Control method of a refrigeration device

Abstract

A control method of a refrigeration device, the control method comprising the following steps: S1, obtaining an adjustment instruction of cooling water; S2, obtaining a temperature T1 of a refrigeration chamber and a temperature T2 of a variable temperature chamber at a preset time interval; S3, after the temperature T2 of the variable temperature chamber is lower than the temperature T1 of the refrigeration chamber, controlling a water pump to draw the cooling water in a first water box into a second water box, and after the temperature T3 of the second water box reaches a set temperature Ta, controlling the water pump to draw the cooling water in the second water box into the first water box; after a user adjusts the use temperature of the cooling water, when it is judged that the temperature of the variable temperature chamber is lower than that of the refrigeration chamber, the cooling water in the first water box in the refrigeration chamber is drawn into the second water box in the variable temperature chamber by the water pump to perform cooling, so that the cooling speed of the cooling water is accelerated, and the waiting time of the user for taking water is reduced.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment, and more particularly to a control method for refrigeration equipment. Background Technology

[0002] Currently, with the expansion of refrigeration equipment functions, ice-making and chilled water functions are becoming increasingly common. Therefore, refrigeration equipment needs water tanks with a certain water storage capacity. Cooling water is mostly cooled using a cold storage compartment. Since the cooling rate of the cold storage compartment is constant, when the user significantly lowers the set temperature of the cooling water, the time required to continue cooling the cooling water using the cold storage compartment is longer, increasing the user's waiting time for water. Summary of the Invention

[0003] The purpose of this invention is to provide a control method for a refrigeration device with a short waiting time for water intake.

[0004] To achieve one of the above-mentioned objectives, one embodiment of the present invention provides a control method for a refrigeration device. The refrigeration device includes a first water box for storing cooling water, a second water box, a water pipe connecting the first water box and the second water box, and a water pump installed on the water pipe. The first water box is installed in a cold storage compartment, and the second water box is installed in a variable temperature compartment. The control method includes the following steps:

[0005] S1. Obtain the cooling water adjustment command;

[0006] S2. Obtain the temperature T1 of the cold storage compartment and the temperature T2 of the variable temperature compartment at preset time intervals;

[0007] S3. After the temperature T2 of the variable temperature chamber is lower than the temperature T1 of the cold storage chamber, control the water pump to draw cooling water from the first water box to the second water box. After the temperature T3 of the second water box reaches the set temperature Ta, control the water pump to draw cooling water from the second water box to the first water box.

[0008] As a further improvement of one embodiment of the present invention, the refrigeration equipment includes a refrigeration liner forming a refrigeration chamber and an insulation curtain disposed in the refrigeration liner. The insulation curtain has an open state and a closed state. When the insulation curtain is in the open state, a first compartment and a second compartment are formed in the refrigeration chamber, which are spaced apart from each other. The first water box is disposed in the first compartment. In step S3, after obtaining that the temperature T2 of the variable temperature chamber is not lower than the temperature T1 of the refrigeration chamber, it is determined whether the set temperature Tb of the cooling water is lower than the temperature T1 of the refrigeration chamber. When the set temperature Tb of the cooling water is not lower than the temperature T1 of the refrigeration chamber, the insulation curtain is controlled to be in the open state.

[0009] As a further improvement of one embodiment of the present invention, in step S3, it is determined whether the set temperature Tb of the cooling water is lower than the temperature T1 of the refrigerator compartment, and when the set temperature Tb of the cooling water is lower than the temperature T1 of the refrigerator compartment, the heat preservation curtain is controlled to be closed.

[0010] As a further improvement of one embodiment of the present invention, in step S3, the heat preservation curtain is controlled to be in a closed state, and when the temperature T4 of the first water box reaches the set temperature Ta, the heat preservation curtain is controlled to be in an open state.

[0011] As a further improvement of one embodiment of the present invention, in step S3, the heat preservation curtain is controlled to be in a closed state, and when the set temperature Tb of the cooling water is not lower than the temperature T1 of the cold storage room, the heat preservation curtain is controlled to be in an open state.

