Refrigerator

Abstract

According to the refrigerator, when a compressor is shut down, the step of determining whether the water evaporation speed of an evaporation dish reaches the first water amount or not is executed, the first water amount is determined on the basis of at least one of the chamber volume, the refrigeration mode, the door opening frequency and the defrosting frequency of a refrigeration chamber, and the generation speed of defrosting water can be reasonably judged; if the water evaporation speed of the evaporation dish is below the first water quantity, it is considered that the water evaporation speed of the evaporation dish is smaller than the generation speed of the defrosting water, so that the condensation fan is kept in an on state, the evaporation capacity of the evaporation dish is improved through operation of the condensation fan, and the defrosting water in the evaporation dish can be gasified in time; the problem that defrosting water overflows out of the evaporating dish when the evaporating dish is filled with the defrosting water can be effectively prevented; if the water evaporation speed of the evaporation dish reaches the first water volume or above, it is considered that the water evaporation speed of the evaporation dish is larger than the defrosting water generation speed, and therefore the condensation fan is shut down, power consumption of the refrigerator can be saved, and the service life of the condensation fan can be guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of refrigeration equipment, and particularly to a refrigerator. Background Art

[0002] When the evaporator of a refrigerator defrosts, defrosting water is generated. To prevent the defrosting water from dripping onto the electrical components in the machine compartment, the refrigerator is usually provided with an evaporation dish to receive the defrosting water flowing down from the evaporator. The evaporation dish is usually arranged in the compressor compartment, and an evaporation pipeline is arranged in the evaporation dish. One end of the evaporation pipeline is connected to the exhaust pipe of the compressor, and the other end is connected to the inlet end of the condenser. The evaporation pipeline is immersed in the water in the evaporation dish, and the defrosting water in the evaporation dish absorbs the heat of the evaporation pipeline, thereby accelerating evaporation. A condenser fan is also arranged in the compressor compartment, and the condenser fan is used to help dissipate heat from heat-generating components such as the condenser and the compressor.

[0003] In the related art, the condenser fan generally works synchronously with the compressor, that is, when the compressor starts, the condenser fan starts to work, and when the compressor stops, the condenser fan also stops. However, the applicant has found that the amount of defrosting water in the refrigerator is affected by multiple factors such as the working mode of the refrigerator, the environmental humidity, and the door opening frequency. If the condenser fan always works synchronously with the compressor, sometimes the evaporation dish will be filled with defrosting water and overflow as the defrosting water increases, resulting in the problem that the defrosting water flows out of the refrigerator.

[0004] Therefore, it is necessary to improve the control strategy of the refrigerator to prevent the defrosting water from overflowing the evaporation dish. Summary of the Invention

[0005] To solve the above technical problems, this application provides a refrigerator.

[0006] In some embodiments of this application, the refrigerator includes a box body, a refrigeration component, an evaporation dish, a condenser fan, and a control device. The box body serves as the support structure of the refrigerator and is internally provided with several refrigeration compartments; the refrigeration component is arranged in the box body and includes a compressor, a condenser, and an evaporator. The compressor and the condenser are arranged in the compressor compartment, and the compressor, the condenser, and the evaporator are connected by pipelines for the refrigerant to flow; the evaporation dish is arranged in the compressor compartment and is used to receive the defrosting water of the evaporator; the condenser fan is arranged in the compressor compartment and is used to blow the heat generated by the condenser out of the compressor compartment.

[0007] Wherein, the control device is electrically connected to the compressor and the condenser fan and is configured to: when starting the compressor, start the condenser fan; when shutting down the compressor, determine whether the water evaporation speed of the evaporation dish reaches more than a first water volume. If so, shut down the condenser fan, otherwise, keep the condenser fan in the on state until a preset shutdown condition is met; wherein, the first water volume is determined based on at least one of the compartment volume of the refrigeration compartment, the refrigeration method, the door opening frequency, and the defrosting frequency.

[0008] Thus, in the above technical solution, when the compressor is shut down, the step of determining whether the water evaporation rate of the evaporating dish reaches more than a first water volume is executed. The first water volume is determined based on at least one of the compartment volume of the refrigerating compartment, the refrigeration mode, the door opening frequency, and the defrosting frequency. The generation rate of defrosting water can be reasonably determined. If the water evaporation rate of the evaporating dish is below the first water volume, it is considered that the evaporation rate of the water in the evaporating dish is less than the generation rate of defrosting water, and the evaporation capacity of the evaporating dish needs to be improved. Therefore, the condensing fan is kept in the on state, and the evaporation capacity of the evaporating dish is improved through the operation of the condensing fan, so that the defrosting water in the evaporating dish can be gasified in time, effectively preventing the problem that the evaporating dish overflows due to the defrosting water filling the evaporating dish. If the water evaporation rate of the evaporating dish reaches more than the first water volume, it is considered that the evaporation rate of the water in the evaporating dish is greater than the generation rate of defrosting water. Therefore, the condensing fan is shut down, which can save the power consumption of the refrigerator and ensure the service life of the condensing fan.

[0009] In some embodiments of the present application, based on the relational expression the first water volume is determined; where G_vol_min represents the first water volume, i represents different refrigerating compartments, n represents the number of refrigerating compartments, K1 represents a constant coefficient, L represents the volume coefficient of the refrigerating compartment, D represents the defrosting frequency coefficient of the refrigerating compartment, F represents the refrigeration mode coefficient of the refrigerating compartment, U represents the door opening frequency coefficient of the refrigerating compartment, and V represents the compartment volume of the refrigerating compartment.

[0010] In the above technical solution, the determination of the first water volume takes into account multiple factors affecting the defrosting water volume, such as the compartment volume of the refrigerating compartment, the refrigeration mode, the door opening frequency, and the defrosting frequency, and the obtained first water volume is more reliable.

[0011] In some embodiments of the present application, the water evaporation rate of the evaporating dish is determined based on the startup rate of the compressor, the compartment volumes of several refrigerating compartments, the refrigeration mode, and the door opening frequency.

[0012] In the above technical solution, the startup rate of the compressor affects the working duration of the condensing fan and the temperature of the defrosting water in the evaporating dish. When calculating the water evaporation rate of the evaporating dish, considering the startup rate of the compressor can make the calculation result more reliable. The door opening frequency of the refrigerating compartment affects the working duration of the compressor, thereby affecting the temperature of the compressor compartment and the defrosting water in the evaporating dish, and further affecting the water evaporation rate. When calculating the water evaporation rate of the evaporating dish, considering the door opening frequency of the refrigerating compartment can make the calculation result more reliable.

