Method and device for starting a compressor, household appliance, and storage medium

Abstract

The present application relates to the field of smart home appliance technology and discloses a method for starting a compressor, comprising: upon receiving a compressor start command, detecting the moisture content of the refrigerant; when the moisture content of the refrigerant is less than a content threshold, driving the compressor using a preset torque as a target torque; detecting the rotor angle of the compressor; and adjusting the target torque of the compressor when the rotor angle is less than or equal to a first angle. By detecting the rotor angle of the compressor after starting with the target torque, the target torque is adjusted to ensure normal rotor rotation when the rotor rotation fails to meet the requirement, thereby avoiding compressor start-up failure and improving the reliability of compressor start-up. The present application also discloses a device for starting a compressor, a home appliance, and a storage medium.

Description

Technical Field

[0001] The present application relates to the field of smart home appliance technology, for example, to a method and device for starting a compressor, a home appliance, and a storage medium. Background Art

[0002] Currently, household appliances with variable-frequency temperature control (such as air conditioners and refrigerators) often use the operation of a compressor to drive the flow of refrigerant to achieve heat exchange and temperature control. However, during the compressor startup process, there are often issues with high startup power consumption and loud startup noise.

[0003] In the related art, a method for starting a compressor includes: using the preset driving torque of the compressor as a constant torque control value, driving the compressor to start and run until the speed of the compressor reaches a preset speed; the preset speed is less than the target speed; after the speed of the compressor reaches the preset speed, reducing the driving torque of the compressor until the speed of the compressor reaches the target speed.

[0004] During the implementation of the embodiments of the present disclosure, it was found that at least the following problems exist in the related art:

[0005] This method can reduce power consumption and noise during compressor startup by selecting an appropriate preset drive torque. However, as the compressor operates under different operating conditions, the internal rotor will gradually rust and become stuck. When starting the compressor with a fixed preset drive torque, the preset drive torque may not be enough to rotate the rotor, resulting in compressor startup failure and low startup reliability. Summary of the Invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] Embodiments of the present disclosure provide a method and apparatus for starting a compressor, a household appliance, and a storage medium to improve the reliability of compressor startup.

[0008] In some embodiments, the method includes: detecting the moisture content of the refrigerant when a compressor start command is received; using a preset torque as a target torque to drive the compressor when the moisture content of the refrigerant is less than a content threshold; detecting the rotor angle of the compressor; and adjusting the target torque of the compressor when the rotor angle is less than or equal to a first angle.

[0009] Optionally, adjusting the target torque of the compressor includes: determining a target correction coefficient of the target torque according to the rotor angle; and adjusting the target torque of the compressor according to the target correction coefficient.

[0010] Optionally, a target correction coefficient of the target torque is determined based on the rotor angle, including: determining a first correction coefficient when the rotor angle is greater than a second angle; determining the first correction coefficient as the target correction coefficient; determining a second correction coefficient when the rotor angle is less than or equal to the second angle and greater than zero; and determining the second correction coefficient as the target correction coefficient.

[0011] Optionally, before determining the target correction coefficient of the target torque based on the rotor angle, it also includes: obtaining the downtime duration before the compressor starts; obtaining the number of starts of the compressor; determining a first correction coefficient, including: determining the first correction coefficient based on the downtime duration, the number of starts and the moisture content of the refrigerant; determining a second correction coefficient, including: determining the second correction coefficient based on the downtime duration, the number of starts and the moisture content of the refrigerant.

[0012] Optionally, determining a first correction coefficient based on the shutdown duration, the number of starts, and the moisture content of the refrigerant includes: Determine the second correction factor based on the shutdown duration, number of starts, and refrigerant moisture content, including: Among them, α is the first correction coefficient, β is the second correction coefficient, n is the number of starts, t is the shutdown duration, a is the refrigerant moisture content, b is the difference in the number of starts, and s is the time conversion coefficient.

[0013] Optionally, adjusting the target torque of the compressor according to the target correction coefficient includes: determining the product of the target correction coefficient and the target torque as the correction torque; and determining the sum of the correction torque and the target torque as the corrected target torque.

[0014] Optionally, after detecting the rotor angle of the compressor, it also includes: when the rotor angle is greater than the first angle, detecting the current speed of the compressor; when the duration of the current speed being greater than or equal to the set speed reaches a set time, controlling the compressor to operate with a set instruction; and determining the target torque as a preset torque.

