Refrigeration appliance

Abstract

The invention provides a refrigeration appliance. The refrigeration appliance comprises an ice-making chamber and an ice-making evaporator chamber which is in cold air communication with the ice-making chamber, the freezing evaporator chamber is in cold air communication with the freezing chamber; the refrigerating system comprises a compressor, an ice-making evaporator mounted in the ice-making evaporator chamber and a freezing evaporator mounted in the freezing evaporator chamber; part of a refrigerant from the compressor flows through the ice-making evaporator, then flows into the freezing evaporator and passes through the freezing evaporator, and part of the refrigerant directly flows through the freezing evaporator; the refrigeration appliance further comprises an ice-making temperature sensor used for detecting the temperature in the ice-making chamber; the freezing temperature sensor is used for detecting the temperature in the freezing chamber; and the control module is configured to control to reduce the rotating speed of the compressor when the difference value between the temperature of the ice making chamber and the temperature of the freezing chamber is greater than a preset temperature difference.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration, and in particular to a refrigeration appliance. Background Art

[0002] To meet diverse user needs, refrigerators and other refrigeration appliances often incorporate a separate ice-making chamber in addition to the existing refrigerator and freezer compartments, with an ice maker installed within the chamber. The ice-making chamber utilizes a separate ice-making evaporator for cooling, while the freezer compartment utilizes a freezer evaporator, sharing a common compressor. However, controlling this type of refrigeration system can be challenging, making it difficult to ensure that the temperatures in both the ice-making and freezer compartments meet specific cooling requirements. Summary of the Invention

[0003] The object of the present invention is to provide a refrigeration appliance for solving the above-mentioned problems.

[0004] To achieve one of the above-mentioned objects, the present invention provides a refrigeration appliance, comprising:

[0005] an ice-making chamber and an ice-making evaporator chamber in cold air communication with the ice-making chamber;

[0006] a freezing chamber and a freezing evaporator chamber in cold air communication with the freezing chamber;

[0007] A refrigeration system comprising a compressor, an ice-making evaporator installed in the ice-making evaporator chamber, and a freezing evaporator installed in the freezing evaporator chamber;

[0008] Part of the refrigerant from the compressor flows through the ice-making evaporator and then flows into the freezing evaporator through the freezing evaporator, and part of the refrigerant flows directly through the freezing evaporator;

[0009] The refrigeration appliance further comprises:

[0010] An ice-making temperature sensor, used for detecting the temperature in the ice-making chamber;

[0011] A freezing temperature sensor, used to detect the temperature inside the freezing chamber;

[0012] The control module is configured to control the rotation speed of the compressor to decrease when the difference between the temperature of the ice-making chamber and the temperature of the freezing chamber is greater than a preset temperature difference.

[0013] According to a further improvement of an embodiment of the present invention, the control module is further configured to control the compressor to operate at a constant preset speed when the difference between the temperature of the ice-making chamber and the temperature of the freezing chamber is less than the preset temperature difference.

[0014] A further improvement of an embodiment of the present invention further includes an ice making and defrosting sensor and a freezing and defrosting sensor, wherein the ice making and defrosting sensor is used to detect the temperature of the ice making evaporator, and the freezing and defrosting sensor is used to detect the temperature of the freezing evaporator;

[0015] The control module is further configured to control the compressor to reduce its speed when the difference between the temperature of the ice-making evaporator and the temperature of the freezing evaporator is less than a first preset value.

[0016] According to a further improvement of an embodiment of the present invention, the ice making and defrosting sensor is provided at the refrigerant outlet of the ice making evaporator.

[0017] A further improvement of an embodiment of the present invention further includes an ice making and defrosting sensor for detecting the temperature of the ice making evaporator; the ice making and defrosting sensor includes a first ice making and defrosting sensor disposed at the refrigerant inlet of the ice making evaporator and a second ice making and defrosting sensor disposed at the refrigerant outlet of the ice making evaporator;

[0018] The control module is further configured to control the compressor speed to be increased when the temperature difference detected by the first ice making and defrosting sensor and the second ice making and defrosting sensor is greater than a second preset value.