[0013] In some embodiments of the present application, based on the relational expression Determine the water evaporation rate of the evaporating dish; where, G evap min represents the water evaporation rate of the evaporating dish, i represents different refrigerating compartments, n represents the number of refrigerating compartments, K2 represents a constant coefficient, K2 < K1, L represents the volume coefficient of the refrigerating compartment, F represents the refrigeration mode coefficient of the refrigerating compartment, U represents the door opening frequency coefficient of the refrigerating compartment, V represents the volume of the refrigerating compartment, and R represents the startup rate of the compressor.

[0014] In the above technical solution, the calculation formula of the water evaporation rate of the evaporating dish corresponds to the calculation formula of the first water volume, so that the comparison result between the water evaporation rate of the evaporating dish and the first water volume can accurately reflect the magnitude relationship between the evaporation capacity of the evaporating dish and the generation rate of defrosting water, which is helpful for the precise control of the condensation fan, saves the power consumption of the refrigerator while preventing the overflow of defrosting water from the evaporating dish, and ensures the service life of the condensation fan.

[0015] In some embodiments of the present application, keep the condensation fan in the on state until a preset shutdown condition is met, including: keeping the condensation fan in the on state and calculating the continuous duration for which the condensation fan remains in the on state after shutting down the compressor; when the continuous duration for which the condensation fan remains in the on state after shutting down the compressor reaches the target duration, shut down the condensation fan.

[0016] In the above technical solution, the continuous duration for which the condensation fan remains in the on state after shutting down the compressor can reflect the time for the condensation fan to increase the water evaporation rate of the evaporating dish. Using whether the continuous duration for which the condensation fan remains in the on state after shutting down the compressor reaches the target duration as the condition for determining whether to shut down the condensation fan is accurate and reliable, and the logic is simple.

[0017] In some embodiments of the present application, if the water evaporation rate of the evaporating dish is below the first water volume, the control device further executes: determining the target duration according to the door opening frequencies of several refrigerating compartments; where the target duration is positively correlated with the door opening frequencies of several refrigerating compartments.

[0018] In the above technical solution, under the condition that other factors are the same, the frosting amount is positively correlated with the door opening frequency of the refrigerating compartment. Setting the target duration to be positively correlated with the door opening frequency of the refrigerating compartment can effectively prevent the overflow of the evaporating dish while saving the power consumption of the refrigerator.

[0019] In some embodiments of the present application, the control device further executes: when the water evaporation rate of the evaporating dish is below the first water volume and the condensation fan is kept in the on state, increasing the rotation speed of the condensation fan.

[0020] In the above technical solution, by increasing the rotation speed of the condensation fan, the evaporation capacity of the defrosting water is increased, and the reliability of the refrigerator is further improved.

[0021] In some embodiments of the present application, several refrigerating compartments include at least one variable-temperature compartment, and the evaporator is configured to refrigerate at least the variable-temperature compartment.

[0022] In the above technical solution, the variable-temperature compartment can be switched to the refrigerating mode or the freezing mode, and the defrosting water volume is different in the refrigerating mode and the freezing mode, which can better adapt to the solution of the present application.

[0023] In some embodiments of the present application, the control device is configured to: before performing the step of determining whether the water evaporation rate of the evaporating dish reaches more than a first water volume, determine the refrigeration mode of the variable-temperature compartment. If the refrigeration mode of the variable-temperature compartment is the refrigerating mode, perform the step of determining whether the water evaporation rate of the evaporating dish reaches more than the first water volume.

[0024] In the above technical solution, it is possible to prevent the defrosting water of the evaporating dish from overflowing in the refrigerator with a variable-temperature compartment, and at the same time reduce unnecessary operation logics.

[0025] In some embodiments of the present application, the refrigerator further includes an air duct, a circulation fan, and a drain pipe. Among them, the air duct communicates with the refrigerating compartment, and the evaporator is arranged in the air duct; the circulation fan is arranged in the air duct and is used to send the cold generated by the evaporator to the refrigerating compartment; one end of the drain pipe communicates with the air duct, and the other end communicates with the evaporating dish. The evaporating dish is arranged at the bottom of the condenser, and the condenser fan is located between the compressor and the condenser.

[0026] In the above technical solution, the drain pipe is arranged to send the defrosting water to the evaporating dish, and the structure is simple; at the same time, the evaporating dish is arranged at the bottom of the condenser, which can receive the condensed water dripping from the condenser.

[0027] It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0029] Figure 1 The schematic structural diagram of the refrigerator after hiding the cabinet door in an embodiment of the present application is shown.

[0030] Figure 2 Shows Figure 1 The schematic back structure diagram of the shown refrigerator.

[0031] Figure 3 Shows Figure 2 The schematic structural diagram of the shown refrigerator after hiding the rear cover of the machine compartment.

[0032] Figure 4 ShowsFigure 1 Schematic diagram of the structure of the evaporator and the circulation fan of the refrigerator shown

[0033] Figure 5 Block diagram showing the partial structural composition of the refrigerator according to an embodiment of the present application

[0034] Figure 6 Shows Figure 1 Schematic diagram of the air flow direction of the refrigerator shown

[0035] Figure 7 Flowchart showing the start-stop control of the condenser fan according to an embodiment of the present application

[0036] Figure 8 Shows Figure 7 Detailed flowchart of step S770 shown

[0037] Figure 9 Flowchart showing the start-stop control of the condenser fan according to another embodiment of the present application

[0038] Explanation of the reference numerals is as follows

[0039] 1. Cabinet; 11. Refrigerating compartment; 111. Air outlet; 112. Air return opening; 12. Shelf; 13. Drawer; 14. Compressor compartment; 141. Rear cover of the compartment; 142. Air inlet; 143. Air outlet; 21. Compressor; 22. Condenser; 23. Evaporator; 24. Dry filter; 25. Liquid receiver; 26. Circulation fan; 31. Evaporation dish; 32. Drain pipe; 41. Condenser fan; 42. Fan bracket; 51. Ambient temperature sensor; 52. Compartment temperature sensor; 60. Control device Detailed implementation manners

[0040] To make the objectives, implementation manners and advantages of the present application clearer, the following will clearly and completely describe the exemplary implementation manners of the present application with reference to the accompanying drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part rather than all of the embodiments of the present application

[0041] It should be noted that the brief description of the terms in the present application is only for facilitating the understanding of the following described implementation manners, rather than intending to limit the implementation manners of the present application. Unless otherwise specified, these terms should be understood according to their ordinary and common meanings

[0042] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclusively include. For example, a product or device including a series of components does not necessarily have to be limited to those clearly listed components, but may include other components not clearly listed or inherent to these products or devices

[0043] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", "front", "rear", "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0044] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installation" and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0045] The flowcharts shown in the drawings are only exemplary descriptions, and do not necessarily include all the contents and operations / steps, nor do they necessarily need to be executed in the described order. For example, some operations / steps can be decomposed, while some operations / steps can be combined or partially combined. Therefore, the actual execution order may be changed according to the actual situation.

