Control method and device for condensation prevention of middle beam of refrigerator, refrigerator and storage medium

Abstract

The invention relates to the technical field of refrigeration equipment, and discloses a refrigerator which comprises a compressor, an air inlet pipe, an air outlet pipe, an air inlet pipe and a control device. An oil separator disposed in the exhaust line and provided with a bypass port; the bypass pipeline is arranged between the middle beam anti-dew pipe and the bypass port; one end of the middle beam anti-dew pipe is connected with the bypass pipeline, and the other end is connected with the air suction pipeline; a high-temperature and high-pressure refrigerant passes through the exhaust port, then enters the oil separator through the exhaust pipeline and is converted into a low-pressure and high-temperature refrigerant under the throttling and pressure reducing action of the first throttling element, and the low-pressure and high-temperature refrigerant flows through the middle beam anti-condensation pipe to be subjected to condensation elimination. The reliability of anti-condensation treatment of the middle beam can be improved. The invention further discloses a control method and device for condensation prevention of the middle beam of the refrigerator and a storage medium.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, for example, to a control method and device for preventing condensation in a center beam of a refrigerator, a refrigerator, and a storage medium. Background Art

[0002] Currently, refrigerators include multiple freezing and refrigerating compartments. Figure 1 As shown, the refrigerator includes a refrigerating chamber 02, a freezing chamber 03, a freezer chamber 04, a middle beam 05, and a dew-removing pipe 06. The refrigerating chamber 02 is located at the upper part of the freezer chamber 03 and the freezer chamber 04. The middle beam 05 is located between the freezer chamber 03 and the freezer chamber 04, and is used to separate the freezer chamber 03 and the freezer chamber 04. When the doors of the freezer chamber 03 and the freezer chamber 04 are closed, they are in close contact with the middle beam 05 to prevent cold leakage. However, the parts where the doors of the freezer chamber 03 and the freezer chamber 04 contact with the middle beam 05 may leak cold due to errors in the production stage, resulting in loose contact, thereby causing condensation on the middle beam 05.

[0003] How to prevent condensation from forming on the center beam due to cold leakage? The related technology discloses a refrigerator, including a compressor, a condenser, an evaporator, a capillary tube and a de-condensation pipe 06. The de-condensation pipe 06 is located near the center beam 05 and the refrigerating chamber 02, the freezing chamber 03 and the contact part between the freezing chamber 03 and the door of the refrigerator. The de-condensation pipe 06 can be located at the front end or the end of the condenser and connected to the condenser. The related technology can use the heat emitted by the refrigerant in the de-condensation pipe during condensation to eliminate the condensation formed on the center beam.

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

[0005] When the dew-removing pipe is installed at the front end of the condenser, the temperature of the refrigerant flowing into the condenser is relatively high, but eliminating the condensation on the center beam does not require high-temperature refrigerant. When the dew-removing pipe is installed at the end of the condenser, the temperature of the refrigerant flowing out of the condenser is relatively low, and when it is treated with anti-condensation, there is a problem of poor condensation elimination effect. Since the temperature of the refrigerant flowing into the condenser and the refrigerant flowing out of the condenser cannot be effectively controlled, the reliability of installing the dew-removing pipe at the front end or end of the condenser for anti-condensation treatment of the center beam is poor.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide a control method, a device, a refrigerator and a storage medium for preventing condensation on the center beam of a refrigerator, so as to improve the reliability of the anti-condensation treatment on the center beam.

[0009] In some embodiments, the refrigerator includes: a compressor, whose exhaust port is connected to the exhaust pipeline, and whose intake port is connected to the intake pipeline; an oil separator, which is arranged in the exhaust pipeline and has a bypass port; the bypass pipeline is arranged between the center beam anti-condensation pipe and the bypass port; the center beam anti-condensation pipe, one end of which is connected to the bypass pipeline, and the other end is connected to the intake pipeline; wherein, the high-temperature and high-pressure refrigerant enters the oil separator through the exhaust pipeline after passing through the exhaust port, and is converted into a low-pressure and high-temperature refrigerant under the throttling and pressure reduction action of the first throttling element, and the low-pressure and high-temperature refrigerant flows through the center beam anti-condensation pipe to eliminate condensation.

[0010] In some embodiments, the compressor includes a frequency converter, and the operating gear of the frequency converter is positively correlated with the operating frequency of the compressor.

[0011] In some embodiments, the method includes: obtaining the startup rate of the compressor; adjusting the reference operating gear of the inverter according to the startup rate of the compressor; wherein the startup rate is negatively correlated with the reference operating gear.

[0012] In some embodiments, the device includes: a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned control method for preventing condensation on the center beam of a refrigerator when running the program instructions.

