Control method and control device for refrigerator and refrigerator

Abstract

The invention relates to the technical field of refrigeration, and discloses a control method and device for a refrigerator and the refrigerator, an evaporator of the refrigerator comprises an inner container, a first evaporation pipeline and a second evaporation pipeline, a refrigeration space is defined by the inner container, and the first evaporation pipeline and the second evaporation pipeline are wound around the outer wall of the inner container at intervals from top to bottom; the second evaporation pipeline is wound in a mode that the upper part is dense and the lower part is sparse, so that a plurality of refrigeration layers are formed in the refrigeration space in height; the control method comprises the steps that the upper refrigerating layer temperature of the refrigerating space is obtained; and according to the relation between the upper refrigerating layer temperature and the refrigerating temperature threshold value, the operation states of the first evaporation pipeline and the second evaporation pipeline are controlled. Different refrigeration modes are achieved by controlling the first evaporation pipeline and the second evaporation pipeline according to the relation between the upper layer refrigeration temperature and the refrigeration temperature threshold value under different conditions so that the purpose of saving electricity under the condition that the refrigeration requirement can be met can be achieved.

Description

Technical Field

[0001] The present application relates to the field of refrigeration technology, for example, to a control method and a control device for a refrigerator, and a refrigerator. Background Art

[0002] Currently, existing refrigerators generally start and stop the compressor according to the temperature changes in the test box. The starting and stopping of the compressor consumes a lot of electricity, and frequent starting and stopping will increase electricity costs.

[0003] In related technologies, the peak and valley periods of regional electricity consumption are obtained, and the cooling temperature is adjusted upward during peak periods to save electricity, and the cooling temperature is adjusted downward during valley periods to store cold energy, thereby achieving the purpose of saving electricity.

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

[0005] The temperature cannot be adjusted specifically for different spaces in the freezer, resulting in the temperature of some spaces being too low, or some spaces being unable to meet the cooling needs.

[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 this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this 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 elements 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 control device, and a refrigerator for a refrigerator, so as to solve the problem of low energy efficiency of existing refrigerators.

[0009] According to a first aspect of the present invention, a control method for a refrigerator is provided, wherein the refrigerator includes an inner liner, a first evaporation line, and a second evaporation line, wherein the inner liner defines a refrigeration space, the first evaporation line and the second evaporation line are wound around the outer wall of the inner liner at intervals from top to bottom, and the second evaporation line is wound in a manner of dense upper and sparse lower, so that the refrigeration space forms multiple refrigeration layers in height; the control method includes: obtaining a temperature of an upper refrigeration layer of the refrigeration space; and controlling the operating status of the first evaporation line and the second evaporation line according to a relationship between the temperature of the upper refrigeration layer and a refrigeration temperature threshold.

[0010] Optionally, the operating status of the first evaporator pipeline and the second evaporator pipeline is controlled according to the relationship between the temperature of the upper refrigeration layer and the refrigeration temperature threshold, including: when the temperature of the upper refrigeration layer is greater than or equal to the refrigeration temperature threshold, controlling the refrigerant to flow through the first evaporator pipeline and the second evaporator pipeline at the same time; when the temperature of the upper refrigeration layer is less than the refrigeration temperature threshold, controlling the refrigerant to flow through the first evaporator pipeline.

[0011] Optionally, based on the relationship between the temperature of the upper refrigeration layer and the refrigeration temperature threshold, the operating status of the first evaporation pipeline and the second evaporation pipeline is controlled, including: obtaining the door opening frequency of the refrigerator; when the door opening frequency is greater than or equal to the preset frequency and the temperature of the upper refrigeration layer is greater than or equal to the refrigeration temperature threshold, controlling the refrigerant to flow through the second evaporation pipeline; when the door opening frequency is greater than or equal to the preset frequency and the temperature of the upper refrigeration layer is less than the refrigeration temperature threshold, controlling the refrigerant to flow through the first evaporation pipeline; when the door opening frequency is less than the preset frequency and the temperature of the upper refrigeration layer is greater than or equal to the refrigeration temperature threshold, controlling the refrigerant to flow through the first evaporation pipeline and the second evaporation pipeline at the same time; when the door opening frequency is less than the preset frequency and the temperature of the upper refrigeration layer is less than the refrigeration temperature threshold, controlling the refrigerant to flow through the first evaporation pipeline.

[0012] Optionally, the refrigeration temperature threshold is determined in the following manner: obtaining peak and valley information of electricity consumption in the area where the refrigerator is located; and determining the refrigeration temperature threshold of the refrigerator based on the peak and valley information of electricity consumption.

[0013] Optionally, the refrigeration temperature threshold of the refrigerator is determined based on the peak and valley information of electricity consumption, including: when the peak and valley information of electricity consumption is a peak period of electricity consumption, determining the refrigeration temperature threshold of the refrigerator to be a first refrigeration temperature threshold; and / or, when the peak and valley information of electricity consumption is a low period of electricity consumption, determining the refrigeration temperature threshold of the refrigerator to be a second refrigeration temperature threshold; wherein the first refrigeration temperature threshold is less than the second refrigeration temperature threshold.