[0019] According to a further improvement of an embodiment of the present invention, the ice maker includes a normal ice making mode and a rapid ice making mode;

[0020] The control module is further configured to: when the ice maker is in the normal ice-making mode, control the compressor to operate at a first compression speed; when the ice maker is in the fast ice-making mode, control the compressor to operate at a second compression speed, which is less than the first compression speed.

[0021] According to a further improvement of one embodiment of the present invention, the second compression speed is a preset minimum speed of the compressor.

[0022] In a further improvement of one embodiment of the present invention, the refrigeration system further includes:

[0023] A refrigeration fan, used to promote the flow of cold air in the refrigeration evaporator chamber to the freezing chamber;

[0024] an ice-making fan, configured to promote the flow of cold air in the ice-making evaporator chamber to the ice-making chamber;

[0025] The control module is further configured to: when the temperature difference between the ice-making chamber and the freezing chamber is greater than a first preset temperature difference, control the rotation speed of the freezing fan to decrease and increase the rotation speed of the ice-making fan.

[0026] A further improvement of an embodiment of the present invention is that the control module is further configured to: when the temperature of the freezer compartment and the ice-making compartment is greater than a second preset temperature difference, control the refrigeration fan to operate at a preset start-up rate, and the second preset temperature difference is greater than the first preset temperature difference.

[0027] According to a further improvement of an embodiment of the present invention, the control module is further configured to: obtain the preset startup rate according to the second preset temperature difference, and the preset startup rate is negatively correlated with the second preset temperature difference.

[0028] In the refrigeration appliance of the present invention, the refrigerant flows through the ice-making evaporator and then passes through the freezing evaporator again before returning to the compressor. When the temperature difference between the ice-making chamber and the freezing chamber is too large, the temperature of the freezing chamber is low and the cooling demand of the freezing chamber is small. The compressor is controlled to reduce the speed, thereby reducing the overall cooling supply, thereby reducing the cooling supply to the freezing chamber and avoiding the freezing chamber from being too cold. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a refrigeration appliance according to one embodiment of the present invention;

[0030] Figure 2 yes Figure 1 Schematic diagram of the refrigeration system of the refrigeration appliance shown. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0032] See also Figure 1 The present invention provides a refrigeration appliance 100, which may be a refrigerator. Refrigeration appliance 100 may include a housing 110, which may include a storage compartment. The storage compartment may include a freezer compartment 112. Alternatively, the storage compartment may include a refrigerator compartment 111 and a temperature-changing chamber. Refrigeration appliance 100 may include a door 120 for opening and closing the storage compartment. An independent ice-making chamber 113 may be provided within housing 110 or on door 120. Ice-making chamber 113 may have insulated compartment walls and a compartment door.

[0033] An ice maker may be installed in the ice making chamber 113 , and water may be automatically supplied to the ice maker through an external water source.

[0034] The refrigeration appliance 100 may further include an ice-making evaporator chamber and a freezing evaporator chamber. The ice-making evaporator chamber may be in cold air communication with the ice-making chamber 113 , and the freezing evaporator chamber may be in cold air communication with the freezing chamber 112 .

[0035] In one embodiment of the present invention, the ice-making evaporator chamber can be set at any position in the refrigeration appliance 100, such as in the refrigerator compartment 111, the freezer compartment 112, or the ice-making compartment 113, and can be connected to the ice-making compartment 113 through a cold air duct.

[0036] In this embodiment, the refrigeration appliance 100 further includes a refrigeration system. The refrigeration system may include a compressor 210, an ice-making evaporator 251, and a freezing evaporator 241. The refrigeration appliance 100 may have a compressor compartment, in which the compressor 210 may be installed, the ice-making evaporator 251 may be located within the ice-making evaporator compartment, and the freezing evaporator 241 may be located within the freezing evaporator compartment.

[0037] The refrigeration appliance 100 may further include a refrigeration blower, which is used to promote the flow of cold air in the freezing evaporator chamber to the freezing chamber 112. The refrigeration blower can be installed in the freezing evaporator chamber. Of course, the refrigeration blower can also be installed in the air duct that the freezing chamber 112 communicates with the freezing evaporator chamber.

