in the case that the current current value is located in a second preset range; determining that the refrigerant is heavily leaked in the case that the current current value is located in a third preset range; determining that the refrigerant is seriously leaked in the case that the current current value is located in a fourth preset range; wherein the first preset range represents [target current value × 80%, target current value × 90%]; the second preset range represents [target current value × 70%, target current value × 80%); the third preset range represents [target current value × 50%, target current value × 70%); the fourth preset range represents (0, target current value × 50%).

3. The method of claim 1, wherein, after the determining of the refrigerant leakage degree according to the matching condition of the current current value and the target current value, the method further comprises: displaying a fault code associated with the leakage degree; and / or, broadcasting refrigerant missing information associated with the leakage degree.

4. The method according to any one of claims 1 to 3, characterized in that, in the case that it is determined that the refrigerant is heavily leaked or the refrigerant is seriously leaked, the controlling of the air conditioner to execute the corresponding control program according to the leakage degree comprises: controlling the air conditioner to execute a refrigerant supplement program.

5. The method of claim 4, wherein, after the controlling of the air conditioner to execute the refrigerant supplement program, the method further comprises: redetermining the refrigerant leakage degree; controlling the air conditioner to execute a start-up program in the case that the new leakage degree indicates that the refrigerant is lightly leaked or moderately leaked.

6. The method according to any one of claims 1 to 3, characterized in that, in the case that it is determined that the refrigerant is lightly leaked or moderately leaked, the controlling of the air conditioner to execute the corresponding control program according to the leakage degree comprises: pushing prompt information including refrigerant leakage degree information to realize manual troubleshooting; controlling the air conditioner to execute a start-up program in the case that a confirmation instruction is received.

7. A control device for an air conditioner comprising a processor and a memory having stored program instructions, characterized in that, The processor is configured to execute the control method for the air conditioner according to any one of claims 1 to 6 when running the program instructions.

8. An air conditioner characterized by comprising: The control device for the air conditioner according to claim 7.

9. A storage medium storing program instructions, characterized in that, The program instructions, when executed, perform the control method for an air conditioner as claimed in any one of claims 1 to 6.

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