A method and device for adjusting freezing parameters of a dual-system refrigerator

Abstract

The present invention provides a method and device for adjusting freezing parameters of a dual-system refrigerator, in which the temperature of the refrigerated compartment is obtained after the compressor is turned on, and when the temperature of the refrigerated compartment is less than or equal to the refrigeration shutdown temperature, it is obtained and determined whether the temperature of the refrigerated compartment is in a preset temperature interval about the target freezing gear, and the left and right endpoints of the temperature interval are the preset freezing shutdown temperature and the preset freezing startup temperature respectively; if not, the temperature interval is expanded according to the preset rules, and the conduction of the freezing capillary and / or the closing of the compressor are controlled according to the temperature of the refrigerated compartment, until the temperature of the refrigerated compartment is less than or equal to the refrigeration shutdown temperature, the temperature of the refrigerated compartment is in the temperature interval determined most recently, and the left and right endpoint values ​​of the temperature interval are determined as the target freezing startup temperature and the target freezing shutdown temperature of the target freezing gear. Based on the scheme provided by the present invention, automatic adjustment of the temperature interval saves manpower and reduces costs.

Description

Technical Field

[0001] The present invention relates to the technical field of dual-system refrigerators, and in particular to a method and device for adjusting freezing parameters of a dual-system refrigerator. Background Art

[0002] At present, there is an optimal refrigeration control for dual-system refrigerators, that is, the refrigerated compartment is cooled first every time. When the temperature of the refrigerated compartment reaches the shutdown point, the temperature of the freezer compartment is just between the freezing start point and the freezing shutdown point. The solenoid valve switches to the freezing capillary, and the freezer compartment continues to cool until it reaches the freezing shutdown point, and then the compressor is turned off. This can ensure that the overall refrigeration cycle has the highest efficiency and the lowest energy consumption.

[0003] In order to achieve the above-mentioned goal, at present, for each freezing gear, a set of freezing start and stop temperatures are usually set by technicians first. If the temperature of the refrigerated compartment reaches the stop point and the temperature of the freezer compartment is not between the freezing start and stop temperatures, the technicians will continuously adjust the freezing start and stop temperatures until the temperature of the refrigerated compartment reaches the stop point and the temperature of the freezer compartment is between the freezing start and stop temperatures, which consumes a lot of manpower and is high in cost. Summary of the invention

[0004] An object of the present invention is to provide a method for automatically adjusting the freezing parameters of a dual-system refrigerator.

[0005] A further object of the present invention is to quickly determine the freezing start temperature and freezing stop temperature for each freezing gear of the dual-system refrigerator.

[0006] Another object of the present invention is to provide a freezing parameter adjustment device.

[0007] In particular, the present invention provides a method for adjusting freezing parameters of a dual-system refrigerator, which comprises:

[0008] After the compressor is turned on, the refrigerating compartment temperature is obtained. When the refrigerating compartment temperature is less than or equal to the refrigerating shutdown temperature, it is determined whether the freezing compartment temperature is within a preset temperature range for the target freezing gear, and the left and right endpoints of the temperature range are the preset freezing shutdown temperature and the freezing startup temperature, respectively.

[0009] If not, the temperature range is expanded according to a preset rule, and the conduction of the freezing capillary and / or the shutdown of the compressor are controlled according to the freezing compartment temperature, until the freezing compartment temperature is less than or equal to the refrigeration shutdown temperature, the freezing compartment temperature is in the most recently determined temperature range, and the left and right endpoint values ​​of the temperature range are determined as the target freezing startup temperature and the target freezing shutdown temperature for the target freezing gear.

[0010] Optionally, the step of expanding the temperature range according to a preset rule includes:

[0011] When the refrigerating compartment temperature is less than or equal to the refrigerating shutdown temperature and the freezing compartment temperature is not within the most recently determined temperature interval, the most recently determined temperature interval is expanded according to the freezing compartment temperature.

[0012] Optionally, the step of expanding the most recently determined temperature range according to the freezing compartment temperature comprises:

[0013] The most recently determined freezing start-up temperature is increased and the most recently determined freezing stop-up temperature is decreased according to the freezing compartment temperature.

