Refrigerator compressor control method and device and refrigerator

Abstract

The invention provides a refrigerator compressor control method and device and a refrigerator, and relates to the technical field of refrigerators.The method comprises the steps that the starting rate and the first rotating speed gear of a refrigerator compressor in a first period are obtained; determining a second rotating speed gear of the refrigerator compressor in a second period according to the starting rate by taking the first rotating speed gear as a reference, and controlling the refrigerator compressor to continuously operate at the second rotating speed gear; the second period is after the first period; and detecting the continuous operation duration of the refrigerator compressor in the second period, determining a third rotating speed gear of the refrigerator compressor in the second period according to the continuous operation duration by taking the second rotating speed gear as a reference, and controlling the refrigerator compressor to continuously operate at the third rotating speed gear, so that the rotating speed of the refrigerator compressor can be dynamically adjusted. Meanwhile, frequent starting and stopping of the refrigerator compressor can be avoided, abrasion of the refrigerator compressor is reduced, and the service life of the refrigerator compressor is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, and in particular to a refrigerator compressor control method, device and refrigerator. Background Art

[0002] During the refrigeration process of the refrigerator, the start and stop of the compressor are usually controlled according to the preset start temperature and stop temperature, and the compressor maintains a fixed speed during this process and cannot be dynamically adjusted. This method will result in a slow refrigeration speed of the refrigerator and an unsatisfactory actual refrigeration effect. At the same time, the frequent start and stop of the compressor will not only increase energy consumption, but also affect the service life of the compressor. Summary of the invention

[0003] In order to at least overcome the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide a refrigerator compressor control method, device and refrigerator.

[0004] In a first aspect, an embodiment of the present application provides a refrigerator compressor control method, the refrigerator compressor control method comprising:

[0005] Obtaining the startup rate and the first speed gear of the refrigerator compressor in the first cycle;

[0006] Determining a second speed gear of the refrigerator compressor in a second cycle based on the first speed gear and the startup rate, and controlling the refrigerator compressor to continue to operate at the second speed gear; the second cycle is located after the first cycle;

[0007] The continuous operation time of the refrigerator compressor in the second cycle is detected, and the third speed gear of the refrigerator compressor in the second cycle is determined based on the continuous operation time with the second speed gear as a reference, and the refrigerator compressor is controlled to continue to operate at the third speed gear.

[0008] In a possible implementation, the step of determining the second speed gear of the refrigerator compressor in the second cycle according to the startup rate based on the first speed gear, includes:

[0009] Detecting whether the startup rate of the refrigerator compressor in the first cycle is greater than a first preset threshold;

[0010] If the startup rate of the refrigerator compressor in the first cycle is not greater than the first preset threshold, reducing the speed gear of the refrigerator compressor on the basis of the first speed gear, thereby determining a second speed gear of the refrigerator compressor in the second cycle;

[0011] If the startup rate of the refrigerator compressor in the first cycle is greater than the first preset threshold, detecting whether the startup rate of the refrigerator compressor in the first cycle is greater than a second preset threshold; wherein the first preset threshold is less than the second preset threshold;

[0012] If the startup rate of the refrigerator compressor in the first cycle is greater than the first preset threshold value and not greater than the second preset threshold value, controlling the refrigerator compressor to continue running with the first speed gear as the second speed gear;

[0013] If the startup rate of the refrigerator compressor in the first cycle is greater than the second preset threshold, the speed gear of the refrigerator compressor is increased on the basis of the first speed gear, so as to determine the second speed gear of the refrigerator compressor in the second cycle.

[0014] In a possible implementation, the step of detecting the continuous operation time of the refrigerator compressor in the second cycle, and determining a third speed gear of the refrigerator compressor in the second cycle based on the continuous operation time and taking the second speed gear as a reference includes:

[0015] Detecting whether the continuous operation time of the refrigerator compressor at the second speed gear is greater than a first preset time;

[0016] If the continuous operation time of the refrigerator compressor at the second speed gear is greater than the first preset time, the speed gear of the refrigerator compressor is increased on the basis of the second speed gear, so as to determine the third speed gear of the refrigerator compressor in the second cycle.