[0015] In some embodiments, the apparatus includes a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned method for starting a compressor when executing the program instructions.

[0016] In some embodiments, the household appliance includes the above-mentioned device for starting a compressor.

[0017] In some embodiments, the storage medium stores program instructions, and when the program instructions are run, the above-mentioned method for starting the compressor is executed.

[0018] The method and apparatus for starting a compressor, household appliance, and storage medium provided by the embodiments of the present disclosure can achieve the following technical effects:

[0019] When the compressor start command is received, the moisture content of the refrigerant in the pipeline is first detected to determine whether the moisture in the refrigerant will damage the compressor. When the moisture content of the refrigerant is less than the content threshold, the water content in the refrigerant is small and the impact on the compressor is small, and the compressor can be used normally. First, the compressor is driven with the stored preset torque as the target torque, and the rotor angle of the compressor is detected to determine whether the compressor can rotate normally. When the rotor angle is less than or equal to the first angle, the rotor cannot rotate normally, resulting in difficulty in starting the compressor. The target torque of the compressor is adjusted to enable the compressor to start normally. By detecting the rotor angle of the compressor after starting with the target torque, the target torque is adjusted to enable the rotor to rotate normally when the rotor rotation fails to meet the requirements, thereby avoiding compressor start-up failure and improving the reliability of the compressor start-up.

[0020] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0022] Figure 1 is a schematic diagram of a method for starting a compressor provided by an embodiment of the present disclosure;

[0023] Figure 2 is a schematic diagram of another method for starting a compressor provided by an embodiment of the present disclosure;

[0024] Figure 3 is a schematic diagram of another method for starting a compressor provided by an embodiment of the present disclosure;

[0025] Figure 4 is a schematic diagram of another method for starting a compressor provided by an embodiment of the present disclosure;

[0026] Figure 5 is a schematic diagram of another method for starting a compressor provided by an embodiment of the present disclosure;

[0027] Figure 6 This is a schematic diagram of a device for starting a compressor provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0028] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0029] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0030] Unless otherwise stated, the term "plurality" means two or more.

[0031] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0032] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0033] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0034] Currently, for household appliances with variable frequency temperature control (such as air conditioners, refrigerators, etc.), the flow of refrigerant is often driven by the operation of the compressor to achieve the function of heat exchange and temperature control. As the compressor operates in different usage environments, there are problems with startup power consumption and high noise caused by differences in rotor position when the compressor is shut down. At the same time, since the refrigerant pipeline cannot completely remove moisture during vacuum pumping when the household appliance leaves the factory or is subsequently installed or moved, the moisture contained in the refrigerant causes the internal rotor to gradually rust and even become stuck. Therefore, the compressor will have difficulty starting as the usage time increases.

[0035] An embodiment of the present disclosure provides a household appliance, comprising a compressor, a first data collector, a second data collector, a third data collector, and a processor. The compressor is used to drive the flow of refrigerant. The first data collector is provided in the compressor, and is used to detect the rotor angle and current speed of the compressor. The second data collector is provided in the household appliance, and is used to record the downtime duration before the compressor is started. The third data collector is provided in the refrigerant pipeline of the household appliance, and is used to detect the moisture content of the refrigerant. The processor is electrically connected to the compressor, the first data collector, the second data collector, and the third data collector, and is configured to adjust the target torque of the compressor according to the rotor angle, current speed, downtime duration, and moisture content of the refrigerant detected by the first data collector, the second data collector, and the third data collector, so as to realize the startup operation of the compressor.

[0036] Combine Figure 1 As shown, an embodiment of the present disclosure provides a method for starting a compressor, comprising:

[0037] S210: When receiving the compressor start instruction, the third data collector detects the moisture content of the refrigerant.

[0038] S220: When the moisture content of the refrigerant is less than the content threshold, the processor drives the compressor using the preset torque as the target torque.

[0039] S230: The first data collector detects the rotor angle of the compressor.

[0040] S240: When the rotor angle is less than or equal to the first angle, the processor adjusts the target torque of the compressor.