[0013] In some embodiments, the refrigerator includes: a compressor, whose exhaust port is connected to the exhaust pipeline, and whose intake port is connected to the intake pipeline; an oil separator, which is arranged in the exhaust pipeline and has a bypass port; a bypass pipeline, which is arranged between the center beam anti-condensation pipe and the bypass port; the center beam anti-condensation pipe, one end of which is connected to the bypass pipeline, and the other end of which is connected to the intake pipeline; a temperature sensor, which is arranged at the pipe end of the first throttling element away from the bypass port, and is used to detect the terminal temperature value of the first throttling element; an electronic control device, which is electrically connected to both the compressor and the temperature sensor, and a control device for anti-condensation of the center beam of the refrigerator as mentioned above, which is installed in the electronic control device.

[0014] In some embodiments, the storage medium stores program instructions, and when the program instructions are run, the program instructions execute the control method for preventing condensation in the center beam of the refrigerator as described above.

[0015] The control method, device, refrigerator and storage medium for preventing condensation in the middle beam of a refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:

[0016] After passing through the exhaust port of the compressor, the high-temperature and high-pressure refrigerant enters the oil separator through the exhaust pipeline. After the high-temperature and high-pressure refrigerant is converted into low-pressure and high-temperature refrigerant under the throttling and pressure-reducing effect of the first throttling element, the low-pressure and high-temperature refrigerant flows through the middle beam anti-condensation pipe to eliminate the condensation on the middle beam. In this way, the embodiment of the present disclosure can appropriately cool down and regulate the temperature of the high-temperature and high-pressure refrigerant flowing out of the exhaust port through the throttling and pressure-reducing effect of the first throttling element, which is more conducive to the corresponding anti-condensation treatment of the middle beam anti-condensation pipe and improves the reliability of the middle beam anti-condensation control.

[0017] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0019] Figure 1 is a structural schematic diagram of a refrigerator provided by the related technology provided by an embodiment of the present disclosure;

[0020] Figure 2 is a structural schematic diagram of a refrigerator provided by an embodiment of the present disclosure;

[0021] Figure 3 is a schematic diagram of a control method for preventing condensation in a refrigerator center beam provided by an embodiment of the present disclosure;

[0022] Figure 4 is a schematic diagram of another control method for preventing condensation in a refrigerator center beam provided by an embodiment of the present disclosure;

[0023] Figure 5 is a schematic diagram of a control device for preventing condensation in a middle beam of a refrigerator according to an embodiment of the present disclosure;

[0024] Figure 6 It is a schematic diagram of the structure of another refrigerator provided in an embodiment of the present disclosure.

[0025] Reference numerals:

[0026] 100: Refrigerator door;

[0027] 10: compressor; 101: exhaust pipe; 102: suction pipe;

[0028] 20: oil separator; 20a: bypass port;

[0029] 30: condenser; 40: evaporator;

[0030] 51: first throttling element, 52: second throttling element; 51a: temperature sensor;

[0031] 60: middle beam anti-dew pipe; 70: electronic control device;

[0032] 80: Dry filter; 90: Bypass line;

[0033] 300: Control device for preventing condensation in the middle beam of a refrigerator;

[0034] 400: processor; 401: memory; 402: communication interface; 403: bus;

[0035] 600: Freezer. DETAILED DESCRIPTION

[0036] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0037] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0038] Unless otherwise stated, the term "plurality" means two or more.

[0039] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0040] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0041] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0042] In order to prevent condensation from forming on the middle beam due to cold leakage, the related art discloses a refrigerator, including a compressor, a condenser, an evaporator, a capillary tube and a de-condensation pipe 06. The de-condensation pipe 06 is located near the middle beam 05 and the refrigerating chamber 02, the freezing chamber 03 and the contact part between the freezing chamber 03 and the door of the refrigerator. The de-condensation pipe 06 can be located at the front end or the end of the condenser and connected to the condenser. The related art can use the heat emitted by the refrigerant in the de-condensation pipe during condensation to eliminate the condensation formed on the middle beam.

[0043] When the middle beam anti-condensation pipe is connected to the front end of the condenser, the refrigerant temperature is high, but anti-condensation does not require such a high temperature, resulting in energy waste. When the middle beam anti-condensation pipe is connected to the end of the condenser, the refrigerant temperature is low and the anti-condensation effect is not obvious. If the middle beam anti-condensation pipe is connected to the front or end of the condenser, the refrigerant temperature cannot be effectively controlled.