[0014] Optionally, the first refrigeration temperature threshold and / or the second refrigeration temperature threshold are determined as follows:

[0015] T1=T0-R1, T2=T0+R2, wherein T1 is the first refrigeration temperature threshold, T2 is the second refrigeration temperature threshold, T0 is the standard refrigeration temperature threshold, R1 is the first temperature adjustment parameter, and R2 is the second temperature adjustment parameter.

[0016] Optionally, the control method for the refrigerator further includes controlling the operating speed of the compressor according to the relationship between the temperature of the upper refrigeration layer and the refrigeration temperature threshold.

[0017] According to a second aspect of the present invention, a control device for a refrigerator is provided, comprising a processor and a memory storing program instructions. The processor is configured to execute the control method for a refrigerator according to any one of the above embodiments when running the program instructions.

[0018] According to a third aspect of the present invention, a refrigerator is provided, wherein the evaporator of the refrigerator comprises: an inner tank defining a refrigeration space; a first evaporation pipeline wound from top to bottom around the outer wall of the inner tank; a second evaporation pipeline wound from top to bottom around the outer wall of the inner tank with intervals therebetween, and the second evaporation pipeline is wound in a dense upper and sparse lower manner so that the refrigeration space forms multiple refrigeration layers in height; and / or a control device for the refrigerator as in the above embodiment, installed on the body of the refrigerator.

[0019] Optionally, the first evaporation pipeline is evenly wound around the outer wall of the inner container from top to bottom, and one or more turns of the second evaporation pipeline are wound around the outer wall of the inner container between two adjacent turns of the evaporation pipeline of the first evaporation pipeline.

[0020] The embodiments of the present disclosure provide a control method, a control device, and a refrigerator for use in a refrigerator, which can achieve the following technical effects:

[0021] The first evaporation pipe is evenly wound around the outer wall of the refrigerator's inner tank. When the refrigerator meets the cooling demand, the refrigerant is controlled to flow through the first evaporation pipe to keep the refrigerator warm. The second evaporation pipe is densely packed at the bottom, so the cooling intensity of the upper refrigeration space is greater than that of the lower refrigeration space. The door at the top of the refrigerator is opened, causing the temperature of the upper layer to rise first. When the temperature of the upper layer of the refrigerator does not meet the cooling demand, the refrigerant is controlled to flow through the second evaporation pipe to quickly cool the upper refrigeration space of the refrigerator, so that the refrigerator quickly meets the cooling demand, avoiding the upper and lower refrigerators being cooled at the same time, resulting in excessive local cooling and energy waste. By controlling the first evaporation pipe and the second evaporation pipe according to the relationship between the upper refrigeration temperature and the refrigeration temperature threshold in different situations, different refrigeration modes can be achieved to save electricity while meeting the cooling requirements.

[0022] 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

[0023] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0024] Figure 1 is a flow chart of a refrigerator control method provided by an embodiment of the present disclosure;

[0025] Figure 2is a flow chart of a refrigerator control method provided by another embodiment of the present disclosure;

[0026] Figure 3 is a flow chart of a refrigerator control method provided by yet another embodiment of the present disclosure;

[0027] Figure 4 is a flow chart of a refrigerator control method provided by yet another embodiment of the present disclosure;

[0028] Figure 5 is a flow chart of a refrigerator control method provided by yet another embodiment of the present disclosure;

[0029] Figure 6 is a flow chart of a refrigerator control method provided by yet another embodiment of the present disclosure;

[0030] Figure 7 is a structural schematic diagram of a refrigerator provided by an embodiment of the present disclosure;

[0031] Figure 8 is a structural principle diagram of a refrigeration system provided by one embodiment of the present disclosure;

[0032] Figure 9 It is a structural principle diagram of a control device for a refrigerator provided by an embodiment of the present disclosure.

[0033] Reference numerals:

[0034] 10: Freezer; 11: Inner container; 12: Door; 13: Refrigeration system; 131: Compressor; 132: Condenser; 133: Dry filter; 134: First evaporation pipeline; 135: Second evaporation pipeline; 136: Throttling device; 137: Solenoid valve; 138: Temperature sensor; 139: Light sensor; 140: Three-way valve; 1000: Processor; 1001: Memory; 1002: Bus; 1003: Communication interface. DETAILED DESCRIPTION

[0035] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0036] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0037] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0039] Unless otherwise stated, the term "plurality" means two or more.

[0040] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0041] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0043] Currently, existing refrigerators generally start and stop the compressor according to the temperature changes in the test box. The starting and stopping of the compressor consumes a lot of electricity, and frequent starting and stopping will increase electricity costs.

[0044] The related art discloses a refrigerator comprising a housing with a refrigeration compartment provided therein; a refrigeration system; and a controller connected to the refrigeration system and a compartment temperature sensor. The refrigeration system comprises an evaporator, an evaporating fan, and an air duct, wherein the air duct connects the refrigeration space and the air outlet of the evaporating fan, and the evaporating fan blows the cooling energy of the evaporator into the refrigeration space through the air duct. The refrigeration method comprises obtaining the peak and valley electricity consumption periods in a region, adjusting the cooling temperature during peak periods to save electricity, and adjusting the cooling temperature during valley periods to store cooling energy, thereby achieving the purpose of saving electricity. However, since the refrigerator uses an ordinary refrigeration system, although using different cooling temperatures for refrigeration during valley periods and peak periods can save electricity, the temperature control mode is single and the temperature inside the refrigerator cannot be adjusted in a targeted manner, resulting in poor energy saving effects.