[0038] In this embodiment, part of the refrigerant from the compressor 210 flows through the ice-making evaporator 251 and then flows into the freezing evaporator 241, while part of the refrigerant flows directly through the freezing evaporator 241. In this embodiment, the refrigerant flowing out of the compressor 210 passes through the condenser and is split by a one-inlet-multiple-outlet solenoid valve. Part of the refrigerant flows directly into the freezing evaporator 241 through the freezing capillary tube and then flows back to the compressor 210, while part of the refrigerant flows through the ice-making capillary tube, passes through the ice-making evaporator 251, and then flows through the freezing evaporator 241 and returns to the compressor 210.

[0039] See also Figure 2 In one embodiment of the present invention, the refrigeration system further includes a condenser and a filter drier. The refrigeration system may also include a refrigeration evaporator 231 for providing cold air to the refrigeration compartment 111, and a temperature-variable evaporator for providing cold air to the temperature-variable compartment. The refrigerant flowing out of the compressor 210 is split by a one-inlet, three-outlet solenoid valve. One path flows directly through the freezing capillary tube to the freezing evaporator 241, while another path flows directly through the temperature-variable capillary tube to the temperature-variable evaporator. The other path is further split by a one-inlet, two-outlet solenoid valve into two paths, one through the ice-making capillary tube to the ice-making evaporator 251, and the other through the refrigeration capillary tube to the refrigeration evaporator 231. After passing through the ice-making evaporator 251, the refrigeration evaporator 231, and the temperature-variable evaporator, the refrigerant flows to the freezing evaporator 241 and then returns to the compressor 210 through the freezing evaporator 241.

[0040] Of course, if the refrigeration appliance 100 does not have a refrigeration chamber 111 or a variable temperature chamber, it does not have a corresponding evaporator. Alternatively, the refrigeration chamber 111 and the variable temperature chamber can also be cooled by other refrigeration systems, that is, the evaporator in the refrigeration system can only include an ice-making evaporator 251 and a freezing evaporator 241.

[0041] The volume of the ice making chamber 113 is smaller than that of the freezing chamber 112. The refrigeration demand in the freezing chamber 112 is generally higher. Such a setting can make full use of the cooling capacity, meet the refrigeration demand of the freezing chamber 112, and improve the refrigeration efficiency.

[0042] In this embodiment, the refrigeration appliance 100 further includes an ice-making temperature sensor and a freezing temperature sensor. The ice-making temperature sensor is used to detect the temperature in the ice-making chamber 113 and can be placed in the ice-making chamber 113. The freezing temperature sensor is used to detect the temperature in the freezing chamber 112 and can be placed in the freezing chamber 112.

[0043] The refrigeration appliance 100 may further include a control module, which may be communicatively connected to the ice-making temperature sensor, the freezing temperature sensor, and the compressor 210 .

[0044] The control module is configured to control the speed of the compressor 210 to decrease when the difference between the temperature of the ice making chamber 113 and the temperature of the freezing chamber 112 is greater than a preset temperature difference.

[0045] In this embodiment, the refrigerant flows through the ice-making evaporator 251, then enters the freezing evaporator 241 and returns to the compressor 210. The cooling capacity of the refrigerant flowing through the ice-making evaporator 251 is reused. Therefore, the temperature of the freezer compartment 112 is lower than that of the ice-making compartment 113. While the ice-making compartment is being cooled, the freezer compartment 112 is also continuously cooled.

[0046] The temperature of the general ice making chamber 113 is preset by a program, can be a constant value, and can also automatically fluctuate the temperature of other compartments associated therewith according to the ambient temperature. Other compartments associated therewith are generally storage compartments adjacent to the ice making chamber 113.

[0047] When the temperature difference between freezer compartment 112 and ice-making compartment 113 exceeds a first preset temperature, the temperature of freezer compartment 112 falls below the preset value. Generally, the temperature of the ice-making compartment can range from -15°C to -21°C, and the first preset temperature can be between 4°C and 8°C. A temperature that is too low in freezer compartment 112 can affect refrigeration within freezer compartment 112, such as frost or excessively low temperatures that can affect food stored therein. In particular, when ice-making compartment 113 is located within freezer compartment 112 or adjacent to freezer compartment 112, a significant temperature difference between the two can easily cause deformation of the insulating partition separating them.

