Refrigerator

Abstract

The application discloses a refrigerator, which realizes decoupled distribution of ice-making cold air and freezing chamber cold air by arranging a first cold air inlet and a third cold air inlet special for an ice-making assembly in the freezing chamber and arranging an adjusting member to dynamically control the opening degrees of the first cold air inlet and the third cold air inlet. When the ice-making assembly is working, a controller accurately calculates a target opening degree of the third cold air inlet based on the ice-making cavity volume of the ice-making assembly, the target temperature of the ice-making assembly, the initial temperature of ice-making water and the cold air temperature after passing through a first evaporator, and simultaneously closes the first cold air inlet to appropriately reduce the freezing chamber cold air, so that the ice-making assembly is supplied with the cold air amount suitable for ice-making demand through the third cold air inlet, the cold air demand of the ice-making assembly is met, and the problems of energy efficiency deterioration and temperature fluctuation caused by forced reduction of the freezing chamber temperature are avoided, and the ice-making efficiency and the freezing chamber temperature stability are effectively balanced.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, and in particular to a refrigerator. Background Technology

[0002] As people's living standards continue to improve, the frequency of using ice in daily life is increasing, and integrated ice-making devices in refrigerators are gradually becoming mainstream. In common refrigerators with ice-making devices, the ice-making device is located in the freezer compartment, and the ice-making device and the freezer compartment share an evaporator. However, the temperature requirements of the freezer compartment and the ice-making device are different. Especially when the target temperature of the freezer compartment is high, the refrigerator will not be able to meet the temperature requirements of the ice-making device if it operates at the target temperature of the freezer compartment, thus failing to meet the ice-making needs.

[0003] In related technologies, in order to meet the temperature requirements of ice-making devices, the ice-making function of the ice-making device is achieved by forcibly lowering the temperature setting of the freezer compartment. Especially when the ice-making device is running the quick-freeze function, the freezer compartment is forced to operate at the coldest temperature setting, which has an adverse effect on the temperature control of the freezer compartment.

[0004] Therefore, it is necessary to optimize the refrigerator's cooling control logic. Summary of the Invention

[0005] To address the aforementioned problems, this application provides a refrigerator, including a cabinet, an ice-making device, a first evaporator, an adjusting component, and a controller. The cabinet interior defines a freezer compartment, which has a first cold air inlet and at least one second cold air inlet. The first and second cold air inlets are used to deliver cold air generated by the first evaporator into the freezer compartment. The ice-making device includes a water tank assembly and an ice-making assembly. The water tank assembly stores water for ice making, and the ice-making assembly obtains the water from the water tank assembly and freezes it into ice. The ice-making assembly is disposed within the freezer compartment. The freezer compartment has a third cold air inlet connected to the ice-making assembly, used to deliver cold air generated by the first evaporator into the ice-making assembly. The first evaporator is disposed outside the freezer compartment and provides cold air to the freezer compartment and the ice-making assembly. The adjusting component is used to adjust the opening degree of the first and third cold air inlets to control the amount of cold air delivered to the freezer compartment through the first cold air inlet and the amount of cold air delivered to the ice-making assembly through the third cold air inlet.

[0006] The controller is electrically connected to the regulating component and is configured to: when the freezer compartment has a cooling demand and the ice-making component has an ice-making demand, determine the target opening degree of the third cold air inlet based on the ice-making cavity volume of the ice-making component, the target temperature of the ice-making component, the initial temperature of the water used for ice making, and the temperature of the cold air after passing through the first evaporator; control the regulating component to adjust the opening degree of the third cold air inlet to the target opening degree and close the first cold air inlet; wherein, when the opening degree of the first cold air inlet decreases, the amount of cold air sent into the ice-making component through the third cold air inlet increases.

[0007] Thus, in the above technical solution, by setting a first cold air inlet in the freezer compartment and a third cold air inlet dedicated to the ice-making component, and configuring an adjustment mechanism to dynamically control the opening of the first and third cold air inlets, the decoupled distribution of ice-making cold air and freezer compartment cold air is achieved. When the ice-making component is working, the controller accurately calculates the target opening of the third cold air inlet based on the ice-making cavity volume of the ice-making component, the target temperature of the ice-making component, the initial temperature of the ice-making water, and the temperature of the cold air after passing through the first evaporator. At the same time, the controller closes the first cold air inlet to appropriately reduce the cold air in the freezer compartment, thereby delivering a cold air volume adapted to the ice-making demand to the ice-making component through the third cold air inlet. This satisfies the cold air demand of the ice-making component while avoiding energy efficiency degradation and temperature fluctuations caused by forcibly lowering the freezer compartment temperature, effectively balancing ice-making efficiency and freezer compartment temperature stability.

[0008] In some embodiments of this application, determining the target opening of the third cold air inlet based on the ice-making cavity volume of the ice-making component, the target temperature of the ice-making component, the initial temperature of the ice-making water, and the temperature of the cold air after passing through the first evaporator includes: obtaining a first temperature difference based on the target temperature of the ice-making component and the initial temperature of the ice-making water; obtaining a second temperature difference based on the target temperature of the ice-making component and the temperature of the cold air after passing through the first evaporator; and determining the target opening of the third cold air inlet based on the ratio of the first temperature difference and the second temperature difference and the ice-making cavity volume of the ice-making component, such that the amount of cold air supplied to the ice-making component through the third cold air inlet is positively correlated with the ratio of the first temperature difference and the second temperature difference and the ice-making cavity volume of the ice-making component.

[0009] In the above technical solution, the first temperature difference reflects the temperature range that the water needs to be reduced, and the second temperature difference reflects the difference between the cold air and the target ice-making temperature. The required cold air volume varies depending on the volume of the ice-making cavity. The target opening of the third cold air inlet is determined based on the ratio of the first temperature difference and the second temperature difference and the volume of the ice-making cavity of the ice-making component, so that the supply of cold air can closely match the actual ice-making needs.

[0010] In some embodiments of this application, obtaining a first temperature difference based on the target temperature of the ice-making component and the initial temperature of the ice-making water includes: multiplying the target temperature of the ice-making component by a value of 4 to obtain a first product, and multiplying the initial temperature of the ice-making water by a value of 3.5 to obtain a second product; calculating the difference between the first product and the second product to obtain the first temperature difference.

[0011] In the above technical solution, by using a linear combination of 4 times the target temperature of the ice-making component and 3.5 times the initial temperature of the ice-making water, the latent heat and sensible heat of water freezing into ice are implicitly matched quantitatively. The latent heat of phase change and the sensible heat of temperature gradient are dynamically weighted so that the obtained first temperature difference can accurately determine the target opening of the third cold air inlet in subsequent steps.