[0045] The present application realizes different refrigeration modes by controlling the first evaporation pipe and the second evaporation pipe according to the relationship between the upper refrigeration temperature and the refrigeration temperature threshold in different situations, so as to achieve the purpose of saving electricity while meeting the refrigeration requirements.

[0046] Combine Figures 1 to 9 As shown, the embodiment of the present disclosure provides a control method for a refrigerator 10. The evaporator of the refrigerator 10 includes an inner liner 11, a first evaporation line 134, and a second evaporation line 135. The inner liner 11 defines a refrigeration space. The first evaporation line 134 and the second evaporation line 135 are wound around the outer wall of the inner liner 11 from top to bottom, and the second evaporation line 135 is wound in a dense upper and sparse lower manner, so that the refrigeration space forms multiple refrigeration layers in height. The control method includes:

[0047] S301: Obtain the temperature of the upper refrigeration layer of the refrigeration space.

[0048] In this step, the door of the upper end of the freezer 10 is opened, and the temperature of the upper refrigeration layer includes the temperature of the space above the middle part in the height (vertical direction) of the freezer 10. When the door of the upper end of the freezer 10 is opened, the upper space of the freezer 10 is first in contact with the air, causing the temperature of the upper refrigeration layer to rise first. A sensor is set in the upper space of the freezer 10 to obtain the temperature of the upper refrigeration layer.

[0049] S302 : Control the operating states of the first evaporation pipeline 134 and the second evaporation pipeline 135 according to the relationship between the temperature of the upper refrigeration layer and the refrigeration temperature threshold.

[0050] like Figure 1 and Figure 2As shown, the refrigerator 10 includes an evaporator, which is centrally located in the inner tank 11 that defines a refrigeration space, and the upper end of the refrigeration space is provided with a door body. The refrigeration system 13 of the refrigerator 10 includes a compressor 131, a condenser 132, a drying filter 133, a solenoid valve 137, a throttling device 136, a three-way pipe 140, and an evaporation pipeline. The compressor 131 provides power for the refrigeration system 13, which cools through refrigerant circulation. The compressor 131 compresses the gaseous refrigerant into high-temperature liquid refrigerant, which is cooled by the condenser 132. The cooled liquid refrigerant flows through the drying filter 133 and is distributed to the corresponding throttling device 136 through the solenoid valve 137. After throttling through the throttling device 136, the low-temperature gaseous refrigerant enters the corresponding evaporation pipeline. The evaporation pipeline includes a first evaporation pipeline 134 and a second evaporation pipeline 135. The first evaporation pipeline 134 is uniformly wound from top to bottom on the outer wall of the inner tank 11. The second evaporation pipeline 135 is spaced apart from the first evaporation pipeline 134 and wound on the outer wall of the inner tank 11 in a manner of high density at the lower part and low density at the upper part, thereby cooling the inner tank 11. The detection system includes a plurality of temperature sensors 138 and light sensors 139 for detecting the temperature of each part of the inner tank 11 and the opening and closing of the door. By detecting the temperature of the upper layer inside the inner tank 11 and the opening and closing of the door, the refrigeration temperature is controlled, and the first evaporation pipeline 134 is controlled to heat the entire inner tank 11 or the first evaporation pipeline 134 and the second evaporation pipeline 135 are controlled to simultaneously cool the inner tank 11 quickly, or the second evaporation pipeline 135 is controlled to cool the upper layer of the inner tank 11, thereby achieving the effect of energy-saving refrigeration.

[0051] The distance between adjacent two first evaporation pipelines 134 is equal, and one or more second evaporation pipelines 135 are wound between the adjacent two first evaporation pipelines 134. The first evaporation pipeline 134 overlaps the second evaporation pipeline 135 at the overlapping and staggered part, and the first evaporation pipeline 134 covers the upper side of the second evaporation pipeline 135.

[0052] Optionally, according to the relationship between the upper refrigeration layer temperature and the refrigeration temperature threshold, the operating state of the first evaporation pipeline 134 and the second evaporation pipeline 135 is controlled, including:

[0053] S4022, in the case that the upper refrigeration layer temperature is greater than or equal to the refrigeration temperature threshold, the refrigerant is controlled to flow through the first evaporation pipeline 134 and the second evaporation pipeline 135 simultaneously.

[0054] Since the door body of the refrigerator 10 is opened upward, the temperature of the upper refrigeration space is more likely to rise. In the case that the upper refrigeration space temperature is greater than or equal to the refrigeration temperature threshold, the refrigerant is controlled to flow through the first evaporation pipeline 134 and the second evaporation pipeline 135 simultaneously. The first evaporation pipeline 134 cools the entire refrigeration space, and the second evaporation pipeline 135 has a large winding density corresponding to the upper refrigeration space, which can provide more cold energy to the upper refrigeration space and speed up the cooling speed of the upper refrigeration space.