[0012] As a further improvement of one embodiment of the present invention, the refrigeration equipment further includes a connecting ventilation duct formed in the refrigeration inner liner and exposed to the first and second compartments, a connecting ventilation door disposed in the connecting ventilation duct, and a connecting ventilation fan disposed in the connecting ventilation duct. In step S3, after the water pump draws cooling water from the second water box to the first water box, the heat preservation curtain is controlled to be in the open state.

[0013] As a further improvement of one embodiment of the present invention, the control method includes step S4: when the heat preservation curtain is in the open state, open the connecting ventilation door and the connecting ventilation fan.

[0014] As a further improvement of one embodiment of the present invention, in step S4, after obtaining that the heat preservation curtain is in the open state, the opening angle of the connecting ventilation door is controlled to be N1, and the connecting ventilation fan is controlled to run at a constant speed n1. After the temperature T4 of the first water box reaches the set temperature Tb of the cooling water, the opening angle of the connecting ventilation door is controlled to be N2, and the connecting ventilation fan is controlled to run at a constant speed n2.

[0015] As a further improvement of one embodiment of the present invention, in step S3, after obtaining that the heat preservation curtain is in the open state, the opening angle of the connecting ventilation door is controlled to be N3, and the connecting ventilation fan is controlled to run at a constant speed n3. When the temperature T4 of the first water box reaches the set temperature Ta, the opening angle of the connecting ventilation door is reduced, and the speed of the connecting ventilation fan is reduced.

[0016] As a further improvement of one embodiment of the present invention, the set temperature Ta in step S3 is equal to the set temperature Tb of the cooling water minus 2°C.

[0017] Compared with the prior art, in the embodiments of the present invention, after the user adjusts the operating temperature of the cooling water, when it is determined that the temperature of the variable temperature compartment is lower than that of the refrigerator compartment, the cooling water in the first water box in the refrigerator compartment will be pumped to the second water box in the variable temperature compartment for cooling, thereby accelerating the cooling speed of the cooling water and reducing the user's waiting time for water. Attached Figure Description

[0018] Figure 1 This is a partial cross-sectional schematic diagram of the refrigeration equipment in a preferred embodiment of the present invention;

[0019] Figure 2 yes Figure 1 Control flowchart of a preferred embodiment of a refrigeration equipment;

[0020] Figure 3 yes Figure 2 A further embodiment of step S3 in the control flowchart of one embodiment of the refrigeration equipment;

[0021] Figure 4 yes Figure 2 A further embodiment of step S3 in the control flowchart of another implementation of the refrigeration equipment;

[0022] Figure 5 yes Figure 2 Further implementation of the control flowchart for refrigeration equipment;

[0023] Figure 6 yes Figure 2 A further implementation of step S3 in the control flowchart of another embodiment of the refrigeration equipment. Detailed Implementation

[0024] The present invention will now be described in detail 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 modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0025] It should be understood that terms such as "upper," "lower," "outer," and "inner," used herein to indicate spatial relative position, are for illustrative purposes to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms "spatial relative position" may be intended to include different orientations of the equipment in use or operation other than those shown in the figures.

[0026] In the various illustrations of this invention, for ease of illustration, certain dimensions of structures or parts may be exaggerated relative to other structures or parts; therefore, only the basic structure of the subject matter of this invention is used to illustrate the invention.

[0027] refer to Figure 1 and Figure 2 As shown, a preferred embodiment of the present invention provides a refrigeration device that can be configured as a refrigerator, freezer, or other refrigeration devices, as long as it is a refrigeration device equipped with a cold storage compartment and a variable temperature compartment.

[0028] Specifically, such as Figure 1 As shown, the refrigeration equipment includes a first water box 10 for storing cooling water, a second water box 20, a water pipe 30 connecting the first water box 10 and the second water box 20, and a water pump 40 mounted on the water pipe 30. In this embodiment, the first water box 10 and the second water box 20 are placed in the storage room of the refrigeration equipment, and cooling is achieved by utilizing the room temperature of the storage room. The water pump 40 is configured as a bidirectional pump. When the water pump 40 operates in the forward direction, it can draw liquid from the first water box 10 through the water pipe 30 and then transport it to the second water box 20 through the water pipe 30; when the water pump 40 operates in the reverse direction, it can draw liquid from the second water box 20 through the water pipe 30 and then transport it to the first water box 10 through the water pipe 30.

