A control method, device and refrigerator for a refrigerator compressor

Abstract

The present invention relates to a control method, device and refrigerator for a refrigerator compressor, belonging to the technical field of refrigerators. By obtaining the operating state of the compressor, judging whether the compressor fails in the starting state or the operating state according to the operating state of the compressor, determining the target starting time according to the current operating state and temperature parameters when the compressor stops due to a fault, and controlling the compressor to restart after an interval of the target starting time, the present invention intelligently controls the automatic restart of the compressor after it stops due to a fault, thereby improving the success rate of the automatic restart of the compressor after it stops due to a fault, making the start of the compressor more reliable, and further improving the intelligent level of the compressor and the self-recovery effect of compressor faults.

Description

Technical Field

[0001] The present invention belongs to the technical field of refrigerators, and particularly relates to a control method and device for a refrigerator compressor and a refrigerator. Background Art

[0002] At present, as a driven fluid machine that raises low-pressure gas to high-pressure gas, the compressor is the core of the refrigerator refrigeration system. It has been found in practice that after a failure occurs in the compressor of a refrigerator, the general treatment method is to control the compressor to stop operating due to the failure. After the stop, the compressor is restarted at a fixed time. However, there may be a situation where after the fixed stop time, due to the fact that the suction end pressure and the discharge end pressure of the compressor do not reach an equilibrium state, the restart of the compressor is still unsuccessful, or there is a situation where the compressor is locked after multiple attempts at restarting. Therefore, the intelligent level of this control method of restarting at a fixed time is relatively low, and the self-recovery effect of compressor failures is not good. Summary of the Invention

[0003] Therefore, the present invention provides a control method and device for a refrigerator compressor and a refrigerator, which helps to solve the problems of relatively low intelligent level of compressor control and poor self-recovery effect.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] In a first aspect, the present invention provides a control method for a refrigerator compressor, including:

[0006] Obtain the operating state of the compressor;

[0007] Judge whether the compressor has a failure according to the operating state of the compressor;

[0008] If the compressor has a failure, determine the current state of the compressor and control the compressor to stop operating; wherein, the current state is the starting state or the operating state;

[0009] Based on the current state and the current temperature parameters, determine the target start time;

[0010] Control the compressor to restart after an interval of the target start time.

[0011] Further, the current temperature parameters at least include the current ambient temperature and the compartment temperature; and

[0012] Based on the current state and the current temperature parameters, determining the target start time includes:

[0013] If the current state is the starting state and the current ambient temperature is less than the first preset temperature, determine the target start time as the first preset time;

[0014] If the current state is the startup state and the current ambient temperature is greater than or equal to the first preset temperature, determine that the target startup time is the second preset time;

[0015] If the current state is the running state and the compartment temperature is less than or equal to the second preset temperature, determine that the target startup time is the third preset time;

[0016] If the current state is the running state and the compartment temperature is greater than the second preset temperature, determine that the target startup time is the fourth preset time;

[0017] Wherein, the fourth preset time is greater than the third preset time.

[0018] Further, after controlling the compressor to restart after the target startup time interval, the method further includes:

[0019] When the compressor restart fails and the number of restart failures is greater than or equal to the preset number, control the compressor to stop restarting, control the driving board of the compressor to flash a light, and control the display screen to display a drive fault code;

[0020] When the compressor restart fails and the number of restart failures is less than the preset number, control the driving board of the compressor to flash a light, and control the compressor to restart after a preset interval time.

[0021] Further, before controlling the compressor to restart after a preset interval time, the method further includes:

[0022] Determine the preset interval time matching the number of restart failures; wherein, the more the number of restart failures, the longer the preset interval time.

[0023] Further, the method further includes:

[0024] Obtain the continuous normal operation time of the compressor;

[0025] Judge whether the continuous normal operation time of the compressor reaches the preset operation time;

[0026] If the continuous normal operation time of the compressor reaches the preset operation time, clear the failure times of the compressor and the continuous normal operation time of the compressor.

[0027] Further, the obtaining the operating state of the compressor includes:

[0028] If the continuous normal operation time of the compressor does not reach the preset operation time, obtain the operation state of the compressor.