[0012] In some embodiments of this application, determining the target opening degree of the third cold air inlet based on the ratio of the first temperature difference to the second temperature difference and the ice-making cavity volume of the ice-making component includes: determining the target cold air volume delivered to the ice-making component through the third cold air inlet based on the ratio of the first temperature difference to the second temperature difference, the ice-making cavity volume of the ice-making component, and a first coefficient; and determining the target opening degree of the third cold air inlet based on the target cold air volume; wherein the target cold air volume is positively correlated with the first coefficient, the first coefficient is obtained based on the product of a second coefficient and a heat transfer coefficient, the second coefficient is determined based on the relationship between the specific heat capacity of water and the specific heat capacity of air and the latent heat of water freezing into ice, and the heat transfer coefficient is a dimensionless proportionality coefficient characterizing the heat exchange efficiency between the ice-making component and the surrounding air.

[0013] The above technical solution comprehensively considers the ratio of the first temperature difference to the second temperature difference, the ice-making cavity volume of the ice-making component, and a first coefficient determined based on the specific heat capacity of water, the specific heat capacity of air, and the latent heat of water's freezing, to calculate the target cold air volume. This closely integrates with the physical essence of the ice-making process. The specific heat capacity of water determines the amount of heat absorbed or released required for its temperature change, the specific heat capacity of air affects the ability of cold air to carry heat, and the latent heat of water's freezing is the large amount of heat released when water turns into ice. By incorporating these factors into the calculation, the target cold air volume that meets the ice-making requirements can be accurately determined, avoiding insufficient cold air volume leading to slow ice-making or excessive cold air volume causing energy waste, thus effectively improving ice-making efficiency. Based on this, the target opening of the third cold air inlet is determined according to the calculated target cold air volume, achieving precise control of the cold air supply. In addition, the heat transfer coefficient reflects the efficiency of the ice-making component in exchanging heat with the surrounding air in the actual operating environment. The first coefficient is determined by combining the second coefficient, which is based on the relationship between the specific heat capacity of water and air and the latent heat of water freezing into ice, with the heat transfer coefficient. This makes the calculation of the target cold air volume more consistent with the actual ice-making scenario and improves the accuracy of the calculation.

[0014] In some embodiments of this application, the interior of the housing defines a cold storage compartment, the water tank assembly is disposed within the cold storage compartment, and the initial temperature of the ice-making water is the compartment temperature of the cold storage compartment.

[0015] In the above technical solution, the water tank assembly allows the ice-making water to cool naturally and maintain a low temperature. Low-temperature water reaches its freezing point faster during ice making, shortening the ice-making cycle and improving efficiency. Furthermore, the refrigerator compartment temperature is relatively stable and less affected by external environmental factors. The water tank assembly prevents water temperature fluctuations caused by changes in ambient temperature, thus ensuring the stability of the ice-making process and resulting in more uniform ice quality.

[0016] In some embodiments of this application, a second evaporator and a refrigeration pipeline are further included. The second evaporator is used to provide cold air to the refrigerator compartment. The controller is configured to: when there is a cooling demand in the freezer compartment and an ice-making component has an ice-making demand, confirm whether there is a cooling demand in the refrigerator compartment; when there is a cooling demand in the refrigerator compartment, switch the refrigerant in the refrigeration pipeline to flow through the second evaporator and not through the first evaporator; when the refrigeration of the refrigerator compartment reaches a preset condition, switch the refrigerant in the refrigeration pipeline to flow through the first evaporator and not through the second evaporator, and control the adjusting component to adjust the opening of the third cold air inlet to the target opening and close the first cold air inlet.

[0017] In the above technical solution, when both the freezer compartment and the ice-making component have cooling needs, it is first determined whether the refrigerator compartment has cooling needs. If the refrigerator compartment has cooling needs, the refrigerant is switched to flow through the second evaporator to ensure that the refrigerator compartment can receive cold air supply in a timely manner. Moreover, the refrigerator compartment can often quickly reach the shutdown temperature, and the cooling effect of the freezer compartment and the ice-making component will not be affected by the cooling of the refrigerator compartment.

[0018] In some embodiments of this application, the controller is further configured to: when the freezer compartment has a cooling demand and the ice-making component has an ice-making demand, if the target temperature of the freezer compartment is within a first temperature range, then run a first start-stop procedure; otherwise, run a second start-stop procedure, wherein the first start-stop procedure is used to extend the cooling time of the freezer compartment.

[0019] In the above technical solution, when the freezer compartment is in a warmer setting, the first start-stop program is run to extend the cooling time of the freezer compartment, which can extend the cooling time of the ice-making component, thereby ensuring the ice-making effect of the ice-making component when the freezer compartment is in a warmer setting.

[0020] In some embodiments of this application, under the first start-up and shutdown procedure, the start-up temperature corresponding to the same target temperature of the freezer is the same as that under the second start-up and shutdown procedure, and the shutdown temperature corresponding to the same target temperature of the freezer is lower than the shutdown temperature under the second start-up and shutdown procedure.

[0021] In the above technical solution, under the first start-up and shutdown procedure, the start-up temperature corresponding to the target temperature is kept unchanged, while the shutdown temperature is lowered, thereby increasing the cooling time of the freezer compartment and thus extending the cooling time of the ice-making component. The control logic is simple.

[0022] In some embodiments of this application, a refrigeration duct is further included, which is connected to the third cold air inlet. The cold air generated by the first evaporator reaches the third cold air inlet after passing through the refrigeration duct. When the regulating member is in the closed state, the regulating member closes the first area of ​​the third cold air inlet, and the second area of ​​the third cold air inlet is connected to the refrigeration duct and the ice-making assembly.

[0023] In the above technical solution, when the regulating component is in the closed state, it only closes the first area of ​​the third cold air inlet, while the second area remains connected to the freezing air duct and the ice-making component. This ensures that a certain amount of cold air is continuously supplied to the ice-making component, preventing the ice-making component from overheating and causing adverse effects on the freezer compartment.

[0024] In some embodiments of this application, when the freezer compartment has a cooling demand and the ice-making component does not have an ice-making demand, the controller is configured to: control the adjusting member to adjust the opening of the first cold air inlet to the maximum opening and close the first area.

[0025] In the above technical solution, when there is no need for ice making in the ice-making component, the opening of the first cold air inlet is adjusted to the maximum opening, and the amount of cold air entering the freezer is the largest, which shortens the cooling time of the freezer. When the first area is closed, the amount of cold air entering the ice-making component is minimized. The smaller amount of cold air can maintain the temperature of the ice-making component at a low level without causing more energy waste.

[0026] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the specification, serve to explain the principles of this application.

[0028] Figure 1 A schematic diagram showing the hidden portion of a refrigerator body and door according to an embodiment of this application is shown.

[0029] Figure 2 This illustration shows a schematic diagram from another angle behind the refrigerator's concealed portion and door, according to one embodiment of this application.

[0030] Figure 3 A schematic diagram of a refrigerator section structure according to an embodiment of this application is shown.