[0046] In the related art, there is a problem that the defrost water overflows the evaporation dish in a refrigerator. The reason is that the amount of defrost water in the refrigerator is affected by multiple factors such as the working mode of the refrigerator, the environmental humidity, and the door opening frequency. When the amount of defrost water generated by the evaporator is large, if it cannot be evaporated in time, the evaporation dish will be filled with defrost water and overflow as the defrost water increases.

[0047] In particular, a refrigerator with a variable-temperature compartment. The variable-temperature compartment can be switched to the refrigeration mode or the freezing mode. In the freezing mode, the temperature of the variable-temperature compartment is relatively low (generally around -18°C). When the hot and humid air enters the compartment, it is likely to condense on the inner liner of the compartment, the inner liner of the door, the shelves, the racks, the surface of the air duct cover plate, etc., resulting in a reduction in the amount of frost formed on the evaporator. When the evaporator defrosts, the amount of defrost water will also be reduced. In the refrigeration mode, the temperature of the variable-temperature compartment is relatively high (generally around 5°C). When the hot and humid air enters the compartment, it is less likely to condense on the inner liner of the compartment, the inner liner of the door, the shelves, the racks, the surface of the air duct cover plate, etc., leading to an increase in the amount of frost formed on the evaporator. When the evaporator defrosts, the amount of defrost water will also increase. Moreover, in the freezing mode, the temperature of the compartment is relatively low, and the heat load of the refrigerator body is relatively larger than that in the refrigeration mode. Therefore, the starting rate of the compressor is relatively higher than that in the refrigeration mode. The condensing fan works synchronously with the compressor, and the operating time of the condensing fan is relatively longer. In the refrigeration mode, the temperature of the compartment is relatively high, and the heat load of the refrigerator body is relatively smaller than that in the freezing mode. Therefore, the starting rate of the compressor is relatively lower than that in the freezing mode. The condensing fan works synchronously with the compressor, and the operating time of the condensing fan is relatively shorter. Due to the difference in the amount of defrost water between the refrigeration mode and the freezing mode of the variable-temperature compartment, and the significant difference in the starting rate of the compressor between the refrigeration mode and the freezing mode, in the freezing mode, the defrost water in the evaporation dish is relatively easy to evaporate completely, and the risk of water overflow from the evaporation dish is relatively small. In the refrigeration mode, the defrost water in the evaporation dish is not easy to evaporate completely. Especially when the environmental humidity of the refrigerator is relatively high, such as when the environmental humidity is greater than 85%, or when the user frequently opens the door, it will further increase the amount of frost formed on the evaporator. At this time, when the evaporator defrosts, the defrost water increases rapidly, and the evaporation speed of the evaporation dish is less than the generation speed of the defrost water. As time goes by, the defrost water in the evaporation dish becomes more and more, filling the evaporation dish and overflowing from the evaporation dish, flowing onto the user's floor, resulting in quality complaints from users.

[0048] In view of this, when shutting down the compressor in the present application, it is first determined whether the water evaporation rate of the evaporation dish reaches above a first water volume, and the first water volume is determined based on at least one of the compartment volume of the refrigerating compartment, the refrigeration method, the door opening frequency, and the defrosting frequency, which can reasonably determine the generation rate of defrost water. Among them, if the water evaporation rate of the evaporation dish is below the first water volume, it is considered that the evaporation rate of the evaporation dish is less than the generation rate of defrost water, and it is necessary to improve the evaporation capacity of the evaporation dish. Therefore, the condensation fan is kept in the on state, and through the operation of the condensation fan, the evaporation capacity of the evaporation dish is improved, so that the defrost water in the evaporation dish can be gasified in time, which can effectively prevent the problem that the evaporation dish overflows due to being filled with defrost water, thereby preventing the defrost water from overflowing to the outside of the refrigerator; if the water evaporation rate of the evaporation dish reaches above the first water volume, it is considered that the evaporation rate of the evaporation dish is greater than the generation rate of defrost water, so the condensation fan is shut down, which can save the power consumption of the refrigerator and at the same time ensure the service life of the condensation fan.

[0049] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0050] This embodiment provides a refrigerator, which can be a direct-cooling refrigerator, or the refrigerator can be an air-cooling refrigerator.

[0051] Figure 1 The structural schematic diagram of the refrigerator after hiding the cabinet door in an embodiment of the present application is shown.

[0052] As Figure 1 shown, the refrigerator in the embodiment of the present application includes a cabinet 1. The cabinet 1 serves as the supporting structure of the refrigerator and is internally provided with a containing space (not marked in the figure). Other component structures of the refrigerator, such as a refrigeration component, an evaporation dish, a condensation fan, and a circuit structure, etc., can be provided in the containing space of the cabinet 1. The external shape of the cabinet 1 can be designed according to needs. For example, it can be set in the shape of a hollow cuboid.

[0053] As Figure 1 shown, at least one refrigerating compartment 11 can be defined inside the cabinet. When the number of refrigerating compartments 11 is one, the refrigerating compartment 11 can be any one of a refrigerating compartment, a freezing compartment, or a variable-temperature compartment. When the number of refrigerating compartments 11 is two or more, the multiple refrigerating compartments 11 can include at least one or more of a refrigerating compartment, a freezing compartment, or a variable-temperature compartment.

[0054] The refrigerator may include a shelf 12, and the shelf 12 may be disposed inside the refrigerating compartment 11. For example, the refrigerating compartment is provided with the shelf 12. The shelf 12 can be used to place various items such as beverages or food ingredients. The shelf 12 is connected to the inner liner of the box body. Specifically, the left and right opposite sides of the shelf 12 are respectively connected to the left and right opposite sides of the inner liner of the box body, so that the inner liner of the box body forms a stable support for the shelf 12. The number of the shelves 12 can be one or more.