[0048] Therefore, when the temperature difference between the ice making chamber 113 and the freezing chamber 112 is greater than the preset temperature difference, the speed of the compressor 210 is controlled to be reduced, which can reduce the cold air supply to the freezing chamber 112 and prevent the temperature of the freezing chamber 112 from being too low.

[0049] Furthermore, in one embodiment of the present invention, the control module is further configured to control the compressor 210 to operate at a constant preset speed when the temperature difference between the freezing chamber 112 and the ice making chamber 113 is less than a preset temperature difference.

[0050] In this embodiment, when the temperature difference between the ice-making chamber 113 and the freezer chamber 112 is greater than the preset temperature difference, the cooling capacity provided by the refrigeration system is in an optimal state and can meet the cooling needs of the ice-making chamber 113 and the freezer chamber 112 at the same time. Therefore, at this time, the compressor 210 can be maintained in stable operation to obtain a more uniform temperature and simplify the control program.

[0051] Furthermore, in one embodiment of the present invention, the refrigeration system further includes an ice-making and defrosting sensor and a freezing and defrosting sensor. The ice-making and defrosting sensor is used to detect the temperature of the ice-making evaporator 251 , and the freezing and defrosting sensor is used to detect the temperature of the freezing evaporator 241 .

[0052] The control module is further configured to control the speed of the compressor 210 to be reduced when the difference between the temperature of the ice-making evaporator 251 and the temperature of the freezing evaporator 241 is less than a first preset value.

[0053] In a specific embodiment, the ice-making and defrost sensor can be installed at the outlet of the refrigerant of the ice-making evaporator 251. The temperature detected by the ice-making and defrost sensor is basically equal to the temperature at the inlet of the refrigerant of the freezing evaporator 241. The freezing and defrost sensor can be installed at the outlet of the refrigerant of the freezing evaporator 241, or the area in the freezing evaporator 241 that is most prone to frost.

[0054] The difference between the temperature of ice-making evaporator 251 and the temperature of freezing evaporator 241 is substantially the same as the difference between the temperature of the refrigerant inlet of freezing evaporator 241 and the temperature of the refrigerant outlet of freezing evaporator 241. When the temperature difference between ice-making evaporator 251 and freezing evaporator 241 is large, the temperature of the refrigerant in freezing evaporator 241 is high, and the cooling capacity of freezing evaporator 241 is low. Therefore, when the cooling capacity of freezing evaporator 241 needs to be reduced, the temperature difference between freezing evaporator 241 and ice-making evaporator 251 can be increased to maintain it above a first preset value. When it is detected that the temperature difference between freezing evaporator 241 and ice-making evaporator 251 is less than the first preset value, i.e., the cooling capacity of freezing evaporator 241 is high, the speed of compressor 210 can be reduced, thereby reducing the amount of cooling delivered to freezing evaporator 241.

[0055] Furthermore, in one embodiment of the present invention, the ice making and defrosting sensors include a first ice making and defrosting sensor disposed at the refrigerant inlet of the ice making evaporator 251 and a second ice making and defrosting sensor disposed at the refrigerant outlet of the ice making evaporator 251. The control module is further configured to increase the speed of the compressor 210 when the temperature difference detected by the first ice making and defrosting sensor and the second ice making and defrosting sensor is greater than a second preset value.

[0056] In this embodiment, the first preset value may be equal to the second preset value, both being 2° C. to 3° C. When the temperature difference between the refrigerant inlet and the refrigerant outlet of the ice-making evaporator 251 is large, the refrigeration capacity of the ice-making evaporator 251 is weak, that is, the cooling capacity of the refrigerant provided by the compressor 210 cannot meet the demand of the ice-making chamber 113. In this case, it is necessary to increase the speed of the compressor 210 to increase the overall cooling capacity, thereby providing sufficient cooling capacity for the ice-making evaporator 251 to meet the ice-making demand.

[0057] Furthermore, in one embodiment of the present invention, the ice maker includes a normal ice making mode and a fast ice making mode.

[0058] The control module is further configured to: when the ice maker is in normal ice making mode, control the compressor 210 to operate at a first compression speed; when the ice maker is in fast ice making mode, control the compressor 210 to operate at a second compression speed, which is less than the first compression speed.