[0041] Using the method for starting a compressor provided by the embodiment of the present disclosure, when a compressor start instruction is received, the moisture content of the refrigerant in the pipeline is first detected to determine whether the moisture in the refrigerant will damage the compressor. When the moisture content of the refrigerant is less than the content threshold, the water content in the refrigerant is small and the impact on the compressor is small, and the compressor can be used normally. First, the compressor is driven with the stored preset torque as the target torque, and the rotor angle of the compressor is detected to determine whether the compressor can rotate normally. When the rotor angle is less than or equal to the first angle, the rotor cannot rotate normally, resulting in the problem of difficulty in starting the compressor, and the target torque of the compressor is adjusted to enable the compressor to start normally. By detecting the rotor angle of the compressor after starting with the target torque, the target torque is adjusted to enable the rotor to rotate normally when the rotor rotation fails to meet the requirements, thereby avoiding compressor start-up failure and improving the reliability of the compressor start-up.

[0042] Optionally, the value range of the content threshold is [18, 22]%. Preferably, the content threshold is 19%, 20% or 21%. When the household appliance is used for the first time (the preset torque will be automatically updated when used subsequently), the value range of the preset torque is [25, 35] Nm. Preferably, the preset torque is 28 Nm, 30 Nm or 32 Nm. The value range of the first angle is [360, 380]°. Preferably, the first angle is 365°, 370° or 375°. In this way, when the value of the content threshold is within the above range, it can be distinguished whether the moisture content of the refrigerant will cause the rotor of the compressor to rust and be damaged during use, thereby increasing the service life of the compressor. When the value of the preset torque is within the above range, the compressor is started with low consumption and low noise when the household appliance is used for the first time, which plays a role in energy saving and noise reduction. When the value of the first rotation angle is within the above range, it is possible to distinguish whether the rotor of the compressor can make a complete rotation under the preset torque, thereby determining whether the compressor has difficulty starting under the preset torque.

[0043] Combine Figure 2 As shown, an embodiment of the present disclosure provides another method for starting a compressor, comprising:

[0044] S210: When receiving the compressor start instruction, the third data collector detects the moisture content of the refrigerant.

[0045] S220: When the moisture content of the refrigerant is less than the content threshold, the processor drives the compressor using the preset torque as the target torque.

[0046] S230: The first data collector detects the rotor angle of the compressor.

[0047] S250: When the rotor angle is less than or equal to the first angle, the processor determines a target correction coefficient of the target torque according to the rotor angle.

[0048] At step S260 , the processor adjusts the target torque of the compressor according to the target correction coefficient, and returns to step S230 .

[0049] In the compressor startup method provided by an embodiment of the present disclosure, when the rotor angle is less than or equal to a first angle and the target torque needs to be adjusted, the degree to which the target torque drives the compressor operation is first determined based on the rotor angle to determine a target correction coefficient for adjusting the target torque. The target torque is then adjusted based on the target correction coefficient so that the target torque can drive the compressor to start normally. By adjusting the target torque based on the rotor angle, the rotor rotates normally, avoiding compressor startup failure and improving the reliability of compressor startup.

[0050] Optionally, the processor in step S250 determines a target correction coefficient for the target torque based on the rotor angle, including: when the rotor angle is greater than a second angle, the processor determines a first correction coefficient. The processor determines the first correction coefficient as the target correction coefficient. When the rotor angle is less than or equal to the second angle and greater than zero, the processor determines a second correction coefficient. The processor determines the second correction coefficient as the target correction coefficient. Thus, because the rotor angle reflects the degree to which the target torque drives the compressor rotor, the target torque needs to be adjusted accordingly based on the rotor angle. When the rotor angle is less than or equal to the first angle and greater than the second angle, the target torque can cause significant rotor rotation, and a significant correction to the target torque is not required, thereby using the first correction coefficient. When the rotor angle is less than or equal to the second angle and greater than zero, the target torque can cause minimal rotor rotation, and a significant correction to the target torque is required, thereby using the second correction coefficient. By using different correction coefficients to adjust the target torque at different rotor angles, compressor startup failures are avoided, thereby improving compressor startup reliability.

[0051] Optionally, the second rotation angle has a value range of [170, 190]°. Preferably, the second rotation angle has a value of 175°, 180°, or 185°. Thus, when the second rotation angle is within the above range, the degree to which the target torque contributes to the rotor drive can be distinguished, thereby adjusting the target torque in different ways to achieve reliable startup of the compressor.

[0052] Combine Figure 3 As shown, an embodiment of the present disclosure provides another method for starting a compressor, comprising:

[0053] S210: When receiving the compressor start instruction, the third data collector detects the moisture content of the refrigerant.