[0031] Figure 4 A partial structural block diagram of a refrigerator according to an embodiment of this application is shown.

[0032] Figure 5 A flowchart illustrating the refrigeration control process of a refrigerator according to an embodiment of this application is shown.

[0033] Figure 6 It shows Figure 5 The detailed flowchart of step S510 is shown.

[0034] Figure 7 It shows Figure 6 The detailed flowchart of step S630 is shown.

[0035] Figure 8 A flowchart illustrating the refrigeration control process of a refrigerator according to another embodiment of this application is shown.

[0036] Figure 9 The ice-making and freezing logic of one embodiment of this application is shown.

[0037] The annotations in the attached figures are explained as follows: 11. Inner liner; 12. Freezer compartment; 121. First cold air inlet; 122. Second cold air inlet; 123. Third cold air inlet; 13. Refrigerator compartment; 21. Water tank assembly; 22. Ice-making assembly; 3. Adjustment components; 41. First evaporator; 42. Second evaporator; 43. Freezer air duct; 44. Refrigeration fan; 45. Compressor; 51. Cold air temperature detector; 52. Refrigeration temperature detector; 53. Freezer temperature detector; 54. Ambient temperature detector; 6. Controller. Detailed Implementation

[0038] To make the objectives, implementation methods and advantages of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments.

[0039] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0040] In the description of this application, it should be understood that the terms "front", "rear", "inner", "outer", "upper", "middle", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0041] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0044] In related technologies, refrigerators with ice makers are prone to freezing compartment temperature runaway. This is because the ice maker and the freezer share an evaporator. In order to meet the temperature requirements of the ice maker, the freezer temperature setting is forcibly lowered, especially when the ice maker is running the quick-freeze function, which forces the freezer to operate at the coldest temperature setting, resulting in freezing compartment temperature runaway.

[0045] In view of this, this application designs a novel cold air inlet for the freezer compartment and a refrigeration control logic. By setting a first cold air inlet and a dedicated third cold air inlet for the ice-making component in the freezer compartment, and configuring an adjuster to dynamically control the opening of the first and third cold air inlets, the decoupled distribution of ice-making cold air and freezer compartment cold air is achieved. When the ice-making component is working, the controller accurately calculates the target opening of the third cold air inlet based on the ice-making cavity volume of the ice-making component, the target temperature of the ice-making component, the initial temperature of the water used for ice making, and the temperature of the cold air after passing through the first evaporator. Simultaneously, the controller closes the first cold air inlet to appropriately reduce the amount of cold air in the freezer compartment. Thus, the controller delivers a cold air volume adapted to the ice-making demand to the ice-making component through the third cold air inlet, satisfying the cold air requirements of the ice-making component while avoiding energy efficiency degradation and temperature fluctuations caused by forcibly lowering the freezer compartment temperature, effectively balancing ice-making efficiency and freezer compartment temperature stability.

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] Figure 1 This illustration shows a schematic diagram of the refrigerator's concealed portion, including the cabinet and door, according to one embodiment of this application. Figure 2 This illustration shows another angle view of the refrigerator's concealed portion, including the cabinet and door, according to one embodiment of this application. Figure 3 A schematic diagram of a refrigerator section structure according to an embodiment of this application is shown.

[0048] The refrigerator of this embodiment includes a cabinet (not shown in the figure), which serves as the supporting structure of the refrigerator and has an internal accommodating space (not shown in the figure). The accommodating space of the cabinet may house other components of the refrigerator, such as a refrigeration system, air duct assembly, and circuit structure. The external shape of the cabinet can be designed as needed, for example, it can be a hollow cuboid shape.

[0049] like Figure 1 As shown, the refrigerator's interior has multiple inner liner 11, which define multiple refrigeration compartments, each providing space for storing items. These multiple refrigeration compartments allow for partitioned storage of items within the refrigerator, improving the user experience.

[0050] Multiple refrigeration compartments can be arranged along the height of the enclosure. Multiple refrigeration compartments can also be arranged along the width of the enclosure.

[0051] In some embodiments, the plurality of refrigeration compartments include a freezer compartment 12 and a refrigerator compartment 13. The number of freezer compartments 12 may be one or more. Similarly, the number of refrigerator compartments 13 may be one or more.

[0052] Understandably, each refrigerator compartment 13 is a refrigeration compartment, and each freezer compartment 12 is a refrigeration compartment.

[0053] like Figure 3 As shown, the freezer compartment 12 is provided with a first cold air inlet 121 and at least one second cold air inlet 122. The first cold air inlet 121 and the second cold air inlet 122 are used to deliver cold air generated by the first evaporator into the freezer compartment 12. The opening degree of the first cold air inlet 121 is adjustable. The second cold air inlet 122 is kept open to ensure that the cold air generated by the first evaporator can always enter the freezer compartment 12 through the second cold air inlet 122.

[0054] In some embodiments, the number of first cold air inlets 121 is one. The number of second cold air inlets 122 may be one or more.

[0055] In some embodiments, such as Figure 3 As shown, there are five second cold air inlets 122, two of which are spaced apart at the bottom of the freezer compartment 12, two of which are spaced apart at the middle of the freezer compartment 12, and one of which is located at the top of the freezer compartment 12. The second cold air inlet 122 is located at the same height as the first cold air inlet 121.

[0056] The front of the cabinet has an item loading / unloading opening (not shown in the diagram), which connects to the interior space of the refrigeration compartment, allowing items to be placed into or removed from the refrigeration compartment. The front of the cabinet also has a door (not shown in the diagram), which is movably positioned at the item loading / unloading opening to open or close, thereby opening or closing the interior space of the refrigeration compartment. There can be one or more doors.

[0057] The refrigerator in this embodiment of the application also includes an ice-making device, such as... Figure 1 As shown, the ice-making device includes a water tank assembly 21 and an ice-making assembly 22.

[0058] The water tank assembly 21 is used to store water for ice making. In some embodiments, the water tank assembly 21 is disposed inside the cold storage compartment 13.

[0059] The refrigerator compartment 13 is typically maintained at a low temperature of 0-10℃. The water tank assembly 21 placed within it allows the ice-making water to cool naturally and maintain a low temperature. Low-temperature water reaches its freezing point faster during ice making, shortening the ice-making cycle and improving efficiency. Furthermore, the temperature of the refrigerator compartment 13 is relatively stable and less affected by the external environment. The water tank assembly 21 prevents water temperature fluctuations caused by changes in ambient temperature, thus ensuring the stability of the ice-making process and resulting in more uniform ice quality.

[0060] The ice-making assembly 22 is used to obtain ice-making water from the water tank assembly 21 and condense the ice-making water into ice. The ice-making assembly 22 is located in the freezer compartment 12.

[0061] To provide cold air to the ice-making assembly 22, the freezer compartment 12 is provided with a third cold air inlet 123, which is connected to the ice-making assembly 22 and is used to send the cold air generated by the first evaporator into the ice-making assembly 22.