[0059] In this embodiment, the refrigeration appliance 100 may be equipped with interactive modules such as a display screen and a voice module. The user can control the ice-making mode through the interactive modules, selecting whether the ice-maker operates in normal or rapid ice-making mode. When the ice-maker operates in rapid ice-making mode, the cooling capacity supplied to the ice-making chamber 113 is increased while the cooling capacity supplied to the freezer compartment 112 is reduced, thereby rapidly lowering the temperature of the ice-making chamber 113. At this time, the temperature of the ice-making chamber 113 is lower than that in normal ice-making mode. In normal ice-making mode, the temperature of the ice-making chamber 113 may range from -15°C to -21°C, while in rapid ice-making mode, the temperature of the ice-making chamber 113 may range from -22°C to -26°C. Therefore, the ice-making speed of the ice-making machine in rapid ice-making mode is faster than that in normal ice-making mode, meeting the user's various ice-making needs.

[0060] When the ice maker is in the fast ice making mode, the temperature of the ice making chamber 113 drops rapidly to a lower temperature, and the temperature difference between the ice making chamber 113 and the freezer chamber 112 increases. Therefore, at this time, the speed of the compressor 210 can be reduced so that the compressor 210 runs at a lower second compression speed, reducing the overall cooling capacity, thereby reducing the cooling capacity supplied by the freezer chamber 112.

[0061] In one embodiment of the present invention, the second compression speed can be a preset minimum speed of the compressor 210. In this way, when the compressor 210 operates at the preset minimum speed, the cooling capacity of the refrigerant provided can only meet the cooling demand of the ice-making chamber 113, thereby minimizing the cooling capacity supplied to the freezer chamber 112.

[0062] When the ice maker is operating in normal ice-making mode, if the temperature difference between the ice-making chamber 113 and the freezer compartment 112 is less than a preset temperature difference, the compressor 210 can be controlled to operate at a constant first compression speed. If the temperature difference between the ice-making chamber 113 and the freezer compartment 112 is greater than the preset temperature difference, the compressor 210 can be controlled to reduce its speed to a speed less than the first compression speed. If the user adjusts the ice-making mode of the ice maker to the rapid ice-making mode, the compressor 210 can be directly controlled to operate at the second compression speed to avoid the adverse effects of rapid ice-making on the freezer compartment 112.

[0063] Furthermore, in one embodiment of the present invention, the refrigeration system further includes a refrigeration fan and an ice-making fan. The refrigeration fan is used to promote the flow of cold air from the freezer evaporator chamber to the freezer compartment 112. The refrigeration fan can be installed in the freezer evaporator chamber or in the cold air duct connecting the freezer evaporator chamber and the freezer compartment 112. The ice-making fan is used to promote the flow of cold air from the ice-making evaporator chamber to the ice-making compartment 113. The ice-making fan can be installed in the ice-making evaporator chamber or in the cold air duct connecting the ice-making evaporator 251 and the ice-making compartment 113.

[0064] The control module is further configured to: when the temperature difference between the ice-making chamber 113 and the freezing chamber 112 is greater than a first preset temperature difference, control the rotation speed of the freezing fan to decrease and increase the rotation speed of the ice-making fan.

[0065] In this embodiment, the first preset temperature difference may be the same as the above-mentioned preset temperature difference, which is 4-8° C. By reducing the rotation speed of the refrigeration fan, the cooling capacity supplied to the freezing chamber 112 can be further reduced. At the same time, by increasing the rotation speed of the ice-making fan, the cooling capacity supplied to the ice-making chamber 113 can be increased. Thus, the ice-making speed can be increased, ensuring the cooling capacity of the ice-making chamber 113 while reducing the cooling capacity of the freezing chamber 112, thereby preventing the temperature of the freezing chamber 112 from being too low and the temperature difference between the ice-making chamber 113 and the freezing chamber 112 from being too large.

[0066] Furthermore, in one embodiment of the present invention, the control module is further configured to:

[0067] When the temperature of the ice making chamber 113 and the freezing chamber 112 is greater than a second preset temperature difference, the freezing fan is controlled to operate at a preset start-up rate, wherein the second preset temperature difference is greater than the first preset temperature difference.