[0054] S220: When the moisture content of the refrigerant is less than the content threshold, the processor drives the compressor using the preset torque as the target torque.

[0055] S230: The first data collector detects the rotor angle of the compressor.

[0056] S241: When the rotor angle is less than or equal to the first angle, the processor automatically increases the number of startup times of the compressor.

[0057] S242: The processor obtains the stop duration of the compressor before starting.

[0058] S243: The processor obtains the number of startups of the compressor.

[0059] S251, when the rotor angle is greater than the second angle, the processor determines a first correction coefficient according to the shutdown duration, the number of starts, and the moisture content of the refrigerant.

[0060] At S252 , the processor determines the first correction coefficient as the target correction coefficient and executes step S261 .

[0061] S253: When the rotor angle is less than or equal to the second angle and greater than zero, the processor determines a second correction coefficient according to the shutdown duration, the number of starts, and the moisture content of the refrigerant.

[0062] S254: The processor determines the second correction coefficient as the target correction coefficient.

[0063] S261: The processor determines the product of the target correction coefficient and the target torque as the correction torque.

[0064] S262: The processor determines the sum of the correction torque and the target torque as the corrected target torque.

[0065] At step S263, the processor determines whether the target torque is less than or equal to the torque threshold. If so, the processor executes step S264. If not, the processor executes step S265.

[0066] S264: The processor controls the compressor to operate at the target torque and returns to step S230.

[0067] S265, the processor issues a compressor fault code reminder.

[0068] The longer the shutdown duration, the larger the first and second correction factors. The more startups, the larger the first and second correction factors. The higher the refrigerant moisture content, the larger the first and second correction factors.

[0069] Using the compressor startup method provided by an embodiment of the present disclosure, if the rotor angle is less than or equal to a first angle, the compressor startup fails. The number of compressor startups is automatically incremented to adjust the target torque. The downtime duration and number of startups before the compressor is started are obtained. A first correction factor or a second correction factor is determined based on the downtime duration, number of startups, and refrigerant moisture content, so that the degree of target torque adjustment corresponds to the variables affecting the rotation of the compressor rotor. The longer the downtime duration before the compressor is started, the more severe the rotor rust is, and the higher the target torque required. The more the compressor is started, the more startup failures occur at the target torque, and the higher the target torque required for startup. The higher the refrigerant moisture content, the more susceptible the compressor rotor is to rust, and the higher the target torque required for startup. After determining the target correction factor, it is multiplied by the target torque to obtain the correction torque, and then added to the target torque to obtain the corrected target torque, and the compressor startup operation is attempted again. If the target torque is less than or equal to the torque threshold, operating the compressor at the target torque will not damage the compressor, and the compressor startup is attempted again. If the target torque exceeds the torque threshold, starting the compressor at the target torque could damage the compressor, or the maximum torque could fail to reach the target torque, resulting in a compressor fault code alerting the user to repair the compressor. By adjusting the compressor's target torque in different ways under different circumstances, compressor startup failures are avoided, improving compressor startup reliability.

[0070] Optionally, the torque threshold value is in the range of [45, 55] Nm. Preferably, the torque threshold value is 48 Nm, 50 Nm, or 52 Nm. Thus, when the torque threshold value is within the above range, it is possible to distinguish whether starting at the target torque will damage the compressor, thereby increasing the service life of the compressor.

[0071] Optionally, the processor in step S251 determines a first correction coefficient according to the shutdown duration, the number of starts, and the moisture content of the refrigerant, including: The processor in step S253 determines a second correction coefficient based on the shutdown duration, the number of starts, and the moisture content of the refrigerant, including: Wherein, α is the first correction coefficient, β is the second correction coefficient, n is the number of starts, t is the downtime duration, a is the refrigerant moisture content, b is the difference in the number of starts, and s is the time conversion coefficient. The difference in the number of starts can be used to distinguish the difference between the first correction coefficient and the second correction coefficient, and its value can be 1, 2, 3, or other positive integers. The time conversion coefficient depends on the unit of the downtime duration. When the downtime duration is measured in seconds, the time conversion coefficient is generally 1 or 2. When the downtime duration is measured in minutes, the time conversion coefficient is generally 60 or 120. In this way, the first correction coefficient and the second correction coefficient can be specifically calculated according to the formula, and the first correction coefficient and the second correction coefficient are positively correlated with the downtime duration, the number of starts, and the refrigerant moisture content, thereby compensating for the degree of compressor startup obstruction. By accurately calculating the target correction coefficient of the target torque, the adjustment degree of the target torque meets the requirements of the compressor startup and avoids excessive adjustment resulting in excessive power consumption and noise, thereby improving the reliability of the compressor startup.