[0055] S4023, in a case where the upper refrigeration layer temperature is less than the refrigeration temperature threshold, controlling the refrigerant to flow through the first evaporation pipeline 134.

[0056] In a case where the upper refrigeration space temperature is less than the refrigeration temperature threshold, the refrigeration space meets the refrigeration requirement, and only needs to be insulated. The first evaporation pipeline 134 is uniformly wound on the outer wall of the inner container 11, so that the refrigeration space can be uniformly refrigerated to maintain the temperature in the refrigeration space.

[0057] Optionally, according to the relationship between the upper refrigeration layer temperature and the refrigeration temperature threshold, the operating state of the first evaporation pipeline 134 and the second evaporation pipeline 135 is controlled, including:

[0058] S5021, obtaining the door opening frequency of the refrigerator 10.

[0059] S5022, in a case where the door opening frequency is greater than or equal to the preset frequency, and the upper refrigeration layer temperature is greater than or equal to the refrigeration temperature threshold, controlling the refrigerant to flow through the second evaporation pipeline 135.

[0060] In a case where the door opening frequency is greater than or equal to the preset frequency, the frequent opening and closing of the door body causes the upper layer of the refrigeration space to frequently contact the external air, which is easy to cause the upper layer of the refrigeration space to warm up. The refrigerant is controlled to flow through the second evaporation pipeline 135, which is dense on the top and sparse on the bottom. The refrigeration capacity of the upper layer of the refrigeration space is greater than that of the lower layer of the space, so as to refrigerate the upper layer of the refrigeration space in real time, and the lower layer of the space will not be too cold.

[0061] S5023, in a case where the door opening frequency is greater than or equal to the preset frequency, and the upper refrigeration layer temperature is less than the refrigeration temperature threshold, controlling the refrigerant to flow through the first evaporation pipeline 134.

[0062] The door body is frequently opened and closed, and the upper layer of the refrigeration space frequently contacts the external space, which is easy to warm up. However, the temperature of the upper layer of the space is less than the refrigeration threshold, which meets the refrigeration requirement. At this time, the refrigeration space needs to be insulated. The first evaporation pipeline 134 is uniformly wound on the outer wall of the inner container 11, and the winding density is less than that of the second evaporation pipeline 135, so the refrigeration capacity is less than that of the second evaporation pipeline 135. The refrigerant is controlled to flow through the first evaporation pipeline 134 to refrigerate and insulate the refrigeration space as a whole, and the temperature of the refrigeration space will not be too low.

[0063] S5024, in a case where the door opening frequency is less than the preset frequency, and the upper refrigeration layer temperature is greater than or equal to the refrigeration temperature threshold, controlling the refrigerant to flow through the first evaporation pipeline 134 and the second evaporation pipeline 135 at the same time.

[0064] The door opening frequency is less than the preset frequency, the refrigeration space has less contact with the outside air, and the temperature difference between the upper refrigeration space and the lower refrigeration space is small. At this time, the temperature of the upper refrigeration space is greater than or equal to the refrigeration temperature threshold, indicating that the overall temperature in the refrigeration space is high and needs to be cooled down quickly as a whole. The refrigerant is controlled to flow through the first evaporation pipe 134 and the second evaporation pipe 135 at the same time to quickly cool down the entire refrigeration space.

[0065] S5025 : When the door opening frequency is less than the preset frequency and the temperature of the upper refrigeration layer is less than the refrigeration temperature threshold, control the refrigerant to flow through the first evaporation pipeline 134 .

[0066] The door opening frequency is low, and the upper refrigeration space is lower than the refrigeration temperature threshold, indicating that the overall temperature of the refrigeration space is relatively low, meeting the refrigeration demand. At this time, it is only necessary to insulate the refrigeration space, and control the refrigerant to flow through the first evaporation pipe 134 evenly wound around the outer wall of the inner tank 11 to cool and insulate the entire refrigeration space.

[0067] In some embodiments, the preset frequency includes 8 times per hour, 9 times per hour, or 10 times per hour.

[0068] When the door opening frequency is greater than 8 times per hour, 9 times per hour, or 10 times per hour, it is determined to be frequent door opening. The specific preset frequency can be set according to user needs.

[0069] Optionally, the cooling temperature threshold is determined as follows:

[0070] S6021. Obtain peak and valley information of electricity consumption in the area where the refrigerator 10 is located.

[0071] S6022: Determine the refrigeration temperature threshold of the refrigerator 10 based on the peak and valley information of electricity consumption.

[0072] According to the peak and valley information of electricity consumption, the refrigeration temperature threshold of the refrigerator 10 can be determined. The temperature threshold can be adjusted by utilizing the peak and valley characteristics of electricity consumption, thereby reducing electricity consumption during peak hours and increasing electricity consumption during valley hours, thereby achieving energy-saving effects.