[0055] The refrigerator may include a drawer 13, and the drawer 13 may be disposed inside the refrigerating compartment 11. For example, the freezing compartment or the refrigerating compartment is provided with the drawer 13. The drawer 13 can be used to place various items such as beverages or food ingredients. The inner liner of the box body forms a drawer position (not marked in the figure), and the drawer 13 can be pulled out from the drawer position to place items in the drawer 13 or take items out of the drawer 13. For a refrigerating compartment 11, the number of the drawers 13 can be one or more.

[0056] A food access opening (not marked in the figure) is provided on the front side of the box body 1, and the food access opening communicates with the internal space of the refrigerating compartment 11. Food can be put into the refrigerating compartment 11 or taken out from the refrigerating compartment 11 through the food access opening.

[0057] A door body (not marked in the figure) is provided on the front side of the box body 1. The door body is movably disposed at the food access opening for opening or closing the food access opening, and further opening or closing the internal space of the refrigerating compartment 11. The number of the door bodies can be one, two or more.

[0058] In some embodiments, the door body and the box body 1 can be connected by a hinge, and the door body can rotate around the axis of the hinge, so as to realize the opening and closing of the door body, and further open or close the food access opening.

[0059] Figure 2 Shows Figure 1 The schematic diagram of the back structure of the refrigerator shown Figure 3 Shows Figure 2 The schematic diagram of the structure of the refrigerator shown after hiding the rear cover of the machine compartment Figure 4 Shows Figure 1 The schematic diagram of the structure of the evaporator and the circulation fan of the refrigerator shown Figure 5 Shows the partial structure composition block diagram of the refrigerator according to an embodiment of the present application Figure 6 Shows Figure 1 The schematic diagram of the air flow direction of the refrigerator shown

[0060] The refrigerator according to the embodiment of the present application further includes a refrigeration component. As Figures 2 to 5As shown, the refrigeration assembly may include a compressor 21, a condenser 22, a throttling device (not shown in the figure), and an evaporator 23. The compressor 21, the condenser 22, the throttling device, and the evaporator 23 are sequentially connected in series through pipelines, and a refrigerant flows through the pipelines.

[0061] When the compressor 21 operates, a low-temperature and low-pressure refrigerant is sucked into the compressor 21, compressed into a high-temperature and high-pressure superheated gas in the cylinder of the compressor 21, and then discharged into the condenser 22. The high-temperature and high-pressure refrigerant gas dissipates heat through the condenser 22, and its temperature continuously drops, gradually being cooled into a normal-temperature and high-pressure saturated vapor, and further cooled into a saturated liquid. The pressure of the refrigerant remains almost unchanged during the entire condensation process. The throttling device may be a capillary tube. The condensed refrigerant saturated liquid undergoes throttling and pressure reduction through the capillary tube, and the refrigerant becomes a normal-temperature and low-pressure wet vapor. Then, the normal-temperature and low-pressure wet vapor absorbs heat and vaporizes through the evaporator 23, not only reducing the temperature of the evaporator 23 and its surroundings, but also turning the refrigerant into a low-temperature and low-pressure gas. The evaporator 23 provides cooling capacity to the refrigerating compartment 11 to lower the temperature of the air in the refrigerating compartment 11. The refrigerant coming out of the evaporator 23 returns to the compressor 21 again, repeating the above process, so that the evaporator 23 can continuously provide cooling capacity to the refrigerating compartment 11, and thus the refrigerating compartment 11 can be maintained at a set temperature.

[0062] The compressor 21 and the condenser 22 may be arranged at the bottom of the rear side of the cabinet 1, and the evaporator 23 may be arranged at the position corresponding to the refrigerating compartment 11 on the rear side of the cabinet 1. In some embodiments, as Figure 2 and Figure 3 shown, a compressor compartment 14 may be defined inside the cabinet 1. The compressor compartment 14 is arranged at the bottom of the rear side of the cabinet 1, and the compressor 21 and the condenser 22 are arranged in the compressor compartment 14. A ventilation opening may be formed on the rear cover 141 of the machine compartment of the compressor compartment 14. As Figure 2 shown, the ventilation opening includes an air inlet 142 and an air outlet 143. Air enters the compressor compartment 14 through the air inlet 142 and is then discharged through the air outlet 143 to utilize the cold air from the outside to take away the heat in the compressor compartment 14 and help heat-generating components such as the compressor 21 and the condenser 22 dissipate heat.

[0063] With the compressor 21 arranged at the rear, the following described condensation fan can be used to form a convective heat exchange air cavity; at the same time, the noise transmitted outward by the compressor 21 can be reduced. Of course, the compressor 21 can also be arranged at other positions according to the industrial design of the refrigerator, which will not be listed one by one here. The condenser 22 and the evaporator 23 can also be arranged at other positions according to the industrial design of the refrigerator.

[0064] As Figure 3As shown, the refrigeration assembly may further include a dryer filter 24, which is generally installed before the capillary tube and is used to filter impurities in the refrigerant in the refrigerant circulation pipeline and absorb moisture in the refrigeration assembly, etc., so as to improve the heat exchange efficiency of the refrigeration assembly and reduce the risk of blockage of the refrigerant circulation pipeline at the same time.

[0065] As Figure 4 shown, the refrigeration assembly may further include a liquid receiver 25, which is arranged on the refrigerant circulation pipeline and is used to store the refrigerant to balance the buffer of the refrigerant in the refrigeration assembly under different environmental conditions.

[0066] In some embodiments, as Figure 4 shown, the refrigeration assembly further includes an air duct (not marked in the figure) and a circulation fan 26. As Figure 1 shown, the refrigeration compartment 11 is provided with an air outlet 111 and an air return opening 112, and both the air outlet 111 and the air return opening 112 are communicated with the air duct, so that the air duct and the refrigeration compartment 11 form a circulation flow path. The evaporator 23 and the circulation fan 26 are both arranged in the air duct, and the circulation fan 26 provides power, so that the air flow inside the refrigeration compartment 11 enters the inside of the air duct through the air return opening 112. When the air flow passes through the evaporator 23, it exchanges heat with the evaporator 23 to reduce the temperature of the air flow. The air flow with reduced temperature is introduced into the inside of the refrigeration compartment 11 through the air outlet 111, thereby reducing the temperature of the air inside the refrigeration compartment 11.