[0014] Optionally, the step of increasing the most recently determined freezing start-up temperature and decreasing the most recently determined freezing stop-down temperature according to the freezing compartment temperature comprises:

[0015] If the freezing compartment temperature is greater than or equal to the most recently determined freezing start-up temperature, the freezing compartment temperature is determined as the current freezing start-up temperature, and the freezing compartment temperature and the most recently determined freezing start-up temperature are used to reduce the most recently determined freezing stop temperature to obtain the current freezing stop temperature;

[0016] If the freezer compartment temperature is less than or equal to the most recently determined freezing shutdown temperature, the freezer compartment temperature is determined as the current freezing shutdown temperature, and the freezer compartment temperature and the most recently determined freezing shutdown temperature are used to increase the most recently determined freezing start-up temperature to obtain the current freezing start-up temperature.

[0017] Optionally, the step of using the freezing compartment temperature and the most recently determined freezing start temperature to reduce the most recently determined freezing stop temperature to obtain the current freezing stop temperature comprises:

[0018] According to F off(n) =F off(n-1) -|FF on(n-1) |Determine the refrigeration shutdown temperature for this time,

[0019] Among them, F OFF(n) is the nth refrigeration shutdown temperature, F off(n-1) is the freezing shutdown temperature determined for the n-1th time, F is the freezing compartment temperature, F on(n-1) It is the freezing start-up temperature determined for the n-1th time.

[0020] Optionally, the step of using the freezing compartment temperature and the most recently determined freezing shutdown temperature to reduce the most recently determined freezing startup temperature to obtain the current freezing startup temperature includes:

[0021] According to Fon(n)＝ F on(n-1) +|FF off(n-1) |Determine the freezing start-up temperature for this time,

[0022] Among them, F on(n) is the nth freezing start-up temperature, F on(n-1) is the freezing start-up temperature determined for the n-1th time, F is the freezing compartment temperature, F off(n-1) It is the refrigeration shutdown temperature determined for the n-1th time.

[0023] Optionally, the step of controlling the conduction of the freezing capillary tube and / or the shutdown of the compressor according to the freezing compartment temperature comprises: if the freezing compartment temperature is greater than or equal to the freezing shutdown temperature determined most recently, conducting the freezing capillary tube until the freezing compartment temperature is less than the freezing shutdown temperature determined this time, and shutting down the compressor; and

[0024] If the temperature of the freezing compartment is less than or equal to the most recently determined freezing start-up temperature, the compressor is turned off.

[0025] Optionally, the start condition of the compressor is:

[0026] The temperature of the refrigerated compartment is greater than or equal to the refrigerated startup temperature; or

[0027] The refrigerating compartment temperature is between the refrigerating startup temperature and the refrigerating shutdown temperature and the freezing compartment temperature is greater than or equal to the most recently determined freezing startup temperature.

[0028] Optionally, the step of obtaining the temperature of the refrigerating compartment includes: obtaining the temperature of the refrigerating compartment detected by a temperature detecting device disposed in the refrigerating compartment; and

[0029] The step of obtaining the temperature of the freezing compartment includes: obtaining the temperature of the freezing compartment detected by a temperature detection device arranged in the freezing compartment.

[0030] According to another aspect of the present invention, a freezing parameter adjustment device is also provided, characterized in that it includes a memory and a processor, the memory stores a computer program, and when the computer program is executed by the processor, it is used to implement the freezing parameter adjustment method of the dual-system refrigerator as described in any one of the above items.

[0031] The present invention provides a method and device for adjusting freezing parameters of a dual-system refrigerator. In the method provided by the present invention, the temperature of the refrigerated compartment is obtained after the compressor is turned on. When the temperature of the refrigerated compartment is less than or equal to the refrigeration shutdown temperature, it is obtained and judged whether the temperature of the refrigerated compartment is in a preset temperature interval for a target freezing gear, and the left and right endpoints of the temperature interval are respectively the preset freezing shutdown temperature and the preset freezing startup temperature; if not, the temperature interval is expanded according to a preset rule, and the conduction of the freezing capillary and / or the closing of the compressor are controlled according to the temperature of the refrigerated compartment, until the temperature of the refrigerated compartment is less than or equal to the refrigeration shutdown temperature, the temperature of the refrigerated compartment is in the temperature interval determined most recently, and the left and right endpoint values ​​of the temperature interval are determined as the target freezing startup temperature and the target freezing shutdown temperature of the target freezing gear. Based on the technical solution provided by the present invention, the temperature interval is automatically adjusted to determine the target freezing startup temperature and the target freezing shutdown temperature for the target freezing gear, thereby saving manpower and reducing costs.