[0044] Combination Figure 2 As shown, an embodiment of the present disclosure provides a refrigerator, including a refrigerator door body 100, a compressor 10, an oil separator 20, a condenser 30, an evaporator 40, a bypass line 90 and a center beam anti-condensation pipe 60. The compressor 10, its exhaust port is connected to the exhaust line 101, and its suction port is connected to the suction line 102. One end of the condenser 30 is connected to one end of the evaporator 40, and the other end is connected to the oil separator 20. The other end of the evaporator 40 is connected to the suction line 102 of the compressor. The oil separator 20 is arranged in the exhaust line 101 and is provided with a bypass port 20a. The bypass line 90 is arranged between the center beam anti-condensation pipe 60 and the bypass port 20a. The center beam anti-condensation pipe 60 is installed at the center beam of the refrigerator door body 100. One end of the center beam anti-condensation pipe 60 is connected to the bypass line 90, and the other end is connected to the suction line 102. The high-temperature and high-pressure refrigerant enters the oil separator 20 through the exhaust port and the exhaust pipe 101, and is converted into a low-pressure and high-temperature refrigerant under the throttling and pressure-reducing action of the first throttling element 51. The low-pressure and high-temperature refrigerant flows through the center beam anti-condensation pipe 60 to eliminate condensation on the center beam.

[0045] With the refrigerator provided by the embodiment of the present disclosure, the high-temperature and high-pressure refrigerant enters the oil separator 20 through the exhaust port of the compressor through the exhaust pipe 101. After the high-temperature and high-pressure refrigerant is converted into a low-pressure and high-temperature refrigerant under the throttling and pressure-reducing effect of the first throttling element 51, the low-pressure and high-temperature refrigerant flows through the middle beam anti-condensation pipe 60 to eliminate the condensation on the middle beam. In this way, the embodiment of the present disclosure can appropriately cool down and control the temperature of the high-temperature and high-pressure refrigerant flowing out of the exhaust port through the throttling and pressure-reducing effect of the first throttling element, which is more conducive to the corresponding anti-condensation treatment of the middle beam anti-condensation pipe 60, and improves the reliability of the middle beam anti-condensation control.

[0046] At the same time, the high-temperature and high-pressure refrigerant is in a gaseous state. When the refrigerant flows through the oil separator 20, the oil mixed in the high-temperature and high-pressure refrigerant is separated by the oil separator 20 and flows into the compressor 10 through the middle beam anti-condensation pipe 60 and the suction pipe 102 in sequence under the action of the low-pressure and high-temperature refrigerant. In this way, while realizing the anti-condensation of the middle beam, the oil return function is added, which can not only ensure the amount of lubricating oil in the compressor, but also prevent the lubricating oil from entering the refrigerant circulation and affecting the refrigeration efficiency.

[0047] Optionally, one end of the condenser 30 is connected to one end of the evaporator 40 through the drying filter 80 and the second throttling element 52 in sequence.

[0048] Optionally, the first throttling element 51 and the second throttling element 52 may be throttling capillaries.

[0049] Optionally, the compressor 10 includes a frequency converter. The operating gear of the frequency converter is positively correlated with the operating frequency of the compressor. As an example, the higher the operating gear of the frequency converter, the greater the operating frequency of the compressor. The lower the operating gear of the frequency converter, the lower the operating frequency of the compressor.

[0050] Optionally, a temperature sensor 51a is provided at the pipe end of the first throttling element 52 away from the bypass port 20a. The temperature sensor 51a is used to detect the terminal temperature value of the first throttling element. The refrigerator further includes an electronic control device 70. The electronic control device 70 is electrically connected to the compressor 10 and the temperature sensor 51a, and is configured to obtain the terminal temperature value and the ambient temperature value, and adjust the initial operating gear of the inverter according to the terminal temperature value and the ambient temperature value.

[0051] In this way, the numerical value of the terminal temperature value can reflect the temperature value of the refrigerant entering the center beam anti-condensation pipe 60. When the difference between the terminal temperature value and the ambient temperature value is different, the operating frequency of the compressor is also different. To this end, the disclosed embodiment is provided with an electric control device 70, which can adjust the initial operating gear of the inverter according to the terminal temperature value and the ambient temperature value obtained in real time, so as to realize the regulation of the operating frequency of the compressor, which is conducive to improving the accuracy of anti-condensation control.

[0052] Based on the above refrigerator structure, combined with Figure 3 As shown, the embodiment of the present disclosure provides a control method for preventing condensation in the middle beam of a refrigerator, comprising:

[0053] S01: The processor obtains the startup rate of the compressor.

[0054] S02, the processor adjusts the reference operating gear of the inverter according to the startup rate of the compressor, wherein the startup rate is negatively correlated with the reference operating gear.

[0055] Using the control method for anti-condensation of the center beam of the refrigerator provided by the embodiment of the present disclosure, when the start-up rate of the compressor is less than 1, it indicates that the compressor is in an intermittent start-stop operation state. At this time, the closer the start-up rate of the compressor is to 1, the better the anti-condensation effect of the center beam anti-condensation pipe. To this end, the embodiment of the present disclosure adjusts the reference operating gear of the inverter according to the negative correlation between the start-up rate of the compressor and the reference operating gear. In this way, by adjusting the reference operating gear of the inverter, the operating frequency of the compressor can be increased, which is beneficial to improving the anti-condensation effect of the center beam anti-condensation pipe.