[0062] Understandably, the cold air supplied through the third cold air inlet 123 will only enter the ice-making component 22 and will not enter other areas of the freezer compartment 12. The third cold air inlet 123 can be connected to the ice-making component 22 through an independent air duct so that the cold air supplied through the third cold air inlet 123 will not enter other areas of the freezer compartment 12, or it can be connected to the ice-making component 22 through a cold air inlet that is closely attached to the ice-making component 22.

[0063] The refrigerator in this embodiment of the application further includes an adjusting member 3, which is used to adjust the opening degree of the first cold air inlet 121 and the third cold air inlet 123 to control the amount of cold air sent into the freezer compartment 12 through the first cold air inlet 121 and the amount of cold air sent into the ice-making component 22 through the third cold air inlet 123.

[0064] The adjusting component 3 may include a lever damper, which adjusts the opening of the first cold air inlet 121 and the third cold air inlet 123. A lever damper may be provided at the first cold air inlet 121 and the third cold air inlet 123 respectively.

[0065] Understandably, the amount of cold air delivered into the freezer compartment 12 through the first cold air inlet 121 refers to the amount of cold air delivered into the area outside the ice-making component 22 in the freezer compartment 12 through the first cold air inlet 121. These areas are used to place items that need to be frozen, such as food.

[0066] The refrigerator in this embodiment also includes a refrigeration system for providing cold air to the cooling compartment and the ice-making device. The refrigeration system includes a compressor, a condenser, a throttling device, an evaporator, and refrigeration piping (not shown in the figures). The compressor, condenser, throttling device, and evaporator are connected via the refrigeration piping. When the compressor operates, low-temperature, low-pressure refrigerant is drawn into the compressor and compressed into high-temperature, high-pressure superheated gas within the compressor cylinder before being discharged into the condenser. The high-temperature, high-pressure refrigerant gas dissipates heat through the condenser, its temperature continuously decreasing until it is gradually cooled into room-temperature, high-pressure saturated vapor, and further cooled into a saturated liquid. The pressure of the refrigerant remains almost constant throughout the condensation process. The throttling device throttles the high-pressure room-temperature liquid into low-temperature, low-pressure wet vapor, creating conditions for efficient heat absorption in the evaporator. The low-temperature, low-pressure refrigerant returns to the compressor after passing through the evaporator. This process is repeated, allowing the evaporator to continuously provide cold air to the cooling compartment and the ice-making device, thereby maintaining the cooling compartment at the set temperature and meeting the ice-making needs of the ice-making device.

[0067] In some embodiments, the evaporator includes a first evaporator 41. The first evaporator 41 is disposed outside the freezer compartment 12, possibly at the back of the freezer compartment 12, and is used to provide cold air to the freezer compartment 12 and the ice-making assembly 22.

[0068] In some embodiments, the evaporator includes a first evaporator 41 and a second evaporator 42. The second evaporator 42 is disposed inside the cabinet, for example, at the back of the refrigerator compartment 13, and is used to provide cold air to the refrigerator compartment 13.

[0069] The first evaporator 41 provides cold air to the freezer compartment 12 and the ice-making component 22, and the second evaporator 42 provides cold air to the refrigerator compartment 13. The cooling of the freezer compartment 12 and the refrigerator compartment 13 can be adjusted and operated independently, which can improve the temperature stability and uniformity of the cooling compartments. In addition, the evaporator can be activated and the air volume matched as needed, reducing the burden on the compressor. The operation of the refrigeration system is more stable and reliable, and the refrigerator has higher energy efficiency under partial load conditions.

[0070] Meanwhile, by switching the refrigerant flow direction in the refrigeration pipeline, the refrigerant can be selectively controlled to flow through the first evaporator 41 or the second evaporator 42, thereby controlling whether the freezer compartment 12 and the refrigerator compartment 13 are refrigerated.

[0071] In some embodiments, such as Figure 3 As shown, the refrigerator also includes a freezer air duct 43, which connects to a third cold air inlet 123. The cold air generated by the first evaporator 41 passes through the freezer air duct 43 and reaches the third cold air inlet 123. When the adjusting member 3 is in the closed state, the adjusting member 3 closes the first area of ​​the third cold air inlet 123, and the second area of ​​the third cold air inlet 123 connects the freezer air duct 43 and the ice-making assembly 22.

[0072] In some embodiments, the first region and the second region constitute a third cold air inlet 123, with the first region located above the second region.

[0073] When the regulating component 3 is in the closed state, it only closes the first area of ​​the third cold air inlet 123, while the second area remains connected to the freezing air duct 43 and the ice-making component 22. This ensures that a certain amount of cold air is continuously supplied to the ice-making component 22, preventing the ice-making component 22 from becoming too hot and causing adverse effects on the freezer compartment 12.

[0074] Of course, it is also possible to set the adjustment component 3 to completely close the third cold air inlet 123 when it is in the closed state, and ensure that a certain amount of cold air is continuously sent into the ice-making component 22 by controlling the opening of the third cold air inlet 123 to always be greater than zero.

[0075] Understandably, the larger the opening of the third cold air inlet 123, the greater the amount of cold air delivered to the ice-making component 22 through the third cold air inlet 123. Similarly, the larger the opening of the first cold air inlet 121, the greater the amount of cold air delivered to the freezer compartment 12 through the first cold air inlet 121.

[0076] A refrigeration fan 44 is provided in the refrigeration air duct 43. The refrigeration fan 44 is located on the air outlet side of the first evaporator 41 and is used to blow the cold air generated by the first evaporator 41 to the first cold air inlet 121, the second cold air inlet 122 and the third cold air inlet 123.

[0077] Figure 4 A partial structural block diagram of a refrigerator according to an embodiment of this application is shown.

[0078] like Figure 4 As shown, the refrigerator in this embodiment of the application further includes a cold air temperature detector 51. The cold air temperature detector 51 is used to detect the temperature of the cold air generated by the first evaporator 41, that is, to detect the temperature of the cold air after passing through the first evaporator 41.

[0079] The air temperature detector 51 can be installed on the first evaporator 41 or downstream of the first evaporator 41.

[0080] The number of air conditioning temperature detectors 51 can be one or more. When there are multiple air conditioning temperature detectors 51, the temperature of the cold air generated by the first evaporator 41 can be obtained based on the temperature data detected by the multiple air conditioning temperature detectors 51. For example, the average value of the temperature data detected by the multiple air conditioning temperature detectors 51 can be used as the temperature of the cold air generated by the first evaporator 41.

[0081] The refrigerator in this embodiment of the application also includes a compartment temperature detector, which is installed in the refrigeration compartment to detect the compartment temperature of the refrigeration compartment, so that the refrigerator controller can control the operation of related components according to the compartment temperature of the refrigeration compartment.