[0032] Furthermore, in the present invention, whenever the refrigerating compartment temperature is less than or equal to the refrigerating shutdown temperature and the freezing compartment temperature is not in the most recently determined temperature range, the most recently determined temperature range is expanded according to the freezing compartment temperature, so that the target freezing start-up temperature and the target freezing shutdown temperature for the target freezing gear can be determined as quickly as possible.

[0033] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below.

[0034] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0036] Figure 1 is a refrigeration principle diagram of a dual-system refrigerator according to an embodiment of the present invention;

[0037] Figure 2 is a flow chart of a method for adjusting freezing parameters of a dual-system refrigerator according to an embodiment of the present invention;

[0038] Figure 3is a complete flow chart of a method for adjusting freezing parameters of a dual-system refrigerator according to an embodiment of the present invention;

[0039] Figure 4 It is a schematic structural block diagram of a freezing parameter adjustment device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0040] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0041] It should be noted that the technical features in the embodiment and optional embodiments of the present invention can be combined with each other under the premise of no conflict.

[0042] Figure 1 is a refrigeration principle diagram of a dual-system refrigerator according to an embodiment of the present invention. Figure 1 As shown, the dual-system refrigerator includes a compressor 110, a condenser 120, a filter drier 130, a solenoid valve 140, a refrigeration capillary 150, a freezing capillary 170, a refrigeration evaporator 160 for refrigerating the refrigeration compartment, and a freezing evaporator 180 for refrigerating the freezing compartment. The compressor 110, the condenser 120, and the filter drier 130 are connected in sequence, and the filter drier 130 is also connected to the refrigeration evaporator 160 and the freezing evaporator 180 through the refrigeration capillary 150 and the freezing capillary 170, respectively. The refrigeration evaporator 160 and the freezing evaporator 180 are also connected, and the freezing evaporator 180 is also connected to the compressor 110. The solenoid valve 140 can be a three-way valve, and the solenoid valve 140 is arranged between the filter drier 130, the refrigeration capillary 150, and the freezing capillary 170. In one conduction state of the solenoid valve 140, the refrigeration capillary 150 is conducted, the refrigeration evaporator 160 and the freezing evaporator 180 are connected in series, and the refrigeration compartment and the freezing compartment are refrigerated together; in another conduction state of the solenoid valve 140, the freezing capillary 170 is conducted, the freezing evaporator 180 and the compressor 110 are connected in series, and only the freezing compartment is refrigerated, and the refrigeration capillary 150 and the freezing capillary 170 cannot be conducted at the same time.

[0043] Figure 2 FIG. 1 is a flow chart of a method for adjusting freezing parameters of a dual-system refrigerator according to an embodiment of the present invention. Figure 2 As shown, the method may at least include the following steps S202 and S204.

[0044] Step S202: After the compressor 110 is turned on, the refrigerating compartment temperature is obtained. When the refrigerating compartment temperature is less than or equal to the refrigerating shutdown temperature, it is determined whether the freezing compartment temperature is within a preset temperature range for the target freezing gear, and the left and right endpoints of the temperature range are the preset freezing shutdown temperature and the freezing startup temperature, respectively.

[0045] Step S204: If not, the temperature range is expanded according to the preset rules, and the conduction of the freezing capillary and / or the shutdown of the compressor 110 are controlled according to the freezer compartment temperature, until the freezer compartment temperature is less than or equal to the refrigeration shutdown temperature, the freezer compartment temperature is in the most recently determined temperature range, and the left and right endpoint values ​​of the temperature range are determined as the target freezing start-up temperature and the target freezing shutdown temperature of the target freezing gear.

[0046] To obtain the temperature of the refrigerating compartment, the temperature of the refrigerating compartment detected by a temperature detection device installed in the refrigerating compartment may be obtained; to obtain the temperature of the freezing compartment, the temperature of the freezing compartment detected by a freezing temperature detection device installed in the freezing compartment may be obtained. The temperature detection device may be a temperature sensor or an infrared thermometer.