[0029] Specifically, the first water box 10 is located in the refrigerator compartment 50, and the second water box 20 is located in the variable temperature compartment 60. In this embodiment, the refrigeration equipment has an independent refrigerator compartment 50 and a variable temperature compartment 60. The temperature adjustment range of the refrigerator compartment 50 is configured to be between 1°C and 9°C, and the temperature adjustment range of the variable temperature compartment 60 is configured to be between -20°C and 5°C. Since the maximum set temperature of the second water box 20 is above 0°C, placing the second water box 20 in the variable temperature compartment 60 will not affect the normal use of the cooling water.

[0030] Of course, in some embodiments, the second water box 20 can also be placed in the freezer compartment to accelerate the cooling of the cooling water, as long as it is removed before the cooling water reaches its freezing point. Alternatively, the second water box 20 can be placed in another refrigeration compartment of the refrigeration equipment.

[0031] Furthermore, the refrigeration equipment includes a refrigerated inner liner 51 forming the refrigerated compartment 50 and an insulation curtain 53 disposed in the refrigerated inner liner 51. In this embodiment, the refrigerated compartment 50 and the variable temperature compartment 60 each use separate inner liners, which are disposed in the outer shell of the refrigeration equipment, and foamed material is disposed between the outer shell and the inner liner for heat insulation.

[0032] Specifically, the heat-insulating curtain 53 has an open state and a closed state. When the heat-insulating curtain 53 is in the open state, a first compartment 501 and a second compartment 502 are formed within the refrigerator compartment 50, spaced apart from each other. In this embodiment, the heat-insulating curtain 53 is configured as a roller blind and is made of heat-insulating material. The heat-insulating curtain 53 is opened and closed within the refrigerator liner 51 by rotation, for example, driven by a motor, thereby achieving the switching between the open and closed states. When the heat-insulating curtain 53 is in the open state, since the first compartment 501 and the second compartment 502 are isolated from each other, not only is heat transfer between the two compartments reduced, but also odor transfer between the two compartments is prevented. When the heat-insulating curtain 53 is in the closed state, the refrigerator compartment 50 resumes normal use, that is, the interior of the refrigerator compartment 50 is used as a single compartment at this time.

[0033] Furthermore, the first water box 10 is disposed within the first compartment 501. In this embodiment, since the first water box 10 is disposed within the first compartment 501, cooling of the first water box 10 can be achieved simply by cooling the first compartment 501, without needing to cool the entire cold storage compartment 50. This accelerates the cooling speed of the cooling water and saves energy consumption of the refrigeration equipment.

[0034] Furthermore, the refrigeration equipment also includes a connecting ventilation duct 55 formed in the refrigeration liner 51 and exposed to the first compartment 501 and the second compartment 502, a connecting ventilation door 57 disposed in the connecting ventilation duct 55, and a connecting ventilation fan 59 disposed in the connecting ventilation duct 55.

[0035] In this embodiment, the first compartment 501 and the second compartment 502 are connected by a connecting ventilation duct 55, enabling gas flow between them and facilitating heat transfer. The connection between the first compartment 501 and the second compartment 502 can be isolated or connected by controlling the opening and closing of the connecting ventilation door 57, or the amount of ventilation between them can be changed. The rotation speed of the connecting fan 59 is adjustable; changing the rotation speed of the connecting fan 59 alters the gas flow speed between the first compartment 501 and the second compartment 502, thereby changing the gas flow speed inside the refrigerator compartment 50 and consequently, the cooling rate within the refrigerator compartment 50.

[0036] Specifically, the ventilation duct 55 can be formed by recessing the inner liner 10 or by being embedded in the foam material. The ventilation door 57 is configured as an electric damper, and the opening angle of the ventilation door 57 is changed by the rotation angle of the motor. The air volume through the ventilation duct 55 is different when the ventilation door 57 is at different opening angles.