[0017] In a possible implementation, the step of increasing the speed gear of the refrigerator compressor based on the second speed gear includes:

[0018] On the basis of the second speed gear, the speed gear of the refrigerator compressor is increased to a fourth speed gear, and whether the continuous operation time of the refrigerator compressor is greater than a second preset time;

[0019] If the continuous operation time of the refrigerator compressor is greater than the second preset time, the speed gear of the refrigerator compressor is increased on the basis of the fourth speed gear, so as to determine the third speed gear of the refrigerator compressor in the second cycle.

[0020] In a possible implementation, the step of obtaining the startup rate of the refrigerator compressor in the first cycle includes:

[0021] Obtaining the operating time and shutdown time of the refrigerator compressor in the first cycle;

[0022] The startup rate of the refrigerator compressor in the first cycle is determined according to the operation time and the shutdown time.

[0023] In a possible implementation, the step of obtaining the operation time and shutdown time of the refrigerator compressor in the first cycle includes:

[0024] Detect the refrigerator body temperature through the temperature sensor;

[0025] When the temperature detected by the temperature sensor is lower than a first preset temperature, the refrigerator compressor is controlled to stop, and the operation time of the refrigerator compressor in the first cycle is obtained;

[0026] When the temperature detected by the temperature sensor is greater than a second preset temperature, the refrigerator compressor is controlled to operate, and the shutdown time of the refrigerator compressor in the first cycle is obtained.

[0027] In a possible implementation, the startup rate X of the first cycle is calculated in the following way:

[0028]

[0029] Among them, T 1 Indicates the operating time of the refrigerator compressor in the first cycle; T 2 Indicates the downtime of the refrigerator compressor in the first cycle.

[0030] In a possible implementation, before the step of obtaining the startup rate and the first speed gear of the refrigerator compressor in the first cycle, the method further includes:

[0031] Controlling the refrigerator compressor to operate at a preset fixed speed gear;

[0032] When the refrigerator compressor finishes running at the preset fixed speed gear, detecting whether the temperature of the refrigerator body is lower than a first preset temperature;

[0033] If the temperature of the refrigerator body is not less than the first preset temperature, the speed gear of the refrigerator compressor is increased on the basis of the preset fixed speed gear, and the refrigerator compressor is controlled to continue running at the increased speed gear.

[0034] In a second aspect, an embodiment of the present application further provides a refrigerator compressor control device, the refrigerator compressor control device comprising:

[0035] An acquisition module, used for acquiring a startup rate and a first speed gear of a refrigerator compressor in a first cycle;

[0036] a first control module, configured to determine a second speed gear of the refrigerator compressor in a second cycle according to the startup rate based on the first speed gear, and control the refrigerator compressor to continue to operate at the second speed gear; the second cycle is located after the first cycle;

[0037] The second control module is used to detect the continuous operation time of the refrigerator compressor in the second cycle, determine the third speed gear of the refrigerator compressor in the second cycle based on the continuous operation time based on the second speed gear, and control the refrigerator compressor to continue running at the third speed gear.

[0038] In a third aspect, an embodiment of the present application further provides a refrigerator, which is controlled by the refrigerator compressor control method described in any of the above aspects.

[0039] Based on any one of the above aspects, the refrigerator compressor control method, device and refrigerator provided in the embodiments of the present application determine the second speed gear of the refrigerator compressor in the second cycle according to the startup rate of the first cycle, and determine the third speed gear of the refrigerator compressor in the second cycle according to the continuous operation time of the refrigerator compressor in the second cycle. This can realize dynamic adjustment of the speed of the refrigerator compressor, improve refrigeration efficiency, reduce energy consumption, and at the same time, avoid frequent start and stop of the refrigerator compressor, reduce the wear of the refrigerator compressor, extend its service life, and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0041] Figure 1 This is a flow chart of a refrigerator compressor control method provided in this embodiment;

[0042] Figure 2 A schematic diagram of sub-steps of step S200 provided in this embodiment;

[0043] Figure 3 A schematic diagram of sub-steps of step S300 provided in this embodiment;

[0044] Figure 4 A schematic diagram of sub-steps of step S320 provided in this embodiment;

[0045] Figure 5 A schematic diagram of sub-steps of step S100 provided in this embodiment;

[0046] Figure 6 A schematic diagram of sub-steps of step S110 provided in this embodiment;

[0047] Figure 7 The second flowchart of the refrigerator compressor control method provided in this embodiment;

[0048] Figure 8 A schematic diagram of the functional modules of the refrigerator compressor control device provided in this embodiment.