[0072] Combine Figure 4 As shown, an embodiment of the present disclosure provides another method for starting a compressor, comprising:

[0073] S210: When receiving the compressor start instruction, the third data collector detects the moisture content of the refrigerant.

[0074] S220: When the moisture content of the refrigerant is less than the content threshold, the processor drives the compressor using the preset torque as the target torque.

[0075] S230: The first data collector detects the rotor angle of the compressor.

[0076] S240: When the rotor angle is less than or equal to the first angle, the processor adjusts the target torque of the compressor and returns to step S230.

[0077] S270: When the rotor rotation angle is greater than the first rotation angle, the first data collector detects the current rotation speed of the compressor.

[0078] S271: When the duration of the current speed being greater than or equal to the set speed reaches a set time, the processor controls the compressor to operate according to the set instruction.

[0079] S272: The processor determines the target torque as the preset torque.

[0080] S273: When the current speed is lower than the set speed, or the duration of the current speed being greater than or equal to the set speed does not reach the set time, the processor issues a compressor fault code reminder.

[0081] The duration of the current speed being greater than or equal to the set speed reaching the set time means that the processor begins timing when the current speed is greater than or equal to the set speed. During the timing time, the current speed remains greater than or equal to the set speed until the timing time reaches the set time. If the current speed falls below the set speed during the timing time, the processor resets the timing and determines that the duration of the current speed being greater than or equal to the set speed has not reached the set time.

[0082] Using the method for starting a compressor provided by the embodiment of the present disclosure, when the rotor angle is greater than the first angle, the rotor can rotate normally, and the stability of the compressor startup needs to be detected and determined to prevent damage to the compressor. When the current speed is greater than or equal to the set speed, the rotor can rotate normally for many times, and the stability at this speed needs to be determined. When the current speed greater than or equal to the set speed can continue to run for the set time, the compressor has high stability and can be used normally, and operates according to the instructions set by the user (for example, the air conditioner or refrigerator adjusts the speed of the compressor rotor according to the target temperature). When the current speed greater than or equal to the set speed cannot continue to run for the set time, the compressor can only meet the usage requirements for a short time, and the poor operating stability requires a compressor fault code reminder. When the current speed is less than the set speed, the rotor speed is abnormal, and a compressor fault code reminder needs to be issued. By detecting and judging the speed stability of the compressor when the rotor angle of the compressor meets the requirements, compressor operation failures are avoided, thereby improving the reliability of compressor startup and operation.

[0083] Optionally, the speed setting value range is [1800, 2000] Nm. Preferably, the speed setting value is 1850 rpm, 1900 rpm or 1950 rpm. The time setting value range is [5, 10] s. Preferably, the time setting value is 6 s, 7.5 s or 9 s. In this way, when the speed setting value is within the above range, it is possible to distinguish whether the current speed of the compressor is normal, so as to determine whether the compressor can operate normally, thereby improving the reliability of the compressor startup. When the time setting value is within the above range, it is possible to distinguish the stability of the compressor at the current speed, so as to determine whether the compressor can operate stably, thereby improving the reliability of the compressor startup.

[0084] Combine Figure 5 As shown, an embodiment of the present disclosure provides another method for starting a compressor, comprising:

[0085] S210: When receiving the compressor start instruction, the third data collector detects the moisture content of the refrigerant.

[0086] S220: When the moisture content of the refrigerant is less than the content threshold, the processor drives the compressor using the preset torque as the target torque and executes step S230.

[0087] S221: When the moisture content of the refrigerant is greater than or equal to the content threshold, the processor issues a refrigerant fault code reminder, and this control ends.

[0088] S230: The first data collector detects the rotor angle of the compressor.

[0089] S240: When the rotor angle is less than or equal to the first angle, the processor adjusts the target torque of the compressor.

[0090] Using the compressor startup method provided by the disclosed embodiments, if the refrigerant moisture content is greater than or equal to a threshold, the refrigerant contains too much moisture. Directly starting the compressor can easily cause the compressor to rust and seize, potentially damaging it. By issuing a refrigerant fault code to alert the user, appropriate measures can be taken to reduce the refrigerant moisture content, thereby extending the life of the compressor.