[0047] In the embodiment of the present invention, the temperature of the refrigerated compartment is obtained after the compressor 110 is turned on. When the temperature of the refrigerated compartment is less than or equal to the refrigeration shutdown temperature, it is obtained and determined whether the temperature of the freezing compartment is in a preset temperature interval for the target freezing gear, and the left and right endpoints of the temperature interval are the preset freezing shutdown temperature and the preset freezing startup temperature respectively; if not, the temperature interval is expanded according to the preset rules, and the conduction of the freezing capillary and / or the closing of the compressor 110 are controlled according to the freezing compartment temperature, until the temperature of the freezing compartment is less than or equal to the refrigeration shutdown temperature, the freezing compartment temperature is in the temperature interval determined most recently, and the left and right endpoint values ​​of the temperature interval are determined as the target freezing startup temperature and the target freezing shutdown temperature of the target freezing gear. Based on the technical solution provided by the present invention, the temperature interval is automatically adjusted to determine the target freezing startup temperature and the target freezing shutdown temperature for the target freezing gear, thereby saving manpower and reducing costs.

[0048] In one embodiment of the present invention, expanding the temperature range according to a preset rule in the above step S204 may include: when the refrigerating compartment temperature is less than or equal to the refrigerating shutdown temperature and the freezing compartment temperature is not in the most recently determined temperature range, expanding the most recently determined temperature range according to the freezing compartment temperature.

[0049] The most recently determined temperature range is expanded according to the temperature of the freezing compartment, specifically, the most recently determined freezing start-up temperature is increased and the most recently determined freezing stop-down temperature is decreased according to the temperature of the freezing compartment.

[0050] Among them, if the current number is the first time, the temperature interval determined most recently is the preset temperature interval, and the refrigeration start-up temperature and refrigeration stop temperature determined most recently are the preset refrigeration start-up temperature and the preset refrigeration stop temperature respectively.

[0051] Among them, the most recently determined freezing start temperature is increased and the most recently determined freezing stop temperature is decreased according to the freezing compartment temperature, so that the target freezing stop temperature and the target freezing start temperature for the target freezing gear can be obtained as soon as possible.

[0052] In one embodiment of the present invention, the above-mentioned increasing the most recently determined freezing start-up temperature and decreasing the most recently determined freezing stop temperature according to the freezing chamber temperature may include: if the freezing chamber temperature is greater than or equal to the most recently determined freezing start-up temperature, determining the freezing chamber temperature as the current freezing start-up temperature, and using the freezing chamber temperature and the most recently determined freezing start-up temperature to decrease the most recently determined freezing stop temperature to obtain the current freezing stop temperature; if the freezing chamber temperature is less than or equal to the most recently determined freezing stop temperature, determining the freezing chamber temperature as the current freezing stop temperature, and using the freezing chamber temperature and the most recently determined freezing stop temperature to increase the most recently determined freezing stop temperature to obtain the current freezing start-up temperature.

[0053] The method of reducing the last determined freezing shutdown temperature by using the freezing compartment temperature and the last determined freezing startup temperature to obtain the current freezing shutdown temperature may include: off(n) =F off(n-1) -|FF on(n-1) |Determine the current refrigeration shutdown temperature, where F OFF(n) is the nth refrigeration shutdown temperature, F off(n-1) is the freezing shutdown temperature determined for the n-1th time, F is the freezing compartment temperature, F on(n-1) It is the freezing start-up temperature determined for the n-1th time.

[0054] In addition, using the freezing compartment temperature and the most recently determined freezing shutdown temperature to increase the most recently determined freezing shutdown temperature to obtain the current freezing startup temperature may include: on(n)＝ F on(n-1) +|FF off(n-1) |Determine the current refrigeration start-up temperature, where F on(n) It is the nth freezing start-up temperature.

[0055] By adjusting the freezing shutdown temperature and the freezing startup temperature according to the above algorithm, the target freezing shutdown temperature and the target freezing startup temperature for the target freezing gear can be obtained more quickly.

[0056] In one embodiment of the present invention, the above step S204 of controlling the conduction of the freezing capillary tube and / or the shutdown of the compressor 110 according to the freezing compartment temperature may include: if the freezing compartment temperature is greater than or equal to the most recently determined freezing shutdown temperature, then conducting the freezing capillary tube until the freezing compartment temperature is less than the currently determined freezing shutdown temperature, then shutting down the compressor 110; and if the freezing compartment temperature is less than or equal to the most recently determined freezing startup temperature, then shutting down the compressor 110. According to the above control, the target freezing shutdown temperature and target freezing startup temperature of the target freezing gear can be obtained more quickly.