[0049] Icons: 830 - refrigerator compressor control device; 831 - acquisition module; 832 - first control module; 833 - second control module; DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0052] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0053] In the description of this application, it should be noted that the terms "upper", "lower", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0054] It should be noted that, in the absence of conflict, different features in the embodiments of the present application may be combined with each other.

[0055] In view of this, this embodiment provides a solution that can solve the above-mentioned problem, and the solution provided by this embodiment is described in detail below.

[0056] Please refer to Figure 1 , Figure 1 The flowchart of the refrigerator compressor control method provided by the present embodiment is illustrated. The method may include the following steps.

[0057] Step S100, obtaining the startup rate and the first speed gear of the refrigerator compressor in the first cycle.

[0058] The refrigerator compressor is operated periodically, and each cycle may include a compressor startup and a compressor shutdown. In this embodiment, the startup rate and the first speed gear of the refrigerator compressor in the first cycle may be obtained at the end of the first cycle.

[0059] Specifically, the lowest gear of the refrigerator compressor can be S 0 , the highest gear can be S max , where max>10. For example, the lowest gear of the refrigerator compressor S 0 The corresponding speed can be 1200rpm, and the highest gear is S max The corresponding rotation speed may be 3900 rpm.

[0060] Step S200, determining a second speed gear of the refrigerator compressor in a second cycle based on the startup rate and taking the first speed gear as a reference, and controlling the refrigerator compressor to continue running at the second speed gear; the second cycle is located after the first cycle.

[0061] In this embodiment, the second speed gear of the refrigerator compressor in the second cycle can be determined according to the startup rate obtained in step S100, so as to dynamically adjust the speed of the compressor. Specifically, the speed of the refrigerator compressor can be increased or decreased on the basis of the first speed gear to obtain the second speed gear of the refrigerator compressor in the second cycle. The first cycle and the second cycle are two consecutive adjacent cycles and the second cycle is located after the first cycle. The second speed gear may refer to the initial speed gear of the refrigerator compressor in the second cycle.

[0062] Step S300, detecting the continuous operation time of the refrigerator compressor in the second cycle, determining the third speed gear of the refrigerator compressor in the second cycle based on the continuous operation time and taking the second speed gear as a reference, and controlling the refrigerator compressor to continue to run at the third speed gear.

[0063] In this embodiment, after the refrigerator compressor starts to run at the second speed gear, the continuous operation time of the refrigerator compressor can be detected, and the speed of the refrigerator compressor can be adjusted according to the continuous operation time, so as to obtain the third speed gear of the refrigerator compressor in the second cycle. The continuous operation time may refer to the time length of the refrigerator compressor running uninterruptedly in the second cycle.

[0064] It can be seen that based on the above design, the refrigerator compressor control method provided in the embodiment of the present application determines the second speed gear of the refrigerator compressor in the second cycle according to the start-up rate of the first cycle, and determines the third speed gear of the refrigerator compressor in the second cycle according to the continuous operation time of the refrigerator compressor in the second cycle. This can realize dynamic adjustment of the speed of the refrigerator compressor, improve refrigeration efficiency, reduce energy consumption, and at the same time, avoid frequent start and stop of the refrigerator compressor, reduce the wear of the refrigerator compressor, extend its service life, and reduce maintenance costs.

[0065] It should be noted that the refrigerator compressor control method provided in the embodiment of the present application can be used not only in refrigerators, but also in other refrigeration devices such as freezers.

[0066] In one possible implementation, see Figure 2 , step S200 may include the following sub-steps.

[0067] Step S210, detecting whether the startup rate of the refrigerator compressor in the first cycle is greater than a first preset threshold.

[0068] Step S220, if the startup rate of the refrigerator compressor in the first cycle is not greater than the first preset threshold, the speed gear of the refrigerator compressor is reduced on the basis of the first speed gear, so as to determine the second speed gear of the refrigerator compressor in the second cycle.

[0069] Step S230, if the startup rate of the refrigerator compressor in the first cycle is greater than the first preset threshold, detect whether the startup rate of the refrigerator compressor in the first cycle is greater than the second preset threshold; wherein the first preset threshold is less than the second preset threshold.

[0070] Step S240: If the startup rate of the refrigerator compressor in the first cycle is greater than the first preset threshold and not greater than the second preset threshold, the refrigerator compressor is controlled to continue running with the first speed gear as the second speed gear.