[0073] Optionally, determining the refrigeration temperature threshold of the refrigerator 10 according to the peak and valley information of electricity consumption includes:

[0074] When the peak-valley information of electricity consumption is a peak period of electricity consumption, the refrigeration temperature threshold of the refrigerator 10 is determined to be a first refrigeration temperature threshold; and / or, when the peak-valley information of electricity consumption is a low period of electricity consumption, the refrigeration temperature threshold of the refrigerator 10 is determined to be a second refrigeration temperature threshold; wherein the first refrigeration temperature threshold is greater than the second refrigeration temperature threshold.

[0075] During peak hours, the cooling temperature threshold is adjusted higher to meet cooling temperature requirements while using less electricity, reducing energy consumption. During valley hours, the cooling temperature threshold is adjusted lower to store more cooling capacity, balance the electricity load, and achieve comprehensive energy saving effects.

[0076] Optionally, the first refrigeration temperature threshold and / or the second refrigeration temperature threshold are determined as follows:

[0077] T1=T0+R1, T2=T0-R2, wherein T1 is the first refrigeration temperature threshold, T2 is the second refrigeration temperature threshold, T0 is the standard refrigeration temperature threshold, R1 is the first temperature adjustment parameter, and R2 is the second temperature adjustment parameter. R1 and R2 are both temperature values. For example, R1 is 3°C and R2 is 5°C. When T0 is -20°C, T1=-20°C+3°C=-17°C, that is, during the peak period of electricity consumption, the refrigeration temperature of the refrigerator 10 is increased so that the refrigerator 10 can quickly meet the refrigeration demand and reduce electricity consumption; T2=-20°C-5°C=-25°C, during the valley period of electricity consumption, the refrigeration temperature of the refrigerator 10 is lowered to store more cold capacity, so that the refrigerator 10 can reduce electricity consumption during the peak period of electricity consumption and achieve energy saving.

[0078] Among them, the specific data of R1 and R2 can be determined according to user needs and peak and valley electricity consumption conditions.

[0079] In some embodiments, the duration of the valley period exceeds 10 hours, and the peak period is less than 5 hours. In this case, T2 can be set to 3°C and T1 can be set to 5°C. A small amount of cold energy can be stored during the valley period to meet the cooling demand during the peak period in a short period of time.

[0080] In some embodiments, the peak electricity consumption period exceeds 10 hours and the valley electricity consumption period is less than 5 hours. At this time, T2 can be set to 6°C and T1 can be set to 3°C to store more cold energy during the valley electricity consumption period to meet the cooling needs of the long peak electricity consumption period.

[0081] Optionally, the control method for the refrigerator 10 further includes controlling the operating speed of the compressor 131 according to a relationship between the temperature of the upper refrigeration layer and the refrigeration temperature threshold.

[0082] The cooling rate is controlled by controlling the operating speed of the compressor 131 to control the refrigerant flow rate.

[0083] In some embodiments, controlling the operating speed of the compressor 131 according to the relationship between the temperature of the upper refrigeration layer and the refrigeration temperature threshold includes:

[0084] S7022: When the temperature of the upper refrigeration layer is greater than or equal to the refrigeration temperature threshold, control the compressor 131 to operate at a first speed.

[0085] When the upper cooling temperature is greater than or equal to the cooling temperature threshold, the cooling space cannot meet the cooling demand and needs to be cooled quickly. The operating speed of the compressor 131 is increased to increase the cooling rate of the refrigerant.

[0086] S7023: When the temperature of the upper refrigeration layer is lower than the refrigeration temperature threshold, control the compressor 131 to operate at a second speed, wherein the first speed is higher than the second speed.

[0087] When the upper cooling temperature is less than the cooling temperature threshold, it means that the cooling space meets the cooling demand. The speed of the compressor 131 can be reduced to maintain the cooling temperature of the cooling space, which can save energy.

[0088] In some embodiments, controlling the operating speed of the compressor 131 according to the relationship between the temperature of the upper refrigeration layer and the refrigeration temperature threshold includes:

[0089] S8021. Obtain the door opening frequency of the refrigerator 10.

[0090] S8022: When the door opening frequency is greater than or equal to the preset frequency and the temperature of the upper refrigeration layer is greater than or equal to the refrigeration temperature threshold, control the compressor 131 to operate at a first speed.

[0091] Frequent door opening causes the upper refrigeration space to frequently come into contact with the outside air, and causes the upper refrigeration temperature to rise and fail to meet the refrigeration demand. Rapid cooling is required, and the compressor 131 is controlled to run quickly to increase the refrigerant flow rate and speed up the refrigeration speed.

[0092] S8023: When the door opening frequency is greater than or equal to the preset frequency and the temperature of the upper refrigeration layer is less than the refrigeration temperature threshold, control the compressor 131 to operate at the second speed.

[0093] Frequent door opening causes the upper refrigeration space to frequently come into contact with the outside air, but the temperature of the upper refrigeration layer is lower than the refrigeration temperature threshold, which meets the refrigeration demand. At this time, it is only necessary to keep the refrigeration space warm. The compressor 131 is controlled to operate at a low speed to promote the flow of refrigerant to keep the refrigeration space warm.