[0067] Exemplarily, the air outlet 111 is arranged on the rear wall of the inner liner of the box. The rear wall of the inner liner of the box refers to the side wall of the inner liner of the box facing the food taking and placing opening. The air return opening 112 is arranged on the side wall of the inner liner of the box, and the flow direction of the cold air in the refrigeration compartment 11 is as Figure 6 shown.

[0068] Of course, the air outlet 111 and the air return opening 112 can also be arranged at other positions on the inner liner of the box. For example, when the air outlet 11 is arranged on the top wall of the inner liner of the box, the cold air enters the inside of the refrigeration compartment 11 from the top of the inner liner of the box, and the air return opening 112 is arranged on the side wall of the inner liner of the box. The specific positions of the air outlet 111 and the air return opening 112 can be flexibly adjusted and set according to actual needs, and are not limited herein.

[0069] The number of the air outlets 111 can be one or more. When there are multiple air outlets 111, the cold air enters the inside of the refrigeration compartment 11 from each air outlet 111, which is beneficial to improving the uniformity of the cold air inside the refrigeration compartment 11. Similarly, the number of the air return openings 112 can be one or more, and is not limited herein.

[0070] The refrigerator according to the embodiment of the present application further includes an evaporation dish 31, which is arranged in the compressor compartment 12 and is used to receive the defrosting water of the evaporator 23.

[0071] In some embodiments, the evaporation dish 31 is provided with an evaporation line (not shown), one end of which is connected to the exhaust pipe of the compressor 21, and the other end is connected to the condenser 22. The heat in the evaporation line can be used to vaporize the liquid water in the evaporation dish 31 into gaseous evaporated gas.

[0072] In some embodiments, the evaporation dish 31 may be located at the bottom of the condenser 22. In other embodiments, the evaporation dish 31 may be located at a side of the condenser 22.

[0073] A drain pipe 32 is also fixed within the cabinet 1. Its upper end is connected to the air duct, and its lower end is located above the evaporating dish 31. The drain pipe 32 directs defrost water from the evaporator 23 into the evaporating dish 31. The upper end of the drain pipe 32 can be sealed to the air duct. In some embodiments, the upper end of the drain pipe 32 is sealed to the bottom of the air duct corresponding to the refrigeration compartment. In other embodiments, the upper end of the drain pipe 32 is sealed to the bottom of the air duct corresponding to the freezer compartment.

[0074] like Figure 3 As shown, the refrigerator of the embodiment of the present application further includes a condensing fan 41, which is arranged in the compressor compartment 12. The condensing fan 41 can blow the heat generated by the compressor 21 and the condenser 22 out of the compressor compartment 14; at the same time, the evaporation rate of the evaporating dish 31 can be increased.

[0075] The condensing fan 41 may be a fan with adjustable speed or a fan with fixed speed.

[0076] exist Figure 3 In the illustrated embodiment, the condensing fan 41 is installed in the press chamber 12 via a fan bracket 42 .

[0077] like Figure 1 As shown, the refrigerator of the embodiment of the present application further includes an ambient temperature sensor 51, which is used to sense the ambient temperature of the refrigerator so that the control device of the refrigerator can control the operation of related components, such as the condensing fan 41, etc. according to the ambient temperature.

[0078] The ambient temperature sensor 51 may be arranged on the top wall of the housing 1 or at other locations of the refrigerator.

[0079] The refrigerator of the embodiment of the present application further includes a compartment temperature sensor 52, and the compartment temperature sensor 52 is arranged in the refrigeration compartment 11, for sensing the compartment temperature of the refrigeration compartment 11, so that the control device of the refrigerator can control the start and stop of the compressor 21 according to the compartment temperature.

[0080] The refrigerator according to an embodiment of the present application may further include a control device 60. The control device 60 may be electrically connected to the compressor 21, and it can send a control signal to the compressor 21 to control the startup or shutdown of the compressor 21, so as to maintain the temperature in the refrigerating compartment 11 at the target temperature by starting and stopping the compressor 21. The control device 60 may be electrically connected to the condenser fan 41, and it is used to control the startup and shutdown of the condenser fan 41, and can make the condenser fan 41 start when it is necessary to accelerate the heat dissipation of the compressor compartment 14 and when it is necessary to accelerate the evaporation rate of the water in the evaporating dish 31, and shut down at other times. The control device 60 may be electrically connected to the compartment temperature sensor 52, and it can receive the temperature signal input by the compartment temperature sensor 52 and control the startup and shutdown of the compressor 21 according to the temperature signal input by the compartment temperature sensor 52. The control device 60 may also be electrically connected to other structures of the refrigerator. For example, it is electrically connected to the circulation fan 26 to bring the cold generated by the evaporator 23 into each refrigerating compartment 11 by controlling the startup and operation of the circulation fan 26; for another example, it is electrically connected to the ambient temperature sensor 51, and it can receive the temperature signal input by the ambient temperature sensor 51 and control the corresponding components according to the temperature signal input by the ambient temperature sensor 51.

[0081] Figure 7 Fig. shows the start-stop control flow chart of the condenser fan according to an embodiment of the present application.

[0082] The control device 60 is configured to control the start and stop of the condenser fan. As Figure 7 shown, controlling the start and stop of the condenser fan at least includes steps S710 to S770, which are introduced in detail as follows:

[0083] In step S710, obtain the compartment temperature information collected by the compartment temperature sensor. Then, enter step S720.

[0084] In step S720, determine whether the compartment temperature collected by the compartment temperature sensor reaches the startup temperature. If so, enter step S730; otherwise, the compressor remains in the shutdown state.

[0085] Among them, the startup temperature refers to the temperature at which the compressor starts to work. The startup temperature can be obtained by adding a fixed value to the target temperature of the refrigerating compartment. This fixed value is, for example, 2°C.

[0086] When there are multiple compartment temperature sensors, in step S720, it can be that the compartment temperature collected by any one of the compartment temperature sensors reaches the startup temperature, then it is considered that refrigeration needs to be started and step S730 is entered; it can also be that the compartment temperatures collected by more than half of the compartment temperature sensors reach the startup temperature, then it is considered that refrigeration needs to be started and step S730 is entered; it can also be that the average value of the compartment temperatures collected by all the compartment temperature sensors reaches the startup temperature, and it is considered that refrigeration needs to be started and step S730 is entered. There are not all listed here.

[0087] In step S730, the compressor and the condenser fan are started. Then, step S740 is entered.

[0088] After the compressor is started, the evaporator generates cold quantity, which is sent to the refrigerated compartment through the circulation fan, so that the temperature of the refrigerated compartment drops until the shutdown temperature is reached.