[0082] A refrigeration room can be equipped with one room temperature detector or multiple room temperature detectors. When a refrigeration room is equipped with multiple room temperature detectors, the room temperature of the refrigeration room can be obtained based on the temperature data detected by the multiple room temperature detectors. For example, the average value of the temperature data detected by the multiple room temperature detectors can be used as the room temperature of the refrigeration room.

[0083] In some embodiments, the compartment temperature detectors include a refrigeration temperature detector 52 and a freezing temperature detector 53. The refrigeration temperature detector 52 is disposed within the refrigeration compartment 13 and is used to detect the actual temperature within the refrigeration compartment 13, that is, the initial temperature of the ice-making water. Alternatively, a temperature detector can be disposed within the water tank assembly 21 to detect the initial temperature of the ice-making water. The freezing temperature detector 53 is disposed within the freezing compartment 12 and is used to detect the actual temperature within the freezing compartment 12.

[0084] The refrigerator in this embodiment of the application also includes an ambient temperature detector 54, which is disposed outside the refrigerator body and is used to detect the ambient temperature outside the refrigerator body so that the refrigerator controller can control the operation of related components according to the ambient temperature of the environment.

[0085] The ambient temperature detector 54 can be installed on the top wall of the enclosure or in other locations within the enclosure.

[0086] The refrigerator in this embodiment also includes a controller 6, which is electrically connected to the compressor 45. The controller 6 can send control signals to the compressor 45 to control its start-up or shutdown, thereby maintaining the temperature inside the refrigeration compartment and the ice-making assembly 22 at a set temperature through the start-up and shutdown of the compressor 45. The controller 6 can be electrically connected to each temperature sensor, receiving temperature signals from each sensor and controlling corresponding components based on these signals. The controller 6 can also be electrically connected to the regulator 3, sending control signals to it to switch it to a corresponding opening angle, thereby adjusting the distribution of cold air volume between the first cold air inlet 121 and the third cold air inlet 123. The controller 6 can also be connected to other electronic control devices in the refrigerator, such as the refrigeration fan 44, to realize a series of control processes within the refrigerator.

[0087] Controller 6 is configured to execute a cooling program, such as Figure 5As shown, the refrigeration process includes at least steps S510 to S520, which are described in detail below.

[0088] In step S510, when there is a cooling demand in the freezer and an ice-making component has an ice-making demand, the target opening degree of the third cold air inlet is determined based on the ice-making cavity volume of the ice-making component, the target temperature of the ice-making component, the initial temperature of the water used for ice making, and the temperature of the cold air after passing through the first evaporator.

[0089] In one embodiment where the water tank assembly is located inside the refrigerator compartment, the initial temperature of the water used for ice making is the compartment temperature of the refrigerator compartment.

[0090] In step S520, the control adjuster adjusts the opening of the third cold air inlet to the target opening and closes the first cold air inlet.

[0091] When the opening of the first cold air inlet decreases, the amount of cold air supplied to the ice-making component through the third cold air inlet increases.

[0092] exist Figure 5 In the illustrated embodiment, the target opening of the third cold air inlet is accurately calculated based on the ice-making cavity volume of the ice-making component, the target temperature of the ice-making component, the initial temperature of the water used for ice making, and the temperature of the cold air after passing through the first evaporator. At the same time, the first cold air inlet is closed to appropriately reduce the cold air in the freezer compartment. This ensures that the amount of cold air supplied to the ice-making component through the third cold air inlet matches the cold air demand of the ice-making component. This satisfies the temperature requirement for rapid ice making by the ice-making component while avoiding energy efficiency degradation and temperature fluctuations caused by forcibly lowering the freezer compartment temperature, effectively balancing ice-making efficiency and freezer compartment temperature stability.

[0093] In some embodiments, such as Figure 6 As shown, determining the target opening degree of the third cold air inlet based on the ice-making cavity volume of the ice-making component, the target temperature of the ice-making component, the initial temperature of the water used for ice making, and the temperature of the cold air after passing through the first evaporator includes at least the following steps S610 to S630, which are described in detail below.

[0094] In step S610, a first temperature difference is obtained based on the target temperature of the ice-making component and the initial temperature of the water used for ice making.

[0095] The first temperature difference is greater than zero.

[0096] In some embodiments, in step S610, obtaining a first temperature difference based on the target temperature of the ice-making component and the initial temperature of the water used for ice making includes: multiplying the target temperature of the ice-making component by a value of 4 to obtain a first product, and multiplying the initial temperature of the water used for ice making by a value of 3.5 to obtain a second product; calculating the difference between the first product and the second product to obtain the first temperature difference.

[0097] By linearly combining the target temperature of the ice-making component (4 times) with the initial temperature of the ice-making water (3.5 times), a quantitative matching of the latent heat and sensible heat of water freezing into ice is implicitly achieved. The latent heat of phase change and the sensible heat of temperature gradient are dynamically weighted so that the first temperature difference can accurately determine the target opening of the third cold air inlet in subsequent steps.

[0098] In step S620, a second temperature difference is obtained based on the target temperature of the ice-making component and the temperature of the cold air after passing through the first evaporator.

[0099] The second temperature difference is greater than zero.

[0100] In some embodiments, in step S620, the target temperature of the ice-making component is subtracted from the temperature of the cold air after passing through the first evaporator to obtain a second temperature difference.

[0101] In step S630, based on the ratio of the first temperature difference to the second temperature difference and the ice-making cavity volume of the ice-making component, the target opening of the third cold air inlet is determined, so that the amount of cold air sent into the ice-making component through the third cold air inlet is positively correlated with the ratio of the first temperature difference to the second temperature difference and the ice-making cavity volume of the ice-making component.

[0102] exist Figure 6 In the illustrated embodiment, the first temperature difference reflects the temperature that the water needs to be lowered, and the second temperature difference reflects the difference between the cold air and the target ice-making temperature. Different ice-making cavity volumes require different amounts of cold air. The target opening of the third cold air inlet is determined based on the ratio of the first and second temperature differences and the ice-making cavity volume of the ice-making component, ensuring that the cold air supply closely matches the actual ice-making needs. Specifically, when the initial temperature of the water used for ice making is high, the first temperature difference is large, or the ice-making cavity volume is large, the opening of the third cold air inlet is appropriately increased to increase the amount of cold air supplied to the ice-making component; conversely, the opening of the third cold air inlet is decreased to reduce the amount of cold air supplied to the ice-making component. This avoids excessively long ice-making times due to insufficient cold air or energy waste due to excessive cold air.

[0103] In some embodiments, such as Figure 7 As shown, determining the target opening of the third cold air inlet based on the ratio of the first temperature difference and the second temperature difference, as well as the ice-making cavity volume of the ice-making component, includes at least the following steps S710 to S720, which are detailed below.