[0068] In this embodiment, the first preset temperature difference may be 4-8° C., and the second preset temperature difference may be 13-17° C. If the temperature of the freezing chamber 112 continues to decrease after reducing the rotation speed of the freezing fan and / or increasing the rotation speed of the ice-making fan, and the temperature difference between the freezing chamber 112 and the ice-making chamber 113 continues to increase, then when the temperature difference between the freezing chamber 112 and the ice-making chamber 113 is greater than the second preset temperature difference, the freezing fan may be controlled to operate at a preset start-up rate.

[0069] The preset on-rate can be the ratio of the on-time to the cycle within an operating cycle. For example, if the operating cycle of a refrigeration fan is 5 minutes, and the refrigeration fan operates in a cycle of on for 2 minutes and off for 3 minutes, the on-rate is 2 / 5.

[0070] Like this, reducing the running time of refrigeration fan can further reduce the cold air supply in freezing chamber 112. At the same time, keeping refrigeration fan in operation can avoid the severe frost in the freezing evaporator room caused by refrigeration fan not running at all.

[0071] Furthermore, in one embodiment of the present invention, the control module is further configured to:

[0072] A preset startup rate is obtained according to the second preset temperature difference, and the preset startup rate is negatively correlated with the second preset temperature difference.

[0073] In this embodiment, the refrigeration appliance 100 may be provided with a memory, which may store a second preset temperature difference-on-rate correspondence table, and the corresponding preset on-rate may be directly obtained based on the second preset temperature difference. The greater the temperature difference between the ice-making chamber 113 and the freezer chamber 112, the lower the temperature of the freezer chamber 112, the less cooling capacity required by the freezer chamber 112, and the lower the on-rate of the refrigeration fan, i.e., the shorter the on-time, the less cooling capacity is supplied to the freezer chamber 112. In this way, the temperature difference between the freezer chamber 112 and the ice-making chamber 113 can be more effectively avoided from further increasing.

[0074] In this embodiment, the control module can also be configured as follows: when the ice maker is in normal ice-making mode and the temperature difference between the freezer chamber 112 and the ice-making chamber 113 is less than a first preset temperature difference, the ice-making fan is controlled to run at a first ice-making speed, and the freezing fan is controlled to run at a first freezing speed; when the ice maker is in fast ice-making mode, the ice-making fan is controlled to run at a second ice-making speed, and the freezing fan is controlled to run at a second freezing speed, wherein the first ice-making speed is less than the second ice-making speed, and the first freezing speed is greater than the second freezing speed.

[0075] In this embodiment, when the ice maker is running in the normal ice-making mode, if the temperature difference between the ice-making chamber 113 and the freezing chamber 112 is less than the first preset temperature difference, the control module can control the refrigeration fan to run at a constant first freezing speed and the compressor 210 to run at a constant first compression speed; when the ice maker is running in the normal ice-making mode, if the temperature difference between the ice-making chamber 113 and the freezing chamber 112 is greater than the first preset temperature difference, the control module can control the refrigeration fan to reduce the speed to run at a speed lower than the first freezing speed, and control the compressor 210 to reduce the speed to run at a speed lower than the first compression speed. In the embodiment of the present invention, a correspondence table between temperature difference and refrigeration fan speed, as well as a correspondence table between temperature difference and compressor 210 speed may be stored in the memory. The larger the first preset temperature difference, the lower the speed of the refrigeration fan and compressor 210, thereby reducing the cooling capacity supplied to the freezing chamber 112. When the temperature difference between the ice making chamber 113 and the freezing chamber 112 is a second preset temperature difference, the refrigeration fan may be controlled to operate at a second freezing speed, and the compressor 210 may be controlled to operate at a second compression speed. The second freezing speed may be a preset minimum speed for the refrigeration fan, and the second compression speed may be a preset minimum speed for the compressor 210. When the ice making mode of the ice maker is adjusted to the rapid ice making mode, the refrigeration fan is directly controlled to operate at the second freezing speed, and the compressor 210 is directly controlled to operate at the second compression speed.