[0089] In step S740, it is judged whether the compartment temperature collected by the compartment temperature sensor reaches the shutdown temperature. If so, step S750 is entered; otherwise, the compressor and the condenser fan remain in the on state to make the temperature of the refrigerated compartment continue to drop.

[0090] Among them, the shutdown temperature refers to the temperature at which the compressor stops working. The shutdown temperature can be obtained by subtracting a fixed value from the target temperature of the refrigerated compartment. This fixed value is, for example, 2°C.

[0091] In step S750, the compressor is shut down, and it is determined whether the water evaporation rate of the evaporating dish reaches more than the first water volume. If so, step S760 is entered; otherwise, step S770 is entered.

[0092] Among them, the first water volume is related to several factors affecting the defrosting water volume. The factors affecting the defrosting water volume are, for example, the compartment volume of the refrigerated compartment, the refrigeration method, the door opening frequency, the defrosting frequency, etc. The first water volume can be positively correlated with the compartment volume of the refrigerated compartment and the door opening frequency.

[0093] The first water volume is determined based on at least one of the compartment volume, refrigeration method, door opening frequency, and defrosting frequency of each refrigerated compartment.

[0094] For example, the first water volume may be determined based on the compartment volume of the refrigeration compartment. The first water volume may be determined based on the door opening frequency of the refrigeration compartment. The first water volume may be determined based on the compartment volume and door opening frequency of the refrigeration compartment. The first water volume may be determined based on the refrigeration mode of the refrigeration compartment. The first water volume may be determined based on the compartment volume and refrigeration mode of the refrigeration compartment. The first water volume may be determined based on the door opening frequency and refrigeration mode of the refrigeration compartment. The first water volume may be determined based on the compartment volume, door opening frequency, and refrigeration mode of the refrigeration compartment. The first water volume may be determined based on the defrost frequency of the refrigeration compartment. The first water volume may be determined based on the compartment volume and defrost frequency of the refrigeration compartment. The first water volume may be determined based on the door opening frequency and defrost frequency of the refrigeration compartment. The first water volume may be determined based on the refrigeration mode and defrost frequency of the refrigeration compartment. These are not listed here one by one.

[0095] In some embodiments, the first water volume is determined based on multiple factors such as the compartment volume of each refrigeration compartment, the refrigeration mode, the door opening frequency, and the defrosting frequency.

[0096] In detail, based on the relation Determine the first water volume. Where Gmin represents the first water volume, i represents different refrigeration compartments, n represents the number of refrigeration compartments, K1 represents the constant coefficient, L represents the volume coefficient of the refrigeration compartment, D represents the defrost frequency coefficient of the refrigeration compartment, F represents the refrigeration mode coefficient of the refrigeration compartment, U represents the door opening frequency coefficient of the refrigeration compartment, and V represents the compartment volume of the refrigeration compartment.

[0097] Different types of refrigeration compartments have different volume coefficients, which are related to the amount of frost in the compartment type. The compartment type can include the type of refrigeration method and the refrigeration mode. Considering the volume coefficient makes the calculation result of the first water volume more reliable.

[0098] The defrost frequency coefficient is related to the refrigerator's defrost frequency within a preset time period, for example, the refrigerator's defrost frequency within the past month. The higher the defrost frequency, the shorter the defrost interval, and the smaller the defrost frequency coefficient. Taking the refrigerator's defrost frequency into account makes the calculation result of the first water amount more reliable.

[0099] The cooling method may include a cooling method type and a cooling mode. The cooling method type may be, for example, direct cooling or air cooling, and the cooling mode may be, for example, a refrigeration mode or a freezing mode. Different cooling method types and cooling modes have different frost amounts and corresponding cooling method coefficients. Considering the cooling method coefficient makes the calculation result of the first water amount more reliable.

[0100] Different door-opening frequencies allow different amounts of warm, humid air to enter the refrigerator, leading to different amounts of frost. The higher the door-opening frequency, the greater the frost and the larger the door-opening frequency coefficient. Conversely, the lower the door-opening frequency, the smaller the frost and the smaller the door-opening frequency coefficient. Considering the door-opening frequency coefficient makes the calculation of the first water volume more reliable.

[0101] Based on the relation The first water volume is determined by taking into account multiple factors affecting the defrost water volume, such as the volume of the refrigeration compartment, the refrigeration mode, the door opening frequency and the defrost frequency, so that the obtained first water volume is more reliable.

[0102] In one embodiment, the value of K1 is 0.0027, and the calculated first water volume is more reliable.

[0103] Taking a 6-day high-temperature defrosting test (ambient temperature 32°C, humidity 85%), with the refrigeration compartment door opened 64 times / day and the freezer compartment door opened 32 times / day as an example, the calculation coefficient of the first water volume is shown in Table 1 below:

[0104] Table 1

[0105]

[0106] It can be understood that the volume of the evaporating dish should be greater than or at least equal to the first water volume Gvolmin.

[0107] Corresponding to the determination of the first water volume, the evaporation rate of the water in the evaporating dish takes into account the compartment volume and the refrigeration mode of each refrigeration compartment.

[0108] In some embodiments, the evaporation rate of the water in the evaporating dish is determined based on the operating rate of the compressor, the compartment volume of each refrigeration compartment, the refrigeration mode, and the door opening frequency.

[0109] The compressor's operating rate affects the condenser fan's operating hours and the defrost water temperature in the evaporating dish. Considering the compressor's operating rate when calculating the evaporation rate of water in the evaporating dish can make the calculation more reliable.

[0110] The frequency of opening the refrigeration compartment door affects the compressor's operating hours. If the door is closed, the cooling capacity of the refrigeration compartment is not easily lost, the compressor runs at a low speed, and the temperature of the defrost water in the compressor compartment and evaporator is low. If the door is opened frequently, the cooling capacity of the refrigeration compartment is lost, the compressor speed is increased, and the temperature of the defrost water in the compressor compartment and evaporator increases, which can accelerate the evaporation of the defrost water. The high-speed operation of the compressor also increases the operating time of the condensing fan, which can further accelerate the evaporation of the defrost water. When calculating the evaporator water evaporation rate, considering the frequency of opening the refrigeration compartment door can make the calculation more reliable.