[0094] S8024: When the door opening frequency is less than the preset frequency and the temperature of the upper refrigeration layer is greater than the refrigeration temperature threshold, control the compressor 131 to operate at the first speed.

[0095] The door opening frequency is low, and the temperature difference between the upper refrigeration space and the lower refrigeration space is small. At this time, the temperature of the upper refrigeration space is greater than the refrigeration temperature threshold, indicating that the overall temperature of the refrigeration space is high and needs to be cooled quickly. The compressor 131 is controlled to run at a high speed to speed up the cooling speed.

[0096] S8025: When the door opening frequency is less than the preset frequency and the temperature of the upper refrigeration layer is less than the refrigeration temperature threshold, control the compressor 131 to operate at a second speed, wherein the first speed is greater than the second speed.

[0097] The door opening frequency is low, and the temperature difference between the upper refrigeration space and the lower refrigeration space is small. At this time, the temperature of the upper refrigeration space is greater than the refrigeration temperature threshold, indicating that the temperature of the refrigeration space meets the refrigeration demand and only needs to be kept warm. The compressor 131 is controlled to operate at a low speed to promote the flow of refrigerant and keep the refrigeration space warm.

[0098] Example 1: The electricity usage is as shown in Table 1. The electricity price is highest during peak hours and lowest during valley hours. The control method for the power refrigerator 10 includes the following steps:

[0099] During the 4:00 PM to 10:00 PM time period, the cooling temperature threshold is raised, and the upper cooling layer temperature and door opening frequency are obtained. If the door opening frequency is greater than or equal to the preset frequency and the upper cooling layer temperature is greater than or equal to the cooling temperature threshold, the refrigerant is controlled to flow through the second evaporation line 135, and the compressor 131 is controlled to operate at the first speed. If the door opening frequency is greater than or equal to the preset frequency and the upper cooling layer temperature is less than the cooling temperature threshold, the refrigerant is controlled to flow through the first evaporation line 134, and the compressor 131 is controlled to operate at the second speed. If the door opening frequency is less than the preset frequency and the upper cooling layer temperature is greater than or equal to the cooling temperature threshold, the refrigerant is controlled to flow through both the first and second evaporation lines 134, 135, and the compressor 131 is controlled to operate at the first speed. If the door opening frequency is less than the preset frequency and the upper cooling layer temperature is less than the cooling temperature threshold, the refrigerant is controlled to flow through the first evaporation line 134, and the compressor 131 is controlled to operate at the second speed. The first speed is greater than the second speed. The specific values ​​of the first and second speeds can be set according to user needs.

[0100] During the time periods of 00:00-7:00 and 10:00-14:00, which are valley hours, the refrigeration temperature threshold is lowered. The control method for the refrigerator 10 is the same as that during peak hours.

[0101] The standard refrigeration temperature thresholds are set during the periods of 7:00-10:00, 14:00-16:00, and 22:00-24:00. The control method of the refrigerator 10 is the same as that during the peak and off-peak periods.

[0102] Table 1

[0103]

[0104] According to a second aspect of an embodiment of the present disclosure, a control device for a refrigerator 10 is provided, comprising a processor and a memory storing program instructions. The processor is configured to execute the control method for the refrigerator 10 as described in any of the above embodiments when running the program instructions.

[0105] According to a third aspect of an embodiment of the present disclosure, a refrigerator 10 is provided. The evaporator of the refrigerator 10 includes an inner container 11, a first evaporation line 134, and a second evaporation line 135. The inner container 11 defines a refrigeration space; the first evaporation line 134 is wound from top to bottom around the outer wall of the inner container 11; the second evaporation line 135 is wound from top to bottom around the outer wall of the inner container 11, spaced apart from the first evaporation line 134. The second evaporation line 135 is wound in a dense pattern at the top and sparse pattern at the bottom, so that the refrigeration space forms multiple refrigeration layers in height; and / or, a control device for the refrigerator 10, as in the above-mentioned embodiment, is installed on the body of the refrigerator 10.

[0106] Optionally, the first evaporation line 134 is evenly wound around the outer wall of the inner container 11 from top to bottom, and one or more turns of the second evaporation line 135 are wound around the outer wall of the inner container 11 between two adjacent turns of the first evaporation line 134 .

[0107] like Figure 1 As shown, the first evaporator line 134 is evenly wound around the outer wall of the inner tank 11 to achieve a uniform cooling effect from top to bottom. The second evaporator line 135 is wound around the outer wall of the inner tank 11 in a denser pattern at the top and sparser pattern at the bottom, achieving a cooling effect with decreasing cooling intensity from top to bottom. The winding density of the first evaporator line 134 is less than that of the second evaporator line 135, resulting in a lower cooling intensity for the first evaporator line 134 than for the second evaporator line 135. The number of windings of the second evaporator line 135 is set to twice that of the first evaporator line 134. When rapid cooling is required, the refrigerant is controlled to flow through both the first and second evaporator lines 134, 135, accelerating the cooling process. If frequent door openings cause the upper temperature to rise while the lower temperature does not rise significantly, the refrigerant is controlled to flow only through the second evaporator line 135. The second evaporator line 135 is distributed from top to bottom in a denser pattern at the top and sparser pattern at the bottom, rapidly cooling the upper space while reducing the cooling intensity for the lower space, thus achieving temperature equilibrium between the upper and lower spaces. When the refrigeration temperature in the inner tank 11 reaches the standard refrigeration temperature, the refrigerant is controlled to flow through the first evaporation pipeline 134 to maintain the refrigeration temperature in the inner tank 11 .