[0029] In a second aspect, the present invention provides a control device for a refrigerator compressor, including:

[0030] An acquisition module, configured to acquire the operation state of the compressor;

[0031] A fault judgment module, configured to judge whether the compressor has a fault according to the operation state of the compressor;

[0032] An operation state determination module, configured to determine the current state of the compressor and control the compressor to stop if the compressor has a fault; wherein, the current state is a start state or an operation state;

[0033] A start time determination module, configured to determine a target start time based on the current state and current temperature parameters;

[0034] A restart control module, configured to control the compressor to restart after an interval of the target start time.

[0035] Further, the current temperature parameters at least include the current ambient temperature and the compartment temperature; and

[0036] The start time determination module is specifically configured to:

[0037] If the current state is the start state and the current ambient temperature is less than a first preset temperature, determine the target start time as a first preset time;

[0038] If the current state is the start state and the current ambient temperature is greater than or equal to the first preset temperature, determine the target start time as a second preset time;

[0039] If the current state is the operation state and the compartment temperature is less than or equal to a second preset temperature, determine the target start time as a third preset time;

[0040] If the current state is the operation state and the compartment temperature is greater than the second preset temperature, determine the target start time as a fourth preset time;

[0041] Wherein, the fourth preset time is greater than the third preset time.

[0042] Further, the device further includes:

[0043] The restart times determination module is configured to, after restarting the compressor at an interval of the target start time, when the compressor fails to restart and the number of restart failures is greater than or equal to a preset number, control the compressor to stop restarting, control the driving board of the compressor to flash a light, and control the display screen to display a drive fault code; when the compressor fails to restart and the number of restart failures is less than the preset number, control the driving board of the compressor to flash a light, and control the compressor to restart after a preset interval time.

[0044] In a third aspect, the present invention provides a refrigerator, including: a compressor and a controller, wherein the controller is configured to execute the method described in any one of the above to control the compressor.

[0045] The present invention adopts the above technical solutions and at least has the following beneficial effects:

[0046] By obtaining the operating state of the compressor, the present invention determines whether the compressor fails in the starting state or the operating state according to the operating state of the compressor, determines the target start time according to the current operating state and temperature parameters at which the compressor stops due to a fault, and controls the compressor to restart after an interval of the target start time, intelligently controls the compressor to automatically restart after a fault shutdown, thereby improving the success rate of the automatic restart of the compressor after a fault shutdown, making the start of the compressor more reliable, and further improving the intelligent level of the compressor and the self-recovery effect of the compressor fault.

[0047] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings without creative efforts based on these drawings.

[0049] Figure 1 is a flowchart of a control method for a refrigerator compressor shown in an embodiment of the present invention;

[0050] Figure 2 is a block diagram schematic diagram of a control device for a refrigerator compressor shown in an embodiment of the present invention;

[0051] Figure 3 is a block diagram schematic diagram of a refrigerator shown in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0052] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope protected by the present invention.

[0053] Please refer to Figure 1 , Figure 1 which is a flowchart of a control method for a refrigerator compressor shown in an embodiment of the present invention. As Figure 1 shown, the method includes the following steps:

[0054] Step S11: Obtain the operating state of the compressor;

[0055] Step S12: Determine whether the compressor has a fault according to the operating state of the compressor;

[0056] Step S13: If the compressor has a fault, determine the current state of the compressor and control the compressor to stop; wherein, the current state is the starting state or the operating state;

[0057] Step S14: Determine the target starting time based on the current state and the current temperature parameter;

[0058] Step S15: Control the compressor to restart after an interval of the target starting time.

[0059] It should be noted that, in this embodiment, the execution subject is the controller of the refrigerator.

[0060] In this embodiment, the method for determining whether the compressor has a fault according to the operating state of the compressor may specifically be: determining the states of each operating parameter of the compressor according to the operating state of the compressor; if the states of greater than or equal to a preset number of operating parameters are abnormal states, it is determined that the compressor has a fault; if the states of less than the preset number of operating parameters are abnormal states, it is determined that the compressor has no fault. The preset number may be 1.

[0061] Among them, the operating state may be a state set composed of the operating parameters of the compressor. Among them, each operating parameter may correspond to a normal operating state and an abnormal operating state. For each operating parameter, compare the operating parameter with the normal value range of the parameter corresponding to the operating parameter. If the operating parameter does not fall within the normal value range of the parameter, it is determined that the operating parameter corresponds to an abnormal operating state. If the operating parameter falls within the normal value range of the parameter, it is determined that the operating parameter corresponds to a normal operating state. If the operating state indicates that a preset number of operating parameters correspond to abnormal operating states, it means that the compressor has a fault.