[0071] Step S250, if the startup rate of the refrigerator compressor in the first cycle is greater than the second preset threshold, the speed gear of the refrigerator compressor is increased on the basis of the first speed gear, so as to determine the second speed gear of the refrigerator compressor in the second cycle.

[0072] In this embodiment, after obtaining the startup rate of the refrigerator compressor in the first cycle, the speed of the refrigerator compressor can be adjusted based on the first speed gear by the first preset threshold and the second preset threshold. Specifically, it can be determined whether the startup rate is greater than the first preset threshold. If the startup rate is less than or equal to the first preset threshold, the speed gear of the refrigerator compressor is controlled to be reduced by a based on the first speed gear. 1 The speed gear after the reduction is used as the second speed gear, and the refrigerator compressor is controlled to operate at the second speed gear. If the power-on rate is greater than the first preset threshold, it is further determined whether the power-on rate is greater than the second preset threshold. When the power-on rate is greater than the first preset threshold and less than or equal to the second preset threshold, the speed gear of the refrigerator compressor may not be adjusted, and the first speed gear is directly used as the second speed gear to control the refrigerator compressor to operate at the second speed gear. When the power-on rate is greater than the second preset threshold, the speed gear of the refrigerator compressor may be increased by a on the basis of the first speed gear. 2 The increased speed gear is used as the second speed gear, and the refrigerator compressor is controlled to run at the second speed gear.

[0073] In one possible implementation, see Figure 3 , step S300 may include the following sub-steps.

[0074] Step S310, detecting whether the continuous operation time of the refrigerator compressor at the second speed gear is greater than a first preset time.

[0075] Step S320: If the continuous operation time of the refrigerator compressor at the second speed gear is greater than the first preset time, the speed gear of the refrigerator compressor is increased on the basis of the second speed gear, so as to determine the third speed gear of the refrigerator compressor in the second cycle.

[0076] In this embodiment, when the refrigerator compressor is operating at the second speed gear, the continuous operation time at the second speed gear can be detected, and it can be determined whether the continuous operation time is greater than the first preset time. When the continuous operation time is less than or equal to the first preset time, the speed gear of the refrigerator compressor can be kept unchanged. When the continuous operation time is greater than the first preset time, the speed gear of the refrigerator compressor can be controlled to increase on the basis of the second speed gear, thereby reducing the operation time of the refrigerator compressor in the second cycle, avoiding the refrigerator compressor running for too long at the second speed gear and affecting the refrigeration effect of the refrigerator, and also extending the service life of the refrigerator compressor.

[0077] Specifically, if the refrigerator compressor stops when the continuous operation time at the second speed gear is less than or equal to the first preset time, the second speed gear can be used as the third speed gear of the refrigerator compressor in the second cycle. If the refrigerator compressor stops when the continuous operation time at the second speed gear is greater than the first preset time, the increased speed gear is used as the third speed gear of the refrigerator compressor in the second cycle, and the refrigerator compressor is controlled to operate at the third speed gear until the refrigerator compressor stops.

[0078] In one possible implementation, see Figure 4 , step S320 may include the following sub-steps.

[0079] Step S321, increasing the speed gear of the refrigerator compressor to a fourth speed gear on the basis of the second speed gear, and detecting whether the continuous operation time of the refrigerator compressor is greater than a second preset time.

[0080] Step S322: if the continuous operation time of the refrigerator compressor is greater than the second preset time, the speed gear of the refrigerator compressor is increased on the basis of the fourth speed gear, so as to determine the third speed gear of the refrigerator compressor in the second cycle.

[0081] In this embodiment, when the continuous operation time of the refrigerator compressor is greater than the first preset time, the speed of the refrigerator compressor can be adjusted once or multiple times. Specifically, when the continuous operation time is greater than the first preset time, it can be determined whether the continuous operation time is greater than the second preset time. When the continuous operation time is greater than the first preset time and less than or equal to the second preset time, the speed gear of the refrigerator compressor can be controlled to increase by b on the basis of the second speed gear. 1 When the continuous operation time is longer than the second preset time, the speed gear of the refrigerator compressor can be controlled to increase to the highest speed gear S based on the fourth speed gear. max .

[0082] If the refrigerator compressor stops when the continuous operation is longer than the first preset time and less than or equal to the second preset time, the fourth speed gear can be used as the third speed gear of the refrigerator compressor in the second cycle. If the refrigerator compressor stops when the continuous operation is longer than the second preset time, the highest speed gear S max As the third speed gear of the refrigerator compressor in the second cycle.