[0037] In addition, both the refrigerator compartment 50 and the variable temperature compartment 60 in this embodiment use air cooling for temperature reduction. When the refrigerator compartment 50 is circulated by air cooling, at least one set of air inlets and outlets needs to be provided on the first compartment 501 to ensure the cooling needs of the first compartment 501. Of course, one set of air inlets and outlets can also be provided on both the first compartment 501 and the second compartment 502. Alternatively, the refrigerator compartment 50 can use direct cooling for temperature reduction, in which case the refrigerator evaporator is placed in the first compartment 501 to ensure that the first compartment 501 has an independent cooling function.

[0038] The present invention also relates to a control method for a refrigeration device. The structure and function of the refrigeration device are as described above and will not be repeated here.

[0039] Reference Figure 2 As shown, the refrigeration equipment provided in the above embodiments relates to a control method for refrigeration equipment, the control method comprising the following steps:

[0040] S1. Obtain the cooling water adjustment command;

[0041] S2. Obtain the temperature T1 of the cold storage compartment and the temperature T2 of the variable temperature compartment at preset time intervals;

[0042] S3. After the temperature T2 of the variable temperature chamber is lower than the temperature T1 of the cold storage chamber, control the water pump to draw cooling water from the first water box to the second water box. After the temperature T3 of the second water box reaches the set temperature Ta, control the water pump to draw cooling water from the second water box to the first water box.

[0043] In this embodiment, in step S1, after the user changes the set temperature Tb of the cooling water, the refrigeration equipment receives a start signal, and the entire program begins to run. Of course, in some embodiments, the start signal in step S1 can also be the compressor start signal.

[0044] In step S2, the temperature T1 of the refrigerator compartment 50 refers to the temperature of the compartment of the refrigerator compartment 50, and the temperature T2 of the variable temperature compartment 60 refers to the temperature of the compartment of the variable temperature compartment 60. The temperature T1 of the refrigerator compartment 50 and the temperature T2 of the variable temperature compartment 60 can be obtained by temperature sensors installed in the corresponding compartments. The preset time interval is preferably one minute.

[0045] In step S3, the temperature T3 of the second water box 20 is obtained by a temperature sensor installed on the second water box 20, and the sensor detects T3 once every minute.

[0046] After the user changes the set temperature Tb of the cooling water, if the temperature of the variable temperature compartment 60 is determined to be lower than that of the refrigerator compartment 50, the water pump 40 will draw cooling water into the second water tank 520 in the variable temperature compartment 60 for cooling, thereby accelerating the cooling speed of the cooling water and reducing the user's waiting time for water. After the variable temperature compartment 60 has cooled the second water tank 20, the cooling water in the second water tank 20 will be drawn into the first water tank 10, making it convenient for the user to use the cooling water in the first water tank 10 in the refrigerator compartment 50.

[0047] Furthermore, in step S3, after the water pump draws cooling water from the second water box to the first water box, the insulation curtain is controlled to be in the open state. In this embodiment, after the cooling is completed, the cooling water flows back from the second water box 20 to the first water box 10 for use. At this time, the insulation curtain 53 is opened. The opened insulation curtain 53 not only reduces the loss of cold energy in the first water box 10 and the cooling water in the first water box 10 in the cold storage compartment 50, but also saves the energy required to maintain the temperature of the first water box 10 and the cooling water in the first water box 10.

[0048] Specifically, the set temperature Ta in step S3 is equal to the set temperature Tb of the cooling water minus 2°C. In this embodiment, since the second water box 20 is directly exposed to the variable temperature chamber 60, the second water box 20 transfers the cold energy in the variable temperature chamber 60 to the cooling water in the second water box 20 through heat transfer. That is, the temperature of the second water box 20 decreases faster than the temperature of the cooling water in the second water box 20. Therefore, when the temperature T3 of the second water box 20 is 2°C lower than the set temperature Tb of the cooling water, the actual temperature of the cooling water in the second water box 20 will be closer to the set temperature Tb of the cooling water. Thus, in step S3, when the temperature T3 of the second water box 20 is 2°C lower than the set temperature Tb of the cooling water, the actual temperature of the cooling water in the second water box 20 is closer to the set temperature Tb of the cooling water. Therefore, at this time, the cooling water in the second water box 20 is drawn into the first water box 10 for user use, and the temperature of the cooling water obtained by the user is closer to the set temperature Tb of the cooling water.