[0111] In some embodiments, based on the relationship Determine the water evaporation rate of the evaporating dish; where, G evap min represents the water evaporation rate of the evaporating dish, i represents different refrigeration compartments, n represents the number of refrigeration compartments, K2 represents a constant coefficient, K2 < K1, L represents the volume coefficient of the refrigeration compartment, F represents the refrigeration method coefficient of the refrigeration compartment, U represents the door opening frequency coefficient of the refrigeration compartment, V represents the volume of the refrigeration compartment, and R represents the startup rate of the compressor.

[0112] Among them, different types of refrigeration compartments have different volume coefficients. The compartment type can include the refrigeration method type and the refrigeration mode. Considering the volume coefficient, the calculation result of the water evaporation rate of the evaporating dish is more reliable.

[0113] The refrigeration method can include the refrigeration method type and the refrigeration mode. The refrigeration method type is, for example, direct cooling or air cooling, and the refrigeration mode is, for example, the refrigeration mode or the freezing mode. For different refrigeration method types and refrigeration modes, the corresponding refrigeration method coefficients are different. Considering the refrigeration method coefficient, the calculation result of the water evaporation rate of the evaporating dish is more reliable.

[0114] The higher the door opening frequency, the greater the door opening frequency coefficient; conversely, the lower the door opening frequency, the smaller the door opening frequency coefficient. Considering the door opening frequency coefficient, the calculation result of the water evaporation rate of the evaporating dish is more reliable.

[0115] In one embodiment, K2 is taken as 0.0038, and the calculated water evaporation rate of the evaporating dish is more reliable.

[0116] In step S760, turn off the condenser fan.

[0117] In step S770, keep the condenser fan in the on state until the preset shutdown condition is met.

[0118] Figure 8 Shows Figure 7 The detailed flowchart of step S770 shown, as Figure 8 shown, includes at least the following steps S810 to step S830, which are introduced in detail as follows:

[0119] In step S810, keep the condenser fan in the on state and calculate the duration for which the condenser fan remains in the on state after shutting down the compressor. Then, proceed to step S820.

[0120] In step S820, determine whether the duration for which the condenser fan remains in the on state after shutting down the compressor reaches the target duration. If so, proceed to step S830; otherwise, continue to keep the condenser fan in the on state.

[0121] In step S830, turn off the condenser fan.

[0122] The duration for which the condensing fan remains on after the compressor is shut down can reflect the time for the condensing fan to enhance the water evaporation rate of the evaporating dish. Using whether the duration for which the condensing fan remains on after the compressor is shut down reaches the target duration as the condition for determining whether to shut down the condensing fan is accurate and reliable, and the logic is simple.

[0123] Of course, in other embodiments, other conditions can also be used as the condition for determining whether to shut down the condensing fan.

[0124] Among them, the target duration is determined based on the actual operating conditions of the refrigerator. In some embodiments, if it is determined in the foregoing step S750 that the water evaporation rate of the evaporating dish is below the first water volume, the control device further executes: determining the target duration according to the opening frequency of each refrigerating compartment.

[0125] Among them, the target duration is positively correlated with the opening frequency of each refrigerating compartment. That is, the higher the opening frequency of the refrigerating compartment, the greater the target duration; conversely, the lower the opening frequency of the refrigerating compartment, the smaller the target duration.

[0126] Exemplarily, when the opening frequency of the refrigerating compartment is 20 times per day and G_evap_min < G_capacity_min, the target duration is set to 5 minutes. That is, when the compressor stops, the condensing fan continues to operate for 5 minutes to increase G_evap_min so that G_evap_min ≥ G_capacity_min. When the opening frequency of the refrigerating compartment increases to 30 times per day, the target duration is set to 10 minutes. That is, when the compressor stops, the condensing fan continues to operate for 10 minutes to increase G_evap_min so that G_evap_min ≥ G_capacity_min.

[0127] Exemplarily, the mapping relationship between the target duration and the opening frequency of the refrigerating compartment is shown in Table 2 below:

[0128] Table 2

[0129]

[0130] For a refrigerator with a variable-temperature compartment, assuming that the start-up rate R of the compressor in the freezing mode is 80%, from the above calculation formulas of G evap min and G cap min, it can be known that G evap min ≥ G cap min. That is, the evaporation capacity of the evaporation dish is greater than the defrost water volume after the frost formed by the evaporator is heated. Therefore, in the freezing mode, the defrost water in the evaporation dish is relatively easy to evaporate completely, and the risk of water overflow in the evaporation dish is small. Assuming that the start-up rate R of the compressor in the refrigerating mode is 20%, from the above calculation formulas of G evap min and G cap min, it can be seen that G evap min ≤ G cap min. That is, the evaporation capacity of the evaporation dish is smaller than the defrost water volume after the frost formed by the evaporator is heated. Therefore, in the refrigerating mode, the defrost water in the evaporation dish is relatively difficult to evaporate completely, and the risk of water overflow in the evaporation dish is large. Especially when the user frequently opens the door, the frosting amount of the evaporator will be further increased. When the evaporator defrosts, the defrost water will also increase rapidly. This will cause the defrost water in the evaporation dish to increase more and more over time, filling the evaporation dish and overflowing from the evaporation dish.

[0131] In order to prevent the defrost water in the evaporation dish of a refrigerator with a variable-temperature compartment from overflowing and reduce unnecessary operation logic, in some embodiments, before performing the step of determining whether the water evaporation rate of the evaporation dish reaches above a first water volume, first determine the refrigeration mode of the variable-temperature compartment. If the refrigeration mode of the variable-temperature compartment is the refrigerating mode, perform the step of determining whether the water evaporation rate of the evaporation dish reaches above the first water volume. Otherwise, turn off the condenser fan.

[0132] Figure 9 The start-stop control flowchart of the condenser fan in another embodiment of the present application is shown. As Figure 9 shown, controlling the start and stop of the condenser fan at least includes steps S910 to S990, which are introduced in detail as follows:

[0133] In step S910, obtain the compartment temperature information collected by the compartment temperature sensor. Then, enter step S920.

[0134] In step S920, determine whether the compartment temperature collected by the compartment temperature sensor reaches the start-up temperature. If so, enter step S930. Otherwise, the compressor remains in the stopped state.

[0135] In step S930, start the compressor and the condenser fan. Then, enter step S940.

[0136] In step S940, determine whether the compartment temperature collected by the compartment temperature sensor reaches the stop temperature. If so, enter step S950. Otherwise, the compressor and the condenser fan remain in the on state to continuously lower the temperature of the refrigerating compartment.

[0137] In step S950, the compressor is shut down, and it is determined whether the refrigeration mode of the variable temperature compartment is the refrigeration mode. If so, step S960 is entered; otherwise, step S990 is entered.