[0057] In one embodiment of the present invention, the start condition of the compressor 110 is that the temperature of the refrigerated compartment is greater than or equal to the refrigerated start temperature; or the temperature of the refrigerated compartment is between the refrigerated start temperature and the refrigerated stop temperature and the temperature of the freezer compartment is greater than or equal to the most recently determined freezer start temperature.

[0058] Figure 3 1 is a complete flow chart of a method for adjusting freezing parameters of a dual-system refrigerator according to an embodiment of the present invention. Figure 3 The present invention provides a more complete and comprehensive description of the freezing parameter adjustment method of the dual-system refrigerator. Figure 3 As shown, the method may at least include the following steps S302-S320.

[0059] Step S302: Obtain the refrigerating compartment temperature R of the dual-system refrigerator and determine whether the refrigerating compartment temperature R is greater than or equal to the refrigerating startup temperature Ron; if not, execute step S304; if yes, execute step S308;

[0060] Step S304: Determine whether the refrigeration compartment temperature R is greater than the refrigeration shutdown temperature R off and is less than the refrigeration start-up temperature Ron; if so, execute step S306; if not, return to step S302;

[0061] Step S306: Determine whether the freezing compartment temperature F is greater than or equal to the most recently determined freezing start-up temperature F on(n-1) ; If yes, go to step S308; If no, go back to step S302;

[0062] Step S308: Control the compressor 110 to start and the refrigeration capillary 150 to be turned on, and then execute step S310;

[0063] Step S310: Determine whether the refrigeration compartment temperature R is less than or equal to the refrigeration shutdown temperature R off ; If yes, go to step S312; If yes, return to step S308;

[0064] Step S312: Determine whether the freezing compartment temperature F is greater than or equal to the most recently determined freezing start-up temperature F on(n-1) ; If yes, go to step S314; If no, go to step S316;

[0065] In this step, if the current number is the first time, the most recently determined refrigeration start-up temperature F on(0) It is the preset freezing start temperature.

[0066] Step S314: Determine the current refrigeration start-up temperature F on(n) is the freezer compartment temperature F, calculate the freezer compartment temperature and the most recently determined freezer start-up temperature F on(n-1) The difference between the two determines the current refrigeration shutdown temperature F off(n) The most recently determined refrigeration shutdown temperature F off(n-1) and control the freezing capillary 170 to be turned on, when the freezing compartment temperature is less than or equal to the current freezing shutdown temperature F off(n) When the compressor 110 is controlled to be turned off, the process returns to the above step S302;

[0067] In this step, if the current number is the first time, the most recently determined refrigeration shutdown temperature F off(0) It is the preset freezing shutdown temperature.

[0068] Step S316: Determine whether the freezing compartment temperature F is less than or equal to the most recently determined freezing shutdown temperature F off(n-1) ; If yes, go to step S318; If no, go to step S320;

[0069] Step S318: Determine the current refrigeration shutdown temperature F off(n) is the freezer compartment temperature F, calculate the freezer compartment temperature F and the most recently determined freezer shutdown temperature F off(n-1) The difference between the two determines the current refrigeration start-up temperature F on(n) The most recently determined refrigeration start-up temperature F on(n-1) and the absolute value of the difference; and control the compressor 110 to be turned off, and return to the above step S302;

[0070] Step S320: Control the compressor to shut down, and determine the most recently determined refrigeration shutdown temperature F off(n-1) and the most recently determined refrigeration start temperature F on(n-1) The target freezing stop temperature and the target freezing start temperature of the target freezing gear.

[0071] Based on the same inventive concept, the present invention also proposes a freezing parameter adjustment device 400, Figure 4FIG. 1 is a schematic structural block diagram of a refrigeration parameter adjustment device according to an embodiment of the present invention. Figure 4 As shown, the freezing parameter adjustment device 400 includes a memory and a processor 410. The memory 420 stores a computer program 421. When the computer program 421 is executed by the processor 410, it is used to implement the freezing parameter adjustment method of the dual-system refrigerator as in any of the above embodiments.