[0108] Optionally, the number of turns of the first evaporation line 134 around the outer wall of the inner container 11 is C1; the number of turns of the second evaporation line 135 around the outer wall of the inner container 11 is C2, wherein C1 is smaller than C2.

[0109] Optionally, C1 and C2 satisfy the following formula:

[0110] In some embodiments, the number of turns of the second evaporation line 135 around the outer wall of the inner container 11 is multiple times the number of turns of the first evaporation line 134 around the outer wall of the inner container 11 to increase the cooling speed.

[0111] Optionally, the refrigerator 10 further includes a detection system, which includes a plurality of temperature sensors 138 and a light sensor 139. The temperature sensors 138 are correspondingly disposed on the upper and lower layers of the refrigerator 10; and the light sensor 139 is correspondingly disposed on the cabinet door 12.

[0112] like Figure 1 As shown, temperature sensors 138 are distributed in the upper and lower layers of the inner tank 11 to detect the temperature of the upper and lower spaces in the refrigerated space. Light sensors 139 are set in the inner tank 11 corresponding to the door body, and record the door opening and closing information by sensing the changes in light during the door opening and closing process.

[0113] If the controller detects that the temperature rise in the upper layer exceeds the preset temperature range, the controller controls the refrigerant flow through the second evaporation line 135 and simultaneously controls the compressor 131 to operate at a high speed to quickly reduce the temperature in the upper layer. If the controller detects that both the upper and lower layer temperatures exceed the preset temperature range, the controller controls the refrigerant flow through the first evaporation line 134 and the second evaporation line 135 and simultaneously controls the compressor 131 to operate at a high speed to quickly reduce the temperature in the inner liner 11. If the controller detects that both the upper and lower layer temperatures in the inner liner 11 meet the preset temperature range, the controller controls the refrigerant flow through the first evaporation line 134 and simultaneously controls the compressor 131 to operate at a low speed to maintain the internal temperature of the inner liner 11.

[0114] Optionally, the detection system further includes a timer, which is used to set peak and valley time zones for electricity prices.

[0115] The timer sets the peak and valley time zones of electricity prices. During the valley period of electricity prices, the controller controls the preset temperature to be pulled down, and at the same time controls the refrigerant to flow through the first evaporation pipe 134 and the second evaporation pipe 135, and controls the compressor 131 to run at high speed to store cold energy in a short time. During the peak period of electricity prices, the controller controls the refrigerant to flow through the first evaporation pipe 134, and at the same time controls the compressor 131 to run at low speed to save more electricity.

[0116] Combine Figure 9 As shown, an embodiment of the present disclosure provides a control device for a refrigerator 10, including a processor 1000 and a memory 1001 storing program instructions. The processor 1000 is configured to execute a control method for the refrigerator 10 as described in any one of the above embodiments when running the program instructions.

[0117] Optionally, the control device for the refrigerator 10 may further include a communication interface 1003 and a bus 1002. The processor 1000, the communication interface 1003, and the memory 1001 may communicate with each other via the bus. The communication interface 1003 may be used for information transmission. The processor 1000 may invoke logic instructions in the memory 1001 to execute the control method for the refrigerator 10 of the above embodiment.

[0118] In addition, the logic instructions in the memory 1001 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0119] Memory 1001, as a storage medium, can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the methods in the embodiments of the present disclosure. Processor 1000 executes the program instructions / modules stored in memory 1001 to perform functional applications and data processing, thereby implementing the control method for the refrigerator 10 in the above-mentioned embodiment.

[0120] The memory 1001 may include a program storage area and a data storage area. The program storage area may store an operating system and application programs required for at least one function. The data storage area may store data generated based on the use of the terminal device. Furthermore, the memory 1001 may include a high-speed random access memory 1001 and a non-volatile memory 1001.

[0121] The embodiments of the present disclosure provide a refrigerator 10, including a control device for the refrigerator 10 as described in any of the above embodiments. The control device for the refrigerator 10 is installed in the refrigerator 10. 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 device for controlling the air-conditioning system can be adapted to a feasible product body, thereby realizing other feasible embodiments.

[0122] An embodiment of the present disclosure provides a storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned method for controlling the refrigerator 10 .

[0123] The aforementioned storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0124] 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 causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM) 1001, a random access memory (RAM) 1001, a magnetic disk or an optical disk, and other media that can store program code, or a transient storage medium.

[0125] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to also include plural forms. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variations "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups of these. In the absence of further restrictions, an element defined by the sentence "comprising a..." does not exclude the presence of other identical elements in the process, method or device that includes the element. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments can be referenced to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can be found in the description of the method part.