[0083] Among them, the continuous operation duration may refer to the duration of the refrigerator compressor running uninterruptedly in the second cycle at the current time. For example, when the continuous operation duration is less than or equal to the first preset duration, the continuous operation duration may refer to the duration of the refrigerator compressor running uninterruptedly at the second speed gear. When the continuous operation duration is greater than the first preset duration and less than or equal to the second preset duration, the continuous operation duration may refer to the sum of the duration of the refrigerator compressor running uninterruptedly at the second speed gear and the duration of the refrigerator compressor running uninterruptedly at the fourth speed gear. When the continuous operation duration is greater than the second preset duration, the continuous operation duration may refer to the sum of the duration of the refrigerator compressor running uninterruptedly at the second speed gear, the duration of the refrigerator compressor running uninterruptedly at the fourth speed gear, and the duration of the refrigerator compressor running uninterruptedly at the highest speed gear.

[0084] In one possible implementation, see Figure 5 , step S100 may include the following sub-steps.

[0085] Step S110, obtaining the operation time and shutdown time of the refrigerator compressor in the first cycle.

[0086] Step S120, determining the startup rate of the refrigerator compressor in the first cycle according to the operation time and the shutdown time.

[0087] In this embodiment, the operating time and the downtime of the refrigerator compressor in the first cycle can be obtained, and the startup rate can be calculated according to the operating time and the downtime.

[0088] Specifically, the startup rate X of the first cycle can be calculated as follows:

[0089]

[0090] Among them, T 1 It can represent the running time of the refrigerator compressor in the first cycle; T 2 It can indicate the downtime duration of the refrigerator compressor in the first cycle.

[0091] Running time T 1 It can refer to the duration of continuous operation of the refrigerator compressor and the shutdown time T 2It can refer to the length of time that the refrigerator compressor is in a continuous stop state. When the inverter drives the refrigerator compressor to run, the refrigerator compressor is in a continuous running state, and when the inverter does not drive the refrigerator compressor to run, the refrigerator compressor is in a continuous stop state.

[0092] In one possible implementation, see Figure 6 , step S110 may include the following sub-steps.

[0093] Step S111, detecting the temperature of the refrigerator body through a temperature sensor.

[0094] Step S112, when the temperature detected by the temperature sensor is lower than a first preset temperature, the refrigerator compressor is controlled to stop, and the operating time of the refrigerator compressor in the first cycle is obtained.

[0095] Step S113, when the temperature detected by the temperature sensor is greater than a second preset temperature, the refrigerator compressor is controlled to operate, and the shutdown time of the refrigerator compressor in the first cycle is obtained.

[0096] In this embodiment, during the operation of the refrigerator compressor, the temperature of the refrigerator body can be detected by a temperature sensor. If the temperature detected by the temperature sensor is lower than the first preset temperature, the frequency converter does not drive the refrigerator compressor to operate. At this time, the refrigerator compressor is shut down, and the operating time of the refrigerator compressor in the first cycle can be obtained. During the shutdown of the refrigerator compressor, the temperature of the refrigerator body can be detected by a temperature sensor. If the temperature detected by the temperature sensor is higher than the second preset temperature, the frequency converter drives the refrigerator compressor to operate. At this time, the refrigerator compressor is turned on, and the shutdown time of the refrigerator compressor in the first cycle can be obtained. Among them, the first preset temperature can refer to the preset shutdown temperature, and the second preset temperature can refer to the preset startup temperature.

[0097] In one possible implementation, see Figure 7 Before obtaining the startup rate and the first speed gear of the refrigerator compressor in the first cycle, the refrigerator compressor control method may further include the following steps.

[0098] Step S410, controlling the refrigerator compressor to operate at a preset fixed speed gear.

[0099] Step S420, when the refrigerator compressor finishes running at the preset fixed speed gear, it is detected whether the temperature of the refrigerator body is less than the first preset temperature.

[0100] Step S430, if the temperature of the refrigerator body is not less than the first preset temperature, the speed gear of the refrigerator compressor is increased on the basis of the preset fixed speed gear, and the refrigerator compressor is controlled to continue to run at the increased speed gear.