[0049] Of course, in some embodiments, the set temperature Ta is equal to the set temperature Tb of the cooling water minus other temperature values, such as 1°C, 3°C, etc.

[0050] Furthermore, in step S3, after obtaining that the temperature T2 of the variable temperature chamber is not lower than the temperature T1 of the cold storage chamber, it is determined whether the set temperature Tb of the cooling water is lower than the temperature T1 of the cold storage chamber, and when the set temperature Tb of the cooling water is not lower than the temperature T1 of the cold storage chamber, the heat preservation curtain is controlled to be in the open state.

[0051] In this embodiment, when the temperature T2 of the variable temperature chamber 60 is higher than the temperature T1 of the cold storage chamber 50, and the set temperature Tb of the cooling water is higher than the temperature T1 of the cold storage chamber 50, the existing room temperature of the cold storage chamber 50 can cool the first water box 10. At this time, the insulation curtain 53 is in the open state, which can divide the cold storage chamber 50 into two independent chambers, the first chamber 501 and the second chamber 502. Only the first chamber 501 needs to be cooled to cool the first water box 10. Compared with cooling the entire cold storage chamber 50, the cooling space is reduced, and the cooling water cools down faster.

[0052] Furthermore, in step S3, it is determined whether the set temperature Tb of the cooling water is lower than the temperature T1 of the refrigerator compartment, and when the set temperature Tb of the cooling water is lower than the temperature T1 of the refrigerator compartment, the heat preservation curtain is controlled to be closed.

[0053] In this embodiment, when the temperature T2 of the variable temperature chamber 60 is higher than the temperature T1 of the cold storage chamber 50, and the set temperature Tb of the cooling water is lower than the temperature T1 of the cold storage chamber 50, since the cold storage chamber 50 uses air cooling and the air inlet and outlet of the cold storage chamber 50 are preferably located in the first compartment 501, closing the insulation curtain can increase the air flow inside the entire cold storage chamber 50, thereby accelerating the cooling of the cold storage chamber 50. After the temperature T1 of the cold storage chamber 50 drops, the first water box 10 is then cooled, thereby accelerating the cooling speed of the cooling water, without affecting the normal use of the second compartment 502.

[0054] Reference Figure 3 As shown, in one embodiment of the refrigeration equipment control method, in step S3, the insulation curtain is controlled to be in a closed state, and when the temperature T4 of the first water box reaches the set temperature Ta, the insulation curtain is controlled to be in an open state.

[0055] In this embodiment, the temperature T4 of the first water box 10 is obtained by a temperature sensor installed on the first water box 10, and the sensor detects T4 every minute. In step S3, after the insulation curtain 53 is closed, when the temperature T4 of the first water box 10 is lower than the set temperature Ta, the refrigerator compartment 50 only needs to maintain the water temperature in the first water box 10. By opening the insulation curtain 53, the gas flow between the first compartment 501 and the second compartment 502 is reduced, which can reduce the temperature fluctuation of the cooling water in the first water box 10. Moreover, compared to cooling the entire refrigerator compartment 50 to maintain the temperature of the cooling water in the first water box 10, opening the insulation curtain 53 can also accelerate the cooling of the cooling water and save energy consumption of the refrigeration equipment.

[0056] Furthermore, since the first water tank 10 is directly exposed to the refrigerator compartment 50, it transfers the cold energy from the refrigerator compartment 50 to the cooling water within it via heat transfer. This means the temperature of the first water tank 10 decreases faster than the temperature of the cooling water within it. Therefore, when the temperature T4 of the first water tank 10 is 2°C lower than the set temperature Tb of the cooling water, the actual temperature of the cooling water within the first water tank 10 will be closer to the set temperature Tb. Consequently, in step S3, after the insulation curtain 53 is closed, if the temperature T4 of the first water tank 10 is found to be 2°C lower than the set temperature Tb of the cooling water, the actual temperature of the cooling water within the first water tank 10 is closer to the set temperature Tb. Therefore, opening the insulation curtain 53 at this point would be more reasonable.