[0056] Optionally, the processor adjusts the reference operating gear of the inverter according to the startup rate of the compressor, including:

[0057] When X≤X 1 In the case of, the processor adjusts the frequency converter to reduce the reference operating gear by the first gear amplitude to obtain the initial operating gear. Or,

[0058] In X 1 <X≤X 2 In this case, the processor adjusts the inverter to reduce the reference operating gear by the second gear amplitude to obtain the initial operating gear.

[0059] Among them, X represents the startup rate, X 1 Indicates the first startup rate threshold, X 2 Indicates the second power-on rate threshold, 60% <X 2 ≤ the upper threshold of the startup rate, the amplitude of the first gear is greater than the amplitude of the second gear.

[0060] In this way, the startup rate is negatively correlated with the benchmark operating gear. 1 When the frequency converter is adjusted, the reference operating gear is reduced by the first gear amplitude, and at X 1 <X≤X 2 When the frequency converter is adjusted to reduce the reference operating gear with the second gear amplitude, and the first gear amplitude is greater than the second gear amplitude. In this way, when the startup rate is low, the frequency converter is controlled to decrease with a larger gear amplitude, which is conducive to quickly increasing the startup rate of the compressor, thereby achieving the effect of quickly eliminating condensation on the middle beam.

[0061] Optionally, 0 <X 1 ≤55%. Understandably, X 1 It can also be any value less than 55%. 1 It may be 40%, 45% or 50%, etc. The embodiment of the present disclosure may not make any specific limitation thereto.

[0062] Optionally, the upper threshold of the power-on rate can be set according to a test or an empirical value. As an example, 70% < upper threshold of the power-on rate ≤ 85%. Preferably, the upper threshold of the power-on rate is 80% or 85%. It can be understood that the upper threshold of the power-on rate can be any value within (70%, 85%).

[0063] It should be noted that the processor can be (X 1 , X 2 ], (X 1 , X 2 ] to further divide. For example, in X 1 <X≤X 4 In the case of X, the processor adjusts the frequency converter to reduce the reference operating gear by the tenth gear amplitude to obtain the initial operating gear. 4 <X≤X 2 In the case of X, the processor adjusts the frequency converter to reduce the reference operating gear by the eleventh gear amplitude to obtain the initial operating gear. 4 Indicates the fourth startup rate threshold, and the amplitude of the tenth gear is greater than the amplitude of the eleventh gear. This is conducive to the precise control of the middle beam anti-condensation.

[0064] As an example, the processor may adjust (X 1 , X 2 ] for further division. Among them, X 1 =55%. 2 =75%. 4 =60%.

[0065] When X≤55%, the frequency converter is adjusted to reduce the base operating gear to n+3 gears.

[0066] When 55%<X≤60%, the frequency converter is adjusted to reduce the base running gear to n+1 gears.

[0067] When 60%<X≤75%, the frequency converter is adjusted to reduce the standard operating gear to n gears, where n∈N+.

[0068] Optionally, combined Figure 4 As shown, after the processor adjusts the frequency converter to reduce the reference operating gear by the gear amplitude to obtain the initial operating gear, it also includes:

[0069] S11, the processor obtains the terminal temperature value and the ambient temperature value.

[0070] S12, the processor adjusts the initial operating gear of the inverter according to the terminal temperature value and the ambient temperature value.

[0071] The gear amplitude includes a first gear amplitude or a second gear amplitude.

[0072] In this way, since when the startup rate is less than the startup rate upper limit threshold, the higher the operating frequency of the compressor, the higher the temperature of the middle beam anti-condensation pipe. Therefore, when the startup rate is less than the startup rate upper limit threshold, the greater the difference between the terminal temperature value and the ambient temperature value, the higher the temperature of the middle beam anti-condensation pipe, and the operation gear of the inverter needs to be adjusted with a larger amplitude. The smaller the difference between the terminal temperature value and the ambient temperature value, the lower the temperature of the middle beam anti-condensation pipe, and the operation gear of the inverter needs to be adjusted with a smaller amplitude. In this way, after the embodiment of the present disclosure adjusts the reference operation gear of the inverter according to the startup rate of the compressor and obtains the initial operation gear, the above-mentioned initial operation gear can be adjusted according to the terminal temperature value and the ambient temperature value to achieve fine-tuning of the inverter gear. On the basis of adjusting the initial operation gear of the inverter according to the startup rate of the compressor, the gear is further fine-tuned according to the difference between the terminal temperature value and the ambient temperature value, further improving the accuracy of the middle beam anti-condensation control.