[0101] In this embodiment, when the refrigerator obtains the initial power-on signal, the refrigerator compressor can be controlled to rotate at a preset fixed speed gear S i The refrigerator is operated, and after the preset time, the temperature sensor is used to detect whether the temperature of the refrigerator body is lower than the first preset temperature. If the temperature of the refrigerator body is lower than the first preset temperature, the compressor is controlled to stop and the power-on procedure is exited. If the temperature of the refrigerator body is not lower than the first preset temperature, the speed gear of the refrigerator compressor is increased to S i+2 , and continue to run at this speed gear until the temperature of the refrigerator body is lower than the first preset temperature. When the temperature of the refrigerator body is lower than the first preset temperature, the compressor is controlled to stop and the power-on program is exited.

[0102] Among them, the preset fixed speed gear S i It can be the middle gear of the refrigerator compressor speed gear. The first preset temperature can refer to a preset shutdown temperature.

[0103] After exiting the power-on procedure, the refrigerator compressor enters the first operation cycle. In the first operation cycle, the refrigerator compressor operates at a preset fixed speed gear S i Run and continue running at this speed until it stops.

[0104] Please refer to Figure 8 The present application also provides a refrigerator compressor control device, which may include multiple functional modules that can be stored in software form. Functionally, the refrigerator compressor control device 830 may include an acquisition module 831, a first control module 832, and a second control module 833. Among them:

[0105] The acquisition module 831 may be used to acquire the startup rate and the first speed gear of the refrigerator compressor in the first cycle.

[0106] In this embodiment, the acquisition module 831 can be used to execute Figure 1 As shown in step S100, for the specific description of the acquisition module 831, reference may be made to the description of the step S100.

[0107] The first control module 832 can be used to determine the second speed gear of the refrigerator compressor in the second cycle based on the startup rate and the first speed gear, and control the refrigerator compressor to continue running at the second speed gear; the second cycle is located after the first cycle.

[0108] In this embodiment, the first control module 832 can be used to execute Figure 1As shown in step S200, for a detailed description of the first control module 832, reference may be made to the description of step S200.

[0109] The second control module 833 can be used to detect the continuous operation time of the refrigerator compressor in the second cycle, determine the third speed gear of the refrigerator compressor in the second cycle based on the continuous operation time based on the second speed gear, and control the refrigerator compressor to continue running at the third speed gear.

[0110] In this embodiment, the second control module 833 can be used to execute Figure 1 As shown in step S300, for the detailed description of the second control module 833, reference may be made to the description of step S300.

[0111] An embodiment of the present application also provides a refrigerator, which can be controlled by the refrigerator compressor control method provided in this embodiment.

[0112] In summary, the present embodiment provides a refrigerator compressor control method, device and refrigerator, which determines the second speed gear of the refrigerator compressor in the second cycle according to the startup rate of the first cycle, and determines the third speed gear of the refrigerator compressor in the second cycle according to the continuous operation time of the refrigerator compressor in the second cycle. The refrigerator compressor speed can be dynamically adjusted, and the refrigeration efficiency can be improved and the energy consumption can be reduced. At the same time, the refrigerator compressor can be prevented from being started and stopped frequently, the wear of the refrigerator compressor can be reduced, its service life can be extended, and the maintenance cost can be reduced.

[0113] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0114] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A refrigerator compressor control method, characterized in that: The method comprises: Obtaining the startup rate and the first speed gear of the refrigerator compressor in the first cycle; Determining a second speed gear of the refrigerator compressor in a second cycle based on the first speed gear and the startup rate, and controlling the refrigerator compressor to continue to operate at the second speed gear; the second cycle is located after the first cycle; The continuous operation time of the refrigerator compressor in the second cycle is detected, and the third speed gear of the refrigerator compressor in the second cycle is determined based on the continuous operation time with the second speed gear as a reference, and the refrigerator compressor is controlled to continue to operate at the third speed gear.