[0057] Reference Figure 4 As shown, in another embodiment of the refrigeration equipment control method, in step S3, the insulation curtain is controlled to be in a closed state, and when the set temperature Tb of the cooling water is not lower than the temperature T1 of the cold storage room, the insulation curtain is controlled to be in an open state.

[0058] In this embodiment, in step S3, when the time required for the temperature T1 of the refrigerator compartment 50 to reach the set temperature Tb of the cooling water is shorter than the time required for the temperature T4 of the first water box to reach the set temperature Ta, the insulation curtain 53 is opened. Compared to cooling the entire refrigerator compartment 50, the cooling water cools down faster.

[0059] Therefore, regarding the two variables, when the temperature T4 of the first water box reaches the set temperature Ta and when the set temperature Tb of the cooling water is not lower than the temperature T1 of the refrigerator compartment 50, as long as either variable meets the requirements, the insulation curtain 53 can be controlled to be in the open state, thereby meeting different usage needs.

[0060] Reference Figure 5 As shown, the control method includes step S4: when the heat preservation curtain is in the open state, open the connecting ventilation door and the connecting ventilation fan.

[0061] In this embodiment, by opening the ventilation door 57 and the ventilation fan 59, the first compartment 501 and the second compartment 502 are kept connected, which can prevent the temperature of the second compartment 502 from rising and can form a complete air inlet and outlet circuit in the refrigerator compartment 50, so as not to affect the normal use of the refrigerator compartment 50.

[0062] Furthermore, in step S4, after obtaining that the heat preservation curtain is in the open state, the opening angle of the connecting ventilation door is controlled to N1, and the connecting ventilation fan is controlled to run at a constant speed n1. After the temperature T4 of the first water box reaches the set temperature Tb of the cooling water, the opening angle of the connecting ventilation door is controlled to N2, and the connecting ventilation fan is controlled to run at a constant speed n2.

[0063] In this embodiment, when the opening angle of the ventilation door 57 is N1, the airflow through the ventilation duct 55 is greater than when the opening angle of the ventilation door 57 is N2, and the rotational speed n1 is greater than the rotational speed n2. In step S4, after the temperature T4 of the first water box reaches the set temperature Tb of the cooling water, the airflow through the ventilation duct 55 and the rotational speed of the ventilation fan 59 are reduced to decrease the airflow between the first chamber 501 and the second chamber 502, thereby reducing the loss of cold energy from the first water box 10 in the first chamber 501, and thus reducing the energy consumption of the refrigeration equipment.

[0064] Of course, in some embodiments, the opening angles N1 and N2 and the rotational speeds n1 and n2 can be set to other specific values ​​as needed. For example, when the opening angle of the ventilation door 57 is N1, the air volume through the ventilation duct 55 is less than when the opening angle of the ventilation door 57 is N2, and / or the rotational speed n1 is less than the rotational speed n2.

[0065] Reference Figure 6 As shown, in another embodiment of the refrigeration equipment control method, in step S3, after obtaining that the heat preservation curtain is in the open state, the opening angle of the connecting ventilation door is controlled to be N3, and the connecting fan is controlled to run at a constant speed n3. When the temperature T4 of the first water box reaches the set temperature Ta, the opening angle of the connecting ventilation door is reduced, and the speed of the connecting fan is reduced.

[0066] In this embodiment, in step S3, the opening angle N3 of the connecting ventilation door is set to a different value than the opening angles N1 and N2, and the rotational speed n3 is set to a different value than the rotational speeds n1 and n2. These settings can be adjusted according to the usage environment or user habits. Step S3 is similar to step S4 in that, after the temperature T4 of the first water box reaches the set temperature Tb of the cooling water, the airflow through the connecting ventilation duct 55 and the rotational speed of the connecting fan 59 are reduced to decrease airflow between the first chamber 501 and the second chamber 502. This reduces the loss of cooling energy from the first water box 10 in the first chamber 501, thereby reducing the energy consumption of the refrigeration equipment.

[0067] In some embodiments, step S4 can be omitted, and only step S3 in this embodiment can be used, thereby simplifying the steps of the control program. Alternatively, step S3 in this embodiment and step S4 in the above embodiments can be selected as needed. This can be done through user selection or by the refrigeration equipment according to the usage environment or user habits, thereby enriching the control program and making it applicable to more scenarios.