[0076] Thus, when the ice maker mode is changed to the fast ice making mode, the speed of the ice making fan can be directly controlled to increase, the speed of the freezing fan can be reduced, and the speed of the compressor 210 can be reduced, so as to efficiently and quickly adjust the cooling capacity of the ice making chamber 113 and the freezing chamber 112. When the compressor 210 is running at the preset minimum speed, the cooling capacity of the refrigerant supplied by the compressor 210 can only meet the cooling demand of the ice making chamber 113, thereby reducing the temperature of the ice making chamber 113 while avoiding the temperature of the freezing chamber 112 from decreasing.

[0077] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0078] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A refrigeration appliance comprising: an ice-making chamber and an ice-making evaporator chamber in cold air communication with the ice-making chamber; a freezing chamber and a freezing evaporator chamber in cold air communication with the freezing chamber; A refrigeration system comprising a compressor, an ice-making evaporator installed in the ice-making evaporator chamber, and a freezing evaporator installed in the freezing evaporator chamber; It is characterized in that part of the refrigerant from the compressor flows through the ice-making evaporator and then flows into the freezing evaporator through the freezing evaporator, and part of the refrigerant flows directly through the freezing evaporator; The refrigeration appliance further comprises: An ice-making temperature sensor, used for detecting the temperature in the ice-making chamber; A freezing temperature sensor, used to detect the temperature inside the freezing chamber; The control module is configured to control the rotation speed of the compressor to decrease when the difference between the temperature of the ice-making chamber and the temperature of the freezing chamber is greater than a preset temperature difference.

2. The refrigeration appliance according to claim 1, characterized in that: The control module is further configured to control the compressor to operate at a constant preset speed when the difference between the temperature of the ice-making chamber and the temperature of the freezing chamber is less than the preset temperature difference.

3. The refrigeration appliance according to claim 1, characterized in that: It also includes an ice making and defrosting sensor and a freezing and defrosting sensor, wherein the ice making and defrosting sensor is used to detect the temperature of the ice making evaporator, and the freezing and defrosting sensor is used to detect the temperature of the freezing evaporator; The control module is further configured to control the compressor to reduce its speed when the difference between the temperature of the ice-making evaporator and the temperature of the freezing evaporator is less than a first preset value.

4. The refrigeration appliance according to claim 3, characterized in that: The ice making and defrosting sensor is arranged at the refrigerant outlet of the ice making evaporator.

5. The refrigeration appliance according to claim 1, characterized in that: It also includes an ice making and defrosting sensor for detecting the temperature of the ice making evaporator; the ice making and defrosting sensor includes a first ice making and defrosting sensor placed at the refrigerant inlet of the ice making evaporator and a second ice making and defrosting sensor placed at the refrigerant outlet of the ice making evaporator; The control module is further configured to control the compressor speed to be increased when the temperature difference detected by the first ice making and defrosting sensor and the second ice making and defrosting sensor is greater than a second preset value.

6. The refrigeration appliance according to claim 1, characterized in that: The ice maker includes a normal ice making mode and a fast ice making mode; The control module is further configured to: when the ice maker is in the normal ice-making mode, control the compressor to operate at a first compression speed; when the ice maker is in the fast ice-making mode, control the compressor to operate at a second compression speed, which is less than the first compression speed.

7. The refrigeration appliance according to claim 6, characterized in that: The second compression speed is a preset minimum speed of the compressor.

8. The refrigeration appliance according to claim 1, characterized in that: The refrigeration system further comprises: A refrigeration fan, used to promote the flow of cold air in the refrigeration evaporator chamber to the freezing chamber; an ice-making fan, configured to promote the flow of cold air in the ice-making evaporator chamber to the ice-making chamber; The control module is further configured to: when the temperature difference between the ice-making chamber and the freezing chamber is greater than a first preset temperature difference, control the rotation speed of the freezing fan to decrease and increase the rotation speed of the ice-making fan.

9. The refrigeration appliance according to claim 8, characterized in that: The control module is further configured to control the refrigeration fan to operate at a preset start-up rate when the temperature of the freezing chamber and the ice-making chamber is greater than a second preset temperature difference, and the second preset temperature difference is greater than the first preset temperature difference.

10. The refrigeration appliance according to claim 9, characterized in that: The control module is further configured to obtain the preset startup rate according to the second preset temperature difference, and the preset startup rate is negatively correlated with the second preset temperature difference.

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