[0073] Optionally, the processor adjusts the initial operating gear of the inverter according to the terminal temperature value and the ambient temperature value, including:

[0074] The processor obtains the terminal temperature value T cap and ambient temperature T env The difference ΔT s . Among them, ΔT s =T cap -T env .

[0075] In ΔT s >ΔT 1 In the case of, the processor adjusts the inverter to reduce the initial operating gear by the third gear amplitude. Or,

[0076] In ΔT 2 ≤ΔT s <ΔT 1 In the case of, the processor adjusts the inverter to reduce the initial operating gear by the fourth gear amplitude. Or,

[0077] In ΔT s <ΔT 2 In this case, the processor adjusts the inverter to reduce the initial operating gear by the fifth gear amplitude.

[0078] Where, ΔT 1 Represents the first temperature difference threshold, ΔT 2 Indicates the second temperature difference threshold, the third gear amplitude is greater than the fourth gear amplitude, and the fourth gear amplitude is greater than the fifth gear amplitude.

[0079] In this way, when the startup rate is less than the startup rate upper limit threshold, the greater the difference between the terminal temperature value and the ambient temperature value, the higher the temperature of the middle beam anti-condensation pipe, and the larger the range of the inverter operation gear adjustment is. On the other hand, the smaller the difference between the terminal temperature value and the ambient temperature value, the lower the temperature of the middle beam anti-condensation pipe, and the smaller the range of the inverter operation gear adjustment is. In this way, the embodiment of the present disclosure can adjust the inverter operation gear according to the terminal temperature value T cap and ambient temperature T env The difference ΔT s The amplitude of the inverter's initial operating gear is adjusted downward to further improve the accuracy of the center beam anti-condensation control.

[0080] Optionally, 10°C < ΔT 1 ≤16℃, 5℃≤ΔT 2 ≤10°C. Preferably, ΔT 1 =16℃, ΔT 2 =8°C. It can be understood that ΔT 1 It can also be any value within (10°C, 16°C]. For example, ΔT 1 It can be 11°C, 15°C, etc. ΔT 2 It can also be any value within [5°C, 10°C]. For example, ΔT 2 It may be 5° C., 7° C., 9° C., etc. The embodiments of the present disclosure may not make any specific limitation thereto.

[0081] Optionally, the processor adjusts the reference operating gear of the inverter according to the startup rate of the compressor, and further includes:

[0082] In X 2 <X≤X 3 In the case of, the processor adjusts the frequency converter to increase the reference operating gear by the sixth gear amplitude to obtain the initial operating gear. Or,

[0083] In X>X 3 In this case, the processor adjusts the inverter to increase the reference operating gear by the seventh gear amplitude to obtain the initial operating gear.

[0084] Among them, X represents the startup rate, X 3 Indicates the third startup rate threshold, the startup rate upper threshold <X 3 ≤95%, the amplitude of the sixth gear is smaller than that of the seventh gear.

[0085] Thus, under normal circumstances, the reasonable range of the power-on rate is [60%, power-on rate upper limit threshold]. When the power-on rate is greater than the power-on rate upper limit threshold, it indicates that the compressor needs to run for a longer time to meet the refrigeration demand of the refrigerator. That is, when the power-on rate is greater than the power-on rate upper limit threshold, it indicates that the cooling capacity of the compressor is insufficient. At this time, it is necessary to increase the cooling capacity of the compressor. To this end, the embodiment of the present disclosure increases the cooling capacity supply of the compressor by increasing the base operating gear of the inverter.

[0086] At the same time, when the startup rate is greater than the startup rate upper limit threshold, the startup rate of the compressor can be reduced by increasing the base operating gear of the inverter. To this end, the embodiment of the present disclosure uses the increase operation of the base operating gear of the inverter to achieve the effect of lowering the startup rate. As a result, the startup rate is close to the startup rate upper limit threshold or even lower than the startup rate upper limit threshold. Finally, the startup rate after the reduction is reduced to a reasonable range of the startup rate.

[0087] Due to X 2 <X≤X 3 The deviation between the startup rate and the startup rate upper threshold should be lower than X>X 3 The deviation between the startup rate under X and the upper threshold of the startup rate. 2 <X≤X 3 When X>X 3 In this way, the disclosed embodiment can adaptively perform the increase operation of the reference operation gear according to the deviation between the startup rate and the startup rate upper limit threshold, which is conducive to improving the accuracy of anti-condensation control.

[0088] The disclosed embodiment also provides another control method for preventing condensation in the middle beam of a refrigerator, including:

[0089] S21: The processor obtains the startup rate of the compressor.

[0090] S22, when X≤X 1 In the case of, the processor adjusts the frequency converter to reduce the reference operating gear by the first gear amplitude to obtain the initial operating gear. Or,

[0091] S23, in X 1 <X≤X 2 In this case, the processor adjusts the inverter to reduce the reference operating gear by the second gear amplitude to obtain the initial operating gear.