[0126] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. The technicians will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0127] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units can be merely a logical functional division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, and can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. In addition, the functional units in the embodiments of the present disclosure may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0128] The flowcharts and block diagrams in the accompanying drawings show the possible implementation architectures, functions and operations of the systems, methods and computer program products according to the embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, program segment or part of the code, and the module, program segment or part of the code contains one or more executable instructions for implementing the specified logical functions. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in an order different from that disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified function or action, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A control method for a refrigerator, characterized in that: The evaporator of the refrigerator includes an inner container, a first evaporation pipeline, and a second evaporation pipeline, wherein the inner container defines a refrigeration space, the first evaporation pipeline and the second evaporation pipeline are wound around the outer wall of the inner container from top to bottom, and the second evaporation pipeline is wound in a dense manner at the top and sparse manner at the bottom, so that the refrigeration space forms multiple refrigeration layers in height; the control method includes: Obtain the upper cooling layer temperature of the cooling space; The operating states of the first evaporation pipeline and the second evaporation pipeline are controlled according to the relationship between the temperature of the upper refrigeration layer and the refrigeration temperature threshold.

2. The control method according to claim 1, characterized in that: According to the relationship between the temperature of the upper refrigeration layer and the refrigeration temperature threshold, the operating states of the first evaporation pipeline and the second evaporation pipeline are controlled, including: When the temperature of the upper refrigeration layer is greater than or equal to the refrigeration temperature threshold, controlling the refrigerant to flow through the first evaporation pipeline and the second evaporation pipeline at the same time; When the temperature of the upper refrigeration layer is lower than the refrigeration temperature threshold, the refrigerant is controlled to flow through the first evaporation pipeline.

3. The control method according to claim 1, wherein: According to the relationship between the temperature of the upper refrigeration layer and the refrigeration temperature threshold, the operating states of the first evaporation pipeline and the second evaporation pipeline are controlled, including: Get the door opening frequency of the refrigerator; When the door opening frequency is greater than or equal to the preset frequency and the temperature of the upper refrigeration layer is greater than or equal to the refrigeration temperature threshold, controlling the refrigerant to flow through the second evaporation pipe; When the door opening frequency is greater than or equal to the preset frequency and the temperature of the upper refrigeration layer is less than the refrigeration temperature threshold, controlling the refrigerant to flow through the first evaporation pipeline; When the door opening frequency is less than the preset frequency and the temperature of the upper refrigeration layer is greater than or equal to the refrigeration temperature threshold, the refrigerant is controlled to flow through the first evaporation pipeline and the second evaporation pipeline at the same time; When the door opening frequency is less than the preset frequency and the temperature of the upper refrigeration layer is less than the refrigeration temperature threshold, the refrigerant is controlled to flow through the first evaporation pipeline.

4. The control method according to claim 1, wherein: The cooling temperature threshold is determined as follows: Obtain peak and valley information on electricity consumption in the area where the refrigerator is located; Determine the refrigeration temperature threshold of the refrigerator based on peak and valley electricity consumption information.

5. The control method according to claim 4, characterized in that: Determine the refrigerator's refrigeration temperature threshold based on peak and valley power consumption information, including: When the power consumption peak-valley information indicates a power consumption peak, determining the refrigeration temperature threshold of the refrigerator to be the first refrigeration temperature threshold; and / or, When the power consumption peak-valley information indicates a low power consumption, determining the refrigeration temperature threshold of the refrigerator to be a second refrigeration temperature threshold; The first refrigeration temperature threshold is lower than the second refrigeration temperature threshold.

6. The control method according to claim 5, characterized in that: The first refrigeration temperature threshold and / or the second refrigeration temperature threshold are determined as follows: T1=T0-R1,T2=T0+R2 Wherein, T1 is the first refrigeration temperature threshold, T2 is the second refrigeration temperature threshold, T0 is the standard refrigeration temperature threshold, R1 is the first temperature adjustment parameter, and R2 is the second temperature adjustment parameter.

7. The control method according to any one of claims 1 to 6, characterized in that: Also includes: The operating speed of the compressor is controlled according to the relationship between the temperature of the upper refrigeration layer and the refrigeration temperature threshold.

8. A control device for a refrigerator, characterized in that: The invention comprises a processor and a memory storing program instructions, wherein the processor is configured to execute the control method for a refrigerator according to any one of claims 1 to 7 when running the program instructions.

9. A refrigerator, characterized in that: The evaporator of the freezer includes: The inner tank defines the refrigeration space; The first evaporation pipeline is wound around the outer wall of the inner tank from top to bottom; The second evaporation pipeline is wound around the outer wall of the inner container from top to bottom, separated from the first evaporation pipeline, and the second evaporation pipeline is wound in a manner of dense at the top and sparse at the bottom, so that the refrigeration space forms multiple refrigeration layers in height; and / or, The control device for a refrigerator as claimed in claim 8 is installed on the body of the refrigerator.

10. The refrigerator according to claim 9, characterized in that: The first evaporation pipeline is evenly wound around the outer wall of the inner container from top to bottom, and one or more circles of the second evaporation pipeline are wound around the outer wall of the inner container between two adjacent circles of the evaporation pipeline of the first evaporation pipeline.

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