[0062] For example, the operating parameters of the compressor include the operating sound, vibration frequency, intake and exhaust pressures, etc. during the operation of the compressor. According to the operating states corresponding to these operating parameters, it is determined whether the compressor has a fault. For example, when the operating sound of the compressor is too loud and the decibel value of the operating sound exceeds the preset normal value range, then at this time, the operating parameter of the operating sound of the compressor corresponds to an abnormal operating state, indicating that the compressor may have a fault.

[0063] It can be understood that in practice, it is found that after the compressor of the refrigerator fails, the general treatment method is to control the compressor to stop operating due to the fault. After stopping, the compressor is restarted at a fixed time. However, it is possible that after the fixed stop time, due to the fact that the suction end pressure and the discharge end pressure of the compressor fail to reach the balanced state, the compressor fails to restart, or there are still multiple attempts to restart that are unsuccessful, resulting in the compressor being locked. Therefore, the degree of intelligence of this control method of restarting according to a fixed time is relatively low, and the self-recovery effect of the compressor fault is not good.

[0064] In this embodiment, by obtaining the operating state of the compressor, according to the operating state of the compressor, it is determined whether the compressor fails in the starting state or the operating state. According to the current operating state and temperature parameters when the fault causes the stop, the target start time is determined, and the controller controls the compressor to restart after an interval of the target start time, intelligently controlling the automatic restart of the compressor after the fault causes the stop, so as to ensure the success rate of the automatic restart of the compressor after the fault causes the stop, make the start of the compressor more reliable, keep the refrigerator in the refrigeration operating state all the time, and thus improve the service life of the compressor.

[0065] In this embodiment, when it is found that the compressor has a fault, it should first be determined whether the compressor fails during the startup process or during the normal operation process. Failing during the startup process corresponds to the current state of the compressor being the starting state as described above. Failing during the normal operation process corresponds to the current state of the compressor being the operating state as described above. After determining the state in which the compressor fault occurs, according to the current stage and the current temperature parameters, the target start time of the compressor is determined. After the target start time of the compressor is determined, the controller controls the compressor to restart after an interval of this target start time. The target start time here is also to determine how long the compressor needs to be restarted at an interval.

[0066] By intelligently adjusting the restart time of the compressor according to the operating state and current temperature parameters when the compressor fails, the restart time of the compressor can be closer to the time required for the suction end pressure and discharge end pressure of the compressor to reach a balanced state, thereby improving the success rate of automatic restart after the compressor fails, making the startup of the compressor more reliable, and further improving the intelligence level of the compressor and the self-recovery effect of compressor failures.

[0067] Further, the current temperature parameters at least include the current ambient temperature and the compartment temperature; and

[0068] Determining a target startup time based on the current state and the current temperature parameters includes:

[0069] If the current state is the startup state and the current ambient temperature is less than the first preset temperature, then determine the target startup time as the first preset time;

[0070] If the current state is the startup state and the current ambient temperature is greater than or equal to the first preset temperature, then determine the target startup time as the second preset time;

[0071] If the current state is the running state and the compartment temperature is less than or equal to the second preset temperature, then determine the target startup time as the third preset time;

[0072] If the current state is the running state and the compartment temperature is greater than the second preset temperature, then determine the target startup time as the fourth preset time;

[0073] Wherein, the fourth preset time is greater than the third preset time.

[0074] It should be noted that the current temperature parameters at least include the current ambient temperature and the compartment temperature. The first preset temperature is a temperature value of the ambient temperature set in advance. Generally, the first preset temperature can be set to 25 degrees. The second preset temperature is a shutdown temperature point corresponding to the compartment temperature, and the shutdown temperature point is a temperature value set in advance. The first preset time, the second preset time, the third preset time, and the fourth preset time are all the restart times of the compressor, and are all constant values set in advance. Among them, the fourth preset time is greater than the third preset time. Because the suction and discharge pressures are different during the temperature pulling process and the stable operation process at the temperature point, the balancing time is also different. Generally, the value of the first preset time is between 3 and 8 seconds to prevent the suction end pressure from rising and affecting the startup; the value of the second preset time can be 5 minutes, the value of the third preset time can be 5 minutes, and the value of the fourth preset time can be 10 minutes. In this example, the specific values of each variable can be determined according to the experimental conditions of the actual model, and the specific values are not limited in this embodiment.