[0104] In step S710, based on the ratio of the first temperature difference and the second temperature difference, the ice-making cavity volume of the ice-making component, and the first coefficient, the target amount of cold air sent into the ice-making component through the third cold air inlet is determined.

[0105] Among them, the target cold air volume is positively correlated with the first coefficient, which is determined based on the relationship between the specific heat capacity of water and the specific heat capacity of air and the latent heat of water freezing into ice.

[0106] In step S720, the target opening degree of the third cold air inlet is determined based on the target cold air volume.

[0107] exist Figure 7 In the illustrated embodiment, the target cold air volume is calculated by comprehensively considering the ratio of the first temperature difference to the second temperature difference, the ice-making cavity volume of the ice-making component, and a first coefficient determined based on the specific heat capacity of water, the specific heat capacity of air, and the latent heat of water's freezing, thus closely integrating the physical essence of the ice-making process. The specific heat capacity of water determines the amount of heat absorbed or released required for its temperature change; the specific heat capacity of air affects the ability of cold air to carry heat; and the latent heat of water's freezing is the large amount of heat released when water turns into ice. By incorporating these factors into the calculation, the target cold air volume that meets the ice-making requirements can be accurately determined, avoiding insufficient cold air volume leading to slow ice-making or excessive cold air volume causing energy waste, effectively improving ice-making efficiency. Based on this, the target opening degree of the third cold air inlet is determined according to the calculated target cold air volume, achieving precise control of the cold air supply.

[0108] In some embodiments, the first coefficient is obtained based on the product of the second coefficient and the heat transfer coefficient. The second coefficient is determined based on the relationship between the specific heat capacity of water and the specific heat capacity of air and the latent heat of water freezing into ice. The heat transfer coefficient is a dimensionless proportionality coefficient characterizing the efficiency of heat exchange between the ice-making component and the surrounding air.

[0109] The heat transfer coefficient reflects the efficiency of heat exchange between the ice-making component and the surrounding air in actual operating environments. The first coefficient is determined by combining the second coefficient, based on the relationship between the specific heat capacity of water and air and the latent heat of water freezing into ice, with the heat transfer coefficient. This makes the calculation of the target cold air volume more closely resemble actual ice-making scenarios, improving the accuracy of the calculation.

[0110] In some embodiments, the second coefficient is 4.2.

[0111] In some embodiments, the target opening degree of the third cold air inlet is determined based on the ice-making cavity volume of the ice-making component, the target temperature of the ice-making component, the initial temperature of the water used for ice making, and the temperature of the cold air after passing through the first evaporator. This includes: determining the target cold air volume delivered to the ice-making component through the third cold air inlet based on the relationship: VV = (4×T2-3.5×T1) / (T1-T3)×VS×K1; and determining the target opening degree of the third cold air inlet based on the target cold air volume. Wherein, VV is the target cold air volume, T1 is the target temperature of the ice-making component, T2 is the initial temperature of the water used for ice making, T3 is the temperature of the cold air after passing through the first evaporator, VS is the ice-making cavity volume of the ice-making component, and K1 = 4.2×K2, where K1 is a first coefficient, 4.2 is a second coefficient, and K2 is the heat transfer coefficient.

[0112] The process of obtaining the relation VV = (4×T2-3.5×T1) / (T1-T3)×VS×K1 is explained below.

[0113] There exists a well-known formula: tmixed = (t1 × Q1 + t2 × Q2) / (Q1 + Q2) ①, where tmixed is the temperature after mixing, t1 and t2 are the initial temperatures, and Q1 and Q2 are the heat generated at the initial temperatures. Formula ① can be transformed into T1 = (T2 × QS + T3 × QV) / (QS + QV) ②, where T1 is the target temperature of the ice-making component, T2 is the initial temperature of the water used for ice making (i.e., the temperature of the refrigerator compartment), T3 is the temperature of the cold air after passing through the first evaporator, QS is the initial heat generated by the ice-making component, and QV is the initial heat generated by the cold air after passing through the first evaporator. The initial heat generated by the ice-making component, QS, consists of three parts: the first part is the water temperature dropping to 0°C; the second part is the phase change process of water freezing at 0°C; and the third part is the temperature of the ice dropping from 0°C to the target ice-making temperature. QS = Qwater + (Qwater transforming into Qice) + Qice ③.

[0114] There are well-known formulas: Q = m × c × ▲t ④ and Q = m × L ⑤, where Q is heat, m is mass, c is specific heat capacity, ▲t is temperature difference, and L is the latent heat of water freezing into ice. Substituting formulas ④ and ⑤ into formula ③, we obtain the formula QS = m × C_water × (T2 - 0) + m × L + m × C_ice × (0 - T1) ⑥, where QS is the initial heat of the ice-making component, m is mass, C_water is the specific heat capacity of water, T2 is the initial temperature of the water used for ice making, L is the latent heat of water freezing into ice, C_ice is the specific heat capacity of ice, and T1 is the target temperature of the ice-making component.

[0115] Water has twice the specific heat capacity of ice, i.e., C_water = 2 × C_ice⑦. For ease of calculation, the latent heat L fixed by water freezing into ice is approximately equal to: L = 3 × C_water × (T2 - T1) ⑧, where L is the latent heat of water freezing into ice, C_water is the specific heat capacity of water, T2 is the initial temperature of the water used for ice making, and T1 is the target temperature of the ice-making component.

[0116] After the above simplification, the initial heat QS of the ice-making component satisfies the formula: QS = m × C_water × (4 × T2 - 3.5 × T1) ⑨; while QS_air = K2 × QS ⑩, where K2 is the heat transfer coefficient, and the specific heat capacity of water is 4.2 times that of air. Substituting formula ⑨ into formula ⑩, we can obtain the formula: QS_air = K2 × m × 4.2 × C_air × (4 × T2 - 3.5 × T1) Cair represents the specific heat capacity of air.

[0117] From formula ②, we can derive: QV / QS_air = (T2-T1) / (T1-T3) And there exists a well-known formula: m = ρ × V ρ is density, and V is volume. Applying formula ④... , Substitute into the formula In this equation, we obtain the formula: (Ρv×VV×CV×▲TV) / (Ρs×VS×CS×K2×4.2×(4×T2-3.5×T1))= (T2-T1) / (T1-T3) Wherein, Pv is the density of the cold air generated by the first evaporator, that is, the density of the cold air after passing through the first evaporator, Ps is the initial air density of the ice-making component, VV is the target cold air volume of the ice-making component, VS is the initial air volume of the ice-making component, that is, the ice-making cavity volume of the ice-making component, CV is the specific heat capacity of the cold air generated by the first evaporator, CS is the initial specific heat capacity of the air of the ice-making component, ▲TV is the temperature difference between the temperature of the cold air generated by the first evaporator and the temperature of the ice-making component, and ▲TS is the temperature difference between the temperature of the ice-making component and the temperature of the cold air generated by the first evaporator.