[0138] In step S960, it is determined whether the water evaporation rate of the evaporating dish reaches above the first water volume. If so, step S990 is entered; otherwise, step S970 is entered.

[0139] In step S970, the condenser fan is kept in the on state, and the duration for which the condenser fan remains in the on state after the compressor is shut down is calculated. Then, step S980 is entered.

[0140] In step S980, it is judged whether the duration for which the condenser fan remains in the on state after the compressor is shut down reaches the target duration. If so, step S990 is entered; otherwise, the condenser fan remains in the on state.

[0141] In step S990, the condenser fan is shut down.

[0142] It can be understood that when the variable temperature compartment is in the freezing mode, it is not limited to shutting down the condenser fan when the compressor is shut down. In some embodiments, when the variable temperature compartment is in the freezing mode, it is also possible to determine whether to shut down the condenser fan when the compressor is shut down according to the startup rate of the compressor. Exemplarily, when the startup rate of the compressor is small, when the compressor is shut down, the step of determining whether the refrigeration mode of the variable temperature compartment is the refrigeration mode is not executed, but it is directly determined whether the water evaporation rate of the evaporating dish reaches above the first water volume. If the water evaporation rate of the evaporating dish is below the first water volume, the condenser fan is kept in the on state.

[0143] In some embodiments, for a refrigerator with a variable temperature compartment, when the variable temperature compartment is in the refrigeration mode and the compressor is in the startup state, the circulating air volume of the circulating fan is increased.

[0144] In some embodiments, the control device also executes: when the water evaporation rate of the evaporating dish is below the first water volume and the condenser fan is kept in the on state, the rotation speed of the condenser fan is increased.

[0145] By increasing the rotation speed of the condenser fan, the evaporation capacity of the defrost water is increased, and the reliability of the refrigerator is further improved.

[0146] It should be noted that the present application is not only applicable to a refrigerator with a single - system independent evaporator and condenser fan, but also applicable to a refrigerator with multiple systems and multiple evaporators.

[0147] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the scope of the present application is only limited by the appended claims.

Claims

1. A refrigerator, characterized in that: The refrigerator comprises: The cabinet, as the supporting structure of the refrigerator, has a compressor compartment and several refrigeration compartments inside; A refrigeration assembly is provided in the box body, comprising a compressor, a condenser and an evaporator, wherein the compressor and the condenser are provided in the compressor compartment, and the compressor, the condenser and the evaporator are connected by a pipeline for the flow of refrigerant; An evaporating dish, provided in the compressor chamber, for receiving defrost water from the evaporator; a condensing fan, disposed in the compressor compartment, for blowing the heat generated by the condenser out of the compressor compartment; A control device is electrically connected to the compressor and the condensing fan and is configured to: When the compressor is started, the condensing fan is started; When shutting down the compressor, determining whether the evaporation rate of water in the evaporating dish reaches or exceeds a first water volume, and if so, shutting down the condensing fan; otherwise, keeping the condensing fan on until a preset shut-down condition is met; The first water volume is determined based on at least one of the compartment volumes, refrigeration modes, door opening frequencies, and defrosting frequencies of the plurality of refrigeration compartments.

2. The refrigerator according to claim 1, wherein, Based on the relation determining the first water volume; Among them, G volume min represents the first water volume, i represents different refrigeration compartments, n represents the number of refrigeration compartments, K1 represents a constant coefficient, L represents the volume coefficient of the refrigeration compartment, D represents the defrost frequency coefficient of the refrigeration compartment, F represents the refrigeration mode coefficient of the refrigeration compartment, U represents the door opening frequency coefficient of the refrigeration compartment, and V represents the compartment volume of the refrigeration compartment.

3. The refrigerator according to claim 2, characterized in that: The water evaporation rate of the evaporating dish is determined based on the start-up rate of the compressor, the compartment volumes of the plurality of refrigeration compartments, the refrigeration mode, and the door opening frequency.

4. The refrigerator according to claim 3, characterized in that, Based on the relational expression Determine the water evaporation rate of the evaporating dish; Among them, G steam min represents the evaporation rate of the water in the evaporating dish, i represents different refrigeration compartments, n represents the number of refrigeration compartments, K2 represents the constant coefficient, K2 <K1,L代表所述制冷间室的容积系数,F代表所述制冷间室的制冷方式系数,U代表所述制冷间室的开门频率系数,V代表所述制冷间室的间室容积,R代表所述压缩机的开机率。 5. The refrigerator according to any one of claims 1 to 4, characterized in that: The step of keeping the condensing fan in the on state until a preset shut-down condition is met includes: Keeping the condensing fan in an on state, and calculating the duration for which the condensing fan remains in the on state after shutting down the compressor; When the duration for which the condensing fan remains in the on state after the compressor is turned off reaches a target duration, the condensing fan is turned off.

6. The refrigerator according to claim 5, characterized in that If the evaporation rate of water in the evaporating dish is lower than the first water volume, the control device further performs: Determining the target duration according to the door opening frequencies of the plurality of refrigeration compartments; The target duration is positively correlated with the door opening frequencies of the plurality of refrigeration compartments.

7. The refrigerator according to claim 5, characterized in that The control device also performs: When the evaporation rate of water in the evaporating dish is lower than the first water volume and the condensing fan is kept in an on state, the rotation speed of the condensing fan is increased.

8. The refrigerator according to claim 5, characterized in that The plurality of refrigeration compartments include at least one temperature-changing compartment, and the evaporator is configured to cool at least the temperature-changing compartment.

9. The refrigerator according to claim 8, characterized in that The control device is configured to: before executing the step of determining whether the evaporation rate of water in the evaporation dish reaches or exceeds a first water volume, determine a cooling mode of the temperature-changing compartment; if the cooling mode of the temperature-changing compartment is a refrigeration mode, execute the step of determining whether the evaporation rate of water in the evaporation dish reaches or exceeds the first water volume.

10. The refrigerator according to claim 5, characterized in that, The refrigerator further comprises: an air duct connected to the refrigeration compartment, wherein the evaporator is arranged in the air duct; a circulating fan, arranged in the air duct, for delivering the cooling energy generated by the evaporator to the refrigeration compartment; A drain pipe, one end of which is connected to the air duct, and the other end of which is connected to the evaporation dish, wherein the evaporation dish is arranged at the bottom of the condenser, and the condensing fan is located between the compressor and the condenser.

Images