[0075] It can be understood that in the case where it is determined that the compressor fails during startup, if the current ambient temperature is less than the first preset temperature, the target startup time is determined to be the first preset time; if the current ambient temperature is greater than or equal to the first preset temperature, the target startup time is determined to be the second preset time;

[0076] In the case where it is determined that the compressor fails during normal operation, when the compartment temperature is less than or equal to the second preset temperature, the target startup time is determined to be the third preset time; when the compartment temperature is greater than the second preset temperature, the target startup time is determined to be the fourth preset time.

[0077] In this embodiment, by determining whether the compressor fails during startup or during operation, and then adjusting the restart time of the compressor according to the ambient temperature and the compartment temperature, the automatic restart of the compressor after a failure is intelligently controlled, avoiding untimely startup or startup under back pressure all the time, to ensure the success rate of the automatic restart of the compressor after a failure, making the startup of the compressor more reliable, keeping the refrigerator in a refrigeration operation state all the time, and thus improving the service life of the compressor.

[0078] Further, after controlling the compressor to restart after the target startup time interval, the method further includes:

[0079] When the compressor fails to restart and the number of restart failures is greater than or equal to the preset number, control the compressor to stop restarting, control the driving board of the compressor to flash a light, and control the display screen to display a drive fault code;

[0080] When the compressor fails to restart and the number of restart failures is less than the preset number, control the driving board of the compressor to flash a light, and control the compressor to restart after a preset interval time.

[0081] It should be noted that the preset number of times corresponds to the target start time, and the preset interval time corresponds to the target start time. The preset number of times corresponding to the first preset time is the first preset number of times, the preset number of times corresponding to the second preset time is the second preset number of times, the preset number of times corresponding to the third preset time is the third preset number of times, and the preset number of times corresponding to the fourth preset time is the fourth preset number of times; the preset interval time corresponding to the first preset time is the first preset interval time, the preset interval time corresponding to the second preset time is the second preset interval time, the preset interval time corresponding to the third preset time is the third preset interval time, and the preset interval time corresponding to the fourth preset time is the fourth preset interval time. Among them, the first preset number of times, the second preset number of times, the third preset number of times, and the fourth preset number of times are all constant values set in advance, and generally can take the value of 5 times. The first interval time, the second interval time, the third interval time, and the fourth interval time are all constant values set in advance. In this embodiment, the specific values of each variable can be taken according to the experimental conditions of the actual model, and the specific values are not limited in this embodiment.

[0082] It can be understood that after the compressor restarts according to the target start time, if the compressor restarts successfully, the compressor continues to run normally. If the compressor restart fails, when the number of restart failures is greater than or equal to the preset number of times, the controller controls the compressor to stop restarting, controls the drive board of the compressor to flash a light, indicating that the compressor has a fault, and displays a drive fault code on the display screen of the compressor. At this time, the compressor no longer restarts and remains in a shutdown state until power-off and then power-on again; when the number of restart failures is less than the preset number of times, controls the drive board of the compressor to flash a light, indicating that the compressor has a fault, and controls the compressor to restart after the preset interval time until the number of restart failures is greater than or equal to the preset number of times.

[0083] In this embodiment, by adjusting the restart time of the compressor according to the number of consecutive fault shutdowns after the compressor of the refrigerator restarts, the automatic restart of the compressor after a fault shutdown is intelligently controlled, avoiding untimely startup or startup under back pressure all the time, so as to ensure the success rate of the automatic restart of the compressor after a fault shutdown, make the startup of the compressor more reliable, keep the refrigerator in a refrigeration operation state all the time, and thus improve the service life of the compressor.

[0084] Further, before controlling the compressor to restart after the preset interval time, the method further includes:

[0085] Determine the preset interval time that matches the number of restart failures; where the more the number of restart failures, the longer the preset interval time.

[0086] It can be understood that the above preset interval time is related to the number of restart failures. The more the number of restart failures, the longer the preset interval time. Generally, after the compressor fails to restart, the next startup time is t minutes more than the previous startup time. Here, t = a × t1, where a is a coefficient value and t1 is a preset constant value. The value of a can be 1 and the value of t1 can be 5. This embodiment does not limit the specific values.

[0087] Further, the method further includes:

[0088] Obtain the continuous normal operation time of the compressor;

[0089] Judge whether the continuous normal operation time of the compressor reaches a preset operation time;

[0090] If the continuous normal operation time of the compressor reaches the preset operation time, clear the number of faults of the compressor and the continuous normal operation time of the compressor.