[0118] The air inside the refrigerator is set to incompressible air, i.e., Pv=Ps, CV=CS, ▲TV=-▲TS=(T2-T1), therefore, the formula This can be simplified to VV = (4×T2-3.5×T1) / (T1-T3)×VS×K1 K1 = 4.2 × K2.

[0119] Figure 8 A flowchart illustrating the refrigeration control process of a refrigerator according to another embodiment of this application is shown, as follows: Figure 8 As shown, the refrigeration process includes at least steps S810 to S850, which are described in detail below.

[0120] In step S810, it is determined whether the freezer compartment has a cooling requirement and the ice-making component has an ice-making requirement. If so, step S820 is executed.

[0121] In step S820, it is confirmed whether there is a refrigeration requirement in the refrigerator compartment. If so, proceed to step S830; otherwise, proceed to step S850.

[0122] In step S830, the refrigerant in the refrigeration pipeline is switched to flow through the second evaporator instead of the first evaporator.

[0123] In step S840, it is determined whether the refrigeration of the refrigerator compartment has reached the preset conditions. If so, step S850 is executed.

[0124] The preset conditions can be that the temperature of the refrigerator compartment drops to the preset shutdown temperature.

[0125] In step S850, the refrigerant in the refrigeration pipeline is switched to flow through the first evaporator and not through the second evaporator, and the regulating component is controlled to adjust the opening of the third cold air inlet to the target opening and close the first cold air inlet.

[0126] exist Figure 8 In the embodiment shown, when both the freezer compartment and the ice-making component have cooling needs, it is first determined whether the refrigerator compartment has a cooling need. If the refrigerator compartment has a cooling need, the refrigerant is switched to flow through the second evaporator to ensure that the refrigerator compartment can receive cold air supply in a timely manner. Moreover, the refrigerator compartment can often quickly reach the shutdown temperature, and the cooling effect of the freezer compartment and the ice-making component will not be affected by the cooling of the refrigerator compartment.

[0127] In some embodiments, the controller is further configured to: when there is a cooling demand in the freezer compartment and an ice-making component has an ice-making demand, if the target temperature of the freezer compartment is within a first temperature range, then run a first start-stop procedure; otherwise, run a second start-stop procedure, wherein the first start-stop procedure is used to extend the cooling time of the freezer compartment.

[0128] The first temperature range corresponds to the warmer setting of the freezer compartment, for example, -15℃ to -20℃.

[0129] When the freezer compartment is at a warmer setting, the first start-stop program is run to extend the cooling time of the freezer compartment, which can extend the cooling time of the ice-making components, thus ensuring the ice-making effect of the ice-making components when the freezer compartment is at a warmer setting.

[0130] Figure 9 The ice-making and freezing logic of one embodiment of this application is shown.

[0131] like Figure 9 As shown, in the ice-making and cooling process, it is first determined whether the ice-making component is turned on. If not, the second start-stop procedure is run for the freezer compartment. If it is, it is further determined whether the ice-making component is full of ice. If so, the second start-stop procedure is run for the freezer compartment. Otherwise, it is determined whether the target temperature of the freezer compartment is within the first temperature range. If so, the first start-stop procedure is run for the freezer compartment. Otherwise, the second start-stop procedure is run for the freezer compartment.

[0132] In the refrigeration process, when the freezer compartment needs to be refrigerated, first confirm whether there is a refrigeration demand in the refrigerator compartment. If so, switch the refrigerant in the refrigeration pipeline to flow through the second evaporator instead of the first evaporator. Next, determine whether the refrigerator compartment has reached the preset refrigeration conditions. If so, determine whether the target temperature of the freezer compartment is within the first temperature range. If the target temperature of the freezer compartment is within the first temperature range, run the first start-stop procedure for the freezer compartment. Otherwise, run the second start-stop procedure for the freezer compartment. Then, determine whether the freezer compartment temperature has dropped to the stop temperature. If so, the process ends.

[0133] In some embodiments, under the first start-up and shutdown procedure, the start-up temperature corresponding to the same target temperature of the freezer compartment is the same as that under the second start-up and shutdown procedure, and the shutdown temperature corresponding to the same target temperature of the freezer compartment is lower than the shutdown temperature under the second start-up and shutdown procedure.

[0134] In the first start-up and shutdown procedure, the start-up temperature corresponding to the target temperature is kept unchanged, while the shutdown temperature is lowered, thereby increasing the cooling time of the freezer compartment and thus extending the cooling time of the ice-making component. The control logic is simple.

[0135] In some embodiments, when the freezer compartment has a cooling demand and the ice-making component has an ice-making demand, if the target temperature of the freezer compartment is within the first temperature range, the start-up and stop temperatures corresponding to the second start-up and stop procedure are shown in Table 1 below, and the start-up and stop temperatures corresponding to the first start-up and stop procedure are shown in Table 2 below. The units of the values ​​in Tables 1 and 2 are °C. When the target temperature of the freezer compartment is lower than the first temperature range, the start-up and stop temperatures corresponding to each target temperature are no longer adjusted. This not only ensures that the temperature of the freezer compartment meets the requirements, but also ensures that the existing control logic does not undergo significant changes.

[0136] Table 1

[0137] Table 2

[0138] In some embodiments, when there is a cooling demand in the freezer compartment and no ice-making demand in the ice-making component, the controller is configured to: control the regulator to adjust the opening of the first cold air inlet to the maximum opening and close the first zone.

[0139] When there is no need for ice making in the ice-making unit, the opening of the first cold air inlet is adjusted to the maximum, maximizing the amount of cold air entering the freezer compartment and shortening the cooling time. Conversely, closing the first zone minimizes the amount of cold air entering the ice-making unit, maintaining a lower temperature without wasting energy.

[0140] In some embodiments, when there is a cooling demand in the freezer compartment and an ice-making component, the adjusting element is in different positions in accordance with the freezing setting and ice-making requirements. The controller is also configured to: when there is a cooling demand in the freezer compartment and an ice-making component, if the target temperature of the freezer compartment is within a first temperature range, control the adjusting element to adjust the opening of the third cold air inlet to the maximum opening and close the first cold air inlet.

[0141] When the target temperature of the freezer compartment is within the first temperature range, the first cold air inlet is closed, which can extend the cooling time of the freezer compartment; the third cold air inlet is fully open, which can maximize the airflow of the ice-making components, thereby ensuring the ice-making effect.