[0092] S24, in X 2 <X≤X 3 In the case of, the processor adjusts the frequency converter to increase the reference operating gear by the sixth gear amplitude to obtain the initial operating gear. Execute S26. Or,

[0093] S25, at X>X3 In the case of, adjusting the frequency converter to increase the reference running gear by the seventh gear amplitude to obtain the initial running gear. Execute S26.

[0094] S26, the processor obtains the terminal temperature value T cap and ambient temperature T env The difference ΔT p .

[0095] S27, at ΔT 2 ≤ΔT p <ΔT 1 In the case of, the processor adjusts the inverter to increase the initial operating gear by the eighth gear amplitude. Or,

[0096] S28, at ΔT p <ΔT 2 In this case, the processor adjusts the inverter to increase the initial operating gear by the ninth gear amplitude.

[0097] Among them, the startup rate is negatively correlated with the benchmark operating gear.

[0098] X represents the startup rate, X 1 Indicates the first startup rate threshold, X 2 Indicates the second startup rate threshold, X 3 Indicates the third power-on rate threshold, 60% <X 2 ≤ the upper threshold of the power-on rate. ΔT 1 Represents the first temperature difference threshold, ΔT 2 Indicates the second temperature difference threshold.

[0099] Upper threshold of power-on rate <X 3 ≤95%, the amplitude of the first gear is greater than that of the second gear, the amplitude of the sixth gear is less than that of the seventh gear, and the amplitude of the eighth gear is less than that of the ninth gear.

[0100] Using the control method for preventing condensation in the center beam of a refrigerator provided by the embodiment of the present disclosure, when the startup rate is greater than the startup rate upper limit threshold, the greater the difference between the terminal temperature value and the ambient temperature value, the higher the temperature of the center beam anti-condensation pipe, and the need to adjust the operating gear of the inverter by a larger amplitude to quickly increase the cooling supply of the compressor. The smaller the difference between the terminal temperature value and the ambient temperature value, the lower the temperature of the center beam anti-condensation pipe, and the cooling supply of the compressor can be increased by adjusting the operating gear of the inverter by a smaller amplitude. In this way, the embodiment of the present disclosure can adjust the cooling supply of the refrigerator according to the terminal temperature value T cap and ambient temperature T env The difference ΔT p The amplitude of the inverter's initial operating gear is adjusted in an increasing manner to further improve the accuracy of the center beam anti-condensation control.

[0101] In practical applications, based on Figure 2 The refrigerator structure shown in the figure is used for the control method of preventing condensation in the middle beam of the refrigerator, and the following steps are specifically performed:

[0102] S101, obtaining the startup rate X of the compressor.

[0103] S102, when X≤55%, adjust the base running gear of the inverter to lower n+4 gears to obtain the initial running gear:

[0104] If ΔT s >16℃, the initial operating gear of the inverter is reduced by 4 gears.

[0105] If 16℃≤ΔT s <8℃, the initial operating gear of the inverter is reduced by 3 gears.

[0106] If ΔT≤8℃, the initial operating gear of the inverter will be reduced by 2 gears.

[0107] S103, when 55%<X≤60%, adjust the base running gear of the inverter to lower n+3 gears to obtain the initial running gear:

[0108] If ΔT s >16℃, the initial operating gear of the inverter is reduced by 3 gears.

[0109] If 16℃≤ΔT s <8℃, the initial running gear of the inverter is reduced by 2 gears.

[0110] If ΔT≤8℃, the initial operating gear of the inverter will be reduced by 1 gear.

[0111] S104, when 60%<X≤75%, adjust the base running gear of the inverter to lower n+2 gears to obtain the initial running gear:

[0112] If ΔT s >16℃, the initial operating gear of the inverter is reduced by 2 gears.

[0113] If 16℃≤ΔT s <8℃, the initial running gear of the inverter is reduced by 1 gear.

[0114] If ΔT s ≤8℃, the initial operating gear of the inverter remains unchanged.

[0115] S105, when 75%<X≤85%, adjust the base running gear of the inverter to lower n+1 gears to obtain the initial running gear:

[0116] If ΔT p >16℃, the initial operating gear of the inverter is reduced by 1 gear.

[0117] If 16℃≤ΔT p <8℃, the initial operating gear of the inverter remains unchanged.

[0118] If ΔT p ≤8℃, the initial running gear of the inverter will increase by 1 gear.

[0119] S106, when 85%<X≤90%, adjust the base running gear of the inverter to remain unchanged to obtain the initial running gear:

[0120] If ΔT p >16℃, the initial operating gear of the inverter remains unchanged.

[0121] If 16℃≤ΔT p <8℃, the initial running gear of the inverter will increase by 1 gear.