[0091] It can be understood that when the controller determines that the compressor is operating normally without faults, it obtains the number of hours of the continuous normal operation time of the compressor, judges whether the continuous normal operation time of the compressor reaches the preset operation time. If the continuous normal operation time of the compressor reaches the preset operation time, clear the number of faults of the compressor and the continuous normal operation time of the compressor, that is, the number of faults of the compressor is reset to zero, and the accumulated continuous normal operation time of the compressor is reset to zero. Here, the preset operation time is a preset constant value, and the value of the preset operation time can be 5 hours. This embodiment does not limit the specific values.

[0092] Further, the obtaining the operating state of the compressor includes:

[0093] If the continuous normal operation time of the compressor does not reach the preset operation time, obtain the operating state of the compressor.

[0094] It can be understood that if the continuous normal operation time of the compressor does not reach the preset operation time, it means that the compressor is in a normal operating state. Then, the controller re-obtains the operating state of the compressor for judgment.

[0095] It should be noted that the process of the control method of the present invention is illustrated by way of example:

[0096] In the first step, the refrigerator controller determines whether the compressor has a fault. If there is a fault, the controller controls the compressor to stop; if there is no fault, it determines whether the compressor has been continuously and normally operating for a preset operating time, where the preset operating time is defined as 5 hours. If it has been continuously and normally operating for 5 hours, the fault count of the compressor is cleared, and the continuous normal operating time of the compressor is cleared. If the continuous normal operating time is less than 5 hours, the first step is continued.

[0097] In the second step, it is determined whether the compressor has a fault during the startup process or during the operation process.

[0098] In the third step, if the compressor has a fault during the startup process, it is determined whether the current ambient temperature is less than the first preset temperature, where the first preset temperature is defined as 25 degrees.

[0099] In the fourth step, if the current ambient temperature is less than 25 degrees, it is determined that the compressor starts immediately after the first preset time for shutdown is completed, where the first preset time is defined as 5 seconds.

[0100] In the fifth step, it is determined whether the compressor fails to start. If the restart fails, it is determined whether the number of compressor restart failures exceeds the preset number of times, where the preset number of times is defined as 5 times. If the number of restart failures exceeds 5 times, the compressor stops restarting, the drive board of the compressor is controlled to flash a light to indicate the corresponding fault, and the display screen is controlled to report a drive fault code. The compressor does not restart until power is cut off and then reapplied; if the number of restart failures does not reach 5 times, the drive board of the compressor is controlled to flash a light to indicate the corresponding fault, and the next restart time of the compressor is t = a × t1 minutes more than the previous restart time, where a = 1 and t1 = 5 are defined. Then the controller determines whether the number of compressor restart failures exceeds the preset number of times. If the restart is successful, the first step is continued.

[0101] In the sixth step, if the current ambient temperature is greater than or equal to 25 degrees, it is determined that the compressor restarts after the second preset time for shutdown, where the second preset time is defined as 5 minutes; then the following is the same as the method in the fifth step, except that the preset number of times and the interval time can be the same or different, and no specific limitation is made in this embodiment.

[0102] In the sixth step, if the compressor has a fault during normal operation, it is determined whether the compartment temperature is less than or equal to the second preset temperature, that is, the shutdown temperature point.

[0103] In the seventh step, if the compartment temperature is less than or equal to the shutdown temperature point, it is determined that the compressor restarts after the third preset time for shutdown is completed, where the third preset time is defined as 5 minutes.

[0104] Step 8: Determine whether the compressor fails to start. If the restart fails, determine whether the number of compressor restart failures exceeds a preset number. Here, the preset number is defined as 5 times. If the number of restart failures exceeds 5 times, the compressor stops restarting, controls the drive board of the compressor to flash lights to indicate the corresponding fault, and controls the display screen to report a drive fault code. The compressor will not restart until power is cut off and then restored. If the number of restart failures does not reach 5 times, control the drive board of the compressor to flash lights to indicate the corresponding fault. The next restart time of the compressor is t = b × t2 minutes more than the previous restart time. Here, b = 1 and t2 = 5 are defined. Then, the controller determines whether the number of compressor restart failures exceeds the preset number. If the restart is successful, continue to execute Step 1.

[0105] Step 9: If the compartment temperature is greater than the shutdown temperature point, determine that the compressor restarts after the fourth preset time. Here, the fourth preset time is defined as 10 minutes. Then, the following method is the same as that in Step 8, except that the preset number and the interval time can be the same or different, and no specific limitation is made in this embodiment.