[0142] In summary, this application achieves decoupled distribution of ice-making cold air from the freezer compartment by setting a first cold air inlet and a third cold air inlet dedicated to the ice-making component in the freezer compartment, and configuring an adjustment mechanism to dynamically control the opening of the first and third cold air inlets. When the ice-making component is working, the controller accurately calculates the target opening of the third cold air inlet based on the ice-making cavity volume of the ice-making component, the target temperature of the ice-making component, the initial temperature of the water used for ice making, and the temperature of the cold air after passing through the first evaporator. At the same time, it closes the first cold air inlet to appropriately reduce the cold air in the freezer compartment, thereby delivering a cold air volume adapted to the ice-making demand to the ice-making component through the third cold air inlet. This satisfies the cold air demand of the ice-making component while avoiding energy efficiency degradation and temperature fluctuations caused by forcibly lowering the freezer compartment temperature, effectively balancing ice-making efficiency and freezer compartment temperature stability. When the ice-making unit is working and the target temperature of the freezer compartment is within the first temperature range, the control regulator adjusts the opening of the third cold air inlet to the maximum and closes the first cold air inlet. This extends the cooling time of the freezer compartment and maximizes the airflow of the ice-making unit, thereby ensuring the ice-making effect.

[0143] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of this application is limited only by the appended claims.

Claims

1. A refrigerator, characterized in that, include: The cabinet internally defines a freezer compartment, which is provided with a first cold air inlet and at least one second cold air inlet. The first cold air inlet and the second cold air inlet are used to send cold air generated by the first evaporator into the freezer compartment. An ice-making device includes a water tank assembly and an ice-making assembly. The water tank assembly is used to store water for ice making, and the ice-making assembly is used to obtain water for ice making from the water tank assembly and freeze the water for ice. The ice-making assembly is disposed in the freezer chamber. The freezer chamber is provided with a third cold air inlet. The third cold air inlet is connected to the ice-making assembly and is used to send cold air generated by the first evaporator into the ice-making assembly. A first evaporator is disposed outside the freezer compartment and is used to supply cold air to the freezer compartment and the ice-making assembly; An adjusting component is used to adjust the opening degree of the first cold air inlet and the third cold air inlet to control the amount of cold air sent into the freezer through the first cold air inlet and the amount of cold air sent into the ice-making component through the third cold air inlet. The controller, electrically connected to the regulating element, is configured to: When the freezer compartment has a cooling demand and the ice-making component has an ice-making demand, the target opening degree of the third cold air inlet is determined based on the ice-making cavity volume of the ice-making component, the target temperature of the ice-making component, the initial temperature of the water used for ice making, and the temperature of the cold air after passing through the first evaporator. The control mechanism adjusts the opening of the third cold air inlet to the target opening and closes the first cold air inlet; When the opening of the first cold air inlet decreases, the amount of cold air supplied to the ice-making component through the third cold air inlet increases.

2. The refrigerator according to claim 1, characterized in that, Based on the ice-making cavity volume of the ice-making component, the target temperature of the ice-making component, the initial temperature of the water used for ice making, and the temperature of the cold air after passing through the first evaporator, the target opening degree of the third cold air inlet is determined, including: A first temperature difference is obtained based on the target temperature of the ice-making component and the initial temperature of the water used for ice making; A second temperature difference is obtained based on the target temperature of the ice-making component and the temperature of the cold air after passing through the first evaporator. Based on the ratio of the first temperature difference to the second temperature difference and the ice-making cavity volume of the ice-making component, the target opening of the third cold air inlet is determined, so that the amount of cold air sent into the ice-making component through the third cold air inlet is positively correlated with the ratio of the first temperature difference to the second temperature difference and the ice-making cavity volume of the ice-making component.

3. The refrigerator according to claim 2, characterized in that, Based on the target temperature of the ice-making component and the initial temperature of the water used for ice making, a first temperature difference is obtained, including: Multiply the target temperature of the ice-making component by the value 4 to obtain the first product, and multiply the initial temperature of the water used for ice making by the value 3.5 to obtain the second product; The difference between the first product and the second product is calculated to obtain the first temperature difference.

4. The refrigerator according to claim 3, characterized in that, Based on the ratio of the first temperature difference to the second temperature difference and the ice-making cavity volume of the ice-making component, the target opening degree of the third cold air inlet is determined, including: Based on the ratio of the first temperature difference to the second temperature difference, the ice-making cavity volume of the ice-making component, and the first coefficient, the target amount of cold air sent into the ice-making component through the third cold air inlet is determined. Based on the target cold air volume, determine the target opening degree of the third cold air inlet; The target cold air volume is positively correlated with the first coefficient, which is obtained by multiplying the second coefficient and the heat transfer coefficient. The second coefficient is determined based on the relationship between the specific heat capacity of water and the specific heat capacity of air and the latent heat of water freezing into ice. The heat transfer coefficient is a dimensionless proportionality coefficient characterizing the heat exchange efficiency between the ice-making component and the surrounding air.

5. The refrigerator according to any one of claims 1 to 4, characterized in that, The interior of the enclosure defines a cold storage compartment, the water tank assembly is disposed within the cold storage compartment, and the initial temperature of the water used for ice making is the compartment temperature of the cold storage compartment.

6. The refrigerator according to claim 5, characterized in that, It also includes a second evaporator and refrigeration piping, the second evaporator being used to supply cold air to the refrigerator compartment; the controller is configured to: When the freezer compartment has a cooling requirement and the ice-making component has an ice-making requirement, confirm whether the refrigerator compartment has a cooling requirement. When the refrigerator compartment requires cooling, the refrigerant in the refrigeration pipeline is switched to flow through the second evaporator instead of the first evaporator. When the refrigeration of the cold compartment reaches the preset condition, the refrigerant in the refrigeration pipeline is switched to flow through the first evaporator and not through the second evaporator. The regulating component is then controlled to adjust the opening of the third cold air inlet to the target opening and close the first cold air inlet.

7. The refrigerator according to claim 1, characterized in that, The controller is further configured to: when the freezer compartment has a cooling demand and the ice-making component has an ice-making demand, if the target temperature of the freezer compartment is within a first temperature range, run a first start-stop procedure; otherwise, run a second start-stop procedure, wherein the first start-stop procedure is used to extend the cooling time of the freezer compartment.

8. The refrigerator according to claim 7, characterized in that, Under the first start-up and shutdown procedure, the start-up temperature corresponding to the same target temperature of the freezer compartment is the same as that under the second start-up and shutdown procedure, and the shutdown temperature corresponding to the same target temperature of the freezer compartment is lower than the shutdown temperature under the second start-up and shutdown procedure.

9. The refrigerator according to claim 1, characterized in that, It includes a refrigeration duct that connects to the third cold air inlet. The cold air generated by the first evaporator reaches the third cold air inlet after passing through the refrigeration duct. When the regulating member is in the closed state, the regulating member closes the first area of ​​the third cold air inlet. The second area of ​​the third cold air inlet connects the refrigeration duct and the ice-making component.

10. The refrigerator according to claim 9, characterized in that, When the freezer compartment has a cooling demand and the ice-making component does not have an ice-making demand, the controller is configured to: control the regulator to adjust the opening of the first cold air inlet to the maximum opening and close the first area.

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