[0068] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0069] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A control method for a refrigeration device, the refrigeration device comprising a first water box for storing cooling water, a second water box, a water pipe connecting the first water box and the second water box, and a water pump mounted on the water pipe, wherein the first water box is disposed in a cold storage compartment, and the second water box is disposed in a variable temperature compartment, characterized in that... The control method includes the following steps: S1. Obtain the cooling water adjustment command; S2. Obtain the temperature T1 of the cold storage compartment and the temperature T2 of the variable temperature compartment at preset time intervals; S3. After the temperature T2 of the variable temperature chamber is lower than the temperature T1 of the cold storage chamber, control the water pump to draw cooling water from the first water box to the second water box. After the temperature T3 of the second water box reaches the set temperature Ta, control the water pump to draw cooling water from the second water box to the first water box.

2. The control method for the refrigeration equipment as described in claim 1, characterized in that, The refrigeration equipment includes a refrigerated inner liner forming a refrigerated compartment and an insulation curtain disposed in the refrigerated inner liner. The insulation curtain has an open state and a closed state. When the insulation curtain is in the open state, a first compartment and a second compartment are formed in the refrigerated compartment. The first water box is disposed in the first compartment. In step S3, after obtaining that the temperature T2 of the variable temperature compartment is not lower than the temperature T1 of the refrigerated compartment, it is determined whether the set temperature Tb of the cooling water is lower than the temperature T1 of the refrigerated compartment. When the set temperature Tb of the cooling water is not lower than the temperature T1 of the refrigerated compartment, the insulation curtain is controlled to be in the open state.

3. The control method for the refrigeration equipment as described in claim 2, characterized in that, In step S3, it is determined whether the set temperature Tb of the cooling water is lower than the temperature T1 of the cold storage room, and when the set temperature Tb of the cooling water is lower than the temperature T1 of the cold storage room, the heat preservation curtain is controlled to be closed.

4. The control method for the refrigeration equipment as described in claim 3, characterized in that, In step S3, the heat preservation curtain is controlled to be closed, and when the temperature T4 of the first water box reaches the set temperature Ta, the heat preservation curtain is controlled to be opened.

5. The control method for the refrigeration equipment as described in claim 3, characterized in that, In step S3, the insulation curtain is controlled to be closed, and when the set temperature Tb of the cooling water is not lower than the temperature T1 of the cold storage room, the insulation curtain is controlled to be open.

6. The control method for the refrigeration equipment as described in claim 2, characterized in that, The refrigeration equipment also includes a connecting ventilation duct formed in the inner liner of the refrigerator and exposed to the first and second compartments, a connecting ventilation door set in the connecting ventilation duct, and a connecting ventilation fan set in the connecting ventilation duct. In step S3, after the water pump draws cooling water from the second water box to the first water box, the heat preservation curtain is controlled to be in the open state.

7. The control method for the refrigeration equipment as described in claim 6, characterized in that, The control method includes step S4: when the heat preservation curtain is in the open state, open the connecting ventilation door and the connecting ventilation fan.

8. The control method for the refrigeration equipment as described in claim 7, characterized in that, In step S4, after obtaining that the heat preservation curtain is in the open state, the opening angle of the connecting ventilation door is controlled to N1, and the connecting ventilation fan is controlled to run at a constant speed n1. After the temperature T4 of the first water box reaches the set temperature Tb of the cooling water, the opening angle of the connecting ventilation door is controlled to N2, and the connecting ventilation fan is controlled to run at a constant speed n2.

9. The control method for the refrigeration equipment as described in claim 6, characterized in that, In step S3, after obtaining that the heat preservation curtain is in the open state, the opening angle of the ventilation door is controlled to be N3, and the ventilation fan is controlled to run at a constant speed n3. When the temperature T4 of the first water box reaches the set temperature Ta, the opening angle of the ventilation door is reduced and the speed of the ventilation fan is reduced.

10. The control method for the refrigeration equipment as described in claim 1, characterized in that, The set temperature Ta in step S3 is equal to the set temperature Tb of the cooling water minus 2℃.

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