[0091] Combine Figure 6 As shown, an embodiment of the present disclosure provides a device for starting a compressor, comprising a processor 41 and a memory 42. Optionally, the device may further comprise a communication interface 43 and a bus 44. The processor 41, the communication interface 43, and the memory 42 may communicate with each other via the bus 44. The communication interface 43 may be used for information transmission. The processor 41 may invoke logic instructions in the memory 42 to execute the method for starting a compressor according to the above embodiment.

[0092] In addition, the logic instructions in the memory 42 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0093] Memory 42, as a storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of the present disclosure. Processor 41 executes the program instructions / modules stored in memory 42 to perform functional applications and data processing, thereby implementing the compressor startup method in the above-described embodiments.

[0094] The memory 42 may include a program storage area and a data storage area. The program storage area may store an operating system and at least one application required for a function; the data storage area may store data generated based on the use of the terminal device. Furthermore, the memory 42 may include high-speed random access memory and non-volatile memory.

[0095] An embodiment of the present disclosure provides a household appliance comprising the above-mentioned device for starting a compressor.

[0096] An embodiment of the present disclosure provides a storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned method for starting a compressor.

[0097] The aforementioned storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0098] The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program code, or a transient storage medium.

[0099] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to also include plural forms. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variations "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups of these. In the absence of further restrictions, an element defined by the sentence "comprising a..." does not exclude the presence of other identical elements in the process, method or device that includes the element. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments can be referenced to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can be found in the description of the method part.

[0100] Those skilled in the art will appreciate that the units and algorithm steps of each example 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 performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. The technicians will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0101] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units can be merely a logical functional division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, and can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, the functional units in the embodiments of the present disclosure may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0102] The flowcharts and block diagrams in the accompanying drawings show the possible implementation architectures, functions and operations of the systems, methods and computer program products according to the embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, program segment or part of the code, and the module, program segment or part of the code contains one or more executable instructions for implementing the specified logical functions. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in an order different from that disclosed in the description, 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, or they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified function or action, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for starting a compressor, characterized in that: include: When receiving the compressor start command, detect the moisture content of the refrigerant; When the moisture content of the refrigerant is less than the content threshold, the preset torque is used as the target torque to drive the compressor; Detect the rotor angle of the compressor; When the rotor rotation angle is less than or equal to the first rotation angle, obtaining the stop duration before the compressor is started; Get the number of compressor starts; When the rotor angle is greater than the second angle, a first correction coefficient is determined according to the shutdown duration, the number of starts, and the moisture content of the refrigerant, and the first correction coefficient is determined as the target correction coefficient; When the rotor angle is less than or equal to the second angle and greater than zero, a second correction coefficient is determined according to the shutdown duration, the number of starts, and the moisture content of the refrigerant, and the second correction coefficient is determined as the target correction coefficient; Adjust the target torque of the compressor according to the target correction coefficient.

2. The method according to claim 1, characterized in that Determine the first correction factor based on the shutdown duration, number of starts, and refrigerant moisture content, including: Determine the second correction factor based on the shutdown duration, number of starts, and refrigerant moisture content, including: Among them, α is the first correction coefficient, β is the second correction coefficient, n is the number of starts, t is the shutdown duration, a is the refrigerant moisture content, b is the difference in the number of starts, and s is the time conversion coefficient.

3. The method according to claim 1, characterized in that Adjust the target torque of the compressor according to the target correction coefficient, including: The product of the target correction coefficient and the target torque is determined as the correction torque; The sum of the correction torque and the target torque is determined as the corrected target torque.

4. The method according to any one of claims 1 to 3, characterized in that After detecting the rotor angle of the compressor, it also includes: When the rotor rotation angle is greater than the first rotation angle, detecting the current rotation speed of the compressor; When the current speed is greater than or equal to the set speed for a set time, the compressor is controlled to run at the set command; The target torque is determined as the preset torque.

5. A device for starting a compressor, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the compressor startup method according to any one of claims 1 to 4 when running the program instructions.

6. A household appliance, characterized in that: The device for starting a compressor as claimed in claim 5 is included.

7. A storage medium storing program instructions, characterized in that: When the program instructions are executed, the method for starting a compressor according to any one of claims 1 to 4 is executed.

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