[0122] If ΔT p ≤8℃, the initial operating gear of the inverter will increase by 2 gears.

[0123] S107, when X>90%, adjust the base running gear of the inverter to n+1 gears to obtain the initial running gear:

[0124] If ΔT p >16℃, the initial operating gear of the inverter will increase by 2 gears.

[0125] If 16℃≤ΔT p <8℃, the initial running gear of the inverter will increase by 3 gears.

[0126] If ΔT p ≤8℃, the initial operating gear of the inverter increases by 4 gears.

[0127] Among them, n∈N+.

[0128] Combination Figure 5 As shown, the embodiment of the present disclosure provides a control device 300 for preventing condensation in the center beam of a refrigerator, including a processor 400 and a memory 401. Optionally, the device may also include a communication interface 402 and a bus 403. The processor 400, the communication interface 402, and the memory 401 may communicate with each other through the bus 403. The communication interface 402 may be used for information transmission. The processor 400 may call the logic instructions in the memory 401 to execute the control method for preventing condensation in the center beam of a refrigerator of the above embodiment.

[0129] In addition, the logic instructions in the memory 401 described above may be implemented in the form of software functional units and when sold or used as independent products, may be stored in a computer-readable storage medium.

[0130] The memory 401 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 400 executes the functional application and data processing by running the program instructions / modules stored in the memory 401, that is, the control method for preventing condensation in the middle beam of the refrigerator in the above embodiment is implemented.

[0131] The memory 401 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 401 may include a high-speed random access memory and may also include a non-volatile memory.

[0132] Combination Figure 6 As shown, the embodiment of the present disclosure provides a refrigerator 600, including: a refrigerator door body 100, a compressor 10, an oil separator 20, a bypass line 90, a center beam anti-dew pipe 60, a temperature sensor 51a, an electronic control device 70, and the aforementioned control device 300 for preventing condensation on the center beam of the refrigerator. The compressor 10, its exhaust port is connected to the exhaust line 101, and its intake port is connected to the intake line 102. The oil separator 20 is arranged on the exhaust line 101 and is provided with a bypass port 20a. The bypass line 90 is arranged between the center beam anti-dew pipe 60 and the bypass port 20a. The center beam anti-dew pipe 60 is installed at the center beam of the refrigerator door body 100. One end of the center beam anti-dew pipe 60 is connected to the bypass line 90, and the other end is connected to the intake line 102. The control device 300 for preventing condensation on the center beam of the refrigerator is installed on the electronic control device 70. The temperature sensor 51a is arranged at the pipe end of the first throttling element 51 away from the bypass port 20a, and is used to detect the terminal temperature value of the first throttling element 51. The electronic control device 70 is electrically connected to the compressor 10 and the temperature sensor 51a. The installation relationship described here is not limited to placement inside the product, but also includes installation connections with other components of the product, including but not limited to physical connections, electrical connections or signal transmission connections. It can be understood by those skilled in the art that the control device for anti-condensation of the center beam of the refrigerator can be adapted to a feasible product body, thereby realizing other feasible embodiments.

[0133] The high-temperature and high-pressure refrigerant enters the oil separator 20 through the exhaust port and the exhaust pipe 101, and is converted into a low-pressure and high-temperature refrigerant under the throttling and pressure-reducing action of the first throttling element 51. The low-pressure and high-temperature refrigerant flows through the center beam anti-condensation pipe 60 to eliminate condensation on the center beam.

[0134] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned control method for preventing condensation on the middle beam of a refrigerator.

[0135] The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0136] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes, or a transient storage medium.

[0137] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0138] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0139] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0140] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A refrigerator, characterized in that: Comprising: A compressor, whose exhaust port is communicated with an exhaust pipe line, and whose suction port is communicated with a suction pipe line; An oil separator, disposed in the exhaust pipe line and provided with a bypass port; A bypass pipe line, disposed between the middle beam anti-condensation pipe and the bypass port; The middle beam anti-condensation pipe, one end of which is connected to the bypass pipe line and the other end of which is connected to the suction pipe line; Wherein, the high-temperature and high-pressure refrigerant enters the oil separator through the exhaust port and then through the exhaust pipe line, and is converted into a low-pressure and high-temperature refrigerant under the throttling and pressure-reducing action of the first throttling element. The low-pressure and high-temperature refrigerant flows through the middle beam anti-condensation pipe to eliminate condensation.

2. The refrigerator according to claim 1, characterized in that: A temperature sensor is disposed at the pipe end of the first throttling element departing from the bypass port. The temperature sensor is used for detecting the end temperature value of the first throttling element. The freezer further includes an electric control device, which is electrically connected to both the compressor and the temperature sensor, and is configured to obtain the end temperature value and the ambient temperature value, and adjust the initial operation gear of the frequency converter according to the end temperature value and the ambient temperature value.