2. The refrigerator compressor control method according to claim 1, characterized in that: The step of determining the second speed gear of the refrigerator compressor in the second cycle according to the startup rate based on the first speed gear, comprises: Detecting whether the startup rate of the refrigerator compressor in the first cycle is greater than a first preset threshold; If the startup rate of the refrigerator compressor in the first cycle is not greater than the first preset threshold, reducing the speed gear of the refrigerator compressor on the basis of the first speed gear, thereby determining a second speed gear of the refrigerator compressor in the second cycle; If the startup rate of the refrigerator compressor in the first cycle is greater than the first preset threshold, detecting whether the startup rate of the refrigerator compressor in the first cycle is greater than a second preset threshold; wherein the first preset threshold is less than the second preset threshold; If the startup rate of the refrigerator compressor in the first cycle is greater than the first preset threshold value and not greater than the second preset threshold value, controlling the refrigerator compressor to continue running with the first speed gear as the second speed gear; If the startup rate of the refrigerator compressor in the first cycle is greater than the second preset threshold, the speed gear of the refrigerator compressor is increased on the basis of the first speed gear, so as to determine the second speed gear of the refrigerator compressor in the second cycle.

3. The refrigerator compressor control method according to claim 1, characterized in that: The step of detecting the continuous operation time of the refrigerator compressor in the second cycle, and determining the third speed gear of the refrigerator compressor in the second cycle based on the continuous operation time and taking the second speed gear as a reference includes: Detecting whether the continuous operation time of the refrigerator compressor at the second speed gear is greater than a first preset time; If the continuous operation time of the refrigerator compressor at the second speed gear is greater than the first preset time, the speed gear of the refrigerator compressor is increased on the basis of the second speed gear, so as to determine the third speed gear of the refrigerator compressor in the second cycle.

4. The refrigerator compressor control method according to claim 3, characterized in that: The step of increasing the speed gear of the refrigerator compressor on the basis of the second speed gear comprises: On the basis of the second speed gear, the speed gear of the refrigerator compressor is increased to a fourth speed gear, and whether the continuous operation time of the refrigerator compressor is greater than a second preset time; If the continuous operation time of the refrigerator compressor is greater than the second preset time, the speed gear of the refrigerator compressor is increased on the basis of the fourth speed gear, so as to determine the third speed gear of the refrigerator compressor in the second cycle.

5. The refrigerator compressor control method according to claim 1, characterized in that: The step of obtaining the startup rate of the refrigerator compressor in the first cycle includes: Obtaining the operating time and shutdown time of the refrigerator compressor in the first cycle; The startup rate of the refrigerator compressor in the first cycle is determined according to the operation time and the shutdown time.

6. The refrigerator compressor control method according to claim 5, characterized in that: The step of obtaining the operation time and shutdown time of the refrigerator compressor in the first cycle includes: Detect the refrigerator body temperature through the temperature sensor; When the temperature detected by the temperature sensor is lower than a first preset temperature, the refrigerator compressor is controlled to stop, and the operation time of the refrigerator compressor in the first cycle is obtained; When the temperature detected by the temperature sensor is greater than a second preset temperature, the refrigerator compressor is controlled to operate, and the shutdown time of the refrigerator compressor in the first cycle is obtained.

7. The refrigerator compressor control method according to claim 5, characterized in that: The startup rate X of the first cycle is calculated by the following method: Wherein, T1 represents the operation time of the refrigerator compressor in the first cycle; T2 represents the shutdown time of the refrigerator compressor in the first cycle.

8. The refrigerator compressor control method according to claim 1, characterized in that: Before the step of obtaining the startup rate and the first speed gear of the refrigerator compressor in the first cycle, the method further includes: Controlling the refrigerator compressor to operate at a preset fixed speed gear; When the refrigerator compressor finishes running at the preset fixed speed gear, detecting whether the temperature of the refrigerator body is lower than a first preset temperature; If the temperature of the refrigerator body is not less than the first preset temperature, the speed gear of the refrigerator compressor is increased on the basis of the preset fixed speed gear, and the refrigerator compressor is controlled to continue running at the increased speed gear.

9. A refrigerator compressor control device, characterized in that: include: An acquisition module, used for acquiring a startup rate and a first speed gear of a refrigerator compressor in a first cycle; a first control module, configured to determine a second speed gear of the refrigerator compressor in a second cycle according to the startup rate based on the first speed gear, and control the refrigerator compressor to continue to operate at the second speed gear; the second cycle is located after the first cycle; The second control module is used to detect the continuous operation time of the refrigerator compressor in the second cycle, determine the third speed gear of the refrigerator compressor in the second cycle based on the continuous operation time based on the second speed gear, and control the refrigerator compressor to continue running at the third speed gear.

10. A refrigerator, characterized in that: The refrigerator is controlled by the refrigerator compressor control method according to any one of claims 1-8.

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