[0106] In this embodiment, by determining whether the refrigerator compressor fails to stop during startup or during operation, and then adjusting the restart time of the compressor according to the ambient temperature, the compartment temperature, and the number of consecutive fault shutdowns, etc., the automatic restart of the compressor after a fault shutdown is intelligently controlled, avoiding untimely startup or startup under back pressure all the time, to ensure the success rate of the automatic restart of the compressor after a fault shutdown, making the startup of the compressor more reliable, keeping the refrigerator in a refrigeration operation state all the time, and thus improving the service life of the compressor.

[0107] Please refer to Figure 2 , Figure 2 which is a block diagram schematic of a control device for a refrigerator compressor shown in an embodiment of the present invention. The control device 2 for the refrigerator compressor can be applied to the controller of the refrigerator to perform corresponding control on the compressor in the refrigerator. The device may include:

[0108] An acquisition module 21, configured to acquire the operating state of the compressor;

[0109] A fault judgment module 22, configured to judge whether the compressor fails according to the operating state of the compressor;

[0110] An operating state determination module 23, configured to determine the current state of the compressor and control the compressor to stop if the compressor fails. Wherein, the current state is a startup state or an operating state;

[0111] A startup time determination module 24, configured to determine a target startup time based on the current state and the current temperature parameters;

[0112] A restart control module 25, configured to control the compressor to restart after an interval of the target start time.

[0113] Further, the current temperature parameter at least includes the current ambient temperature and the compartment temperature; and

[0114] The start time determination module 24 is specifically configured to:

[0115] If the current state is the start state and the current ambient temperature is less than a first preset temperature, determine the target start time as a first preset time;

[0116] If the current state is the start state and the current ambient temperature is greater than or equal to the first preset temperature, determine the target start time as a second preset time;

[0117] If the current state is the running state and the compartment temperature is less than or equal to a second preset temperature, determine the target start time as a third preset time;

[0118] If the current state is the running state and the compartment temperature is greater than the second preset temperature, determine the target start time as a fourth preset time;

[0119] Wherein, the fourth preset time is greater than the third preset time.

[0120] Further, the device further includes:

[0121] A restart times judgment module, configured to, after controlling the compressor to restart after an interval of the target start time, when the compressor fails to restart and the number of restart failures is greater than or equal to a preset number, control the compressor to stop restarting, control the driving board of the compressor to flash a light, and control the display screen to display a driving fault code; when the compressor fails to restart and the number of restart failures is less than the preset number, control the driving board of the compressor to flash a light, and control the compressor to restart after a preset interval time.

[0122] Regarding the control device 2 of the refrigerator compressor in the above embodiments, the specific manners in which each module performs operations have been described in detail in the embodiments of the above related methods, and will not be elaborated herein.

[0123] Please refer to Figure 3 , Figure 3 which is a schematic block diagram of a refrigerator shown in an embodiment of the present invention. The refrigerator 3 includes: a compressor 31 and a controller 32, wherein the controller 32 is configured to execute the above method to control the compressor 31.

[0124] Regarding the refrigerator 3 in the above embodiments, the specific manner in which the compressor 31 executes the program in the controller 31 has been described in detail in the embodiments related to the method, and will not be elaborated here.

[0125] It can be understood that the same or similar parts in the above embodiments can be referred to each other, and the content not described in detail in some embodiments can be seen in the same or similar content in other embodiments.

[0126] It should be noted that in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "a plurality of", "many" is at least two.

[0127] It should be understood that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time; when an element is referred to as "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. In addition, the "connection" used here can include wireless connection; the phrase "and / or" includes any unit and all combinations of one or more related listed items.

[0128] Any process or method description shown in the flowchart or described in other ways herein can be understood as: representing a module, segment, or part of code including one or more executable instructions for implementing a specific logical function or process, and the scope of the preferred embodiments of the present invention includes additional implementations, where the functions can be executed in a manner not shown or discussed, including in a substantially simultaneous manner according to the functions involved or in a reverse order, which should be understood by those skilled in the technical field to which the embodiments of the present invention belong.

[0129] It should be understood that each part of the present invention can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one or a combination of the following well-known technologies in the art can be used: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application specific integrated circuits having appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0130] Those of ordinary skill in the art can understand that all or part of the steps carried out in the methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiments.