3. A control method for preventing condensation in the middle beam of a refrigerator, characterized in that: Comprising: Obtaining the starting rate of the compressor; Adjusting the reference operation gear of the frequency converter according to the starting rate of the compressor; Wherein, the starting rate is negatively correlated with the reference operation gear.

4. The method according to claim 3, characterized in that The adjusting the reference operation gear of the frequency converter according to the starting rate of the compressor includes: In the case where X≤X1, adjusting the frequency converter to reduce the reference operation gear by a first gear amplitude to obtain the initial operation gear; or, In the case where X1<X≤X2, adjusting the frequency converter to reduce the reference operation gear by a second gear amplitude to obtain the initial operation gear; Wherein, X represents the starting rate, X1 represents the first starting rate threshold, X2 represents the second starting rate threshold, 60%<X2≤the starting rate upper limit threshold, and the first gear amplitude is greater than the second gear amplitude.

5. The method according to claim 4, characterized in that A temperature sensor is disposed at the pipe end of the first throttling element departing from the bypass port. The temperature sensor is used for detecting the end temperature value of the first throttling element. The freezer further includes an electric control device, which is electrically connected to both the compressor and the temperature sensor. After adjusting the frequency converter to reduce the reference operation gear by the gear amplitude to obtain the initial operation gear, it further includes: Obtaining the end temperature value and the ambient temperature value; Adjusting the initial operation gear of the frequency converter according to the end temperature value and the ambient temperature value; Wherein, the gear amplitude includes the first gear amplitude or the second gear amplitude.

6. The method according to claim 5, characterized in that The adjusting the initial operation gear of the frequency converter according to the end temperature value and the ambient temperature value includes: Get the terminal temperature value T cap and ambient temperature T env The difference ΔT s ; In ΔT s >ΔT1, adjust the inverter to reduce the initial operating gear by the third gear amplitude; or, When ΔT2≤ΔT s <ΔT1, adjust the inverter to reduce the initial operating gear by the fourth gear amplitude; or, In ΔT s When <ΔT2, adjust the inverter to reduce the initial operating gear by the fifth gear amplitude; Wherein, ΔT1 represents the first temperature difference threshold, ΔT2 represents the second temperature difference threshold, the third gear amplitude is greater than the fourth gear amplitude, and the fourth gear amplitude is greater than the fifth gear amplitude.

7. The method according to claim 4, characterized in that The adjusting the reference operation gear of the frequency converter according to the starting rate of the compressor further includes: In the case where X2<X≤X3, adjusting the frequency converter to increase the reference operation gear by a sixth gear amplitude to obtain the initial operation gear; or, In the case where X>X3, adjusting the frequency converter to increase the reference operation gear by a seventh gear amplitude to obtain the initial operation gear; Wherein, X3 represents the third starting rate threshold, the starting rate upper limit threshold<X3≤95%, and the sixth gear amplitude is less than the seventh gear amplitude.

8. The method according to claim 7, characterized in that After the frequency converter is adjusted to increase the reference operating gear by the gear amplitude to obtain the initial operating gear, the method further includes: Get the terminal temperature value T cap and ambient temperature T env The difference ΔT p ; When ΔT2≤ΔT p <ΔT1, adjust the frequency converter to increase the initial operating gear by the eighth gear amplitude; or, In ΔT p <ΔT2, adjust the inverter to increase the initial operating gear by the ninth gear amplitude; Wherein, ΔT1 represents the first temperature difference threshold, ΔT2 represents the second temperature difference threshold, the gear amplitude includes the sixth gear amplitude or the seventh gear amplitude, and the eighth gear amplitude is smaller than the ninth gear amplitude.

9. A control device for preventing condensation in the middle beam of a refrigerator, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the control method for preventing condensation on the center beam of a refrigerator according to any one of claims 3 to 8 when running the program instructions.

10. A refrigerator, characterized in that: include: A compressor, an exhaust port of which is connected to an exhaust pipeline, and an intake port of which is connected to an intake pipeline; An oil separator is arranged in the exhaust pipe and is provided with a bypass port; The bypass pipeline is arranged between the middle beam anti-exposure pipe and the bypass port; The middle beam anti-dew pipe has one end connected to the bypass pipeline and the other end connected to the suction pipeline; A temperature sensor is arranged at the pipe end of the first throttling element away from the bypass port, and is used to detect the terminal temperature value of the first throttling element; an electronic control device, electrically connected to the compressor and the temperature sensor, and The control device for preventing condensation in the center beam of a refrigerator as claimed in claim 9 is installed in the electronic control device.

11. A storage medium storing program instructions, characterized in that: When the program instructions are executed, the control method for preventing condensation in the center beam of a refrigerator as described in any one of claims 3 to 8 is executed.

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