[0072] The present invention provides a method and device for adjusting freezing parameters of a dual-system refrigerator. In the method provided by the present invention, the temperature of the refrigerated compartment is obtained after the compressor 110 is turned on. When the temperature of the refrigerated compartment is less than or equal to the refrigeration shutdown temperature, it is obtained and determined whether the temperature of the refrigerated compartment is in a preset temperature interval for a target freezing gear, and the left and right endpoints of the temperature interval are respectively the preset freezing shutdown temperature and the preset freezing startup temperature; if not, the temperature interval is expanded according to a preset rule, and the conduction of the freezing capillary 170 and / or the closing of the compressor 110 are controlled according to the temperature of the refrigerated compartment, until the temperature of the refrigerated compartment is less than or equal to the refrigeration shutdown temperature, the temperature of the refrigerated compartment is in the temperature interval determined most recently, and the left and right endpoint values ​​of the temperature interval are determined as the target freezing startup temperature and the target freezing shutdown temperature of the target freezing gear. Based on the technical solution provided by the present invention, the temperature interval is automatically adjusted to determine the target freezing startup temperature and the target freezing shutdown temperature for the target freezing gear, thereby saving manpower and reducing costs.

[0073] Furthermore, in the present invention, whenever the refrigerating compartment temperature is less than or equal to the refrigerating shutdown temperature and the freezing compartment temperature is not in the most recently determined temperature range, the most recently determined temperature range is expanded according to the freezing compartment temperature, so that the target freezing start-up temperature and the target freezing shutdown temperature for the target freezing gear can be determined as quickly as possible.

[0074] In addition, the functional units in various embodiments of the present invention may be physically independent of each other, or two or more functional units may be integrated together, or all functional units may be integrated into one processing unit. The above integrated functional units may be implemented in the form of hardware, or in the form of software or firmware.

[0075] Those skilled in the art can understand that if the integrated functional unit is implemented in the form of software and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention can essentially or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, which includes a number of instructions to enable a computing device (such as a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention when running the instructions. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes.

[0076] Alternatively, all or part of the steps of implementing the aforementioned method embodiments may be accomplished by hardware associated with program instructions (such as a computing device such as a personal computer, a server, or a network device), and the program instructions may be stored in a computer-readable storage medium. When the program instructions are executed by a processor of a computing device, the computing device executes all or part of the steps of the methods described in the embodiments of the present invention.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that within the spirit and principles of the present invention, the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate from the protection scope of the present invention.

Claims

1. A method for adjusting freezing parameters of a dual-system refrigerator, the dual-system refrigerator comprising a compressor, a condenser, a drying filter, a three-way solenoid valve, a refrigerating capillary, a freezing capillary, a refrigerating evaporator for refrigerating a refrigerating compartment, and a freezing evaporator for refrigerating a freezing compartment, wherein: One end of the compressor, the condenser, the filter drier and the first end of the three-way solenoid valve are connected in sequence, the second end of the three-way solenoid valve, the refrigeration capillary and one end of the refrigeration evaporator are connected in sequence, the third end of the three-way solenoid valve, the freezing capillary and one end of the freezing evaporator are connected in sequence, the other end of the refrigeration evaporator is connected to one end of the freezing evaporator, and the other end of the freezing evaporator is connected to the other end of the compressor, wherein the first end of the three-way solenoid valve is connected to the second end, the refrigeration capillary is connected, the refrigeration evaporator and the freezing evaporator are connected in series, and the refrigeration compartment and the freezing compartment are refrigerated together; the first end of the three-way solenoid valve is connected to the third end, the freezing capillary is connected, the freezing evaporator and the compressor are connected in series, only the freezing compartment is refrigerated, and the refrigeration capillary and the freezing capillary cannot be connected at the same time; the method comprises: After the compressor is turned on, the refrigerating compartment temperature is obtained. When the refrigerating compartment temperature is less than or equal to the refrigerating shutdown temperature, the freezing compartment temperature is obtained and judged whether it is in a preset temperature interval about the target freezing gear, and the left and right endpoints of the temperature interval are respectively the preset freezing shutdown temperature and the freezing startup temperature; If not, the temperature interval is expanded according to a preset rule, and the conduction of the freezing capillary tube and / or the closing of the compressor are controlled according to the freezing compartment temperature, until the freezing compartment temperature is less than or equal to the refrigeration shutdown temperature, the freezing compartment temperature is in the most recently determined temperature interval, and the left and right endpoint values ​​of the temperature interval are determined as the target freezing startup temperature and the target freezing shutdown temperature for the target freezing gear; Wherein, the step of expanding the temperature range according to a preset rule includes: when the temperature of the refrigerating compartment is less than or equal to the refrigerating shutdown temperature and the temperature of the freezing compartment is not in the most recently determined temperature range, expanding the most recently determined temperature range according to the temperature of the freezing compartment; The step of expanding the last determined temperature range according to the freezing compartment temperature includes: increasing the last determined freezing start temperature and decreasing the last determined freezing stop temperature according to the freezing compartment temperature; The step of increasing the last determined freezing start-up temperature and reducing the last determined freezing stop-down temperature according to the freezing compartment temperature includes: if the freezing compartment temperature is greater than or equal to the last determined freezing start-up temperature, determining the freezing compartment temperature as the current freezing start-up temperature, and using the freezing compartment temperature and the last determined freezing start-up temperature to reduce the last determined freezing stop-down temperature to obtain the current freezing stop-down temperature; If the freezer compartment temperature is less than or equal to the most recently determined freezing shutdown temperature, the freezer compartment temperature is determined as the current freezing shutdown temperature, and the freezer compartment temperature and the most recently determined freezing shutdown temperature are used to increase the most recently determined freezing start-up temperature to obtain the current freezing start-up temperature.