[0131] In addition, in each embodiment of the present invention, each functional unit can be integrated in a processing module, or each unit can exist physically alone, or two or more units can be integrated in a module. The above integrated module can be implemented in the form of hardware or in the form of a software functional module. When the above integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0132] The above-mentioned storage medium can be a read-only memory, a magnetic disk, an optical disk, etc.

[0133] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0134] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A control method for a refrigerator compressor, characterized in that, comprising: Obtaining the operating state of the compressor; Judging whether the compressor fails according to the operating state of the compressor; If the compressor fails, determining the current state of the compressor and controlling the compressor to stop; wherein, the current state is the starting state or the operating state; Determining a target starting time based on the current state and the current temperature parameter; Controlling the compressor to restart after an interval of the target starting time; The current temperature parameter at least includes the current ambient temperature and the compartment temperature; and Determining a target starting time based on the current state and the current temperature parameter, including: If the current state is the starting state and the current ambient temperature is less than a first preset temperature, determining the target starting time as a first preset time; If the current state is the starting state and the current ambient temperature is greater than or equal to the first preset temperature, determining the target starting time as a second preset time; If the current state is the operating state and the compartment temperature is less than or equal to a second preset temperature, determining the target starting time as a third preset time; If the current state is the operating state and the compartment temperature is greater than the second preset temperature, determining the target starting time as a fourth preset time; Wherein, the fourth preset time is greater than the third preset time.

2. The method according to claim 1, characterized in that, After controlling the compressor to restart after an interval of the target starting time, the method further includes: When the compressor fails to restart and the number of restart failures is greater than or equal to a preset number, controlling the compressor to stop restarting, controlling the drive board of the compressor to flash a light, and controlling the display screen to display a drive fault code; When the compressor fails to restart and the number of restart failures is less than the preset number, controlling the drive board of the compressor to flash a light, and controlling the compressor to restart after a preset interval time.

3. The method according to claim 2, characterized in that, Before controlling the compressor to restart after a preset interval time, the method further includes: Determining the preset interval time matching the number of restart failures; wherein, the more the number of restart failures, the longer the preset interval time.

4. The method according to claim 1, characterized in that, The method further includes: Obtaining the continuous normal operation time of the compressor; Judging whether the continuous normal operation time of the compressor reaches a preset operation time; If the continuous normal operation time of the compressor reaches the preset operation time, clearing the failure times of the compressor and the continuous normal operation time of the compressor.

5. The method according to claim 4, characterized in that, The obtaining the operating state of the compressor includes: If the continuous normal operation time of the compressor does not reach the preset operation time, obtaining the operating state of the compressor.

6. A control device for a refrigerator compressor, characterized in that, comprising: An obtaining module, configured to obtain the operating state of the compressor; A fault judgment module, configured to judge whether the compressor has a fault according to the operating state of the compressor; An operating state determination module, configured to, if the compressor has a fault, determine the current state of the compressor and control the compressor to stop; wherein, the current state is a start state or an operating state; A start time determination module, configured to determine a target start time based on the current state and the current temperature parameter; A restart control module, configured to control the compressor to restart after an interval of the target start time; The current temperature parameter at least includes the current ambient temperature and the compartment temperature; and The start time determination module is specifically configured to: If the current state is the start state and the current ambient temperature is less than a first preset temperature, determine that the target start time is a first preset time; If the current state is the start state and the current ambient temperature is greater than or equal to the first preset temperature, determine that the target start time is a second preset time; If the current state is the operating state and the compartment temperature is less than or equal to a second preset temperature, determine that the target start time is a third preset time; If the current state is the operating state and the compartment temperature is greater than the second preset temperature, determine that the target start time is a fourth preset time; Wherein, the fourth preset time is greater than the third preset time.

7. The device according to claim 6, characterized in that The device further includes: A restart times judgment module, configured to, after controlling the compressor to restart after an interval of the target start time, when the compressor fails to restart and the number of restart failures is greater than or equal to a preset number, control the compressor to stop restarting, control the drive board of the compressor to flash a light, and control the display screen to display a drive fault code; when the compressor fails to restart and the number of restart failures is less than the preset number, control the drive board of the compressor to flash a light, and control the compressor to restart after a preset interval time.

8. A refrigerator, characterized in that It includes a compressor and a controller, wherein the controller is configured to execute the method according to any one of claims 1-5 to control the compressor.

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