2. The method for adjusting freezing parameters of a dual-system refrigerator according to claim 1, characterized in that: The step of using the freezing compartment temperature and the most recently determined freezing start temperature to reduce the most recently determined freezing stop temperature to obtain the current freezing stop temperature comprises: According to F off(n) =F off(n-1) -|FF on(n-1) |Determine the refrigeration shutdown temperature for this time, Among them, F OFF(n) is the nth refrigeration shutdown temperature, F off(n-1) is the freezing shutdown temperature determined for the n-1th time, F is the freezing compartment temperature, F on(n-1) It is the freezing start-up temperature determined for the n-1th time.

3. The method for adjusting freezing parameters of a dual-system refrigerator according to claim 2, characterized in that: The step of using the freezing compartment temperature and the most recently determined freezing shutdown temperature to reduce the most recently determined freezing startup temperature to obtain the current freezing startup temperature comprises: According to F on(n)＝ F on(n-1) +|FF off(n-1) |Determine the freezing start-up temperature for this time, Among them, F on(n) is the nth freezing start-up temperature, F on(n-1) is the freezing start-up temperature determined for the n-1th time, F is the freezing compartment temperature, F off(n-1) It is the refrigeration shutdown temperature determined for the n-1th time.

4. The method for adjusting freezing parameters of a dual-system refrigerator according to claim 1, characterized in that: The step of controlling the conduction of the freezing capillary tube and / or the closing of the compressor according to the temperature of the freezing compartment comprises: If the temperature of the freezing chamber is greater than or equal to the most recently determined freezing shutdown temperature, the freezing capillary tube is turned on until the temperature of the freezing chamber is less than the currently determined freezing shutdown temperature, and the compressor is turned off; and If the temperature of the freezing compartment is less than or equal to the most recently determined freezing start-up temperature, the compressor is turned off.

5. The method for adjusting freezing parameters of a dual-system refrigerator according to claim 1, characterized in that: The start-up conditions of the compressor are: The temperature of the refrigerated compartment is greater than or equal to the refrigerated startup temperature; or The refrigerating compartment temperature is between the refrigerating startup temperature and the refrigerating shutdown temperature and the freezing compartment temperature is greater than or equal to the most recently determined freezing startup temperature.

6. The method for adjusting freezing parameters of a dual-system refrigerator according to claim 1, characterized in that: The step of obtaining the temperature of the refrigerating compartment includes: obtaining the temperature of the refrigerating compartment detected by a temperature detection device arranged in the refrigerating compartment; and The step of obtaining the temperature of the freezing compartment includes: obtaining the temperature of the freezing compartment detected by a temperature detection device arranged in the freezing compartment.

7. A freezing parameter adjustment device, characterized in that: It comprises a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, it is used to implement the freezing parameter adjustment method of the dual-system refrigerator according to any one of claims 1 to 6.

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